/* =========================================
   ДОНТОК — Industrial / Energy / Engineering
   ========================================= */

:root{
    --c-bg: #ffffff;
    --c-bg-alt: #F4F6FA;
    --c-dark: #0B2545;
    --c-dark-2: #102A53;
    --c-graphite: #1E2431;
    --c-graphite-2: #2A3242;
    --c-text: #1A2233;
    --c-muted: #5B6578;
    --c-line: #E3E7EF;
    --c-accent: #FF6B1A;
    --c-accent-2: #FF8A3D;
    --c-ok: #16A34A;
    --c-err: #DC2626;

    --f-sans: 'Manrope', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
    --f-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

    --r-sm: 6px;
    --r-md: 12px;
    --r-lg: 18px;

    --shadow-sm: 0 1px 2px rgba(11,37,69,.06), 0 2px 6px rgba(11,37,69,.04);
    --shadow-md: 0 10px 30px rgba(11,37,69,.10);
    --shadow-lg: 0 30px 60px rgba(11,37,69,.18);

    --container: 1240px;
    --t: .3s cubic-bezier(.2,.7,.2,1);
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
html{scroll-behavior:smooth}
body{
    font-family:var(--f-sans);
    color:var(--c-text);
    background:var(--c-bg);
    line-height:1.55;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--t)}
button{font:inherit;cursor:pointer;border:0;background:transparent;color:inherit}
ul,ol{list-style:none;margin:0;padding:0}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.15}
h1{font-size:clamp(2rem, 4.6vw, 3.6rem)}
h2{font-size:clamp(1.7rem, 3.4vw, 2.6rem)}
h3{font-size:clamp(1.2rem, 2vw, 1.5rem)}
h4{font-size:1.05rem;font-weight:700}
p{margin:0 0 .6em}

.container{max-width:var(--container);margin:0 auto;padding:0 20px}
.req{color:var(--c-accent)}

/* ============ BUTTONS ============ */
.btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:12px 22px;border-radius:var(--r-sm);
    font-weight:700;font-size:.95rem;letter-spacing:.01em;
    transition:transform var(--t), background var(--t), color var(--t), box-shadow var(--t), border-color var(--t);
    border:1px solid transparent;white-space:nowrap;
}
.btn--sm{padding:9px 16px;font-size:.85rem}
.btn--lg{padding:15px 28px;font-size:1rem}
.btn--primary{background:var(--c-accent);color:#fff;box-shadow:0 8px 20px rgba(255,107,26,.28)}
.btn--primary:hover{background:var(--c-accent-2);transform:translateY(-1px)}
.btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.35)}
.btn--ghost:hover{background:rgba(255,255,255,.08);border-color:#fff}
.btn--outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.btn--outline:hover{background:#fff;color:var(--c-dark)}
.section--alt .btn--ghost,
.section--alt .btn--outline,
.section .btn--ghost,
.section .btn--outline{color:var(--c-dark);border-color:var(--c-line)}
.section .btn--ghost:hover,
.section .btn--outline:hover{background:var(--c-dark);color:#fff;border-color:var(--c-dark)}

/* ============ HEADER ============ */
.header{
    position:sticky;top:0;z-index:50;
    background:rgba(255,255,255,.85);
    backdrop-filter:saturate(180%) blur(12px);
    -webkit-backdrop-filter:saturate(180%) blur(12px);
    border-bottom:1px solid var(--c-line);
}
.header__inner{display:flex;align-items:center;gap:24px;height:72px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.02em}
.logo__mark{
    width:36px;height:36px;border-radius:8px;
    background:var(--c-dark);color:#fff;
    display:grid;place-items:center;font-weight:800;
    box-shadow:inset 0 0 0 2px var(--c-accent);
}
.logo__text{font-size:1.05rem;color:var(--c-dark)}

