/* ============================================================
   NIRA RESIDENCE — Design System
   ถอดแบบจาก Fincash (21st.dev / TailGrids) : dark + lime accent
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=IBM+Plex+Sans+Thai:wght@400;500;600;700&display=swap');

:root{
  /* --- palette (ค่าจริงที่ดึงจาก demo) --- */
  --bg:#0A0A0A;
  --bg-soft:#0F0F0F;
  --surface:#141414;
  --surface-2:#1A1A1A;
  --surface-3:#222;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);

  --accent:#D6FF66;          /* rgb(214,255,102) */
  --accent-dim:rgba(214,255,102,.8);
  --accent-ghost:rgba(210,251,100,.05);
  --accent-glow:rgba(214,255,102,.35);

  --text:#FFFFFF;
  --muted:#A1A1AA;
  --muted-2:#71717A;

  --ok:#4ADE80;
  --warn:#FBBF24;
  --danger:#F87171;
  --info:#60A5FA;

  --r-sm:10px; --r-md:16px; --r-lg:24px; --r-xl:32px; --r-pill:999px;
  --shadow:0 24px 60px -20px rgba(0,0,0,.8);
  --font:'Inter','IBM Plex Sans Thai',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --nav-h:76px;
  --max:1240px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--font);font-size:16px;line-height:1.6;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
::selection{background:var(--accent);color:#000;}

/* scrollbar */
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:var(--bg);}
::-webkit-scrollbar-thumb{background:#2a2a2a;border-radius:99px;border:2px solid var(--bg);}
::-webkit-scrollbar-thumb:hover{background:#3a3a3a;}

/* ---------- layout ---------- */
.wrap{max-width:var(--max);margin-inline:auto;padding-inline:24px;}
.section{padding:112px 0;position:relative;}
.section-sm{padding:64px 0;}
.grid{display:grid;gap:24px;}
.g2{grid-template-columns:repeat(2,1fr);}
.g3{grid-template-columns:repeat(3,1fr);}
.g4{grid-template-columns:repeat(4,1fr);}
.row{display:flex;gap:16px;align-items:center;}
.row-between{display:flex;gap:16px;align-items:center;justify-content:space-between;}
.wrapflex{flex-wrap:wrap;}
.spacer{flex:1;}
.center{text-align:center;}

/* ---------- typography ---------- */
h1,h2,h3,h4{margin:0;letter-spacing:-.02em;line-height:1.12;font-weight:700;}
h1{font-size:clamp(38px,5.2vw,64px);letter-spacing:-.035em;}
h2{font-size:clamp(30px,3.6vw,46px);letter-spacing:-.03em;}
h3{font-size:clamp(19px,1.6vw,23px);}
h4{font-size:17px;}
p{margin:0;color:var(--muted);}
.lead{font-size:clamp(16px,1.2vw,18px);color:var(--muted);max-width:640px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent);background:var(--accent-ghost);
  border:1px solid rgba(214,255,102,.22);
  padding:7px 15px;border-radius:var(--r-pill);margin-bottom:22px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px var(--accent);}
.accent{color:var(--accent);}
.muted{color:var(--muted);}
.tiny{font-size:13px;}
.mono{font-variant-numeric:tabular-nums;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:var(--r-pill);border:1px solid transparent;
  font-weight:600;font-size:15px;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,background .18s ease,box-shadow .25s ease,border-color .18s;
}
.btn:active{transform:translateY(1px) scale(.99);}
.btn-primary{background:var(--accent);color:#0A0A0A;box-shadow:0 0 0 rgba(214,255,102,0);}
.btn-primary:hover{box-shadow:0 8px 34px -6px var(--accent-glow);transform:translateY(-2px);}
.btn-ghost{background:rgba(255,255,255,.04);border-color:var(--line-strong);color:#fff;}
.btn-ghost:hover{background:rgba(255,255,255,.09);border-color:rgba(255,255,255,.28);}
.btn-line{background:transparent;border-color:rgba(214,255,102,.35);color:var(--accent);}
.btn-line:hover{background:var(--accent-ghost);}
.btn-sm{padding:9px 17px;font-size:13.5px;}
.btn-lg{padding:16px 34px;font-size:16px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none;}

