/* ============================================
   EduPhysics Academy - Main Stylesheet
   Modern, Premium Design with Animations
   ============================================ */

/* ========== CSS Variables ========== */
:root {
    --primary-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a855f7 100%);
    --secondary-gradient: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
    --success-gradient: linear-gradient(135deg, #10b981 0%, #34d399 100%);
    --warning-gradient: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);
    --danger-gradient: linear-gradient(135deg, #ef4444 0%, #f87171 100%);
    --physics-gradient: linear-gradient(135deg, #3b82f6 0%, #60a5fa 100%);
    --chemistry-gradient: linear-gradient(135deg, #8b5cf6 0%, #a78bfa 100%);
    --maths-gradient: linear-gradient(135deg, #10b981 0%, #34d399 100%);

    --primary-color: #6366f1;
    --primary-light: #818cf8;
    --primary-dark: #4f46e5;
    --secondary-color: #8b5cf6;
    --accent-color: #a855f7;

    --success-color: #10b981;
    --error-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #3b82f6;

    --bg-dark: #0a0a1a;
    --bg-primary: #0f1629;
    --bg-secondary: #1a1f3c;
    --bg-tertiary: #252b4a;
    --bg-card: rgba(26, 31, 60, 0.8);
    --bg-glass: rgba(255, 255, 255, 0.05);

    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --text-dark: #1e293b;

    --border-color: rgba(148, 163, 184, 0.15);
    --border-light: rgba(255, 255, 255, 0.1);

    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-2xl: 2rem;
    --radius-full: 9999px;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 30px rgba(99, 102, 241, 0.4);
    --shadow-glow-lg: 0 0 60px rgba(99, 102, 241, 0.3);

    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;

    --font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* ========== Reset & Base ========== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    min-height: 100vh;
}

/* ========== Typography ========== */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-light);
}

.gradient-text {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ========== Utility Classes ========== */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.hidden {
    display: none !important;
}

.required {
    color: var(--error-color);
}

/* ========== Glass Card ========== */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

/* ========== Buttons ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font-family);
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.btn-glow::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: var(--primary-gradient);
    border-radius: inherit;
    z-index: -1;
    opacity: 0;
    filter: blur(15px);
    transition: opacity var(--transition-base);
}

.btn-glow:hover::before {
    opacity: 0.6;
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-secondary);
    border-color: var(--primary-color);
}

.btn-danger {
    background: var(--danger-gradient);
    color: white;
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-block {
    width: 100%;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

.btn-logout {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error-color);
    border: 1px solid rgba(239, 68, 68, 0.3);
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-logout:hover {
    background: var(--error-color);
    color: white;
}

/* Loader */
.loader {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

.loader-large {
    width: 40px;
    height: 40px;
    border-width: 3px;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ========== Forms ========== */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.full-width {
    grid-column: 1 / -1;
}

label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 1rem;
    font-size: 1.1rem;
    z-index: 1;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="tel"],
input[type="number"],
input[type="date"],
input[type="month"],
select,
textarea {
    width: 100%;
    padding: 1rem 1rem 1rem 3rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: var(--font-family);
    transition: all var(--transition-fast);
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

input::placeholder,
textarea::placeholder {
    color: var(--text-muted);
}

select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394a3b8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

textarea {
    min-height: 100px;
    resize: vertical;
}

.textarea-wrapper .input-icon {
    top: 1rem;
    align-self: flex-start;
}

.textarea-wrapper textarea {
    padding-left: 3rem;
}

.form-error {
    display: block;
    color: var(--error-color);
    font-size: 0.85rem;
    margin-top: var(--spacing-xs);
}

.form-hint {
    display: block;
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-top: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

/* Radio & Checkbox */
.radio-group,
.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.radio-label,
.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    padding: 0.75rem 1.25rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.radio-label:hover,
.checkbox-label:hover {
    border-color: var(--primary-color);
}

.radio-label input,
.checkbox-label input {
    display: none;
}

.radio-custom,
.checkbox-custom {
    width: 20px;
    height: 20px;
    border: 2px solid var(--text-muted);
    border-radius: 50%;
    position: relative;
    transition: all var(--transition-fast);
}

.checkbox-custom {
    border-radius: var(--radius-sm);
}

.radio-label input:checked~.radio-custom,
.checkbox-label input:checked~.checkbox-custom {
    border-color: var(--primary-color);
    background: var(--primary-color);
}

.radio-custom::after,
.checkbox-custom::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    width: 8px;
    height: 8px;
    background: white;
    border-radius: 50%;
    transition: transform var(--transition-fast);
}

.checkbox-custom::after {
    width: 6px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: translate(-50%, -60%) rotate(45deg) scale(0);
    background: transparent;
    border-radius: 0;
}

.radio-label input:checked~.radio-custom::after,
.checkbox-label input:checked~.checkbox-custom::after {
    transform: translate(-50%, -50%) scale(1);
}

.checkbox-label input:checked~.checkbox-custom::after {
    transform: translate(-50%, -60%) rotate(45deg) scale(1);
}

/* Class Selection */
.class-selection {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.class-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-lg);
    text-align: center;
    position: relative;
}

.class-option .checkbox-custom {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
}

.class-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.class-name {
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.class-price {
    color: var(--success-color);
    font-weight: 600;
    margin-top: var(--spacing-xs);
}

.class-option.physics:has(input:checked) {
    background: rgba(59, 130, 246, 0.2);
    border-color: #3b82f6;
}

.class-option.chemistry:has(input:checked) {
    background: rgba(139, 92, 246, 0.2);
    border-color: #8b5cf6;
}

