/* hex-rgb.ru — Color Converter */
:root {
  --bg:        #0d1117;
  --bg-soft:   #111827;
  --card:      #1a2235;
  --card-b:    #243047;
  --text:      #e2e8f0;
  --text-muted:#7a8ba8;
  --accent:    #818cf8;
  --accent2:   #a78bfa;
  --line:      rgba(255,255,255,.08);
  --radius:    14px;
  --shadow:    0 8px 32px rgba(0,0,0,.4);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  min-height: 100vh;
  line-height: 1.5;
}

/* ── HEADER ── */
.site-header {
  border-bottom: 1px solid var(--line);
  padding: 0 24px;
}
.site-header .inner {
  max-width: 1140px;
  margin: 0 auto;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
  font-weight: 700;
  font-size: 1.05rem;
}
.brand img { width: 30px; height: 30px; }
.site-nav { display: flex; gap: 4px; }
.site-nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: .88rem;
  padding: 6px 12px;
  border-radius: 8px;
  transition: color .2s, background .2s;
}
.site-nav a:hover { color: var(--text); background: var(--line); }
.site-nav a.active { color: var(--accent); }

/* ── HERO ── */
.hero {
  text-align: center;
  padding: 48px 24px 32px;
  max-width: 680px;
  margin: 0 auto;
}
.hero h1 {
  font-family: 'Manrope', sans-serif;
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  font-weight: 800;
  margin-bottom: 12px;
  background: linear-gradient(135deg, var(--text) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero p {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.65;
}

/* ── MAIN LAYOUT ── */
.tool-wrap {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px 64px;
  display: grid;
  grid-template-columns: 400px 1fr;
  gap: 24px;
  align-items: start;
}

/* ── CONVERTER PANEL ── */
.converter {
  background: var(--card);
  border: 1px solid var(--card-b);
  border-radius: var(--radius);
  padding: 24px;
  position: sticky;
  top: 24px;
}

/* roles */
.roles {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 20px;
}
.role-btn {
  background: var(--bg-soft);
  border: 2px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: border-color .2s, background .2s;
  color: var(--text-muted);
  font-size: .85rem;
  font-family: 'Inter', sans-serif;
}
.role-btn.active {
  border-color: var(--accent);
  background: rgba(129,140,248,.08);
  color: var(--text);
}
.role-dot {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,.15);
  flex-shrink: 0;
  transition: background .3s;
}

/* preview swatch */
.swatch-wrap { margin-bottom: 20px; }
.swatch {
  width: 100%;
  height: 80px;
  border-radius: 10px;
  border: 1px solid var(--line);
  transition: background .2s;
  position: relative;
  overflow: hidden;
}
.swatch-checkers {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(45deg, #333 25%, transparent 25%),
    linear-gradient(-45deg, #333 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #333 75%),
    linear-gradient(-45deg, transparent 75%, #333 75%);
  background-size: 12px 12px;
  background-position: 0 0, 0 6px, 6px -6px, -6px 0;
  z-index: 0;
}
.swatch-color {
  position: absolute; inset: 0;
  transition: background .15s;
  z-index: 1;
}

/* format inputs */
.formats { display: flex; flex-direction: column; gap: 12px; }

.fmt-row {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 14px;
  transition: border-color .2s;
}
.fmt-row:focus-within { border-color: var(--accent); }

.fmt-label {
  font-size: .75rem;
  font-weight: 600;
  color: var(--text-muted);
  width: 40px;
  flex-shrink: 0;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.fmt-inputs { display: flex; gap: 6px; flex: 1; }

.fmt-inputs input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
  font-family: 'JetBrains Mono', monospace;
  font-size: .9rem;
  width: 0;
  flex: 1;
  min-width: 0;
}
.fmt-inputs input::placeholder { color: var(--text-muted); }

.copy-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  font-size: .78rem;
  padding: 4px 8px;
  border-radius: 6px;
  transition: color .2s, background .2s;
  white-space: nowrap;
  font-family: 'Inter', sans-serif;
}
.copy-btn:hover { color: var(--accent); background: rgba(129,140,248,.1); }
.copy-btn.copied { color: #4ade80; }

.privacy {
  margin-top: 16px;
  font-size: .78rem;
  color: var(--text-muted);
  text-align: center;
}

/* ── MOCKUP PANEL ── */
.mockup-panel {
  background: var(--card);
  border: 1px solid var(--card-b);
  border-radius: var(--radius);
  overflow: hidden;
}

