/* ==========================================================================
   CTRL by Kontroler — Design System
   Hibrid: svetla tema sa industrijskim detaljima
   Akcent: Tamna teal/cyan (#0891B2)
   ========================================================================== */

:root {
  /* Brand */
  --teal-50: #ecfeff;
  --teal-100: #cffafe;
  --teal-200: #a5f3fc;
  --teal-300: #67e8f9;
  --teal-400: #22d3ee;
  --teal-500: #06b6d4;
  --teal-600: #0891b2;  /* Primary */
  --teal-700: #0e7490;
  --teal-800: #155e75;
  --teal-900: #164e63;

  /* Neutral */
  --slate-50:  #f8fafc;
  --slate-100: #f1f5f9;
  --slate-200: #e2e8f0;
  --slate-300: #cbd5e1;
  --slate-400: #94a3b8;
  --slate-500: #64748b;
  --slate-600: #475569;
  --slate-700: #334155;
  --slate-800: #1e293b;
  --slate-900: #0f172a;
  --slate-950: #020617;

  /* Semantic */
  --bg:           #ffffff;
  --bg-soft:      var(--slate-50);
  --bg-grid:      #f1f5f9;
  --surface:      #ffffff;
  --surface-2:    var(--slate-50);
  --border:       var(--slate-200);
  --border-strong: var(--slate-300);
  --text:         var(--slate-900);
  --text-muted:   var(--slate-600);
  --text-subtle:  var(--slate-500);
  --accent:       var(--teal-600);
  --accent-hover: var(--teal-700);
  --accent-soft:  var(--teal-50);

  /* Terminal (hero code block) */
  --term-bg:      #0b1220;
  --term-border:  #1e293b;
  --term-text:    #e2e8f0;
  --term-muted:   #94a3b8;
  --term-accent:  var(--teal-400);
  --term-green:   #4ade80;
  --term-amber:   #fbbf24;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Monaco, 'Cascadia Code', monospace;

  /* Scale */
  --step--1: clamp(0.875rem, 0.83rem + 0.22vw, 1rem);
  --step-0:  clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --step-1:  clamp(1.125rem, 1.05rem + 0.4vw, 1.375rem);
  --step-2:  clamp(1.375rem, 1.2rem + 0.9vw, 1.875rem);
  --step-3:  clamp(1.75rem, 1.4rem + 1.7vw, 2.75rem);
  --step-4:  clamp(2.25rem, 1.6rem + 3.2vw, 4rem);
  --step-5:  clamp(2.75rem, 1.8rem + 4.8vw, 5.5rem);

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;
  --space-10: 8rem;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;

  /* Shadow */
  --shadow-sm: 0 1px 2px 0 rgb(15 23 42 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(15 23 42 / 0.08), 0 2px 4px -2px rgb(15 23 42 / 0.04);
  --shadow-lg: 0 10px 30px -5px rgb(15 23 42 / 0.12), 0 4px 12px -4px rgb(15 23 42 / 0.06);
  --shadow-xl: 0 25px 50px -12px rgb(15 23 42 / 0.15);

  /* Layout */
  --container: 1200px;
  --container-narrow: 960px;
  --header-height: 68px;

  /* Transition */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   Reset & Base
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-height) + 1rem);
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--step-0);
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "cv11", "ss01", "ss03";
}

img, svg { max-width: 100%; height: auto; display: block; }

h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.022em;
  color: var(--text);
}

h1 { font-size: var(--step-4); letter-spacing: -0.03em; }
h2 { font-size: var(--step-3); letter-spacing: -0.025em; }
h3 { font-size: var(--step-2); }
h4 { font-size: var(--step-1); }

p { margin: 0 0 1rem 0; color: var(--text-muted); }

a { color: var(--accent); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--accent-hover); }

code, pre, kbd, samp { font-family: var(--font-mono); font-size: 0.92em; }

::selection { background: var(--teal-200); color: var(--teal-900); }

/* ==========================================================================
   Utilities
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-5);
}

.container-narrow {
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding: 0 var(--space-5);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-4);
}

.eyebrow::before {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--accent);
}

