/* guid-generator.com - base styles */
:root {
  --bg: #ffffff;
  --bg-soft: #f6f7fb;
  --bg-soft2: #eef0f7;
  --text: #14161a;
  --text-muted: #5b6472;
  --border: #e4e7ec;
  --accent: #4f46e5;
  --accent-dark: #3730a3;
  --accent-lt: rgba(79, 70, 229, 0.08);
  --code-bg: #0d1117;
  --code-text: #e6edf3;
  --success: #16a34a;
  --radius: 12px;
  --radius-lg: 18px;
  --shadow: 0 8px 28px rgba(20, 22, 26, 0.08);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }
code, pre, .mono { font-family: var(--mono); }

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header ---------- */
.site-header {
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  z-index: 50;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.logo {
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
}
.logo span { color: var(--accent); }
.logo:hover { text-decoration: none; }

.main-nav { display: flex; align-items: center; gap: 28px; }
.main-nav ul { display: flex; gap: 24px; list-style: none; margin: 0; padding: 0; }
.main-nav a { color: var(--text-muted); font-weight: 600; font-size: 0.92rem; }
.main-nav a:hover { color: var(--accent); text-decoration: none; }

.has-dropdown { position: relative; }
.dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: -12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 10px;
  min-width: 220px;
  margin-top: 8px;
}
.has-dropdown:hover .dropdown { display: block; }
.dropdown a {
  display: block;
  padding: 8px 12px;
  border-radius: 8px;
  color: var(--text);
  font-weight: 500;
  font-size: 0.9rem;
}
.dropdown a:hover { background: var(--accent-lt); text-decoration: none; }

.nav-toggle { display: none; }

/* ---------- Hero ---------- */
.hero {
  padding: 24px 0 12px;
  text-align: center;
}
.hero h1 {
  font-size: clamp(1.6rem, 3.4vw, 2.2rem);
  margin: 0 0 8px;
  letter-spacing: -0.02em;
}
.hero p.lede {
  color: var(--text-muted);
  font-size: 1rem;
  max-width: 640px;
  margin: 0 auto;
}

/* ---------- Generator card ---------- */
.generator-card {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin: 12px 0;
}
.uuid-display {
  background: var(--code-bg);
  color: var(--code-text);
  border-radius: var(--radius);
  padding: 22px 24px;
  font-family: var(--mono);
  font-size: 1.3rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  word-break: break-all;
  margin-bottom: 18px;
}
.uuid-display #uuidOutput { flex: 1; }
.btn-copy {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 10px 16px;
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  flex-shrink: 0;
  transition: background 0.15s ease;
}
.btn-copy:hover { background: var(--accent-dark); }
.btn-copy.copied { background: var(--success); }

.controls-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}
.version-tabs {
  display: inline-flex;
  background: var(--bg-soft2);
  border-radius: 10px;
  padding: 4px;
  gap: 2px;
}
.version-tabs button {
  border: none;
  background: transparent;
  padding: 8px 16px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--text-muted);
  cursor: pointer;
}
.version-tabs button.active { background: var(--bg); color: var(--accent); box-shadow: 0 1px 4px rgba(0,0,0,0.08); }

.btn-primary {
  background: var(--text);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 10px 18px;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
}
.btn-primary:hover { background: var(--accent-dark); }

.options-row {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: 0.88rem;
  color: var(--text-muted);
}
.options-row label { display: flex; align-items: center; gap: 6px; cursor: pointer; }

/* Bulk section */
.bulk-section { margin-top: 18px; padding-top: 18px; border-top: 1px solid var(--border); }
.bulk-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.bulk-row input[type="number"] {
  width: 100px;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: var(--mono);
  font-size: 0.9rem;
}
.btn-secondary {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 9px 14px;
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }
textarea#bulkOutput {
  width: 100%;
  margin-top: 14px;
  min-height: 180px;
  background: var(--code-bg);
  color: var(--code-text);
  font-family: var(--mono);
  font-size: 0.92rem;
  border: none;
  border-radius: var(--radius);
  padding: 16px;
  resize: vertical;
}

