/* ─── Reset & Base ─── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --clr-bg: #f7f8fa;
  --clr-bg-alt: #eef0f4;
  --clr-surface: #ffffff;
  --clr-text: #1a1d24;
  --clr-text-muted: #5a6170;
  --clr-accent: #1a6b4a;
  --clr-accent-light: #e6f3ed;
  --clr-accent-dark: #0f4a32;
  --clr-danger: #9e3a3a;
  --clr-danger-light: #fdecea;
  --clr-border: #d4d8e0;
  --clr-code-bg: #1e1e2e;
  --clr-code-text: #cdd6f4;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", "Cascadia Code", monospace;
  --max-w: 960px;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, .06);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, .08);
  --transition: .2s ease;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --clr-bg: #0f131a;
    --clr-bg-alt: #161d27;
    --clr-surface: #1a222d;
    --clr-text: #e6edf7;
    --clr-text-muted: #a7b3c4;
    --clr-accent: #5fc89a;
    --clr-accent-light: #1a3a27;
    --clr-accent-dark: #82e0b6;
    --clr-danger: #e87070;
    --clr-danger-light: #3a2020;
    --clr-border: #2a3645;
    --clr-code-bg: #111118;
    --clr-code-text: #cdd6f4;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, .4);
    --shadow-md: 0 6px 24px rgba(0, 0, 0, .5);
  }
}

:root[data-theme="dark"] {
  --clr-bg: #0f131a;
  --clr-bg-alt: #161d27;
  --clr-surface: #1a222d;
  --clr-text: #e6edf7;
  --clr-text-muted: #a7b3c4;
  --clr-accent: #5fc89a;
  --clr-accent-light: #1a3a27;
  --clr-accent-dark: #82e0b6;
  --clr-danger: #e87070;
  --clr-danger-light: #3a2020;
  --clr-border: #2a3645;
  --clr-code-bg: #111118;
  --clr-code-text: #cdd6f4;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, .4);
  --shadow-md: 0 6px 24px rgba(0, 0, 0, .5);
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 72px;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--clr-text);
  background: var(--clr-bg);
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  color: var(--clr-accent-dark);
  text-decoration: underline;
}

img { max-width: 100%; }

code {
  font-family: var(--font-mono);
  font-size: .88em;
  background: var(--clr-bg-alt);
  padding: 2px 6px;
  border-radius: 4px;
}

.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

.top-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--clr-bg) 92%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--clr-border);
  transition: box-shadow var(--transition);
}

.top-nav.scrolled { box-shadow: var(--shadow-sm); }

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 14px;
  height: 60px;
}

.nav-brand {
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -.02em;
  color: var(--clr-text);
}

.nav-brand:hover {
  text-decoration: none;
  color: var(--clr-accent);
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 28px;
  align-items: center;
  margin-left: auto;
}

.nav-links a {
  color: var(--clr-text-muted);
  font-size: .9rem;
  font-weight: 500;
}

.nav-links a:hover {
  color: var(--clr-accent);
  text-decoration: none;
}

.nav-search {
  padding: 6px 14px;
  border: 1px solid var(--clr-accent);
  color: var(--clr-accent) !important;
  border-radius: var(--radius-sm);
}

.nav-search:hover {
  background: var(--clr-accent-light);
  text-decoration: none;
}

.theme-toggle {
  width: 36px;
  height: 36px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--clr-border);
  border-radius: 999px;
  color: var(--clr-text-muted);
  cursor: pointer;
  flex-shrink: 0;
}

.theme-toggle:hover {
  background: var(--clr-bg-alt);
  border-color: var(--clr-accent);
  color: var(--clr-accent);
}

.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle .icon-sun { display: block; }
  :root:not([data-theme="light"]) .theme-toggle .icon-moon { display: none; }
}

:root[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
:root[data-theme="light"] .theme-toggle .icon-sun { display: none; }
:root[data-theme="light"] .theme-toggle .icon-moon { display: block; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--clr-text);
  border-radius: 2px;
}

.hero {
  padding: 140px 24px 80px;
  text-align: center;
  background: linear-gradient(180deg, var(--clr-bg) 0%, var(--clr-bg-alt) 100%);
}

.hero-inner { max-width: 700px; margin: 0 auto; }

.hero-badge {
  display: inline-block;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--clr-accent);
  background: var(--clr-accent-light);
  padding: 4px 14px;
  border-radius: 100px;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -.03em;
  margin-bottom: 20px;
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--clr-text-muted);
  max-width: 560px;
  margin: 0 auto 32px;
}