.class-option.combined-maths:has(input:checked) {
    background: rgba(16, 185, 129, 0.2);
    border-color: #10b981;
}

@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }

    .class-selection {
        grid-template-columns: 1fr;
    }
}

/* ========== Animated Background ========== */
.animated-bg {
    position: fixed;
    inset: 0;
    z-index: -1;
    overflow: hidden;
    background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-primary) 50%, var(--bg-secondary) 100%);
}

.floating-shapes .shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.5;
    animation: float 20s infinite ease-in-out;
}

.shape-1 {
    width: 400px;
    height: 400px;
    background: rgba(99, 102, 241, 0.3);
    top: -100px;
    left: -100px;
    animation-delay: 0s;
}

.shape-2 {
    width: 300px;
    height: 300px;
    background: rgba(139, 92, 246, 0.3);
    top: 50%;
    right: -100px;
    animation-delay: -5s;
}

.shape-3 {
    width: 250px;
    height: 250px;
    background: rgba(6, 182, 212, 0.2);
    bottom: 10%;
    left: 20%;
    animation-delay: -10s;
}

.shape-4 {
    width: 200px;
    height: 200px;
    background: rgba(168, 85, 247, 0.3);
    top: 30%;
    left: 50%;
    animation-delay: -15s;
}

.shape-5 {
    width: 350px;
    height: 350px;
    background: rgba(59, 130, 246, 0.2);
    bottom: -100px;
    right: 20%;
    animation-delay: -8s;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0) rotate(0deg);
    }

    25% {
        transform: translate(30px, -30px) rotate(5deg);
    }

    50% {
        transform: translate(-20px, 20px) rotate(-5deg);
    }

    75% {
        transform: translate(20px, 30px) rotate(3deg);
    }
}

/* ========== Navbar ========== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--spacing-md) 0;
    transition: all var(--transition-base);
}

.navbar-transparent {
    background: transparent;
}

.navbar-dashboard {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: blur(20px);
}

.navbar.scrolled {
    background: rgba(15, 22, 41, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-lg);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
}

.logo-icon {
    font-size: 2rem;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.logo-accent {
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-secondary);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.1);
}

.nav-link.active {
    color: var(--primary-light);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.admin-badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.5rem 1rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-fast);
}

@media (max-width: 968px) {

    .nav-menu,
    .nav-actions {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    /* Make nav-container use flex-wrap for mobile dropdown */
    .nav-container {
        position: relative;
        flex-wrap: wrap;
    }

    /* Mobile menu dropdown - appears below navbar */
    .nav-menu.active {
        display: flex;
        flex-direction: column;
        order: 4;
        flex-basis: 100%;
        background: var(--bg-secondary);
        padding: var(--spacing-lg);
        margin-top: var(--spacing-md);
        border-radius: var(--radius-lg);
        border: 1px solid var(--border-color);
        gap: var(--spacing-sm);
    }

    /* Mobile nav actions - appears below nav menu */
    .nav-actions.active {
        display: flex;
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        order: 5;
        flex-basis: 100%;
        background: var(--bg-tertiary);
        padding: var(--spacing-md) var(--spacing-lg);
        margin-top: var(--spacing-sm);
        border-radius: var(--radius-lg);
        border: 1px solid var(--border-color);
        gap: var(--spacing-md);
    }

    .nav-actions.active .admin-badge {
        flex: 1;
    }

    .nav-actions.active .btn-logout {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
        white-space: nowrap;
    }

    /* Nav links styling for mobile */
    .nav-menu.active .nav-link {
        padding: 0.75rem 1rem;
        border-radius: var(--radius-md);
    }

    .nav-menu.active .nav-link:hover {
        background: var(--bg-tertiary);
    }
}

/* ========== Hero Section ========== */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 100px var(--spacing-lg) var(--spacing-2xl);
}

.hero-container {
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.5rem 1rem;
    background: rgba(99, 102, 241, 0.2);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    color: var(--primary-light);
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.6s ease;
}

.hero-title {
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.6s ease 0.1s backwards;
}

.title-line {
    display: block;
}

.hero-title .gradient-text {
    font-size: 1.15em;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    animation: fadeInUp 0.6s ease 0.2s backwards;
}

.hero-features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    animation: fadeInUp 0.6s ease 0.3s backwards;
}

.feature-pill {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.75rem 1.25rem;
    background: var(--bg-glass);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-full);
    font-weight: 500;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
    animation: fadeInUp 0.6s ease 0.4s backwards;
}

.hero-stats {
    display: flex;
    gap: var(--spacing-2xl);
    animation: fadeInUp 0.6s ease 0.5s backwards;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-primary);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-muted);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Hero Visual - Atom Animation */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.science-animation {
    position: relative;
    width: 400px;
    height: 400px;
}

.atom-container {
    position: absolute;
    inset: 0;
    display: flex;
    justify-content: center;
    align-items: center;
}

.atom-nucleus {
    width: 60px;
    height: 60px;
    background: var(--primary-gradient);
    border-radius: 50%;
    box-shadow: var(--shadow-glow-lg);
    animation: pulse 2s infinite;
}

.electron-orbit {
    position: absolute;
    border: 2px solid rgba(99, 102, 241, 0.3);
    border-radius: 50%;
    animation: rotate 4s linear infinite;
}

.orbit-1 {
    width: 200px;
    height: 200px;
    animation-duration: 3s;
}

.orbit-2 {
    width: 280px;
    height: 280px;
    transform: rotate(60deg);
    animation-duration: 4s;
    animation-direction: reverse;
}

.orbit-3 {
    width: 360px;
    height: 360px;
    transform: rotate(-60deg);
    animation-duration: 5s;
}

