:root {
    color-scheme: dark;
    --bg: #050609;
    --panel: #0d1118;
    --panel-2: #111824;
    --line: rgba(255, 255, 255, 0.1);
    --text: #f5f7fb;
    --muted: #9aa6b5;
    --ice: #65e7ff;
    --ice-2: #a7f3ff;
    --lime: #d8ff7a;
    --danger: #ff7c7c;
    --radius: 8px;
    --shadow: 0 28px 90px rgba(0, 0, 0, 0.48);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    color: var(--text);
    background:
        radial-gradient(circle at 20% 0%, rgba(101, 231, 255, 0.13), transparent 34rem),
        linear-gradient(180deg, #07090e 0%, var(--bg) 42rem);
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    display: block;
    max-width: 100%;
}

button,
input,
textarea,
select {
    font: inherit;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem clamp(1rem, 4vw, 3rem);
    border-bottom: 1px solid var(--line);
    background: rgba(5, 6, 9, 0.82);
    backdrop-filter: blur(18px);
}

.brand,
.nav {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.brand {
    font-weight: 800;
    letter-spacing: 0;
}

.brand-mark {
    display: grid;
    width: 2rem;
    height: 2rem;
    place-items: center;
    border: 1px solid rgba(101, 231, 255, 0.42);
    border-radius: var(--radius);
    color: var(--ice);
    background: rgba(101, 231, 255, 0.08);
}

.nav {
    color: var(--muted);
    font-size: 0.95rem;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.nav a:hover,
.brand:hover {
    color: var(--ice-2);
}

.flash-wrap {
    position: fixed;
    z-index: 20;
    top: 5rem;
    right: 1rem;
    display: grid;
    gap: 0.5rem;
    max-width: min(24rem, calc(100vw - 2rem));
}

.flash {
    padding: 0.8rem 1rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(13, 17, 24, 0.95);
    box-shadow: var(--shadow);
}

.flash-success {
    border-color: rgba(216, 255, 122, 0.45);
}

.flash-error {
    border-color: rgba(255, 124, 124, 0.55);
}

.hero,
.product-hero {
    width: min(1180px, calc(100% - 2rem));
    margin: 0 auto;
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(19rem, 0.7fr);
    gap: clamp(2rem, 7vw, 5rem);
    align-items: center;
    padding: clamp(3rem, 8vw, 6rem) 0 3rem;
}

.hero-copy,
.product-copy {
    display: grid;
    gap: 1.1rem;
}

.eyebrow {
    margin: 0;
    color: var(--ice);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

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

h1 {
    margin-bottom: 0;
    max-width: 12ch;
    font-size: clamp(3rem, 9vw, 7.25rem);
    line-height: 0.88;
    letter-spacing: 0;
}

h2 {
    margin-bottom: 0.65rem;
    font-size: clamp(1.55rem, 3vw, 2.6rem);
    line-height: 1;
}

h3 {
    margin-bottom: 0.35rem;
}

.hero-copy p,
.product-copy p,
.lead {
    max-width: 42rem;
    color: var(--muted);
    font-size: clamp(1rem, 2vw, 1.15rem);
    line-height: 1.7;
}

.hero-actions,
.button-row,
.card-row,
.table-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem;
}

.button,
button.button,
.table-actions button {
    display: inline-flex;
    min-height: 2.9rem;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    border: 1px solid transparent;
    border-radius: var(--radius);
    padding: 0.78rem 1rem;
    cursor: pointer;
    font-weight: 800;
    transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.button:hover,
.table-actions button:hover {
    transform: translateY(-1px);
}

.button-primary {
    color: #031116;
    background: linear-gradient(135deg, var(--ice), var(--lime));
}

.button-ghost,
.table-actions button {
    color: var(--text);
    border-color: var(--line);
    background: rgba(255, 255, 255, 0.04);
}

