/* ---------- Tokens ---------- */
:root {
    /* light (default) */
    --paper: #f2f3f1;
    --surface: #ffffff;
    --ink: #1b2024;
    --muted: #5c656c;
    --line: #cdd2d4;
    --accent: #f2b705;       /* classic yellow, changed by the "fruit" picker */
    --on-accent: #14181b;
    --dot: rgba(27, 32, 36, .09);
    --glow: 22%;
    --shadow: 0 1px 2px rgba(20, 24, 27, .06), 0 8px 24px -12px rgba(20, 24, 27, .18);

    /* type */
    --font-display: 'Barlow Condensed', 'Arial Narrow', sans-serif;
    --font-body: 'Barlow', system-ui, -apple-system, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
    --font-heading: var(--font-display); /* changed by the "movie genre" picker */

    /* shape, changed by the "edge style" picker */
    --radius: 10px;

    --step--1: 0.8125rem;
    --step-0: 1.0625rem;
    --step-1: 1.3rem;
    --step-3: clamp(2.25rem, 5vw, 3rem);
    --step-5: clamp(3.5rem, 12vw, 6.5rem);

    color-scheme: light;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-mode="light"]) {
        --paper: #14181b;
        --surface: #1c2125;
        --ink: #e7e9ea;
        --muted: #98a1a7;
        --line: #2f363b;
        --dot: rgba(231, 233, 234, .07);
        --glow: 14%;
        --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 10px 30px -12px rgba(0, 0, 0, .6);
        color-scheme: dark;
    }
}

:root[data-mode="dark"] {
    --paper: #14181b;
    --surface: #1c2125;
    --ink: #e7e9ea;
    --muted: #98a1a7;
    --line: #2f363b;
    --dot: rgba(231, 233, 234, .07);
    --glow: 14%;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 10px 30px -12px rgba(0, 0, 0, .6);
    color-scheme: dark;
}

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    padding-inline: max(16px, 4vw);
    background-color: var(--paper);
    background-image:
        radial-gradient(60rem 36rem at 100% -8%, color-mix(in srgb, var(--accent) var(--glow), transparent), transparent 70%),
        radial-gradient(var(--dot) 1px, transparent 1.4px);
    background-size: 100% 100%, 22px 22px;
    background-repeat: no-repeat, repeat;
    min-height: 100vh;
    color: var(--ink);
    font-family: var(--font-body);
    font-size: var(--step-0);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    transition: background-color .3s, color .3s;
}

main,
.topbar,
.footer {
    max-width: 960px;
    margin-inline: auto;
}

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

a {
    color: inherit;
    text-decoration-color: var(--accent);
    text-decoration-thickness: 2px;
    text-underline-offset: 3px;
}

a:hover {
    text-decoration-thickness: 4px;
}

:focus-visible {
    outline: 3px solid var(--accent);
    outline-offset: 3px;
}

.mono {
    font-family: var(--font-mono);
    font-size: var(--step--1);
    letter-spacing: .02em;
}

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

.display {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1;
    letter-spacing: .01em;
    text-wrap: balance;
    margin: 0;
}

.eyebrow {
    margin: 0 0 .75rem;
    text-transform: uppercase;
    letter-spacing: .08em;
}

.skip-link {
    position: absolute;
    left: 16px;
    top: -100px;
    padding: .5rem 1rem;
    background: var(--accent);
    color: var(--on-accent);
    z-index: 10;
}

.skip-link:focus {
    top: 16px;
}

/* ---------- Top bar ---------- */
.topbar {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: .75rem 1.5rem;
    padding-block: 1.25rem;
    border-bottom: 1px solid var(--line);
}

.brand {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.375rem;
    letter-spacing: .02em;
    text-transform: uppercase;
    text-decoration: none;
}

.brand::after {
    content: "";
    display: inline-block;
    width: .4em;
    height: .4em;
    margin-left: .15em;
    background: var(--accent);
    border-radius: 50%;
}

.topbar nav {
    display: flex;
    gap: 1.25rem;
    font-weight: 600;
}

.topbar nav a {
    text-decoration: none;
}

.topbar nav a:hover {
    text-decoration: underline;
    text-decoration-color: var(--accent);
}

/* ---------- Hero ---------- */
.hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 27rem);
    gap: clamp(1.5rem, 5vw, 4rem);
    align-items: end;
    padding-block: clamp(3rem, 10vw, 7rem);
}

.hero-text h1 {
    font-size: var(--step-5);
    text-transform: uppercase;
}

.hero-text h1::after {
    content: ".";
    color: var(--accent);
}

.lede {
    font-size: var(--step-1);
    line-height: 1.45;
    max-width: 34ch;
    margin: 1.25rem 0 0;
}

/* facts table */
.title-block {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin: 0;
    background: var(--surface);
    border: 1.5px solid var(--ink);
    border-radius: min(var(--radius), 12px);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.title-block div {
    padding: .6rem .9rem .7rem;
    border-bottom: 1px solid var(--line);
}

