/* Luciola site. Colors and type from docs/luciola-brand-konzept.md, same tokens as the app
   (src/Luciola.App/Themes/Luciola.xaml). True black by default, light palette on request. */

@font-face {
    font-family: "Inter";
    src: url("../fonts/Inter.ttf") format("truetype");
    font-weight: 100 900;
    font-display: swap;
}

@font-face {
    font-family: "Manrope";
    src: url("../fonts/Manrope.ttf") format("truetype");
    font-weight: 200 800;
    font-display: swap;
}

@font-face {
    font-family: "JetBrains Mono";
    src: url("../fonts/JetBrainsMono.ttf") format("truetype");
    font-weight: 100 800;
    font-display: swap;
}

:root {
    --night: #000000;
    --nightshade: #130B1C;
    --dusk: #261A33;
    --firefly: #6FC09E;
    --glow: #BDF9D9;
    --wing: #2D746C;
    --ivory: #E9EEEB;
    --fog: #948C9C;
    --ember: #F2B24C;
    --on-accent: #000000;
    --brand-gradient: linear-gradient(135deg, #763062 0%, #3D1747 45%, #28076A 100%);
    --on-brand: #E9EEEB;
    --on-brand-accent: #6FC09E;

    --font-text: "Inter", "Segoe UI Variable Text", "Segoe UI", system-ui, sans-serif;
    --font-display: "Manrope", "Inter", "Segoe UI Variable Display", system-ui, sans-serif;
    --font-mono: "JetBrains Mono", "Cascadia Mono", ui-monospace, monospace;

    --radius: 12px;
    --width: 72rem;

    color-scheme: dark;
}

@media (prefers-color-scheme: light) {
    :root {
        --night: #F7F6F8;
        --nightshade: #FFFFFF;
        --dusk: #E2DCE8;
        --firefly: #2D746C;
        --glow: #3E8F84;
        --wing: #BDE8D4;
        --ivory: #130B1C;
        --fog: #5E5566;
        --ember: #9A5A00;
        --on-accent: #FFFFFF;
        color-scheme: light;
    }
}

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

html {
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    background: var(--night);
    color: var(--ivory);
    font-family: var(--font-text);
    font-size: 1.0625rem;
    line-height: 1.6;
}

h1,
h2,
h3 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.01em;
}

h1 {
    font-size: clamp(2rem, 4vw + 1rem, 3.25rem);
    margin: 0 0 1rem;
}

h2 {
    font-size: 1.5rem;
    margin: 2.5rem 0 1rem;
}

h3 {
    font-size: 1.125rem;
    margin: 0 0 0.5rem;
}

a {
    color: var(--firefly);
    text-underline-offset: 0.2em;
}

a:hover {
    color: var(--glow);
}

:focus-visible {
    outline: 2px solid var(--firefly);
    outline-offset: 3px;
    border-radius: 4px;
}

code,
kbd {
    font-family: var(--font-mono);
    font-size: 0.9em;
}

.bar {
    width: min(100% - 2.5rem, var(--width));
    margin-inline: auto;
}

.skip {
    position: absolute;
    left: -100vw;
}

.skip:focus {
    left: 1rem;
    top: 1rem;
    z-index: 10;
    background: var(--nightshade);
    padding: 0.5rem 1rem;
}

/* Header and footer */

.site-header {
    border-bottom: 1px solid var(--dusk);
}

.site-header .bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding-block: 0.9rem;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--ivory);
    text-decoration: none;
}

.brand img {
    border-radius: 8px;
}

.wordmark {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.5rem;
    letter-spacing: 0.01em;
}

/* The dot on the i is a pixel: a small glowing Firefly square. */
.pixel-i {
    position: relative;
}

.pixel-i::before {
    content: "";
    position: absolute;
    left: 50%;
    top: 0.12em;
    width: 0.2em;
    height: 0.2em;
    transform: translateX(-50%);
    background: var(--firefly);
    box-shadow: 0 0 0.35em var(--firefly);
}

.links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem 1.25rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.links a {
    color: var(--fog);
    text-decoration: none;
    font-weight: 500;
}

.links a:hover,
.links a[aria-current="page"] {
    color: var(--ivory);
}

.links a[aria-current="page"] {
    text-decoration: underline;
    text-decoration-color: var(--firefly);
    text-decoration-thickness: 2px;
}

