/* Cheat Code Tracker — neon 8-bit CRT. Palette locked to season fiction:
   off-black purple CRT ground, cyan primary, magenta accent, lime confirm, amber warn.
   Dark-first: bare :root is the dark palette. Light overrides live in ONE place
   (the "light theme" block below); the media query + [data-theme] selectors both
   point at it so the "system" default and the explicit toggle stay in sync. */
:root {
  --bg: #0a0618;
  --bg-raise: #140d2b;
  --line: #4b3a8a; /* ≥3:1 on --bg for WCAG 1.4.11 — interactive borders depend on it */
  --cyan: #00f0ff;
  --magenta: #ff2ec8;
  --lime: #39ff6b;
  --amber: #ffb000;
  --ink: #d8d4f0;
  --ink-dim: #8f87b8;
  --well: #000;            /* input / gauge / toast wells */
  --chip-ink: #0a0618;     /* text on a filled cyan chip */
  --used-line: #2e5c3d;
  --used-bg: #0b1410;
  --glow: .55;             /* neon glow alpha — light theme turns it off */
  --scan: .18;             /* CRT scanline strength — lighter on paper */
  --px: "Press Start 2P", monospace;
  --term: "VT323", monospace;
  --ui: "Chakra Petch", system-ui, sans-serif;
}

/* Light palette: same fiction, daylight CRT. Neon hues drop to ink-safe
   versions that keep ≥4.5:1 on the paper ground. */
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #f1eefb;
    --bg-raise: #ffffff;
    --line: #9a8fd0;
    --cyan: #006e7e;
    --magenta: #b31187;
    --lime: #157a39;
    --amber: #8a5c00;
    --ink: #241d40;
    --ink-dim: #5c5384;
    --well: #ffffff;
    --chip-ink: #ffffff;
    --used-line: #79b98e;
    --used-bg: #e6f4ea;
    --glow: 0;
    --scan: .05;
  }
}
:root[data-theme="light"] {
  --bg: #f1eefb;
  --bg-raise: #ffffff;
  --line: #9a8fd0;
  --cyan: #006e7e;
  --magenta: #b31187;
  --lime: #157a39;
  --amber: #8a5c00;
  --ink: #241d40;
  --ink-dim: #5c5384;
  --well: #ffffff;
  --chip-ink: #ffffff;
  --used-line: #79b98e;
  --used-bg: #e6f4ea;
  --glow: 0;
  --scan: .05;
}

* { box-sizing: border-box; }
html { background: var(--bg); }
body {
  margin: 0 auto;
  max-width: 640px;
  padding: 0 16px 48px;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--ui);
  font-size: 1rem;
  line-height: 1.5;
}

/* CRT scanlines — purely decorative, very low contrast, static (no flicker) */
.crt {
  position: fixed; inset: 0; pointer-events: none; z-index: 10;
  background: repeating-linear-gradient(0deg, rgba(0,0,0,var(--scan)) 0 1px, transparent 1px 3px);
  mix-blend-mode: multiply;
}

/* ---------- header ---------- */
.panel-header { padding-top: 28px; }
.boot-line {
  font-family: var(--term);
  font-size: 1.25rem;
  color: var(--lime);
  margin: 0 0 18px;
  min-height: 1.3em;
}
.cursor { animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

.logo {
  font-family: var(--px);
  font-size: clamp(1.4rem, 6vw, 2.2rem);
  margin: 0;
  color: var(--cyan);
  text-shadow: 0 0 12px rgba(0, 240, 255, var(--glow)), 0 0 2px rgba(0, 240, 255, var(--glow));
  letter-spacing: .02em;
}
.logo-accent { color: var(--magenta); text-shadow: 0 0 12px rgba(255, 46, 200, var(--glow)); }
.tagline { color: var(--ink-dim); margin: 10px 0 0; font-size: .95rem; }
.tagline-sep { color: var(--magenta); }

.header-actions { display: flex; align-items: center; gap: 12px; margin-top: 16px; flex-wrap: wrap; }
.sync-status { font-size: .85rem; color: var(--ink-dim); }

