/* Modern Light Theme Styles */

/* Navigation Header */
.app-header {
    background-color: var(--color-bg-surface);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0.75rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.app-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-text-main);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.app-nav {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-link {
    color: var(--color-text-muted);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-text-main);
    background-color: var(--color-bg-subtle);
}

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

/* Master Container Layout */
.main-content {
    max-width: 1280px;
    margin: 2rem auto;
    padding: 0 1.5rem;
    min-height: calc(100vh - 180px);
}

/* Cards & Layout panels */
.card {
    background-color: var(--color-bg-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 2rem;
    margin-bottom: 1.5rem;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.card-interactive:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-border-hover);
}

.card-title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--color-text-main);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Form inputs & elements */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    color: var(--color-text-main);
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 0.95rem;
    background-color: var(--color-bg-surface);
    transition: var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

/* Premium Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--transition-fast);
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: var(--color-text-on-primary);
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    filter: brightness(1.05);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--color-bg-subtle);
    border-color: var(--color-border);
    color: var(--color-text-main);
}

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

.btn-danger {
    background-color: var(--color-danger);
    color: #ffffff;
}

.btn-danger:hover {
    background-color: #dc2626;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
}

.btn-block {
    display: flex;
    width: 100%;
}

/* Auth Pages / Centered Layouts */
.auth-wrapper {
    max-width: 480px;
    margin: 4rem auto;
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-header h1 {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 2rem;
    color: var(--color-text-main);
}

.auth-header p {
    color: var(--color-text-muted);
    margin-top: 0.5rem;
}

/* Alert Notification box */
.alert {
    padding: 1rem;
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.95rem;
    border: 1px solid transparent;
}

.alert-danger {
    background-color: var(--color-danger-light);
    border-color: rgba(239, 68, 68, 0.2);
    color: var(--color-danger);
}

.alert-success {
    background-color: var(--color-success-light);
    border-color: rgba(16, 185, 129, 0.2);
    color: var(--color-success);
}

/* General Instructions lists */
.instructions-list {
    margin-left: 1.5rem;
    margin-bottom: 2rem;
}

.instructions-list li {
    margin-bottom: 0.75rem;
    line-height: 1.7;
}

/* Test Interface specific panels */
.test-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 2rem;
    margin-top: 1.5rem;
}

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

.test-header-panel {
    background-color: var(--color-bg-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-sm);
    margin-bottom: 1.5rem;
}

.timer-box {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text-main);
    background-color: var(--color-bg-subtle);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-variant-numeric: tabular-nums;
}

.timer-warning {
    color: var(--color-danger) !important;
    background-color: var(--color-danger-light);
    animation: pulse 1s infinite alternate;
}

@keyframes pulse {
    0% { opacity: 0.8; }
    100% { opacity: 1; }
}

.question-area {
    background-color: var(--color-bg-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 2.5rem;
    min-height: 400px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.section-indicator {
    display: inline-block;
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}

.question-text {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text-main);
    margin-bottom: 2rem;
    white-space: pre-wrap;
}

.options-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.option-card {
    display: flex;
    align-items: center;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1rem 1.25rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

.option-card:hover {
    border-color: var(--color-primary);
    background-color: var(--color-bg-base);
}

.option-card.selected {
    border-color: var(--color-primary);
    background-color: var(--color-primary-light);
    box-shadow: 0 0 0 1px var(--color-primary);
}

.option-letter {
    width: 2rem;
    height: 2rem;
    border-radius: var(--radius-full);
    border: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
    margin-right: 1rem;
    background-color: var(--color-bg-surface);
    transition: var(--transition-fast);
}

.option-card.selected .option-letter {
    background-color: var(--color-primary);
    color: var(--color-text-on-primary);
    border-color: var(--color-primary);
}

.option-text {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text-main);
}

.action-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border);
}

.action-bar-left, .action-bar-right {
    display: flex;
    gap: 0.75rem;
}

/* Sidebar Navigator Grid */
.sidebar-panel {
    background-color: var(--color-bg-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    align-self: start;
}

.navigator-header {
    font-family: var(--font-heading);
    font-weight: 700;
    margin-bottom: 1.25rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.questions-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 0.5rem;
    max-height: 320px;
    overflow-y: auto;
    padding-right: 0.25rem;
}

.btn-nav-num {
    width: 100%;
    aspect-ratio: 1;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: var(--color-bg-subtle);
    color: var(--color-text-muted);
    font-weight: 700;
    font-size: 0.9rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.btn-nav-num:hover {
    border-color: var(--color-primary);
    background-color: var(--color-primary-light);
    color: var(--color-primary);
}

.btn-nav-num.active {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.btn-nav-num.answered {
    background-color: var(--color-success);
    color: #ffffff;
    border-color: var(--color-success);
}

.btn-nav-num.flagged {
    background-color: var(--color-warning);
    color: #ffffff;
    border-color: var(--color-warning);
}

.btn-nav-num.flagged.answered {
    background-color: var(--color-warning);
    box-shadow: inset 0 0 0 3px var(--color-success);
}

/* Legend helpers */
.navigator-legend {
    margin-top: 1.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    font-size: 0.85rem;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-text-muted);
}

.legend-color {
    width: 1rem;
    height: 1rem;
    border-radius: var(--radius-sm);
    display: inline-block;
}

/* Results Breakdown UI */
.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2.5rem;
}

.results-summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.score-card {
    background-color: var(--color-bg-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.score-num {
    font-family: var(--font-heading);
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1.2;
    margin-bottom: 0.25rem;
}

.score-num.score-success {
    color: var(--color-success);
}

.score-num.score-danger {
    color: var(--color-danger);
}

.score-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
}

/* Progress bars */
.section-result-row {
    background-color: var(--color-bg-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem 2rem;
    margin-bottom: 1.25rem;
    box-shadow: var(--shadow-sm);
}

.section-result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.section-result-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.1rem;
}

.section-result-pct {
    font-weight: 700;
    color: var(--color-primary);
}

.progress-container {
    background-color: var(--color-bg-subtle);
    height: 10px;
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: 0.75rem;
}

.progress-bar {
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    height: 100%;
    border-radius: var(--radius-full);
    transition: width 0.8s ease-out;
}

.section-details-stats {
    display: flex;
    gap: 1.5rem;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.stat-dot {
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    margin-right: 0.25rem;
}

/* Admin grid dashboard */
.admin-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

@media (max-width: 992px) {
    .admin-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 576px) {
    .admin-stats-grid {
        grid-template-columns: 1fr;
    }
}

/* Clean Admin Tables */
.table-responsive {
    overflow-x: auto;
    width: 100%;
}

.table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1.5rem;
    text-align: left;
}

.table th, .table td {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--color-border);
}

.table th {
    background-color: var(--color-bg-subtle);
    font-weight: 700;
    font-size: 0.85rem;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.table tr:last-child td {
    border-bottom: none;
}

.table tr:hover td {
    background-color: #fcfcfc;
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

.badge-success {
    background-color: var(--color-success-light);
    color: var(--color-success);
}

.badge-warning {
    background-color: var(--color-warning-light);
    color: var(--color-warning);
}

.badge-info {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
}

/* Footer structure */
.app-footer {
    background-color: var(--color-bg-surface);
    border-top: 1px solid var(--color-border);
    padding: 2rem 0;
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.85rem;
}
.footer-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}