/* ============================================================
   SIGNALBREAKER — style.css
   Dark sci-fi HUD theme. System font stack (no webfonts).
   All UI is DOM layered over the <canvas id="game">.
   ============================================================ */

:root {
  --bg: #04060c;
  --panel: rgba(8, 14, 26, 0.86);
  --panel-2: rgba(10, 18, 34, 0.92);
  --line: rgba(74, 217, 255, 0.28);
  --line-soft: rgba(74, 217, 255, 0.12);
  --cyan: #4ad9ff;
  --cyan-dim: #1e7d99;
  --green: #4affc0;
  --amber: #ffd24a;
  --orange: #ffb347;
  --red: #ff5470;
  --magenta: #ff5ad2;
  --violet: #c77dff;
  --text: #cfe8ff;
  --text-dim: #6f92b8;
  --text-faint: #43607e;
  --font: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --mono: "Cascadia Mono", "Consolas", "Courier New", monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body {
  width: 100%; height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  -webkit-user-select: none; user-select: none;
}

#game {
  position: fixed; inset: 0;
  width: 100vw; height: 100vh;
  display: block;
  background: var(--bg);
  cursor: crosshair;
}

.hidden { display: none !important; }

/* ============================================================
   HUD
   ============================================================ */
.sb-root { position: fixed; inset: 0; pointer-events: none; z-index: 10; }
.sb-root .btn, .sb-root .upg-card, .sb-root .set-row { pointer-events: auto; }

.sb-hud { position: absolute; inset: 0; }
.sb-hud > * { position: absolute; }
.sb-root:not(.in-run) .sb-hud { visibility: hidden; }

/* --- vitals (top-left) --- */
.sb-vitals { top: 16px; left: 16px; width: 264px; }

.bar {
  position: relative;
  height: 14px;
  background: rgba(6, 12, 22, 0.9);
  border: 1px solid var(--line-soft);
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 0 100%);
}
.bar .fill {
  position: absolute; inset: 0;
  width: 100%;
  transition: width 0.12s linear;
}
.bar-hp { height: 18px; }
.bar-hp .fill { background: linear-gradient(90deg, #1db97a, #4affc0); box-shadow: 0 0 10px rgba(74, 255, 192, 0.45); }
.bar-sh { height: 10px; margin-top: 4px; }
.bar-sh .fill { background: linear-gradient(90deg, #1e7d99, #4ad9ff); box-shadow: 0 0 8px rgba(74, 217, 255, 0.4); }
.bar-text {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font: 600 10px var(--mono);
  color: #eaffff;
  text-shadow: 0 1px 2px rgba(0,0,0,0.9);
  letter-spacing: 0.5px;
}

.lvl-badge {
  display: flex; align-items: center; gap: 8px;
  margin-top: 10px;
}
.lvl-word {
  font: 700 11px var(--mono);
  color: var(--amber);
  letter-spacing: 2px;
}
.lvl-num {
  font: 700 22px var(--mono);
  color: var(--amber);
  text-shadow: 0 0 12px rgba(255, 210, 74, 0.6);
}
.bar-xp { margin-top: 5px; height: 7px; }
.bar-xp .fill { background: linear-gradient(90deg, #8a6d1f, var(--amber)); }

.berserk-tag {
  margin-top: 8px;
  font: 700 12px var(--mono);
  letter-spacing: 4px;
  color: var(--orange);
  text-shadow: 0 0 14px rgba(255, 179, 71, 0.9);
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity 0.15s, transform 0.15s;
}
.berserk-tag.on { opacity: 1; transform: translateX(0); animation: pulse 0.5s ease-in-out infinite alternate; }

/* --- top center --- */
.sb-topmid { top: 16px; left: 50%; transform: translateX(-50%); text-align: center; }
.relay-pips { display: flex; gap: 8px; justify-content: center; }
.pip {
  width: 14px; height: 14px;
  border: 2px solid var(--cyan-dim);
  transform: rotate(45deg);
  background: rgba(6, 12, 22, 0.8);
  transition: all 0.3s;
}
.pip.next { border-color: var(--cyan); box-shadow: 0 0 10px rgba(74, 217, 255, 0.5); animation: pipPulse 1.4s ease-in-out infinite; }
.pip.done { background: var(--cyan); border-color: var(--cyan); box-shadow: 0 0 14px rgba(74, 217, 255, 0.9); }
.run-time {
  margin-top: 10px;
  font: 700 20px var(--mono);
  color: var(--text);
  letter-spacing: 2px;
  text-shadow: 0 0 12px rgba(74, 217, 255, 0.35);
}

