*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    :root {
      --white: #FFFFFF; --cool-50: #F8FAFC; --cool-100: #F1F5F9; --cool-200: #E2E8F0;
      --cool-300: #CBD5E1; --cool-400: #94A3B8; --cool-500: #64748B; --cool-600: #475569;
      --cool-700: #334155; --ink: #0F172A; --accent: #FF6B35; --accent-dark: #E85D2C;
      --accent-hot: #FF8C5A; --accent-bg: #FFF4EE; --green: #10B981; --green-bg: #ECFDF5;
      --radius: 8px; --radius-sm: 5px;
      --shadow-sm: 0 1px 2px rgba(15,23,42,0.05); --shadow-md: 0 4px 16px rgba(15,23,42,0.08);
      --shadow-lg: 0 12px 40px rgba(15,23,42,0.1); --max-w: 1120px;
    }
    html { scroll-behavior: smooth; }
    body { font-family: 'Sora', -apple-system, BlinkMacSystemFont, sans-serif; background: var(--white); color: var(--ink); line-height: 1.6; -webkit-font-smoothing: antialiased; }
    .container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
    .fade-in { opacity: 0; transform: translateY(16px); transition: opacity 0.5s ease, transform 0.5s ease; }
    .fade-in.visible { opacity: 1; transform: translateY(0); }
    nav { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,0.92); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid var(--cool-200); }
    nav.scrolled { box-shadow: 0 1px 12px rgba(15,23,42,0.06); }
    .nav-inner { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; display: flex; align-items: center; justify-content: space-between; height: 64px; }
    .nav-logo { font-size: 18px; font-weight: 700; letter-spacing: -0.03em; color: var(--ink); text-decoration: none; display: flex; align-items: center; gap: 3px; }
    .nav-logo .dot { display: inline-block; width: 8px; height: 8px; background: var(--accent); border-radius: 50%; margin-left: 1px; }
    .nav-links { display: flex; align-items: center; gap: 8px; list-style: none; }
    .nav-links a { font-size: 14px; font-weight: 400; color: var(--cool-500); text-decoration: none; padding: 7px 14px; border-radius: var(--radius); transition: color 0.15s, background 0.15s; }
    .nav-links a:hover { color: var(--ink); background: var(--cool-50); }
    .nav-cta { background: var(--accent) !important; color: #fff !important; font-weight: 600 !important; padding: 8px 20px !important; border-radius: var(--radius) !important; transition: background 0.15s !important; }
    .nav-cta:hover { background: var(--accent-dark) !important; }
    .nav-cta-secondary { border: 1px solid var(--cool-200) !important; color: var(--cool-600) !important; font-weight: 600 !important; padding: 8px 20px !important; border-radius: var(--radius) !important; transition: border-color 0.15s, color 0.15s !important; }
    .nav-cta-secondary:hover { border-color: var(--accent) !important; color: var(--accent) !important; background: transparent !important; }
    .nav-mobile-toggle { display: none; }
    .hero { padding: 88px 24px 72px; text-align: center; background: var(--white); position: relative; overflow: hidden; }
    .hero > * { position: relative; z-index: 1; }
    .hero-badge { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 600; color: var(--accent); background: var(--accent-bg); padding: 6px 16px; border-radius: 100px; margin-bottom: 28px; }
    .hero-badge .pulse { width: 8px; height: 8px; background: var(--green); border-radius: 50%; display: inline-block; animation: pulse 2s ease-in-out infinite; }
    @keyframes pulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.6; transform: scale(1.3); } }
    .hero h1 { font-size: clamp(38px, 5.5vw, 64px); font-weight: 800; letter-spacing: -0.04em; line-height: 1.08; max-width: 740px; margin: 0 auto 20px; color: var(--ink); }
    .hero h1 .highlight { background: linear-gradient(135deg, var(--accent) 0%, #FF8C5A 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
    .hero-sub { font-size: clamp(16px, 2vw, 18px); color: var(--cool-500); max-width: 540px; margin: 0 auto 40px; line-height: 1.65; font-weight: 400; }
    .hero-form { display: flex; gap: 8px; max-width: 460px; margin: 0 auto 14px; }
    .hero-form input[type="email"] { flex: 1; padding: 14px 16px; border-radius: var(--radius); border: 1px solid var(--cool-200); font-size: 15px; font-family: inherit; color: var(--ink); background: var(--white); outline: none; transition: border-color 0.2s, box-shadow 0.2s; }
    .hero-form input[type="email"]:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(255,107,53,0.12); }
