:root {
  --bg: #0d1117;
  --bg-soft: #161b22;
  --card: #1b2330;
  --border: #2b3442;
  --text: #e6edf3;
  --muted: #9aa7b4;
  --accent: #2ea44f;
  --accent-hover: #2c974b;
  --blue: #4493f8;
  --warn-bg: #2b2410;
  --warn-border: #6b5418;
  --warn-text: #f0d68a;
  --err-bg: #2d1517;
  --err-border: #6e2329;
  --err-text: #ff9b9b;
  --radius: 12px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: radial-gradient(1200px 600px at 50% -10%, #15202e 0%, var(--bg) 60%);
  color: var(--text);
  line-height: 1.55;
  min-height: 100vh;
}

code {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 1px 5px;
  font-size: 0.88em;
}

a { color: var(--blue); }

/* Header */
.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(13, 17, 23, 0.7);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 10;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 760px;
  margin: 0 auto;
  padding: 14px 20px;
}
.brand-logo { font-size: 26px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name { font-weight: 700; font-size: 1.05rem; }
.brand-sub { color: var(--muted); font-size: 0.82rem; }

/* Layout */
.container {
  max-width: 760px;
  margin: 0 auto;
  padding: 28px 20px 40px;
}

.hero { text-align: center; margin-bottom: 26px; }
.hero h1 {
  font-size: 2rem;
  margin: 0 0 8px;
  background: linear-gradient(90deg, var(--accent), var(--blue));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lead { color: var(--muted); max-width: 52ch; margin: 0 auto; }

/* Cards */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  margin-bottom: 20px;
}
.card h2 {
  font-size: 1.05rem;
  margin: 0 0 12px;
}
.flash-card h2:not(:first-child) { margin-top: 22px; }

.muted { color: var(--muted); font-size: 0.92rem; }

/* Form */
.field { display: block; margin-bottom: 4px; }
.field-label {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 6px;
}
select {
  width: 100%;
  padding: 11px 12px;
  font-size: 1rem;
  color: var(--text);
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 9px;
  appearance: none;
  cursor: pointer;
}
select:focus { outline: 2px solid var(--blue); outline-offset: 1px; }

.board-info { margin-top: -2px; margin-bottom: 14px; }

/* Buttons */
.btn {
  font: inherit;
  font-weight: 600;
  border: none;
  border-radius: 9px;
  padding: 12px 22px;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.05s ease;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-primary:active { transform: translateY(1px); }

esp-web-install-button { display: inline-block; margin: 4px 0 18px; }

/* Alerts */
.alert {
  border-radius: 10px;
  padding: 13px 15px;
  font-size: 0.92rem;
  border: 1px solid;
}
.alert-warn {
  background: var(--warn-bg);
  border-color: var(--warn-border);
  color: var(--warn-text);
}
.alert-error {
  background: var(--err-bg);
  border-color: var(--err-border);
  color: var(--err-text);
  margin-bottom: 20px;
}

/* Lists */
.checks, .changelog { margin: 0; padding-left: 20px; }
.checks li, .changelog li { margin-bottom: 7px; }

.hidden { display: none; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  text-align: center;
  padding: 22px 20px 34px;
  font-size: 0.86rem;
  color: var(--muted);
}
.site-footer p { margin: 4px 0; }

@media (max-width: 520px) {
  .hero h1 { font-size: 1.6rem; }
  .card { padding: 18px; }
}

/* ───────────────────────────────────────────────────────────────────────────
   Erweitert-Bereich (esptool-js: Info / eigene Firmware / Konsole)
   ─────────────────────────────────────────────────────────────────────────── */
.adv-card { padding: 0; }
.adv-card > summary {
  list-style: none;
  cursor: pointer;
  padding: 22px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.adv-card > summary::-webkit-details-marker { display: none; }
.adv-card > summary h2 { margin: 0; }
.adv-card > summary::before {
  content: "▸";
  color: var(--muted);
  font-size: 0.9em;
  transition: transform 0.15s ease;
}
.adv-card[open] > summary::before { transform: rotate(90deg); }
.adv-card > :not(summary) { margin-left: 22px; margin-right: 22px; }
.adv-card > :last-child { margin-bottom: 22px; }

