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

:root {
    --selective-primary: #2c5aa0;
    --selective-secondary: #4a90e2;
    --selective-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    
    --oc-primary: #0d6e52;
    --oc-secondary: #20a57a;
    --oc-gradient: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    
    --scholarship-primary: #c77700;
    --scholarship-secondary: #f5a623;
    --scholarship-gradient: linear-gradient(135deg, #f5a623 0%, #ff8008 100%);
    
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --light-bg: #f8f9fa;
    --dark-text: #333;
    --border-color: #dee2e6;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--selective-gradient);
    min-height: 100vh;
    padding: 20px;
    color: var(--dark-text);
    transition: background 0.5s ease;
}

body.oc-active {
    background: var(--oc-gradient);
}

body.scholarship-active {
    background: var(--scholarship-gradient);
}

.container {
    max-width: 900px;
    margin: 0 auto;
}

header {
    text-align: center;
    color: white;
    margin-bottom: 30px;
}

header h1 {
    font-size: 2.2rem;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.subtitle {
    font-size: 1.1rem;
    opacity: 0.95;
}

/* Tab Navigation */
.tab-navigation {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 25px;
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 30px;
    color: white;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.tab-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.tab-btn.active {
    background: white;
    color: var(--selective-primary);
    border-color: white;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

body.oc-active .tab-btn.active {
    color: var(--oc-primary);
}

body.scholarship-active .tab-btn.active {
    color: var(--scholarship-primary);
}

.tab-icon {
    font-size: 1.2rem;
}

/* Calculator Panel */
.calculator-panel {
    display: none;
    animation: fadeIn 0.4s ease;
}

.calculator-panel.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Calculator Card */
.calculator-card {
    background: white;
    border-radius: 16px;
    padding: 35px;
    box-shadow: var(--shadow);
}

.calculator-card.hidden {
    display: none;
}

.card-header {
    text-align: center;
    margin-bottom: 30px;
}

.card-header h2 {
    color: var(--selective-primary);
    font-size: 1.6rem;
    margin-bottom: 15px;
}

.oc-card .card-header h2 {
    color: var(--oc-primary);
}

.scholarship-card .card-header h2 {
    color: var(--scholarship-primary);
}

.card-header p {
    color: #666;
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Form Grid */
.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 20px;
}

@media (max-width: 600px) {
    .form-grid {
        grid-template-columns: 1fr;
    }
}

.form-group {
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--dark-text);
    font-size: 0.95rem;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--selective-primary);
    box-shadow: 0 0 0 3px rgba(44, 90, 160, 0.1);
}

.oc-card .form-group input:focus,
.oc-card .form-group select:focus {
    border-color: var(--oc-primary);
    box-shadow: 0 0 0 3px rgba(13, 110, 82, 0.1);
}

.scholarship-card .form-group input:focus,
.scholarship-card .form-group select:focus {
    border-color: var(--scholarship-primary);
    box-shadow: 0 0 0 3px rgba(199, 119, 0, 0.1);
}

.input-hint {
    position: absolute;
    right: 12px;
    top: 42px;
    font-size: 0.8rem;
    color: #999;
}

.gender-group {
    max-width: 200px;
    margin: 0 auto 25px;
}

/* Calculate Button */
.calculate-btn {
    width: 100%;
    padding: 16px;
    background: var(--selective-gradient);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.calculate-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.calculate-btn.oc-btn {
    background: var(--oc-gradient);
}

.calculate-btn.oc-btn:hover {
    box-shadow: 0 6px 20px rgba(17, 153, 142, 0.4);
}

.calculate-btn.scholarship-btn {
    background: var(--scholarship-gradient);
}

.calculate-btn.scholarship-btn:hover {
    box-shadow: 0 6px 20px rgba(245, 166, 35, 0.4);
}

.calculate-btn:active {
    transform: translateY(0);
}

.calculate-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.calculate-btn .btn-loading {
    display: none;
}

.calculate-btn.loading .btn-text {
    display: none;
}

.calculate-btn.loading .btn-loading {
    display: inline;
}

/* Disclaimer */
.disclaimer {
    margin-top: 25px;
    padding: 15px 20px;
    background-color: #f8f9fa;
    border-left: 4px solid var(--warning-color);
    border-radius: 0 8px 8px 0;
}

.disclaimer p {
    font-size: 0.9rem;
    color: #666;
}

/* Results Section */
.results-section {
    animation: fadeIn 0.4s ease;
}

.results-section.hidden {
    display: none;
}

.results-section.active {
    display: block;
}

/* Results Header */
.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    flex-wrap: wrap;
    gap: 10px;
}

