@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Noto+Sans+Armenian:wght@300;400;500;600;700;800&family=Fira+Code:wght@400;500;600&display=swap');

.presentation-shell,
.presentation-shell * {
    box-sizing: border-box;
}

.presentation-shell {
    --bg-0: #020617;
    --bg-1: #07111f;
    --panel: rgba(10, 18, 35, .72);
    --panel-2: rgba(15, 23, 42, .88);
    --line: rgba(148, 163, 184, .18);
    --line-strong: rgba(96, 165, 250, .42);
    --text: #f8fafc;
    --muted: #9aa8bf;
    --soft: #cbd5e1;
    --blue: #3b82f6;
    --cyan: #22d3ee;
    --gold: #f59e0b;
    --violet: #8b5cf6;
    --green: #10b981;
    --danger: #fb7185;
    --shadow: 0 28px 90px rgba(0, 0, 0, .55);
    --radius-xl: 32px;
    --radius-lg: 24px;
    --ease: cubic-bezier(.2, .8, .2, 1);
    position: fixed;
    inset: 0;
    z-index: 999999;
    overflow: hidden;
    isolation: isolate;
    font-family: 'Inter', 'Noto Sans Armenian', system-ui, sans-serif;
    color: var(--text);
    background:
            radial-gradient(circle at 8% 18%, rgba(59, 130, 246, .22), transparent 28%),
            radial-gradient(circle at 88% 16%, rgba(245, 158, 11, .16), transparent 25%),
            radial-gradient(circle at 68% 84%, rgba(139, 92, 246, .18), transparent 28%),
            linear-gradient(135deg, #020617 0%, #07111f 42%, #020617 100%);
}

.presentation-shell::before {
    content: "";
    position: absolute;
    inset: -2px;
    background-image:
            linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
            linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: radial-gradient(circle at center, black 0 55%, transparent 78%);
    animation: deckGrid 24s linear infinite;
    z-index: -3;
}

.presentation-shell::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
            linear-gradient(120deg, transparent 0%, rgba(255,255,255,.05) 42%, transparent 50%),
            radial-gradient(circle at 50% 0%, rgba(255,255,255,.08), transparent 42%);
    mix-blend-mode: screen;
    animation: deckLight 8s var(--ease) infinite alternate;
    z-index: -2;
}

@keyframes deckGrid {
    to {
        transform: translate3d(-48px, 48px, 0);
    }
}

@keyframes deckLight {
    from {
        opacity: .35;
        transform: translateX(-3%);
    }

    to {
        opacity: .75;
        transform: translateX(3%);
    }
}

.aurora {
    position: absolute;
    width: 52vmax;
    height: 52vmax;
    border-radius: 999px;
    filter: blur(70px);
    opacity: .32;
    pointer-events: none;
    z-index: -1;
    animation: floatAurora 11s var(--ease) infinite alternate;
}

.aurora.one {
    left: -18vmax;
    top: -20vmax;
    background: #2563eb;
}

.aurora.two {
    right: -20vmax;
    bottom: -24vmax;
    background: #7c3aed;
    animation-delay: -4s;
}

.aurora.three {
    left: 42%;
    top: 58%;
    width: 28vmax;
    height: 28vmax;
    background: #f59e0b;
    opacity: .18;
    animation-delay: -7s;
}

@keyframes floatAurora {
    to {
        transform: translate3d(7vw, -5vh, 0) scale(1.08);
    }
}

.deck-frame {
    position: absolute;
    inset: clamp(14px, 2vw, 34px);
    border: 1px solid rgba(148, 163, 184, .18);
    border-radius: 34px;
    background: linear-gradient(180deg, rgba(15, 23, 42, .54), rgba(2, 6, 23, .74));
    box-shadow: var(--shadow), inset 0 1px 0 rgba(255,255,255,.08);
    overflow: hidden;
}

.topbar {
    position: absolute;
    left: clamp(22px, 3vw, 52px);
    right: clamp(22px, 3vw, 52px);
    top: clamp(18px, 2.4vw, 40px);
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    z-index: 50;
}

.brand {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 16px;
    border: 1px solid rgba(148, 163, 184, .16);
    border-radius: 20px;
    background: rgba(15, 23, 42, .54);
    backdrop-filter: blur(18px);
    box-shadow: 0 18px 42px rgba(0,0,0,.25);
}

.brand-mark {
    width: 38px;
    height: 38px;
    border-radius: 14px;
    display: grid;
    place-items: center;
    color: white;
    background: linear-gradient(135deg, var(--blue), var(--violet));
    box-shadow: 0 0 32px rgba(59,130,246,.45);
    font-size: 20px;
}

