/* ════════════════════════════════════════════════════════════
   SPACEFRONT — cassette-futurism mission control
   amber phosphor on void black
   ════════════════════════════════════════════════════════════ */

:root {
  --amber:       #ffb259;
  --amber-hi:    #ffd9a3;
  --amber-dim:   #b0763a;
  --amber-glow:  rgba(255, 178, 89, 0.45);
  --cyan:        #7de8ff;
  --green:       #8aff9e;
  --red:         #ff5e5e;
  --ink:         #05070d;
  --panel:       rgba(8, 11, 18, 0.82);
  --panel-edge:  rgba(255, 178, 89, 0.38);
  --panel-edge2: rgba(255, 178, 89, 0.14);
  --text:        #f3e9d8;
  --text-dim:    #9a8d77;
  --font-disp:   'Michroma', 'Avenir Next', sans-serif;
  --font-mono:   'IBM Plex Mono', 'Menlo', monospace;
}

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

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

#scene { position: fixed; inset: 0; width: 100%; height: 100%; display: block; }

.hidden { display: none !important; }

button {
  font-family: var(--font-mono);
  background: none;
  border: 1px solid var(--panel-edge);
  color: var(--amber);
  cursor: pointer;
  letter-spacing: 0.08em;
}
button:hover { background: rgba(255, 178, 89, 0.12); color: var(--amber-hi); }

/* ── atmosphere overlays ─────────────────────────────────── */

#vignette {
  position: fixed; inset: 0; pointer-events: none; z-index: 40;
  background: radial-gradient(ellipse at center, transparent 55%, rgba(2, 3, 7, 0.55) 100%);
}
#scanlines {
  position: fixed; inset: 0; pointer-events: none; z-index: 41;
  background: repeating-linear-gradient(0deg,
    rgba(255, 200, 130, 0.022) 0px, rgba(255, 200, 130, 0.022) 1px,
    transparent 1px, transparent 3px);
  mix-blend-mode: screen;
}

/* ── panel chrome (shared) ───────────────────────────────── */

.chrome {
  background: var(--panel);
  border: 1px solid var(--panel-edge2);
  box-shadow: 0 0 0 1px rgba(0,0,0,0.6), 0 8px 30px rgba(0,0,0,0.45);
  backdrop-filter: blur(6px);
  position: relative;
}
.chrome::before {
  content: ""; position: absolute; left: 0; top: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--panel-edge), transparent);
}

/* ── top bar ─────────────────────────────────────────────── */

#topbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 20;
  display: flex; align-items: stretch; gap: 14px;
  padding: 10px 16px 0;
  pointer-events: none;
}
#topbar > * { pointer-events: auto; }

#brand {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 16px 8px 12px;
  background: var(--panel);
  border: 1px solid var(--panel-edge2);
  border-top: 2px solid var(--amber);
  clip-path: polygon(0 0, 100% 0, calc(100% - 14px) 100%, 0 100%);
  backdrop-filter: blur(6px);
}
.brand-mark {
  font-size: 22px; color: var(--amber);
  text-shadow: 0 0 12px var(--amber-glow);
  animation: pulse-mark 4s ease-in-out infinite;
}
@keyframes pulse-mark { 50% { text-shadow: 0 0 22px var(--amber-glow); opacity: .8; } }
.brand-text {
  font-family: var(--font-disp); font-size: 15px; letter-spacing: 0.22em;
  color: var(--amber-hi); text-shadow: 0 0 14px var(--amber-glow);
  line-height: 1.1; padding-right: 14px;
}
.brand-text span {
  display: block; font-family: var(--font-mono); font-size: 8.5px;
  letter-spacing: 0.3em; color: var(--text-dim); margin-top: 3px;
}