.nav{margin-left:auto}
.nav__list{display:flex;gap:22px}
.nav__list a{font-size:.92rem;font-weight:600;color:#2a3550;position:relative;padding:6px 0}
.nav__list a::after{
    content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
    background:var(--c-accent);transform:scaleX(0);transform-origin:left;transition:transform var(--t);
}
.nav__list a:hover{color:var(--c-dark)}
.nav__list a:hover::after{transform:scaleX(1)}

.header__actions{display:flex;align-items:center;gap:14px}
.header__phone{
    display:inline-flex;align-items:center;gap:8px;
    font-weight:700;color:var(--c-dark);
}
.header__phone:hover{color:var(--c-accent)}

.burger{display:none;width:40px;height:40px;border-radius:8px;background:var(--c-dark);position:relative}
.burger span{position:absolute;left:10px;right:10px;height:2px;background:#fff;transition:var(--t)}
.burger span:nth-child(1){top:13px}
.burger span:nth-child(2){top:19px}
.burger span:nth-child(3){top:25px}
.burger[aria-expanded="true"] span:nth-child(1){top:19px;transform:rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){top:19px;transform:rotate(-45deg)}

/* ============ HERO ============ */
.hero{
    position:relative;overflow:hidden;
    background:
        radial-gradient(1200px 600px at 85% -10%, rgba(255,107,26,.18), transparent 60%),
        radial-gradient(900px 500px at -10% 110%, rgba(16,42,83,.9), transparent 60%),
        linear-gradient(135deg, #0B2545 0%, #102A53 55%, #14326A 100%);
    color:#fff;
    padding:80px 0 100px;
}
.hero__bg{position:absolute;inset:0;pointer-events:none;opacity:.35}
.grid-lines{
    position:absolute;inset:0;
    background-image:
        linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px);
    background-size:60px 60px;
    mask-image:radial-gradient(ellipse at 70% 30%, #000 30%, transparent 75%);
    -webkit-mask-image:radial-gradient(ellipse at 70% 30%, #000 30%, transparent 75%);
}
.hero__inner{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;position:relative}
.hero__badge{
    display:inline-block;padding:8px 14px;border-radius:999px;
    background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
    font-size:.82rem;font-weight:600;letter-spacing:.02em;margin-bottom:22px;
}
.hero__title{color:#fff;margin-bottom:18px}
.hero__title span{color:var(--c-accent)}
.hero__subtitle{font-size:1.15rem;color:#dbe4f4;max-width:620px;margin-bottom:10px}
.hero__lead{color:#a9b7d1;margin-bottom:28px;max-width:620px}
.hero__cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:36px}
.hero__meta{display:flex;gap:28px;flex-wrap:wrap}
.hero__meta li{font-size:.9rem;color:#c7d2e6;border-left:2px solid var(--c-accent);padding-left:12px}
.hero__meta span{display:block;font-size:1.4rem;font-weight:800;color:#fff;font-family:var(--f-mono)}

.hero__visual{position:relative;height:460px}
.hero__card{
    position:absolute;border-radius:var(--r-md);overflow:hidden;
    box-shadow:var(--shadow-lg);
    border:1px solid rgba(255,255,255,.12);
    transition:transform var(--t);
}
.hero__card:hover{transform:translateY(-4px)}
.hero__img{width:100%;height:100%;background-size:cover;background-position:center}
.hero__label{
    position:absolute;left:12px;bottom:12px;
    background:rgba(11,37,69,.8);color:#fff;
    padding:6px 12px;border-radius:6px;font-size:.8rem;font-weight:600;
    border:1px solid rgba(255,255,255,.15);
}
.hero__card--1{left:0;top:0;width:62%;height:58%}
.hero__card--2{right:0;top:10%;width:52%;height:46%}
.hero__card--3{left:8%;bottom:0;width:70%;height:40%}

/* ============ SECTIONS ============ */
.section{padding:90px 0;position:relative}
.section--alt{background:var(--c-bg-alt)}
.section--dark{background:var(--c-dark);color:#fff}
.section--dark .section__title{color:#fff}
.section--dark .section__lead{color:#b8c4dc}

