/* ============================================
   เสียงน้องต่าย Audio2465
   Premium Dark Event Sound — Black + Gold
   ============================================ */

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

:root {
  --bg-deep: #0a0a0a;
  --bg-dark: #121212;
  --bg-card: #1a1a1a;
  --bg-elevated: #1f1f1f;
  --gold: #d4af37;
  --gold-bright: #f5d061;
  --gold-deep: #a8842a;
  --gold-dark: #6b5318;
  --text-main: #f0f0f0;
  --text-soft: #c0c0c0;
  --text-muted: #888;
  --border-gold: rgba(212, 175, 55, 0.25);
  --border-soft: rgba(255, 255, 255, 0.08);
  --shadow-gold: 0 6px 30px rgba(212, 175, 55, 0.25);
  --shadow-deep: 0 10px 40px rgba(0, 0, 0, 0.6);
  --gradient-gold: linear-gradient(135deg, #d4af37 0%, #f5d061 50%, #a8842a 100%);
  --gradient-dark: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Prompt', 'Sarabun', sans-serif;
  background: var(--bg-deep);
  color: var(--text-main);
  line-height: 1.7;
  overflow-x: hidden;
  position: relative;
}

/* Subtle grid pattern bg */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 10%, rgba(212, 175, 55, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 80% 80%, rgba(212, 175, 55, 0.06) 0%, transparent 40%);
  pointer-events: none;
  z-index: -1;
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ============== HEADER ============== */
.header {
  background: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-gold);
  padding: 14px 0;
  position: sticky;
  top: 0;
  z-index: 1000;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-main);
}
.logo img {
  width: 50px; height: 50px;
  border-radius: 50%;
  background: var(--bg-card);
  padding: 4px;
  border: 2px solid var(--gold);
  box-shadow: 0 0 20px rgba(212, 175, 55, 0.4);
}
.logo-text h1 {
  font-size: 1.1rem;
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 700;
  letter-spacing: 0.5px;
}
.logo-text p {
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 1.5px;
  text-transform: uppercase;
}
.header-cta {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.btn-call, .btn-line {
  padding: 10px 18px;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.88rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.3s;
  letter-spacing: 0.5px;
}
.btn-call {
  background: var(--gradient-gold);
  color: #0a0a0a;
  border: 1px solid var(--gold);
}
.btn-call:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-gold);
}
.btn-line {
  background: transparent;
  color: #06C755;
  border: 1px solid #06C755;
}
.btn-line:hover {
  background: #06C755;
  color: #fff;
  transform: translateY(-2px);
}

/* ============== HERO ============== */
.hero {
  padding: 80px 0 70px;
  text-align: center;
  position: relative;
  background:
    linear-gradient(180deg, transparent 0%, rgba(212, 175, 55, 0.04) 100%),
    radial-gradient(ellipse at center, rgba(212, 175, 55, 0.12) 0%, transparent 70%);
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(212, 175, 55, 0.1);
  color: var(--gold-bright);
  padding: 8px 20px;
  border-radius: 30px;
  font-size: 0.82rem;
  font-weight: 500;
  margin-bottom: 24px;
  border: 1px solid var(--border-gold);
  letter-spacing: 1px;
  text-transform: uppercase;
}
.hero-badge::before {
  content: '';
  width: 6px; height: 6px;
  background: var(--gold);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--gold);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}
.hero h2 {
  font-size: 2.6rem;
  margin-bottom: 18px;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.5px;
}
.hero h2 .gold {
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero p {
  font-size: 1.05rem;
  color: var(--text-soft);
  max-width: 720px;
  margin: 0 auto 32px;
}
.hero-cta {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}
.cta-big {
  padding: 14px 32px;
  border-radius: 4px;
  font-weight: 600;
  font-size: 1rem;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: all 0.3s;
  letter-spacing: 0.5px;
}
.cta-big.gold {
  background: var(--gradient-gold);
  color: #0a0a0a;
  border: 1px solid var(--gold);
}
.cta-big.gold:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-gold);
}
.cta-big.line {
  background: transparent;
  color: #06C755;
  border: 1px solid #06C755;
}
.cta-big.line:hover {
  background: #06C755;
  color: #fff;
  transform: translateY(-3px);
}

/* ============== SECTIONS ============== */
section { padding: 70px 0; position: relative; }

.section-title {
  text-align: center;
  margin-bottom: 50px;
}
.section-title .chip {
  display: inline-block;
  color: var(--gold-bright);
  padding: 4px 14px;
  border-radius: 0;
  font-size: 0.78rem;
  font-weight: 500;
  margin-bottom: 14px;
  border-top: 1px solid var(--gold);
  border-bottom: 1px solid var(--gold);
  letter-spacing: 2px;
  text-transform: uppercase;
}
.section-title h3 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.3px;
}
.section-title h3 .gold {
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-title p {
  color: var(--text-soft);
  max-width: 620px;
  margin: 0 auto;
}

