/* ─────────────────────────────────────────────────────────────────────────────
 * Apple-Worker marketing site.
 *
 * Layout/structure follows anthropic.com — sticky slim header, oversized
 * centred banner, paired feature cards, plans row, tall multi-column footer.
 *
 * Palette/type/radii/motion are the tokens from the worker application
 * (`frontend/packages/common/src/theme.css`), copied verbatim so the site reads
 * as the same product: warm-neutral surfaces, near-black ink (never pure #000),
 * ONE muted graphite accent, soft low-contrast borders, 8–12px radii.
 * Dark mode re-values the same token names under html[data-theme="dark"],
 * exactly as the app does.
 * ──────────────────────────────────────────────────────────────────────────── */

:root {
    /* Surfaces */
    --color-bg: #fafaf9;
    --color-surface: #ffffff;
    --color-surface-soft: #f4f4f2;
    --color-surface-alt: #f7f7f5;

    /* Borders */
    --color-border: #e4e4e1;
    --color-border-soft: #ededea;

    /* Ink — three tiers only */
    --color-ink: #1a1a18;
    --color-ink-muted: #5c5c57;
    --color-ink-faint: #727270;

    /* Accent — a lightness ramp, not a hue ramp */
    --color-brand-50: #f2f2ef;
    --color-brand-100: #e8e8e4;
    --color-brand-200: #d6d6d1;
    --color-brand-300: #a3a39d;
    --color-brand-400: #6e6e69;
    --color-brand-500: #2c2c2a;
    --color-brand-600: #171716;
    --color-brand-700: #0f0f0e;
    --color-on-accent: #ffffff;

    /* Status — the only saturated hues in the system */
    --color-success: #17803f;
    --color-success-soft: #eaf5ee;
    --color-info: #1f5f8b;
    --color-info-soft: #ecf2f7;

    /* Typography */
    --font-sans: "Open Sans", sans-serif;,
    "Helvetica Neue", Arial, sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
    "Liberation Mono", monospace;
    --leading-body: 1.6;
    --leading-tight-ui: 1.35;

    /* Radii */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.625rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;

    /* Elevation */
    --shadow-card: 0 1px 2px rgba(26, 26, 24, 0.04);
    --shadow-elevated: 0 4px 16px -4px rgba(26, 26, 24, 0.1),
    0 12px 32px -12px rgba(26, 26, 24, 0.12);
    --ring-focus: 0 0 0 3px rgba(26, 26, 24, 0.1);

    /* Motion */
    --duration-fast: 150ms;
    --duration-base: 200ms;
    --ease-soft: cubic-bezier(0.2, 0, 0.2, 1);
    --scale-press: 0.98;

    /* Layout */
    --page-max: 76rem;
    --prose-max: 42rem;
    --header-h: 4rem;
}

html[data-theme="dark"] {
    color-scheme: dark;

    --color-bg: #1a1a19;
    --color-surface: #212120;
    --color-surface-soft: #2a2a28;
    --color-surface-alt: #161615;

    --color-border: #333331;
    --color-border-soft: #2c2c2a;

    --color-ink: #f2f2ef;
    --color-ink-muted: #a8a8a2;
    --color-ink-faint: #8b8b86;

    --color-brand-50: #262624;
    --color-brand-100: #2f2f2c;
    --color-brand-200: #3d3d3a;
    --color-brand-300: #6e6e69;
    --color-brand-400: #a3a39d;
    --color-brand-500: #ededea;
    --color-brand-600: #ffffff;
    --color-brand-700: #ffffff;
    --color-on-accent: #1a1a18;

    --color-success: #4ade80;
    --color-success-soft: #1d2b21;
    --color-info: #7cc0e8;
    --color-info-soft: #1c262d;

    --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow-elevated: 0 4px 16px -4px rgba(0, 0, 0, 0.5),
    0 12px 32px -12px rgba(0, 0, 0, 0.6);
    --ring-focus: 0 0 0 3px rgba(242, 242, 239, 0.14);
}

/* ═══ Base ═══════════════════════════════════════════════════════════════ */

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--header-h) + 1rem);
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    background: var(--color-bg);
    color: var(--color-ink);
    font-family: var(--font-sans);
    line-height: var(--leading-body);
    font-size: 1rem;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

h1,
h2,
h3,
h4 {
    margin: 0;
    line-height: 1.1;
    letter-spacing: -0.02em;
    font-weight: 500;
}

p {
    margin: 0;
}

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

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--duration-fast) var(--ease-soft);
}

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

:focus-visible {
    outline: none;
    box-shadow: var(--ring-focus);
    border-radius: var(--radius-sm);
}

.shell {
    width: 100%;
    max-width: var(--page-max);
    margin-inline: auto;
    padding-inline: 1.5rem;
}

.skip-link {
    position: absolute;
    left: 1rem;
    top: -3rem;
    z-index: 100;
    padding: 0.5rem 0.875rem;
    border-radius: var(--radius-md);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    font-size: 0.875rem;
    transition: top var(--duration-base) var(--ease-soft);
}

.skip-link:focus {
    top: 1rem;
}

/* ═══ Buttons ════════════════════════════════════════════════════════════ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    padding: 0.625rem 1.125rem;
    font: inherit;
    font-size: 0.9375rem;
    font-weight: 500;
    line-height: var(--leading-tight-ui);
    cursor: pointer;
    white-space: nowrap;
    transition: background-color var(--duration-fast) var(--ease-soft),
    border-color var(--duration-fast) var(--ease-soft),
    color var(--duration-fast) var(--ease-soft),
    transform var(--duration-fast) var(--ease-soft);
}

.btn:active {
    transform: scale(var(--scale-press));
}

.btn--primary {
    background: var(--color-brand-500);
    color: var(--color-on-accent);
}

.btn--primary:hover {
    background: var(--color-brand-600);
}

.btn--secondary {
    background: var(--color-surface);
    border-color: var(--color-border);
    color: var(--color-ink);
}

.btn--secondary:hover {
    background: var(--color-surface-soft);
    border-color: var(--color-brand-300);
}

.btn--ghost {
    background: transparent;
    color: var(--color-ink-muted);
    padding: 0.5rem 0.75rem;
}

.btn--ghost:hover {
    background: var(--color-surface-soft);
    color: var(--color-ink);
}

.btn--sm {
    padding: 0.4375rem 0.875rem;
    font-size: 0.875rem;
}

.btn--lg {
    padding: 0.8125rem 1.5rem;
    font-size: 1rem;
}

/* ═══ Logo ═══════════════════════════════════════════════════════════════ */

/* The raptor "R" from the worker app (apps/worker/src/assets/logo-raptor.png).
 * Pure-black shapes on a transparent field, so dark mode inverts it rather than
 * shipping a second file — the brightness trim lands it on the theme's dark ink
 * (#f2f2ef) instead of a pure white that would out-shout the text beside it. */
.logo {
    display: inline-flex;
    align-items: center;
    gap: 0.5625rem;
    color: var(--color-ink);
    font-weight: 500;
    letter-spacing: -0.02em;
    font-family: "Space Grotesk", sans-serif;
    font-size: 40px;
}

.logo__mark {
    height: 1.375rem;
    width: auto; /* 1600 × 1085 — never force this square */
    flex: none;
}

html[data-theme="dark"] .logo__mark,
html[data-theme="dark"] .hero__mark {
    filter: invert(1) brightness(0.95);
}

.logo__word {
    font-size: 40px;
    line-height: 1;
}

/* ═══ Header ═════════════════════════════════════════════════════════════ */

.header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: color-mix(in srgb, var(--color-bg) 88%, transparent);
    backdrop-filter: saturate(1.4) blur(12px);
    border-bottom: 1px solid transparent;
    transition: border-color var(--duration-base) var(--ease-soft);
}

