/* Responsive audit notes:
- Body currently sets overflow-x: hidden, preventing horizontal scrolling for dense data views on small screens.
- The site header navigation stays in a single horizontal row with wide gaps, which can overflow narrow widths.
- Section and hero panels assume large horizontal padding and max widths (~1120px) without a centered container wrapper.
- Demo grid and architecture diagram default to multi-column layouts that collapse awkwardly on phones.
- Footer layout relies on a three-column grid and sticky positioning that struggles on compact viewports.
*/

:root {
    color-scheme: dark;
    --bg: #0b1118;
    --bg-alt: #121a24;
    --bg-elevated: #182030;
    --text-primary: #f4f6fb;
    --text-secondary: #c0cad6;
    --text-muted: #7b889d;
    --accent-primary: #4fc3f7;
    --accent-secondary: #80cbc4;
    --accent-tertiary: #f48fb1;
    --accent-quaternary: #9f8cff;
    --accent-warm: #ffb86b;
    --glass-bg: rgba(18, 24, 36, 0.75);
    --glass-border: rgba(112, 140, 178, 0.26);
    --glass-shadow: 0 28px 80px rgba(4, 9, 16, 0.55);
    --glass-blur: 20px;
    --line-color: rgba(102, 126, 160, 0.24);
    --chip-bg: rgba(79, 195, 247, 0.18);
    --button-glow: rgba(79, 195, 247, 0.55);
    --toast-bg: rgba(17, 22, 31, 0.94);
    --surface-gradient-start: rgba(16, 23, 35, 0.86);
    --surface-gradient-end: rgba(10, 16, 25, 0.64);
    --card-accent-a: rgba(79, 195, 247, 0.16);
    --card-accent-b: rgba(244, 143, 177, 0.12);
    --tabs-glow: rgba(4, 9, 16, 0.5);
    --radius-lg: 26px;
    --radius-md: 18px;
    --radius-sm: 12px;
    --transition: 220ms cubic-bezier(0.22, 1, 0.36, 1);
    --font-family: 'Inter Tight', 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --page-max: 80rem;
    --section-max: 75rem;
    --page-gutter: clamp(1.25rem, 4vw, 3rem);
    --page-gutter-tight: clamp(1rem, 3.5vw, 2.25rem);
}

html {
    scroll-behavior: smooth;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: var(--font-family);
    color: var(--text-primary);
    background-color: var(--bg);
    background-image: radial-gradient(circle at 12% 18%, rgba(79, 195, 247, 0.22), transparent 55%),
        radial-gradient(circle at 82% 12%, rgba(159, 140, 255, 0.16), transparent 45%),
        radial-gradient(circle at 18% 88%, rgba(255, 184, 107, 0.15), transparent 50%),
        linear-gradient(160deg, var(--bg) 0%, var(--bg-alt) 50%, var(--bg-elevated) 100%);
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    position: relative;
}

body::before,
body::after {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: -2;
}

body::before {
    background: radial-gradient(circle at 12% 10%, rgba(79, 195, 247, 0.25), transparent 42%),
        radial-gradient(circle at 88% 22%, rgba(159, 140, 255, 0.2), transparent 48%),
        radial-gradient(circle at 72% 78%, rgba(128, 203, 196, 0.16), transparent 42%);
    filter: blur(20px);
    opacity: 0.9;
    mix-blend-mode: screen;
    animation: auroraShift 18s ease-in-out infinite;
}

body::after {
    background: radial-gradient(circle at 20% 20%, rgba(79, 195, 247, 0.14), transparent 40%),
        radial-gradient(circle at 80% 80%, rgba(128, 203, 196, 0.14), transparent 45%),
        radial-gradient(circle at 40% 72%, rgba(244, 143, 177, 0.12), transparent 45%);
    mix-blend-mode: screen;
    z-index: -3;
}

