/* ===========================================================
   ระบบจองห้องพัก — Design Tokens
   Theme: บ่ายแก่ๆ ริมสระ (late-afternoon poolside)
   =========================================================== */
:root{
  --pool-deep:   #0B4F4A;
  --pool-mid:    #1C7C74;
  --pool-light:  #6FC8BE;
  --pool-glow:   #A9E4DC;
  --sand:        #EFE3C8;
  --sand-dark:   #DFCBA0;
  --clay:        #B5592E;
  --clay-dark:   #93441F;
  --navy-ink:    #0B2027;
  --cream:       #FBF8F2;
  --white:       #FFFFFF;
  --status-ok:      #2E8B6B;
  --status-pending: #C1892E;
  --status-cancel:  #A34A4A;

  --font-display: 'Kanit', sans-serif;
  --font-body: 'Sarabun', sans-serif;

  --radius-lg: 22px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-soft: 0 10px 30px rgba(11,40,38,0.12);
  --shadow-deep: 0 20px 50px rgba(11,40,38,0.22);
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  font-family: var(--font-body);
  color: var(--navy-ink);
  background: var(--cream);
  line-height:1.6;
}
h1,h2,h3,h4{ font-family: var(--font-display); margin:0 0 .4em; letter-spacing:.2px; }
a{ color:inherit; }
img{ max-width:100%; display:block; }
button{ font-family: var(--font-body); cursor:pointer; }
:focus-visible{ outline:3px solid var(--pool-light); outline-offset:2px; }

.container{ max-width:1180px; margin:0 auto; padding:0 24px; }

/* ---------- Top nav ---------- */
.site-nav{
  position:sticky; top:0; z-index:50;
  background: rgba(11,79,74,0.94);
  backdrop-filter: blur(6px);
  color: var(--cream);
}
.site-nav .container{ display:flex; align-items:center; justify-content:space-between; padding:14px 24px; }
.brand{ display:flex; align-items:center; gap:10px; font-family:var(--font-display); font-weight:600; font-size:1.25rem; text-decoration:none; color:var(--cream); }
.brand-mark{ width:34px; height:34px; border-radius:50%; background: radial-gradient(circle at 35% 30%, var(--pool-glow), var(--pool-mid) 70%); flex-shrink:0; }
.nav-links{ display:flex; gap:26px; list-style:none; margin:0; padding:0; font-size:.95rem; }
.nav-links a{ text-decoration:none; opacity:.88; transition:opacity .2s; }
.nav-links a:hover{ opacity:1; }
.nav-cta{ background:var(--clay); color:var(--cream); padding:9px 18px; border-radius:999px; text-decoration:none; font-weight:600; font-size:.9rem; transition: transform .15s, background .2s; }
.nav-cta:hover{ background:var(--clay-dark); transform:translateY(-1px); }

/* ---------- Hero ---------- */
.hero{
  position:relative; overflow:hidden;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(111,200,190,0.35), transparent 60%),
    linear-gradient(180deg, var(--pool-deep) 0%, #0E3F3B 60%, var(--navy-ink) 100%);
  color: var(--cream);
  padding: 90px 0 60px;
}
.hero .container{ display:grid; grid-template-columns: 1.1fr .9fr; gap:40px; align-items:center; }
.eyebrow{ text-transform:uppercase; letter-spacing:3px; font-size:.75rem; color:var(--pool-glow); font-weight:600; }
.hero h1{ font-size: clamp(2.2rem, 4.2vw, 3.4rem); font-weight:600; margin-top:10px; }
.hero p.lead{ font-size:1.08rem; max-width:46ch; opacity:.9; margin-bottom:26px; }
.hero-ctas{ display:flex; gap:14px; flex-wrap:wrap; }
.btn{
  display:inline-flex; align-items:center; gap:8px;
  padding:13px 26px; border-radius:999px; border:none;
  font-weight:600; font-size:.98rem; text-decoration:none;
  transition: transform .15s ease, box-shadow .2s ease, background .2s;
}
.btn-primary{ background:var(--clay); color:var(--cream); }
.btn-primary:hover{ background:var(--clay-dark); transform:translateY(-2px); box-shadow:0 10px 24px rgba(181,89,46,.35); }
.btn-outline{ background:transparent; color:var(--cream); border:1.5px solid rgba(251,248,242,.5); }
.btn-outline:hover{ border-color:var(--cream); background:rgba(255,255,255,.08); }

/* Ripple signature visual in hero */
.ripple-wrap{ position:relative; height:280px; }
.ripple{
  position:absolute; border-radius:50%;
  border:1.5px solid rgba(169,228,220,.55);
  animation: ripple-out 4.5s ease-out infinite;
}
.ripple.r2{ animation-delay:1.5s; }
.ripple.r3{ animation-delay:3s; }
@keyframes ripple-out{
  0%{ width:20px; height:20px; opacity:.9; top:50%; left:50%; transform:translate(-50%,-50%); }
  100%{ width:260px; height:260px; opacity:0; top:50%; left:50%; transform:translate(-50%,-50%); }
}
.ripple-center{
  position:absolute; top:50%; left:50%; transform:translate(-50%,-50%);
  width:100px; height:100px; border-radius:50%;
  background: radial-gradient(circle at 35% 30%, var(--pool-glow), var(--pool-mid) 75%);
  box-shadow: var(--shadow-deep);
}
@media (prefers-reduced-motion: reduce){ .ripple{ animation:none; opacity:.3; } }

/* Wave divider */
.wave-divider{ display:block; width:100%; height:64px; margin-top:-2px; }

/* ---------- Sections ---------- */
.section{ padding: 64px 0; }
.section-sand{ background: var(--sand); }
.section-header{ max-width:640px; margin-bottom:36px; }
.section-header .eyebrow{ color:var(--pool-mid); }
.section-header h2{ font-size:2rem; color:var(--navy-ink); }
.section-header p{ color:#4a5a58; }