.header[data-scrolled="true"] {
    border-bottom-color: var(--color-border-soft);
}

.header__inner {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    height: var(--header-h);
}

.header__nav {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    margin-inline-start: 0.5rem;
    flex: 1;
    flex-direction: row-reverse;
}

.header__link {
    padding: 0.4375rem 0.6875rem;
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    color: var(--color-ink-muted);
    transition: background-color var(--duration-fast) var(--ease-soft),
    color var(--duration-fast) var(--ease-soft);
}

.header__link:hover {
    background: var(--color-surface-soft);
    color: var(--color-ink);
}

.header__actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-inline-start: auto;
}

.icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.125rem;
    height: 2.125rem;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--color-ink-muted);
    cursor: pointer;
    transition: background-color var(--duration-fast) var(--ease-soft),
    color var(--duration-fast) var(--ease-soft);
}

.icon-btn:hover {
    background: var(--color-surface-soft);
    color: var(--color-ink);
}

.icon-btn svg {
    width: 1.125rem;
    height: 1.125rem;
}

/* The sun/moon pair swap on theme, so one button reads the current state. */
.icon-btn__moon {
    display: none;
}

html[data-theme="dark"] .icon-btn__sun {
    display: none;
}

html[data-theme="dark"] .icon-btn__moon {
    display: block;
}

.header__toggle {
    display: none;
}

/* Mobile drawer — collapsed by default, revealed by the disclosure button. */
.mobile-nav {
    display: none;
    border-top: 1px solid var(--color-border-soft);
    background: var(--color-bg);
    padding: 0.75rem 0 1.25rem;
}

.mobile-nav[data-open="true"] {
    display: block;
}

.mobile-nav__link {
    display: block;
    padding: 0.6875rem 0.5rem;
    border-radius: var(--radius-md);
    color: var(--color-ink-muted);
    font-size: 1rem;
}

.mobile-nav__link:hover {
    background: var(--color-surface-soft);
    color: var(--color-ink);
}

/* The drawer's theme row is a button, styled to sit in the same rhythm as the
 * links around it. */
.mobile-nav__theme {
    width: 100%;
    border: 0;
    background: transparent;
    font: inherit;
    font-size: 1rem;
    text-align: start;
    cursor: pointer;
}

.mobile-nav__theme-off {
    display: none;
}

html[data-theme="dark"] .mobile-nav__theme-on {
    display: none;
}

html[data-theme="dark"] .mobile-nav__theme-off {
    display: inline;
}

.mobile-nav .btn {
    width: 100%;
    margin-top: 0.75rem;
}

/* ═══ Hero / middle banner ═══════════════════════════════════════════════ */

.hero {
    position: relative;
    overflow: hidden;
    padding: clamp(3.5rem, 9vw, 7rem) 0 clamp(3rem, 7vw, 5.5rem);
    text-align: center;
}

/* A single very soft radial wash — the only decoration; keeps the canvas warm
 * without introducing hue. */
.hero::before {
    content: "";
    position: absolute;
    inset: -30% 0 auto;
    height: 70%;
    background: radial-gradient(
            ellipse 60% 100% at 50% 0%,
            var(--color-surface-soft),
            transparent 70%
    );
    pointer-events: none;
}

.hero__inner {
    position: relative;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.3125rem 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: 999px;
    background: var(--color-surface);
    color: var(--color-ink-muted);
    font-size: 0.8125rem;
    line-height: var(--leading-tight-ui);
}

.eyebrow__dot {
    width: 0.4375rem;
    height: 0.4375rem;
    border-radius: 999px;
    background: var(--color-success);
    flex: none;
}

/* The banner logo: the mark at display size, wordmark beneath it. */
.hero__logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: clamp(1rem, 2.5vw, 1.75rem);
    margin: clamp(1.75rem, 4vw, 2.75rem) 0 clamp(1.25rem, 3vw, 2rem);
    color: var(--color-ink);
}

.hero__mark {
    width: clamp(11rem, 26vw, 19rem);
    height: auto;
}

.hero__wordmark {
    font-size: clamp(2.5rem, 7.5vw, 5rem);
    font-weight: 500;
    letter-spacing: -0.045em;
    line-height: 1;
}

.hero__wordmark .hyphen {
    color: var(--color-ink-faint);
    font-weight: 300;
}

.hero__slogan {
    max-width: 28ch;
    margin-inline: auto;
    font-size: clamp(1.375rem, 3.2vw, 2rem);
    font-weight: 500;
    letter-spacing: -0.025em;
    line-height: 1.2;
}

.hero__blurb {
    max-width: var(--prose-max);
    margin: 1.125rem auto 0;
    color: var(--color-ink-muted);
    font-size: clamp(1rem, 1.6vw, 1.125rem);
}

.hero__cta {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
    margin-top: 2rem;
}

.hero__meta {
    margin-top: 1.5rem;
    color: var(--color-ink-faint);
    font-size: 0.875rem;
}

/* ═══ Section furniture ══════════════════════════════════════════════════ */

.section {
    padding: clamp(3rem, 7vw, 5.5rem) 0;
}

.section--soft {
    background: var(--color-surface-alt);
    border-block: 1px solid var(--color-border-soft);
}

.section__head {
    max-width: var(--prose-max);
    margin-bottom: clamp(2rem, 4vw, 3rem);
}

.section__head--center {
    margin-inline: auto;
    text-align: center;
}

.section__label {
    display: block;
    margin-bottom: 0.75rem;
    color: var(--color-ink-faint);
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.section__title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
}

.section__lede {
    margin-top: 1rem;
    color: var(--color-ink-muted);
    font-size: 1.0625rem;
}

/* ═══ Paired hero cards ══════════════════════════════════════════════════ */

.duo {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
}

.duo__card {
    display: flex;
    flex-direction: column;
    min-height: 17rem;
    padding: 1.75rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
    background: var(--color-surface);
    box-shadow: var(--shadow-card);
    transition: border-color var(--duration-base) var(--ease-soft),
    box-shadow var(--duration-base) var(--ease-soft),
    transform var(--duration-base) var(--ease-soft);
}

.duo__card:hover {
    border-color: var(--color-brand-300);
    box-shadow: var(--shadow-elevated);
    transform: translateY(-2px);
}

.duo__card--tint {
    background: var(--color-surface-soft);
}

.duo__kicker {
    color: var(--color-ink-faint);
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.duo__title {
    margin-top: 0.875rem;
    font-size: 1.5rem;
}

.duo__body {
    margin-top: 0.75rem;
    color: var(--color-ink-muted);
    font-size: 0.9375rem;
}

.duo__foot {
    margin-top: auto;
    padding-top: 1.5rem;
}

.arrow-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4375rem;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-ink);
}

.arrow-link svg {
    width: 1rem;
    height: 1rem;
    transition: transform var(--duration-base) var(--ease-soft);
}

.arrow-link:hover svg {
    transform: translateX(3px);
}

/* ═══ Capability grid ════════════════════════════════════════════════════ */

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
}

.card {
    padding: 1.5rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    background: var(--color-surface);
    box-shadow: var(--shadow-card);
    transition: border-color var(--duration-base) var(--ease-soft),
    box-shadow var(--duration-base) var(--ease-soft);
}

.card:hover {
    border-color: var(--color-brand-300);
    box-shadow: var(--shadow-elevated);
}

.card__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    margin-bottom: 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-surface-soft);
    color: var(--color-ink);
}

.card__icon svg {
    width: 1.125rem;
    height: 1.125rem;
}

.card__title {
    font-size: 1.0625rem;
}

.card__body {
    margin-top: 0.5rem;
    color: var(--color-ink-muted);
    font-size: 0.9375rem;
}