    .hero-form input[type="email"]::placeholder { color: var(--cool-400); }
    .hero-form button { padding: 14px 28px; background: var(--accent); color: #fff; border: none; border-radius: var(--radius); font-size: 15px; font-weight: 600; font-family: inherit; cursor: pointer; white-space: nowrap; transition: background 0.15s, transform 0.1s; }
    .hero-form button:hover { background: var(--accent-dark); }
    .hero-form button:active { transform: scale(0.97); }
    .hero-note { font-size: 13px; color: var(--cool-400); }
    .hero-success { display: none; background: var(--green-bg); border: 1px solid #A7F3D0; color: #065F46; padding: 14px 20px; border-radius: var(--radius); font-size: 15px; font-weight: 500; max-width: 460px; margin: 0 auto 14px; }
    .hero-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin-top: 64px; max-width: 640px; margin-left: auto; margin-right: auto; background: var(--white); border: 1px solid var(--cool-200); border-radius: var(--radius); overflow: hidden; }
    .hero-stat { text-align: center; padding: 24px 16px; }
    .hero-stat + .hero-stat { border-left: 1px solid var(--cool-200); }
    .hero-stat .value { font-size: 28px; font-weight: 800; letter-spacing: -0.03em; line-height: 1; margin-bottom: 4px; color: var(--ink); }
    .hero-stat .label { font-size: 12px; color: var(--cool-400); font-weight: 500; }
    .section { padding: 80px 24px; }
    .section-label { font-size: 13px; font-weight: 700; color: var(--accent); margin-bottom: 8px; }
    .section-title { font-size: clamp(28px, 3.5vw, 40px); font-weight: 800; letter-spacing: -0.03em; line-height: 1.15; color: var(--ink); max-width: 560px; margin-bottom: 14px; }
    .section-desc { font-size: 16px; color: var(--cool-500); max-width: 480px; line-height: 1.7; }
    .features-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 48px; }
    .feature-card { background: var(--cool-50); border: 1px solid var(--cool-200); border-radius: var(--radius); padding: 28px; transition: border-color 0.2s, box-shadow 0.2s; }
    .feature-card:hover { border-color: var(--cool-300); box-shadow: var(--shadow-sm); }
    .feature-icon { width: 40px; height: 40px; border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; margin-bottom: 14px; background: var(--accent-bg); color: var(--accent); }
    .feature-card h3 { font-size: 16px; font-weight: 700; color: var(--ink); margin-bottom: 6px; }
    .feature-card p { font-size: 14px; color: var(--cool-500); line-height: 1.65; }
    .how-section { background: var(--cool-50); border-top: 1px solid var(--cool-200); border-bottom: 1px solid var(--cool-200); }
    .coverage-section { background: var(--cool-50); border-top: 1px solid var(--cool-200); border-bottom: 1px solid var(--cool-200); }
    .api-section .feature-card { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
    .api-section .feature-card:hover { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent), var(--shadow-sm); }
    .steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; margin-top: 48px; }
    .step-badge { display: inline-flex; align-items: center; justify-content: center; width: 36px; height: 36px; border-radius: 50%; background: var(--accent); color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 16px; }
    .step h3 { font-size: 16px; font-weight: 700; color: var(--ink); margin-bottom: 6px; }
    .step p { font-size: 14px; color: var(--cool-500); line-height: 1.65; }
    .step code { font-family: 'JetBrains Mono', monospace; font-size: 13px; background: var(--cool-200); padding: 2px 6px; border-radius: 3px; color: var(--ink); }
    .api-section { background: var(--ink); color: #fff; }
    .api-section .section-label { color: var(--accent-hot); }
    .api-section .section-title { color: #fff; }
    .api-section .section-desc { color: var(--cool-400); }
    .api-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; margin-top: 48px; }
    .endpoint { display: flex; align-items: flex-start; gap: 12px; padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,0.06); }
    .endpoint:first-child { padding-top: 0; }
    .endpoint:last-child { border-bottom: none; }
    .endpoint-method { font-size: 11px; font-weight: 700; font-family: 'JetBrains Mono', monospace; padding: 3px 8px; border-radius: 4px; background: rgba(255,107,53,0.15); color: var(--accent-hot); white-space: nowrap; flex-shrink: 0; }
