/* ==========================================================================
   GUIDED SLIDE DECK (MINIMAL SCROLL STUDY DECK) - SJMaths Theme
   ========================================================================== */
:root {
    --slide-accent: var(--primary, #059669);
    --slide-accent-dark: #047857;
    --slide-accent-light: #ecfdf5;
    --slide-border: #e2e8f0;
    --slide-bg: #ffffff;
    --slide-text: #1e293b;
    --slide-muted: #64748b;
}

body.dark-mode {
    --slide-border: #334155;
    --slide-bg: #0f172a;
    --slide-text: #f8fafc;
    --slide-muted: #94a3b8;
    --slide-accent-light: rgba(16, 185, 129, 0.15);
}

/* Mode Switcher Toggle Pill */
.notes-view-mode-bar {
    max-width: var(--container-width, 1200px);
    margin: 0.75rem auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
}

/* In Slide Mode, condense giant Hero Banners & hide legacy TOC pills for minimal vertical scroll */
body.mode-slide .hero,
body.mode-slide .sj-hero-v6,
body.mode-slide .sj-hero-v7,
body.mode-slide .sj-hero-v8,
body.mode-slide .chapter-hero-banner {
    min-height: auto !important;
    padding: 20px 20px 14px 20px !important;
    margin-bottom: 8px !important;
}

body.mode-slide .hero:before {
    display: none !important;
}

body.mode-slide .hero h1,
body.mode-slide .hero h2,
body.mode-slide .sj-hero-v6 h1,
body.mode-slide .sj-hero-v7 h1,
body.mode-slide .sj-hero-v8 h1,
body.mode-slide .chapter-hero-banner h1 {
    font-size: 1.6rem !important;
    margin-bottom: 4px !important;
    line-height: 1.2 !important;
}

body.mode-slide .hero p,
body.mode-slide .sj-hero-v6 p,
body.mode-slide .sj-hero-v7 p,
body.mode-slide .sj-hero-v8 p,
body.mode-slide .chapter-hero-banner p {
    font-size: 0.88rem !important;
    max-width: 800px;
    margin: 0 auto 6px auto !important;
    opacity: 0.9;
}

body.mode-slide .hero .breadcrumb,
body.mode-slide .sj-hero-v6 .breadcrumb,
body.mode-slide .sj-hero-v7 .breadcrumb,
body.mode-slide .sj-hero-v8 .breadcrumb,
body.mode-slide .chapter-hero-banner .breadcrumb {
    margin-bottom: 6px !important;
    font-size: 0.8rem !important;
}

/* Hide AI summary block in slide mode to keep top section ultra compact */
body.mode-slide .ai-summary {
    display: none !important;
}

body.mode-slide .sj-toc-nav,
body.mode-slide .toc-nav-container,
body.mode-slide .chapter-toc {
    display: none !important;
}

.view-mode-toggle {
    display: inline-flex;
    background: #f1f5f9;
    border: 1px solid var(--slide-border);
    border-radius: 50px;
    padding: 3px;
    gap: 4px;
}

body.dark-mode .view-mode-toggle {
    background: #1e293b;
}

.mode-btn {
    border: none;
    background: transparent;
    color: var(--slide-muted);
    font-family: inherit;
    font-size: 0.78rem;
    font-weight: 700;
    padding: 5px 14px;
    border-radius: 50px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    user-select: none;
}

.mode-btn.active {
    background: #ffffff;
    color: var(--slide-accent);
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

body.dark-mode .mode-btn.active {
    background: #0f172a;
    color: #34d399;
}

/* Slide Deck Master Frame */
.slide-deck-frame {
    width: 100%;
    margin: 0 auto;
}

/* Top Module Header Strip */
.slide-deck-header {
    background: #0f172a;
    border-radius: 18px 18px 0 0;
    padding: 12px 18px;
    color: #ffffff;
    border-bottom: 2px solid rgba(255,255,255,0.08);
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}

.slide-deck-top-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 10px;
}

.slide-deck-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: #f8fafc;
}

.slide-deck-title i {
    color: #10b981;
    font-size: 1.1rem;
}

.slide-dot-indicators {
    display: flex;
    align-items: center;
    gap: 6px;
}

.slide-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.25);
    transition: all 0.25s ease;
    cursor: pointer;
}

