/* ==========================================================================
   openbottle.no — design system (open-base)
   Ultra-minimal: light neutral background, white borderless surfaces, pills,
   near-monochrome. Geist for content, Geist Mono for numbers and micro labels.
   The accent color is reserved for alarm/critical states only.
   ========================================================================== */

@font-face {
  font-family: "Geist";
  src: url("fonts/Geist-var.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: optional;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
    U+02DC, U+2000-206F, U+20AC, U+2122, U+2212, U+FEFF, U+FFFD;
}

@font-face {
  font-family: "Geist";
  src: url("fonts/Geist-var-ext.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: optional;
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF,
    U+1E00-1EFF, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

@font-face {
  font-family: "Geist Mono";
  src: url("fonts/GeistMono-var.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: optional;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
    U+02DC, U+2000-206F, U+20AC, U+2122, U+2212, U+FEFF, U+FFFD;
}

@font-face {
  font-family: "Geist Mono";
  src: url("fonts/GeistMono-var-ext.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: optional;
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF,
    U+1E00-1EFF, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

:root {
  --bg: #f4f4f2;
  --surface: #ffffff;
  --surface-2: #f4f4f2;
  --surface-3: #e9e9e6;
  --text: #171717;
  --text-2: #666666;
  --text-3: #6f6f6f;
  --border: rgba(0, 0, 0, 0.05);
  --border-strong: rgba(0, 0, 0, 0.1);

  --accent: #d92d20;
  --accent-soft: rgba(217, 45, 32, 0.08);

  --ok: #157f3d;

  --inverse-bg: #171717;
  --inverse-text: #fafafa;

  --ring: rgba(0, 0, 0, 0.1);
  --shadow-overlay: 0 4px 12px rgba(0, 0, 0, 0.04), 0 24px 60px rgba(0, 0, 0, 0.1);

  --font-sans: "Geist", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --chevron: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236f6f6f' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");

  color-scheme: light;
}

:root[data-theme="dark"] {
  --bg: #0e0e0e;
  --surface: #191919;
  --surface-2: #0e0e0e;
  --surface-3: #262626;
  --text: #ededed;
  --text-2: #a3a3a3;
  --text-3: #9a9a9a;
  --border: rgba(255, 255, 255, 0.07);
  --border-strong: rgba(255, 255, 255, 0.14);

  --accent: #f4645a;
  --accent-soft: rgba(244, 100, 90, 0.12);

  --ok: #6ccb8b;

  --inverse-bg: #fafafa;
  --inverse-text: #171717;

  --ring: rgba(255, 255, 255, 0.16);
  --shadow-overlay: 0 4px 12px rgba(0, 0, 0, 0.4), 0 24px 60px rgba(0, 0, 0, 0.55);

  --chevron: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%239a9a9a' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");

  color-scheme: dark;
}

/* System dark mode applies unless the user explicitly chose light */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0e0e0e;
    --surface: #191919;
    --surface-2: #0e0e0e;
    --surface-3: #262626;
    --text: #ededed;
    --text-2: #a3a3a3;
    --text-3: #9a9a9a;
    --border: rgba(255, 255, 255, 0.07);
    --border-strong: rgba(255, 255, 255, 0.14);

    --accent: #f4645a;
    --accent-soft: rgba(244, 100, 90, 0.12);

    --ok: #6ccb8b;

    --inverse-bg: #fafafa;
    --inverse-text: #171717;

    --ring: rgba(255, 255, 255, 0.16);
    --shadow-overlay: 0 4px 12px rgba(0, 0, 0, 0.4), 0 24px 60px rgba(0, 0, 0, 0.55);

    --chevron: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%239a9a9a' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");

    color-scheme: dark;
  }
}

/* --------------------------------------------------------------------------
   Base
   -------------------------------------------------------------------------- */

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

[hidden] { display: none !important; }

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

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  color: var(--text);
  background-color: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  transition: background-color 0.25s ease, color 0.25s ease;
}

/* Numbers and data: mono with tabular digits so nothing jumps */
.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.icon {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

a { color: inherit; }

:focus-visible {
  outline: 2px solid var(--text);
  outline-offset: 2px;
  border-radius: 6px;
}

::selection { background: var(--surface-3); }

/* UI chrome must not be text-selectable (iOS long-press etc.).
   Real content/data the user may want to copy stays selectable. */
button, .site-header, .site-footer, .menu, .toast {
  -webkit-user-select: none;
  user-select: none;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */

.site-header { background: transparent; }

.header-inner {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 20px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.01em;
  text-decoration: none;
}

.brand-tld { color: var(--text-3); font-weight: 500; }

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */

.icon-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  background: var(--surface);
  transition: background-color 0.15s ease, color 0.15s ease, transform 0.15s ease;
}

.icon-btn:hover { background: var(--surface-3); }
.icon-btn:active { transform: scale(0.94); }

