@import url('https://fonts.googleapis.com/css2?family=Fredoka:wght@300;500;600;700&display=swap');
:root {
    --bg-dark: #140514;
    --panel-bg: linear-gradient(145deg, #2B0E2A 0%, #3B153A 60%, #260B25 100%);
    --card-surface: #270B26;
    --panel-border: rgba(240, 201, 135, 0.22);
    --panel-border-hover: #F0C987;
    --accent-gold: #F0C987;
    --accent-gold-soft: rgba(240, 201, 135, 0.12);
    --accent-gold-deep: #DAA112;
    --accent-red: #FF7B7B;
    --text-main: #FFFBF5;
    --text-muted: #C7B2C6;
    --hover-bg: #451744;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Fredoka', cursive, sans-serif !important;
}

body {
    background: radial-gradient(circle at top center, #240923 0%, #140514 80%);
    color: var(--text-main);
    font-family: 'Fredoka', sans-serif;
    min-height: 100vh;
}

input, button, select, textarea {
    font-family: 'Fredoka', cursive, sans-serif !important;
}

.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem 2.5rem;
    border-bottom: 1px solid var(--panel-border);
    background: rgba(24, 6, 24, 0.85);
    backdrop-filter: blur(14px);
}

.header-title h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-gold);
    text-shadow: 0 0 16px rgba(240, 201, 135, 0.35);
}

.header-title p {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 0.2rem;
}

.badge {
    padding: 0.45rem 1.1rem;
    background: var(--accent-gold-soft);
    border: 1px solid var(--panel-border);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--accent-gold);
    letter-spacing: 0.05em;
}


.dashboard {
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 2rem;
    padding: 2rem 2.5rem;
    max-width: 1600px;
    margin: 0 auto;
}

.sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.card {
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.6);
}

.card-header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.card-title {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--accent-gold);
}

.btn-sm {
    padding: 0.4rem 0.85rem;
    background: var(--accent-gold-soft);
    border: 1px solid var(--panel-border);
    border-radius: 6px;
    color: var(--accent-gold);
    font-size: 0.78rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-sm:hover {
    background: var(--accent-gold);
    color: #140514;
}


.course-list {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    max-height: 280px;
    overflow-y: auto;
    padding-right: 0.4rem;
}

.course-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.85rem 1.1rem;
    background: var(--card-surface);
    border: 1px solid var(--panel-border);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.course-item:hover {
    border-color: var(--accent-gold);
    background: var(--hover-bg);
}

.course-item.selected {
    background: rgba(240, 201, 135, 0.12);
    border-color: var(--accent-gold);
}

.course-item .code {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text-main);
}

.course-item .name {
    font-size: 0.78rem;
    color: var(--text-muted);
}

.course-actions {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.btn-delete-course {
    color: var(--text-muted);
    font-size: 0.85rem;
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    transition: all 0.2s;
}

.btn-delete-course:hover {
    color: var(--accent-red);
    background: rgba(255, 123, 123, 0.15);
}

.checkbox-custom {
    width: 20px;
    height: 20px;
    border-radius: 5px;
    border: 2px solid var(--panel-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 700;
    transition: all 0.2s ease;
}

.course-item.selected .checkbox-custom {
    background: var(--accent-gold);
    border-color: var(--accent-gold);
    color: #140514;
}


.pref-list {
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
}

.pref-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.88rem;
    color: var(--text-main);
}

.toggle-switch {
    position: relative;
    width: 44px;
    height: 24px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background-color: var(--card-surface);
    border: 1px solid var(--panel-border);
    transition: .3s;
    border-radius: 24px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 3px;
    bottom: 3px;
    background-color: var(--text-muted);
    transition: .3s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--accent-gold);
    border-color: var(--accent-gold);
}

input:checked + .slider:before {
    transform: translateX(20px);
    background-color: #140514;
}

.btn-resolve {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, #F0C987, #D9A85B);
    border: none;
    border-radius: 12px;
    color: #140514;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 4px 25px rgba(240, 201, 135, 0.3);
}

.btn-resolve:hover {
    box-shadow: 0 0 35px rgba(240, 201, 135, 0.55);
    transform: translateY(-2px);
    background: linear-gradient(135deg, #FFE0A3, #F0C987);
}


.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(20, 5, 20, 0.85);
    backdrop-filter: blur(10px);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-card {
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    border-radius: 20px;
    width: 100%;
    max-width: 520px;
    padding: 2rem;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}

.modal-header h3 {
    font-size: 1.2rem;
    color: var(--accent-gold);
}

.btn-close-modal {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.4rem;
    cursor: pointer;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    margin-bottom: 1rem;
}

.form-group label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
}

.form-input {
    padding: 0.75rem 1rem;
    background: var(--card-surface);
    border: 1px solid var(--panel-border);
    border-radius: 8px;
    color: var(--text-main);
    font-family: 'Fredoka', cursive, sans-serif !important;
    font-size: 0.9rem;
    outline: none;
}

