:root {
    --bg:        #0a0a0b;
    --bg-soft:   #101012;
    --card:      #131316;
    --card-hover:#17171b;
    --border:    rgba(255,255,255,0.08);
    --border-2:  rgba(255,255,255,0.14);
    --text:      #f4f4f5;
    --muted:     #a1a1aa;
    --muted-2:   #6b6b73;
    --accent:    #ff5a1f;
    --accent-2:  #ff7a3c;
    --accent-glow: rgba(255,90,31,0.35);
    --radius:    18px;
    --radius-sm: 12px;
    --maxw:      1180px;
    --ease:      cubic-bezier(.22,.61,.36,1);
}

* { margin:0; padding:0; box-sizing:border-box; }

html { scroll-behavior:smooth; }

body {
    font-family:'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background:var(--bg);
    color:var(--text);
    line-height:1.6;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
}

body.no-scroll { overflow:hidden; }

a { color:inherit; text-decoration:none; }
ul { list-style:none; }
button { font-family:inherit; cursor:pointer; border:none; background:none; color:inherit; }

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

.accent { color:var(--accent); }

/* ---------- КНОПКИ ---------- */
.btn {
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    padding:12px 24px;
    border-radius:100px;
    font-size:15px;
    font-weight:600;
    letter-spacing:.01em;
    transition:transform .25s var(--ease), background .25s var(--ease),
               box-shadow .25s var(--ease), border-color .25s var(--ease), color .25s;
    white-space:nowrap;
}
.btn:active { transform:scale(.97); }

.btn--primary {
    background:var(--accent);
    color:#fff;
    box-shadow:0 8px 30px -8px var(--accent-glow);
}
.btn--primary:hover {
    background:var(--accent-2);
    box-shadow:0 12px 40px -6px var(--accent-glow);
    transform:translateY(-2px);
}

.btn--ghost {
    background:transparent;
    color:var(--text);
    border:1px solid var(--border-2);
}
.btn--ghost:hover {
    background:rgba(255,255,255,0.05);
    border-color:rgba(255,255,255,0.28);
    transform:translateY(-2px);
}

.btn--lg { padding:16px 34px; font-size:16px; }
.btn--block { width:100%; }

/* ---------- ШАПКА ---------- */
.header {
    position:fixed;
    top:0; left:0; right:0;
    z-index:100;
    padding:18px 0;
    transition:background .3s var(--ease), border-color .3s, padding .3s var(--ease);
    border-bottom:1px solid transparent;
}
.header.scrolled {
    background:rgba(10,10,11,0.72);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-bottom:1px solid var(--border);
    padding:12px 0;
}
.header__inner {
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:24px;
}
.logo {
    font-size:24px;
    font-weight:800;
    letter-spacing:.02em;
}
.logo__dot { color:var(--accent); }

.nav { display:flex; gap:32px; }
.nav__link {
    font-size:15px;
    color:var(--muted);
    font-weight:500;
    transition:color .2s;
    position:relative;
}
.nav__link:hover { color:var(--text); }

.header__cta { padding:10px 22px; }

.burger { display:none; flex-direction:column; gap:5px; padding:6px; }
.burger span {
    width:24px; height:2px; background:var(--text); border-radius:2px;
    transition:transform .3s var(--ease), opacity .3s;
}
.burger.open span:nth-child(1) { transform:translateY(7px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity:0; }
.burger.open span:nth-child(3) { transform:translateY(-7px) rotate(-45deg); }

/* ---------- HERO ---------- */
.hero {
    position:relative;
    min-height:100vh;
    display:flex;
    align-items:center;
    overflow:hidden;
    padding:120px 0 80px;
}
.hero__bg {
    position:absolute;
    inset:0;
    background:
        radial-gradient(120% 90% at 60% 10%, #1a1a22 0%, #0a0a0b 60%),
        url('images/everest.jpg.png') center 30% / cover no-repeat;
    background-blend-mode:screen, normal;
    z-index:0;
    animation:heroZoom 24s ease-in-out infinite alternate;
}
@keyframes heroZoom { from { transform:scale(1);} to { transform:scale(1.08);} }

.hero__overlay {
    position:absolute;
    inset:0;
    z-index:1;
    background:
        linear-gradient(180deg, rgba(10,10,11,.55) 0%, rgba(10,10,11,.25) 40%, rgba(10,10,11,.85) 88%, var(--bg) 100%),
        linear-gradient(90deg, rgba(10,10,11,.7) 0%, rgba(10,10,11,0) 55%);
}
.hero__content { position:relative; z-index:2; max-width:860px; }

