/* FAST289 Custom Design System - Premium Dark + Gold Accent */
:root {
  --bg-primary: #050505;
  --bg-secondary: #0d0d0d;
  --bg-card: #151515;
  --bg-card-hover: #1c1c1c;
  --bg-glass: rgba(21, 21, 21, 0.75);
  
  --accent-gold: #f4c95d;
  --accent-gold-light: #ffe9a3;
  --accent-gold-dark: #b88e28;
  --accent-gold-glow: rgba(244, 201, 93, 0.35);
  
  --text-main: #ffffff;
  --text-muted: #aaaaaa;
  --text-sub: #d8d8d8;
  
  --border-gold: rgba(244, 201, 93, 0.25);
  --border-muted: rgba(255, 255, 255, 0.08);
  
  --font-family: 'Kanit', 'Sarabun', -apple-system, BlinkMacSystemFont, sans-serif;
  --container-width: 1200px;
  --header-height: 76px;
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.6;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: radial-gradient(circle at 50% 0%, #1a1508 0%, #050505 70%);
  overflow-x: hidden;
}

a {
  color: var(--accent-gold);
  text-decoration: none;
  transition: all 0.2s ease;
}

a:hover {
  color: var(--accent-gold-light);
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family);
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.3;
}

h1 {
  font-size: clamp(2rem, 4vw, 3.25rem);
  letter-spacing: -0.5px;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
}

h3 {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
}

p {
  color: var(--text-sub);
  font-size: 1.05rem;
}

/* Keyword Highlights (fast289, สล็อต, คาสิโน) */
strong, b, .brand-text, .kw-highlight {
  font-weight: 700;
  color: var(--accent-gold);
  text-shadow: 0 0 6px rgba(244, 201, 93, 0.25);
}

.kw-gold {
  color: var(--accent-gold-light);
  font-weight: 700;
}

.kw-slot {
  color: #ffe9a3;
  font-weight: 700;
}

.kw-casino {
  color: #f4c95d;
  font-weight: 700;
}

/* Header & Nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-gold);
  height: var(--header-height);
  display: flex;
  align-items: center;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo img {
  height: 48px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 0 8px var(--accent-gold-glow));
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
}

.nav-link {
  color: var(--text-sub);
  font-size: 1rem;
  font-weight: 400;
  padding: 6px 0;
  position: relative;
}

.nav-link:hover, .nav-link.active {
  color: var(--accent-gold);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent-gold);
  box-shadow: 0 0 8px var(--accent-gold);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.4rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid transparent;
  gap: 8px;
}

.btn-primary {
  background: linear-gradient(135deg, #f4c95d 0%, #b88e28 100%);
  color: #000;
  box-shadow: 0 4px 15px var(--accent-gold-glow);
  font-weight: 700;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #ffe9a3 0%, #d4af37 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(244, 201, 93, 0.5);
  color: #000;
}

.btn-outline {
  background: transparent;
  color: var(--accent-gold);
  border-color: var(--accent-gold);
}

.btn-outline:hover {
  background: rgba(244, 201, 93, 0.1);
  color: #fff;
  transform: translateY(-2px);
}

.mobile-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--accent-gold);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Mobile Drawer */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 280px;
  height: 100vh;
  background: var(--bg-card);
  z-index: 1001;
  padding: 2rem 1.5rem;
  transition: right 0.3s ease;
  border-left: 1px solid var(--border-gold);
  display: flex;
  flex-direction: column;
}

.mobile-drawer.open {
  right: 0;
}

.drawer-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0,0,0,0.7);
  z-index: 1000;
  display: none;
}

.drawer-overlay.open {
  display: block;
}

/* Hero Section */
.hero-section {
  position: relative;
  padding: 4rem 0 5rem;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2.5rem;
  align-items: center;
}

.hero-eyebrow {
  display: inline-block;
  background: rgba(244, 201, 93, 0.12);
  color: var(--accent-gold);
  border: 1px solid var(--border-gold);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 1.25rem;
}

.hero-title {
  margin-bottom: 1.25rem;
}

.hero-title span {
  color: var(--accent-gold);
  text-shadow: 0 0 12px var(--accent-gold-glow);
}

.hero-desc {
  font-size: 1.15rem;
  color: var(--text-sub);
  margin-bottom: 2rem;
  line-height: 1.8;
}

.hero-ctas {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-muted);
}

.stat-card h4 {
  font-size: 1.75rem;
  color: var(--accent-gold);
  font-weight: 700;
}

.stat-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.hero-image-wrap {
  position: relative;
}

