/* ===== Base / Tokens ===== */
:root{
  --bg:#f8fafc; --bg2:#eef2ff; --surface:#ffffff;
  --text:#1e293b; --muted:#64748b;
  --blue:#2563eb; --pink:#f43f5e; --teal:#10b981; --amber:#f59e0b;
  --ring:0 0 0 3px rgba(37,99,235,.25);
  --shadow:0 10px 30px rgba(2,6,23,.06);
  --radius:16px; --radius-sm:12px; --max:1140px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0; font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial;
  color:var(--text);
  background:linear-gradient(180deg,var(--bg),var(--bg2));
  -webkit-font-smoothing:antialiased; -moz-osx-font-smoothing:grayscale;
}
a{color:var(--blue);text-decoration:none} a:hover{text-decoration:underline}
.container{max-width:var(--max);margin:0 auto;padding:0 20px}
ul{margin:0;padding:0}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:12px 16px;border-radius:12px;font-weight:700;border:1px solid transparent;
  box-shadow:0 6px 14px rgba(37,99,235,.18);
}
.btn:focus-visible{outline:none;box-shadow:var(--ring)}
.btn--primary{background:linear-gradient(135deg,var(--blue),#60a5fa);color:#fff}
.btn--ghost{background:#fff;border:1px solid rgba(2,6,23,.08);color:var(--text)}
.btn--lg{padding:14px 20px;font-size:18px}
.btn--full{width:100%}

/* ===== Nav ===== */
.nav{position:sticky;top:0;z-index:40;background:#ffffffcc;backdrop-filter:blur(10px);border-bottom:1px solid rgba(2,6,23,.06)}
.nav__inner{display:flex;align-items:center;justify-content:space-between;min-height:64px}
.brand{display:flex;gap:10px;align-items:center;font-weight:800;color:var(--text)}
.brand__bolt{font-size:20px}
.nav__links{display:flex;gap:16px;align-items:center}
.nav__links a{color:var(--text);font-weight:600} .nav__links a:hover{color:var(--blue)}
.lang-switch{display:flex;gap:6px;margin-left:8px}
.lang-switch button{
  font:inherit;border:1px solid rgba(2,6,23,.1);background:#fff;color:var(--text);
  padding:6px 8px;border-radius:8px;cursor:pointer
}
.lang-switch button.active{background:#e0ecff;border-color:#c7dbff}

/* ===== Hero ===== */
.hero{padding:64px 0}
.hero__grid{display:grid;grid-template-columns:1.2fr 1fr;gap:36px;align-items:center}
.hero__copy h1{font-size:clamp(36px,5vw,56px);margin:0 0 10px;font-weight:800}
.lead{font-size:18px;color:#334155;margin:0 0 18px}
.hero__cta{display:flex;gap:12px;flex-wrap:wrap;margin:18px 0}
.bullets{list-style:none;color:var(--muted)} .bullets li{margin:6px 0}

/* viz */
.hero__viz{position:relative}
.stat{background:#fff;border:1px solid rgba(2,6,23,.06);border-radius:16px;padding:18px;box-shadow:var(--shadow);max-width:240px;margin:0 0 16px}
.stat__value{font-size:34px;font-weight:800;color:var(--blue)}
.stat__label{color:var(--muted);font-weight:600}
.chat{background:#fff;border:1px solid rgba(2,6,23,.06);border-radius:16px;padding:16px;box-shadow:var(--shadow)}
.bubble{border-radius:16px;padding:10px 12px;margin:8px 0;display:inline-block;max-width:100%}
.bubble--in{background:rgba(37,99,235,.12);color:#1e40af}
.bubble--out{background:rgba(244,63,94,.12);color:#9f1239}

/* ===== Sections / Cards ===== */
.section{padding:72px 0}
.section--surface{background:linear-gradient(180deg,#ffffff,#f1f5f9)}
.section__title{margin:0 0 8px;font-size:clamp(26px,4vw,40px);font-weight:800}
.muted{color:var(--muted)} .small{font-size:14px} .tiny{font-size:12px}
.grid{display:grid;gap:18px}
.grid--2{grid-template-columns:repeat(2,1fr)}
.grid--3{grid-template-columns:repeat(3,1fr)}
.card{background:var(--surface);border:1px solid rgba(2,6,23,.06);border-radius:12px;padding:20px;box-shadow:var(--shadow)}
.card h3{margin:0 0 8px}

/* ===== Commitments ===== */
.list{list-style:none}
.list--commitments{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.list--commitments li{display:flex;gap:12px;align-items:flex-start;background:#fff;border:1px solid rgba(2,6,23,.06);border-radius:12px;padding:16px;box-shadow:var(--shadow)}
.list--commitments .icon,.commit-icon{font-size:22px;line-height:1}

/* ===== Stats strip ===== */
.stats{padding:40px 0;background:linear-gradient(90deg,#dbeafe,#fce7f3)}
.stats__row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.stats__item{text-align:center;background:#ffffffaa;border:1px solid rgba(2,6,23,.06);border-radius:12px;padding:14px}
.stats__value{font-weight:800;font-size:28px;color:#1e40af}
.stats__label{color:#334155}

/* ===== Accordion ===== */
.accordion{max-width:900px;margin:18px auto 0}
.acc{background:#fff;border:1px solid rgba(2,6,23,.08);border-radius:12px;margin:10px 0;box-shadow:var(--shadow)}
.acc__btn{width:100%;text-align:left;background:transparent;border:0;display:flex;justify-content:space-between;align-items:center;padding:14px 16px;font-weight:700;color:var(--text);cursor:pointer}
.acc__btn:focus-visible{outline:none;box-shadow:var(--ring)}
.acc__panel{display:none;padding:0 16px 16px;color:#334155}
.acc__btn[aria-expanded="true"] + .acc__panel{display:block}
.chev{opacity:.6}

/* ===== Booking ===== */
.booking .form{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:12px 0}
.booking .form .full{grid-column:1/-1}
label span{display:block;font-weight:600;margin:0 0 6px}
input,textarea{width:100%;padding:12px;border-radius:10px;border:1px solid rgba(2,6,23,.12);background:#fff;color:var(--text)}
input:focus-visible,textarea:focus-visible{outline:none;box-shadow:var(--ring)}
.status{min-height:22px;margin-top:8px}
.status.success{color:#065f46} .status.error{color:#991b1b}

/* ===== Footer ===== */
.footer{padding:40px 0 56px;border-top:1px solid rgba(2,6,23,.08);background:#f8fafc}
.footer__inner{display:flex;align-items:center;justify-content:space-between;gap:16px}
.footer__links{display:flex;gap:14px;align-items:center;flex-wrap:wrap}

/* ===== Responsive ===== */
@media (max-width:1020px){
  .hero__grid{grid-template-columns:1fr}
  .grid--3{grid-template-columns:repeat(2,1fr)}
  .list--commitments{grid-template-columns:1fr}
  .stats__row{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:640px){
  .nav__links{gap:10px}
  .grid--2,.grid--3{grid-template-columns:1fr}
  .booking .form{grid-template-columns:1fr}
  .btn--lg{font-size:16px}
}