/* ============================================
   MailDrop · SaaS-style 接码邮箱
   ============================================ */

:root {
  /* tone */
  --bg: oklch(0.992 0.004 85);
  --bg-elev: oklch(1 0 0);
  --bg-sunken: oklch(0.975 0.005 85);
  --bg-hover: oklch(0.965 0.008 85);

  --border: oklch(0.92 0.006 85);
  --border-strong: oklch(0.86 0.008 85);

  --text: oklch(0.22 0.01 250);
  --text-muted: oklch(0.5 0.012 250);
  --text-faint: oklch(0.65 0.01 250);

  /* accent (indigo default) */
  --accent: oklch(0.55 0.18 262);
  --accent-soft: oklch(0.96 0.03 262);
  --accent-strong: oklch(0.45 0.2 262);
  --accent-fg: oklch(1 0 0);

  /* code highlight */
  --code-bg: oklch(0.95 0.07 85);
  --code-border: oklch(0.82 0.13 80);
  --code-text: oklch(0.35 0.13 70);

  /* unread / accent dot */
  --unread: oklch(0.6 0.19 230);

  /* radii */
  --r-sm: 6px;
  --r: 10px;
  --r-lg: 14px;
  --r-xl: 20px;

  /* shadow */
  --shadow-sm: 0 1px 2px oklch(0.2 0.02 250 / 0.04);
  --shadow: 0 4px 16px oklch(0.2 0.02 250 / 0.06), 0 1px 2px oklch(0.2 0.02 250 / 0.04);
  --shadow-lg: 0 12px 40px oklch(0.2 0.02 250 / 0.12), 0 2px 6px oklch(0.2 0.02 250 / 0.06);

  /* density */
  --row-py: 14px;
  --row-px: 18px;
}

[data-density="compact"] {
  --row-py: 10px;
  --row-px: 14px;
}

[data-accent="emerald"] {
  --accent: oklch(0.6 0.16 160);
  --accent-soft: oklch(0.96 0.03 160);
  --accent-strong: oklch(0.5 0.18 160);
}
[data-accent="violet"] {
  --accent: oklch(0.56 0.2 295);
  --accent-soft: oklch(0.96 0.03 295);
  --accent-strong: oklch(0.46 0.22 295);
}
[data-accent="rose"] {
  --accent: oklch(0.62 0.2 15);
  --accent-soft: oklch(0.96 0.03 15);
  --accent-strong: oklch(0.52 0.22 15);
}

[data-theme="dark"] {
  --bg: oklch(0.18 0.01 250);
  --bg-elev: oklch(0.22 0.01 250);
  --bg-sunken: oklch(0.16 0.01 250);
  --bg-hover: oklch(0.26 0.012 250);
  --border: oklch(0.3 0.012 250);
  --border-strong: oklch(0.38 0.014 250);
  --text: oklch(0.95 0.005 85);
  --text-muted: oklch(0.7 0.01 250);
  --text-faint: oklch(0.55 0.012 250);
  --accent-soft: oklch(0.32 0.06 262);
  --code-bg: oklch(0.32 0.06 80);
  --code-border: oklch(0.5 0.13 80);
  --code-text: oklch(0.92 0.13 85);
  --shadow: 0 4px 16px rgba(0,0,0,0.3), 0 1px 2px rgba(0,0,0,0.2);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: 'Inter Tight', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  font-size: 14px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input { font-family: inherit; }

/* ============== Layout shell ============== */
.app {
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* ============== Top bar ============== */
.topbar {
  height: 52px;
  display: flex;
  align-items: center;
  padding: 0 18px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-elev);
  gap: 16px;
  flex-shrink: 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: -0.01em;
}
.brand-mark {
  width: 26px;
  height: 26px;
  border-radius: 7px;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  display: grid;
  place-items: center;
  color: var(--accent-fg);
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  font-size: 13px;
  box-shadow: 0 2px 6px oklch(from var(--accent) l c h / 0.3);
}
.brand-tag {
  font-size: 10px;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 2px 7px;
  border-radius: 4px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.topbar-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12.5px;
  color: var(--text-muted);
}
.tb-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  background: var(--bg-sunken);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 12px;
}
.tb-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: oklch(0.7 0.17 145);
  box-shadow: 0 0 0 3px oklch(0.7 0.17 145 / 0.18);
}
.tb-account {
  display: flex; align-items: center; gap: 8px;
  padding: 4px 10px 4px 4px;
  border: 1px solid var(--border);
  border-radius: 100px;
  background: var(--bg-elev);
  font-size: 12.5px;
}
.tb-avatar {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: white;
  display: grid; place-items: center;
  font-size: 11px;
  font-weight: 600;
}
.tb-logout {
  font-size: 11.5px;
  color: var(--text-faint);
  padding: 5px 9px;
  border-radius: 6px;
}
.tb-logout:hover { color: var(--text); background: var(--bg-hover); }