/* ---------- buttons / chips ---------- */
.btn {
  font-family: var(--ui); font-weight: 600; font-size: .95rem;
  background: var(--bg-raise); color: var(--ink);
  border: 2px solid var(--line); border-radius: 0;
  padding: 10px 16px; min-height: 44px; cursor: pointer;
  box-shadow: 3px 3px 0 #000;
}
.btn:hover { border-color: var(--cyan); color: var(--cyan); }
.btn:active { transform: translate(2px, 2px); box-shadow: 1px 1px 0 #000; }
.btn-sync { border-color: var(--magenta); color: var(--magenta); }
.btn-sync:hover { color: var(--cyan); }
.btn-primary { border-color: var(--cyan); color: var(--cyan); width: 100%; margin-top: 10px; }

:focus-visible { outline: 3px solid var(--amber); outline-offset: 2px; }

/* ---------- progress ---------- */
.progress-block { margin-top: 36px; }
.section-label {
  font-family: var(--px); font-size: .7rem; letter-spacing: .08em;
  color: var(--ink-dim); text-transform: uppercase; margin: 0;
}
.progress-head { display: flex; justify-content: space-between; align-items: baseline; }
.progress-count { font-family: var(--term); font-size: 2.4rem; margin: 0; line-height: 1; }
.count-done { color: var(--lime); text-shadow: 0 0 10px rgba(57, 255, 107, var(--glow)); }
.count-sep, #count-total { color: var(--ink-dim); }

.xp-bar {
  display: grid; grid-auto-flow: column; grid-auto-columns: 1fr; gap: 4px;
  height: 22px; margin-top: 10px;
  border: 2px solid var(--line); padding: 3px; background: var(--well);
}
.xp-seg { background: var(--bg-raise); }
.xp-seg.is-full { background: var(--lime); box-shadow: 0 0 8px rgba(57, 255, 107, var(--glow)); }
.progress-hint { color: var(--ink-dim); font-size: .9rem; margin: 12px 0 0; }

/* ---------- filters ---------- */
.filters { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin: 28px 0 14px; flex-wrap: wrap; }
.chip-row { display: flex; gap: 8px; }
.chip {
  font-family: var(--ui); font-weight: 600; font-size: .9rem;
  background: none; color: var(--ink-dim);
  border: 2px solid var(--line); padding: 8px 14px; min-height: 44px; cursor: pointer;
}
.chip:hover { color: var(--ink); }
.chip.is-active { color: var(--chip-ink); background: var(--cyan); border-color: var(--cyan); font-weight: 700; }
.cat-label { display: inline-flex; align-items: center; gap: 8px; font-size: .85rem; color: var(--ink-dim); }
.cat-select {
  font-family: var(--ui); font-size: .95rem; min-height: 44px;
  background: var(--bg-raise); color: var(--ink);
  border: 2px solid var(--line); padding: 8px 32px 8px 8px;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M0 0h12L6 8z' fill='%2300f0ff'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 10px center;
}

.visually-hidden {
  position: absolute; width: 1px; height: 1px; margin: -1px;
  clip-path: inset(50%); overflow: hidden; white-space: nowrap;
}

/* ---------- code list ---------- */
.code-list { list-style: none; margin: 0; padding: 0; }
.code-row {
  border: 2px solid var(--line); background: var(--bg-raise);
  margin-bottom: 10px; position: relative;
}
.code-row-inner { display: flex; align-items: center; gap: 14px; padding: 14px; }
.code-row.is-used { border-color: var(--used-line); background: var(--used-bg); }
/* dim expired rows without dropping text below AA contrast */
.code-row.is-expired { filter: saturate(.35); border-style: dashed; }
.code-row.is-expired .code-name { color: var(--ink-dim); }

.code-check {
  flex: none; appearance: none; width: 30px; height: 30px; margin: 0;
  border: 2px solid var(--cyan); background: var(--well); cursor: pointer; position: relative;
}
.code-check:checked { border-color: var(--lime); background: var(--lime); }
.code-check:checked::after {
  content: "✓"; position: absolute; inset: 0;
  display: grid; place-items: center;
  color: var(--chip-ink); font-weight: 900; font-size: 20px; font-family: var(--ui);
}