.card__tag {
    display: inline-block;
    margin-top: 1rem;
    padding: 0.1875rem 0.5rem;
    border-radius: var(--radius-sm);
    background: var(--color-brand-100);
    color: var(--color-brand-700);
    font-family: var(--font-mono);
    font-size: 0.75rem;
}

/* ═══ Steps ══════════════════════════════════════════════════════════════ */

.steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
}

.step {
    position: relative;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border);
}

.step__num {
    display: block;
    margin-bottom: 0.75rem;
    color: var(--color-ink-faint);
    font-family: var(--font-mono);
    font-size: 0.8125rem;
}

.step__title {
    font-size: 1.0625rem;
}

.step__body {
    margin-top: 0.5rem;
    color: var(--color-ink-muted);
    font-size: 0.9375rem;
}

/* ═══ Viewport-triggered theropod banner ═════════════════════════════════
 * When the section scrolls into view an IntersectionObserver sets
 * data-active="true", and CSS transitions expand the band to full bleed
 * and reveal every idea chip with a staggered entrance.  Scrolling back
 * up clears the attribute and everything reverses.
 *
 * Custom properties written by the script:
 *   --vw   viewport width in px, EXCLUDING the scrollbar (100vw would
 *          include it and make the band overflow horizontally)
 *
 * Every fallback resolves to the finished state, so with no JS the band is
 * simply a full-width banner with all seven ideas showing.
 * ═════════════════════════════════════════════════════════════════════════ */

.saurus {
    position: relative;
}

.saurus__stage {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4rem 0;
}

.saurus__band {
    --band-min: min(72rem, var(--vw, 100vw) - 3rem);

    position: relative;
    overflow: hidden;
    width: var(--band-min);
    height: min(80vh, 40rem);
    /* Deep navy rather than pure black — it is a night sky now, and the pixel
     * planets and the Milky Way need a backdrop that reads as space instead of
     * as a hole in the page. Same value in both themes, so the band is the same
     * object whichever way the page is set; in dark mode the canvas is close
     * enough that a hairline keeps its edge legible. */
    background: rgb(44 44 42);
    border-radius: var(--radius-2xl);
    color: #f7f7f5;
    transition: width 1.4s cubic-bezier(0.22, 1, 0.36, 1),
                border-radius 1.4s cubic-bezier(0.22, 1, 0.36, 1);
}

/* When the section enters the viewport, expand band to full width */
.saurus[data-active="true"] .saurus__band {
    width: var(--vw, 100vw);
    border-radius: 0;
}

html[data-theme="dark"] .saurus__band {
    box-shadow: inset 0 0 0 1px var(--color-border);
}

.saurus__head {
    position: absolute;
    inset: clamp(1.5rem, 4vw, 2.75rem) 1.5rem auto;
    text-align: center;
    z-index: 2;
}

.saurus__eyebrow {
    display: block;
    margin-bottom: 0.625rem;
    color: rgba(247, 247, 245, 0.55);
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.saurus__title {
    font-size: 20px;
    color: #f7f7f5;
    font-family: "Press Start 2P", system-ui;
}

.saurus__scene {
    position: absolute;
    inset: 0;
}

/* ── The raptor ────────────────────────────────────────────────────────── */

.saurus__dino {
    /* The size of the ANIMAL, which is what the layout cares about. The svg's
     * viewBox is wider than the animal now — 70 of its 201 units are empty space
     * on the left for the exhaust — so the element is scaled up by that ratio
     * and pulled back by the same amount. Net effect: the raptor's pixels are
     * the size and position they were before the flame existed. */
    --dino-w: clamp(4.5rem, 10.5%, 8.8rem);

    position: absolute;
    left: 17%;
    bottom: 24%;
    width: calc(var(--dino-w) * 201 / 131);
    margin-left: calc(var(--dino-w) * -70 / 131);
    height: auto;
    z-index: 1;
    /* The raptor is a grid of squares now, and it scales to a fractional pixel
     * size — without this, antialiasing softens every step and leaves faint
     * seams where two rects meet. */
    shape-rendering: crispEdges;
    /* Always drifting, independent of the scroll: an ease-in-out on a single
     * translate reads as a slow swim rather than a bounce with impact. */
    animation: dino-swim 6s cubic-bezier(0.45, 0, 0.55, 1) infinite;
    will-change: transform;
}

@keyframes dino-swim {
    0%,
    100% {
        transform: translateY(-3%);
    }
    50% {
        transform: translateY(3%);
    }
}

.dino__body {
    fill: #f7f7f5;
}

.dino__eye {
    fill: #2c2c2a;
}

/* The exhaust flickers the way pixel art does: three whole frames, one visible
 * at a time, swapped on a hard cut. Each frame runs the same 3-step cycle and
 * they are offset by a third of it, so exactly one is up at any moment — no
 * cross-fade, which would read as a glow rather than as fire. Fast enough
 * (0.36s for the loop) to look like thrust and not like a blinking light. */
.dino__flame {
    animation: dino-flame 0.36s steps(1, end) infinite;
}

.dino__flame--2 {
    animation-delay: 0.12s;
}

.dino__flame--3 {
    animation-delay: 0.24s;
}

@keyframes dino-flame {
    0%,
    33.32% {
        opacity: 1;
    }
    33.33%,
    100% {
        opacity: 0;
    }
}

/* ── Cosmos ────────────────────────────────────────────────────────────── */

.cosmos {
    position: absolute;
    inset: 0;
    overflow: hidden;
    /* Drift the entire star field to the left so the theropod looks like it
     * is flying forward through space. The keyframes shift by -12% and
     * then loop; because the star field is placed in percentages the
     * seamlessness isn't pixel-perfect, but the travel is subtle enough
     * that the re-set is invisible in practice. */
    /* animation: cosmos-drift 60s linear infinite; */
    will-change: transform;
}

@keyframes cosmos-drift {
    0%   { transform: translateX(4%); }
    100% { transform: translateX(-4%); }
}

/* Marks are placed in percentages of the band but SIZED in px, so the field
 * reflows to any band shape while every pixel stays a true square. An SVG
 * cannot do both: one viewBox would have to crop away most of either the wide
 * desktop band or the tall phone one. */
.star {
    position: absolute;
    left: var(--x);
    top: var(--y);
    width: var(--s, 3px);
    height: var(--s, 3px);
    background: #f7f7f5;
    opacity: var(--o, 0.4);
}

/* The plus-shaped bright stars: four offset shadows, no blur and no extra
 * elements, so the arms stay squares like everything else. */
.star--cross {
    box-shadow: calc(var(--s) * -1) 0 0 rgba(247, 247, 245, 0.42),
    var(--s) 0 0 rgba(247, 247, 245, 0.42),
    0 calc(var(--s) * -1) 0 rgba(247, 247, 245, 0.42),
    0 var(--s) 0 rgba(247, 247, 245, 0.42);
}

/* A pixel blinks rather than fades — `steps` keeps it from reading as a glow. */
.star--twinkle {
    animation: star-blink 4.5s steps(1, end) infinite;
}

@keyframes star-blink {
    0%,
    46% {
        opacity: var(--o, 0.4);
    }
    50%,
    62% {
        opacity: 0.9;
    }
    66%,
    100% {
        opacity: var(--o, 0.4);
    }
}

