:root {
  --ink: #102a3a;
  --ink-deep: #071d2b;
  --ink-soft: #365568;
  --muted: #647b89;
  --line: #dce8e9;
  --line-strong: #c8dbdd;
  --paper: #ffffff;
  --canvas: #f7fbfb;
  --tint: #edf7f6;
  --teal: #087f7a;
  --teal-dark: #05635f;
  --teal-soft: #d8f1ef;
  --navy: #0c3b46;
  --navy-2: #082f3a;
  --sky: #dff2f4;
  --success: #067647;
  --danger: #b42318;
  --warning: #9a5b00;
  --shadow-sm: 0 4px 14px rgba(13, 52, 62, 0.07);
  --shadow-md: 0 18px 50px rgba(13, 52, 62, 0.11);
  --shadow-lg: 0 30px 90px rgba(10, 54, 65, 0.16);
  --header-bg: rgba(255, 255, 255, 0.93);
  --header-border: rgba(210, 226, 228, 0.88);
  --paper-glass: rgba(255, 255, 255, 0.96);
  --glass-surface: rgba(255, 255, 255, 0.88);
  --input-bg: #f9fcfc;
  --surface-soft: #f8fbfb;
  --surface-subtle: #f4f9f9;
  --hero-from: #eef8f7;
  --hero-mid: #f7fbfb;
  --hero-end: #ffffff;
  --notice-bg: #eef8f6;
  --notice-border: #cfe5e1;
  --success-soft: #edfbf3;
  --success-border: #bce6cf;
  --warning-soft: #fff8e9;
  --warning-border: #ead3a4;
  --danger-soft: #fff2f0;
  --danger-border: #f2c6c2;
  --brand-cyan: #20b9ca;
  --brand-violet: #7156ea;
  --brand-glow: rgba(49, 214, 232, .16);
  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;
  --shell: 1180px;
  --header: 76px;
  color-scheme: light;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
}

:root[data-theme="dark"] {
  --ink: #e0e9f5;
  --ink-deep: #f7faff;
  --ink-soft: #bbc9dc;
  --muted: #91a3bd;
  --line: #253653;
  --line-strong: #385077;
  --paper: #0b1322;
  --canvas: #050914;
  --tint: #101c2f;
  --teal: #0f8794;
  --teal-dark: #66dfeb;
  --teal-soft: #102f3c;
  --navy: #111b2d;
  --navy-2: #030711;
  --sky: #10233a;
  --success: #6ee7ac;
  --danger: #ff9f98;
  --warning: #ffd084;
  --brand-cyan: #31d6e8;
  --brand-violet: #8b71ff;
  --brand-glow: rgba(49, 214, 232, .2);
  --shadow-sm: 0 5px 18px rgba(0, 0, 0, 0.22);
  --shadow-md: 0 20px 54px rgba(0, 0, 0, 0.28);
  --shadow-lg: 0 32px 94px rgba(0, 0, 0, 0.36);
  --header-bg: rgba(5, 9, 20, 0.91);
  --header-border: rgba(56, 80, 119, 0.72);
  --paper-glass: rgba(11, 19, 34, 0.94);
  --glass-surface: rgba(13, 24, 40, 0.92);
  --input-bg: #080f1d;
  --surface-soft: #08101d;
  --surface-subtle: #101a2b;
  --hero-from: #0a1221;
  --hero-mid: #07101e;
  --hero-end: #050914;
  --notice-bg: #102639;
  --notice-border: #294660;
  --success-soft: #0b2b22;
  --success-border: #285c47;
  --warning-soft: #332711;
  --warning-border: #6f5222;
  --danger-soft: #351b22;
  --danger-border: #71333b;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header) + 24px); }
body { margin: 0; color: var(--ink); background: var(--canvas); font-size: 16px; line-height: 1.65; -webkit-font-smoothing: antialiased; }
body, button, input, textarea, select { font: inherit; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
h1, h2, h3, h4, p, ul, ol, dl { margin-top: 0; }
h1, h2, h3, h4 { color: var(--ink-deep); font-weight: 760; line-height: 1.12; letter-spacing: -0.035em; text-wrap: balance; }
h1 { font-size: clamp(2.75rem, 6vw, 5.35rem); }
h2 { font-size: clamp(2rem, 4vw, 3.5rem); }
h3 { font-size: 1.25rem; }
p { color: var(--ink-soft); }
::selection { color: #fff; background: var(--teal); }
:focus-visible { outline: 3px solid rgba(8, 127, 122, 0.28); outline-offset: 3px; }
[hidden] { display: none !important; }
.site-frame { min-height: 100vh; overflow: clip; }
.shell { width: min(var(--shell), calc(100% - 40px)); margin-inline: auto; }
.section { padding: clamp(72px, 9vw, 120px) 0; }
.section-tight { padding: clamp(48px, 6vw, 80px) 0; }
.section-tint { background: var(--tint); border-block: 1px solid rgba(200, 219, 221, 0.72); }
.section-navy { color: #fff; background: var(--navy-2); }
.icon { width: 21px; height: 21px; flex: 0 0 auto; }
.skip-link { position: fixed; z-index: 200; top: 8px; left: 8px; padding: 10px 15px; color: #fff; background: var(--navy-2); border-radius: 8px; transform: translateY(-140%); transition: transform .18s; }
.skip-link:focus { transform: translateY(0); }

/* Header and navigation */
.site-header { position: sticky; z-index: 100; top: 0; height: var(--header); background: var(--header-bg); border-bottom: 1px solid var(--header-border); backdrop-filter: blur(18px); }
.header-inner { width: min(1320px, calc(100% - 40px)); height: 100%; display: flex; align-items: center; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink-deep); text-decoration: none; white-space: nowrap; }
.brand img { width: 38px; height: 38px; background: #050914; border: 1px solid rgba(111, 132, 163, .42); border-radius: 10px; box-shadow: 0 5px 16px rgba(7, 23, 48, .16); }
.brand > span { display: flex; align-items: baseline; font-size: 1.06rem; letter-spacing: -0.035em; }
.brand strong { font-weight: 800; }
.brand em { color: var(--teal); font-style: normal; font-weight: 800; }
.desktop-nav { display: flex; align-items: center; justify-content: center; gap: 4px; margin-inline: auto; }
.desktop-nav a, .header-sign-in { padding: 9px 11px; color: #405d6a; border-radius: 8px; font-size: .9rem; font-weight: 650; text-decoration: none; white-space: nowrap; transition: color .18s, background .18s; }
.desktop-nav a:hover, .desktop-nav a[aria-current="page"], .header-sign-in:hover { color: var(--ink-deep); background: var(--tint); }
.header-actions, .account-actions { display: flex; align-items: center; gap: 8px; }
.header-actions .button { white-space: nowrap; }
.mobile-nav { display: none; margin-left: auto; }
.mobile-nav summary { width: 42px; height: 42px; display: grid; place-items: center; color: var(--ink-deep); border: 1px solid var(--line); border-radius: 10px; list-style: none; }
.mobile-nav summary::-webkit-details-marker { display: none; }
.mobile-nav-panel { position: fixed; top: calc(var(--header) - 1px); right: 0; left: 0; display: grid; gap: 2px; padding: 12px 20px 22px; background: var(--paper); border-bottom: 1px solid var(--line); box-shadow: var(--shadow-md); }
.mobile-nav-panel > a:not(.button), .mobile-account a { padding: 11px 10px; color: var(--ink-soft); border-radius: 8px; font-weight: 680; text-decoration: none; }
.mobile-nav-panel > a[aria-current="page"] { color: var(--teal-dark); background: var(--tint); }
.mobile-account { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin: 8px 0; padding-top: 12px; border-top: 1px solid var(--line); }
.mobile-account a { text-align: center; border: 1px solid var(--line); }

