/* BW16 / ESP32-C3 网页刷写工具 · 深色主题 */

:root {
  --bg: #0b0f14;
  --bg-panel: #121821;
  --bg-panel-2: #0f141c;
  --border: #233042;
  --text: #dbe4ee;
  --text-dim: #7d8da1;
  --accent: #38bdf8;
  --accent-dark: #0ea5e9;
  --ok: #22c55e;
  --warn: #eab308;
  --err: #ef4444;
  --radius: 10px;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

/* hidden 语义兜底：类选择器的 display 规则会压过 [hidden] 的 UA 样式
   （实例：.badge/.alert 让登出后的额度徽章/公告条关不掉）。
   2026-11-02 实锤 topbar 残留过期登录文本，故全局恢复 hidden 语义。 */
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 16px 32px;
}

h2 { font-size: 1.05rem; margin: 28px 0 12px; }
h2 small { font-weight: normal; }
a { color: var(--accent); }

.dim { color: var(--text-dim); }
.small { font-size: 0.85rem; }

/* ---------- 顶栏 ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-panel-2);
}
.topbar h1 { font-size: 1.1rem; margin: 0; }

.view-nav { display: flex; gap: 6px; }
.view-tab {
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-dim);
  font-size: 0.9rem;
  cursor: pointer;
}
.view-tab.selected {
  color: var(--accent);
  border-color: var(--accent);
}

/* ---------- 救砖页 ---------- */
.rescue-slot {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 8px 0;
  border-bottom: 1px dashed var(--border);
}
.rescue-slot:last-of-type { border-bottom: none; }
.rescue-label { min-width: 200px; font-size: 0.9rem; }
.rescue-slot input[type="file"] { color: var(--text-dim); font-size: 0.85rem; max-width: 240px; }

.badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 0.8rem;
  border: 1px solid var(--border);
}
.badge-ok { color: var(--ok); border-color: var(--ok); }
.badge-err { color: var(--err); border-color: var(--err); }
.badge-warn { color: var(--warn); border-color: var(--warn); }
.badge-dim { color: var(--text-dim); }

/* ---------- 设备卡片 ---------- */
.device-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
}
.device-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px;
  text-align: left;
  background: var(--bg-panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color 0.15s, transform 0.1s;
}
.device-card:hover { border-color: var(--accent); }
.device-card.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}
.device-card:disabled { opacity: 0.5; cursor: not-allowed; }
.device-icon { font-size: 1.6rem; }
.device-name { font-size: 1.15rem; font-weight: 600; }
.device-desc { color: var(--text-dim); font-size: 0.85rem; }

/* ---------- 固件卡片 ---------- */
.fw-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 10px;
}
.fw-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  text-align: left;
  background: var(--bg-panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color 0.15s;
  word-break: break-all;
}
.fw-card:hover { border-color: var(--accent); }
.fw-card.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}
.fw-card:disabled { opacity: 0.45; cursor: not-allowed; }

.color-dot {
  flex: none;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--text-dim);
}
.fw-name { font-weight: 600; }

/* ---------- 刷写面板 ---------- */
.flash-panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* ---------- 使用说明页（M8） ---------- */
.guide-hero {
  display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  background: linear-gradient(135deg, rgba(56, 189, 248, .14), rgba(14, 165, 233, .04));
  border: 1px solid var(--accent-dark);
  border-radius: var(--radius); padding: 14px 16px;
}
.guide-hero b { font-size: 1rem; }
.guide-hero p { margin: 4px 0 0; }
.guide-steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 10px; }
.guide-step { background: var(--bg-panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; }
.guide-step i {
  display: inline-flex; align-items: center; justify-content: center;
  width: 26px; height: 26px; border-radius: 50%; font-style: normal;
  background: var(--accent); color: #06121d; font-weight: 700;
}
.guide-step b { display: block; margin: 8px 0 4px; }
.guide-step p, .guide-note p, .guide-card p { margin: 0; font-size: 0.9rem; color: var(--text-dim); }
.guide-note { background: var(--bg-panel); border: 1px dashed var(--border); border-radius: var(--radius); padding: 10px 14px; }
.guide-note code { color: var(--accent); }
.guide-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 760px) { .guide-cols { grid-template-columns: 1fr; } }
.guide-card { background: var(--bg-panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; }
.guide-card h3 { margin: 0 0 10px; font-size: 0.95rem; }
.guide-card p { margin: 8px 0; }
.guide-card b { color: var(--text); }
.guide-card details { border-bottom: 1px solid var(--border); padding: 8px 0; }
.guide-card details:last-child { border-bottom: 0; padding-bottom: 0; }
.guide-card summary { cursor: pointer; font-size: 0.9rem; }
.guide-card details p { margin: 8px 0 0; }
.guide-contact {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  background: var(--bg-panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 12px 14px; font-size: 0.9rem;
}
.guide-contact .dim { font-size: 0.85rem; }
.flash-target { display: flex; align-items: center; gap: 10px; }

