/* ExtraExam — Shared UI components (Phase 5) */

/* ── Buttons ── */
.btn-gradient {
    background: var(--gradient-primary);
    color: #fff;
    border: none;
    border-radius: var(--radius-pill);
    padding: 0.65rem 1.75rem;
    font-weight: var(--font-weight-semibold);
    font-size: 0.95rem;
    transition: transform var(--transition), box-shadow var(--transition);
    box-shadow: 0 4px 14px rgba(79, 70, 229, 0.35);
}

.btn-gradient:hover,
.btn-gradient:focus {
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(79, 70, 229, 0.45);
}

.btn-accent {
    background: var(--gradient-accent);
    color: #fff;
    border: none;
    border-radius: var(--radius-pill);
    padding: 0.65rem 1.75rem;
    font-weight: var(--font-weight-semibold);
    transition: transform var(--transition), box-shadow var(--transition);
    box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
}

.btn-accent:hover {
    color: #fff;
    transform: translateY(-2px);
}

.btn-outline-gradient {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
    border-radius: var(--radius-pill);
    padding: 0.6rem 1.65rem;
    font-weight: var(--font-weight-semibold);
    transition: all var(--transition);
}

.btn-outline-gradient:hover {
    background: var(--gradient-primary);
    color: #fff;
    border-color: transparent;
}

/* ── Section headings ── */
.section-heading {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-heading h2 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: var(--font-weight-bold);
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.section-heading p {
    color: var(--text-muted);
    font-size: 1rem;
    max-width: 560px;
    margin: 0 auto;
}

.section-heading .section-label {
    display: inline-block;
    background: var(--tint-board);
    color: var(--primary);
    font-size: 0.8rem;
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 0.35rem 1rem;
    border-radius: var(--radius-pill);
    margin-bottom: 0.75rem;
}

.section-title-pill {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    border-radius: var(--radius-pill);
    font-weight: var(--font-weight-semibold);
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
}

.section-title-pill.board {
    background: var(--tint-board);
    color: var(--primary);
}

.section-title-pill.class {
    background: var(--tint-class);
    color: #92400e;
}

.section-title-pill.subject {
    background: var(--tint-subject);
    color: #065f46;
}

.section-title-pill.chapter {
    background: var(--tint-chapter);
    color: #1e40af;
}

.section-title-pill.package {
    background: #eef2ff;
    color: var(--primary-dark);
}

/* ── Cards ── */
.feature-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 2rem 1.5rem;
    text-align: center;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: transform var(--transition), box-shadow var(--transition);
    height: 100%;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.feature-card .feature-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.75rem;
}

.feature-card .feature-icon.icon-indigo {
    background: var(--tint-board);
    color: var(--primary);
}

.feature-card .feature-icon.icon-orange {
    background: #fff7ed;
    color: var(--accent);
}

.feature-card .feature-icon.icon-teal {
    background: #f0fdfa;
    color: var(--accent-teal);
}

.feature-card .feature-icon.icon-purple {
    background: #faf5ff;
    color: #9333ea;
}

.feature-card h4 {
    font-size: 1.1rem;
    font-weight: var(--font-weight-semibold);
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

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

.hover-card {
    transition: transform var(--transition), box-shadow var(--transition);
    border-radius: var(--radius);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
}

.hover-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.hover-card.active,
.selection-card.active {
    border: 2px solid var(--primary) !important;
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.15);
}

.selection-card {
    border-radius: var(--radius-lg);
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    overflow: hidden;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    cursor: pointer;
}

.selection-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.pricing-card {
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    background: var(--bg-card);
    transition: transform var(--transition), box-shadow var(--transition);
}

.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.post-card {
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    transition: transform var(--transition), box-shadow var(--transition);
    height: 100%;
    background: var(--bg-card);
}

.post-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.post-card .post-card-img {
    height: 200px;
    object-fit: cover;
    width: 100%;
}

.post-card .card-title {
    font-size: 1.05rem;
    font-weight: var(--font-weight-semibold);
    color: var(--primary);
}

/* ── Hero ── */
.hero-gradient {
    background: var(--gradient-hero);
    color: #fff;
    padding: calc(var(--nav-height) + 2rem) 0 4rem;
    position: relative;
    overflow: hidden;
}

.hero-gradient::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 60%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
    pointer-events: none;
}

