/* =========================================================
   IMscout — Brand Guidelines Pages (shared)
   ========================================================= */

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

:root {
  --bg:            #0A0A0A;
  --bg-card:       #111111;
  --border:        #1F1F1F;
  --border-strong: #272727;
  --text:          #F2F2F2;
  --text-muted:    #8A8A8A;
  --text-dim:      #5A5A5A;
  --accent:        #E50026;
  --f-display:     'Poppins', sans-serif;
  --f-body:        'Inter', sans-serif;
  --f-mono:        'JetBrains Mono', monospace;
  --ease:          cubic-bezier(.22, .61, .36, 1);
  --max:           1160px;
  --pad:           clamp(1.5rem, 5vw, 4rem);
}

html, body {
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--f-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { display: block; max-width: 100%; }
a   { color: inherit; text-decoration: none; }

/* ── Topbar ── */
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px var(--pad);
  background: rgba(10,10,10,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.brand-logo-link {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--f-display);
  font-size: 15px;
  font-weight: 600;
}
.brand-logo-link img { height: 24px; width: auto; }
.brand-logo-link b { color: var(--accent); }
.back-link {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
  transition: color 0.2s var(--ease);
}
.back-link:hover { color: var(--text); }
.back-link::before { content: "←"; font-family: var(--f-body); font-size: 13px; }

/* ── Page header ── */
.page-header {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(3rem, 8vh, 6rem) var(--pad) clamp(2.5rem, 5vh, 4rem);
  border-bottom: 1px solid var(--border);
}
.eyebrow {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}
.eyebrow::before {
  content: '';
  width: 32px; height: 1px;
  background: var(--accent);
  flex-shrink: 0;
}
.page-title {
  font-family: var(--f-display);
  font-size: clamp(2.25rem, 5.5vw, 4.5rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.0;
  margin-bottom: 18px;
}
.page-title .accent { color: var(--accent); }
.page-desc {
  font-size: 0.9375rem;
  color: var(--text-muted);
  max-width: 60ch;
  line-height: 1.65;
}

/* ── Main wrapper ── */
.main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad) clamp(4rem, 10vh, 8rem);
}

/* ── Logo section ── */
.logo-section {
  padding-top: clamp(3rem, 6vh, 5rem);
}
.section-head {
  margin-bottom: clamp(1.5rem, 3vh, 2.5rem);
}
.section-label {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 10px;
}
.section-label .bar {
  width: 36px; height: 1px;
  background: var(--accent);
  flex-shrink: 0;
}
.section-name {
  font-family: var(--f-display);
  font-weight: 500;
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}
.section-hint {
  font-size: 0.8125rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}
.bg-swatch {
  display: inline-block;
  width: 14px; height: 14px;
  border-radius: 3px;
  border: 1px solid var(--border-strong);
  flex-shrink: 0;
}

/* ── Logo grid ── */
.logo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border-strong);
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  overflow: hidden;
}
.logo-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }

/* ── Logo card ── */
.logo-card {
  background: var(--bg-card);
  display: flex;
  flex-direction: column;
}

.card-preview {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: clamp(180px, 22vh, 260px);
  padding: clamp(2rem, 4vw, 3.5rem);
  overflow: hidden;
}
.card-preview.bg-dark  { background: #0E0E0E; }
.card-preview.bg-light { background: #F8F8F8; }

.card-preview::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.card-preview.bg-dark::before {
  background-image:
    linear-gradient(rgba(255,255,255,0.024) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.024) 1px, transparent 1px);
  background-size: 28px 28px;
}
.card-preview.bg-light::before {
  background-image:
    linear-gradient(rgba(0,0,0,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,0,0,0.05) 1px, transparent 1px);
  background-size: 28px 28px;
}

.card-logo {
  position: relative;
  z-index: 1;
  max-height: 120px;
  max-width: 70%;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
  transition: transform 0.5s var(--ease);
  user-select: none;
  -webkit-user-drag: none;
}
.card-logo.is-mark   { max-height: 100px; max-width: 44%; }
.card-logo.is-wide   { max-height: 70px;  max-width: 82%; }
.card-logo.is-square { max-height: 130px; max-width: 55%; }

