:root {
  --bg: #f2f4f6;
  --surface: #ffffff;
  --surface-2: #e8ecef;
  --border: #d8dfe4;
  --ink: #0e1b26;
  --ink-muted: #55666f;
  --ink-faint: #8a999e;
  --accent: #0e7c9e;
  --accent-strong: #0a5a76;
  --accent-soft: #e2f1f5;
  --signal: #22c3a6;
  --panel-dark: #0b1720;
  --panel-dark-2: #12232f;
  --panel-dark-border: #1f3540;
  --panel-dark-text: #e7f0f2;
  --panel-dark-muted: #93aab1;
  --online: #22c3a6;
  --online-bg: rgba(34, 195, 166, 0.14);
  --offline: #7c8e93;
  --offline-bg: rgba(124, 142, 147, 0.14);
  --sans: 'Source Sans 3', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --display: 'Sora', var(--sans);
  --mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1318;
    --surface: #101c22;
    --surface-2: #16262d;
    --border: #223640;
    --ink: #eaf1f2;
    --ink-muted: #9db0b6;
    --ink-faint: #6c8189;
    --accent: #38b7dc;
    --accent-strong: #6fd2ee;
    --accent-soft: #123641;
    --panel-dark: #060d12;
    --panel-dark-2: #0c1a21;
    --panel-dark-border: #1b2e37;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
}

a { color: inherit; }

.wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 40px);
}

/* --- Top nav --- */
.topnav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.topnav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--display);
  font-weight: 600;
  font-size: 19px;
  letter-spacing: -0.01em;
  text-decoration: none;
  color: var(--ink);
}

.brand .mark {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--signal));
  display: grid;
  place-items: center;
  color: #fff;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 13px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 15px;
  color: var(--ink-muted);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: 8px;
  padding: 10px 18px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  font-family: var(--sans);
}

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

.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--ink);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* --- Hero --- */
.hero {
  padding: clamp(56px, 9vw, 108px) 0 clamp(40px, 6vw, 72px);
}

.eyebrow {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 8px;
}

.eyebrow .pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--signal) 22%, transparent);
}

.hero h1 {
  font-family: var(--display);
  font-size: clamp(36px, 5.4vw, 58px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  margin: 18px 0 20px;
  text-wrap: balance;
  max-width: 15ch;
}

.hero .lede {
  font-size: 19px;
  color: var(--ink-muted);
  max-width: 52ch;
  margin: 0 0 32px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* --- Sections --- */
section { padding: clamp(48px, 7vw, 88px) 0; }

.section-head {
  max-width: 60ch;
  margin-bottom: 40px;
}

.section-head .eyebrow { margin-bottom: 12px; }

.section-head h2 {
  font-family: var(--display);
  font-size: clamp(26px, 3.4vw, 36px);
  letter-spacing: -0.01em;
  margin: 0 0 12px;
  text-wrap: balance;
}

.section-head p { color: var(--ink-muted); margin: 0; font-size: 16.5px; }

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.service-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 26px;
}

.service-card .num {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent);
  margin-bottom: 14px;
}

.service-card h3 {
  font-family: var(--display);
  font-size: 19px;
  margin: 0 0 10px;
  letter-spacing: -0.005em;
}

.service-card p {
  color: var(--ink-muted);
  font-size: 15.5px;
  margin: 0;
}

/* --- Contact --- */
.contact-panel {
  background: var(--panel-dark);
  color: var(--panel-dark-text);
  border-radius: 20px;
  padding: clamp(32px, 5vw, 56px);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.contact-panel .section-head p { color: var(--panel-dark-muted); }
.contact-panel .section-head .eyebrow { color: var(--signal); }
.contact-panel h2 { color: var(--panel-dark-text); }

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-top: 8px;
}

.contact-row {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 16px;
}

.contact-row .icon {
  width: 38px;
  height: 38px;
  border-radius: 9px;
  background: var(--panel-dark-2);
  border: 1px solid var(--panel-dark-border);
  display: grid;
  place-items: center;
  flex-shrink: 0;
  color: var(--signal);
}

.contact-row a { text-decoration: none; color: var(--panel-dark-text); font-weight: 600; }
.contact-row a:hover { color: var(--signal); }

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.field label {
  display: block;
  font-size: 13px;
  color: var(--panel-dark-muted);
  margin-bottom: 6px;
}

.field input,
.field textarea {
  width: 100%;
  background: var(--panel-dark-2);
  border: 1px solid var(--panel-dark-border);
  border-radius: 8px;
  padding: 12px 14px;
  color: var(--panel-dark-text);
  font-family: var(--sans);
  font-size: 15px;
}

.field textarea { min-height: 100px; resize: vertical; }

.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--signal);
}

/* --- Footer --- */
footer {
  border-top: 1px solid var(--border);
  padding: 28px 0;
  color: var(--ink-faint);
  font-size: 14px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

/* --- Login page --- */
.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: var(--panel-dark);
  padding: 20px;
}

.login-card {
  width: 100%;
  max-width: 380px;
  background: var(--panel-dark-2);
  border: 1px solid var(--panel-dark-border);
  border-radius: 16px;
  padding: 36px 32px;
  color: var(--panel-dark-text);
}

.login-card .brand { color: var(--panel-dark-text); margin-bottom: 6px; }
.login-card .eyebrow { color: var(--signal); margin-bottom: 24px; }

.login-card .field input {
  background: var(--panel-dark);
}

.login-card .btn-primary {
  width: 100%;
  justify-content: center;
  margin-top: 6px;
  padding: 12px 18px;
}

.login-error {
  background: rgba(224, 92, 92, 0.14);
  border: 1px solid rgba(224, 92, 92, 0.4);
  color: #f0a3a3;
  font-size: 14px;
  padding: 10px 14px;
  border-radius: 8px;
  margin-bottom: 18px;
}

.login-back {
  display: block;
  text-align: center;
  margin-top: 20px;
  font-size: 14px;
  color: var(--panel-dark-muted);
  text-decoration: none;
}
.login-back:hover { color: var(--signal); }

@media (max-width: 760px) {
  .contact-panel { grid-template-columns: 1fr; }
  .nav-links span { display: none; }
}

@media (max-width: 560px) {
  .topnav .wrap { height: 60px; }
  .brand { font-size: 17px; gap: 8px; }
  .brand .mark { width: 26px; height: 26px; font-size: 11px; }
  .nav-links { gap: 10px; }
  .nav-links a:not(.btn) { display: none; }
  .btn { padding: 8px 14px; font-size: 14px; }
}