.hero-gradient .hero-intro-box {
    background: rgba(255, 255, 255, 0.95);
    color: var(--text-body);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
}

.hero-icon-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.hero-icon-item {
    background: rgba(255, 255, 255, 0.12);
    border-radius: var(--radius);
    padding: 1.25rem;
    text-align: center;
    backdrop-filter: blur(4px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    transition: background var(--transition);
}

.hero-icon-item:hover {
    background: rgba(255, 255, 255, 0.2);
}

.hero-icon-item i {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
    display: block;
}

.hero-icon-item span {
    font-size: 0.85rem;
    font-weight: var(--font-weight-medium);
}

/* ── Stats / trust bar ── */
.stats-bar {
    background: var(--bg-card);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    padding: 2rem 0;
}

.stat-pill {
    text-align: center;
    padding: 0.5rem 1rem;
}

.stat-pill .stat-number {
    font-size: clamp(1.75rem, 4vw, 2.25rem);
    font-weight: var(--font-weight-bold);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.stat-pill .stat-label {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: var(--font-weight-medium);
    margin-top: 0.25rem;
}

.stat-pill .stat-icon {
    font-size: 1.5rem;
    color: var(--primary-light);
    margin-bottom: 0.5rem;
}

/* ── Promo banner ── */
.promo-banner {
    background: linear-gradient(135deg, #14532d 0%, #166534 100%);
    position: relative;
    overflow: hidden;
}

.promo-banner .promo-deco {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    font-size: 3rem;
    opacity: 0.2;
    color: #fff;
}

/* ── Public page header ── */
.page-header-banner {
    background: var(--gradient-hero);
    color: #fff;
    padding: calc(var(--nav-height) + 2rem) 0 2.5rem;
    margin-bottom: 0;
    text-align: center;
}

.page-header-banner h1 {
    color: #fff;
    font-weight: var(--font-weight-bold);
    font-size: clamp(1.5rem, 4vw, 2.25rem);
    margin-bottom: 0.5rem;
}

.page-header-banner p {
    color: rgba(255, 255, 255, 0.85);
    margin: 0;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.public-content-area {
    max-width: 900px;
    margin: 0 auto;
    padding: 2.5rem 1.5rem 4rem;
}

.public-prose h2 {
    font-size: 1.25rem;
    font-weight: var(--font-weight-semibold);
    color: var(--text-dark);
    margin-top: 2rem;
    margin-bottom: 0.75rem;
}

.public-prose p,
.public-prose li {
    color: var(--text-body);
    line-height: 1.75;
}

.public-prose .prose-section {
    background: var(--bg-card);
    padding: 1.5rem;
    margin-bottom: 1.25rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.public-prose ul {
    padding-left: 1.25rem;
}

/* ── Navigation (public) ── */
.public-navbar {
    background: rgba(15, 23, 42, 0.92);
    backdrop-filter: blur(12px);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}

.public-navbar.scrolled {
    background: rgba(15, 23, 42, 0.98);
    box-shadow: var(--shadow);
}

.public-navbar .navbar-brand,
.public-navbar .navbar-brand span {
    font-weight: var(--font-weight-semibold);
    color: #fff !important;
}

.public-navbar .nav-link {
    color: rgba(255, 255, 255, 0.9) !important;
    font-weight: var(--font-weight-medium);
    font-size: 0.95rem;
    position: relative;
    transition: color var(--transition-fast);
}

.public-navbar .nav-link:hover {
    color: #fff !important;
}

.public-navbar .btn-outline-gradient {
    color: #fff;
    border-color: rgba(255, 255, 255, 0.75);
}

.public-navbar .btn-outline-gradient:hover {
    color: #fff;
    border-color: transparent;
}

.public-navbar .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition), left var(--transition);
    border-radius: 2px;
}

.public-navbar .nav-link:hover::after {
    width: 80%;
    left: 10%;
}

/* ── Footer ── */
.site-footer {
    background: #1e293b;
    color: #cbd5e1;
    padding: 4rem 0 1.5rem;
}

.site-footer .footer-logo {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: #fff;
    margin-bottom: 1rem;
}

.site-footer .footer-desc {
    color: #94a3b8;
    font-size: 0.9rem;
    line-height: 1.7;
}

.site-footer h5 {
    color: #fff;
    font-weight: var(--font-weight-semibold);
    font-size: 1rem;
    margin-bottom: 1.25rem;
}

