@import url('https://fonts.googleapis.com/css2?family=Inter:ital,wght@0,400;0,500;0,600;0,700;0,800;1,400&display=swap');

:root {
  --bg: #e8e8df;
  --panel: rgba(246,246,239,0.78);
  --panel-strong: rgba(249,249,242,0.96);
  --ink: #141914;
  --muted: #58604f;
  --line: rgba(35,48,39,0.16);
  --green: #2e6b3f;
  --green-soft: #dce8cd;
  --blue: #315c75;
  --blue-soft: #dce7ed;
  --gold: #9e7132;
  --gold-soft: #efe3c9;
  --rose: #9b4f4d;
  --rose-soft: #efd9d6;
  --shadow: 0 1px 4px rgba(31,38,31,.07), 0 4px 12px rgba(31,38,31,.04);
  --shadow-md: 0 4px 20px rgba(31,38,31,.10), 0 1px 4px rgba(31,38,31,.06);
  --radius: 16px;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

/* ── Nav bar ── */
.csv-bar {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(232,232,223,0.82);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  height: 54px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.csv-brand {
  font-weight: 800;
  font-size: 15px;
  letter-spacing: -.025em;
  color: var(--ink);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 9px;
  flex-shrink: 0;
}

.csv-logo {
  width: 24px;
  height: 24px;
  border-radius: 7px;
  background: var(--green);
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
}

.csv-logo::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,.18) 0%, transparent 60%);
}

.csv-nav {
  display: flex;
  gap: 2px;
}

.csv-nav a {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, sans-serif;
  font-weight: 600;
  font-size: 13.5px;
  color: var(--muted);
  text-decoration: none;
  padding: 6px 13px;
  border-radius: 9px;
  transition: background .15s, color .15s;
  white-space: nowrap;
}

.csv-nav a:hover { background: var(--panel); color: var(--ink); }
.csv-nav a.active { background: var(--green-soft); color: #254220; font-weight: 700; }

@media (max-width: 500px) {
  .csv-bar { padding: 0 16px; }
  .csv-nav a { padding: 6px 9px; font-size: 12.5px; }
}