/* =============================================
   SlotWebTong — Mobile-First CSS
   ============================================= */

/* === Reset & Base === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --gold: #f5c518;
  --gold-dark: #d4a017;
  --dark: #0d0d1a;
  --dark2: #14142b;
  --dark3: #1e1e3a;
  --text: #f0f0f8;
  --text-muted: #c0c0dd;
  --green: #00e676;
  --red: #ff3d00;
  --radius: 10px;
  --shadow: 0 4px 24px rgba(0,0,0,0.5);
  --font: 'Sarabun', 'Noto Sans Thai', sans-serif;
}

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

body {
  font-family: var(--font);
  background: var(--dark);
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
}

a { color: var(--gold); text-decoration: underline; text-underline-offset: 3px; transition: color .2s; }
a:hover { color: var(--gold-dark); }
/* Nav and button links — ไม่ต้อง underline */
.navbar a, .nav-menu a, .btn, .btn-login, .btn-register,
.related-card, .bonus-card, .card, .footer-col a,
.breadcrumb a, .navbar__logo { text-decoration: none; }

img { max-width: 100%; height: auto; display: block; }

/* === Typography === */
h1, h2, h3, h4 { line-height: 1.3; font-weight: 700; }
h1 { font-size: clamp(1.6rem, 4vw, 2.4rem); color: var(--gold); margin-bottom: 1rem; }
h2 { font-size: clamp(1.2rem, 3vw, 1.75rem); color: #fff; margin: 2rem 0 1rem; }
h3 { font-size: clamp(1rem, 2.5vw, 1.3rem); color: var(--gold); margin: 1.5rem 0 .5rem; }
p { margin-bottom: 1rem; }
ul, ol { padding-left: 1.4rem; margin-bottom: 1rem; }
li { margin-bottom: .4rem; }

/* === Layout === */
.container { max-width: 1100px; margin: 0 auto; padding: 0 16px; }
.section { padding: 48px 0; }
.section--dark { background: var(--dark2); }
.section--darker { background: var(--dark3); }

/* === Header / Navbar === */
.site-header {
  background: var(--dark2);
  border-bottom: 2px solid var(--gold);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  max-width: 1100px;
  margin: 0 auto;
  gap: 12px;
}

.navbar__logo {
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--gold);
  letter-spacing: 1px;
  white-space: nowrap;
}

.navbar__logo span { color: #fff; }

/* Hamburger */
.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 26px;
  height: 3px;
  background: var(--gold);
  border-radius: 2px;
  transition: .3s;
}

/* Nav menu */
.nav-menu {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: var(--dark3);
  padding: 12px 16px;
  border-top: 1px solid #333;
}
.nav-menu.open { display: flex; }
.nav-menu a {
  color: var(--text);
  padding: 8px 4px;
  font-size: .95rem;
  border-bottom: 1px solid #2a2a45;
}
.nav-menu a:hover { color: var(--gold); }

/* CTA buttons in nav */
.navbar__cta {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

.btn-login, .btn-register {
  padding: 8px 14px;
  border-radius: var(--radius);
  font-size: .85rem;
  font-weight: 700;
  white-space: nowrap;
  transition: .2s;
}
.btn-login {
  background: transparent;
  border: 2px solid var(--gold);
  color: var(--gold);
}
.btn-login:hover { background: var(--gold); color: var(--dark); }
.btn-register {
  background: var(--gold);
  border: 2px solid var(--gold);
  color: var(--dark);
}
.btn-register:hover { background: var(--gold-dark); border-color: var(--gold-dark); }

/* === Breadcrumb === */
.breadcrumb {
  padding: 10px 0;
  font-size: .85rem;
  color: var(--text-muted);
}
.breadcrumb ol { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 4px; }
.breadcrumb li::after { content: '›'; margin-left: 4px; color: var(--text-muted); }
.breadcrumb li:last-child::after { display: none; }
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--gold); }

/* === Hero === */
.hero {
  background: linear-gradient(135deg, var(--dark2) 0%, #1a0a3d 60%, var(--dark) 100%);
  padding: 64px 16px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(245,197,24,.12) 0%, transparent 70%);
}
.hero__content { position: relative; z-index: 1; max-width: 800px; margin: 0 auto; }
.hero__title { color: var(--gold); margin-bottom: 1rem; }
.hero__subtitle { font-size: 1.1rem; color: var(--text-muted); margin-bottom: 2rem; }
.hero__img {
  margin: 2rem auto 0;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  max-width: 720px;
  width: 100%;
}

/* === Buttons === */
.btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 1rem;
  text-align: center;
  transition: .2s;
  cursor: pointer;
}
.btn--gold { background: var(--gold); color: var(--dark); border: 2px solid var(--gold); }
.btn--gold:hover { background: var(--gold-dark); border-color: var(--gold-dark); color: var(--dark); }
.btn--outline { background: transparent; border: 2px solid var(--gold); color: var(--gold); }
.btn--outline:hover { background: var(--gold); color: var(--dark); }
.btn--green { background: var(--green); color: #fff; border: 2px solid var(--green); }
.btn--lg { padding: 18px 40px; font-size: 1.15rem; }

/* === Cards === */
.cards { display: grid; gap: 20px; }
.card {
  background: var(--dark3);
  border: 1px solid #2a2a45;
  border-radius: var(--radius);
  padding: 24px;
  transition: border-color .2s, transform .2s;
}
.card:hover { border-color: var(--gold); transform: translateY(-3px); }
.card__icon { font-size: 2.4rem; margin-bottom: 12px; }
.card__title { font-size: 1.1rem; color: var(--gold); margin-bottom: 8px; font-weight: 700; }