.button-wide {
    width: 100%;
}

.cover-tilt {
    position: relative;
    display: block;
    border-radius: var(--radius);
    transform-style: preserve-3d;
    transform: perspective(1100px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg));
    transition: transform 180ms ease, box-shadow 180ms ease;
    box-shadow: var(--shadow);
}

.cover-tilt::before {
    content: "";
    position: absolute;
    inset: -1px;
    z-index: -1;
    border-radius: inherit;
    background: linear-gradient(135deg, rgba(101, 231, 255, 0.65), rgba(216, 255, 122, 0.1), rgba(255, 255, 255, 0.12));
    transform: translateZ(-1px);
}

.cover-tilt::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: radial-gradient(circle at var(--mx, 50%) var(--my, 50%), rgba(255, 255, 255, 0.26), transparent 26rem);
    mix-blend-mode: screen;
    opacity: 0.8;
    pointer-events: none;
}

.cover-tilt img {
    aspect-ratio: 1 / 1;
    width: 100%;
    border-radius: inherit;
    object-fit: cover;
}

.hero-cover {
    max-width: 31rem;
    justify-self: end;
}

.page-shell {
    width: min(1120px, calc(100% - 2rem));
    margin: 0 auto;
    padding: 2rem 0 5rem;
}

.page-shell.narrow {
    width: min(620px, calc(100% - 2rem));
    padding-top: clamp(3rem, 8vw, 6rem);
}

.about-hero,
.editorial-hero {
    width: min(1180px, calc(100% - 2rem));
    margin: 0 auto;
    padding: clamp(3rem, 8vw, 6rem) 0 3rem;
}

.about-hero {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(17rem, 0.55fr);
    gap: clamp(2rem, 7vw, 5rem);
    align-items: center;
}

.about-copy {
    display: grid;
    gap: 1.1rem;
}

.about-copy p,
.editorial-hero p,
.about-statement p,
.article-card p,
.article-header p,
.article-body p,
.article-body li,
.article-cta p,
.answer-box p,
.faq-section p,
.ecosystem-card strong,
.value-list span {
    color: var(--muted);
    line-height: 1.7;
}

.about-cover {
    max-width: 27rem;
    justify-self: end;
}

.about-shell,
.article-grid {
    display: grid;
    gap: 1rem;
}

.about-statement {
    display: grid;
    gap: 0.9rem;
}

.about-statement h2,
.editorial-hero h1,
.article-header h1 {
    max-width: 13ch;
}

.ecosystem-section {
    padding: 1.5rem 0;
}

.ecosystem-grid,
.value-list,
.article-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
}

.ecosystem-card,
.article-card,
.value-list div,
.article-cta {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background:
        linear-gradient(135deg, rgba(101, 231, 255, 0.07), rgba(255, 255, 255, 0.02)),
        rgba(13, 17, 24, 0.78);
}

.ecosystem-card,
.value-list div {
    display: grid;
    gap: 0.55rem;
    min-height: 11rem;
    padding: 1rem;
}

.ecosystem-card span,
.article-meta,
.value-list strong {
    color: var(--ice);
    font-size: 0.78rem;
    font-weight: 900;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.ecosystem-card strong,
.value-list span {
    font-size: 1.02rem;
}

.editorial-hero {
    width: min(980px, calc(100% - 2rem));
}

.editorial-hero h1 {
    margin: 0.2rem 0 1rem;
}

.editorial-hero p {
    max-width: 42rem;
    font-size: clamp(1rem, 2vw, 1.15rem);
}

.article-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.article-card {
    display: flex;
    min-height: 20rem;
    flex-direction: column;
    justify-content: space-between;
    gap: 1.5rem;
    padding: clamp(1rem, 3vw, 1.35rem);
}

.article-card h2 {
    margin: 0.75rem 0;
    font-size: clamp(1.35rem, 2.4vw, 2.1rem);
    line-height: 1.05;
}

.article-link,
.back-link {
    color: var(--ice-2);
    font-weight: 900;
}

.seo-band {
    margin-top: 1rem;
}

.seo-band p {
    max-width: 46rem;
    color: var(--muted);
    line-height: 1.7;
}

