:root {
  --bg: #0f1117;
  --bg-card: #171a23;
  --text: #f2f3f5;
  --muted: #9aa0ac;
  --accent: #6c5ce7;
  --accent-2: #00d1b2;
  --border: #2a2e3a;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 6vw;
  border-bottom: 1px solid var(--border);
}

.brand { color: var(--text); text-decoration: none; font-weight: 700; font-size: 1.2rem; }
.brand span { color: var(--accent-2); }

.nav nav a { color: var(--muted); text-decoration: none; margin-left: 24px; }

main { padding: 0 6vw 60px; max-width: 1100px; margin: 0 auto; }

.hero { text-align: center; padding: 80px 0 40px; }
.hero h1 { font-size: clamp(1.8rem, 4vw, 3rem); margin-bottom: 16px; }
.subtitle { color: var(--muted); max-width: 620px; margin: 0 auto 32px; }

.cta, .cta-small {
  display: inline-block;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: white;
  text-decoration: none;
  border: none;
  padding: 14px 28px;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  font-size: 1rem;
}
.cta-small { padding: 10px 18px; font-size: 0.9rem; }
.cta-small.secondary { background: transparent; border: 1px solid var(--border); color: var(--text); }

.note { color: var(--muted); font-size: 0.85rem; margin-top: 16px; }

.section { padding: 50px 0; border-top: 1px solid var(--border); }
.section.narrow { max-width: 640px; margin: 0 auto; }

.grid3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; margin-top: 24px; }

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
}
.card.highlight { border-color: var(--accent-2); }
.card h3 { margin-top: 0; }
.card .price { font-size: 1.8rem; font-weight: 700; margin: 8px 0; }
.card .price span { font-size: 1rem; color: var(--muted); font-weight: 400; }
.card form { display: flex; flex-direction: column; gap: 10px; margin-top: 12px; }
.card input { padding: 10px; border-radius: 6px; border: 1px solid var(--border); background: #0f1117; color: var(--text); }

.steps { color: var(--muted); }
.steps li { margin-bottom: 8px; }

.proposal-form { display: flex; flex-direction: column; gap: 16px; margin-top: 24px; }
.proposal-form label { display: flex; flex-direction: column; gap: 6px; font-size: 0.9rem; color: var(--muted); }
.proposal-form input, .proposal-form textarea, .proposal-form select {
  padding: 12px; border-radius: 8px; border: 1px solid var(--border); background: var(--bg-card); color: var(--text); font-size: 1rem;
}
.proposal-form textarea { min-height: 80px; }

.proposal-output {
  background: #ffffff;
  color: #1a1a1a;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  margin-top: 20px;
  font-family: Georgia, 'Times New Roman', serif;
  line-height: 1.55;
}
.proposal-output h2 { font-size: 1.25rem; margin: 1.4em 0 0.5em; }
.proposal-output h3 { font-size: 1.05rem; }
.doc-prose h1, .doc-prose h2 { color: var(--accent, #14162b); font-size: 1.25rem; margin: 1.4em 0 0.5em; }
.doc-prose h3 { font-size: 1.05rem; margin: 1em 0 0.4em; }
.proposal-output p { margin: 0 0 1em; }
.proposal-output ul, .proposal-output ol { margin: 0 0 1em; padding-left: 1.4em; }
.doc-prose table { border-collapse: collapse; width: 100%; margin: 1em 0; }
.doc-prose th, .doc-prose td { border: 1px solid #ddd; padding: 8px 12px; text-align: left; }

.actions { display: flex; gap: 12px; margin-top: 20px; flex-wrap: wrap; }

.flash { background: #3d2c00; color: #ffd166; padding: 14px 6vw; }

.error-box {
  background: #3d1414; border: 1px solid #7a2b2b; color: #ffb3b3;
  border-radius: 12px; padding: 24px; margin-top: 20px;
}
.error-box .note { color: #e0a3a3; }