.mono { font-family: var(--font-mono); }

.text-muted { color: var(--text-muted); }
.text-subtle { color: var(--text-subtle); }
.text-center { text-align: center; }

/* ==========================================================================
   Grid Background Pattern
   ========================================================================== */

.grid-bg {
  position: relative;
  background-color: var(--bg);
  background-image:
    linear-gradient(var(--bg-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--bg-grid) 1px, transparent 1px);
  background-size: 48px 48px;
  background-position: -1px -1px;
}

.grid-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center top, transparent 0%, var(--bg) 80%);
  pointer-events: none;
}

.grid-bg > * { position: relative; z-index: 1; }

.dot-bg {
  background-color: var(--bg);
  background-image: radial-gradient(circle, var(--slate-200) 1px, transparent 1px);
  background-size: 24px 24px;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--text);
}

.brand-mark {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--teal-600), var(--teal-800));
  border-radius: var(--radius-md);
  color: white;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: -0.02em;
  box-shadow: 0 2px 6px -1px rgba(8, 145, 178, 0.35);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
}

.brand-name {
  font-weight: 700;
  font-size: 1.02rem;
  letter-spacing: -0.015em;
}

.brand-sub {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-subtle);
  letter-spacing: 0.02em;
}

.nav-main {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.nav-main a {
  color: var(--text);
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
  padding: 0.5rem 0;
}

.nav-main a:hover { color: var(--accent); }

.nav-main a.active { color: var(--accent); }
.nav-main a.active::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 2px;
  background: var(--accent);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.lang-switch {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
}

.lang-switch a {
  padding: 0.35rem 0.7rem;
  color: var(--text-muted);
  background: var(--surface);
  transition: all var(--transition-fast);
}

.lang-switch a.active {
  background: var(--text);
  color: white;
}

.lang-switch a:not(.active):hover {
  background: var(--surface-2);
  color: var(--text);
}

/* Mobile menu button */
.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  width: 40px;
  height: 40px;
  padding: 0;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  color: var(--text);
}

.nav-toggle svg { width: 20px; height: 20px; }

@media (max-width: 860px) {
  .nav-main {
    position: fixed;
    top: var(--header-height);
    left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: var(--space-4);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition-base), opacity var(--transition-base);
    box-shadow: var(--shadow-lg);
  }
  .nav-main.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-main a {
    padding: 0.9rem 0.5rem;
    border-bottom: 1px solid var(--border);
  }
  .nav-main a:last-of-type { border-bottom: 0; }
  .nav-toggle { display: inline-flex; }
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.75rem 1.25rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.005em;
  text-decoration: none;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: white;
  box-shadow: 0 1px 2px 0 rgb(8 145 178 / 0.1), inset 0 1px 0 0 rgba(255,255,255,0.18);
}

.btn-primary:hover {
  background: var(--accent-hover);
  color: white;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px -2px rgb(8 145 178 / 0.3);
}

.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border-color: var(--border-strong);
}

.btn-secondary:hover {
  background: var(--surface-2);
  border-color: var(--slate-400);
  color: var(--text);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
}

.btn-ghost:hover {
  background: var(--surface-2);
  color: var(--text);
}

.btn-arrow { transition: transform var(--transition-fast); }
.btn:hover .btn-arrow { transform: translateX(3px); }

.btn-lg {
  padding: 0.95rem 1.6rem;
  font-size: 1rem;
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  position: relative;
  padding: var(--space-9) 0 var(--space-8);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: var(--space-7);
  align-items: center;
}

@media (max-width: 960px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
}

.hero h1 {
  font-size: var(--step-5);
  line-height: 1.02;
  margin-bottom: var(--space-4);
  letter-spacing: -0.035em;
}

.hero h1 .accent {
  color: var(--accent);
  position: relative;
  display: inline-block;
}

.hero h1 .accent::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: 0.08em;
  height: 0.12em;
  background: var(--teal-200);
  z-index: -1;
}

.hero-lead {
  font-size: var(--step-1);
  line-height: 1.55;
  color: var(--text-muted);
  margin-bottom: var(--space-6);
  max-width: 56ch;
}

