/* ── Reset & Base ──────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased}
body{
  background-color:var(--bg);color:var(--ink);
  font-family:var(--f-body);font-size:15px;line-height:1.65;overflow-x:hidden;
  /* dot grid texture */
  background-image:radial-gradient(rgba(255,255,255,0.028) 1px,transparent 1px);
  background-size:24px 24px
}
/* Ambient amber glow at top */
body::before{
  content:'';position:fixed;top:-180px;left:50%;transform:translateX(-50%);
  width:900px;height:600px;pointer-events:none;z-index:0;
  background:radial-gradient(ellipse,rgba(245,166,35,0.055) 0%,transparent 68%)
}
a{text-decoration:none;color:inherit}
button{font-family:var(--f-body);cursor:pointer;border:none}
ul{list-style:none}

::-webkit-scrollbar{width:5px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:rgba(255,255,255,0.12);border-radius:4px}

/* ── Dark Mode Properties ───────────────────────────────── */
:root{
  --bg:#0B0B0B;
  --bg2:#141414;
  --bg3:#1C1C1C;
  --white:#111111;

  --ink:#F0EEE8;
  --ink2:#C8C4BB;
  --ink3:#78746E;
  --ink4:#464340;

  --border:rgba(255,255,255,0.07);
  --border2:rgba(255,255,255,0.13);

  --amber:#F5A623;--amber-d:#D4890E;
  --amber-light:rgba(245,166,35,0.10);
  --amber-mid:rgba(245,166,35,0.20);
  --amber-glow:rgba(245,166,35,0.12);
  --amber-ring:rgba(245,166,35,0.35);

  --green:#22C55E;
  --green-bg:rgba(34,197,94,0.10);
  --green-bd:rgba(34,197,94,0.25);

  --f-display:'Sora',sans-serif;--f-body:'DM Sans',sans-serif;

  --sh1:0 1px 4px rgba(0,0,0,0.5);
  --sh2:0 4px 20px rgba(0,0,0,0.6);
  --sh3:0 10px 40px rgba(0,0,0,0.7);
  --sh4:0 24px 80px rgba(0,0,0,0.8);
  --sh-amber:0 8px 40px rgba(245,166,35,0.22);

  --r:10px;--r2:16px;--r3:24px;--r-full:9999px;
  --nav-h:66px;
}

/* ── Layout ────────────────────────────────────────────── */
.wrap{max-width:1120px;margin:0 auto;padding:0 40px}

/* ── Typography ────────────────────────────────────────── */
.disp{
  font-family:var(--f-display);font-size:clamp(38px,5.5vw,64px);
  font-weight:800;letter-spacing:-0.04em;line-height:1.0;color:var(--ink)
}
.ttl{
  font-family:var(--f-display);font-size:clamp(36px,5vw,72px);
  font-weight:700;letter-spacing:-0.03em;line-height:1.12
}
.lead{font-size:clamp(15px,1.8vw,17px);line-height:1.8;color:var(--ink3);font-weight:400}

/* ── Buttons ───────────────────────────────────────────── */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--f-body);font-weight:600;cursor:pointer;
  transition:all 0.18s ease;white-space:nowrap;border:none
}
.btn-amber{
  position:relative;overflow:hidden;
  background:var(--amber);color:#fff;padding:13px 26px;
  border-radius:var(--r);font-size:14px;
  box-shadow:0 2px 0 var(--amber-d),0 4px 16px rgba(245,166,35,0.35)
}
.btn-amber::after{
  content:'';position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(105deg,transparent 35%,rgba(255,255,255,0.28) 50%,transparent 65%);
  background-size:220% 100%;background-position:-220% 0;
  animation:shimmer-slide 3.5s ease-in-out infinite
}
.btn-amber:hover{background:#e89b18;transform:translateY(-1px);box-shadow:0 2px 0 var(--amber-d),0 8px 24px rgba(245,166,35,0.45)}
.btn-amber.lg{font-size:16px;padding:17px 38px;border-radius:var(--r2)}

/* ── Chips ─────────────────────────────────────────────── */
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;
  border-radius:var(--r-full);font-size:11px;font-weight:700;
  letter-spacing:0.07em;text-transform:uppercase
}
.chip-amber{background:rgba(255,210,0,0.15);color:#FFD700;border:1.5px solid rgba(255,210,0,0.6);font-weight:800}
.chip-dot::before{content:none}

