@font-face {
  font-family: 'DESCENT SIGIL';
  src: url('../assets/descent-sigil.woff2') format('woff2');
  font-display: block;
}

:root {
  color-scheme: dark;
  --bg-base: #0a0612;
  --bg-panel: #13092a;
  --bg-panel-elevated: #1a0e36;
  --border-dim: #453370;
  --border-active: var(--accent);
  --text-primary: #e0d8f0;
  --text-secondary: #a89ac6;
  --text-dim: #8878a8;
  --text-disabled: #71659a;                        /* ≈4.5:1 on --bg-panel — disabled ≠ invisible */
  --accent: #7ec8e3;
  --danger: #e83a3a;
  --warning: #e8632a;
  --heal: #3ae8a8;
  --hp: #e8b23a;                                   /* player vitality — NOT enemy-red (Custom Rule 14) */
  --sigil-player: var(--accent);
  --sigil-enemy: #e83a3a;
  --sigil-echo: #e83a3a;

  /* Scroll body — visual-parity-v4 */
  --screen-body-fade: 32px;                        /* edge-fade mask height */
  --scrollbar-track: transparent;
  --scrollbar-thumb: color-mix(in oklab, var(--accent) 40%, transparent);
  --scrollbar-thumb-hover: color-mix(in oklab, var(--accent) 70%, transparent);
  --scrollbar-width: 6px;

  /* Safe-area insets (mobile-pwa-hardening SESSION-01) — frame-level only.
     #crt-overlays stays edge-to-edge; #app-root pads its content box with
     these so installed/notched viewports never render under a cutout. */
  --safe-area-top: env(safe-area-inset-top, 0px);
  --safe-area-right: env(safe-area-inset-right, 0px);
  --safe-area-bottom: env(safe-area-inset-bottom, 0px);
  --safe-area-left: env(safe-area-inset-left, 0px);
}

button,
input,
textarea,
select {
  color: var(--text-primary);
  font: inherit;
}

* {
  box-sizing: border-box;
}

body {
  background: var(--bg-base);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  margin: 0;
  font-family: ui-monospace, 'SF Mono', 'Cascadia Code', 'Roboto Mono', Consolas, monospace;
  color: var(--text-primary);
  font-size: 14px;
  overflow: hidden;
}

/* Portrait frame (SESSION-06) — fluid full-viewport container in every viewport
   under the wide media query. No 9:16 letterbox: the frame fills the whole
   available viewport width and dynamic viewport height so phones (412×915) and
   tall portrait desktops (1080×1920) alike get their full screen back. The
   wide-mode override in styles/wide.css keeps its own `#portrait-frame:has(
   [data-wide-root])` gate so the wide shell stays full-bleed too. */
#portrait-frame,
.portrait-frame {
  width: 100vw;
  height: 100vh;
  max-width: 100vw;
  max-height: 100vh;
  margin: 0;
  position: relative;
  overflow: hidden;
  background: var(--bg-base);
}

@supports (height: 100dvh) {
  #portrait-frame,
  .portrait-frame {
    height: 100dvh;
    max-height: 100dvh;
  }
}

#crt-overlays {
  position: fixed;
  inset: 0;
  z-index: 100;
  pointer-events: none;
}

#app-root {
  position: relative;
  z-index: 10;
  width: 100%;
  height: 100%;
  padding: var(--safe-area-top) var(--safe-area-right) var(--safe-area-bottom) var(--safe-area-left);
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--accent) var(--bg-panel);
}
#app-root::-webkit-scrollbar { width: 4px; }
#app-root::-webkit-scrollbar-thumb { background: var(--accent); }
#app-root::-webkit-scrollbar-track { background: var(--bg-panel); }

.screen-container {
  display: flex;
  flex-direction: column;
  height: 100%;
}

/* Typography */
.display { font-size: 48px; font-weight: 700; letter-spacing: 0.15em; }
.heading { font-size: 24px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; }
.subheading { font-size: 18px; font-weight: 600; text-transform: uppercase; }
.body-text { font-size: 14px; font-weight: 400; }
.caption { font-size: 12px; font-weight: 400; color: var(--text-secondary); }
.micro { font-size: 10px; font-weight: 400; color: var(--text-dim); }

/* Spacing utility classes */
.s-1 { padding: 4px; }
.s-2 { padding: 8px; }
.s-3 { padding: 12px; }
.s-4 { padding: 16px; }
.s-6 { padding: 24px; }
.s-8 { padding: 32px; }
.gap-1 { gap: 4px; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }

/* Glow system */
.glow { text-shadow: 0 0 8px var(--accent); }
.glow-strong { text-shadow: 0 0 16px var(--accent), 0 0 24px var(--accent); }
.glow-danger { text-shadow: 0 0 8px var(--danger); }
.accent-text { color: var(--accent); }
.glow-border { box-shadow: 0 0 8px var(--accent); }
.glow-border-strong { box-shadow: 0 0 16px var(--accent), 0 0 24px var(--accent); }

/* Ornament — ◈ decorative element (CSS-drawn, never a sigil bank glyph) */
.ornament::before {
  content: '◈';
  color: var(--accent);
  text-shadow: 0 0 8px var(--accent);
}
.ornament::after {
  content: '◈';
  color: var(--accent);
  text-shadow: 0 0 8px var(--accent);
}
.ornament::before { margin-right: 0.5em; }
.ornament::after { margin-left: 0.5em; }

