/*
 * WebWolf styles.
 *
 * Constraints that drive every choice here:
 *
 * - Phones lie flat on a table, often at arm's length. Type is large, tap
 *   targets are at least 44px, and nothing important sits in a corner.
 * - One screen, no scrolling. Layouts are flex columns that shrink; the app
 *   shell keeps `overflow-y: auto` as a safety net for very short screens
 *   rather than clipping content outright.
 * - The night must be dark. `body[data-phase]` re-themes the whole page so a
 *   table full of face-up phones does not glow during the night phase.
 */

:root {
  --bg: #10131a;
  --bg-elevated: #1a1f2b;
  --bg-tile: #222839;
  --border: #2e3548;
  --text: #e8ebf2;
  --text-muted: #8d97ab;
  --accent: #7c6cf0;
  --accent-contrast: #ffffff;
  --danger: #e05260;
  --success: #3fb27f;
  --warning: #e0a84e;

  --radius: 14px;
  --radius-sm: 10px;
  --gap: 12px;
  --pad: 16px;

  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);

  color-scheme: dark;
}

/* Phase theming ----------------------------------------------------------- */

body[data-phase="night"] {
  --bg: #05070d;
  --bg-elevated: #0c1018;
  --bg-tile: #131828;
  --accent: #5b6bd6;
}

body[data-phase="role_reveal"] {
  --accent: #d4a017;
}

body[data-phase="day"] {
  --bg: #141824;
  --accent: #e0a84e;
}

body[data-phase="vote"] {
  --accent: #e05260;
}

body[data-phase="reveal"] {
  --accent: #3fb27f;
}

/* Reset ------------------------------------------------------------------- */

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

html,
body {
  height: 100%;
  margin: 0;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", sans-serif;
  font-size: 16px;
  line-height: 1.4;
  -webkit-font-smoothing: antialiased;
  /* Tapping tiles quickly must never trigger zoom or text selection. */
  -webkit-user-select: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  transition: background-color 400ms ease;
}

h1,
h2,
p,
ul {
  margin: 0;
}

ul {
  padding: 0;
  list-style: none;
}

button {
  font: inherit;
  color: inherit;
  cursor: pointer;
}

/* Shell ------------------------------------------------------------------- */

/*
 * A fixed height, not a minimum: this element has to *be* the scroll container
 * so that the lobby's sticky action bar has something to stick to. With
 * `min-height` it would simply grow and the body would scroll instead.
 */
.app {
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
  max-width: 560px;
  margin: 0 auto;
  padding: calc(var(--pad) + var(--safe-top)) var(--pad)
    calc(var(--pad) + var(--safe-bottom));
  gap: var(--gap);
  overflow-y: auto;
  overscroll-behavior: contain;
}

.screen {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: var(--gap);
  min-height: 0;
}

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

.header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--gap);
}

.header__title {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.header__subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.header__aside {
  flex-shrink: 0;
  text-align: right;
}

.countdown {
  display: inline-block;
  min-width: 3ch;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  background: var(--bg-elevated);
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  font-size: 1.25rem;
  font-weight: 700;
}

/* Home -------------------------------------------------------------------- */

.screen--home {
  justify-content: center;
  text-align: center;
}

.home__brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  margin-bottom: 8px;
}

.home__logo {
  font-size: 3.5rem;
  line-height: 1;
}

.home__title {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.home__tagline {
  color: var(--text-muted);
  font-size: 0.95rem;
  max-width: 28ch;
}

.home__form {
  display: flex;
  flex-direction: column;
  gap: var(--gap);
  text-align: left;
}

.home__divider {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.home__divider::before,
.home__divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border);
}

.home__join {
  display: flex;
  align-items: flex-end;
  gap: var(--gap);
}

/* Fields ------------------------------------------------------------------ */

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field--grow {
  flex: 1;
}

.field__label {
  color: var(--text-muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.field__input {
  width: 100%;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-elevated);
  color: var(--text);
  /* 16px minimum stops iOS Safari from zooming when the field gains focus. */
  font-size: 16px;
  -webkit-user-select: text;
  user-select: text;
}

.field__input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.field__input--code {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  text-align: center;
  text-transform: uppercase;
}

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

.btn {
  min-height: 48px;
  padding: 12px 20px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: var(--bg-elevated);
  font-weight: 600;
  transition:
    transform 80ms ease,
    opacity 120ms ease;
}

.btn:active:not(:disabled) {
  transform: scale(0.98);
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.btn--primary {
  background: var(--accent);
  color: var(--accent-contrast);
  font-size: 1.05rem;
}

.btn--ghost {
  border-color: var(--border);
  background: transparent;
  color: var(--text-muted);
}

.btn--block {
  width: 100%;
}

.btn--chip {
  min-height: 40px;
  min-width: 40px;
  padding: 0;
  border-color: var(--border);
  background: var(--bg-tile);
  font-size: 1.2rem;
  line-height: 1;
}

.actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: auto;
}

/*
 * The lobby is the one screen that can outgrow a phone: deck plus settings
 * plus a player list. Its action bar sticks to the bottom so "Lancer la
 * partie" is always one tap away, however far down the host has scrolled.
 */
.screen--lobby .actions {
  position: sticky;
  /* Pulled down over the shell's own bottom padding, so no scrolled content
     peeks out beneath the bar. */
  bottom: calc(-1 * (var(--pad) + var(--safe-bottom)));
  padding: 12px 0 calc(8px + var(--pad) + var(--safe-bottom));
  /* Opaque, or the panels underneath show through the ghost button. The
     shadow does the fading instead of a gradient background. */
  background: var(--bg);
  box-shadow: 0 -14px 18px -6px var(--bg);
}

/* Panels ------------------------------------------------------------------ */

.screen--lobby .panel {
  padding: 12px;
  gap: 8px;
}

.screen--lobby .player {
  padding: 6px 10px;
}

.screen--lobby .deck__row {
  padding: 4px 8px;
}

.screen--lobby .stepper {
  min-height: 40px;
}

.panel {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: var(--pad);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elevated);
}

.panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--gap);
}

.panel__title {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.panel__hint {
  color: var(--text-muted);
  font-size: 0.82rem;
}

.panel__section {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 10px;
  border-top: 1px solid var(--border);
}

.muted {
  color: var(--text-muted);
  font-size: 0.9rem;
  text-align: center;
}

.warning {
  color: var(--warning);
  font-size: 0.9rem;
  text-align: center;
}

/* Banners ----------------------------------------------------------------- */

.banner {
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  background: var(--bg-elevated);
  font-size: 0.92rem;
  text-align: center;
}

.banner--warn {
  background: rgba(224, 168, 78, 0.16);
  color: var(--warning);
}

.banner--error {
  background: rgba(224, 82, 96, 0.16);
  color: var(--danger);
}

/* Room code --------------------------------------------------------------- */

.room-code {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}

.room-code__hint {
  color: var(--text-muted);
  font-size: 0.7rem;
}

.room-code__value {
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  color: var(--accent);
}

/* Player list ------------------------------------------------------------- */

.player-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.player {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  background: var(--bg-tile);
}

.player--offline {
  opacity: 0.5;
}

.player__name {
  flex: 1;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.player__remove {
  min-width: 32px;
  min-height: 32px;
  border: none;
  border-radius: 50%;
  background: transparent;
  color: var(--text-muted);
}

.chip {
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-muted);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.chip--host {
  background: rgba(124, 108, 240, 0.2);
  color: var(--accent);
}

.chip--dead {
  background: rgba(224, 82, 96, 0.2);
  color: var(--danger);
}

.chip--muted {
  opacity: 0.7;
}

.chip--device {
  background: rgba(63, 178, 127, 0.18);
  color: var(--success);
}

.pill {
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
}

.pill--ok {
  background: rgba(63, 178, 127, 0.18);
  color: var(--success);
}

.pill--warn {
  background: rgba(224, 168, 78, 0.18);
  color: var(--warning);
}

/* Deck builder ------------------------------------------------------------ */

.deck {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.deck__row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  background: var(--bg-tile);
  opacity: 0.55;
}

.deck__row--active {
  opacity: 1;
}

.deck__glyph {
  font-size: 1.3rem;
}

.deck__name {
  flex: 1;
  font-weight: 600;
}

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

.deck__count {
  min-width: 2ch;
  text-align: center;
  font-variant-numeric: tabular-nums;
  font-weight: 700;
}

/* Steppers and toggles ---------------------------------------------------- */

.stepper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--gap);
}

.stepper__label {
  color: var(--text-muted);
  font-size: 0.9rem;
}

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

.stepper__value {
  min-width: 5ch;
  text-align: center;
  font-variant-numeric: tabular-nums;
  font-weight: 700;
}

.toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--gap);
  padding: 8px 0;
  border: none;
  background: none;
  width: 100%;
}

.toggle__label {
  font-weight: 600;
}

.toggle__track {
  position: relative;
  width: 46px;
  height: 28px;
  border-radius: 999px;
  background: var(--bg-tile);
  transition: background-color 150ms ease;
  flex-shrink: 0;
}

.toggle--on .toggle__track {
  background: var(--accent);
}

.toggle__knob {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #fff;
  transition: transform 150ms ease;
}

.toggle--on .toggle__knob {
  transform: translateX(18px);
}

/* Stage ------------------------------------------------------------------- */

/*
 * Grows into whatever space the header and the action bar leave, and centres
 * its contents. Without it a three-player round sits in the top fifth of a
 * modern phone and every tap is a stretch.
 */
.stage {
  display: flex;
  flex: 1;
  flex-direction: column;
  justify-content: center;
  gap: var(--gap);
  min-height: 0;
}

