/* ═══════════════════════════════════════════════════════════════
   ASTROFALL — KINETIC ARCHIVE DESIGN SYSTEM
   Brutalist Archivist / Amber-Orange / Space Grotesk + Manrope
   ═══════════════════════════════════════════════════════════════ */

/* ─── TOKENS ────────────────────────────────────────────────── */
:root {
  --ka-surface:           #131314;
  --ka-surface-container: #1a1a1b;
  --ka-surface-high:      #222223;
  --ka-surface-highest:   #2a2a2b;
  --ka-primary:           #FFD7A9;
  --ka-primary-container: #FFB347;
  --ka-amber:             #E8A838;
  --ka-amber-dim:         rgba(255,179,71,.18);
  --ka-text:              #F0E6D6;
  --ka-text-dim:          #A09484;
  --ka-text-muted:        #6B6058;
  --ka-error:             #93000A;
  --ka-success:           #5ee0a0;
  --ka-outline:           rgba(82,69,53,.45);
  --ka-glass:             rgba(14,14,15,.55);
  --ka-glass-blur:        12px;
  --ka-font-display:      'Space Grotesk', sans-serif;
  --ka-font-body:         'Manrope', sans-serif;
  --ka-sidebar-w:         72px;
  --ka-topbar-h:          44px;
  --ka-console-h:         110px;
}

/* ─── RESET ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  font-family: var(--ka-font-body);
  color: var(--ka-text);
  background: var(--ka-surface);
  overflow: hidden;
}
button, input, select, textarea { font: inherit; }
[hidden] { display: none !important; }
.visually-hidden { position: absolute; width:1px; height:1px; margin:-1px; padding:0; border:0; overflow:hidden; clip:rect(0 0 0 0); }
.desktop-only { display: block; }
.mobile-only { display: none; }
@media (max-width: 768px) {
  .desktop-only { display: none !important; }
  .mobile-only { display: flex !important; }
}

/* Material Symbols size */
.material-symbols-outlined { font-size: 22px; line-height: 1; }

/* ─── SCANLINE OVERLAY (CRT feel) ─────────────────────────── */
body::after {
  content: '';
  position: fixed; inset: 0;
  pointer-events: none; z-index: 9999;
  background: repeating-linear-gradient(
    0deg,
    transparent 0px, transparent 2px,
    rgba(0,0,0,.06) 2px, rgba(0,0,0,.06) 4px
  );
  opacity: .35;
}

/* ═══════════════════════════════════════════════════════════════
   LANDING OVERLAY (Intro screen)
   ═══════════════════════════════════════════════════════════════ */
.landing-overlay {
  position: fixed; inset: 0; z-index: 100;
  display: grid; place-items: center;
  background: var(--ka-surface);
  padding: 24px;
}
.landing-overlay.hidden { display: none; }
.landing-overlay-grid, .landing-overlay-glow { position: absolute; inset:0; pointer-events:none; }
.landing-overlay-grid {
  background-image:
    linear-gradient(rgba(255,179,71,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,179,71,.04) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: linear-gradient(180deg, rgba(0,0,0,.8), transparent 85%);
}
.landing-overlay-glow-a { background: radial-gradient(circle at 20% 20%, rgba(255,179,71,.12), transparent 30%); }
.landing-overlay-glow-b { background: radial-gradient(circle at 80% 20%, rgba(232,168,56,.08), transparent 25%); }

.landing-hero {
  z-index: 1; width: min(680px, 100%); text-align: center;
  background: var(--ka-surface-container); border: 1px solid var(--ka-outline);
  padding: clamp(24px, 5vw, 42px);
}
.landing-hero .section-kicker { margin: 0 0 8px; color: var(--ka-amber); font-family: var(--ka-font-display); font-size: .7rem; letter-spacing: .2em; text-transform: uppercase; }
.landing-hero h1 { font-family: var(--ka-font-display); font-size: clamp(3rem,14vw,5.6rem); line-height:.92; letter-spacing:-.04em; color: var(--ka-primary); }
.landing-title-sub { margin: 6px 0 0; color: var(--ka-amber); font-family: var(--ka-font-display); font-size: clamp(1rem,3.5vw,1.5rem); letter-spacing:.12em; text-transform:uppercase; }
.landing-lead { max-width:500px; margin:16px auto 0; color: var(--ka-text-dim); font-size:clamp(.95rem,2vw,1.1rem); line-height:1.7; }
.landing-actions { display:flex; flex-wrap:wrap; justify-content:center; gap:10px; margin-top:22px; }
.landing-note { margin:16px 0 0; color: var(--ka-text-muted); font-size:.88rem; }

