/* =========================================
   BlueLogic Software — Main Stylesheet
   Dark/Light theme, blue accent
   ========================================= */

/* ---- Theme Variables ---- */
:root,
[data-theme="dark"] {
  --bg:        #0a0c10;
  --surface:   #12151c;
  --surface2:  #1a1f2b;
  --border:    #232b3a;
  --accent:    #3d7eff;
  --accent-h:  #5a91ff;
  --accent-glow: rgba(61,127,255,.25);
  --text:      #e2e8f0;
  --muted:     #8899b4;
  --danger:    #ff4d6d;
  --card-bg:   rgba(18,21,28,.65);
  --card-border: rgba(255,255,255,.06);
  --glass-blur: blur(20px);
  --hero-gradient: radial-gradient(ellipse 80% 60% at 50% -20%, rgba(61,127,255,.18) 0%, transparent 70%),
                   radial-gradient(ellipse 50% 40% at 80% 10%, rgba(99,102,241,.1) 0%, transparent 60%);
  --shadow-card: 0 4px 24px rgba(0,0,0,.3);
  --shadow-card-hover: 0 16px 56px rgba(61,127,255,.18);
  --navbar-bg: rgba(10,12,16,.85);
  --radius:    10px;
  --radius-lg: 16px;
  --font:      'Inter', system-ui, -apple-system, sans-serif;
  --mono:      'JetBrains Mono', 'Fira Code', monospace;
  --cta-gradient: linear-gradient(135deg, rgba(61,127,255,.12) 0%, rgba(99,102,241,.08) 50%, rgba(61,127,255,.12) 100%);
  color-scheme: dark;
}

[data-theme="light"] {
  --bg:        #f4f6fa;
  --surface:   #ffffff;
  --surface2:  #edf0f7;
  --border:    #d4d9e4;
  --accent:    #2563eb;
  --accent-h:  #1d4ed8;
  --accent-glow: rgba(37,99,235,.2);
  --text:      #1a1d26;
  --muted:     #5a6578;
  --danger:    #dc2626;
  --card-bg:   rgba(255,255,255,.7);
  --card-border: rgba(0,0,0,.06);
  --glass-blur: blur(20px);
  --hero-gradient: radial-gradient(ellipse 80% 60% at 50% -20%, rgba(37,99,235,.1) 0%, transparent 70%),
                   radial-gradient(ellipse 50% 40% at 80% 10%, rgba(99,102,241,.06) 0%, transparent 60%);
  --shadow-card: 0 2px 12px rgba(0,0,0,.06);
  --shadow-card-hover: 0 12px 40px rgba(37,99,235,.12);
  --navbar-bg: rgba(244,246,250,.88);
  --cta-gradient: linear-gradient(135deg, rgba(37,99,235,.06) 0%, rgba(99,102,241,.04) 50%, rgba(37,99,235,.06) 100%);
  color-scheme: light;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background .3s, color .3s;
}

a { color: var(--accent); text-decoration: none; transition: color .2s; }
a:hover { color: var(--accent-h); }

img { max-width: 100%; display: block; }

/* ---- Typography ---- */
h1, h2, h3, h4, h5 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.03em;
  color: var(--text);
}
h1 { font-size: clamp(2.4rem, 6vw, 3.8rem); font-weight: 800; }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.6rem); font-weight: 700; }
h3 { font-size: 1.3rem; }
h4 { font-size: 1.1rem; }
p  { color: var(--muted); }
p + p { margin-top: 1em; }

/* ---- Layout ---- */
.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

main { flex: 1; }

/* ---- Scroll-triggered fade-in ---- */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity .7s ease-out, transform .7s ease-out;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-d1 { transition-delay: .1s; }
.reveal-d2 { transition-delay: .2s; }
.reveal-d3 { transition-delay: .3s; }
.reveal-d4 { transition-delay: .4s; }

/* Page-load fade-in (hero only) */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

.fade-up { animation: fadeUp .6s ease-out both; }
.fade-up-d1 { animation-delay: .1s; }
.fade-up-d2 { animation-delay: .2s; }
.fade-up-d3 { animation-delay: .3s; }
.fade-up-d4 { animation-delay: .4s; }

/* =========================================
   NAVBAR
   ========================================= */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--navbar-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--card-border);
  transition: background .3s;
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
}

.nav-logo .logo-dot {
  width: 10px;
  height: 10px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
}

