/*
 * style.css — page shell: reset, full-viewport canvas, theme variables, loading and
 * fatal screens, and the minimal boot overlay main.js uses until ui.js takes over.
 * HUD and menu styling lives in css/ui.css (loaded by ui.js).
 */

:root {
  --font-ui: "Segoe UI", "Inter", "Helvetica Neue", Arial, system-ui, sans-serif;
  --font-mono: "Cascadia Mono", "JetBrains Mono", "SFMono-Regular", Consolas, monospace;

  --c-bg: #07090b;
  --c-panel: rgba(12, 15, 18, 0.82);
  --c-panel-solid: #101418;
  --c-line: rgba(255, 255, 255, 0.12);
  --c-text: #e9ecef;
  --c-text-dim: #9aa4ad;
  --c-accent: #f2a541;
  --c-accent-strong: #ffb84d;
  --c-danger: #e5484d;
  --c-ok: #5fd068;

  --radius: 4px;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
  --ease-out: cubic-bezier(0.2, 0.8, 0.2, 1);
}

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

html,
body {
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-ui);
  -webkit-font-smoothing: antialiased;
  user-select: none;
  -webkit-user-select: none;
  overscroll-behavior: none;
}

[hidden] {
  display: none !important;
}

#game-root {
  position: fixed;
  inset: 0;
  overflow: hidden;
}

#game-root canvas {
  display: block;
  width: 100%;
  height: 100%;
  outline: none;
  touch-action: none;
}

body[data-state="playing"] #game-root canvas {
  cursor: none;
}

#ui-root {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 10;
}

#ui-root > * {
  pointer-events: auto;
}

/* ─── Full-screen panels ─────────────────────────────────────────────────── */

.screen {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 24px;
}

.screen--loading {
  background:
    radial-gradient(ellipse at 50% 120%, rgba(242, 165, 65, 0.18), transparent 60%),
    linear-gradient(180deg, #0b0e11 0%, #050607 100%);
  transition: opacity 0.5s var(--ease-out);
}

.screen--loading.is-done {
  opacity: 0;
  pointer-events: none;
}

.loading__inner {
  width: min(520px, 100%);
  text-align: center;
}

.loading__kicker {
  margin: 0 0 8px;
  color: var(--c-accent);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.32em;
  text-transform: uppercase;
}

.loading__title {
  margin: 0 0 28px;
  font-size: clamp(32px, 6vw, 56px);
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.loading__bar {
  position: relative;
  height: 3px;
  overflow: hidden;
  background: var(--c-line);
}

.loading__bar span {
  position: absolute;
  inset: 0 auto 0 0;
  width: 35%;
  background: var(--c-accent);
  animation: loading-sweep 1.2s ease-in-out infinite;
}

@keyframes loading-sweep {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(300%); }
}

.loading__text {
  margin: 14px 0 0;
  color: var(--c-text-dim);
  font-size: 14px;
}

.screen--fatal {
  z-index: 200;
  background: rgba(5, 6, 8, 0.94);
}

.fatal__inner {
  width: min(560px, 100%);
  padding: 32px;
  border: 1px solid rgba(229, 72, 77, 0.45);
  border-radius: var(--radius);
  background: var(--c-panel-solid);
  box-shadow: var(--shadow);
}

.fatal__inner h1 {
  margin: 0 0 12px;
  color: var(--c-danger);
  font-size: 22px;
}

.fatal__inner p {
  margin: 0 0 24px;
  color: var(--c-text-dim);
  line-height: 1.5;
  word-break: break-word;
  user-select: text;
  -webkit-user-select: text;
}

/* ─── Buttons ────────────────────────────────────────────────────────────── */

.btn {
  appearance: none;
  min-width: 160px;
  padding: 12px 22px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.06);
  color: var(--c-text);
  font: 600 14px/1 var(--font-ui);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.btn:hover,
.btn:focus-visible {
  border-color: var(--c-accent);
  background: rgba(242, 165, 65, 0.14);
  outline: none;
}

.btn--primary {
  border-color: var(--c-accent);
  background: var(--c-accent);
  color: #111;
}

.btn--primary:hover,
.btn--primary:focus-visible {
  background: var(--c-accent-strong);
  color: #111;
}

/* ─── Boot overlay (temporary UI used by main.js until ui.js is present) ── */

.boot-overlay {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background: linear-gradient(180deg, rgba(5, 7, 9, 0.35), rgba(5, 7, 9, 0.75));
}

.boot-overlay__panel {
  display: grid;
  gap: 14px;
  justify-items: center;
  padding: 36px 44px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: var(--c-panel);
  box-shadow: var(--shadow);
  text-align: center;
  backdrop-filter: blur(6px);
}

.boot-overlay__panel h2 {
  margin: 0 0 6px;
  font-size: 28px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.boot-overlay__panel p {
  margin: 0;
  color: var(--c-text-dim);
  font-size: 14px;
}

.boot-toast {
  position: fixed;
  left: 50%;
  bottom: 12%;
  transform: translateX(-50%);
  padding: 10px 18px;
  border-left: 3px solid var(--c-accent);
  background: var(--c-panel);
  color: var(--c-text);
  font-size: 14px;
  pointer-events: none;
}