/* Landing buttons */
.btn { display:inline-flex; align-items:center; justify-content:center; gap:8px; min-height:44px; padding:0 18px; border:1px solid var(--ka-outline); background:rgba(255,255,255,.04); color: var(--ka-text); font-family: var(--ka-font-display); font-weight:600; letter-spacing:.06em; text-transform:uppercase; cursor:pointer; transition: background .15s, border-color .15s; }
.btn:hover:not(:disabled) { background:rgba(255,255,255,.08); border-color: var(--ka-primary-container); }
.btn:disabled { opacity:.4; cursor:not-allowed; }
.btn-primary { color: var(--ka-surface); border-color: var(--ka-primary-container); background: linear-gradient(135deg, var(--ka-primary-container), var(--ka-amber)); }
.btn-ghost { background:transparent; }

/* ═══════════════════════════════════════════════════════════════
   KA SHELL (Main app layout)
   ═══════════════════════════════════════════════════════════════ */
/* Lock body scroll when game shell is active */
body.ka-active { overflow: hidden; height: 100vh; }

.ka-shell {
  display: grid;
  grid-template-columns: var(--ka-sidebar-w) 1fr;
  grid-template-rows: var(--ka-topbar-h) 1fr;
  grid-template-areas:
    "topbar topbar"
    "sidebar main";
  height: 100vh;
  overflow: hidden;
}

/* ─── TOPBAR ────────────────────────────────────────────────── */
.ka-topbar {
  grid-area: topbar;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 16px 0 16px;
  background: var(--ka-surface-container);
  border-bottom: 1px solid var(--ka-outline);
  position: relative; z-index: 20;
}
.ka-topbar-glow {
  position:absolute; bottom:0; left:0; right:0; height:1px;
  background: linear-gradient(90deg, transparent, var(--ka-amber-dim), transparent);
}
.ka-topbar-left { display:flex; align-items:center; gap:24px; min-width:0; }
.ka-brand {
  font-family: var(--ka-font-display); font-size: .82rem; font-weight:700;
  letter-spacing: .15em; color: var(--ka-primary);
  white-space: nowrap;
}
.ka-nav { display:flex; gap:4px; }
.ka-nav-link {
  padding: 6px 12px; font-family: var(--ka-font-display); font-size:.7rem; font-weight:500;
  letter-spacing:.1em; color: var(--ka-text-muted); text-decoration:none; text-transform:uppercase;
  border: 1px solid transparent; transition: color .15s, border-color .15s;
}
.ka-nav-link:hover, .ka-nav-link.active { color: var(--ka-primary); border-color: var(--ka-outline); }

.ka-topbar-right { display:flex; align-items:center; gap:8px; }
.ka-route-chip {
  padding: 4px 12px; font-family: var(--ka-font-display); font-size:.65rem; font-weight:500;
  letter-spacing:.12em; text-transform:uppercase; color: var(--ka-amber);
  border: 1px solid var(--ka-amber-dim); background: rgba(255,179,71,.06);
  white-space: nowrap;
}
.ka-icon-btn {
  display:grid; place-items:center; width:36px; height:36px;
  border:1px solid var(--ka-outline); background:transparent; color: var(--ka-text-dim);
  cursor:pointer; transition: color .15s, border-color .15s;
}
.ka-icon-btn:hover { color: var(--ka-primary); border-color: var(--ka-primary-container); }

/* ─── SIDEBAR ───────────────────────────────────────────────── */
.ka-sidebar {
  grid-area: sidebar;
  display: flex; flex-direction: column;
  width: var(--ka-sidebar-w);
  background: var(--ka-surface-container);
  border-right: 1px solid var(--ka-outline);
  z-index: 15;
}
.ka-sidebar-mission-label {
  padding: 12px 0 8px; text-align:center;
  border-bottom: 1px solid var(--ka-outline);
}
.ka-mission-name {
  display:block; font-family: var(--ka-font-display); font-size:.65rem; font-weight:700;
  letter-spacing:.14em; color: var(--ka-primary);
}
.ka-mission-sub {
  display:block; font-size:.55rem; color: var(--ka-text-muted); letter-spacing:.18em; margin-top:2px;
}

