/* ============================================================
   หน้าแรก — บริการสร้างเซลเพจ (Landing Page)
   ใช้ CSS variables จาก style.css (ธีมสว่าง/มืด)
   Prefix: lp- (landing) เพื่อไม่ชนกับคลาสเดิม
   ============================================================ */

/* ---------- Nav ---------- */
.lp-nav {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; padding: 14px 32px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 50;
  box-shadow: var(--shadow-sm);
}
.lp-nav .brand { display: flex; align-items: center; gap: 10px; font-size: 18px; font-weight: 800; color: var(--text); }
.lp-nav .brand:hover { text-decoration: none; }
.lp-nav .brand-logo { width: 38px; height: 38px; border-radius: 11px; background: var(--accent-gradient); display: flex; align-items: center; justify-content: center; box-shadow: var(--shadow-md); }
.lp-nav .nav-links { display: flex; align-items: center; gap: 22px; }
.lp-nav .nav-links a { color: var(--muted); font-size: 14px; font-weight: 600; }
.lp-nav .nav-links a:hover { color: var(--accent); text-decoration: none; }
.lp-nav .nav-actions { display: flex; align-items: center; gap: 10px; }
.lp-nav .theme-toggle { position: static; }
.lp-nav .btn { width: auto; padding: 9px 16px; font-size: 13.5px; }

/* ปุ่มเมนูมือถือ */
.lp-burger {
  display: none; width: 42px; height: 42px; align-items: center; justify-content: center;
  border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface);
  color: var(--text); cursor: pointer;
}
.lp-burger svg { width: 20px; height: 20px; }

/* ---------- Hero ---------- */
.lp-hero {
  position: relative;
  overflow: hidden;
  padding: 88px 32px 72px;
  background:
    radial-gradient(800px circle at 12% 8%, var(--ring), transparent 45%),
    radial-gradient(700px circle at 88% 90%, var(--ring), transparent 40%),
    var(--bg);
}
.lp-hero-inner {
  max-width: 1180px; margin: 0 auto;
  display: grid; grid-template-columns: 1.05fr 0.95fr;
  align-items: center; gap: 56px;
}
.lp-hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 14px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--border);
  color: var(--accent); font-size: 13px; font-weight: 700;
  box-shadow: var(--shadow-sm); margin-bottom: 22px;
}
.lp-hero-badge svg { width: 15px; height: 15px; }
.lp-hero h1 {
  font-size: 52px; line-height: 1.22; font-weight: 800;
  letter-spacing: -0.8px; color: var(--text); margin-bottom: 18px;
}
.lp-hero h1 .grad { background: var(--accent-gradient); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.lp-hero p.lead { font-size: 17px; line-height: 1.85; color: var(--muted); max-width: 520px; margin-bottom: 30px; }
.lp-hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }
.lp-hero-cta .btn { width: auto; padding: 14px 26px; font-size: 15px; }
.lp-hero-note { display: flex; align-items: center; gap: 8px; margin-top: 20px; color: var(--muted); font-size: 13px; }
.lp-hero-note svg { width: 15px; height: 15px; color: var(--success); }