/* --- top right --- */
.sb-topright { top: 16px; right: 16px; text-align: right; }
.score {
  font: 700 26px var(--mono);
  color: #eaffff;
  text-shadow: 0 0 14px rgba(74, 217, 255, 0.4);
}
.seed { margin-top: 6px; font: 600 10px var(--mono); color: var(--text-dim); letter-spacing: 1px; }
.fps { margin-top: 3px; font: 600 10px var(--mono); color: var(--text-faint); }

/* --- boss bar (bottom center) --- */
.boss-box {
  bottom: 26px; left: 50%; transform: translateX(-50%);
  width: min(640px, 70vw);
  background: var(--panel);
  border: 1px solid rgba(255, 90, 210, 0.35);
  padding: 10px 14px 12px;
  box-shadow: 0 0 30px rgba(255, 90, 210, 0.15);
}
.boss-name {
  font: 700 13px var(--mono);
  letter-spacing: 5px;
  color: var(--magenta);
  text-shadow: 0 0 12px rgba(255, 90, 210, 0.7);
  margin-bottom: 7px;
}
.bar-boss { height: 12px; }
.bar-boss .fill { background: linear-gradient(90deg, #b1318f, var(--magenta)); box-shadow: 0 0 10px rgba(255, 90, 210, 0.5); }
.boss-phase { display: flex; gap: 6px; justify-content: center; margin-top: 7px; }
.phase-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: rgba(60, 30, 70, 0.9);
  border: 1px solid rgba(255, 90, 210, 0.4);
}
.phase-dot.on { background: var(--magenta); box-shadow: 0 0 8px rgba(255, 90, 210, 0.9); }

/* --- extraction bar --- */
.ex-box {
  bottom: 26px; left: 50%; transform: translateX(-50%);
  width: min(520px, 60vw);
  background: var(--panel);
  border: 1px solid rgba(74, 255, 192, 0.4);
  padding: 10px 14px 12px;
  box-shadow: 0 0 30px rgba(74, 255, 192, 0.15);
  text-align: center;
}
.ex-box.outside { border-color: rgba(255, 210, 74, 0.5); box-shadow: 0 0 30px rgba(255, 210, 74, 0.15); }
.ex-label { font: 700 12px var(--mono); letter-spacing: 3px; color: var(--green); margin-bottom: 7px; }
.ex-box.outside .ex-label { color: var(--amber); }
.bar-ex { height: 12px; }
.bar-ex .fill { background: linear-gradient(90deg, #1db97a, var(--green)); box-shadow: 0 0 10px rgba(74, 255, 192, 0.5); }
.ex-pct { margin-top: 5px; font: 700 12px var(--mono); color: var(--text); }

/* --- minimap --- */
.minimap {
  position: absolute; bottom: 16px; right: 16px;
  width: 168px; height: 168px;
  border: 1px solid var(--line);
  background: rgba(4, 7, 14, 0.85);
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.6), inset 0 0 30px rgba(74, 217, 255, 0.05);
}

/* ============================================================
   ANNOUNCEMENTS
   ============================================================ */
.sb-announce {
  position: absolute; top: 18%; left: 50%; transform: translateX(-50%);
  text-align: center; white-space: nowrap;
}
.ann-text {
  font: 800 clamp(28px, 5vw, 54px) var(--mono);
  letter-spacing: 8px;
  color: var(--ann-color, var(--cyan));
  text-shadow: 0 0 30px var(--ann-color, var(--cyan));
}
.ann-sub {
  margin-top: 8px;
  font: 600 clamp(11px, 1.4vw, 15px) var(--mono);
  letter-spacing: 4px;
  color: var(--text-dim);
}

@keyframes sbAnnounce {
  0%   { opacity: 0; transform: translateX(-50%) scale(1.25); filter: blur(6px); }
  12%  { opacity: 1; transform: translateX(-50%) scale(1); filter: blur(0); }
  80%  { opacity: 1; }
  100% { opacity: 0; transform: translateX(-50%) scale(0.98); }
}

