/* ===== МЕДПРОМТОРГ — design tokens ===== */
:root {
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.0625rem);
  --text-lg: clamp(1.125rem, 1rem + 0.6vw, 1.375rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.1vw, 2.125rem);
  --text-2xl: clamp(2rem, 1.3rem + 2.4vw, 3.375rem);

  --space-1: .25rem; --space-2: .5rem; --space-3: .75rem; --space-4: 1rem;
  --space-5: 1.25rem; --space-6: 1.5rem; --space-8: 2rem; --space-10: 2.5rem;
  --space-12: 3rem; --space-16: 4rem; --space-20: 5rem; --space-24: 6rem; --space-32: 8rem;

  --radius-sm: .375rem; --radius-md: .625rem; --radius-lg: 1rem; --radius-full: 9999px;
  --content-wide: 1220px;
  --content-default: 940px;
  --transition: 220ms cubic-bezier(.16,1,.3,1);

  --font-display: 'Manrope', 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;
}

/* light */
:root, [data-theme="light"] {
  --color-bg: #f6f8fa;
  --color-surface: #ffffff;
  --color-surface-2: #f0f4f8;
  --color-surface-offset: #e8eef4;
  --color-ink: #0b1d2e;
  --color-ink-soft: #12324c;
  --color-text: #17232e;
  --color-text-muted: #5b7183;
  --color-text-faint: #93a5b3;
  --color-text-inverse: #f4f8fb;
  --color-border: #dae3ec;
  --color-divider: #e6edf3;
  --color-primary: #1668ab;
  --color-primary-hover: #10537f;
  --color-primary-soft: #e3eef8;
  --shadow-sm: 0 1px 2px rgba(11,29,46,.06);
  --shadow-md: 0 6px 20px rgba(11,29,46,.08);
  --shadow-lg: 0 22px 60px rgba(11,29,46,.14);
}
[data-theme="dark"] {
  --color-bg: #0a141d;
  --color-surface: #10202c;
  --color-surface-2: #142734;
  --color-surface-offset: #17303f;
  --color-ink: #061019;
  --color-ink-soft: #0d2130;
  --color-text: #dbe7ef;
  --color-text-muted: #8fa6b6;
  --color-text-faint: #5e7688;
  --color-text-inverse: #061019;
  --color-border: #223b4c;
  --color-divider: #1b3040;
  --color-primary: #57a8e0;
  --color-primary-hover: #7bbdea;
  --color-primary-soft: #14293a;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.4);
  --shadow-md: 0 6px 20px rgba(0,0,0,.45);
  --shadow-lg: 0 22px 60px rgba(0,0,0,.55);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
h1,h2,h3,h4 { font-family: var(--font-display); line-height: 1.15; letter-spacing: -.02em; margin: 0; font-weight: 700; }
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }

.wrap { width: 100%; max-width: var(--content-wide); margin-inline: auto; padding-inline: clamp(var(--space-5), 4vw, var(--space-10)); }
section { padding-block: clamp(var(--space-16), 8vw, var(--space-32)); }
section.alt { background: var(--color-surface-2); border-block: 1px solid var(--color-border); }
.section-head { max-width: 62ch; margin-bottom: clamp(var(--space-8), 4vw, var(--space-16)); }
.eyebrow {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-size: var(--text-xs); font-weight: 600; letter-spacing: .14em; text-transform: uppercase;
  color: var(--color-primary); margin-bottom: var(--space-4);
}
.eyebrow::before { content:''; width: 24px; height: 1px; background: currentColor; }
h2.section-title { font-size: var(--text-xl); margin-bottom: var(--space-4); }
.section-sub { color: var(--color-text-muted); font-size: var(--text-base); }