.article-shell {
    width: min(880px, calc(100% - 2rem));
    margin: 0 auto;
    padding: clamp(2.5rem, 7vw, 5rem) 0 5rem;
}

.back-link {
    display: inline-flex;
    margin-bottom: 2rem;
}

.article-header {
    display: grid;
    gap: 1rem;
    margin-bottom: clamp(2rem, 5vw, 3.5rem);
}

.article-header h1 {
    font-size: clamp(2.55rem, 8vw, 5.25rem);
    line-height: 0.95;
}

.article-header p {
    max-width: 43rem;
    font-size: 1.1rem;
}

.answer-box {
    margin-bottom: clamp(2rem, 5vw, 3rem);
    border: 1px solid rgba(101, 231, 255, 0.26);
    border-radius: var(--radius);
    padding: clamp(1rem, 3vw, 1.35rem);
    background:
        linear-gradient(135deg, rgba(101, 231, 255, 0.1), rgba(216, 255, 122, 0.04)),
        rgba(13, 17, 24, 0.78);
}

.answer-box span {
    display: block;
    margin-bottom: 0.6rem;
    color: var(--ice);
    font-size: 0.78rem;
    font-weight: 900;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.answer-box p {
    margin-bottom: 0;
    font-size: 1.04rem;
}

.article-body {
    display: grid;
    gap: 2rem;
}

.article-body h2 {
    max-width: 18ch;
    font-size: clamp(1.4rem, 3vw, 2.1rem);
}

.article-body p,
.article-body ul {
    margin-bottom: 0;
}

.article-body ul {
    display: grid;
    gap: 0.75rem;
    padding-left: 1.2rem;
}

.faq-section {
    display: grid;
    gap: 0.75rem;
    margin-top: clamp(2rem, 5vw, 3.5rem);
}

.faq-section details {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(13, 17, 24, 0.78);
}

.faq-section summary {
    padding: 1rem;
    cursor: pointer;
    font-weight: 900;
}

.faq-section p {
    margin: 0;
    padding: 0 1rem 1rem;
}

.article-cta {
    display: grid;
    grid-template-columns: 11rem minmax(0, 1fr);
    gap: 1rem;
    align-items: center;
    margin-top: clamp(2rem, 5vw, 3.5rem);
    padding: 1rem;
}

.article-cta img {
    width: 100%;
    aspect-ratio: 1 / 1;
    border-radius: var(--radius);
    object-fit: cover;
}

.article-cta h2 {
    margin-bottom: 0.4rem;
}

.section-heading {
    margin-bottom: 1.25rem;
}

.kit-grid,
.testimonial-grid,
.metric-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
}

.kit-card,
.panel,
.content-band,
.metric,
.policy-note,
.library-item,
.preview-track,
.wave-player {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(13, 17, 24, 0.78);
}

.kit-card {
    overflow: hidden;
}

.kit-card-image img {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
}

.kit-card-body,
.panel,
.content-band,
.metric,
.policy-note {
    padding: clamp(1rem, 3vw, 1.35rem);
}

.kit-card-body p,
.muted,
.policy-note span {
    color: var(--muted);
    line-height: 1.6;
}

.card-row {
    justify-content: space-between;
    color: var(--ice-2);
}

.product-hero {
    grid-template-columns: minmax(17rem, 0.68fr) minmax(0, 0.9fr);
}

.product-cover {
    max-width: 34rem;
}

.price-line {
    font-size: clamp(2rem, 5vw, 4rem);
    font-weight: 900;
    color: var(--ice-2);
}

.price-stack {
    display: grid;
    gap: 0.15rem;
    margin: 0.25rem 0 0.15rem;
}

.original-price {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.45rem;
    color: var(--muted);
    font-size: 0.9rem;
}

.original-price s {
    color: rgba(242, 255, 255, 0.58);
    font-weight: 800;
    text-decoration-color: rgba(255, 255, 255, 0.48);
}