.hero-cta {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  font-weight: 600;
  font-size: .95rem;
  padding: 12px 28px;
  border-radius: var(--radius);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--clr-accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--clr-accent-dark);
  color: #fff;
  text-decoration: none;
}

.btn-outline {
  background: transparent;
  border: 1.5px solid var(--clr-border);
  color: var(--clr-text);
}

.btn-outline:hover {
  border-color: var(--clr-accent);
  color: var(--clr-accent);
  text-decoration: none;
}

.section { padding: 80px 0; }
.section-alt { background: var(--clr-bg-alt); }

.section-title {
  font-size: 1.8rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 12px;
}

.section-desc {
  text-align: center;
  color: var(--clr-text-muted);
  max-width: 560px;
  margin: 0 auto 40px;
}

.comparison {
  display: flex;
  align-items: stretch;
  gap: 24px;
  margin-top: 40px;
}

.comparison-card {
  flex: 1;
  padding: 28px;
  border-radius: var(--radius);
  border: 1.5px solid var(--clr-border);
  background: var(--clr-surface);
}

.comparison-card.bad {
  border-color: var(--clr-danger);
  background: var(--clr-danger-light);
}

.comparison-card.good {
  border-color: var(--clr-accent);
  background: var(--clr-accent-light);
}

.comparison-label {
  font-weight: 700;
  font-size: .85rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 16px;
}

.comparison-card.bad .comparison-label { color: var(--clr-danger); }
.comparison-card.good .comparison-label { color: var(--clr-accent); }

.comparison-card ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.comparison-card li { position: relative; padding-left: 22px; font-size: .95rem; }
.comparison-card.bad li::before { content: "✕"; position: absolute; left: 0; color: var(--clr-danger); font-weight: 700; }
.comparison-card.good li::before { content: "✓"; position: absolute; left: 0; color: var(--clr-accent); font-weight: 700; }
.comparison-arrow { display: flex; align-items: center; font-size: 2rem; color: var(--clr-text-muted); }

.steps {
  list-style: none;
  max-width: 640px;
  margin: 40px auto 0;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.steps li { display: flex; gap: 20px; align-items: flex-start; }

.step-num {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--clr-accent);
  background: var(--clr-accent-light);
  border-radius: 50%;
}

.steps li div strong { display: block; margin-bottom: 4px; font-size: 1.05rem; }
.steps li div p { color: var(--clr-text-muted); font-size: .95rem; }

.tool-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
}

.tool-card {
  width: calc(33.333% - 14px);
  padding: 24px;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  background: var(--clr-surface);
}

.tool-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--clr-accent);
}

.tool-card h3 {
  font-family: var(--font-mono);
  font-size: .95rem;
  color: var(--clr-accent);
  margin-bottom: 10px;
}

.tool-card p { font-size: .9rem; color: var(--clr-text-muted); line-height: 1.6; }

.search-site-cta { display: flex; gap: 14px; flex-wrap: wrap; }
.search-site-cta .search-site-input { flex: 1 1 0; min-width: 0; }
.search-site-cta-card {
  margin: 0 auto 28px;
  max-width: 760px;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  padding: 20px;
}

.search-site-input {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--radius);
  border: 1.5px solid var(--clr-border);
  background: var(--clr-surface);
  color: var(--clr-text);
}

.search-site-input:focus {
  outline: none;
  border-color: var(--clr-accent);
}

.server-url-box {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.server-url-value {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  background: var(--clr-surface);
  border: 1.5px solid var(--clr-accent);
  padding: 12px 24px;
  border-radius: var(--radius);
  color: var(--clr-accent);
  font-weight: 600;
  user-select: all;
}

.copy-url-btn {
  padding: 12px 22px;
  font-size: .9rem;
  font-weight: 600;
  background: var(--clr-accent);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
}

.copy-url-btn.copied { background: var(--clr-accent-dark); }

.server-status {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
  font-size: .85rem;
  color: var(--clr-text-muted);
}

.usage-stats-chips { display: inline-flex; flex-wrap: wrap; align-items: center; }
.usage-stats-chips .usage-stat-sep { margin: 0 0.4em; opacity: 0.5; }

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--clr-border);
  flex-shrink: 0;
  position: relative;
}

.status-dot.online {
  background: #22c55e;
  box-shadow: 0 0 0 3px rgba(34, 197, 94, .2);
}

.status-dot.offline {
  background: var(--clr-danger);
}

.status-label.online { color: #16a34a; }
.status-label.offline { color: var(--clr-danger); }

