* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #c4621a;
    --primary-dark: #a0451c;
    --secondary: #9b3e2a;
    --bg: #1a1208;
    --bg-card: #2a1f10;
    --text: #f5ede0;
    --text-muted: #b89070;
    --border: #4a3520;
    --success: #7ab648;
    --error: #d94f3a;
    --warning: #e8a020;
    --star-color: #e8a020;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
header {
    text-align: center;
    padding: 20px 0;
    border-bottom: 1px solid var(--border);
    margin-bottom: 40px;
}

.logo {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: contain;
}

header h1 {
    font-size: 3rem;
    color: var(--text);
    margin-bottom: 10px;
}

header h1 a {
    text-decoration: none;
    color: var(--text);
}

.tagline {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 5px;
}

.subtitle {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 20px;
}

nav {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
}

nav a {
    color: var(--text-muted);
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 8px;
    transition: all 0.2s;
    border: 1px solid transparent;
    font-weight: 500;
}

nav a:hover {
    background: var(--bg-card);
    border-color: var(--border);
    color: var(--text);
}

nav a.active {
    background: var(--primary);
    color: #f5f0e8;
    border-color: var(--primary);
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 20px 20px 40px 20px;
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--text);
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 40px;
}

/* Feature Cards */
.feature-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    margin-top: 40px;
}

.feature-card {
    background: var(--bg-card);
    padding: 36px;
    border-radius: 12px;
    border: 1px solid var(--border);
    text-align: center;
    transition: transform 0.2s;
}

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

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.6rem;
    margin-bottom: 12px;
    color: var(--text);
}

.feature-card p {
    color: var(--text-muted);
    margin-bottom: 24px;
    line-height: 1.7;
}

.card-buttons {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 12px 28px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: all 0.2s;
}

.btn-primary {
    background: var(--primary);
    color: #f5f0e8;
    border: 1px solid var(--primary);
}

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

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

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

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

/* Features */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    margin-top: 60px;
}

.feature {
    background: var(--bg-card);
    padding: 28px;
    border-radius: 12px;
    text-align: center;
    border: 1px solid var(--border);
}

.feature h3 {
    font-size: 1.4rem;
    margin-bottom: 12px;
}

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

/* Form */
.form-container {
    max-width: 600px;
    margin: 0 auto;
    background: var(--bg-card);
    padding: 40px;
    border-radius: 12px;
    border: 1px solid var(--border);
}

.form-group {
    margin-bottom: 22px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 11px 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg);
    color: var(--text);
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent);
}

.form-group textarea {
    resize: vertical;
}

.char-count {
    display: block;
    text-align: right;
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.form-notice {
    background: rgba(139, 105, 20, 0.08);
    border: 1px solid var(--warning);
    border-radius: 8px;
    padding: 12px;
    margin-bottom: 20px;
}

.form-notice p {
    color: var(--warning);
    font-size: 0.9rem;
    margin: 0;
}

/* Star Rating */
.star-rating {
    display: flex;
    gap: 8px;
    margin-bottom: 8px;
}

.star {
    font-size: 2.5rem;
    color: var(--border);
    cursor: pointer;
    transition: all 0.2s;
    user-select: none;
}

.star:hover {
    transform: scale(1.15);
}

.star.active {
    color: var(--star-color);
}

.rating-text {
    display: block;
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-top: 4px;
}

/* Message */
.message {
    padding: 14px;
    border-radius: 8px;
    margin-top: 20px;
    text-align: center;
}

.message.success {
    background: rgba(74, 124, 89, 0.1);
    border: 1px solid var(--success);
    color: var(--success);
}

.message.error {
    background: rgba(139, 58, 58, 0.1);
    border: 1px solid var(--error);
    color: var(--error);
}

.hidden {
    display: none !important;
}

/* Confessions */
.confessions-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 20px;
}

.filters select {
    padding: 10px 16px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg-card);
    color: var(--text);
    font-size: 1rem;
    cursor: pointer;
}

.confessions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.confession-card {
    background: var(--bg-card);
    padding: 22px;
    border-radius: 12px;
    border: 1px solid var(--border);
    transition: transform 0.2s;
}

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

.confession-category {
    display: inline-block;
    padding: 3px 10px;
    background: var(--primary);
    color: #f5f0e8;
    border-radius: 20px;
    font-size: 0.82rem;
    margin-bottom: 12px;
}

.confession-text {
    color: var(--text);
    font-size: 1rem;
    margin-bottom: 16px;
    line-height: 1.6;
}

.confession-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.confession-date {
    font-size: 0.85rem;
}

.like-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.2rem;
    transition: color 0.2s;
    padding: 4px 8px;
}

.like-btn:hover:not(:disabled) {
    color: var(--error);
}

.like-btn:disabled {
    cursor: not-allowed;
}

/* Teacher Ratings */
.ratings-header {
    margin-bottom: 30px;
}

.ratings-header h2 {
    margin-bottom: 20px;
}

.filters {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.search-input {
    flex: 1;
    min-width: 250px;
    padding: 10px 16px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg-card);
    color: var(--text);
    font-size: 1rem;
}

