/* ===== U-Skin — landing.css ===== */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'IBM Plex Sans Thai','IBM Plex Sans',sans-serif;
  color: #0f2440;
  background: #ffffff;
  -webkit-font-smoothing: antialiased;
}
img { display: block; }
.container { max-width: 1200px; margin: 0 auto; padding-left: 24px; padding-right: 24px; }

/* keyframes */
@keyframes floaty { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-14px); } }
@keyframes fadeUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }

/* dot */
.dot { width: 9px; height: 9px; border-radius: 50%; background: #fff; display: inline-block; }
.dot--teal { background: #5eead4; width: 7px; height: 7px; }

/* buttons */
.btn-line { display: inline-flex; align-items: center; gap: 10px; background: #06C755; color: #fff; text-decoration: none; font-weight: 600; border-radius: 999px; box-shadow: 0 6px 18px rgba(6,199,85,0.35); }
.btn-line--sm { font-size: 15px; padding: 10px 20px; gap: 8px; }
.btn-line--lg { font-size: 17px; padding: 16px 30px; box-shadow: 0 12px 30px rgba(6,199,85,0.4); }
.btn-line--xl { font-size: 18px; padding: 18px 40px; font-weight: 700; gap: 12px; box-shadow: 0 12px 30px rgba(6,199,85,0.4); }
.btn-ghost { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.3); color: #fff; text-decoration: none; font-weight: 600; font-size: 17px; padding: 16px 30px; border-radius: 999px; }

/* header */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,0.85); backdrop-filter: blur(12px); border-bottom: 1px solid #e4edf7; }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 12px; padding-bottom: 12px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.brand-logo { width: 44px; height: 44px; border-radius: 10px; object-fit: cover; box-shadow: 0 4px 14px rgba(22,56,107,0.25); }
.brand-text { display: flex; flex-direction: column; line-height: 1.05; }
.brand-name { font-family: 'IBM Plex Sans',sans-serif; font-weight: 700; font-size: 19px; letter-spacing: 1px; color: #16386b; }
.brand-name--light { color: #fff; }
.brand-sub { font-family: 'IBM Plex Sans',sans-serif; font-weight: 500; font-size: 9px; letter-spacing: 2.5px; color: #5b7fae; }
.brand-sub--light { color: #7f9fc9; }
.nav { display: flex; align-items: center; gap: 30px; }
.navlink { text-decoration: none; color: #3a5679; font-weight: 500; font-size: 15px; }
.navlink:hover { color: #1e4b8f; }

/* hero */
.hero { position: relative; background: linear-gradient(160deg,#16386b 0%,#1e4b8f 55%,#2b6ac2 100%); color: #fff; overflow: hidden; }
.hero-orb { position: absolute; border-radius: 50%; }
.hero-orb--1 { top: -120px; right: -100px; width: 420px; height: 420px; background: radial-gradient(circle,rgba(255,255,255,0.14),transparent 70%); animation: floaty 8s ease-in-out infinite; }
.hero-orb--2 { bottom: -160px; left: -120px; width: 380px; height: 380px; background: radial-gradient(circle,rgba(90,180,255,0.22),transparent 70%); }
.hero-grid { position: relative; padding-top: 84px; padding-bottom: 96px; display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center; }
.hero-copy { animation: fadeUp 0.7s ease both; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.25); padding: 7px 16px; border-radius: 999px; font-size: 13px; font-weight: 500; margin-bottom: 26px; }
.hero-h1 { font-size: 52px; line-height: 1.12; font-weight: 700; margin: 0 0 22px; letter-spacing: -0.5px; }
.hero-h1 .accent { color: #7fc4ff; }
.hero-lead { font-size: 18px; line-height: 1.7; color: #cfe0f5; margin: 0 0 36px; max-width: 520px; }
.hero-cta { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 40px; margin-top: 44px; flex-wrap: wrap; }
.stat-num { font-size: 30px; font-weight: 700; font-family: 'IBM Plex Sans',sans-serif; }
.stat-label { font-size: 13px; color: #a9c4e6; }
.hero-media { position: relative; animation: fadeUp 0.9s ease both; }
.hero-media-frame { background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.2); border-radius: 28px; padding: 20px; backdrop-filter: blur(6px); }
.hero-media-box { height: 420px; border-radius: 18px; }
.hero-media-mark { width: 70px; height: 70px; border-radius: 18px; background: #fff; box-shadow: 0 8px 24px rgba(22,56,107,0.15); display: flex; align-items: center; justify-content: center; font-family: 'IBM Plex Sans',sans-serif; font-weight: 700; font-size: 30px; color: #16386b; }
.hero-media img.filled { width: 100%; height: 100%; object-fit: cover; border-radius: 18px; }
.hero-curve { position: relative; background: #fff; height: 44px; border-radius: 44px 44px 0 0; margin-top: -24px; }