.brand strong {
    display: block;
    font-size: 14px;
    letter-spacing: .02em;
}

.brand span {
    color: var(--muted);
    font-size: 11px;
}

.top-actions {
    display: flex;
    gap: 10px;
    align-items: center;
}

.deck-btn {
    border: 1px solid rgba(148,163,184,.18);
    background: rgba(15,23,42,.72);
    color: var(--text);
    border-radius: 16px;
    padding: 12px 16px;
    font-weight: 700;
    font-size: 13px;
    letter-spacing: .01em;
    cursor: pointer;
    transition: transform .25s var(--ease), border-color .25s var(--ease), background .25s var(--ease), box-shadow .25s var(--ease);
    box-shadow: 0 14px 34px rgba(0,0,0,.2);
}

.deck-btn:hover {
    transform: translateY(-2px);
    border-color: rgba(96,165,250,.45);
    box-shadow: 0 20px 48px rgba(59,130,246,.18);
}

.deck-btn.primary {
    border-color: rgba(59,130,246,.54);
    background: linear-gradient(135deg, #2563eb, #7c3aed);
}

.deck-btn:disabled {
    opacity: .35;
    cursor: not-allowed;
    transform: none;
}

.slide-stage {
    position: absolute;
    inset: 96px 0 72px 0;
    perspective: 1600px;
}

.slide {
    position: absolute;
    inset: 0;
    padding: clamp(28px, 4vw, 72px) clamp(28px, 5.4vw, 96px);
    opacity: 0;
    pointer-events: none;
    transform: translate3d(58px, 0, 0) rotateY(-8deg) scale(.96);
    transition: opacity .72s var(--ease), transform .72s var(--ease), filter .72s var(--ease);
    filter: blur(8px);
    display: grid;
    align-content: center;
}

.slide.active {
    opacity: 1;
    pointer-events: auto;
    transform: translate3d(0,0,0) rotateY(0) scale(1);
    filter: blur(0);
}

.slide.scroll {
    align-content: start;
    overflow: auto;
    padding-top: clamp(22px, 3vw, 52px);
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    color: #bfdbfe;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: .18em;
    text-transform: uppercase;
    margin-bottom: 18px;
}

.eyebrow::before {
    content: "";
    width: 38px;
    height: 2px;
    border-radius: 10px;
    background: linear-gradient(90deg, var(--blue), var(--gold));
    box-shadow: 0 0 18px rgba(59,130,246,.5);
}

h1,
h2,
h3,
p,
ul {
    margin-top: 0;
}

h1 {
    max-width: 1080px;
    font-size: clamp(48px, 7vw, 118px);
    line-height: .92;
    letter-spacing: -.07em;
    margin-bottom: 22px;
    font-weight: 900;
    background: linear-gradient(135deg, #fff 0%, #dbeafe 36%, #93c5fd 62%, #fbbf24 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

h2 {
    font-size: clamp(30px, 4vw, 62px);
    line-height: 1.02;
    letter-spacing: -.045em;
    margin-bottom: 22px;
    font-weight: 900;
}

h3 {
    font-size: clamp(18px, 1.7vw, 26px);
    margin-bottom: 12px;
    font-weight: 800;
}

p {
    color: var(--muted);
    font-size: clamp(15px, 1.15vw, 19px);
    line-height: 1.74;
    margin-bottom: 18px;
}

.lead {
    color: #dbeafe;
    font-size: clamp(18px, 1.7vw, 26px);
    line-height: 1.55;
    max-width: 940px;
}

strong {
    color: #fff;
    font-weight: 800;
}

code {
    font-family: 'Fira Code', monospace;
    color: #bfdbfe;
    background: rgba(59,130,246,.12);
    border: 1px solid rgba(59,130,246,.22);
    border-radius: 9px;
    padding: .16rem .48rem;
    font-size: .91em;
}

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

li {
    color: #cbd5e1;
    line-height: 1.58;
    margin: 10px 0;
    padding-left: 26px;
    position: relative;
    font-size: clamp(14px, 1vw, 17px);
}

li::before {
    content: "";
    position: absolute;
    left: 0;
    top: .72em;
    width: 8px;
    height: 8px;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--blue), var(--gold));
    box-shadow: 0 0 18px rgba(59,130,246,.5);
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.12fr) minmax(320px, .88fr);
    gap: clamp(28px, 5vw, 78px);
    align-items: center;
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(18px, 2.2vw, 30px);
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(16px, 2vw, 26px);
}

