:root {
  --bg: #ffffff;
  --bg-secondary: #f5f5f7;
  --text-primary: #1d1d1f;
  --text-secondary: #6e6e73;
  --border: #d2d2d7;
  --accent-start: #3a7bd5;
  --accent-end: #4ecdc4;
  --radius: 18px;
  --font: -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
}

/* ─── Header ─────────────────────────────────── */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  color: var(--text-primary);
}

.logo-link img {
  height: 36px;
}

.logo-link span {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.3px;
}

nav {
  display: flex;
  gap: 32px;
}

nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s;
}

nav a:hover,
nav a.active {
  color: var(--text-primary);
}

/* ─── Footer ─────────────────────────────────── */
footer {
  border-top: 1px solid var(--border);
  padding: 48px 24px;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

footer img {
  height: 40px;
  opacity: 0.4;
}

footer p {
  font-size: 12px;
  color: var(--text-secondary);
}

/* ─── Utilities ───────────────────────────────── */
.gradient-text {
  background: linear-gradient(135deg, var(--accent-start), var(--accent-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: 980px;
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  background: linear-gradient(135deg, var(--accent-start), var(--accent-end));
  color: #fff;
  transition: opacity 0.2s, transform 0.2s;
}

.btn:hover {
  opacity: 0.85;
  transform: translateY(-1px);
}

/* ─── Service Cards ───────────────────────────── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.service-card {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 32px;
  border: 1px solid var(--border);
  transition: transform 0.25s, box-shadow 0.25s;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.08);
}

.service-card.placeholder {
  border-style: dashed;
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--text-secondary);
  font-size: 14px;
  min-height: 180px;
  cursor: default;
}

.service-card.placeholder:hover {
  transform: none;
  box-shadow: none;
}

.service-icon {
  font-size: 36px;
  margin-bottom: 16px;
}

.service-name {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.3px;
  margin-bottom: 8px;
}

.service-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 20px;
  flex: 1;
}

.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 980px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.3px;
}

.badge-dev {
  background: #fff3cd;
  color: #7a5c00;
}

@media (max-width: 600px) {
  nav { gap: 20px; }
  .services-grid { grid-template-columns: 1fr; }
}