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

/* Title glitch — chromatic ghost */
.title-glitch {
  position: relative;
  display: inline-block;
}
.title-glitch::before,
.title-glitch::after {
  content: attr(data-text);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  opacity: 0.47;
  animation: chroma-ghost 3s steps(1) infinite;
  pointer-events: none;
}
.title-glitch::before { color: #ff0000; transform: translate(-2px, 0); }
.title-glitch::after { color: #0000ff; transform: translate(2px, 0); }
@keyframes chroma-ghost {
  0%, 70%  { opacity: 0; }
  71%      { opacity: 0.47; }
  85%      { opacity: 0.47; }
  86%      { opacity: 0; }
  100%     { opacity: 0; }
}

/* START button — pulsing accent border */
.btn-crt.btn-start {
  background: transparent;
  border: 2px solid var(--accent);
  color: var(--accent);
  padding: 20px 48px;
  font-size: 24px;
  letter-spacing: 0.3em;
  box-shadow: 0 0 16px var(--accent), inset 0 0 16px rgba(126, 200, 227, 0.1);
  animation: start-pulse 2s ease-in-out infinite;
}
.btn-crt.btn-start:hover {
  background: rgba(126, 200, 227, 0.1);
  box-shadow: 0 0 32px var(--accent);
}
@keyframes start-pulse {
  0%, 100% { box-shadow: 0 0 16px var(--accent), inset 0 0 16px rgba(126, 200, 227, 0.1); }
  50%      { box-shadow: 0 0 24px var(--accent), inset 0 0 24px rgba(126, 200, 227, 0.15); }
}

/* Panel */
.panel {
  background: var(--bg-panel);
  border: 1px solid var(--border-dim);
}

.panel-elevated {
  background: var(--bg-panel-elevated);
  border: 1px solid var(--accent);
}

/* Buttons */
.btn-crt {
  background: var(--bg-panel-elevated);
  border: 1px solid var(--border-dim);
  color: var(--text-primary);
  padding: 14px 24px;
  font-family: inherit;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: all 0.15s ease;
  text-align: center;
  border-radius: 4px;
}

.btn-crt:hover,
.btn-crt:focus {
  border-color: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  color: var(--accent);
  outline: none;
}

.btn-crt:active {
  background: var(--bg-panel-elevated);
}

.btn-primary {
  background: rgba(126,200,227,0.1);
  border: 2px solid var(--accent);
  color: var(--accent);
  box-shadow: 0 0 12px var(--accent);
  padding: 20px 48px;
  font-size: 24px;
  letter-spacing: 0.3em;
}

.btn-primary:hover {
  background: rgba(126,200,227,0.2);
  box-shadow: 0 0 20px var(--accent);
}

.btn-link {
  text-decoration: none;
  display: inline-block;
}

/* Sigil sizes */
.sigil-mini {
  width: 22px;
  height: 22px;
  border: 1px solid var(--accent);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 9px;
  font-weight: bold;
  text-shadow: 0 0 4px var(--accent);
}

.creature-sigil {
  font-family: 'DESCENT SIGIL';
  line-height: 1;
  display: inline-grid;
  place-items: center;
  text-shadow: 0 0 12px currentColor, 0 0 24px currentColor;
}

.sigil-role-player { color: var(--sigil-player); }
.sigil-role-enemy { color: var(--sigil-enemy); }
.sigil-role-echo { color: var(--sigil-echo); }
.sigil-34 { font-size: 34px; width: 34px; height: 34px; }
.sigil-72 { font-size: 72px; width: 72px; height: 72px; }
.sigil-108 { font-size: 108px; width: 108px; height: 108px; }
.sigil-220 { font-size: 220px; width: 220px; height: 220px; }

/* Bar */
.bar-track {
  background: var(--bg-base);
  height: 4px;
  border: 1px solid var(--border-dim);
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  background: var(--accent);
  box-shadow: 0 0 4px var(--accent);
  transition: width 0.3s ease;
}

.bar-fill-hp { background: var(--hp); box-shadow: 0 0 4px var(--hp); }
.bar-fill-warning { background: var(--warning); box-shadow: 0 0 4px var(--warning); }
.bar-fill-heal { background: var(--heal); box-shadow: 0 0 4px var(--heal); }

/* Scroll area */
.scroll-area {
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--accent) var(--bg-panel);
}

.scroll-area::-webkit-scrollbar { width: 4px; }
.scroll-area::-webkit-scrollbar-thumb { background: var(--accent); }
.scroll-area::-webkit-scrollbar-track { background: var(--bg-panel); }

/* Corner radius utilities */
.radius-btn { border-radius: 4px; }
.radius-control { border-radius: 2px; }
:focus-visible,
.mode-tab:focus {
  outline: 4px solid var(--accent);
  outline-offset: 4px;
  box-shadow: 0 0 0 2px var(--bg-base), 0 0 16px var(--accent);
}

button:disabled,
input:disabled,
textarea:disabled,
[aria-disabled="true"] {
  opacity: 0.45;
  cursor: not-allowed;
}

[aria-invalid="true"],
.error {
  border-color: var(--danger);
  box-shadow: 0 0 8px var(--danger);
}

[aria-busy="true"] {
  cursor: progress;
}

[aria-live] {
  overflow-wrap: anywhere;
}

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

html {
  width: 100%;
  min-height: 100%;
  background: #000;
}

@supports (height: 100dvh) {
  body { min-height: 100dvh; }
}

#portrait-frame,
.portrait-frame {
  transform-origin: center center;
}