/* ============================================================
   Vibul Invest — site styles
   Brand refresh: warm charcoal + coral/lime, Space Grotesk display type.
   ============================================================ */
:root{
  --ink:#14151A;
  --ink-2:#1E2027;
  --coral:#FF5A3C;
  --coral-d:#E14225;
  --lime:#C6FF5E;
  --lime-d:#8FBF2E;
  --paper:#FAF7F2;
  --muted:#6B6F76;
  --line:rgba(20,21,26,.10);
  --glass:rgba(255,255,255,.72);
  --glass-brd:rgba(255,255,255,.55);
  --shadow:0 20px 50px -22px rgba(20,10,5,.35);
  --radius:22px;
  --maxw:1180px;
  --display:"Space Grotesk",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  --sans:"Inter",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--sans);color:var(--ink);
  background:var(--paper);line-height:1.6;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3{font-family:var(--display);font-weight:700;line-height:1.1;letter-spacing:-.01em;margin:0}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;font-size:.74rem;font-weight:700;
  letter-spacing:.16em;text-transform:uppercase;color:var(--coral-d);
}
.eyebrow::before{content:"";width:24px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--lime),var(--coral))}
.section{padding:76px 0}
.section--tight{padding:52px 0}
section[id]{scroll-margin-top:90px}
.muted{color:var(--muted)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;cursor:pointer;border:0;
  font-family:var(--sans);font-weight:600;font-size:.92rem;padding:12px 22px;
  border-radius:999px;transition:.22s ease;text-align:center;letter-spacing:.01em;
}
.btn--primary{background:linear-gradient(120deg,var(--coral),var(--coral-d));color:#fff;
  box-shadow:0 12px 26px -10px rgba(225,66,37,.65)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 18px 32px -12px rgba(225,66,37,.75)}
.btn--ghost{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.4);backdrop-filter:blur(6px)}
.btn--ghost:hover{background:rgba(255,255,255,.22)}
.btn--dark{background:var(--ink);color:#fff}
.btn--dark:hover{background:var(--ink-2)}
.btn--block{width:100%;justify-content:center}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:50;transition:.3s ease;
  padding:14px 0;
}
.site-header.scrolled{background:rgba(20,21,26,.9);backdrop-filter:blur(12px);
  box-shadow:0 8px 30px -18px rgba(0,0,0,.6);padding:9px 0}
.nav{display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:11px;color:#fff}
.brand img{width:36px;height:36px}
.brand-name{font-family:var(--display);font-weight:700;font-size:1.16rem;letter-spacing:-.01em}
.brand-name small{display:block;font-family:var(--sans);font-weight:600;font-size:.58rem;
  letter-spacing:.26em;text-transform:uppercase;color:var(--lime);margin-top:1px}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{color:rgba(255,255,255,.82);font-weight:500;font-size:.9rem;
  padding:8px 14px;border-radius:999px;transition:.2s}
.nav-links a:hover,.nav-links a.active{color:#fff;background:rgba(255,255,255,.12)}
.nav-cta{margin-left:8px}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:24px;height:2px;background:#fff;margin:5px 0;transition:.25s}
.lang-switch{display:inline-flex;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);
  border-radius:999px;padding:3px;margin-left:10px}
.lang-switch button{border:0;background:none;color:rgba(255,255,255,.75);font-family:var(--sans);
  font-weight:700;font-size:.74rem;letter-spacing:.04em;padding:6px 12px;border-radius:999px;cursor:pointer;transition:.2s}
.lang-switch button.active{background:#fff;color:var(--ink)}
.lang-switch button:hover:not(.active){color:#fff}