.original-price b {
    border: 1px solid rgba(216, 255, 122, 0.34);
    border-radius: 999px;
    padding: 0.18rem 0.5rem;
    color: var(--lime);
    font-size: 0.74rem;
    line-height: 1;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    background: rgba(216, 255, 122, 0.08);
}

.buy-box {
    display: grid;
    gap: 0.75rem;
    max-width: 24rem;
}

.buy-box span {
    color: var(--muted);
    font-size: 0.9rem;
}

.product-sections {
    display: grid;
    gap: 1rem;
}

.split {
    display: grid;
    grid-template-columns: 0.8fr 1fr;
    gap: 2rem;
}

.detail-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.8rem;
    margin: 0;
}

.detail-grid div {
    padding: 1rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.03);
}

.detail-grid dt {
    color: var(--muted);
    font-size: 0.82rem;
}

.detail-grid dd {
    margin: 0.25rem 0 0;
    font-weight: 800;
}

.included-band {
    display: grid;
    gap: 1.5rem;
}

.included-heading {
    max-width: 48rem;
    margin-bottom: 0;
}

.included-heading p:not(.eyebrow) {
    color: var(--muted);
    font-size: 1.05rem;
    line-height: 1.7;
}

.included-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.85rem;
    margin: 0;
}

.included-grid div {
    min-height: 9rem;
    padding: 1rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background:
        linear-gradient(135deg, rgba(101, 231, 255, 0.07), rgba(255, 255, 255, 0.02)),
        rgba(255, 255, 255, 0.025);
}

.included-grid dt {
    color: var(--ice);
    font-size: 0.78rem;
    font-weight: 900;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.included-grid dd {
    margin: 0.65rem 0 0;
    color: var(--text);
    font-size: clamp(1.05rem, 2vw, 1.35rem);
    font-weight: 900;
    line-height: 1.18;
}

.included-checklist {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.6rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.included-checklist li {
    position: relative;
    min-height: 3.2rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 0.85rem 0.9rem 0.85rem 2.45rem;
    color: var(--text);
    font-size: 0.92rem;
    font-weight: 900;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    background:
        linear-gradient(135deg, rgba(101, 231, 255, 0.09), rgba(216, 255, 122, 0.035)),
        rgba(255, 255, 255, 0.025);
}

.included-checklist li::before {
    content: "✓";
    position: absolute;
    left: 0.85rem;
    top: 50%;
    display: grid;
    width: 1rem;
    height: 1rem;
    place-items: center;
    border-radius: 50%;
    color: #031116;
    font-size: 0.72rem;
    line-height: 1;
    transform: translateY(-50%);
    background: linear-gradient(135deg, var(--ice), var(--lime));
}

.included-count-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0.6rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.included-count-grid li {
    position: relative;
    display: grid;
    align-content: center;
    gap: 0.08rem;
    min-height: 3.8rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 0.82rem 0.7rem 0.82rem 2.45rem;
    background:
        linear-gradient(135deg, rgba(101, 231, 255, 0.09), rgba(216, 255, 122, 0.035)),
        rgba(255, 255, 255, 0.025);
}

.included-count-grid li::before {
    content: "✓";
    position: absolute;
    left: 0.85rem;
    top: 50%;
    display: grid;
    width: 1rem;
    height: 1rem;
    place-items: center;
    border-radius: 50%;
    color: #031116;
    font-size: 0.72rem;
    line-height: 1;
    transform: translateY(-50%);
    background: linear-gradient(135deg, var(--ice), var(--lime));
}

.included-count-grid strong {
    color: var(--ice-2);
    font-size: clamp(1.15rem, 2vw, 1.65rem);
    line-height: 1;
}

.included-count-grid span {
    color: var(--text);
    font-size: 0.72rem;
    font-weight: 900;
    letter-spacing: 0.08em;
    line-height: 1.2;
    text-transform: uppercase;
}