.hero-image-wrap img {
  width: 100%;
  border-radius: 16px;
  border: 1px solid var(--border-gold);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.7);
}

/* Feature Cards & Grid */
.section {
  padding: 4.5rem 0;
}

.section-header {
  text-align: center;
  max-width: 750px;
  margin: 0 auto 3rem;
}

.section-subtitle {
  color: var(--accent-gold);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.75rem;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-muted);
  border-radius: 14px;
  padding: 2rem;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-5px);
  border-color: var(--border-gold);
  box-shadow: 0 8px 25px rgba(244, 201, 93, 0.12);
  background: var(--bg-card-hover);
}

.card-icon {
  width: 52px;
  height: 52px;
  background: rgba(244, 201, 93, 0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-gold);
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
}

.card h3 {
  margin-bottom: 0.75rem;
  font-size: 1.25rem;
}

.card p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* Articles Layout */
.article-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 2.5rem;
}

.article-content {
  background: var(--bg-card);
  border: 1px solid var(--border-muted);
  border-radius: 16px;
  padding: 2.5rem;
}

.article-content h1 {
  margin-bottom: 1rem;
}

.article-meta {
  display: flex;
  gap: 1.25rem;
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1.75rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-muted);
}

.article-body {
  font-size: 1.08rem;
  line-height: 1.85;
  color: var(--text-sub);
}

.article-body h2 {
  margin: 2rem 0 1rem;
  color: var(--accent-gold-light);
  border-left: 4px solid var(--accent-gold);
  padding-left: 12px;
}

.article-body h3 {
  margin: 1.5rem 0 0.75rem;
}

.article-body p {
  margin-bottom: 1.25rem;
}

.article-body ul, .article-body ol {
  margin: 1rem 0 1.5rem 1.75rem;
}

.article-body li {
  margin-bottom: 0.5rem;
}

.sidebar-box {
  background: var(--bg-card);
  border: 1px solid var(--border-muted);
  border-radius: 14px;
  padding: 1.5rem;
  margin-bottom: 1.75rem;
}

.sidebar-box h4 {
  color: var(--accent-gold);
  font-size: 1.1rem;
  margin-bottom: 1rem;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-muted);
}

.sidebar-list {
  list-style: none;
}

.sidebar-list li {
  margin-bottom: 0.85rem;
}

.sidebar-list a {
  color: var(--text-sub);
  font-size: 0.95rem;
  display: block;
  transition: color 0.2s ease;
}

.sidebar-list a:hover {
  color: var(--accent-gold);
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag-badge {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border-muted);
  color: var(--text-sub);
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.85rem;
}

.tag-badge:hover {
  border-color: var(--accent-gold);
  color: var(--accent-gold);
}

/* Accordion FAQ */
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-muted);
  border-radius: 10px;
  margin-bottom: 1rem;
  overflow: hidden;
}

.faq-header {
  padding: 1.25rem 1.5rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 500;
  color: var(--text-main);
}

.faq-header:hover {
  color: var(--accent-gold);
}

.faq-body {
  padding: 0 1.5rem 1.25rem;
  display: none;
  color: var(--text-muted);
  font-size: 0.98rem;
  line-height: 1.7;
}

.faq-item.active .faq-body {
  display: block;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

/* Sticky Mobile Footer Nav */
.mobile-footer-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100vw;
  background: var(--bg-glass);
  backdrop-filter: blur(14px);
  border-top: 1px solid var(--border-gold);
  z-index: 999;
  padding: 8px 0;
}

.mobile-footer-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  text-align: center;
}

.mobile-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  color: var(--text-muted);
  font-size: 0.75rem;
  gap: 3px;
}

.mobile-nav-item i {
  font-size: 1.2rem;
}

.mobile-nav-item.active, .mobile-nav-item:hover {
  color: var(--accent-gold);
}

/* Footer */
.site-footer {
  background: #020202;
  border-top: 1px solid var(--border-muted);
  padding: 4rem 0 2rem;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 2.5rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-top: 1rem;
}

.footer-col h4 {
  color: var(--accent-gold);
  font-size: 1.1rem;
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.65rem;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.footer-links a:hover {
  color: var(--accent-gold);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--border-muted);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.88rem;
}

/* Responsive */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .article-layout {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .nav-menu {
    display: none;
  }
  .mobile-toggle {
    display: block;
  }
  .mobile-footer-nav {
    display: block;
  }
  body {
    padding-bottom: 60px;
  }
}

@media (max-width: 576px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .hero-stats {
    grid-template-columns: 1fr;
  }
}