@font-face {
    font-family: "Manrope";
    src: url("assets/Manrope-VariableFont_wght.ttf") format("truetype");
    font-style: normal;
    font-weight: 200 800;
}

:root {
    color-scheme: dark;
    --bg: #000000;
    --line: rgba(255, 255, 255, 0.12);
    --line-soft: rgba(255, 255, 255, 0.06);
    --text: #ece7dc;
    --muted: rgba(236, 231, 220, 0.58);
    --muted-strong: rgba(236, 231, 220, 0.8);
    --accent: #b8c6ff;
    --accent-soft: rgba(184, 198, 255, 0.16);
    --max-width: 1040px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    overflow-x: clip;
    font-family: "Manrope", sans-serif;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent 120px),
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 23px,
            rgba(255, 255, 255, 0.025) 23px,
            rgba(255, 255, 255, 0.025) 24px
        ),
        var(--bg);
    color: var(--text);
}

a,
button {
    color: inherit;
    font: inherit;
    text-decoration: none;
}

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

.page-shell {
    width: min(calc(100% - 32px), var(--max-width));
    margin: 0 auto;
    padding: 18px 0 32px;
}

.site-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 0 0 18px;
    border-bottom: 1px solid var(--line);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 0.73rem;
    font-weight: 650;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.brand-icon {
    width: 52px;
    height: 52px;
    object-fit: contain;
}

.site-nav {
    display: inline-flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    font-size: 0.8rem;
    letter-spacing: 0.01em;
}

.site-nav a,
.hero-repo-link,
.opensource-link,
.footer-nav a,
.footer-contact a {
    color: var(--muted);
    transition:
        color 160ms ease,
        opacity 160ms ease,
        transform 160ms ease;
}

.site-nav a:hover,
.site-nav a.is-active,
.hero-repo-link:hover,
.opensource-link:hover,
.footer-nav a:hover,
.footer-contact a:hover {
    color: var(--text);
}

.site-nav a::before,
.hero-repo-link::before,
.opensource-link::before,
.footer-nav a::before,
.footer-contact a::before {
    content: "[";
    opacity: 0.35;
    margin-right: 2px;
}

.site-nav a::after,
.hero-repo-link::after,
.opensource-link::after,
.footer-nav a::after,
.footer-contact a::after {
    content: "]";
    opacity: 0.35;
    margin-left: 2px;
}

main {
    padding: 0;
}

.section {
    padding: 22px 0;
}

.hero {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(220px, 0.9fr);
    align-items: center;
    gap: 22px;
    padding-top: 24px;
}

.hero-copy {
    width: 100%;
}

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

.eyebrow {
    margin: 0 0 10px;
    color: var(--accent);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: lowercase;
}

h1 {
    max-width: 14ch;
    font-size: clamp(2.8rem, 7vw, 5rem);
    line-height: 0.96;
    letter-spacing: -0.03em;
    font-weight: 650;
}

h2 {
    max-width: 18ch;
    font-size: clamp(1rem, 1.6vw, 1.34rem);
    line-height: 1.14;
    letter-spacing: -0.01em;
    font-weight: 650;
}

.hero-text,
.section-copy p:last-child,
.download-popup-panel p {
    color: var(--muted);
    line-height: 1.6;
}

.hero-text {
    max-width: 40rem;
    margin-top: 12px;
    font-size: 0.86rem;
}

.hero-repo-link {
    display: inline-block;
    margin-top: 14px;
    font-size: 0.72rem;
    font-weight: 650;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.download-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 18px;
}

.download-link,
.download-card {
    border: 1px dashed var(--line-soft);
    background: transparent;
    transition:
        border-color 160ms ease,
        color 160ms ease,
        transform 160ms ease,
        background 160ms ease;
}

.download-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 10px 14px;
    font-size: 0.76rem;
    font-weight: 650;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.download-link:hover,
.download-card:hover {
    border-color: var(--line);
    background: rgba(255, 255, 255, 0.015);
    transform: translateY(-1px);
}

.download-disabled,
.download-card-disabled {
    color: var(--muted);
    cursor: default;
}

.download-disabled:hover,
.download-card-disabled:hover {
    border-color: var(--line-soft);
    background: transparent;
    transform: none;
}

.hero-animation {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    min-height: 320px;
    padding: 24px;
    border: 1px solid var(--line);
    overflow: hidden;
}

.hero-animation::before,
.hero-animation::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.hero-animation::before {
    background:
        linear-gradient(var(--line-soft), var(--line-soft)) 50% 0 / 1px 100% no-repeat,
        linear-gradient(90deg, var(--line-soft), var(--line-soft)) 0 50% / 100% 1px no-repeat;
}

.hero-animation::after {
    inset: 14px;
    border: 1px dashed var(--line-soft);
}

.reel,
.tape {
    position: relative;
    z-index: 1;
    user-select: none;
    -webkit-user-drag: none;
}

.reel {
    width: min(27vw, 240px);
    min-width: 118px;
    animation: spin 6s linear infinite;
    transform-origin: center;
    filter: drop-shadow(0 0 18px rgba(184, 198, 255, 0.12));
}

.reel-left {
    transform: translateX(18px);
}

.reel-right {
    transform: translateX(-18px);
}

.tape {
    width: min(18vw, 170px);
    min-width: 118px;
    padding-top: 132px;
    opacity: 0.92;
}

.section-copy {
    display: grid;
    gap: 6px;
    margin-bottom: 14px;
}

.section-copy p:last-child {
    max-width: 68ch;
    font-size: 0.82rem;
}

.panel,
.effect-card,
.download-card {
    border: 1px dashed var(--line-soft);
    background: transparent;
}