.grain {
    position: fixed;
    inset: -200%;
    background-image: url('data:image/svg+xml,%3Csvg xmlns="http://www.w3.org/2000/svg" width="160" height="160" viewBox="0 0 160 160"%3E%3Cfilter id="n"%3E%3CfeTurbulence type="fractalNoise" baseFrequency="1.2" numOctaves="4" stitchTiles="stitch"/%3E%3C/filter%3E%3Crect width="160" height="160" filter="url(%23n)" opacity="0.16"/%3E%3C/svg%3E');
    background-size: 340px 340px;
    opacity: 0.22;
    mix-blend-mode: soft-light;
    pointer-events: none;
    z-index: -1;
}

main {
    flex: 1;
    display: grid;
    gap: clamp(2.75rem, 5vw, 5.5rem);
    padding-block: clamp(3rem, 6vw, 5rem) clamp(5rem, 8vw, 6.5rem);
    padding-inline: var(--page-gutter);
}

main > section {
    width: min(100%, var(--section-max));
    margin-inline: auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 40;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: clamp(0.5rem, 1.5vw, 0.75rem);
    padding-block: clamp(0.85rem, 2vw, 1.25rem);
    padding-inline: var(--page-gutter-tight);
    backdrop-filter: blur(18px);
    background: linear-gradient(180deg, rgba(9, 13, 19, 0.85), rgba(9, 13, 19, 0));
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.brand {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: clamp(0.65rem, 2vw, 0.85rem);
    color: inherit;
    text-decoration: none;
    font-weight: 600;
    letter-spacing: 0.04em;
    width: 100%;
}

.brand-mark {
    width: clamp(2.6rem, 7vw, 2.9rem);
    height: clamp(2.6rem, 7vw, 2.9rem);
    filter: drop-shadow(0 12px 30px rgba(79, 195, 247, 0.25));
}

.brand-name {
    font-size: clamp(1.1rem, 2.2vw, 1.45rem);
}

.site-nav {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: clamp(0.5rem, 2.2vw, 1rem);
    font-size: 0.95rem;
    justify-content: center;
    width: 100%;
}

.site-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-weight: 500;
    position: relative;
    transition: color var(--transition);
    padding: clamp(0.35rem, 1vw, 0.45rem) clamp(0.55rem, 2vw, 0.8rem);
    border-radius: 999px;
}

.site-nav a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -0.4rem;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    transform-origin: left;
    transform: scaleX(0);
    transition: transform var(--transition);
}

.site-nav a:hover,
.site-nav a:focus-visible {
    color: var(--text-primary);
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
    transform: scaleX(1);
}

.hero {
    min-height: min(100svh, 840px);
    display: grid;
    place-items: center;
    padding: clamp(3.5rem, 8vh, 5.5rem) 0 clamp(4.5rem, 12vh, 7rem);
    width: 100%;
}

.hero-panel {
    position: relative;
    width: 100%;
    max-width: min(100%, var(--section-max));
    margin: 0 auto;
    padding: clamp(2.2rem, 5vw, 4rem);
    overflow: hidden;
    display: grid;
    gap: clamp(1.75rem, 4vw, 2.5rem);
    animation: floatHero 16s ease-in-out infinite;
}

.hero-panel::before {
    content: '';
    position: absolute;
    inset: 1px;
    border-radius: inherit;
    background: radial-gradient(circle at 25% 30%, rgba(79, 195, 247, 0.22), transparent 55%),
        radial-gradient(circle at 75% 20%, rgba(159, 140, 255, 0.18), transparent 60%),
        radial-gradient(circle at 50% 80%, rgba(128, 203, 196, 0.2), transparent 60%);
    opacity: 0.9;
    z-index: 0;
    filter: blur(0.8px);
}

.glass {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--glass-shadow);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
}

.waveform {
    position: absolute;
    inset: 0;
    pointer-events: none;
    opacity: 0.55;
    z-index: 1;
}

.waveform svg {
    width: 100%;
    height: 100%;
}

.waveform svg path {
    fill: none;
    stroke-width: 2.4;
    stroke-linecap: round;
    stroke: rgba(255, 255, 255, 0.4);
    filter: drop-shadow(0 0 22px rgba(79, 195, 247, 0.25));
    stroke-dasharray: 180;
    stroke-dashoffset: 180;
    animation: wavePulse 4s ease-in-out infinite;
}