#resources {
  flex: 1;
  display: flex; align-items: center; justify-content: center; gap: 4px;
  background: var(--panel);
  border: 1px solid var(--panel-edge2);
  backdrop-filter: blur(6px);
  padding: 4px 10px;
  overflow: hidden;
}
.res {
  display: flex; flex-direction: column; align-items: center;
  min-width: 76px; padding: 2px 8px;
  border-left: 1px solid var(--panel-edge2);
}
.res:first-child { border-left: none; }
.res .res-label {
  font-size: 8.5px; letter-spacing: 0.28em; color: var(--text-dim);
  display: flex; align-items: center; gap: 4px;
}
.res .res-label svg { width: 10px; height: 10px; stroke: var(--amber-dim); fill: none; stroke-width: 1.6; }
.res .res-val {
  font-size: 15px; font-weight: 600; color: var(--text);
  font-variant-numeric: tabular-nums; line-height: 1.25;
  text-shadow: 0 0 10px rgba(255,178,89,0.18);
}
.res .res-rate { font-size: 8.5px; font-variant-numeric: tabular-nums; height: 11px; }
.res .res-rate.pos { color: var(--green); }
.res .res-rate.neg { color: var(--red); }
.res .res-rate.zero { color: var(--text-dim); }
.res.warn .res-val { color: var(--red); animation: blink-warn 1s steps(2) infinite; }
@keyframes blink-warn { 50% { opacity: 0.35; } }

#clockbox {
  display: flex; align-items: center; gap: 10px;
  background: var(--panel); border: 1px solid var(--panel-edge2);
  backdrop-filter: blur(6px);
  padding: 6px 12px;
  clip-path: polygon(14px 0, 100% 0, 100% 100%, 0 100%);
  padding-left: 22px;
}
#soldial { width: 44px; height: 44px; }
#soldial svg { width: 100%; height: 100%; }
.dial-ring { fill: none; stroke: var(--panel-edge2); stroke-width: 2; }
.dial-arc  { fill: none; stroke: var(--amber); stroke-width: 2.5; stroke-linecap: round; opacity: .9; }
#dial-needle line { stroke: var(--amber-hi); stroke-width: 1.6; }
#dial-needle circle { fill: var(--amber-hi); }
#dial-needle { transform-origin: 22px 22px; }
#solinfo { line-height: 1.3; }
#sol-num { font-family: var(--font-disp); font-size: 13px; letter-spacing: .14em; color: var(--amber-hi); }
#sol-phase { font-size: 9px; letter-spacing: .3em; color: var(--text-dim); }

#speedctl, #sysctl { display: flex; gap: 4px; }
#speedctl button, #sysctl button, #sysctl a {
  font-size: 9px; padding: 6px 8px; min-width: 30px;
}
#sysctl a {
  display: inline-flex; align-items: center;
  color: var(--amber);
  border: 1px solid var(--panel-edge);
  letter-spacing: 0.08em;
  text-decoration: none;
}
#sysctl a:hover { background: rgba(255, 178, 89, 0.12); color: var(--amber-hi); }
#speedctl button.active {
  background: var(--amber); color: var(--ink); border-color: var(--amber);
  text-shadow: none; box-shadow: 0 0 14px var(--amber-glow);
}
#sysctl button.off { color: var(--text-dim); border-color: var(--panel-edge2); }

/* ── build palette ───────────────────────────────────────── */

#palette {
  position: fixed; left: 16px; top: 86px; bottom: 90px; z-index: 18;
  width: 228px;
  display: flex; flex-direction: column;
  background: var(--panel);
  border: 1px solid var(--panel-edge2);
  border-left: 2px solid var(--amber-dim);
  backdrop-filter: blur(6px);
}
#palette-head {
  font-family: var(--font-disp); font-size: 10px; letter-spacing: 0.34em;
  color: var(--amber); padding: 10px 14px 8px;
  border-bottom: 1px solid var(--panel-edge2);
  text-shadow: 0 0 10px var(--amber-glow);
}
#palette-body { flex: 1; overflow-y: auto; padding: 4px 0 8px; scrollbar-width: thin; scrollbar-color: var(--amber-dim) transparent; }
#palette-body::-webkit-scrollbar { width: 4px; }
#palette-body::-webkit-scrollbar-thumb { background: var(--amber-dim); }

