/* Fall Line — interface styling.
   Cold, high-contrast, mostly out of the way. The game is the picture; the
   interface is a pane of frosted glass laid over the top of it. */

:root {
  --ink:        #eef3fa;
  --ink-dim:    #a4b2c4;
  --ink-faint:  #6c7c92;
  --glass:      rgba(16, 21, 30, 0.62);
  --glass-hi:   rgba(30, 39, 53, 0.72);
  --line:       rgba(150, 178, 212, 0.18);
  --line-hi:    rgba(150, 178, 212, 0.34);
  --accent:     #63c6ff;
  --accent-2:   #ffb347;
  --radius:     14px;
  --shadow:     0 18px 48px rgba(2, 6, 14, 0.55);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, 'SF Mono', 'Cascadia Mono', Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
  background: #05080e;
  color: var(--ink);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
}

#viewport {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
}

kbd {
  font-family: var(--mono);
  font-size: 0.82em;
  padding: 1px 6px;
  border-radius: 5px;
  border: 1px solid var(--line-hi);
  background: rgba(255, 255, 255, 0.07);
  color: var(--ink);
}

/* ─────────────────────────── boot ─────────────────────────── */
.boot {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background: radial-gradient(120% 90% at 50% 20%, #16233b 0%, #05080e 70%);
  z-index: 100;
  transition: opacity 0.6s ease, visibility 0.6s;
}
.boot.done { opacity: 0; visibility: hidden; pointer-events: none; }
.boot-inner { text-align: center; }
.boot-mark { font-size: 46px; opacity: 0.85; }
.boot-text {
  margin-top: 10px;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  font-size: 13px;
  color: var(--ink-dim);
  padding-left: 0.42em;
}
.boot-bar {
  margin: 20px auto 0;
  width: 160px; height: 2px;
  background: rgba(255, 255, 255, 0.1);
  overflow: hidden;
  border-radius: 2px;
}
.boot-bar span {
  display: block; width: 40%; height: 100%;
  background: var(--accent);
  animation: boot-slide 1.1s ease-in-out infinite;
}
@keyframes boot-slide {
  0% { transform: translateX(-120%); }
  100% { transform: translateX(320%); }
}

.boot-error {
  position: fixed; inset: 0; z-index: 200;
  display: none; place-items: center;
  background: #070b12; padding: 40px;
}
.boot-error-inner { max-width: 640px; }
.boot-error h1 { font-weight: 600; letter-spacing: 0.06em; }
.boot-error p { color: var(--ink-dim); font-size: 17px; line-height: 1.55; }
.boot-error pre {
  white-space: pre-wrap; font-family: var(--mono); font-size: 12px;
  color: var(--ink-faint); background: rgba(255,255,255,0.04);
  padding: 14px; border-radius: 10px; border: 1px solid var(--line);
}

/* ─────────────────────────── HUD ─────────────────────────── */
.hud {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 10;
  font-variant-numeric: tabular-nums;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.55);
}

.hud-top {
  position: absolute;
  top: 22px; left: 24px;
  display: flex; align-items: center; gap: 12px;
}
.chip {
  display: inline-grid; place-items: center;
  min-width: 34px; height: 34px; padding: 0 8px;
  border-radius: 9px;
  font-size: 15px; font-weight: 700;
  border: 1px solid var(--line-hi);
  backdrop-filter: blur(10px);
}
.hud-map-name { font-size: 19px; font-weight: 600; letter-spacing: 0.01em; }
.hud-map-meta { font-size: 12px; color: var(--ink-dim); margin-top: 2px; letter-spacing: 0.03em; }

.hud-centre {
  position: absolute;
  top: 30%; left: 0; right: 0;
  display: grid; place-items: center; gap: 6px;
  pointer-events: none;
}
.hud-air, .hud-status {
  font-size: 34px; font-weight: 300; letter-spacing: 0.06em;
  opacity: 0; transform: translateY(6px);
  transition: opacity 0.22s ease, transform 0.22s ease;
}
.hud-status { font-size: 17px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-dim); }
.hud-air.active, .hud-status.active { opacity: 0.92; transform: none; }