.logo-card:hover .card-logo {
  transform: scale(1.06);
}

.card-body {
  padding: 18px 20px 22px;
  border-top: 1px solid var(--border-strong);
  display: flex;
  flex-direction: column;
  flex: 1;
}
.card-variant {
  font-family: var(--f-mono);
  font-size: 9.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 7px;
}
.card-name {
  font-family: var(--f-display);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: -0.015em;
  margin-bottom: 6px;
}
.card-desc {
  font-size: 0.8125rem;
  color: var(--text-muted);
  line-height: 1.58;
  flex: 1;
  margin-bottom: 16px;
}
.card-meta {
  font-family: var(--f-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  color: var(--text-dim);
  margin-bottom: 14px;
}

/* ── Download buttons ── */
.card-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.btn-dl {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--f-mono);
  font-size: 9.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 8px 14px;
  border-radius: 100px;
  transition: all 0.2s var(--ease);
  white-space: nowrap;
  cursor: pointer;
}
.btn-dl svg { flex-shrink: 0; }
.btn-svg {
  background: var(--accent);
  color: #fff;
  border: 1px solid var(--accent);
}
.btn-svg:hover { opacity: 0.85; transform: translateY(-1px); }
.btn-png {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border-strong);
}
.btn-png:hover { color: var(--text); border-color: #4a4a4a; transform: translateY(-1px); }

/* ── Hub brand cards (brand.html only) ── */
.hub-intro {
  padding-top: clamp(2.5rem, 5vh, 4rem);
  padding-bottom: clamp(1.5rem, 3vh, 2.5rem);
}
.hub-intro-label {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}
.hub-intro-label::before {
  content: '';
  width: 36px; height: 1px;
  background: var(--border-strong);
  flex-shrink: 0;
}

.brand-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border-strong);
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  overflow: hidden;
}

.brand-card {
  background: var(--bg-card);
  display: flex;
  flex-direction: column;
  cursor: pointer;
  transition: background 0.25s var(--ease);
  text-decoration: none;
}
.brand-card:hover { background: #161616; }

.brand-preview {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 180px;
  overflow: hidden;
  padding: 2rem;
}
.brand-preview::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
}
.brand-preview-img {
  position: relative;
  z-index: 1;
  max-height: 80px;
  max-width: 76%;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
  transition: transform 0.5s var(--ease);
  user-select: none;
  -webkit-user-drag: none;
}
.brand-card:hover .brand-preview-img { transform: scale(1.05); }

.brand-info {
  padding: 18px 20px 20px;
  border-top: 1px solid var(--border-strong);
  display: flex;
  flex-direction: column;
  flex: 1;
}
.brand-tag {
  font-family: var(--f-mono);
  font-size: 9.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 7px;
}
.brand-name {
  font-family: var(--f-display);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 5px;
}
.brand-desc {
  font-size: 0.8125rem;
  color: var(--text-muted);
  line-height: 1.5;
  flex: 1;
  margin-bottom: 14px;
}
.brand-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--f-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.brand-arrow {
  font-family: var(--f-body);
  font-size: 14px;
  color: var(--text-muted);
  transition: transform 0.25s var(--ease), color 0.25s var(--ease);
}
.brand-card:hover .brand-arrow {
  transform: translateX(4px);
  color: var(--text);
}

/* ── Placeholder brand card ── */
.brand-placeholder {
  pointer-events: none;
  opacity: 0.3;
}
.brand-placeholder .brand-preview {
  position: relative;
}
.brand-placeholder .brand-preview::after {
  content: '+';
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--f-display);
  font-size: 2rem;
  font-weight: 300;
  color: var(--text-dim);
}
.brand-tag--dim  { color: var(--text-dim); }
.brand-name--dim { color: var(--text-dim); }

/* ── Corporate Identity ── */
.ci-section {
  padding-top: clamp(3rem, 6vh, 5rem);
}