.pal-cat {
  font-size: 8.5px; letter-spacing: 0.3em; color: var(--text-dim);
  padding: 10px 14px 4px;
  display: flex; align-items: center; gap: 8px;
}
.pal-cat::after { content: ""; flex: 1; height: 1px; background: var(--panel-edge2); }

.pal-item {
  display: flex; align-items: center; gap: 10px;
  padding: 6px 12px; margin: 1px 6px;
  cursor: pointer; border: 1px solid transparent;
  transition: background .12s, border-color .12s;
}
.pal-item:hover { background: rgba(255,178,89,0.08); border-color: var(--panel-edge2); }
.pal-item.active {
  background: rgba(255,178,89,0.16); border-color: var(--amber);
  box-shadow: inset 2px 0 0 var(--amber);
}
.pal-item.unaffordable .pi-cost { color: var(--red); }
.pal-item.locked { opacity: 0.38; cursor: default; }
.pal-item.locked:hover { background: none; border-color: transparent; }

.pi-icon { width: 26px; height: 26px; flex: none; }
.pi-icon svg { width: 100%; height: 100%; stroke: var(--amber); fill: none; stroke-width: 1.3; }
.pal-item.locked .pi-icon svg { stroke: var(--text-dim); }
.pi-text { flex: 1; min-width: 0; }
.pi-name { font-size: 10.5px; letter-spacing: .08em; color: var(--text); white-space: nowrap; }
.pi-cost { font-size: 8.5px; color: var(--text-dim); letter-spacing: .06em; }
.pi-lock { font-size: 8px; color: var(--cyan); letter-spacing: .1em; }

#btn-bulldoze {
  margin: 8px; padding: 8px;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  font-size: 9.5px; color: var(--red); border-color: rgba(255,94,94,0.4);
}
#btn-bulldoze svg { width: 16px; height: 16px; stroke: currentColor; stroke-width: 1.5; }
#btn-bulldoze:hover { background: rgba(255,94,94,0.12); }
#btn-bulldoze.active { background: var(--red); color: var(--ink); border-color: var(--red); }
.kbd {
  font-size: 8px; border: 1px solid currentColor; padding: 1px 4px; opacity: .7;
}

/* ── objectives ──────────────────────────────────────────── */

#objectives {
  position: fixed; right: 16px; top: 86px; z-index: 18;
  width: 250px;
  background: var(--panel);
  border: 1px solid var(--panel-edge2);
  border-right: 2px solid var(--cyan);
  backdrop-filter: blur(6px);
  padding: 10px 14px 12px;
}
.obj-head {
  font-family: var(--font-disp); font-size: 9px; letter-spacing: .34em;
  color: var(--cyan); margin-bottom: 8px;
}
.obj-item { font-size: 10.5px; line-height: 1.5; color: var(--text); display: flex; gap: 8px; }
.obj-item::before { content: "▸"; color: var(--cyan); }
.obj-item.done { color: var(--text-dim); text-decoration: line-through; }
.obj-item.done::before { content: "✓"; color: var(--green); }
.obj-progress { font-size: 9px; color: var(--text-dim); margin-top: 4px; letter-spacing: .1em; }