/* ---------- cards ---------- */
.card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:26px;position:relative;overflow:hidden;
  transition:border-color .25s,transform .25s,background .25s;
}
.card-hover:hover{border-color:rgba(214,255,102,.3);transform:translateY(-4px);}
.card-flat{background:var(--bg-soft);}
.card-pad-0{padding:0;}

/* glow blob */
.glow{position:absolute;border-radius:50%;filter:blur(90px);pointer-events:none;z-index:0;}
.glow-lime{background:rgba(214,255,102,.16);}
.glow-sm{width:280px;height:280px;}
.glow-lg{width:620px;height:620px;}

/* grid backdrop */
.gridlines{
  position:absolute;inset:0;pointer-events:none;z-index:0;opacity:.5;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:72px 72px;
  -webkit-mask-image:radial-gradient(ellipse 70% 60% at 50% 0%,#000 20%,transparent 75%);
          mask-image:radial-gradient(ellipse 70% 60% at 50% 0%,#000 20%,transparent 75%);
}
.rel{position:relative;z-index:1;}

/* ---------- navbar ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;height:var(--nav-h);z-index:100;
  display:flex;align-items:center;
  background:rgba(10,10,10,.72);backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;transition:border-color .3s,background .3s;
}
.nav.scrolled{border-bottom-color:var(--line);background:rgba(10,10,10,.9);}
.nav .wrap{display:flex;align-items:center;gap:28px;width:100%;}
.brand{display:flex;align-items:center;gap:11px;font-weight:700;font-size:20px;letter-spacing:-.02em;}
.brand-mark{
  width:32px;height:32px;border-radius:9px;flex:0 0 32px;
  background:linear-gradient(140deg,var(--accent),#9BE03C);
  display:grid;place-items:center;color:#0A0A0A;font-size:16px;font-weight:800;
  box-shadow:0 0 22px rgba(214,255,102,.35);
}
.nav-links{display:flex;gap:30px;margin-inline:auto;}
.nav-links a{font-size:15px;font-weight:500;color:var(--muted);transition:color .2s;position:relative;}
.nav-links a:hover,.nav-links a.active{color:var(--accent);}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px;}
.nav-toggle span{display:block;width:22px;height:2px;background:#fff;margin:4px 0;border-radius:2px;transition:.25s;}

/* ---------- footer ---------- */
.footer{background:var(--bg-soft);border-top:1px solid var(--line);position:relative;overflow:hidden;margin-top:0;}
.footer-inner{padding:72px 0 0;position:relative;z-index:1;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;}
.footer h5{font-size:15px;font-weight:600;margin:0 0 18px;color:#fff;}
.footer ul{list-style:none;margin:0;padding:0;display:grid;gap:12px;}
.footer ul a{color:var(--muted);font-size:14.5px;transition:color .2s;}
.footer ul a:hover{color:var(--accent);}
.wordmark{
  font-size:clamp(70px,15vw,190px);font-weight:800;letter-spacing:-.05em;
  color:rgba(255,255,255,.035);text-align:center;line-height:1;
  margin:56px 0 0;user-select:none;white-space:nowrap;overflow:hidden;
}
.footer-bottom{border-top:1px solid var(--line);padding:22px 0;text-align:center;color:var(--muted-2);font-size:13.5px;}
.newsletter{display:flex;background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-pill);padding:5px 5px 5px 20px;}
.newsletter input{flex:1;background:none;border:0;outline:none;font-size:14.5px;min-width:0;}
.newsletter input::placeholder{color:var(--muted-2);}
.newsletter button{
  width:42px;height:42px;flex:0 0 42px;border-radius:50%;border:0;cursor:pointer;
  background:var(--accent);color:#0A0A0A;display:grid;place-items:center;font-size:17px;
}

/* ---------- badges / pills ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);font-size:12.5px;font-weight:600;
  background:rgba(255,255,255,.06);border:1px solid var(--line);color:var(--muted);
}
.badge-accent{background:var(--accent);color:#0A0A0A;border-color:transparent;}
.badge-ok{background:rgba(74,222,128,.14);color:var(--ok);border-color:rgba(74,222,128,.3);}
.badge-warn{background:rgba(251,191,36,.14);color:var(--warn);border-color:rgba(251,191,36,.3);}
.badge-danger{background:rgba(248,113,113,.14);color:var(--danger);border-color:rgba(248,113,113,.3);}
.badge-info{background:rgba(96,165,250,.14);color:var(--info);border-color:rgba(96,165,250,.3);}
.badge-mute{background:rgba(255,255,255,.05);color:var(--muted-2);}
.dot{width:7px;height:7px;border-radius:50%;background:currentColor;}