.hero-cta {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-bottom: var(--space-6);
}

.hero-meta {
  display: flex;
  gap: var(--space-6);
  flex-wrap: wrap;
  padding-top: var(--space-5);
  border-top: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-muted);
}

.hero-meta-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.hero-meta-item strong {
  color: var(--text);
  font-size: 1.1rem;
  font-weight: 700;
}

.hero-meta-item span {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.7rem;
  color: var(--text-subtle);
}

/* ==========================================================================
   Terminal Block (hero right side)
   ========================================================================== */

.terminal {
  background: var(--term-bg);
  border: 1px solid var(--term-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl), 0 0 0 1px rgba(8, 145, 178, 0.08);
  overflow: hidden;
  position: relative;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.7;
}

.terminal::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 50% at 50% 0%, rgba(8, 145, 178, 0.08), transparent 60%);
  pointer-events: none;
}

.terminal-head {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: rgba(255,255,255,0.03);
  border-bottom: 1px solid var(--term-border);
}

.terminal-dots {
  display: flex;
  gap: 6px;
}

.terminal-dots span {
  width: 11px; height: 11px;
  border-radius: 50%;
  display: block;
}

.terminal-dots span:nth-child(1) { background: #ff5f57; }
.terminal-dots span:nth-child(2) { background: #febc2e; }
.terminal-dots span:nth-child(3) { background: #28c840; }

.terminal-title {
  margin-left: var(--space-2);
  font-size: 0.78rem;
  color: var(--term-muted);
  letter-spacing: 0.02em;
}

.terminal-body {
  padding: var(--space-5) var(--space-5);
  color: var(--term-text);
  min-height: 320px;
}

.term-line { display: block; }
.term-prompt { color: var(--term-accent); margin-right: 0.5rem; }
.term-cmd { color: var(--term-text); }
.term-branch { color: var(--term-muted); }
.term-ok { color: var(--term-green); }
.term-warn { color: var(--term-amber); }
.term-label { color: var(--term-muted); }
.term-value { color: var(--term-text); }
.term-accent { color: var(--term-accent); }

.term-cursor {
  display: inline-block;
  width: 0.55em;
  height: 1.05em;
  background: var(--term-accent);
  vertical-align: text-bottom;
  margin-left: 2px;
  animation: blink 1s steps(2) infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

/* Typing animation container */
.term-typing .term-line {
  opacity: 0;
  animation: termReveal 400ms ease forwards;
}

@keyframes termReveal {
  from { opacity: 0; transform: translateY(2px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   Trust / Logo Bar
   ========================================================================== */

.trust-bar {
  padding: var(--space-6) 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-soft);
}

.trust-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-6);
  align-items: center;
}

.trust-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-subtle);
  max-width: 140px;
  line-height: 1.4;
}

.trust-items {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-5) var(--space-6);
  align-items: center;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 500;
}

.trust-item-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

@media (max-width: 720px) {
  .trust-grid { grid-template-columns: 1fr; gap: var(--space-4); }
}

/* ==========================================================================
   Section Base
   ========================================================================== */

.section {
  padding: var(--space-9) 0;
}

.section-narrow {
  padding: var(--space-8) 0;
}

.section-head {
  margin-bottom: var(--space-7);
  max-width: 720px;
}

.section-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-head h2 {
  margin-bottom: var(--space-3);
}

.section-lead {
  font-size: var(--step-1);
  color: var(--text-muted);
  line-height: 1.5;
  margin: 0;
}

/* ==========================================================================
   Module Grid (30+ moduli)
   ========================================================================== */

.modules-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-4);
}

.module-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-5);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.module-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-slow);
}

.module-card:hover {
  border-color: var(--teal-300);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.module-card:hover::before {
  transform: scaleX(1);
}

.module-card-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-3);
}

.module-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--accent-soft);
  color: var(--accent);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.module-icon svg { width: 20px; height: 20px; }

.module-card-num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-subtle);
  letter-spacing: 0.08em;
}

.module-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
  margin: 0;
}

.module-card p {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.55;
  margin: 0;
  flex: 1;
}