.nav-links a {
  color: var(--muted);
  font-size: .9rem;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 6px;
  transition: color .2s, background .2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
  background: var(--surface2);
}

.nav-cta {
  background: var(--accent) !important;
  color: #fff !important;
  font-weight: 600 !important;
}

.nav-cta:hover {
  background: var(--accent-h) !important;
  color: #fff !important;
  box-shadow: 0 4px 20px var(--accent-glow);
}

/* ---- Theme toggle ---- */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  font-size: 1rem;
  color: var(--muted);
  transition: all .2s;
  line-height: 1;
}

.theme-toggle:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--surface);
}

[data-theme="dark"] .theme-toggle-light { display: inline; }
[data-theme="dark"] .theme-toggle-dark  { display: none; }
[data-theme="light"] .theme-toggle-light { display: none; }
[data-theme="light"] .theme-toggle-dark  { display: inline; }

/* ---- Language switcher ---- */
.nav-lang-item { list-style: none; }

.lang-switcher {
  display: flex;
  align-items: center;
  gap: 2px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 3px;
}

.lang-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: .78rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 4px;
  color: var(--muted);
  text-decoration: none;
  transition: color .15s, background .15s;
  white-space: nowrap;
  letter-spacing: .02em;
}

.lang-btn:hover {
  color: var(--text);
  background: var(--border);
}

.lang-btn.lang-active {
  background: var(--accent);
  color: #fff;
  cursor: default;
}

/* =========================================
   HERO — animated gradient background
   ========================================= */
.hero {
  padding: 120px 0 90px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(61,127,255,.2) 0%, transparent 60%),
    radial-gradient(ellipse 40% 40% at 20% 20%, rgba(99,102,241,.1) 0%, transparent 50%),
    radial-gradient(ellipse 40% 40% at 80% 30%, rgba(59,130,246,.1) 0%, transparent 50%);
  pointer-events: none;
  animation: heroGradient 12s ease-in-out infinite alternate;
}

@keyframes heroGradient {
  0%   { opacity: .8; transform: scale(1) translateY(0); }
  50%  { opacity: 1;  transform: scale(1.05) translateY(-10px); }
  100% { opacity: .8; transform: scale(1) translateY(0); }
}

/* Floating orb left */
.hero::after {
  content: '';
  position: absolute;
  top: 40px;
  left: 5%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(61,127,255,.06) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  animation: floatLeft 10s ease-in-out infinite;
}

@keyframes floatLeft {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50%      { transform: translate(30px, -25px) scale(1.08); }
}

/* Extra orb via hero container pseudo isn't possible, use a child div instead in HTML */

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(61,127,255,.1);
  border: 1px solid rgba(61,127,255,.2);
  color: var(--accent);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 20px;
  margin-bottom: 28px;
  backdrop-filter: blur(8px);
}

.hero-title {
  max-width: 820px;
  margin: 0 auto 24px;
}

.hero-title .gradient-text {
  background: linear-gradient(135deg, #3d7eff 0%, #818cf8 40%, #6366f1 70%, #3d7eff 100%);
  background-size: 300% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: gradientShift 5s ease-in-out infinite;
}

@keyframes gradientShift {
  0%, 100% { background-position: 0% center; }
  50%      { background-position: 100% center; }
}

.hero-sub {
  max-width: 580px;
  margin: 0 auto 44px;
  font-size: 1.15rem;
  color: var(--muted);
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* =========================================
   BUTTONS
   ========================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: var(--radius);
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all .3s cubic-bezier(.4,0,.2,1);
  border: none;
  text-decoration: none;
  position: relative;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 2px 12px var(--accent-glow);
}
.btn-primary:hover {
  background: var(--accent-h);
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 10px 36px var(--accent-glow), 0 0 20px var(--accent-glow);
}

.btn-outline {
  background: var(--card-bg);
  color: var(--text);
  border: 1px solid var(--border);
  backdrop-filter: blur(8px);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-3px);
  box-shadow: 0 6px 20px var(--accent-glow);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.05rem;
  border-radius: 12px;
}

/* Glow button variant for CTA */
.btn-glow {
  padding: 18px 44px;
  font-size: 1.1rem;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent) 0%, #6366f1 100%);
  color: #fff;
  box-shadow: 0 4px 20px var(--accent-glow);
}
.btn-glow:hover {
  color: #fff;
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 12px 44px var(--accent-glow), 0 0 30px rgba(99,102,241,.2);
}

