/* Shared design tokens and base components for all forseo.top/web tools.
   Ported from sc-traffic-data-parser/design.md (BMW palette) and
   static/index.html. Keep in sync across tools by editing only here. */

:root {
  --bg: #000000;
  --bg-2: #0b0c0e;
  --surface: #141619;
  --surface-2: #1b1f24;
  --border: rgba(168, 176, 188, 0.16);
  --border-strong: rgba(168, 176, 188, 0.30);
  --text: #ffffff;
  --text-muted: #a8b0bc;
  --text-dim: #6b727c;
  --accent: #1c69d4;
  --accent-hover: #3a82e8;
  --accent-soft: rgba(28, 105, 212, 0.14);
  --on-accent: #ffffff;
  --success: #46b17e;
  --success-soft: rgba(70, 177, 126, 0.12);
  --danger: #e5533d;
  --danger-soft: rgba(229, 83, 61, 0.12);
}

html, body { margin: 0; padding: 0; background: var(--bg); }
body {
  font-family: 'Inter', -apple-system, sans-serif;
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}
#root, #app { min-height: 100vh; }

.app { font-family: 'Inter', -apple-system, sans-serif; color: var(--text); background: var(--bg); min-height: 100vh; letter-spacing: normal; }
.app * { box-sizing: border-box; }
.app ::selection { background: var(--accent); color: #fff; }
.mono { font-variant-numeric: tabular-nums; letter-spacing: 0; }

.container { max-width: 920px; margin: 0 auto; padding: 56px 28px 80px; }

.header {
  display: flex; align-items: baseline; justify-content: space-between;
  margin-bottom: 56px; padding-bottom: 24px; border-bottom: 1px solid var(--border);
  flex-wrap: wrap; gap: 16px;
}
.brand h1 {
  font-weight: 700; font-size: 40px; line-height: 1.05; margin: 0;
  color: var(--text); letter-spacing: -0.02em;
}
.brand h1 .accent { color: var(--accent); }
.brand p { font-size: 13px; color: var(--text-muted); margin: 10px 0 0; letter-spacing: 0; }
.header-meta {
  font-variant-numeric: tabular-nums; font-size: 11px; color: var(--text-dim);
  text-align: right; text-transform: uppercase; letter-spacing: 0.1em;
}

/* Auth widget, shared across hub and every tool */
.auth-widget { display: flex; align-items: center; gap: 10px; font-size: 12.5px; color: var(--text-muted); }
.auth-widget .email { color: var(--text); font-weight: 600; }

.panel {
  background: var(--surface); border: 1px solid var(--border); border-radius: 4px;
  padding: 24px 28px; margin-bottom: 16px; position: relative;
}
.panel-header {
  display: flex; align-items: baseline; gap: 14px;
  margin-bottom: 24px; padding-bottom: 16px; border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.panel-title { font-size: 16px; font-weight: 600; letter-spacing: -0.01em; color: var(--text); flex: 1; }

.help-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 17px; height: 17px; margin-left: 7px;
  background: transparent; border: 1px solid var(--border-strong); border-radius: 2px;
  color: var(--text-muted); cursor: pointer; padding: 0;
  transition: all 0.15s; vertical-align: -3px;
}
.help-btn:hover { color: var(--accent); border-color: var(--accent); }
.help-btn.active { color: var(--on-accent); background: var(--accent); border-color: var(--accent); }
.help-popover {
  margin-top: 4px; margin-bottom: 18px;
  background: var(--surface-2); border: 1px solid var(--border-strong); border-left: 3px solid var(--accent);
  border-radius: 2px; padding: 16px 18px;
  font-size: 13px; line-height: 1.6; color: var(--text);
  animation: helpfade 0.18s ease-out;
}
@keyframes helpfade { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: translateY(0); } }
.help-popover-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 12px; padding-bottom: 10px; border-bottom: 1px solid var(--border);
}
.help-popover-header span { font-weight: 600; font-size: 15px; color: var(--text); line-height: 1; letter-spacing: -0.01em; }
.help-popover-close { background: transparent; border: 0; color: var(--text-muted); cursor: pointer; padding: 4px; display: inline-flex; align-items: center; border-radius: 2px; }
.help-popover-close:hover { color: var(--text); background: var(--bg-2); }
.help-popover-body { color: var(--text); font-size: 12.5px; line-height: 1.65; }
.help-popover-body ol { margin: 8px 0; padding-left: 22px; }
.help-popover-body li { margin-bottom: 7px; }
.help-popover-body li:last-child { margin-bottom: 0; }
.help-popover-body p { margin: 0 0 10px 0; }
.help-popover-body p:last-child { margin-bottom: 0; }
.help-popover-body code { font-variant-numeric: tabular-nums; background: var(--bg); padding: 1px 7px; border-radius: 2px; font-size: 11.5px; color: var(--text); border: 1px solid var(--border); }
.help-popover-body a { color: var(--accent); text-decoration: none; border-bottom: 1px solid rgba(28, 105, 212, 0.4); }
.help-popover-body a:hover { color: var(--accent-hover); border-bottom-color: var(--accent-hover); }
.help-popover-body .divider { height: 1px; background: var(--border); margin: 12px 0; }
.help-popover-body strong { color: var(--text); font-weight: 600; }
.panel-aside { font-variant-numeric: tabular-nums; font-size: 11px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.08em; }