.electron {
    position: absolute;
    top: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 16px;
    height: 16px;
    background: var(--secondary-gradient);
    border-radius: 50%;
    box-shadow: 0 0 15px rgba(139, 92, 246, 0.8);
}

@keyframes rotate {
    to {
        transform: rotate(360deg);
    }
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.1);
    }
}

.floating-formulas {
    position: absolute;
    inset: 0;
}

.formula {
    position: absolute;
    padding: 0.5rem 1rem;
    background: var(--bg-glass);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    font-family: 'Times New Roman', serif;
    font-size: 1.1rem;
    color: var(--text-secondary);
    animation: floatFormula 6s ease-in-out infinite;
}

.f1 {
    top: 10%;
    left: 5%;
    animation-delay: 0s;
}

.f2 {
    top: 5%;
    right: 10%;
    animation-delay: -1s;
}

.f3 {
    bottom: 20%;
    left: 0;
    animation-delay: -2s;
}

.f4 {
    bottom: 5%;
    right: 5%;
    animation-delay: -3s;
}

.f5 {
    top: 50%;
    right: 0;
    animation-delay: -4s;
}

@keyframes floatFormula {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-15px);
    }
}

@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-features,
    .hero-actions,
    .hero-stats {
        justify-content: center;
    }

    .hero-visual {
        display: none;
    }
}

/* ========== Modal ========== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-container {
    width: 100%;
    max-width: 450px;
    animation: modalSlideIn 0.3s ease;
}

.modal-large {
    max-width: 700px;
}

.modal-small {
    max-width: 400px;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-30px) scale(0.95);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-content {
    padding: var(--spacing-2xl);
    position: relative;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 40px;
    height: 40px;
    background: var(--bg-tertiary);
    border: none;
    border-radius: 50%;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--error-color);
}

.modal-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.modal-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: var(--spacing-md);
}

.modal-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
    margin-top: var(--spacing-xl);
}

/* Login Modal */
.login-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.login-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
}

.login-form {
    margin-bottom: var(--spacing-lg);
}

.password-toggle {
    position: absolute;
    right: 1rem;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
    opacity: 0.7;
    transition: opacity var(--transition-fast);
}

.password-toggle:hover {
    opacity: 1;
}

.demo-credentials {
    padding: var(--spacing-md);
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-md);
    text-align: center;
}

.demo-title {
    font-weight: 600;
    color: var(--primary-light);
    margin-bottom: var(--spacing-sm);
}

.demo-info {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 0;
}

/* Delete Modal */
.delete-header {
    color: var(--warning-color);
}

.delete-icon {
    color: var(--warning-color);
}

.delete-message {
    text-align: center;
    padding: var(--spacing-lg) 0;
}

.delete-warning {
    color: var(--error-color);
    font-size: 0.9rem;
    margin-top: var(--spacing-sm);
}

/* ========== About & Subjects Sections ========== */
.about-section,
.subjects-section {
    padding: var(--spacing-3xl) var(--spacing-lg);
}

.about-section {
    background: var(--bg-primary);
}

.subjects-section {
    background: var(--bg-secondary);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-tag {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-full);
    color: var(--primary-light);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: var(--spacing-md);
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.section-desc {
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.feature-card {
    padding: var(--spacing-xl);
    transition: all var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
}

.feature-icon-wrap {
    width: 70px;
    height: 70px;
    background: var(--primary-gradient);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.feature-icon-wrap .feature-icon {
    font-size: 2rem;
}

.subjects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.subject-card {
    padding: var(--spacing-xl);
    text-align: center;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.subject-card::before {
    content: '';
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.subject-card:hover::before {
    opacity: 0.1;
}

.subject-card:hover {
    transform: translateY(-5px);
}

.physics-card::before {
    background: var(--physics-gradient);
}

.chemistry-card::before {
    background: var(--chemistry-gradient);
}

.maths-card::before {
    background: var(--maths-gradient);
}

.subject-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.subject-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    position: relative;
}

.subject-card p {
    color: var(--text-muted);
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.subject-price {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--success-color);
    position: relative;
}

/* ========== Dashboard Pages ========== */
.dashboard-page {
    background: var(--bg-primary);
}

.main-content {
    padding-top: 80px;
    min-height: calc(100vh - 200px);
}

.page-header {
    background: var(--bg-secondary);
    padding: var(--spacing-xl) 0;
    margin-bottom: var(--spacing-2xl);
    border-bottom: 1px solid var(--border-color);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.header-text h1 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
}

.header-icon {
    font-size: 1.5em;
}

.header-text p {
    margin: 0;
    color: var(--text-secondary);
}

/* Form Wrapper */
.form-section {
    padding-bottom: var(--spacing-3xl);
}

.form-wrapper {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--spacing-2xl);
}

.form-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.form-header h2 {
    margin-bottom: var(--spacing-sm);
}

.form-header p {
    color: var(--text-muted);
}

.form-section-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-light);
    margin: var(--spacing-xl) 0 var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
}

.section-icon {
    font-size: 1.25rem;
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
}

/* Fee Summary */
.fee-summary {
    padding: var(--spacing-lg);
    margin-top: var(--spacing-xl);
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.summary-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--success-color);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-color);
}

.summary-row:last-child {
    border-bottom: none;
}

.summary-row.total {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--success-color);
    margin-top: var(--spacing-sm);
}

/* Alerts */
.alert {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    animation: slideDown 0.3s ease;
}

.alert-success {
    background: rgba(16, 185, 129, 0.2);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.alert-error {
    background: rgba(239, 68, 68, 0.2);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.alert-close {
    margin-left: auto;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    font-size: 1.25rem;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========== Analytics Section ========== */
.analytics-section {
    padding: 0 0 var(--spacing-2xl);
}