/* ============== Main 3-col ============== */
.shell {
  flex: 1;
  display: grid;
  grid-template-columns: 232px 380px 1fr;
  min-height: 0;
}

/* ============== Sidebar ============== */
.sidebar {
  border-right: 1px solid var(--border);
  background: var(--bg-sunken);
  padding: 14px 10px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.side-section {
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-faint);
  padding: 14px 10px 6px;
  font-weight: 600;
}
.side-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--r-sm);
  font-size: 13.5px;
  color: var(--text);
  cursor: pointer;
  position: relative;
}
.side-item:hover { background: var(--bg-hover); }
.side-item.active {
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-weight: 600;
}
[data-theme="dark"] .side-item.active { color: oklch(0.92 0.05 262); }
.side-item .si-icon {
  width: 16px; height: 16px;
  display: grid; place-items: center;
  flex-shrink: 0;
}
.side-item .si-count {
  margin-left: auto;
  font-size: 11px;
  color: var(--text-faint);
  font-variant-numeric: tabular-nums;
}
.side-item.active .si-count { color: var(--accent-strong); }

.side-promo {
  margin-top: auto;
  padding: 14px;
  border-radius: var(--r);
  background: var(--bg-elev);
  border: 1px solid var(--border);
  font-size: 12px;
  line-height: 1.55;
  color: var(--text-muted);
}
.side-promo strong { color: var(--text); display: block; margin-bottom: 4px; font-size: 13px; }
.side-promo .pp-tags {
  display: flex; flex-wrap: wrap; gap: 4px;
  margin: 8px 0 10px;
}
.side-promo .pp-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px;
  padding: 2px 6px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  border-radius: 4px;
  font-weight: 600;
}
.side-promo .pp-qr {
  background: white;
  padding: 6px;
  border-radius: 8px;
  margin: 8px 0;
  border: 1px solid var(--border);
}
.side-promo .pp-qr img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1;
  object-fit: contain;
  border-radius: 4px;
}
.side-promo .pp-wx {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 10px;
  background: var(--bg-sunken);
  border-radius: 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--text);
  font-weight: 600;
}
.side-promo .pp-wx-icon {
  width: 18px; height: 18px;
  border-radius: 4px;
  background: oklch(0.7 0.17 145);
  display: grid; place-items: center;
  color: white;
  font-size: 11px;
  font-weight: 700;
  flex-shrink: 0;
}

/* ============== Mail list ============== */
.maillist {
  border-right: 1px solid var(--border);
  background: var(--bg-elev);
  display: flex;
  flex-direction: column;
  min-height: 0;
}
.ml-header {
  padding: 14px 18px 10px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.ml-title {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.ml-count {
  font-size: 11.5px;
  color: var(--text-faint);
  margin-left: 4px;
  font-variant-numeric: tabular-nums;
}
.ml-tools {
  margin-left: auto;
  display: flex;
  gap: 4px;
}
.icon-btn {
  width: 28px; height: 28px;
  border-radius: 6px;
  display: grid; place-items: center;
  color: var(--text-muted);
}
.icon-btn:hover { background: var(--bg-hover); color: var(--text); }

.ml-search {
  padding: 8px 14px 12px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.ml-search-input {
  width: 100%;
  padding: 8px 12px 8px 32px;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  font-size: 12.5px;
  background: var(--bg-sunken);
  color: var(--text);
  outline: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23999' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><circle cx='11' cy='11' r='7'/><path d='m21 21-3.5-3.5'/></svg>");
  background-repeat: no-repeat;
  background-position: 11px center;
}
.ml-search-input:focus {
  border-color: var(--accent);
  background: var(--bg-elev);
}

