@import url('https://fonts.googleapis.com/css2?family=Inter:wght@200;300;400;500;600&display=swap');

:root {
  --brand-navy: #081225;
  --brand-navy-light: #142544;
  --brand-accent: #00B4D8;
  --text-main: #333333;
  --text-muted: #64748b;
  --transition-slow: all 0.5s cubic-bezier(0.25, 1, 0.5, 1);
  --transition-fast: all 0.2s ease-in-out;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  color: var(--text-main);
  background-color: #ffffff;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography utilities */
.font-extralight { font-weight: 200; }
.font-light { font-weight: 300; }
.font-regular { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }

.tracking-widest { letter-spacing: 0.15em; }
.tracking-wide { letter-spacing: 0.05em; }

/* Navigation */
.nav-transparent {
  background-color: transparent;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-scrolled {
  background-color: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.03);
}

/* Link Underline Animation */
.nav-link {
  position: relative;
  text-decoration: none;
}
.nav-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 1px;
  bottom: -4px;
  left: 0;
  background-color: currentColor;
  transition: var(--transition-slow);
}
.nav-link:hover::after {
  width: 100%;
}

/* Premium Inputs */
.input-minimal {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid #e2e8f0;
  padding: 12px 0;
  font-size: 0.95rem;
  color: var(--brand-navy);
  transition: var(--transition-slow);
}

.input-minimal:focus {
  outline: none;
  border-bottom-color: var(--brand-navy);
}

.input-minimal::placeholder {
  color: #94a3b8;
  font-weight: 300;
}

/* Buttons */
.btn-premium {
  display: inline-block;
  background-color: var(--brand-navy);
  color: #ffffff;
  padding: 16px 40px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-weight: 500;
  transition: var(--transition-slow);
  border: 1px solid var(--brand-navy);
}

.btn-premium:hover {
  background-color: transparent;
  color: var(--brand-navy);
}

.btn-premium-light {
  display: inline-block;
  background-color: transparent;
  color: #ffffff;
  padding: 16px 40px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-weight: 500;
  transition: var(--transition-slow);
  border: 1px solid rgba(255, 255, 255, 0.5);
}

.btn-premium-light:hover {
  background-color: #ffffff;
  color: var(--brand-navy);
  border-color: #ffffff;
}

/* Service Card Hover */
.service-card {
  transition: var(--transition-slow);
  background: #ffffff;
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px -10px rgba(13, 26, 42, 0.08);
}

/* Hero Overlay */
.hero-overlay {
  background: linear-gradient(to bottom, rgba(8, 18, 37, 0.8) 0%, rgba(8, 18, 37, 0.4) 100%);
}

.page-header-overlay {
  background: linear-gradient(to right, rgba(8, 18, 37, 0.95) 0%, rgba(8, 18, 37, 0.7) 100%);
}