/* Persistent appearance control */
.theme-slot { position: relative; flex: 0 0 42px; width: 42px; }
.theme-switcher { position: relative; }
.theme-switcher summary { list-style: none; }
.theme-switcher summary::-webkit-details-marker { display: none; }
.theme-trigger { width: 42px; height: 42px; display: grid; grid-template-columns: 1fr; place-items: center; padding: 0; color: var(--ink-deep); background: var(--paper); border: 1px solid var(--line); border-radius: 10px; box-shadow: var(--shadow-sm); cursor: pointer; transition: color .18s, background .18s, border-color .18s, transform .18s; }
.theme-trigger:hover { color: var(--teal-dark); border-color: var(--line-strong); transform: translateY(-1px); }
.theme-trigger-symbol { font-size: 1.05rem; line-height: 1; }
.theme-trigger-label, .theme-trigger-current { display: none; }
.theme-menu { position: absolute; z-index: 160; top: calc(100% + 10px); right: 0; width: 190px; display: grid; gap: 4px; padding: 7px; background: var(--paper); border: 1px solid var(--line); border-radius: 12px; box-shadow: var(--shadow-md); }
.theme-option { width: 100%; display: grid; grid-template-columns: 24px 1fr 20px; align-items: center; gap: 8px; padding: 9px 10px; color: var(--ink-soft); background: transparent; border: 0; border-radius: 8px; font-size: .8rem; font-weight: 720; text-align: left; }
.theme-option:hover { color: var(--ink-deep); background: var(--tint); }
.theme-option[aria-pressed="true"] { color: var(--teal-dark); background: var(--teal-soft); }
.theme-option-symbol { display: grid; place-items: center; font-size: .95rem; }
.theme-option-check { visibility: hidden; color: var(--teal-dark); text-align: right; }
.theme-option[aria-pressed="true"] .theme-option-check { visibility: visible; }
.mobile-theme-slot { display: grid; margin: 8px 0 2px; padding-top: 12px; border-top: 1px solid var(--line); }
.theme-switcher-mobile .theme-trigger { width: 100%; height: auto; min-height: 44px; grid-template-columns: 24px 1fr auto; justify-items: start; gap: 9px; padding: 10px 12px; box-shadow: none; }
.theme-switcher-mobile .theme-trigger-label, .theme-switcher-mobile .theme-trigger-current { display: block; }
.theme-switcher-mobile .theme-trigger-current { justify-self: end; color: var(--muted); font-size: .75rem; font-weight: 700; }
.theme-switcher-mobile .theme-menu { position: static; width: 100%; margin-top: 6px; box-shadow: none; }

/* Buttons and shared labels */
.button { min-height: 46px; display: inline-flex; align-items: center; justify-content: center; gap: 9px; padding: 11px 18px; color: var(--ink-deep); background: var(--paper); border: 1px solid transparent; border-radius: 11px; font-weight: 750; line-height: 1.15; text-align: center; text-decoration: none; box-shadow: none; transition: transform .18s, box-shadow .18s, background .18s, border-color .18s; }
.button:hover { transform: translateY(-1px); }
.button-primary { color: #fff; background: var(--teal); border-color: var(--teal); box-shadow: 0 8px 22px rgba(8, 127, 122, .2); }
.button-primary:hover { background: var(--teal-dark); border-color: var(--teal-dark); box-shadow: 0 12px 28px rgba(8, 127, 122, .24); }
.button-secondary { color: var(--ink-deep); background: var(--paper); border-color: var(--line-strong); }
.button-secondary:hover, .button-quiet:hover { border-color: #9bbfc0; box-shadow: var(--shadow-sm); }
.button-quiet { min-height: 40px; color: var(--teal-dark); background: var(--paper); border-color: var(--line); }
.button-small { min-height: 40px; padding: 9px 14px; border-radius: 9px; font-size: .88rem; }
.button-large { min-height: 53px; padding: 14px 21px; }
.button-full { width: 100%; }
.button-white { color: var(--navy-2); background: #fff; }
.button-outline-light { color: #fff; background: transparent; border-color: rgba(255,255,255,.34); }
.button-outline-light:hover { border-color: rgba(255,255,255,.7); background: rgba(255,255,255,.08); }
.button-row, .hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.text-arrow { display: inline-flex; align-items: center; gap: 8px; color: var(--teal-dark); font-weight: 760; text-decoration: none; }
.text-arrow:hover { text-decoration: underline; text-underline-offset: 4px; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 16px; color: var(--teal-dark); font-size: .75rem; font-weight: 820; letter-spacing: .12em; line-height: 1.35; text-transform: uppercase; }
.eyebrow i { width: 7px; height: 7px; display: inline-block; background: var(--teal); border-radius: 99px; box-shadow: 0 0 0 5px var(--teal-soft); }
.eyebrow-light { color: #9ee6df; }

/* Homepage */
.home-hero { position: relative; padding: clamp(54px, 8vw, 104px) 0 88px; background: linear-gradient(180deg, var(--surface-soft) 0%, var(--hero-mid) 68%, var(--hero-end) 100%); }
.hero-glow { position: absolute; top: -220px; right: -120px; width: 650px; height: 650px; background: radial-gradient(circle, rgba(57, 183, 171, .18), rgba(57, 183, 171, 0) 68%); pointer-events: none; }
.home-hero-grid { position: relative; display: grid; grid-template-columns: minmax(0, .92fr) minmax(500px, 1.08fr); align-items: center; gap: clamp(42px, 7vw, 94px); }
.hero-copy h1 { max-width: 760px; margin-bottom: 25px; font-size: clamp(3rem, 5vw, 4.65rem); letter-spacing: -.06em; }
.hero-lead { max-width: 660px; margin-bottom: 30px; color: #395d6a; font-size: clamp(1.08rem, 2vw, 1.28rem); line-height: 1.65; }
.hero-checks { display: flex; flex-wrap: wrap; gap: 10px 18px; margin: 26px 0 0; padding: 0; list-style: none; color: #4f6b77; font-size: .86rem; font-weight: 650; }
.hero-checks li { display: inline-flex; align-items: center; gap: 7px; }
.hero-checks .icon { width: 17px; height: 17px; color: var(--teal); }
.hero-checks.vertical { display: grid; margin-top: 26px; }
.hero-lookup { position: relative; }
.hero-lookup::before { content: ""; position: absolute; inset: -16px; z-index: -1; background: repeating-linear-gradient(90deg, transparent 0 29px, rgba(8,127,122,.06) 29px 30px), repeating-linear-gradient(0deg, transparent 0 29px, rgba(8,127,122,.06) 29px 30px); border-radius: 32px; mask-image: linear-gradient(#000, transparent 92%); }