.adv-fieldset { border: 0; padding: 0; margin: 0; min-width: 0; }
.adv-fieldset[disabled] { opacity: 0.5; }
.adv-fieldset h3 {
  font-size: 0.98rem;
  margin: 22px 0 10px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.adv-fieldset h3:first-of-type { border-top: 0; padding-top: 0; margin-top: 8px; }

.adv-row { display: flex; flex-wrap: wrap; gap: 10px; align-items: flex-end; }
.adv-grow { flex: 1 1 200px; }
.adv-con-buttons { align-items: center; }

.adv-detect {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 14px 0 0;
}
.adv-info {
  display: grid;
  grid-template-columns: max-content 1fr;
  align-content: start;
  gap: 4px 16px;
  margin: 0;
  padding: 12px 14px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 9px;
  font-size: 0.92rem;
}
.adv-info dt { color: var(--muted); }
.adv-info dd { margin: 0; }
.adv-muted { color: var(--muted); font-size: 0.82em; }

/* Board-Galerie: Kandidaten-Gruppe bzw. eindeutig bestätigtes Modul */
.adv-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 10px;
}
.adv-board {
  margin: 0;
  display: flex;
  flex-direction: column;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 9px;
  overflow: hidden;
}
.adv-board img {
  width: 100%;
  height: 120px;
  object-fit: contain;
  background: #0a0e14;
  border-bottom: 1px solid var(--border);
}
.adv-board figcaption {
  padding: 8px 10px;
  display: flex;
  flex-direction: column;
  gap: 3px;
  font-size: 0.84rem;
}
.adv-board figcaption b { font-size: 0.9rem; }
.adv-board figcaption span { color: var(--muted); font-size: 0.78rem; line-height: 1.35; }
/* Eindeutig erkannt → grün hervorgehoben */
.adv-board.confirmed {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent) inset;
}
.adv-nrf-note {
  margin: 10px 0 0;
  padding: 9px 12px;
  border-left: 3px solid var(--border);
  background: var(--bg-soft);
  border-radius: 0 8px 8px 0;
  font-size: 0.85rem;
}
@media (max-width: 420px) {
  .adv-gallery { grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); }
}

input[type="file"] {
  width: 100%;
  padding: 10px 12px;
  font: inherit;
  color: var(--text);
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 9px;
  cursor: pointer;
}
input[type="file"]::file-selector-button {
  font: inherit;
  font-weight: 600;
  margin-right: 12px;
  padding: 7px 14px;
  color: var(--text);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 7px;
  cursor: pointer;
}
input[type="text"] {
  width: 100%;
  padding: 11px 12px;
  font: inherit;
  color: var(--text);
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 9px;
}
input[type="text"]:focus,
input[type="file"]:focus { outline: 2px solid var(--blue); outline-offset: 1px; }

.adv-check {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 12px 0;
  font-size: 0.92rem;
}
.adv-check input { width: 16px; height: 16px; accent-color: var(--accent); }

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-ghost:hover { background: var(--bg-soft); }
/* „Stoppen“ – rot, beendet jede aktive Verbindung */
.btn-stop {
  background: #c5303a;
  color: #fff;
  border: 1px solid #c5303a;
}
.btn-stop:hover { background: #b12a33; }
/* Deutliches rotes Aufleuchten beim Pressen. .is-pressed wird per JS auf BEIDE
   Stoppen-Buttons gesetzt, sobald einer gedrückt wird → sie reagieren gemeinsam. */
.btn-stop:active,
.btn-stop.is-pressed {
  background: #ff3b46;
  border-color: #ff6b73;
  box-shadow: 0 0 0 3px rgba(255, 59, 70, 0.35);
  transform: translateY(1px);
}
.btn:disabled { opacity: 0.45; cursor: not-allowed; }

.adv-progress {
  height: 8px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 999px;
  overflow: hidden;
  margin: 14px 0 6px;
}
.adv-progress-bar {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--accent), var(--blue));
  transition: width 0.2s ease;
}

.adv-status { min-height: 1.2em; margin: 8px 0; font-size: 0.9rem; color: var(--muted); }
.adv-status.ok { color: var(--accent); }
.adv-status.err { color: var(--err-text); }

.adv-panel {
  margin: 6px 0;
  padding: 9px 12px;
  border-radius: 9px;
  font-size: 0.9rem;
  font-weight: 600;
  background: var(--bg-soft);
  border: 1px solid var(--border);
}
.adv-panel.ok { color: var(--accent); border-color: var(--accent); }

