/*
Otproffi — стили сайта (светлая тема, фирменный цвет Tiffany).
Строительство быстровозводимых зданий из сэндвич-панелей под ключ.
*/

:root{
    /* Светлая палитра с фирменным цветом Tiffany (как на логотипе Otproffi) */
    --c-bg:#ffffff;
    --c-bg-2:#eef8f7;
    --c-surface:#ffffff;
    --c-line:rgba(15,45,48,.12);
    --c-text:#15272d;
    --c-muted:#5c6c73;
    --c-accent:#0abab5;      /* Tiffany */
    --c-accent-2:#0b938f;    /* глубокий Tiffany — для ссылок/текста на белом */
    --c-orange:#0abab5;
    --c-graphite:#d6ebe9;
    --radius:14px;
    --shadow:0 24px 50px -24px rgba(10,70,68,.25);
    --container:1240px;
    --t:.35s cubic-bezier(.2,.7,.2,1);
    --tiffany:#0abab5;
    --tiffany-deep:#0b938f;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
    margin:0;
    font-family:'Inter','Segoe UI',-apple-system,sans-serif;
    background:var(--c-bg);
    color:var(--c-text);
    line-height:1.55;
    overflow-x:hidden;
    -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--t)}
a:hover{color:var(--c-accent-2)}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}

.container{max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:120px 0;position:relative}
.section-title{
    font-size:clamp(28px,4.2vw,52px);
    font-weight:800;
    letter-spacing:-.02em;
    margin:0 0 16px;
    line-height:1.05;
}
.section-title span{
    background:linear-gradient(120deg,var(--c-accent),var(--c-accent-2));
    -webkit-background-clip:text;background-clip:text;color:transparent;
}
.section-sub{color:var(--c-muted);max-width:680px;margin:0 auto 60px;text-align:center;font-size:18px}
.section-head{text-align:center;margin-bottom:60px}

/* ---------- HEADER ---------- */
.site-header{
    position:fixed;top:0;left:0;right:0;z-index:50;
    backdrop-filter:blur(14px);
    background:rgba(11,13,16,.65);
    border-bottom:1px solid var(--c-line);
    transition:transform var(--t);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:20px}
.brand-mark{
    width:38px;height:38px;border-radius:10px;
    background:linear-gradient(135deg,var(--c-accent),var(--c-accent-2));
    display:grid;place-items:center;
    box-shadow:0 8px 24px -8px var(--c-accent);
    position:relative;overflow:hidden;
}
.brand-mark::before{
    content:"";position:absolute;inset:0;
    background:repeating-linear-gradient(90deg,transparent 0 6px,rgba(0,0,0,.18) 6px 8px);
}
.brand-mark span{position:relative;color:#fff;font-weight:900}
.nav-menu{display:flex;gap:32px;list-style:none;padding:0;margin:0}
.nav-menu a{font-size:15px;color:var(--c-text);position:relative;padding:6px 0}
.nav-menu a::after{
    content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
    background:var(--c-accent);transition:width var(--t);
}
.nav-menu a:hover::after{width:100%}
.nav-cta{
    padding:11px 22px;border-radius:999px;
    background:linear-gradient(135deg,var(--c-accent),var(--c-accent-2));
    color:#fff;font-weight:600;font-size:14px;
    box-shadow:0 10px 24px -10px var(--c-accent);
    transition:transform var(--t),box-shadow var(--t);
}
.nav-cta:hover{transform:translateY(-2px);color:#fff;box-shadow:0 16px 32px -10px var(--c-accent)}
.burger{display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--c-line)}
.burger span{display:block;width:18px;height:2px;background:#fff;margin:4px auto;transition:var(--t)}