.analytics-header {
    margin-bottom: var(--spacing-lg);
}

.analytics-header h2 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.analytics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.analytics-card {
    padding: var(--spacing-lg);
    transition: all var(--transition-base);
}

.analytics-card:hover {
    transform: translateY(-3px);
}

.total-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.card-icon-wrap {
    width: 60px;
    height: 60px;
    background: var(--primary-gradient);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
}

.card-content .card-value {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
}

.card-content .card-label {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.gender-card .card-header,
.class-card .card-header,
.trend-card .card-header {
    margin-bottom: var(--spacing-md);
}

.card-title {
    font-weight: 600;
    color: var(--text-secondary);
}

.card-stats {
    display: flex;
    justify-content: space-around;
    margin-bottom: var(--spacing-md);
}

.card-stats .stat-item {
    text-align: center;
}

.card-stats .stat-icon {
    font-size: 1.5rem;
    display: block;
    margin-bottom: var(--spacing-xs);
}

.card-stats .stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    display: block;
}

.card-stats .stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.gender-bar {
    display: flex;
    height: 8px;
    border-radius: var(--radius-full);
    overflow: hidden;
    background: var(--bg-tertiary);
}

.bar-male {
    background: var(--info-color);
    transition: width var(--transition-base);
}

.bar-female {
    background: #ec4899;
    transition: width var(--transition-base);
}

.class-stats {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.class-stat {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
}

.class-stat .class-icon {
    font-size: 1.25rem;
}

.class-stat .class-name {
    flex: 1;
    font-size: 0.9rem;
}

.class-stat .class-count {
    font-weight: 700;
}

.class-stat.physics {
    border-left: 3px solid #3b82f6;
}

.class-stat.chemistry {
    border-left: 3px solid #8b5cf6;
}

.class-stat.maths {
    border-left: 3px solid #10b981;
}

.trend-stats {
    display: flex;
    justify-content: space-around;
}

.trend-item {
    text-align: center;
}

.trend-item .trend-label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-xs);
}

.trend-item .trend-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--success-color);
}

/* ========== Student List Section ========== */
.student-list-section {
    padding-bottom: var(--spacing-3xl);
}

.list-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.list-header h2 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin: 0;
}

.list-controls {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    align-items: center;
}

.search-wrapper {
    position: relative;
}

.search-wrapper .search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
}

.search-input {
    width: 280px;
    padding-left: 3rem;
}

.search-clear {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.25rem;
}

.filter-group {
    display: flex;
    gap: var(--spacing-sm);
}

.filter-select {
    padding: 0.75rem 1rem;
    padding-left: 1rem;
    min-width: 140px;
}

/* Table */
.table-container {
    overflow-x: auto;
}

.student-table {
    width: 100%;
    border-collapse: collapse;
}

.student-table th,
.student-table td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.student-table th {
    background: var(--bg-tertiary);
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-secondary);
    position: sticky;
    top: 0;
}

.student-table tbody tr {
    transition: background var(--transition-fast);
}

.student-table tbody tr:hover {
    background: rgba(99, 102, 241, 0.1);
}

.th-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.sortable {
    cursor: pointer;
}

.sortable:hover {
    color: var(--primary-light);
}

.student-name {
    font-weight: 600;
}

.student-email {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.class-badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
    margin: 0.1rem;
}

.class-badge.physics {
    background: rgba(59, 130, 246, 0.2);
    color: #60a5fa;
}

.class-badge.chemistry {
    background: rgba(139, 92, 246, 0.2);
    color: #a78bfa;
}

.class-badge.combined-maths {
    background: rgba(16, 185, 129, 0.2);
    color: #34d399;
}

.gender-badge {
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
}

.gender-badge.male {
    background: rgba(59, 130, 246, 0.2);
    color: #60a5fa;
}

.gender-badge.female {
    background: rgba(236, 72, 153, 0.2);
    color: #f472b6;
}

.action-btns {
    display: flex;
    gap: var(--spacing-xs);
}

.action-btn {
    width: 36px;
    height: 36px;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.action-btn.view {
    background: rgba(59, 130, 246, 0.2);
    color: #60a5fa;
}

.action-btn.edit {
    background: rgba(245, 158, 11, 0.2);
    color: #fbbf24;
}

.action-btn.delete {
    background: rgba(239, 68, 68, 0.2);
    color: #f87171;
}

.action-btn:hover {
    transform: scale(1.1);
}

.empty-state,
.loading-state {
    text-align: center;
    padding: var(--spacing-3xl);
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-lg);
}

.loading-state .loader-large {
    margin: 0 auto var(--spacing-lg);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.page-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.75rem 1.25rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.page-btn:hover:not(:disabled) {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.page-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.page-numbers {
    display: flex;
    gap: var(--spacing-xs);
}

.page-num {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.page-num:hover,
.page-num.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

/* Student Details Modal */
.student-details {
    padding: var(--spacing-md) 0;
}

.detail-row {
    display: flex;
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--border-color);
}

.detail-label {
    width: 140px;
    font-weight: 500;
    color: var(--text-muted);
}

.detail-value {
    flex: 1;
    color: var(--text-primary);
}

/* ========== Footer ========== */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.footer-top {
    padding: var(--spacing-3xl) 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 2fr;
    gap: var(--spacing-2xl);
}

.footer-brand .footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.footer-desc {
    color: var(--text-muted);
    margin-bottom: var(--spacing-lg);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-link {
    width: 40px;
    height: 40px;
    background: var(--bg-tertiary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    transition: all var(--transition-fast);
}