.adv-log {
  background: #0a0e14;
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 12px;
  margin: 8px 0 0;
  max-height: 220px;
  overflow: auto;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.8rem;
  line-height: 1.4;
  color: var(--muted);
  white-space: pre-wrap;
  word-break: break-word;
}
.adv-log:empty { display: none; }
.adv-console { color: #cfe3c0; min-height: 120px; }
.adv-console:empty { display: block; }

/* ───────────────────────────────────────────────────────────────────────────
   Credits · Über mich
   ─────────────────────────────────────────────────────────────────────────── */
.credits-bio { margin: 4px 0 14px; }
.credits-bio p { margin: 0 0 10px; }
.credits-bio p:last-child { margin-bottom: 0; }
.credits-meta {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 4px 16px;
  margin: 0 0 14px;
  padding: 12px 14px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 9px;
  font-size: 0.92rem;
}
.credits-meta dt { color: var(--muted); }
.credits-meta dd { margin: 0; }
.credits-thirdparty { font-size: 0.84rem; margin: 0 0 16px; }

.donate {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 14px 15px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: linear-gradient(180deg, rgba(46, 164, 79, 0.10), rgba(68, 147, 248, 0.06));
}
.donate-label { font-size: 0.92rem; }
.donate-buttons { display: flex; flex-wrap: wrap; gap: 10px; }
.donate-buttons .btn {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}
.btn-blue { background: var(--blue); color: #fff; }
.btn-blue:hover { filter: brightness(1.08); }

/* ───────────────────────────────────────────────────────────────────────────
   ESP Web Tools Flash-Dialog im craith-Design
   Die „Helfer-Fenster" (Verbinden/Flashen-Dialog) basieren auf Material 3 und
   laufen im Shadow DOM. ESP Web Tools setzt sein eigenes Light-Theme auf das
   :host der Elemente (--md-sys-color-surface:#fff, primary:#03a9f4 …). Um das
   zu überschreiben, müssen wir die Tokens direkt auf den Host-Tags mit
   !important setzen — das gewinnt gegen die :host-Regel und vererbt in alle
   inneren ew-*/md-*-Komponenten. Die :root-Variante deckt zusätzlich Consumer
   mit var(..., fallback) ab.
   ─────────────────────────────────────────────────────────────────────────── */
:root,
esp-web-install-button,
ewt-install-dialog {
  /* Flächen & Text */
  --md-sys-color-surface: var(--card) !important;
  --md-sys-color-surface-container: var(--bg-soft) !important;
  --md-sys-color-surface-container-high: #20293a !important;
  --md-sys-color-surface-container-highest: #283143 !important;
  --md-sys-color-on-surface: var(--text) !important;
  --md-sys-color-on-surface-variant: var(--muted) !important;
  --md-sys-color-outline: var(--border) !important;
  --md-sys-color-outline-variant: var(--border) !important;
  --md-sys-color-shadow: #000 !important;
  --md-sys-color-scrim: rgba(1, 4, 9, 0.6) !important;

  /* Primär (Aktions-Buttons im Dialog) = craith-Grün */
  --md-sys-color-primary: var(--accent) !important;
  --md-sys-color-on-primary: #ffffff !important;
  --md-sys-color-primary-container: var(--accent) !important;
  --md-sys-color-on-primary-container: #ffffff !important;

  /* Sekundär = craith-Blau */
  --md-sys-color-secondary: var(--blue) !important;
  --md-sys-color-on-secondary: #ffffff !important;
  --md-sys-color-secondary-container: #1d2b3f !important;
  --md-sys-color-on-secondary-container: var(--text) !important;

  /* Fehlerzustände passend zu unseren Error-Alerts */
  --md-sys-color-error: var(--err-text) !important;
  --md-sys-color-on-error: var(--err-bg) !important;
  --md-sys-color-error-container: var(--err-bg) !important;
  --md-sys-color-on-error-container: var(--err-text) !important;

  /* ESP-Web-Tools-eigene Variablen aus dem Light-Theme */
  --text-color: var(--text) !important;
  --danger-color: var(--err-text) !important;

  /* Runde Ecken wie unsere Buttons */
  --esp-tools-button-border-radius: 9px !important;

  /* Älterer MDC-Theme-Fallback (Install-Button) */
  --mdc-theme-primary: var(--accent) !important;
  --mdc-theme-secondary: var(--blue) !important;
}