/* Lookup card */
.lookup-card { position: relative; padding: clamp(22px, 3vw, 32px); background: var(--paper-glass); border: 1px solid var(--line-strong); border-radius: 22px; box-shadow: var(--shadow-lg); }
.lookup-card-head { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 26px; padding-bottom: 18px; border-bottom: 1px solid var(--line); }
.lookup-card-head > span { display: inline-flex; align-items: center; gap: 9px; color: var(--ink-deep); font-size: .9rem; font-weight: 780; }
.lookup-card-head .icon { color: var(--teal); }
.lookup-card-head small { color: var(--muted); }
.lookup-form > label { display: block; margin-bottom: 8px; color: var(--ink-deep); font-size: .86rem; font-weight: 750; }
.lookup-control { position: relative; display: flex; align-items: center; gap: 8px; }
.lookup-control > .icon { position: absolute; z-index: 1; top: 17px; left: 15px; width: 22px; height: 22px; color: #6b858f; pointer-events: none; }
.lookup-control input { min-width: 0; width: 100%; height: 56px; padding: 12px 154px 12px 48px; color: var(--ink-deep); background: var(--input-bg); border: 1px solid var(--line-strong); border-radius: 12px; font-size: 1.05rem; font-weight: 650; outline: none; transition: border-color .18s, box-shadow .18s, background .18s; }
.lookup-control input:focus { background: var(--paper); border-color: var(--teal); box-shadow: 0 0 0 4px rgba(8,127,122,.1); }
.lookup-control .lookup-submit { position: absolute; right: 5px; min-height: 46px; padding: 10px 14px; }
.lookup-submit:disabled { cursor: not-allowed; opacity: .58; transform: none; box-shadow: none; }
.verification-row { min-height: 76px; display: grid; grid-template-columns: minmax(160px, 1fr) minmax(200px, 300px); align-items: center; gap: 16px; margin-top: 16px; padding: 12px 14px; background: var(--canvas); border: 1px solid var(--line); border-radius: 12px; }
.verification-row > div:first-child { display: grid; gap: 2px; }
.verification-row strong { display: flex; align-items: center; gap: 7px; color: var(--ink); font-size: .8rem; }
.verification-row strong .icon { width: 16px; height: 16px; color: var(--teal); }
.verification-row span { color: var(--muted); font-size: .72rem; }
.turnstile-slot { min-height: 65px; min-width: 200px; display: flex; justify-content: flex-end; overflow: hidden; }
.lookup-status { margin: 13px 2px 0; color: var(--muted); font-size: .78rem; }
.lookup-status[data-state="error"] { color: var(--danger); }
.lookup-status[data-state="success"] { color: var(--success); }
.lookup-result { margin-top: 20px; padding-top: 20px; border-top: 1px solid var(--line); }
.result-summary { position: relative; padding: 18px; background: linear-gradient(135deg, var(--teal-soft), var(--surface-soft)); border: 1px solid var(--line-strong); border-radius: 14px; }
.result-summary .result-state { display: flex; align-items: center; gap: 6px; color: var(--success); font-size: .73rem; font-weight: 820; letter-spacing: .08em; text-transform: uppercase; }
.result-state .icon { width: 16px; height: 16px; }
.result-summary > strong { display: block; margin-top: 7px; color: var(--ink-deep); font-size: 2.4rem; line-height: 1; letter-spacing: -.05em; }
.result-summary p { margin: 6px 0 0; font-size: .82rem; }
.result-summary code { position: absolute; top: 19px; right: 18px; padding: 6px 9px; color: var(--ink); background: var(--paper); border: 1px solid var(--line); border-radius: 7px; font-size: .78rem; }
.result-sample { display: grid; margin-top: 12px; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.result-sample > div { display: grid; grid-template-columns: 38px 1fr; gap: 10px; padding: 10px 13px; background: var(--paper); border-bottom: 1px solid var(--line); }
.result-sample > div:last-child { border-bottom: 0; }
.result-sample span { color: #8aa0a7; font-size: .72rem; }
.result-sample strong { min-width: 0; overflow: hidden; color: var(--ink); font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .82rem; text-overflow: ellipsis; white-space: nowrap; }
.result-more { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 12px; margin-top: 12px; padding: 13px; color: var(--ink); background: var(--surface-soft); border: 1px solid var(--line); border-radius: 12px; }
.result-more > .icon { color: var(--teal); }
.result-more strong, .result-more p { display: block; margin: 0; font-size: .78rem; }
.result-more p { color: var(--muted); }
.result-more a { display: inline-flex; align-items: center; gap: 5px; color: var(--teal-dark); font-size: .78rem; font-weight: 780; text-decoration: none; }
.result-more a .icon { width: 16px; }
.lookup-footnote { margin: 18px 0 -4px; padding-top: 15px; color: #748a92; border-top: 1px dashed var(--line-strong); font-size: .72rem; line-height: 1.5; }

.trust-strip { background: var(--paper); border-block: 1px solid var(--line); }
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.trust-grid > div { display: grid; gap: 2px; padding: 24px clamp(12px, 2vw, 27px); border-right: 1px solid var(--line); }
.trust-grid > div:first-child { padding-left: 0; }
.trust-grid > div:last-child { border-right: 0; }
.trust-grid strong { color: var(--ink); font-size: .88rem; }
.trust-grid span { color: var(--muted); font-size: .76rem; }
.split-heading { display: grid; grid-template-columns: minmax(0, 1fr) minmax(320px, .7fr); align-items: end; gap: 60px; margin-bottom: 44px; }
.split-heading h2, .section-heading h2 { max-width: 760px; margin-bottom: 0; }
.split-heading > p { margin: 0; font-size: 1.02rem; }
.section-heading { max-width: 780px; margin-bottom: 42px; }
.section-heading.center { margin-inline: auto; text-align: center; }
.section-heading.center h2 { margin-inline: auto; }
.section-heading.center p { max-width: 670px; margin: 18px auto 0; }
.feature-grid { display: grid; gap: 18px; }
.feature-grid-3 { grid-template-columns: repeat(3, 1fr); }
.feature-card { position: relative; min-height: 310px; padding: 30px; background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
.feature-card > .icon { width: 31px; height: 31px; margin-bottom: 45px; color: var(--teal); }
.feature-card h3 { margin-bottom: 13px; font-size: 1.42rem; }
.feature-card p { margin-bottom: 22px; }
.feature-card a { display: inline-flex; align-items: center; gap: 7px; color: var(--teal-dark); font-size: .85rem; font-weight: 760; text-decoration: none; }
.feature-card a .icon { width: 17px; }
.feature-number { position: absolute; top: 25px; right: 27px; color: #a2b4b9; font-size: .72rem; font-weight: 800; letter-spacing: .1em; }
.feature-card-highlight { background: var(--navy); border-color: var(--navy); }
.feature-card-highlight h3, .feature-card-highlight p, .feature-card-highlight a { color: #fff; }
.feature-card-highlight p { color: #c1d7da; }
.feature-card-highlight .feature-number { color: #83b3b7; }
.feature-card-highlight > .icon { color: #83ded5; }
.product-showcase { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(340px, .9fr); align-items: center; gap: clamp(42px, 8vw, 90px); }
.showcase-ui { position: relative; padding: 20px; background: var(--paper); border: 1px solid var(--line-strong); border-radius: 22px; box-shadow: var(--shadow-lg); }
.showcase-ui::after { content: ""; position: absolute; z-index: -1; right: -24px; bottom: -24px; width: 68%; height: 68%; background: var(--teal-soft); border-radius: 24px; }
.showcase-bar { display: flex; align-items: center; gap: 6px; margin: -20px -20px 18px; padding: 15px 18px; background: var(--canvas); border-bottom: 1px solid var(--line); border-radius: 22px 22px 0 0; }
.showcase-bar > span { width: 8px; height: 8px; background: #c6d7d9; border-radius: 50%; }
.showcase-bar strong { margin-left: 8px; color: #69818b; font-size: .74rem; }
.showcase-summary { display: grid; grid-template-columns: 1.2fr .8fr .7fr; gap: 8px; margin-bottom: 14px; }
.showcase-summary > div { min-width: 0; display: grid; gap: 3px; padding: 13px; background: var(--canvas); border: 1px solid var(--line); border-radius: 10px; }
.showcase-summary small { color: var(--muted); font-size: .65rem; }
.showcase-summary code, .showcase-summary strong, .showcase-summary b { overflow: hidden; color: var(--ink); font-size: .83rem; text-overflow: ellipsis; }
.showcase-summary b { color: var(--success); }
.showcase-table { display: grid; grid-template-columns: 40px 1fr 90px; align-items: center; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.showcase-table > * { min-width: 0; margin: 0; padding: 10px 12px; border-bottom: 1px solid var(--line); }
.showcase-table > :nth-last-child(-n+3) { border-bottom: 0; }
.showcase-table > span { color: var(--muted); background: var(--surface-subtle); font-size: .65rem; font-weight: 730; }
.showcase-table > i { color: #91a4aa; font-size: .68rem; font-style: normal; }
.showcase-table > strong { overflow: hidden; color: var(--ink); font-family: ui-monospace, monospace; font-size: .74rem; text-overflow: ellipsis; }
.showcase-table > b { color: var(--success); font-size: .7rem; }
.showcase-ui > p { margin: 12px 0 0; color: #83979e; font-size: .64rem; }
.showcase-copy h2 { margin-bottom: 21px; }
.showcase-copy > p { font-size: 1.04rem; }
.check-list { display: grid; gap: 12px; margin: 28px 0; padding: 0; list-style: none; }
.check-list li { display: flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 650; }
.check-list .icon { width: 18px; color: var(--teal); }
.usecase-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.usecase-card { position: relative; min-height: 265px; display: flex; flex-direction: column; padding: 30px; color: var(--ink); background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius-lg); text-decoration: none; transition: transform .2s, box-shadow .2s, border-color .2s; }
.usecase-card:hover { transform: translateY(-4px); border-color: #afd1d0; box-shadow: var(--shadow-md); }
.usecase-card > span { color: var(--teal); font-size: .72rem; font-weight: 800; letter-spacing: .1em; }
.usecase-card h3 { margin: auto 0 10px; font-size: 1.45rem; }
.usecase-card p { margin-bottom: 12px; }
.usecase-card > .icon { position: absolute; top: 28px; right: 28px; color: var(--teal); transition: transform .2s; }
.usecase-card:hover > .icon { transform: translateX(4px); }
.evidence-grid { display: grid; grid-template-columns: minmax(0, .9fr) minmax(420px, 1.1fr); align-items: center; gap: clamp(45px, 9vw, 110px); }
.evidence-grid h2 { color: #fff; }
.evidence-grid > div > p { margin-bottom: 28px; color: #bed2d5; font-size: 1.04rem; }
.evidence-grid dl { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; margin: 0; overflow: hidden; background: rgba(255,255,255,.13); border: 1px solid rgba(255,255,255,.13); border-radius: 18px; }
.evidence-grid dl > div { min-height: 150px; padding: 25px; background: var(--navy-2); }
.evidence-grid dt { margin-bottom: 10px; color: #8be0d8; font-weight: 800; }
.evidence-grid dd { margin: 0; color: #bcd0d3; font-size: .88rem; }