.social-link:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

.footer-links-section h4 {
    margin-bottom: var(--spacing-lg);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: var(--text-muted);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--text-primary);
}

.footer-contact h4 {
    margin-bottom: var(--spacing-lg);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    color: var(--text-muted);
    font-size: 0.9rem;
}

.contact-icon {
    font-size: 1rem;
}

.footer-bottom {
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--border-color);
}

.footer-bottom .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-bottom p {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-bottom-links {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-bottom-links a {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Dashboard Footer */
.dashboard-footer {
    margin-top: auto;
}

.dashboard-footer .footer-content {
    padding: var(--spacing-xl) 0;
}

.dashboard-footer .footer-main {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.dashboard-footer .footer-contact-info {
    display: flex;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

.dashboard-footer .footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

@media (max-width: 968px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 640px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }

    .footer-bottom .container {
        flex-direction: column;
        text-align: center;
    }

    .list-header {
        flex-direction: column;
        align-items: stretch;
    }

    .list-controls {
        flex-direction: column;
    }

    .search-input {
        width: 100%;
    }

    .filter-group {
        flex-direction: column;
    }

    .filter-select {
        width: 100%;
    }
}

/* ========== Finance Page Styles ========== */
.finance-overview {
    padding: 0 0 var(--spacing-2xl);
}

.overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.finance-card {
    position: relative;
    padding: var(--spacing-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    overflow: hidden;
}

.card-glow {
    position: absolute;
    width: 150px;
    height: 150px;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.3;
}

.revenue-glow {
    background: #10b981;
    top: -50px;
    right: -50px;
}

.month-glow {
    background: #6366f1;
    top: -50px;
    right: -50px;
}

.avg-glow {
    background: #f59e0b;
    top: -50px;
    right: -50px;
}

.classes-glow {
    background: #8b5cf6;
    top: -50px;
    right: -50px;
}

.revenue-icon-wrap {
    background: var(--success-gradient);
}

.month-icon-wrap {
    background: var(--primary-gradient);
}

.avg-icon-wrap {
    background: var(--warning-gradient);
}

.classes-icon-wrap {
    background: var(--chemistry-gradient);
}

.card-content {
    position: relative;
    z-index: 1;
}

.card-content .card-label {
    display: block;
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-xs);
}

.card-content .card-value {
    display: block;
    font-size: 1.75rem;
    font-weight: 700;
}

.revenue-value {
    color: var(--success-color);
}

.month-value {
    color: var(--primary-light);
}

.avg-value {
    color: var(--warning-color);
}

.classes-value {
    color: var(--secondary-color);
}

.card-content .card-subtitle {
    display: block;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
}

/* Filters Section */
.filters-section {
    padding-bottom: var(--spacing-2xl);
}

.filters-wrapper {
    padding: var(--spacing-xl);
}

.filters-header {
    margin-bottom: var(--spacing-lg);
}

.filters-header h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin: 0;
}

.filter-icon {
    font-size: 1.25rem;
}

.filters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    align-items: end;
}

.filter-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
}

.filter-input {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-family);
}

.date-range-inputs {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.date-separator {
    color: var(--text-muted);
}

.filter-actions {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-end;
}

/* Class Revenue Section */
.class-revenue-section {
    padding-bottom: var(--spacing-2xl);
}

.class-revenue-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.class-revenue-card {
    padding: var(--spacing-xl);
}

.class-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.class-header .class-icon-wrap {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.physics-icon {
    background: rgba(59, 130, 246, 0.2);
}

.chemistry-icon {
    background: rgba(139, 92, 246, 0.2);
}

.maths-icon {
    background: rgba(16, 185, 129, 0.2);
}

.class-header h3 {
    margin: 0;
    font-size: 1.1rem;
}

.class-students {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.class-amount {
    margin-bottom: var(--spacing-md);
}

.amount-label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-xs);
}

.amount-value {
    font-size: 1.5rem;
    font-weight: 700;
}

.physics-revenue .amount-value {
    color: #60a5fa;
}

.chemistry-revenue .amount-value {
    color: #a78bfa;
}

.maths-revenue .amount-value {
    color: #34d399;
}

.class-progress {
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
}

.progress-bar {
    height: 100%;
    transition: width var(--transition-slow);
}

.physics-bar {
    background: var(--physics-gradient);
}

.chemistry-bar {
    background: var(--chemistry-gradient);
}

.maths-bar {
    background: var(--maths-gradient);
}

.class-percent {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Trends Section */
.trends-section {
    padding-bottom: var(--spacing-2xl);
}

.trends-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-lg);
}

.trends-card {
    padding: var(--spacing-xl);
}

.trends-card .card-header {
    margin-bottom: var(--spacing-xl);
}

.trends-card .card-header h3 {
    margin: 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* Bar Chart */
.chart-container {
    padding: var(--spacing-md) 0;
}

.bar-chart {
    display: flex;
    align-items: flex-end;
    justify-content: space-around;
    height: 200px;
    gap: var(--spacing-sm);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.chart-bar {
    flex: 1;
    max-width: 40px;
    background: var(--primary-gradient);
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
    transition: height var(--transition-slow);
    position: relative;
    min-height: 10px;
}

.chart-bar:hover {
    opacity: 0.8;
}

.chart-labels {
    display: flex;
    justify-content: space-around;
    padding-top: var(--spacing-sm);
}

.chart-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-align: center;
}

/* Fee Distribution */
.fee-distribution {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.fee-item {
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
}

.fee-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-sm);
}

.fee-label {
    font-weight: 500;
}

.fee-count {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.fee-bar-container {
    height: 8px;
    background: var(--bg-secondary);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
}