/* placeholder */
.ph { background: repeating-linear-gradient(135deg,#dbe8f7,#dbe8f7 14px,#eef4fb 14px,#eef4fb 28px); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px; color: #5b7fae; }
.ph-mono { font-family: 'IBM Plex Mono',monospace; font-size: 12px; letter-spacing: 1px; }
.ph-note { font-size: 12px; }
.ph-foot { text-align: center; margin-top: 32px; font-size: 14px; color: #8aa4c4; font-family: 'IBM Plex Mono',monospace; }

/* section heads */
.sec-pad { padding-top: 84px; padding-bottom: 84px; }
.sec-head { text-align: center; margin-bottom: 36px; }
.sec-head--light { margin-bottom: 48px; }
.eyebrow { display: inline-block; font-family: 'IBM Plex Sans',sans-serif; font-weight: 600; font-size: 13px; letter-spacing: 2px; color: #2b6ac2; margin-bottom: 12px; }
.eyebrow--light { color: #7fc4ff; }
.sec-h2 { font-size: 38px; line-height: 1.2; font-weight: 700; color: #16386b; margin: 0 0 12px; letter-spacing: -0.3px; }
.sec-h2--light { color: #fff; }
.sec-sub { font-size: 16px; color: #5b7fae; margin: 0; }
.sec-sub--light { color: #cfe0f5; }
.body-p { font-size: 16px; line-height: 1.8; color: #3a5679; margin: 0 0 18px; }

/* grids */
.grid-4 { display: grid; grid-template-columns: repeat(4,1fr); gap: 22px; }
.grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }

/* why */
.why { padding-top: 20px; padding-bottom: 40px; }
.why .grid-4 { gap: 20px; }
.feature { background: #f5f9fe; border: 1px solid #e4edf7; border-radius: 18px; padding: 26px 22px; }
.feature-icon { width: 46px; height: 46px; border-radius: 12px; background: #e6f0fb; color: #1e4b8f; display: flex; align-items: center; justify-content: center; font-size: 22px; font-weight: 700; margin-bottom: 16px; }
.feature-title { font-weight: 600; font-size: 17px; color: #16386b; margin-bottom: 7px; }
.feature-desc { font-size: 14px; line-height: 1.6; color: #5b7fae; }

/* about */
.about-wrap { background: #f5f9fe; border-top: 1px solid #e4edf7; border-bottom: 1px solid #e4edf7; }
.about-grid { padding-top: 80px; padding-bottom: 80px; display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 64px; align-items: center; }
.about-media { height: 400px; border-radius: 24px; border: 1px solid #e4edf7; overflow: hidden; }
.about-media img.filled { width: 100%; height: 100%; object-fit: cover; }
.about-checks { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 10px; }
.check { display: flex; gap: 12px; align-items: flex-start; font-size: 15px; color: #3a5679; line-height: 1.5; }
.tick { color: #06C755; font-weight: 700; font-size: 18px; }

/* show more */
.show-more-wrap { display: flex; justify-content: center; margin-top: 36px; }
.btn-more { font-family: inherit; cursor: pointer; border: 1px solid #1e4b8f; background: #fff; color: #1e4b8f; font-weight: 600; font-size: 15px; padding: 12px 32px; border-radius: 999px; transition: all .15s; }
.btn-more:hover { background: #1e4b8f; color: #fff; }