.waveform .wave-2 {
    animation-delay: 0.6s;
}

.waveform .wave-3 {
    animation-delay: 1.2s;
}

@keyframes wavePulse {
    0% {
        stroke-dashoffset: 180;
        opacity: 0.1;
    }
    40% {
        opacity: 0.45;
    }
    100% {
        stroke-dashoffset: 0;
        opacity: 0.08;
    }
}

.hero-content {
    position: relative;
    z-index: 2;
    display: grid;
    gap: clamp(1.35rem, 3vw, 1.8rem);
}

.eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.3em;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.hero h1 {
    margin: 0;
    font-size: clamp(2.4rem, 7vw, 4.6rem);
    letter-spacing: -0.02em;
}

.hero-lede {
    font-size: clamp(1rem, 1.9vw, 1.4rem);
    color: var(--text-secondary);
    max-width: 52ch;
    line-height: 1.6;
    text-wrap: pretty;
}

.hero-actions {
    display: grid;
    gap: clamp(0.65rem, 2vw, 1rem);
}

.hero-actions .button {
    width: min(100%, 18rem);
}

.button {
    --btn-bg: transparent;
    --btn-border: rgba(255, 255, 255, 0.25);
    --btn-color: var(--text-primary);
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: clamp(0.45rem, 2vw, 0.65rem);
    padding: clamp(0.85rem, 2.6vw, 1rem) clamp(1.4rem, 4vw, 1.9rem);
    border-radius: 999px;
    border: 1px solid var(--btn-border);
    color: var(--btn-color);
    text-decoration: none;
    font-weight: 500;
    letter-spacing: clamp(0.06em, 0.35vw, 0.1em);
    font-size: clamp(0.75rem, 1.8vw, 0.9rem);
    text-transform: uppercase;
    background: var(--btn-bg);
    cursor: pointer;
    transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
}

.button::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: inherit;
    border: 1px solid rgba(255, 255, 255, 0.14);
    opacity: 0;
    transition: opacity var(--transition);
}

.button.primary {
    --btn-bg: linear-gradient(135deg, rgba(79, 195, 247, 0.22), rgba(128, 203, 196, 0.18));
    --btn-border: rgba(79, 195, 247, 0.65);
    box-shadow: 0 12px 30px rgba(79, 195, 247, 0.25);
}

.button.primary:hover,
.button.primary:focus-visible {
    box-shadow: 0 16px 36px rgba(79, 195, 247, 0.4);
}

.button.ghost {
    --btn-border: rgba(255, 255, 255, 0.18);
    --btn-color: var(--text-secondary);
}

.button.subtle {
    --btn-border: rgba(255, 255, 255, 0.1);
    --btn-color: var(--text-muted);
    padding-inline: 1.2rem;
    letter-spacing: 0.05em;
}

.button.neon {
    --btn-border: rgba(79, 195, 247, 0.7);
    box-shadow: 0 0 0 rgba(79, 195, 247, 0.4);
}

.button:hover,
.button:focus-visible {
    transform: translateY(-2px);
    box-shadow: 0 18px 40px var(--button-glow);
}

.button:hover::before,
.button:focus-visible::before {
    opacity: 1;
}

.button[data-icon="spark"]::after,
.button[data-icon="pause"]::after,
.button[data-icon="play"]::after,
.button[data-icon="sound"]::after {
    font-family: 'Lucida Console', monospace;
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    color: rgba(255, 255, 255, 0.6);
}

.button[data-icon="spark"]::after {
    content: '✶';
}

.button[data-icon="pause"]::after {
    content: '‖';
}

.button[data-icon="play"]::after {
    content: '▶';
}

.button[data-icon="sound"]::after {
    content: '♪';
}

.hero-meta {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1.2rem;
    margin: 0;
}

.hero-meta dt {
    font-size: clamp(0.65rem, 1.3vw, 0.75rem);
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 0.35rem;
}