/* ---------- HERO ---------- */
.hero{
    position:relative;min-height:88vh;display:flex;align-items:center;
    padding:140px 0 0;
    overflow:hidden;
    background-size:cover;background-position:center;background-repeat:no-repeat;
}
.hero--photo{background-color:#0a0c10}
.hero--photo::before{
    content:"";position:absolute;inset:0;z-index:1;
    background:linear-gradient(105deg,
        rgba(11,13,16,.92) 0%,
        rgba(11,13,16,.78) 40%,
        rgba(11,13,16,.55) 70%,
        rgba(11,13,16,.35) 100%);
    pointer-events:none;
}
/* hero slideshow */
.hero-slides{position:absolute;inset:0;z-index:0;overflow:hidden}
.hero-slide{
    position:absolute;inset:0;
    background-size:cover;background-position:center;background-repeat:no-repeat;
    opacity:0;
    transform:scale(1.08);
    transition:opacity 1.6s ease-in-out;
    animation:hero-zoom 12s ease-in-out infinite alternate;
    animation-play-state:paused;
}
.hero-slide.is-active{opacity:1;animation-play-state:running}
@keyframes hero-zoom{
    from{transform:scale(1.0)}
    to{transform:scale(1.12)}
}
.hero-canvas{position:absolute;inset:0;z-index:0}
.hero-canvas canvas{width:100%!important;height:100%!important;display:block}
.hero--3d::before{
    content:"";position:absolute;inset:0;z-index:1;
    background:
        radial-gradient(circle at 20% 30%,rgba(255,90,31,.15),transparent 50%),
        radial-gradient(circle at 80% 80%,rgba(255,138,61,.08),transparent 50%),
        linear-gradient(180deg,rgba(11,13,16,.4),rgba(11,13,16,.85));
    pointer-events:none;
}
.hero-overlay{position:absolute;inset:0;z-index:1;pointer-events:none}
.hero-inner{position:relative;z-index:2;width:100%;padding-bottom:60px}
.hero-content{max-width:780px}
.hero-title{
    font-size:clamp(40px,6vw,80px);font-weight:900;
    letter-spacing:-.025em;line-height:1.0;margin:18px 0 0;
    text-transform:uppercase;color:#fff;
    text-shadow:0 4px 30px rgba(0,0,0,.5);
}
.hero-tagline{
    display:inline-block;margin:22px 0 28px;
    padding:14px 26px;
    background:linear-gradient(135deg,var(--c-accent),var(--c-accent-2));
    color:#fff;font-weight:800;font-size:clamp(15px,1.8vw,22px);
    text-transform:uppercase;letter-spacing:.04em;
    border-radius:6px;
    box-shadow:0 14px 30px -10px rgba(255,90,31,.6);
    position:relative;
}
.hero-tagline::before{
    content:"";position:absolute;left:0;top:0;bottom:0;width:6px;
    background:rgba(0,0,0,.25);border-radius:6px 0 0 6px;
}
.hero-stats-bar{
    position:relative;z-index:2;
    background:linear-gradient(180deg,rgba(0,0,0,.4),rgba(0,0,0,.7));
    backdrop-filter:blur(8px);
    border-top:1px solid var(--c-line);
    padding:24px 0;
}
.hero-stats-bar .hero-stats{
    display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
    max-width:none;
}
.hero-stats-bar .stat{
    background:transparent;border:0;padding:8px 0;text-align:center;
}
.hero-badge{
    display:inline-flex;align-items:center;gap:8px;
    padding:8px 16px;border-radius:999px;
    background:rgba(255,90,31,.12);border:1px solid rgba(255,90,31,.3);
    font-size:13px;color:var(--c-accent-2);font-weight:600;margin-bottom:24px;
    animation:pulse 2.5s ease-in-out infinite;
}
.hero-badge::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--c-accent);box-shadow:0 0 10px var(--c-accent)}
@keyframes pulse{50%{opacity:.7}}
.hero h1{
    font-size:clamp(36px,5.8vw,72px);font-weight:900;
    letter-spacing:-.03em;line-height:1.02;margin:0 0 24px;
}
.hero h1 .accent{
    background:linear-gradient(120deg,var(--c-accent),var(--c-accent-2));
    -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{font-size:19px;color:var(--c-muted);max-width:560px;margin:0 0 36px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:48px}
.btn{
    display:inline-flex;align-items:center;gap:10px;
    padding:16px 28px;border-radius:12px;font-weight:600;font-size:15px;
    transition:transform var(--t),box-shadow var(--t),background var(--t);
}
.btn-primary{
    background:linear-gradient(135deg,var(--c-accent),var(--c-accent-2));color:#fff;
    box-shadow:0 14px 30px -10px var(--c-accent);
}
.btn-primary:hover{transform:translateY(-3px);color:#fff;box-shadow:0 20px 40px -10px var(--c-accent)}
.btn-ghost{background:rgba(255,255,255,.06);border:1px solid var(--c-line);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;max-width:560px}
.stat{padding:20px;border-radius:14px;background:rgba(255,255,255,.03);border:1px solid var(--c-line)}
.stat-num{font-size:32px;font-weight:800;color:var(--c-accent-2);line-height:1}
.stat-lbl{color:var(--c-muted);font-size:13px;margin-top:6px}

/* hero 3d frame */
.hero-3d-frame{
    position:relative;aspect-ratio:1/1;border-radius:24px;
    background:radial-gradient(circle at 50% 50%,rgba(255,90,31,.1),transparent 70%);
}
.hero-3d-frame::before{
    content:"";position:absolute;inset:-20px;border-radius:30px;
    background:conic-gradient(from 0deg,transparent,rgba(255,90,31,.3),transparent 30%);
    animation:rotate 8s linear infinite;filter:blur(20px);opacity:.5;
}
@keyframes rotate{to{transform:rotate(360deg)}}

