/* ============================================================
   SJ88 Showcase — สไตล์ร่วม (gallery + buy + demo topbar)
   ใช้ vibe palette เดียวกับหน้าแรก sj88ai.com
   ============================================================ */
:root {
  --pink-50: #FFF1F6;  --pink-100: #FFE0EC;  --pink-200: #FFC8DC;  --pink-300: #FFA8C4;  --pink-400: #FF89AC;
  --lavender-50: #F5F1FF; --lavender-100: #E8DEFF; --lavender-200: #D4C5FF; --lavender-300: #BBA6FF; --lavender-400: #9F87F0;
  --mint-50: #EFFBF6;  --mint-100: #D6F5E5;  --mint-200: #B5EBCD;  --mint-300: #8DDBB0;   --mint-400: #65C895;
  --peach-50: #FFF5EE; --peach-100: #FFE6D4; --peach-200: #FFD0AE; --peach-300: #FFB888; --peach-400: #FF9F66;
  --bg: #FFFBF7;
  --paper: #ffffff;
  --ink: #3D2C4F;
  --ink-soft: #6B5B7B;
  --line: #EFE3F0;
  --shadow: 0 10px 30px rgba(61, 44, 79, .08);
  --radius: 18px;
  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Inter', 'IBM Plex Sans Thai', 'Sarabun', system-ui, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
img { max-width: 100%; display: block; }

.container { max-width: 1120px; margin: 0 auto; padding: 0 20px; }

/* ---------- topbar ---------- */
.apps-topbar {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 251, 247, .88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.apps-topbar-inner {
  max-width: 1120px; margin: 0 auto; padding: 12px 20px;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.apps-brand {
  font-family: var(--font-display); font-weight: 700; font-size: 20px;
  text-decoration: none; letter-spacing: -.01em;
}
.apps-brand .mark {
  display: inline-grid; place-items: center;
  width: 30px; height: 30px; border-radius: 9px;
  background: linear-gradient(135deg, var(--pink-300), var(--lavender-300));
  color: #fff; font-size: 14px; font-family: var(--font-body); font-weight: 800;
  margin-right: 9px; vertical-align: -7px;
}
.apps-topbar nav { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.apps-topbar nav a {
  text-decoration: none; font-size: 14px; font-weight: 600;
  color: var(--ink-soft); padding: 7px 13px; border-radius: 999px;
}
.apps-topbar nav a:hover { background: var(--lavender-50); color: var(--ink); }
@media (max-width: 560px) {
  .apps-topbar nav a:not(.btn-buy-top) { display: none; }
}

/* ---------- buttons ---------- */
.btn-buy, .btn-play, .btn-ghost {
  display: inline-flex; align-items: center; gap: 8px; justify-content: center;
  font-family: var(--font-body); font-weight: 700; font-size: 15px;
  border-radius: 999px; padding: 11px 22px; text-decoration: none; cursor: pointer;
  border: 1.5px solid transparent; transition: transform .15s ease, box-shadow .15s ease;
}
.btn-buy {
  background: linear-gradient(135deg, var(--pink-400), var(--lavender-400));
  color: #fff; box-shadow: 0 6px 18px rgba(255, 137, 172, .35);
}
.btn-buy:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(255, 137, 172, .45); }
.btn-play {
  background: var(--paper); color: var(--ink);
  border-color: var(--line);
}
.btn-play:hover { border-color: var(--lavender-300); background: var(--lavender-50); transform: translateY(-2px); }
.btn-ghost {
  background: transparent; color: var(--ink-soft);
  border-color: var(--line);
}
.btn-ghost:hover { color: var(--ink); border-color: var(--ink-soft); }
.btn-buy-top { font-size: 14px; padding: 8px 16px; }

