/* ============================================================
   DIAGPRO LANDING — design system
   Портирован с design-токенов theme/diagpro (dark / industrial).
   Меняются только данные (data/seed-data.json), не эти токены —
   так все брендовые лендинги остаются визуально одним семейством.
   ============================================================ */
:root {
  --bg-0: #0E0F12; --bg-1: #15171C; --bg-2: #1B1E24; --surface: #20242C; --surface-2: #272C35;
  --line: rgba(255,255,255,0.08); --line-strong: rgba(255,255,255,0.16);
  --accent: #FF7A00; --accent-2: #FFB300; --accent-ink: #0E0F12; --accent-glow: color-mix(in srgb, var(--accent) 40%, transparent);
  --white: #FFFFFF; --text: #E6E8EC; --text-dim: #8A909A; --text-faint: #5C626C;
  --font-display: 'Oswald', sans-serif; --font-body: 'Manrope', sans-serif; --font-tech: 'Space Grotesk', 'Manrope', monospace;
  --radius: 3px; --radius-lg: 4px; --container: 1280px; --gutter: 32px;
  --section-pad: 112px; --card-pad: 28px; --ease: cubic-bezier(.2,.7,.2,1);
}
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { font-family: var(--font-body); background: var(--bg-0); color: var(--text); line-height: 1.6; font-size: 17px; letter-spacing: .005em; -webkit-font-smoothing: antialiased; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; background: none; border: 0; }
ul { list-style: none; padding: 0; }
::selection { background: var(--accent); color: var(--accent-ink); }
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--gutter); }
.section { padding-block: var(--section-pad); position: relative; }
.section--alt { background: var(--bg-1); }
.section--line { border-top: 1px solid var(--line); }
.display, h1, h2, h3 { font-family: var(--font-display); font-weight: 600; color: var(--white); line-height: 1.02; letter-spacing: .01em; text-transform: uppercase; }
h1 { font-size: clamp(40px, 5.6vw, 76px); }
h2 { font-size: clamp(32px, 3.6vw, 50px); }
h3 { font-size: clamp(20px, 1.7vw, 26px); }
.lead { font-size: clamp(17px, 1.35vw, 20px); color: var(--text-dim); line-height: 1.55; max-width: 60ch; }
.eyebrow { font-family: var(--font-tech); font-size: 13px; font-weight: 500; letter-spacing: .22em; text-transform: uppercase; color: var(--accent); display: inline-flex; align-items: center; gap: 12px; }
.eyebrow::before { content: ""; width: 28px; height: 1px; background: var(--accent); display: inline-block; }
.eyebrow--center { justify-content: center; }
.section-head { max-width: 720px; }
.section-head .lead { margin-top: 18px; }
.section-head h2 { margin-top: 18px; }
.section-head--center { margin-inline: auto; text-align: center; }
.dtc { font-family: var(--font-tech); font-size: 13px; font-weight: 500; letter-spacing: .06em; color: var(--accent-2); border: 1px solid var(--line-strong); background: rgba(255,179,0,.06); padding: 4px 9px; border-radius: 2px; white-space: nowrap; }
.btn { display: inline-flex; align-items: center; gap: 10px; font-family: var(--font-tech); font-weight: 500; font-size: 14px; letter-spacing: .08em; text-transform: uppercase; padding: 15px 26px; border-radius: var(--radius); border: 1px solid transparent; transition: transform .18s var(--ease), box-shadow .25s var(--ease), background .2s, border-color .2s, color .2s; white-space: nowrap; }
.btn svg { width: 16px; height: 16px; }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px -6px var(--accent-glow), 0 0 22px -4px var(--accent-glow); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--line-strong); }
.btn-ghost:hover { border-color: var(--accent); color: var(--white); transform: translateY(-2px); }
.btn-lg { padding: 18px 32px; font-size: 15px; }