/* Mockup เซลเพจจำลอง */
.lp-mockup-wrap { position: relative; display: flex; justify-content: center; }
.lp-mockup-phone {
  width: 300px; border-radius: 34px; padding: 12px;
  background: linear-gradient(160deg, #4f46e5 0%, #7c3aed 55%, #c026d3 100%);
  box-shadow: 0 30px 60px rgba(99, 102, 241, 0.35);
  transform: rotate(2deg);
}
.lp-mockup-screen {
  background: #fff; border-radius: 24px; overflow: hidden;
  font-family: var(--font);
}
.lp-mockup-screen .mock-banner {
  background: linear-gradient(135deg, #4f46e5, #7c3aed);
  color: #fff; padding: 20px 18px 24px;
}
.lp-mockup-screen .mock-banner .m-tag { display: inline-block; font-size: 10px; font-weight: 700; background: rgba(255,255,255,.22); padding: 3px 8px; border-radius: 999px; margin-bottom: 10px; }
.lp-mockup-screen .mock-banner .m-title { font-size: 15px; font-weight: 800; line-height: 1.4; }
.lp-mockup-screen .mock-body { padding: 14px; }
.lp-mockup-screen .mock-img {
  height: 120px; border-radius: 14px; margin-bottom: 12px;
  background: linear-gradient(135deg, #e0e7ff 0%, #ddd6fe 50%, #fbcfe8 100%);
  display: flex; align-items: center; justify-content: center;
}
.lp-mockup-screen .mock-img svg { width: 42px; height: 42px; color: #7c3aed; }
.lp-mockup-screen .m-name { font-size: 13px; font-weight: 700; color: #1f2937; margin-bottom: 4px; }
.lp-mockup-screen .m-desc { font-size: 10.5px; color: #6b7280; line-height: 1.5; margin-bottom: 10px; }
.lp-mockup-screen .m-price { font-size: 18px; font-weight: 800; color: #dc2626; margin-bottom: 10px; }
.lp-mockup-screen .m-price small { font-size: 11px; color: #9ca3af; font-weight: 500; text-decoration: line-through; margin-left: 6px; }
.lp-mockup-screen .m-btn { display: block; text-align: center; padding: 10px; border-radius: 10px; background: linear-gradient(135deg, #4f46e5, #7c3aed); color: #fff; font-size: 12px; font-weight: 800; }
.lp-mockup-screen .m-foot { display: flex; gap: 6px; margin-top: 10px; }
.lp-mockup-screen .m-foot span { flex: 1; text-align: center; font-size: 9px; color: #6b7280; padding: 6px 4px; background: #f9fafb; border-radius: 8px; }

/* การ์ดลอย */
.lp-float-card {
  position: absolute; display: flex; align-items: center; gap: 10px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 12px 16px;
  box-shadow: var(--shadow-lg); font-size: 13px; font-weight: 700; color: var(--text);
}
.lp-float-card .f-icon { width: 34px; height: 34px; border-radius: 10px; display: flex; align-items: center; justify-content: center; }
.lp-float-card .f-icon svg { width: 17px; height: 17px; }
.lp-float-card small { display: block; font-size: 11px; font-weight: 600; color: var(--muted); }
.lp-float-1 { top: -8px; right: -6px; animation: floaty 5s ease-in-out infinite; }
.lp-float-1 .f-icon { background: var(--success-bg); color: var(--success); }
.lp-float-2 { bottom: 34px; left: -14px; animation: floaty 6s ease-in-out infinite 1s; }
.lp-float-2 .f-icon { background: var(--warning-bg); color: var(--warning); }
@keyframes floaty { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }

/* ---------- Stats bar ---------- */
.lp-stats {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  padding: 26px 32px;
}
.lp-stats-inner { max-width: 1180px; margin: 0 auto; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; text-align: center; }
.lp-stat b { display: block; font-size: 28px; font-weight: 800; background: var(--accent-gradient); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.lp-stat span { color: var(--muted); font-size: 13.5px; font-weight: 500; }

/* ---------- Section กลาง ---------- */
.lp-section { max-width: 1180px; margin: 0 auto; padding: 88px 32px; }
.lp-section-head { text-align: center; max-width: 640px; margin: 0 auto 52px; }
.lp-section-head .lp-eyebrow {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--accent); font-size: 13px; font-weight: 800; letter-spacing: 0.5px;
  margin-bottom: 12px; text-transform: uppercase;
}
.lp-section-head h2 { font-size: 36px; font-weight: 800; letter-spacing: -0.5px; color: var(--text); line-height: 1.3; }
.lp-section-head p { color: var(--muted); font-size: 15.5px; line-height: 1.8; margin-top: 12px; }