/* ── power bar ───────────────────────────────────────────── */

#powerbar {
  position: fixed; left: 50%; transform: translateX(-50%);
  bottom: 16px; z-index: 18;
  display: flex; align-items: center; gap: 10px;
  background: var(--panel); border: 1px solid var(--panel-edge2);
  backdrop-filter: blur(6px);
  padding: 8px 16px;
  clip-path: polygon(12px 0, calc(100% - 12px) 0, 100% 100%, 0 100%);
}
.pw-label { font-size: 8.5px; letter-spacing: .26em; color: var(--text-dim); }
.pw-track {
  width: 150px; height: 10px; position: relative;
  border: 1px solid var(--panel-edge); background: rgba(0,0,0,0.5);
}
.pw-track.batt { width: 80px; }
#pw-fill, #batt-fill {
  position: absolute; left: 0; top: 0; bottom: 0; width: 50%;
  background: linear-gradient(90deg, var(--amber-dim), var(--amber));
  box-shadow: 0 0 10px var(--amber-glow);
  transition: width .3s;
}
#pw-fill.deficit { background: linear-gradient(90deg, #a33, var(--red)); box-shadow: 0 0 10px rgba(255,94,94,.5); }
#batt-fill { background: linear-gradient(90deg, #2a7d8c, var(--cyan)); box-shadow: 0 0 8px rgba(125,232,255,.4); }
#pw-marker { position: absolute; top: -3px; bottom: -3px; width: 2px; background: var(--text); opacity: .8; }
#pw-text, #batt-text { font-size: 10px; font-variant-numeric: tabular-nums; color: var(--text); min-width: 70px; }
#batt-text { min-width: 34px; }

/* ── info panel ──────────────────────────────────────────── */

#infopanel {
  position: fixed; left: 50%; transform: translateX(-50%);
  bottom: 58px; z-index: 19;
  width: 320px;
  background: var(--panel); border: 1px solid var(--panel-edge);
  backdrop-filter: blur(8px);
  padding: 12px 16px;
}
.info-head { display: flex; justify-content: space-between; align-items: center; }
#info-name {
  font-family: var(--font-disp); font-size: 12px; letter-spacing: .18em;
  color: var(--amber-hi); text-shadow: 0 0 10px var(--amber-glow);
}
#info-close { border: none; font-size: 12px; padding: 2px 6px; }
#info-status { font-size: 9px; letter-spacing: .3em; margin: 4px 0 8px; color: var(--green); }
#info-status.bad { color: var(--red); animation: blink-warn 1s steps(2) infinite; }
#info-rows { font-size: 10.5px; line-height: 1.7; color: var(--text); }
#info-rows .ir { display: flex; justify-content: space-between; border-bottom: 1px dotted var(--panel-edge2); }
#info-rows .ir b { color: var(--amber); font-weight: 500; }
#info-demolish {
  width: 100%; margin-top: 10px; padding: 7px;
  font-size: 9px; color: var(--red); border-color: rgba(255,94,94,0.4);
}
#info-demolish:hover { background: rgba(255,94,94,0.15); }

/* ── tooltip / hints ─────────────────────────────────────── */

#tiletip {
  position: fixed; z-index: 30; pointer-events: none;
  background: var(--panel); border: 1px solid var(--panel-edge);
  padding: 7px 11px; font-size: 10px; line-height: 1.55;
  max-width: 240px;
  backdrop-filter: blur(4px);
}
#tiletip .tt-name { color: var(--amber-hi); letter-spacing: .12em; font-size: 10.5px; }
#tiletip .tt-dim { color: var(--text-dim); }
#tiletip .tt-bad { color: var(--red); }
#tiletip .tt-good { color: var(--green); }
#tiletip .tt-cyan { color: var(--cyan); }

#placehint {
  position: fixed; left: 50%; transform: translateX(-50%); bottom: 110px; z-index: 18;
  font-size: 10px; letter-spacing: .2em; color: var(--amber);
  background: var(--panel); border: 1px solid var(--panel-edge2);
  padding: 6px 18px; pointer-events: none;
  text-shadow: 0 0 8px var(--amber-glow);
}