.hero-meta dd {
    margin: 0;
    font-size: clamp(0.95rem, 1.6vw, 1.1rem);
    color: var(--text-secondary);
}

.section {
    padding-block: clamp(2.5rem, 5vw, 3.25rem);
    padding-inline: clamp(1.25rem, 4.5vw, 3rem);
    display: grid;
    gap: clamp(1.8rem, 3.5vw, 2.75rem);
    position: relative;
    z-index: 0;
}

.section::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-lg);
    background: linear-gradient(160deg, var(--surface-gradient-start), var(--surface-gradient-end));
    border: 1px solid var(--line-color);
    opacity: 0.85;
    z-index: -1;
    transition: opacity var(--transition);
}

.section:hover::before,
.section:focus-within::before {
    opacity: 1;
}

.section-heading {
    display: grid;
    gap: 1rem;
    align-items: flex-start;
}

.section-heading h2 {
    margin: 0;
    font-size: clamp(2.2rem, 5vw, 3rem);
    letter-spacing: -0.015em;
    text-wrap: balance;
}

.section-heading p {
    margin: 0;
    color: var(--text-secondary);
    max-width: clamp(35ch, 70vw, 60ch);
    line-height: 1.6;
    text-wrap: pretty;
}

.demo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(320px, 100%), 1fr));
    gap: clamp(1.4rem, 3vw, 2.4rem);
}

.demo-card {
    padding: clamp(1.6rem, 3vw, 2.4rem);
    display: grid;
    gap: clamp(1.4rem, 3vw, 2rem);
    position: relative;
    overflow: hidden;
}

.demo-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 15% 20%, var(--card-accent-a), transparent 55%),
        radial-gradient(circle at 82% 70%, var(--card-accent-b), transparent 60%);
    opacity: 0.9;
    pointer-events: none;
    z-index: -1;
}

.demo-card.glass {
    box-shadow: 0 32px 80px rgba(4, 9, 16, 0.55), 0 18px 40px rgba(79, 195, 247, 0.12);
}

.demo-card.glass:hover {
    box-shadow: 0 40px 90px rgba(4, 9, 16, 0.6), 0 22px 44px rgba(128, 203, 196, 0.16);
}

.card-header {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    justify-content: space-between;
    gap: clamp(0.75rem, 3vw, 1.1rem);
}

.card-header > div {
    flex: 1 1 220px;
    min-width: min(100%, 16rem);
}

.card-header h3 {
    margin: 0;
    font-size: clamp(1.1rem, 2.4vw, 1.4rem);
}

.card-subtitle {
    margin: 0.35rem 0 0;
    color: var(--text-muted);
    font-size: clamp(0.9rem, 1.6vw, 1rem);
}

.chip {
    padding: clamp(0.3rem, 1vw, 0.45rem) clamp(0.65rem, 2vw, 0.85rem);
    border-radius: 999px;
    background: var(--chip-bg);
    color: var(--text-secondary);
    font-size: clamp(0.65rem, 1vw, 0.75rem);
    letter-spacing: clamp(0.12em, 0.5vw, 0.18em);
    text-transform: uppercase;
    flex: 0 0 auto;
}

.chip.live {
    background: rgba(79, 195, 247, 0.18);
    color: var(--accent-primary);
}

textarea {
    width: 100%;
    min-height: clamp(220px, 45vh, 340px);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.14);
    background: rgba(10, 15, 24, 0.4);
    color: var(--text-primary);
    font-family: 'JetBrains Mono', 'Fira Code', SFMono-Regular, Consolas, monospace;
    font-size: clamp(0.9rem, 1.5vw, 1rem);
    line-height: 1.6;
    padding: clamp(1rem, 2.5vw, 1.4rem);
    resize: vertical;
    transition: border var(--transition), box-shadow var(--transition);
}

textarea:focus-visible {
    outline: none;
    border-color: rgba(79, 195, 247, 0.6);
    box-shadow: 0 0 0 3px rgba(79, 195, 247, 0.25);
}

.editor-actions {
    display: flex;
    flex-wrap: wrap;
    gap: clamp(0.65rem, 2vw, 0.9rem);
}