/* Lift prompt and ride progress */
.hud-prompt {
  position: absolute; left: 50%; bottom: 30%;
  transform: translate(-50%, 8px);
  padding: 9px 18px;
  border-radius: 999px;
  background: var(--glass-hi);
  border: 1px solid var(--line-hi);
  backdrop-filter: blur(12px);
  font-size: 14px;
  opacity: 0; pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.hud-prompt.active { opacity: 1; transform: translate(-50%, 0); }

.hud-ride {
  position: absolute; left: 50%; bottom: 26%;
  transform: translate(-50%, 8px);
  display: grid; justify-items: center; gap: 7px;
  padding: 13px 22px;
  border-radius: var(--radius);
  background: var(--glass);
  border: 1px solid var(--line);
  backdrop-filter: blur(14px);
  opacity: 0; pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
}
.hud-ride.active { opacity: 1; transform: translate(-50%, 0); }
.ride-label { font-size: 13px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--ink-dim); }
.ride-bar { width: 190px; height: 3px; border-radius: 3px; background: rgba(255,255,255,0.14); overflow: hidden; }
.ride-fill { height: 100%; width: 0%; background: linear-gradient(90deg, var(--accent), #d6f0ff); transition: width 0.25s linear; }
.ride-hint { font-size: 11px; color: var(--ink-faint); letter-spacing: 0.08em; }

.hud-reticle {
  position: absolute; inset: 0;
  display: grid; place-items: center;
}
.reticle-dot {
  width: 4px; height: 4px; border-radius: 50%;
  background: rgba(255, 255, 255, 0.42);
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.35);
}

.hud-minimap {
  position: absolute; left: 24px; bottom: 24px;
  padding: 8px;
  border-radius: var(--radius);
  background: var(--glass);
  border: 1px solid var(--line);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
}
.hud-minimap canvas { display: block; border-radius: 7px; }

/* Bottom-centre belongs to the ski tips — the readouts live in the corners. */
.hud-speed {
  position: absolute; right: 24px; bottom: 132px;
  display: grid; justify-items: end; gap: 7px;
}
.speed-row { display: flex; align-items: baseline; gap: 7px; }
.speed-value { font-size: 60px; font-weight: 200; line-height: 1; letter-spacing: -0.03em; }
.speed-unit { font-size: 13px; color: var(--ink-dim); letter-spacing: 0.16em; text-transform: uppercase; }
.speed-bar {
  width: 176px; height: 3px; border-radius: 3px;
  background: rgba(255, 255, 255, 0.13);
  overflow: hidden;
}
.speed-fill {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--accent), #b9e6ff 70%, var(--accent-2));
  transition: width 0.08s linear;
}
.surface-label {
  font-size: 11px; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--ink-dim);
}

.hud-stats {
  position: absolute; right: 24px; bottom: 24px;
  display: grid; gap: 5px; min-width: 176px;
  padding: 13px 15px;
  border-radius: var(--radius);
  background: var(--glass);
  border: 1px solid var(--line);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
}
.stat-row { display: flex; justify-content: space-between; gap: 16px; font-size: 12.5px; }
.stat-label { color: var(--ink-faint); letter-spacing: 0.04em; }
.stat-value { color: var(--ink); font-weight: 500; }

.hud-toasts {
  position: absolute; top: 104px; left: 24px;
  display: grid; gap: 8px; justify-items: start;
}
.toast {
  padding: 10px 15px;
  border-radius: 11px;
  background: var(--glass-hi);
  border: 1px solid var(--line);
  backdrop-filter: blur(14px);
  opacity: 0; transform: translateX(-10px);
  transition: opacity 0.35s ease, transform 0.35s ease;
  max-width: 340px;
  box-shadow: var(--shadow);
}
.toast.in { opacity: 1; transform: none; }
.toast-main { font-size: 14px; font-weight: 600; }
.toast-sub { font-size: 12px; color: var(--ink-dim); margin-top: 3px; line-height: 1.4; }

.hud-hint {
  position: absolute; top: 26px; left: 50%;
  transform: translateX(-50%);
  font-size: 12px; color: var(--ink-dim);
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--glass);
  border: 1px solid var(--line);
  backdrop-filter: blur(12px);
  white-space: nowrap;
  transition: opacity 1.4s ease;
}
.hud-hint.faded { opacity: 0; }