/* ---------- Features ---------- */
.lp-features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.lp-feature {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 26px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.lp-feature:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--border-strong); }
.lp-feature .f-icon { width: 46px; height: 46px; border-radius: 13px; background: var(--ring); color: var(--accent); display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.lp-feature .f-icon svg { width: 23px; height: 23px; }
.lp-feature h3 { font-size: 16.5px; font-weight: 800; color: var(--text); margin-bottom: 8px; }
.lp-feature p { font-size: 13.5px; line-height: 1.75; color: var(--muted); }

/* ---------- ขั้นตอน ---------- */
.lp-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; counter-reset: lp-step; }
.lp-step {
  position: relative; text-align: center;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 34px 26px 30px;
  box-shadow: var(--shadow-sm);
}
.lp-step .s-num {
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--accent-gradient); color: #fff; font-size: 17px; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px; box-shadow: 0 6px 16px rgba(99,102,241,.35);
}
.lp-step .s-icon { width: 30px; height: 30px; color: var(--muted); margin-bottom: 12px; }
.lp-step h3 { font-size: 16.5px; font-weight: 800; margin-bottom: 8px; }
.lp-step p { font-size: 13.5px; line-height: 1.75; color: var(--muted); }

/* ---------- ตัวอย่างธีม ---------- */
.lp-templates { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.lp-tpl {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.25s ease;
}
.lp-tpl:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.lp-tpl .tpl-preview { height: 240px; display: flex; align-items: center; justify-content: center; }
.lp-tpl .tpl-preview svg { width: 90px; height: 90px; opacity: 0.9; }
.lp-tpl-1 .tpl-preview { background: linear-gradient(135deg, #eef2ff 0%, #e0e7ff 100%); color: #4f46e5; }
.lp-tpl-2 .tpl-preview { background: linear-gradient(135deg, #fff1f2 0%, #ffe4e6 100%); color: #e11d48; }
.lp-tpl-3 .tpl-preview { background: linear-gradient(135deg, #ecfdf5 0%, #d1fae5 100%); color: #059669; }
.lp-tpl .tpl-info { padding: 18px 20px; border-top: 1px solid var(--border); }
.lp-tpl .tpl-info h3 { font-size: 15px; font-weight: 800; margin-bottom: 3px; }
.lp-tpl .tpl-info p { font-size: 12.5px; color: var(--muted); }

/* ---------- ราคา ---------- */
.lp-pricing { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; align-items: start; }
.lp-price {
  position: relative;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-xl); padding: 30px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.25s ease;
}
.lp-price:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.lp-price .p-name { font-size: 15px; font-weight: 800; color: var(--text); margin-bottom: 14px; }
.lp-price .p-price { font-size: 40px; font-weight: 800; letter-spacing: -1px; color: var(--text); }
.lp-price .p-price small { font-size: 14px; font-weight: 600; color: var(--muted); letter-spacing: 0; }
.lp-price .p-desc { font-size: 13px; color: var(--muted); line-height: 1.7; margin: 10px 0 20px; }
.lp-price ul { list-style: none; margin: 0 0 24px; display: grid; gap: 10px; }
.lp-price li { display: flex; align-items: center; gap: 9px; font-size: 13.5px; color: var(--text); }
.lp-price li svg { width: 15px; height: 15px; color: var(--success); flex-shrink: 0; }
.lp-price .btn { width: 100%; }
.lp-price-featured {
  border: 2px solid var(--accent);
  box-shadow: 0 16px 40px rgba(99, 102, 241, 0.18);
}
.lp-price-pop {
  position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
  background: var(--accent-gradient); color: #fff;
  font-size: 11.5px; font-weight: 800; letter-spacing: 0.3px;
  padding: 5px 14px; border-radius: 999px;
  box-shadow: var(--shadow-md); white-space: nowrap;
}