/* Tile grid --------------------------------------------------------------- */

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(92px, 1fr));
  gap: 10px;
}

.tile {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  padding: 10px 6px;
  min-height: 96px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-tile);
  text-align: center;
  transition:
    transform 80ms ease,
    border-color 120ms ease,
    background-color 120ms ease;
}

.tile:active {
  transform: scale(0.97);
}

.tile__glyph {
  font-size: 1.6rem;
  line-height: 1.1;
}

.tile__label {
  font-weight: 700;
  font-size: 0.92rem;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tile__role {
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 700;
}

.tile__note {
  color: var(--text-muted);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.tile--selectable {
  border-color: var(--accent);
}

.tile--selected {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 28%, var(--bg-tile));
}

.tile--revealed {
  border-color: var(--success);
  background: color-mix(in srgb, var(--success) 14%, var(--bg-tile));
}

/*
 * A face-up card is a *result*, so it keeps its own colour rather than the
 * phase accent - which on the werewolf-win screen is red and clashed with the
 * green border.
 */
.tile--revealed .tile__role {
  color: var(--success);
}

.tile--muted {
  opacity: 0.42;
}

.tile--eliminated {
  border-color: var(--danger);
}

.tile--eliminated .tile__label {
  text-decoration: line-through;
}

/* Role reveal ------------------------------------------------------------- */

.card-hero {
  display: flex;
  flex: 1;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: var(--pad);
  border: 2px solid var(--accent);
  border-radius: 20px;
  background: linear-gradient(160deg, var(--bg-elevated), var(--bg-tile));
  text-align: center;
}

.card-hero__glyph {
  font-size: 4.5rem;
  line-height: 1;
}

.card-hero__name {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.card-hero__tagline {
  color: var(--text-muted);
  max-width: 26ch;
}

.card-hero--empty {
  border-style: dashed;
  border-color: var(--border);
  font-size: 4rem;
  color: var(--text-muted);
}

/* Night ------------------------------------------------------------------- */

.screen--asleep {
  justify-content: center;
}

.asleep {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex: 1;
  text-align: center;
  /* Dim rather than hidden: the phone is face up and must not light the room. */
  opacity: 0.75;
}

.asleep__glyph {
  font-size: 3.5rem;
  line-height: 1;
}

.asleep__title {
  font-size: 1.6rem;
  font-weight: 700;
}

.asleep__instruction {
  color: var(--text-muted);
  font-size: 1.05rem;
}

.asleep__step {
  color: var(--accent);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Hand-over gate ---------------------------------------------------------- */

/*
 * The screen that stands between a phone and somebody's secret. It fills the
 * viewport on purpose: nothing of the phase behind it should be legible, and
 * the buttons must be reachable one-handed while the phone changes hands.
 */
.screen--gate {
  justify-content: center;
}

.handover {
  display: flex;
  flex: 1;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  text-align: center;
}

.handover__glyph {
  font-size: 3.5rem;
  line-height: 1;
}

.handover__title {
  font-size: 1.7rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.handover__instruction {
  max-width: 28ch;
  font-size: 1.05rem;
}

.handover__caution {
  max-width: 30ch;
  color: var(--warning);
  font-size: 0.9rem;
}

.handover__aside,
.handover__step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.handover__seats {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
  max-width: 22rem;
  margin-top: 4px;
}

.handover__seat {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 14px;
}

.handover__seat-label {
  font-weight: 700;
}

.handover__seat-note {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  opacity: 0.75;
}

/* Per-seat progress on a shared phone, e.g. who has looked at their card. */
.seat-progress {
  display: flex;
  flex-direction: column;
  gap: 4px;
  color: var(--text-muted);
  font-size: 0.82rem;
}

.seat-progress__row--done {
  color: var(--success);
}

/* Result ------------------------------------------------------------------ */

.screen--result-werewolf {
  --accent: var(--danger);
}

.screen--result-nobody {
  --accent: var(--text-muted);
}

.result-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.result-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  background: var(--bg-tile);
  font-size: 0.9rem;
}

.result-row--dead {
  background: rgba(224, 82, 96, 0.14);
}

.result-row__name {
  flex: 1;
  font-weight: 700;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.result-row__roles {
  display: flex;
  align-items: center;
  gap: 4px;
}

.result-row__arrow {
  color: var(--text-muted);
}

.result-row__votes {
  color: var(--text-muted);
  font-size: 0.78rem;
  white-space: nowrap;
}

.role-chip {
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.07);
  font-size: 0.78rem;
  font-weight: 600;
  white-space: nowrap;
}

.role-chip--final {
  background: color-mix(in srgb, var(--accent) 26%, transparent);
  color: var(--text);
}

/* Motion ------------------------------------------------------------------ */

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