.module-card-foot {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  font-weight: 500;
  letter-spacing: 0.02em;
  padding-top: var(--space-2);
  border-top: 1px dashed var(--border);
  transition: gap var(--transition-fast);
}

.module-card:hover .module-card-foot {
  gap: var(--space-3);
}

/* ==========================================================================
   Materials / Downloads
   ========================================================================== */

.materials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: var(--space-5);
  max-width: 980px;
  margin: 0 auto;
}

.material-card {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-5) var(--space-4);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: var(--text);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.material-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--teal-300));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-slow);
}

.material-card:hover {
  border-color: var(--teal-300);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.material-card:hover::before {
  transform: scaleX(1);
}

.material-icon {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--teal-50), var(--teal-100));
  color: var(--accent);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.material-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.material-body h3 {
  font-size: 1.15rem;
  margin: 0;
  color: var(--text);
  letter-spacing: -0.01em;
}

.material-body p {
  color: var(--text-muted);
  font-size: 0.93rem;
  line-height: 1.55;
  margin: 0;
}

.material-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  margin-top: var(--space-1);
}

.material-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-2);
  padding-top: var(--space-2);
  border-top: 1px dashed var(--border);
  color: var(--accent);
  font-weight: 600;
  font-size: 0.9rem;
  transition: gap var(--transition-fast);
}

.material-card:hover .material-cta {
  gap: var(--space-3);
}

@media (max-width: 480px) {
  .material-card {
    padding: var(--space-4);
  }
  .material-icon {
    width: 44px;
    height: 44px;
  }
  .material-icon svg {
    width: 22px;
    height: 22px;
  }
}

/* ==========================================================================
   Feature / Benefit blocks
   ========================================================================== */

.features-split {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-8);
  align-items: center;
  margin-bottom: var(--space-8);
}

.features-split.reverse { grid-template-columns: 1.2fr 1fr; }
.features-split.reverse .features-split-text { order: 2; }
.features-split.reverse .features-split-visual { order: 1; }

@media (max-width: 860px) {
  .features-split, .features-split.reverse {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }
  .features-split.reverse .features-split-text { order: 1; }
  .features-split.reverse .features-split-visual { order: 2; }
}

.features-split-text h3 {
  margin-bottom: var(--space-4);
  font-size: var(--step-2);
}

.features-list {
  list-style: none;
  padding: 0;
  margin: var(--space-4) 0 0 0;
  display: grid;
  gap: var(--space-3);
}

.features-list li {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  color: var(--text);
  font-size: 0.98rem;
  line-height: 1.55;
}

.features-list li::before {
  content: '';
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 3px;
  background: var(--accent-soft);
  border-radius: 50%;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%230891b2'%3E%3Cpath fill-rule='evenodd' d='M16.704 4.153a.75.75 0 0 1 .143 1.052l-8 10.5a.75.75 0 0 1-1.127.075l-4.5-4.5a.75.75 0 0 1 1.06-1.06l3.894 3.893 7.48-9.817a.75.75 0 0 1 1.05-.143Z' clip-rule='evenodd' /%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 14px 14px;
}

/* ==========================================================================
   Visual mockup (dashboard preview block)
   ========================================================================== */

.mockup {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
}

.mockup-head {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--slate-50);
  border-bottom: 1px solid var(--border);
}

.mockup-dots {
  display: flex;
  gap: 5px;
}

.mockup-dots span {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--slate-300);
}

.mockup-url {
  flex: 1;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.35rem 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}

.mockup-url::before {
  content: '🔒 ';
  opacity: 0.5;
}

.mockup-body {
  padding: var(--space-4);
  min-height: 320px;
}

.mockup-img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
}

/* Placeholder for missing screenshots */
.screenshot-placeholder {
  aspect-ratio: 16 / 9;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background:
    linear-gradient(135deg, var(--slate-50) 25%, transparent 25%),
    linear-gradient(225deg, var(--slate-50) 25%, transparent 25%),
    linear-gradient(45deg, var(--slate-50) 25%, transparent 25%),
    linear-gradient(315deg, var(--slate-50) 25%, var(--slate-100) 25%);
  background-size: 20px 20px;
  background-position: 10px 0, 10px 0, 0 0, 0 0;
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius-md);
  color: var(--text-subtle);
  text-align: center;
  padding: var(--space-5);
}