.section__head{max-width:820px;margin:0 auto 48px;text-align:center}
.section__eyebrow{
    display:inline-block;font-family:var(--f-mono);font-size:.78rem;letter-spacing:.18em;
    color:var(--c-accent);text-transform:uppercase;margin-bottom:14px;font-weight:500;
}
.section__eyebrow--light{color:#ff9a5a}
.section__title{margin-bottom:14px}
.section__lead{color:var(--c-muted);font-size:1.05rem}

/* ============ GENERATORS ============ */
.gen-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.gen-card{
    background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
    padding:30px;position:relative;overflow:hidden;
    transition:transform var(--t), box-shadow var(--t), border-color var(--t);
}
.gen-card::before{
    content:"";position:absolute;inset:auto -40% -60% auto;width:260px;height:260px;
    background:radial-gradient(closest-side, rgba(255,107,26,.18), transparent 70%);
    transition:transform var(--t);
}
.gen-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#d6dcec}
.gen-card--dark{background:linear-gradient(160deg, #0B2545, #102A53);color:#fff;border-color:#1b3a72}
.gen-card--dark::before{background:radial-gradient(closest-side, rgba(255,107,26,.35), transparent 70%)}
.gen-card--dark h3{color:#fff}
.gen-card--dark p{color:#c7d2e6}
.gen-card--dark .gen-card__list li{color:#dbe4f4;border-color:rgba(255,255,255,.12)}
.gen-card__icon{width:54px;height:54px;border-radius:12px;background:rgba(255,107,26,.12);color:var(--c-accent);display:grid;place-items:center;margin-bottom:18px}
.gen-card--dark .gen-card__icon{background:rgba(255,107,26,.2)}
.gen-card h3{margin-bottom:10px}
.gen-card p{color:var(--c-muted);margin-bottom:16px}
.gen-card__list{margin:0 0 22px}
.gen-card__list li{padding:8px 0 8px 22px;position:relative;font-size:.92rem;border-top:1px dashed var(--c-line);color:#39445c}
.gen-card__list li:first-child{border-top:0}
.gen-card__list li::before{content:"";position:absolute;left:0;top:14px;width:10px;height:2px;background:var(--c-accent)}
.gen-card__cta{font-weight:700;color:var(--c-accent)}
.gen-card__cta:hover{color:var(--c-accent-2)}

/* ============ FORMS ============ */
.form{
    background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
    padding:32px;box-shadow:var(--shadow-sm);
}
.form--wide{max-width:980px;margin:0 auto}
.form__grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 18px;margin-bottom:18px}
.field--full{grid-column:1/-1}
.field{display:flex;flex-direction:column;gap:6px}
.field__label{font-size:.85rem;font-weight:600;color:#39445c}
.field input, .field select, .field textarea{
    font:inherit;padding:12px 14px;border:1px solid var(--c-line);border-radius:var(--r-sm);
    background:#fff;color:var(--c-text);transition:border-color var(--t), box-shadow var(--t);
    width:100%;
}
.field input:focus, .field select:focus, .field textarea:focus{
    outline:none;border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(255,107,26,.18);
}
.field textarea{resize:vertical;min-height:84px}
.field--inline{flex-direction:row;align-items:center;gap:10px}
.field--inline .field__label{min-width:90px;margin:0}

.checkbox{display:flex;gap:10px;align-items:flex-start;font-size:.88rem;color:#39445c;margin:6px 0 18px}
.checkbox input{margin-top:3px;accent-color:var(--c-accent)}
.checkbox a{color:var(--c-accent);text-decoration:underline}

.form__foot{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.form__status{font-size:.9rem;color:var(--c-muted);margin-left:auto}
.form__status.is-ok{color:var(--c-ok)}
.form__status.is-err{color:var(--c-err)}

.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}

.field.is-error input, .field.is-error select, .field.is-error textarea{border-color:var(--c-err)}
.field__err{font-size:.78rem;color:var(--c-err);display:none}
.field.is-error .field__err{display:block}