/* ===== header ===== */
.header {
  position: sticky; top: 0; z-index: 60;
  background: color-mix(in oklab, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), background var(--transition);
}
.header--scrolled { border-bottom-color: var(--color-divider); box-shadow: var(--shadow-sm); }
.header__inner { display: flex; align-items: center; gap: var(--space-6); min-height: 74px; }
.brand { display: flex; align-items: center; gap: var(--space-3); text-decoration: none; flex-shrink: 0; }
.brand__mark { color: var(--color-primary); flex-shrink: 0; }
.brand__name { font-family: var(--font-display); font-weight: 800; font-size: 1.0625rem; letter-spacing: .04em; line-height: 1.1; }
.brand__tag { display: block; font-family: var(--font-body); font-weight: 500; font-size: .6875rem; letter-spacing: .1em; text-transform: uppercase; color: var(--color-text-faint); }
.nav { display: flex; gap: var(--space-6); margin-left: auto; }
.nav a { font-size: var(--text-sm); text-decoration: none; color: var(--color-text-muted); transition: color var(--transition); white-space: nowrap; }
.nav a:hover { color: var(--color-primary); }
.header__actions { display: flex; align-items: center; gap: var(--space-3); margin-left: var(--space-4); }
.icon-btn {
  display: grid; place-items: center; width: 38px; height: 38px; flex-shrink: 0;
  border: 1px solid var(--color-border); border-radius: var(--radius-full);
  background: var(--color-surface); color: var(--color-text-muted); cursor: pointer;
  transition: color var(--transition), border-color var(--transition);
}
.icon-btn:hover { color: var(--color-primary); border-color: var(--color-primary); }
.nav-toggle { display: none; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  padding: .7rem 1.35rem; border-radius: var(--radius-full);
  font-family: var(--font-body); font-size: var(--text-sm); font-weight: 600;
  text-decoration: none; border: 1px solid transparent; cursor: pointer; white-space: nowrap;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
}
.btn:hover { transform: translateY(-1px); }
.btn--primary { background: var(--color-primary); color: #fff; }
.btn--primary:hover { background: var(--color-primary-hover); }
.btn--ghost { border-color: color-mix(in oklab, currentColor 35%, transparent); color: inherit; }
.btn--ghost:hover { border-color: currentColor; }
.btn--light { background: rgba(255,255,255,.1); color: #fff; border-color: rgba(255,255,255,.35); }
.btn--light:hover { background: rgba(255,255,255,.2); }

/* ===== hero ===== */
.hero { position: relative; padding: 0; background: var(--color-ink); color: #eaf2f8; overflow: hidden; }
.hero__media { position: absolute; inset: 0; }
.hero__media img { width: 100%; height: 100%; object-fit: cover; opacity: .5; }
.hero__media::after {
  content:''; position: absolute; inset: 0;
  background:
    linear-gradient(105deg, rgba(6,16,25,.96) 0%, rgba(6,16,25,.86) 42%, rgba(6,16,25,.35) 100%),
    linear-gradient(to top, rgba(6,16,25,.9), transparent 45%);
}
.hero__inner { position: relative; padding-block: clamp(var(--space-20), 12vw, var(--space-32)); }
.hero__content { max-width: 720px; }
.hero__eyebrow { color: #7fc0ee; }
.hero h1 { font-size: var(--text-2xl); font-weight: 800; margin-bottom: var(--space-6); color: #fff; }
.hero h1 em { font-style: normal; color: #7fc0ee; }
.hero__lead { font-size: var(--text-lg); color: #b8cddc; max-width: 58ch; margin-bottom: var(--space-8); line-height: 1.5; }
.hero__cta { display: flex; flex-wrap: wrap; gap: var(--space-3); }
.hero__stats {
  position: relative; display: grid; grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid rgba(255,255,255,.14);
}
.hero__stats li { padding: var(--space-6) var(--space-6) var(--space-8) 0; }
.hero__stats li + li { padding-left: var(--space-6); border-left: 1px solid rgba(255,255,255,.14); }
.stat__num { font-family: var(--font-display); font-size: clamp(1.5rem, 1rem + 1.6vw, 2.25rem); font-weight: 800; color: #fff; letter-spacing: -.03em; line-height: 1.1; }
.stat__label { font-size: var(--text-xs); color: #94b2c6; margin-top: var(--space-1); }

/* ===== generic cards ===== */
.grid { display: grid; gap: var(--space-5); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); padding: var(--space-6);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.card:hover { border-color: color-mix(in oklab, var(--color-primary) 45%, var(--color-border)); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.card__icon { color: var(--color-primary); margin-bottom: var(--space-4); }
.card h3 { font-size: var(--text-lg); margin-bottom: var(--space-2); }
.card p { color: var(--color-text-muted); font-size: var(--text-sm); }

/* about split */
.split { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(var(--space-8), 5vw, var(--space-20)); align-items: center; }
.split__media img { border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }
.split p + p { margin-top: var(--space-4); }
.split p { color: var(--color-text-muted); }
.facts { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-4); margin-top: var(--space-8); }
.fact { padding: var(--space-4) var(--space-5); border-left: 2px solid var(--color-primary); background: var(--color-surface); border-radius: 0 var(--radius-md) var(--radius-md) 0; }
.fact__num { font-family: var(--font-display); font-weight: 800; font-size: var(--text-lg); color: var(--color-text); }
.fact__label { font-size: var(--text-xs); color: var(--color-text-muted); }

/* equipment list */
.equip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--color-border); border: 1px solid var(--color-border); border-radius: var(--radius-lg); overflow: hidden; }
.equip__item { background: var(--color-surface); padding: var(--space-6); transition: background var(--transition); }
.equip__item:hover { background: var(--color-surface-2); }
.equip__item h3 { font-size: var(--text-base); font-weight: 700; margin-bottom: var(--space-2); display: flex; align-items: center; gap: var(--space-3); }
.equip__item h3 svg { color: var(--color-primary); flex-shrink: 0; }
.equip__item p { font-size: var(--text-sm); color: var(--color-text-muted); }