.color-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border-strong);
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  overflow: hidden;
}
.color-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.color-grid.cols-5 { grid-template-columns: repeat(5, 1fr); }
.color-card {
  background: var(--bg-card);
  display: flex;
  flex-direction: column;
}
.color-swatch {
  height: clamp(100px, 16vh, 180px);
  transition: filter 0.4s var(--ease);
}
.color-card:hover .color-swatch { filter: brightness(1.1); }
.color-info {
  padding: 20px 22px 26px;
  border-top: 1px solid var(--border-strong);
}
.color-name {
  font-family: var(--f-display);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}
.color-role {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.color-values { display: flex; flex-direction: column; gap: 6px; }
.color-value {
  display: flex;
  gap: 10px;
  font-family: var(--f-mono);
  font-size: 10.5px;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}
.color-value span {
  color: var(--text-dim);
  width: 42px;
  flex-shrink: 0;
}

.font-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border-strong);
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  overflow: hidden;
}
.font-card + .font-card {
  margin-top: clamp(1rem, 2vh, 1.5rem);
}
.font-preview {
  background: var(--bg-card);
  padding: clamp(2rem, 5vw, 3.5rem);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 28px;
}
.font-specimen {
  font-family: var(--f-display);
  font-size: clamp(5rem, 9vw, 8.5rem);
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 0.88;
  color: var(--text);
}
.font-alphabet {
  font-family: var(--f-display);
  font-size: 0.8125rem;
  line-height: 2;
  color: var(--text-dim);
  letter-spacing: 0.06em;
}
.font-info {
  background: var(--bg-card);
  padding: clamp(2rem, 4vw, 3.5rem);
  display: flex;
  flex-direction: column;
}
.font-name {
  font-family: var(--f-display);
  font-size: clamp(1.6rem, 3vw, 2.5rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  margin-bottom: 6px;
}
.font-foundry {
  font-family: var(--f-mono);
  font-size: 9.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 20px;
}
.font-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.68;
  max-width: 44ch;
  margin-bottom: 28px;
}
.font-weights {
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  overflow: hidden;
  margin-bottom: 24px;
}
.font-weight-row {
  font-family: var(--f-display);
  font-size: 0.9375rem;
  color: var(--text);
  padding: 13px 18px;
  border-bottom: 1px solid var(--border-strong);
  display: flex;
  align-items: center;
  gap: 16px;
}
.font-weight-row:last-child { border-bottom: none; }
.font-weight-label {
  font-family: var(--f-mono);
  font-size: 9px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-dim);
  flex-shrink: 0;
  width: 88px;
}
.btn-font {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--f-mono);
  font-size: 9.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  border: 1px solid var(--border-strong);
  padding: 10px 18px;
  border-radius: 100px;
  transition: all 0.2s var(--ease);
  align-self: flex-start;
  margin-top: auto;
}
.btn-font:hover {
  color: var(--text);
  border-color: #4a4a4a;
  transform: translateY(-1px);
}
.btn-font svg { flex-shrink: 0; }

/* ── Divider ── */
.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: clamp(2.5rem, 6vh, 4.5rem) 0 0;
}

/* ── Footer ── */
.footer {
  border-top: 1px solid var(--border);
  padding: 22px var(--pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.footer a { color: var(--text-muted); transition: color 0.2s var(--ease); }
.footer a:hover { color: var(--text); }

/* ── Responsive ── */
@media (max-width: 800px) {
  .logo-grid,
  .logo-grid.cols-2,
  .brand-grid,
  .color-grid,
  .color-grid.cols-2,
  .font-card {
    grid-template-columns: 1fr;
  }
}
@media (min-width: 480px) and (max-width: 800px) {
  .logo-grid,
  .logo-grid.cols-2,
  .brand-grid,
  .color-grid,
  .color-grid.cols-2 {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 480px) {
  .footer { flex-direction: column; align-items: flex-start; gap: 8px; }
}

/* cols-5 zůstane vždy v jednom řádku, na mobilu s horizontálním scrollem */
@media (max-width: 800px) {
  .color-grid.cols-5 {
    grid-template-columns: repeat(5, minmax(120px, 1fr));
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .color-grid.cols-5 .color-info {
    padding: 12px 10px 16px;
  }
  .color-grid.cols-5 .color-name {
    font-size: 0.8rem;
  }
  .color-grid.cols-5 .color-role {
    font-size: 0.7rem;
    margin-bottom: 10px;
  }
  .color-grid.cols-5 .color-value {
    font-size: 8.5px;
    flex-direction: column;
    gap: 1px;
  }
  .color-grid.cols-5 .color-value span {
    width: auto;
  }
}