/* ---------- hero (gallery) ---------- */
.apps-hero { padding: 64px 0 26px; text-align: center; }
.apps-hero .eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--paper); border: 1px solid var(--line); border-radius: 999px;
  font-size: 13px; font-weight: 600; color: var(--ink-soft);
  padding: 7px 16px; margin-bottom: 18px; box-shadow: var(--shadow);
}
.apps-hero h1 {
  font-family: var(--font-display); font-weight: 800;
  font-size: clamp(34px, 6vw, 56px); line-height: 1.12; letter-spacing: -.02em;
}
.apps-hero h1 .accent {
  background: linear-gradient(120deg, var(--pink-400), var(--lavender-400), var(--mint-400));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.apps-hero .lede {
  max-width: 620px; margin: 16px auto 0; color: var(--ink-soft); font-size: 17px;
}

/* ---------- gallery grid ---------- */
.apps-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px;
  padding: 34px 0 30px;
}
@media (max-width: 900px) { .apps-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .apps-grid { grid-template-columns: 1fr; } }

.app-card {
  background: var(--paper); border: 1.5px solid var(--line); border-radius: var(--radius);
  padding: 22px; display: flex; flex-direction: column; gap: 12px;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
  position: relative; overflow: hidden;
}
.app-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--lavender-200); }
.app-card[data-accent="pink"]:hover    { border-color: var(--pink-300); }
.app-card[data-accent="lavender"]:hover { border-color: var(--lavender-300); }
.app-card[data-accent="mint"]:hover    { border-color: var(--mint-300); }
.app-card[data-accent="peach"]:hover   { border-color: var(--peach-300); }

.app-card .thumb {
  height: 120px; border-radius: 13px;
  display: grid; place-items: center; font-size: 52px;
  border: 1px solid var(--line);
}
.app-card[data-accent="pink"]    .thumb { background: linear-gradient(135deg, var(--pink-50), var(--pink-100)); }
.app-card[data-accent="lavender"] .thumb { background: linear-gradient(135deg, var(--lavender-50), var(--lavender-100)); }
.app-card[data-accent="mint"]    .thumb { background: linear-gradient(135deg, var(--mint-50), var(--mint-100)); }
.app-card[data-accent="peach"]   .thumb { background: linear-gradient(135deg, var(--peach-50), var(--peach-100)); }

.app-card .flag {
  position: absolute; top: 14px; right: 14px;
  background: var(--ink); color: #fff; font-size: 11px; font-weight: 700;
  padding: 4px 10px; border-radius: 999px; letter-spacing: .04em;
}
.app-card h3 {
  font-family: var(--font-display); font-size: 21px; font-weight: 700; letter-spacing: -.01em;
}
.app-card .sub { font-size: 13.5px; font-weight: 600; color: var(--ink-soft); margin-top: -8px; }
.app-card p { font-size: 14px; color: var(--ink-soft); }
.app-card .tags { display: flex; flex-wrap: wrap; gap: 6px; }
.app-card .tags span {
  font-size: 11.5px; font-weight: 700; padding: 3px 10px; border-radius: 999px;
  background: var(--bg); border: 1px solid var(--line); color: var(--ink-soft);
}
.app-card .foot {
  margin-top: auto; display: flex; align-items: center; justify-content: space-between;
  gap: 10px; padding-top: 6px;
}
.app-card .price { font-family: var(--font-display); font-weight: 800; font-size: 22px; }
.app-card .price small { display: block; font-family: var(--font-body); font-size: 11px; font-weight: 600; color: var(--ink-soft); }
.app-card .actions { display: flex; gap: 8px; }
.app-card .actions .btn-play, .app-card .actions .btn-buy { padding: 9px 16px; font-size: 14px; }

/* ---------- how-it-works strip ---------- */
.how-strip {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
  padding: 8px 0 40px;
}
@media (max-width: 800px) { .how-strip { grid-template-columns: 1fr; } }
.how-strip .step {
  background: var(--paper); border: 1.5px solid var(--line); border-radius: var(--radius);
  padding: 18px 20px; display: flex; gap: 14px; align-items: flex-start;
}
.how-strip .num {
  flex: 0 0 34px; height: 34px; border-radius: 10px; display: grid; place-items: center;
  font-weight: 800; font-size: 15px; color: #fff;
  background: linear-gradient(135deg, var(--lavender-400), var(--pink-300));
}
.how-strip h4 { font-size: 15.5px; margin-bottom: 2px; }
.how-strip p { font-size: 13.5px; color: var(--ink-soft); }