.icon-btn.open { background: var(--inverse-bg); color: var(--inverse-text); }

/* Toggle buttons (on/off states) invert when active */
.toggle-btn.on { background: var(--inverse-bg); color: var(--inverse-text); }
.toggle-btn.on:hover { opacity: 0.85; background: var(--inverse-bg); }

.pill-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 22px;
  border-radius: 999px;
  font-size: 14.5px;
  font-weight: 600;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease,
              transform 0.15s ease, opacity 0.15s ease;
}

.pill-btn:active { transform: scale(0.97); }

.pill-btn.primary { background: var(--inverse-bg); color: var(--inverse-text); }
.pill-btn.primary:hover { opacity: 0.85; }

.pill-btn.ghost {
  border: 1px solid var(--border-strong);
  color: var(--text);
  background: var(--surface);
}

.pill-btn.ghost:hover { background: var(--surface-2); }
.pill-btn[disabled] { opacity: 0.4; pointer-events: none; }

/* --------------------------------------------------------------------------
   Settings menu
   -------------------------------------------------------------------------- */

.settings-wrap { position: relative; }

.menu {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  width: 296px;
  max-height: min(560px, calc(100dvh - 90px));
  overflow-y: auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: var(--shadow-overlay);
  padding: 20px;
  z-index: 60;
  transform-origin: top right;
  animation: menu-in 0.16s cubic-bezier(0.2, 0.9, 0.3, 1);
}

@keyframes menu-in {
  from { opacity: 0; transform: scale(0.96) translateY(-4px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.menu-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-3);
  margin-bottom: 10px;
}

/* Options share the row evenly when they fit; locales with long words
   («Pantalla completa», «Бегущая строка») wrap to their own row rather
   than wrapping inside the button. gap applies both ways, so the spacing
   between wrapped rows equals the spacing within a row */
.menu-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.menu-grid .opt-btn { flex: 1 1 auto; white-space: nowrap; }

.menu-select {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  font: inherit;
  font-size: 14px;
  color: var(--text);
  background-color: var(--surface-2);
  background-image: var(--chevron);
  background-repeat: no-repeat;
  background-position: right 16px center;
  background-size: 15px;
  border: none;
  border-radius: 12px;
  padding: 11px 44px 11px 14px;
  cursor: pointer;
}

.opt-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 8px;
  border: none;
  border-radius: 999px;
  background: var(--surface-2);
  font-size: 13.5px;
  font-weight: 500;
  text-align: center;
  color: var(--text-2);
  transition: background-color 0.13s ease, color 0.13s ease, transform 0.13s ease;
}

.opt-btn .icon { width: 14px; height: 14px; }

.opt-btn:hover { background: var(--surface-3); color: var(--text); }
.opt-btn:active { transform: scale(0.97); }

.opt-btn.active {
  background: var(--inverse-bg);
  color: var(--inverse-text);
  font-weight: 600;
}

.opt-btn.wide { width: 100%; }
.opt-btn.copied { background: var(--ok); color: #fff; }

.menu-divider {
  height: 1px;
  background: var(--border);
  margin: 18px -20px;
}

.menu-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  font-size: 14px;
  line-height: 1.35;
  cursor: pointer;
  user-select: none;
}

.switch {
  appearance: none;
  -webkit-appearance: none;
  flex-shrink: 0;
  width: 40px;
  height: 23px;
  border-radius: 999px;
  background: var(--surface-3);
  position: relative;
  cursor: pointer;
  transition: background-color 0.18s ease;
  margin: 0;
}

.switch::after {
  content: "";
  position: absolute;
  top: 2.5px;
  left: 2.5px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--surface);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
  transition: transform 0.18s ease;
}

.switch:checked { background: var(--inverse-bg); }
.switch:checked::after { transform: translateX(17px); background: var(--inverse-text); }

.menu-info {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 10.5px;
  line-height: 1.7;
  color: var(--text-3);
}

.menu-info a { color: var(--text-2); text-decoration: none; }
.menu-info a:hover { text-decoration: underline; }

.menu-year { margin-top: 6px; }

/* --------------------------------------------------------------------------
   THE TOOL — the circle of sectors, the bottle, the stepper and the button
   -------------------------------------------------------------------------- */

.container {
  width: 100%;
  max-width: 560px;
  margin: 0 auto;
  padding: 4px 20px 40px;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
}

/* The stage is square and as large as the viewport allows: full width on
   a phone, capped by the height on short landscape screens, 520px on
   desktop. Fixed geometry, so the first paint is the final layout. */
.stage {
  position: relative;
  width: min(100%, 520px, calc(100dvh - 340px));
  min-width: 240px;
  aspect-ratio: 1;
  touch-action: none; /* a flick must spin the bottle, not scroll the page */
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
  cursor: grab;
}