/* ============================================================
   OVERLAY SCREENS
   ============================================================ */
.sb-overlay {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: rgba(3, 5, 10, 0.55);
  backdrop-filter: blur(3px);
}
.sb-overlay:empty, .sb-overlay.hidden { display: none; }

.screen {
  display: flex; flex-direction: column; align-items: center;
  padding: 30px; max-width: 960px; width: 100%;
  text-align: center;
}

.screen-title {
  font: 800 clamp(26px, 4.5vw, 44px) var(--mono);
  letter-spacing: 10px;
  color: var(--cyan);
  text-shadow: 0 0 26px rgba(74, 217, 255, 0.6);
  margin-bottom: 18px;
}
.over-title { color: var(--red); text-shadow: 0 0 26px rgba(255, 84, 112, 0.7); }
.win-title { color: var(--green); text-shadow: 0 0 26px rgba(74, 255, 192, 0.7); }

/* --- title --- */
.logo {
  font: 800 clamp(44px, 9vw, 96px) var(--mono);
  letter-spacing: 6px;
  line-height: 0.95;
  color: #eaffff;
  text-shadow: 0 0 40px rgba(74, 217, 255, 0.55), 0 0 90px rgba(74, 217, 255, 0.25);
}
.logo span { color: var(--cyan); }
.tagline {
  margin: 18px 0 34px;
  font: 600 12px var(--mono);
  letter-spacing: 3px;
  color: var(--text-dim);
}
.title-row { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; justify-content: center; }

.btn {
  font: 700 14px var(--mono);
  letter-spacing: 3px;
  color: var(--text);
  background: rgba(10, 20, 38, 0.9);
  border: 1px solid var(--line);
  padding: 13px 30px;
  cursor: pointer;
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
  transition: all 0.15s;
}
.btn:hover { background: rgba(20, 40, 70, 0.95); border-color: var(--cyan); box-shadow: 0 0 20px rgba(74, 217, 255, 0.35); color: #fff; }
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: linear-gradient(180deg, rgba(30, 125, 153, 0.9), rgba(15, 60, 80, 0.9));
  border-color: var(--cyan);
  color: #fff;
  font-size: 16px;
  padding: 15px 40px;
}
.btn-primary:hover { background: linear-gradient(180deg, rgba(40, 155, 190, 1), rgba(20, 80, 105, 1)); box-shadow: 0 0 30px rgba(74, 217, 255, 0.5); }
.btn-small { font-size: 11px; padding: 9px 18px; letter-spacing: 2px; }
.btn-ghost { background: transparent; border-color: var(--line-soft); color: var(--text-dim); }

.stats-row {
  display: flex; gap: 12px; margin: 30px 0 26px; flex-wrap: wrap; justify-content: center;
}
.stat {
  min-width: 118px;
  background: var(--panel);
  border: 1px solid var(--line-soft);
  padding: 10px 14px;
}
.stat b { display: block; font: 700 20px var(--mono); color: var(--cyan); }
.stat i { display: block; margin-top: 3px; font: 600 9px var(--mono); letter-spacing: 2px; color: var(--text-faint); font-style: normal; }
.controls-hint {
  margin-top: 4px;
  font: 600 11px var(--mono);
  letter-spacing: 1px;
  color: var(--text-faint);
}

/* --- settings --- */
.settings-panel {
  width: min(420px, 90vw);
  background: var(--panel-2);
  border: 1px solid var(--line);
  padding: 20px 24px;
  margin-bottom: 22px;
}
.settings-title {
  font: 700 13px var(--mono);
  letter-spacing: 4px;
  color: var(--cyan);
  margin-bottom: 14px;
  text-align: left;
}
.set-row { display: flex; align-items: center; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid var(--line-soft); }
.set-row:last-child { border-bottom: none; }
.set-label { font: 600 11px var(--mono); letter-spacing: 2px; color: var(--text-dim); }
.set-row input[type="range"] { width: 170px; accent-color: var(--cyan); }
.set-row input[type="checkbox"] { width: 18px; height: 18px; accent-color: var(--cyan); cursor: pointer; }