.btn {
  padding: 9px 18px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-panel-2);
  color: var(--text);
  font-size: 0.95rem;
  cursor: pointer;
}
.btn:hover { border-color: var(--accent); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn-primary {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  color: #fff;
  font-weight: 600;
}
.btn-primary:hover:not(:disabled) { background: var(--accent); }
.btn-small { padding: 4px 10px; font-size: 0.8rem; }
.btn-danger { border-color: var(--err); color: var(--err); }

.flash-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

/* ESP Web Tools 按钮配色对齐站点主题 */
#esp-web-slot esp-web-install-button {
  --esp-tools-button-color: var(--accent-dark);
  --esp-tools-button-text-color: #fff;
  --esp-tools-button-border-color: var(--accent-dark);
}
.advanced-row {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-dim);
  font-size: 0.85rem;
  cursor: pointer;
}

/* ---------- 进度条 ---------- */
.progress-track {
  height: 10px;
  background: var(--bg-panel-2);
  border: 1px solid var(--border);
  border-radius: 999px;
  overflow: hidden;
}
.progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent-dark), var(--accent));
  transition: width 0.2s;
}
.progress-bar.done { background: var(--ok); }
.progress-bar.fail { background: var(--err); }

/* ---------- 提示块 ---------- */
.alert {
  padding: 12px 14px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  font-size: 0.9rem;
}
.alert-info { border-color: var(--accent); background: rgba(56, 189, 248, 0.08); }
.alert-ok { border-color: var(--ok); background: rgba(34, 197, 94, 0.08); }
.alert-warn { border-color: var(--warn); background: rgba(234, 179, 8, 0.08); }
.alert-err { border-color: var(--err); background: rgba(239, 68, 68, 0.08); }
.alert p, .alert ol { margin: 6px 0; }

/* ---------- 日志 ---------- */
.log-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}
.log-actions { display: flex; gap: 8px; }
.log-head h2 { margin: 28px 0 12px; }
.log-panel {
  margin: 0;
  padding: 12px;
  max-height: 320px;
  overflow-y: auto;
  background: var(--bg-panel-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--mono);
  font-size: 0.78rem;
  white-space: pre-wrap;
  word-break: break-all;
}
.log-line-err { color: var(--err); }
.log-line-ok { color: var(--ok); }
.log-line-warn { color: var(--warn); }
.log-line-sys { color: var(--text-dim); }

/* ---------- 页脚 ---------- */
.footer {
  max-width: 960px;
  margin: 0 auto;
  padding: 16px;
  color: var(--text-dim);
  font-size: 0.82rem;
  border-top: 1px solid var(--border);
}

/* ---------- 移动端 ---------- */
@media (max-width: 560px) {
  .fw-grid { grid-template-columns: 1fr 1fr; }
  .device-grid { grid-template-columns: 1fr; }
  .topbar { padding: 12px 16px; }
}
@media (max-width: 400px) {
  .fw-grid { grid-template-columns: 1fr; }
}

/* ---------- 公告条（M4：F5） ---------- */
/* 显示样式只写在 CSS：内联 display 会压过 hidden 属性，导致关闭/隐藏失效 */
#announce-bar {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin: 10px 14px -4px;
}
#announce-bar[hidden] { display: none; }

/* ---------- 全屏浮层（M3/M4/M6：登录/版本/反馈/兑换） ---------- */
/* 内联 display:flex 会压过 hidden 属性导致浮层常驻显示——显示样式统一在此控制 */
#auth-overlay, #version-overlay, #fb-overlay, #rd-overlay,
#contact-overlay, #share-overlay {
  display: flex;
  align-items: center;
  justify-content: center;
}
#auth-overlay[hidden], #version-overlay[hidden],
#fb-overlay[hidden], #rd-overlay[hidden],
#contact-overlay[hidden], #share-overlay[hidden] { display: none; }

/* ---------- 动画层（M8 视觉升级：SVG/过渡统一语言） ----------
   原则：只动 transform/opacity（合成器路径，不抢串口读循环的 CPU 时间）；
   全部动画在 prefers-reduced-motion 下停用。 */