/* ============== SERVICES ============== */
.services-bg { background: var(--bg-dark); }
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 22px;
}
.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: 8px;
  padding: 32px 24px;
  transition: all 0.4s;
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 2px;
  background: var(--gradient-gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s;
}
.service-card:hover {
  border-color: var(--gold);
  transform: translateY(-6px);
  box-shadow: var(--shadow-gold);
}
.service-card:hover::before {
  transform: scaleX(1);
}
.service-icon {
  width: 60px; height: 60px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.8rem;
  margin-bottom: 18px;
  background: rgba(212, 175, 55, 0.1);
  border: 1px solid var(--gold);
  border-radius: 8px;
  color: var(--gold-bright);
}
.service-card h4 {
  font-size: 1.1rem;
  margin-bottom: 10px;
  color: var(--text-main);
  font-weight: 600;
}
.service-card h4 a { color: inherit; }
.service-card h4 a:hover { color: var(--gold-bright); }
.service-card p {
  color: var(--text-soft);
  font-size: 0.93rem;
}

/* ============== HIGHLIGHTS ============== */
.highlights {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
}
.highlight-item {
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: 8px;
  padding: 26px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
  transition: all 0.3s;
}
.highlight-item:hover {
  border-color: var(--gold);
  transform: translateX(4px);
}
.highlight-item .num {
  width: 44px; height: 44px;
  background: var(--gradient-gold);
  color: #0a0a0a;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.highlight-item h4 {
  color: var(--gold-bright);
  margin-bottom: 6px;
  font-size: 1.05rem;
  font-weight: 600;
}
.highlight-item p {
  color: var(--text-soft);
  font-size: 0.92rem;
}

/* ============== GALLERY ============== */
.gallery-bg {
  background: var(--bg-dark);
}
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 14px;
}
.gallery-item {
  border-radius: 6px;
  overflow: hidden;
  aspect-ratio: 1;
  cursor: pointer;
  border: 1px solid var(--border-soft);
  transition: all 0.4s;
  position: relative;
}
.gallery-item::after {
  content: '🔍';
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  opacity: 0;
  transition: opacity 0.3s;
  color: var(--gold-bright);
}
.gallery-item:hover {
  border-color: var(--gold);
  transform: scale(1.03);
  box-shadow: var(--shadow-gold);
}
.gallery-item:hover::after { opacity: 1; }
.gallery-item img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.5s;
}
.gallery-item:hover img { transform: scale(1.1); }

/* ============== CONTENT ============== */
.content-section { background: var(--bg-deep); }
.content-block {
  max-width: 880px;
  margin: 0 auto;
}
.content-block h3 {
  color: var(--gold-bright);
  font-size: 1.5rem;
  margin: 32px 0 14px;
  font-weight: 600;
  position: relative;
  padding-left: 18px;
}
.content-block h3::before {
  content: '';
  position: absolute;
  left: 0; top: 8px;
  width: 4px;
  height: 80%;
  background: var(--gradient-gold);
}
.content-block p {
  margin-bottom: 16px;
  color: var(--text-soft);
  font-size: 1rem;
}
.content-block a {
  color: var(--gold-bright);
  font-weight: 500;
  border-bottom: 1px dotted var(--gold);
  transition: all 0.2s;
}
.content-block a:hover {
  color: var(--gold);
  border-bottom-style: solid;
}
.content-img {
  border-radius: 8px;
  margin: 22px 0;
  border: 1px solid var(--border-gold);
  width: 100%;
  box-shadow: var(--shadow-deep);
}

/* ============== REVIEWS ============== */
.reviews-bg { background: var(--bg-dark); }
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 22px;
}
.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: 10px;
  padding: 28px;
  position: relative;
  transition: all 0.3s;
}
.review-card::before {
  content: '"';
  position: absolute;
  top: -10px; left: 22px;
  font-size: 4.5rem;
  color: var(--gold);
  font-family: serif;
  line-height: 1;
  opacity: 0.5;
}
.review-card:hover {
  border-color: var(--gold);
  transform: translateY(-3px);
}
.review-stars {
  color: var(--gold-bright);
  margin-bottom: 12px;
  font-size: 1.05rem;
  letter-spacing: 2px;
}
.review-text {
  color: var(--text-soft);
  margin-bottom: 16px;
  font-size: 0.96rem;
  font-style: italic;
}
.review-author {
  display: flex; align-items: center; gap: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border-soft);
}
.review-avatar-img {
  width: 50px; height: 50px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--gold);
}
.review-author small {
  color: var(--text-muted);
  font-size: 0.78rem;
  display: block;
}
.review-author strong {
  color: var(--gold-bright);
  font-weight: 600;
  font-size: 0.95rem;
}