/* ---------- footer ---------- */
.apps-footer {
  border-top: 1px solid var(--line); padding: 26px 0 40px; margin-top: 10px;
  color: var(--ink-soft); font-size: 13.5px;
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
}

/* ---------- buy page ---------- */
.buy-wrap { max-width: 760px; margin: 0 auto; padding: 46px 20px 70px; }
.buy-card {
  background: var(--paper); border: 1.5px solid var(--line); border-radius: 22px;
  box-shadow: var(--shadow); overflow: hidden;
}
.buy-head {
  padding: 26px 28px 20px; display: flex; gap: 16px; align-items: center;
  border-bottom: 1px solid var(--line);
}
.buy-head .thumb {
  width: 74px; height: 74px; border-radius: 16px; display: grid; place-items: center;
  font-size: 36px; border: 1px solid var(--line);
}
.buy-head h1 { font-family: var(--font-display); font-size: 26px; line-height: 1.2; }
.buy-head .sub { color: var(--ink-soft); font-size: 14px; font-weight: 600; }
.buy-body { padding: 24px 28px 28px; }
.buy-price-row {
  display: flex; align-items: baseline; gap: 12px; margin-bottom: 18px;
}
.buy-price-row .amount {
  font-family: var(--font-display); font-weight: 800; font-size: 42px; letter-spacing: -.02em;
}
.buy-price-row .per { color: var(--ink-soft); font-size: 14px; }

.buy-section { margin-top: 22px; }
.buy-section h3 {
  font-size: 15px; font-weight: 800; margin-bottom: 10px;
  display: flex; align-items: center; gap: 8px;
}
.buy-section .box {
  background: var(--bg); border: 1.5px solid var(--line); border-radius: 14px; padding: 16px 18px;
}
.buy-section ul { list-style: none; display: grid; gap: 7px; }
.buy-section li { font-size: 14.5px; display: flex; gap: 9px; align-items: flex-start; }
.buy-section li::before { content: '✓'; color: var(--mint-400); font-weight: 800; }

.bank-row { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 7px 0; font-size: 14.5px; }
.bank-row b { font-family: 'JetBrains Mono', ui-monospace, monospace; font-size: 15px; letter-spacing: .02em; }
.copy-btn {
  border: 1px solid var(--line); background: var(--paper); color: var(--ink-soft);
  font-size: 12px; font-weight: 700; border-radius: 8px; padding: 4px 10px; cursor: pointer;
}
.copy-btn:hover { color: var(--ink); border-color: var(--ink-soft); }

.qr-zone { display: flex; gap: 20px; align-items: center; flex-wrap: wrap; }
.qr-zone canvas, .qr-zone img { border-radius: 12px; }
.qr-note { font-size: 13px; color: var(--ink-soft); max-width: 280px; }

.notify-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 14px; }

.buy-back { margin-bottom: 18px; display: inline-block; }

/* ---------- demo topbar (หน้าแอปแต่ละตัว) ---------- */
.demo-topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 10px 16px; font-family: var(--font-body);
  background: rgba(255,251,247,.9); border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 99;
}
.demo-topbar .left { display: flex; align-items: center; gap: 10px; min-width: 0; }
.demo-topbar .back-link {
  text-decoration: none; font-size: 13.5px; font-weight: 700; color: var(--ink-soft);
  padding: 6px 12px; border-radius: 999px; white-space: nowrap;
}
.demo-topbar .back-link:hover { color: var(--ink); background: var(--lavender-50); }
.demo-topbar .app-name { font-weight: 800; font-size: 14px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.demo-topbar .btn-buy { font-size: 13.5px; padding: 8px 15px; }
@media (max-width: 480px) {
  .demo-topbar .app-name { display: none; }
  .demo-topbar .btn-buy { font-size: 12.5px; padding: 7px 12px; }
}