/* ═══ ชะตาแห่งเรือน — shared theme ═══ */
:root{
  --navy:#0E1A2B; --navy2:#16263D; --navy3:#1B2E49;
  --gold:#C9A25C; --gold-l:#E3C892; --gold-d:#9a762e;
  --cream:#F5EFE2; --paper:#FDFAF3; --ink:#2A2A33;
  --muted:#6b6152; --line:#e4d9c0;
  --ok:#41775c; --warn:#B06A4F;
  --radius:14px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Sarabun',sans-serif;color:var(--ink);background:var(--paper);line-height:1.8;-webkit-font-smoothing:antialiased}
.serif{font-family:'Trirong',serif}
img{max-width:100%}
a{color:var(--gold-d)}
.container{max-width:1040px;margin:0 auto;padding:0 20px}
.narrow{max-width:640px;margin:0 auto;padding:0 20px}

/* buttons */
.btn{display:inline-block;border:none;cursor:pointer;text-decoration:none;text-align:center;
  font-family:'Sarabun',sans-serif;font-size:1.05rem;font-weight:600;border-radius:999px;
  padding:14px 34px;transition:transform .15s ease, box-shadow .15s ease}
.btn-gold{background:linear-gradient(135deg,var(--gold),var(--gold-d));color:#fff;box-shadow:0 6px 18px rgba(154,118,46,.35)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(154,118,46,.45)}
.btn-ghost{background:transparent;color:var(--gold-l);border:1px solid var(--gold)}
.btn-ghost:hover{background:rgba(201,162,92,.12)}
.btn-line{background:transparent;color:var(--gold-d);border:1.5px solid var(--gold)}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}
.btn-sm{padding:9px 22px;font-size:.92rem}
.btn-block{display:block;width:100%}

/* ornaments */
.divider{display:flex;align-items:center;gap:10px;justify-content:center;margin:18px 0}
.divider .ln{height:1px;width:56px;background:linear-gradient(90deg,transparent,var(--gold))}
.divider .ln.r{background:linear-gradient(90deg,var(--gold),transparent)}
.divider .dm{width:7px;height:7px;background:var(--gold);transform:rotate(45deg)}
.kicker{font-size:.8rem;letter-spacing:.35em;color:var(--gold);text-transform:uppercase}

/* dark sections */
.dark{background:radial-gradient(ellipse at 50% 0%,var(--navy3) 0%,var(--navy) 60%);color:var(--cream)}
.dark .kicker{color:var(--gold-l)}

/* forms */
.field{margin-bottom:18px}
.field label{display:block;font-weight:600;font-size:.95rem;margin-bottom:6px;color:var(--ink)}
.field .hint{font-size:.8rem;color:var(--muted);font-weight:400;margin-top:4px;line-height:1.6}
.field input[type=text],.field input[type=email],.field input[type=tel],
.field select,.field textarea{
  width:100%;padding:12px 14px;font-family:'Sarabun',sans-serif;font-size:1rem;color:var(--ink);
  background:#fff;border:1.5px solid var(--line);border-radius:10px;outline:none;transition:border .15s}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--gold)}
.field.error input,.field.error select{border-color:var(--warn)}
.field .err-msg{display:none;color:var(--warn);font-size:.8rem;margin-top:4px}
.field.error .err-msg{display:block}
.row{display:flex;gap:12px}
.row>.field{flex:1}
.check{display:flex;gap:10px;align-items:flex-start;font-size:.92rem;cursor:pointer}
.check input{width:18px;height:18px;margin-top:4px;accent-color:var(--gold-d);flex:none}

/* cards */
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.notice{border-left:4px solid var(--gold);background:#fff;border-radius:0 10px 10px 0;
  padding:14px 16px;font-size:.92rem;color:var(--muted)}
.notice.ok{border-left-color:var(--ok)}
.notice.warn{border-left-color:var(--warn)}

/* step progress */
.steps{display:flex;justify-content:center;gap:0;margin:26px 0 30px}
.steps .st{display:flex;flex-direction:column;align-items:center;width:64px;position:relative;font-size:.68rem;color:#b3a480}
.steps .st .dot{width:30px;height:30px;border-radius:50%;border:2px solid var(--line);background:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:600;color:#b3a480;margin-bottom:5px;z-index:1}
.steps .st:not(:first-child)::before{content:"";position:absolute;top:15px;right:50%;width:100%;height:2px;background:var(--line)}
.steps .st.done .dot,.steps .st.now .dot{border-color:var(--gold);background:var(--gold);color:#fff}
.steps .st.done:not(:first-child)::before,.steps .st.now:not(:first-child)::before{background:var(--gold)}
.steps .st.now{color:var(--gold-d);font-weight:600}

/* misc */
.badge{display:inline-block;padding:3px 12px;border-radius:999px;font-size:.75rem;font-weight:600}
.badge.gold{background:var(--gold);color:#fff}
.badge.gray{background:#EDE4CF;color:var(--muted)}
.badge.green{background:var(--ok);color:#fff}
.badge.red{background:var(--warn);color:#fff}
.center{text-align:center}
.mt-1{margin-top:8px}.mt-2{margin-top:16px}.mt-3{margin-top:24px}.mt-4{margin-top:36px}
.hidden{display:none!important}
.spin{display:inline-block;width:18px;height:18px;border:2.5px solid rgba(255,255,255,.4);
  border-top-color:#fff;border-radius:50%;animation:sp 0.8s linear infinite;vertical-align:middle}
@keyframes sp{to{transform:rotate(360deg)}}

@media(max-width:560px){
  .row{flex-direction:column;gap:0}
  .btn{width:100%}
  .steps .st{width:52px}
}