/* ── Переменные ────────────────────────────────────── */
:root {
  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
  --bg:       #f5f4f0;
  --bg-2:     #eeece7;
  --border:   #dedad2;
  --ink:      #1a1917;
  --ink-2:    #6b6760;
  --ink-3:    #a8a49c;
  --text:     #1a1917;
  --text-2:   #6b6760;
  --text-3:   #a8a49c;
  --accent:   #4f46e5;
  --r:        14px;
  --r-lg:     24px;
  --radius:   14px;
  --radius-lg: 24px;
}

/* ── Reset ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

/* ── Nav ────────────────────────────────────────────── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: 60px;
  display: flex;
  align-items: center;
  background: rgba(245, 244, 240, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 3rem);
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Back link — two naming conventions */
.back,
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--ink-2);
  transition: color 160ms ease, gap 160ms var(--ease-out);
}
@media (hover: hover) and (pointer: fine) {
  .back:hover,
  .back-link:hover { color: var(--ink); gap: 0.375rem; }
}

/* Logo — two naming conventions */
.logo,
.nav-logo {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.025em;
}
.logo span,
.nav-logo span { color: var(--accent); }

/* ── Main layout ───────────────────────────────────── */
main { padding-top: 60px; }
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 3rem);
}

/* ── Project header — two naming conventions ───────── */
.project-header,
.header {
  padding: clamp(2.5rem, 5vw, 4rem) 0 2rem;
}

.project-meta,
.meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.project-niche,
.niche {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

.dot { color: var(--ink-3); }

.project-year,
.year {
  font-size: 0.8125rem;
  color: var(--ink-3);
}

h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.12;
  margin-bottom: 1rem;
}

.project-tagline,
.tagline {
  font-size: 1.0625rem;
  color: var(--ink-2);
  max-width: 600px;
  line-height: 1.7;
}

/* ── Screenshot — two naming conventions ──────────── */
.screenshot-wrap,
.screenshot {
  margin: 2rem 0 3rem;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.08);
}
.screenshot-wrap img,
.screenshot img {
  width: 100%;
  display: block;
}

/* ── Project body — two naming conventions ─────────── */
.project-body,
.body {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 3rem;
  padding-bottom: clamp(3rem, 6vw, 5rem);
}

.project-text h2,
.text h2 {
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}
.project-text p,
.text p {
  font-size: 0.9375rem;
  color: var(--ink-2);
  line-height: 1.75;
  margin-bottom: 1.125rem;
}
.project-text p:last-child,
.text p:last-child { margin-bottom: 0; }

/* ── Sidebar — two naming conventions ──────────────── */
.project-sidebar,
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.sidebar-block,
.sblock {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 1.125rem 1.375rem;
}

.sidebar-label,
.slabel {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 0.5rem;
}

.sidebar-value,
.sval {
  font-size: 0.9375rem;
  color: var(--ink);
  font-weight: 500;
}

.sidebar-tags,
.stags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  margin-top: 0.5rem;
}

.sidebar-tag,
.stag {
  font-size: 0.78rem;
  padding: 0.2rem 0.6rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--ink-2);
}

/* ── Back button ────────────────────────────────────── */
.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: var(--bg-2);
  border: 1.5px solid var(--border);
  border-radius: var(--r);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--ink-2);
  transition: transform 160ms var(--ease-out), color 160ms ease, border-color 160ms ease;
  margin-bottom: 3rem;
}
@media (hover: hover) and (pointer: fine) {
  .back-btn:hover { color: var(--ink); border-color: var(--ink-3); }
}
.back-btn:active { transform: scale(0.97); }

/* ── Responsive ─────────────────────────────────────── */
@media (max-width: 720px) {
  .project-body,
  .body { grid-template-columns: 1fr; }
}