/* ---------- HERO PHOTO STRIP ---------- */
.hero-strip{padding:50px 0 0;background:var(--c-bg)}
.hero-strip-head{
    display:flex;justify-content:space-between;align-items:baseline;margin-bottom:18px;
}
.hero-strip-head span{font-size:13px;text-transform:uppercase;letter-spacing:.1em;color:var(--c-muted);font-weight:600}
.hero-strip-head a{color:var(--c-accent-2);font-size:14px;font-weight:600}
.hero-strip-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.strip-card{
    position:relative;aspect-ratio:4/3;border-radius:14px;overflow:hidden;
    background:#1a1f25;display:block;
}
.strip-card img,.strip-ph{width:100%;height:100%;object-fit:cover;transition:transform .8s ease}
.strip-ph{background:linear-gradient(135deg,#2a2f36,#171c22)}
.strip-card:hover img{transform:scale(1.08)}
.strip-meta{
    position:absolute;left:0;right:0;bottom:0;
    padding:16px;
    background:linear-gradient(180deg,transparent,rgba(0,0,0,.85));
    color:#fff;
}
.strip-meta b{display:block;font-size:14px;margin-bottom:2px}
.strip-meta span{font-size:12px;color:var(--c-muted)}
@media (max-width:980px){.hero-strip-grid{grid-template-columns:repeat(2,1fr)}}

/* ---------- FEATURES ---------- */
.features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feature{
    position:relative;padding:32px 28px;border-radius:var(--radius);
    background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.01));
    border:1px solid var(--c-line);
    transition:transform var(--t),border-color var(--t);
    overflow:hidden;
}
.feature::before{
    content:"";position:absolute;top:0;left:0;right:0;height:2px;
    background:linear-gradient(90deg,transparent,var(--c-accent),transparent);
    transform:translateX(-100%);transition:transform .6s ease;
}
.feature:hover{transform:translateY(-6px);border-color:rgba(255,90,31,.4)}
.feature:hover::before{transform:translateX(100%)}
.feature-icon{
    width:54px;height:54px;border-radius:14px;display:grid;place-items:center;
    background:linear-gradient(135deg,rgba(255,90,31,.2),rgba(255,138,61,.05));
    color:var(--c-accent-2);font-size:24px;margin-bottom:20px;
}
.feature h3{margin:0 0 10px;font-size:18px;font-weight:700}
.feature p{color:var(--c-muted);font-size:14px;margin:0}

/* ---------- SERVICES / TYPES OF BUILDINGS ---------- */
.types-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.type-card{
    position:relative;border-radius:18px;overflow:hidden;
    background:var(--c-surface);border:1px solid var(--c-line);
    transition:transform var(--t),box-shadow var(--t);
}
.type-card:hover{transform:translateY(-8px);box-shadow:var(--shadow)}
.type-img{aspect-ratio:16/11;background:#222 center/cover;position:relative;overflow:hidden}
.type-img::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(11,13,16,.95))}
.type-body{padding:24px 26px 28px;position:relative}
.type-body h3{margin:0 0 8px;font-size:22px;font-weight:700}
.type-body .desc{color:var(--c-muted);font-size:14px;min-height:42px}
.type-price{
    display:flex;align-items:baseline;gap:8px;margin-top:18px;
    padding-top:18px;border-top:1px dashed var(--c-line);
}
.type-price .from{color:var(--c-muted);font-size:13px}
.type-price .val{font-size:24px;font-weight:800;color:var(--c-accent-2)}
.type-price .unit{color:var(--c-muted);font-size:13px}
.type-more{
    margin-top:18px;display:inline-flex;align-items:center;gap:8px;
    color:var(--c-accent-2);font-weight:600;font-size:14px;
}
.type-more::after{content:"→";transition:transform var(--t)}
.type-card:hover .type-more::after{transform:translateX(6px)}

/* ---------- PROCESS / TIMELINE ---------- */
.process{position:relative}
.process-line{
    display:grid;grid-template-columns:repeat(5,1fr);gap:20px;position:relative;
}
.process-line::before{
    content:"";position:absolute;top:32px;left:6%;right:6%;height:2px;
    background:linear-gradient(90deg,transparent,var(--c-accent) 20%,var(--c-accent-2) 80%,transparent);
}
.step{position:relative;text-align:center;padding:0 8px}
.step-num{
    width:64px;height:64px;border-radius:50%;margin:0 auto 18px;
    display:grid;place-items:center;
    background:var(--c-bg);border:2px solid var(--c-accent);
    font-size:22px;font-weight:800;color:var(--c-accent-2);
    position:relative;z-index:2;
    box-shadow:0 0 0 8px var(--c-bg),0 12px 28px -10px var(--c-accent);
    transition:transform var(--t);
}
.step:hover .step-num{transform:scale(1.08) rotate(-5deg)}
.step h4{margin:0 0 6px;font-size:16px}
.step p{color:var(--c-muted);font-size:13px;margin:0}