.editor-actions .button {
    flex: 1 1 180px;
    min-width: min(100%, 12rem);
}

.visual-stage {
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.18);
    background: linear-gradient(135deg, rgba(79, 195, 247, 0.16), rgba(128, 203, 196, 0.12));
    padding: clamp(1rem, 3vw, 1.5rem);
    display: flex;
    align-items: center;
    justify-content: center;
}

#visualizerCanvas {
    width: 100%;
    height: auto;
}

.node {
    fill: rgba(9, 13, 19, 0.55);
    stroke: rgba(255, 255, 255, 0.18);
    stroke-width: 1.6;
    filter: url(#glow);
}

.node.active {
    filter: drop-shadow(0 0 18px rgba(79, 195, 247, 0.65));
}

.node-label {
    fill: var(--text-primary);
    font-size: clamp(0.85rem, 1.6vw, 1rem);
    letter-spacing: 0.05em;
    text-anchor: middle;
    dominant-baseline: middle;
}

.arc {
    fill: none;
    stroke: url(#flowGradient);
    stroke-width: 6;
    stroke-linecap: round;
    opacity: 0.4;
}

.pulse {
    stroke-dasharray: 160;
    animation: pulse-path 1.2s ease forwards;
}

@keyframes pulse-path {
    from {
        stroke-dashoffset: 160;
    }
    to {
        stroke-dashoffset: 0;
    }
}

.live-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(140px, 100%), 1fr));
    gap: clamp(0.9rem, 2.5vw, 1.4rem);
    align-items: end;
}

.stat {
    display: grid;
    gap: 0.2rem;
}

.stat .label {
    font-size: clamp(0.65rem, 1.4vw, 0.8rem);
    text-transform: uppercase;
    letter-spacing: 0.25em;
    color: var(--text-muted);
}

.stat .value {
    font-size: clamp(1.4rem, 3.6vw, 2rem);
    font-weight: 600;
}

#sparkline {
    grid-column: 1 / -1;
    width: 100%;
    height: clamp(3rem, 6vw, 4.5rem);
}

.timeline-panel {
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.14);
    background: rgba(6, 9, 14, 0.35);
    padding: clamp(1rem, 2.5vw, 1.4rem);
    display: grid;
    gap: clamp(0.85rem, 2vw, 1.1rem);
}

.panel-heading {
    display: grid;
    gap: clamp(0.3rem, 1.2vw, 0.5rem);
}

.panel-heading h4 {
    margin: 0;
    font-size: clamp(1rem, 2vw, 1.2rem);
}

.panel-heading p {
    margin: 0;
    color: var(--text-muted);
    font-size: clamp(0.7rem, 1.4vw, 0.85rem);
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.timeline {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: clamp(0.85rem, 2vw, 1.1rem);
    max-height: clamp(260px, 50vh, 360px);
    overflow-y: auto;
    padding-right: clamp(0.25rem, 1vw, 0.5rem);
}

.timeline li {
    padding-left: 1.2rem;
    border-left: 2px solid rgba(79, 195, 247, 0.4);
    position: relative;
    display: grid;
    gap: clamp(0.3rem, 1.2vw, 0.5rem);
    transition: transform var(--transition);
}

.timeline li::before {
    content: '';
    position: absolute;
    left: -0.58rem;
    top: 0.45rem;
    width: 0.6rem;
    height: 0.6rem;
    border-radius: 50%;
    background: var(--accent-primary);
    box-shadow: 0 0 0 4px rgba(79, 195, 247, 0.18);
}

.timeline li[data-type='insert']::before {
    background: var(--accent-secondary);
    box-shadow: 0 0 0 4px rgba(128, 203, 196, 0.2);
}

.timeline li[data-type='delete']::before {
    background: var(--accent-tertiary);
    box-shadow: 0 0 0 4px rgba(244, 143, 177, 0.18);
}

.timeline li:hover {
    transform: translateX(6px);
}

.timeline .meta {
    display: flex;
    justify-content: space-between;
    font-size: clamp(0.7rem, 1.4vw, 0.85rem);
    color: var(--text-muted);
    gap: 1rem;
}