.ml-list {
  flex: 1;
  overflow-y: auto;
  padding: 4px 0;
}
.ml-row {
  padding: var(--row-py) var(--row-px);
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.ml-row:hover { background: var(--bg-hover); }
.ml-row.selected {
  background: var(--accent-soft);
}
.ml-row.selected::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--accent);
}
.ml-row.unread .mr-from { font-weight: 700; }
.ml-row.unread .mr-subject { font-weight: 600; color: var(--text); }
.ml-row .mr-unread-dot {
  position: absolute;
  left: 7px; top: 50%;
  transform: translateY(-50%);
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--unread);
}
.ml-row.selected.unread .mr-unread-dot { background: var(--accent); }

.mr-top {
  display: flex;
  align-items: center;
  gap: 8px;
}
.mr-from {
  font-size: 13.5px;
  color: var(--text);
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.mr-time {
  font-size: 11.5px;
  color: var(--text-faint);
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
}
.mr-subject {
  font-size: 13px;
  color: var(--text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.mr-preview {
  font-size: 12px;
  color: var(--text-faint);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 8px;
}
.mr-code-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11.5px;
  font-weight: 700;
  padding: 2px 7px 2px 6px;
  background: var(--code-bg);
  color: var(--code-text);
  border: 1px solid var(--code-border);
  border-radius: 5px;
  letter-spacing: 0.04em;
  flex-shrink: 0;
}
.mr-code-chip:hover {
  background: oklch(from var(--code-bg) calc(l - 0.03) c h);
}
.mr-code-chip-icon {
  font-size: 10px;
  opacity: 0.7;
}
.mr-flags {
  display: flex;
  gap: 4px;
  flex-shrink: 0;
}
.mr-flag {
  font-size: 10px;
  padding: 1px 6px;
  border-radius: 3px;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.mr-flag.junk { background: oklch(0.95 0.05 30); color: oklch(0.45 0.15 30); }
.mr-flag.code { background: var(--code-bg); color: var(--code-text); border: 1px solid var(--code-border); }
[data-theme="dark"] .mr-flag.junk { background: oklch(0.32 0.08 30); color: oklch(0.85 0.12 30); }

/* ============== Reading pane ============== */
.reader {
  background: var(--bg);
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
}
.reader-toolbar {
  padding: 10px 22px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-elev);
  flex-shrink: 0;
}
.rt-spacer { flex: 1; }
.rt-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  color: var(--text-muted);
}
.rt-folder {
  font-weight: 600;
  color: var(--text);
}
.rt-sep { color: var(--text-faint); }
.rt-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 11px;
  font-size: 12.5px;
  color: var(--text-muted);
  border-radius: 6px;
  border: 1px solid transparent;
}
.rt-btn:hover { background: var(--bg-hover); color: var(--text); }
.rt-btn.primary {
  background: var(--accent);
  color: var(--accent-fg);
  font-weight: 600;
}
.rt-btn.primary:hover { background: var(--accent-strong); color: var(--accent-fg); }

.reader-body {
  flex: 1;
  overflow-y: auto;
  padding: 28px 56px 60px;
  width: 100%;
}
.reader-subject {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.015em;
  margin: 0 0 14px;
  color: var(--text);
}
.reader-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 22px;
}
.rm-avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent-strong);
  display: grid; place-items: center;
  font-weight: 700;
  font-size: 14px;
  flex-shrink: 0;
}
.rm-info { flex: 1; min-width: 0; }
.rm-from { font-size: 13.5px; font-weight: 600; }
.rm-from-email { color: var(--text-faint); font-weight: 400; margin-left: 4px; font-size: 12.5px; }
.rm-to { font-size: 12px; color: var(--text-muted); margin-top: 2px; }
.rm-time { font-size: 12px; color: var(--text-faint); flex-shrink: 0; }