/* ---------- PRICES TABLE ---------- */
.prices-wrap{
    border-radius:18px;overflow:hidden;
    background:linear-gradient(180deg,rgba(255,255,255,.03),rgba(255,255,255,.01));
    border:1px solid var(--c-line);
}
.prices-table{width:100%;border-collapse:collapse}
.prices-table th{
    text-align:left;padding:20px 24px;font-size:13px;
    color:var(--c-muted);font-weight:600;text-transform:uppercase;letter-spacing:.06em;
    background:rgba(255,255,255,.03);
}
.prices-table td{padding:22px 24px;border-top:1px solid var(--c-line);font-size:15px}
.prices-table tr:hover td{background:rgba(255,90,31,.04)}
.prices-table .price{font-weight:800;color:var(--c-accent-2);font-size:18px;white-space:nowrap}
.prices-table .name{font-weight:600}

/* ---------- PORTFOLIO ---------- */
.portfolio-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.project{
    position:relative;border-radius:16px;overflow:hidden;aspect-ratio:4/3;
    cursor:pointer;background:#1a1f25;
}
.project img{width:100%;height:100%;object-fit:cover;transition:transform .8s ease}
.project:hover img{transform:scale(1.08)}
.project-overlay{
    position:absolute;inset:0;padding:24px;display:flex;flex-direction:column;justify-content:flex-end;
    background:linear-gradient(180deg,transparent 40%,rgba(11,13,16,.95));
    transform:translateY(20px);opacity:.8;transition:var(--t);
}
.project:hover .project-overlay{transform:translateY(0);opacity:1}
.project-overlay h4{margin:0 0 6px;font-size:18px}
.project-overlay p{margin:0;color:var(--c-muted);font-size:13px}

/* ---------- CTA BAND ---------- */
.cta-band{
    position:relative;border-radius:24px;overflow:hidden;
    padding:60px 50px;
    background:linear-gradient(135deg,#1a1f25,#0f1316);
    border:1px solid var(--c-line);
}
.cta-band::before{
    content:"";position:absolute;top:-50%;right:-20%;width:600px;height:600px;
    background:radial-gradient(circle,rgba(255,90,31,.25),transparent 60%);filter:blur(40px);
}
.cta-band-inner{position:relative;display:grid;grid-template-columns:1.4fr 1fr;gap:40px;align-items:center}
.cta-band h2{font-size:clamp(28px,3.5vw,40px);margin:0 0 12px;line-height:1.1}
.cta-band p{color:var(--c-muted);margin:0;font-size:16px}
.cta-form{display:flex;gap:12px;flex-wrap:wrap}
.cta-form input{
    flex:1;min-width:200px;padding:16px 20px;border-radius:12px;
    background:rgba(255,255,255,.05);border:1px solid var(--c-line);
    color:#fff;font-size:15px;outline:none;
}
.cta-form input:focus{border-color:var(--c-accent)}

/* ---------- CALCULATOR ---------- */
.calc-wrap{
    position:relative;
    display:grid;grid-template-columns:1.05fr .95fr;gap:0;
    border-radius:24px;overflow:hidden;
    background:linear-gradient(180deg,#11151a,#0c0f13);
    border:1px solid var(--c-line);
    box-shadow:0 40px 80px -30px rgba(0,0,0,.6);
}
.calc-stage{
    position:relative;min-height:560px;
    background:
        radial-gradient(circle at 30% 30%,rgba(255,90,31,.18),transparent 60%),
        radial-gradient(circle at 70% 70%,rgba(41,120,255,.12),transparent 60%),
        #0a0c10;
    cursor:grab;
}
.calc-stage:active{cursor:grabbing}
.calc-stage canvas{display:block}
.calc-stage::after{
    content:"Двигайте мышью · колесо — зум";
    position:absolute;left:20px;bottom:18px;
    color:rgba(255,255,255,.45);font-size:12px;letter-spacing:.04em;
    background:rgba(0,0,0,.4);padding:6px 12px;border-radius:999px;
    backdrop-filter:blur(8px);pointer-events:none;
}
.calc-stage::before{
    content:"";position:absolute;top:18px;right:18px;
    width:8px;height:8px;border-radius:50%;background:var(--c-accent);
    box-shadow:0 0 12px var(--c-accent);
    animation:pulse 1.6s ease-in-out infinite;
    z-index:2;
}
.calc-panel{padding:36px 36px 32px;display:flex;flex-direction:column;gap:22px;overflow-y:auto;max-height:760px}
.calc-panel h3{
    margin:0 0 4px;font-size:13px;text-transform:uppercase;
    letter-spacing:.1em;color:var(--c-muted);font-weight:600;
}
.calc-row{display:flex;flex-direction:column;gap:8px}
.calc-chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{
    padding:10px 14px;border-radius:10px;
    background:rgba(255,255,255,.04);border:1px solid var(--c-line);
    font-size:13px;color:#cfd6df;cursor:pointer;
    transition:all var(--t);user-select:none;
}
.chip:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.15)}
.chip.on{
    background:linear-gradient(135deg,var(--c-accent),var(--c-accent-2));
    border-color:transparent;color:#fff;font-weight:600;
    box-shadow:0 6px 18px -6px var(--c-accent);
}
.chip.color-sw{
    width:36px;height:36px;padding:0;border-radius:50%;position:relative;
}
.chip.color-sw.on::after{
    content:"";position:absolute;inset:-4px;border-radius:50%;
    border:2px solid var(--c-accent-2);
}
.chip[data-pick="color:orange"]{background:#e85a23}
.chip[data-pick="color:blue"]{background:#2978ff}
.chip[data-pick="color:green"]{background:#3aa84a}
.chip[data-pick="color:gray"]{background:#9aa4b2}

