/* =========================================================
   Interactive Virtual Tour — Portfolio Homepage
   Konsep: "blue hour exterior, warm lit interior" — palet
   yang meniru cara foto properti 360 terbaik dipotret:
   struktur gelap kebiruan + kehangatan cahaya interior.
   ========================================================= */

:root{
  --bg:#0B1220;
  --surface:#111A2E;
  --surface-2:#182644;
  --line:rgba(237,242,255,0.09);
  --line-strong:rgba(237,242,255,0.16);
  --text:#F3F5FA;
  --text-dim:#93A0BC;
  --text-faint:#5C6788;
  --gold:#D6A756;
  --gold-soft:#F2CE8A;
  --gold-dim:rgba(214,167,86,0.14);

  --font-display:"Newsreader", Georgia, serif;
  --font-body:"Manrope", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --maxw:1220px;
  --radius-lg:22px;
  --radius-md:14px;
  --radius-sm:9px;
  --ease:cubic-bezier(.19,.86,.2,1);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
html,body{margin:0;padding:0;}

body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-body);
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}

.container{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 24px;
}

h1,h2,h3{
  font-family:var(--font-display);
  font-weight:500;
  line-height:1.15;
  margin:0;
  letter-spacing:-0.01em;
}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *{transition:none !important; animation:none !important;}
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:12px 22px;
  border-radius:100px;
  font-size:14.5px;
  font-weight:600;
  border:1px solid transparent;
  transition:transform .35s var(--ease), background .3s ease, border-color .3s ease, color .3s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--gold);
  color:#1A1103;
}
.btn-primary:hover{background:var(--gold-soft); transform:translateY(-1px);}
.btn-ghost{
  border-color:rgba(255,255,255,0.3);
  color:var(--text);
  background:rgba(255,255,255,0.04);
}
.btn-ghost:hover{border-color:rgba(255,255,255,0.6); background:rgba(255,255,255,0.08);}
.btn-cta{
  background:var(--surface-2);
  color:var(--text);
  border-color:var(--line-strong);
  padding:10px 20px;
  font-size:13.5px;
}
.btn-cta:hover{background:var(--gold-dim); border-color:var(--gold);}
.btn-lg{padding:15px 30px; font-size:15.5px;}

/* ---------- Header ---------- */
.site-header{
  position:fixed;
  top:0; left:0; right:0;
  z-index:100;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .4s ease, border-color .4s ease, backdrop-filter .4s ease;
}
.site-header.scrolled{
  background:rgba(11,18,32,0.78);
  backdrop-filter:blur(14px);
  border-color:var(--line);
}
.header-inner{
  max-width:var(--maxw);
  margin:0 auto;
  padding:16px 24px;
  display:flex;
  align-items:center;
  gap:28px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  margin-right:auto;
}
.brand-mark{color:var(--gold); display:flex;}
.brand-mark svg{animation:spin 22s linear infinite;}
@keyframes spin{to{transform:rotate(360deg);}}
.brand-text{display:flex; flex-direction:column; line-height:1.15;}
.brand-name{font-family:var(--font-display); font-size:17px; font-weight:600;}
.brand-sub{font-size:11px; color:var(--text-dim);}

.main-nav{display:flex; align-items:center; gap:26px;}
.main-nav a{font-size:14px; color:var(--text-dim); transition:color .25s ease;}
.main-nav a:hover{color:var(--text);}
.lang-switch.lang-switch--mobile{display:none;}

.header-actions{display:flex; align-items:center; gap:14px;}
.lang-switch{
  display:flex;
  border:1px solid var(--line-strong);
  border-radius:100px;
  padding:3px;
  gap:2px;
}
.lang-switch button{
  border:none;
  background:transparent;
  color:var(--text-faint);
  font-family:var(--font-body);
  font-size:12px;
  font-weight:600;
  padding:6px 10px;
  border-radius:100px;
  cursor:pointer;
  transition:background .25s ease, color .25s ease;
}
.lang-switch button:hover{color:var(--text);}
.lang-switch button.active{background:var(--gold); color:#1A1103;}