.hero__tag {
    display:inline-block;
    padding:8px 16px;
    border:1px solid var(--border-2);
    border-radius:100px;
    font-size:13px;
    font-weight:500;
    color:var(--muted);
    letter-spacing:.04em;
    text-transform:uppercase;
    margin-bottom:28px;
    background:rgba(255,255,255,0.03);
    backdrop-filter:blur(6px);
}
.hero__title {
    font-size:clamp(44px, 6.5vw, 108px);
    line-height:1.02;
    font-weight:800;
    letter-spacing:-.02em;
    margin-bottom:26px;
}
.hero__subtitle {
    font-size:clamp(16px, 1.6vw, 21px);
    color:var(--muted);
    max-width:620px;
    margin-bottom:38px;
}
.hero__actions { display:flex; gap:16px; flex-wrap:wrap; margin-bottom:64px; }

.hero__stats { display:flex; gap:48px; flex-wrap:wrap; }
.stat__num {
    font-size:clamp(24px, 4vw, 34px);
    font-weight:700;
    color:var(--text);
    line-height:1.1;
}
.stat__label { font-size:14px; color:var(--muted-2); margin-top:2px; }

.hero__scroll {
    position:absolute;
    bottom:32px; left:50%;
    transform:translateX(-50%);
    z-index:2;
    width:26px; height:42px;
    border:2px solid var(--border-2);
    border-radius:100px;
    display:flex; justify-content:center;
    padding-top:8px;
}
.hero__scroll span {
    width:4px; height:8px; border-radius:4px; background:var(--accent);
    animation:scrollDot 1.6s var(--ease) infinite;
}
@keyframes scrollDot { 0%{opacity:0;transform:translateY(-4px);} 40%{opacity:1;} 80%,100%{opacity:0;transform:translateY(12px);} }

/* ---------- СЕКЦИИ ---------- */
.section { padding:110px 0; position:relative; }
.services { background:var(--bg); }
.pricing  { background:linear-gradient(180deg, var(--bg) 0%, var(--bg-soft) 100%); overflow:hidden; }
.pricing__stars { position:absolute; inset:0; z-index:0; pointer-events:none; }
.pricing .container { position:relative; z-index:1; }
.faq      { background:var(--bg-soft); }

.section__head { max-width:640px; margin:0 auto 64px; text-align:center; }
.section__eyebrow {
    display:inline-block;
    font-size:13px;
    font-weight:600;
    letter-spacing:.14em;
    text-transform:uppercase;
    color:var(--accent);
    margin-bottom:18px;
}
.section__title {
    font-size:clamp(30px, 5vw, 52px);
    font-weight:800;
    line-height:1.08;
    letter-spacing:-.02em;
    margin-bottom:20px;
}
.section__lead { font-size:17px; color:var(--muted); }

/* ---------- КАРТОЧКИ ---------- */
.card {
    background:var(--card);
    border:1px solid var(--border);
    border-radius:var(--radius);
    transition:transform .35s var(--ease), border-color .35s, background .35s, box-shadow .35s;
}

.services__grid {
    display:grid;
    grid-template-columns:repeat(3, 1fr);
    gap:20px;
}
.service { padding:34px 30px; }
.service:hover {
    transform:translateY(-6px);
    border-color:var(--border-2);
    background:var(--card-hover);
    box-shadow:0 24px 60px -30px rgba(0,0,0,.8);
}
.service__icon {
    width:52px; height:52px;
    display:flex; align-items:center; justify-content:center;
    border-radius:14px;
    background:rgba(255,90,31,0.12);
    color:var(--accent);
    font-size:22px;
    margin-bottom:22px;
}
.service__title { font-size:20px; font-weight:700; margin-bottom:12px; }
.service__text { font-size:15px; color:var(--muted); }