.panel {
    overflow: hidden;
}

.screenshot-panel {
    padding: 12px;
}

.screenshot-panel img {
    width: 100%;
}

.effects-grid {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 14px;
}

.effect-card {
    flex: 0 0 auto;
    width: fit-content;
    padding: 12px;
}

.effect-card img {
    width: auto;
    height: 220px;
    max-width: min(100%, 100vw - 80px);
    object-fit: contain;
    background: transparent;
}

.download-section {
    padding-bottom: 12px;
}

.download-cards {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.download-card {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    min-height: 148px;
    padding: 16px;
    text-align: left;
}

.download-card span {
    display: block;
    color: var(--muted);
    font-size: 0.78rem;
}

.download-card strong {
    display: block;
    margin-top: 8px;
    font-size: clamp(1.2rem, 3vw, 1.7rem);
    font-weight: 650;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

.opensource-section {
    padding-top: 26px;
}

.opensource-links {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 12px;
    font-size: 0.72rem;
    letter-spacing: 0.06em;
    font-weight: 650;
    text-transform: uppercase;
}

.opensource-link-donate {
    color: var(--text);
}

.download-popup[hidden] {
    display: none;
}

.download-popup {
    position: fixed;
    inset: 0;
    z-index: 40;
    display: grid;
    place-items: center;
    padding: 24px;
}

.download-popup-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.72);
}

.download-popup-panel {
    position: relative;
    width: min(100%, 520px);
    padding: 24px;
    border: 1px solid var(--line);
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.025), rgba(255, 255, 255, 0.01)),
        #0a0a0a;
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
}

.download-popup-panel::after {
    content: "";
    position: absolute;
    inset: 12px;
    border: 1px dashed var(--line-soft);
    pointer-events: none;
}

.download-popup-eyebrow {
    margin: 0 0 10px;
    color: var(--accent);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: lowercase;
}

.download-popup-panel h3 {
    position: relative;
    z-index: 1;
    margin-bottom: 12px;
    max-width: 16ch;
    font-size: clamp(1.15rem, 3vw, 1.5rem);
    line-height: 1.14;
    letter-spacing: -0.01em;
    font-weight: 650;
}

.download-popup-panel p {
    position: relative;
    z-index: 1;
    margin-bottom: 12px;
    font-size: 0.82rem;
}

.download-popup-actions {
    position: relative;
    z-index: 1;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: flex-end;
    margin-top: 18px;
}

.download-popup-button {
    border: 1px dashed var(--line-soft);
    background: transparent;
    color: var(--text);
    padding: 10px 14px;
    cursor: pointer;
    font-size: 0.76rem;
    font-weight: 650;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    transition:
        border-color 160ms ease,
        color 160ms ease,
        transform 160ms ease,
        background 160ms ease;
}

.download-popup-button:hover {
    border-color: var(--line);
    background: rgba(255, 255, 255, 0.015);
    transform: translateY(-1px);
}

.download-popup-button-secondary {
    color: var(--muted);
}

.signal-section {
    width: 100vw;
    margin-left: calc(50% - 50vw);
    padding-top: 12px;
    overflow: hidden;
}

.signal-plot-frame {
    position: relative;
    height: clamp(170px, 22vw, 300px);
    overflow: hidden;
    border-top: 2px solid var(--line);
    border-bottom: 2px solid var(--line);
}

.signal-plot-canvas {
    position: absolute;
    top: -50%;
    left: 0;
    width: 100%;
    height: 200%;
    display: block;
}

.site-footer {
    width: min(calc(100% - 32px), var(--max-width));
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 18px 0 26px;
    border-top: 1px solid var(--line);
}

.footer-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--text);
    font-size: 0.73rem;
    font-weight: 650;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.footer-icon {
    width: 52px;
    height: 52px;
    object-fit: contain;
}

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

.footer-nav,
.footer-contact {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
    font-size: 0.72rem;
    letter-spacing: 0.06em;
    font-weight: 650;
    text-transform: uppercase;
}

.footer-contact-label {
    color: var(--muted);
    font-size: 0.68rem;
    letter-spacing: 0.08em;
    text-transform: lowercase;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

@media (max-width: 920px) {
    .hero {
        grid-template-columns: 1fr;
        align-items: start;
    }

    .hero-animation {
        min-height: 260px;
        max-width: 420px;
    }

    h1,
    h2,
    .download-popup-panel h3 {
        max-width: none;
    }

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

@media (max-width: 640px) {
    .page-shell,
    .site-footer {
        width: min(calc(100% - 24px), var(--max-width));
    }

    .page-shell {
        padding-top: 14px;
    }

    .site-header,
    .site-footer {
        flex-direction: column;
        align-items: flex-start;
    }

    .site-header {
        padding-bottom: 14px;
    }

    .site-nav,
    .footer-nav,
    .footer-contact {
        gap: 10px;
    }

    .hero {
        padding-top: 22px;
        gap: 18px;
    }

    .hero-animation {
        min-height: 220px;
        width: 100%;
        max-width: none;
        padding: 18px;
    }

    .reel {
        min-width: 92px;
    }

    .reel-left {
        transform: translateX(12px);
    }

    .reel-right {
        transform: translateX(-12px);
    }

    .tape {
        min-width: 78px;
        padding-top: 84px;
    }

    .download-row,
    .download-cards,
    .download-popup-actions {
        width: 100%;
    }

    .download-cards {
        grid-template-columns: 1fr;
    }

    .download-link,
    .download-popup-button {
        width: 100%;
        justify-content: center;
    }

    .effects-grid {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 10px;
    }

    .effect-card {
        width: auto;
        padding: 10px;
    }

    .effect-card img {
        width: 100%;
        height: 120px;
    }

    .signal-plot-frame {
        height: clamp(140px, 28vw, 190px);
    }
}