/* ============== Code callout ============== */
.code-callout {
  margin: 20px 0 24px;
  padding: 18px 20px;
  border-radius: var(--r-lg);
  background: linear-gradient(180deg, var(--code-bg), oklch(from var(--code-bg) calc(l + 0.02) c h));
  border: 1px solid var(--code-border);
  display: flex;
  align-items: center;
  gap: 18px;
}
.cc-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--code-text);
  opacity: 0.8;
}
.cc-code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 30px;
  font-weight: 700;
  color: var(--code-text);
  letter-spacing: 0.12em;
  margin-top: 2px;
  line-height: 1.1;
}
.cc-info { flex: 1; }
.cc-copy {
  padding: 10px 18px;
  background: var(--code-text);
  color: oklch(0.98 0.02 80);
  border-radius: 8px;
  font-weight: 600;
  font-size: 13px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  flex-shrink: 0;
}
.cc-copy:hover { background: oklch(from var(--code-text) calc(l - 0.05) c h); }

/* email body */
.reader-content {
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text);
}
.reader-content p { margin: 0 0 14px; }
.reader-content .signoff { color: var(--text-muted); font-size: 13.5px; margin-top: 24px; }

/* Branded email shell */
.ec-email {
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  background: var(--bg-elev);
  box-shadow: var(--shadow-sm);
  max-width: 720px;
  margin: 0 auto;
}
.ec-brand-bar {
  height: 6px;
}
.ec-card {
  padding: 32px 36px 30px;
}
.ec-brand {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 22px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border);
}
.ec-greeting {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 14px;
}
.ec-code-box {
  margin: 22px 0;
  padding: 22px 24px;
  border-radius: 12px;
  background: var(--bg-sunken);
  border: 1px solid var(--border);
  text-align: center;
}
.ec-code-box-dark {
  background: oklch(0.22 0.01 250);
  border-color: oklch(0.32 0.012 250);
  color: oklch(0.95 0.005 85);
}
.ec-code-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 8px;
}
.ec-code-box-dark .ec-code-label { color: oklch(0.7 0.01 250); }
.ec-code-value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 32px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--text);
}
.ec-code-box-dark .ec-code-value { color: oklch(0.98 0.005 85); }
.ec-code-meta {
  font-size: 12px;
  color: var(--text-faint);
  margin-top: 8px;
}
.ec-code-box-dark .ec-code-meta { color: oklch(0.7 0.01 250); }
.ec-link {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.ec-signoff {
  color: var(--text-muted);
  font-size: 13.5px;
  margin-top: 24px;
}
.ec-divider {
  height: 1px;
  background: var(--border);
  margin: 24px 0 18px;
}
.ec-footer {
  font-size: 11.5px;
  color: var(--text-faint);
  text-align: center;
  margin: 0;
}
.ec-fineprint {
  font-size: 12px;
  color: var(--text-faint);
  line-height: 1.6;
  word-break: break-all;
}
.ec-btn {
  display: inline-block;
  padding: 12px 26px;
  background: var(--accent);
  color: white;
  border-radius: 8px;
  font-weight: 600;
  font-size: 13.5px;
  text-decoration: none;
}
.ec-inline-code {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  background: var(--bg-sunken);
  color: var(--text);
  padding: 6px 14px;
  border-radius: 6px;
  font-weight: 600;
  letter-spacing: 0.06em;
  border: 1px solid var(--border-strong);
  font-size: 14px;
}

.reader-empty {
  flex: 1;
  display: grid;
  place-items: center;
  color: var(--text-faint);
  text-align: center;
  padding: 40px;
}
.reader-empty-mark {
  width: 56px; height: 56px;
  border-radius: 14px;
  background: var(--bg-sunken);
  border: 1px solid var(--border);
  display: grid; place-items: center;
  margin: 0 auto 14px;
  color: var(--text-muted);
}