/* Pricing */
.pricing-grid-home, .pricing-grid-main { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; align-items: stretch; }
.price-card { position: relative; display: flex; flex-direction: column; padding: 31px; background: var(--paper); border: 1px solid var(--line); border-radius: 22px; box-shadow: var(--shadow-sm); }
.price-card.featured { border: 2px solid var(--teal); box-shadow: 0 22px 55px rgba(8,127,122,.14); }
.plan-label { display: block; margin-bottom: 13px; color: var(--teal-dark); font-size: .71rem; font-weight: 820; letter-spacing: .1em; text-transform: uppercase; }
.popular-pill { position: absolute; top: -14px; right: 22px; padding: 6px 10px; color: #fff; background: var(--teal); border-radius: 99px; font-size: .67rem; font-weight: 800; letter-spacing: .04em; }
.price-card h2, .price-card h3 { margin-bottom: 9px; font-size: 1.55rem; }
.price-card > p { min-height: 78px; margin-bottom: 16px; font-size: .91rem; }
.price { display: flex; align-items: flex-start; gap: 2px; margin: 7px 0 25px; color: var(--ink-deep); }
.price small { padding-top: 8px; font-size: 1rem; font-weight: 750; }
.price strong { font-size: 3.2rem; line-height: 1; letter-spacing: -.06em; }
.price span { align-self: flex-end; margin: 0 0 5px 7px; color: var(--muted); font-size: .78rem; }
.price-card ul { display: grid; gap: 11px; margin: 0 0 27px; padding: 23px 0 0; border-top: 1px solid var(--line); list-style: none; }
.price-card li { display: flex; align-items: flex-start; gap: 9px; color: #405e6b; font-size: .83rem; }
.price-card li .icon { width: 17px; height: 17px; margin-top: 3px; color: var(--teal); }
.price-card .button { margin-top: auto; }
.price-card .card-fine { display: block; margin-top: 12px; color: var(--muted); text-align: center; }
.pricing-note { display: flex; align-items: flex-start; gap: 12px; margin-top: 22px; padding: 15px 18px; background: var(--surface-soft); border: 1px solid var(--line); border-radius: 12px; }
.pricing-note .icon { width: 19px; margin-top: 2px; color: var(--teal); }
.pricing-note p { margin: 0; font-size: .79rem; }
.pricing-hero { padding: clamp(55px, 8vw, 98px) 0 70px; text-align: center; background: linear-gradient(180deg, var(--hero-from), var(--hero-mid)); border-bottom: 1px solid var(--line); }
.pricing-hero .breadcrumbs { justify-content: center; }
.pricing-hero h1 { max-width: 900px; margin: 0 auto 22px; font-size: clamp(2.8rem, 5vw, 4.35rem); }
.pricing-hero > .shell > p { max-width: 700px; margin: 0 auto 26px; font-size: 1.12rem; }
.billing-switch { width: fit-content; display: flex; gap: 3px; margin: 30px auto 0; padding: 4px; background: var(--line); border: 1px solid var(--line-strong); border-radius: 12px; }
.billing-switch button { min-width: 128px; padding: 9px 15px; color: var(--ink-soft); background: transparent; border: 0; border-radius: 8px; font-size: .84rem; font-weight: 750; }
.billing-switch button.active { color: var(--ink-deep); background: var(--paper); box-shadow: var(--shadow-sm); }
.billing-switch button span { margin-left: 5px; padding: 2px 5px; color: var(--success); background: var(--success-soft); border-radius: 99px; font-size: .62rem; }
.pricing-section { padding-top: 70px; }
.no-js-plans { display: flex; flex-wrap: wrap; gap: 10px 18px; margin-top: 22px; padding: 14px 17px; background: var(--paper); border: 1px solid var(--line); border-radius: 12px; }
.no-js-plans p { width: 100%; margin: 0; font-weight: 700; }
.no-js-plans a { color: var(--teal-dark); }
.comparison-wrap { overflow-x: auto; background: var(--paper); border: 1px solid var(--line); border-radius: 16px; box-shadow: var(--shadow-sm); }
.comparison-table { width: 100%; min-width: 850px; border-collapse: collapse; font-size: .84rem; }
.comparison-table th, .comparison-table td { padding: 15px 16px; color: var(--ink-soft); border-bottom: 1px solid var(--line); text-align: left; }
.comparison-table thead th { color: var(--ink); background: var(--surface-subtle); font-size: .72rem; letter-spacing: .04em; text-transform: uppercase; }
.comparison-table tbody th { color: var(--ink); }
.comparison-table tr:last-child > * { border-bottom: 0; }
.table-footnote { margin: 14px 4px 0; font-size: .78rem; }
.checkout-steps { display: grid; grid-template-columns: .75fr 1.25fr; gap: clamp(50px, 9vw, 110px); }
.checkout-steps ol { display: grid; gap: 1px; margin: 0; padding: 0; background: var(--line); border: 1px solid var(--line); border-radius: 16px; overflow: hidden; list-style: none; }
.checkout-steps li { display: grid; grid-template-columns: 42px 1fr; gap: 14px; padding: 21px; background: var(--paper); }
.checkout-steps li > span { width: 34px; height: 34px; display: grid; place-items: center; color: var(--teal-dark); background: var(--teal-soft); border-radius: 9px; font-size: .8rem; font-weight: 800; }
.checkout-steps strong { color: var(--ink); }
.checkout-steps p { margin: 3px 0 0; font-size: .84rem; }