.fee-bar {
    height: 100%;
    transition: width var(--transition-slow);
}

.fee-bar-1000 {
    background: var(--info-color);
}

.fee-bar-2000 {
    background: var(--warning-color);
}

.fee-bar-3000 {
    background: var(--success-color);
}

.fee-amount {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--success-color);
}

/* Transactions Section */
.transactions-section {
    padding-bottom: var(--spacing-3xl);
}

.transactions-wrapper {
    padding: var(--spacing-lg);
    overflow-x: auto;
}

.transactions-table {
    width: 100%;
    border-collapse: collapse;
}

.transactions-table th,
.transactions-table td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.transactions-table th {
    background: var(--bg-tertiary);
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.transactions-table tbody tr:hover {
    background: rgba(99, 102, 241, 0.1);
}

.empty-transactions {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--text-muted);
}

.empty-transactions .empty-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    display: block;
}

@media (max-width: 768px) {
    .overview-grid {
        grid-template-columns: 1fr;
    }

    .filters-grid {
        grid-template-columns: 1fr;
    }

    .date-range-inputs {
        flex-direction: column;
    }

    .class-revenue-grid {
        grid-template-columns: 1fr;
    }

    .trends-grid {
        grid-template-columns: 1fr;
    }
}

/* ========== File Upload Styles ========== */
.file-upload-wrapper {
    position: relative;
}

.file-upload-area {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-base);
    background: var(--bg-tertiary);
}

.file-upload-area:hover,
.file-upload-area.drag-over {
    border-color: var(--primary-color);
    background: rgba(99, 102, 241, 0.1);
}

.upload-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.upload-text {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.upload-link {
    color: var(--primary-light);
    text-decoration: underline;
    cursor: pointer;
}

.upload-formats {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.file-preview {
    padding: var(--spacing-lg);
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.preview-content {
    flex-shrink: 0;
}

.preview-content img {
    max-width: 100px;
    max-height: 100px;
    border-radius: var(--radius-md);
    object-fit: cover;
}

.pdf-icon {
    font-size: 4rem;
}

.file-info {
    flex: 1;
}

.file-name {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    word-break: break-all;
}

.file-size {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ========== Payment Info Card ========== */
.payment-info-card {
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
}

.payment-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.payment-icon {
    font-size: 1.5rem;
}

.payment-header h3 {
    margin: 0;
    font-size: 1.1rem;
}

.payment-details {
    margin-bottom: var(--spacing-lg);
}

.payment-row {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px dashed var(--border-color);
}

.payment-row:last-child {
    border-bottom: none;
}

.payment-label {
    color: var(--text-muted);
}

.payment-value {
    font-weight: 500;
}

.payment-value.highlight {
    color: var(--primary-light);
    font-weight: 700;
    font-size: 1.1rem;
    font-family: monospace;
}

.payment-note {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: rgba(245, 158, 11, 0.1);
    border-radius: var(--radius-md);
    border: 1px solid rgba(245, 158, 11, 0.2);
}

.note-icon {
    font-size: 1.25rem;
    flex-shrink: 0;
}

.payment-note p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* ========== Student Status Badges ========== */
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 500;
}

.status-badge.pending {
    background: rgba(245, 158, 11, 0.2);
    color: #fbbf24;
}

.status-badge.verified {
    background: rgba(16, 185, 129, 0.2);
    color: #34d399;
}

.status-badge.rejected {
    background: rgba(239, 68, 68, 0.2);
    color: #f87171;
}

/* Receipt Preview in Modal */
.receipt-preview {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    text-align: center;
}

.receipt-preview img {
    max-width: 100%;
    max-height: 300px;
    border-radius: var(--radius-md);
}

.receipt-preview .pdf-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    color: var(--primary-light);
}

/* Success Button Variant */
.btn-success {
    background: var(--success-gradient);
    border: none;
    color: var(--text-primary);
}

.btn-success:hover {
    filter: brightness(1.1);
    transform: translateY(-2px);
}

/* ========== Payment Type Analytics ========== */
.payment-type-section {
    padding: var(--spacing-xl) 0;
}

.payment-type-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.payment-type-card {
    padding: var(--spacing-xl);
    position: relative;
    overflow: hidden;
}

.payment-type-card.bank-transfer {
    border-left: 3px solid var(--primary-color);
}

.payment-type-card.local-payment {
    border-left: 3px solid var(--success-color);
}

.payment-type-card.pending-verification {
    border-left: 3px solid var(--warning-color);
}

.type-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.type-icon-wrap {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.bank-icon {
    background: rgba(99, 102, 241, 0.2);
}

.local-icon {
    background: rgba(16, 185, 129, 0.2);
}

.pending-icon {
    background: rgba(245, 158, 11, 0.2);
}

.type-info h3 {
    margin: 0;
    font-size: 1rem;
}

.type-subtitle {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.type-stats {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}

.type-stat {
    text-align: center;
}

.type-stat .stat-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
}

.type-stat .stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.warning-text {
    color: var(--warning-color) !important;
}

.type-progress {
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
}

.type-progress .bank-bar {
    background: var(--primary-gradient);
}

.type-progress .local-bar {
    background: var(--success-gradient);
}

.type-percent {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-align: center;
}

/* ========== Type Badges ========== */
.type-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 500;
}

.type-badge.online {
    background: rgba(99, 102, 241, 0.2);
    color: var(--primary-light);
}

.type-badge.manual {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success-color);
}

/* ========== Receipt Section ========== */
.receipt-section {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
}

.receipt-header h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.receipt-preview {
    background: var(--bg-tertiary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    text-align: center;
}

.receipt-preview img {
    max-width: 100%;
    max-height: 400px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.receipt-preview img:hover {
    transform: scale(1.02);
}