/* ---------- forms ---------- */
.field{display:grid;gap:8px;}
.field label{font-size:13.5px;font-weight:500;color:var(--muted);}
.field label .req{color:var(--danger);}
.input,.select,.textarea{
  width:100%;background:var(--surface-2);border:1px solid var(--line);
  border-radius:var(--r-sm);padding:12px 14px;font-size:15px;outline:none;
  transition:border-color .2s,background .2s;
}
.input:focus,.select:focus,.textarea:focus{border-color:rgba(214,255,102,.5);background:#1d1d1d;}
.input::placeholder,.textarea::placeholder{color:var(--muted-2);}
.select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23A1A1AA' d='M6 8 0 0h12z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:36px;}
.textarea{min-height:110px;resize:vertical;}
.check{display:flex;gap:11px;align-items:flex-start;cursor:pointer;font-size:14px;color:var(--muted);}
.check input{margin-top:3px;accent-color:var(--accent);width:16px;height:16px;flex:0 0 16px;}
input[type=range]{width:100%;accent-color:var(--accent);height:6px;}
input[type=checkbox],input[type=radio]{accent-color:var(--accent);}
.help{font-size:12.5px;color:var(--muted-2);}
.err{font-size:12.5px;color:var(--danger);display:none;}
.field.invalid .input,.field.invalid .select{border-color:var(--danger);}
.field.invalid .err{display:block;}

/* segmented / chips */
.chips{display:flex;gap:9px;flex-wrap:wrap;}
.chip{
  padding:8px 16px;border-radius:var(--r-pill);border:1px solid var(--line);
  background:rgba(255,255,255,.03);font-size:13.5px;cursor:pointer;color:var(--muted);
  transition:.2s;user-select:none;
}
.chip:hover{border-color:var(--line-strong);color:#fff;}
.chip.on{background:var(--accent);color:#0A0A0A;border-color:transparent;font-weight:600;}

/* ---------- table ---------- */
.tablewrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface);}
table{width:100%;border-collapse:collapse;font-size:14px;min-width:640px;}
th{
  text-align:left;padding:14px 16px;font-size:12px;font-weight:600;letter-spacing:.06em;
  text-transform:uppercase;color:var(--muted-2);background:var(--surface-2);white-space:nowrap;
  border-bottom:1px solid var(--line);
}
td{padding:14px 16px;border-bottom:1px solid var(--line);vertical-align:middle;}
tbody tr:last-child td{border-bottom:0;}
tbody tr:hover{background:rgba(255,255,255,.025);}
.num{text-align:right;font-variant-numeric:tabular-nums;}

/* ---------- stat ---------- */
.stat{padding:8px 0;}
.stat .v{font-size:clamp(34px,4vw,54px);font-weight:700;letter-spacing:-.03em;line-height:1;}
.stat .k{color:var(--muted);font-size:14.5px;margin-top:10px;}
.stat-divide{border-left:1px solid var(--line);}

/* ---------- reveal animation ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s cubic-bezier(.16,1,.3,1),transform .7s cubic-bezier(.16,1,.3,1);}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
}

/* ---------- misc ---------- */
.divider{height:1px;background:var(--line);border:0;margin:0;}
.kv{display:flex;justify-content:space-between;gap:16px;padding:11px 0;border-bottom:1px dashed var(--line);font-size:14.5px;}
.kv:last-child{border-bottom:0;}
.kv .k{color:var(--muted);}
.kv .v{font-weight:600;text-align:right;font-variant-numeric:tabular-nums;}
.kv.total{border-top:1px solid var(--line-strong);border-bottom:0;margin-top:8px;padding-top:16px;}
.kv.total .k{color:#fff;font-weight:600;font-size:16px;}
.kv.total .v{color:var(--accent);font-size:22px;font-weight:700;}