/* =========================================
   SECTION HEADERS
   ========================================= */
.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-header p {
  max-width: 520px;
  margin: 12px auto 0;
}
.section-label {
  display: inline-block;
  color: var(--accent);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

/* =========================================
   FEATURED PRODUCTS — larger icons
   ========================================= */
.section { padding: 100px 0; }
.section-alt {
  background: var(--surface);
  border-top: 1px solid var(--card-border);
  border-bottom: 1px solid var(--card-border);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 28px;
}

.product-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 36px;
  transition: all .35s cubic-bezier(.4,0,.2,1);
  display: flex;
  flex-direction: column;
  gap: 16px;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  box-shadow: var(--shadow-card);
}

.product-card:hover {
  border-color: rgba(61,127,255,.3);
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
}

.product-icon {
  width: 72px;
  height: 72px;
  background: rgba(61,127,255,.08);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  transition: transform .3s ease;
  align-self: center;
}

.product-card:hover .product-icon {
  transform: scale(1.05);
}

.product-card h3 { color: var(--text); text-align: center; }
.product-card p  { color: var(--muted); font-size: .93rem; }

.product-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 4px;
}

.tag {
  background: var(--surface2);
  color: var(--muted);
  font-size: .75rem;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: 20px;
  border: 1px solid var(--border);
}

.tag-accent {
  background: rgba(61,127,255,.1);
  color: var(--accent);
  border-color: rgba(61,127,255,.2);
}

.product-card-footer {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--card-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.product-downloads {
  display: flex;
  gap: 14px;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 4px;
}

.product-downloads--inactive {
  opacity: .55;
  pointer-events: none;
  filter: grayscale(15%);
}

.product-downloads .badge-apple {
  height: 40px;
  width: auto;
  display: block;
}

.product-downloads .badge-google {
  height: 54px;
  width: auto;
  display: block;
}

.product-download {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.product-download--inactive {
  opacity: .55;
  pointer-events: none;
  filter: grayscale(15%);
}

.product-download-status {
  font-size: .7rem;
  font-weight: 500;
  letter-spacing: .04em;
  color: var(--accent);
  text-transform: uppercase;
  line-height: 1;
}

.product-release-status {
  text-align: center;
  font-size: .78rem;
  font-weight: 500;
  letter-spacing: .04em;
  color: var(--accent);
  text-transform: uppercase;
  margin-top: 2px;
}

/* =========================================
   FEATURES / PHILOSOPHY — SVG icon style
   ========================================= */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

.feature-item {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all .35s cubic-bezier(.4,0,.2,1);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  box-shadow: var(--shadow-card);
}

.feature-item:hover {
  border-color: rgba(61,127,255,.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}

.feature-icon-wrap {
  width: 48px;
  height: 48px;
  background: rgba(61,127,255,.1);
  border: 1px solid rgba(61,127,255,.15);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  transition: all .3s ease;
}

.feature-item:hover .feature-icon-wrap {
  background: rgba(61,127,255,.15);
  transform: scale(1.05);
}

.feature-icon-wrap svg {
  width: 22px;
  height: 22px;
  stroke: var(--accent);
  stroke-width: 2;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* Legacy emoji icon fallback */
.feature-icon {
  font-size: 1.6rem;
  margin-bottom: 14px;
}

.feature-item h4 { color: var(--text); margin-bottom: 8px; }
.feature-item p  { font-size: .88rem; }

/* =========================================
   VALUES (About / Homepage)
   ========================================= */
.values-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.value-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  box-shadow: var(--shadow-card);
  transition: all .35s cubic-bezier(.4,0,.2,1);
}

.value-card:hover {
  border-color: rgba(61,127,255,.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}

.value-card h3 { margin-bottom: 10px; }

/* =========================================
   PRODUCT PAGE (SentinelBox)
   ========================================= */
.product-hero {
  padding: 80px 0 60px;
  border-bottom: 1px solid var(--card-border);
}

.product-hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.product-platform {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: .8rem;
  color: var(--muted);
  padding: 4px 12px;
  margin-bottom: 20px;
}

.product-hero h1 { margin-bottom: 16px; }
.product-hero p  { font-size: 1.05rem; margin-bottom: 28px; }

.product-actions { display: flex; gap: 12px; flex-wrap: wrap; }

.product-preview {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  font-family: var(--mono);
  font-size: .83rem;
  backdrop-filter: var(--glass-blur);
  box-shadow: var(--shadow-card);
}