/* ── The Milky Way ─────────────────────────────────────────────────────
 * A staircase, not a rotated rectangle: the element is one wide step and each
 * box-shadow is another step offset up and to the right, so the band's edge is
 * a run of hard pixel corners like the rest of the field. Four rows of steps
 * give it thickness, brightest through the middle. */
.milkyway {
    --sw: 112px;
    --sh: 26px;

    position: absolute;
    left: -6%;
    top: 58%;
    width: var(--sw);
    height: var(--sh);
    background: rgba(230, 230, 226, 0.1);
    box-shadow: calc(var(--sw) * 1) calc(var(--sh) * -1) 0 rgba(230, 230, 226, 0.045),
    calc(var(--sw) * 1) calc(var(--sh) * 0) 0 rgba(230, 230, 226, 0.1),
    calc(var(--sw) * 1) calc(var(--sh) * 1) 0 rgba(230, 230, 226, 0.12),
    calc(var(--sw) * 1) calc(var(--sh) * 2) 0 rgba(230, 230, 226, 0.07),
    calc(var(--sw) * 2) calc(var(--sh) * -2) 0 rgba(230, 230, 226, 0.045),
    calc(var(--sw) * 2) calc(var(--sh) * -1) 0 rgba(230, 230, 226, 0.1),
    calc(var(--sw) * 2) calc(var(--sh) * 0) 0 rgba(230, 230, 226, 0.12),
    calc(var(--sw) * 2) calc(var(--sh) * 1) 0 rgba(230, 230, 226, 0.07),
    calc(var(--sw) * 3) calc(var(--sh) * -3) 0 rgba(230, 230, 226, 0.045),
    calc(var(--sw) * 3) calc(var(--sh) * -2) 0 rgba(230, 230, 226, 0.1),
    calc(var(--sw) * 3) calc(var(--sh) * -1) 0 rgba(230, 230, 226, 0.12),
    calc(var(--sw) * 3) calc(var(--sh) * 0) 0 rgba(230, 230, 226, 0.07),
    calc(var(--sw) * 4) calc(var(--sh) * -4) 0 rgba(230, 230, 226, 0.045),
    calc(var(--sw) * 4) calc(var(--sh) * -3) 0 rgba(230, 230, 226, 0.1),
    calc(var(--sw) * 4) calc(var(--sh) * -2) 0 rgba(230, 230, 226, 0.12),
    calc(var(--sw) * 4) calc(var(--sh) * -1) 0 rgba(230, 230, 226, 0.07),
    calc(var(--sw) * 5) calc(var(--sh) * -5) 0 rgba(230, 230, 226, 0.045),
    calc(var(--sw) * 5) calc(var(--sh) * -4) 0 rgba(230, 230, 226, 0.1),
    calc(var(--sw) * 5) calc(var(--sh) * -3) 0 rgba(230, 230, 226, 0.12),
    calc(var(--sw) * 5) calc(var(--sh) * -2) 0 rgba(230, 230, 226, 0.07),
    calc(var(--sw) * 6) calc(var(--sh) * -6) 0 rgba(230, 230, 226, 0.045),
    calc(var(--sw) * 6) calc(var(--sh) * -5) 0 rgba(230, 230, 226, 0.1),
    calc(var(--sw) * 6) calc(var(--sh) * -4) 0 rgba(230, 230, 226, 0.12),
    calc(var(--sw) * 6) calc(var(--sh) * -3) 0 rgba(230, 230, 226, 0.07),
    calc(var(--sw) * 7) calc(var(--sh) * -7) 0 rgba(230, 230, 226, 0.045),
    calc(var(--sw) * 7) calc(var(--sh) * -6) 0 rgba(230, 230, 226, 0.1),
    calc(var(--sw) * 7) calc(var(--sh) * -5) 0 rgba(230, 230, 226, 0.12),
    calc(var(--sw) * 7) calc(var(--sh) * -4) 0 rgba(230, 230, 226, 0.07),
    calc(var(--sw) * 8) calc(var(--sh) * -8) 0 rgba(230, 230, 226, 0.045),
    calc(var(--sw) * 8) calc(var(--sh) * -7) 0 rgba(230, 230, 226, 0.1),
    calc(var(--sw) * 8) calc(var(--sh) * -6) 0 rgba(230, 230, 226, 0.12),
    calc(var(--sw) * 8) calc(var(--sh) * -5) 0 rgba(230, 230, 226, 0.07),
    calc(var(--sw) * 9) calc(var(--sh) * -9) 0 rgba(230, 230, 226, 0.045),
    calc(var(--sw) * 9) calc(var(--sh) * -8) 0 rgba(230, 230, 226, 0.1),
    calc(var(--sw) * 9) calc(var(--sh) * -7) 0 rgba(230, 230, 226, 0.12),
    calc(var(--sw) * 9) calc(var(--sh) * -6) 0 rgba(230, 230, 226, 0.07),
    calc(var(--sw) * 10) calc(var(--sh) * -10) 0 rgba(230, 230, 226, 0.045),
    calc(var(--sw) * 10) calc(var(--sh) * -9) 0 rgba(230, 230, 226, 0.1),
    calc(var(--sw) * 10) calc(var(--sh) * -8) 0 rgba(230, 230, 226, 0.12),
    calc(var(--sw) * 10) calc(var(--sh) * -7) 0 rgba(230, 230, 226, 0.07),
    calc(var(--sw) * 11) calc(var(--sh) * -11) 0 rgba(230, 230, 226, 0.045),
    calc(var(--sw) * 11) calc(var(--sh) * -10) 0 rgba(230, 230, 226, 0.1),
    calc(var(--sw) * 11) calc(var(--sh) * -9) 0 rgba(230, 230, 226, 0.12),
    calc(var(--sw) * 11) calc(var(--sh) * -8) 0 rgba(230, 230, 226, 0.07),
    calc(var(--sw) * 12) calc(var(--sh) * -12) 0 rgba(230, 230, 226, 0.045),
    calc(var(--sw) * 12) calc(var(--sh) * -11) 0 rgba(230, 230, 226, 0.1),
    calc(var(--sw) * 12) calc(var(--sh) * -10) 0 rgba(230, 230, 226, 0.12),
    calc(var(--sw) * 12) calc(var(--sh) * -9) 0 rgba(230, 230, 226, 0.07),
    calc(var(--sw) * 13) calc(var(--sh) * -13) 0 rgba(230, 230, 226, 0.045),
    calc(var(--sw) * 13) calc(var(--sh) * -12) 0 rgba(230, 230, 226, 0.1),
    calc(var(--sw) * 13) calc(var(--sh) * -11) 0 rgba(230, 230, 226, 0.12),
    calc(var(--sw) * 13) calc(var(--sh) * -10) 0 rgba(230, 230, 226, 0.07);
}

/* ── Planets ───────────────────────────────────────────────────────────
 * Same technique as the stars: the element is ONE cell and the body is its
 * box-shadows, so a planet is a pixel grid at any size — `--u` is the cell and
 * every offset is a multiple of it. Each disc is a real pixel circle (cell
 * centres inside the radius), shaded by row with a darker limb down the
 * trailing edge so a flat grid still reads as a sphere. Greyscale, like the
 * rest of the band — the theme keeps colour for status, so a planet is told
 * apart from its neighbours by how light its ramp sits, not by hue. */
.planet {
    position: absolute;
    left: var(--x);
    top: var(--y);
    width: var(--u);
    height: var(--u);
}

