:root {
  --bg: #ffffff;
  --fg: #0f1f30;
  --surface: #f5f8fb;
  --card: #ffffff;
  --primary: #0b7bb5;
  --primary-glow: #06b6d4;
  --primary-fg: #ffffff;
  --primary-soft: rgba(11, 123, 181, 0.10);
  --muted: #546579;
  --border: #dbe2ea;
  --input: #eef2f6;
  --shadow-card: 0 10px 40px -15px rgba(38, 67, 115, 0.18);
  --shadow-card-hover: 0 20px 50px -15px rgba(11, 123, 181, 0.25);
  --radius: 12px;
  --serif: "Fraunces", Georgia, serif;
  --sans: "DM Sans", system-ui, -apple-system, sans-serif;
}

:root[data-theme="dark"] {
  --bg: #091727;
  --fg: #f5f8fb;
  --surface: #0c2039;
  --card: #0c2039;
  --primary: #00b8d6;
  --primary-glow: #4fd3e8;
  --primary-fg: #091727;
  --primary-soft: rgba(0, 184, 214, 0.14);
  --muted: #92a6bb;
  --border: #22374f;
  --input: #172b45;
  --shadow-card: 0 10px 40px -10px rgba(2, 8, 18, 0.6);
  --shadow-card-hover: 0 20px 60px -15px rgba(0, 184, 214, 0.25);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #091727;
    --fg: #f5f8fb;
    --surface: #0c2039;
    --card: #0c2039;
    --primary: #00b8d6;
    --primary-glow: #4fd3e8;
    --primary-fg: #091727;
    --primary-soft: rgba(0, 184, 214, 0.14);
    --muted: #92a6bb;
    --border: #22374f;
    --input: #172b45;
    --shadow-card: 0 10px 40px -10px rgba(2, 8, 18, 0.6);
    --shadow-card-hover: 0 20px 60px -15px rgba(0, 184, 214, 0.25);
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); }
h1, h2, h3 { font-family: var(--serif); font-weight: 500; line-height: 1.15; margin: 0; letter-spacing: -0.01em; }
h1 em, h2 em { color: var(--primary); font-style: italic; }
p { margin: 0; }

.container { max-width: 1120px; margin: 0 auto; padding: 0 16px; }
@media (min-width: 768px) { .container { padding: 0 32px; } }

/* Header */
.header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.header .container { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.brand { font-family: var(--serif); font-size: 22px; font-weight: 600; color: var(--fg); text-decoration: none; }
.brand span { color: var(--primary); }
.nav { display: none; gap: 28px; }
.nav a { color: var(--muted); text-decoration: none; font-size: 14px; }
.nav a:hover { color: var(--fg); }
@media (min-width: 960px) { .nav { display: flex; } }
.header-actions { display: flex; align-items: center; gap: 10px; }
.theme-toggle {
  width: 36px; height: 36px; border-radius: 50%;
  border: 1px solid var(--border); background: var(--card); color: var(--fg);
  display: grid; place-items: center; cursor: pointer;
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 22px; border-radius: 999px;
  font: 600 15px var(--sans); text-decoration: none; cursor: pointer;
  border: 1px solid transparent; transition: transform .2s, box-shadow .2s;
}
.btn-primary { background: var(--primary); color: var(--primary-fg); }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 0 40px rgba(11, 123, 181, 0.28); }
.btn-ghost { background: var(--card); color: var(--fg); border-color: var(--border); }
.btn-sm { padding: 8px 16px; font-size: 14px; }
.btn[disabled] { opacity: .6; cursor: wait; }

/* Sections */
section { padding: 88px 0; }
.section-alt { background: var(--surface); }
.eyebrow {
  display: block; text-align: center; margin-bottom: 14px;
  font-size: 12px; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: var(--primary);
}
.section-title { text-align: center; font-size: clamp(30px, 4.5vw, 44px); max-width: 760px; margin: 0 auto; }
.section-lead { text-align: center; color: var(--muted); font-size: 17px; max-width: 640px; margin: 20px auto 0; }

/* Hero */
.hero {
  padding: 96px 0 64px; text-align: center;
  background: radial-gradient(ellipse at top, var(--primary-soft), transparent 70%);
}
.pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px; border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--primary) 35%, transparent);
  background: var(--primary-soft); color: var(--primary);
  font-size: 12px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase;
}
.pill::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.hero h1 { font-size: clamp(38px, 7vw, 68px); margin: 28px auto 0; max-width: 900px; }
.hero h1 em { display: block; }
.hero .lead { color: var(--muted); font-size: 18px; max-width: 620px; margin: 24px auto 0; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-top: 36px; }
.features {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px 16px;
  max-width: 880px; margin: 72px auto 0;
}
@media (min-width: 768px) { .features { grid-template-columns: repeat(4, 1fr); } }
.feature { display: flex; flex-direction: column; align-items: center; gap: 12px; color: var(--muted); font-size: 14px; }
.hero .note { color: var(--muted); max-width: 640px; margin: 40px auto 0; }

