/* ============================================================
   DECK PAGE — The 10-Slide Cinematic Ride
   ============================================================ */

/* ── Ride Container — Full-screen presentation mode ── */
.ride-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

/* ── Canvas (persistent background, all slides) ── */
#lattice-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* ── HUD Overlay (fixed top bar) ── */
#hud {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 0.75rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(5, 5, 5, 0.7);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(59, 130, 246, 0.12);
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: rgba(255, 255, 255, 0.4);
    letter-spacing: 1.5px;
}

.hud-left {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.hud-brand {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.7);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.hud-sep {
    width: 1px;
    height: 12px;
    background: var(--fx-text-muted);
}

.hud-stat {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    text-transform: uppercase;
}

.hud-dot {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--fx-blue);
    box-shadow: 0 0 6px var(--fx-blue);
    animation: blink 2.5s infinite;
}

.hud-dot.violet {
    background: var(--fx-violet);
    box-shadow: 0 0 6px var(--fx-violet);
}

.hud-dot.green {
    background: #10b981;
    box-shadow: 0 0 6px #10b981;
}

.hud-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

#hud-slide-counter {
    font-size: 0.65rem;
    color: var(--fx-blue);
    letter-spacing: 2px;
}

/* ── Each Slide — stacked, fade in/out ── */
.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    z-index: 1;
    opacity: 0;
    pointer-events: none;
    transform: scale(0.92) translateY(30px);
    transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.slide.active {
    opacity: 1;
    pointer-events: all;
    z-index: 2;
    transform: scale(1) translateY(0);
}

/* Prev/next navigation — persistent glass circle buttons */
.deck-nav-prev,
.deck-nav-next {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    z-index: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(8, 12, 35, 0.65);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(59, 130, 246, 0.28);
    border-radius: 50%;
    opacity: 0.55;
    transition: all 0.25s ease;
    box-shadow: 0 0 24px rgba(0, 0, 0, 0.6);
}

.deck-nav-prev {
    left: 1.25rem;
}

.deck-nav-next {
    right: 1.25rem;
}

.deck-nav-prev:hover,
.deck-nav-next:hover {
    opacity: 1;
    border-color: rgba(59, 130, 246, 0.7);
    box-shadow: 0 0 28px rgba(59, 130, 246, 0.28), 0 0 60px rgba(0, 0, 0, 0.6);
    transform: translateY(-50%) scale(1.1);
}

.deck-nav-prev.hidden,
.deck-nav-next.hidden {
    opacity: 0;
    pointer-events: none;
}

.deck-nav-arrow {
    font-size: 1.5rem;
    color: rgba(59, 130, 246, 0.9);
    line-height: 1;
    pointer-events: none;
    user-select: none;
}


/* ── Slide Radial Glow (unique per slide) ── */
.slide::before {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}

.slide-1::before {
    background: radial-gradient(ellipse at 50% 50%, rgba(59, 130, 246, 0.06) 0%, transparent 65%);
}

.slide-2::before {
    background: radial-gradient(ellipse at 20% 60%, rgba(30, 64, 175, 0.08) 0%, transparent 60%);
}

.slide-3::before {
    background: radial-gradient(ellipse at 80% 30%, rgba(59, 130, 246, 0.07) 0%, transparent 60%);
}

.slide-4::before {
    background: radial-gradient(ellipse at 30% 70%, rgba(245, 158, 11, 0.05) 0%, transparent 60%);
}

.slide-5::before {
    background: radial-gradient(ellipse at 70% 40%, rgba(59, 130, 246, 0.06) 0%, transparent 60%);
}

.slide-6::before {
    background: radial-gradient(ellipse at 50% 50%, rgba(139, 92, 246, 0.06) 0%, transparent 60%);
}

.slide-7::before {
    background: radial-gradient(ellipse at 30% 50%, rgba(59, 130, 246, 0.05) 0%, transparent 55%);
}

.slide-8::before {
    background: radial-gradient(ellipse at 60% 30%, rgba(16, 185, 129, 0.06) 0%, transparent 55%);
}

.slide-9::before {
    background: radial-gradient(ellipse at 50% 50%, rgba(59, 130, 246, 0.07) 0%, transparent 60%);
}

.slide-10::before {
    background: radial-gradient(ellipse at 50% 50%, rgba(30, 64, 175, 0.1) 0%, transparent 65%);
}