.menu-toggle{
  display:none;
  flex-direction:column;
  gap:5px;
  background:none;
  border:none;
  cursor:pointer;
  padding:6px;
}
.menu-toggle span{width:22px; height:2px; background:var(--text); border-radius:2px; transition:transform .3s ease, opacity .3s ease;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  height:min(92vh, 860px);
  min-height:560px;
  overflow:hidden;
  background:var(--surface);
}
.hero-embed{position:absolute; inset:0;}
.hero-embed iframe{
  width:100%; height:100%; border:0; display:block;
  opacity:1; transition:opacity .5s ease;
}
.hero-embed.switching iframe{opacity:0;}
.hero-embed-mobile{
  display:none;
  position:absolute; inset:0;
  cursor:pointer;
}
.hero-embed-mobile img{width:100%; height:100%; object-fit:cover; display:block;}
.hero-scrim{
  position:absolute; inset:0;
  background:
    linear-gradient(180deg, rgba(6,10,20,0.55) 0%, rgba(6,10,20,0.05) 30%, rgba(6,10,20,0.35) 62%, rgba(6,10,20,0.92) 100%);
  pointer-events:none;
}
.hero-content{
  position:relative;
  z-index:2;
  height:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 24px 76px;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  pointer-events:none;
}
.hero-content > *{pointer-events:auto;}
.hero-kicker{
  font-size:13px;
  color:var(--gold-soft);
  margin:0 0 14px;
  font-weight:600;
}
.hero-content h1{
  font-size:clamp(32px, 5vw, 56px);
  max-width:14ch;
  color:#fff;
  margin-bottom:16px;
}
.hero-desc{
  font-size:16px;
  line-height:1.6;
  color:rgba(243,245,250,0.82);
  max-width:46ch;
  margin:0 0 30px;
}
.hero-actions{display:flex; gap:14px; flex-wrap:wrap;}

.tap-cue{
  position:absolute;
  bottom:28px; left:50%;
  transform:translateX(-50%);
  z-index:2;
  width:38px; height:38px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  background:rgba(11,18,32,0.28);
  border:1.2px solid rgba(242,206,138,0.32);
  opacity:0.65;
  transition:border-color .25s ease, background .25s ease, opacity .25s ease;
}
.tap-cue:hover{border-color:rgba(242,206,138,0.6); background:rgba(11,18,32,0.5); opacity:1;}
.tap-dot{
  width:9px; height:9px;
  border-radius:50%;
  background:var(--gold-soft);
  z-index:2;
  transition:transform .25s ease;
}
.tap-cue:hover .tap-dot{transform:scale(1.15);}
.tap-ring{
  position:absolute;
  inset:-1px;
  border-radius:50%;
  border:1.2px solid rgba(242,206,138,0.7);
  opacity:0;
  animation:tapPulse 2.6s ease-out infinite;
}
.tap-ring--delay{animation-delay:1.3s;}
@keyframes tapPulse{
  0%{transform:scale(1); opacity:0.45;}
  100%{transform:scale(1.6); opacity:0;}
}
@media (prefers-reduced-motion: reduce){
  .tap-ring{animation:none; opacity:0;}
}

/* ---------- Section heading ---------- */
.section-heading{max-width:640px; margin:0 0 42px;}
.section-heading h2{font-size:clamp(26px, 3.4vw, 38px); margin-bottom:14px;}
.section-heading p{font-size:15.5px; color:var(--text-dim); line-height:1.65; margin:0;}