.search-input:focus {
    outline: none;
    border-color: var(--accent);
}

.filter-select {
    padding: 10px 16px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg-card);
    color: var(--text);
    font-size: 1rem;
    cursor: pointer;
}

.ratings-container {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.teacher-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 28px;
    transition: transform 0.2s;
}

.teacher-card:hover {
    transform: translateY(-2px);
}

.teacher-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 22px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--border);
    flex-wrap: wrap;
    gap: 20px;
}

.teacher-info {
    flex: 1;
}

.teacher-name {
    font-size: 1.7rem;
    color: var(--text);
    margin-bottom: 8px;
}

.teacher-department {
    display: inline-block;
    padding: 3px 10px;
    background: var(--primary);
    color: #f5f0e8;
    border-radius: 20px;
    font-size: 0.82rem;
}

.teacher-rating {
    text-align: right;
}

.average-rating {
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--star-color);
    line-height: 1;
    margin-bottom: 8px;
}

.stars-display {
    display: flex;
    gap: 4px;
    margin-bottom: 6px;
    justify-content: flex-end;
}

.stars-display .star {
    font-size: 1.2rem;
}

.stars-display .star.filled {
    color: var(--star-color);
}

.stars-display .star.half-filled {
    color: var(--star-color);
    opacity: 0.5;
}

.stars-display .star.empty {
    color: var(--border);
}

.rating-count {
    font-size: 0.88rem;
    color: var(--text-muted);
}

.ratings-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.individual-rating {
    background: var(--bg);
    padding: 18px;
    border-radius: 10px;
    border: 1px solid var(--border);
}

.rating-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

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

.rating-review {
    color: var(--text);
    line-height: 1.7;
    margin-bottom: 14px;
}

.rating-footer {
    display: flex;
    justify-content: flex-end;
}

.helpful-btn {
    background: none;
    border: 1px solid var(--border);
    color: var(--text-muted);
    padding: 5px 12px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.2s;
}

.helpful-btn:hover:not(:disabled) {
    border-color: var(--success);
    color: var(--success);
}

.helpful-btn:disabled {
    cursor: not-allowed;
}

.helpful-btn.marked-helpful {
    border-color: var(--success);
    color: var(--success);
}

.loading {
    text-align: center;
    padding: 60px;
    color: var(--text-muted);
    font-size: 1.2rem;
}

.no-confessions,
.no-ratings {
    text-align: center;
    padding: 60px;
    color: var(--text-muted);
    font-size: 1.2rem;
}

/* Moderation Notice */
.moderation-notice {
    background: var(--bg-card);
    padding: 18px;
    border-radius: 10px;
    border: 1px solid var(--border);
    margin-top: 40px;
    text-align: center;
}

.moderation-notice p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.moderation-notice a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s;
}

.moderation-notice a:hover {
    color: var(--primary);
}

.moderation-notice code {
    background: var(--bg);
    padding: 2px 8px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    color: var(--error);
    font-size: 0.9rem;
}

/* Footer */
footer {
    text-align: center;
    padding: 40px 0;
    margin-top: 60px;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
}

.disclaimer {
    font-size: 0.85rem;
    margin-top: 10px;
    color: var(--text-muted);
    opacity: 0.7;
}

.developer-credit {
    margin-top: 20px;
    font-size: 0.9rem;
}

.developer-credit p {
    margin: 8px 0;
}

.developer-name {
    position: relative;
    display: inline-block;
    color: var(--accent);
    font-weight: 600;
    cursor: pointer;
    transition: color 0.2s;
}

.developer-name:hover {
    color: var(--primary);
}

.developer-card {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-10px);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 18px;
    min-width: 280px;
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.1);
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    z-index: 1000;
    pointer-events: none;
}

.developer-name:hover .developer-card {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(-20px);
}

.card-content {
    font-family: 'Courier New', monospace;
    color: var(--text);
    font-size: 0.9rem;
    line-height: 1.8;
}

.terminal-line {
    margin: 4px 0;
}

.terminal-line:first-child {
    color: var(--accent);
    font-weight: 700;
    margin-bottom: 8px;
}

.social-link a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.social-link a:hover {
    color: var(--primary);
}

.social-link a::before {
    content: "📷";
    font-size: 1rem;
}

.about-duet {
    background: var(--bg-card);
    padding: 40px;
    border-radius: 12px;
    border: 1px solid var(--border);
    margin-top: 60px;
    text-align: center;
}

.about-duet h3 {
    font-size: 1.7rem;
    margin-bottom: 18px;
    color: var(--text);
}

.about-duet p {
    color: var(--text-muted);
    font-size: 1.05rem;
    line-height: 1.8;
    max-width: 800px;
    margin: 0 auto;
}

