/* ═══════════════════════════════════════════════════════════
   ANNIE Insights API — Documentation Website
   Bright theme aligned with HCDS.ai brand identity
   ═══════════════════════════════════════════════════════════ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --color-primary: #0b3d6b;
  --color-primary-light: #1a5a9e;
  --color-primary-dark: #082d50;
  --color-accent: #00b4d8;
  --color-accent-light: #48cae4;
  --color-accent-dark: #0096b7;
  --color-teal: #0a9396;
  --color-green: #2dc653;
  --color-orange: #e8913a;
  --color-red: #e05c44;
  --color-bg: #f5f8fc;
  --color-bg-white: #ffffff;
  --color-bg-subtle: #eef3f9;
  --color-bg-code: #f0f4f8;
  --color-border: #d8e2ee;
  --color-border-light: #e8eef5;
  --color-border-accent: rgba(0, 180, 216, 0.3);
  --color-text: #1e293b;
  --color-text-secondary: #475569;
  --color-text-muted: #64748b;
  --color-text-dim: #94a3b8;
  --gradient-hero: linear-gradient(135deg, #0b3d6b 0%, #1a5a9e 40%, #0a9396 80%, #00b4d8 100%);
  --gradient-accent: linear-gradient(135deg, #00b4d8, #0a9396);
  --gradient-card-hover: linear-gradient(145deg, rgba(0,180,216,0.04), rgba(10,147,150,0.04));
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.07);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.08);
  --shadow-card: 0 2px 12px rgba(11, 61, 107, 0.06);
  --shadow-card-hover: 0 8px 30px rgba(11, 61, 107, 0.12);
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --max-width: 1200px;
  --header-height: 72px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font-sans); background: var(--color-bg); color: var(--color-text); line-height: 1.7; font-size: 16px; overflow-x: hidden; }
a { color: var(--color-primary-light); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--color-accent-dark); }
h1,h2,h3,h4,h5,h6 { color: var(--color-primary); line-height: 1.2; font-weight: 700; }
h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); letter-spacing: -0.01em; }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); }
p { color: var(--color-text-secondary); max-width: 65ch; }
.text-gradient { background: var(--gradient-accent); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 2rem; }
.section { padding: 5rem 0; position: relative; }
.section-header { text-align: center; margin-bottom: 3.5rem; }
.section-header .label { margin-bottom: 0.5rem; display: block; font-size: 0.75rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--color-accent-dark); }
.section-header h2 { margin-bottom: 1rem; }
.section-header p { margin: 0 auto; font-size: 1.1rem; }

/* ─── Header ─── */
.header { position: fixed; top: 0; left: 0; right: 0; height: var(--header-height); z-index: 1000; background: rgba(255,255,255,0.92); backdrop-filter: blur(16px); border-bottom: 1px solid var(--color-border-light); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 2rem; }
.logo { display: flex; align-items: center; gap: 0.75rem; font-size: 1.4rem; font-weight: 800; color: var(--color-primary); text-decoration: none; }
.logo-img { height: 36px; width: auto; border-radius: 4px; }
.nav { display: flex; align-items: center; gap: 1.5rem; list-style: none; }
.nav a { color: var(--color-text-muted); font-size: 0.9rem; font-weight: 500; transition: color var(--transition-fast); }
.nav a:hover { color: var(--color-primary); }
.nav-toggle { display: none; background: none; border: none; color: var(--color-primary); font-size: 1.5rem; cursor: pointer; }

/* ─── Hero ─── */
.hero { position: relative; min-height: 55vh; display: flex; align-items: center; justify-content: center; text-align: center; background: var(--gradient-hero); overflow: hidden; padding-top: var(--header-height); }
.hero::before { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse at 20% 50%, rgba(255,255,255,0.08) 0%, transparent 60%), radial-gradient(ellipse at 80% 20%, rgba(255,255,255,0.05) 0%, transparent 50%); pointer-events: none; }
.hero::after { 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: 60px 60px; mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%); animation: gridPulse 8s ease-in-out infinite; }
@keyframes gridPulse { 0%,100%{opacity:0.3} 50%{opacity:0.6} }
.hero-content { position: relative; z-index: 2; max-width: 800px; padding: 2rem; }
.hero-badge { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.3rem 1.5rem; background: rgba(255,255,255,0.15); border: 1px solid rgba(255,255,255,0.25); border-radius: var(--radius-full); font-size: 0.8rem; font-weight: 500; color: #fff; margin-bottom: 2rem; animation: fadeInUp 0.6s ease; }
.hero-badge .pulse { width: 8px; height: 8px; border-radius: 50%; background: var(--color-green); animation: pulse 2s ease-in-out infinite; }
@keyframes pulse { 0%,100%{box-shadow:0 0 0 0 rgba(45,198,83,0.4)} 50%{box-shadow:0 0 0 8px rgba(45,198,83,0)} }
@keyframes fadeInUp { from{opacity:0;transform:translateY(20px)} to{opacity:1;transform:translateY(0)} }
.hero h1 { color: #fff; margin-bottom: 1.5rem; animation: fadeInUp 0.6s ease 0.1s both; }
.hero p { font-size: 1.15rem; margin: 0 auto 2rem; color: rgba(255,255,255,0.9); animation: fadeInUp 0.6s ease 0.2s both; }