.site-footer ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.site-footer ul li {
    margin-bottom: 0.6rem;
}

.site-footer ul a {
    color: #94a3b8;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

.site-footer ul a:hover {
    color: #fff;
}

.site-footer .social-icons a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 50%;
    margin-right: 0.5rem;
    color: #fff;
    transition: all var(--transition);
}

.site-footer .social-icons a:hover {
    background: var(--primary);
    transform: translateY(-3px);
    color: #fff;
}

.site-footer .contact-info li {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.site-footer .footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    text-align: center;
    color: #64748b;
    font-size: 0.85rem;
}

/* ── Board scroller ── */
.boards-scroller {
    -webkit-overflow-scrolling: touch;
}

.boards-scroller .d-flex {
    scrollbar-width: thin;
}

.boards-scroller::-webkit-scrollbar {
    height: 6px;
}

.boards-scroller::-webkit-scrollbar-track {
    background: var(--bg-alt);
    border-radius: 10px;
}

.boards-scroller::-webkit-scrollbar-thumb {
    background: var(--text-light);
    border-radius: 10px;
}

.board-img-container {
    width: 120px;
    height: 120px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto;
}

.board-img-container img {
    max-width: 120px;
    max-height: 120px;
    object-fit: contain;
}

.board-name {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    height: 2.8em;
    line-height: 1.4em;
    font-size: 0.95rem;
}

/* ── AJAX partial cards ── */
.ajax-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1.5rem;
}

.ajax-image-container {
    height: 160px;
    overflow: hidden;
    position: relative;
}

.ajax-image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.selection-card:hover .ajax-image-container img {
    transform: scale(1.05);
}

.card-title-badge {
    font-size: 0.85rem;
    background: var(--gradient-primary);
    color: #fff;
    border-radius: var(--radius-pill);
    padding: 0.4rem 1rem;
    display: inline-block;
    font-weight: var(--font-weight-medium);
}

/* ── Badges ── */
.badge-free {
    background-color: #10b981;
    color: #fff;
    font-size: 0.8rem;
    padding: 0.35rem 0.75rem;
    border-radius: var(--radius-pill);
    font-weight: var(--font-weight-semibold);
}

.badge-buy {
    background-color: var(--accent);
    color: #1f2937;
    font-size: 0.8rem;
    padding: 0.35rem 0.75rem;
    border-radius: var(--radius-pill);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
}

.price-btn {
    display: inline-block;
    background: var(--gradient-primary);
    color: #fff;
    padding: 0.6rem 1.25rem;
    border-radius: var(--radius-pill);
    font-weight: var(--font-weight-semibold);
    font-size: 0.95rem;
    text-decoration: none;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.25);
    transition: transform var(--transition), box-shadow var(--transition);
}

.price-btn:hover {
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(79, 70, 229, 0.35);
}

/* ── Empty / error states (public variant) ── */
.public-empty-state {
    padding: 3rem 1.5rem;
    text-align: center;
    color: var(--text-muted);
    background: var(--bg-alt);
    border-radius: var(--radius);
    border: 1px dashed var(--border-color);
}

.public-empty-state i {
    font-size: 2.5rem;
    color: var(--text-light);
    margin-bottom: 0.75rem;
}

.public-empty-state h4,
.public-empty-state h5 {
    color: var(--text-dark);
    font-weight: var(--font-weight-semibold);
    margin-bottom: 0.5rem;
}

.public-error-state {
    padding: 1.25rem;
    text-align: center;
    color: #b91c1c;
    background: #fef2f2;
    border-radius: var(--radius);
    border: 1px solid #fecaca;
}

/* ── Auth modal polish ── */
.auth-login-body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #eef2ff 0%, #f8fafc 50%, #e0f2fe 100%);
    padding: 1.5rem;
}

.auth-modal .modal-content {
    border: none;
    border-radius: var(--radius, 16px);
    box-shadow: 0 20px 60px rgba(79, 70, 229, 0.15);
    overflow: hidden;
}

.auth-modal .modal-header {
    background: var(--gradient-primary, linear-gradient(135deg, #4f46e5, #0ea5e9));
    color: #fff;
    border: none;
}