.calc-slider{
    -webkit-appearance:none;appearance:none;
    width:100%;height:6px;border-radius:999px;
    background:linear-gradient(90deg,var(--c-accent),var(--c-accent-2)) no-repeat;
    background-color:rgba(255,255,255,.08);
    outline:none;
}
.calc-slider::-webkit-slider-thumb{
    -webkit-appearance:none;width:22px;height:22px;border-radius:50%;
    background:#fff;border:3px solid var(--c-accent);cursor:pointer;
    box-shadow:0 4px 12px -2px var(--c-accent);transition:transform .15s;
}
.calc-slider::-webkit-slider-thumb:hover{transform:scale(1.15)}
.calc-slider::-moz-range-thumb{width:22px;height:22px;border-radius:50%;background:#fff;border:3px solid var(--c-accent);cursor:pointer}
.calc-slider-row{display:flex;justify-content:space-between;align-items:baseline;font-size:13px}
.calc-slider-row b{font-size:18px;color:var(--c-accent-2);font-weight:700}
.calc-slider-row span{color:var(--c-muted)}

.calc-summary{
    margin-top:auto;
    padding:24px;border-radius:16px;
    background:linear-gradient(135deg,rgba(255,90,31,.1),rgba(255,138,61,.04));
    border:1px solid rgba(255,90,31,.25);
}
.calc-summary-top{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:14px;flex-wrap:wrap;gap:10px}
.calc-total{font-size:36px;font-weight:900;color:#fff;line-height:1;letter-spacing:-.02em}
.calc-rate{color:var(--c-muted);font-size:13px;text-align:right}
.calc-monthly{display:inline-block;padding:5px 12px;border-radius:999px;background:rgba(255,255,255,.08);font-size:12px;margin-top:6px}
.calc-breakdown{list-style:none;padding:0;margin:14px 0;display:flex;flex-direction:column;gap:8px;border-top:1px dashed rgba(255,255,255,.1);padding-top:14px}
.calc-breakdown li{display:flex;justify-content:space-between;font-size:13px;color:#cfd6df}
.calc-breakdown li b{color:#fff;font-weight:600}
.calc-send{
    width:100%;margin-top:12px;
    padding:16px;border-radius:12px;
    background:linear-gradient(135deg,var(--c-accent),var(--c-accent-2));
    color:#fff;font-weight:700;font-size:15px;cursor:pointer;
    transition:all var(--t);
    box-shadow:0 12px 28px -10px var(--c-accent);
}
.calc-send:hover{transform:translateY(-2px);box-shadow:0 18px 36px -10px var(--c-accent)}

@media (max-width:980px){
    .calc-wrap{grid-template-columns:1fr}
    .calc-stage{min-height:380px}
    .calc-panel{max-height:none}
}

/* ---------- FOOTER ---------- */
.site-footer{
    background:#070809;border-top:1px solid var(--c-line);
    padding:80px 0 30px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;margin-bottom:50px}
.footer-grid h5{font-size:14px;text-transform:uppercase;letter-spacing:.08em;color:var(--c-muted);margin:0 0 18px}
.footer-grid ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.footer-grid li a{font-size:14px;color:#cfd6df}
.footer-about p{color:var(--c-muted);font-size:14px;line-height:1.7;margin:14px 0 0}
.footer-bottom{
    padding-top:30px;border-top:1px solid var(--c-line);
    display:flex;justify-content:space-between;align-items:center;
    color:var(--c-muted);font-size:13px;flex-wrap:wrap;gap:16px;
}

/* ---------- REVEAL ANIMATIONS ---------- */
.reveal{opacity:0;transform:translateY(40px);transition:opacity .9s ease,transform .9s ease}
.reveal.in{opacity:1;transform:none}
.reveal-delay-1{transition-delay:.1s}
.reveal-delay-2{transition-delay:.2s}
.reveal-delay-3{transition-delay:.3s}

/* tilt card */
.tilt{transform-style:preserve-3d;transition:transform .15s ease-out}

/* contact method radio chips */
.cm-opt{
    display:inline-flex;align-items:center;gap:6px;
    padding:8px 14px;border-radius:999px;
    background:rgba(255,255,255,.05);border:1px solid var(--c-line);
    cursor:pointer;transition:all var(--t);user-select:none;color:#cfd6df;
}
.cm-opt:hover{background:rgba(255,255,255,.08)}
.cm-opt input{accent-color:var(--c-accent);margin-right:2px}
.cm-opt:has(input:checked){
    background:linear-gradient(135deg,rgba(255,90,31,.2),rgba(255,138,61,.1));
    border-color:var(--c-accent);color:#fff;
}