.title-block div:nth-child(odd) {
    border-right: 1px solid var(--line);
}

.title-block div:nth-last-child(-n + 2) {
    border-bottom: 0;
}

.title-block dt {
    font-family: var(--font-mono);
    font-size: .6875rem;
    text-transform: uppercase;
    letter-spacing: .1em;
    color: var(--muted);
}

.title-block dd {
    margin: 0;
    font-weight: 600;
}

/* ---------- Sections ---------- */
.block {
    padding-block: clamp(2.5rem, 6vw, 4rem);
    border-top: 1px solid var(--line);
}

.block h2 {
    font-size: var(--step-3);
    margin-bottom: 1.25rem;
}

.prose {
    max-width: 62ch;
}

.prose p {
    margin: 0 0 1rem;
}

strong {
    font-weight: 600;
    background: linear-gradient(transparent 62%, color-mix(in srgb, var(--accent) 45%, transparent) 0);
}

/* ---------- Tweak panel ---------- */
.panel {
    margin-top: 1.75rem;
    padding: clamp(1rem, 3vw, 1.5rem);
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.5rem 2rem;
    transition: border-radius .3s;
}

.panel fieldset {
    border: 0;
    margin: 0;
    padding: 0;
    min-width: 0;
}

.panel legend {
    padding: 0;
    margin-bottom: .6rem;
    color: var(--muted);
}

.chips {
    display: flex;
    flex-wrap: wrap;
    gap: .4rem;
}

.chip input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.chip span {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    padding: .3rem .75rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    font-size: .9375rem;
    cursor: pointer;
    transition: border-color .15s, background-color .15s, border-radius .3s, transform .15s;
}

.chip span:hover {
    border-color: var(--ink);
    transform: translateY(-1px);
}

.chip input:checked + span {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--on-accent);
    font-weight: 600;
    box-shadow: 0 4px 12px -6px var(--accent);
}

.chip input:focus-visible + span {
    outline: 3px solid var(--accent);
    outline-offset: 2px;
}

.swatch {
    width: .8rem;
    height: .8rem;
    border-radius: 50%;
    border: 1px solid color-mix(in srgb, var(--ink) 25%, transparent);
}

.chip input:checked + span .swatch {
    border: 2px solid var(--on-accent);
}

.panel-foot {
    grid-column: 1 / -1;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: .75rem;
    padding-top: 1rem;
    border-top: 1px dashed var(--line);
}

.panel-foot code {
    color: var(--muted);
    overflow-wrap: anywhere;
}

/* ---------- Buttons & links ---------- */
.links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    gap: .75rem;
}

.btn,
.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: .6rem;
    padding: .85rem 1.4rem;
    border-radius: var(--radius);
    font: 600 1rem var(--font-body);
    letter-spacing: .01em;
    text-decoration: none;
    cursor: pointer;
    transition: transform .18s, box-shadow .18s, border-color .18s, background-color .18s, border-radius .3s;
}

.btn {
    background: var(--accent);
    color: var(--on-accent);
    border: 1.5px solid color-mix(in srgb, var(--accent) 80%, var(--ink));
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, .35),
        0 8px 20px -10px var(--accent);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, .35),
        0 14px 28px -12px var(--accent);
}

.btn-ghost {
    background: var(--surface);
    color: var(--ink);
    border: 1.5px solid var(--line);
    box-shadow: var(--shadow);
}

.btn-ghost:hover {
    transform: translateY(-2px);
    border-color: var(--ink);
}

.btn:active,
.btn-ghost:active {
    transform: translateY(0);
}

/* the arrow slides out on hover */
.btn span[aria-hidden],
.btn-ghost span[aria-hidden] {
    display: inline-grid;
    place-items: center;
    width: 1.5rem;
    height: 1.5rem;
    border-radius: 50%;
    font-size: .85rem;
    transition: transform .18s;
}

.btn span[aria-hidden] {
    background: var(--on-accent);
    color: var(--accent);
}

.btn-ghost span[aria-hidden] {
    background: var(--ink);
    color: var(--surface);
}

.btn:hover span[aria-hidden],
.btn-ghost:hover span[aria-hidden] {
    transform: translate(2px, -2px);
}

.panel-foot .btn-ghost {
    padding: .45rem 1.1rem;
    box-shadow: none;
}

/* ---------- Footer ---------- */
.footer {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: .5rem 1.5rem;
    padding-block: 1.5rem 2.5rem;
    border-top: 1px solid var(--line);
    color: var(--muted);
}

@media (max-width: 420px) {
    .links li,
    .links .btn,
    .links .btn-ghost {
        width: 100%;
        justify-content: space-between;
    }
}

/* ---------- Small screens ---------- */
@media (max-width: 720px) {
    .hero {
        grid-template-columns: 1fr;
    }

    .panel {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 420px) {
    .title-block {
        grid-template-columns: 1fr;
    }

    .title-block div:nth-child(odd) {
        border-right: 0;
    }

    .title-block div:nth-last-child(2) {
        border-bottom: 1px solid var(--line);
    }
}

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