/* ── Slide Content — fixed-size widescreen glassmorphic movie screen ── */
.slide-content {
    position: relative;
    z-index: 10;
    /* Flexible height to accommodate larger fonts */
    width: min(1300px, 92vw);
    height: 800px !important;
    min-height: unset;
    max-height: unset;
    overflow: hidden !important; /* Forces solid bounds mimicking standard 16:9 slides */
    padding: 2rem 3rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    /* Glass panel */
    background: rgba(4, 6, 22, 0.72);
    backdrop-filter: blur(28px) saturate(1.6);
    -webkit-backdrop-filter: blur(28px) saturate(1.6);
    border: 1px solid rgba(59, 130, 246, 0.22);
    border-top-color: rgba(59, 130, 246, 0.4);
    border-radius: 20px;
    box-shadow:
        0 0 0 1px rgba(0, 0, 0, 0.4) inset,
        0 4px 120px rgba(0, 0, 0, 0.9),
        0 0 80px rgba(59, 130, 246, 0.05),
        0 1px 0 rgba(255, 255, 255, 0.04) inset;
    /* Entry animation */
    opacity: 0;
    transform: translateY(40px) scale(0.97);
    transition:
        opacity var(--dur-slow) var(--ease-expo),
        transform var(--dur-slow) var(--ease-expo);
    scrollbar-width: thin;
    scrollbar-color: rgba(59, 130, 246, 0.25) transparent;
}

.slide-content::-webkit-scrollbar {
    width: 3px;
}

.slide-content::-webkit-scrollbar-track {
    background: transparent;
}

.slide-content::-webkit-scrollbar-thumb {
    background: rgba(59, 130, 246, 0.3);
    border-radius: 2px;
}

.slide-content.visible {
    opacity: 1;
    transform: translateY(0) scale(1);
}

/* ── Slide Number ── */
.slide-number {
    position: absolute;
    top: 5rem;
    left: 3rem;
    margin: 0 !important;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 4px;
    color: rgba(59, 130, 246, 0.5);
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.slide-number::after {
    content: '';
    display: block;
    width: 40px;
    height: 1px;
    background: var(--fx-gradient-divider);
}

/* ── Main Headline ── */
.slide-headline {
    margin-top: 6rem !important; /* Forces uniform spacing from the top row */
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 3.8rem);
    font-weight: 800;
    letter-spacing: -2px;
    line-height: 1.08;
    color: var(--fx-text-primary);
    margin-bottom: 1rem;
}

.slide-headline .hl {
    background: var(--fx-gradient-heading);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: none;
    filter: drop-shadow(0 0 30px rgba(59, 130, 246, 0.3));
}

.slide-headline .hl-amber {
    background: linear-gradient(90deg, #ffffff, #F59E0B);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.slide-headline .hl-violet {
    background: linear-gradient(90deg, #ffffff, #8B5CF6);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ── Sub copy ── */
.slide-body {
    font-size: 1.15rem;
    color: var(--fx-text-secondary);
    line-height: 1.65;
    max-width: 100%;
    font-weight: 300;
    margin-bottom: 1.25rem;
}

.slide-body strong {
    color: var(--fx-text-primary);
    font-weight: 500;
}

/* ── Academic quote block ── */
.slide-quote {
    font-family: var(--font-academic);
    font-size: 1.3rem;
    color: rgba(255, 255, 255, 0.6);
    font-style: italic;
    border-left: 2px solid var(--fx-blue);
    padding-left: 1.25rem;
    margin: 1.5rem 0 2rem;
    max-width: 560px;
    line-height: 1.6;
}

/* ── Stat blocks ── */
.slide-stats {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.stat-block {
    background: var(--fx-glass-bg);
    border: 1px solid var(--fx-glass-border);
    border-top-color: rgba(59, 130, 246, 0.25);
    border-radius: 12px;
    padding: 1.25rem 1.75rem;
    backdrop-filter: blur(12px);
    min-width: 140px;
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--fx-blue);
    text-shadow: 0 0 20px rgba(59, 130, 246, 0.4);
    line-height: 1;
    margin-bottom: 0.3rem;
}

.stat-label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.4);
}

/* ── Tag pills ── */
.slide-tags {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-top: 1.5rem;
}

.slide-tag {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--fx-blue);
    border: 1px solid rgba(59, 130, 246, 0.3);
    padding: 0.4rem 0.9rem;
    border-radius: 20px;
    background: rgba(59, 130, 246, 0.05);
    transition: all 0.2s ease;
}

.slide-tag:hover {
    background: rgba(59, 130, 246, 0.12);
    border-color: var(--fx-blue);
}