/* === Features grid === */
.features { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.feature { display: flex; gap: 12px; align-items: flex-start; }
.feature__icon { font-size: 1.6rem; flex-shrink: 0; margin-top: 2px; }

/* === Bonus cards === */
.bonus-grid { display: grid; gap: 20px; }
.bonus-card {
  background: var(--dark3);
  border: 1px solid #2a2a45;
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
  transition: border-color .2s;
}
.bonus-card:hover { border-color: var(--gold); }
.bonus-card__icon { font-size: 2rem; flex-shrink: 0; }

/* === CTA Section === */
.cta-section {
  background: linear-gradient(135deg, #1a0a3d, var(--dark2));
  border: 1px solid var(--gold);
  border-radius: var(--radius);
  padding: 40px 24px;
  text-align: center;
  margin: 48px 0;
}
.cta-section h2 { color: var(--gold); }
.cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-top: 1.5rem; }

/* === FAQ === */
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: var(--dark3); border: 1px solid #2a2a45; border-radius: var(--radius); overflow: hidden; }
.faq-question {
  width: 100%;
  background: none;
  border: none;
  color: var(--text);
  padding: 16px 20px;
  font-size: 1rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-family: var(--font);
}
.faq-question:hover { color: var(--gold); }
.faq-question::after { content: '+'; font-size: 1.4rem; color: var(--gold); flex-shrink: 0; transition: .2s; }
.faq-item.open .faq-question::after { content: '−'; }
.faq-answer { display: none; padding: 0 20px 16px; color: var(--text-muted); line-height: 1.7; }
.faq-item.open .faq-answer { display: block; }

/* === Table === */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 12px 16px; border: 1px solid #2a2a45; text-align: left; }
th { background: var(--dark3); color: var(--gold); }
tr:nth-child(even) { background: rgba(255,255,255,.03); }

/* === Related links === */
.related-grid { display: grid; gap: 12px; }
.related-card {
  background: var(--dark3);
  border: 1px solid #2a2a45;
  border-radius: var(--radius);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: border-color .2s;
}
.related-card:hover { border-color: var(--gold); }
.related-card__icon { font-size: 1.4rem; flex-shrink: 0; }

/* === Badge / Tag === */
.badge {
  display: inline-block;
  background: var(--gold);
  color: var(--dark);
  padding: 3px 10px;
  border-radius: 20px;
  font-size: .78rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.badge--green { background: var(--green); color: #fff; }

/* === Trust bar === */
.trust-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  padding: 24px 16px;
  background: var(--dark3);
  border-top: 1px solid #2a2a45;
  border-bottom: 1px solid #2a2a45;
}
.trust-item { display: flex; align-items: center; gap: 8px; font-size: .9rem; color: var(--text-muted); }
.trust-item span:first-child { font-size: 1.4rem; }

/* === Steps === */
.steps { display: flex; flex-direction: column; gap: 20px; counter-reset: step; }
.step { display: flex; gap: 16px; align-items: flex-start; counter-increment: step; }
.step::before {
  content: counter(step);
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  background: var(--gold);
  color: var(--dark);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 1rem;
}

/* === Image placeholder === */
.img-placeholder {
  width: 100%;
  background: var(--dark3);
  border: 2px dashed #2a2a45;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: .85rem;
  padding: 40px 20px;
  text-align: center;
}

/* === Footer === */
.site-footer {
  background: var(--dark2);
  border-top: 2px solid var(--gold);
  padding: 48px 16px 24px;
  margin-top: 64px;
}
.footer-grid { display: grid; gap: 32px; }
.footer-col h4 { color: var(--gold); font-size: 1rem; margin-bottom: 12px; }
.footer-col ul { list-style: none; padding: 0; }
.footer-col li { margin-bottom: 8px; }
.footer-col a { color: var(--text-muted); font-size: .9rem; }
.footer-col a:hover { color: var(--gold); }
.footer-bottom {
  border-top: 1px solid #2a2a45;
  margin-top: 32px;
  padding-top: 16px;
  text-align: center;
  font-size: .82rem;
  color: var(--text-muted);
}
.footer-logo { font-size: 1.3rem; font-weight: 900; color: var(--gold); margin-bottom: 8px; }

/* === Responsive (tablet+) === */
@media (min-width: 600px) {
  .nav-toggle { display: none; }
  .nav-menu { display: flex; flex-direction: row; background: none; padding: 0; border: none; gap: 4px; align-items: center; }
  .nav-menu a { border: none; font-size: .88rem; padding: 6px 8px; border-radius: 6px; }
  .nav-menu a:hover { background: rgba(245,197,24,.1); }

  .cards { grid-template-columns: repeat(2, 1fr); }
  .bonus-grid { grid-template-columns: repeat(2, 1fr); }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 900px) {
  .cards { grid-template-columns: repeat(3, 1fr); }
  .bonus-grid { grid-template-columns: repeat(2, 1fr); }
  .related-grid { grid-template-columns: repeat(4, 1fr); }
  .footer-grid { grid-template-columns: repeat(4, 1fr); }
  .features { grid-template-columns: repeat(4, 1fr); }
  .hero { padding: 80px 16px 64px; }
}

/* === Utility === */
.text-center { text-align: center; }
.text-gold { color: var(--gold); }
.text-muted { color: var(--text-muted); }
.mt-1 { margin-top: 8px; } .mt-2 { margin-top: 16px; } .mt-3 { margin-top: 24px; } .mt-4 { margin-top: 32px; }
.mb-1 { margin-bottom: 8px; } .mb-2 { margin-bottom: 16px; } .mb-3 { margin-bottom: 24px; }
.gap-2 { gap: 16px; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.w-full { width: 100%; }