@import url('variables.css');

/* Reset & Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-bg);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p {
  margin-bottom: var(--spacing-md);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

/* Container & Layout */
.container {
  width: 100%;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  max-width: 1200px;
}

/* ==================== Header ==================== */
header {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(229, 231, 235, 0.8);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  box-shadow: 0 1px 8px rgba(0, 0, 0, 0.06);
  transition: box-shadow var(--transition-normal);
}

header.scrolled {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) 0;
  min-height: 60px;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  text-decoration: none;
  color: var(--color-primary);
  transition: opacity var(--transition-fast);
}

.logo:hover {
  opacity: 0.85;
  text-decoration: none;
}

.logo-icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.logo-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.5px;
}

.logo-tagline {
  font-size: 0.6rem;
  color: var(--color-text-light);
  font-weight: 500;
  letter-spacing: 0.5px;
  margin-top: 2px;
}

/* Navigation */
nav {
  display: flex;
  gap: var(--spacing-xs);
  align-items: center;
}

nav ul {
  display: flex;
  gap: var(--spacing-xl);
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
}

nav a {
  font-weight: var(--font-weight-medium);
  font-size: 0.9rem;
  color: var(--color-text);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  position: relative;
}

nav a:hover {
  color: var(--color-primary);
  background: rgba(0, 102, 204, 0.06);
  text-decoration: none;
}

nav a.active {
  color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
}

nav a.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: var(--spacing-md);
  right: var(--spacing-md);
  height: 2px;
  background: var(--color-primary);
  border-radius: 1px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: var(--spacing-sm);
  border-radius: var(--radius-md);
  transition: background var(--transition-fast);
}

.nav-toggle:hover {
  background: rgba(0, 0, 0, 0.05);
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background-color: var(--color-text);
  transition: all var(--transition-fast);
  border-radius: 1px;
}

/* ==================== Footer ==================== */
footer {
  background: linear-gradient(180deg, var(--color-bg-light) 0%, #edf0f4 100%);
  border-top: 1px solid var(--color-border);
  padding: 3rem 0 2rem;
  margin-top: 0;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 2rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.footer-brand .logo {
  font-size: var(--font-size-xl);
}

.footer-brand-desc {
  font-size: 0.85rem;
  color: var(--color-text-light);
  line-height: 1.7;
  max-width: 320px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-section h4 {
  margin-bottom: var(--spacing-md);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.5px;
}

.footer-section ul {
  list-style: none;
}

.footer-section li {
  margin-bottom: var(--spacing-sm);
}

.footer-section a {
  font-size: 0.85rem;
  color: var(--color-text-light);
  transition: color var(--transition-fast);
}

.footer-section a:hover {
  color: var(--color-primary);
  text-decoration: none;
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
  color: var(--color-text-lighter);
  font-size: var(--font-size-xs);
  letter-spacing: 0.3px;
}

/* ==================== Section Dividers ==================== */
.section-wave {
  width: 100%;
  height: 80px;
  display: block;
  line-height: 0;
  overflow: hidden;
}

.section-wave svg {
  width: 100%;
  height: 100%;
}

.section-wave-reverse {
  transform: scaleY(-1);
}

/* ==================== Buttons ==================== */
.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all var(--transition-normal);
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: white;
}

.btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: var(--shadow-md);
}

.btn-accent {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  color: white;
}

.btn-accent:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--color-accent-dark) 0%, var(--color-accent) 100%);
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-accent:active {
  transform: translateY(0);
  box-shadow: var(--shadow-md);
}

/* ==================== Cards ==================== */
.card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

/* ==================== Badges ==================== */
.badge {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-market {
  background-color: var(--color-badge-market-bg);
  color: var(--color-badge-market);
}

.badge-fixed {
  background-color: var(--color-badge-fixed-bg);
  color: var(--color-badge-fixed);
}

/* ==================== SVG Trust Icons ==================== */
.trust-svg-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(0, 102, 204, 0.1) 0%, rgba(0, 102, 204, 0.04) 100%);
  border-radius: var(--radius-xl);
  padding: 12px;
}

.trust-svg-icon svg {
  width: 32px;
  height: 32px;
}

/* ==================== Animations ==================== */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes pulse-glow {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 0.8; }
}

@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-float {
  animation: float 6s ease-in-out infinite;
}

.animate-float-delay-1 {
  animation: float 6s ease-in-out 1s infinite;
}

.animate-float-delay-2 {
  animation: float 6s ease-in-out 2s infinite;
}

/* Hero floating decorations */
.hero-decoration {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  pointer-events: none;
}

.hero-decoration-1 {
  width: 300px;
  height: 300px;
  top: -80px;
  right: -60px;
  animation: float 8s ease-in-out infinite;
}

.hero-decoration-2 {
  width: 200px;
  height: 200px;
  bottom: 40px;
  left: -40px;
  animation: float 10s ease-in-out 2s infinite;
}

.hero-decoration-3 {
  width: 120px;
  height: 120px;
  top: 40%;
  right: 15%;
  animation: float 7s ease-in-out 1s infinite;
}

/* Grid pattern for hero */
.hero-grid-pattern {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 1;
}

/* ==================== Utility ==================== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--color-text-light); }

.mt { margin-top: var(--spacing-md); }
.mb { margin-bottom: var(--spacing-md); }
.pt { padding-top: var(--spacing-md); }
.pb { padding-bottom: var(--spacing-md); }

/* ==================== Responsive ==================== */
@media (max-width: 768px) {
  .container {
    padding: 0 var(--spacing-md);
  }

  nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(12px);
    padding: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
  }

  nav.active {
    display: flex;
  }

  nav a {
    padding: var(--spacing-md);
    width: 100%;
    border-radius: var(--radius-md);
  }

  .nav-toggle {
    display: flex;
  }

  h1 { font-size: var(--font-size-3xl); }
  h2 { font-size: var(--font-size-2xl); }
  h3 { font-size: var(--font-size-xl); }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .section-wave {
    height: 50px;
  }
}

@media (max-width: 640px) {
  h1 { font-size: var(--font-size-2xl); }
  h2 { font-size: var(--font-size-xl); }
  h3 { font-size: var(--font-size-lg); }

  .header-content {
    min-height: 52px;
  }

  .logo-icon {
    width: 30px;
    height: 30px;
  }

  .logo-title {
    font-size: 1.1rem;
  }

  .section-wave {
    height: 40px;
  }
}