/* ── Books (slide 7) ── */
.books-row {
    display: flex;
    gap: 2.5rem;
    align-items: flex-end;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.book-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    opacity: 0;
    transform: translateY(30px) rotateY(-8deg);
    transition: all 0.9s var(--ease-expo);
}

.slide-content.visible .book-item:nth-child(1) {
    opacity: 1;
    transform: translateY(0) rotateY(-3deg);
    transition-delay: 0.1s;
}

.slide-content.visible .book-item:nth-child(2) {
    opacity: 1;
    transform: translateY(-8px) rotateY(0deg);
    transition-delay: 0.25s;
}

.slide-content.visible .book-item:nth-child(3) {
    opacity: 1;
    transform: translateY(0) rotateY(3deg);
    transition-delay: 0.4s;
}

.book-img {
    width: 140px;
    height: auto;
    border-radius: 4px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.7), 0 0 30px rgba(59, 130, 246, 0.15);
    transition: transform 0.4s var(--ease-expo), box-shadow 0.4s ease;
    cursor: default;
}

.book-img:hover {
    transform: translateY(-8px) scale(1.04) !important;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.8), 0 0 50px rgba(59, 130, 246, 0.25);
}

.book-title {
    font-family: var(--font-academic);
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.5);
    text-align: center;
    max-width: 140px;
    line-height: 1.4;
    font-style: italic;
}

/* ── Symbiosis canvas (slide 7) ── */
.symbiosis-layout {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 2rem;
    align-items: center;
    margin-top: 2rem;
    width: 100%;
    max-width: 700px;
}

.symbiosis-side {
    text-align: center;
}

.symbiosis-label {
    font-family: var(--font-heading);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.symbiosis-label.human {
    color: var(--fx-amber);
}

.symbiosis-label.machine {
    color: var(--fx-blue);
}

.symbiosis-icon {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.symbiosis-desc {
    font-size: 0.8rem;
    color: var(--fx-text-secondary);
    line-height: 1.5;
}

.symbiosis-bridge {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.1rem;
    letter-spacing: 1px;
    color: var(--fx-text-primary);
    background: var(--fx-gradient-heading);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-align: center;
    white-space: nowrap;
}

/* ── Bar chart (slide 8) ── */
.chart-container {
    display: flex;
    align-items: flex-end;
    gap: 1.5rem;
    height: 140px;
    margin-top: 2rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid rgba(59, 130, 246, 0.2);
}

.bar-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    flex: 1;
}

.bar {
    width: 100%;
    border-radius: 4px 4px 0 0;
    height: 0;
    transition: height 1.2s var(--ease-expo);
    position: relative;
}

.bar.manual {
    background: linear-gradient(180deg, rgba(148, 163, 184, 0.4), rgba(148, 163, 184, 0.15));
    border: 1px solid rgba(148, 163, 184, 0.3);
    max-height: 70px;
}

.bar.fluxive {
    background: linear-gradient(180deg, var(--fx-blue), var(--fx-blue-dark));
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.35);
    border: 1px solid rgba(59, 130, 246, 0.5);
    max-height: 130px;
}

.bar-label {
    font-family: var(--font-mono);
    font-size: 0.62rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--fx-text-muted);
    text-align: center;
}

/* ── Global map ── */
#world-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    opacity: 0.4;
    pointer-events: none;
}

/* ── Final CTA slide ── */
.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1.1rem 2.5rem;
    background: linear-gradient(135deg, var(--fx-blue-dark), var(--fx-blue));
    border: none;
    border-radius: 10px;
    color: white;
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    cursor: pointer;
    text-decoration: none;
    transition: all var(--dur-med) var(--ease-expo);
    box-shadow: 0 4px 30px rgba(59, 130, 246, 0.3);
    margin-top: 2rem;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(59, 130, 246, 0.5);
}

.cta-button .arrow {
    transition: transform 0.2s ease;
}

.cta-button:hover .arrow {
    transform: translateX(4px);
}

/* ── Slide nav dots — bottom center ── */
#slide-nav {
    position: fixed;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 500;
    display: flex;
    flex-direction: row;
    gap: 8px;
    align-items: center;
}

.nav-dot {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--fx-text-muted);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.nav-dot.active {
    background: var(--fx-blue);
    box-shadow: 0 0 8px var(--fx-blue);
    transform: scale(1.4);
}