/* ---------- hero ---------- */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;
  color:#fff;overflow:hidden;isolation:isolate}
.hero-bg{position:absolute;inset:0;z-index:-2;background:var(--ink)}
.hero-slide{position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:0;animation:heroFade 28s infinite;will-change:opacity,transform}
.hero-slide:nth-child(1){background-image:url('/assets/vietnam-1.jpg');animation-delay:0s}
.hero-slide:nth-child(2){background-image:url('/assets/bulgaria-2.jpg');animation-delay:7s}
.hero-slide:nth-child(3){background-image:url('/assets/vietnam-2.jpg');animation-delay:14s}
.hero-slide:nth-child(4){background-image:url('/assets/bulgaria-1.jpg');animation-delay:21s}
/* Seamless 4-slide slideshow: each slide is delayed 25% of the cycle (7s of 28s)
   and its fade-out (25%->31%) overlaps the next slide's fade-in, so a photo is
   always on screen — no dark gaps. Subtle Ken-Burns zoom while visible. */
@keyframes heroFade{
  0%{opacity:0;transform:scale(1.12)}
  6%{opacity:1}
  25%{opacity:1}
  31%{opacity:0;transform:scale(1.0)}
  100%{opacity:0;transform:scale(1.0)}
}
@media(prefers-reduced-motion:reduce){
  .hero-slide{animation:none}
  .hero-slide:nth-child(1){opacity:1}
}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(105deg,rgba(16,11,9,.92) 0%,rgba(20,15,12,.74) 42%,rgba(24,16,10,.4) 100%)}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background:radial-gradient(120% 90% at 85% 100%,rgba(255,90,60,.22) 0%,transparent 45%),
             radial-gradient(120% 90% at 15% 20%,transparent 40%,rgba(8,6,5,.5) 100%)}
.hero-inner{padding:132px 0 88px;max-width:700px}
.hero h1{font-size:clamp(2.4rem,5vw,3.8rem);margin:18px 0 18px;letter-spacing:-.02em}
.hero h1 .accent{color:var(--lime)}
.hero p.lead{font-size:1.1rem;color:rgba(255,255,255,.9);max-width:580px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px}
.hero-flags{display:flex;gap:22px;margin-top:44px;flex-wrap:wrap}
.hero-flag{display:flex;align-items:center;gap:10px;font-size:.92rem;color:rgba(255,255,255,.85)}
.hero-flag .dot{width:34px;height:24px;border-radius:5px;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,.3);flex:0 0 auto}
.hero-scroll{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);
  color:rgba(255,255,255,.7);font-size:.75rem;letter-spacing:.2em;text-transform:uppercase;animation:bob 2.4s infinite}
@keyframes bob{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,8px)}}

/* ---------- stat strip ---------- */
.stats{background:var(--ink);color:#fff;padding:40px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;text-align:center}
.stat{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);border-radius:16px;padding:20px 12px}
.stat b{font-family:var(--display);font-size:2.1rem;color:var(--lime);display:block;letter-spacing:-.02em}
.stat span{font-size:.83rem;color:rgba(255,255,255,.68)}

/* ---------- panels / cards ---------- */
.grid{display:grid;gap:26px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:28px;box-shadow:var(--shadow);transition:.28s ease;
}
.panel:hover{transform:translateY(-5px)}
.panel .ico{width:50px;height:50px;border-radius:14px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(255,90,60,.15),rgba(198,255,94,.22));
  color:var(--coral-d);font-size:1.35rem;margin-bottom:16px}
.panel h3{font-size:1.2rem;margin-bottom:9px}
.section-head{max-width:640px;margin:0 auto 52px;text-align:center}
.section-head h2{font-size:clamp(1.9rem,3.4vw,2.7rem);margin:14px 0 12px}

/* two-column feature */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.split .visual{border-radius:26px;overflow:hidden;box-shadow:var(--shadow);
  aspect-ratio:4/3;background-size:cover;background-position:center;position:relative;
  transition:transform .8s cubic-bezier(.2,.7,.2,1)}
.split:hover .visual{transform:scale(1.02)}
.split .visual::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 50%,rgba(16,11,9,.6))}
.checklist{list-style:none;padding:0;margin:22px 0 0;display:grid;gap:14px}
.checklist li{display:flex;gap:12px;align-items:flex-start}
.checklist li::before{content:"✓";flex:0 0 auto;width:24px;height:24px;border-radius:50%;
  background:var(--coral);color:#fff;display:grid;place-items:center;font-size:.8rem;font-weight:700;margin-top:2px}

/* ---------- parallax scenery band ---------- */
.scene{position:relative;min-height:460px;display:flex;align-items:center;color:#fff;
  background-size:cover;background-position:center;background-attachment:fixed;isolation:isolate;overflow:hidden}
.scene::after{content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(90deg,rgba(14,10,8,.88) 0%,rgba(18,13,10,.58) 55%,rgba(20,15,10,.25) 100%)}
.scene .eyebrow{color:var(--lime)}
.scene .eyebrow::before{background:linear-gradient(90deg,var(--coral),var(--lime))}
.scene h2{font-size:clamp(1.9rem,3.6vw,2.9rem);max-width:660px;margin:14px 0 16px}
.scene p{max-width:560px;color:rgba(255,255,255,.92);font-size:1.1rem}
@media(max-width:900px){.scene{background-attachment:scroll}}