/* banded gas giant */
.planet--gas {
    --u: 8px;
    box-shadow: calc(var(--u) * 2) 0 0 #f4f4f2,
    calc(var(--u) * 3) 0 0 #f4f4f2,
    calc(var(--u) * 4) 0 0 #f4f4f2,
    calc(var(--u) * 5) 0 0 #f4f4f2,
    calc(var(--u) * 6) 0 0 #868682,
    calc(var(--u) * 1) calc(var(--u) * 1) 0 #f4f4f2,
    calc(var(--u) * 2) calc(var(--u) * 1) 0 #f4f4f2,
    calc(var(--u) * 3) calc(var(--u) * 1) 0 #f4f4f2,
    calc(var(--u) * 4) calc(var(--u) * 1) 0 #f4f4f2,
    calc(var(--u) * 5) calc(var(--u) * 1) 0 #f4f4f2,
    calc(var(--u) * 6) calc(var(--u) * 1) 0 #f4f4f2,
    calc(var(--u) * 7) calc(var(--u) * 1) 0 #868682,
    0 calc(var(--u) * 2) 0 #dcdcd8,
    calc(var(--u) * 1) calc(var(--u) * 2) 0 #dcdcd8,
    calc(var(--u) * 2) calc(var(--u) * 2) 0 #dcdcd8,
    calc(var(--u) * 3) calc(var(--u) * 2) 0 #dcdcd8,
    calc(var(--u) * 4) calc(var(--u) * 2) 0 #dcdcd8,
    calc(var(--u) * 5) calc(var(--u) * 2) 0 #dcdcd8,
    calc(var(--u) * 6) calc(var(--u) * 2) 0 #dcdcd8,
    calc(var(--u) * 7) calc(var(--u) * 2) 0 #dcdcd8,
    calc(var(--u) * 8) calc(var(--u) * 2) 0 #868682,
    0 calc(var(--u) * 3) 0 #b9b9b4,
    calc(var(--u) * 1) calc(var(--u) * 3) 0 #b9b9b4,
    calc(var(--u) * 2) calc(var(--u) * 3) 0 #b9b9b4,
    calc(var(--u) * 3) calc(var(--u) * 3) 0 #b9b9b4,
    calc(var(--u) * 4) calc(var(--u) * 3) 0 #b9b9b4,
    calc(var(--u) * 5) calc(var(--u) * 3) 0 #b9b9b4,
    calc(var(--u) * 6) calc(var(--u) * 3) 0 #b9b9b4,
    calc(var(--u) * 7) calc(var(--u) * 3) 0 #b9b9b4,
    calc(var(--u) * 8) calc(var(--u) * 3) 0 #868682,
    0 calc(var(--u) * 4) 0 #b9b9b4,
    calc(var(--u) * 1) calc(var(--u) * 4) 0 #b9b9b4,
    calc(var(--u) * 2) calc(var(--u) * 4) 0 #b9b9b4,
    calc(var(--u) * 3) calc(var(--u) * 4) 0 #b9b9b4,
    calc(var(--u) * 4) calc(var(--u) * 4) 0 #b9b9b4,
    calc(var(--u) * 5) calc(var(--u) * 4) 0 #b9b9b4,
    calc(var(--u) * 6) calc(var(--u) * 4) 0 #b9b9b4,
    calc(var(--u) * 7) calc(var(--u) * 4) 0 #b9b9b4,
    calc(var(--u) * 8) calc(var(--u) * 4) 0 #868682,
    0 calc(var(--u) * 5) 0 #dcdcd8,
    calc(var(--u) * 1) calc(var(--u) * 5) 0 #dcdcd8,
    calc(var(--u) * 2) calc(var(--u) * 5) 0 #dcdcd8,
    calc(var(--u) * 3) calc(var(--u) * 5) 0 #dcdcd8,
    calc(var(--u) * 4) calc(var(--u) * 5) 0 #dcdcd8,
    calc(var(--u) * 5) calc(var(--u) * 5) 0 #dcdcd8,
    calc(var(--u) * 6) calc(var(--u) * 5) 0 #dcdcd8,
    calc(var(--u) * 7) calc(var(--u) * 5) 0 #dcdcd8,
    calc(var(--u) * 8) calc(var(--u) * 5) 0 #868682,
    0 calc(var(--u) * 6) 0 #b9b9b4,
    calc(var(--u) * 1) calc(var(--u) * 6) 0 #b9b9b4,
    calc(var(--u) * 2) calc(var(--u) * 6) 0 #b9b9b4,
    calc(var(--u) * 3) calc(var(--u) * 6) 0 #b9b9b4,
    calc(var(--u) * 4) calc(var(--u) * 6) 0 #b9b9b4,
    calc(var(--u) * 5) calc(var(--u) * 6) 0 #b9b9b4,
    calc(var(--u) * 6) calc(var(--u) * 6) 0 #b9b9b4,
    calc(var(--u) * 7) calc(var(--u) * 6) 0 #b9b9b4,
    calc(var(--u) * 8) calc(var(--u) * 6) 0 #868682,
    calc(var(--u) * 1) calc(var(--u) * 7) 0 #a6a6a1,
    calc(var(--u) * 2) calc(var(--u) * 7) 0 #a6a6a1,
    calc(var(--u) * 3) calc(var(--u) * 7) 0 #a6a6a1,
    calc(var(--u) * 4) calc(var(--u) * 7) 0 #a6a6a1,
    calc(var(--u) * 5) calc(var(--u) * 7) 0 #a6a6a1,
    calc(var(--u) * 6) calc(var(--u) * 7) 0 #a6a6a1,
    calc(var(--u) * 7) calc(var(--u) * 7) 0 #868682,
    calc(var(--u) * 2) calc(var(--u) * 8) 0 #a6a6a1,
    calc(var(--u) * 3) calc(var(--u) * 8) 0 #a6a6a1,
    calc(var(--u) * 4) calc(var(--u) * 8) 0 #a6a6a1,
    calc(var(--u) * 5) calc(var(--u) * 8) 0 #a6a6a1,
    calc(var(--u) * 6) calc(var(--u) * 8) 0 #868682;
}

