/* ============================================================
   malgana.dev — portfolio
   Dark editorial. Inter (UI) + Source Serif 4 (case titles).
   Один акцент: #2563eb. Без glassmorphism / neon / gradient mesh.
   ============================================================ */

:root {
  --bg:          #0a0a0a;
  --bg-elev:    #111111;
  --bg-elev-2: #161616;
  --line:       #1f1f1f;
  --line-strong:#2a2a2a;

  --text:        #e8e6e1;
  --text-mute:  #a3a098;
  --text-dim:   #6f6c64;

  --accent:      #2563eb;
  --accent-soft:#1e3a8a;

  --serif: "Source Serif 4", ui-serif, Georgia, "Times New Roman", serif;
  --sans:  "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono:  ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --wrap: min(1120px, 92vw);

  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 14px;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

.dim { color: var(--text-mute); }

.wrap { width: var(--wrap); margin-inline: auto; }

/* ===== Header ============================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10,10,10,0.78);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 600;
  letter-spacing: -0.01em;
}
.logo:hover { text-decoration: none; }
.logo-mark {
  width: 14px; height: 14px;
  background: var(--text);
  border-radius: 3px;
  transform: rotate(45deg);
}
.logo-dim { color: var(--text-dim); font-weight: 500; }

.nav {
  display: flex;
  gap: 6px;
}
.nav a {
  color: var(--text-mute);
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  border: 1px solid transparent;
  transition: color .15s ease, background .15s ease, border-color .15s ease;
}
.nav a:hover {
  color: var(--text);
  background: var(--bg-elev);
  border-color: var(--line-strong);
  text-decoration: none;
}

/* ===== Intro =============================================== */

.intro { padding: 80px 0 56px; border-bottom: 1px solid var(--line); }

.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin: 0 0 24px;
}

.intro-title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(34px, 5.4vw, 60px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0 0 24px;
  max-width: 22ch;
}

.intro-sub {
  font-size: 18px;
  color: var(--text-mute);
  max-width: 58ch;
  margin: 0;
}

/* ===== Sections ============================================ */

.section-head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 64px 0 32px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 48px;
}

.section-num {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text-dim);
  letter-spacing: 0.08em;
}

.section-title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(28px, 3.4vw, 40px);
  letter-spacing: -0.02em;
  margin: 0;
}

/* ===== Subgroups (iOS / macOS / Other) ===================== */

.subgroup { padding-bottom: 24px; }
.subgroup + .subgroup {
  margin-top: 56px;
  padding-top: 56px;
  border-top: 1px solid var(--line);
}

.subgroup-head { margin-bottom: 40px; }
.subgroup-title {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text);
  margin: 0 0 8px;
}
.subgroup-sub {
  margin: 0;
  color: var(--text-mute);
  max-width: 64ch;
}

.subgroup-foot {
  margin-top: 24px;
  font-size: 14px;
  color: var(--text-mute);
}

/* ===== Case ================================================ */

.case {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 48px;
  padding: 40px 0;
  border-top: 1px solid var(--line);
}
.case:first-of-type { border-top: none; padding-top: 0; }

.case-meta {
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: sticky;
  top: 84px;
  align-self: start;
}

.badge {
  display: inline-block;
  width: max-content;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text);
  background: var(--bg-elev);
  border: 1px solid var(--line-strong);
  padding: 4px 9px;
  border-radius: 999px;
}

.meta-list { margin: 0; padding: 0; display: grid; gap: 12px; }
.meta-list > div {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
  padding-top: 12px;
  border-top: 1px dashed var(--line-strong);
}
.meta-list > div:first-child { border-top: none; padding-top: 0; }
.meta-list dt {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.meta-list dd {
  margin: 0;
  font-size: 14px;
  color: var(--text);
}

.case-body { min-width: 0; }

.case-title {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(28px, 3.2vw, 38px);
  letter-spacing: -0.015em;
  line-height: 1.15;
  margin: 0 0 10px;
}

.case-lead {
  font-size: 18px;
  color: var(--text-mute);
  margin: 0 0 28px;
  max-width: 60ch;
}

.case-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px 40px;
  margin-bottom: 28px;
}
.case-grid p { margin: 0; color: var(--text); }