/* FAQ and CTA */
.faq-layout { display: grid; grid-template-columns: minmax(270px, .7fr) minmax(420px, 1.3fr); align-items: start; gap: clamp(45px, 9vw, 110px); }
.faq-layout > div:first-child { position: sticky; top: calc(var(--header) + 28px); }
.faq-list { display: grid; border-top: 1px solid var(--line-strong); }
.faq-list details { border-bottom: 1px solid var(--line-strong); }
.faq-list summary { position: relative; padding: 20px 42px 20px 0; color: var(--ink); font-weight: 720; list-style: none; cursor: pointer; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; top: 16px; right: 3px; width: 29px; height: 29px; display: grid; place-items: center; color: var(--teal-dark); background: var(--paper); border: 1px solid var(--line); border-radius: 50%; font-size: 1.05rem; font-weight: 500; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { margin: -4px 45px 20px 0; font-size: .9rem; }
.cta-panel { display: flex; align-items: center; justify-content: space-between; gap: 50px; padding: clamp(32px, 5vw, 55px); color: #fff; background: linear-gradient(125deg, var(--navy-2), #0b5057); border-radius: 24px; box-shadow: var(--shadow-md); }
.cta-panel h2 { max-width: 650px; margin-bottom: 12px; color: #fff; font-size: clamp(1.8rem, 3.3vw, 3rem); }
.cta-panel p { max-width: 650px; margin: 0; color: #bad1d4; }
.cta-panel .button-row { flex: 0 0 auto; }

/* Lookup page */
.lookup-hero { padding: 48px 0 90px; background: linear-gradient(180deg, var(--hero-from), var(--surface-soft)); border-bottom: 1px solid var(--line); }
.lookup-hero-grid { display: grid; grid-template-columns: minmax(0, .8fr) minmax(500px, 1.2fr); align-items: center; gap: clamp(45px, 8vw, 95px); margin-top: 35px; }
.lookup-hero-grid h1 { margin-bottom: 22px; font-size: clamp(3rem, 5vw, 4.7rem); }
.lookup-hero-grid > div:first-child > p { font-size: 1.1rem; }
.interpretation-grid { display: grid; grid-template-columns: .85fr 1.15fr; align-items: start; gap: clamp(50px, 8vw, 100px); }
.interpretation-grid h2 { margin-bottom: 22px; }
.principle-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.principle-cards article { min-height: 235px; padding: 23px; background: var(--paper); border: 1px solid var(--line); border-radius: 16px; }
.principle-cards .icon { width: 28px; height: 28px; margin-bottom: 42px; color: var(--teal); }
.principle-cards h3 { font-size: 1.05rem; }
.principle-cards p { margin: 0; font-size: .8rem; }
.preview-next { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 70px; padding: 43px; background: var(--paper); border: 1px solid var(--line); border-radius: 21px; }
.preview-next h2 { margin-bottom: 13px; }
.preview-next > div:last-child { min-width: 230px; display: grid; justify-items: stretch; text-align: center; }
.preview-next > div:last-child > strong { color: var(--ink-deep); font-size: 3rem; letter-spacing: -.06em; line-height: 1; }
.preview-next > div:last-child > strong small { font-size: 1rem; }
.preview-next > div:last-child > span { margin: 6px 0 14px; color: var(--muted); font-size: .78rem; }
.preview-next > div:last-child > a:last-child { margin-top: 10px; color: var(--teal-dark); font-size: .78rem; }

/* Content pages */
.breadcrumbs { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-bottom: 36px; color: #71868e; font-size: .75rem; }
.breadcrumbs a { text-decoration: none; }
.breadcrumbs a:hover { color: var(--teal-dark); text-decoration: underline; }
.breadcrumbs i { color: #a9b9bd; font-style: normal; }
.content-hero { padding: 38px 0 clamp(62px, 8vw, 95px); background: linear-gradient(180deg, var(--hero-from), var(--hero-mid)); border-bottom: 1px solid var(--line); }
.content-hero-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(360px, .8fr); align-items: end; gap: clamp(50px, 9vw, 110px); }
.content-hero h1 { max-width: 850px; margin-bottom: 23px; font-size: clamp(2.8rem, 5vw, 4.4rem); }
.content-hero-grid > div > p { max-width: 760px; margin: 0; font-size: 1.12rem; }
.hero-facts { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; margin: 0; overflow: hidden; background: var(--line-strong); border: 1px solid var(--line-strong); border-radius: 15px; }
.hero-facts > div { min-height: 95px; padding: 17px; background: var(--glass-surface); }
.hero-facts dt { margin-bottom: 5px; color: var(--muted); font-size: .68rem; font-weight: 740; letter-spacing: .06em; text-transform: uppercase; }
.hero-facts dd { margin: 0; color: var(--ink); font-size: .87rem; font-weight: 750; }
.content-section { background: var(--paper); }
.article-grid { display: grid; grid-template-columns: 220px minmax(0, 790px); justify-content: center; gap: clamp(50px, 9vw, 110px); }
.toc { position: sticky; top: calc(var(--header) + 30px); align-self: start; display: grid; gap: 2px; padding: 19px; background: var(--canvas); border: 1px solid var(--line); border-radius: 13px; }
.toc > span { margin-bottom: 8px; color: var(--ink); font-size: .72rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.toc a { padding: 7px 8px; color: var(--muted); border-radius: 7px; font-size: .76rem; line-height: 1.35; text-decoration: none; }
.toc a:hover { color: var(--teal-dark); background: var(--paper); }
.prose { min-width: 0; }
.prose > section { padding: 0 0 52px; margin: 0 0 52px; border-bottom: 1px solid var(--line); scroll-margin-top: calc(var(--header) + 24px); }
.prose > section:last-of-type { margin-bottom: 0; }
.prose h2 { margin-bottom: 21px; font-size: clamp(1.75rem, 3.4vw, 2.65rem); }
.prose h3 { margin-top: 30px; }
.prose p { margin-bottom: 19px; font-size: 1.01rem; line-height: 1.78; }
.prose ul, .prose ol { display: grid; gap: 11px; margin: 22px 0; padding-left: 24px; color: var(--ink-soft); }
.prose li { padding-left: 5px; }
.prose li strong { color: var(--ink); }
.prose pre { overflow-x: auto; margin: 24px 0; padding: 20px; color: #d3eff0; background: var(--navy-2); border-radius: 13px; font-size: .84rem; }
.content-notice { display: grid; grid-template-columns: auto 1fr; gap: 12px; margin-bottom: 45px; padding: 18px; color: var(--ink); background: var(--notice-bg); border: 1px solid var(--notice-border); border-radius: 13px; }
.content-notice .icon { color: var(--teal); }
.content-notice p { margin: 0; font-size: .86rem; line-height: 1.6; }
.inline-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 28px; }
.inline-steps > div { min-height: 165px; padding: 17px; background: var(--canvas); border: 1px solid var(--line); border-radius: 11px; }
.inline-steps span { color: var(--teal); font-size: .68rem; font-weight: 800; }
.inline-steps strong { display: block; margin: 27px 0 5px; color: var(--ink); }
.inline-steps p { margin: 0; font-size: .75rem; line-height: 1.5; }
.related-section { padding-top: 52px; }
.related-section h2 { font-size: 1.65rem; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.related-card { position: relative; min-height: 150px; display: flex; flex-direction: column; padding: 18px; color: var(--ink); background: var(--canvas); border: 1px solid var(--line); border-radius: 12px; text-decoration: none; }
.related-card span { color: var(--teal-dark); font-size: .65rem; font-weight: 800; letter-spacing: .07em; text-transform: uppercase; }
.related-card strong { margin-top: auto; font-size: .87rem; line-height: 1.35; }
.related-card > .icon { position: absolute; top: 16px; right: 16px; width: 17px; color: var(--teal); }