.ka-sidebar-nav { flex:1; display:flex; flex-direction:column; padding: 8px 0; gap:2px; }

.ka-sidebar-btn {
  display: flex; flex-direction:column; align-items:center; justify-content:center;
  gap: 3px; padding: 10px 4px; border:none; background:transparent; color: var(--ka-text-muted);
  cursor:pointer; transition: color .15s, background .15s;
  position: relative;
}
.ka-sidebar-btn::before {
  content:''; position:absolute; left:0; top:8px; bottom:8px; width:2px;
  background: transparent; transition: background .15s;
}
.ka-sidebar-btn:hover { color: var(--ka-text); background: rgba(255,255,255,.03); }
.ka-sidebar-btn.active { color: var(--ka-primary); }
.ka-sidebar-btn.active::before { background: var(--ka-primary-container); }

.ka-sidebar-label {
  font-family: var(--ka-font-display); font-size:.5rem; font-weight:600;
  letter-spacing:.12em; text-transform:uppercase;
}

.ka-sidebar-unlock { color: var(--ka-amber); }
.ka-sidebar-unlock .material-symbols-outlined { color: var(--ka-amber); }

.ka-sidebar-bottom { padding:8px 0; border-top: 1px solid var(--ka-outline); }
.ka-abort-btn {
  display:block; width:calc(100% - 12px); margin:0 6px; padding:8px 4px;
  border:1px solid var(--ka-error); background: rgba(147,0,10,.15);
  color: #ff6b6b; font-family: var(--ka-font-display); font-size:.48rem; font-weight:700;
  letter-spacing:.1em; text-transform:uppercase; cursor:pointer;
  transition: background .15s;
}
.ka-abort-btn:hover { background: rgba(147,0,10,.35); }

/* ─── MAIN AREA ─────────────────────────────────────────────── */
.ka-main {
  grid-area: main;
  display: flex; flex-direction: column;
  overflow: hidden;
  position: relative;
}

.ka-canvas-wrap {
  flex: 1; position: relative; overflow: hidden;
  background: #0a0a0b;
}
.ka-canvas-wrap canvas {
  display: block; width: 100%; height: 100%;
}

/* ─── HUD CARDS ─────────────────────────────────────────────── */
.ka-hud {
  position: absolute; z-index: 5;
  display: flex; flex-direction: column; gap: 8px;
  pointer-events: none;
}
.ka-hud-left { top:16px; left:16px; }
.ka-hud-right { top:16px; right:16px; align-items: flex-end; }

.ka-hud-card {
  padding: 10px 14px; min-width: 160px;
  background: var(--ka-glass); backdrop-filter: blur(var(--ka-glass-blur));
  border: 1px solid var(--ka-outline);
}
.ka-hud-card.right-align { text-align: right; }

.ka-hud-label {
  font-family: var(--ka-font-display); font-size:.55rem; font-weight:500;
  letter-spacing:.14em; color: var(--ka-text-muted); text-transform:uppercase; margin-bottom:4px;
}
.ka-hud-value {
  font-family: var(--ka-font-display); font-size:1.6rem; font-weight:700;
  color: var(--ka-primary); line-height:1;
}
.ka-hud-value.big { font-size:2rem; }
.ka-hud-unit { font-size:.7rem; font-weight:400; color: var(--ka-text-dim); }
.ka-hud-value-row { display:flex; align-items:baseline; gap:8px; }
.ka-hud-subtle { font-size:.6rem; color: var(--ka-text-muted); letter-spacing:.08em; }

.ka-hud-bar-track {
  margin-top: 6px; height: 3px; background: rgba(255,255,255,.08);
}
.ka-hud-bar-track.thick { height: 5px; }
.ka-hud-bar-fill {
  height: 100%; background: linear-gradient(90deg, var(--ka-amber), var(--ka-primary-container));
  transition: width .2s ease;
}