/* floating contacts */
.float-contacts{
    position:fixed;right:22px;bottom:22px;z-index:40;
    display:flex;flex-direction:column;gap:12px;
}
.fc-btn{
    width:56px;height:56px;border-radius:50%;
    display:grid;place-items:center;color:#fff;
    box-shadow:0 14px 30px -8px rgba(0,0,0,.45);
    transition:transform .25s ease;
}
.fc-btn:hover{transform:translateY(-3px) scale(1.06);color:#fff}
.fc-max{background:linear-gradient(135deg,#0086ff,#5e34ff)}
.fc-tg{background:#229ed9}
.fc-call{
    background:linear-gradient(135deg,var(--c-accent),var(--c-accent-2));
    animation:bounce 2.5s ease-in-out infinite;
}
@keyframes bounce{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
@media (max-width:640px){.fc-btn{width:50px;height:50px}.fc-btn svg{width:20px;height:20px}}

/* ---------- RESPONSIVE ---------- */
@media (max-width:1024px){
    .hero-inner,.cta-band-inner{grid-template-columns:1fr}
    .features-grid{grid-template-columns:repeat(2,1fr)}
    .types-grid,.portfolio-grid{grid-template-columns:repeat(2,1fr)}
    .process-line{grid-template-columns:repeat(2,1fr);gap:40px}
    .process-line::before{display:none}
    .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:640px){
    .section{padding:80px 0}
    .nav-menu{display:none}
    .burger{display:block}
    .hero{min-height:auto;padding-top:110px}
    .hero-stats-bar .hero-stats{grid-template-columns:repeat(2,1fr);gap:14px}
    .hero-stats{grid-template-columns:1fr;gap:12px}
    .features-grid,.types-grid,.portfolio-grid{grid-template-columns:1fr}
    .cta-band{padding:36px 24px}
    .footer-grid{grid-template-columns:1fr}
    .prices-table th:nth-child(3),.prices-table td:nth-child(3){display:none}
}

/* ===================================================================
   MOBILE POLISH — адаптация под планшеты и смартфоны
   =================================================================== */
/* HERO: на узких экранах текст и блок статистики ставим в колонку
   (на десктопе .hero — flex-row, статистика стоит справа) */
@media (max-width:980px){
    .hero{flex-direction:column;align-items:stretch}
    .hero-content{max-width:none}
    .hero-inner{padding-bottom:28px}
    .hero-stats-bar{width:100%}
}
@media (max-width:768px){
    .section{padding:72px 0}
    .section-head{margin-bottom:40px}
    .section-sub{margin-bottom:40px;font-size:16px}
    .nav-wrap{height:64px}
    .site-header .brand{font-size:17px;gap:9px}
    .brand-mark{width:34px;height:34px}
    .types-grid,.portfolio-grid,.hero-strip-grid{grid-template-columns:repeat(2,1fr);gap:16px}
    .hero-lead{font-size:17px}
    .cta-band-inner{gap:28px}
}
@media (max-width:640px){
    .container{padding:0 16px}
    /* шапка: убираем телефон-плашку (есть плавающая кнопка звонка) */
    .nav-cta{display:none}
    /* выпадающее мобильное меню */
    .nav-menu{gap:4px!important}
    .nav-menu a{display:block;padding:12px 4px;font-size:16px;border-bottom:1px solid var(--c-line)}
    /* калькулятор */
    .calc-panel{padding:22px 18px;gap:18px;max-height:none}
    .calc-stage{min-height:300px}
    .calc-stage::after{font-size:11px;left:12px;bottom:12px}
    .calc-total{font-size:28px}
    .calc-summary{padding:18px}
    .chip{padding:9px 12px;font-size:12px}
    /* кнопки hero на всю ширину — удобно нажимать */
    .hero-actions{gap:12px}
    .hero-actions .btn{flex:1 1 100%;justify-content:center}
    /* цены */
    .prices-table th,.prices-table td{padding:14px 12px;font-size:13px}
    .prices-table .price{font-size:15px}
    /* карточки */
    .type-body{padding:18px 18px 22px}
    .type-body h3{font-size:19px}
    .feature{padding:24px 22px}
    .cta-band h2{font-size:24px}
    .section-title{font-size:clamp(24px,7vw,34px)}
    .footer-bottom{flex-direction:column;align-items:flex-start;text-align:left}
}
@media (max-width:480px){
    .section{padding:56px 0}
    .types-grid,.portfolio-grid,.hero-strip-grid{grid-template-columns:1fr;gap:14px}
    .hero-stats-bar .hero-stats{grid-template-columns:repeat(2,1fr)}
    /* в таблице цен оставляем только «Тип здания» и «Цена» */
    .prices-table th:nth-child(2),.prices-table td:nth-child(2){display:none}
    .nav-wrap{height:60px}
    .float-contacts{right:14px;bottom:14px}
    .btn{padding:15px 24px}
    .hero-title{font-size:clamp(34px,9vw,46px)}
}