/* ---------- form panel ---------- */
.form-wrap{background:linear-gradient(160deg,var(--ink),var(--ink-2));color:#fff;
  border-radius:30px;padding:44px;box-shadow:var(--shadow);position:relative;overflow:hidden}
.form-wrap::before{content:"";position:absolute;top:-60px;right:-60px;width:220px;height:220px;
  background:radial-gradient(circle,rgba(255,90,60,.35),transparent 70%)}
.form-wrap h3{color:#fff;font-size:1.7rem;margin-bottom:6px;font-family:var(--display)}
.form-wrap p{color:rgba(255,255,255,.75);margin:0 0 24px}
.toggle{display:inline-flex;background:rgba(255,255,255,.1);border-radius:999px;padding:5px;margin-bottom:22px}
.toggle button{border:0;background:none;color:rgba(255,255,255,.8);padding:9px 22px;border-radius:999px;
  cursor:pointer;font-family:var(--sans);font-weight:600;font-size:.9rem;transition:.2s}
.toggle button.active{background:#fff;color:var(--ink)}
.field{margin-bottom:16px}
.field label{display:block;font-size:.82rem;font-weight:600;margin-bottom:7px;color:rgba(255,255,255,.85)}
.field input,.field select,.field textarea{
  width:100%;padding:13px 15px;border-radius:12px;border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.08);color:#fff;font-family:var(--sans);font-size:.95rem;transition:.2s}
.field input::placeholder,.field textarea::placeholder{color:rgba(255,255,255,.45)}
.field input:focus,.field select:focus,.field textarea:focus{outline:0;border-color:var(--coral);
  background:rgba(255,255,255,.14)}
.field select option{color:#111}
.field textarea{resize:vertical;min-height:96px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-note{font-size:.78rem;color:rgba(255,255,255,.55);margin-top:14px}
.form-msg{margin-top:14px;padding:12px 16px;border-radius:12px;font-size:.9rem;display:none}
.form-msg.ok{display:block;background:rgba(198,255,94,.16);border:1px solid rgba(198,255,94,.45);color:#eaffc2}
.form-msg.err{display:block;background:rgba(244,90,90,.16);border:1px solid rgba(244,90,90,.5);color:#ffd4d4}

/* ---------- contact info cards ---------- */
.info-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.info-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.info-card .ico{width:48px;height:48px;border-radius:13px;background:rgba(255,90,60,.12);
  color:var(--coral-d);display:grid;place-items:center;font-size:1.3rem;margin-bottom:14px}
.info-card h4{margin:0 0 6px;font-size:1.05rem;font-family:var(--display)}
.info-card a,.info-card p{color:var(--muted);font-size:.95rem;margin:2px 0}
.info-card a:hover{color:var(--coral-d)}

/* ---------- map ---------- */
.map-frame{border-radius:26px;overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line)}
.map-frame iframe{width:100%;height:420px;border:0;display:block}

/* ---------- cta band ---------- */
.cta-band{background:linear-gradient(120deg,var(--coral),var(--coral-d));color:#fff;
  border-radius:32px;padding:56px;text-align:center;box-shadow:var(--shadow)}
.cta-band h2{font-size:clamp(1.8rem,3.2vw,2.6rem);margin-bottom:14px}
.cta-band p{color:rgba(255,255,255,.92);max-width:560px;margin:0 auto 26px}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.7);padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
.footer-grid h5{color:#fff;font-size:.82rem;letter-spacing:.12em;text-transform:uppercase;margin:0 0 16px}
.footer-grid a{display:block;color:rgba(255,255,255,.65);padding:5px 0;font-size:.94rem}
.footer-grid a:hover{color:var(--lime)}
.footer-brand{display:flex;align-items:center;gap:12px;color:#fff;margin-bottom:14px}
.footer-brand img{width:40px;height:40px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:44px;padding-top:22px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.85rem}

/* ---------- page hero (inner pages) — photo slideshow ---------- */
.page-hero{background:var(--ink);color:#fff;padding:150px 0 66px;position:relative;overflow:hidden;isolation:isolate}
.page-hero .hero-slide{animation-duration:28s}
.page-hero::before{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background:linear-gradient(115deg,rgba(14,10,8,.93) 0%,rgba(18,13,10,.84) 48%,rgba(20,15,10,.62) 100%)}
.page-hero::after{content:"";position:absolute;right:-80px;top:-80px;width:340px;height:340px;pointer-events:none;
  background:radial-gradient(circle,rgba(255,90,60,.28),transparent 70%)}
.page-hero h1{font-size:clamp(2.1rem,4.1vw,3.05rem);margin:14px 0 12px}
.page-hero p{color:rgba(255,255,255,.86);max-width:620px;font-size:1.06rem}
.breadcrumb{font-size:.85rem;color:rgba(255,255,255,.6)}
.breadcrumb a:hover{color:var(--lime)}

/* ---------- reveal animation ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:.7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media(max-width:900px){
  .nav-links{position:fixed;inset:64px 0 auto 0;flex-direction:column;background:rgba(20,21,26,.98);
    padding:20px;gap:4px;transform:translateY(-140%);transition:.3s;align-items:stretch}
  .nav-links.open{transform:none}
  .nav-links a{padding:14px 18px}
  .lang-switch{margin:10px auto;align-self:center}
  .nav-toggle{display:block}
  .split{grid-template-columns:1fr;gap:34px}
  .grid-3,.grid-2,.info-cards,.stats-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:600px){
  .section{padding:60px 0}
  .grid-3,.grid-2,.info-cards,.stats-grid,.row2,.footer-grid{grid-template-columns:1fr}
  .form-wrap,.cta-band{padding:30px}
  .hero-inner{padding:120px 0 70px}
}