/* ---------- ТАРИФЫ ---------- */
.pricing__grid {
    display:grid;
    grid-template-columns:repeat(3, 1fr);
    gap:20px;
    align-items:stretch;
}
.plan {
    padding:38px 32px;
    display:flex;
    flex-direction:column;
    position:relative;
}
.plan:hover { transform:translateY(-6px); border-color:var(--border-2); }
.plan--featured {
    border-color:rgba(255,90,31,0.5);
    background:linear-gradient(180deg, rgba(255,90,31,0.08) 0%, var(--card) 45%);
    box-shadow:0 30px 80px -40px var(--accent-glow);
}
.plan--featured:hover { border-color:var(--accent); }
.plan__badge {
    position:absolute;
    top:22px; right:24px;
    padding:5px 14px;
    background:var(--accent);
    color:#fff;
    font-size:12px;
    font-weight:700;
    border-radius:100px;
    letter-spacing:.03em;
}
.plan__icon {
    width:52px; height:52px;
    display:flex; align-items:center; justify-content:center;
    border-radius:14px;
    background:rgba(255,255,255,0.06);
    color:var(--text);
    font-size:22px;
    margin-bottom:22px;
}
.plan__icon--accent { background:var(--accent); color:#fff; box-shadow:0 8px 24px -6px var(--accent-glow); }
.plan__name { font-size:22px; font-weight:700; margin-bottom:8px; }
.plan__for { font-size:14px; color:var(--muted); min-height:42px; margin-bottom:18px; }
.plan__price { margin-bottom:26px; }
.plan__amount { font-size:38px; font-weight:800; letter-spacing:-.02em; }
.plan__features { display:flex; flex-direction:column; gap:13px; margin-bottom:30px; flex-grow:1; }
.plan__features li {
    position:relative;
    padding-left:28px;
    font-size:15px;
    color:var(--muted);
}
.plan__features li::before {
    content:'✓';
    position:absolute; left:0; top:0;
    color:var(--accent);
    font-weight:700;
}

/* ---------- FAQ ---------- */
.faq__list { max-width:820px; margin:0 auto; }
.faq__item { border-bottom:1px solid var(--border); }
.faq__q {
    width:100%;
    text-align:left;
    padding:26px 0;
    font-size:clamp(17px, 2.4vw, 21px);
    font-weight:600;
    color:var(--text);
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:20px;
    transition:color .2s;
}
.faq__q:hover { color:var(--accent); }
.faq__icon {
    flex-shrink:0;
    font-size:26px;
    font-weight:300;
    color:var(--accent);
    transition:transform .3s var(--ease);
    line-height:1;
}
.faq__item.open .faq__icon { transform:rotate(45deg); }
.faq__a {
    max-height:0;
    overflow:hidden;
    transition:max-height .4s var(--ease);
}
.faq__a p {
    padding-bottom:26px;
    color:var(--muted);
    font-size:16px;
    max-width:680px;
}

/* ---------- CTA ---------- */
.cta { background:var(--bg); padding:120px 0; }
.cta__inner {
    max-width:720px;
    margin:0 auto;
    text-align:center;
    background:linear-gradient(180deg, var(--card) 0%, var(--bg-soft) 100%);
    border:1px solid var(--border);
    border-radius:28px;
    padding:64px 40px;
    position:relative;
    overflow:hidden;
}
.cta__inner::before {
    content:'';
    position:absolute;
    top:-50%; left:50%;
    transform:translateX(-50%);
    width:420px; height:420px;
    background:radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    opacity:.5;
    pointer-events:none;
}
.cta__title { font-size:clamp(28px,5vw,46px); font-weight:800; margin-bottom:18px; position:relative; }
.cta__text { font-size:17px; color:var(--muted); margin-bottom:34px; position:relative; }

/* ---------- ПОДВАЛ ---------- */
.footer { background:var(--bg-soft); border-top:1px solid var(--border); padding:56px 0 30px; }
.footer__inner {
    display:flex;
    align-items:flex-start;
    justify-content:space-between;
    gap:32px;
    flex-wrap:wrap;
    padding-bottom:36px;
    border-bottom:1px solid var(--border);
}
.footer__tagline { color:var(--muted); font-size:15px; margin-top:10px; }
.footer__nav { display:flex; gap:28px; flex-wrap:wrap; }
.footer__link { color:var(--muted); font-size:15px; transition:color .2s; }
.footer__link:hover { color:var(--text); }
.footer__link--btn { color:var(--accent); font-weight:600; }
.footer__bottom { padding-top:26px; color:var(--muted-2); font-size:14px; }