/* ============== Login ============== */
.login-wrap {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: var(--bg);
}
.login-left {
  display: flex;
  flex-direction: column;
  padding: 40px 56px;
  justify-content: space-between;
  background: var(--bg-elev);
  border-right: 1px solid var(--border);
}
.login-form-wrap {
  max-width: 380px;
  width: 100%;
  margin: auto;
}
.login-h1 {
  font-size: 30px;
  font-weight: 700;
  letter-spacing: -0.025em;
  margin: 0 0 8px;
}
.login-sub {
  font-size: 14.5px;
  color: var(--text-muted);
  margin: 0 0 28px;
}
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.field label { font-size: 12.5px; font-weight: 600; color: var(--text-muted); }
.field input {
  padding: 11px 14px;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  font-size: 14px;
  background: var(--bg-elev);
  color: var(--text);
  outline: none;
  transition: border-color 0.12s;
}
.field input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px oklch(from var(--accent) l c h / 0.15);
}
.detect-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  margin: 0 0 18px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-sunken);
  font-size: 12.5px;
  color: var(--text-muted);
  min-height: 44px;
}
.detect-dot {
  width: 8px; height: 8px; border-radius: 50%;
  flex-shrink: 0;
  box-shadow: 0 0 0 3px oklch(from var(--accent) l c h / 0.15);
}
.detect-dot-idle {
  background: var(--border-strong);
  box-shadow: none;
  animation: pulse 1.6s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}
.detect-text { flex: 1; min-width: 0; line-height: 1.35; }
.detect-text strong { color: var(--text); font-weight: 600; }
.detect-host {
  display: block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px;
  color: var(--text-faint);
  margin-top: 2px;
}
.detect-text-idle { color: var(--text-faint); }
.detect-check {
  width: 20px; height: 20px;
  border-radius: 50%;
  background: oklch(0.7 0.17 145);
  color: white;
  display: grid; place-items: center;
  flex-shrink: 0;
}

.protocol-row {
  display: flex; gap: 8px;
  margin: 6px 0 18px;
}
.protocol-chip {
  padding: 6px 12px;
  border: 1px solid var(--border-strong);
  border-radius: 100px;
  font-size: 12px;
  color: var(--text-muted);
  background: var(--bg-elev);
}
.protocol-chip.active {
  background: var(--accent-soft);
  color: var(--accent-strong);
  border-color: var(--accent);
  font-weight: 600;
}
.login-cta {
  width: 100%;
  padding: 12px;
  background: var(--accent);
  color: var(--accent-fg);
  border-radius: 8px;
  font-weight: 600;
  font-size: 14px;
  margin-top: 6px;
}
.login-cta:hover { background: var(--accent-strong); }
.login-foot {
  margin-top: 18px;
  font-size: 12px;
  color: var(--text-faint);
  text-align: center;
  line-height: 1.6;
}
.login-brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 700;
  font-size: 16px;
}
.login-foot-tag {
  margin-top: auto;
  font-size: 11.5px;
  color: var(--text-faint);
  display: flex; align-items: center; gap: 8px;
}
.login-foot-tag .ft-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: oklch(0.7 0.17 145);
}

/* right side: feature panel */
.login-right {
  padding: 56px;
  display: flex;
  flex-direction: column;
  gap: 22px;
  background:
    radial-gradient(circle at 80% 0%, oklch(from var(--accent) l c h / 0.08), transparent 50%),
    radial-gradient(circle at 0% 100%, oklch(from var(--accent) l c h / 0.06), transparent 50%);
}
.lr-eyebrow {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}
.lr-h2 {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin: 0;
}
.lr-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 10px;
}
.lr-card {
  padding: 16px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  font-size: 12.5px;
  color: var(--text-muted);
  line-height: 1.55;
}
.lr-card strong { color: var(--text); display: block; font-size: 13.5px; margin-bottom: 4px; font-weight: 600; }
.lr-mock-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: auto;
  margin-bottom: -6px;
  padding: 0 2px;
}
.lr-mock-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 3px 8px 3px 7px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  border-radius: 4px;
  text-transform: uppercase;
}
.lr-mock-badge-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  animation: pulse 1.6s ease-in-out infinite;
}
.lr-mock-title-text {
  font-size: 12px;
  color: var(--text-faint);
}
.lr-mock {
  margin-top: 8px;
  padding: 14px 14px 0;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  background: var(--bg-elev);
  box-shadow: var(--shadow);
}
.lr-mock-row {
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12.5px;
}
.lr-mock-row:last-child { border-bottom: none; }
.lr-mock-from { font-weight: 600; min-width: 80px; }
.lr-mock-sub { flex: 1; color: var(--text-muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.lr-mock-code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11.5px;
  font-weight: 700;
  padding: 2px 7px;
  background: var(--code-bg);
  color: var(--code-text);
  border-radius: 4px;
  border: 1px solid var(--code-border);
}