.results-header h2 {
    margin: 0;
    color: var(--dark-text);
    font-size: 1.2rem;
}

/* Score Badge */
.score-badge {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 1rem;
}

.score-badge.selective-badge {
    background: var(--selective-gradient);
    color: white;
}

.score-badge.oc-badge {
    background: var(--oc-gradient);
    color: white;
}

.score-badge .score-value {
    font-size: 1.2rem;
    font-weight: 700;
}

.back-btn {
    padding: 8px 16px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    color: #666;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.back-btn:hover {
    background: var(--light-bg);
    color: var(--dark-text);
}

/* Score Card */
.score-card {
    background: var(--selective-gradient);
    color: white;
    padding: 40px;
    border-radius: 16px;
    text-align: center;
    box-shadow: var(--shadow);
    margin-bottom: 25px;
}

.score-card.oc-score {
    background: var(--oc-gradient);
}

.score-card h2 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    opacity: 0.95;
    font-weight: 500;
}

.score-display {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.score-value {
    font-size: 4.5rem;
    font-weight: bold;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
    line-height: 1;
}

.score-label {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-top: 8px;
}

/* Schools Section */
.schools-section {
    background: white;
    border-radius: 16px;
    padding: 30px;
    box-shadow: var(--shadow);
}

.schools-section h2 {
    margin-bottom: 20px;
    color: var(--dark-text);
    font-size: 1.3rem;
}

/* Filter Buttons */
.filter-row {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 20px;
    align-items: center;
}

.filter-buttons,
.gender-buttons {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.filter-btn,
.gender-btn {
    padding: 8px 16px;
    border: 2px solid var(--border-color);
    background: white;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.85rem;
    font-weight: 500;
}

.filter-btn:hover,
.gender-btn:hover {
    border-color: var(--selective-primary);
    background-color: rgba(44, 90, 160, 0.05);
}

.filter-btn.active,
.gender-btn.active {
    background: var(--selective-primary);
    color: white;
    border-color: var(--selective-primary);
}

[data-test="oc"] .filter-btn:hover,
[data-test="oc"] .gender-btn:hover {
    border-color: var(--oc-primary);
    background-color: rgba(13, 110, 82, 0.05);
}

[data-test="oc"] .filter-btn.active,
[data-test="oc"] .gender-btn.active {
    background: var(--oc-primary);
    border-color: var(--oc-primary);
}

/* Schools List */
.schools-list {
    display: grid;
    gap: 8px;
}

.school-card {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px 15px;
    transition: all 0.2s ease;
}

.school-card:hover {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.school-card.status-comfortable {
    border-left: 5px solid var(--success-color);
}

.school-card.status-possible {
    border-left: 5px solid var(--warning-color);
}

.school-card.status-difficult {
    border-left: 5px solid var(--danger-color);
}

.school-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
    gap: 10px;
}

.school-name {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--dark-text);
    flex: 1;
}

.school-cutoff {
    font-size: 1.6rem;
    font-weight: bold;
    color: var(--selective-primary);
    white-space: nowrap;
}

body.oc-active .school-cutoff {
    color: var(--oc-primary);
}

.school-info {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 0.8rem;
    color: #888;
}

.school-info span {
    display: flex;
    align-items: center;
    gap: 5px;
}

.status-badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    white-space: nowrap;
}

.status-badge.comfortable {
    background-color: #d4edda;
    color: #155724;
}

.status-badge.possible {
    background-color: #fff3cd;
    color: #856404;
}

.status-badge.difficult {
    background-color: #f8d7da;
    color: #721c24;
}

.school-links {
    margin-top: 12px;
}

.school-link {
    color: var(--selective-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.3s ease;
}

.school-link:hover {
    color: var(--selective-primary);
    text-decoration: underline;
}

body.oc-active .school-link {
    color: var(--oc-secondary);
}

body.oc-active .school-link:hover {
    color: var(--oc-primary);
}

/* Footer */
footer {
    text-align: center;
    color: white;
    margin-top: 40px;
    opacity: 0.9;
    font-size: 0.9rem;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: #666;
}

.empty-state p {
    font-size: 1rem;
}

/* Scholarship Report */
.scholarship-card .section-header {
    margin: 20px 0 10px;
}

.section-header h3 {
    font-size: 1.05rem;
    color: var(--dark-text);
    margin-bottom: 4px;
}