.field { display: block; margin-bottom: 16px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.field-row.single { grid-template-columns: 1fr; }
.label { display: block; font-size: 11px; font-weight: 600; color: var(--text-muted); margin-bottom: 8px; letter-spacing: 0.1em; text-transform: uppercase; }
.label-hint { text-transform: none; letter-spacing: 0; color: var(--text-dim); font-weight: 400; margin-left: 8px; font-size: 11px; }
.label-hint a { color: var(--accent); text-decoration: none; border-bottom: 1px solid rgba(28, 105, 212, 0.3); }
.label-hint a:hover { color: var(--accent-hover); border-bottom-color: var(--accent-hover); }

.input, .select, .date-input {
  width: 100%; background: var(--bg-2); border: 1px solid var(--border); border-radius: 2px;
  color: var(--text); padding: 10px 12px; font-size: 13.5px; font-family: inherit;
  transition: border-color 0.15s, background 0.15s; outline: none;
}
.input.mono, .date-input { font-variant-numeric: tabular-nums; font-size: 12.5px; }
.input:focus, .select:focus, .date-input:focus { border-color: var(--accent); background: var(--surface-2); }
.input::placeholder { color: var(--text-dim); }

.select {
  cursor: pointer; appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--text-muted) 50%), linear-gradient(135deg, var(--text-muted) 50%, transparent 50%);
  background-position: calc(100% - 16px) 50%, calc(100% - 11px) 50%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  padding-right: 32px;
}

.btn {
  display: inline-flex; align-items: center; gap: 7px;
  background: var(--surface-2); color: var(--text);
  border: 1px solid var(--border-strong); padding: 8px 14px; border-radius: 2px;
  font-size: 12.5px; font-weight: 600; cursor: pointer; font-family: inherit;
  transition: all 0.15s;
}
.btn:hover { background: var(--surface); border-color: var(--text-dim); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-primary { background: var(--accent); color: var(--on-accent); border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.btn-danger { background: var(--danger-soft); color: var(--danger); border-color: rgba(229, 83, 61, 0.32); }
.btn-danger:hover { background: rgba(229, 83, 61, 0.2); border-color: var(--danger); }
.btn-ghost { background: transparent; border-color: var(--border); color: var(--text-muted); }
.btn-ghost:hover { color: var(--text); border-color: var(--border-strong); }
.btn-large { width: 100%; padding: 14px 20px; font-size: 14px; justify-content: center; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { background: var(--bg-2); color: var(--text-muted); border: 1px solid var(--border); padding: 7px 14px; border-radius: 2px; font-size: 12.5px; cursor: pointer; font-family: inherit; transition: all 0.15s; }
.chip:hover { border-color: var(--border-strong); color: var(--text); }
.chip.active { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }

.mode-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.mode-card { text-align: left; display: flex; flex-direction: column; gap: 6px; background: var(--bg-2); border: 1px solid var(--border); border-radius: 2px; padding: 16px 18px; cursor: pointer; font-family: inherit; transition: all 0.15s; }
.mode-card:hover { border-color: var(--border-strong); }
.mode-card.active { background: var(--accent-soft); border-color: var(--accent); }
.mode-card-title { font-size: 14px; font-weight: 600; color: var(--text); }
.mode-card.active .mode-card-title { color: var(--accent); }
.mode-card-desc { font-size: 11.5px; color: var(--text-muted); line-height: 1.5; }
.hint { margin-top: 12px; font-size: 11.5px; color: var(--text-dim); line-height: 1.55; }
.hint code { font-variant-numeric: tabular-nums; background: var(--bg); padding: 0 5px; border-radius: 2px; color: var(--text); border: 1px solid var(--border); }

