:root { --teal-dark: #1d4d3b; --teal: #2e7d5b; --ok-bg: #e8f3ec; --line: #d8ddd8; --muted: #5a6b60; }
* { box-sizing: border-box; }
body { margin: 0; font-family: Georgia, "Times New Roman", serif; color: #222; background: #fdfcf7; line-height: 1.55; }
.site-header { background: var(--teal-dark); color: #fff; padding: 1.4rem 1rem; text-align: center; }
.site-header h1 { margin: 0; font-size: 1.9rem; }
.site-header .tagline { margin: 0.3rem 0 0; opacity: 0.9; }
main { max-width: 880px; margin: 0 auto; padding: 1rem; }
.hero h2 { font-size: 1.8rem; color: var(--teal-dark); margin: 0.6rem 0; }
.lead { font-size: 1.1rem; }
.btn { display: inline-block; background: var(--teal); color: #fff; text-decoration: none; border: none; border-radius: 10px; padding: 0.7rem 1.2rem; font-size: 1rem; font-weight: 600; cursor: pointer; }
.btn:hover { background: var(--teal-dark); }
.btn.big { font-size: 1.15rem; padding: 0.9rem 1.5rem; }
.btn.secondary { background: #fff; color: var(--teal-dark); border: 2px solid var(--teal-dark); }
.card { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 1.2rem; margin: 1rem 0; }
.free-card { background: var(--ok-bg); }
.flag { display: inline-block; background: var(--teal-dark); color: #fff; border-radius: 999px; padding: 0.2rem 0.8rem; font-size: 0.9rem; font-weight: 700; }
h3 { color: var(--teal-dark); margin-top: 0.4rem; }
.product-grid { display: grid; grid-template-columns: 1fr; gap: 1rem; }
@media (min-width: 700px) { .product-grid { grid-template-columns: 1fr 1fr; } }
.email-form input[type="email"] { width: 100%; max-width: 340px; font-size: 1rem; padding: 0.6rem 0.7rem; border: 1px solid var(--line); border-radius: 8px; margin: 0.4rem 0; }
.small { font-size: 0.9rem; color: var(--muted); }
.site-footer { text-align: center; color: var(--muted); padding: 1.5rem 1rem; font-size: 0.95rem; }

/* ---- Visual polish, Nov 9 2026: warm Thai identity, shared across the suite ---- */
:root {
 --teal: #0d5c4d; --gold: #c9971c; --gold-deep: #a87e12;
 --cream: #fbf6ec; --bg: #faf8f4; --card: #ffffff; --text: #2b2b2b;
 --shadow: 0 6px 18px rgba(9, 63, 53, 0.10);
 --shadow-lg: 0 10px 28px rgba(9, 63, 53, 0.15);
}
body { background: linear-gradient(180deg, #fdfaf3 0, var(--bg) 240px); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; }
.site-header {
 background: linear-gradient(135deg, #07382d 0%, var(--teal) 55%, #14705c 100%);
 border-bottom: 4px solid var(--gold);
 box-shadow: 0 4px 16px rgba(9, 63, 53, 0.25);
}
h2 { position: relative; padding-bottom: 0.45rem; }
h2::after {
 content: ""; display: block; width: 56px; height: 4px;
 background: linear-gradient(90deg, var(--gold), #e3b94a);
 border-radius: 2px; margin-top: 0.35rem;
}
.hero h2::after { margin-left: auto; margin-right: auto; }
.eyebrow {
 font-size: 0.8rem; font-weight: 700; letter-spacing: 0.14em;
 text-transform: uppercase; color: var(--gold-deep); margin: 0 0 0.3rem;
}
.hero {
 background: linear-gradient(180deg, #fff8e6, #fdfaf3);
 border: 1px solid #f0e2bd; border-radius: 20px;
 padding: 1.6rem 1.3rem; box-shadow: var(--shadow); margin: 1rem 0; text-align: center;
}
.hero .lead { text-align: left; }
.card { border-radius: 16px; box-shadow: var(--shadow); border-color: #eadfc8; }
.product-grid .card { transition: transform 0.12s ease, box-shadow 0.12s ease, border-color 0.12s ease; }
.product-grid .card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); border-color: var(--gold); }
.free-card { background: linear-gradient(180deg, #fdf3d0, var(--ok-bg)); border: 1px solid #e3c96a; }
.btn {
 background: linear-gradient(180deg, #12836b, var(--teal));
 box-shadow: 0 3px 10px rgba(13, 92, 77, 0.35);
 border-radius: 12px; transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 6px 14px rgba(13, 92, 77, 0.4); }
.btn:active { transform: translateY(0); }
.btn.secondary { background: #fff; box-shadow: none; }
.email-form input[type="email"] { border: 1.5px solid #d8cfae; border-radius: 12px; }
input:focus { outline: 3px solid rgba(201, 151, 28, 0.45); border-color: var(--teal); }
.flag { box-shadow: 0 1px 4px rgba(0, 0, 0, 0.12); }
.site-footer { border-top: 3px solid var(--gold); }

/* Thai flag banner, Nov 9 2026. Thai flag colours and proportions: red 1, white 1,
   dark blue 2, white 1, red 1. Pure CSS, no image. */
.thai-flag {
 height: 12px;
 background: linear-gradient(to bottom,
  #A51931 0%, #A51931 16.66%,
  #F4F5F8 16.66%, #F4F5F8 33.33%,
  #2D2A4A 33.33%, #2D2A4A 66.66%,
  #F4F5F8 66.66%, #F4F5F8 83.33%,
  #A51931 83.33%, #A51931 100%);
}
.site-header h1 { font-size: clamp(1.4rem, 5vw, 1.9rem); }
.site-header .thai-word {
 color: #f2c14e;
 font-size: 1.15em;
 font-weight: 700;
 letter-spacing: 0.02em;
 white-space: nowrap;
}

/* Hero banner image, Nov 9 2026: generated Thai hero art, framed like the cover art. */
.hero-img {
 display: block; width: 100%; max-width: 880px; height: auto;
 margin: 0 auto 1rem; border-radius: 16px;
 box-shadow: var(--shadow-lg, 0 10px 28px rgba(9, 63, 53, 0.15));
 border: 3px solid #fff; outline: 1px solid #eadfc8;
}

/* Gold top border on cards, Nov 9 2026. */
.card { border-top: 4px solid var(--gold); }