/* header */
.site-header { position: sticky; top: 0; z-index: 60; background: color-mix(in srgb, var(--bg-0) 82%, transparent); backdrop-filter: blur(14px); border-bottom: 1px solid var(--line); }
.site-header__inner { display: flex; align-items: center; gap: 28px; height: 76px; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-family: var(--font-display); font-weight: 700; font-size: 23px; letter-spacing: .04em; text-transform: uppercase; color: var(--white); }
.brand__mark { width: 30px; height: 30px; display: grid; place-items: center; background: var(--accent); color: var(--accent-ink); border-radius: 3px; font-size: 18px; font-weight: 700; clip-path: polygon(0 0, 100% 0, 100% 70%, 70% 100%, 0 100%); }
.brand span { color: var(--accent); }
.main-nav { display: flex; gap: 4px; margin-left: 14px; }
.main-nav a { font-family: var(--font-tech); font-size: 13.5px; letter-spacing: .04em; color: var(--text-dim); padding: 8px 14px; border-radius: var(--radius); transition: color .18s; }
.main-nav a:hover { color: var(--white); }
.header-cta { display: flex; align-items: center; gap: 20px; margin-left: auto; }
.header-phone { font-family: var(--font-tech); font-size: 15px; font-weight: 500; color: var(--white); letter-spacing: .02em; white-space: nowrap; }
.header-phone small { display: block; font-size: 10.5px; letter-spacing: .18em; text-transform: uppercase; color: var(--text-faint); }
.burger { display: none; width: 40px; height: 40px; }
.burger span { display: block; width: 22px; height: 2px; background: var(--white); margin: 5px auto; transition: .25s; }
.mobile-nav { display: none; }
@media (max-width: 1040px) {
  .main-nav, .header-phone { display: none; }
  .burger { display: block; }
  .mobile-nav {
    display: block; position: fixed; inset: 76px 0 auto 0; z-index: 55;
    background: var(--bg-1); border-bottom: 1px solid var(--line);
    transform: translateY(-120%); transition: transform .3s var(--ease);
    padding: 16px var(--gutter) 28px;
  }
  .mobile-nav.open { transform: none; }
  .mobile-nav a { display: block; padding: 14px 0; border-bottom: 1px solid var(--line); font-family: var(--font-tech); letter-spacing: .03em; color: var(--text); }
  .mobile-nav .btn { margin-top: 18px; width: 100%; justify-content: center; }
  .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; overflow: hidden; border-bottom: 1px solid var(--line); background: var(--bg-0); }
.hero__bg { position: absolute; inset: 0; z-index: 0; }
.hero__photo { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero__photo img { width: 100%; height: 100%; object-fit: cover; }
.hero__overlay { position: absolute; inset: 0; background: linear-gradient(105deg, var(--bg-0) 8%, color-mix(in srgb, var(--bg-0) 72%, transparent) 48%, color-mix(in srgb, var(--accent) 14%, transparent) 100%), linear-gradient(0deg, var(--bg-0) 2%, transparent 40%); }
.hero__grid { position: absolute; inset: 0; background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px); background-size: 54px 54px; mask-image: radial-gradient(120% 90% at 70% 30%, #000 30%, transparent 78%); }
.hero__glow { position: absolute; top: -10%; right: 4%; width: 620px; height: 620px; background: radial-gradient(circle, var(--accent-glow) 0%, transparent 62%); filter: blur(8px); opacity: .55; }
.hero__inner { position: relative; z-index: 2; padding-block: 132px 124px; }
.hero__content { max-width: 760px; }
.hero h1 { margin-top: 22px; }
.hero h1 em { color: var(--accent); font-style: normal; }
.hero .lead { margin-top: 26px; font-size: clamp(18px, 1.5vw, 22px); color: var(--text); }
.hero__actions { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 38px; }
.hero__readout { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 42px; }
.hero__readout .dtc { background: rgba(0,0,0,.35); }
@media (max-width: 860px) { .hero__inner { padding-block: 92px 80px; } }