.stack {
    display: grid;
    gap: 18px;
}

.card {
    --mx: 20%;
    --my: 0%;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(148, 163, 184, .16);
    background: linear-gradient(180deg, rgba(15, 23, 42, .72), rgba(15, 23, 42, .46));
    border-radius: var(--radius-lg);
    padding: clamp(20px, 2.4vw, 34px);
    box-shadow: 0 20px 70px rgba(0,0,0,.34), inset 0 1px 0 rgba(255,255,255,.07);
    backdrop-filter: blur(22px);
    transition: transform .35s var(--ease), border-color .35s var(--ease), box-shadow .35s var(--ease);
}

.card::before {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: radial-gradient(circle at var(--mx, 20%) var(--my, 0%), rgba(59,130,246,.18), transparent 38%);
    opacity: .8;
}   

.card:hover {
    transform: translateY(-6px);
    border-color: rgba(96,165,250,.42);
    box-shadow: 0 28px 86px rgba(0,0,0,.45), 0 0 45px rgba(59,130,246,.12);
}

.card-label {
    display: inline-flex;
    gap: 8px;
    align-items: center;
    color: #fbbf24;
    text-transform: uppercase;
    letter-spacing: .13em;
    font-size: 11px;
    font-weight: 900;
    margin-bottom: 14px;
}

.card-label::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 999px;
    background: currentColor;
    box-shadow: 0 0 20px currentColor;
}

.metric-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 28px;
}

.metric {
    padding: 14px 16px;
    min-width: 132px;
    border: 1px solid rgba(148,163,184,.16);
    border-radius: 18px;
    background: rgba(15,23,42,.5);
}

.metric b {
    display: block;
    font-size: 22px;
    color: #fff;
}

.metric span {
    color: var(--muted);
    font-size: 12px;
}

.chess-orb {
    width: min(470px, 35vw);
    aspect-ratio: 1;
    border-radius: 42px;
    position: relative;
    background: linear-gradient(145deg, rgba(255,255,255,.09), rgba(255,255,255,.02));
    border: 1px solid rgba(148,163,184,.18);
    box-shadow: 0 38px 120px rgba(0,0,0,.48), inset 0 1px 0 rgba(255,255,255,.1);
    transform: rotateX(8deg) rotateY(-12deg);
    animation: heroFloat 5s var(--ease) infinite alternate;
    display: grid;
    place-items: center;
    overflow: hidden;
}

.chess-orb::after {
    content: "♛";
    font-size: clamp(120px, 14vw, 220px);
    color: rgba(255,255,255,.92);
    text-shadow: 0 0 80px rgba(59,130,246,.65);
    animation: queenPulse 3.4s var(--ease) infinite alternate;
}

.chess-board-ghost {
    position: absolute;
    width: 72%;
    aspect-ratio: 1;
    opacity: .2;
    background-size: 25% 25%;
    background-image:
            linear-gradient(45deg, rgba(255,255,255,.9) 25%, transparent 25%),
            linear-gradient(-45deg, rgba(255,255,255,.9) 25%, transparent 25%),
            linear-gradient(45deg, transparent 75%, rgba(255,255,255,.9) 75%),
            linear-gradient(-45deg, transparent 75%, rgba(255,255,255,.9) 75%);
    background-position: 0 0, 0 50%, 50% -50%, -50% 0;
    transform: rotate(45deg);
    filter: blur(.2px);
}

@keyframes heroFloat {
    to {
        transform: rotateX(4deg) rotateY(12deg) translateY(-14px);
    }
}

@keyframes queenPulse {
    to {
        transform: scale(1.05);
        text-shadow: 0 0 120px rgba(245,158,11,.7);
    }
}

.arch-map {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 18px;
    align-items: stretch;
}

.arch-column {
    border-radius: 24px;
    padding: 22px;
    border: 1px solid rgba(148,163,184,.16);
    background: rgba(2,6,23,.38);
    min-height: 430px;
}

.arch-pill {
    padding: 16px;
    border-radius: 18px;
    margin: 12px 0;
    background: linear-gradient(135deg, rgba(59,130,246,.16), rgba(139,92,246,.1));
    border: 1px solid rgba(96,165,250,.22);
    position: relative;
    overflow: hidden;
}

.arch-pill::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,.08), transparent);
    transform: translateX(-100%);
    animation: shimmer 5s infinite;
}

@keyframes shimmer {
    50%,
    100% {
        transform: translateX(100%);
    }
}