.form-input:focus {
    border-color: var(--accent-gold);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.days-picker {
    display: flex;
    gap: 0.4rem;
    flex-wrap: wrap;
}

.day-btn {
    padding: 0.4rem 0.7rem;
    background: var(--card-surface);
    border: 1px solid var(--panel-border);
    border-radius: 6px;
    font-size: 0.78rem;
    font-weight: 600;
    cursor: pointer;
    color: var(--text-muted);
}

.day-btn.selected {
    background: var(--accent-gold);
    color: #140514;
    border-color: var(--accent-gold);
}

.btn-submit-modal {
    width: 100%;
    padding: 0.9rem;
    background: linear-gradient(135deg, #F0C987, #D9A85B);
    border: none;
    border-radius: 10px;
    color: #140514;
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    margin-top: 1rem;
}


.main-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.results-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.results-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--accent-gold);
}

.pagination-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.btn-nav {
    padding: 0.5rem 1rem;
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    border-radius: 8px;
    color: var(--text-main);
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all 0.2s ease;
}

.btn-nav:hover:not(:disabled) {
    border-color: var(--accent-gold);
    background: var(--accent-gold);
    color: #140514;
}

.btn-nav:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}


.timetable-wrapper {
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    border-radius: 16px;
    overflow: hidden;
    padding: 1.5rem;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.6);
}

.timetable-grid {
    display: grid;
    grid-template-columns: 85px repeat(7, 1fr);
    gap: 1px;
    background: var(--panel-border);
    border-radius: 10px;
    overflow: hidden;
}

.grid-header {
    background: #1C071C;
    padding: 0.85rem 0.5rem;
    text-align: center;
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--accent-gold);
}

.grid-time-slot {
    background: #1C071C;
    padding: 0.8rem 0.4rem;
    text-align: center;
    font-size: 0.75rem;
    font-family: 'Fredoka', sans-serif;
    color: var(--text-muted);
}

.grid-cell {
    background: var(--card-surface);
    min-height: 72px;
    padding: 0.4rem;
    position: relative;
}

.class-block {
    height: 100%;
    border-radius: 8px;
    padding: 0.55rem;
    font-size: 0.75rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.5);
    transition: transform 0.2s ease;
}

.class-block:hover {
    transform: scale(1.04);
    z-index: 10;
}

.class-block .c-code {
    font-weight: 700;
}

.class-block .c-info {
    font-size: 0.68rem;
    opacity: 0.9;
    margin-top: 0.25rem;
}


.bg-c1 { 
    background: linear-gradient(135deg, #3B153A 0%, #581C56 100%); 
    color: #F0C987; 
    border: 1px solid rgba(240, 201, 135, 0.4); 
}

.bg-c2 { 
    background: linear-gradient(135deg, #F0C987 0%, #D4A559 100%); 
    color: #1A0619; 
    font-weight: 700;
    border: 1px solid rgba(240, 201, 135, 0.6); 
}

.bg-c3 { 
    background: linear-gradient(135deg, #260A25 0%, #421340 100%); 
    color: #FFE5B5; 
    border: 1px solid rgba(240, 201, 135, 0.35); 
}

.bg-c4 { 
    background: linear-gradient(135deg, #F7E7CE 0%, #DEC1A0 100%); 
    color: #3B153A; 
    font-weight: 700;
    border: 1px solid rgba(59, 21, 58, 0.5); 
}

.bg-c5 { 
    background: linear-gradient(135deg, #521D50 0%, #2D0B2C 100%); 
    color: #F0C987; 
    border: 1px solid rgba(240, 201, 135, 0.4); 
}

.bg-c6 { 
    background: linear-gradient(135deg, #8C6527 0%, #543B12 100%); 
    color: #FFFBF5; 
    border: 1px solid rgba(240, 201, 135, 0.4); 
}

.empty-state {
    text-align: center;
    padding: 4rem;
    color: var(--text-muted);
}

.empty-state .icon {
    font-size: 3.5rem;
    margin-bottom: 1rem;
}


.footer {
    margin-top: 4rem;
    background: rgba(20, 5, 20, 0.95);
    border-top: 1px solid var(--panel-border);
    padding: 2.5rem 2.5rem 1.5rem 2.5rem;
    color: var(--text-muted);
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
    padding-bottom: 1.5rem;
}

.footer-links {
    display: flex;
    gap: 1.8rem;
    align-items: center;
}

.footer-link-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-main);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.footer-icon {
    width: 18px;
    height: 18px;
    stroke: var(--accent-gold); 
    transition: transform 0.2s ease, stroke 0.2s ease;
}

.footer-link-item:hover {
    color: var(--accent-gold);
}

.footer-link-item:hover .footer-icon {
    transform: translateY(-2px); 
}

.footer-bottom {
    text-align: center;
    padding-top: 1.2rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.footer-bottom strong {
    color: var(--accent-gold);
}


@media (max-width: 768px) {
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 1024px) {
    .dashboard {
        grid-template-columns: 1fr;
    }
}