.preview-list,
.library-list,
.stack-form,
.dynamic-list {
    display: grid;
    gap: 1rem;
}

.preview-track,
.wave-player,
.library-item {
    display: grid;
    grid-template-columns: minmax(11rem, 1fr) minmax(16rem, 1.2fr);
    align-items: center;
    gap: 1rem;
    padding: 1rem;
}

.preview-track span {
    display: block;
    color: var(--muted);
    margin-top: 0.2rem;
}

audio {
    width: 100%;
}

.wave-player {
    grid-template-columns: 3rem minmax(9rem, 0.62fr) minmax(16rem, 1fr) minmax(6.5rem, 0.28fr) 3rem;
    background:
        linear-gradient(135deg, rgba(101, 231, 255, 0.08), rgba(255, 255, 255, 0.02)),
        rgba(13, 17, 24, 0.78);
}

.wave-meta span {
    display: block;
    color: var(--muted);
    margin-top: 0.2rem;
}

.wave-play,
.video-play {
    display: grid;
    width: 3rem;
    height: 3rem;
    place-items: center;
    border: 1px solid rgba(101, 231, 255, 0.35);
    border-radius: 50%;
    color: #031116;
    background: linear-gradient(135deg, var(--ice), var(--lime));
    cursor: pointer;
}

.wave-play span,
.video-play span {
    width: 0;
    height: 0;
    margin-left: 0.18rem;
    border-top: 0.48rem solid transparent;
    border-bottom: 0.48rem solid transparent;
    border-left: 0.72rem solid #031116;
}

.wave-player.is-playing .wave-play span {
    width: 0.68rem;
    height: 0.85rem;
    margin-left: 0;
    border: 0;
    border-left: 0.22rem solid #031116;
    border-right: 0.22rem solid #031116;
}

.wave-canvas {
    width: 100%;
    height: 4.2rem;
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.035);
    cursor: pointer;
}

.wave-time {
    color: var(--muted);
    font-variant-numeric: tabular-nums;
    text-align: right;
}

.volume-slider {
    display: block;
}

.volume-slider input {
    width: 100%;
    min-width: 6rem;
    cursor: pointer;
}

.video-band {
    overflow: hidden;
}

.square-carousel {
    grid-auto-columns: clamp(11rem, 23vw, 18rem);
}

.video-carousel-shell {
    position: relative;
    margin-inline: calc(clamp(1.6rem, 4vw, 3.25rem) * -1);
    padding-inline: clamp(1.6rem, 4vw, 3.25rem);
}

.video-showcase {
    display: grid;
    grid-template-columns: minmax(15rem, 20rem) minmax(0, 1fr);
    gap: clamp(1rem, 4vw, 2.5rem);
    align-items: end;
}

.video-carousel {
    display: grid;
    grid-auto-columns: minmax(15rem, 20rem);
    grid-auto-flow: column;
    gap: clamp(0.6rem, 2vw, 1rem);
    overflow-x: auto;
    overflow-y: hidden;
    padding: 1.45rem clamp(35%, 38vw, 42%) 1.1rem;
    scrollbar-width: none;
    scroll-snap-type: x mandatory;
}

.video-carousel::-webkit-scrollbar {
    display: none;
}

.video-carousel.is-single {
    grid-auto-columns: minmax(15rem, 20rem);
    overflow: visible;
    padding-inline: 0;
}

.promo-video-card {
    scroll-snap-align: center;
}

.square-video-card {
    opacity: 0.5;
    transform: scale(0.82);
    transform-origin: center;
    transition:
        opacity 180ms ease,
        transform 220ms ease,
        filter 220ms ease;
    filter: saturate(0.78) brightness(0.86);
}

.square-video-card.is-active {
    position: relative;
    z-index: 2;
    opacity: 1;
    transform: scale(1.08);
    filter: none;
}

.square-video-card h3 {
    margin: 0.8rem 0 0;
    color: var(--ice-2);
    font-size: 0.98rem;
    letter-spacing: 0;
    text-align: center;
}