/* ---------- Rooms ---------- */
.room-grid{ display:grid; grid-template-columns:repeat(auto-fit,minmax(260px,1fr)); gap:24px; }
.room-card{
  background:var(--white); border-radius:var(--radius-lg); overflow:hidden;
  box-shadow: var(--shadow-soft); transition: transform .2s ease, box-shadow .2s ease;
}
.room-card:hover{ transform:translateY(-6px); box-shadow: var(--shadow-deep); }
.room-photo{ height:170px; background: linear-gradient(135deg, var(--pool-light), var(--pool-deep)); position:relative; }
.room-photo::after{
  content:""; position:absolute; inset:0;
  background-image: radial-gradient(circle at 20% 80%, rgba(255,255,255,.25) 0, transparent 40%);
}
.room-body{ padding:18px 20px 20px; }
.room-body h3{ font-size:1.15rem; margin-bottom:6px; }
.room-body .price{ color:var(--clay); font-weight:700; font-family:var(--font-display); font-size:1.1rem; }
.room-body .desc{ font-size:.92rem; color:#516260; margin:8px 0 14px; }
.room-meta{ display:flex; gap:14px; font-size:.85rem; color:#516260; margin-bottom:14px; }

/* ---------- Calendar section ---------- */
.calendar-card{ background:var(--white); border-radius:var(--radius-lg); box-shadow:var(--shadow-soft); padding:22px; }
.legend{ display:flex; gap:18px; flex-wrap:wrap; margin-bottom:16px; font-size:.85rem; color:#516260; }
.legend span{ display:inline-flex; align-items:center; gap:6px; }
.dot{ width:11px; height:11px; border-radius:50%; display:inline-block; }
.dot-ok{ background:var(--status-ok); }
.dot-pending{ background:var(--status-pending); }
.dot-cancel{ background:var(--status-cancel); }

#calendar .fc{ font-family: var(--font-body); }
#calendar .fc-toolbar-title{ font-family:var(--font-display); color:var(--navy-ink); font-size:1.3rem; }
#calendar .fc-button{
  background:var(--pool-mid) !important; border:none !important;
  box-shadow:none !important; text-transform:capitalize;
}
#calendar .fc-button:hover{ background:var(--pool-deep) !important; }
#calendar .fc-button-active{ background:var(--clay) !important; }
#calendar .fc-daygrid-day:hover .fc-daygrid-day-frame{
  box-shadow: inset 0 0 0 2px var(--pool-light);
  border-radius:8px;
}
#calendar .fc-event{ border:none; border-radius:6px; padding:1px 4px; cursor:pointer; }
#calendar .fc-day-today{ background: rgba(111,200,190,.14) !important; }

/* ---------- Modal ---------- */
.modal-backdrop{
  position:fixed; inset:0; background:rgba(11,32,39,.55);
  display:none; align-items:center; justify-content:center; z-index:200; padding:20px;
}
.modal-backdrop.open{ display:flex; }
.modal{
  background:var(--white); border-radius:var(--radius-lg); max-width:480px; width:100%;
  padding:28px; box-shadow:var(--shadow-deep); position:relative; max-height:88vh; overflow-y:auto;
}
.modal h3{ color:var(--navy-ink); font-size:1.3rem; }
.modal-close{
  position:absolute; top:16px; right:16px; background:var(--sand); border:none;
  width:32px; height:32px; border-radius:50%; font-size:1rem; color:var(--navy-ink);
}
.status-badge{ display:inline-block; padding:4px 12px; border-radius:999px; font-size:.8rem; font-weight:600; color:#fff; }
.status-confirmed{ background:var(--status-ok); }
.status-pending{ background:var(--status-pending); }
.status-cancelled{ background:var(--status-cancel); }

.detail-row{ display:flex; justify-content:space-between; padding:8px 0; border-bottom:1px dashed #e3ddce; font-size:.94rem; }
.detail-row span:first-child{ color:#7a8a87; }

/* ---------- Forms ---------- */
.form-grid{ display:grid; gap:14px; }
.form-row{ display:grid; gap:6px; }
.form-row label{ font-size:.85rem; font-weight:600; color:#3d4d4b; }
.form-row input, .form-row select, .form-row textarea{
  padding:10px 12px; border:1.5px solid #dcd4bd; border-radius:var(--radius-sm);
  font-family:var(--font-body); font-size:.95rem; background:var(--cream);
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus{ border-color:var(--pool-mid); background:var(--white); }
.two-col{ display:grid; grid-template-columns:1fr 1fr; gap:14px; }
@media (max-width:520px){ .two-col{ grid-template-columns:1fr; } }

.alert{ padding:10px 14px; border-radius:var(--radius-sm); font-size:.88rem; margin-bottom:12px; }
.alert-error{ background:#f8dede; color:#7a2626; }
.alert-ok{ background:#d9f0e4; color:#1f5c40; }
.alert-info{ background:#e4f2f0; color:#0B4F4A; }

/* ---------- Footer ---------- */
.site-footer{ background:var(--navy-ink); color:var(--cream); padding:40px 0 26px; margin-top:40px; }
.site-footer .container{ display:flex; justify-content:space-between; flex-wrap:wrap; gap:20px; }
.site-footer small{ opacity:.6; display:block; margin-top:18px; }
.footer-links{ list-style:none; padding:0; display:flex; gap:18px; font-size:.9rem; opacity:.85; }
.footer-links a{ text-decoration:none; }

@media (max-width: 820px){
  .hero .container{ grid-template-columns:1fr; }
  .ripple-wrap{ height:180px; order:-1; }
  .nav-links{ display:none; }
}