.ka-hud-limits {
  margin-top:8px; display:flex; flex-direction:column; gap:2px;
}
.ka-hud-limits .limit-item {
  font-family: var(--ka-font-display); font-size:.6rem; color: var(--ka-text-muted);
  letter-spacing:.08em;
}

/* Radar card */
.ka-radar-card {
  width:100px; height:100px; position:relative;
  background: var(--ka-glass); backdrop-filter: blur(var(--ka-glass-blur));
  border: 1px solid var(--ka-outline); overflow:hidden;
}
.ka-radar-scanline {
  position:absolute; width:100%; height:2px; top:50%;
  background: linear-gradient(90deg, transparent, var(--ka-amber-dim), transparent);
  animation: radarScan 3s ease-in-out infinite;
}
@keyframes radarScan {
  0%,100% { top:10%; opacity:.3; }
  50% { top:90%; opacity:.8; }
}
.ka-radar-rings { position:absolute; inset:0; display:grid; place-items:center; }
.ka-radar-ring { border-radius:50%; border:1px solid rgba(255,179,71,.12); position:absolute; }
.ka-radar-ring.outer { width:70%; height:70%; }
.ka-radar-ring.inner { width:40%; height:40%; }
.ka-radar-dot { width:4px; height:4px; background: var(--ka-primary-container); border-radius:50%; position:absolute; }
.ka-radar-range {
  position:absolute; bottom:4px; left:6px;
  font-family: var(--ka-font-display); font-size:.45rem; color: var(--ka-text-muted);
  letter-spacing:.1em;
}

/* Center pitch */
.ka-hud-center {
  position:absolute; bottom:120px; left:50%; transform:translateX(-50%);
  z-index:5; pointer-events:none; text-align:center;
}
.ka-pitch-bar { width:200px; }
.ka-pitch-marks { display:flex; justify-content:space-between; }
.ka-pitch-marks span { font-family: var(--ka-font-display); font-size:.5rem; color: var(--ka-text-muted); }
.ka-pitch-line {
  height:2px; background: rgba(255,255,255,.1); margin:2px 0; position:relative;
}
.ka-pitch-needle {
  position:absolute; top:-3px; left:50%; width:2px; height:8px;
  background: var(--ka-primary-container); transform:translateX(-50%);
}
.ka-pitch-readout {
  margin-top:4px; font-family: var(--ka-font-display); font-size:.6rem;
  color: var(--ka-text-dim); letter-spacing:.1em;
}

/* Drift bar */
.ka-hud-drift {
  position:absolute; bottom:16px; left:16px; z-index:5; pointer-events:none;
  display:flex; gap:16px; font-family: var(--ka-font-display); font-size:.65rem;
  color: var(--ka-text-muted); letter-spacing:.06em;
}
.ka-hud-drift strong { color: var(--ka-primary); }

/* ─── LANDING RESULT ────────────────────────────────────────── */
.ka-result-panel {
  position:absolute; inset:0; z-index:10;
  display:grid; place-items:center;
  background: rgba(19,19,20,.88); backdrop-filter:blur(8px);
  text-align:center; padding:24px;
}
.ka-result-kicker {
  font-family: var(--ka-font-display); font-size:.7rem; letter-spacing:.16em;
  color: var(--ka-amber); text-transform:uppercase; margin-bottom:8px;
}
.ka-result-panel h3 {
  font-family: var(--ka-font-display); font-size:1.8rem; font-weight:700;
  color: var(--ka-primary); margin-bottom:8px;
}
.ka-result-panel p { color: var(--ka-text-dim); max-width:420px; line-height:1.6; }
.ka-result-actions { margin-top:18px; display:flex; gap:10px; justify-content:center; }

/* KA Buttons */
.ka-btn { display:inline-flex; align-items:center; gap:8px; padding:8px 16px; border:1px solid var(--ka-outline); background:rgba(255,255,255,.04); color: var(--ka-text); font-family: var(--ka-font-display); font-weight:600; font-size:.78rem; letter-spacing:.06em; text-transform:uppercase; cursor:pointer; }
.ka-btn-primary { color: var(--ka-surface); background: var(--ka-primary-container); border-color: var(--ka-primary-container); }
.ka-btn-ghost { background:transparent; }