/* ── toasts ──────────────────────────────────────────────── */

#toasts {
  position: fixed; right: 16px; bottom: 16px; z-index: 25;
  display: flex; flex-direction: column-reverse; gap: 6px;
  pointer-events: none; max-width: 320px;
}
.toast {
  background: var(--panel); border: 1px solid var(--panel-edge2);
  border-left: 3px solid var(--amber);
  padding: 8px 12px; font-size: 10.5px; line-height: 1.45;
  backdrop-filter: blur(4px);
  animation: toast-in .25s cubic-bezier(.2,.9,.3,1.2);
}
.toast.good { border-left-color: var(--green); }
.toast.bad  { border-left-color: var(--red); }
.toast.sci  { border-left-color: var(--cyan); }
.toast.fade { animation: toast-out .5s forwards; }
@keyframes toast-in  { from { transform: translateX(40px); opacity: 0; } }
@keyframes toast-out { to { transform: translateX(20px); opacity: 0; } }

/* ── banner / event flash ────────────────────────────────── */

#banner {
  position: fixed; left: 50%; top: 18%; transform: translateX(-50%); z-index: 35;
  text-align: center; pointer-events: none;
  animation: banner-in .5s cubic-bezier(.2,.9,.3,1.1);
}
#banner-title {
  font-family: var(--font-disp); font-size: 34px; letter-spacing: .3em;
  color: var(--amber-hi); text-shadow: 0 0 30px var(--amber-glow), 0 0 60px var(--amber-glow);
  border-top: 1px solid var(--panel-edge); border-bottom: 1px solid var(--panel-edge);
  padding: 14px 40px;
  background: rgba(5,7,13,0.55);
  backdrop-filter: blur(3px);
}
#banner-sub { font-size: 11px; letter-spacing: .4em; color: var(--text-dim); margin-top: 10px; }
@keyframes banner-in { from { transform: translateX(-50%) translateY(-16px); opacity: 0; letter-spacing: .5em; } }
#banner.fade { animation: banner-out 1s forwards; }
@keyframes banner-out { to { opacity: 0; } }

#eventflash {
  position: fixed; inset: 0; z-index: 34; pointer-events: none;
  background: radial-gradient(ellipse at center, transparent 40%, rgba(255,80,60,0.25) 100%);
  opacity: 0; transition: opacity .3s;
}
#eventflash.on { opacity: 1; animation: flash-pulse 1.2s ease-in-out infinite; }
@keyframes flash-pulse { 50% { opacity: .35; } }

/* ── overlays (start / help) ─────────────────────────────── */

.overlay {
  position: fixed; inset: 0; z-index: 50;
  display: flex; align-items: center; justify-content: center;
  background: radial-gradient(ellipse at 50% 30%, #0b101c 0%, #05070d 70%);
}
.stars-bg {
  position: absolute; inset: 0;
  background-image:
    radial-gradient(1px 1px at 12% 24%, #fff8, transparent 50%),
    radial-gradient(1px 1px at 34% 67%, #fff6, transparent 50%),
    radial-gradient(1.5px 1.5px at 56% 14%, #ffd9a3aa, transparent 50%),
    radial-gradient(1px 1px at 71% 44%, #fff7, transparent 50%),
    radial-gradient(1px 1px at 88% 78%, #fff5, transparent 50%),
    radial-gradient(1.5px 1.5px at 22% 85%, #7de8ff88, transparent 50%),
    radial-gradient(1px 1px at 45% 38%, #fff6, transparent 50%),
    radial-gradient(1px 1px at 64% 91%, #fff8, transparent 50%),
    radial-gradient(1.5px 1.5px at 92% 12%, #fff9, transparent 50%),
    radial-gradient(1px 1px at 5% 55%, #ffd9a388, transparent 50%);
  animation: stars-drift 120s linear infinite;
}
@keyframes stars-drift { to { transform: translateY(-60px); } }

