/* ============================================================
   TOOLKIT — shared design system
   Palette: blueprint navy, drafting amber, paper white
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=IBM+Plex+Mono:wght@400;500;600&family=Inter:wght@400;500;600&display=swap');

:root {
  --navy-950: #0a1830;
  --navy-900: #0f2244;
  --navy-800: #16305e;
  --navy-700: #1f4080;
  --amber-500: #ff8a1e;
  --amber-400: #ffab52;
  --paper: #f7f5ef;
  --paper-dim: #eae6da;
  --ink: #131a26;
  --ink-soft: #4a5568;
  --line: #d8d2c0;
  --ok: #1f9d6b;
  --radius: 4px;
  --mono: 'IBM Plex Mono', monospace;
  --display: 'Space Grotesk', sans-serif;
  --body: 'Inter', sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.55;
}
h1, h2, h3 { font-family: var(--display); margin: 0 0 .5em; letter-spacing: -0.01em; }
a { color: var(--navy-700); }
.mono { font-family: var(--mono); }

/* --- ruler strip (signature element) --- */
.ruler {
  height: 22px;
  background: var(--navy-950);
  background-image: repeating-linear-gradient(
    90deg,
    var(--amber-500) 0 1px,
    transparent 1px 40px
  );
  background-position: 0 100%;
}

/* --- top nav --- */
.nav {
  background: var(--navy-950);
  color: var(--paper);
  padding: 18px 24px;
}
.nav-inner {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.brand {
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--paper);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
}
.brand .dot { color: var(--amber-500); }
.nav-links { display: flex; gap: 20px; flex-wrap: wrap; }
.nav-links a {
  color: var(--paper-dim);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
}
.nav-links a:hover { color: var(--amber-400); }

/* --- containers --- */
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
.tool-wrap { max-width: 720px; margin: 0 auto; padding: 0 24px; }

/* --- hero --- */
.hero {
  background: var(--navy-900);
  color: var(--paper);
  padding: 64px 0 56px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 36px 36px;
  pointer-events: none;
}
.hero-inner { position: relative; }
.eyebrow {
  font-family: var(--mono);
  color: var(--amber-400);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.hero h1 { font-size: clamp(2rem, 4.5vw, 3rem); max-width: 720px; }
.hero p { color: var(--paper-dim); max-width: 560px; font-size: 1.05rem; }

/* --- tool grid --- */
.section { padding: 48px 0; }
.section-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 22px; }
.section-head h2 { font-size: 1.4rem; }
.count-tag {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--ink-soft);
}
.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 14px;
}
.tool-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  text-decoration: none;
  color: var(--ink);
  display: block;
  transition: border-color .15s, transform .15s;
  position: relative;
}
.tool-card:hover { border-color: var(--amber-500); transform: translateY(-2px); }
.tool-card .num {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--amber-500);
  display: block;
  margin-bottom: 10px;
}
.tool-card h3 { font-size: 1.05rem; margin-bottom: 6px; }
.tool-card p { font-size: 0.87rem; color: var(--ink-soft); margin: 0; }

/* --- tool page chrome --- */
.tool-header { padding: 40px 0 24px; background: var(--paper-dim); border-bottom: 1px solid var(--line); }
.breadcrumb { font-family: var(--mono); font-size: 0.78rem; color: var(--ink-soft); text-decoration: none; }
.tool-header h1 { font-size: 1.9rem; margin-top: 10px; }
.tool-header .desc { color: var(--ink-soft); max-width: 620px; }

.panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  margin: 28px 0;
}
label { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 6px; color: var(--ink); }
input[type=text], input[type=number], input[type=date], select, textarea {
  width: 100%;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-family: var(--body);
  font-size: 0.95rem;
  background: var(--paper);
  color: var(--ink);
}
textarea { resize: vertical; min-height: 140px; font-family: var(--mono); }
input:focus, select:focus, textarea:focus, button:focus {
  outline: 2px solid var(--amber-500);
  outline-offset: 1px;
}
.field { margin-bottom: 16px; }
.row { display: flex; gap: 12px; flex-wrap: wrap; }
.row > * { flex: 1; min-width: 140px; }

button, .btn {
  background: var(--navy-900);
  color: var(--paper);
  border: none;
  padding: 12px 22px;
  border-radius: var(--radius);
  font-family: var(--body);
  font-weight: 600;
  font-size: 0.92rem;
  cursor: pointer;
  transition: background .15s;
}
button:hover, .btn:hover { background: var(--navy-700); }
button.secondary { background: transparent; color: var(--navy-900); border: 1px solid var(--line); }
button.secondary:hover { background: var(--paper-dim); }

.result {
  margin-top: 18px;
  padding: 18px;
  background: var(--navy-950);
  color: var(--paper);
  border-radius: var(--radius);
  font-family: var(--mono);
}
.result .big { font-size: 1.6rem; color: var(--amber-400); font-weight: 600; }
.result .small { font-size: 0.8rem; color: var(--paper-dim); margin-top: 4px; }

.stat-row { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 14px; }
.stat { background: var(--paper-dim); border-radius: var(--radius); padding: 12px 16px; min-width: 100px; }
.stat .n { font-family: var(--mono); font-size: 1.3rem; font-weight: 600; color: var(--navy-900); }
.stat .l { font-size: 0.75rem; color: var(--ink-soft); text-transform: uppercase; letter-spacing: 0.04em; }

/* --- content / SEO body copy --- */
.content { padding: 8px 0 40px; }
.content h2 { font-size: 1.3rem; margin-top: 32px; }
.content p { color: var(--ink-soft); }

.faq-item { border-top: 1px solid var(--line); padding: 16px 0; }
.faq-item:last-child { border-bottom: 1px solid var(--line); }
.faq-item h3 { font-size: 1rem; margin-bottom: 6px; }
.faq-item p { color: var(--ink-soft); margin: 0; font-size: 0.92rem; }

/* --- footer --- */
footer {
  background: var(--navy-950);
  color: var(--paper-dim);
  padding: 32px 0;
  margin-top: 40px;
}
footer .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: 0.85rem; }
footer a { color: var(--paper-dim); }

@media (max-width: 640px) {
  .hero { padding: 44px 0 36px; }
  .panel { padding: 20px; }
}