/* ===== Global styles & design tokens ===== */
:root {
  --bg: #f5f7fb;
  --bg-alt: #eef2ff;
  --card: #ffffff;
  --card-soft: #f8fafc;
  --border-subtle: rgba(15, 23, 42, 0.06);

  --text: #0f172a;
  --muted: #64748b;
  --accent: #0fb9b1;
  --accent-soft: rgba(15, 185, 177, 0.12);
  --accent-strong: #0ea5e9;

  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-pill: 999px;

  --shadow-soft: 0 18px 45px rgba(15, 23, 42, 0.12);
  --shadow-subtle: 0 8px 24px rgba(15, 23, 42, 0.08);
  --transition-fast: 180ms ease-out;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Segoe UI", sans-serif;
  background: radial-gradient(circle at top left, #e0f2fe, #f5f7fb 40%, #eef2ff);
  color: var(--text);
}

/* ===== Layout helpers ===== */

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5rem 0;
}

.section.alt {
  background: var(--bg-alt);
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 2.5rem;
}

.section-header.left {
  text-align: left;
  margin-left: 0;
}

.section-header h2 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.section-header p {
  margin: 0;
  color: var(--muted);
}

/* ===== Header & nav ===== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
  background: rgba(245, 247, 251, 0.9);
  border-bottom: 1px solid rgba(148, 163, 184, 0.16);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: inherit;
}

.logo {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-weight: 700;
  letter-spacing: 0.03em;
}

.brand-tagline {
  font-size: 0.8rem;
  color: var(--muted);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.95rem;
}

.nav-link,
.nav-login {
  text-decoration: none;
  color: var(--muted);
  padding: 0.25rem 0.7rem;
  border-radius: var(--radius-pill);
  transition: color var(--transition-fast), background var(--transition-fast),
    transform var(--transition-fast);
}

.nav-link:hover,
.nav-login:hover {
  color: var(--text);
  background: rgba(148, 163, 184, 0.16);
  transform: translateY(-1px);
}

.nav-link.active {
  color: var(--text);
  background: rgba(148, 163, 184, 0.22);
}

.nav-login {
  border: 1px solid rgba(148, 163, 184, 0.7);
}

/* ===== Buttons ===== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-pill);
  padding: 0.75rem 1.4rem;
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast),
    background var(--transition-fast), color var(--transition-fast);
}

.btn.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #ffffff;
  box-shadow: var(--shadow-soft);
}

.btn.primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 24px 50px rgba(15, 23, 42, 0.22);
}

.btn.ghost {
  background: rgba(255, 255, 255, 0.9);
  color: var(--text);
  border: 1px solid rgba(148, 163, 184, 0.4);
}

.btn.ghost:hover {
  background: #ffffff;
  box-shadow: var(--shadow-subtle);
}

.btn.full-width {
  width: 100%;
}

/* ===== Hero ===== */

.hero {
  padding: 5.5rem 0 4.5rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 2.5rem;
  align-items: center;
}

.hero-copy h1 {
  font-size: clamp(2.25rem, 3.1vw, 3rem);
  line-height: 1.08;
  margin-bottom: 1rem;
}

.hero-subtitle {
  margin: 0 0 1.5rem;
  color: var(--muted);
  font-size: 1rem;
}

.accent {
  background: linear-gradient(120deg, var(--accent), var(--accent-strong));
  -webkit-background-clip: text;
  color: transparent;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-bottom: 1.4rem;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.hero-meta span {
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.3);
}

/* Hero side card */

.hero-card {
  background: radial-gradient(circle at top left, #e0fbff, #ffffff);
  border-radius: var(--radius-lg);
  padding: 1.75rem 1.5rem;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(148, 163, 184, 0.22);
}

.hero-card h2 {
  font-size: 1.1rem;
  margin-top: 0;
  margin-bottom: 1rem;
}

.steps {
  list-style: none;
  margin: 0 0 1.5rem;
  padding: 0;
  counter-reset: step-counter;
}

.steps li {
  position: relative;
  padding-left: 2.4rem;
  margin-bottom: 0.8rem;
}

.steps li::before {
  counter-increment: step-counter;
  content: counter(step-counter);
  position: absolute;
  left: 0;
  top: 0.15rem;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 600;
}

.steps strong {
  display: block;
  margin-bottom: 0.1rem;
}

.step-text {
  font-size: 0.9rem;
  color: var(--muted);
}

.hero-stat-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.pill {
  background: rgba(255, 255, 255, 0.9);
  border-radius: var(--radius-pill);
  padding: 0.5rem 0.9rem;
  display: inline-flex;
  flex-direction: column;
  min-width: 120px;
}

.pill-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.pill-value {
  font-size: 0.95rem;
  font-weight: 600;
}

/* ===== Cards & grids ===== */

.card {
  background: var(--card);
  border-radius: var(--radius-lg);
  padding: 1.6rem 1.5rem;
  box-shadow: var(--shadow-subtle);
  border: 1px solid var(--border-subtle);
}

.card.small {
  border-radius: var(--radius-md);
}

.split-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.75rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
}

.feature-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.feature-list li {
  padding-left: 1.3rem;
  position: relative;
  margin-bottom: 0.65rem;
  font-size: 0.95rem;
  color: var(--muted);
}

.feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--accent-strong);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

/* ===== Security section ===== */

.security-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 2rem;
}

/* ===== Values card ===== */

.values-card strong {
  color: var(--text);
}

/* ===== Contact ===== */

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 2rem;
  align-items: flex-start;
}

.contact-form .field {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  margin-bottom: 1rem;
}

.contact-form label {
  font-size: 0.85rem;
  font-weight: 500;
}

.contact-form input,
.contact-form textarea {
  border-radius: 10px;
  border: 1px solid rgba(148, 163, 184, 0.6);
  padding: 0.6rem 0.75rem;
  font-size: 0.95rem;
  font-family: inherit;
  resize: vertical;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent-strong);
  box-shadow: 0 0 0 1px var(--accent-soft);
}

.contact-side h3 {
  margin-top: 0;
}

.contact-side p {
  color: var(--muted);
}

.contact-note {
  font-size: 0.9rem;
}

/* ===== Login section ===== */

.login-section {
  padding-top: 0;
  padding-bottom: 4rem;
}

.login-card {
  text-align: center;
}

/* ===== Footer ===== */

.site-footer {
  background: #020617;
  color: #e2e8f0;
  padding: 2.5rem 0 2rem;
  margin-top: 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr) minmax(0, 1.1fr);
  gap: 2rem;
  align-items: flex-start;
}

.footer-text {
  margin: 0.4rem 0;
  color: #94a3b8;
  font-size: 0.9rem;
}

.footer-text.small {
  font-size: 0.8rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.footer-links a {
  font-size: 0.9rem;
  color: #cbd5f5;
  text-decoration: none;
}

.footer-links a:hover {
  color: #e5e7eb;
}

.footer-meta {
  font-size: 0.85rem;
}

/* ===== Responsive ===== */

@media (max-width: 960px) {
  .hero-grid,
  .split-grid,
  .feature-grid,
  .security-grid,
  .contact-grid,
  .footer-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero {
    padding-top: 4.5rem;
  }

  .nav-container {
    padding-inline: 1rem;
  }

  .nav-links {
    gap: 0.5rem;
    font-size: 0.85rem;
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .hero-card {
    order: -1;
  }
}

@media (max-width: 640px) {
  .section {
    padding: 3.5rem 0;
  }

  .hero-copy h1 {
    font-size: 2rem;
  }

  .card {
    padding: 1.25rem 1.1rem;
  }
}