.site-footer {
    margin-top: 5rem;
    border-top: 1px solid var(--dusk);
    color: var(--fog);
    font-size: 0.9rem;
}

.site-footer .bar {
    padding-block: 1.5rem 2.5rem;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1.5rem;
}

.footer-links a {
    color: var(--fog);
}

/* Hero: the only brand surface, with the Aubergine gradient. */

.hero {
    position: relative;
    overflow: hidden;
    background: var(--brand-gradient);
    color: var(--on-brand);
}

.hero-inner {
    position: relative;
}

/* Fireflies: square pixels with a soft glow, like the dot on the i. Still unless motion is welcome. */
.fireflies {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.fireflies span {
    position: absolute;
    width: 4px;
    height: 4px;
    border-radius: 1px;
    background: var(--on-brand-accent);
    box-shadow: 0 0 6px 2px rgb(111 192 158 / 0.55), 0 0 18px 6px rgb(111 192 158 / 0.18);
    opacity: 0.55;
}

.fireflies span:nth-child(1) { left: 6%; top: 22%; }
.fireflies span:nth-child(2) { left: 14%; top: 70%; }
.fireflies span:nth-child(3) { left: 23%; top: 38%; }
.fireflies span:nth-child(4) { left: 31%; top: 84%; }
.fireflies span:nth-child(5) { left: 42%; top: 16%; }
.fireflies span:nth-child(6) { left: 50%; top: 62%; }
.fireflies span:nth-child(7) { left: 58%; top: 30%; }
.fireflies span:nth-child(8) { left: 66%; top: 78%; }
.fireflies span:nth-child(9) { left: 74%; top: 12%; }
.fireflies span:nth-child(10) { left: 83%; top: 52%; }
.fireflies span:nth-child(11) { left: 90%; top: 26%; }
.fireflies span:nth-child(12) { left: 95%; top: 74%; }

.hero-inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 2rem;
    padding-block: clamp(3rem, 8vw, 6rem);
}

.hero .eyebrow {
    color: var(--on-brand-accent);
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-size: 0.85rem;
    margin: 0 0 0.75rem;
}

.hero .lead {
    max-width: 40rem;
}

.hero-icon {
    width: clamp(8rem, 18vw, 14rem);
    height: auto;
    border-radius: 22%;
    filter: drop-shadow(0 0 2.5rem rgb(111 192 158 / 0.35));
}

/* Showcase: one real screenshot in a quiet frame, text beside it. */
.showcase {
    display: grid;
    grid-template-columns: minmax(0, 3fr) minmax(16rem, 2fr);
    align-items: center;
    gap: 2.5rem;
    padding-block: clamp(3rem, 7vw, 5rem) 1rem;
}

.screen {
    margin: 0;
}

.screen img {
    display: block;
    width: 100%;
    height: auto;
    border: 1px solid var(--dusk);
    border-radius: var(--radius);
    box-shadow: 0 1.5rem 4rem rgb(0 0 0 / 0.45), 0 0 3rem rgb(111 192 158 / 0.12);
}

.screen figcaption,
.ufo figcaption {
    margin-top: 0.75rem;
    color: var(--fog);
    font-size: 0.9rem;
}

.checks {
    margin: 1.25rem 0 0;
    padding: 0;
    list-style: none;
}

.checks li {
    position: relative;
    padding-left: 1.5rem;
    color: var(--fog);
}

.checks li + li {
    margin-top: 0.75rem;
}

.checks li::before {
    content: "";
    position: absolute;
    left: 0.15rem;
    top: 0.55em;
    width: 0.45rem;
    height: 0.45rem;
    border-radius: 1px;
    background: var(--firefly);
    box-shadow: 0 0 0.5rem rgb(111 192 158 / 0.6);
}

/* Lantern: the UFO test as a sketch. Three lanes, same speed, fewer steps per second. */
.lantern {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(16rem, 1fr);
    align-items: center;
    gap: 2.5rem;
    margin-block: 3rem;
    padding: clamp(1.5rem, 4vw, 2.5rem);
    background: var(--nightshade);
    border: 1px solid var(--dusk);
    border-radius: var(--radius);
}

.lantern .eyebrow {
    margin: 0 0 0.5rem;
    color: var(--firefly);
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-size: 0.85rem;
}