/* Touch controls */
.ka-touch-controls {
  position: absolute; bottom: 0; left: 0; right: 0;
  display: none; z-index: 8;
}
.ka-touch-btn {
  flex: 1; padding: 18px; border: none;
  background: rgba(255,179,71,.08);
  color: var(--ka-primary); font-family: var(--ka-font-display);
  font-size: 1.4rem; font-weight: 700; cursor: pointer;
}
.ka-touch-btn:active { background: rgba(255,179,71,.2); }

/* ─── BOTTOM CONSOLE ────────────────────────────────────────── */
.ka-console {
  height: var(--ka-console-h);
  display: flex;
  background: var(--ka-surface-container);
  border-top: 1px solid var(--ka-outline);
  position: relative;
}

.ka-console-cluster {
  display: flex; gap: 12px; padding: 8px 12px; align-items: stretch;
}
.ka-console-cluster.right { margin-left: auto; }

.ka-console-group {
  display: flex; flex-direction: column; gap: 4px; min-width: 60px;
}
.ka-console-label {
  font-family: var(--ka-font-display); font-size:.48rem; font-weight:600;
  letter-spacing:.12em; color: var(--ka-text-muted); text-transform:uppercase;
}

/* RCS toggles */
.ka-rcs-switches { display:flex; gap:4px; }
.ka-rcs-switch { width:28px; height:16px; border:1px solid var(--ka-outline); background: var(--ka-surface-high); display:grid; place-items:center; }
.ka-rcs-toggle { font-size:.45rem; color: var(--ka-success); font-weight:700; letter-spacing:.05em; }

/* Propellant gauge */
.ka-propellant-gauge { display:flex; align-items:center; gap:6px; flex:1; }
.ka-prop-bar { width:40px; height:6px; background: var(--ka-surface-high); border:1px solid var(--ka-outline); position:relative; overflow:hidden; }
.ka-prop-bar::after { content:''; position:absolute; inset:0; width:70%; background: var(--ka-amber); }
.ka-prop-dial { width:24px; height:24px; border-radius:50%; border:1px solid var(--ka-outline); background: var(--ka-surface-high); position:relative; }
.ka-prop-needle { position:absolute; top:2px; left:50%; width:1px; height:10px; background: var(--ka-primary); transform-origin: bottom center; transform: translateX(-50%) rotate(30deg); }
.ka-prop-psi { font-family: var(--ka-font-display); font-size:.5rem; color: var(--ka-text-muted); letter-spacing:.06em; white-space:nowrap; }

/* Console log */
.ka-console-log {
  flex:1; padding:6px 12px; position:relative; overflow:hidden;
  border-left:1px solid var(--ka-outline); border-right:1px solid var(--ka-outline);
}
.ka-log-scanline {
  position:absolute; inset:0; pointer-events:none;
  background: repeating-linear-gradient(0deg, transparent 0px, transparent 3px, rgba(255,179,71,.02) 3px, rgba(255,179,71,.02) 4px);
}
.ka-log-header {
  display:flex; justify-content:space-between;
  font-family: var(--ka-font-display); font-size:.5rem; color: var(--ka-text-muted);
  letter-spacing:.1em; margin-bottom:4px;
}
.ka-log-entries {
  list-style:none; font-family: var(--ka-font-display); font-size:.55rem;
  color: var(--ka-amber); line-height:1.6; letter-spacing:.04em;
}

/* Vertical gauge */
.ka-gauge-vertical {
  width:16px; height:50px; background: var(--ka-surface-high);
  border:1px solid var(--ka-outline); position:relative; overflow:hidden;
}
.ka-gauge-fill {
  position:absolute; bottom:0; left:0; right:0;
  background: linear-gradient(0deg, var(--ka-amber), var(--ka-primary-container));
  transition: height .3s;
}
.ka-gauge-reading {
  font-family: var(--ka-font-display); font-size:.5rem; color: var(--ka-text-dim);
  letter-spacing:.06em;
}

