/* Portal Estimator — minimal, clean, mobile-friendly. */

:root {
  --bg: #f4f6f9;
  --card: #ffffff;
  --ink: #1a2733;
  --ink-muted: #5a6a7a;
  --line: #e3e8ef;
  --accent: #0d6efd;
  --accent-ink: #ffffff;
  --error: #c33;
  --ok: #28a745;
  --shadow: 0 1px 2px rgba(13, 34, 53, 0.06), 0 4px 16px rgba(13, 34, 53, 0.06);
  --radius: 10px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0; min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

.topbar {
  background: #0d2235;
  color: #fff;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  border-bottom: 3px solid #0a1a2a;
}
.brand-name {
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.4px;
  display: block;
}
.brand-sub {
  display: block;
  font-size: 12px;
  opacity: 0.75;
}

.steps {
  margin-left: auto;
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  font-size: 13px;
}
.step {
  padding: 4px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.6);
  min-width: 60px;
  text-align: center;
}
.step.active {
  background: var(--accent);
  color: #fff;
}
.step.done {
  background: rgba(40, 167, 69, 0.4);
  color: #fff;
}

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 20px 96px;
}

h1 {
  margin: 0 0 8px;
  font-size: 28px;
  font-weight: 700;
}
h2 {
  margin: 16px 0 8px;
  font-size: 18px;
}
.lead {
  color: var(--ink-muted);
  margin: 0 0 20px;
}

.card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
  margin-bottom: 16px;
}

.hidden { display: none !important; }

.field {
  display: block;
  margin-bottom: 16px;
}
.field > span {
  display: block;
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 6px;
}
input[type="text"], input[type="password"], input[type="search"], input[type="number"], textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font: inherit;
  background: #fff;
  color: var(--ink);
  outline-offset: 2px;
}
input:focus, textarea:focus {
  border-color: var(--accent);
  outline: 2px solid rgba(13, 110, 253, 0.2);
}

.btn {
  display: inline-block;
  padding: 10px 20px;
  border-radius: 8px;
  border: 1px solid transparent;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.05s, box-shadow 0.1s;
}
.btn:active { transform: translateY(1px); }
.btn.primary {
  background: var(--accent);
  color: var(--accent-ink);
}
.btn.ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 16px;
}
.sticky-actions {
  position: sticky;
  bottom: 0;
  background: linear-gradient(transparent, var(--bg) 30%);
  padding-top: 16px;
}

.error {
  color: var(--error);
  margin: 12px 0 0;
  min-height: 1.5em;
}

.dropzone {
  border: 2px dashed var(--line);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.dropzone:hover, .dropzone.dragover {
  border-color: var(--accent);
  background: rgba(13, 110, 253, 0.04);
}
.dropzone p { margin: 4px 0; }
.muted { color: var(--ink-muted); font-size: 14px; }

.upload-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
}
.upload-list li {
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  margin-bottom: 8px;
  background: #fafbfc;
}
.upload-list .file-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.upload-list .file-name { font-weight: 600; word-break: break-all; }
.upload-list .file-meta { color: var(--ink-muted); font-size: 13px; }
.upload-list .titleblock {
  margin-top: 8px;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 12px;
  color: var(--ink-muted);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 8px;
  max-height: 6em;
  overflow: auto;
  white-space: pre-wrap;
}

.upload-list .status-uploading { color: var(--accent); }
.upload-list .status-done { color: var(--ok); }
.upload-list .status-error { color: var(--error); }

.filter-bar {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 12px;
  padding: 12px 16px;
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 5;
}
.filter-bar input { flex: 1; }
.running-total {
  font-weight: 700;
  white-space: nowrap;
}

.trades-container details {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 12px;
  overflow: hidden;
}
.trades-container details summary {
  cursor: pointer;
  padding: 14px 18px;
  font-weight: 700;
  list-style: none;
  display: flex;
  justify-content: space-between;
  background: #f8fafc;
}
.trades-container details summary::-webkit-details-marker { display: none; }
.trades-container details summary::after {
  content: "▸";
  transition: transform 0.15s;
}
.trades-container details[open] summary::after { transform: rotate(90deg); }

.stamp-row {
  display: grid;
  grid-template-columns: 1fr 50px 100px;
  align-items: center;
  gap: 12px;
  padding: 10px 18px;
  border-top: 1px solid var(--line);
  font-size: 14px;
}
.stamp-row .name { font-weight: 500; }
.stamp-row .unit {
  font-size: 11px;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  text-align: center;
}
.stamp-row input[type="number"] {
  text-align: right;
  padding: 6px 10px;
  font-variant-numeric: tabular-nums;
}
/* Hide native number-spinners — visual noise on the public form. */
.stamp-row input[type="number"]::-webkit-outer-spin-button,
.stamp-row input[type="number"]::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.stamp-row input[type="number"] { -moz-appearance: textfield; }
.stamp-row.hidden-by-filter { display: none; }

.kv {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 8px 24px;
  margin: 0;
}
.kv dt { color: var(--ink-muted); font-weight: 500; }
.kv dd { margin: 0; font-weight: 600; }
.kv dd.big { font-size: 24px; color: var(--accent); }

.disclaimer {
  margin: 16px 0 0;
  padding: 12px 16px;
  background: rgba(255, 193, 7, 0.1);
  border-left: 4px solid #ffc107;
  border-radius: 4px;
  font-size: 14px;
  color: #6c5510;
}

.big-total {
  font-size: 36px;
  font-weight: 800;
  color: var(--accent);
  margin: 0 0 8px;
  text-align: center;
}

@media (max-width: 600px) {
  .stamp-row {
    grid-template-columns: 1fr 40px 80px;
    gap: 8px;
    padding: 10px 14px;
  }
}