.square-video-frame {
    position: relative;
    overflow: hidden;
    aspect-ratio: 1 / 1;
    border: 1px solid rgba(101, 231, 255, 0.28);
    border-radius: var(--radius);
    background:
        radial-gradient(circle at 50% 18%, rgba(101, 231, 255, 0.18), transparent 12rem),
        var(--panel);
    box-shadow: var(--shadow);
}

.square-video-frame::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.02), rgba(0, 0, 0, 0.34));
    pointer-events: none;
}

.square-video-frame video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.phone-video-frame {
    position: relative;
    overflow: hidden;
    aspect-ratio: 9 / 16;
    border: 1px solid rgba(101, 231, 255, 0.28);
    border-radius: var(--radius);
    background:
        radial-gradient(circle at 50% 18%, rgba(101, 231, 255, 0.18), transparent 13rem),
        var(--panel);
    box-shadow: var(--shadow);
}

.phone-video-frame::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.02), rgba(0, 0, 0, 0.36));
    pointer-events: none;
}

.phone-video-frame video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-play {
    position: absolute;
    z-index: 2;
    left: 50%;
    top: 50%;
    width: 4rem;
    height: 4rem;
    transform: translate(-50%, -50%);
    box-shadow: 0 18px 55px rgba(0, 0, 0, 0.4);
}

.promo-video-card.is-playing .video-play {
    opacity: 0;
    pointer-events: none;
}

.promo-video-card h3 {
    margin: 0.8rem 0 0;
}

.carousel-arrow {
    position: absolute;
    z-index: 4;
    top: 50%;
    display: grid;
    width: clamp(2.5rem, 5vw, 3.1rem);
    height: clamp(2.5rem, 5vw, 3.1rem);
    place-items: center;
    border: 1px solid rgba(101, 231, 255, 0.28);
    border-radius: 50%;
    color: var(--ice-2);
    font-size: 2rem;
    line-height: 1;
    transform: translateY(-50%);
    background:
        linear-gradient(135deg, rgba(8, 22, 27, 0.9), rgba(6, 9, 12, 0.88)),
        var(--panel);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.38);
    cursor: pointer;
}

.carousel-arrow:hover {
    border-color: rgba(216, 255, 122, 0.5);
    color: var(--lime);
}

.carousel-arrow-left {
    left: clamp(0.25rem, 1.5vw, 1rem);
}

.carousel-arrow-right {
    right: clamp(0.25rem, 1.5vw, 1rem);
}

.video-copy {
    max-width: 34rem;
    padding: clamp(1rem, 4vw, 2rem);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background:
        linear-gradient(135deg, rgba(101, 231, 255, 0.08), rgba(216, 255, 122, 0.035)),
        rgba(255, 255, 255, 0.025);
}

.video-copy span {
    display: block;
    margin-bottom: 0.8rem;
    color: var(--ice);
    font-size: 0.8rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.12em;
}

.video-copy strong {
    display: block;
    max-width: 13ch;
    font-size: clamp(2rem, 5vw, 4.2rem);
    line-height: 0.95;
}

.video-copy p {
    margin: 1rem 0 0;
    color: var(--muted);
    line-height: 1.7;
}

.file-story p {
    color: var(--muted);
    line-height: 1.75;
}

.folder-accordion {
    display: grid;
    gap: 0.75rem;
}

.folder-group {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.025);
    overflow: hidden;
}

.folder-group summary {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    cursor: pointer;
    list-style: none;
}

.folder-group summary::-webkit-details-marker {
    display: none;
}

.folder-icon {
    width: 1.6rem;
    height: 1.15rem;
    border: 1px solid rgba(101, 231, 255, 0.45);
    border-radius: 4px;
    background: linear-gradient(135deg, rgba(101, 231, 255, 0.26), rgba(216, 255, 122, 0.08));
    box-shadow: inset 0 0 18px rgba(101, 231, 255, 0.15);
}