.section-desc {
    font-size: 0.9rem;
    color: #666;
}

.score-input-group {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 10px;
}

.score-input-group input {
    text-align: right;
}

.score-divider {
    text-align: center;
    color: #999;
}

.scholarship-report {
    background: white;
    border-radius: 16px;
    padding: 24px;
    box-shadow: var(--shadow);
}

.report-content {
    display: flex;
    flex-direction: column;
    gap: 26px;
}

.report-section {
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px 18px;
}

.report-section-header h3 {
    margin-bottom: 6px;
    color: var(--dark-text);
}

.report-section-header p {
    margin: 0;
    color: #666;
    font-size: 0.9rem;
}

.subject-bars {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 14px;
}

.subject-bar {
    display: grid;
    grid-template-columns: 190px 1fr 70px;
    align-items: center;
    gap: 12px;
}

.subject-name {
    font-weight: 600;
    color: var(--dark-text);
}

.bar-track {
    height: 14px;
    background: #eef1f6;
    border-radius: 8px;
    position: relative;
    overflow: hidden;
}

.bar-fill {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    background: var(--scholarship-gradient);
    border-radius: 8px;
}

.bar-markers {
    position: absolute;
    inset: 0;
    display: grid;
    grid-template-columns: repeat(9, 1fr);
}

.bar-marker {
    width: 2px;
    background: rgba(0, 0, 0, 0.12);
    margin-left: -1px;
}

.bar-marker:first-child {
    display: none;
}

.band-badge {
    display: inline-block;
    min-width: 52px;
    padding: 6px 10px;
    text-align: center;
    border-radius: 14px;
    background: #fff4e0;
    color: #b26500;
    font-weight: 700;
    border: 1px solid #ffd9a1;
}

.band-percent {
    font-weight: 600;
    color: #8a4c00;
    font-size: 0.85rem;
    margin-top: 2px;
}

.band-key {
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px 18px;
    background: #fdfbf7;
}

.band-key h4 {
    margin: 0 0 10px;
    color: var(--dark-text);
}

.band-scale {
    display: grid;
    grid-template-columns: 190px 1fr 70px;
    gap: 12px;
    font-size: 0.9rem;
    color: #555;
}

.band-numbers,
.band-percentages,
.band-labels {
    grid-column: 2;
    display: grid;
    grid-template-columns: repeat(9, 1fr);
    gap: 0; /* Changed from 6px to match bar markers logic more closely */
    text-align: center;
}

/* Ensure centering consistency */
.band-numbers span, 
.band-percentages span {
    display: block; /* Ensure full width for centering */
}

.band-percentages {
    margin-top: 4px; /* Space between rows */
}

.band-labels {
    grid-template-columns: 3fr 3fr 3fr;
    margin-top: 8px;
    font-weight: 600;
    color: #666;
}

.band-label.developing { text-align: left; }
.band-label.satisfactory { text-align: center; }
.band-label.highly-developed { text-align: right; }

.band-note {
    margin-top: 10px;
    color: #666;
    font-size: 0.9rem;
    line-height: 1.4;
}

@media (max-width: 700px) {
    .subject-bar {
        grid-template-columns: 1fr;
        gap: 6px;
    }
    .band-scale {
        grid-template-columns: 1fr;
        gap: 6px;
    }
    .band-numbers,
    .band-percentages,
    .band-labels {
        grid-column: 1;
    }
    .subject-name {
        font-size: 0.95rem;
    }
    .band-labels {
        grid-template-columns: 1fr;
        gap: 4px;
        text-align: left;
    }
}

/* Responsive */
@media (max-width: 768px) {
    header h1 {
        font-size: 1.8rem;
    }
    
    .tab-btn {
        padding: 12px 20px;
        font-size: 0.9rem;
    }
    
    .calculator-card {
        padding: 25px 20px;
    }
    
    .score-value {
        font-size: 3.5rem;
    }
    
    .school-header {
        flex-direction: column;
        gap: 8px;
    }
    
    .school-cutoff {
        font-size: 1.4rem;
    }
}

@media (max-width: 480px) {
    .tab-navigation {
        flex-direction: column;
    }
    
    .tab-btn {
        width: 100%;
        justify-content: center;
    }
    
    .filter-row {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filter-buttons,
    .gender-buttons {
        justify-content: center;
    }
    
    .filter-btn,
    .gender-btn {
        flex: 1;
        text-align: center;
        min-width: 70px;
    }
    
    .results-header {
        flex-direction: column;
        align-items: flex-start;
    }
}