/* Resources, journal, contact */
.resource-groups { display: grid; gap: 82px; }
.group-heading { display: flex; align-items: end; justify-content: space-between; gap: 40px; margin-bottom: 28px; }
.group-heading h2 { max-width: 690px; margin: 0; }
.resource-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.resource-card { position: relative; min-height: 235px; display: flex; flex-direction: column; padding: 25px; color: var(--ink); background: var(--paper); border: 1px solid var(--line); border-radius: 18px; text-decoration: none; transition: transform .2s, box-shadow .2s; }
.resource-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.resource-card > span { color: var(--teal-dark); font-size: .7rem; font-weight: 800; letter-spacing: .07em; text-transform: uppercase; }
.resource-card h3 { margin: auto 0 9px; font-size: 1.22rem; }
.resource-card p { margin: 0; font-size: .83rem; }
.resource-card > .icon { position: absolute; top: 22px; right: 22px; width: 19px; color: var(--teal); }
.resource-card-large { min-height: 300px; background: linear-gradient(145deg, var(--paper), var(--surface-soft)); }
.resource-card-large h3 { font-size: 1.55rem; }
.faq-page-grid { display: grid; grid-template-columns: 220px minmax(0, 780px); justify-content: center; gap: clamp(50px, 9vw, 110px); }
.faq-page-grid aside { position: sticky; top: calc(var(--header) + 28px); align-self: start; display: grid; padding: 18px; background: var(--canvas); border: 1px solid var(--line); border-radius: 12px; }
.faq-page-grid aside span { margin: 4px 7px 10px; color: var(--ink); font-size: .72rem; font-weight: 800; text-transform: uppercase; }
.faq-page-grid aside a { padding: 7px; color: var(--muted); font-size: .76rem; text-decoration: none; }
.faq-list-large summary { padding-block: 23px; font-size: 1.02rem; }
.faq-list-large details p { font-size: .95rem; }
.contact-grid { display: grid; grid-template-columns: 1.3fr .7fr; align-items: start; gap: 55px; }
.contact-primary h2 { max-width: 700px; }
.contact-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; margin-top: 30px; }
.contact-card { position: relative; min-height: 220px; display: flex; flex-direction: column; padding: 25px; color: var(--ink); background: var(--paper); border: 1px solid var(--line); border-radius: 18px; text-decoration: none; box-shadow: var(--shadow-sm); }
.contact-card > span { color: var(--teal-dark); font-size: .7rem; font-weight: 800; text-transform: uppercase; }
.contact-card strong { margin: auto 0 6px; font-size: 1.2rem; }
.contact-card p { margin: 0; font-size: .8rem; }
.contact-card > .icon { position: absolute; top: 22px; right: 22px; width: 18px; color: var(--teal); }
.support-checklist { padding: 28px; background: var(--navy); border-radius: 18px; }
.support-checklist h2 { color: #fff; font-size: 1.4rem; }
.support-checklist ul { display: grid; gap: 13px; margin: 25px 0 0; padding: 0; list-style: none; }
.support-checklist li { display: flex; gap: 9px; color: #c8dbde; font-size: .84rem; }
.support-checklist .icon { width: 17px; color: #7fe0d6; }
.safety-panel { display: grid; grid-template-columns: .85fr 1.15fr; gap: 60px; padding: 38px; background: var(--paper); border: 1px solid var(--line); border-radius: 20px; }
.safety-panel > div:first-child { display: grid; grid-template-columns: auto 1fr; gap: 16px; }
.safety-panel > div:first-child > .icon { width: 34px; height: 34px; color: var(--teal); }
.safety-panel p { margin: 7px 0 0; }
.safety-panel h2 { font-size: 1.4rem; }
.safety-panel ol { margin-bottom: 0; color: var(--ink-soft); }
.journal-grid { display: grid; gap: 20px; }
.journal-feature { display: grid; grid-template-columns: 1.2fr .8fr; min-height: 390px; overflow: hidden; color: var(--ink); background: var(--paper); border: 1px solid var(--line); border-radius: 22px; text-decoration: none; box-shadow: var(--shadow-sm); }
.journal-feature > div:first-child { display: flex; flex-direction: column; padding: clamp(30px, 5vw, 55px); }
.journal-feature span, .journal-coming article > span { color: var(--teal-dark); font-size: .7rem; font-weight: 800; letter-spacing: .07em; text-transform: uppercase; }
.journal-feature h2 { max-width: 620px; margin: auto 0 17px; }
.journal-feature p { max-width: 620px; }
.journal-feature strong { display: inline-flex; align-items: center; gap: 7px; margin-top: 14px; color: var(--teal-dark); }
.journal-feature strong .icon { width: 18px; }
.journal-visual { display: grid; place-content: center; gap: 16px; padding: 35px; color: #fff; background: var(--navy); text-align: center; }
.journal-visual > .icon { width: 64px; height: 64px; margin: auto; color: #79d9d0; }
.journal-visual code { padding: 12px 16px; background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.14); border-radius: 10px; }
.journal-visual span { color: #bcd4d6; text-transform: none; }
.journal-coming { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.journal-coming article { min-height: 280px; display: flex; flex-direction: column; padding: 30px; background: var(--paper); border: 1px solid var(--line); border-radius: 18px; }
.journal-coming h3 { margin: auto 0 12px; font-size: 1.45rem; }
.journal-coming small { color: var(--muted); }
.journal-coming a { display: inline-flex; align-items: center; gap: 7px; margin-top: 13px; color: var(--teal-dark); font-weight: 750; text-decoration: none; }
.journal-coming a .icon { width: 17px; }

/* Footer */
.site-footer { padding-top: 72px; color: #b9ced1; background: #061f2a; }
.footer-main { display: grid; grid-template-columns: minmax(260px, .8fr) minmax(620px, 1.2fr); gap: clamp(55px, 9vw, 120px); padding-bottom: 55px; }
.site-footer .brand { color: #fff; }
.footer-brand > p { max-width: 350px; margin: 22px 0; color: #9db7bc; font-size: .87rem; }
.footer-trust { display: inline-flex; align-items: center; gap: 8px; color: #9edbd5; font-size: .75rem; font-weight: 700; }
.footer-trust .icon { width: 17px; }
.footer-links { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
.footer-links > div { display: grid; align-content: start; gap: 9px; }
.footer-links h2 { margin-bottom: 8px; color: #fff; font-size: .76rem; letter-spacing: .08em; text-transform: uppercase; }
.footer-links a { color: #9db7bc; font-size: .79rem; text-decoration: none; }
.footer-links a:hover { color: #fff; }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 30px; padding-block: 21px; border-top: 1px solid rgba(255,255,255,.1); }
.footer-bottom p { margin: 0; color: #829fa5; font-size: .72rem; }
.footer-bottom a { display: inline-flex; align-items: center; gap: 6px; color: #a9c3c7; font-size: .72rem; text-decoration: none; white-space: nowrap; }
.footer-bottom .icon { width: 15px; }

/* Error */
.not-found { min-height: 68vh; display: grid; place-items: center; padding: 80px 0; text-align: center; }
.not-found .shell { display: grid; justify-items: center; }
.error-code { display: block; margin-bottom: 10px; color: #d3e4e4; font-size: clamp(6rem, 20vw, 13rem); font-weight: 850; line-height: .75; letter-spacing: -.09em; }
.not-found h1 { max-width: 780px; margin-bottom: 18px; font-size: clamp(2.4rem, 5vw, 4.3rem); }
.not-found p { margin-bottom: 25px; }

/* Auth state inserted into public header */
.rid-home-profile, .rid-mobile-profile { display: inline-flex; align-items: center; gap: 8px; color: var(--ink); font-size: .83rem; font-weight: 750; text-decoration: none; }
.rid-home-profile img, .rid-mobile-profile img { width: 32px; height: 32px; object-fit: cover; border: 1px solid var(--line); border-radius: 9px; }
.rid-mobile-profile { width: 100%; justify-content: center; padding: 9px; border: 1px solid var(--line); border-radius: 9px; }

