:root {
  --color-ink: #121f38;
  --color-text: #2b3242;
  --color-muted: #64708a;
  --color-bg: #ffffff;
  --color-bg-alt: #eef4ff;
  --color-border: #e1e8f5;
  --color-accent: #0066ff;
  --color-accent-dark: #0050c8;
  --color-dark: #0b1f3a;
  --max-width: 1120px;
  --radius: 12px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", "Segoe UI", sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.8;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3 {
  color: var(--color-ink);
  line-height: 1.5;
}

a {
  color: var(--color-accent-dark);
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
}

.logo {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-ink);
  text-decoration: none;
  letter-spacing: 0.02em;
}

/* Buttons */

.btn {
  display: inline-block;
  text-decoration: none;
  font-weight: 700;
  padding: 14px 28px;
  border-radius: 6px;
  border: 2px solid transparent;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.btn-sm {
  padding: 10px 20px;
  font-size: 0.9rem;
}

.btn-primary {
  background: var(--color-accent);
  color: #ffffff;
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--color-accent-dark);
  color: #ffffff;
}

.btn-outline {
  background: transparent;
  color: var(--color-accent-dark);
  border-color: var(--color-accent);
}

.btn-outline:hover,
.btn-outline:focus-visible {
  background: var(--color-bg-alt);
  color: var(--color-accent-dark);
}

/* Sections */

.section {
  padding: 72px 0;
}

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

h2 {
  font-size: 1.6rem;
  text-align: center;
  margin: 0 0 40px;
}

/* Hero */

.hero {
  background: var(--color-bg);
  padding: 56px 0 72px;
}

.hero-inner {
  display: flex;
  flex-direction: column;
  gap: 40px;
  align-items: center;
}

.hero-text {
  text-align: center;
}

.eyebrow {
  color: var(--color-accent-dark);
  font-weight: 700;
  letter-spacing: 0.1em;
  margin: 0 0 12px;
}

.hero-text h1 {
  font-size: 1.9rem;
  margin: 0 0 20px;
}

.hero-desc {
  color: var(--color-muted);
  margin: 0 0 28px;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
}

.hero-media {
  display: flex;
  justify-content: center;
}

.hero-media img {
  width: 100%;
  max-width: 260px;
  height: auto;
}

@media (min-width: 880px) {
  .hero {
    padding: 88px 0;
  }

  .hero-inner {
    flex-direction: row;
    text-align: left;
    gap: 64px;
  }

  .hero-text {
    text-align: left;
    flex: 1 1 55%;
  }

  .hero-cta {
    justify-content: flex-start;
  }

  .hero-text h1 {
    font-size: 2.3rem;
  }

  .hero-media {
    flex: 1 1 45%;
  }

  .hero-media img {
    max-width: 320px;
  }
}

/* Cards */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: 0 1px 2px rgba(18, 31, 56, 0.04);
}

.section-alt .card {
  background: #ffffff;
}

.card h3 {
  margin-top: 0;
  font-size: 1.1rem;
}

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

.card-service p {
  margin-top: 8px;
}

.icon-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-bg-alt);
  color: var(--color-accent);
  margin-bottom: 16px;
}

.card-service .icon-badge {
  background: #e4edff;
}

.icon-badge svg {
  width: 24px;
  height: 24px;
}

/* About / flow */

.about-lead {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 40px;
}

.flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.flow-step {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 10px 20px;
  font-weight: 700;
  color: var(--color-ink);
  white-space: nowrap;
}

.flow-step-accent {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #ffffff;
}

.flow-arrow {
  color: var(--color-accent);
  font-weight: 700;
}

/* Contact */

.contact {
  background: var(--color-dark);
  color: #ffffff;
}

.contact h2 {
  color: #ffffff;
}

.contact-inner {
  text-align: center;
  max-width: 520px;
}

.contact p {
  color: #cfd8ea;
  margin: 0 0 28px;
}

.contact-email {
  display: inline-block;
  background: #ffffff;
  color: var(--color-ink);
  font-family: inherit;
  font-weight: 700;
  font-size: 1.1rem;
  padding: 14px 28px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  user-select: all;
  min-width: 260px;
}

/* Footer */

.footer {
  padding: 32px 0;
  text-align: center;
  color: var(--color-muted);
  font-size: 0.875rem;
}

.footer-name {
  font-weight: 700;
  color: var(--color-ink);
  margin: 0 0 4px;
}