/*
 * Vibe website: core. Loaded by every page, before that page's own sheet.
 *
 * Order: fonts, tokens, base, layout, shared components (skip link, nav, footer, button, link,
 * command chip, badge, card). Everything a single area needs lives in that area's sheet:
 * marketing.css, legal.css or app.css. The scale and the reasoning are in DESIGN.md.
 */

/* --- fonts ---------------------------------------------------------------------------------- */

@font-face {
  font-family: "Outfit";
  src: url("../fonts/outfit-latin.woff2") format("woff2");
  font-weight: 100 900;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC,
    U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212,
    U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Outfit";
  src: url("../fonts/outfit-latin-ext.woff2") format("woff2");
  font-weight: 100 900;
  font-display: swap;
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304,
    U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0,
    U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* --- tokens --------------------------------------------------------------------------------- */

:root {
  /* The site is dark only; this also puts native controls and scrollbars in dark chrome. */
  color-scheme: dark;

  /* Colour. Three grounds, three inks, one accent. Every ink clears 4.5:1 on every ground
     it is allowed on; the table is in DESIGN.md. */
  --ground: #0b0b0d;
  --surface: #131317;
  --surface-2: #1b1b20;
  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.17);
  /* The edge of a control someone has to find: 3.4:1 against the ground. */
  --line-control: rgba(255, 255, 255, 0.38);
  --ink: #f5f2f3;
  --ink-2: #aba5a9;
  --ink-3: #8d868b;
  --accent: #f03362;
  --accent-hover: #f24b75;
  --accent-ink: #14090c;
  --accent-soft: color-mix(in srgb, var(--accent) 16%, var(--surface));
  --accent-line: color-mix(in srgb, var(--accent) 45%, transparent);
  /* The accent as text or a glyph: a fifth of the way to ink, so it also reads on the raised surfaces, as in the player. */
  --accent-text: color-mix(in srgb, var(--accent) 80%, var(--ink));
  /* What a quiet control lays under itself: at rest, and under the pointer. */
  --fill: rgba(255, 255, 255, 0.07);
  --fill-hover: rgba(255, 255, 255, 0.13);
  --danger: #ff8a8a;
  --gold: #f5c542;

  /* Type. One family; a major-third scale from a 17px body, fluid from step 3 up. */
  --font: "Outfit", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", "Segoe UI Mono", Menlo, Consolas, monospace;
  --step--2: 0.8125rem;
  --step--1: 0.9375rem;
  --step-0: 1.0625rem;
  --step-1: 1.25rem;
  --step-2: 1.5rem;
  --step-3: clamp(1.75rem, 1.4rem + 1.4vw, 2.25rem);
  --step-4: clamp(2rem, 1.3rem + 3vw, 3.5rem);
  --step-5: clamp(2.5rem, 1.2rem + 5.6vw, 5.5rem);
  --light: 300;
  --regular: 400;
  --medium: 500;
  --bold: 600;
  --leading-tight: 1.02;
  --leading-snug: 1.25;
  --leading: 1.55;
  --track-display: -0.04em;
  --track-heading: -0.02em;
  --measure: 62ch;

  /* Space, on a 4px base. */
  --s-1: 0.25rem;
  --s-2: 0.5rem;
  --s-3: 0.75rem;
  --s-4: 1rem;
  --s-5: 1.5rem;
  --s-6: 2rem;
  --s-7: 3rem;
  --s-8: 4rem;
  --s-9: 6rem;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --section: clamp(4.5rem, 10vw, 9rem);
  --max: 80rem;
  --max-prose: 46rem;
  --target: 2.75rem; /* 44px, the smallest thing a finger is asked to hit */

  /* Radii: small for controls and thumbnails, medium for surfaces, large for the stage, full
     for pills. Nothing else. */
  --r-1: 0.5rem;
  --r-2: 0.75rem;
  --r-3: 1.25rem;
  --r-full: 999px;

  /* Elevation: a hairline for things on the page, a shadow for things above it. */
  --ring: 0 0 0 1px var(--line);
  --float: 0 0 0 1px var(--line-strong), 0 0.75rem 2.5rem rgba(0, 0, 0, 0.6);
  --stage-glow: 0 3rem 6rem -2rem color-mix(in srgb, var(--accent) 18%, transparent);