/* ringed — the ring row runs past the disc on both sides */
.planet--ringed {
    --u: 7px;
    box-shadow: calc(var(--u) * 2) 0 0 #e6e6e2,
    calc(var(--u) * 3) 0 0 #e6e6e2,
    calc(var(--u) * 4) 0 0 #e6e6e2,
    calc(var(--u) * 5) 0 0 #e6e6e2,
    calc(var(--u) * 6) 0 0 #90908c,
    calc(var(--u) * 1) calc(var(--u) * 1) 0 #e6e6e2,
    calc(var(--u) * 2) calc(var(--u) * 1) 0 #e6e6e2,
    calc(var(--u) * 3) calc(var(--u) * 1) 0 #e6e6e2,
    calc(var(--u) * 4) calc(var(--u) * 1) 0 #e6e6e2,
    calc(var(--u) * 5) calc(var(--u) * 1) 0 #e6e6e2,
    calc(var(--u) * 6) calc(var(--u) * 1) 0 #e6e6e2,
    calc(var(--u) * 7) calc(var(--u) * 1) 0 #90908c,
    0 calc(var(--u) * 2) 0 #cfcfca,
    calc(var(--u) * 1) calc(var(--u) * 2) 0 #cfcfca,
    calc(var(--u) * 2) calc(var(--u) * 2) 0 #cfcfca,
    calc(var(--u) * 3) calc(var(--u) * 2) 0 #cfcfca,
    calc(var(--u) * 4) calc(var(--u) * 2) 0 #cfcfca,
    calc(var(--u) * 5) calc(var(--u) * 2) 0 #cfcfca,
    calc(var(--u) * 6) calc(var(--u) * 2) 0 #cfcfca,
    calc(var(--u) * 7) calc(var(--u) * 2) 0 #cfcfca,
    calc(var(--u) * 8) calc(var(--u) * 2) 0 #90908c,
    0 calc(var(--u) * 3) 0 #cfcfca,
    calc(var(--u) * 1) calc(var(--u) * 3) 0 #cfcfca,
    calc(var(--u) * 2) calc(var(--u) * 3) 0 #cfcfca,
    calc(var(--u) * 3) calc(var(--u) * 3) 0 #cfcfca,
    calc(var(--u) * 4) calc(var(--u) * 3) 0 #cfcfca,
    calc(var(--u) * 5) calc(var(--u) * 3) 0 #cfcfca,
    calc(var(--u) * 6) calc(var(--u) * 3) 0 #cfcfca,
    calc(var(--u) * 7) calc(var(--u) * 3) 0 #cfcfca,
    calc(var(--u) * 8) calc(var(--u) * 3) 0 #90908c,
    calc(var(--u) * -3) calc(var(--u) * 4) 0 #c8c8c3,
    calc(var(--u) * -2) calc(var(--u) * 4) 0 #c8c8c3,
    calc(var(--u) * -1) calc(var(--u) * 4) 0 #c8c8c3,
    0 calc(var(--u) * 4) 0 #f7f7f5,
    calc(var(--u) * 1) calc(var(--u) * 4) 0 #f7f7f5,
    calc(var(--u) * 2) calc(var(--u) * 4) 0 #f7f7f5,
    calc(var(--u) * 3) calc(var(--u) * 4) 0 #f7f7f5,
    calc(var(--u) * 4) calc(var(--u) * 4) 0 #f7f7f5,
    calc(var(--u) * 5) calc(var(--u) * 4) 0 #f7f7f5,
    calc(var(--u) * 6) calc(var(--u) * 4) 0 #f7f7f5,
    calc(var(--u) * 7) calc(var(--u) * 4) 0 #f7f7f5,
    calc(var(--u) * 8) calc(var(--u) * 4) 0 #f7f7f5,
    calc(var(--u) * 9) calc(var(--u) * 4) 0 #c8c8c3,
    calc(var(--u) * 10) calc(var(--u) * 4) 0 #c8c8c3,
    calc(var(--u) * 11) calc(var(--u) * 4) 0 #c8c8c3,
    0 calc(var(--u) * 5) 0 #cfcfca,
    calc(var(--u) * 1) calc(var(--u) * 5) 0 #cfcfca,
    calc(var(--u) * 2) calc(var(--u) * 5) 0 #cfcfca,
    calc(var(--u) * 3) calc(var(--u) * 5) 0 #cfcfca,
    calc(var(--u) * 4) calc(var(--u) * 5) 0 #cfcfca,
    calc(var(--u) * 5) calc(var(--u) * 5) 0 #cfcfca,
    calc(var(--u) * 6) calc(var(--u) * 5) 0 #cfcfca,
    calc(var(--u) * 7) calc(var(--u) * 5) 0 #cfcfca,
    calc(var(--u) * 8) calc(var(--u) * 5) 0 #90908c,
    0 calc(var(--u) * 6) 0 #bcbcb7,
    calc(var(--u) * 1) calc(var(--u) * 6) 0 #bcbcb7,
    calc(var(--u) * 2) calc(var(--u) * 6) 0 #bcbcb7,
    calc(var(--u) * 3) calc(var(--u) * 6) 0 #bcbcb7,
    calc(var(--u) * 4) calc(var(--u) * 6) 0 #bcbcb7,
    calc(var(--u) * 5) calc(var(--u) * 6) 0 #bcbcb7,
    calc(var(--u) * 6) calc(var(--u) * 6) 0 #bcbcb7,
    calc(var(--u) * 7) calc(var(--u) * 6) 0 #bcbcb7,
    calc(var(--u) * 8) calc(var(--u) * 6) 0 #90908c,
    calc(var(--u) * 1) calc(var(--u) * 7) 0 #bcbcb7,
    calc(var(--u) * 2) calc(var(--u) * 7) 0 #bcbcb7,
    calc(var(--u) * 3) calc(var(--u) * 7) 0 #bcbcb7,
    calc(var(--u) * 4) calc(var(--u) * 7) 0 #bcbcb7,
    calc(var(--u) * 5) calc(var(--u) * 7) 0 #bcbcb7,
    calc(var(--u) * 6) calc(var(--u) * 7) 0 #bcbcb7,
    calc(var(--u) * 7) calc(var(--u) * 7) 0 #90908c,
    calc(var(--u) * 2) calc(var(--u) * 8) 0 #bcbcb7,
    calc(var(--u) * 3) calc(var(--u) * 8) 0 #bcbcb7,
    calc(var(--u) * 4) calc(var(--u) * 8) 0 #bcbcb7,
    calc(var(--u) * 5) calc(var(--u) * 8) 0 #bcbcb7,
    calc(var(--u) * 6) calc(var(--u) * 8) 0 #90908c;
}

/* ice giant */
.planet--ice {
    --u: 7px;
    box-shadow: calc(var(--u) * 2) 0 0 #d8d8d4,
    calc(var(--u) * 3) 0 0 #d8d8d4,
    calc(var(--u) * 4) 0 0 #7a7a76,
    calc(var(--u) * 1) calc(var(--u) * 1) 0 #d8d8d4,
    calc(var(--u) * 2) calc(var(--u) * 1) 0 #d8d8d4,
    calc(var(--u) * 3) calc(var(--u) * 1) 0 #d8d8d4,
    calc(var(--u) * 4) calc(var(--u) * 1) 0 #d8d8d4,
    calc(var(--u) * 5) calc(var(--u) * 1) 0 #7a7a76,
    0 calc(var(--u) * 2) 0 #b6b6b1,
    calc(var(--u) * 1) calc(var(--u) * 2) 0 #b6b6b1,
    calc(var(--u) * 2) calc(var(--u) * 2) 0 #b6b6b1,
    calc(var(--u) * 3) calc(var(--u) * 2) 0 #b6b6b1,
    calc(var(--u) * 4) calc(var(--u) * 2) 0 #b6b6b1,
    calc(var(--u) * 5) calc(var(--u) * 2) 0 #b6b6b1,
    calc(var(--u) * 6) calc(var(--u) * 2) 0 #7a7a76,
    0 calc(var(--u) * 3) 0 #b6b6b1,
    calc(var(--u) * 1) calc(var(--u) * 3) 0 #b6b6b1,
    calc(var(--u) * 2) calc(var(--u) * 3) 0 #b6b6b1,
    calc(var(--u) * 3) calc(var(--u) * 3) 0 #b6b6b1,
    calc(var(--u) * 4) calc(var(--u) * 3) 0 #b6b6b1,
    calc(var(--u) * 5) calc(var(--u) * 3) 0 #b6b6b1,
    calc(var(--u) * 6) calc(var(--u) * 3) 0 #7a7a76,
    0 calc(var(--u) * 4) 0 #9a9a95,
    calc(var(--u) * 1) calc(var(--u) * 4) 0 #9a9a95,
    calc(var(--u) * 2) calc(var(--u) * 4) 0 #9a9a95,
    calc(var(--u) * 3) calc(var(--u) * 4) 0 #9a9a95,
    calc(var(--u) * 4) calc(var(--u) * 4) 0 #9a9a95,
    calc(var(--u) * 5) calc(var(--u) * 4) 0 #9a9a95,
    calc(var(--u) * 6) calc(var(--u) * 4) 0 #7a7a76,
    calc(var(--u) * 1) calc(var(--u) * 5) 0 #b6b6b1,
    calc(var(--u) * 2) calc(var(--u) * 5) 0 #b6b6b1,
    calc(var(--u) * 3) calc(var(--u) * 5) 0 #b6b6b1,
    calc(var(--u) * 4) calc(var(--u) * 5) 0 #b6b6b1,
    calc(var(--u) * 5) calc(var(--u) * 5) 0 #7a7a76,
    calc(var(--u) * 2) calc(var(--u) * 6) 0 #9a9a95,
    calc(var(--u) * 3) calc(var(--u) * 6) 0 #9a9a95,
    calc(var(--u) * 4) calc(var(--u) * 6) 0 #7a7a76;
}