/* ===================================================================
   СВЕТЛАЯ ТЕМА — переопределения (Otproffi, фирменный цвет Tiffany)
   Перекрашиваются места, где в исходной тёмной теме цвета заданы прямо.
   =================================================================== */

/* Шапка — светлая, стеклянная */
.site-header{background:rgba(255,255,255,.82);border-bottom:1px solid var(--c-line);box-shadow:0 6px 24px -18px rgba(10,70,68,.5)}
.burger{border:1px solid var(--c-line)}
.burger span{background:var(--c-text)}
.brand{color:var(--c-text)}

/* Hero: фото + мягкое tiffany-затемнение, текст читаемый */
.hero--photo{background-color:#0c2b2a}
.hero--photo::before{
    background:linear-gradient(105deg,
        rgba(9,48,47,.88) 0%,
        rgba(9,52,51,.70) 42%,
        rgba(10,60,58,.42) 72%,
        rgba(10,70,68,.22) 100%);
}
.hero-badge{background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.35);color:#fff}
.hero-badge::before{background:#fff;box-shadow:0 0 10px #fff}
.hero-tagline{box-shadow:0 14px 30px -10px rgba(10,186,181,.55)}
.hero-stats-bar{background:linear-gradient(180deg,rgba(8,40,39,.35),rgba(8,40,39,.62))}
.stat-num{color:#fff}
.hero-stats-bar .stat-lbl{color:rgba(255,255,255,.82)}
.btn-ghost{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.4);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.24);color:#fff}

/* Карточки типов зданий — белые с мягкой тенью */
.type-card{background:#fff;border:1px solid var(--c-line);box-shadow:0 18px 40px -28px rgba(10,70,68,.45)}
.type-card:hover{box-shadow:0 26px 54px -26px rgba(10,120,116,.4)}

/* Преимущества */
.feature{background:#fff;border:1px solid var(--c-line);box-shadow:0 18px 40px -30px rgba(10,70,68,.4)}

/* Таблица цен — светлая */
.prices-wrap{background:#fff;border:1px solid var(--c-line);box-shadow:var(--shadow)}
.prices-table th{background:var(--c-bg-2);color:var(--c-muted)}
.prices-table tr:hover td{background:rgba(10,186,181,.06)}

/* Портфолио */
.project{background:var(--c-bg-2)}

/* CTA-блок — фирменный tiffany-градиент, текст белый */
.cta-band{background:linear-gradient(135deg,#0abab5,#0b938f);border:0}
.cta-band::before{background:radial-gradient(circle,rgba(255,255,255,.28),transparent 60%)}
.cta-band h2{color:#fff}
.cta-band p{color:rgba(255,255,255,.92)}
.cta-form input,.cta-form textarea{background:rgba(255,255,255,.16)!important;border:1px solid rgba(255,255,255,.4)!important;color:#fff!important}
.cta-form input::placeholder,.cta-form textarea::placeholder{color:rgba(255,255,255,.8)}
.cta-form input:focus,.cta-form textarea:focus{border-color:#fff!important;background:rgba(255,255,255,.24)!important}
.cta-form .btn-primary{background:#fff;color:var(--tiffany-deep);box-shadow:0 14px 30px -10px rgba(0,0,0,.25)}
.cta-form .btn-primary:hover{background:#fff;color:var(--tiffany-deep);transform:translateY(-3px)}
.cta-band .contact-method{color:rgba(255,255,255,.9)!important}
.cta-band .form-consent{color:rgba(255,255,255,.85)!important}
.cta-band .form-consent a{color:#fff!important}
.cta-band .form-result{color:rgba(255,255,255,.9)!important}
.cm-opt{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.35);color:#fff}
.cm-opt:hover{background:rgba(255,255,255,.22)}
.cm-opt:has(input:checked){background:rgba(255,255,255,.9);border-color:#fff;color:var(--tiffany-deep)}

/* Футер — светлый, с tiffany-акцентами */
.site-footer{background:var(--c-bg-2);border-top:1px solid var(--c-line)}
.footer-grid li a{color:var(--c-muted)}
.footer-grid li a:hover{color:var(--c-accent-2)}
.footer-bottom{color:var(--c-muted)}

/* FAQ — светлые карточки */
.faq-list{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:#fff;border:1px solid var(--c-line);border-radius:14px;padding:4px 20px;transition:border-color .2s,box-shadow .2s;box-shadow:0 12px 30px -26px rgba(10,70,68,.5)}
.faq-item[open]{border-color:var(--c-accent)}
.faq-q{cursor:pointer;list-style:none;padding:16px 28px 16px 0;position:relative;font-weight:600;font-size:16px;color:var(--c-text);outline:none}
.faq-q::-webkit-details-marker{display:none}
.faq-q::after{content:"+";position:absolute;right:0;top:50%;transform:translateY(-50%);font-size:24px;font-weight:400;color:var(--c-accent);transition:transform .2s}
.faq-item[open] .faq-q::after{content:"\2013"}
.faq-a{padding:0 0 18px;color:var(--c-muted);line-height:1.65;font-size:15px}
@media(max-width:560px){.faq-q{font-size:15px}}