/* ─── Auth Notice ─── */
.auth-notice { background: linear-gradient(135deg, #fef3c7, #fde68a); border: 1px solid #f59e0b; border-radius: var(--radius-lg); padding: 1.5rem 2rem; display: flex; align-items: flex-start; gap: 1rem; margin-bottom: 2rem; }
.auth-notice .auth-icon { font-size: 1.4rem; flex-shrink: 0; margin-top: 0.1rem; }
.auth-notice p { color: #92400e; font-size: 0.95rem; max-width: none; }
.auth-notice strong { color: #78350f; }
.auth-notice a { color: #b45309; font-weight: 600; text-decoration: underline; }

/* ─── Sandbox Notice ─── */
.sandbox-notice { background: linear-gradient(135deg, #d1fae5, #a7f3d0); border: 1px solid #10b981; border-radius: var(--radius-lg); padding: 1.5rem 2rem; display: flex; align-items: flex-start; gap: 1rem; margin-bottom: 2rem; }
.sandbox-notice .auth-icon { font-size: 1.4rem; flex-shrink: 0; margin-top: 0.1rem; }
.sandbox-notice p { color: #065f46; font-size: 0.95rem; max-width: none; }
.sandbox-notice strong { color: #064e3b; }
.sandbox-key-box { display: flex; align-items: center; gap: 0.75rem; margin-top: 0.75rem; background: rgba(255,255,255,0.7); border: 1px solid rgba(16,185,129,0.3); border-radius: var(--radius-md); padding: 0.6rem 1rem; }
.sandbox-key-box code { font-family: var(--font-mono); font-size: 0.9rem; color: #064e3b; font-weight: 500; letter-spacing: 0.02em; user-select: all; }
.copy-btn-inline { background: var(--gradient-accent); color: #fff; border: none; padding: 0.35rem 0.85rem; border-radius: var(--radius-sm); font-size: 0.75rem; font-weight: 600; font-family: var(--font-sans); cursor: pointer; transition: all var(--transition-fast); flex-shrink: 0; }
.copy-btn-inline:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(0,180,216,0.3); }

/* ─── Buttons ─── */
.btn { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.75rem 1.75rem; font-size: 0.95rem; font-weight: 600; font-family: var(--font-sans); border-radius: var(--radius-md); cursor: pointer; transition: all var(--transition-base); border: none; text-decoration: none; }
.btn-white { background: #fff; color: var(--color-primary); box-shadow: var(--shadow-md); }
.btn-white:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); color: var(--color-primary); }
.btn-outline-white { background: transparent; color: #fff; border: 1.5px solid rgba(255,255,255,0.4); }
.btn-outline-white:hover { border-color: #fff; background: rgba(255,255,255,0.1); color: #fff; transform: translateY(-2px); }
.btn-primary { background: var(--gradient-accent); color: #fff; box-shadow: 0 4px 16px rgba(0,180,216,0.25); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(0,180,216,0.35); color: #fff; }

/* ─── Cards ─── */
.card { background: var(--color-bg-white); border: 1px solid var(--color-border-light); border-radius: var(--radius-lg); padding: 1.75rem; transition: all var(--transition-base); position: relative; overflow: hidden; box-shadow: var(--shadow-card); }
.card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--gradient-accent); opacity: 0; transition: opacity var(--transition-base); }
.card:hover { border-color: var(--color-border-accent); transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
.card:hover::before { opacity: 1; }
.card-img { width: 80px; height: 80px; border-radius: 50%; object-fit: cover; margin-bottom: 1rem; border: 2px solid var(--color-border-light); }
.card h3 { margin-bottom: 0.5rem; font-size: 1.05rem; color: var(--color-primary); }
.card p { font-size: 0.88rem; line-height: 1.6; color: var(--color-text-muted); }
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 1.5rem; }