/* hero promo with QR */
.lr-promo-hero {
  margin-top: auto;
  padding: 22px;
  border: 1px solid var(--accent);
  background:
    linear-gradient(135deg,
      oklch(from var(--accent) l c h / 0.08),
      oklch(from var(--accent) l c h / 0.02)),
    var(--bg-elev);
  box-shadow: 0 12px 40px oklch(from var(--accent) l c h / 0.18), 0 1px 2px oklch(0.2 0.02 250 / 0.06);
  position: relative;
  overflow: hidden;
}
.lr-promo-hero::before {
  content: '';
  position: absolute;
  top: -40%; right: -10%;
  width: 240px; height: 240px;
  background: radial-gradient(circle, oklch(from var(--accent) l c h / 0.18), transparent 70%);
  pointer-events: none;
}
.lr-promo-hero .lr-promo-text { position: relative; }
.lr-promo-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-strong);
  margin-bottom: 8px;
}
.lr-promo-eyebrow-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  animation: pulse 1.6s ease-in-out infinite;
}
.lr-promo-hero strong {
  display: block;
  font-size: 18px;
  color: var(--text);
  margin-bottom: 6px;
  letter-spacing: -0.01em;
}
.lr-promo-desc {
  font-size: 13px;
  color: var(--text-muted);
  margin: 0 0 12px;
  line-height: 1.55;
}
.lr-promo-wxname {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  padding: 7px 12px 7px 7px;
  border-radius: 100px;
  background: var(--bg-sunken);
  border: 1px dashed var(--border-strong);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text);
  font-family: 'Inter Tight', -apple-system, sans-serif;
}
.lr-promo-wxname-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 3px 8px;
  background: oklch(0.7 0.17 145);
  color: white;
  border-radius: 100px;
  text-transform: uppercase;
}
.lr-promo-qr {
  flex-shrink: 0;
  background: white;
  padding: 8px 8px 4px;
  border-radius: 12px;
  box-shadow: 0 4px 16px oklch(0.2 0.02 250 / 0.12);
  text-align: center;
  position: relative;
}
.lr-promo-qr img {
  display: block;
  width: 200px;
  height: 200px;
  object-fit: contain;
  border-radius: 6px;
}
.lr-promo-qr-cap {
  font-size: 10.5px;
  font-weight: 600;
  color: oklch(0.4 0.005 250);
  margin-top: 4px;
  letter-spacing: 0.04em;
}

/* promo card on login */
.lr-promo {
  padding: 18px;
  border-radius: var(--r-lg);
  background: var(--bg-elev);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 14px;
}
.lr-promo-text { flex: 1; font-size: 13px; line-height: 1.55; color: var(--text-muted); }
.lr-promo-text strong { display: block; color: var(--text); font-size: 14px; margin-bottom: 4px; }
.lr-promo-tags { display: flex; gap: 4px; flex-wrap: wrap; margin-top: 6px; }
.lr-promo-tags span {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px;
  font-weight: 600;
  padding: 2px 6px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  border-radius: 4px;
}
.lr-promo-wx {
  flex-shrink: 0;
  text-align: center;
  padding: 10px 14px;
  border-radius: 10px;
  background: var(--bg-sunken);
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  font-size: 12.5px;
  border: 1px dashed var(--border-strong);
}
.lr-promo-wx-label {
  font-size: 10px;
  color: var(--text-faint);
  font-family: 'Inter Tight', sans-serif;
  font-weight: 500;
  margin-bottom: 2px;
  letter-spacing: 0.04em;
}