  /* Motion. */
  --t-fast: 120ms;
  --t: 200ms;
  --t-slow: 600ms;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);

  /* Layers. */
  --z-bar: 40;
  --z-toast: 50;
  --z-skip: 100;
}

/* --- base ----------------------------------------------------------------------------------- */

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

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

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font: var(--regular) var(--step-0) / var(--leading) var(--font);
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4,
h5,
p,
ul,
ol {
  margin: 0;
}

h1,
h2,
h3 {
  font-weight: var(--bold);
  letter-spacing: var(--track-heading);
  line-height: var(--leading-snug);
  text-wrap: balance;
}

a {
  color: inherit;
}

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

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

a,
button,
summary,
input,
select,
label {
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

/* An anchor that is jumped to keeps some air above it. */
[id] {
  scroll-margin-top: var(--s-5);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* The attribute has to win over any display a class sets, or hiding by attribute hides nothing. */
[hidden] {
  display: none !important;
}

/* --- layout --------------------------------------------------------------------------------- */

.wrap {
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: max(var(--gutter), env(safe-area-inset-left)) max(var(--gutter), env(safe-area-inset-right));
}

.stack > * + * {
  margin-top: var(--stack, var(--s-4));
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

/* --- skip link ------------------------------------------------------------------------------ */

.skip {
  position: absolute;
  top: var(--s-3);
  left: var(--s-3);
  z-index: var(--z-skip);
  padding: var(--s-3) var(--s-4);
  border-radius: var(--r-1);
  background: var(--surface-2);
  box-shadow: var(--float);
  text-decoration: none;
  transform: translateY(-200%);
}
.skip:focus {
  transform: none;
}

/* --- nav ------------------------------------------------------------------------------------ */

.nav {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  min-height: 4.5rem;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  min-height: var(--target);
  margin-right: auto;
  font-size: var(--step-1);
  font-weight: var(--bold);
  letter-spacing: var(--track-heading);
  text-decoration: none;
}
.mark {
  width: 1.75rem;
  height: 1.75rem;
  flex: none;
  fill: var(--accent);
}
.nav-links {
  display: flex;
  align-items: center;
}
.nav-links a {
  display: inline-flex;
  align-items: center;
  min-height: var(--target);
  padding-inline: var(--s-3);
  color: var(--ink-2);
  font-size: var(--step--1);
  text-decoration: none;
  transition: color var(--t-fast);
}
.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--ink);
}
/* The links that can wait leave first; the brand and the action never do. */
@media (max-width: 40rem) {
  .nav-links .nav-extra {
    display: none;
  }
  .nav-links a {
    padding-inline: var(--s-2);
  }
}

/* At 320px the brand, one link and the action have to share 280px. */
@media (max-width: 24rem) {
  .nav {
    gap: var(--s-1);
  }
  .nav-brand {
    font-size: var(--step-0);
  }
  .nav-links a {
    padding-inline: var(--s-2);
  }
  .nav .btn-small {
    padding-inline: var(--s-3);
  }
}

/* --- button --------------------------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-2);
  min-height: 3rem;
  padding-inline: var(--s-5);
  border: 0;
  border-radius: var(--r-full);
  font-size: var(--step-0);
  font-weight: var(--bold);
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition:
    background var(--t-fast),
    color var(--t-fast),
    box-shadow var(--t-fast),
    transform var(--t-fast) var(--ease);
}
.btn:active {
  transform: scale(0.98);
}
.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
}
.btn-primary:hover {
  background: var(--accent-hover);
}
.btn-ghost {
  background: var(--fill);
  color: var(--ink);
  font-weight: var(--medium);
}
.btn-ghost:hover {
  background: var(--fill-hover);
}
/* Something that cannot be taken back. The quiet one asks ("Delete…"); the filled one is the answer, and
   carries the dark ink: the danger colour is a light one, and white on it would be 2.3:1. */
.btn-danger-quiet {
  background: var(--fill);
  color: var(--danger);
  font-weight: var(--medium);
}
.btn-danger-quiet:hover {
  background: var(--fill-hover);
}
.btn-danger {
  background: var(--danger);
  color: var(--accent-ink);
}
.btn-danger:hover {
  background: color-mix(in srgb, var(--danger) 85%, #fff);
}
.btn-small {
  min-height: var(--target);
  padding-inline: var(--s-4);
  font-size: var(--step--1);
}
.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

