/* Touge radio flasher. Dark only, laid out like the Meshtastic web flasher
   (three steps across the top, rounded cards, a flash dialog) with our own
   name, mark and accent. */

:root {
  --bg-deep: #05060b;
  --bg-velvet: #0b0f1a;
  --text: #e5e7eb;
  --text-muted: #9ca3af;
  --surface: rgba(39, 39, 42, 0.6);
  --surface-solid: #1c1c20;
  --surface-raised: rgba(63, 63, 70, 0.45);
  --border: rgba(255, 255, 255, 0.1);
  --border-strong: rgba(255, 255, 255, 0.2);
  --accent: #ff9a3c;
  --accent-strong: #f97316;
  --accent-soft: rgba(255, 154, 60, 0.16);
  --accent-glow: rgba(255, 154, 60, 0.28);
  --on-accent: #1a0d00;
  --danger: #f87171;
  --danger-soft: rgba(248, 113, 113, 0.14);
  --ok: #4ade80;
  --ok-soft: rgba(74, 222, 128, 0.14);
  --warn: #fbbf24;
  --warn-soft: rgba(251, 191, 36, 0.14);
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --mono: ui-monospace, "Cascadia Mono", "SFMono-Regular", Menlo, Consolas, monospace;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html, body { margin: 0; }

body {
  min-height: 100vh;
  font-family: "Atkinson Hyperlegible", system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.5;
  color: var(--text);
  background:
    radial-gradient(ellipse 80% 50% at 20% -10%, var(--accent-soft), transparent 60%),
    radial-gradient(ellipse 60% 40% at 100% 0%, rgba(59, 130, 246, 0.07), transparent 60%),
    linear-gradient(180deg, var(--bg-velvet), var(--bg-deep) 70%);
  background-color: var(--bg-deep);
  background-attachment: fixed;
}

a { color: var(--accent); }
a:hover { color: #ffb46e; }

code { font-family: var(--mono); font-size: 0.92em; }

.banner {
  padding: 10px 16px;
  text-align: center;
  font-size: 15px;
}
.banner[hidden] { display: none; }
.banner-warn { background: var(--warn); color: #1a1200; }
.banner-danger { background: var(--danger); color: #1a0000; }

.page {
  max-width: 1120px;
  margin: 0 auto;
  padding: 24px 16px 48px;
}

/* ---- header ---- */

.header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 8px 0 28px;
}
.mark { width: 56px; height: 56px; flex: none; }
.header h1 {
  margin: 0;
  font-size: clamp(26px, 5vw, 38px);
  line-height: 1.1;
  letter-spacing: 0.01em;
}
.header .subtitle { margin: 4px 0 0; color: var(--text-muted); }

/* ---- the three steps ---- */

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
@media (max-width: 820px) {
  .steps { grid-template-columns: 1fr; }
}

.step {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  backdrop-filter: blur(6px);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.step.ready {
  border-color: rgba(255, 154, 60, 0.35);
  box-shadow: 0 0 24px rgba(255, 154, 60, 0.06);
}
.step-head { display: flex; align-items: center; gap: 12px; }
.step-num {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  flex: none;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  font-weight: 700;
  color: var(--text-muted);
}
.step.ready .step-num { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.step h2 { margin: 0; font-size: 20px; }
.step-body { flex: 1; color: var(--text-muted); font-size: 15px; }
.step-body strong { color: var(--text); }
.step-actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* ---- buttons ---- */

button { font: inherit; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-strong);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, transform 0.05s;
}
.btn:hover:not(:disabled) { background: rgba(255, 255, 255, 0.1); border-color: rgba(255, 255, 255, 0.3); }
.btn:active:not(:disabled) { transform: translateY(1px); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--on-accent);
}
.btn-primary:hover:not(:disabled) { background: #ffad63; border-color: #ffad63; }
.btn-danger { background: var(--danger); border-color: var(--danger); color: #1a0000; }
.btn-danger:hover:not(:disabled) { background: #fca5a5; border-color: #fca5a5; }
.btn-wide { flex: 1; }
.btn-big { min-height: 56px; font-size: 18px; width: 100%; }
.btn-link {
  background: none;
  border: none;
  padding: 0;
  color: var(--accent);
  text-decoration: underline;
  cursor: pointer;
  font-size: 14px;
}

/* ---- device summary in step 1 ---- */

.picked {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px;
  border-radius: var(--radius-md);
  background: var(--surface-raised);
}
.picked[hidden] { display: none; }
.picked svg { width: 72px; height: auto; flex: none; }
.picked .name { color: var(--text); font-weight: 700; }
.picked .how { font-size: 13px; }