/* --- upgrade selection --- */
.upg-title.relay { color: var(--cyan); }
.upg-cards {
  display: flex; gap: 18px; justify-content: center; flex-wrap: wrap;
  margin-bottom: 20px;
}
.upg-card {
  position: relative;
  width: 236px;
  min-height: 218px;
  background: var(--panel-2);
  border: 1px solid var(--line-soft);
  padding: 18px 16px 14px;
  cursor: pointer;
  text-align: left;
  display: flex; flex-direction: column;
  clip-path: polygon(14px 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%, 0 14px);
  transition: transform 0.12s, border-color 0.12s, box-shadow 0.12s;
}
.upg-card:hover { transform: translateY(-5px); }
.upg-card.rar0 { border-color: rgba(159, 184, 216, 0.4); }
.upg-card.rar0:hover { border-color: #9fb8d8; box-shadow: 0 0 24px rgba(159, 184, 216, 0.25); }
.upg-card.rar1 { border-color: rgba(74, 217, 255, 0.45); }
.upg-card.rar1:hover { border-color: var(--cyan); box-shadow: 0 0 28px rgba(74, 217, 255, 0.35); }
.upg-card.rar2 { border-color: rgba(199, 125, 255, 0.5); background: linear-gradient(180deg, rgba(34, 20, 56, 0.94), var(--panel-2)); }
.upg-card.rar2:hover { border-color: var(--violet); box-shadow: 0 0 34px rgba(199, 125, 255, 0.45); }
.upg-card.rar-relay { border-color: rgba(74, 217, 255, 0.5); }
.upg-card.rar-relay:hover { border-color: var(--cyan); box-shadow: 0 0 28px rgba(74, 217, 255, 0.4); }

.upg-glyph {
  font-size: 30px;
  line-height: 1;
  margin-bottom: 10px;
}
.upg-card.rar0 .upg-glyph { color: #9fb8d8; }
.upg-card.rar1 .upg-glyph { color: var(--cyan); }
.upg-card.rar2 .upg-glyph { color: var(--violet); }
.upg-card.rar-relay .upg-glyph { color: var(--cyan); }

.upg-name { font: 700 14px var(--mono); letter-spacing: 1px; color: #eaffff; margin-bottom: 6px; }
.upg-desc { font: 400 12px var(--font); line-height: 1.45; color: var(--text-dim); flex: 1; }
.upg-rar { margin-top: 12px; font: 700 9px var(--mono); letter-spacing: 3px; }
.upg-card.rar0 .upg-rar { color: #9fb8d8; }
.upg-card.rar1 .upg-rar { color: var(--cyan); }
.upg-card.rar2 .upg-rar { color: var(--violet); }
.upg-card.rar-relay .upg-rar { color: var(--cyan); }

.upg-key {
  position: absolute; top: 10px; right: 12px;
  width: 24px; height: 24px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--line-soft);
  font: 700 12px var(--mono);
  color: var(--text-dim);
  background: rgba(6, 12, 22, 0.8);
}
.upg-hint { font: 600 10px var(--mono); letter-spacing: 2px; color: var(--text-faint); }

/* --- end screens --- */
.end-stats {
  width: min(400px, 90vw);
  background: var(--panel-2);
  border: 1px solid var(--line-soft);
  padding: 18px 22px;
  margin-bottom: 16px;
  text-align: left;
}
.es-row { font: 600 12px var(--mono); letter-spacing: 1px; color: var(--text-dim); padding: 5px 0; }
.es-row b { color: #eaffff; font-weight: 700; }
.es-div { height: 1px; background: var(--line-soft); margin: 10px 0; }
.over-hint { margin: 4px 0 22px; font: 600 11px var(--mono); letter-spacing: 2px; color: var(--text-faint); }
.win-hint { color: rgba(74, 255, 192, 0.5); }
.win-screen .end-stats { border-color: rgba(74, 255, 192, 0.3); }
.over-screen .end-stats { border-color: rgba(255, 84, 112, 0.3); }

/* ============================================================
   KEYFRAMES
   ============================================================ */
@keyframes pulse { from { opacity: 1; } to { opacity: 0.55; } }
@keyframes pipPulse {
  0%, 100% { box-shadow: 0 0 6px rgba(74, 217, 255, 0.4); }
  50% { box-shadow: 0 0 16px rgba(74, 217, 255, 0.9); }
}

/* small screens: shrink minimap, hide seed */
@media (max-width: 900px) {
  .minimap { width: 110px; height: 110px; }
  .seed, .fps { display: none; }
  .sb-vitals { width: 210px; }
}