/* dark band */
.band { background: var(--color-ink); color: #dceaf4; }
.band .section-title, .band h3 { color: #fff; }
.band .section-sub, .band p { color: #a6c0d1; }
.band .eyebrow { color: #7fc0ee; }
.band .card { background: rgba(255,255,255,.045); border-color: rgba(255,255,255,.12); }
.band .card:hover { border-color: rgba(127,192,238,.5); }
.band .card p { color: #a6c0d1; }
.band .card__icon { color: #7fc0ee; }

/* projects table */
.projects { border: 1px solid var(--color-border); border-radius: var(--radius-lg); overflow: hidden; background: var(--color-surface); }
.project-row { display: grid; grid-template-columns: 1fr auto; gap: var(--space-4) var(--space-8); padding: var(--space-5) var(--space-6); align-items: baseline; }
.project-row + .project-row { border-top: 1px solid var(--color-divider); }
.project-row__name { font-weight: 600; font-size: var(--text-sm); }
.project-row__meta { font-size: var(--text-xs); color: var(--color-text-muted); margin-top: var(--space-1); }
.project-row__sum { font-family: var(--font-display); font-weight: 700; font-size: var(--text-sm); color: var(--color-primary); white-space: nowrap; }
.band .projects { background: rgba(255,255,255,.04); border-color: rgba(255,255,255,.12); }
.band .project-row { transition: background var(--transition); }
.band .project-row:hover { background: rgba(255,255,255,.04); }
.band .project-row + .project-row { border-top-color: rgba(255,255,255,.1); }
.band .project-row__name { color: #eaf3f9; }
.band .project-row__meta { color: #8fa9bb; }
.band .project-row__sum { color: #7fc0ee; }

/* partners */
.partners { display: flex; flex-wrap: wrap; gap: var(--space-3); }
.partners li {
  padding: .55rem 1.05rem; border: 1px solid var(--color-border); border-radius: var(--radius-full);
  font-size: var(--text-sm); font-weight: 500; color: var(--color-text-muted); background: var(--color-surface);
  transition: color var(--transition), border-color var(--transition);
}
.partners li:hover { color: var(--color-primary); border-color: var(--color-primary); }
.band .partners li { background: rgba(255,255,255,.045); border-color: rgba(255,255,255,.14); color: #c2d7e5; }
.band .partners li:hover { color: #fff; border-color: #7fc0ee; }

/* support program numbered */
.steps { counter-reset: s; display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-5); }
.step { display: grid; grid-template-columns: auto 1fr; gap: var(--space-5); padding: var(--space-5) 0; border-top: 1px solid var(--color-divider); }
.step__num { counter-increment: s; font-family: var(--font-display); font-weight: 700; font-size: var(--text-sm); color: var(--color-primary); padding-top: .15rem; }
.step__num::before { content: '0' counter(s); }
.step h3 { font-size: var(--text-base); margin-bottom: var(--space-1); }
.step p { font-size: var(--text-sm); color: var(--color-text-muted); }

.note {
  margin-top: var(--space-10); padding: var(--space-5) var(--space-6);
  border-radius: var(--radius-md); background: var(--color-primary-soft);
  font-size: var(--text-sm); color: var(--color-text-muted); border-left: 3px solid var(--color-primary);
}
.band .note { background: rgba(127,192,238,.08); border-left-color: #7fc0ee; color: #a6c0d1; }

/* process */
.process { display: grid; grid-template-columns: repeat(5, 1fr); gap: var(--space-5); }
.process__item { position: relative; padding-top: var(--space-6); border-top: 2px solid var(--color-border); }
.process__item::before { content:''; position: absolute; top: -5px; left: 0; width: 8px; height: 8px; border-radius: 50%; background: var(--color-primary); }
.process__step { font-size: var(--text-xs); letter-spacing: .12em; text-transform: uppercase; color: var(--color-primary); font-weight: 600; }
.process__item h3 { font-size: var(--text-base); margin: var(--space-2) 0; }
.process__item p { font-size: var(--text-sm); color: var(--color-text-muted); }

/* quote */
.quote { max-width: 900px; margin-inline: auto; text-align: center; }
.quote blockquote { margin: 0; font-family: var(--font-display); font-size: var(--text-xl); font-weight: 600; line-height: 1.35; letter-spacing: -.02em; }
.quote figcaption { margin-top: var(--space-6); font-size: var(--text-sm); color: var(--color-text-muted); }
.band .quote blockquote { color: #fff; }