.receipt-name {
    margin-top: var(--spacing-sm);
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ========== Verification Actions ========== */
.verification-actions {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
}

.verification-header h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.verification-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
}

/* ========== Detail Row Improvements ========== */
.detail-row {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-light);
}

.detail-row:last-child {
    border-bottom: none;
}

.detail-label {
    color: var(--text-muted);
}

.detail-value {
    font-weight: 500;
    text-align: right;
}

@media (max-width: 992px) {
    .payment-type-grid {
        grid-template-columns: 1fr;
    }
}

/* ========== Finance Filter Section Styles ========== */
.filters-section {
    padding: var(--spacing-lg) 0;
}

.filters-wrapper {
    padding: var(--spacing-xl);
}

.filters-header {
    margin-bottom: var(--spacing-lg);
}

.filters-header h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin: 0;
    font-size: 1.1rem;
}

.filter-icon {
    font-size: 1.25rem;
}

.filters-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr auto;
    gap: var(--spacing-lg);
    align-items: end;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.filter-group label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    white-space: nowrap;
}

.date-range-inputs {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.date-separator {
    color: var(--text-muted);
    font-size: 0.85rem;
    flex-shrink: 0;
}

.filter-input {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.9rem;
    transition: all var(--transition-fast);
    min-width: 0;
}

.filter-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.filter-input option {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.filter-actions {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
    flex-shrink: 0;
}

.filter-actions .btn {
    white-space: nowrap;
    padding: 0.75rem 1.25rem;
}

/* Responsive Filter Styles */
@media (max-width: 1200px) {
    .filters-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-md);
    }

    .filter-group:first-child {
        grid-column: 1 / -1;
    }

    .filter-actions {
        grid-column: 1 / -1;
        justify-content: flex-end;
    }
}

@media (max-width: 768px) {
    .filters-wrapper {
        padding: var(--spacing-lg);
    }

    .filters-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .filter-group:first-child {
        grid-column: auto;
    }

    .date-range-inputs {
        flex-direction: column;
        align-items: stretch;
    }

    .date-separator {
        text-align: center;
        padding: var(--spacing-xs) 0;
    }

    .filter-actions {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .filter-actions .btn {
        width: 100%;
        justify-content: center;
    }
}

/* ========== Finance Overview Cards Responsive ========== */
@media (max-width: 992px) {
    .overview-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .overview-grid {
        grid-template-columns: 1fr;
    }
}

/* ========== Pending Verification Badge ========== */
.pending-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.2), rgba(245, 158, 11, 0.3));
    border: 1px solid rgba(245, 158, 11, 0.4);
    padding: 0.35rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    margin-left: var(--spacing-md);
    animation: pendingPulse 2s ease-in-out infinite;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.pending-badge:hover {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.3), rgba(245, 158, 11, 0.4));
    transform: scale(1.05);
}

.pending-icon {
    font-size: 0.9rem;
}

.pending-count {
    background: var(--warning-color);
    color: #000;
    padding: 0.15rem 0.45rem;
    border-radius: var(--radius-full);
    font-size: 0.7rem;
    font-weight: 700;
    min-width: 1.2rem;
    text-align: center;
}

.pending-text {
    color: var(--warning-color);
    font-weight: 500;
}

@keyframes pendingPulse {

    0%,
    100% {
        box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.4);
    }

    50% {
        box-shadow: 0 0 0 6px rgba(245, 158, 11, 0);
    }
}

/* Hide pending badge when no pending items */
.pending-badge.hidden {
    display: none;
}

/* ========== Pending Row & Dot Styles ========== */
.pending-row {
    background: rgba(245, 158, 11, 0.08) !important;
    border-left: 3px solid var(--warning-color) !important;
}

.pending-row:hover {
    background: rgba(245, 158, 11, 0.15) !important;
}

.pending-dot {
    display: inline-block;
    width: 10px;
    height: 10px;
    background: var(--warning-color);
    border-radius: 50%;
    margin-left: 0.5rem;
    animation: dotPulse 1.5s ease-in-out infinite;
    vertical-align: middle;
    box-shadow: 0 0 4px rgba(245, 158, 11, 0.6);
}

@keyframes dotPulse {

    0%,
    100% {
        transform: scale(1);
        opacity: 1;
    }

    50% {
        transform: scale(1.2);
        opacity: 0.7;
    }
}

/* Pending action button highlight */
.action-btn.pending-action {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.3), rgba(245, 158, 11, 0.4)) !important;
    border: 1px solid rgba(245, 158, 11, 0.5) !important;
    animation: pendingBtnPulse 2s ease-in-out infinite;
}

.action-btn.pending-action:hover {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.5), rgba(245, 158, 11, 0.6)) !important;
}

@keyframes pendingBtnPulse {

    0%,
    100% {
        box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.4);
    }

    50% {
        box-shadow: 0 0 0 4px rgba(245, 158, 11, 0);
    }
}

/* ========== Delete All Modal Styles ========== */
.delete-all-btn {
    margin-left: auto;
    flex-shrink: 0;
}

/* Modal Container Override for Delete All */
#deleteAllModal .modal-container {
    max-width: 600px;
    width: 95%;
    max-height: 90vh;
}

#deleteAllModal .modal-content {
    max-height: 85vh;
    overflow-y: auto;
}

.delete-all-modal {
    width: 100%;
}

.danger-header {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.15), rgba(239, 68, 68, 0.25));
    border-bottom: 2px solid rgba(239, 68, 68, 0.4);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.danger-header h2 {
    color: #ef4444;
    margin: 0;
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.delete-all-content {
    padding: var(--spacing-lg);
}