/* Dark-theme contrast refinements for fixed brand and editorial colors */
:root[data-theme="dark"] .desktop-nav a,
:root[data-theme="dark"] .header-sign-in,
:root[data-theme="dark"] .hero-lead,
:root[data-theme="dark"] .hero-checks,
:root[data-theme="dark"] .price-card li,
:root[data-theme="dark"] .breadcrumbs,
:root[data-theme="dark"] .lookup-footnote { color: var(--ink-soft); }
:root[data-theme="dark"] .lookup-control > .icon,
:root[data-theme="dark"] .feature-number,
:root[data-theme="dark"] .showcase-bar strong,
:root[data-theme="dark"] .showcase-ui > p,
:root[data-theme="dark"] .result-sample span { color: var(--muted); }
:root[data-theme="dark"] .showcase-bar > span { background: var(--line-strong); }
:root[data-theme="dark"] .usecase-card:hover { border-color: var(--teal); }
:root[data-theme="dark"] .error-code { color: var(--line-strong); }
:root[data-theme="dark"] .button-primary:hover { background: #0c8f87; border-color: #0c8f87; }
:root[data-theme="dark"] input::placeholder,
:root[data-theme="dark"] textarea::placeholder { color: #718b92; opacity: 1; }
:root[data-theme="dark"] { scrollbar-color: var(--line-strong) var(--canvas); }

/* v5.3: premium dark surfaces built around the connected-node brand */
:root[data-theme="dark"] body {
  background-color: var(--canvas);
  background-image:
    radial-gradient(circle at 9% -8%, rgba(49, 214, 232, .07), transparent 32rem),
    radial-gradient(circle at 95% 5%, rgba(124, 92, 252, .08), transparent 34rem);
  background-attachment: fixed;
}
:root[data-theme="dark"] ::selection { color: #050914; background: var(--brand-cyan); }
:root[data-theme="dark"] :focus-visible { outline-color: rgba(49, 214, 232, .58); }
:root[data-theme="dark"] .site-header { box-shadow: 0 10px 35px rgba(0, 0, 0, .16); }
:root[data-theme="dark"] .brand img {
  border-color: rgba(111, 132, 163, .58);
  box-shadow: 0 0 0 1px rgba(49, 214, 232, .05), 0 8px 24px rgba(0, 0, 0, .34);
}
:root[data-theme="dark"] .brand em,
:root[data-theme="dark"] .eyebrow,
:root[data-theme="dark"] .text-arrow,
:root[data-theme="dark"] .resource-card > span,
:root[data-theme="dark"] .journal-feature span,
:root[data-theme="dark"] .journal-coming article > span { color: var(--brand-cyan); }
:root[data-theme="dark"] .eyebrow i {
  background: var(--brand-cyan);
  box-shadow: 0 0 0 5px rgba(49, 214, 232, .12), 0 0 22px rgba(49, 214, 232, .2);
}
:root[data-theme="dark"] .hero-glow {
  width: 760px;
  height: 760px;
  background:
    radial-gradient(circle at 62% 38%, rgba(124, 92, 252, .18), transparent 32%),
    radial-gradient(circle at 40% 55%, rgba(49, 214, 232, .13), transparent 55%);
}
:root[data-theme="dark"] .home-hero,
:root[data-theme="dark"] .lookup-hero,
:root[data-theme="dark"] .content-hero,
:root[data-theme="dark"] .checkout-page {
  background-image:
    radial-gradient(circle at 88% 8%, rgba(124, 92, 252, .09), transparent 30rem),
    radial-gradient(circle at 10% 20%, rgba(49, 214, 232, .055), transparent 28rem),
    linear-gradient(180deg, var(--hero-from), var(--hero-mid) 64%, var(--hero-end));
}
:root[data-theme="dark"] .section-tint { border-color: var(--line); }
:root[data-theme="dark"] .lookup-card,
:root[data-theme="dark"] .price-card,
:root[data-theme="dark"] .feature-card,
:root[data-theme="dark"] .resource-card,
:root[data-theme="dark"] .contact-card,
:root[data-theme="dark"] .auth-card,
:root[data-theme="dark"] .profile-card,
:root[data-theme="dark"] .checkout-card,
:root[data-theme="dark"] .status-card {
  background-image: linear-gradient(145deg, rgba(255, 255, 255, .018), transparent 46%);
  border-color: var(--line);
  box-shadow: 0 22px 70px rgba(0, 0, 0, .23);
}
:root[data-theme="dark"] .lookup-card:hover,
:root[data-theme="dark"] .price-card:hover,
:root[data-theme="dark"] .resource-card:hover,
:root[data-theme="dark"] .contact-card:hover { border-color: #3b557c; }
:root[data-theme="dark"] .button-primary,
:root[data-theme="dark"] .lookup-submit,
:root[data-theme="dark"] .checkout-button {
  color: #fff;
  background: linear-gradient(135deg, #0a7582, #5843c5);
  border-color: #35617e;
  box-shadow: 0 11px 30px rgba(51, 77, 178, .28);
}
:root[data-theme="dark"] .button-primary:hover,
:root[data-theme="dark"] .lookup-submit:hover,
:root[data-theme="dark"] .checkout-button:hover {
  background: linear-gradient(135deg, #0b7e8b, #634bd4);
  border-color: #4b668b;
  box-shadow: 0 14px 36px rgba(70, 76, 197, .34);
}
:root[data-theme="dark"] .button-secondary,
:root[data-theme="dark"] .button-quiet,
:root[data-theme="dark"] .secondary-button,
:root[data-theme="dark"] .theme-trigger {
  background-color: #0d1728;
  border-color: var(--line-strong);
}
:root[data-theme="dark"] .button-secondary:hover,
:root[data-theme="dark"] .button-quiet:hover,
:root[data-theme="dark"] .secondary-button:hover,
:root[data-theme="dark"] .theme-trigger:hover {
  color: var(--ink-deep);
  background-color: #121f34;
  border-color: #55719d;
}
:root[data-theme="dark"] .theme-trigger-symbol {
  color: var(--brand-cyan);
  text-shadow: 0 0 16px rgba(49, 214, 232, .42);
}
:root[data-theme="dark"] .theme-menu {
  background: rgba(11, 19, 34, .98);
  border-color: var(--line-strong);
  box-shadow: 0 22px 60px rgba(0, 0, 0, .44);
}
:root[data-theme="dark"] .theme-option[aria-pressed="true"] {
  color: #f7faff;
  background: linear-gradient(90deg, rgba(49, 214, 232, .15), rgba(124, 92, 252, .17));
}
:root[data-theme="dark"] .theme-option-check { color: var(--brand-cyan); }
:root[data-theme="dark"] input,
:root[data-theme="dark"] textarea,
:root[data-theme="dark"] select { caret-color: var(--brand-cyan); }
:root[data-theme="dark"] input:focus,
:root[data-theme="dark"] textarea:focus,
:root[data-theme="dark"] select:focus,
:root[data-theme="dark"] .lookup-control input:focus {
  border-color: #31b7ca;
  box-shadow: 0 0 0 4px rgba(49, 214, 232, .11), 0 10px 30px rgba(0, 0, 0, .15);
}
:root[data-theme="dark"] input:-webkit-autofill,
:root[data-theme="dark"] input:-webkit-autofill:hover,
:root[data-theme="dark"] input:-webkit-autofill:focus {
  -webkit-text-fill-color: var(--ink-deep);
  -webkit-box-shadow: 0 0 0 1000px var(--input-bg) inset;
  transition: background-color 9999s ease-out;
}
:root[data-theme="dark"] .result-summary,
:root[data-theme="dark"] .price-card-recommended,
:root[data-theme="dark"] .network-option input:checked + span {
  background-image: linear-gradient(135deg, rgba(49, 214, 232, .10), rgba(124, 92, 252, .09));
}
:root[data-theme="dark"] .feature-card-highlight,
:root[data-theme="dark"] .support-checklist,
:root[data-theme="dark"] .journal-visual {
  background-image: linear-gradient(145deg, #101c31, #10162a 54%, #251c4b);
  border-color: #31456d;
}
:root[data-theme="dark"] .cta-panel {
  background-image: linear-gradient(125deg, #07101f, #112641 54%, #2a2056);
  border: 1px solid #31476c;
}
:root[data-theme="dark"] .site-footer { background: #030711; }
:root[data-theme="dark"] .payment-qr-code {
  background: #fff;
  border-color: #d7dee9;
  box-shadow: 0 10px 35px rgba(0, 0, 0, .22);
}
:root[data-theme="dark"] .comparison-wrap,
:root[data-theme="dark"] .order-table-wrap { scrollbar-color: #415879 #08101d; }