/* a small blue-green world */
.planet--terra {
    --u: 6px;
    box-shadow: calc(var(--u) * 1) 0 0 #c6c6c1,
    calc(var(--u) * 2) 0 0 #c6c6c1,
    calc(var(--u) * 3) 0 0 #7f7f7b,
    0 calc(var(--u) * 1) 0 #a8a8a3,
    calc(var(--u) * 1) calc(var(--u) * 1) 0 #e4e4e0,
    calc(var(--u) * 2) calc(var(--u) * 1) 0 #a8a8a3,
    calc(var(--u) * 3) calc(var(--u) * 1) 0 #a8a8a3,
    calc(var(--u) * 4) calc(var(--u) * 1) 0 #7f7f7b,
    0 calc(var(--u) * 2) 0 #a8a8a3,
    calc(var(--u) * 1) calc(var(--u) * 2) 0 #a8a8a3,
    calc(var(--u) * 2) calc(var(--u) * 2) 0 #a8a8a3,
    calc(var(--u) * 3) calc(var(--u) * 2) 0 #e4e4e0,
    calc(var(--u) * 4) calc(var(--u) * 2) 0 #7f7f7b,
    0 calc(var(--u) * 3) 0 #a8a8a3,
    calc(var(--u) * 1) calc(var(--u) * 3) 0 #e4e4e0,
    calc(var(--u) * 2) calc(var(--u) * 3) 0 #e4e4e0,
    calc(var(--u) * 3) calc(var(--u) * 3) 0 #a8a8a3,
    calc(var(--u) * 4) calc(var(--u) * 3) 0 #7f7f7b,
    calc(var(--u) * 1) calc(var(--u) * 4) 0 #a8a8a3,
    calc(var(--u) * 2) calc(var(--u) * 4) 0 #a8a8a3,
    calc(var(--u) * 3) calc(var(--u) * 4) 0 #7f7f7b;
}

/* a dim red dwarf */
.planet--dwarf {
    --u: 6px;
    box-shadow: calc(var(--u) * 1) 0 0 #6f6f6b,
    calc(var(--u) * 2) 0 0 #545450,
    0 calc(var(--u) * 1) 0 #6f6f6b,
    calc(var(--u) * 1) calc(var(--u) * 1) 0 #6f6f6b,
    calc(var(--u) * 2) calc(var(--u) * 1) 0 #6f6f6b,
    calc(var(--u) * 3) calc(var(--u) * 1) 0 #545450,
    0 calc(var(--u) * 2) 0 #6f6f6b,
    calc(var(--u) * 1) calc(var(--u) * 2) 0 #6f6f6b,
    calc(var(--u) * 2) calc(var(--u) * 2) 0 #6f6f6b,
    calc(var(--u) * 3) calc(var(--u) * 2) 0 #545450,
    calc(var(--u) * 1) calc(var(--u) * 3) 0 #6f6f6b,
    calc(var(--u) * 2) calc(var(--u) * 3) 0 #545450;
}

/* ── The ideas ─────────────────────────────────────────────────────────── */

.saurus__ideas {
    position: absolute;
    inset: 0;
}

.idea {
    position: absolute;
    left: var(--x);
    top: var(--y);
    padding: 0.4375rem 0.8125rem;
    border: 1px solid rgba(247, 247, 245, 0.28);
    border-radius: 999px;
    /* Opaque, not tinted: these sit over a star field now, and a translucent fill
     * would let pixels show through the text. Matches the band's navy. */
    color: #f7f7f5;
    font-size: clamp(0.75rem, 1.1vw, 0.875rem);
    line-height: var(--leading-tight-ui);
    white-space: nowrap;
    transform: translate(-50%, -50%);
    font-family: "Press Start 2P", system-ui;
}

.lets-go{
    border: none;
    text-decoration: underline;
}

/* Only once the script is driving does anything start hidden — otherwise the
 * banner is just a static, complete graphic. */
.saurus[data-js="true"] .idea {
    opacity: 0;
    transform: translate(-50%, -50%) translate(var(--dx), var(--dy)) scale(0.86);
    transition: opacity 0.8s var(--ease-soft),
               transform 0.8s var(--ease-soft);
}

/* Staggered reveal: each idea delays a bit more */
.saurus[data-js="true"] .idea:nth-child(1) { transition-delay: 0.5s; }
.saurus[data-js="true"] .idea:nth-child(2) { transition-delay: 0.7s; }
.saurus[data-js="true"] .idea:nth-child(3) { transition-delay: 0.9s; }
.saurus[data-js="true"] .idea:nth-child(4) { transition-delay: 1.1s; }
.saurus[data-js="true"] .idea:nth-child(5) { transition-delay: 1.3s; }
.saurus[data-js="true"] .idea:nth-child(6) { transition-delay: 1.5s; }
.saurus[data-js="true"] .idea:nth-child(7) { transition-delay: 1.7s; }

/* When active, all ideas show at once (with stagger) */
.saurus[data-active="true"][data-js="true"] .idea {
    opacity: 1;
    transform: translate(-50%, -50%);
}

/* Remove stagger delay on exit so they vanish together */
.saurus[data-js="true"]:not([data-active="true"]) .idea {
    transition-delay: 0s;
}

/* ═══ Plans ══════════════════════════════════════════════════════════════ */

.plans {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
    align-items: stretch;
}

.plan {
    display: flex;
    flex-direction: column;
    padding: 1.75rem 1.5rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
    background: var(--color-surface);
    box-shadow: var(--shadow-card);
}

/* The recommended tier is marked with ink weight, not with colour. */
.plan--featured {
    border-color: var(--color-brand-500);
    box-shadow: var(--shadow-elevated);
}

.plan__badge {
    position: absolute;
    top: -0.6875rem;
    left: 1.5rem;
    padding: 0.1875rem 0.5rem;
    border-radius: var(--radius-sm);
    background: var(--color-brand-500);
    color: var(--color-on-accent);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.02em;
}

.plan--featured {
    position: relative;
}

.plan__name {
    font-size: 1.25rem;
}

.plan__price {
    display: flex;
    align-items: baseline;
    gap: 0.3125rem;
    margin-top: 1rem;
}

.plan__amount {
    font-size: 2rem;
    font-weight: 500;
    letter-spacing: -0.03em;
    line-height: 1;
}

.plan__per {
    color: var(--color-ink-faint);
    font-size: 0.875rem;
}

.plan__body {
    margin-top: 0.75rem;
    color: var(--color-ink-muted);
    font-size: 0.9375rem;
}

.plan__features {
    margin-top: 1.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--color-border-soft);
    display: grid;
    gap: 0.625rem;
}

.plan__features li {
    display: flex;
    gap: 0.625rem;
    color: var(--color-ink-muted);
    font-size: 0.875rem;
    line-height: var(--leading-tight-ui);
}

.plan__features svg {
    width: 1rem;
    height: 1rem;
    margin-top: 0.125rem;
    flex: none;
    color: var(--color-ink);
}

.plan__cta {
    margin-top: auto;
    padding-top: 1.75rem;
}

.plan__cta .btn {
    width: 100%;
}

.plans__note {
    margin-top: 1.5rem;
    color: var(--color-ink-faint);
    font-size: 0.875rem;
    text-align: center;
}

.plans__archive-link {
    color: var(--color-ink);
    font-weight: 500;
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: opacity var(--duration-fast) var(--ease-soft);
}

.plans__archive-link:hover {
    opacity: 0.75;
}

/* ── Talk to Us card ──────────────────────────────────────────────────── */

.talk-card {
    max-width: 54rem;
    margin-inline: auto;
    padding: clamp(2rem, 4vw, 3rem);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
    background: var(--color-surface);
    box-shadow: var(--shadow-elevated);
    position: relative;
    overflow: hidden;
}