/* USP cards */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.svc-card { position: relative; background: var(--bg-1); padding: 36px 28px 32px; border: 1px solid var(--line); border-radius: var(--radius-lg); transition: background .22s, transform .22s var(--ease); overflow: hidden; }
.svc-card::after { content: ""; position: absolute; left: 0; top: 0; height: 3px; width: 0; background: var(--accent); transition: width .3s var(--ease); }
.svc-card:hover { background: var(--bg-2); transform: translateY(-3px); }
.svc-card:hover::after { width: 100%; }
.svc-card__icon { width: 52px; height: 52px; display: grid; place-items: center; border: 1px solid var(--line-strong); border-radius: var(--radius); color: var(--accent); margin-bottom: 22px; background: var(--bg-0); }
.svc-card:hover .svc-card__icon { border-color: var(--accent); box-shadow: 0 0 18px -6px var(--accent-glow); }
.svc-card__icon svg { width: 26px; height: 26px; }
.svc-card h3 { font-size: 21px; margin-bottom: 12px; }
.svc-card p { color: var(--text-dim); font-size: 15.5px; }
@media (max-width: 860px) { .grid-3 { grid-template-columns: 1fr; } }

/* split (о бренде) */
.split { display: grid; grid-template-columns: 1.05fr .95fr; gap: 64px; align-items: center; }
.split__media { position: relative; }
.split__media img { width: 100%; height: 460px; object-fit: cover; border: 1px solid var(--line); border-radius: var(--radius-lg); }
.split__tag { position: absolute; left: 18px; bottom: 18px; display: flex; gap: 8px; flex-wrap: wrap; }
.measure-list { display: grid; gap: 2px; margin-top: 30px; }
.measure-list li { display: flex; gap: 16px; align-items: flex-start; padding: 16px 0; border-bottom: 1px solid var(--line); }
.measure-list li svg { width: 20px; height: 20px; color: var(--accent); flex: none; margin-top: 3px; }
.measure-list b { color: var(--white); font-weight: 700; }
.measure-list span { color: var(--text-dim); font-size: 15px; }
@media (max-width: 1080px) { .split { grid-template-columns: 1fr; gap: 40px; } }
@media (max-width: 860px) { .split__media img { height: 300px; } }

/* video */
.video-frame { position: relative; border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; aspect-ratio: 16/9; background: var(--bg-2); }
.video-frame iframe { width: 100%; height: 100%; border: 0; }

/* steps */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
.step { position: relative; padding: 34px 30px 34px 0; border-top: 2px solid var(--line); }
.step:not(:last-child) { padding-right: 36px; }
.step__num { font-family: var(--font-tech); font-weight: 700; font-size: 15px; color: var(--accent-ink); background: var(--accent); width: 38px; height: 38px; display: grid; place-items: center; border-radius: 2px; margin-top: -53px; margin-bottom: 22px; }
.step h3 { font-size: 19px; margin-bottom: 10px; }
.step p { color: var(--text-dim); font-size: 15px; }
@media (max-width: 1080px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .steps { grid-template-columns: 1fr; } }

/* pricing */
.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 44px; }
.price-card { background: var(--bg-1); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 30px 28px; transition: transform .22s var(--ease), border-color .22s; }
.price-card:hover { transform: translateY(-3px); border-color: var(--line-strong); }
.price-card h3 { font-size: 19px; margin-bottom: 10px; }
.price-card p { color: var(--text-dim); font-size: 14.5px; margin-bottom: 20px; min-height: 44px; }
.price-card .from { font-family: var(--font-tech); font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--text-faint); }
.price-card .amount { font-family: var(--font-display); font-size: 32px; color: var(--white); margin-top: 4px; }
.price-card .amount sup { color: var(--accent); font-size: 15px; }
.price-note { margin-top: 20px; font-size: 13.5px; color: var(--text-faint); }
@media (max-width: 900px) { .price-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .price-grid { grid-template-columns: 1fr; } }