/* Console action (LAUNCH) */
.ka-console-action { display:flex; align-items:flex-end; }
.ka-btn-launch {
  padding: 10px 20px; border: 1px solid var(--ka-primary-container);
  background: linear-gradient(135deg, rgba(255,179,71,.15), rgba(255,179,71,.05));
  color: var(--ka-primary); font-family: var(--ka-font-display); font-size:.72rem;
  font-weight:700; letter-spacing:.12em; text-transform:uppercase;
  cursor:pointer; transition: background .2s, box-shadow .2s;
}
.ka-btn-launch:hover {
  background: linear-gradient(135deg, rgba(255,179,71,.3), rgba(255,179,71,.12));
  box-shadow: 0 0 20px rgba(255,179,71,.15);
}

/* Mobile launch */
.ka-mobile-launch {
  display: none; padding: 8px;
  background: var(--ka-surface-container);
  border-top: 1px solid var(--ka-outline);
}
.ka-mobile-launch .ka-btn-launch { width:100%; text-align:center; }

/* ═══════════════════════════════════════════════════════════════
   OVERLAYS (TARGETS / HANGAR / LOGS)
   ═══════════════════════════════════════════════════════════════ */
.ka-overlay {
  position: fixed; inset: 0; z-index: 50;
  background: rgba(19,19,20,.92); backdrop-filter: blur(6px);
  display: grid; place-items: center;
  padding: 24px;
  overflow-y: auto;
}
.ka-overlay-content {
  width: min(800px, 100%);
  background: var(--ka-surface-container);
  border: 1px solid var(--ka-outline);
  padding: 24px;
  max-height: 90vh;
  overflow-y: auto;
}
.ka-overlay-header {
  display:flex; justify-content:space-between; align-items:center; margin-bottom:16px;
}
.ka-overlay-header h2 {
  font-family: var(--ka-font-display); font-size:1.1rem; font-weight:700;
  letter-spacing:.1em; color: var(--ka-primary);
}
.ka-overlay-close {
  width:36px; height:36px; border:1px solid var(--ka-outline); background:transparent;
  color: var(--ka-text-dim); font-size:1.2rem; cursor:pointer; display:grid; place-items:center;
}
.ka-overlay-close:hover { color: var(--ka-primary); border-color: var(--ka-primary-container); }

.ka-overlay-meta {
  font-family: var(--ka-font-display); font-size:.7rem; color: var(--ka-text-muted);
  letter-spacing:.1em; margin-bottom:8px;
}
.ka-overlay-tags { display:flex; gap:8px; margin-bottom:16px; }
.ka-tag {
  padding:3px 10px; font-family: var(--ka-font-display); font-size:.6rem; font-weight:600;
  letter-spacing:.1em; text-transform:uppercase;
}
.ka-tag-free { color: var(--ka-success); border:1px solid rgba(94,224,160,.3); background: rgba(94,224,160,.06); }
.ka-tag-all { color: var(--ka-amber); border:1px solid var(--ka-amber-dim); background: rgba(255,179,71,.06); }

.ka-overlay-hint { font-size:.8rem; color: var(--ka-text-muted); margin-top:12px; }

/* Card grid (planet / ship select) */
.ka-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 8px;
}
.ka-select-card {
  display: flex; flex-direction: column; gap: 4px;
  padding: 12px; border: 1px solid var(--ka-outline);
  background: var(--ka-surface-high);
  color: var(--ka-text); font-family: var(--ka-font-display);
  cursor: pointer; text-align: left;
  transition: border-color .15s, background .15s;
}
.ka-select-card:hover { border-color: var(--ka-amber-dim); background: var(--ka-surface-highest); }
.ka-select-card.selected { border-color: var(--ka-primary-container); background: rgba(255,179,71,.08); }
.ka-select-card.locked { opacity:.45; }

.ka-card-name, .ka-card-tier { font-size:.6rem; color: var(--ka-text-muted); letter-spacing:.1em; text-transform:uppercase; }
.ka-select-card strong { font-size:.85rem; color: var(--ka-primary); }
.ka-select-card small { font-size:.65rem; color: var(--ka-text-dim); }

/* Run summary in targets overlay */
.ka-run-summary {
  margin-top:20px; padding:16px; border:1px solid var(--ka-outline);
  background: var(--ka-surface-high);
}
.ka-run-summary-head { display:flex; justify-content:space-between; align-items:flex-start; }
.ka-run-summary h3 { font-family: var(--ka-font-display); font-size:1.1rem; color: var(--ka-primary); }
.ka-run-ship { font-size:.85rem; color: var(--ka-text-dim); margin-top:4px; }

