/* ============================================================================
   SUSHIFLUX.SHOP - CASINO INFORMATION WEBSITE
   Educational Casino Game Analysis & Strategy
   ============================================================================ */

/* ============================================================================
   ROOT & RESET
   ============================================================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background-color: #0f3460;
  color: #e8e8e8;
  line-height: 1.6;
  letter-spacing: 0.3px;
  overflow-x: hidden;
}

/* ============================================================================
   TYPOGRAPHY
   ============================================================================ */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: 'IBM Plex Mono', monospace;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 1rem;
  letter-spacing: 0.5px;
}

h1 {
  font-size: 3rem;
  color: #00d4ff;
}

h2 {
  font-size: 2.25rem;
  color: #00d4ff;
  margin-bottom: 1.5rem;
}

h3 {
  font-size: 1.75rem;
  color: #7c7c87;
  margin-bottom: 1rem;
}

h4 {
  font-size: 1.5rem;
  color: #7c7c87;
  margin-bottom: 0.75rem;
}

h5 {
  font-size: 1.25rem;
  color: #e8e8e8;
  margin-bottom: 0.5rem;
}

h6 {
  font-size: 1rem;
  color: #e8e8e8;
  margin-bottom: 0.5rem;
}

p {
  margin-bottom: 1rem;
  color: #e8e8e8;
  font-size: 1rem;
}

a {
  color: #00d4ff;
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: #7c7c87;
  text-decoration: underline;
}

/* ============================================================================
   HEADER & NAVIGATION
   ============================================================================ */
.header {
  background-color: #16213e;
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  border-bottom: 2px solid #7c7c87;
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 1.5rem;
  font-weight: 700;
  color: #00d4ff;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.3s ease;
}

.logo:hover {
  color: #7c7c87;
}

.logo-text-main {
  display: block;
  letter-spacing: 1px;
}

.logo-text-sub {
  font-size: 0.65rem;
  color: #7c7c87;
  font-weight: 400;
  letter-spacing: 0.5px;
  display: block;
  line-height: 1;
}

.nav {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.nav-item {
  position: relative;
}

.nav-link {
  color: #e8e8e8;
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.5rem 0;
  display: block;
  border-bottom: 2px solid transparent;
  transition: all 0.3s ease;
}

.nav-link:hover {
  color: #00d4ff;
  border-bottom-color: #00d4ff;
  text-decoration: none;
}

.nav-link.active {
  color: #00d4ff;
  border-bottom-color: #00d4ff;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: #00d4ff;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
}

/* ============================================================================
   HERO SECTION
   ============================================================================ */
.hero {
  background: linear-gradient(135deg, #16213e 0%, #0f3460 50%, #1a4d6d 100%);
  padding: 6rem 1.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 20% 80%, rgba(0, 212, 255, 0.05) 0%, transparent 50%),
              radial-gradient(circle at 80% 20%, rgba(124, 124, 135, 0.05) 0%, transparent 50%);
  pointer-events: none;
}

.hero-content {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero .casino-icon {
  width: 64px;
  height: 64px;
  display: inline-block;
  vertical-align: middle;
  margin: 0 auto 1.5rem;
  color: #00d4ff;
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-tagline {
  font-size: 1.25rem;
  color: #7c7c87;
  margin-bottom: 2rem;
  font-weight: 500;
  letter-spacing: 0.5px;
}

.hero-description {
  font-size: 1rem;
  color: #e8e8e8;
  margin-bottom: 2.5rem;
  line-height: 1.8;
}

.cta-button {
  display: inline-block;
  background-color: #00d4ff;
  color: #0f3460;
  padding: 0.875rem 2.5rem;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid #00d4ff;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  letter-spacing: 0.5px;
  font-family: 'Inter', sans-serif;
}

.cta-button:hover {
  background-color: transparent;
  color: #00d4ff;
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 212, 255, 0.3);
}

.cta-button.secondary {
  background-color: transparent;
  color: #00d4ff;
  border-color: #00d4ff;
  margin-left: 1rem;
}

.cta-button.secondary:hover {
  background-color: #00d4ff;
  color: #0f3460;
}

/* ============================================================================
   SECTION DIVIDERS
   ============================================================================ */
.section-divider {
  height: 2px;
  background: linear-gradient(90deg, transparent, #7c7c87, transparent);
  margin: 3rem 0;
  opacity: 0.5;
}

.section-divider.accent {
  background: linear-gradient(90deg, transparent, #00d4ff, transparent);
}

/* ============================================================================
   MAIN CONTENT & SECTIONS
   ============================================================================ */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 4rem 1.5rem;
  position: relative;
}

.section.dark {
  background-color: #0f3460;
}

.section.darker {
  background-color: #0a1f2e;
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title h2 {
  margin-bottom: 0.5rem;
}

.section-subtitle {
  color: #7c7c87;
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0.5px;
}

/* ============================================================================
   CARD LAYOUTS
   ============================================================================ */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.card {
  background-color: rgba(22, 33, 62, 0.6);
  border-top: 4px solid #00d4ff;
  padding: 2rem;
  border-radius: 4px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  transition: all 0.3s ease;
  position: relative;
  backdrop-filter: blur(10px);
}

.card:hover {
  box-shadow: 0 8px 24px rgba(0, 212, 255, 0.15);
  transform: translateY(-4px);
  background-color: rgba(22, 33, 62, 0.8);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.casino-icon {
  width: 48px;
  height: 48px;
  display: inline-block;
  vertical-align: middle;
  color: #00d4ff;
  flex-shrink: 0;
}

.card-title {
  color: #00d4ff;
  font-size: 1.25rem;
  margin: 0;
  flex: 1;
}

.card-content {
  color: #e8e8e8;
  font-size: 0.95rem;
  line-height: 1.7;
}

.card-content p {
  margin-bottom: 1rem;
}

.card-content p:last-child {
  margin-bottom: 0;
}

.card-footer {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(124, 124, 135, 0.2);