.toast{
  position:fixed;bottom:26px;left:50%;transform:translate(-50%,120%);
  background:var(--accent);color:#0A0A0A;font-weight:600;font-size:14.5px;
  padding:13px 24px;border-radius:var(--r-pill);z-index:9999;
  box-shadow:0 14px 40px -8px rgba(214,255,102,.5);transition:transform .4s cubic-bezier(.16,1,.3,1);
}
.toast.show{transform:translate(-50%,0);}
.toast.err{background:var(--danger);color:#fff;box-shadow:0 14px 40px -8px rgba(248,113,113,.5);}

.modal-back{
  position:fixed;inset:0;background:rgba(0,0,0,.72);backdrop-filter:blur(6px);
  z-index:200;display:none;align-items:center;justify-content:center;padding:24px;
}
.modal-back.open{display:flex;}
.modal{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  width:min(560px,100%);max-height:88vh;overflow:auto;padding:30px;box-shadow:var(--shadow);
}
.modal-lg{width:min(860px,100%);}

.skeleton{background:linear-gradient(90deg,#161616,#1f1f1f,#161616);background-size:200% 100%;animation:sk 1.4s infinite;border-radius:var(--r-sm);}
@keyframes sk{0%{background-position:200% 0}100%{background-position:-200% 0}}

/* image placeholder (generated, no external asset) */
.ph{
  position:relative;background:linear-gradient(150deg,#1b1f16,#101010 60%);
  display:grid;place-items:center;overflow:hidden;
}
.ph::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:26px 26px;
}
.ph::after{transition:opacity .4s ease;}
.ph-label{position:relative;z-index:1;color:rgba(255,255,255,.22);font-size:13px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;transition:opacity .3s ease;}

/* ---------- real images (drop-in) ----------
   วาง .jpg/.png/.webp ชื่อตรงตาม assets/img/README.md แล้วรูปจะขึ้นเอง
   ถ้าไฟล์ไหนยังไม่มี จะถอยกลับไปใช้ placeholder เดิมอัตโนมัติ (ไม่พัง) */
.ph-img{
  position:absolute;inset:0;width:100%;height:100%;
  object-fit:cover;z-index:1;opacity:0;transition:opacity .5s ease;
}
.has-img > .ph-img{opacity:1;}
.ph.has-img::after{opacity:0;}
.ph.has-img .ph-label{opacity:0;}
/* ไล่เฉดมืดหัว-ท้าย เพื่อให้ badge ที่วางทับรูปยังอ่านออก */
.ph.has-img::before{
  content:"";position:absolute;inset:0;z-index:2;pointer-events:none;
  background:linear-gradient(180deg,rgba(0,0,0,.5),rgba(0,0,0,0) 34%,rgba(0,0,0,0) 60%,rgba(0,0,0,.55));
}
.ph.no-scrim.has-img::before{display:none;}
.ph.ph-contain > .ph-img{object-fit:contain;background:#0d0f0c;}
.ph > .ph-img{transition:opacity .5s ease,transform .6s ease;}
.card-hover:hover .ph.has-img > .ph-img{transform:scale(1.04);}

/* รูปคนใน testimonial (ใช้กลไกเดียวกัน แต่ไม่มี .ph) */
.avatar{position:relative;overflow:hidden;}
.avatar.has-img{color:transparent;}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .g4{grid-template-columns:repeat(2,1fr);}
  .g3{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:860px){
  .section{padding:76px 0;}
  .nav-toggle{display:block;}
  .nav-links{
    position:fixed;top:var(--nav-h);left:0;right:0;
    flex-direction:column;gap:0;margin:0;padding:8px 24px 22px;
    background:rgba(10,10,10,.97);backdrop-filter:blur(16px);border-bottom:1px solid var(--line);
    display:none;
  }
  .nav-links.open{display:flex;}
  .nav-links a{padding:14px 0;border-bottom:1px solid var(--line);font-size:16px;}
  .g2,.g3,.g4{grid-template-columns:1fr;}
  .stat-divide{border-left:0;border-top:1px solid var(--line);padding-top:24px;}
  .footer-grid{grid-template-columns:1fr;}
  .nav .btn-primary{display:none;}
}
@media (max-width:520px){
  .wrap{padding-inline:18px;}
  .card{padding:20px;}
}