/* Warning Box */
.warning-box {
    display: flex;
    gap: var(--spacing-md);
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.08), rgba(239, 68, 68, 0.12));
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.warning-icon {
    font-size: 1.75rem;
    flex-shrink: 0;
    line-height: 1;
}

.warning-text {
    flex: 1;
    min-width: 0;
}

.warning-text h3 {
    color: #ef4444;
    margin: 0 0 var(--spacing-xs) 0;
    font-size: 0.95rem;
    font-weight: 600;
}

.warning-text p {
    color: var(--text-secondary);
    margin: 0;
    font-size: 0.85rem;
    line-height: 1.5;
}

/* Data Summary Box */
.data-summary-box {
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.data-summary-box h4 {
    margin: 0 0 var(--spacing-sm) 0;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--spacing-xs);
}

.summary-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm);
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    text-align: center;
}

.summary-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-bottom: 2px;
    white-space: nowrap;
}

.summary-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* Download Prompt */
.download-prompt {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.08), rgba(99, 102, 241, 0.12));
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.download-header {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
}

.download-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
    line-height: 1;
}

.download-info {
    flex: 1;
    min-width: 0;
}

.download-info h4 {
    margin: 0 0 var(--spacing-xs) 0;
    font-size: 0.9rem;
    color: var(--primary-color);
    font-weight: 600;
}

.download-info p {
    margin: 0;
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

.download-btn {
    width: 100%;
    justify-content: center;
    padding: 0.75rem 1.5rem;
}

/* Confirmation Checkbox */
.delete-confirmation {
    margin-bottom: var(--spacing-lg);
}

.confirm-checkbox {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    cursor: pointer;
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    background: var(--bg-tertiary);
}

.confirm-checkbox:hover {
    background: var(--bg-secondary);
    border-color: var(--primary-color);
}

.confirm-checkbox input[type="checkbox"] {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    margin-top: 0;
    cursor: pointer;
    accent-color: #ef4444;
}

.confirm-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* Action Buttons */
.delete-all-actions {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-end;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.delete-all-actions .btn {
    padding: 0.65rem 1.25rem;
    font-size: 0.9rem;
}

.delete-all-actions .btn-danger:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    background: rgba(239, 68, 68, 0.3);
}

/* Responsive Styles */
@media (max-width: 768px) {
    #deleteAllModal .modal-container {
        width: 95%;
        margin: var(--spacing-sm);
    }

    .summary-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 480px) {
    .danger-header h2 {
        font-size: 1.1rem;
    }

    .delete-all-content {
        padding: var(--spacing-md);
    }

    .warning-box {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-sm);
    }

    .warning-icon {
        font-size: 2rem;
    }

    .summary-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .summary-item:last-child {
        grid-column: span 2;
    }

    .delete-all-actions {
        flex-direction: column-reverse;
    }

    .delete-all-actions .btn {
        width: 100%;
        justify-content: center;
    }
}

/* ========== Modern Admin Login Styles ========== */
/* Modal Overlay & Container */
#loginModal .modal-container {
    max-width: 450px;
    width: 90%;
    margin: var(--spacing-md);
    perspective: 1000px;
}

#loginModal .modal-content {
    background: rgba(23, 23, 35, 0.85);
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    border-radius: var(--radius-xl);
    overflow: hidden;
    position: relative;
    padding: 0;
}

/* Decorative Background Elements */
#loginModal .modal-content::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at center, rgba(99, 102, 241, 0.15) 0%, transparent 60%);
    pointer-events: none;
    z-index: 0;
}

/* Header Section */
.login-header {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-xl) var(--spacing-lg);
    position: relative;
    z-index: 1;
}

.login-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-lg);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(99, 102, 241, 0.2));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    box-shadow: 0 0 0 8px rgba(99, 102, 241, 0.05);
    animation: floatingIcon 3s ease-in-out infinite;
}

@keyframes floatingIcon {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

.login-header h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    background: linear-gradient(135deg, #fff 0%, #a5b4fc 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.login-header p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Form Styles */
.login-form {
    padding: 0 var(--spacing-xl) var(--spacing-xl);
    position: relative;
    z-index: 1;
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 500;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 1rem;
    font-size: 1.1rem;
    color: var(--text-muted);
    z-index: 2;
    transition: color var(--transition-fast);
}

.input-wrapper input {
    width: 100%;
    padding: 0.875rem 1rem 0.875rem 2.75rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: all var(--transition-fast);
}

.input-wrapper input:focus {
    background: rgba(99, 102, 241, 0.05);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
    outline: none;
}

.input-wrapper input:focus+.input-icon,
.input-wrapper input:focus~.input-icon {
    color: var(--primary-color);
}

.password-toggle {
    position: absolute;
    right: 1rem;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.1rem;
    transition: color var(--transition-fast);
    padding: 0;
}

.password-toggle:hover {
    color: var(--text-primary);
}

/* Submit Button */
.btn-block {
    width: 100%;
    padding: 1rem;
    font-size: 1rem;
    font-weight: 600;
    margin-top: var(--spacing-sm);
    letter-spacing: 0.5px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.25);
}

.btn-block:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.35);
}



/* Responsive Adjustments */
@media (max-width: 480px) {
    #loginModal .modal-container {
        width: 100%;
        margin: 0;
        height: 100%;
        max-height: none;
        border-radius: 0;
    }

    #loginModal .modal-content {
        height: 100%;
        border-radius: 0;
        display: flex;
        flex-direction: column;
        justify-content: center;
        border: none;
    }

    .login-header {
        padding: var(--spacing-lg);
    }

    .login-form {
        padding: 0 var(--spacing-lg) var(--spacing-lg);
    }
}