.nav-dot:hover {
    background: rgba(59, 130, 246, 0.6);
}

/* ── Premium Aesthetics & Micro-Animations ── */
.premium-hover {
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1) !important;
    box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.08), 0 4px 20px rgba(0, 0, 0, 0.3) !important;
}

.premium-hover:hover {
    transform: translateY(-4px) scale(1.015) !important;
    box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.2), 0 12px 40px rgba(59, 130, 246, 0.25), 0 0 80px rgba(59, 130, 246, 0.1) !important;
    border-color: rgba(96, 165, 250, 0.5) !important;
    background: rgba(15, 23, 42, 0.6) !important;
}

/* Extra punch for the primary highlights */
.hl-glow {
    text-shadow: 0 0 20px rgba(59, 130, 246, 0.5), 0 0 50px rgba(59, 130, 246, 0.3);
}

.hl-glow-indigo {
    text-shadow: 0 0 20px rgba(139, 92, 246, 0.6), 0 0 50px rgba(139, 92, 246, 0.3);
}

@keyframes subtlePulse {
    0% { opacity: 0.8; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.05); }
    100% { opacity: 0.8; transform: scale(1); }
}

.anim-pulse {
    animation: subtlePulse 3s ease-in-out infinite;
}

/* ── Comprehensive Responsive ── */
@media (max-width: 900px) {
    /* Container Resets */
    .slide-content {
        padding: 2rem 1.5rem 6rem 1.5rem !important; /* Extra bottom padding to clear nav controls */
        width: 95vw !important;
        height: 85vh !important;
        min-height: unset !important;
        overflow-y: auto !important; /* Must scroll on mobile */
        display: flex;
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
    }

    /* Typography */
    .slide-headline {
        font-size: 2.1rem !important;
        letter-spacing: -1px;
        line-height: 1.2;
        margin-top: 1rem;
        word-wrap: break-word; /* Prevent long words blowing out */
    }

    .slide-body {
        font-size: 1rem !important;
        line-height: 1.5;
    }
    
    .slide-quote {
        font-size: 1.1rem !important;
        padding-left: 1rem !important;
        margin-top: 1.5rem !important;
    }

    /* HUD Adjustments */
    #hud {
        padding: 0.5rem 1rem !important;
        flex-wrap: wrap; /* allow wrapping if very tight */
    }
    .hud-stat, .hud-sep, #hud-slide-counter {
        display: none !important; /* Hide non-critical HUD on mobile */
    }
    .hud-brand {
        font-size: 0.65rem !important;
    }
    
    /* Layout Forcers */
    .slide {
        overflow-y: auto !important; /* Allow the entire slide to scroll if needed */
    }

    .slide-tags {
        position: relative !important;
        top: 0 !important;
        right: 0 !important;
        margin-bottom: 1rem !important;
        justify-content: flex-start !important;
    }

    .responsive-grid,
    .dmas-grid,
    .two-col-mobile,
    .robotics-grid, 
    .sector-cards,
    .flex-row-to-col {
        display: flex !important;
        flex-direction: column !important;
        gap: 1.5rem !important;
        width: 100% !important;
        height: auto !important;
    }

    .stack-layer {
        width: 100% !important;
        flex-direction: column !important;
        text-align: center;
        gap: 0.6rem !important;
        padding: 1rem !important;
    }

    .stack-layer > div:first-child {
        margin-bottom: 0.25rem;
    }

    /* Book / Spec adjustments */
    .books-row {
        justify-content: center;
        flex-direction: column !important;
        align-items: center !important;
        gap: 1.5rem !important;
    }

    .book-img {
        width: 110px;
        transform: none !important; /* strip angled 3D rotation on mobile */
    }

    .symbiosis-layout {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    /* Charts and Tables */
    .chart-container {
        height: auto !important;
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
    
    .table-wrapper {
        width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        margin-top: 1rem;
    }
    
    table {
        min-width: 600px; /* force scrolling rather than squishing out of sight */
    }

    /* Hide Desktop Trimmings */
    #slide-nav {
        bottom: 0.5rem;
    }
    
    .deck-nav-prev, .deck-nav-next {
        width: 38px;
        height: 38px;
        top: auto;
        bottom: 1.5rem; /* move to bottom corner rather than middle edge */
        transform: none !important;
    }
    .deck-nav-prev { left: 1rem; }
    .deck-nav-next { right: 1rem; }
}
/* ── Slide Tags (Topic Pills) ── */
.slide-tags {
    position: absolute !important;
    top: 5rem !important;
    right: 3rem !important;
    margin: 0 !important;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 0.5rem;
}