/* ─────────────────────────── menus ─────────────────────────── */
.menu {
  position: fixed; inset: 0; z-index: 50;
  display: none; align-items: center; justify-content: center;
  padding: 36px;
}
.menu-backdrop {
  position: absolute; inset: 0;
  background: radial-gradient(130% 100% at 50% 0%, rgba(20, 33, 56, 0.72), rgba(4, 7, 12, 0.9));
  backdrop-filter: blur(18px) saturate(120%);
}
.menu-panel {
  position: relative;
  width: min(1120px, 100%);
  max-height: 100%;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--line-hi) transparent;
}
.menu-panel::-webkit-scrollbar { width: 8px; }
.menu-panel::-webkit-scrollbar-thumb { background: var(--line-hi); border-radius: 8px; }

.screen { animation: rise 0.42s cubic-bezier(0.16, 1, 0.3, 1); }
@keyframes rise {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: none; }
}

h1, h2, h3 { margin: 0; font-weight: 600; letter-spacing: -0.01em; }

/* title */
.screen-title { display: grid; gap: 34px; justify-items: center; text-align: center; }
.brand { display: flex; align-items: center; gap: 20px; }
.brand-mark { font-size: 50px; opacity: 0.8; }
.brand-text h1 {
  font-size: clamp(42px, 8vw, 78px);
  font-weight: 200;
  letter-spacing: 0.16em;
  padding-left: 0.16em;
}
.tagline { margin: 8px 0 0; color: var(--ink-dim); font-size: 15px; letter-spacing: 0.02em; }
.title-actions { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; }
.title-facts {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px; width: min(680px, 100%);
}
.fact {
  padding: 16px 12px;
  border-radius: var(--radius);
  background: var(--glass);
  border: 1px solid var(--line);
  text-align: center;
}
.fact-value { font-size: 21px; font-weight: 300; }
.fact-label {
  margin-top: 4px; font-size: 10.5px; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--ink-faint);
}

/* buttons */
.btn {
  font: inherit; font-size: 14.5px; font-weight: 500;
  padding: 13px 26px;
  border-radius: 11px;
  border: 1px solid var(--line-hi);
  background: var(--glass-hi);
  color: var(--ink);
  cursor: pointer;
  transition: transform 0.14s ease, background 0.18s ease, border-color 0.18s ease;
}
.btn:hover { background: rgba(52, 70, 96, 0.8); transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn.primary {
  background: linear-gradient(180deg, #4fb8f5, #2b87c8);
  border-color: rgba(160, 220, 255, 0.45);
  color: #04121d;
  font-weight: 650;
}
.btn.primary:hover { background: linear-gradient(180deg, #66c6fb, #3897d8); }
.btn.ghost { background: rgba(255, 255, 255, 0.05); }
.btn.icon { padding: 9px 15px; font-size: 13px; }

/* map select */
.screen-head { display: flex; align-items: center; gap: 16px; margin-bottom: 20px; }
.screen-head h2 { font-size: 26px; font-weight: 300; letter-spacing: 0.03em; }

.tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
.tab {
  font: inherit; font-size: 13.5px;
  display: flex; align-items: center; gap: 8px;
  padding: 9px 15px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--ink-dim);
  cursor: pointer;
  transition: all 0.18s ease;
}
.tab:hover { color: var(--ink); border-color: var(--line-hi); }
.tab.active {
  background: rgba(99, 198, 255, 0.14);
  border-color: rgba(99, 198, 255, 0.45);
  color: var(--ink);
}
.tab-count {
  font-size: 11px; padding: 1px 7px; border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
}
.cat-blurb { color: var(--ink-faint); font-size: 13.5px; margin: 0 0 18px; }

.map-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 14px;
  padding-bottom: 20px;
}
.map-card {
  font: inherit; text-align: left; color: var(--ink);
  padding: 0; overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--glass);
  cursor: pointer;
  transition: transform 0.18s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.18s, box-shadow 0.18s;
}
.map-card:hover {
  transform: translateY(-3px);
  border-color: rgba(99, 198, 255, 0.42);
  box-shadow: var(--shadow);
}
.map-preview { display: block; width: 100%; height: auto; }
.card-body { padding: 14px 16px 16px; }
.card-top { display: flex; align-items: center; gap: 10px; }
.card-top h3 { font-size: 16.5px; }
.card-top .chip { min-width: 28px; height: 28px; font-size: 13px; }
.card-blurb {
  margin: 9px 0 12px; font-size: 12.8px; line-height: 1.5;
  color: var(--ink-dim);
}
.card-meta {
  display: flex; flex-wrap: wrap; gap: 6px;
  font-size: 11px; color: var(--ink-faint);
}
.card-meta span {
  padding: 3px 8px; border-radius: 6px;
  background: rgba(255, 255, 255, 0.055);
  letter-spacing: 0.03em;
}