/* ============== Toast / Modal ============== */
.modal-back {
  position: fixed; inset: 0;
  background: oklch(0.2 0.02 250 / 0.4);
  display: grid; place-items: center;
  z-index: 50;
  backdrop-filter: blur(4px);
  animation: fadein 0.18s ease;
}
@keyframes fadein { from { opacity: 0; } to { opacity: 1; } }
@keyframes pop {
  from { opacity: 0; transform: translateY(8px) scale(0.96); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
.modal {
  background: var(--bg-elev);
  border-radius: var(--r-xl);
  width: 420px;
  max-width: calc(100vw - 40px);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  animation: pop 0.22s cubic-bezier(0.2, 0.9, 0.3, 1);
}
.modal-head {
  padding: 22px 24px 12px;
  display: flex;
  align-items: center;
  gap: 14px;
}
.modal-icon {
  width: 42px; height: 42px;
  border-radius: 12px;
  display: grid; place-items: center;
  background: oklch(0.95 0.05 145);
  color: oklch(0.45 0.15 145);
  flex-shrink: 0;
}
[data-theme="dark"] .modal-icon { background: oklch(0.32 0.08 145); color: oklch(0.85 0.13 145); }
.modal-title {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.modal-sub {
  font-size: 12.5px;
  color: var(--text-muted);
  margin-top: 2px;
}
.modal-body {
  padding: 0 24px 8px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--text-muted);
}
.modal-code {
  margin: 14px 0 18px;
  padding: 14px 18px;
  background: var(--bg-sunken);
  border-radius: 10px;
  border: 1px dashed var(--border-strong);
  display: flex;
  align-items: center;
  gap: 14px;
}
.modal-code .mc-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
}
.modal-code .mc-value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.08em;
}
.modal-line {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: oklch(from var(--accent) l c h / 0.06);
  border: 1px solid oklch(from var(--accent) l c h / 0.18);
  color: var(--accent-strong);
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 16px;
}
[data-theme="dark"] .modal-line { color: oklch(0.92 0.05 262); }
.modal-line-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px oklch(from var(--accent) l c h / 0.18);
}
.modal-foot {
  display: flex;
  gap: 10px;
  padding: 10px 24px 22px;
  justify-content: flex-end;
}
.modal-btn {
  padding: 9px 16px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 13px;
  border: 1px solid var(--border-strong);
  background: var(--bg-elev);
  color: var(--text);
}
.modal-btn:hover { background: var(--bg-hover); }
.modal-btn.primary {
  background: var(--accent);
  color: var(--accent-fg);
  border-color: var(--accent);
}
.modal-btn.primary:hover { background: var(--accent-strong); }

/* toast */
.toast {
  position: fixed;
  bottom: 26px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--text);
  color: var(--bg-elev);
  padding: 11px 18px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: var(--shadow-lg);
  z-index: 60;
  animation: toast-in 0.22s ease;
}
@keyframes toast-in {
  from { opacity: 0; transform: translateX(-50%) translateY(8px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* ============== Tweaks panel ============== */
.tweaks-panel {
  position: fixed;
  right: 18px;
  bottom: 18px;
  width: 280px;
  background: var(--bg-elev);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg);
  z-index: 70;
  overflow: hidden;
  font-size: 12.5px;
}
.tweaks-head {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: -0.01em;
}
.tweaks-head .tk-x {
  margin-left: auto;
  width: 22px; height: 22px;
  border-radius: 6px;
  display: grid; place-items: center;
  color: var(--text-faint);
}
.tweaks-head .tk-x:hover { background: var(--bg-hover); color: var(--text); }
.tweaks-body { padding: 12px 14px; display: flex; flex-direction: column; gap: 14px; }
.tk-row { display: flex; flex-direction: column; gap: 6px; }
.tk-label { color: var(--text-muted); font-weight: 500; }
.tk-options { display: flex; gap: 6px; flex-wrap: wrap; }
.tk-opt {
  padding: 5px 10px;
  border: 1px solid var(--border-strong);
  border-radius: 100px;
  background: var(--bg-elev);
  font-size: 11.5px;
  color: var(--text-muted);
  cursor: pointer;
}
.tk-opt.active {
  background: var(--text);
  color: var(--bg-elev);
  border-color: var(--text);
}
.tk-swatch {
  display: inline-flex; align-items: center; gap: 5px;
}
.tk-swatch-dot { width: 10px; height: 10px; border-radius: 50%; }
.tk-toggle {
  display: flex; align-items: center; justify-content: space-between;
  padding: 6px 0;
}
.tk-switch {
  position: relative;
  width: 36px; height: 20px;
  border-radius: 100px;
  background: var(--border-strong);
  transition: background 0.15s;
  cursor: pointer;
}
.tk-switch::after {
  content: '';
  position: absolute;
  top: 2px; left: 2px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: white;
  transition: left 0.15s;
}
.tk-switch.on { background: var(--accent); }
.tk-switch.on::after { left: 18px; }

/* scrollbars */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 100px; border: 2px solid var(--bg); }
::-webkit-scrollbar-thumb:hover { background: var(--text-faint); }
::-webkit-scrollbar-track { background: transparent; }