.folder-group em {
    color: var(--muted);
    font-size: 0.85rem;
    font-style: normal;
}

.folder-children {
    display: grid;
    gap: 0.55rem;
    padding: 0 1rem 1rem 3.35rem;
}

.folder-child {
    border-left: 1px solid rgba(101, 231, 255, 0.35);
    padding-left: 0.85rem;
}

.folder-child span {
    font-weight: 800;
    color: var(--ice-2);
}

.folder-child p {
    margin: 0.25rem 0 0;
    color: var(--muted);
    line-height: 1.55;
}

.pill-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
}

.pill {
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 0.55rem 0.8rem;
    color: var(--ice-2);
    background: rgba(101, 231, 255, 0.07);
}

.testimonial {
    margin: 0;
    padding: 1rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
}

.testimonial img {
    width: 3.4rem;
    height: 3.4rem;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 1rem;
}

.testimonial p {
    color: var(--text);
    line-height: 1.6;
}

.testimonial cite {
    color: var(--muted);
    font-style: normal;
}

.testimonial-video-grid {
    display: grid;
    gap: 1rem;
    margin-bottom: 1rem;
}

.testimonial-video-card {
    display: grid;
    grid-template-columns: minmax(14rem, 20rem) minmax(0, 1fr);
    gap: clamp(1rem, 4vw, 2rem);
    align-items: end;
}

.testimonial-video-copy {
    display: grid;
    gap: 0.8rem;
    padding: clamp(1rem, 4vw, 2rem);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background:
        linear-gradient(135deg, rgba(101, 231, 255, 0.08), rgba(216, 255, 122, 0.035)),
        rgba(255, 255, 255, 0.025);
}

.testimonial-video-copy span {
    color: var(--ice);
    font-size: 0.78rem;
    font-weight: 900;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.testimonial-video-copy strong {
    max-width: 13ch;
    font-size: clamp(2rem, 5vw, 4rem);
    line-height: 0.95;
}

.stack-form label,
.form-section label {
    display: grid;
    gap: 0.45rem;
    color: var(--muted);
    font-weight: 700;
}

input,
textarea,
select {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 0.8rem 0.9rem;
    color: var(--text);
    background: rgba(255, 255, 255, 0.04);
}

textarea {
    resize: vertical;
}

.library-item {
    grid-template-columns: 5rem 1fr auto;
}

.library-item img {
    width: 5rem;
    height: 5rem;
    border-radius: var(--radius);
    object-fit: cover;
}

.success-panel {
    text-align: left;
}

.admin-shell {
    display: grid;
    grid-template-columns: 14rem minmax(0, 1fr);
    gap: 1rem;
    width: min(1320px, calc(100% - 2rem));
    margin: 0 auto;
    padding: 2rem 0 5rem;
}

.admin-side {
    position: sticky;
    top: 5.5rem;
    display: grid;
    align-self: start;
    gap: 0.4rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 0.65rem;
    background: rgba(13, 17, 24, 0.78);
}

.admin-side a {
    border-radius: 6px;
    padding: 0.7rem 0.8rem;
    color: var(--muted);
}

.admin-side a.active,
.admin-side a:hover {
    color: var(--text);
    background: rgba(255, 255, 255, 0.06);
}

.admin-main {
    min-width: 0;
}

.admin-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.admin-top.compact {
    margin-bottom: 0.5rem;
}

.metric-grid {
    margin-bottom: 1rem;
}

.metric span {
    color: var(--muted);
}

.metric strong {
    display: block;
    margin-top: 0.35rem;
    font-size: 2rem;
}

.admin-table-wrap {
    overflow-x: auto;
    border: 1px solid var(--line);
    border-radius: var(--radius);
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    background: rgba(13, 17, 24, 0.78);
}

.admin-table th,
.admin-table td {
    border-bottom: 1px solid var(--line);
    padding: 0.9rem;
    text-align: left;
    vertical-align: middle;
}