.preview-bar {
  display: flex;
  gap: 6px;
  margin-bottom: 20px;
}
.preview-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border);
}
.preview-dot:first-child  { background: #ff5f57; }
.preview-dot:nth-child(2) { background: #ffbd2e; }
.preview-dot:last-child   { background: #28c840; }

.preview-line {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  border-bottom: 1px solid var(--card-border);
  color: var(--muted);
}

.preview-line:last-child { border-bottom: none; }

.preview-val { color: var(--accent); font-weight: 600; }
.preview-val.warn { color: #f59e0b; }
.preview-val.ok   { color: #22c55e; }

/* =========================================
   SPECS TABLE
   ========================================= */
.specs-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 24px;
}

.specs-table th,
.specs-table td {
  padding: 14px 18px;
  text-align: left;
  border-bottom: 1px solid var(--card-border);
  font-size: .92rem;
}

.specs-table th {
  color: var(--muted);
  font-weight: 600;
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  background: var(--surface2);
}

.specs-table td:first-child { color: var(--muted); }
.specs-table td:last-child  { color: var(--text); font-weight: 500; }

.check { color: #22c55e; }
.cross { color: var(--muted); }

/* =========================================
   STAT STRIP — counter animation support
   ========================================= */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--card-border);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-top: 64px;
  backdrop-filter: var(--glass-blur);
}

.stat-item {
  background: var(--card-bg);
  padding: 32px 24px;
  text-align: center;
  transition: background .3s;
}

.stat-item:hover {
  background: var(--surface);
}

.stat-item .stat-number {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.03em;
  display: block;
  font-variant-numeric: tabular-nums;
}

.stat-item .stat-label {
  font-size: .82rem;
  color: var(--muted);
  margin-top: 6px;
}

/* =========================================
   DOCS
   ========================================= */
.docs-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 48px;
  padding: 60px 0;
  align-items: start;
}

.docs-sidebar {
  position: sticky;
  top: 80px;
}

.docs-sidebar-title {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
  margin-top: 20px;
}

.docs-sidebar-title:first-child { margin-top: 0; }

.docs-sidebar nav ul {
  list-style: none;
}

.docs-sidebar nav ul li a {
  display: block;
  color: var(--muted);
  font-size: .88rem;
  padding: 6px 12px;
  border-radius: 6px;
  transition: color .2s, background .2s;
}

.docs-sidebar nav ul li a:hover,
.docs-sidebar nav ul li a.active {
  color: var(--text);
  background: var(--surface2);
}

.docs-content h1 { margin-bottom: 8px; }
.docs-content .doc-meta { color: var(--muted); font-size: .85rem; margin-bottom: 40px; }

.docs-content h2 {
  font-size: 1.4rem;
  margin: 40px 0 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--card-border);
}

.docs-content h3 {
  font-size: 1.1rem;
  margin: 28px 0 10px;
  color: var(--text);
}

.docs-content p { color: var(--muted); margin-bottom: 14px; }

.docs-content ul,
.docs-content ol {
  padding-left: 24px;
  color: var(--muted);
  margin-bottom: 14px;
}

.docs-content li { margin-bottom: 4px; }

.docs-content code {
  font-family: var(--mono);
  font-size: .85em;
  background: var(--surface2);
  border: 1px solid var(--border);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--accent);
}

.docs-content pre {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  overflow-x: auto;
  margin: 20px 0;
}

.docs-content pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: .85rem;
  color: var(--text);
}

.docs-content blockquote {
  border-left: 3px solid var(--accent);
  padding-left: 20px;
  margin: 20px 0;
  color: var(--muted);
}

.docs-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
  margin-top: 32px;
}

.docs-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 24px;
  transition: all .3s ease;
  backdrop-filter: var(--glass-blur);
  box-shadow: var(--shadow-card);
}

.docs-card:hover {
  border-color: rgba(61,127,255,.3);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card-hover);
}
.docs-card h3 { font-size: 1rem; margin-bottom: 6px; }
.docs-card p  { font-size: .85rem; }

/* =========================================
   CALLOUT / NOTE BOXES
   ========================================= */
.callout {
  border-radius: var(--radius);
  padding: 16px 20px;
  margin: 20px 0;
  border-left: 3px solid;
}

.callout-info {
  background: rgba(61,127,255,.06);
  border-color: var(--accent);
}

