:root {
  --bg: #f5efe4;
  --bg-muted: #fdf9f2;
  --ink: #1f2328;
  --ink-muted: #5f5b55;
  --ink-soft: #7c766f;
  --accent: #0f766e;
  --accent-strong: #0b5f59;
  --accent-warm: #f97316;
  --card: #ffffff;
  --border: #e6ddcf;
  --shadow: 0 18px 40px rgba(15, 23, 42, 0.08);
  --radius: 18px;
  --radius-sm: 12px;
  --max-width: 1200px;
  --font-display: "Space Grotesk", "Satoshi", "Avenir Next", sans-serif;
  --font-body: "Manrope", "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", monospace;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: radial-gradient(circle at top, #fff8eb 0%, var(--bg) 60%, #efe6d7 100%);
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: radial-gradient(rgba(15, 118, 110, 0.08) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
  opacity: 0.35;
}

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

a:hover {
  color: var(--accent-strong);
}

img {
  max-width: 100%;
  display: block;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  margin: 0 0 0.6em;
}

p {
  margin: 0 0 1em;
  color: var(--ink-muted);
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(12px);
  background: rgba(253, 249, 242, 0.92);
  border-bottom: 1px solid var(--border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  color: var(--ink);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand-text {
  font-family: var(--font-display);
}

.nav {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.nav a {
  padding: 8px 14px;
  border-radius: 999px;
  color: var(--ink-soft);
  font-weight: 600;
  font-size: 0.92rem;
  background: transparent;
  transition: all 0.2s ease;
}

.nav a:hover {
  color: var(--ink);
  background: var(--bg-muted);
}

.nav .nav-cta {
  background: var(--accent);
  color: #fff;
  border: 1px solid var(--accent);
}

.nav .nav-cta:hover {
  background: var(--accent-strong);
  color: #fff;
}

main {
  padding: 48px 0 64px;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 32px 0 40px;
  background: var(--bg-muted);
}

.site-footer .container {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--ink-soft);
}

.hero {
  text-align: center;
  padding: 48px 0 36px;
}

.hero-eyebrow {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--accent);
  font-weight: 700;
}

.hero h1 {
  font-size: clamp(2.5rem, 4vw, 3.6rem);
}

.hero .subtitle {
  max-width: 700px;
  margin: 0 auto 24px;
  font-size: 1.1rem;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.section-block {
  margin-top: 48px;
}

.section-header {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 24px;
}

.section-title {
  font-size: 1.6rem;
}

.meta {
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.lede {
  font-size: 1.05rem;
  color: var(--ink-muted);
}

.grid {
  display: grid;
  gap: 20px;
}

.grid-5 {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}

.card h3 {
  margin-bottom: 8px;
}

.category-card {
  text-align: left;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.category-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(15, 23, 42, 0.12);
}

.tag {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: rgba(15, 118, 110, 0.12);
  color: var(--accent-strong);
  font-weight: 700;
}

.btn {
  border: 1px solid transparent;
  padding: 12px 20px;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.2s ease;
}

.btn-primary {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

.btn-primary:hover {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
}

.btn-secondary {
  background: var(--bg-muted);
  color: var(--ink);
  border-color: var(--border);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.tools-controls {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin: 24px 0;
}

.search-box input,
.tools-controls select {
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: white;
  font-size: 0.95rem;
  min-width: 220px;
}

.results-meta {
  margin-bottom: 16px;
  color: var(--ink-soft);
}

.tool-page {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.tool-header .tool-kicker {
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 700;
}

.tool-area {
  background: var(--bg-muted);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.tool-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.fields-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.field label {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
}

.field input,
.field textarea,
.field select {
  width: 100%;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  font-size: 0.95rem;
}

.tool-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.tool-result {
  margin-top: 16px;
}

.tool-error {
  color: #b91c1c;
  font-weight: 600;
  margin-bottom: 10px;
}

.result-text,
.result-code {
  background: #0f172a;
  color: #f8fafc;
  padding: 16px;
  border-radius: 12px;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  white-space: pre-wrap;
}

.result-table {
  width: 100%;
  border-collapse: collapse;
  background: white;
  border-radius: 12px;
  overflow: hidden;
}

.result-table th,
.result-table td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}

.result-table th {
  background: var(--bg-muted);
  width: 40%;
}

.result-list {
  margin: 0;
  padding-left: 20px;
}

.result-image {
  max-width: 100%;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: white;
}

.color-picker {
  display: grid;
  gap: 16px;
}

.color-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.color-swatch {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #fff;
}

.examples-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.example-card pre {
  background: #f1f5f9;
  padding: 12px;
  border-radius: 10px;
  white-space: pre-wrap;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.related {
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  padding-left: 18px;
}

.serp-preview {
  background: #ffffff;
  border-radius: 12px;
  border: 1px solid var(--border);
  padding: 16px;
}

.serp-title {
  color: #1d4ed8;
  font-weight: 700;
  margin-bottom: 4px;
}

.serp-url {
  color: #0f766e;
  font-size: 0.85rem;
  margin-bottom: 8px;
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

@media (max-width: 720px) {
  .site-header .container {
    flex-direction: column;
    gap: 12px;
    height: auto;
    padding: 12px 0;
  }
  .nav {
    justify-content: center;
  }
  .tool-actions {
    flex-direction: column;
    align-items: stretch;
  }
}