/* портфолио */
.grid-3.works { gap: 20px; }
.work-card { position: relative; border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--line); aspect-ratio: 4/3; }
.work-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s var(--ease); }
.work-card:hover img { transform: scale(1.05); }
.work-card__tag { position: absolute; left: 14px; bottom: 14px; }

/* cta band */
.cta-band { position: relative; overflow: hidden; background: linear-gradient(100deg, var(--bg-1) 30%, color-mix(in srgb, var(--accent) 22%, var(--bg-1)) 100%); border-block: 1px solid var(--line); }
.cta-band__glow { position: absolute; right: -6%; top: -40%; width: 560px; height: 560px; background: radial-gradient(circle, var(--accent-glow) 0%, transparent 60%); }
.cta-band__inner { position: relative; z-index: 2; display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px; align-items: center; }
.cta-band h2 { font-size: clamp(30px, 3.4vw, 46px); }
.cta-band .lead { color: var(--text); margin-top: 16px; }
.cta-form { display: grid; gap: 14px; background: var(--bg-0); border: 1px solid var(--line-strong); padding: 30px; border-radius: var(--radius-lg); }
.field { display: flex; flex-direction: column; gap: 7px; }
.field label { font-family: var(--font-tech); font-size: 11.5px; letter-spacing: .12em; text-transform: uppercase; color: var(--text-dim); }
.input { background: var(--bg-1); border: 1px solid var(--line-strong); color: var(--text); padding: 13px 15px; border-radius: var(--radius); font-family: var(--font-body); font-size: 15px; width: 100%; }
.input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent); }
.input::placeholder { color: var(--text-faint); }
@media (max-width: 1080px) { .cta-band__inner { grid-template-columns: 1fr; gap: 40px; } }

/* контакты */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.contact-meta { display: grid; gap: 2px; }
.contact-meta .row { display: flex; gap: 18px; align-items: flex-start; padding: 22px 0; border-bottom: 1px solid var(--line); }
.contact-meta .row svg { width: 22px; height: 22px; color: var(--accent); flex: none; }
.contact-meta small { font-family: var(--font-tech); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--text-faint); display: block; margin-bottom: 5px; }
.contact-meta b { color: var(--white); font-weight: 600; font-size: 17px; }
.map-stub { position: relative; height: 320px; border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; background: linear-gradient(0deg, var(--bg-0), transparent), repeating-linear-gradient(0deg, var(--line) 0 1px, transparent 1px 44px), repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px 44px), var(--bg-1); display: grid; place-items: center; }
.map-stub__pin { color: var(--accent); display: grid; place-items: center; gap: 10px; font-family: var(--font-tech); font-size: 13px; letter-spacing: .1em; text-transform: uppercase; text-align: center; padding: 0 20px; }
@media (max-width: 1080px) { .contact-grid { grid-template-columns: 1fr; gap: 40px; } }

/* footer */
.site-footer { background: var(--bg-1); border-top: 1px solid var(--line); padding-block: 72px 36px; }
.footer-top { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 40px; }
.footer-brand .lead { font-size: 15px; margin-top: 18px; max-width: 38ch; }
.footer-col h4 { font-family: var(--font-tech); font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--text-faint); margin-bottom: 18px; }
.footer-col li { margin-bottom: 11px; }
.footer-col a { color: var(--text-dim); font-size: 15px; }
.footer-col a:hover { color: var(--accent); }
.footer-bottom { display: flex; flex-wrap: wrap; gap: 18px; justify-content: space-between; align-items: center; margin-top: 56px; padding-top: 28px; border-top: 1px solid var(--line); font-family: var(--font-tech); font-size: 12.5px; color: var(--text-faint); }
@media (max-width: 700px) { .footer-top { grid-template-columns: 1fr; } }