/* ── Design tokens: desert war / tactical dark ── */
:root {
  --bg: #0a0a0c;
  --bg-2: #121216;
  --panel: rgba(255,255,255,.045);
  --panel-solid: #14141a;
  --border: rgba(255,255,255,.09);
  --border-strong: rgba(255,255,255,.18);
  --text: #f4f1ea;
  --muted: #9a978f;
  --accent: #e0b64a;        /* brass / sand gold */
  --accent-2: #ffd77a;
  --red: #d92b2b;           /* action red */
  --red-2: #ff5a4d;
  --sand: #c8a97e;
  --green: #4ade80;
  --cyan: #4fd1e0;
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 20px;
  --shadow: 0 6px 30px rgba(0,0,0,.55);
  --shadow-lg: 0 18px 60px rgba(0,0,0,.65);
  --font-ar: 'Cairo', system-ui, sans-serif;
  --font-tac: 'Orbitron', 'Cairo', sans-serif;
  color-scheme: dark;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  min-height: 100dvh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-ar);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
.glow {
  position: fixed; inset: -30% -20% auto -20%; height: 68vh; pointer-events: none; z-index: 0;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(217,43,43,.20), transparent 58%),
    radial-gradient(ellipse at 82% 8%, rgba(224,182,74,.16), transparent 55%);
}
svg.lucide { width: 1em; height: 1em; stroke-width: 1.9; display: block; }
[hidden] { display: none !important; }

/* ── Topbar ── */
.topbar {
  position: sticky; top: 0; z-index: 30;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: .7rem 1.25rem;
  background: rgba(10,10,12,.82);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: .7rem; min-width: 0; }
.brand-mark {
  width: 40px; height: 40px; flex: none; border-radius: 12px;
  display: grid; place-items: center; font-size: 21px; color: #120d02;
  background: linear-gradient(140deg, var(--accent-2), var(--accent));
  box-shadow: 0 6px 22px rgba(224,182,74,.3);
}
.brand-text h1 { font-size: 1.05rem; font-weight: 800; letter-spacing: -.01em; line-height: 1.2; }
.brand-text p { font-size: .7rem; color: var(--muted); letter-spacing: .04em; }
.hud { display: flex; gap: .5rem; flex-wrap: wrap; }
.hud-item {
  display: flex; align-items: center; gap: .45rem;
  padding: .4rem .7rem; border-radius: 10px;
  background: var(--panel); border: 1px solid var(--border);
  font-size: .88rem;
}
.hud-item svg.lucide { font-size: 15px; color: var(--accent); }
.hud-item:nth-child(2) svg.lucide { color: var(--red-2); }
.hud-label { color: var(--muted); font-size: .7rem; }
.hud-item b { font-family: var(--font-tac); font-size: .92rem; font-weight: 800; min-width: 2ch; text-align: center; }

/* ── Layout ── */
.stage {
  display: grid; grid-template-columns: minmax(0,1fr) 320px;
  gap: 1rem; padding: 1rem; max-width: 1520px; margin: 0 auto;
  position: relative; z-index: 1; align-items: start;
}
.board-wrap { display: flex; flex-direction: column; gap: .75rem; min-width: 0; }
.board {
  position: relative; width: 100%; aspect-ratio: 960 / 600;
  border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--border-strong);
  background: #0d0c09;
  box-shadow: var(--shadow-lg), inset 0 0 90px rgba(0,0,0,.7);
}
#game { display: block; width: 100%; height: 100%; cursor: crosshair; touch-action: manipulation; }
.overlay-msg {
  position: absolute; inset: 0; display: grid; place-items: center;
  pointer-events: none; z-index: 4;
}
.overlay-msg span {
  font-family: var(--font-tac); font-weight: 900; font-size: clamp(1.1rem,3.4vw,2.1rem);
  letter-spacing: .12em; color: var(--accent-2);
  text-shadow: 0 0 26px rgba(224,182,74,.55), 0 2px 0 #000;
  padding: .5rem 1.6rem; border-block: 1px solid rgba(224,182,74,.45);
  background: rgba(8,8,10,.55); backdrop-filter: blur(3px);
  animation: popIn .5s cubic-bezier(.2,1.5,.4,1) both;
}
@keyframes popIn { from { opacity:0; transform: scale(.85) } to { opacity:1; transform:none } }

/* ── Under bar ── */
.underbar { display: flex; flex-direction: column; gap: .45rem; }
.wave-meter { height: 7px; border-radius: 99px; background: rgba(255,255,255,.07); overflow: hidden; }
.wave-fill {
  height: 100%; width: 0%; border-radius: 99px;
  background: linear-gradient(90deg, var(--red), var(--accent-2));
  transition: width .25s ease;
}
.underbar-row { display: flex; justify-content: space-between; gap: 1rem; font-size: .78rem; }
.muted { color: var(--muted); }
#fps-info { font-family: var(--font-tac); letter-spacing: .05em; }