/* ============ STATS ============ */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.stat{
    background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.1);
    border-radius:var(--r-md);padding:28px;position:relative;overflow:hidden;
    transition:transform var(--t), border-color var(--t);
}
.stat::before{
    content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--c-accent);
    transform:scaleY(0);transform-origin:top;transition:transform .6s ease;
}
.stat:hover{transform:translateY(-3px);border-color:rgba(255,138,61,.4)}
.stat:hover::before{transform:scaleY(1)}
.stat__value{
    font-family:var(--f-mono);font-size:clamp(1.8rem,3.2vw,2.6rem);font-weight:700;
    color:#fff;line-height:1;margin-bottom:10px;
}
.stat__label{color:#b8c4dc;font-size:.95rem}
.disclaimer{margin-top:24px;font-size:.82rem;color:#8896b4;text-align:center}
.section--dark .disclaimer{color:#8896b4}

/* ============ PIPELINE ============ */
.pipeline{
    display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
    counter-reset:pipe;margin-bottom:40px;
}
.pipeline__item{
    background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
    padding:22px;position:relative;transition:transform var(--t), box-shadow var(--t);
}
.pipeline__item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.pipeline__n{
    display:inline-block;font-family:var(--f-mono);font-size:.78rem;letter-spacing:.15em;
    color:var(--c-accent);margin-bottom:8px;font-weight:600;
}
.pipeline__item h4{margin-bottom:6px}
.pipeline__item p{color:var(--c-muted);font-size:.92rem;margin:0}

/* ============ GALLERY ============ */
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.gallery__item{
    margin:0;border-radius:var(--r-md);overflow:hidden;aspect-ratio:4/3;
    border:1px solid var(--c-line);
}
.gallery__item img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.gallery__item:hover img{transform:scale(1.05)}

/* ============ FILTERS ============ */
.filters{
    display:flex;flex-wrap:wrap;gap:12px;align-items:flex-end;
    background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
    padding:16px;margin-bottom:28px;
}

/* ============ MODELS ============ */
.models{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.model{
    background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
    overflow:hidden;display:flex;flex-direction:column;
    transition:transform var(--t), box-shadow var(--t);
}
.model:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.model__media{position:relative;aspect-ratio:16/10;overflow:hidden;background:#eef1f7}
.model__media img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.model:hover .model__media img{transform:scale(1.04)}
.model__tag{
    position:absolute;left:12px;top:12px;
    background:var(--c-dark);color:#fff;font-size:.78rem;font-weight:700;
    padding:6px 10px;border-radius:6px;letter-spacing:.04em;
}
.model__tag--gas{background:#16A34A}
.model__tag--inv{background:#2563EB}
.model__body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.model__title{font-size:1.3rem}
.model__sub{color:var(--c-muted);font-size:.9rem;margin-bottom:6px}

.specs{display:grid;grid-template-columns:1fr 1fr;gap:6px 16px;margin:6px 0 10px}
.specs > div{display:flex;justify-content:space-between;gap:10px;padding:8px 0;border-bottom:1px dashed var(--c-line);font-size:.9rem}
.specs dt{color:var(--c-muted);font-weight:500}
.specs dd{margin:0;font-weight:600;color:var(--c-text);text-align:right}

.model__opts{margin-top:4px}
.model__opts summary{cursor:pointer;font-weight:600;color:var(--c-accent);padding:8px 0;list-style:none}
.model__opts summary::-webkit-details-marker{display:none}
.model__opts summary::before{content:"▸ ";transition:transform var(--t)}
.model__opts[open] summary::before{content:"▾ "}
.model__opts ul{margin:6px 0 0;padding-left:18px;list-style:disc;color:#39445c;font-size:.9rem}
.model__opts ul li{padding:3px 0}

.model__cta{display:flex;gap:10px;flex-wrap:wrap;margin-top:auto;padding-top:10px}