.admin-table th {
    color: var(--muted);
    font-size: 0.82rem;
    text-transform: uppercase;
}

.admin-table tr:last-child td {
    border-bottom: 0;
}

.table-actions {
    justify-content: flex-end;
}

.table-actions form {
    margin: 0;
}

.table-actions button {
    min-height: 2.3rem;
    color: var(--danger);
}

.status-pill {
    display: inline-flex;
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 0.25rem 0.55rem;
    color: var(--ice-2);
}

.form-section {
    display: grid;
    gap: 1rem;
    margin-bottom: 1rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 1rem;
    background: rgba(13, 17, 24, 0.78);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.compact-table input {
    min-width: 8rem;
}

.dynamic-row {
    display: grid;
    grid-template-columns: minmax(8rem, 1fr) minmax(8rem, 1fr) minmax(12rem, 1fr);
    gap: 0.75rem;
}

.video-row {
    grid-template-columns: minmax(8rem, 1fr) minmax(8rem, 0.8fr) minmax(12rem, 1fr) minmax(12rem, 1fr);
}

.check-grid {
    display: grid;
    gap: 0.5rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 1rem;
}

.check-grid label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.check-grid input {
    width: auto;
}

.site-footer {
    display: grid;
    grid-template-columns: minmax(14rem, 1fr) auto auto;
    align-items: start;
    gap: 1rem;
    padding: 2rem clamp(1rem, 4vw, 3rem);
    border-top: 1px solid var(--line);
    color: var(--muted);
}

.footer-brand,
.footer-links {
    display: grid;
    gap: 0.45rem;
}

.footer-brand strong {
    color: var(--text);
}

.footer-links a:hover {
    color: var(--ice-2);
}

@media (max-width: 860px) {
    .hero,
    .product-hero,
    .about-hero,
    .split,
    .video-showcase,
    .admin-shell {
        grid-template-columns: 1fr;
    }

    .hero-cover {
        justify-self: stretch;
        max-width: none;
    }

    .kit-grid,
    .testimonial-grid,
    .metric-grid,
    .form-grid,
    .detail-grid,
    .included-grid,
    .included-checklist,
    .ecosystem-grid,
    .value-list,
    .article-grid {
        grid-template-columns: 1fr;
    }

    .included-count-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .about-cover {
        justify-self: stretch;
        max-width: none;
    }

    .preview-track,
    .wave-player,
    .library-item,
    .testimonial-video-card,
    .dynamic-row {
        grid-template-columns: 1fr;
    }

    .volume-slider {
        width: 100%;
    }

    .wave-time {
        text-align: left;
    }

    .library-item img {
        width: 100%;
        height: auto;
        aspect-ratio: 16 / 9;
    }

    .admin-side {
        position: static;
        display: flex;
        overflow-x: auto;
    }

    .article-cta {
        grid-template-columns: 1fr;
    }

    .article-cta img {
        max-width: 16rem;
    }
}

@media (max-width: 560px) {
    .site-header,
    .site-footer,
    .admin-top {
        align-items: flex-start;
        flex-direction: column;
    }

    .nav {
        width: 100%;
        justify-content: flex-start;
    }

    h1 {
        font-size: clamp(2.7rem, 18vw, 4rem);
    }

    .video-carousel-shell {
        margin-inline: -1rem;
        padding-inline: 1rem;
    }

    .square-carousel {
        grid-auto-columns: minmax(11rem, 74vw);
    }

    .video-carousel {
        gap: 0.75rem;
        padding-inline: 13vw;
    }

    .square-video-card {
        opacity: 0.42;
        transform: scale(0.78);
    }

    .square-video-card.is-active {
        transform: scale(1);
    }

    .square-video-card:not(.is-active) h3 {
        opacity: 0;
    }

    .carousel-arrow {
        top: 44%;
        width: 2.35rem;
        height: 2.35rem;
        font-size: 1.75rem;
    }

    .site-footer {
        grid-template-columns: 1fr;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition: none !important;
    }
}