.stage:active { cursor: grabbing; }

.ring,
.bottle-wrap {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.ring .disc { fill: var(--surface); transition: fill 0.25s ease; }

/* Sectors: invisible until hit — then the whole wedge flashes green and
   settles on a faint tint that stays until the next spin */
.ring .wedge {
  fill: var(--ok);
  fill-opacity: 0;
  transition: fill-opacity 0.3s ease;
}

.ring .wedge.hit {
  fill-opacity: 0.14;
  animation: wedge-flash 1.1s ease;
}

@keyframes wedge-flash {
  from { fill-opacity: 0.42; }
  to { fill-opacity: 0.14; }
}

.ring .divider {
  stroke: var(--border-strong);
  stroke-width: 1;
}

/* The number badge: transparent, inverse-filled for the hit sector */
.ring .badge {
  fill: transparent;
  transition: fill 0.2s ease;
}

.ring .badge.hit { fill: var(--inverse-bg); }

.ring .label {
  font-family: var(--font-mono);
  font-size: 15px; /* viewBox units: ~12px on a phone */
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  fill: var(--text-2);
  text-anchor: middle;
  dominant-baseline: central;
  pointer-events: none;
  transition: fill 0.2s ease;
}

.ring .label.hit { fill: var(--inverse-text); font-weight: 600; }

/* The bottle: a flat silhouette in the text colour, rotated by app.js
   around the stage center (= the bottle's midpoint). The tip points at
   the sector. No filters here — the transform runs every frame. */
.bottle-wrap { will-change: transform; }

.bottle {
  display: block;
  width: 100%;
  height: 100%;
  color: var(--text);
}

.bottle .glass { fill: currentColor; }
.bottle .paper { fill: var(--surface); opacity: 0.18; }
.bottle .shine { fill: var(--surface); opacity: 0.3; }

/* Under the circle: the hint before the first spin, the result after */
.status {
  margin: 0;
  min-height: 20px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  text-align: center;
  color: var(--text-3);
  transition: color 0.2s ease;
}

.status.is-result { color: var(--ok); font-weight: 600; }

/* How many people: the one setup input */
.count-row {
  display: flex;
  align-items: center;
  gap: 14px;
}

.count {
  min-width: 128px;
  text-align: center;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-2);
}

.count .num {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
}

.icon-btn[disabled] { opacity: 0.35; pointer-events: none; }

.actions { display: flex; justify-content: center; }

.pill-btn.big { height: 52px; padding: 0 32px; font-size: 16px; }

/* The last rounds: one pill per result, newest first and inverted */
.history {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  margin-top: 6px;
  max-width: 100%;
}

.history-label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-3);
}

.history-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}

.history-list li {
  min-width: 34px;
  height: 34px;
  padding: 0 11px;
  border-radius: 999px;
  background: var(--surface);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-2);
}

.history-list li.latest {
  background: var(--inverse-bg);
  color: var(--inverse-text);
  font-weight: 600;
  animation: pill-in 0.35s cubic-bezier(0.2, 0.9, 0.3, 1.3);
}

@keyframes pill-in {
  from { transform: scale(0.6); }
  to { transform: scale(1); }
}

/* Busy while the bottle spins: dimmed but keeps focus (a real disabled
   attribute would drop keyboard focus mid-spin) */
.pill-btn[aria-disabled="true"] { opacity: 0.4; cursor: default; }
.pill-btn[aria-disabled="true"]:hover { opacity: 0.4; }
.pill-btn[aria-disabled="true"]:active { transform: none; }

/* --------------------------------------------------------------------------
   Toast
   -------------------------------------------------------------------------- */

.toast {
  position: fixed;
  inset: auto; /* resets popover UA styling (inset: 0) */
  margin: 0;
  border: 0;
  bottom: calc(24px + env(safe-area-inset-bottom));
  left: 50%;
  transform: translate(-50%, 16px);
  background: var(--inverse-bg);
  color: var(--inverse-text);
  font-size: 14px;
  font-weight: 500;
  padding: 12px 22px;
  border-radius: 999px;
  box-shadow: var(--shadow-overlay);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s ease, transform 0.22s ease;
  z-index: 100;
  max-width: calc(100vw - 40px);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.toast.show { opacity: 1; transform: translate(-50%, 0); pointer-events: auto; }

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */

.site-footer {
  text-align: center;
  padding: 24px 20px calc(24px + env(safe-area-inset-bottom));
  font-family: var(--font-mono);
  font-size: 10.5px;
  line-height: 1.9;
  letter-spacing: 0.02em;
  color: var(--text-3);
}

.site-footer p { margin: 0; }
.site-footer a { color: var(--text-2); text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }

/* --------------------------------------------------------------------------
   Mobile
   -------------------------------------------------------------------------- */

@media (max-width: 600px) {
  .menu { width: min(296px, calc(100vw - 32px)); }
}