/* ---------- Portfolio (primary) ---------- */
.portfolio{padding:96px 0 88px;}
.portfolio-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(300px, 1fr));
  gap:26px;
}
.port-card{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  background:var(--surface);
  border:1px solid var(--line);
  cursor:pointer;
  opacity:0;
  transform:translateY(18px);
  transition:opacity .7s var(--ease), transform .7s var(--ease), border-color .3s ease, box-shadow .4s ease;
}
.port-card.in-view{opacity:1; transform:translateY(0);}
.port-card:hover{border-color:var(--line-strong); box-shadow:0 24px 60px rgba(0,0,0,0.35);}
.port-card:hover .port-frame::after{opacity:0;}
.port-frame{
  position:relative;
  aspect-ratio:16/10;
  background:var(--surface-2);
}
.port-frame iframe, .port-frame img{width:100%; height:100%; border:0; display:block; object-fit:cover;}
.port-frame.no-thumb img{display:none;}
.port-frame.no-thumb{background:linear-gradient(135deg, var(--surface-2), var(--surface));}
.port-play{
  position:absolute; inset:0;
  display:flex; align-items:center; justify-content:center;
  z-index:2;
  opacity:0;
  transition:opacity .3s ease;
}
.port-play svg{
  width:22px; height:22px;
  color:#1A1103;
  margin-left:2px;
}
.port-play::before{
  content:"";
  position:absolute; width:52px; height:52px;
  border-radius:50%;
  background:var(--gold-soft);
  box-shadow:0 10px 30px rgba(0,0,0,0.4);
}
.port-card:hover .port-play{opacity:1;}
.port-frame::after{
  content:"";
  position:absolute; inset:0;
  background:linear-gradient(180deg, rgba(11,18,32,0) 55%, rgba(11,18,32,0.65) 100%);
  transition:opacity .3s ease;
}
.port-badge{
  position:absolute; top:14px; left:14px;
  font-size:11px; font-weight:700;
  letter-spacing:0.02em;
  color:#1A1103;
  background:var(--gold);
  padding:4px 10px;
  border-radius:100px;
  z-index:2;
}
.port-full{
  position:absolute; top:12px; right:12px;
  z-index:3;
  width:32px; height:32px;
  border-radius:100px;
  background:rgba(11,18,32,0.55);
  border:1px solid rgba(255,255,255,0.25);
  display:flex; align-items:center; justify-content:center;
  color:#fff;
  transition:background .25s ease, border-color .25s ease;
}
.port-full:hover{background:rgba(11,18,32,0.85); border-color:var(--gold);}
.port-full svg{width:14px; height:14px;}
.port-body{padding:18px 20px 20px;}
.port-name{font-family:var(--font-display); font-size:19px; font-weight:500; margin-bottom:5px;}
.port-meta{font-size:13px; color:var(--text-dim);}

/* ---------- Info (secondary / side) ---------- */
.info{
  padding:70px 0;
  background:var(--surface);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.info-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr;
  gap:52px;
  align-items:start;
}
.info-main{display:flex; flex-direction:column; gap:12px;}
.info-card{
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  background:var(--bg);
  padding:6px 22px;
}
.info-card summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:16px 0;
}
.info-card summary::-webkit-details-marker{display:none;}
.info-card summary h3{font-size:16.5px; font-weight:600; color:var(--text);}
.info-toggle{
  width:18px; height:18px;
  flex:none;
  position:relative;
}
.info-toggle::before,.info-toggle::after{
  content:"";
  position:absolute; top:50%; left:50%;
  background:var(--text-dim);
  transform:translate(-50%,-50%);
  transition:transform .3s ease, opacity .3s ease;
}
.info-toggle::before{width:12px; height:1.6px;}
.info-toggle::after{width:1.6px; height:12px;}
.info-card[open] .info-toggle::after{opacity:0; transform:translate(-50%,-50%) rotate(90deg);}
.info-points, .info-steps{
  margin:0;
  padding:0 0 20px;
  list-style:none;
  display:flex;
  flex-direction:column;
  gap:13px;
}
.info-points li{
  font-size:14px;
  line-height:1.65;
  color:var(--text-dim);
  padding-left:18px;
  position:relative;
}
.info-points li::before{
  content:"";
  position:absolute; left:0; top:9px;
  width:5px; height:5px;
  border-radius:100px;
  background:var(--gold);
}
.info-steps{counter-reset:step;}
.info-steps li{
  counter-increment:step;
  font-size:14px;
  color:var(--text-dim);
  padding-left:30px;
  position:relative;
  line-height:1.6;
}
.info-steps li::before{
  content:counter(step);
  position:absolute; left:0; top:0;
  width:20px; height:20px;
  border-radius:100px;
  background:var(--gold-dim);
  color:var(--gold-soft);
  font-size:11px;
  font-weight:700;
  display:flex; align-items:center; justify-content:center;
}
.info-steps li b{display:block; color:var(--text); font-weight:600; margin-bottom:2px;}