/* ── Side panel ── */
.panel {
  display: flex; flex-direction: column; gap: .75rem;
  background: linear-gradient(180deg, rgba(20,20,26,.92), rgba(14,14,18,.92));
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: .9rem; backdrop-filter: blur(12px); box-shadow: var(--shadow);
  max-height: calc(100dvh - 90px); overflow-y: auto;
}
.panel-block { display: flex; flex-direction: column; gap: .55rem; }
.panel-title {
  display: flex; align-items: center; gap: .45rem;
  font-size: .8rem; font-weight: 800; color: var(--muted);
  text-transform: uppercase; letter-spacing: .1em;
}
.panel-title svg.lucide { font-size: 15px; color: var(--accent); }

/* ── Shop cards ── */
.shop { display: grid; grid-template-columns: 1fr 1fr; gap: .55rem; }
.unit-card {
  display: flex; flex-direction: column; gap: .3rem; text-align: right;
  padding: .6rem; cursor: pointer; font-family: var(--font-ar);
  background: rgba(255,255,255,.045); color: var(--text);
  border: 1px solid var(--border); border-radius: var(--radius);
  transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease, background .16s ease;
}
.unit-card:hover:not(:disabled) { transform: translateY(-2px); border-color: var(--border-strong); background: rgba(255,255,255,.08); }
.unit-card.selected { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent), 0 10px 30px rgba(224,182,74,.22); }
.unit-card:disabled { opacity: .42; cursor: not-allowed; }
.unit-top { display: flex; align-items: center; gap: .4rem; }
.unit-ico {
  width: 30px; height: 30px; flex: none; border-radius: 9px; display: grid; place-items: center;
  font-size: 16px; background: rgba(224,182,74,.13); color: var(--accent-2);
}
.unit-name { font-size: .82rem; font-weight: 700; line-height: 1.1; }
.unit-cost { display: flex; align-items: center; gap: .25rem; font-family: var(--font-tac); font-size: .78rem; color: var(--accent); }
.unit-desc { font-size: .66rem; color: var(--muted); line-height: 1.35; }

/* ── Abilities ── */
.abilities { display: grid; grid-template-columns: repeat(3, 1fr); gap: .5rem; }
.abi {
  position: relative; display: flex; flex-direction: column; align-items: center; gap: .2rem;
  padding: .55rem .3rem; cursor: pointer; font-family: var(--font-ar);
  background: rgba(255,255,255,.045); color: var(--text);
  border: 1px solid var(--border); border-radius: var(--radius);
  transition: transform .16s ease, box-shadow .16s ease, border-color .16s;
  overflow: hidden;
}
.abi svg.lucide { font-size: 19px; color: var(--cyan); }
.abi span { font-size: .64rem; color: var(--muted); font-weight: 600; }
.abi:hover:not(:disabled) { transform: translateY(-2px); border-color: var(--border-strong); }
.abi.selected { border-color: var(--cyan); box-shadow: 0 0 0 1px var(--cyan); }
.abi:disabled { opacity: .42; cursor: not-allowed; }
.abi .cd {
  position: absolute; inset: auto 0 0 0; background: rgba(0,0,0,.62);
  transition: height .2s linear; pointer-events: none;
}
.abi .cd-text {
  position: absolute; inset: 0; display: grid; place-items: center;
  font-family: var(--font-tac); font-size: .78rem; font-weight: 800; color: #fff; z-index: 2;
}

/* ── Inspect ── */
.inspect { display: flex; flex-direction: column; gap: .35rem; font-size: .78rem; }
.inspect-row { display: flex; justify-content: space-between; gap: .5rem; border-bottom: 1px dashed rgba(255,255,255,.08); padding-bottom: .25rem; }
.inspect-row span { color: var(--muted); }
.inspect-row b { font-family: var(--font-tac); font-size: .78rem; }
.inspect-actions { display: grid; grid-template-columns: 1fr 1fr; gap: .5rem; margin-top: .6rem; }
.rank { display: flex; gap: 3px; }
.rank i { width: 14px; height: 5px; border-radius: 2px; background: rgba(255,255,255,.16); }
.rank i.on { background: var(--accent); box-shadow: 0 0 8px rgba(224,182,74,.6); }