/* settings */
.settings-cols {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 14px;
}
.settings-col {
  padding: 20px;
  border-radius: var(--radius);
  background: var(--glass);
  border: 1px solid var(--line);
}
.settings-col h3 {
  font-size: 11px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--ink-faint); margin-bottom: 14px;
}
.setting-row {
  display: grid; grid-template-columns: 1fr auto auto;
  align-items: center; gap: 12px;
  padding: 9px 0; font-size: 13.5px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}
.setting-row:first-of-type { border-top: none; }
.setting-label { color: var(--ink-dim); }
.setting-value { font-family: var(--mono); font-size: 12px; color: var(--ink); min-width: 44px; text-align: right; }

input[type='range'] {
  -webkit-appearance: none; appearance: none;
  width: 120px; height: 3px; border-radius: 3px;
  background: rgba(255, 255, 255, 0.16);
  outline: none; cursor: pointer;
}
input[type='range']::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--accent);
  border: 2px solid #08131d;
  cursor: pointer;
}
input[type='range']::-moz-range-thumb {
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--accent); border: 2px solid #08131d; cursor: pointer;
}

.setting-toggle { grid-template-columns: 1fr auto; cursor: pointer; }
.setting-toggle input { position: absolute; opacity: 0; pointer-events: none; }
.pill {
  width: 40px; height: 22px; border-radius: 999px;
  background: rgba(255, 255, 255, 0.13);
  border: 1px solid var(--line);
  position: relative;
  transition: background 0.2s ease;
}
.pill::after {
  content: ''; position: absolute;
  top: 2px; left: 2px; width: 16px; height: 16px;
  border-radius: 50%; background: var(--ink-dim);
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), background 0.2s;
}
.setting-toggle input:checked + .pill { background: rgba(99, 198, 255, 0.35); }
.setting-toggle input:checked + .pill::after { transform: translateX(18px); background: var(--accent); }

.setting-choice { grid-template-columns: 1fr auto; }
.choice-group { display: flex; gap: 4px; }
.choice {
  font: inherit; font-size: 12px;
  padding: 6px 12px; border-radius: 8px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--ink-dim); cursor: pointer;
  transition: all 0.16s ease;
}
.choice.active {
  background: rgba(99, 198, 255, 0.16);
  border-color: rgba(99, 198, 255, 0.45);
  color: var(--ink);
}
.settings-note {
  font-size: 11.5px; line-height: 1.55; color: var(--ink-faint);
  margin: 14px 0 0; padding-top: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* pause + loading */
.screen-pause, .screen-loading {
  display: grid; gap: 22px; justify-items: center; text-align: center;
  max-width: 620px; margin: 0 auto;
}
.screen-pause h2, .screen-loading h2 {
  font-size: 34px; font-weight: 200; letter-spacing: 0.1em;
}
.pause-sub { margin: 0; color: var(--ink-dim); font-size: 14.5px; line-height: 1.55; }
.pause-stats {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  gap: 10px; width: 100%;
}

.loading-eyebrow {
  font-size: 10.5px; letter-spacing: 0.28em; text-transform: uppercase;
  color: var(--ink-faint);
}
.progress {
  width: min(460px, 100%); height: 3px; border-radius: 3px;
  background: rgba(255, 255, 255, 0.12); overflow: hidden;
}
.progress-fill {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--accent), #d6f0ff);
  transition: width 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}
.progress-label { font-size: 12.5px; color: var(--ink-dim); letter-spacing: 0.05em; }
.tip {
  display: flex; align-items: center; gap: 10px;
  font-size: 12.5px; color: var(--ink-dim);
  padding: 12px 16px; border-radius: 11px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  max-width: 460px; text-align: left; line-height: 1.5;
}
.tip-tag {
  font-size: 9.5px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--accent); flex-shrink: 0;
}

@media (max-width: 720px) {
  .hud-minimap, .hud-stats { display: none; }
  .hud-hint { display: none; }
  .title-facts { grid-template-columns: repeat(2, 1fr); }
  .menu { padding: 18px; }
}