@media (max-width: 480px) {
  .header-inner { width: calc(100% - 24px); gap: 12px; }
  .mobile-nav-panel { padding-right: max(14px, env(safe-area-inset-right)); padding-left: max(14px, env(safe-area-inset-left)); }
  .theme-menu { max-width: calc(100vw - 28px); }
  .footer-bottom { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 360px) {
  .brand { gap: 8px; }
  .brand img { width: 35px; height: 35px; border-radius: 9px; }
  .brand > span { font-size: .98rem; }
  .mobile-nav summary { width: 40px; height: 40px; }
  .lookup-card { padding-inline: 15px; }
}

@media (max-height: 520px) and (orientation: landscape) {
  .mobile-nav-panel { max-height: calc(100svh - var(--header)); }
  .home-hero { padding-top: 30px; }
}

@media (hover: none) {
  .button:hover,
  .resource-card:hover,
  .contact-card:hover { transform: none; }
}

@media (prefers-contrast: more) {
  :root[data-theme="dark"] { --line: #40577d; --line-strong: #6680a8; --muted: #b4c1d4; }
  .button, .theme-trigger, input, textarea, select { border-width: 2px; }
}

@media (forced-colors: active) {
  .brand img, .button, .theme-trigger, .lookup-card, .price-card, .profile-card, .checkout-card { forced-color-adjust: auto; }
}

@media (max-width: 1080px) {
  .desktop-nav { display: none; }
  .header-actions { margin-left: auto; }
  .home-hero-grid, .lookup-hero-grid { grid-template-columns: 1fr; }
  .home-hero-grid { max-width: 850px; }
  .hero-copy { text-align: center; }
  .hero-copy .eyebrow { justify-content: center; }
  .hero-copy .hero-actions, .hero-copy .hero-checks { justify-content: center; }
  .hero-copy h1, .hero-copy .hero-lead { margin-inline: auto; }
  .product-showcase { grid-template-columns: 1fr; }
  .showcase-ui { max-width: 760px; }
  .evidence-grid { grid-template-columns: 1fr; }
  .content-hero-grid { grid-template-columns: 1fr; }
  .hero-facts { max-width: 650px; }
  .footer-main { grid-template-columns: 1fr; }
  .footer-brand > p { max-width: 600px; }
}

@media (max-width: 860px) {
  :root { --header: 68px; }
  .shell { width: min(var(--shell), calc(100% - 28px)); }
  .header-actions { display: none; }
  .public-theme-slot { display: none; }
  .mobile-nav { display: block; }
  .mobile-nav-panel { max-height: calc(100dvh - var(--header)); overflow-y: auto; overscroll-behavior: contain; }
  .feature-grid-3, .usecase-grid, .pricing-grid-home, .pricing-grid-main, .resource-grid { grid-template-columns: 1fr; }
  .feature-card { min-height: auto; }
  .feature-card > .icon { margin-bottom: 30px; }
  .price-card > p { min-height: 0; }
  .split-heading, .interpretation-grid, .faq-layout, .checkout-steps, .contact-grid, .safety-panel { grid-template-columns: 1fr; gap: 35px; }
  .faq-layout > div:first-child { position: static; }
  .principle-cards { grid-template-columns: repeat(3, 1fr); }
  .article-grid, .faq-page-grid { grid-template-columns: 1fr; }
  .toc, .faq-page-grid aside { position: static; display: flex; flex-wrap: wrap; gap: 4px; }
  .toc > span, .faq-page-grid aside span { width: 100%; }
  .inline-steps { grid-template-columns: 1fr 1fr; }
  .related-grid { grid-template-columns: 1fr; }
  .related-card { min-height: 110px; }
  .footer-links { grid-template-columns: 1fr 1fr; }
  .journal-feature { grid-template-columns: 1fr; }
  .journal-visual { min-height: 270px; }
}

@media (max-width: 640px) {
  body { font-size: 15px; }
  h1 { font-size: clamp(2.55rem, 13vw, 3.8rem); }
  .section { padding: 68px 0; }
  .home-hero { padding-top: 42px; }
  .hero-copy h1 { font-size: clamp(2.75rem, 13vw, 4rem); }
  .hero-actions .button { width: 100%; }
  .hero-checks { display: grid; justify-content: start !important; text-align: left; }
  .lookup-card { padding: 19px; border-radius: 17px; }
  .lookup-card-head { margin-bottom: 20px; }
  .lookup-control { display: grid; }
  .lookup-control input { padding-right: 14px; }
  .lookup-control .lookup-submit { position: static; width: 100%; min-height: 49px; margin-top: 7px; }
  .verification-row { grid-template-columns: 1fr; }
  .verification-row > div:first-child { display: none; }
  .turnstile-slot { justify-content: center; min-width: 0; }
  .result-summary code { position: static; display: inline-block; margin-top: 12px; }
  .result-more { grid-template-columns: auto 1fr; }
  .result-more a { grid-column: 2; }
  .trust-grid { grid-template-columns: 1fr 1fr; }
  .trust-grid > div { padding: 17px 10px; border-bottom: 1px solid var(--line); }
  .trust-grid > div:nth-child(2) { border-right: 0; }
  .trust-grid > div:nth-last-child(-n+2) { border-bottom: 0; }
  .trust-grid > div:first-child { padding-left: 10px; }
  .showcase-summary { grid-template-columns: 1fr; }
  .showcase-table { grid-template-columns: 32px 1fr 62px; }
  .showcase-table > * { padding: 8px; }
  .evidence-grid dl { grid-template-columns: 1fr; }
  .evidence-grid dl > div { min-height: 0; }
  .principle-cards { grid-template-columns: 1fr; }
  .principle-cards article { min-height: 180px; }
  .principle-cards .icon { margin-bottom: 25px; }
  .preview-next { grid-template-columns: 1fr; gap: 30px; padding: 26px; }
  .content-hero { padding-top: 25px; }
  .content-hero h1 { font-size: clamp(2.55rem, 12vw, 4rem); }
  .hero-facts { grid-template-columns: 1fr 1fr; }
  .hero-facts > div { min-height: 82px; padding: 13px; }
  .inline-steps { grid-template-columns: 1fr; }
  .faq-list details p { margin-right: 0; }
  .cta-panel { align-items: flex-start; flex-direction: column; gap: 25px; border-radius: 18px; }
  .cta-panel .button-row, .cta-panel .button { width: 100%; }
  .contact-actions, .journal-coming { grid-template-columns: 1fr; }
  .journal-feature { min-height: 0; }
  .footer-links { gap: 35px 20px; }
  .footer-bottom { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 380px) {
  .shell { width: min(var(--shell), calc(100% - 24px)); }
  .header-inner { gap: 10px; }
  .brand { gap: 8px; }
  .brand img { width: 34px; height: 34px; border-radius: 9px; }
  .brand > span { font-size: .96rem; }
  .mobile-nav summary, .theme-trigger { width: 40px; height: 40px; }
  .lookup-card { padding: 16px; }
  .lookup-card-head { gap: 10px; }
  .lookup-card-head small { font-size: .7rem; }
  .hero-facts { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}