/* Icons */
.icon {
  width: 44px; height: 44px; border-radius: 10px; flex: none;
  display: grid; place-items: center;
  background: var(--primary-soft); color: var(--primary);
}
.icon svg { width: 20px; height: 20px; }

/* Cards */
.grid-4 { display: grid; gap: 20px; margin-top: 56px; }
@media (min-width: 640px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .grid-4 { grid-template-columns: repeat(4, 1fr); } }
.grid-3 { display: grid; gap: 20px; margin-top: 56px; }
@media (min-width: 900px) { .grid-3 { grid-template-columns: repeat(3, 1fr); } }
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: 16px;
  padding: 24px; box-shadow: var(--shadow-card);
  display: flex; flex-direction: column; gap: 14px;
  transition: box-shadow .3s, transform .3s;
}
.card:hover { box-shadow: var(--shadow-card-hover); transform: translateY(-2px); }
.card h3 { font-size: 20px; }
.card p { color: var(--muted); font-size: 14px; }
.card .link { margin-top: auto; font-weight: 600; font-size: 14px; text-decoration: none; }
.after-text { text-align: center; color: var(--muted); font-size: 17px; max-width: 640px; margin: 48px auto 0; }

/* Steps */
.step { position: relative; overflow: hidden; }
.step-num {
  position: absolute; top: -10px; right: 12px;
  font: 600 96px var(--serif); color: var(--primary); opacity: .07; line-height: 1;
}
.step .label { font-size: 12px; font-weight: 600; letter-spacing: .14em; color: var(--primary); }
.step ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 8px; }
.step li { position: relative; padding-left: 18px; color: var(--muted); font-size: 14px; }
.step li::before { content: ""; position: absolute; left: 0; top: 10px; width: 10px; height: 2px; background: var(--primary); }
.result {
  margin-top: auto; padding: 14px; border-radius: 10px;
  background: var(--primary-soft); border: 1px solid color-mix(in srgb, var(--primary) 25%, transparent);
  font-size: 14px;
}
.result strong { display: block; font-size: 11px; letter-spacing: .14em; color: var(--primary); margin-bottom: 4px; }

/* Role */
.role {
  max-width: 760px; margin: 0 auto; text-align: center;
  background: var(--card); border: 1px solid var(--border); border-radius: 20px;
  padding: 48px 24px; box-shadow: var(--shadow-card);
  background-image: radial-gradient(ellipse at top, var(--primary-soft), transparent 60%);
}
.role p { color: var(--muted); font-size: 17px; max-width: 560px; margin: 20px auto 0; }

/* Team */
.person-head { display: flex; align-items: center; gap: 14px; }
.person-head img { width: 52px; height: 52px; border-radius: 50%; object-fit: cover; }
.person-head h3 { font-size: 18px; }
.person-head .role-title { color: var(--primary); font-size: 14px; }
.person-head .li { margin-left: auto; color: var(--muted); }

/* Contact */
.contact-box {
  max-width: 860px; margin: 0 auto;
  background: var(--card); border: 1px solid var(--border); border-radius: 20px;
  padding: 48px 20px; box-shadow: var(--shadow-card);
  background-image: radial-gradient(ellipse at top, var(--primary-soft), transparent 60%);
}
@media (min-width: 768px) { .contact-box { padding: 56px 64px; } }
.contact-box h2 { text-align: center; font-size: clamp(30px, 4.5vw, 44px); }
.contact-box > p { text-align: center; color: var(--muted); max-width: 560px; margin: 16px auto 0; }
.contact-actions { display: flex; flex-direction: column; align-items: center; gap: 16px; margin-top: 36px; }
.contact-email { display: flex; align-items: center; gap: 12px; font-size: 15px; }
.contact-email a { color: var(--fg); text-decoration: none; }
.copy-btn {
  font: 13px var(--sans); color: var(--muted); cursor: pointer;
  background: none; border: 1px solid var(--border); border-radius: 999px; padding: 4px 12px;
}
.copy-btn:hover { color: var(--fg); }
.contact-meta { text-align: center; color: var(--muted); font-size: 13px; margin-top: 24px; }

/* Footer */
.footer { border-top: 1px solid var(--border); padding: 28px 0; font-size: 14px; color: var(--muted); }
.footer .container { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; }
.footer a { color: var(--muted); text-decoration: none; margin-left: 16px; }
.footer a:first-child { margin-left: 0; }
.footer a:hover { color: var(--fg); }

/* Legal pages */
.legal { max-width: 760px; padding: 64px 16px 88px; }
.legal h1 { font-size: 40px; }
.legal h2 { font-size: 22px; margin-top: 36px; }
.legal p, .legal li { color: var(--muted); margin-top: 12px; }
.legal .updated { font-size: 14px; }