.lantern h2 {
    margin-top: 0;
}

.lantern p {
    color: var(--fog);
}

.ufo {
    margin: 0;
}

.lanes {
    display: grid;
    gap: 0.5rem;
    padding: 0.75rem;
    background: #000000;
    border-radius: calc(var(--radius) - 4px);
}

.lane {
    display: grid;
    grid-template-columns: 4.5rem 1fr;
    align-items: center;
    height: 2.5rem;
}

.lane span {
    color: #6c6c6c;
    font-family: var(--font-mono);
    font-size: 0.8rem;
}

.lane span::after {
    content: " fps";
}

.lane b {
    position: relative;
    container-type: inline-size;
    height: 100%;
    border-radius: 6px;
    background: #101010;
    overflow: hidden;
}

.lane i {
    position: absolute;
    top: 0.75rem;
    left: 0;
    width: 1rem;
    height: 1rem;
    border-radius: 2px;
    background: #6FC09E;
    box-shadow: 0 0 0.6rem rgb(111 192 158 / 0.7);
}

@media (max-width: 40rem) {
    .hero-inner {
        grid-template-columns: 1fr;
    }

    .hero-icon {
        order: -1;
        width: 6rem;
    }
}

.lead {
    font-size: 1.2rem;
    color: inherit;
}

.page .lead {
    color: var(--fog);
}

.actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 2rem;
}

/* Buttons: Firefly is an accent, the primary button is the one small surface. */

.button {
    display: inline-flex;
    align-items: center;
    min-height: 2.75rem;
    padding: 0.5rem 1.25rem;
    border: 1px solid currentColor;
    border-radius: 999px;
    background: transparent;
    color: inherit;
    font: inherit;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
}

.button:hover {
    color: inherit;
    border-color: var(--glow);
}

.button.primary {
    background: var(--firefly);
    border-color: var(--firefly);
    color: var(--on-accent);
}

.button.primary:hover {
    background: var(--glow);
    border-color: var(--glow);
    color: var(--on-accent);
}

.button.disabled {
    opacity: 0.75;
    cursor: default;
    border-style: dashed;
}

/* Content */

.page {
    padding-top: 3rem;
}

.narrow > * {
    max-width: 40rem;
}

/* Long text keeps the page's left edge but a readable line length. */
.prose > * {
    max-width: 48rem;
}

.prose h2 {
    margin-top: 2rem;
}

.prose li + li {
    margin-top: 0.4rem;
}

.prose strong {
    color: var(--ivory);
}

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(15rem, 1fr));
    gap: 1rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.card {
    background: var(--nightshade);
    border: 1px solid var(--dusk);
    border-radius: var(--radius);
    padding: 1.25rem 1.4rem;
}

.card p {
    margin: 0;
    color: var(--fog);
}

.card h2 {
    margin-top: 0;
    font-size: 1.25rem;
}

.card h3 {
    color: var(--firefly);
}

.split {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr));
    gap: 1rem 2.5rem;
    margin-top: 1rem;
}

.split .card p {
    color: var(--ivory);
}

.note {
    margin-top: 3rem;
    color: var(--fog);
    font-size: 0.95rem;
}

.faq details {
    border-bottom: 1px solid var(--dusk);
    padding-block: 0.9rem;
}

.faq summary {
    cursor: pointer;
    font-weight: 600;
}

.faq summary::marker {
    color: var(--firefly);
}

.faq details p {
    margin: 0.75rem 0 0.25rem;
    color: var(--fog);
}

/* Forms */

.form label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.4rem;
}

.form .row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.form input {
    flex: 1 1 12rem;
    min-height: 2.75rem;
    padding: 0.5rem 0.9rem;
    border: 1px solid var(--dusk);
    border-radius: 8px;
    background: var(--night);
    color: var(--ivory);
    font-family: var(--font-mono);
    font-size: 1rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.form input::placeholder {
    color: var(--fog);
    opacity: 0.7;
}

.form .hint {
    color: var(--fog);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.status {
    padding: 0.75rem 1rem;
    border-radius: 8px;
    border: 1px solid var(--dusk);
    background: var(--nightshade);
}

