:root{
  --bg:#0f1420;--surface:#fff;--ink:#1a2233;--muted:#66718a;
  --accent:#ffb400;--accent2:#ff8a00;--line:#e7ebf2;--dark:#111827;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Segoe UI',system-ui,Arial,sans-serif;color:var(--ink);background:#f5f7fb;line-height:1.6}
.container{max-width:1120px;margin:0 auto;padding:0 20px}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

/* nav */
.nav{position:sticky;top:0;z-index:50;background:rgba(15,20,32,.96);backdrop-filter:blur(6px);color:#fff}
.nav__row{display:flex;align-items:center;gap:20px;height:64px}
.brand{font-size:20px;font-weight:600;color:#fff}
.brand b{color:var(--accent)}
.nav__links{display:flex;gap:20px;margin-left:auto;font-size:15px}
.nav__links a{color:#cdd5e5}
.nav__links a:hover{color:var(--accent)}
.nav__phone{font-weight:700;color:var(--accent);white-space:nowrap}

/* hero */
.hero{background:linear-gradient(135deg,#0f1420,#1c2740);color:#fff;padding:64px 0}
.hero__grid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.badge{display:inline-block;background:rgba(255,180,0,.15);color:var(--accent);padding:5px 14px;border-radius:20px;font-size:13px;font-weight:600;margin-bottom:16px}
.hero h1{font-size:42px;line-height:1.15;margin-bottom:16px}
.hero__lead{color:#c3cbdc;font-size:17px;max-width:560px;margin-bottom:24px}
.hero__cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:28px}
.hero__facts{display:flex;gap:28px;list-style:none;flex-wrap:wrap}
.hero__facts li{color:#c3cbdc;font-size:14px}
.hero__facts b{display:block;font-size:26px;color:var(--accent)}
.hero__img img{border-radius:18px;box-shadow:0 20px 60px rgba(0,0,0,.4);aspect-ratio:4/5;object-fit:cover;width:100%}

/* buttons */
.btn{display:inline-block;padding:13px 26px;border-radius:10px;font-weight:600;font-size:15px;cursor:pointer;border:none;transition:.2s}
.btn--primary{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#1a1a1a}
.btn--primary:hover{filter:brightness(1.05);transform:translateY(-1px)}
.btn--ghost{background:transparent;border:1.5px solid rgba(255,255,255,.4);color:#fff}
.btn--ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn--block{width:100%;text-align:center}

/* sections */
.section{padding:64px 0}
.section--alt{background:#fff}
.section--dark{background:linear-gradient(135deg,#0f1420,#1c2740);color:#fff}
.section__title{font-size:32px;margin-bottom:12px}
.section__sub{color:var(--muted);max-width:640px;margin-bottom:32px}
.section--dark .section__sub{color:#c3cbdc}

/* cards */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px 22px;transition:.2s}
.card:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(15,20,32,.1)}
.card__icon{font-size:34px;margin-bottom:12px}
.card h3{font-size:18px;margin-bottom:8px}
.card p{color:var(--muted);font-size:14px}

/* why */
.why{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.why__item{background:#f7f9fc;border-radius:14px;padding:28px 24px;position:relative}
.why__num{font-size:40px;font-weight:800;color:var(--accent);opacity:.4}
.why__item h3{margin:8px 0}
.why__item p{color:var(--muted);font-size:15px}

/* price */
.price{background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 26px}
.price__row{display:flex;align-items:baseline;gap:10px;padding:14px 0;border-bottom:1px dashed var(--line)}
.price__row:last-child{border-bottom:none}
.price__name{font-weight:500}
.price__dots{flex:1;border-bottom:2px dotted #cfd6e2;transform:translateY(-4px)}
.price__val{font-weight:700;color:var(--accent2);white-space:nowrap}
.price__cta{margin-top:26px;text-align:center}

/* reviews */
.reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.review{background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px}
.review__stars{color:var(--accent);letter-spacing:2px;margin-bottom:10px}
.review__text{font-style:italic;color:var(--ink);margin-bottom:16px}
.review__who b{display:block}
.review__who span{color:var(--muted);font-size:13px}

/* gallery */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.gallery__item{border-radius:14px;overflow:hidden;position:relative;background:#e7ebf2}
.gallery__item img{aspect-ratio:4/3;object-fit:cover;width:100%;transition:.3s}
.gallery__item:hover img{transform:scale(1.05)}
.gallery__item figcaption{position:absolute;left:0;right:0;bottom:0;background:linear-gradient(transparent,rgba(0,0,0,.75));color:#fff;padding:24px 14px 12px;font-size:13px}

/* contacts */
.contacts{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.contacts__list{list-style:none;margin-top:18px;display:grid;gap:12px;font-size:17px}
.contacts__list a{color:var(--accent)}
.contacts__form{background:#fff;color:var(--ink);border-radius:16px;padding:28px}
.form{display:grid;gap:14px}
.form label{display:grid;gap:6px;font-size:14px;font-weight:600}
.form input,.form textarea{width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:10px;font:inherit;font-weight:400}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--accent)}
.form__note{font-size:12px;color:var(--muted);font-weight:400}
.alert{padding:14px 16px;border-radius:10px;font-size:15px}
.alert--ok{background:#e7f8ec;color:#1c7a3d}
.alert--err{background:#fdecec;color:#c0392b}

/* footer */
.footer{background:#0b0f19;color:#8b95ab;padding:24px 0;font-size:14px}
.footer__row{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}

@media(max-width:900px){
  .hero__grid{grid-template-columns:1fr}
  .hero__img{order:-1;max-width:340px}
  .cards{grid-template-columns:repeat(2,1fr)}
  .why,.reviews,.gallery{grid-template-columns:1fr 1fr}
  .contacts{grid-template-columns:1fr}
  .nav__links{display:none}
}
@media(max-width:560px){
  .hero h1{font-size:30px}
  .cards,.why,.reviews,.gallery{grid-template-columns:1fr}
  .section__title{font-size:26px}
}