.screenshot-placeholder svg {
  width: 44px; height: 44px;
  color: var(--slate-400);
  margin-bottom: var(--space-3);
}

.screenshot-placeholder strong {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: var(--space-1);
}

.screenshot-placeholder span {
  font-size: 0.78rem;
  font-family: var(--font-mono);
  color: var(--text-subtle);
}

/* ==========================================================================
   KPI / stat chip
   ========================================================================== */

.kpi-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.kpi-chip {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  position: relative;
  overflow: hidden;
}

.kpi-chip::before {
  content: '';
  position: absolute;
  left: 0; top: 0;
  bottom: 0;
  width: 3px;
  background: var(--accent);
}

.kpi-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-subtle);
  margin-bottom: 2px;
}

.kpi-value {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
}

.kpi-value .unit {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-left: 2px;
}

/* ==========================================================================
   Tech stack
   ========================================================================== */

.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-4);
}

.tech-block {
  padding: var(--space-5);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.tech-block h4 {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--border);
  color: var(--text);
}

.tech-block h4::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tech-tag {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  padding: 0.3rem 0.6rem;
  background: var(--slate-50);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-weight: 500;
}

/* ==========================================================================
   Why cards
   ========================================================================== */

.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-4);
}

.why-card {
  padding: var(--space-5);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  position: relative;
  transition: all var(--transition-base);
}

.why-card:hover {
  border-color: var(--teal-300);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.why-num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: var(--space-3);
  display: block;
}

.why-card h4 {
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-3);
  color: var(--text);
}

.why-card p {
  font-size: 0.94rem;
  line-height: 1.6;
  color: var(--text-muted);
  margin: 0;
}

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

.process-list {
  display: grid;
  gap: var(--space-3);
  counter-reset: process-step;
}

.process-step {
  display: grid;
  grid-template-columns: 80px 1fr auto;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  align-items: center;
  transition: all var(--transition-base);
}

.process-step:hover {
  border-color: var(--teal-300);
  background: var(--accent-soft);
}

.process-step-num {
  font-family: var(--font-mono);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
}

.process-step-num::before { content: '0'; opacity: 0.4; }

.process-step h4 {
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 2px 0;
  color: var(--text);
}

.process-step p {
  font-size: 0.9rem;
  margin: 0;
  color: var(--text-muted);
}

.process-step-duration {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-subtle);
  font-weight: 500;
  padding: 0.25rem 0.6rem;
  background: var(--slate-50);
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

@media (max-width: 640px) {
  .process-step {
    grid-template-columns: 48px 1fr;
    gap: var(--space-3);
  }
  .process-step-duration {
    grid-column: 1 / -1;
    justify-self: start;
    margin-top: var(--space-1);
  }
}

/* ==========================================================================
   CTA Band
   ========================================================================== */

.cta-band {
  position: relative;
  background: var(--slate-900);
  color: white;
  padding: var(--space-9) 0;
  overflow: hidden;
  isolation: isolate;
}

.cta-band::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(30, 41, 59, 0.6) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 41, 59, 0.6) 1px, transparent 1px);
  background-size: 48px 48px;
  z-index: -1;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black 30%, transparent 75%);
}

.cta-band::after {
  content: '';
  position: absolute;
  top: -30%;
  left: 50%;
  transform: translateX(-50%);
  width: 120%;
  height: 80%;
  background: radial-gradient(ellipse at center, rgba(8, 145, 178, 0.25), transparent 60%);
  z-index: -1;
  pointer-events: none;
}

.cta-band h2 {
  color: white;
  margin-bottom: var(--space-4);
}

.cta-band p {
  color: var(--slate-300);
  font-size: var(--step-1);
  max-width: 56ch;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--space-6);
}

.cta-band .btn-primary {
  background: white;
  color: var(--slate-900);
}

.cta-band .btn-primary:hover {
  background: var(--teal-100);
  color: var(--slate-900);
}