.ka-difficulty-badge { text-align:right; }
.ka-difficulty-badge span { display:block; font-size:.6rem; color: var(--ka-text-muted); letter-spacing:.1em; text-transform:uppercase; }
.ka-difficulty-badge strong { display:block; font-family: var(--ka-font-display); font-size:1.1rem; color: var(--ka-primary); }

.ka-difficulty-meter { height:4px; background: var(--ka-surface); margin-top:10px; }
.ka-difficulty-fill { height:100%; background: linear-gradient(90deg, var(--ka-success), var(--ka-amber), var(--ka-error)); transition: width .3s; }

.ka-run-stats { display:flex; gap:16px; margin-top:12px; flex-wrap:wrap; }
.ka-run-stats > div { display:flex; flex-direction:column; gap:2px; }
.ka-run-stats span { font-size:.6rem; color: var(--ka-text-muted); letter-spacing:.06em; text-transform:uppercase; }
.ka-run-stats strong { font-family: var(--ka-font-display); font-size:.8rem; color: var(--ka-text); }

/* Stats panel */
.ka-stats-panel { min-height: 200px; }

/* ═══════════════════════════════════════════════════════════════
   MODALS (Login / Purchase / Leaderboard)
   ═══════════════════════════════════════════════════════════════ */
.modal {
  position: fixed; inset: 0; z-index: 60;
  display: grid; place-items: center;
  background: rgba(19,19,20,.92); backdrop-filter: blur(6px);
  padding: 24px;
}
.modal-card {
  width: min(480px, 100%);
  background: var(--ka-surface-container);
  border: 1px solid var(--ka-outline);
  padding: 28px;
  position: relative;
}
.modal-card .section-kicker { margin: 0 0 8px; color: var(--ka-amber); font-family: var(--ka-font-display); font-size: .65rem; letter-spacing: .18em; text-transform: uppercase; }
.modal-card h3 { font-family: var(--ka-font-display); font-size:1.2rem; color: var(--ka-primary); margin-bottom:10px; }
.modal-close {
  position:absolute; top:12px; right:12px; width:32px; height:32px;
  border:1px solid var(--ka-outline); background:transparent; color: var(--ka-text-dim);
  font-size:.9rem; cursor:pointer; display:grid; place-items:center;
}
.modal-close:hover { color: var(--ka-primary); }
.modal-copy { font-size:.88rem; color: var(--ka-text-dim); line-height:1.65; margin-bottom:12px; }
.modal-action-stack { display:flex; flex-direction:column; gap:10px; margin-top:16px; }
.modal-inline-actions { display:flex; gap:8px; margin-top:12px; }

/* Purchase specifics */
.purchase-price-line { font-family: var(--ka-font-display); color: var(--ka-primary); margin:8px 0; }
.purchase-login-gate { padding:14px; border:1px solid var(--ka-outline); background: var(--ka-surface-high); margin-bottom:12px; }
.purchase-login-gate p { font-size:.85rem; color: var(--ka-text-dim); margin-bottom:10px; }

.btn-premium { color: var(--ka-surface); border-color: var(--ka-primary-container); background: linear-gradient(135deg, var(--ka-primary-container), var(--ka-amber)); }

/* Leaderboard */
.leaderboard-modal-card { width: min(700px, 100%); }
.leaderboard-filter { margin-bottom:16px; }
.leaderboard-filter label { font-family: var(--ka-font-display); font-size:.7rem; color: var(--ka-text-muted); letter-spacing:.08em; margin-right:8px; }
.leaderboard-filter select {
  padding:6px 10px; background: var(--ka-surface-high); border:1px solid var(--ka-outline);
  color: var(--ka-text); font-family: var(--ka-font-display); font-size:.8rem;
}
.leaderboard-privacy-hint, .leaderboard-status-hint { font-size:.75rem; color: var(--ka-text-muted); margin-top:4px; }
.leaderboard-grid { display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.leaderboard-panel h4 { font-family: var(--ka-font-display); font-size:.85rem; color: var(--ka-primary); margin-bottom:8px; letter-spacing:.06em; }
.stats-table { width:100%; border-collapse:collapse; font-size:.78rem; }
.stats-table th { text-align:left; padding:4px 6px; color: var(--ka-text-muted); font-weight:500; border-bottom:1px solid var(--ka-outline); font-size:.65rem; letter-spacing:.08em; text-transform:uppercase; }
.stats-table td { padding:4px 6px; border-bottom:1px solid rgba(82,69,53,.2); }