.slide-dot.active {
    width: 22px;
    border-radius: 10px;
    background: #10b981;
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.6);
}

/* Module Horizontal Tabs Strip */
.slide-tabs-strip {
    display: flex;
    align-items: center;
    gap: 6px;
    overflow-x: auto;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 4px;
}

.slide-tabs-strip::-webkit-scrollbar {
    display: none;
}

.slide-tab-pill {
    background: rgba(255, 255, 255, 0.08);
    color: #cbd5e1;
    border: 1px solid rgba(255, 255, 255, 0.12);
    padding: 5px 12px;
    border-radius: 50px;
    font-size: 0.76rem;
    font-weight: 600;
    white-space: nowrap;
    cursor: pointer;
    transition: all 0.2s ease;
    user-select: none;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.slide-tab-pill:hover {
    background: rgba(255, 255, 255, 0.15);
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.25);
}

.slide-tab-pill.active {
    background: linear-gradient(135deg, #059669, #047857);
    color: #ffffff;
    font-weight: 700;
    border-color: #34d399;
    box-shadow: 0 4px 14px rgba(5, 150, 105, 0.4);
}

.slide-tab-num {
    opacity: 0.8;
    font-size: 0.7rem;
    font-weight: 800;
}

/* Slide Top Progress Track with Chevrons */
.slide-track-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 18px;
    background: #1e293b;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.slide-track-nav-btn {
    background: transparent;
    border: none;
    color: #94a3b8;
    font-size: 1rem;
    cursor: pointer;
    padding: 2px 6px;
    transition: all 0.2s ease;
    border-radius: 6px;
}

.slide-track-nav-btn:hover:not(:disabled) {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.1);
}

.slide-track-nav-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.slide-track-meter {
    flex: 1;
    height: 6px;
    background: rgba(255, 255, 255, 0.12);
    border-radius: 10px;
    overflow: hidden;
    position: relative;
}

.slide-track-meter-fill {
    height: 100%;
    background: linear-gradient(90deg, #10b981, #059669);
    width: 12.5%;
    transition: width 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.5);
}

/* Slide Viewport Card Styling (when in slide mode) */
body.mode-slide main,
body.mode-slide .content-wrapper,
body.mode-slide .sj-container {
    display: block !important;
    gap: 0 !important;
    max-width: var(--container-width, 1200px);
    margin: 0 auto;
    padding: 0 1.5rem;
}

body.mode-slide .sj-card,
body.mode-slide .note-section {
    display: none !important;
    margin: 0 !important;
    border-radius: 0 !important;
    border-top: none !important;
    border-bottom: none !important;
    box-shadow: none !important;
    padding: 2.2rem 2.5rem !important;
    animation: slideFadeIn 0.3s cubic-bezier(0.16, 1, 0.3, 1) both;
}

/* Prevent unmigrated legacy cards inside main or containers from bleeding under active slides */
body.mode-slide main > .card:not(.active-slide),
body.mode-slide .sj-container > .card:not(.active-slide),
body.mode-slide .bottom-nav {
    display: none !important;
}

body.mode-slide .sj-card.active-slide,
body.mode-slide .note-section.active-slide {
    display: block !important;
    background: var(--slide-bg);
    border-left: 1px solid var(--slide-border) !important;
    border-right: 1px solid var(--slide-border) !important;
    border-top: none !important;
    border-bottom: none !important;
}

body.mode-slide .practice-link-box,
body.mode-slide .sj-container > div:not(.slide-deck-footer):not(#slideDeckAutoTop) a[href*="ncert-exercise-practice"] {
    display: none !important;
}

body.mode-slide .sj-card.active-slide + .practice-link-box,
body.mode-slide .note-section.active-slide + .practice-link-box {
    display: block !important;
    padding: 12px;
    background: var(--slide-bg);
    border-left: 1px solid var(--slide-border);
    border-right: 1px solid var(--slide-border);
}

@keyframes slideFadeIn {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Bottom Footer Navigation Bar */
.slide-deck-footer {
    background: #ffffff;
    border: 1px solid var(--slide-border);
    border-top: 1px solid var(--slide-border);
    border-radius: 0 0 18px 18px;
    padding: 14px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 8px 24px rgba(0,0,0,0.04);
    gap: 12px;
}

body.dark-mode .slide-deck-footer {
    background: #0f172a;
}

.slide-deck-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 20px;
    border-radius: 50px;
    font-family: inherit;
    font-size: 0.88rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    user-select: none;
    border: 1px solid transparent;
}