/* contacts */
.contact { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(var(--space-8), 5vw, var(--space-16)); }
.contact__list { display: grid; gap: var(--space-6); }
.contact__item { display: grid; grid-template-columns: auto 1fr; gap: var(--space-4); align-items: start; }
.contact__item svg { color: var(--color-primary); margin-top: .2rem; }
.contact__label { font-size: var(--text-xs); text-transform: uppercase; letter-spacing: .1em; color: var(--color-text-faint); }
.contact__value { font-size: var(--text-base); font-weight: 600; text-decoration: none; }
.contact__value:hover { color: var(--color-primary); }
.contact__value--sm { font-weight: 500; font-size: var(--text-sm); color: var(--color-text-muted); }
.req { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-6) var(--space-8); }
.req h3 { font-size: var(--text-base); margin-bottom: var(--space-5); }
.req dl { display: grid; grid-template-columns: auto 1fr; gap: var(--space-3) var(--space-6); margin: 0; font-size: var(--text-sm); }
.req dt { color: var(--color-text-muted); }
.req dd { margin: 0; font-weight: 500; }

/* cta band */
.cta-band { background: linear-gradient(135deg, #10405f 0%, #1668ab 100%); color: #fff; border-radius: var(--radius-lg); padding: clamp(var(--space-8), 5vw, var(--space-16)); display: grid; grid-template-columns: 1fr auto; gap: var(--space-8); align-items: center; }
.cta-band h2 { font-size: var(--text-xl); color: #fff; margin-bottom: var(--space-3); }
.cta-band p { color: rgba(255,255,255,.82); font-size: var(--text-sm); max-width: 56ch; }
.cta-band__actions { display: flex; flex-wrap: wrap; gap: var(--space-3); }
.cta-band .btn--primary { background: #fff; color: #10405f; }
.cta-band .btn--primary:hover { background: #e6f1f9; }

/* footer */
.footer { background: var(--color-ink); color: #8fadc1; padding-block: var(--space-16) var(--space-8); font-size: var(--text-sm); }
.footer__top { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: var(--space-10); padding-bottom: var(--space-10); border-bottom: 1px solid rgba(255,255,255,.1); }
.footer .brand__name { color: #fff; }
.footer h4 { font-size: var(--text-xs); text-transform: uppercase; letter-spacing: .12em; color: #fff; margin-bottom: var(--space-4); font-family: var(--font-body); font-weight: 600; }
.footer li + li { margin-top: var(--space-2); }
.footer a { text-decoration: none; transition: color var(--transition); }
.footer a:hover { color: #7fc0ee; }
.footer__about { max-width: 42ch; margin-top: var(--space-4); font-size: var(--text-sm); }
.footer__bottom { padding-top: var(--space-6); display: flex; flex-wrap: wrap; gap: var(--space-4); justify-content: space-between; font-size: var(--text-xs); color: #6d8ba1; }

/* reveal */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s cubic-bezier(.16,1,.3,1), transform .7s cubic-bezier(.16,1,.3,1); }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ===== responsive ===== */
@media (max-width: 1080px) {
  .nav { display: none; }
  .nav-toggle { display: grid; }
  .nav--open {
    display: flex; flex-direction: column; gap: var(--space-1);
    position: absolute; top: 74px; left: 0; right: 0;
    background: var(--color-surface); border-bottom: 1px solid var(--color-border);
    padding: var(--space-4) clamp(var(--space-5), 4vw, var(--space-10)) var(--space-6);
    box-shadow: var(--shadow-md);
  }
  .nav--open a { padding: var(--space-3) 0; border-bottom: 1px solid var(--color-divider); }
  .process { grid-template-columns: repeat(2, 1fr); }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .equip { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
  .hero__stats { grid-template-columns: repeat(2, 1fr); }
  .hero__stats li { padding: var(--space-5) var(--space-4) var(--space-5) 0; }
  .hero__stats li + li { padding-left: 0; border-left: 0; }
  .hero__stats li:nth-child(2), .hero__stats li:nth-child(4) { padding-left: var(--space-5); border-left: 1px solid rgba(255,255,255,.14); }
  .split, .contact, .grid--2, .grid--3, .steps { grid-template-columns: 1fr; }
  .cta-band { grid-template-columns: 1fr; }
  .footer__top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 620px) {
  .grid--4, .equip, .process { grid-template-columns: 1fr; }
  .facts { grid-template-columns: 1fr; }
  .footer__top { grid-template-columns: 1fr; }
  .project-row { grid-template-columns: 1fr; }
  .req { padding: var(--space-5); }
  .req dl { grid-template-columns: 1fr; gap: var(--space-1); }
  .req dt { font-size: var(--text-xs); }
  .req dd + dt { margin-top: var(--space-3); }
}