:root {
  --bg: #faf7f2;
  --ink: #2a2420;
  --muted: #7a6f64;
  --line: #e7ddcf;
  --card: #fffdf9;
  --brand: #b5360f;     /* Nin Jiom warm red */
  --brand-dk: #8d2a0b;
  --gold: #c79a3a;
  --ok: #2e7d4f;
  --bad: #b23b3b;
  --radius: 14px;
  --shadow: 0 6px 24px rgba(60, 40, 20, .08);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.6 -apple-system, "Segoe UI", "PingFang HK", "Microsoft JhengHei", system-ui, sans-serif;
}
h1, h2 { line-height: 1.2; letter-spacing: -.01em; }
a { color: var(--brand); }

.topbar {
  position: sticky; top: 0; z-index: 5; display: flex; align-items: center;
  justify-content: space-between; padding: 12px 20px; background: rgba(250,247,242,.9);
  backdrop-filter: blur(8px); border-bottom: 1px solid var(--line);
}
.brand { font-weight: 800; letter-spacing: .08em; }
.brand em { color: var(--brand); font-style: normal; }
.lang { display: flex; gap: 4px; }
.lang-btn {
  border: 1px solid var(--line); background: var(--card); color: var(--muted);
  border-radius: 999px; padding: 4px 12px; font-size: 13px; cursor: pointer;
}
.lang-btn.is-active { background: var(--brand); color: #fff; border-color: var(--brand); }

/* ① Banner — swap background-image for the campaign KV artwork (public/banner.jpg) */
.banner {
  position: relative; text-align: center; color: #fff;
  background: linear-gradient(180deg, rgba(141,42,11,.78), rgba(181,54,15,.86)), #b5360f center/cover no-repeat;
  background-image: linear-gradient(180deg, rgba(141,42,11,.55), rgba(141,42,11,.75)), url('/banner.jpg');
}
.banner-inner { max-width: 760px; margin: 0 auto; padding: 72px 20px 64px; }
.banner-kicker { color: #fbe6c8; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; font-size: 13px; margin: 0 0 10px; }
.banner-title { font-size: clamp(34px, 7vw, 58px); margin: 0 0 16px; text-shadow: 0 2px 12px rgba(0,0,0,.2); }
.banner-deadline { font-size: 15px; margin: 0; opacity: .95; }
.banner-deadline strong { color: #fff; }

/* ② Landing — design layout + CTA */
.landing { max-width: 720px; margin: 0 auto; padding: 8px 20px 40px; }
.design { padding: 40px 0 8px; }
.design h2 { font-size: 26px; margin: 0 0 22px; }
.design-art { width: 100%; border-radius: var(--radius); border: 1px solid var(--line); margin-bottom: 26px; display: block; }
.cta-row { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; padding: 12px 0 8px; }

.steps { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.steps li { display: flex; gap: 14px; align-items: flex-start; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; }
.step-n { flex: 0 0 28px; height: 28px; border-radius: 50%; background: var(--brand); color: #fff; display: grid; place-items: center; font-weight: 700; font-size: 14px; }
.note { margin-top: 18px; padding: 12px 16px; background: #fff6ef; border: 1px solid #f0d9c6; border-radius: var(--radius); color: var(--brand-dk); font-size: 14px; }

form { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
label { display: flex; flex-direction: column; gap: 6px; font-size: 14px; font-weight: 600; }
.col-2 { grid-column: 1 / -1; }
input[type=text], input[type=email], input[type=date], input[name] {
  font: inherit; padding: 11px 12px; border: 1px solid var(--line); border-radius: 10px; background: #fff; color: var(--ink);
}
input:focus { outline: 2px solid var(--brand); outline-offset: 1px; border-color: var(--brand); }
.file-field { margin-top: 16px; }
.hint { font-weight: 400; color: var(--muted); font-size: 12.5px; }
.file-status { margin: 10px 0 0; font-size: 13px; font-weight: 600; color: var(--ok); }
.consent { flex-direction: row; align-items: flex-start; gap: 10px; margin-top: 18px; font-weight: 400; font-size: 14px; }
.consent input { margin-top: 3px; }

.progress { margin-top: 16px; }
.progress-bar { height: 8px; background: var(--line); border-radius: 999px; overflow: hidden; }
.progress-bar i { display: block; height: 100%; width: 0; background: var(--brand); transition: width .2s; }

.btn { display: inline-block; text-decoration: none; text-align: center; font: inherit; font-weight: 700; border: 0; border-radius: 999px; padding: 13px 24px; cursor: pointer; }
.btn-primary { background: var(--brand); color: #fff; margin-top: 20px; }
.btn-primary:hover { background: var(--brand-dk); }
.btn-primary:disabled { opacity: .6; cursor: progress; }
.btn-lg { padding: 15px 36px; font-size: 17px; margin-top: 0; }
.btn-ghost { background: var(--card); color: var(--brand); border: 1.5px solid var(--brand); }
.btn-ghost:hover { background: #fff3ec; }

/* Modals (entry / Q&A / T&C) */
dialog.sheet {
  border: 0; border-radius: 18px; padding: 24px; width: min(680px, calc(100% - 28px));
  max-height: 90vh; box-shadow: 0 24px 70px rgba(40,25,12,.28); color: var(--ink);
}
dialog.sheet::backdrop { background: rgba(40,25,12,.45); backdrop-filter: blur(2px); }
dialog.sheet h2 { font-size: 23px; margin: 0 0 18px; padding-right: 28px; }
.sheet-close { position: absolute; top: 14px; right: 16px; border: 0; background: transparent; font-size: 26px; line-height: 1; color: var(--muted); cursor: pointer; }
dialog.sheet form { box-shadow: none; border: 0; padding: 0; background: transparent; }
.qa-body details:first-child { margin-top: 0; }
.tnc-body { font-size: 14px; color: var(--muted); }
.tnc-body li { margin-bottom: 8px; }

.success-panel { text-align: center; padding: 16px 8px 8px; }
.success-check { width: 60px; height: 60px; margin: 0 auto 14px; border-radius: 50%; background: #e3f1e8; color: var(--ok); font-size: 34px; display: grid; place-items: center; }
.success-panel h3 { margin: 0 0 8px; font-size: 22px; }
.success-panel p { color: var(--muted); margin: 0 auto 16px; max-width: 380px; }
.ref-box { background: #fff6ef; border: 1px dashed #e7c3a8; border-radius: 12px; padding: 14px; font-size: 13px; color: var(--muted); }
.ref-box strong { font-size: 26px; letter-spacing: .06em; color: var(--brand-dk); }

.form-msg { margin: 14px 0 0; font-size: 14px; font-weight: 600; }
.form-msg.ok { color: var(--ok); }
.form-msg.err { color: var(--bad); }

.tnc-body { font-size: 14px; color: var(--muted); }
.tnc-body li { margin-bottom: 8px; }
details { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 16px; margin-bottom: 10px; }
summary { font-weight: 600; cursor: pointer; }
details p { color: var(--muted); font-size: 14px; margin: 10px 0 2px; }

.foot { border-top: 1px solid var(--line); text-align: center; padding: 24px; color: var(--muted); font-size: 13px; }

@media (max-width: 560px) {
  .grid { grid-template-columns: 1fr; }
}