.setup-tabs {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.tab {
  padding: 10px 22px;
  font-size: .9rem;
  font-weight: 600;
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius);
  background: var(--clr-surface);
  color: var(--clr-text-muted);
  cursor: pointer;
}

.tab.active {
  background: var(--clr-accent);
  color: #fff;
  border-color: var(--clr-accent);
}

.tab-panel { display: none; max-width: 700px; margin: 0 auto; }
.tab-panel.active { display: block; }
.tab-panel h3 { font-size: 1.2rem; margin-bottom: 12px; }
.tab-panel > p { margin-bottom: 16px; color: var(--clr-text-muted); }

.setup-steps-list {
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--clr-surface);
  margin-top: 20px;
}

.setup-step {
  display: flex;
  gap: 16px;
  padding: 20px 24px;
  border-bottom: 1px solid var(--clr-border);
}

.setup-step:last-child { border-bottom: none; }

.setup-step-num {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: .8rem;
  color: #fff;
  background: var(--clr-accent);
  border-radius: 50%;
  flex-shrink: 0;
}

.setup-step-body { flex: 1; min-width: 0; }
.setup-step-body > strong { display: block; margin-bottom: 4px; }
.setup-step-body p { color: var(--clr-text-muted); font-size: .9rem; margin-bottom: 8px; }

.field-row {
  display: flex;
  gap: 16px;
  align-items: center;
  margin-bottom: 6px;
  flex-wrap: wrap;
}

.field-row .field-label { font-weight: 600; font-size: .85rem; min-width: 48px; }

.code-block {
  position: relative;
  margin-bottom: 20px;
  border-radius: var(--radius);
  overflow: hidden;
}

.code-block pre {
  background: var(--clr-code-bg);
  color: var(--clr-code-text);
  padding: 20px 24px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: .85rem;
}

.code-block code { background: none; padding: 0; color: inherit; }

.copy-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  padding: 4px 12px;
  font-size: .75rem;
  font-weight: 600;
  background: rgba(255, 255, 255, .1);
  color: var(--clr-code-text);
  border: 1px solid rgba(255, 255, 255, .15);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.copy-btn.copied { background: var(--clr-accent); color: #fff; }

.grounding-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 20px;
  margin-top: 32px;
}

.grounding-item {
  padding: 24px;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
}

.grounding-item h4 { margin-bottom: 8px; }
.grounding-item p { font-size: .9rem; color: var(--clr-text-muted); }

.disclaimer { padding: 60px 0; }

.disclaimer-card {
  max-width: 720px;
  margin: 0 auto;
  background: var(--clr-surface);
  border: 1.5px solid #d4a94c;
  border-radius: var(--radius);
  padding: 36px 40px;
}

.disclaimer-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid #eee0c8;
}

.disclaimer-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: #fdf3e0;
  color: #b8860b;
  font-size: 1.2rem;
}

.disclaimer-header h2 { font-size: 1.15rem; color: #8b6914; margin: 0; }
.disclaimer-body p { font-size: .9rem; color: var(--clr-text-muted); margin-bottom: 14px; }
.disclaimer-footer {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid #eee0c8;
  text-align: center;
  font-size: .88rem;
  font-weight: 600;
  color: #8b6914;
}

.site-footer {
  padding: 40px 0;
  border-top: 1px solid var(--clr-border);
  text-align: center;
}

.footer-inner p { font-size: .88rem; color: var(--clr-text-muted); margin-bottom: 6px; }
.footer-credit { font-size: .82rem !important; }
.footer-credit-mobile-break { display: none; }

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .5s ease, transform .5s ease;
}

.reveal.visible { opacity: 1; transform: translateY(0); }

@media (max-width: 768px) {
  .footer-credit-mobile-break { display: block; }
  .nav-toggle { display: flex; }
  .theme-toggle { margin-left: auto; }
  .nav-links {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--clr-bg);
    border-bottom: 1px solid var(--clr-border);
    max-height: 0;
    overflow: hidden;
    transition: max-height .3s ease;
    margin-left: 0;
  }
  .nav-links.open { max-height: 400px; }
  .nav-links li { border-bottom: 1px solid var(--clr-border); }
  .nav-links a { display: block; padding: 14px 24px; }
  .comparison { flex-direction: column; }
  .comparison-arrow { justify-content: center; transform: rotate(90deg); }
  .hero { padding: 120px 20px 60px; }
  .section { padding: 60px 0; }
  .hide-mobile { display: none; }
  .tool-card { width: calc(50% - 10px); }
}

@media (max-width: 480px) {
  .tool-card { width: 100%; }
  .grounding-grid { grid-template-columns: 1fr; }
}