/* FinTechCo review portal - Stripe-inspired design system */

:root {
  --bg: #f6f9fc;
  --surface: #ffffff;
  --ink: #0a2540;
  --ink-secondary: #425466;
  --accent: #635bff;
  --accent-hover: #5449e0;
  --accent-soft: rgba(99, 91, 255, 0.08);
  --border: #e6ebf1;
  --border-strong: #d5dde6;
  --prio-a: #df1b41;
  --prio-b: #d97706;
  --prio-c: #1a936f;
  --pass: #1a936f;
  --fail: #df1b41;
  --skip: #d97706;
  --code-bg: #f1f4f8;
  --shadow: 0 1px 3px rgba(10, 37, 64, 0.06), 0 1px 2px rgba(10, 37, 64, 0.04);
  --radius: 8px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

[data-theme="dark"] {
  --bg: #0b1523;
  --surface: #16243a;
  --ink: #e6ebf1;
  --ink-secondary: #9aa8bd;
  --accent: #8f88ff;
  --accent-hover: #a49eff;
  --accent-soft: rgba(143, 136, 255, 0.12);
  --border: #24344e;
  --border-strong: #31456a;
  --prio-a: #ff5c7c;
  --prio-b: #f0a13c;
  --prio-c: #3dbf94;
  --pass: #3dbf94;
  --fail: #ff5c7c;
  --skip: #f0a13c;
  --code-bg: #0f1c30;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scrollbar-gutter: stable; overflow-y: scroll; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  font-size: 15px;
  transition: background 0.2s ease, color 0.2s ease;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); text-decoration: underline; }

code, pre { font-family: var(--mono); font-size: 13px; }
code { background: var(--code-bg); padding: 2px 5px; border-radius: 4px; }
pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  overflow-x: auto;
}
pre code { background: none; padding: 0; }

h1, h2, h3, h4 { line-height: 1.3; color: var(--ink); }
h1 { font-size: 26px; font-weight: 700; }
h2 { font-size: 20px; font-weight: 650; margin-top: 2em; }
h3 { font-size: 16px; font-weight: 600; }

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  transition: background 0.2s ease;
}

.header-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 20px;
  height: 58px;
}

.brand {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.3px;
  color: var(--ink);
  white-space: nowrap;
}
.brand:hover { text-decoration: none; color: var(--accent); }

.primary-nav {
  display: flex;
  gap: 4px;
  flex: 1;
  min-width: 0;
  overflow-x: auto;
  scrollbar-width: none;
}
.primary-nav::-webkit-scrollbar { display: none; }

.primary-nav a {
  padding: 6px 12px;
  border-radius: 6px;
  color: var(--ink-secondary);
  font-weight: 500;
  font-size: 14px;
  white-space: nowrap;
}
.primary-nav a:hover { color: var(--ink); background: var(--accent-soft); text-decoration: none; }
.primary-nav a.active { color: var(--accent); background: var(--accent-soft); font-weight: 600; }

.header-utils { position: relative; display: flex; align-items: center; gap: 8px; }

.icon-btn {
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--ink-secondary);
  cursor: pointer;
  padding: 5px 9px;
  font-size: 14px;
  line-height: 1;
}
.icon-btn:hover { color: var(--ink); border-color: var(--border-strong); }

.util-menu {
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 6px 24px rgba(10, 37, 64, 0.12);
  min-width: 170px;
  padding: 6px;
  display: none;
}
.util-menu.open { display: block; }
.util-menu a, .util-menu button {
  display: block;
  width: 100%;
  text-align: left;
  padding: 8px 10px;
  border: none;
  background: none;
  border-radius: 6px;
  color: var(--ink);
  font-size: 14px;
  cursor: pointer;
  font-family: var(--font);
}
.util-menu a:hover, .util-menu button:hover { background: var(--accent-soft); text-decoration: none; }
.util-menu .menu-sep { border-top: 1px solid var(--border); margin: 6px 0; }

/* ---------- Layout ---------- */

.page {
  max-width: 1120px;
  margin: 0 auto;
  padding: 32px 20px 60px;
}
.page.narrow { max-width: 860px; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px 24px;
  margin-bottom: 18px;
}

.muted { color: var(--ink-secondary); }
.small { font-size: 13px; }

/* ---------- Badges ---------- */

.badge {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  line-height: 1.7;
  white-space: nowrap;
}
.badge-a { background: color-mix(in srgb, var(--prio-a) 12%, transparent); color: var(--prio-a); }
.badge-b { background: color-mix(in srgb, var(--prio-b) 14%, transparent); color: var(--prio-b); }
.badge-c { background: color-mix(in srgb, var(--prio-c) 14%, transparent); color: var(--prio-c); }
.badge-pass { background: color-mix(in srgb, var(--pass) 14%, transparent); color: var(--pass); }
.badge-fail { background: color-mix(in srgb, var(--fail) 12%, transparent); color: var(--fail); }
.badge-skip { background: color-mix(in srgb, var(--skip) 14%, transparent); color: var(--skip); }
.badge-neutral { background: var(--accent-soft); color: var(--accent); }
.badge-muted { background: var(--code-bg); color: var(--ink-secondary); }

/* ---------- Buttons and forms ---------- */

.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 9px 18px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  font-family: var(--font);
  transition: background 0.15s ease;
}
.btn:hover { background: var(--accent-hover); color: #fff; text-decoration: none; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-secondary {
  background: var(--surface);
  color: var(--ink);
  border: 1px solid var(--border-strong);
}
.btn-secondary:hover { background: var(--accent-soft); color: var(--ink); }