/* --- link ----------------------------------------------------------------------------------- */

.link {
  display: inline-flex;
  align-items: center;
  min-height: var(--target);
  color: var(--ink-2);
  text-decoration-color: var(--line-strong);
  text-underline-offset: 0.25em;
  transition: color var(--t-fast);
}
.link:hover {
  color: var(--ink);
}

/* --- command chip --------------------------------------------------------------------------- */
/* A slash command, set the way it looks while it is being typed. */

.cmd {
  display: inline-block;
  padding: 0.02em 0.3em 0.08em;
  border-radius: 0.25em;
  background: var(--accent-soft);
  box-shadow: inset 0 0 0 1px var(--accent-line);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.92em;
  font-weight: var(--medium);
  letter-spacing: -0.03em;
  white-space: nowrap;
}
/* The quiet form, for a command named in the middle of a paragraph. */
code {
  font-family: var(--mono);
  font-size: 0.9em;
  color: var(--ink);
}

/* --- badge ---------------------------------------------------------------------------------- */

.badge {
  --badge: var(--accent);
  display: inline-flex;
  align-items: center;
  min-height: 2rem;
  padding-inline: var(--s-3);
  border-radius: var(--r-full);
  background: color-mix(in srgb, var(--badge) 12%, transparent);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--badge) 40%, transparent);
  color: var(--badge);
  font-size: var(--step--1);
  font-weight: var(--medium);
}

/* --- card ----------------------------------------------------------------------------------- */
/* Only where something really is a separate object: a server, a bot, a playlist. */

.card {
  padding: var(--s-5);
  border-radius: var(--r-2);
  background: var(--surface);
  box-shadow: var(--ring);
}

/* --- footer --------------------------------------------------------------------------------- */

.footer {
  margin-top: var(--section);
  padding-block: var(--s-6) var(--s-7);
  border-top: 1px solid var(--line);
  color: var(--ink-3);
  font-size: var(--step--1);
}
.footer-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--s-2) var(--s-5);
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  margin-left: auto;
  margin-right: calc(var(--s-3) * -1);
}
.footer-links a {
  display: inline-flex;
  align-items: center;
  min-height: var(--target);
  padding-inline: var(--s-3);
  color: var(--ink-2);
  text-decoration: none;
  transition: color var(--t-fast);
}
.footer-links a:hover {
  color: var(--ink);
}
.footer-note {
  margin-top: var(--s-3);
  max-width: var(--measure);
  font-size: var(--step--2);
}
@media (max-width: 40rem) {
  .footer-links {
    margin-left: calc(var(--s-3) * -1);
  }
}

/* --- reduced motion ------------------------------------------------------------------------- */
/* Durations collapse instead of disappearing, so transitionend and animationend still fire. */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* --- forced colours (Windows high contrast) ------------------------------------------------- */
/* Shadows and backgrounds are dropped there, so every edge drawn with one needs a real outline. */

@media (forced-colors: active) {
  .btn,
  .cmd,
  .badge,
  .chip,
  .boost,
  .card,
  .callout,
  .stage,
  .queue,
  .screen,
  .server,
  .bot-card,
  .input,
  .overlay-link,
  .select,
  .picker-add,
  .swatch,
  .backdrop,
  .switch::before,
  .save-bar,
  .toast,
  .passport-list,
  .passport-playlist-open,
  .passport-back,
  .pl,
  .cmd-jump a {
    outline: 1px solid CanvasText;
    outline-offset: -1px;
  }
  .swatch[aria-pressed="true"],
  .backdrop[aria-pressed="true"] {
    outline: 3px solid Highlight;
  }
  .switch.is-on::before,
  .boost-on {
    background: Highlight;
    color: HighlightText;
  }
  .level-fill,
  .screen-bar,
  .seek span {
    background: Highlight;
  }
}