.models__empty{text-align:center;padding:30px;color:var(--c-muted)}

/* ============ SOLUTIONS ============ */
.solutions-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.solution{
    background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
    padding:22px;min-height:120px;transition:transform var(--t), box-shadow var(--t), border-color var(--t);
    position:relative;overflow:hidden;
}
.solution::before{
    content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--c-accent);
    transform:scaleY(0);transform-origin:top;transition:transform .5s ease;
}
.solution:hover{transform:translateY(-3px);box-shadow:var(--shadow-sm);border-color:#d6dcec}
.solution:hover::before{transform:scaleY(1)}
.solution h4{margin-bottom:6px}
.solution p{color:var(--c-muted);font-size:.9rem;margin:0}

/* ============ CERTS ============ */
.certs{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.cert{
    background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
    padding:22px 14px;text-align:center;transition:transform var(--t), box-shadow var(--t), border-color var(--t);
    display:flex;flex-direction:column;gap:8px;align-items:center;
}
.cert:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--c-accent)}
.cert__code{
    font-family:var(--f-mono);font-weight:700;font-size:1.4rem;color:var(--c-dark);
    letter-spacing:.05em;
}
.cert__name{font-size:.82rem;color:var(--c-muted)}

/* ============ USAGE ============ */
.usage-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.usage{
    display:block;padding:22px;border:1px solid var(--c-line);border-radius:var(--r-md);
    background:#fff;transition:transform var(--t), box-shadow var(--t), border-color var(--t);
    position:relative;overflow:hidden;
}
.usage:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--c-accent)}
.usage__n{font-family:var(--f-mono);color:var(--c-accent);font-size:.8rem;letter-spacing:.15em;display:block;margin-bottom:8px}
.usage h4{margin-bottom:6px}
.usage p{color:var(--c-muted);font-size:.9rem;margin:0}

/* ============ PROJECTS ============ */
.projects{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.project{
    margin:0;border-radius:var(--r-md);overflow:hidden;background:#0f1a33;
    border:1px solid rgba(255,255,255,.1);position:relative;
    transition:transform var(--t);
}
.project:hover{transform:translateY(-3px)}
.project img{width:100%;aspect-ratio:4/3;object-fit:cover;opacity:.9;transition:opacity var(--t), transform .6s ease}
.project:hover img{opacity:1;transform:scale(1.04)}
.project figcaption{padding:16px}
.project h4{color:#fff;margin-bottom:4px;font-size:1rem}
.project p{color:#b8c4dc;font-size:.85rem;margin:0}

/* ============ SERVICE ============ */
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.service-item{
    display:flex;align-items:center;gap:16px;
    padding:18px 20px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
    transition:transform var(--t), border-color var(--t), box-shadow var(--t);
}
.service-item:hover{transform:translateY(-2px);border-color:var(--c-accent);box-shadow:var(--shadow-sm)}
.service-item span{
    font-family:var(--f-mono);color:var(--c-accent);font-weight:700;font-size:1.1rem;min-width:34px;
}
.service-item h4{margin:0;font-size:1rem}

/* ============ CONTACTS ============ */
.contacts-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.contact{
    background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
    padding:22px;transition:transform var(--t), box-shadow var(--t);
}
.contact:hover{transform:translateY(-3px);box-shadow:var(--shadow-sm)}
.contact h4{color:var(--c-muted);font-size:.82rem;text-transform:uppercase;letter-spacing:.12em;margin-bottom:10px;font-weight:600}
.contact__value{display:block;font-size:1.25rem;font-weight:800;color:var(--c-dark);margin-bottom:6px}
.contact__value:hover{color:var(--c-accent)}
.contact p{color:#39445c;font-size:.92rem;margin:2px 0}