.btn-sm { padding: 5px 12px; font-size: 13px; }

input[type="text"], input[type="email"], input[type="password"], textarea, select {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  background: var(--surface);
  color: var(--ink);
  font-family: var(--font);
  font-size: 14px;
}
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
label { font-size: 13px; font-weight: 600; color: var(--ink-secondary); display: block; margin-bottom: 5px; }

/* ---------- Tables ---------- */

table { border-collapse: collapse; width: 100%; }
th, td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--border); font-size: 14px; }
th { color: var(--ink-secondary); font-size: 12px; text-transform: uppercase; letter-spacing: 0.4px; }

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--border);
  padding: 22px 20px 30px;
  text-align: center;
  color: var(--ink-secondary);
  font-size: 13px;
}

/* ---------- Docs / markdown ---------- */

.doc-content h1 { border-bottom: 1px solid var(--border); padding-bottom: 10px; }
.doc-content img, .doc-content svg { max-width: 100%; }
.doc-content blockquote {
  border-left: 3px solid var(--accent);
  margin-left: 0;
  padding-left: 16px;
  color: var(--ink-secondary);
}
.mermaid-block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  margin: 18px 0;
  overflow-x: auto;
  text-align: center;
}
.mermaid-block svg { max-width: 100%; height: auto; }

.doc-toc {
  position: sticky;
  top: 78px;
  font-size: 13px;
  max-height: calc(100vh - 100px);
  overflow-y: auto;
}
.doc-toc a { display: block; padding: 3px 0; color: var(--ink-secondary); }
.doc-toc a.active, .doc-toc a:hover { color: var(--accent); }

.docs-layout { display: grid; grid-template-columns: 220px 1fr; gap: 36px; }

/* ---------- Chat ---------- */

.chat-shell { display: flex; flex-direction: column; height: calc(100vh - 210px); min-height: 420px; }
.chat-messages { flex: 1; overflow-y: auto; padding: 6px 2px; }

.msg { max-width: 82%; margin-bottom: 14px; }
.msg-user { margin-left: auto; }
.msg-user .msg-body {
  background: var(--accent);
  color: #fff;
  border-radius: 14px 14px 4px 14px;
  padding: 10px 14px;
}
.msg-assistant .msg-body {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px 14px 14px 4px;
  padding: 10px 16px;
}
.msg-assistant .msg-body p:first-child { margin-top: 4px; }
.msg-assistant .msg-body p:last-child { margin-bottom: 4px; }
.msg-meta { font-size: 11px; color: var(--ink-secondary); margin-top: 4px; }
.model-chip {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  padding: 1px 8px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
}

.thinking { display: inline-flex; gap: 5px; padding: 12px 16px; }
.thinking span {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent);
  animation: pulse 1.2s ease-in-out infinite;
}
.thinking span:nth-child(2) { animation-delay: 0.2s; }
.thinking span:nth-child(3) { animation-delay: 0.4s; }
@keyframes pulse {
  0%, 80%, 100% { opacity: 0.25; transform: scale(0.85); }
  40% { opacity: 1; transform: scale(1.1); }
}

.chat-controls { display: flex; gap: 10px; align-items: center; margin-bottom: 8px; flex-wrap: wrap; }
.chat-input-row { display: flex; gap: 10px; align-items: flex-end; }
.chat-input-row textarea { resize: none; min-height: 44px; max-height: 140px; }

/* ---------- Test suite ---------- */

.summary-chart { display: flex; height: 14px; border-radius: 7px; overflow: hidden; background: var(--code-bg); }
.summary-chart .seg-pass { background: var(--pass); }
.summary-chart .seg-fail { background: var(--fail); }
.summary-chart .seg-skip { background: var(--skip); }

.test-row { border-bottom: 1px solid var(--border); padding: 8px 4px; font-size: 14px; }
.test-log {
  background: var(--code-bg);
  border-radius: 6px;
  padding: 10px 12px;
  margin: 6px 0;
  font-family: var(--mono);
  font-size: 12px;
  white-space: pre-wrap;
  word-break: break-word;
}

details.expandable { border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 10px; background: var(--surface); }
details.expandable > summary {
  cursor: pointer;
  padding: 12px 16px;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
details.expandable > summary::-webkit-details-marker { display: none; }
details.expandable[open] > summary { border-bottom: 1px solid var(--border); }
details.expandable .detail-body { padding: 14px 16px; }

/* ---------- Recommendations ---------- */

.filter-bar { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; align-items: center; }
.filter-chip {
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--ink-secondary);
  border-radius: 999px;
  padding: 4px 13px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  font-family: var(--font);
}
.filter-chip.active { background: var(--accent); border-color: var(--accent); color: #fff; }

.rec-title { font-weight: 600; flex: 1; min-width: 200px; }
.thread { border-top: 1px solid var(--border); margin-top: 14px; padding-top: 12px; }
.comment { padding: 8px 0; border-bottom: 1px dashed var(--border); font-size: 14px; }
.comment .who { font-weight: 600; font-size: 13px; }
.comment .when { color: var(--ink-secondary); font-size: 12px; margin-left: 6px; }

.audit-log { font-size: 13px; color: var(--ink-secondary); }
.audit-log li { margin-bottom: 3px; }

/* ---------- Login ---------- */

.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px; }
.login-card { max-width: 380px; width: 100%; }
.login-card .brand-lg { font-size: 24px; font-weight: 700; letter-spacing: -0.4px; margin-bottom: 4px; }

/* ---------- Mobile ---------- */

.nav-toggle { display: none; }

@media (max-width: 720px) {
  .docs-layout { grid-template-columns: 1fr; }
  .doc-toc { position: static; max-height: none; }
  .header-inner { gap: 10px; }
  .primary-nav a { padding: 6px 9px; font-size: 13px; }
  .msg { max-width: 94%; }
  .card { overflow-x: auto; }
  table { min-width: 0; }
}