/* ─── Method badges ─── */
.method { display: inline-block; padding: 0.2rem 0.6rem; border-radius: var(--radius-sm); font-size: 0.7rem; font-weight: 700; font-family: var(--font-mono); letter-spacing: 0.05em; }
.method-post { background: rgba(45,198,83,0.12); color: #16a34a; }
.method-get { background: rgba(0,180,216,0.12); color: var(--color-accent-dark); }

/* ─── Endpoint URL ─── */
.endpoint-url { font-family: var(--font-mono); font-size: 0.78rem; color: var(--color-text-muted); background: var(--color-bg-code); padding: 0.4rem 0.8rem; border-radius: var(--radius-sm); display: block; margin: 0.5rem 0; word-break: break-all; border: 1px solid var(--color-border); }
.card .tag-row { display: flex; gap: 0.4rem; flex-wrap: wrap; margin-top: 0.75rem; }
.tag { font-size: 0.65rem; padding: 0.15rem 0.5rem; border-radius: var(--radius-full); background: var(--color-bg-subtle); color: var(--color-text-muted); border: 1px solid var(--color-border); }

/* ─── API Detail Accordion ─── */
.api-detail { background: var(--color-bg-white); border: 1px solid var(--color-border-light); border-radius: var(--radius-lg); margin-bottom: 1rem; overflow: hidden; box-shadow: var(--shadow-sm); }
.api-detail-header { display: flex; align-items: center; justify-content: space-between; padding: 1.25rem 2rem; cursor: pointer; transition: background var(--transition-fast); user-select: none; }
.api-detail-header:hover { background: var(--gradient-card-hover); }
.api-detail-header h3 { font-size: 1.05rem; display: flex; align-items: center; gap: 0.75rem; color: var(--color-primary); }
.api-detail-header .chevron { color: var(--color-text-dim); transition: transform var(--transition-base); font-size: 0.9rem; }
.api-detail-header.active .chevron { transform: rotate(180deg); color: var(--color-accent-dark); }
.api-detail-body { display: none; padding: 0 2rem 2rem; border-top: 1px solid var(--color-border-light); }
.api-detail-body.active { display: block; padding-top: 1.5rem; }
.api-detail-body .api-img { width: 100px; height: 100px; border-radius: 50%; object-fit: cover; float: right; margin: 0 0 1rem 1.5rem; border: 2px solid var(--color-border-light); }

/* ─── Code blocks ─── */
pre { background: #1e293b; border: 1px solid #334155; border-radius: var(--radius-md); padding: 1.25rem; overflow-x: auto; margin: 1rem 0; position: relative; }
code { font-family: var(--font-mono); font-size: 0.85rem; line-height: 1.7; }
pre code { color: #e2e8f0; }
.inline-code, p code, td code { background: var(--color-bg-code); color: var(--color-primary); padding: 0.15rem 0.4rem; border-radius: 4px; font-size: 0.85em; border: 1px solid var(--color-border); }
.copy-btn { position: absolute; top: 0.5rem; right: 0.75rem; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.15); color: rgba(255,255,255,0.6); padding: 0.25rem 0.5rem; border-radius: var(--radius-sm); font-size: 0.7rem; font-family: var(--font-sans); cursor: pointer; transition: all var(--transition-fast); }
.copy-btn:hover { background: rgba(0,180,216,0.2); border-color: var(--color-accent); color: var(--color-accent-light); }

/* ─── Param table ─── */
.param-table { width: 100%; border-collapse: collapse; margin: 1rem 0; }
.param-table th { text-align: left; font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; color: var(--color-text-dim); padding: 0.75rem 1rem; border-bottom: 2px solid var(--color-border); background: var(--color-bg-subtle); }
.param-table td { padding: 0.75rem 1rem; font-size: 0.9rem; border-bottom: 1px solid var(--color-border-light); }
.param-table tr:hover td { background: rgba(0,180,216,0.03); }
.param-name { font-family: var(--font-mono); color: var(--color-primary-light); font-size: 0.85rem; font-weight: 500; }
.param-type { font-family: var(--font-mono); color: var(--color-orange); font-size: 0.8rem; }
.param-required { font-size: 0.65rem; font-weight: 600; padding: 0.15rem 0.45rem; border-radius: var(--radius-full); }
.param-required.yes { background: rgba(224,92,68,0.1); color: var(--color-red); }
.param-required.no { background: var(--color-bg-subtle); color: var(--color-text-dim); }