.mockup-header {
  padding: 14px 20px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.mockup-title {
  font-size: .88rem;
  font-weight: 600;
  color: var(--text-muted);
}
.mockup-tabs {
  display: flex;
  gap: 4px;
  background: var(--bg);
  border-radius: 8px;
  padding: 3px;
}
.mock-tab {
  font-size: .78rem;
  padding: 4px 10px;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  background: transparent;
  color: var(--text-muted);
  font-family: 'Inter', sans-serif;
  transition: background .2s, color .2s;
}
.mock-tab.active {
  background: var(--card);
  color: var(--text);
}

.mockup-body { padding: 20px; }

/* ── THE MOCKUP ITSELF ── */
.mockup {
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.1);
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  /* color roles controlled by JS */
  --m-accent:  #6366f1;
  --m-bg:      #ffffff;
  --m-surface: #f1f5f9;
  --m-text:    #1e293b;
}

/* SHOP mockup */
.mock-shop-header {
  background: var(--m-accent);
  color: #fff;
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.mock-logo { font-weight: 700; font-size: 13px; display: flex; align-items: center; gap: 6px; }
.mock-logo-dot { width: 20px; height: 20px; border-radius: 50%; background: rgba(255,255,255,.3); }
.mock-nav-items { display: flex; gap: 12px; font-size: 11px; opacity: .85; }
.mock-cart { font-size: 16px; }

.mock-hero {
  background: var(--m-surface);
  padding: 20px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.mock-hero-text h2 {
  color: var(--m-text);
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 4px;
}
.mock-hero-text p { color: var(--m-text); opacity: .6; font-size: 11px; }
.mock-btn {
  background: var(--m-accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 7px 14px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  font-family: inherit;
}

.mock-products {
  background: var(--m-bg);
  padding: 16px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.mock-card {
  background: var(--m-surface);
  border-radius: 8px;
  overflow: hidden;
}
.mock-card-img {
  height: 60px;
  background: var(--m-accent);
  opacity: .18;
}
.mock-card-body { padding: 8px; }
.mock-card-name { font-size: 10px; font-weight: 600; color: var(--m-text); margin-bottom: 2px; }
.mock-card-price { font-size: 11px; font-weight: 700; color: var(--m-accent); margin-bottom: 6px; }
.mock-card-btn {
  width: 100%;
  background: var(--m-accent);
  color: #fff;
  border: none;
  border-radius: 4px;
  padding: 5px;
  font-size: 9px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
}

.mock-footer {
  background: var(--m-text);
  color: rgba(255,255,255,.6);
  padding: 10px 16px;
  font-size: 10px;
  text-align: center;
}

/* BLOG mockup */
.mock-blog-header {
  background: var(--m-accent);
  color: #fff;
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.mock-featured {
  background: var(--m-surface);
  padding: 16px;
}
.mock-featured-img {
  height: 80px;
  background: var(--m-accent);
  opacity: .2;
  border-radius: 6px;
  margin-bottom: 10px;
}
.mock-featured h2 { color: var(--m-text); font-size: 13px; font-weight: 700; margin-bottom: 4px; }
.mock-featured p { color: var(--m-text); opacity: .6; font-size: 10px; line-height: 1.4; }
.mock-tag {
  display: inline-block;
  background: var(--m-accent);
  color: #fff;
  border-radius: 4px;
  padding: 2px 7px;
  font-size: 9px;
  font-weight: 600;
  margin-bottom: 6px;
}
.mock-articles {
  background: var(--m-bg);
  padding: 12px 16px;
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 8px;
}
.mock-article-card {
  background: var(--m-surface);
  border-radius: 7px;
  overflow: hidden;
}
.mock-article-img { height: 36px; background: var(--m-accent); opacity: .15; }
.mock-article-body { padding: 6px; }
.mock-article-title { font-size: 9px; font-weight: 600; color: var(--m-text); margin-bottom: 3px; }
.mock-article-date { font-size: 8px; color: var(--m-text); opacity: .5; }