/* ── Buttons / controls ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .4rem;
  padding: .62rem 1.2rem; border-radius: 999px; border: none; cursor: pointer;
  font-family: var(--font-ar); font-size: .88rem; font-weight: 700; color: var(--text);
  transition: transform .15s ease, box-shadow .15s ease, opacity .15s ease;
}
.btn-sm { padding: .45rem .7rem; font-size: .76rem; border-radius: 10px; }
.btn:disabled { opacity: .42; cursor: not-allowed; }
.btn-primary { background: linear-gradient(135deg, var(--accent-2), var(--accent)); color: #150f02; box-shadow: 0 8px 26px rgba(224,182,74,.28); }
.btn-primary:hover:not(:disabled) { transform: translateY(-2px); box-shadow: 0 12px 34px rgba(224,182,74,.4); }
.btn-danger { background: rgba(217,43,43,.16); color: var(--red-2); border: 1px solid rgba(217,43,43,.42); }
.btn-danger:hover:not(:disabled) { background: rgba(217,43,43,.28); }
.controls { display: grid; grid-template-columns: repeat(4, 1fr); gap: .45rem; }
.ctl {
  display: flex; align-items: center; justify-content: center; gap: .35rem;
  height: 40px; border-radius: 10px; cursor: pointer; font-family: var(--font-tac);
  font-size: .85rem; font-weight: 700; color: var(--text);
  background: rgba(255,255,255,.05); border: 1px solid var(--border);
  transition: transform .15s ease, background .2s, border-color .2s;
}
.ctl svg.lucide { font-size: 17px; }
.ctl:hover { transform: translateY(-2px); background: rgba(255,255,255,.1); border-color: var(--border-strong); }
.ctl-wide { grid-column: 1 / -1; background: rgba(217,43,43,.14); border-color: rgba(217,43,43,.4); color: #ffc9c3; }
.ctl-wide:hover { background: rgba(217,43,43,.26); }
.ctl.muted-on { color: var(--muted); }
.hint { font-size: .7rem; color: var(--muted); line-height: 1.7; }
.hint b { color: var(--accent); font-family: var(--font-tac); font-size: .68rem; }

/* ── Start / end screen ── */
.screen {
  position: absolute; inset: 0; z-index: 6; display: grid; place-items: center; padding: 1rem;
  background: radial-gradient(ellipse at 50% 40%, rgba(24,16,10,.86), rgba(6,6,8,.95));
  backdrop-filter: blur(6px); animation: fadeUp .35s ease;
}
.screen-card {
  max-width: 430px; width: 100%; text-align: center;
  background: rgba(18,18,24,.9); border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg); padding: 1.6rem 1.4rem;
  box-shadow: var(--shadow-lg);
}
.screen-icon {
  width: 58px; height: 58px; margin: 0 auto .8rem; border-radius: 18px;
  display: grid; place-items: center; font-size: 30px; color: #150f02;
  background: linear-gradient(140deg, var(--accent-2), var(--accent));
  box-shadow: 0 10px 34px rgba(224,182,74,.35);
}
.screen-card h2 { font-size: 1.5rem; font-weight: 800; margin-bottom: .5rem; }
.screen-card p { color: var(--muted); font-size: .86rem; line-height: 1.85; margin-bottom: 1rem; }
.screen-stats { display: flex; flex-wrap: wrap; gap: .4rem; justify-content: center; margin-bottom: 1.1rem; }
.chip {
  display: inline-flex; align-items: center; gap: .3rem; font-size: .74rem;
  padding: .28rem .6rem; border-radius: 999px;
  background: rgba(224,182,74,.12); color: var(--accent-2); border: 1px solid rgba(224,182,74,.25);
}
.kbd { font-family: var(--font-tac); font-size: .72rem; background: rgba(255,255,255,.08); padding: .1rem .4rem; border-radius: 5px; border: 1px solid var(--border); }

/* ── Toasts ── */
.toast-wrap { position: fixed; bottom: 1.2rem; left: 1.2rem; z-index: 100; display: flex; flex-direction: column; gap: .5rem; pointer-events: none; }
.toast {
  padding: .55rem 1rem; border-radius: 10px; font-size: .82rem; font-weight: 600;
  background: rgba(20,20,26,.95); border: 1px solid var(--border-strong);
  box-shadow: var(--shadow); animation: fadeUp .3s ease; max-width: 280px;
}
.toast.gold { border-color: rgba(224,182,74,.5); color: var(--accent-2); }
.toast.bad { border-color: rgba(217,43,43,.55); color: var(--red-2); }
.toast.good { border-color: rgba(74,222,128,.45); color: var(--green); }
@keyframes fadeUp { from { opacity: 0; transform: translateY(14px) } to { opacity: 1; transform: none } }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .stage { grid-template-columns: 1fr; }
  .panel { max-height: none; }
  .shop { grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); }
}
@media (max-width: 640px) {
  .topbar { flex-direction: column; align-items: stretch; gap: .6rem; padding: .7rem .8rem; }
  .hud { justify-content: space-between; }
  .hud-item { flex: 1; justify-content: center; padding: .35rem .4rem; }
  .hud-label { display: none; }
  .stage { padding: .6rem; gap: .6rem; }
  .board { border-radius: var(--radius); }
  .abilities { grid-template-columns: repeat(3, 1fr); }
  .toast-wrap { left: .6rem; right: .6rem; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}