/* ─── Quick start ─── */
.quickstart-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem; }
.steps { counter-reset: step; display: flex; flex-direction: column; gap: 1.5rem; }
.step { display: flex; gap: 1.5rem; align-items: flex-start; }
.step::before { counter-increment: step; content: counter(step); min-width: 44px; height: 44px; border-radius: 50%; background: var(--gradient-accent); color: #fff; font-weight: 700; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 12px rgba(0,180,216,0.25); flex-shrink: 0; }
.step-content h4 { margin-bottom: 0.25rem; font-size: 1rem; color: var(--color-primary); }
.step-content p { font-size: 0.9rem; }

/* ─── Response tab ─── */
.response-section { margin-top: 1.5rem; }
.response-section h4 { margin-bottom: 0.75rem; color: var(--color-primary); font-size: 0.95rem; }

/* ─── Footer ─── */
.footer { background: var(--color-primary-dark); padding: 3rem 0 1.5rem; text-align: center; }
.footer p { margin: 0 auto; font-size: 0.8rem; color: rgba(255,255,255,0.5); }
.footer a { color: rgba(255,255,255,0.7); }
.footer a:hover { color: #fff; }
.footer-brand { margin-bottom: 1.25rem; }
.footer-logo { height: 48px; width: auto; border-radius: 6px; opacity: 0.9; }
.footer-links { display: flex; justify-content: center; gap: 0.75rem; align-items: center; flex-wrap: wrap; margin-bottom: 1rem; }
.footer-links span { color: rgba(255,255,255,0.25); font-size: 0.75rem; }
.footer-links a { font-size: 0.85rem; }

/* ─── Benefits ─── */
.benefits-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.5rem; }
.benefit-card { background: var(--color-bg-white); border: 1px solid var(--color-border-light); border-radius: var(--radius-lg); padding: 2rem; text-align: center; transition: all var(--transition-base); box-shadow: var(--shadow-card); }
.benefit-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); border-color: var(--color-border-accent); }
.benefit-icon { font-size: 2rem; margin-bottom: 1rem; }
.benefit-card h3 { margin-bottom: 0.5rem; font-size: 1.05rem; color: var(--color-primary); }
.benefit-card p { font-size: 0.9rem; color: var(--color-text-muted); margin: 0 auto; }

/* ─── Video demos ─── */
.video-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.video-card { background: var(--color-bg); border: 1px solid var(--color-border-light); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-card); transition: all var(--transition-base); }
.video-card:hover { box-shadow: var(--shadow-card-hover); transform: translateY(-2px); }
.video-card video { width: 100%; display: block; background: #000; aspect-ratio: 16/9; }
.video-card h3 { padding: 1.25rem 1.5rem 0.25rem; font-size: 1rem; color: var(--color-primary); }
.video-card p { padding: 0 1.5rem 1.25rem; font-size: 0.85rem; color: var(--color-text-muted); }

/* ─── Inline API demo video ─── */
.api-demo-video { width: 100%; border-radius: var(--radius-md); margin: 1rem 0; background: #000; aspect-ratio: 16/9; }

/* ─── Responsive ─── */
@media (max-width: 768px) {
  .nav { display: none; flex-direction: column; position: absolute; top: var(--header-height); left: 0; right: 0; background: rgba(255,255,255,0.97); backdrop-filter: blur(16px); padding: 1.5rem 2rem; border-bottom: 1px solid var(--color-border); gap: 1rem; }
  .nav.open { display: flex; }
  .nav-toggle { display: block; }
  .services-grid { grid-template-columns: 1fr; }
  .quickstart-grid { grid-template-columns: 1fr; }
  .benefits-grid { grid-template-columns: 1fr; }
  .video-grid { grid-template-columns: 1fr; }
  .hero { min-height: 45vh; }
  .api-detail-header { padding: 1rem; }
  .api-detail-body { padding: 0 1rem 1.5rem; }
  .api-detail-body .api-img { float: none; margin: 0 auto 1rem; display: block; }
}