.chip-line { font-family: var(--mono); font-size: 13px; color: var(--text-muted); }

.select {
  width: 100%;
  min-height: 44px;
  padding: 8px 12px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-strong);
  background: var(--surface-solid);
  color: var(--text);
  font: inherit;
}

.note { font-size: 14px; color: var(--text-muted); }
.note-bad { color: var(--danger); }
.note-ok { color: var(--ok); }

/* ---- info cards below the steps ---- */

.info {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 32px;
}
@media (max-width: 820px) {
  .info { grid-template-columns: 1fr; }
}
.card {
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
}
.card h3 { margin: 0 0 8px; font-size: 18px; }
.card p, .card li { color: var(--text-muted); font-size: 15px; }
.card p { margin: 0 0 10px; }
.card ul, .card ol { margin: 0; padding-left: 20px; }
.card li + li { margin-top: 6px; }
.card strong { color: var(--text); }

.footer {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-muted);
}
.footer p { margin: 0 0 8px; }

/* ---- modals ---- */

dialog {
  width: min(760px, calc(100vw - 32px));
  max-height: calc(100vh - 48px);
  padding: 0;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(39, 39, 42, 0.97), rgba(24, 24, 27, 0.99));
  color: var(--text);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
}
dialog::backdrop { background: rgba(0, 0, 0, 0.45); backdrop-filter: blur(4px); }
.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}
.modal-head h2 { margin: 0; font-size: 20px; }
.modal-close {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-muted);
  cursor: pointer;
  font-size: 18px;
}
.modal-body { padding: 20px; overflow-y: auto; }

/* device picker */
.device-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
}
.device-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 18px 14px;
  border: 1px solid rgba(63, 63, 70, 0.7);
  border-radius: var(--radius-md);
  background: rgba(39, 39, 42, 0.4);
  color: var(--text);
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s;
}
.device-card:hover {
  border-color: rgba(255, 154, 60, 0.5);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3), 0 0 20px rgba(255, 154, 60, 0.1);
  transform: translateY(-2px);
}
.device-card svg { width: 150px; height: auto; }
.device-card .name { font-weight: 700; font-size: 17px; }
.device-card .spec { font-family: var(--mono); font-size: 12px; color: var(--text-muted); }
.device-card .blurb { font-size: 13px; color: var(--text-muted); }
.tag {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  background: var(--accent-soft);
  color: var(--accent);
}

/* flash dialog */
.flash-summary {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 16px;
  color: var(--text-muted);
}
.flash-summary svg { width: 64px; height: auto; flex: none; }
.flash-summary strong { color: var(--text); }

.choices { display: grid; gap: 12px; }
.choice {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.03);
  cursor: pointer;
}
.choice input { margin-top: 5px; accent-color: var(--accent); width: 18px; height: 18px; flex: none; }
.choice .title { display: block; font-weight: 700; }
.choice .desc { display: block; font-size: 14px; color: var(--text-muted); }
.choice:has(input:checked) { border-color: var(--accent); background: var(--accent-soft); }
.choice-danger .title { color: var(--danger); }
.choice-danger:has(input:checked) { border-color: var(--danger); background: var(--danger-soft); }

.flash-go { margin-top: 16px; }

.progress-wrap { margin-top: 18px; }
.progress-wrap[hidden] { display: none; }
.progress-label { display: flex; justify-content: space-between; font-size: 14px; color: var(--text-muted); margin-bottom: 6px; }
.progress {
  height: 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}
.progress-bar {
  height: 100%;
  width: 0%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent-strong), var(--accent));
  transition: width 0.2s;
}
.progress.indeterminate .progress-bar {
  width: 30%;
  animation: slide 1.2s ease-in-out infinite;
}
@keyframes slide {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(340%); }
}

.result {
  margin-top: 16px;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  font-size: 15px;
}
.result[hidden] { display: none; }
.result-ok { background: var(--ok-soft); color: var(--ok); }
.result-bad { background: var(--danger-soft); color: var(--danger); }
.result ol { margin: 8px 0 0; padding-left: 20px; color: var(--text); }

details.log { margin-top: 16px; }
details.log summary { cursor: pointer; color: var(--text-muted); font-size: 14px; }
.log pre {
  margin: 8px 0 0;
  max-height: 260px;
  overflow: auto;
  padding: 12px;
  border-radius: var(--radius-sm);
  background: #050507;
  border: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.45;
  white-space: pre-wrap;
  word-break: break-all;
  color: #cbd5e1;
}

@media (max-width: 520px) {
  .page { padding-top: 16px; }
  .mark { width: 44px; height: 44px; }
  .modal-body { padding: 16px; }
}