/* filters */
.filters { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 38px; }
.chip { font-family: inherit; cursor: pointer; border: 1px solid #d5e2f2; background: #fff; color: #3a5679; font-weight: 500; font-size: 14px; padding: 10px 20px; border-radius: 999px; transition: all .15s; }
.chip:hover { border-color: #1e4b8f; }
.chip.is-active { border-color: #1e4b8f; background: #1e4b8f; color: #fff; font-weight: 600; }

/* product card */
.product-card { border: 1px solid #e4edf7; border-radius: 18px; overflow: hidden; background: #fff; box-shadow: 0 2px 10px rgba(22,56,107,0.05); display: flex; flex-direction: column; }
.card-media { height: 170px; position: relative; }
.card-media .ph-mono { font-size: 11px; }
.card-media img.filled { width: 100%; height: 100%; object-fit: cover; }
.tag { position: absolute; top: 12px; left: 12px; font-size: 11px; font-weight: 600; padding: 5px 11px; border-radius: 999px; }
.card-body { padding: 18px 18px 20px; display: flex; flex-direction: column; flex: 1; }
.card-name { font-weight: 600; font-size: 16px; color: #16386b; line-height: 1.35; margin-bottom: 4px; }
.card-sub { font-size: 13px; color: #5b7fae; margin-bottom: 16px; }
.card-foot { margin-top: auto; display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.price { font-family: 'IBM Plex Sans',sans-serif; font-weight: 700; font-size: 16px; color: #1e4b8f; }
.btn-order { display: inline-flex; align-items: center; gap: 6px; background: #06C755; color: #fff; text-decoration: none; font-weight: 600; font-size: 13px; padding: 8px 14px; border-radius: 999px; }
.btn-order .dot { width: 7px; height: 7px; }

/* articles */
.articles-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin-bottom: 36px; flex-wrap: wrap; }
.article-card { text-align: left; cursor: pointer; font-family: inherit; border: 1px solid #e4edf7; border-radius: 18px; overflow: hidden; background: #fff; box-shadow: 0 2px 10px rgba(22,56,107,0.05); display: flex; flex-direction: column; padding: 0; transition: transform .15s, box-shadow .15s; }
.article-card:hover { transform: translateY(-3px); box-shadow: 0 10px 26px rgba(22,56,107,0.1); }
.article-media { height: 180px; position: relative; }
.article-media .ph-mono { font-size: 11px; }
.article-media img.filled { width: 100%; height: 100%; object-fit: cover; }
.article-body { padding: 20px 20px 22px; display: flex; flex-direction: column; flex: 1; }
.article-meta { font-size: 12px; color: #8aa4c4; margin-bottom: 9px; }
.article-title { font-weight: 600; font-size: 18px; color: #16386b; line-height: 1.35; margin-bottom: 10px; }
.article-excerpt { font-size: 14px; color: #5b7fae; line-height: 1.6; margin-bottom: 16px; }
.article-more { margin-top: auto; color: #1e4b8f; font-weight: 600; font-size: 14px; }

/* order */
.order { background: linear-gradient(160deg,#16386b,#1e4b8f); color: #fff; }
.order > .container { padding-top: 84px; padding-bottom: 84px; }
.steps { margin-bottom: 52px; }
.step { background: rgba(255,255,255,0.07); border: 1px solid rgba(255,255,255,0.16); border-radius: 20px; padding: 32px 28px; }
.step-n { width: 48px; height: 48px; border-radius: 12px; background: #06C755; color: #fff; display: flex; align-items: center; justify-content: center; font-family: 'IBM Plex Sans',sans-serif; font-weight: 700; font-size: 20px; margin-bottom: 20px; }
.step-title { font-weight: 600; font-size: 19px; margin-bottom: 8px; }
.step-desc { font-size: 15px; line-height: 1.65; color: #cfe0f5; }
.order-cta { display: flex; flex-direction: column; align-items: center; gap: 26px; background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.16); border-radius: 24px; padding: 48px 24px; text-align: center; }
.order-cta-top { display: flex; align-items: center; gap: 14px; }
.order-cta-badge { width: 56px; height: 56px; border-radius: 14px; background: #06C755; display: flex; align-items: center; justify-content: center; box-shadow: 0 8px 24px rgba(6,199,85,0.4); color: #fff; font-family: 'IBM Plex Sans',sans-serif; font-weight: 700; font-size: 22px; }
.order-cta-titles { text-align: left; }
.order-cta-small { font-size: 14px; color: #cfe0f5; }
.order-cta-big { font-size: 22px; font-weight: 700; }
.order-cta-note { font-size: 14px; color: #93b4d8; }