/* Header with Navbar */
.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    flex-wrap: wrap;
    gap: 20px;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 15px;
    text-decoration: none;
}

.site-title {
    font-size: 1.8rem;
    color: var(--text);
    margin: 0;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: 1px solid var(--border);
    color: var(--text);
    padding: 10px 15px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1.2rem;
}

/* Homepage Header */
.homepage-header {
    text-align: center;
    padding: 40px 0;
}

.homepage-header .logo {
    width: 80px;
    height: 80px;
    margin-bottom: 20px;
}

.homepage-header h1 {
    font-size: 3rem;
    color: var(--text);
    margin-bottom: 10px;
}

/* Teacher Selection & Autocomplete */
.teacher-suggestions {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-top: none;
    border-radius: 0 0 8px 8px;
    max-height: 200px;
    overflow-y: auto;
    z-index: 1000;
    display: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.teacher-suggestions.show {
    display: block;
}

.suggestion-item {
    padding: 12px 16px;
    cursor: pointer;
    transition: background 0.15s;
    border-bottom: 1px solid var(--border);
}

.suggestion-item:last-child {
    border-bottom: none;
}

.suggestion-item:hover {
    background: var(--bg);
}

.suggestion-name {
    font-weight: 600;
    color: var(--text);
    display: block;
    margin-bottom: 4px;
}

.suggestion-dept {
    font-size: 0.85rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 8px;
    justify-content: space-between;
}

.suggestion-rating {
    color: var(--star-color);
    font-size: 0.85rem;
    white-space: nowrap;
}

.teacher-input-wrapper {
    position: relative;
}

.no-suggestions {
    padding: 12px 16px;
    color: var(--text-muted);
    font-size: 0.9rem;
    text-align: center;
}

.existing-teachers-section {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 22px;
    margin-bottom: 28px;
}

.existing-teachers-section h3 {
    margin-bottom: 14px;
    color: var(--text);
    font-size: 1.15rem;
}

.quick-select-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 10px;
    max-height: 300px;
    overflow-y: auto;
    padding: 10px;
    background: var(--bg);
    border-radius: 8px;
}

.teacher-quick-select {
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 11px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    text-align: left;
}

.teacher-quick-select:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}

.teacher-quick-select.selected {
    border-color: var(--accent);
    background: rgba(74, 74, 74, 0.06);
}

.quick-select-name {
    font-weight: 600;
    color: var(--text);
    margin-bottom: 4px;
    display: block;
}

.quick-select-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
}

.quick-select-dept {
    color: var(--text-muted);
    flex: 1;
    margin-right: 8px;
}

.quick-select-rating {
    color: var(--star-color);
    font-weight: 600;
    white-space: nowrap;
}

.input-hint {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 4px;
    display: block;
}

/* Scrollbar styling */
.quick-select-grid::-webkit-scrollbar,
.teacher-suggestions::-webkit-scrollbar {
    width: 6px;
}

.quick-select-grid::-webkit-scrollbar-track,
.teacher-suggestions::-webkit-scrollbar-track {
    background: var(--bg);
    border-radius: 4px;
}

.quick-select-grid::-webkit-scrollbar-thumb,
.teacher-suggestions::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

.quick-select-grid::-webkit-scrollbar-thumb:hover,
.teacher-suggestions::-webkit-scrollbar-thumb:hover {
    background: var(--secondary);
}

/* Responsive */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }

    .hero h2 {
        font-size: 2rem;
    }

    .form-container {
        padding: 24px;
    }

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

    .feature-cards {
        grid-template-columns: 1fr;
    }

    .teacher-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .teacher-rating {
        text-align: left;
    }

    .stars-display {
        justify-content: flex-start;
    }

    .developer-card {
        left: 0;
        right: 0;
        transform: translateX(0) translateY(-10px);
        margin: 0 20px;
        min-width: auto;
    }

    .developer-name:hover .developer-card {
        transform: translateX(0) translateY(-20px);
    }

    .filters {
        flex-direction: column;
    }

    .search-input {
        width: 100%;
    }

    nav {
        gap: 6px;
    }

    nav a {
        padding: 8px 14px;
        font-size: 0.9rem;
    }

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

    .logo-section {
        justify-content: center;
    }

    .mobile-menu-toggle {
        display: block;
        width: 100%;
    }

    nav {
        display: none;
        flex-direction: column;
        width: 100%;
    }

    nav.show {
        display: flex;
    }

    nav a {
        width: 100%;
        text-align: center;
    }

    .quick-select-grid {
        grid-template-columns: 1fr;
        max-height: 250px;
    }

    .suggestion-dept {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }
}

@media (max-width: 480px) {
    header h1 {
        font-size: 1.6rem;
    }

    .feature-icon {
        font-size: 2.5rem;
    }

    .teacher-name {
        font-size: 1.4rem;
    }

    .average-rating {
        font-size: 2rem;
    }
}