.slide-deck-btn.prev-btn {
    background: #f8fafc;
    color: #334155;
    border-color: var(--slide-border);
}

body.dark-mode .slide-deck-btn.prev-btn {
    background: #1e293b;
    color: #e2e8f0;
    border-color: #334155;
}

.slide-deck-btn.prev-btn:hover:not(:disabled) {
    background: #ffffff;
    border-color: var(--slide-accent);
    color: var(--slide-accent);
    transform: translateY(-1px);
}

.slide-deck-btn.next-btn {
    background: linear-gradient(135deg, #059669, #047857);
    color: #ffffff;
    box-shadow: 0 4px 14px rgba(5, 150, 105, 0.28);
}

.slide-deck-btn.next-btn:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(5, 150, 105, 0.4);
    filter: brightness(1.05);
}

.slide-deck-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

.slide-counter-badge {
    font-size: 0.86rem;
    font-weight: 700;
    color: var(--slide-muted);
    letter-spacing: 0.02em;
}

.slide-counter-badge strong {
    color: var(--slide-accent);
}

/* Keyboard Shortcut Hint */
.slide-key-hint {
    font-size: 0.72rem;
    color: var(--slide-muted);
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.slide-key-hint kbd {
    background: #f1f5f9;
    border: 1px solid #cbd5e1;
    padding: 1px 5px;
    border-radius: 4px;
    font-size: 0.68rem;
    font-family: inherit;
    color: #475569;
}

body.dark-mode .slide-key-hint kbd {
    background: #1e293b;
    border-color: #475569;
    color: #cbd5e1;
}

/* Chapters Navigation Bar (Displayed at the bottom of the last slide) */
.slide-chapter-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 2rem;
    padding: 1.25rem 1.5rem;
    background: #f8fafc;
    border: 1px solid var(--slide-border);
    border-radius: 16px;
}

body.dark-mode .slide-chapter-nav {
    background: #1e293b;
    border-color: #334155;
}

.slide-chapter-nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 50px;
    font-size: 0.88rem;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    border: 1px solid transparent;
}

.slide-chapter-nav-btn.prev {
    background: #ffffff;
    color: #334155;
    border-color: var(--slide-border);
}

body.dark-mode .slide-chapter-nav-btn.prev {
    background: #0f172a;
    color: #e2e8f0;
    border-color: #334155;
}

.slide-chapter-nav-btn.prev:hover {
    background: #f1f5f9;
    color: var(--slide-accent);
    border-color: var(--slide-accent);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.slide-chapter-nav-btn.next {
    background: linear-gradient(135deg, var(--slide-accent, #059669), var(--slide-accent-dark, #047857));
    color: #ffffff;
    box-shadow: 0 4px 14px rgba(5, 150, 105, 0.3);
}

.slide-chapter-nav-btn.next:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(5, 150, 105, 0.45);
    filter: brightness(1.05);
}

.slide-chapter-nav-btn.overview {
    background: #ffffff;
    color: #475569;
    border: 1px solid var(--slide-border);
}

body.dark-mode .slide-chapter-nav-btn.overview {
    background: #0f172a;
    color: #94a3b8;
    border-color: #334155;
}

.slide-chapter-nav-btn.overview:hover {
    color: var(--slide-accent);
    border-color: var(--slide-accent);
    transform: translateY(-2px);
}

/* When Full Scroll mode is chosen */
body.mode-scroll .slide-deck-header,
body.mode-scroll .slide-track-bar,
body.mode-scroll .slide-deck-footer {
    display: none !important;
}

body.mode-scroll .sj-card,
body.mode-scroll .note-section {
    display: block !important;
    margin-bottom: 1.5rem !important;
}

@media (max-width: 768px) {
    .slide-deck-header {
        border-radius: 14px 14px 0 0;
        padding: 10px 14px;
    }
    .slide-deck-footer {
        border-radius: 0 0 14px 14px;
        padding: 12px 14px;
    }
    .slide-deck-btn {
        padding: 7px 14px;
        font-size: 0.82rem;
    }
    .slide-key-hint {
        display: none;
    }
    body.mode-slide .sj-card {
        padding: 1.5rem 1.1rem !important;
    }
}