.editor { display: flex; border: 1px solid var(--border); border-radius: 2px; background: var(--bg-2); overflow: hidden; font-variant-numeric: tabular-nums; font-size: 12.5px; line-height: 1.55; position: relative; }
.editor:focus-within { border-color: var(--accent); }
.linenums { background: var(--bg); color: var(--text-dim); padding: 12px 12px 12px 16px; text-align: right; user-select: none; min-width: 52px; overflow: hidden; border-right: 1px solid var(--border); font-size: 11.5px; line-height: 1.55; min-height: 280px; max-height: 480px; }
.linenums div { height: calc(1.55 * 12.5px); }
.editor textarea { flex: 1; background: transparent; border: 0; outline: 0; color: var(--text); padding: 12px 14px; resize: vertical; font-family: inherit; font-size: inherit; line-height: 1.55; min-height: 280px; max-height: 480px; }
.editor textarea::placeholder { color: var(--text-dim); }

.date-summary { display: inline-flex; align-items: center; gap: 12px; margin-top: 16px; padding: 8px 14px; background: var(--bg-2); border: 1px solid var(--border); border-radius: 2px; font-variant-numeric: tabular-nums; font-size: 12px; color: var(--text-muted); }
.date-summary .arrow { color: var(--accent); }
.date-summary .note { color: var(--text-dim); font-size: 11px; }

.compare-block { margin-top: 24px; padding-top: 20px; border-top: 1px dashed var(--border); }
.compare-block .date-summary { margin-top: 14px; }

.alert { margin-top: 16px; padding: 12px 16px; border-radius: 2px; font-size: 13px; display: flex; align-items: flex-start; gap: 10px; line-height: 1.5; }
.alert-info { background: var(--accent-soft); border: 1px solid rgba(28, 105, 212, 0.28); color: var(--accent); }
.alert-error { background: var(--danger-soft); border: 1px solid rgba(229, 83, 61, 0.32); color: var(--danger); }
.alert-success { background: var(--success-soft); border: 1px solid rgba(70, 177, 126, 0.32); color: var(--success); }
.alert-success .meta { display: block; margin-top: 4px; font-variant-numeric: tabular-nums; font-size: 11px; color: rgba(70, 177, 126, 0.7); }

.project-row { display: flex; align-items: center; gap: 10px; margin-bottom: 24px; padding-bottom: 20px; border-bottom: 1px dashed var(--border); flex-wrap: wrap; }
.project-row .select { flex: 1; max-width: 320px; }
.confirm-pop { margin-top: 12px; padding: 12px 14px; background: var(--danger-soft); border: 1px solid rgba(229, 83, 61, 0.32); border-radius: 2px; display: flex; align-items: center; gap: 12px; font-size: 13px; color: var(--danger); flex-wrap: wrap; }
.confirm-pop button { padding: 5px 12px; font-size: 12px; }
.url-count { font-variant-numeric: tabular-nums; font-size: 11px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.08em; }
.url-count strong { color: var(--text); font-weight: 600; }
.footer { margin-top: 40px; text-align: center; font-variant-numeric: tabular-nums; font-size: 10.5px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.12em; }
@keyframes spin { from { transform: rotate(0); } to { transform: rotate(360deg); } }
.spin { animation: spin 1s linear infinite; }

/* Progress bar (new vs. the Python version) */
.progress { margin-top: 16px; }
.progress-bar { height: 6px; background: var(--bg-2); border: 1px solid var(--border); border-radius: 3px; overflow: hidden; }
.progress-bar-fill { height: 100%; background: var(--accent); transition: width 0.2s ease; }
.progress-label { margin-top: 8px; font-size: 11.5px; color: var(--text-dim); display: flex; justify-content: space-between; gap: 12px; }

/* Hub cards */
.tool-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.tool-card { display: block; text-decoration: none; background: var(--surface); border: 1px solid var(--border); border-radius: 4px; padding: 22px 24px; transition: all 0.15s; position: relative; }
.tool-card:hover { border-color: var(--border-strong); background: var(--surface-2); }
.tool-card.disabled { opacity: 0.55; cursor: not-allowed; pointer-events: none; }
.tool-card-title { font-size: 16px; font-weight: 600; color: var(--text); margin: 0 0 8px; }
.tool-card-desc { font-size: 12.5px; color: var(--text-muted); line-height: 1.55; margin: 0; }
.tool-card-status { position: absolute; top: 20px; right: 20px; font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; padding: 3px 8px; border-radius: 2px; }
.tool-card-status.ready { background: var(--success-soft); color: var(--success); }
.tool-card-status.in-development { background: var(--danger-soft); color: var(--danger); }

@media (max-width: 640px) {
  .container { padding: 32px 18px; }
  .panel { padding: 22px 20px; }
  .field-row { grid-template-columns: 1fr; }
  .mode-cards { grid-template-columns: 1fr; }
  .tool-grid { grid-template-columns: 1fr; }
  .brand h1 { font-size: 32px; }
}