.timeline .diff {
    font-family: 'JetBrains Mono', 'Fira Code', SFMono-Regular, Consolas, monospace;
    font-size: clamp(0.8rem, 1.6vw, 0.95rem);
    display: grid;
    gap: clamp(0.25rem, 1vw, 0.4rem);
}

.timeline .diff em {
    color: var(--text-muted);
}

.muted {
    color: var(--text-muted);
}

.demo-controls {
    display: flex;
    flex-wrap: wrap;
    gap: clamp(0.75rem, 2.5vw, 1.1rem);
    justify-content: center;
}

.architecture {
    position: relative;
}

.architecture-diagram {
    display: grid;
    grid-template-columns: 1fr;
    align-items: center;
    gap: clamp(0.9rem, 2.5vw, 1.25rem);
    justify-items: center;
}

.arch-node {
    position: relative;
    text-align: center;
    padding: clamp(1.1rem, 2.5vw, 1.6rem) clamp(0.9rem, 2vw, 1.1rem);
    border-radius: var(--radius-md);
    background: rgba(12, 17, 25, 0.45);
    border: 1px solid rgba(255, 255, 255, 0.12);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-size: clamp(0.75rem, 1.4vw, 0.9rem);
    cursor: default;
    width: min(100%, 20rem);
}

.arch-node::after {
    content: attr(data-tooltip);
    position: absolute;
    left: 50%;
    bottom: calc(100% + 0.75rem);
    transform: translateX(-50%);
    background: rgba(12, 18, 26, 0.9);
    padding: clamp(0.55rem, 1.6vw, 0.75rem) clamp(0.75rem, 2vw, 1rem);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: var(--text-secondary);
    font-size: clamp(0.7rem, 1.3vw, 0.85rem);
    line-height: 1.4;
    width: min(260px, 80vw);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition), transform var(--transition);
}

.arch-node:hover::after,
.arch-node:focus-visible::after {
    opacity: 1;
    transform: translate(-50%, -6px);
}

.arch-link {
    display: none;
    height: 1px;
    background: linear-gradient(90deg, rgba(79, 195, 247, 0.4), rgba(128, 203, 196, 0.4));
    box-shadow: 0 0 20px rgba(79, 195, 247, 0.2);
    border-radius: 999px;
}

.architecture-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(260px, 100%), 1fr));
    gap: clamp(1.2rem, 3vw, 1.8rem);
}

.arch-card {
    padding: clamp(1.6rem, 3vw, 2.2rem);
    display: grid;
    gap: clamp(0.65rem, 2vw, 0.9rem);
}

.arch-card h3 {
    margin: 0;
    font-size: clamp(1.1rem, 2.2vw, 1.35rem);
}

.arch-card p {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.6;
    text-wrap: pretty;
}

.docs .section-heading {
    align-items: flex-start;
}

.tabs {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: clamp(0.5rem, 2vw, 0.75rem);
    background: rgba(9, 13, 19, 0.4);
    border-radius: 999px;
    padding: clamp(0.3rem, 1.2vw, 0.5rem);
    width: 100%;
}

.docs .tabs {
    background: linear-gradient(135deg, rgba(79, 195, 247, 0.12), rgba(159, 140, 255, 0.12));
    box-shadow: 0 12px 40px var(--tabs-glow);
}

.tab-button {
    padding: clamp(0.6rem, 1.5vw, 0.8rem) clamp(1.2rem, 3vw, 1.7rem);
    border-radius: 999px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    font-weight: 500;
    letter-spacing: clamp(0.12em, 0.4vw, 0.18em);
    text-transform: uppercase;
    cursor: pointer;
    transition: background var(--transition), color var(--transition);
    flex: 1 1 clamp(140px, 30vw, 220px);
}

.tab-button.active {
    background: rgba(79, 195, 247, 0.18);
    color: var(--accent-primary);
}