.start-inner {
  position: relative; text-align: center; max-width: 660px; padding: 30px;
  animation: start-rise 1.2s cubic-bezier(.2,.8,.3,1);
}
@keyframes start-rise { from { opacity: 0; transform: translateY(26px); } }
.start-pre {
  font-size: 10px; letter-spacing: .5em; color: var(--cyan);
  margin-bottom: 22px; animation: blink-warn 2.4s steps(2) infinite;
}
#title {
  font-family: var(--font-disp);
  font-size: clamp(42px, 8.5vw, 84px);
  letter-spacing: .18em; font-weight: 400;
  color: var(--amber-hi);
  text-shadow:
    0 0 18px var(--amber-glow),
    0 0 70px rgba(255,178,89,0.3),
    0 0 140px rgba(255,178,89,0.2);
  margin-left: .18em; /* optical centering vs letterspacing */
}
.start-rule { display: flex; align-items: center; gap: 14px; margin: 14px 0 26px; }
.start-rule span { flex: 1; height: 1px; background: linear-gradient(90deg, transparent, var(--amber-dim)); }
.start-rule span:last-child { background: linear-gradient(90deg, var(--amber-dim), transparent); }
.start-rule em {
  font-style: normal; font-size: 10px; letter-spacing: .44em; color: var(--text-dim); white-space: nowrap;
}
.start-lore {
  font-size: 12.5px; line-height: 1.85; color: var(--text);
  max-width: 520px; margin: 0 auto 34px;
}
.start-lore b, .start-lore i { color: var(--amber); font-style: normal; font-weight: 500; }
.start-btns { display: flex; gap: 14px; justify-content: center; }
.big-btn {
  font-family: var(--font-disp); font-size: 13px; letter-spacing: .24em;
  padding: 15px 36px;
  border: 1px solid var(--amber); color: var(--amber);
  background: rgba(255,178,89,0.06);
  text-shadow: 0 0 10px var(--amber-glow);
  transition: all .18s;
  clip-path: polygon(10px 0, 100% 0, calc(100% - 10px) 100%, 0 100%);
}
.big-btn:hover {
  background: var(--amber); color: var(--ink); text-shadow: none;
  box-shadow: 0 0 34px var(--amber-glow);
}
.big-btn.ghost { border-color: var(--panel-edge); color: var(--text-dim); }
.big-btn.ghost:hover { background: rgba(255,178,89,0.12); color: var(--amber-hi); box-shadow: none; }
.start-foot {
  margin-top: 44px; font-size: 9px; letter-spacing: .3em; color: var(--text-dim);
}
.game-links {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 12px 22px; margin-top: 16px;
  letter-spacing: .18em;
}
.game-links a { color: var(--amber); text-decoration: none; }
.game-links a:hover { color: var(--amber-hi); text-decoration: underline; }

/* help */
.help-card {
  background: var(--panel); border: 1px solid var(--panel-edge);
  max-width: 720px; padding: 30px 38px; backdrop-filter: blur(8px);
}
.help-card h2 {
  font-family: var(--font-disp); font-size: 16px; letter-spacing: .3em;
  color: var(--amber-hi); margin-bottom: 20px; text-shadow: 0 0 12px var(--amber-glow);
}
.help-cols { display: flex; gap: 40px; }
.help-cols > div { flex: 1; }
.help-cols h3 { font-size: 10px; letter-spacing: .3em; color: var(--cyan); margin-bottom: 12px; }
.help-cols table { border-collapse: collapse; }
.help-cols td { font-size: 10.5px; padding: 3px 14px 3px 0; color: var(--text); }
.help-cols td.kbd { color: var(--amber); border: none; opacity: 1; font-size: 10px; }
.help-cols p { font-size: 11px; line-height: 1.7; color: var(--text); margin-bottom: 10px; }
.help-cols p b { color: var(--amber); font-weight: 500; }
.help-card .big-btn { margin-top: 18px; font-size: 10px; padding: 11px 26px; }

/* responsive squeeze */
@media (max-width: 1100px) {
  .res { min-width: 62px; padding: 2px 4px; }
  #objectives { width: 200px; }
  #palette { width: 200px; }
}