.loading-overlay {
  display: none;
  position: fixed; inset: 0; background: rgba(15, 17, 23, 0.92);
  z-index: 100; align-items: center; justify-content: center;
}
.loading-overlay.visible { display: flex; }
.loading-box { text-align: center; }
.spinner {
  width: 48px; height: 48px; margin: 0 auto 20px;
  border: 4px solid var(--border); border-top-color: var(--accent-2);
  border-radius: 50%; animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.footer { text-align: center; color: var(--muted); padding: 30px; font-size: 0.85rem; border-top: 1px solid var(--border); }
.footer a { color: var(--muted); }

/* nav */
.nav nav { display: flex; align-items: center; gap: 20px; }
.nav nav a { margin-left: 0; }
.inline-form { display: inline; margin: 0; }
.link-button { background: none; border: none; color: var(--muted); font: inherit; cursor: pointer; padding: 0; }
.link-button:hover { color: var(--text); }
a { color: var(--accent-2); }

/* forms */
.info-box { background: #14263a; border: 1px solid #2b4a6b; color: #cfe3f7; border-radius: 12px; padding: 16px 20px; margin: 16px 0; }
.info-box a { color: #8fd3ff; }
.form-details { border: 1px solid var(--border); border-radius: 8px; padding: 12px 16px; display: flex; flex-direction: column; gap: 14px; }
.form-details summary { cursor: pointer; color: var(--muted); font-size: 0.9rem; }
.form-details[open] summary { margin-bottom: 8px; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; }
.checkbox-label { flex-direction: row !important; align-items: flex-start; gap: 10px !important; color: var(--text) !important; }
.checkbox-label input { margin-top: 4px; }
.color-input { width: 80px; height: 44px; padding: 4px !important; }
.logo-preview { max-height: 60px; max-width: 200px; background: #fff; padding: 6px; border-radius: 6px; align-self: flex-start; }
.proposal-form.compact { margin-top: 8px; gap: 10px; }

/* proposal detail */
.proposal-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 28px; align-items: start; }
.proposal-main .proposal-output { margin-top: 0; }
.proposal-side { display: flex; flex-direction: column; gap: 16px; position: sticky; top: 16px; }
.side-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px; padding: 16px; }
.side-card .actions { margin-top: 10px; }
.side-label { margin: 0 0 6px; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 1px; color: var(--muted); }
.share-input { width: 100%; padding: 8px; border-radius: 6px; border: 1px solid var(--border); background: var(--bg); color: var(--text); font-size: 0.85rem; }
.status { display: inline-block; margin: 0; font-weight: 600; }
.status-created { color: var(--muted); }
.status-viewed { color: #ffd166; }
.status-accepted { color: var(--accent-2); }
.status-superseded { color: var(--muted); text-decoration: line-through; }
.version-list { margin: 0; padding-left: 1.2em; }
.version-list li { margin-bottom: 4px; }
@media (max-width: 860px) {
  .proposal-layout { grid-template-columns: 1fr; }
  .proposal-side { position: static; }
}

/* history */
.history-table { width: 100%; border-collapse: collapse; margin-top: 20px; }
.history-table th, .history-table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); }
.history-table th { color: var(--muted); font-weight: 500; font-size: 0.85rem; }

/* public share page */
.share-page { max-width: 860px; margin: 0 auto; }
.share-actions { justify-content: flex-end; }
.accept-form { background: var(--bg-card); border: 1px solid var(--accent-2); border-radius: 12px; padding: 24px; margin-top: 28px; }
.accept-form h2 { margin: 0; }
.legal-note { font-size: 0.8rem; }
.accepted-box { background: #0f2e27; border: 1px solid var(--accent-2); border-radius: 12px; padding: 20px 24px; margin-top: 28px; }
.accepted-box .note { margin: 4px 0; word-break: break-all; }

/* misc */
.faq { border-bottom: 1px solid var(--border); padding: 14px 0; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq p { color: var(--muted); margin: 10px 0 0; }
.loading-box.inline { padding: 60px 0; }