/* ---------- Generic content sections ---------- */
.section { padding: 48px 0; }
.section h2 { font-size: 1.6rem; margin-bottom: 14px; letter-spacing: -0.01em; }
.section h3 { font-size: 1.15rem; margin: 24px 0 8px; }
.section p { color: var(--text-muted); }
.section.alt { background: var(--bg-soft); }

.lang-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin-top: 20px;
}
.lang-grid a {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  text-align: center;
  font-weight: 700;
  color: var(--text);
}
.lang-grid a:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }

pre.code-block {
  background: var(--code-bg);
  color: var(--code-text);
  border-radius: var(--radius);
  padding: 18px 20px;
  overflow-x: auto;
  font-size: 0.88rem;
  line-height: 1.55;
  position: relative;
}
.code-block-wrap { position: relative; margin: 16px 0; }
.code-block-wrap .btn-copy-code {
  position: absolute;
  top: 10px;
  right: 10px;
  background: rgba(255,255,255,0.08);
  color: var(--code-text);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 6px;
  padding: 5px 10px;
  font-size: 0.75rem;
  cursor: pointer;
}
.code-block-wrap .btn-copy-code:hover { background: rgba(255,255,255,0.18); }

.faq-item { border-bottom: 1px solid var(--border); padding: 18px 0; }
.faq-item h3 { margin: 0 0 8px; font-size: 1.05rem; }
.faq-item p { margin: 0; }

table.compare {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 0.92rem;
}
table.compare th, table.compare td {
  border: 1px solid var(--border);
  padding: 10px 14px;
  text-align: left;
}
table.compare th { background: var(--bg-soft); }

.learn-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
  margin-top: 20px;
}
.learn-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.learn-card h3 { margin-top: 0; }
.learn-card a { font-weight: 700; }
.tag {
  display: inline-block;
  background: var(--accent-lt);
  color: var(--accent);
  font-size: 0.74rem;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: 6px;
  margin-bottom: 10px;
  letter-spacing: 0.02em;
}

.breadcrumb { font-size: 0.85rem; color: var(--text-muted); margin-top: 18px; margin-bottom: 18px; }
.breadcrumb a { color: var(--text-muted); }

/* ---------- Contact form ---------- */
.field-label {
  display: block;
  font-weight: 600;
  font-size: 0.88rem;
  margin-bottom: 6px;
}
.form-input,
.form-textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font-size: 0.95rem;
  font-family: var(--font);
  box-sizing: border-box;
}
.form-textarea { min-height: 160px; resize: vertical; font-family: var(--font); }
.form-input:focus, .form-textarea:focus { outline: none; border-color: var(--accent); }
.char-count { text-align: right; font-size: 0.78rem; color: var(--text-muted); margin-top: 4px; }
.honeypot-field { position: absolute; left: -9999px; top: -9999px; }
.form-msg { margin-top: 12px; font-size: 0.9rem; min-height: 1.4em; font-weight: 600; }
.form-msg.success { color: var(--success); }
.form-msg.error { color: #b91c1c; }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-soft);
  padding: 40px 0 24px;
  margin-top: 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 24px;
  margin-bottom: 28px;
}
.footer-grid h4 { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-muted); margin-bottom: 10px; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin-bottom: 8px; }
.footer-grid a { color: var(--text); font-size: 0.9rem; }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 18px;
  font-size: 0.82rem;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

@media (max-width: 860px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 760px) {
  .nav-toggle {
    display: block;
    background: none;
    border: none;
    font-size: 1.6rem;
    cursor: pointer;
    color: var(--text);
  }
  .main-nav {
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: flex-start;
    padding: 16px 24px;
    display: none;
    box-shadow: var(--shadow);
  }
  .main-nav.open { display: flex; }
  .main-nav ul { flex-direction: column; gap: 14px; width: 100%; }
  .has-dropdown .dropdown { position: static; box-shadow: none; margin-top: 8px; display: none; }
  .has-dropdown.open .dropdown { display: block; }
  .footer-grid { grid-template-columns: 1fr; }
  .uuid-display { font-size: 1rem; flex-direction: column; align-items: stretch; }
}