/* ============ FOOTER ============ */
.footer{background:var(--c-graphite);color:#c7d2e6;padding:60px 0 30px}
.footer__inner{display:grid;grid-template-columns:1.3fr 1fr 1fr 1.2fr;gap:30px}
.footer h5{color:#fff;font-size:.85rem;text-transform:uppercase;letter-spacing:.12em;margin:0 0 14px;font-weight:700}
.footer__slogan{color:#8896b4;margin:14px 0}
.footer__small{font-size:.82rem;color:#6a7694}
.footer__nav ul{display:flex;flex-direction:column;gap:8px}
.footer__nav a{color:#c7d2e6;font-size:.92rem}
.footer__nav a:hover{color:var(--c-accent)}
.footer__contacts a{display:block;color:#c7d2e6;font-size:.95rem;margin-bottom:6px}
.footer__contacts a:hover{color:var(--c-accent)}
.footer__contacts p{color:#8896b4;font-size:.88rem;margin:6px 0 0}
.footer__legal a{display:block;color:#c7d2e6;font-size:.9rem;margin-bottom:6px}
.footer__legal a:hover{color:var(--c-accent)}
.footer__legal p{color:#8896b4;font-size:.85rem;margin:4px 0}

/* ============ MODAL ============ */
.modal{
    position:fixed;inset:0;z-index:100;display:none;align-items:center;justify-content:center;
    background:rgba(11,20,40,.65);backdrop-filter:blur(6px);padding:20px;
    animation:fadeIn .25s ease;
}
.modal[hidden]{display:none}
.modal.is-open{display:flex}
.modal__dialog{
    background:#fff;border-radius:var(--r-lg);padding:32px;max-width:560px;width:100%;
    max-height:90vh;overflow:auto;position:relative;box-shadow:var(--shadow-lg);
    animation:popIn .3s cubic-bezier(.2,.8,.2,1);
}
.modal__dialog--sm{max-width:440px;text-align:center}
.modal__close{
    position:absolute;top:14px;right:14px;width:36px;height:36px;border-radius:50%;
    background:#eef1f7;font-size:1.4rem;line-height:1;color:var(--c-dark);
    display:grid;place-items:center;transition:background var(--t);
}
.modal__close:hover{background:#e0e5ef}
.modal__lead{color:var(--c-muted);margin-bottom:18px}
.success__icon{
    width:72px;height:72px;border-radius:50%;background:var(--c-ok);color:#fff;
    font-size:2.2rem;display:grid;place-items:center;margin:0 auto 18px;
    box-shadow:0 10px 30px rgba(22,163,74,.35);
}
.cert__actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin-top:14px}

@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes popIn{from{opacity:0;transform:translateY(10px) scale(.98)}to{opacity:1;transform:none}}

/* ============ REVEAL ============ */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease, transform .7s ease}
.reveal.is-visible{opacity:1;transform:none}

/* ============ RESPONSIVE ============ */
@media (max-width: 1200px){
    .gen-grid{grid-template-columns:repeat(3,1fr)}
    .stats{grid-template-columns:repeat(3,1fr)}
    .pipeline{grid-template-columns:repeat(3,1fr)}
    .solutions-grid{grid-template-columns:repeat(3,1fr)}
    .certs{grid-template-columns:repeat(3,1fr)}
    .usage-grid{grid-template-columns:repeat(3,1fr)}
    .projects{grid-template-columns:repeat(2,1fr)}
    .contacts-grid{grid-template-columns:repeat(2,1fr)}
    .footer__inner{grid-template-columns:1fr 1fr}
}
@media (max-width: 960px){
    .hero__inner{grid-template-columns:1fr;gap:32px}
    .hero__visual{height:360px}
    .gen-grid{grid-template-columns:1fr}
    .stats{grid-template-columns:repeat(2,1fr)}
    .pipeline{grid-template-columns:repeat(2,1fr)}
    .models{grid-template-columns:1fr}
    .solutions-grid{grid-template-columns:repeat(2,1fr)}
    .certs{grid-template-columns:repeat(3,1fr)}
    .usage-grid{grid-template-columns:repeat(2,1fr)}
    .service-grid{grid-template-columns:repeat(2,1fr)}
    .gallery{grid-template-columns:repeat(2,1fr)}
}
@media (max-width: 767px){
    .section{padding:64px 0}
    .hero{padding:56px 0 72px}
    .nav{
        position:fixed;inset:72px 0 auto 0;background:#fff;
        border-bottom:1px solid var(--c-line);
        transform:translateY(-120%);transition:transform var(--t);
        padding:14px 20px;box-shadow:var(--shadow-md);
    }
    .nav.is-open{transform:none}
    .nav__list{flex-direction:column;gap:4px}
    .nav__list a{display:block;padding:12px 4px;border-bottom:1px solid var(--c-line);font-size:1rem}
    .burger{display:block}
    .header__phone span{display:none}
    .header__actions .btn{display:none}

