/* TDM Network - Lightweight, responsive, accessible */
/* Accent: #2563EB */

:root {
  --accent: #2563EB;
  --text: #0F172A;
  --muted: #475569;
  --bg: #FFFFFF;
  --soft: #F1F5F9;
  --border: rgba(15, 23, 42, 0.10);
  --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
  --radius: 18px;
  --max: 1120px;
  --pad: 20px;
  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.5;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad);
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 10px;
  background: var(--text);
  color: white;
  padding: 10px 12px;
  border-radius: 10px;
  z-index: 9999;
}
.skip-link:focus { left: 10px; }

header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.logo {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: radial-gradient(circle at 25% 25%, rgba(37,99,235,0.25), rgba(37,99,235,0) 60%),
              linear-gradient(135deg, rgba(37,99,235,0.18), rgba(37,99,235,0.02));
  border: 1px solid rgba(37,99,235,0.22);
  box-shadow: 0 8px 20px rgba(37,99,235,0.12);
  position: relative;
}
.logo::after {
  content: "";
  position: absolute;
  inset: 10px;
  border-radius: 10px;
  border: 2px solid rgba(37,99,235,0.55);
}
.brand-name {
  font-size: 16px;
  letter-spacing: 0.2px;
}
.brand-tag {
  font-size: 12px;
  color: var(--muted);
  margin-top: -2px;
}
.nav-links {
  display: flex;
  gap: 22px;
  align-items: center;
}
.nav-links a {
  font-size: 14px;
  color: var(--muted);
  padding: 10px 10px;
  border-radius: 12px;
}
.nav-links a:hover {
  background: rgba(15,23,42,0.04);
  color: var(--text);
}
.nav-cta {
  display: flex;
  gap: 10px;
  align-items: center;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: white;
  color: var(--text);
  font-size: 14px;
  cursor: pointer;
  transition: transform 0.06s ease, box-shadow 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}
.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 28px rgba(15,23,42,0.10);
  border-color: rgba(15,23,42,0.14);
}
.btn.primary {
  background: var(--accent);
  color: white;
  border-color: rgba(37,99,235,0.5);
}
.btn.primary:hover {
  box-shadow: 0 16px 34px rgba(37,99,235,0.28);
  border-color: rgba(37,99,235,0.65);
}
.btn.ghost {
  background: rgba(37,99,235,0.08);
  border-color: rgba(37,99,235,0.20);
  color: var(--text);
}
.btn.ghost:hover {
  background: rgba(37,99,235,0.12);
  border-color: rgba(37,99,235,0.28);
}

.mobile-toggle {
  display: none;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: white;
}

.hero {
  padding: 64px 0 36px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 28px;
  align-items: start;
}
.kicker {
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 0.6px;
  text-transform: uppercase;
}
h1 {
  font-size: 44px;
  line-height: 1.08;
  letter-spacing: -0.6px;
  margin: 10px 0 14px;
}
.lead {
  font-size: 17px;
  color: var(--muted);
  max-width: 58ch;
}
.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 20px;
}
.card {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.panel {
  padding: 22px;
}
.pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}
.pill {
  font-size: 13px;
  color: var(--text);
  background: rgba(15,23,42,0.04);
  border: 1px solid rgba(15,23,42,0.06);
  padding: 10px 12px;
  border-radius: 999px;
}

.section {
  padding: 46px 0;
}
.section.soft {
  background: linear-gradient(180deg, rgba(241,245,249,0.8), rgba(241,245,249,0));
  border-top: 1px solid rgba(15,23,42,0.06);
  border-bottom: 1px solid rgba(15,23,42,0.06);
}
.section-title {
  font-size: 28px;
  letter-spacing: -0.2px;
  margin: 0 0 10px;
}
.section-sub {
  color: var(--muted);
  margin: 0 0 18px;
  max-width: 75ch;
}
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}
.feature {
  padding: 18px;
}
.feature h3 {
  margin: 0 0 8px;
  font-size: 16px;
}
.feature p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}
.icon {
  width: 40px;
  height: 40px;
  border-radius: 14px;
  background: rgba(37,99,235,0.10);
  border: 1px solid rgba(37,99,235,0.18);
  margin-bottom: 12px;
  display: grid;
  place-items: center;
}
.icon svg {
  width: 20px;
  height: 20px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.step {
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: white;
}
.step .num {
  width: 34px;
  height: 34px;
  border-radius: 12px;
  background: rgba(37,99,235,0.10);
  border: 1px solid rgba(37,99,235,0.18);
  display: grid;
  place-items: center;
  margin-bottom: 10px;
  font-size: 14px;
}
.step h3 { margin: 0 0 6px; font-size: 15px; }
.step p { margin: 0; color: var(--muted); font-size: 14px; }

.cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 22px;
}
.cta h2 {
  margin: 0 0 6px;
  font-size: 22px;
  letter-spacing: -0.2px;
}
.cta p {
  margin: 0;
  color: var(--muted);
}
.footer {
  border-top: 1px solid var(--border);
  padding: 28px 0;
  color: var(--muted);
  font-size: 13px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 18px;
  align-items: start;
}
.footer a {
  color: var(--muted);
}
.footer a:hover {
  color: var(--text);
}
.footer-links {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.page-hero {
  padding: 42px 0 16px;
}
.page-hero h1 {
  font-size: 36px;
  margin: 10px 0 10px;
}
.breadcrumb {
  color: var(--muted);
  font-size: 13px;
}
.list {
  margin: 10px 0 0;
  padding-left: 18px;
  color: var(--muted);
}
.list li { margin: 8px 0; }

.form {
  display: grid;
  gap: 12px;
}
.field {
  display: grid;
  gap: 8px;
}
label {
  font-size: 13px;
  color: var(--muted);
}
input, textarea, select {
  font: inherit;
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: white;
  outline: none;
}
input:focus, textarea:focus, select:focus {
  border-color: rgba(37,99,235,0.55);
  box-shadow: 0 0 0 4px rgba(37,99,235,0.12);
}
textarea { min-height: 120px; resize: vertical; }

.notice {
  font-size: 13px;
  color: var(--muted);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 10px;
  border-radius: 999px;
  background: rgba(37,99,235,0.10);
  border: 1px solid rgba(37,99,235,0.18);
  font-size: 13px;
}

hr.sep {
  border: none;
  border-top: 1px solid var(--border);
  margin: 24px 0;
}

@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  h1 { font-size: 38px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-links { justify-content: flex-start; }
  .nav-links {
    display: none;
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: rgba(255,255,255,0.98);
    border-bottom: 1px solid var(--border);
    padding: 10px 14px 16px;
  }
  .nav-links.open {
    display: grid;
    gap: 6px;
  }
  .nav-links a {
    padding: 12px 12px;
  }
  .mobile-toggle { display: inline-flex; }
}