/* ---------- МОДАЛКИ ---------- */
.modal {
    position:fixed;
    inset:0;
    z-index:200;
    display:none;
    align-items:center;
    justify-content:center;
    padding:24px;
}
.modal.open { display:flex; }
.modal__backdrop {
    position:absolute;
    inset:0;
    background:rgba(5,5,6,0.72);
    backdrop-filter:blur(6px);
    -webkit-backdrop-filter:blur(6px);
    animation:fadeIn .3s var(--ease);
}
.modal__dialog {
    position:relative;
    width:100%;
    max-width:520px;
    max-height:90vh;
    overflow-y:auto;
    background:var(--card);
    border:1px solid var(--border-2);
    border-radius:22px;
    padding:40px;
    animation:modalIn .4s var(--ease);
    box-shadow:0 40px 100px -30px rgba(0,0,0,.9);
}
.modal__dialog--success { text-align:center; max-width:460px; }
@keyframes fadeIn { from{opacity:0;} to{opacity:1;} }
@keyframes modalIn { from{opacity:0; transform:translateY(24px) scale(.97);} to{opacity:1; transform:none;} }

.modal__close {
    position:absolute;
    top:18px; right:20px;
    width:36px; height:36px;
    border-radius:10px;
    font-size:26px;
    color:var(--muted);
    display:flex; align-items:center; justify-content:center;
    transition:background .2s, color .2s;
    line-height:1;
}
.modal__close:hover { background:rgba(255,255,255,0.06); color:var(--text); }
.modal__title { font-size:26px; font-weight:800; margin-bottom:8px; }
.modal__subtitle { font-size:15px; color:var(--muted); margin-bottom:28px; }

/* ---------- ФОРМА ---------- */
.form__row { margin-bottom:18px; }
.form__label {
    display:block;
    font-size:14px;
    font-weight:500;
    color:var(--muted);
}
.form__label span { color:var(--accent); }
.form__input {
    width:100%;
    margin-top:8px;
    padding:13px 16px;
    background:var(--bg-soft);
    border:1px solid var(--border);
    border-radius:var(--radius-sm);
    color:var(--text);
    font-size:15px;
    font-family:inherit;
    transition:border-color .2s, background .2s;
}
.form__input::placeholder { color:var(--muted-2); }
.form__input:focus {
    outline:none;
    border-color:var(--accent);
    background:#0d0d10;
}
.form__input.invalid { border-color:#ef4444; }
.form__textarea { min-height:88px; resize:vertical; }
select.form__input { appearance:none; cursor:pointer; }
.form__note { font-size:12px; color:var(--muted-2); text-align:center; margin-top:14px; }

.success__icon {
    width:72px; height:72px;
    margin:0 auto 22px;
    border-radius:50%;
    background:rgba(255,90,31,0.14);
    color:var(--accent);
    display:flex; align-items:center; justify-content:center;
    font-size:36px;
    animation:pop .5s var(--ease);
}
@keyframes pop { 0%{transform:scale(0);} 60%{transform:scale(1.15);} 100%{transform:scale(1);} }

/* ---------- REVEAL-АНИМАЦИИ ---------- */
/* Скрываем только если работает JS — иначе контент всегда виден */
.js .reveal { opacity:0; transform:translateY(26px); transition:opacity .7s var(--ease), transform .7s var(--ease); }
.js .reveal.visible { opacity:1; transform:none; }
@media (prefers-reduced-motion: reduce) {
    .js .reveal { opacity:1; transform:none; transition:none; }
}

/* ---------- АДАПТИВ ---------- */
@media (max-width:900px) {
    .services__grid { grid-template-columns:repeat(2, 1fr); }
    .pricing__grid { grid-template-columns:1fr; max-width:460px; margin:0 auto; }
    .plan--featured { order:-1; }
}

@media (max-width:760px) {
    .nav {
        position:fixed;
        top:0; right:0;
        height:100vh;
        width:min(78vw, 320px);
        background:var(--bg-soft);
        border-left:1px solid var(--border);
        flex-direction:column;
        justify-content:center;
        gap:28px;
        padding:40px;
        transform:translateX(100%);
        transition:transform .4s var(--ease);
        z-index:99;
    }
    .nav.open { transform:none; }
    .nav__link { font-size:20px; }
    .burger { display:flex; z-index:101; }
    .header__cta { display:none; }
    .hero__stats { gap:28px; }
    .stat { flex:1 1 40%; }
    .section { padding:80px 0; }
    .cta { padding:80px 0; }
    .cta__inner { padding:48px 24px; }
    .modal__dialog { padding:30px 22px; }
    .footer__inner { flex-direction:column; }
}

@media (max-width:520px) {
    .services__grid { grid-template-columns:1fr; }
    .container { padding:0 18px; }
    .hero__actions .btn { flex:1 1 100%; }
}