.auth-modal .modal-header .btn-close {
    filter: invert(1);
}

.auth-tabs .nav-link {
    color: var(--text-muted);
    font-weight: var(--font-weight-medium);
    border: none;
    transition: color var(--transition-fast);
}

.auth-tabs .nav-link.active {
    color: var(--primary);
    font-weight: var(--font-weight-semibold);
    border-bottom: 2px solid var(--primary);
}

.auth-modal .form-floating label {
    color: var(--primary);
}

.auth-switch {
    color: var(--primary);
    cursor: pointer;
    text-decoration: underline;
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-weight-bold);
    margin-right: 0.5rem;
}

/* ── Student portal header ── */
.student-page-header {
    background: var(--gradient-primary);
    color: #fff;
    border-radius: var(--radius);
    padding: 1.5rem 2rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow);
}

.student-page-header .breadcrumb {
    margin-bottom: 0.5rem;
    --bs-breadcrumb-divider: '›';
}

.student-page-header .breadcrumb-item a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
}

.student-page-header .breadcrumb-item.active {
    color: rgba(255, 255, 255, 0.95);
}

.student-page-header-inner {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.student-page-icon {
    width: 52px;
    height: 52px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.student-page-title {
    font-size: 1.35rem;
    font-weight: var(--font-weight-bold);
    color: #fff;
    margin: 0;
}

.student-page-subtitle {
    color: rgba(255, 255, 255, 0.85) !important;
    font-size: 0.9rem;
    margin-top: 0.25rem;
}

/* ── Icon utility ── */
.icon-primary {
    color: var(--primary, #4f46e5);
}

/* ── Student content card wrapper ── */
.student-content-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

/* ── Loading spinner area ── */
.ajax-loading {
    text-align: center;
    padding: 2.5rem 0;
}

/* ── Chapter table (public) ── */
.chapter-table th {
    background: var(--tint-subject);
    color: #065f46;
    font-weight: var(--font-weight-semibold);
    text-align: center;
}

.chapter-table td {
    vertical-align: middle;
    font-size: 0.95rem;
}

/* ── Animate on scroll ── */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

/* ── Responsive ── */
@media (max-width: 768px) {
    .hero-gradient {
        padding-top: calc(var(--nav-height) + 1.5rem);
    }

    .student-page-header {
        padding: 1.25rem;
    }

    .student-page-header-inner {
        flex-direction: column;
        text-align: center;
    }

    .ajax-card-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 1rem;
    }
}

/* ── Quiz standalone page (_SubjecListForQuize) ── */
[ng-cloak] {
    display: none !important;
}

.quiz-page-container {
    max-width: 1000px;
    margin: 30px auto;
    padding: 20px;
    background: var(--bg-alt);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: row-reverse;
    gap: 1.25rem;
}

.quiz-right-panel {
    width: 160px;
    flex-shrink: 0;
}

.quiz-question-nav {
    display: grid;
    grid-template-columns: repeat(5, 30px);
    gap: 10px;
}

.quiz-question-circle {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #e2e8f0;
    cursor: pointer;
    font-weight: var(--font-weight-bold);
    transition: background var(--transition-fast);
    font-size: 14px;
}

.quiz-question-circle.answered {
    background-color: #10b981;
    color: #fff;
}

.quiz-question-circle.active {
    border: 2px solid var(--primary);
}

.quiz-main-panel {
    flex-grow: 1;
}

.quiz-question-card {
    background: var(--bg-card);
    border-left: 4px solid var(--primary);
    padding: 1.25rem;
    border-radius: var(--radius-sm);
    display: none;
}

.quiz-question-card.active {
    display: block;
}

.quiz-option-label {
    display: block;
    margin-bottom: 0.6rem;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    background-color: var(--bg-alt);
    transition: background var(--transition-fast), border-color var(--transition-fast);
    border: 1px solid transparent;
}

.quiz-option-label:hover {
    background-color: #e2e8f0;
}

.quiz-option-label.selected {
    background-color: #d1fae5 !important;
    border-color: #10b981;
    color: #065f46;
}

.quiz-nav-btns {
    display: flex;
    justify-content: space-between;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.quiz-timer {
    font-weight: var(--font-weight-bold);
    color: #dc2626;
}

.quiz-radio-input {
    display: none;
}

@media (max-width: 768px) {
    .quiz-page-container {
        flex-direction: column;
    }

    .quiz-right-panel {
        width: 100%;
    }
}