    .hero__cta .btn{flex:1 1 100%}
    .hero__visual{height:300px}
    .hero__card--1{width:70%;height:55%}
    .hero__card--2{width:58%;height:46%}
    .hero__card--3{width:78%;height:40%}

    .form{padding:22px}
    .form__grid{grid-template-columns:1fr}
    .field--inline{flex-direction:column;align-items:stretch}

    .stats{grid-template-columns:1fr 1fr}
    .pipeline{grid-template-columns:1fr}
    .solutions-grid{grid-template-columns:1fr}
    .certs{grid-template-columns:repeat(2,1fr)}
    .usage-grid{grid-template-columns:1fr}
    .projects{grid-template-columns:1fr}
    .service-grid{grid-template-columns:1fr}
    .contacts-grid{grid-template-columns:1fr}
    .gallery{grid-template-columns:1fr 1fr}
    .footer__inner{grid-template-columns:1fr;gap:26px}

    .specs{grid-template-columns:1fr}
    .specs > div{justify-content:flex-start;flex-direction:column;gap:2px}
    .specs dd{text-align:left}
}
@media (max-width: 420px){
    .stats{grid-template-columns:1fr}
    .certs{grid-template-columns:1fr 1fr}
    .hero__meta{gap:14px}
}

/* ============ ФОРМА: ГРУППА ЧЕКБОКСОВ ============ */
.form__checkboxes {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin: 16px 0 20px;
    padding: 16px;
    background: var(--c-bg-alt);
    border-radius: var(--r-sm);
    border: 1px solid var(--c-line);
}
.form__checkboxes .checkbox {
    margin: 0;
    align-items: flex-start;
}
.form__checkboxes .checkbox input {
    margin-top: 4px;
    flex-shrink: 0;
}
.form__checkboxes .checkbox span {
    font-size: 0.85rem;
    line-height: 1.4;
    color: #39445c;
}
.form__checkboxes .checkbox a {
    color: var(--c-accent);
    text-decoration: underline;
    text-underline-offset: 2px;
}
.form__checkboxes .checkbox a:hover {
    color: var(--c-accent-2);
}

/* ============ COOKIE БАННЕР ============ */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 90;
    background: var(--c-graphite);
    color: #c7d2e6;
    border-top: 2px solid var(--c-accent);
    box-shadow: 0 -10px 40px rgba(0,0,0,0.3);
    animation: slideUp 0.4s ease-out;
}
.cookie-banner[hidden] {
    display: none !important;
}
.cookie-banner__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 16px 20px;
}
.cookie-banner__text {
    margin: 0;
    font-size: 0.9rem;
    line-height: 1.5;
}
.cookie-banner__text a {
    color: var(--c-accent);
    text-decoration: underline;
}
.cookie-banner__text a:hover {
    color: var(--c-accent-2);
}
.cookie-banner__actions {
    flex-shrink: 0;
}

@keyframes slideUp {
    from { transform: translateY(100%); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* Адаптив для Cookie-баннера */
@media (max-width: 767px) {
    .cookie-banner__inner {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
    .cookie-banner__actions {
        width: 100%;
    }
    .cookie-banner__actions .btn {
        width: 100%;
    }
}

