:root {
  --primary: #F43152;
  --primary-dark: #D6234A;
  --secondary: #D5F1FF;
  --secondary-dark: #B8E5FF;
  --grid-line: #ECECEC;
  --text: #0A0A0A;
  --text-muted: #4A4A4A;
  --bg: #FFFFFF;
  --bg-soft: #FAFAFA;
  --border: #E5E5E5;
  --container-max: 1200px;
  --radius: 16px;
  --radius-sm: 8px;
  --transition: 0.2s ease;
}

[data-theme="dark"] {
  --grid-line: #2A2A2A;
  --text: #FAFAFA;
  --text-muted: #B0B0B0;
  --bg: #0A0A0A;
  --bg-soft: #141414;
  --border: #2A2A2A;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  transition: background var(--transition), color var(--transition);
}

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

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

[data-theme="dark"] .header {
  background: rgba(10, 10, 10, 0.85);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  font-weight: 900;
  font-size: 24px;
  letter-spacing: -0.02em;
  color: var(--text);
  text-decoration: none;
}

.logo-dot {
  color: var(--primary);
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav a {
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  font-size: 15px;
  transition: color var(--transition);
}

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

.nav-cta {
  background: var(--text);
  color: var(--bg) !important;
  padding: 10px 18px;
  border-radius: 999px;
  font-weight: 600;
}

.nav-cta:hover {
  background: var(--primary);
  color: #fff !important;
}

.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  color: var(--text);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: border-color var(--transition), color var(--transition);
}

.theme-toggle:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.theme-toggle .icon-moon {
  display: none;
}

[data-theme="dark"] .theme-toggle .icon-sun {
  display: none;
}

[data-theme="dark"] .theme-toggle .icon-moon {
  display: block;
}

/* HERO */
.hero {
  padding: 120px 0 80px;
  position: relative;
  overflow: hidden;
}

.grid-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  pointer-events: none;
  z-index: 0;
  max-width: var(--container-max);
  margin: 0 auto;
}

.grid-bg > div:not(:last-child) {
  border-right: 1px solid var(--grid-line);
}

.hero .container > * {
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-block;
  background: var(--secondary);
  color: var(--text);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 32px;
}

[data-theme="dark"] .hero-badge {
  background: rgba(213, 241, 255, 0.15);
  color: var(--secondary);
}

.hero-title {
  font-size: clamp(48px, 7vw, 96px);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 32px;
  max-width: 900px;
}

.hero-title-accent {
  color: var(--primary);
}

.hero-text {
  font-size: clamp(18px, 2vw, 22px);
  color: var(--text-muted);
  margin-bottom: 40px;
  max-width: 640px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  transition: all var(--transition);
  border: none;
  cursor: pointer;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(244, 49, 82, 0.3);
}

.btn-secondary {
  background: var(--bg-soft);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--text);
}

.btn-large {
  padding: 18px 36px;
  font-size: 18px;
}

/* STATS */
.stats {
  padding: 80px 0;
  background: var(--bg-soft);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 32px;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-number {
  display: flex;
  align-items: baseline;
  gap: 2px;
  line-height: 1;
}

.stat-value,
.stat-unit {
  font-size: clamp(48px, 5vw, 64px);
  font-weight: 900;
  color: var(--primary);
  line-height: 1;
  letter-spacing: -0.04em;
}

.stat-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  margin-top: 8px;
}

/* SERVICES */
.services {
  padding: 120px 0;
}

.section-title {
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: 16px;
}

.section-title-dot {
  color: var(--primary);
}

.section-intro {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 600px;
  margin-bottom: 56px;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.service-card {
  padding: 32px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: transform var(--transition), border-color var(--transition), background var(--transition);
}

.service-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary);
}

.service-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: #fff;
  border-radius: 14px;
  margin-bottom: 20px;
}

.service-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.service-card p {
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.55;
}

/* CONTACT */
.contact {
  padding: 120px 0;
  background: var(--bg-soft);
  border-top: 1px solid var(--border);
  text-align: center;
}

.contact-inner {
  max-width: 720px;
}

.contact .section-title,
.contact .section-intro {
  margin-left: auto;
  margin-right: auto;
}

/* FOOTER */
.footer {
  padding: 48px 0;
  background: var(--bg);
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 14px;
  margin-top: 4px;
}

.footer-meta {
  text-align: right;
  font-size: 14px;
  color: var(--text-muted);
}

.footer-tagline {
  margin-top: 4px;
  font-size: 13px;
  color: var(--text-muted);
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .nav {
    gap: 16px;
  }
  .nav a:not(.nav-cta) {
    display: none;
  }
  .grid-bg {
    grid-template-columns: repeat(4, 1fr);
  }
  .hero {
    padding: 80px 0 60px;
  }
  .services,
  .contact {
    padding: 80px 0;
  }
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
  .footer-meta {
    text-align: left;
  }
}