.callout-warn {
  background: rgba(245,158,11,.06);
  border-color: #f59e0b;
}

.callout p { margin: 0; }

/* =========================================
   CTA SECTION — gradient + glow
   ========================================= */
.section-cta {
  position: relative;
  overflow: hidden;
  padding: 120px 0;
}

.section-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 70% at 50% 50%, rgba(61,127,255,.12) 0%, transparent 70%),
    radial-gradient(ellipse 40% 50% at 30% 70%, rgba(99,102,241,.08) 0%, transparent 60%);
  pointer-events: none;
  animation: ctaPulse 6s ease-in-out infinite alternate;
}

@keyframes ctaPulse {
  0%   { opacity: .6; }
  100% { opacity: 1; }
}

.cta-card {
  background: var(--cta-gradient);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 72px 48px;
  text-align: center;
  backdrop-filter: var(--glass-blur);
  box-shadow: var(--shadow-card);
  position: relative;
}

.cta-card h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
}

/* =========================================
   ABOUT PAGE
   ========================================= */
.about-hero {
  padding: 80px 0 60px;
  text-align: center;
  border-bottom: 1px solid var(--card-border);
}

.about-hero p {
  max-width: 580px;
  margin: 16px auto 0;
  font-size: 1.05rem;
}

/* =========================================
   CONTACT PAGE
   ========================================= */
.contact-wrap {
  padding: 80px 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.contact-info h2 { margin-bottom: 12px; }
.contact-info p  { margin-bottom: 24px; }

.contact-method {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  color: var(--text);
  transition: all .3s ease;
  backdrop-filter: var(--glass-blur);
  box-shadow: var(--shadow-card);
}

.contact-method:hover {
  border-color: rgba(61,127,255,.3);
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
}

.contact-method-icon {
  font-size: 1.4rem;
  width: 44px;
  height: 44px;
  background: rgba(61,127,255,.1);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-method-text strong { display: block; color: var(--text); }
.contact-method-text span   { font-size: .85rem; color: var(--muted); }

/* =========================================
   FOOTER
   ========================================= */
.footer {
  background: var(--surface);
  border-top: 1px solid var(--card-border);
  padding: 48px 0 28px;
  margin-top: auto;
  transition: background .3s;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand .nav-logo { margin-bottom: 12px; }
.footer-brand p { font-size: .85rem; max-width: 200px; }

.footer-col h5 {
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 14px;
}

.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { color: var(--muted); font-size: .88rem; transition: color .2s; }
.footer-col ul li a:hover { color: var(--text); }

.footer-bottom {
  border-top: 1px solid var(--card-border);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--muted);
  font-size: .82rem;
}

/* =========================================
   PAGE HEADER (generic inner pages)
   ========================================= */
.page-header {
  padding: 64px 0 48px;
  border-bottom: 1px solid var(--card-border);
  margin-bottom: 60px;
}

.page-header h1 { margin-bottom: 8px; }
.page-header p  { font-size: 1.05rem; }

/* =========================================
   DOWNLOAD BOX
   ========================================= */
.download-box {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 40px;
  text-align: center;
  margin: 48px 0;
  backdrop-filter: var(--glass-blur);
  box-shadow: var(--shadow-card);
}

.download-box h3 { margin-bottom: 8px; }
.download-box p  { margin-bottom: 24px; }

.download-version {
  font-size: .8rem;
  color: var(--muted);
  margin-top: 12px;
}

/* =========================================
   RESPONSIVE
   ========================================= */
@media (max-width: 900px) {
  .product-hero-inner { grid-template-columns: 1fr; }
  .docs-layout         { grid-template-columns: 1fr; }
  .docs-sidebar        { position: static; }
  .contact-wrap        { grid-template-columns: 1fr; gap: 40px; }
  .footer-inner        { grid-template-columns: 1fr 1fr; }
  .values-row          { grid-template-columns: 1fr; }
  .stat-strip          { grid-template-columns: repeat(2, 1fr); }
  .cta-card            { padding: 48px 28px; }
}

@media (max-width: 640px) {
  .nav-links { display: none; }
  .hero { padding: 72px 0 56px; }
  .section { padding: 64px 0; }
  .section-cta { padding: 64px 0; }
  .footer-inner { grid-template-columns: 1fr; }
  .stat-strip { grid-template-columns: 1fr; }
  .product-icon { width: 56px; height: 56px; }
}