/* ---------- FAQ ---------- */
.lp-faq { max-width: 720px; margin: 0 auto; display: grid; gap: 12px; }
.lp-faq-item {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
}
.lp-faq-q {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 14px;
  padding: 17px 20px; text-align: left;
  background: none; border: none; cursor: pointer;
  font-family: var(--font); font-size: 14.5px; font-weight: 700; color: var(--text);
}
.lp-faq-q .chev { flex-shrink: 0; width: 18px; height: 18px; color: var(--muted); transition: transform 0.25s ease; }
.lp-faq-item.open .chev { transform: rotate(180deg); }
.lp-faq-a {
  max-height: 0; overflow: hidden; transition: max-height 0.3s ease;
  font-size: 13.5px; line-height: 1.8; color: var(--muted);
  padding: 0 20px;
}
.lp-faq-item.open .lp-faq-a { max-height: 300px; padding: 0 20px 18px; }

/* ---------- CTA แบนเนอร์ ---------- */
.lp-cta {
  max-width: 1180px; margin: 0 auto; padding: 0 32px 96px;
}
.lp-cta-box {
  position: relative; overflow: hidden;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #c026d3 100%);
  color: #fff; text-align: center;
  padding: 64px 32px;
  box-shadow: 0 24px 60px rgba(124, 58, 237, 0.35);
}
.lp-cta-box::before {
  content: ''; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.08) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse at 50% 0%, black 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 0%, black 20%, transparent 75%);
}
.lp-cta-box > * { position: relative; z-index: 1; }
.lp-cta-box h2 { font-size: 34px; font-weight: 800; letter-spacing: -0.5px; margin-bottom: 14px; }
.lp-cta-box p { font-size: 15.5px; opacity: 0.92; margin-bottom: 30px; }
.lp-cta-box .btn {
  width: auto; padding: 15px 34px; font-size: 15.5px;
  background: #fff; color: #4f46e5; box-shadow: 0 10px 24px rgba(0,0,0,.18);
}
.lp-cta-box .btn:hover { transform: translateY(-2px); }
.lp-cta-note { margin-top: 16px; font-size: 12.5px; opacity: 0.8; }

/* ---------- Footer ---------- */
.lp-footer { border-top: 1px solid var(--border); background: var(--surface); padding: 40px 32px 32px; }
.lp-footer-inner { max-width: 1180px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.lp-footer .brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 16px; }
.lp-footer .brand-logo { width: 32px; height: 32px; border-radius: 9px; }
.lp-footer-links { display: flex; gap: 20px; }
.lp-footer-links a { color: var(--muted); font-size: 13.5px; font-weight: 600; }
.lp-footer-links a:hover { color: var(--accent); text-decoration: none; }
.lp-footer-copy { width: 100%; margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--border); text-align: center; color: var(--muted); font-size: 12.5px; }

/* ---------- Reveal on scroll ---------- */
.lp-reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.6s ease, transform 0.6s ease; }
.lp-reveal.visible { opacity: 1; transform: translateY(0); }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .lp-hero h1 { font-size: 42px; }
  .lp-features, .lp-pricing { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .lp-nav .nav-links { display: none; }
  .lp-burger { display: flex; }
  .lp-nav.nav-open .nav-links {
    display: flex; flex-direction: column; align-items: flex-start; gap: 6px;
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--surface); border-bottom: 1px solid var(--border);
    padding: 14px 32px 18px; box-shadow: var(--shadow-md);
  }
  .lp-nav.nav-open .nav-links a { padding: 8px 0; font-size: 15px; }
  .lp-hero-inner { grid-template-columns: 1fr; gap: 48px; text-align: center; }
  .lp-hero p.lead { margin-left: auto; margin-right: auto; }
  .lp-hero-cta, .lp-hero-note { justify-content: center; }
  .lp-mockup-wrap { margin-top: 8px; }
  .lp-stats-inner { grid-template-columns: repeat(2, 1fr); gap: 18px; }
  .lp-features { grid-template-columns: 1fr; }
  .lp-steps, .lp-templates { grid-template-columns: 1fr; }
  .lp-pricing { grid-template-columns: 1fr; max-width: 460px; margin: 0 auto; }
  .lp-section { padding: 64px 20px; }
  .lp-hero { padding: 64px 20px 56px; }
  .lp-cta { padding: 0 20px 64px; }
}