.talk-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-brand-300), var(--color-brand-600), var(--color-brand-300));
}

.talk-card__header {
    text-align: center;
    max-width: 38rem;
    margin-inline: auto;
}

.talk-card__badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    background: var(--color-brand-100);
    color: var(--color-brand-600);
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

html[data-theme="dark"] .talk-card__badge {
    background: var(--color-brand-200);
    color: var(--color-ink);
}

.talk-card__title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 600;
    letter-spacing: -0.03em;
    color: var(--color-ink);
}

.talk-card__body {
    margin-top: 0.875rem;
    color: var(--color-ink-muted);
    font-size: 1.0625rem;
    line-height: 1.6;
}

.talk-card__features {
    margin-top: 2rem;
    padding-top: 1.75rem;
    border-top: 1px solid var(--color-border-soft);
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem 1.5rem;
}

.talk-card__features li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    color: var(--color-ink);
    font-size: 0.9375rem;
    font-weight: 500;
}

.talk-card__features svg {
    width: 1.125rem;
    height: 1.125rem;
    margin-top: 0.2rem;
    flex: none;
    color: var(--color-success);
}

.talk-card__actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    margin-top: 2.25rem;
}

@media (max-width: 48rem) {
    .talk-card__features {
        grid-template-columns: 1fr;
    }
}

/* ═══ Closing band ═══════════════════════════════════════════════════════ */

.cta-band {
    padding: clamp(3rem, 7vw, 5rem) 0;
}

.cta-band__inner {
    padding: clamp(2.5rem, 6vw, 4rem) 2rem;
    border-radius: var(--radius-2xl);
    background: var(--color-brand-500);
    color: var(--color-on-accent);
    text-align: center;
}

.cta-band__title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
}

.cta-band__body {
    max-width: 46ch;
    margin: 1rem auto 0;
    color: color-mix(in srgb, var(--color-on-accent) 74%, transparent);
    font-size: 1.0625rem;
}

.cta-band .btn--invert {
    margin-top: 2rem;
    background: var(--color-on-accent);
    color: var(--color-brand-500);
}

.cta-band .btn--invert:hover {
    background: color-mix(in srgb, var(--color-on-accent) 88%, var(--color-brand-500));
}

/* ═══ Footer ═════════════════════════════════════════════════════════════ */

.footer {
    border-top: 1px solid var(--color-border);
    background: var(--color-surface-alt);
    padding: clamp(3rem, 6vw, 4.5rem) 0 2rem;
}

.footer__top {
    display: grid;
    grid-template-columns: 1.4fr repeat(4, 1fr);
    gap: 2.5rem 1.5rem;
}

.footer__brand {
    max-width: 22rem;
}

.footer__tagline {
    margin-top: 1rem;
    color: var(--color-ink-muted);
    font-size: 0.9375rem;
}

.footer__col-title {
    margin-bottom: 1rem;
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-ink-faint);
}

.footer__list {
    display: grid;
    gap: 0.625rem;
}

.footer__list a {
    color: var(--color-ink-muted);
    font-size: 0.9375rem;
}

.footer__list a:hover {
    color: var(--color-ink);
}

.footer__bottom {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1rem;
    margin-top: clamp(2.5rem, 5vw, 3.5rem);
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border-soft);
    color: var(--color-ink-faint);
    font-size: 0.875rem;
}

.footer__legal {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-inline-start: auto;
}

.footer__legal a:hover {
    color: var(--color-ink);
}

/* The app ships en + Arabic (RTL); the picker mirrors that. */
.lang {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.lang select {
    appearance: none;
    padding: 0.375rem 1.75rem 0.375rem 0.625rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-surface);
    color: var(--color-ink-muted);
    font: inherit;
    font-size: 0.875rem;
    cursor: pointer;
    background-image: linear-gradient(45deg, transparent 50%, currentColor 50%),
    linear-gradient(135deg, currentColor 50%, transparent 50%);
    background-position: right 0.875rem center, right 0.625rem center;
    background-size: 0.3125rem 0.3125rem;
    background-repeat: no-repeat;
}

/* ═══ Reveal-on-scroll ═══════════════════════════════════════════════════ */

.reveal {
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 500ms var(--ease-soft), transform 500ms var(--ease-soft);
}

.reveal[data-visible="true"] {
    opacity: 1;
    transform: none;
}

/* ═══ Responsive ═════════════════════════════════════════════════════════ */

@media (max-width: 60rem) {
    .grid-3,
    .steps,
    .plans {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .footer__brand {
        grid-column: 1 / -1;
    }
}

@media (max-width: 48rem) {
    .header__inner {
        gap: 0.5rem;
    }

    .header__nav {
        display: none;
    }

    .header__toggle {
        display: inline-flex;
    }

    /* Header room is tight; the drawer carries the theme control instead. */
    #theme-toggle {
        display: none;
    }

    .duo,
    .grid-3,
    .steps,
    .plans {
        grid-template-columns: 1fr;
    }

    /* There is no room to fan seven chips around the animal at phone width, so
     * the ideas become a plain wrapped row beneath it — still revealed in
     * sequence by the same scroll progress, just not positioned in space. */
    .saurus {
        /* no tall scroll track needed — just natural height */
    }

    .saurus__band {
        --band-min: calc(var(--vw, 100vw) - 2rem);
        height: min(86vh, 34rem);
    }

    .saurus__dino {
        /* Centred with auto margins rather than a -50% translate, because the swim
         * animation owns `transform` and would drop the centring. `margin-inline`
         * also drops the desktop rule's negative left margin, which is fine here:
         * auto margins centre the whole box, exhaust space included. */
        --dino-w: min(28%, 5.6rem);

        left: 0;
        right: 0;
        margin-inline: auto;
        bottom: auto;
        top: 22%;
    }

    .saurus__ideas {
        position: absolute;
        inset: auto 1rem 1.5rem;
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.5rem;
    }

    .idea {
        position: static;
        transform: none;
    }

    .lets-go{
        border: none;
        text-decoration: underline;
    }

    .saurus[data-js="true"] .idea {
        transform: scale(0.86);
    }

    .saurus[data-active="true"][data-js="true"] .idea {
        transform: none;
    }

    .footer__bottom {
        flex-direction: column;
        align-items: flex-start;
    }

    .footer__legal {
        margin-inline-start: 0;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        transition-duration: 1ms !important;
        animation-duration: 1ms !important;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }

    /* No scroll-driven motion: the banner collapses to an ordinary full-width
     * section, sized to its content, with the animal and every idea already
     * shown. The tall track and the sticky stage both go away, so there is no
     * empty scrolling left behind. */
    .saurus {
        /* already auto-height in normal flow */
    }

    .saurus__stage {
        position: static;
        height: auto;
    }

    .saurus__band {
        width: var(--vw, 100vw);
        height: auto;
        /* Matches the animated band's height, because the ideas are placed as
         * percentages of it — a shorter band would ride them up into the title. */
        min-height: 40rem;
        border-radius: 0;
    }

    .saurus__dino {
        transform: none;
    }

    /* No flicker: the first frame stays lit so the raptor still reads as under
     * thrust, it just isn't animated. */
    .dino__flame {
        animation: none;
    }

    .dino__flame--2,
    .dino__flame--3 {
        opacity: 0;
    }
}

/* The reveal is scroll-driven, so print (and any capture that never scrolls)
 * must see everything regardless of observer state. */
@media print {
    .reveal {
        opacity: 1 !important;
        transform: none !important;
    }

    .header {
        position: static;
    }
}