/* 顶栏品牌闪电：呼吸辉光 */
.logo-bolt { margin-right: 6px; vertical-align: -3px; }
.logo-bolt path { fill: var(--accent); }
@keyframes bolt-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.55; transform: scale(0.92); }
}
.logo-bolt path { transform-origin: 12px 12px; animation: bolt-pulse 2.6s ease-in-out infinite; }

/* 设备/固件卡：悬停抬升 + 选中辉光 */
.device-card, .fw-card { transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease; }
.device-card:hover, .fw-card:hover { transform: translateY(-2px); border-color: var(--accent); }
.device-card.selected, .fw-card.selected { box-shadow: 0 0 0 1px var(--accent), 0 0 18px rgba(56, 189, 248, 0.25); }
.fw-card { display: flex; flex-direction: column; align-items: flex-start; gap: 4px; }
.fw-card .small.dim { text-align: left; }

/* 进度条：数据流条纹 */
.progress-bar {
  background-image: linear-gradient(135deg, rgba(255,255,255,0.28) 25%, transparent 25%, transparent 50%, rgba(255,255,255,0.28) 50%, rgba(255,255,255,0.28) 75%, transparent 75%, transparent);
  background-size: 18px 18px;
  animation: bar-flow 0.9s linear infinite;
}
@keyframes bar-flow { from { background-position: 0 0; } to { background-position: 18px 0; } }
.progress-bar.done, .progress-bar.fail { animation: none; background-image: none; }

/* 结果图标（ui.js 注入的 SVG）：对勾描画 / 警示脉冲 */
.result-icon { flex: 0 0 auto; margin-right: 10px; vertical-align: -4px; }
.result-icon circle, .result-icon path, .result-icon line {
  fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round;
}
@keyframes icon-draw { from { stroke-dashoffset: var(--len, 60); } to { stroke-dashoffset: 0; } }
@keyframes icon-pop { 0% { transform: scale(0.4); opacity: 0; } 70% { transform: scale(1.12); } 100% { transform: scale(1); opacity: 1; } }
.result-icon circle { animation: icon-pop 0.35s ease-out both; transform-origin: center; }
.result-icon .draw { animation: icon-draw 0.45s 0.15s ease-out both; }

/* 主按钮：微妙呼吸（仅主 CTA，避免满屏闪烁） */
.btn-primary { transition: box-shadow 0.25s ease; }
.btn-primary:not([disabled]):hover { box-shadow: 0 0 14px rgba(56, 189, 248, 0.45); }

/* 无障碍：偏好减弱动效时全部停用 */
@media (prefers-reduced-motion: reduce) {
  .logo-bolt path, .progress-bar, .result-icon circle, .result-icon .draw { animation: none !important; }
  .device-card, .fw-card, .btn-primary { transition: none; }
  .device-card:hover, .fw-card:hover { transform: none; }
}

/* 使用说明 hero SVG：芯片呼吸 / WiFi 弧脉冲 / 数据流 */
.guide-svg { display: block; }
.guide-svg .g-core { animation: bolt-pulse 2s ease-in-out infinite; transform-origin: 66px 32px; }
.guide-svg .g-arc { opacity: 0; animation: arc-pulse 2.4s ease-out infinite; transform-origin: 92px 32px; }
.guide-svg .a1 { animation-delay: 0s; }
.guide-svg .a2 { animation-delay: 0.25s; }
.guide-svg .a3 { animation-delay: 0.5s; }
@keyframes arc-pulse { 0% { opacity: 0; transform: scale(0.7); } 30% { opacity: 1; } 100% { opacity: 0; transform: scale(1.15); } }
.guide-svg .g-dot { animation: bolt-pulse 1.6s ease-in-out infinite; transform-origin: 92px 32px; }
.guide-svg .g-flow { animation: flow-dash 1.1s linear infinite; }
@keyframes flow-dash { from { stroke-dashoffset: 28; } to { stroke-dashoffset: 0; } }

/* 步骤图标：进入描画 */
.guide-ico { display: block; margin-bottom: 8px; }
.guide-ico .d1 { stroke-dasharray: 40; stroke-dashoffset: 40; animation: icon-draw 0.7s 0.2s ease-out forwards; --len: 40; }
#view-guide:not([hidden]) .guide-ico .d1 { animation-play-state: running; }
.guide-step { position: relative; }
.guide-step i { position: absolute; top: 12px; right: 12px; margin: 0; }

/* 行内 SVG 图标通用对齐（M8 视觉升级） */
.h-ico { vertical-align: -4px; }
.device-icon .h-ico { vertical-align: 0; display: block; }
h3 .h-ico { vertical-align: -3px; margin-right: 4px; }