/* ── Scroll reveal — reversible (enter spring, exit snap) ─ */
.rv,.rv-l,.rv-r,.rv-u{
  opacity:0;
  will-change:transform,opacity;
  transition:opacity 0.3s cubic-bezier(0.4,0,1,1),transform 0.3s cubic-bezier(0.4,0,1,1)
}
.rv   { transform:translateY(48px) }
.rv-l { transform:translateX(-80px) }
.rv-r { transform:translateX(80px) }
.rv-u { transform:translateY(-40px) }
.rv.on,.rv-l.on,.rv-r.on,.rv-u.on{
  opacity:1;transform:none;
  transition:opacity 0.7s cubic-bezier(0.16,1,0.3,1),transform 0.7s cubic-bezier(0.16,1,0.3,1)
}

.d1{transition-delay:0.06s}
.d2{transition-delay:0.16s}
.d3{transition-delay:0.28s}
.d4{transition-delay:0.42s}

/* ── Word-by-word reveal ─────────────────────────────────── */
.word-span{
  display:inline-block;opacity:0;
  transition:opacity 0.16s cubic-bezier(0.4,0,1,1),transform 0.16s cubic-bezier(0.4,0,1,1)
}
[data-word-reveal="up"]   .word-span{transform:translateY(20px)}
[data-word-reveal="ltr"]  .word-span{transform:translateX(-20px)}
[data-word-reveal="rtl"]  .word-span{transform:translateX(20px)}
[data-word-reveal="down"] .word-span{transform:translateY(-20px)}
.word-revealed .word-span{
  opacity:1;transform:none;
  transition:opacity 0.5s cubic-bezier(0.16,1,0.3,1),transform 0.5s cubic-bezier(0.16,1,0.3,1);
  transition-delay:calc(var(--wi)*0.055s)
}
[data-word-reveal="rtl"].word-revealed .word-span{
  transition-delay:calc(var(--wi-r,0)*0.055s)
}

/* ── Section entrance ──────────────────────────────────── */
.sec-enter{
  opacity:0;transform:translateY(20px);
  transition:opacity 0.8s cubic-bezier(0.16,1,0.3,1),transform 0.8s cubic-bezier(0.16,1,0.3,1)
}
.sec-enter.sec-visible{opacity:1;transform:none}

/* ── Dramatic heading zoom — starts 3× huge, zooms to place ── */
.hd-zoom{
  opacity:0;transform:scale(1.35);
  transform-origin:center center;
  will-change:transform,opacity;
  transition:opacity .3s cubic-bezier(0.4,0,1,1),transform .3s cubic-bezier(0.4,0,1,1)
}
.hd-zoom.on{
  opacity:1;transform:scale(1);
  transition:opacity 1s cubic-bezier(0.16,1,0.3,1),transform 1.2s cubic-bezier(0.16,1,0.3,1)
}

/* ── Dramatic section zoom — direction-aware ─────────────── */
.sec-zoom{
  opacity:0;transform:scale(0.88) translateY(60px);
  will-change:transform,opacity;
  transition:opacity .4s cubic-bezier(0.4,0,1,1),transform .4s cubic-bezier(0.4,0,1,1)
}
.sec-zoom.sz-in{
  opacity:1;transform:scale(1) translateY(0);
  transition:opacity 1s cubic-bezier(0.16,1,0.3,1),transform 1.1s cubic-bezier(0.16,1,0.3,1)
}
/* Scrolled past — scale up and vanish */
.sec-zoom.sz-above{
  opacity:0;transform:scale(1.12) translateY(-50px);
  transition:opacity .5s ease-in,transform .5s ease-in
}

/* ── Scroll progress bar ────────────────────────────────── */
#scroll-progress{
  position:fixed;top:0;left:0;right:0;height:2px;z-index:1100;
  background:linear-gradient(90deg,var(--amber-d),var(--amber),#FFD166);
  transform:scaleX(0);transform-origin:left;will-change:transform;
  box-shadow:0 0 10px rgba(245,166,35,0.6)
}

/* ── Keyframes ─────────────────────────────────────────── */
@keyframes shimmer-slide{
  0%{background-position:-220% 0;opacity:0}
  8%{opacity:1}
  35%{background-position:220% 0}
  36%,100%{opacity:0}
}
@keyframes float-gentle{
  0%,100%{transform:translateY(0)}
  50%{transform:translateY(-8px)}
}
@keyframes glow-pulse{
  0%,100%{box-shadow:0 0 0 0 rgba(245,166,35,0.0)}
  50%{box-shadow:0 0 40px 12px rgba(245,166,35,0.18)}
}
@keyframes badge-breathe{
  0%,100%{opacity:0.75}
  50%{opacity:1}
}
.float-anim{animation:float-gentle 3.2s ease-in-out infinite}
.glow-anim{animation:glow-pulse 2.8s ease-in-out infinite}