/* footer */
.footer { background: #0f2440; color: #cfe0f5; }
.footer-inner { padding-top: 56px; padding-bottom: 32px; display: flex; flex-direction: column; align-items: center; text-align: center; gap: 20px; }
.footer-desc { font-size: 14px; line-height: 1.7; color: #93aecd; max-width: 440px; margin: 0; }
.footer-bar { border-top: 1px solid rgba(255,255,255,0.1); }
.footer-bar .container { padding-top: 20px; padding-bottom: 20px; font-size: 13px; color: #6d88a8; text-align: center; }

/* reader overlay */
.reader { position: fixed; inset: 0; z-index: 100; background: #fff; overflow-y: auto; }
.reader-bar { position: sticky; top: 0; z-index: 2; background: rgba(255,255,255,0.9); backdrop-filter: blur(12px); border-bottom: 1px solid #e4edf7; }
.reader-bar-inner { padding-top: 14px; padding-bottom: 14px; display: flex; align-items: center; justify-content: space-between; max-width: 760px; }
.btn-back { cursor: pointer; font-family: inherit; border: 1px solid #d5e2f2; background: #fff; color: #1e4b8f; font-weight: 600; font-size: 14px; padding: 9px 18px; border-radius: 999px; }
.reader-body { max-width: 760px; margin: 0 auto; padding: 40px 24px 90px; }
.reader-body .tag { position: static; display: inline-block; background: #e6f0fb; color: #1e4b8f; margin-bottom: 20px; }
.reader-h1 { font-size: 38px; line-height: 1.25; font-weight: 700; color: #0f2440; margin: 0 0 16px; letter-spacing: -0.3px; }
.reader-meta { font-size: 14px; color: #8aa4c4; margin-bottom: 28px; }
.reader-cover { height: 340px; border-radius: 18px; margin-bottom: 36px; overflow: hidden; }
.reader-cover img.filled { width: 100%; height: 100%; object-fit: cover; }
.reader-h2 { font-weight: 700; font-size: 22px; color: #16386b; line-height: 1.35; margin: 32px 0 12px; }
.reader-p { font-size: 17px; line-height: 1.85; color: #374d68; margin: 0 0 18px; }
.reader-endcta { margin-top: 44px; padding: 28px; background: #f5f9fe; border: 1px solid #e4edf7; border-radius: 18px; text-align: center; }
.reader-endcta-title { font-weight: 600; font-size: 18px; color: #16386b; margin-bottom: 8px; }
.reader-endcta-sub { font-size: 14px; color: #5b7fae; margin-bottom: 18px; }

/* responsive */
@media (max-width: 900px) {
  .navlink { display: none; }
  .hero-grid { grid-template-columns: 1fr; gap: 40px; padding-top: 56px; padding-bottom: 64px; }
  .about-grid { grid-template-columns: 1fr; gap: 36px; padding-top: 56px; padding-bottom: 56px; }
  .grid-4 { grid-template-columns: repeat(2,1fr); }
  .grid-3 { grid-template-columns: 1fr; }
  .hero-h1 { font-size: 38px; }
  .sec-h2 { font-size: 30px; }
  .sec-pad { padding-top: 56px; padding-bottom: 56px; }
  .hero-media { order: -1; }
  .hero-media-box { height: 260px; }
  .reader-h1 { font-size: 30px; }
}
@media (max-width: 560px) {
  .grid-4 { grid-template-columns: 1fr; }
  .hero-h1 { font-size: 31px; }
  .hero-stats { gap: 22px; }
  .about-checks { grid-template-columns: 1fr; }
}