.case-h {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin: 0 0 6px;
}

.screenshot {
  display: grid;
  place-items: center;
  aspect-ratio: 16 / 9;
  width: 100%;
  background:
    radial-gradient(1200px 200px at 20% 0%, rgba(255,255,255,0.04), transparent 60%),
    var(--bg-elev);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-lg);
  color: var(--text-dim);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  margin: 8px 0 28px;
}

.steps {
  margin: 0 0 28px;
  padding-left: 20px;
  color: var(--text);
}
.steps li { margin-bottom: 4px; }
.steps li::marker { color: var(--text-dim); }

.chips {
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.chips li {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text);
  background: var(--bg-elev);
  border: 1px solid var(--line-strong);
  padding: 4px 10px;
  border-radius: 999px;
}

.cta-row { display: flex; flex-wrap: wrap; gap: 12px; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 500;
  padding: 10px 16px;
  border-radius: var(--r-md);
  border: 1px solid transparent;
  transition: background .15s ease, border-color .15s ease, color .15s ease, transform .05s ease;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn-primary:hover { text-decoration: none; background: #1d4ed8; border-color: #1d4ed8; }
.btn-primary:active { transform: translateY(1px); }

.btn-ghost {
  color: var(--text-dim);
  background: var(--bg-elev);
  border-color: var(--line-strong);
  cursor: not-allowed;
}

/* ===== Process ============================================= */

.process { padding-bottom: 16px; }

.process-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.process-item {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 48px;
  padding: 32px 0;
  border-top: 1px solid var(--line);
}
.process-item:first-child { border-top: none; padding-top: 0; }

.process-num {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  margin: 6px 0 0;
}

.process-body { min-width: 0; max-width: 64ch; }

.process-title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(22px, 2.4vw, 28px);
  letter-spacing: -0.015em;
  line-height: 1.2;
  margin: 0 0 12px;
}

.process-body p {
  margin: 0;
  color: var(--text);
  font-size: 17px;
  line-height: 1.65;
}

/* ===== Contact ============================================= */

.contact { padding-bottom: 64px; }

.contact-lead {
  font-family: var(--serif);
  font-size: clamp(20px, 2.2vw, 24px);
  font-weight: 400;
  color: var(--text);
  max-width: 48ch;
  margin: 0 0 40px;
  line-height: 1.4;
}

.contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  border-top: 1px solid var(--line);
}
.contact-list li {
  display: grid;
  grid-template-columns: 200px 1fr;
  align-items: center;
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}
.contact-label {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.contact-link {
  font-size: 18px;
  color: var(--text);
}
.contact-link:hover { color: var(--accent); text-decoration: none; }

/* ===== Footer ============================================== */

.site-footer {
  border-top: 1px solid var(--line);
  padding: 28px 0;
  margin-top: 24px;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px 24px;
  color: var(--text-mute);
  font-size: 14px;
}
.footer-inner p { margin: 0; }

.footer-social {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
}
.footer-social a {
  color: var(--text-mute);
  border-bottom: 1px solid transparent;
  padding-bottom: 1px;
  transition: color .15s ease, border-color .15s ease;
}
.footer-social a:hover {
  color: var(--text);
  border-bottom-color: var(--line-strong);
  text-decoration: none;
}
.footer-social span { color: var(--text-dim); }

@media (max-width: 540px) {
  .footer-inner { justify-content: flex-start; }
}

/* ===== Responsive ========================================== */

@media (max-width: 860px) {
  .process-item {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 24px 0;
  }
  .process-num { margin: 0; }

  .case {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 36px 0;
  }
  .case-meta {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 14px 20px;
    padding-bottom: 8px;
    border-bottom: 1px dashed var(--line-strong);
  }
  .meta-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px 20px;
    width: 100%;
  }
  .meta-list > div { border-top: none; padding-top: 0; }
  .case-grid { grid-template-columns: 1fr; gap: 20px; }

  .intro { padding: 56px 0 40px; }
  .section-head { padding: 48px 0 24px; margin-bottom: 32px; }
  .subgroup + .subgroup { margin-top: 40px; padding-top: 40px; }

  .contact-list li {
    grid-template-columns: 1fr;
    gap: 4px;
    padding: 16px 0;
  }
}

@media (max-width: 540px) {
  body { font-size: 15px; }
  .nav a { padding: 6px 10px; font-size: 13px; }
  .case-lead { font-size: 16px; }
  .contact-link { font-size: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}