/* ============ БЛОК ВИДЕО ============ */
.video-block {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 40px;
    align-items: start;
    background: rgba(255,255,255,.04);
    border: 1px solid rgba(255,255,255,.1);
    border-radius: var(--r-lg);
    padding: 32px;
    margin-top: 40px;
}

.video-block__frame {
    position: relative;
    border-radius: var(--r-md);
    overflow: hidden;
    aspect-ratio: 7/7;
    background: #000;
    box-shadow: 0 20px 50px rgba(0,0,0,.4);
    border: 2px solid rgba(255,107,26,.3);
}

/* Стилизация нативного плеера */
.video-block__player {
    width: 100%;
    height: 100%;
    display: block;
    background: #000;
    object-fit: cover;
}

/* Кастомный акцент на плеере через обводку при фокусе */
.video-block__player:focus {
    outline: 2px solid var(--c-accent);
    outline-offset: -2px;
}

/* Постер (обложка до нажатия play) */
.video-block__frame::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
            linear-gradient(135deg, rgba(11,37,69,.3), rgba(255,107,26,.15)),
            url('img/video-poster.jpg') center/cover no-repeat;
    z-index: 0;
    pointer-events: none;
    transition: opacity .3s ease;
}

/* Скрываем постер после начала воспроизведения */
.video-block__frame.is-playing::before {
    opacity: 0;
}

/* Кнопка Play поверх постера */
.video-block__play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: rgba(255,107,26,.95);
    border: 3px solid #fff;
    display: grid;
    place-items: center;
    cursor: pointer;
    z-index: 2;
    transition: transform .2s ease, background .2s ease;
    box-shadow: 0 10px 30px rgba(255,107,26,.5);
}

.video-block__play-btn:hover {
    transform: translate(-50%, -50%) scale(1.1);
    background: var(--c-accent-2);
}

.video-block__play-btn::after {
    content: "";
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 14px 0 14px 24px;
    border-color: transparent transparent transparent #fff;
    margin-left: 6px;
}

.video-block__frame.is-playing .video-block__play-btn {
    opacity: 0;
    pointer-events: none;
}

.video-block__info h3 {
    color: #fff;
    margin-bottom: 24px;
    font-size: 1.4rem;
}

.video-block__list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.video-block__list li {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(255,255,255,.08);
}

.video-block__list li:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.video-block__icon {
    font-size: 1.8rem;
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: grid;
    place-items: center;
    background: rgba(255,107,26,.15);
    border-radius: 10px;
    border: 1px solid rgba(255,107,26,.3);
}

.video-block__list strong {
    display: block;
    color: #fff;
    font-size: 1rem;
    margin-bottom: 4px;
}

.video-block__list p {
    color: #b8c4dc;
    font-size: .9rem;
    margin: 0;
    line-height: 1.5;
}

/* Адаптив */
@media (max-width: 960px) {
    .video-block {
        grid-template-columns: 1fr;
        gap: 28px;
        padding: 24px;
    }
}

@media (max-width: 767px) {
    .video-block {
        padding: 18px;
    }
    .video-block__frame {
        aspect-ratio: 4/3;
    }
    .video-block__play-btn {
        width: 64px;
        height: 64px;
    }
    .video-block__play-btn::after {
        border-width: 10px 0 10px 18px;
        margin-left: 4px;
    }
    .video-block__icon {
        width: 42px;
        height: 42px;
        font-size: 1.5rem;
    }
}

/* ============ КНОПКА СКАЧАТЬ PDF ============ */
.model__cta .btn--outline {
    color: var(--c-dark);
    border-color: var(--c-line);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.model__cta .btn--outline:hover {
    background: var(--c-dark);
    color: #fff;
    border-color: var(--c-dark);
}

.model__cta .btn--outline svg {
    flex-shrink: 0;
}

/* Адаптив для кнопок в карточках моделей */
@media (max-width: 767px) {
    .model__cta {
        flex-direction: column;
    }

    .model__cta .btn {
        width: 100%;
    }
}