/* Плавающая кнопка звонка */
.fc-call{background:linear-gradient(135deg,#0abab5,#0b938f)}

/* Cookie-плашка — светлая */
.sk-cookie{position:fixed;left:16px;right:16px;bottom:16px;z-index:9999;max-width:680px;margin:0 auto;display:flex;gap:14px;align-items:center;flex-wrap:wrap;justify-content:space-between;background:#fff;border:1px solid var(--c-line);border-radius:14px;padding:16px 18px;box-shadow:0 18px 50px -18px rgba(10,70,68,.4)}
.sk-cookie[hidden]{display:none}
.sk-cookie__text{flex:1 1 320px;color:var(--c-muted);font-size:13px;line-height:1.5}
.sk-cookie__text a{color:var(--c-accent-2);text-decoration:underline}
.sk-cookie__btn{flex:0 0 auto;cursor:pointer;border:0;border-radius:10px;background:var(--c-accent);color:#fff;font-weight:700;font-size:14px;padding:12px 26px;font-family:inherit}
.sk-cookie__btn:hover{opacity:.9}
@media(max-width:560px){.sk-cookie{flex-direction:column;align-items:stretch}.sk-cookie__btn{width:100%}}

/* Логотип-картинка в шапке/футере */
.brand-logo{width:40px;height:40px;border-radius:10px;object-fit:cover;display:block;box-shadow:0 8px 20px -8px rgba(10,120,116,.6)}
.site-footer .brand-logo{width:44px;height:44px}

/* Разделы со статьями (блог) */
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.article-card{background:#fff;border:1px solid var(--c-line);border-radius:16px;overflow:hidden;box-shadow:0 18px 40px -30px rgba(10,70,68,.4);transition:transform var(--t),box-shadow var(--t);display:flex;flex-direction:column}
.article-card:hover{transform:translateY(-4px);box-shadow:0 26px 54px -26px rgba(10,120,116,.4)}
.article-card .ac-img{aspect-ratio:16/10;background:var(--c-bg-2) center/cover}
.article-card .ac-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.article-card .ac-tag{font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--c-accent-2);font-weight:700}
.article-card h3{margin:0;font-size:18px;line-height:1.3}
.article-card p{margin:0;color:var(--c-muted);font-size:14px;flex:1}
.article-card .ac-more{color:var(--c-accent-2);font-weight:600;font-size:14px}
@media(max-width:1024px){.article-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.article-grid{grid-template-columns:1fr}}

/* Типографика статьи */
.article-body{max-width:760px;margin:0 auto;font-size:17px;line-height:1.75;color:var(--c-text)}
.article-body h2{font-size:26px;margin:38px 0 14px;color:var(--c-text)}
.article-body h3{font-size:20px;margin:28px 0 10px}
.article-body p{margin:0 0 18px}
.article-body ul,.article-body ol{margin:0 0 18px 22px;display:flex;flex-direction:column;gap:8px}
.article-body a{color:var(--c-accent-2);text-decoration:underline}
.article-body blockquote{margin:22px 0;padding:16px 22px;border-left:4px solid var(--c-accent);background:var(--c-bg-2);border-radius:0 12px 12px 0;color:var(--c-text)}
.article-hero{padding:130px 0 30px;background:var(--c-bg-2)}
.breadcrumbs{font-size:13px;color:var(--c-muted);margin-bottom:14px}
.breadcrumbs a{color:var(--c-accent-2)}

/* Заглушка калькулятора */
.calc-placeholder{border:2px dashed var(--c-accent);border-radius:24px;background:var(--c-bg-2);padding:60px 30px;text-align:center;max-width:900px;margin:0 auto}
.calc-placeholder .cp-ic{font-size:52px;line-height:1}
.calc-placeholder h3{font-size:24px;margin:16px 0 8px;color:var(--c-text)}
.calc-placeholder p{color:var(--c-muted);max-width:520px;margin:0 auto 24px}

/* Легальные страницы */
.legal-content{max-width:820px;margin:0 auto}
.legal-content h2{color:var(--c-text);font-size:22px;margin:28px 0 10px}
.legal-content p{margin:0 0 14px;color:var(--c-text)}
.legal-content ul{margin:10px 0 14px 20px;display:flex;flex-direction:column;gap:6px}
.legal-content a{color:var(--c-accent-2);text-decoration:underline}

/* Фикс остаточных оранжевых hover-акцентов на карточках преимуществ */
.feature:hover{border-color:rgba(10,186,181,.45)}
.feature::before{background:linear-gradient(135deg,rgba(10,186,181,.16),rgba(10,186,181,.04))}