.code-main { flex: 1; min-width: 0; display: block; cursor: pointer; }
.code-name {
  display: block;
  font-family: var(--term); font-size: 1.6rem; line-height: 1.1;
  color: var(--cyan); letter-spacing: .04em; overflow-wrap: anywhere;
}
.code-row.is-used .code-name { color: var(--ink-dim); text-decoration: line-through; text-decoration-thickness: 2px; }
.code-reward { display: block; color: var(--ink); font-size: .9rem; margin-top: 2px; }
.code-meta { display: flex; gap: 8px; margin-top: 6px; flex-wrap: wrap; }
.badge {
  font-family: var(--ui); font-weight: 700; font-size: .7rem; padding: 3px 6px;
  border: 1px solid currentColor; text-transform: uppercase; letter-spacing: .08em;
}
.badge-cat { color: var(--ink-dim); }
.badge-new { color: var(--amber); text-shadow: 0 0 6px rgba(255, 176, 0, var(--glow)); }
.badge-expired { color: var(--magenta); }
.badge-used { color: var(--lime); }

.copy-btn {
  flex: none; font-family: var(--ui); font-size: .8rem; font-weight: 600;
  background: none; color: var(--ink-dim); border: 2px solid var(--line);
  min-width: 44px; min-height: 44px; padding: 6px 10px; cursor: pointer;
}
.copy-btn:hover { color: var(--cyan); border-color: var(--cyan); }

/* stamp flash on check — single 300ms run, no strobe */
@keyframes stamp { 0% { transform: scale(1.5); opacity: 0; } 60% { transform: scale(.95); opacity: 1; } 100% { transform: scale(1); } }
.code-row.just-checked .code-check { animation: stamp .3s ease-out; }

.empty-msg { color: var(--ink-dim); text-align: center; padding: 24px 0; }

/* ---------- how to ---------- */
.howto { margin-top: 40px; border-top: 2px solid var(--line); padding-top: 20px; }
.howto-list { color: var(--ink); padding-left: 22px; margin: 12px 0 0; }
.howto-list li { margin-bottom: 6px; }

/* ---------- dialog ---------- */
.sync-dialog {
  background: var(--bg-raise); color: var(--ink);
  border: 2px solid var(--magenta); border-radius: 0;
  box-shadow: 6px 6px 0 #000, 0 0 30px rgba(255, 46, 200, .25);
  padding: 24px; width: min(92vw, 420px);
}
.sync-dialog::backdrop { background: rgba(4, 2, 12, .8); }
.dialog-close-form { float: right; margin: -8px -8px 0 0; }
.dialog-close { background: none; border: none; color: var(--ink-dim); font-size: 1.2rem; cursor: pointer; min-width: 44px; min-height: 44px; }
.dialog-close:hover { color: var(--magenta); }
.dialog-title { font-family: var(--px); font-size: .9rem; color: var(--magenta); margin: 0 0 14px; }
.dialog-copy { font-size: .95rem; color: var(--ink); }
.field-label { display: block; font-size: .85rem; color: var(--ink-dim); margin: 14px 0 6px; }
.field {
  width: 100%; font-family: var(--term); font-size: 1.3rem;
  background: var(--well); color: var(--lime); border: 2px solid var(--line); padding: 10px; min-height: 44px;
}
.field:focus { border-color: var(--cyan); }
.dialog-msg { min-height: 1.4em; font-size: .9rem; color: var(--amber); }
.check-big { color: var(--lime); font-family: var(--term); font-size: 1.4rem; text-shadow: 0 0 10px rgba(57,255,107,var(--glow)); }

/* ---------- footer / toast ---------- */
.site-footer { margin-top: 48px; border-top: 2px solid var(--line); padding-top: 16px; color: var(--ink-dim); font-size: .8rem; }
.site-footer a { color: var(--cyan); }

.toast {
  position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%) translateY(20px);
  background: var(--well); color: var(--lime); border: 2px solid var(--lime);
  font-family: var(--term); font-size: 1.2rem; padding: 10px 18px;
  opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s; z-index: 20;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

@media (prefers-reduced-motion: reduce) {
  .cursor { animation: none; }
  .code-row.just-checked .code-check { animation: none; }
  .toast { transition: none; }
}

@media (max-width: 480px) {
  .code-name { font-size: 1.35rem; }
  .filters { flex-direction: column; align-items: stretch; }
  .chip-row { justify-content: stretch; }
  .chip { flex: 1; }
}