.status.ok {
    border-color: var(--firefly);
}

.status.warn {
    border-color: var(--ember);
}

address {
    font-style: normal;
}

/* Admin view: dense tables and raw data, nothing decorative. */
.admin-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0 2rem;
    font-size: 0.95rem;
}

.admin-table th,
.admin-table td {
    padding: 0.4rem 0.75rem 0.4rem 0;
    border-bottom: 1px solid var(--dusk);
    text-align: left;
    vertical-align: top;
}

.admin-table a[aria-current] {
    color: var(--glow);
}

.admin-facts {
    display: grid;
    grid-template-columns: max-content 1fr;
    gap: 0.35rem 1.5rem;
    margin: 1.5rem 0;
}

.admin-facts dt {
    color: var(--fog);
}

.admin-facts dd {
    margin: 0;
}

.admin-code {
    padding: 1rem;
    border: 1px solid var(--dusk);
    border-radius: var(--radius);
    background: var(--nightshade);
    white-space: pre-wrap;
    overflow-wrap: anywhere;
}

.admin-note {
    margin: 1rem 0;
    padding-left: 1rem;
    border-left: 3px solid var(--firefly);
    white-space: pre-wrap;
}

@media (max-width: 52rem) {
    .showcase,
    .lantern {
        grid-template-columns: 1fr;
    }
}

@media (prefers-reduced-motion: no-preference) {
    .button,
    a {
        transition: color 160ms ease, background-color 160ms ease, border-color 160ms ease;
    }

    /* Slow, calm and out of step with each other, never a blink. */
    .fireflies span {
        animation: firefly-drift 18s ease-in-out infinite alternate, firefly-glow 4.5s ease-in-out infinite;
    }

    .fireflies span:nth-child(3n) { animation-duration: 23s, 6s; }
    .fireflies span:nth-child(3n + 1) { animation-duration: 15s, 3.8s; animation-direction: alternate-reverse, normal; }
    .fireflies span:nth-child(2) { animation-delay: -3s, -1s; }
    .fireflies span:nth-child(4) { animation-delay: -7s, -2.5s; }
    .fireflies span:nth-child(5) { animation-delay: -11s, -0.5s; }
    .fireflies span:nth-child(7) { animation-delay: -5s, -3s; }
    .fireflies span:nth-child(8) { animation-delay: -13s, -1.8s; }
    .fireflies span:nth-child(10) { animation-delay: -9s, -4s; }
    .fireflies span:nth-child(11) { animation-delay: -2s, -2.2s; }
    .fireflies span:nth-child(12) { animation-delay: -15s, -3.4s; }

    .hero-icon {
        animation: icon-glow 7s ease-in-out infinite;
    }

    .pixel-i::before {
        animation: firefly-glow 6s ease-in-out infinite;
    }

    .lane i {
        animation: ufo 3s linear infinite;
    }

    .lane:nth-child(2) i { animation-timing-function: steps(36); }
    .lane:nth-child(3) i { animation-timing-function: steps(18); }

    /* Sections rise in as they scroll into view, where the browser supports scroll timelines. */
    @supports (animation-timeline: view()) {
        .reveal,
        .cards .card {
            animation: rise linear both;
            animation-timeline: view();
            animation-range: entry 0% entry 60%;
        }
    }
}

@keyframes firefly-drift {
    from { transform: translate(0, 0); }
    50% { transform: translate(1.5rem, -1rem); }
    to { transform: translate(-1rem, -2rem); }
}

@keyframes firefly-glow {
    0%, 100% { opacity: 0.25; }
    50% { opacity: 0.9; }
}

@keyframes icon-glow {
    0%, 100% { filter: drop-shadow(0 0 2rem rgb(111 192 158 / 0.25)); }
    50% { filter: drop-shadow(0 0 3.25rem rgb(111 192 158 / 0.45)); }
}

@keyframes ufo {
    from { transform: translateX(0.5rem); }
    to { transform: translateX(calc(100cqw - 1.5rem)); }
}

@keyframes rise {
    from { opacity: 0; transform: translateY(1.25rem); }
    to { opacity: 1; transform: none; }
}

@media (forced-colors: active) {
    .pixel-i::before {
        background: CanvasText;
        box-shadow: none;
    }

    .hero {
        background: Canvas;
        color: CanvasText;
    }

    .fireflies {
        display: none;
    }
}