.tab-panels {
    position: relative;
}

.tab-panel {
    display: none;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.14);
    background: rgba(6, 9, 14, 0.35);
    padding: clamp(1.6rem, 3vw, 2.4rem);
    line-height: 1.7;
    color: var(--text-secondary);
    gap: clamp(0.9rem, 2.2vw, 1.4rem);
}

.tab-panel.active {
    display: grid;
}

.bullet-grid {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: clamp(0.7rem, 2vw, 1rem);
}

.bullet-grid li {
    position: relative;
    padding-left: clamp(1.4rem, 3vw, 1.8rem);
}

.bullet-grid li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.6rem;
    width: 0.7rem;
    height: 0.7rem;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    box-shadow: 0 0 18px rgba(79, 195, 247, 0.4);
}

.code-block {
    position: relative;
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.16);
    background: rgba(6, 9, 14, 0.75);
    padding: clamp(1.1rem, 2.5vw, 1.6rem);
    overflow-x: auto;
}

.copy-button {
    position: absolute;
    top: clamp(0.65rem, 2vw, 0.9rem);
    right: clamp(0.65rem, 2vw, 0.9rem);
    border: none;
    border-radius: 999px;
    padding: clamp(0.35rem, 1vw, 0.5rem) clamp(0.7rem, 2vw, 1rem);
    text-transform: uppercase;
    letter-spacing: clamp(0.12em, 0.5vw, 0.18em);
    font-size: clamp(0.6rem, 1.2vw, 0.75rem);
    cursor: pointer;
    background: rgba(79, 195, 247, 0.18);
    color: var(--accent-primary);
}

pre {
    margin: 0;
    font-family: 'JetBrains Mono', 'Fira Code', SFMono-Regular, Consolas, monospace;
    font-size: clamp(0.85rem, 1.8vw, 0.95rem);
    line-height: 1.6;
    white-space: pre;
    color: var(--text-primary);
}

.table-scroll {
    width: 100%;
    overflow-x: auto;
    overflow-y: auto;
    max-height: min(420px, 70vh);
    -webkit-overflow-scrolling: touch;
    border-radius: var(--radius-md);
    border: 1px solid var(--glass-border);
    background: rgba(6, 9, 14, 0.4);
}

.table-scroll table {
    width: 100%;
    border-collapse: collapse;
    min-width: clamp(32rem, 90vw, 56rem);
}

.table-scroll th,
.table-scroll td {
    padding: 0.6rem 0.8rem;
    text-align: left;
    font-size: clamp(0.8rem, 1.6vw, 0.95rem);
    color: var(--text-secondary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.table-scroll th {
    font-size: clamp(0.65rem, 1.2vw, 0.8rem);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-muted);
    position: sticky;
    top: 0;
    background: rgba(9, 13, 19, 0.9);
    backdrop-filter: blur(12px);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.toast {
    position: fixed;
    right: clamp(1.4rem, 5vw, 3rem);
    bottom: clamp(1.4rem, 5vw, 3rem);
    background: var(--toast-bg);
    color: var(--text-primary);
    border-radius: var(--radius-md);
    padding: 1rem 1.4rem;
    border: 1px solid rgba(255, 255, 255, 0.14);
    box-shadow: var(--glass-shadow);
    transition: transform var(--transition), opacity var(--transition);
    z-index: 100;
}

.toast.hidden {
    opacity: 0;
    transform: translateY(16px);
    pointer-events: none;
}

.toast.show {
    opacity: 1;
    transform: translateY(0);
}

.toast.error {
    border-color: rgba(244, 143, 177, 0.7);
    color: var(--accent-tertiary);
}

.site-footer {
    margin-top: clamp(3rem, 7vw, 5rem);
    display: grid;
    gap: clamp(1.25rem, 3vw, 1.8rem);
    justify-items: center;
    padding-block: clamp(2.4rem, 5vw, 3.4rem) clamp(2.8rem, 6vw, 3.8rem);
    padding-inline: var(--page-gutter);
    background: rgba(9, 13, 19, 0.68);
    backdrop-filter: blur(15px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: clamp(0.85rem, 1.2vw, 0.95rem);
    color: var(--text-muted);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: clamp(0.9rem, 2.5vw, 1.3rem);
    flex-wrap: wrap;
}