    .endpoint-path { font-size: 13px; font-family: 'JetBrains Mono', monospace; color: rgba(255,255,255,0.85); }
    .endpoint-desc { font-size: 12px; color: var(--cool-400); margin-top: 2px; font-family: 'Sora', sans-serif; }
    .code-block { background: #1E293B; border: 1px solid rgba(255,255,255,0.06); border-radius: var(--radius); overflow: hidden; }
    .code-block-header { display: flex; align-items: center; justify-content: space-between; padding: 10px 16px; border-bottom: 1px solid rgba(255,255,255,0.06); }
    .code-tab { font-size: 12px; color: var(--cool-400); font-family: 'JetBrains Mono', monospace; padding: 4px 10px; border-radius: var(--radius-sm); background: rgba(255,255,255,0.06); }
    .code-block pre { padding: 20px; overflow-x: auto; font-size: 13px; line-height: 1.7; font-family: 'JetBrains Mono', monospace; }
    .j-key { color: var(--accent-hot); } .j-str { color: #86EFAC; } .j-num { color: #FDA4AF; } .j-punc { color: var(--cool-400); }
    .pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 48px; align-items: start; }
    .pricing-card { border: 1px solid var(--cool-200); border-radius: var(--radius); padding: 32px; background: var(--white); transition: box-shadow 0.2s, border-color 0.2s; }
    .pricing-card:hover { box-shadow: var(--shadow-md); }
    .pricing-card.featured { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); position: relative; }
    .featured-badge { position: absolute; top: -1px; left: 50%; transform: translateX(-50%); background: var(--accent); color: #fff; font-size: 11px; font-weight: 700; letter-spacing: 0.04em; padding: 4px 16px; border-radius: 0 0 var(--radius-sm) var(--radius-sm); }
    .pricing-tier { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--cool-500); margin-bottom: 12px; }
    .pricing-price { font-size: 48px; font-weight: 800; letter-spacing: -0.04em; color: var(--ink); line-height: 1; margin-bottom: 4px; }
    .pricing-price sup { font-size: 24px; font-weight: 700; vertical-align: top; margin-top: 6px; display: inline-block; }
    .pricing-period { font-size: 14px; color: var(--cool-400); margin-bottom: 24px; }
    .pricing-divider { border: none; border-top: 1px solid var(--cool-200); margin: 0 0 24px; }
    .pricing-descriptor { font-size: 14px; color: var(--cool-600); line-height: 1.55; margin-bottom: 28px; min-height: 44px; }
    .pricing-features { list-style: none; display: flex; flex-direction: column; gap: 10px; margin-bottom: 28px; }
    .pricing-features li { font-size: 14px; color: var(--cool-600); line-height: 1.5; display: flex; align-items: center; gap: 10px; }
    .pricing-features li::before { content: ''; width: 18px; height: 18px; flex-shrink: 0; border-radius: 50%; background: var(--accent-bg); background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 16 16' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M3.5 8L6.5 11L12.5 5' stroke='%23FF6B35' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E"); background-size: 16px 16px; background-position: center; background-repeat: no-repeat; }
    .pricing-btn { display: block; width: 100%; padding: 12px; text-align: center; border-radius: var(--radius); font-size: 14px; font-weight: 600; font-family: inherit; cursor: pointer; text-decoration: none; transition: all 0.15s; }
    .pricing-btn:active { transform: scale(0.97); }
    .pricing-btn-outline { border: 1px solid var(--cool-200); color: var(--cool-600); background: transparent; }
    .pricing-btn-outline:hover { border-color: var(--accent); color: var(--accent); }
    .pricing-btn-solid { background: var(--accent); color: #fff; border: 1px solid var(--accent); }
    .pricing-btn-solid:hover { background: var(--accent-dark); border-color: var(--accent-dark); }
    .pricing-note { text-align: center; font-size: 14px; color: var(--cool-400); margin-top: 20px; }
    .footer-cta { text-align: center; padding: 88px 24px; background: var(--cool-50); border-top: 1px solid var(--cool-200); }
    .footer-cta h2 { font-size: clamp(30px, 4.5vw, 48px); font-weight: 800; letter-spacing: -0.03em; margin-bottom: 14px; }
    .footer-cta .sub { font-size: 17px; color: var(--cool-500); margin-bottom: 36px; }
    .footer-form { display: flex; gap: 8px; max-width: 460px; margin: 0 auto 14px; }
    .footer-form input[type="email"] { flex: 1; padding: 14px 16px; border-radius: var(--radius); border: 1px solid var(--cool-200); font-size: 15px; font-family: inherit; color: var(--ink); background: var(--white); outline: none; transition: border-color 0.2s, box-shadow 0.2s; }