.info-stats{
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:26px 24px;
  background:var(--bg);
}
.stats-label{font-size:13.5px; color:var(--text-dim); margin:0 0 18px; line-height:1.5;}
.stat-row{
  display:flex;
  align-items:baseline;
  gap:12px;
  padding:12px 0;
  border-top:1px solid var(--line);
}
.stat-row:first-of-type{border-top:none;}
.stat-num{font-family:var(--font-display); font-size:22px; color:var(--gold-soft); font-weight:500; flex:none;}
.stat-row span:last-child{font-size:13px; color:var(--text-dim); line-height:1.5;}
.stats-source{font-size:11.5px; color:var(--text-faint); margin:14px 0 0;}

/* ---------- Final CTA ---------- */
.cta-final{padding:104px 0; text-align:center;}
.cta-final h2{font-size:clamp(28px, 4vw, 42px); max-width:16ch; margin:0 auto 16px;}
.cta-final p{font-size:15.5px; color:var(--text-dim); max-width:48ch; margin:0 auto 34px; line-height:1.65;}

/* ---------- Footer ---------- */
.site-footer{border-top:1px solid var(--line); padding:26px 0;}
.footer-inner{
  display:flex;
  justify-content:space-between;
  gap:12px;
  font-size:12.5px;
  color:var(--text-faint);
}

/* ---------- Focus states ---------- */
a:focus-visible, button:focus-visible, summary:focus-visible{
  outline:2px solid var(--gold);
  outline-offset:2px;
  border-radius:4px;
}

/* ---------- Responsive ---------- */
@media (max-width:980px){
  .info-grid{grid-template-columns:1fr;}
  .info-stats{order:-1;}
}

@media (max-width:760px){
  .main-nav{
    position:fixed;
    top:64px; left:16px; right:16px;
    background:rgba(17,26,46,0.98);
    backdrop-filter:blur(14px);
    border:1px solid var(--line-strong);
    border-radius:var(--radius-md);
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:8px;
    transform:translateY(-12px);
    opacity:0;
    pointer-events:none;
    transition:opacity .3s ease, transform .3s ease;
  }
  .main-nav.open{opacity:1; transform:translateY(0); pointer-events:auto;}
  .main-nav a{padding:13px 12px; border-bottom:1px solid var(--line);}
  .main-nav a:last-of-type{border-bottom:none;}
  .lang-switch.lang-switch--mobile{display:flex; justify-content:center; margin-top:8px;}
  .lang-switch.lang-switch--desktop{display:none;}
  .header-actions .btn-cta{display:none;}
  .menu-toggle{display:flex;}

  .hero{height:min(100vh, 720px);}
  .hero-embed iframe{display:none;}
  .hero-embed-mobile{display:block;}
  .hero-content{padding-bottom:56px;}
  .hero-actions{flex-direction:column; align-items:stretch;}
  .hero-actions .btn{justify-content:center;}
  .tap-cue{display:none;}

  .portfolio{padding:64px 0;}
  .info{padding:52px 0;}
  .cta-final{padding:72px 0;}
}