.footer-links a {
    display: inline-flex;
    width: clamp(2.3rem, 4vw, 2.75rem);
    height: clamp(2.3rem, 4vw, 2.75rem);
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.14);
    color: inherit;
    transition: transform var(--transition), border var(--transition);
}

.footer-links a svg {
    width: clamp(1.1rem, 2vw, 1.25rem);
    height: clamp(1.1rem, 2vw, 1.25rem);
    fill: currentColor;
}

.footer-links a:hover,
.footer-links a:focus-visible {
    transform: translateY(-2px);
    border-color: rgba(79, 195, 247, 0.6);
}

.footer-copy {
    display: grid;
    gap: 0.5rem;
    text-align: center;
    max-width: min(60ch, 100%);
}

.footer-copy p {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.6;
}

.footer-controls {
    display: flex;
    gap: clamp(0.65rem, 2vw, 0.9rem);
    flex-wrap: wrap;
    justify-content: center;
}

[data-animate] {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 600ms cubic-bezier(0.22, 1, 0.36, 1),
        transform 600ms cubic-bezier(0.22, 1, 0.36, 1);
}

[data-animate].revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive breakpoints */
@media (min-width: 480px) {
    .site-header {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        padding-inline: clamp(1.5rem, 6vw, 3rem);
    }

    .brand {
        width: auto;
        justify-content: flex-start;
    }

    .site-nav {
        gap: clamp(0.9rem, 2.6vw, 1.5rem);
        width: auto;
        justify-content: flex-end;
    }

    .hero-actions {
        grid-auto-flow: column;
        grid-auto-columns: minmax(0, 1fr);
    }

    .hero-actions .button {
        justify-content: center;
        width: 100%;
    }

    .editor-actions {
        justify-content: flex-start;
    }
}

@media (min-width: 768px) {
    .section-heading {
        grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr);
        gap: clamp(1rem, 3vw, 1.5rem);
        align-items: flex-start;
    }

    .hero {
        padding-inline: 0;
    }

    .hero-actions {
        gap: clamp(0.85rem, 2vw, 1.2rem);
    }

    .panel-heading {
        grid-template-columns: repeat(2, minmax(0, auto));
        align-items: baseline;
    }

    .demo-controls {
        justify-content: center;
    }

    .architecture-diagram {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (min-width: 1024px) {
    .demo-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        align-items: start;
    }

    .hero-actions {
        grid-auto-flow: column;
        grid-auto-columns: auto;
        justify-content: start;
    }

    .hero-actions .button {
        min-width: 0;
        width: auto;
    }

    .architecture-diagram {
        grid-template-columns: repeat(5, minmax(0, 1fr));
        gap: clamp(1rem, 2vw, 1.5rem);
    }

    .arch-link {
        display: block;
    }

    .site-footer {
        justify-items: stretch;
        text-align: left;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        align-items: center;
        padding-inline: clamp(2.5rem, 6vw, 4rem);
    }

    .footer-copy {
        text-align: left;
    }

    .footer-controls {
        justify-content: flex-end;
    }
}

@media (min-width: 1280px) {
    main > section {
        width: min(100%, var(--page-max));
    }

    .hero-panel {
        padding: clamp(2.8rem, 5vw, 4.6rem);
    }

    .section {
        padding-block: clamp(3rem, 5vw, 3.75rem);
        padding-inline: clamp(2rem, 4vw, 3.5rem);
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

@keyframes auroraShift {
    0% {
        transform: translate3d(-4%, -2%, 0) scale(1.04);
    }
    50% {
        transform: translate3d(3%, 2%, 0) scale(1.08);
    }
    100% {
        transform: translate3d(-4%, -3%, 0) scale(1.04);
    }
}

@keyframes floatHero {
    0%,
    100% {
        transform: translate3d(0, 0, 0);
    }
    50% {
        transform: translate3d(0, -12px, 0);
    }
}