/* ═══════════════════════════════════════════════════════════════
   ABOUT & FOOTER
   ═══════════════════════════════════════════════════════════════ */
.ka-about {
  padding: 32px 24px;
  background: var(--ka-surface-container);
  border-top: 1px solid var(--ka-outline);
}
.ka-about-grid { max-width: 900px; margin:0 auto; display:grid; grid-template-columns:1fr 1fr; gap:32px; }
.ka-about-copy h2 { font-family: var(--ka-font-display); font-size:1.2rem; color: var(--ka-primary); margin-bottom:12px; }
.ka-about-copy p { color: var(--ka-text-dim); line-height:1.7; margin-bottom:12px; }
.ka-about-links { display:flex; flex-wrap:wrap; gap:6px; margin-top:12px; }
.ka-link-pill { padding:4px 12px; border:1px solid var(--ka-outline); color: var(--ka-text-dim); font-family: var(--ka-font-display); font-size:.7rem; letter-spacing:.06em; text-decoration:none; transition: color .15s, border-color .15s; }
.ka-link-pill:hover { color: var(--ka-primary); border-color: var(--ka-primary-container); }
.ka-faq h3 { font-family: var(--ka-font-display); font-size:.9rem; color: var(--ka-primary); margin-bottom:12px; }
.ka-faq article { padding:12px 0; border-bottom:1px solid var(--ka-outline); }
.ka-faq h4 { font-family: var(--ka-font-display); font-size:.82rem; color: var(--ka-text); margin-bottom:4px; }
.ka-faq p { font-size:.82rem; color: var(--ka-text-dim); line-height:1.6; }

.ka-footer {
  padding: 12px 24px; display:flex; justify-content:space-between; align-items:center;
  background: var(--ka-surface-container); border-top:1px solid var(--ka-outline);
  font-size:.72rem; color: var(--ka-text-muted);
}
.ka-footer-links { display:flex; gap:4px; }
.ka-footer-links a { color: var(--ka-text-muted); text-decoration:none; }
.ka-footer-links a:hover { color: var(--ka-primary); }

/* ═══════════════════════════════════════════════════════════════
   MOBILE RESPONSIVE (≤768px)
   ═══════════════════════════════════════════════════════════════ */
@media (max-width: 768px) {
  :root {
    --ka-sidebar-w: 0px;
    --ka-topbar-h: 40px;
    --ka-console-h: 0px;
  }

  .ka-shell {
    grid-template-columns: 1fr;
    grid-template-areas:
      "topbar"
      "main";
  }

  .ka-sidebar { display: none; }
  .ka-console { display: none !important; }

  .ka-topbar { padding: 0 8px; }
  .ka-brand { font-size: .65rem; letter-spacing: .1em; }
  .ka-route-chip { display: none; }

  .ka-canvas-wrap { flex: 1; }

  .ka-hud-left { top:8px; left:8px; }
  .ka-hud-right { top:8px; right:8px; }
  .ka-hud-card { padding:6px 8px; min-width:100px; }
  .ka-hud-value { font-size:1.1rem; }
  .ka-hud-label { font-size:.45rem; }
  .ka-radar-card { width:60px; height:60px; }
  .ka-hud-center { bottom:80px; }

  .ka-touch-controls { display: flex; }

  .ka-mobile-launch { display: flex; }

  .ka-result-panel h3 { font-size:1.2rem; }

  .ka-overlay-content { padding:16px; }
  .ka-card-grid { grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); gap:6px; }

  .leaderboard-grid { grid-template-columns: 1fr; }
  .modal-card { padding:20px; }
}

/* ─── ANIMATION UTILITIES ───────────────────────────────────── */
@keyframes fadeIn {
  from { opacity:0; transform:translateY(8px); }
  to { opacity:1; transform:translateY(0); }
}