/* LANDING mockup */
.mock-land-header {
  background: var(--m-bg);
  border-bottom: 1px solid rgba(0,0,0,.08);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.mock-land-header .mock-logo { color: var(--m-accent); }
.mock-hero-land {
  background: var(--m-accent);
  padding: 28px 16px;
  text-align: center;
  color: #fff;
}
.mock-hero-land h2 { font-size: 16px; font-weight: 800; margin-bottom: 6px; }
.mock-hero-land p { font-size: 10px; opacity: .8; margin-bottom: 14px; }
.mock-btn-land {
  background: #fff;
  color: var(--m-accent);
  border: none;
  border-radius: 6px;
  padding: 8px 18px;
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
  font-family: inherit;
}
.mock-features {
  background: var(--m-bg);
  padding: 16px;
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 10px;
}
.mock-feature {
  background: var(--m-surface);
  border-radius: 8px;
  padding: 10px;
  text-align: center;
}
.mock-feature-icon {
  width: 28px; height: 28px;
  background: var(--m-accent);
  border-radius: 8px;
  margin: 0 auto 6px;
  opacity: .8;
}
.mock-feature-title { font-size: 9px; font-weight: 700; color: var(--m-text); margin-bottom: 3px; }
.mock-feature-desc { font-size: 8px; color: var(--m-text); opacity: .55; line-height: 1.3; }
.mock-cta {
  background: var(--m-surface);
  padding: 20px 16px;
  text-align: center;
}
.mock-cta h3 { color: var(--m-text); font-size: 13px; font-weight: 700; margin-bottom: 10px; }

/* DASHBOARD mockup */
.mock-dash {
  display: grid;
  grid-template-columns: 80px 1fr;
  background: var(--m-bg);
  min-height: 260px;
}
.mock-sidebar {
  background: var(--m-accent);
  padding: 12px 8px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.mock-sidebar-logo {
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255,255,255,.2);
}
.mock-nav-item {
  color: rgba(255,255,255,.7);
  font-size: 9px;
  padding: 6px 8px;
  border-radius: 5px;
  display: flex;
  align-items: center;
  gap: 5px;
}
.mock-nav-item.active { background: rgba(255,255,255,.2); color: #fff; }
.mock-nav-dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.mock-dash-main { padding: 12px; }
.mock-dash-title { font-size: 11px; font-weight: 700; color: var(--m-text); margin-bottom: 10px; }
.mock-stats { display: grid; grid-template-columns: repeat(3,1fr); gap: 6px; margin-bottom: 10px; }
.mock-stat {
  background: var(--m-surface);
  border-radius: 6px;
  padding: 8px;
}
.mock-stat-val { font-size: 13px; font-weight: 700; color: var(--m-accent); }
.mock-stat-label { font-size: 8px; color: var(--m-text); opacity: .55; }
.mock-chart-area {
  background: var(--m-surface);
  border-radius: 6px;
  padding: 8px;
  height: 60px;
  display: flex;
  align-items: flex-end;
  gap: 4px;
}
.mock-bar {
  flex: 1;
  background: var(--m-accent);
  border-radius: 3px 3px 0 0;
  opacity: .7;
}

/* ── ARTICLE SECTION ── */
.article-wrap {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px 64px;
}
.article-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.article-card {
  background: var(--card);
  border: 1px solid var(--card-b);
  border-radius: var(--radius);
  padding: 24px;
}
.article-card h2 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--accent);
}
.article-card p {
  font-size: .9rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 10px;
}
.article-card p:last-child { margin-bottom: 0; }

/* ── FAQ ── */
.faq-wrap {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px 64px;
}
.faq-wrap h2 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 16px;
}
.faq-item { margin-bottom: 16px; }
.faq-item h3 {
  font-size: .95rem;
  font-weight: 600;
  margin-bottom: 5px;
}
.faq-item p {
  font-size: .88rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ── RELATED ── */
.related-wrap {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px 64px;
  border-top: 1px solid var(--line);
  padding-top: 32px;
}
.related-wrap h2 { font-size: 1rem; font-weight: 600; margin-bottom: 12px; color: var(--text-muted); }
.related-links { display: flex; flex-wrap: wrap; gap: 8px; }
.related-links a {
  color: var(--accent);
  text-decoration: none;
  font-size: .88rem;
  padding: 6px 14px;
  border: 1px solid var(--card-b);
  border-radius: 8px;
  transition: background .2s, border-color .2s;
}
.related-links a:hover { background: var(--card); border-color: var(--accent); }

/* ── FOOTER ── */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 20px 24px;
  text-align: center;
  font-size: .82rem;
  color: var(--text-muted);
}

/* ── RESPONSIVE ── */
@media (max-width: 860px) {
  .tool-wrap {
    grid-template-columns: 1fr;
  }
  .converter { position: static; }
  .article-grid { grid-template-columns: 1fr; }
  .mock-products,
  .mock-articles,
  .mock-features,
  .mock-stats { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 560px) {
  .site-nav { display: none; }
  .hero { padding: 32px 16px 20px; }
  .tool-wrap { padding: 0 16px 48px; }
}