/* ============== FAQ ============== */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
}
.faq-item {
  background: var(--bg-card);
  margin-bottom: 12px;
  border-radius: 6px;
  border: 1px solid var(--border-soft);
  overflow: hidden;
  transition: all 0.3s;
}
.faq-item.active {
  border-color: var(--gold);
  box-shadow: var(--shadow-gold);
}
.faq-q {
  padding: 18px 22px;
  cursor: pointer;
  font-weight: 600;
  color: var(--text-main);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1rem;
  transition: color 0.2s;
}
.faq-item.active .faq-q { color: var(--gold-bright); }
.faq-q::after {
  content: '+';
  font-size: 1.5rem;
  color: var(--gold);
  transition: transform 0.3s;
  font-weight: 300;
}
.faq-item.active .faq-q::after {
  transform: rotate(45deg);
}
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: all 0.4s;
  padding: 0 22px;
  color: var(--text-soft);
  font-size: 0.95rem;
}
.faq-item.active .faq-a {
  max-height: 300px;
  padding: 0 22px 18px;
}

/* ============== CONTACT CTA ============== */
.contact-cta {
  background: linear-gradient(135deg, #1a1a1a 0%, #0a0a0a 100%);
  border: 1px solid var(--gold);
  border-radius: 12px;
  padding: 56px 32px;
  text-align: center;
  margin: 50px 20px;
  position: relative;
  overflow: hidden;
}
.contact-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(212, 175, 55, 0.15), transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(212, 175, 55, 0.1), transparent 50%);
  pointer-events: none;
}
.contact-cta > * { position: relative; z-index: 1; }
.contact-cta h3 {
  font-size: 1.9rem;
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 14px;
  font-weight: 700;
}
.contact-cta p {
  color: var(--text-soft);
  margin-bottom: 28px;
}
.contact-buttons {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ============== FOOTER ============== */
.footer {
  background: var(--bg-deep);
  color: var(--text-muted);
  padding: 36px 0 24px;
  text-align: center;
  font-size: 0.9rem;
  border-top: 1px solid var(--border-gold);
}
.footer a {
  color: var(--gold-bright);
  transition: color 0.2s;
}
.footer a:hover { color: var(--gold); }
.footer-links {
  display: flex;
  gap: 22px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-soft);
}

/* ============== FLOATING ============== */
.float-btn {
  position: fixed;
  width: 56px; height: 56px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  z-index: 999;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5);
  transition: all 0.3s;
}
.float-call {
  bottom: 90px; right: 20px;
  background: var(--gradient-gold);
  color: #0a0a0a;
  border: 2px solid var(--gold);
}
.float-line {
  bottom: 20px; right: 20px;
  background: #06C755;
  color: #fff;
}
.float-btn:hover { transform: scale(1.1); }

/* ============== LIGHTBOX ============== */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.95);
  z-index: 9999;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.lightbox.active { display: flex; }
.lightbox img {
  max-width: 90%;
  max-height: 90vh;
  border-radius: 8px;
  border: 2px solid var(--gold);
  box-shadow: 0 0 60px rgba(212, 175, 55, 0.4);
}
.lightbox-close {
  position: absolute;
  top: 20px; right: 20px;
  width: 50px; height: 50px;
  background: var(--gradient-gold);
  color: #0a0a0a;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem;
  cursor: pointer;
  font-weight: 700;
}

/* ============== ANIMATIONS ============== */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.7s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============== RESPONSIVE ============== */
@media (max-width: 768px) {
  .hero { padding: 50px 0 40px; }
  .hero h2 { font-size: 1.7rem; }
  .hero p { font-size: 0.95rem; }
  .section-title h3 { font-size: 1.5rem; }
  .logo-text h1 { font-size: 0.95rem; }
  .logo-text p { font-size: 0.65rem; }
  .btn-call, .btn-line { font-size: 0.8rem; padding: 8px 14px; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  section { padding: 50px 0; }
  .contact-cta { padding: 40px 20px; margin: 30px 14px; }
  .contact-cta h3 { font-size: 1.4rem; }
}
@media (max-width: 480px) {
  .hero h2 { font-size: 1.4rem; }
  .header-cta .btn-line span,
  .header-cta .btn-call span { display: none; }
  .float-btn { width: 50px; height: 50px; font-size: 1.3rem; }
}