    .footer-form input[type="email"]:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(255,107,53,0.12); }
    .footer-form input[type="email"]::placeholder { color: var(--cool-400); }
    .footer-form button { padding: 14px 28px; background: var(--accent); color: #fff; border: none; border-radius: var(--radius); font-size: 15px; font-weight: 600; font-family: inherit; cursor: pointer; transition: background 0.15s, transform 0.1s; }
    .footer-form button:hover { background: var(--accent-dark); }
    .footer-form button:active { transform: scale(0.97); }
    .footer-success { display: none; background: var(--green-bg); border: 1px solid #A7F3D0; color: #065F46; padding: 14px 20px; border-radius: var(--radius); font-size: 15px; font-weight: 500; max-width: 460px; margin: 0 auto 14px; }
    .footer-note { font-size: 13px; color: var(--cool-400); }
    footer { border-top: 1px solid var(--cool-200); padding: 20px 24px; background: var(--white); }
    .footer-inner { max-width: var(--max-w); margin: 0 auto; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
    .footer-logo { font-size: 15px; font-weight: 700; letter-spacing: -0.03em; color: var(--cool-500); }
    footer p { font-size: 13px; color: var(--cool-400); }
    @media (max-width: 900px) { .api-layout { grid-template-columns: 1fr; } .pricing-grid { grid-template-columns: 1fr; max-width: 400px; margin-left: auto; margin-right: auto; } }
    @media (max-width: 768px) { .features-grid { grid-template-columns: 1fr; } .steps { grid-template-columns: 1fr; gap: 24px; } .hero-stats { grid-template-columns: repeat(2, 1fr); } .hero-stat:nth-child(3) { border-left: none; } }
    @media (max-width: 640px) { .nav-links { display: none; } .nav-mobile-toggle { display: flex; align-items: center; background: var(--accent); color: #fff; border: none; border-radius: var(--radius); padding: 8px 16px; font-size: 13px; font-weight: 600; font-family: inherit; cursor: pointer; text-decoration: none; } .hero-form, .footer-form { flex-direction: column; } .hero-form input, .hero-form button, .footer-form input, .footer-form button { width: 100%; } }

/* --- Coverage checker --- */
.checker { background: var(--white); border: 1px solid var(--cool-200); border-radius: var(--radius); padding: 24px; max-width: 560px; margin: 0 auto; }
.checker h3 { font-size: 20px; font-weight: 700; margin-bottom: 6px; }
.checker p.checker-sub { font-size: 14px; color: var(--cool-500); margin-bottom: 16px; }
.checker-form { display: flex; gap: 8px; }
.checker-form input[type="text"] { flex: 1; padding: 12px 14px; border: 1px solid var(--cool-200); border-radius: var(--radius); font-size: 15px; font-family: inherit; outline: none; }
.checker-form input[type="text"]:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(255,107,53,0.12); }
.checker-form button { padding: 12px 22px; background: var(--accent); color: #fff; border: none; border-radius: var(--radius); font-size: 15px; font-weight: 600; font-family: inherit; cursor: pointer; }
.checker-form button:hover { background: var(--accent-dark); }
.checker-result { margin-top: 16px; padding: 16px; border-radius: var(--radius); font-size: 15px; line-height: 1.55; }
.checker-result--live { background: var(--green-bg); border: 1px solid #A7F3D0; color: #065F46; }
.checker-result--notify { background: var(--accent-bg); border: 1px solid #FED7BE; color: var(--ink); }
.checker-result--notfound { background: var(--cool-50); border: 1px solid var(--cool-200); color: var(--cool-700); }
.checker-result--loading { background: var(--cool-50); color: var(--cool-500); }
.checker-result__actions { margin-top: 12px; display: flex; gap: 8px; }
.checker-result__actions a { display: inline-block; width: auto; padding: 8px 16px; font-size: 13px; }
.checker-notify-form { margin-top: 12px; display: flex; gap: 8px; }
.checker-notify-form input { flex: 1; padding: 10px 12px; border: 1px solid var(--cool-200); border-radius: var(--radius); font-size: 14px; font-family: inherit; }
.checker-notify-form button { padding: 10px 18px; background: var(--accent); color: #fff; border: none; border-radius: var(--radius); font-size: 14px; font-weight: 600; cursor: pointer; }
.checker-result__success { margin-top: 12px; color: #065F46; font-weight: 600; }