.tree {
    font-family: 'Fira Code', monospace;
    font-size: clamp(12px, .9vw, 15px);
    color: #cbd5e1;
    border-radius: 24px;
    padding: 24px;
    background: rgba(2,6,23,.48);
    border: 1px solid rgba(148,163,184,.16);
    box-shadow: inset 0 0 32px rgba(0,0,0,.25);
}

.tree .folder {
    color: #fbbf24;
    font-weight: 800;
    margin: 9px 0;
}

.tree .file {
    margin-left: 20px;
    color: #93c5fd;
    padding: 4px 0;
}

.tree .file.green {
    color: #86efac;
}

.tree .file.violet {
    color: #c4b5fd;
}

.flow {
    position: relative;
    padding: 42px 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
}

.flow::before {
    content: "";
    position: absolute;
    left: 7%;
    right: 7%;
    top: 50%;
    height: 2px;
    background: linear-gradient(90deg, rgba(59,130,246,.2), rgba(245,158,11,.75), rgba(34,211,238,.2));
}

.flow-packet {
    position: absolute;
    top: 50%;
    left: 7%;
    width: 16px;
    height: 16px;
    border-radius: 999px;
    background: #fbbf24;
    box-shadow: 0 0 28px #fbbf24;
    transform: translateY(-50%);
    animation: packetMove 5.5s var(--ease) infinite;
    z-index: 4;
}

@keyframes packetMove {
    0% {
        left: 7%;
        opacity: 0;
    }

    8% {
        opacity: 1;
    }

    25% {
        left: 28%;
    }

    50% {
        left: 50%;
    }

    75% {
        left: 72%;
    }

    92% {
        opacity: 1;
    }

    100% {
        left: 91%;
        opacity: 0;
    }
}

.flow-node {
    position: relative;
    z-index: 2;
    width: 170px;
    min-height: 98px;
    display: grid;
    place-items: center;
    text-align: center;
    padding: 16px;
    border-radius: 20px;
    border: 1px solid rgba(96,165,250,.34);
    background: rgba(15,23,42,.88);
    box-shadow: 0 18px 44px rgba(0,0,0,.32);
    font-weight: 900;
}

.flow-node small {
    color: var(--muted);
    display: block;
    font-weight: 600;
    margin-top: 4px;
}

.footer {
    position: absolute;
    left: clamp(22px, 3vw, 52px);
    right: clamp(22px, 3vw, 52px);
    bottom: clamp(18px, 2.4vw, 36px);
    z-index: 60;
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 18px;
    pointer-events: none;
}

.footer > * {
    pointer-events: auto;
}

.counter {
    color: var(--muted);
    font-family: 'Fira Code', monospace;
    font-size: 13px;
    letter-spacing: .08em;
}

.progress-wrap {
    height: 6px;
    flex: 1;
    max-width: 520px;
    border-radius: 999px;
    background: rgba(148,163,184,.16);
    overflow: hidden;
    box-shadow: inset 0 0 8px rgba(0,0,0,.45);
}

.progress {
    --progress: 0%;
    height: 100%;
    width: var(--progress);
    border-radius: inherit;
    background: linear-gradient(90deg, var(--blue), var(--violet), var(--gold));
    box-shadow: 0 0 28px rgba(59,130,246,.55);
    transition: width .55s var(--ease);
}

.nav {
    display: flex;
    gap: 10px;
}

.reveal {
    animation: revealUp .75s var(--ease) both;
}

.d1 {
    animation-delay: .08s;
}

.d2 {
    animation-delay: .18s;
}

.d3 {
    animation-delay: .30s;
}

.d4 {
    animation-delay: .42s;
}

@keyframes revealUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 1100px) {
    .grid-3,
    .arch-map,
    .hero-grid {
        grid-template-columns: 1fr;
    }

    .chess-orb {
        display: none;
    }

    .slide-stage {
        top: 88px;
    }

    .flow {
        overflow: auto;
        justify-content: flex-start;
    }

    .flow::before {
        width: 900px;
        right: auto;
    }

    .flow-node {
        flex: 0 0 170px;
    }
}

@media (max-width: 760px) {
    .topbar {
        left: 14px;
        right: 14px;
        top: 12px;
    }

    .brand span {
        display: none;
    }

    .slide {
        padding: 96px 20px 90px;
        align-content: start;
        overflow: auto;
    }

    .slide-stage {
        inset: 0;
    }

    .grid-2 {
        grid-template-columns: 1fr;
    }

    .footer {
        left: 14px;
        right: 14px;
        bottom: 12px;
        align-items: center;
    }

    .progress-wrap {
        display: none;
    }

    .deck-btn {
        padding: 10px 12px;
    }

    .top-actions .deck-btn:not(.primary) {
        display: none;
    }
}