.cta-band .btn-secondary {
  background: transparent;
  color: white;
  border-color: rgba(255,255,255,0.25);
}

.cta-band .btn-secondary:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.4);
  color: white;
}

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

.site-footer {
  background: var(--slate-50);
  border-top: 1px solid var(--border);
  padding: var(--space-8) 0 var(--space-5);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: var(--space-6);
  margin-bottom: var(--space-7);
}

@media (max-width: 860px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 520px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-brand .brand { margin-bottom: var(--space-4); }

.footer-brand p {
  font-size: 0.92rem;
  color: var(--text-muted);
  max-width: 36ch;
  margin: 0 0 var(--space-4) 0;
}

.footer-col h5 {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-subtle);
  margin: 0 0 var(--space-4) 0;
  font-weight: 600;
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: var(--space-2);
}

.footer-col a {
  color: var(--text-muted);
  font-size: 0.92rem;
  transition: color var(--transition-fast);
}

.footer-col a:hover { color: var(--accent); }

.footer-bottom {
  padding-top: var(--space-5);
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
  font-size: 0.85rem;
  color: var(--text-subtle);
  font-family: var(--font-mono);
}

.footer-bottom-links { display: flex; gap: var(--space-5); }

/* ==========================================================================
   Page Hero (module sub-pages)
   ========================================================================== */

.page-hero {
  padding: var(--space-8) 0 var(--space-6);
  border-bottom: 1px solid var(--border);
  position: relative;
}

.page-hero .breadcrumbs {
  display: flex;
  gap: var(--space-2);
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-subtle);
  margin-bottom: var(--space-4);
}

.page-hero .breadcrumbs a {
  color: var(--text-muted);
}

.page-hero .breadcrumbs a:hover { color: var(--accent); }

.page-hero .breadcrumbs .sep {
  color: var(--slate-300);
}

.page-hero h1 {
  font-size: var(--step-4);
  margin-bottom: var(--space-4);
  max-width: 24ch;
}

.page-hero-lead {
  font-size: var(--step-1);
  color: var(--text-muted);
  max-width: 64ch;
  margin: 0;
}

/* ==========================================================================
   Screenshot section (module pages)
   ========================================================================== */

.screenshot-section {
  padding: var(--space-8) 0;
  border-bottom: 1px solid var(--border);
}

.screenshot-section:last-child { border-bottom: 0; }

.screenshot-section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
}

.screenshot-section-head-text {
  max-width: 640px;
}

.screenshot-section h2 {
  font-size: var(--step-2);
  margin: 0 0 var(--space-2) 0;
}

.screenshot-section-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
}

.screenshot-wrap {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--slate-50);
  box-shadow: var(--shadow-lg);
}

.screenshot-wrap img {
  display: block;
  width: 100%;
  height: auto;
}

.screenshot-caption {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-subtle);
  margin-top: var(--space-3);
  padding-left: var(--space-2);
  border-left: 2px solid var(--accent);
}

.screenshot-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-5);
}

.screenshot-feature {
  padding: var(--space-3) var(--space-4);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.screenshot-feature-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-1);
  font-weight: 600;
}

.screenshot-feature-desc {
  font-size: 0.88rem;
  color: var(--text);
  line-height: 1.5;
}

/* ==========================================================================
   Prev / Next module navigation
   ========================================================================== */

.module-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin: var(--space-7) 0 var(--space-6);
}

@media (max-width: 640px) {
  .module-nav { grid-template-columns: 1fr; }
}

.module-nav-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-4) var(--space-5);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all var(--transition-base);
}

.module-nav-card.next { text-align: right; align-items: flex-end; }

.module-nav-card:hover {
  border-color: var(--teal-300);
  background: var(--accent-soft);
}

.module-nav-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-subtle);
}

.module-nav-title {
  font-weight: 600;
  color: var(--text);
  display: flex;
  gap: var(--space-2);
  align-items: center;
}

/* ==========================================================================
   Form styles
   ========================================================================== */

.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-7);
  align-items: start;
}

@media (max-width: 860px) {
  .contact-grid { grid-template-columns: 1fr; }
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

@media (max-width: 560px) {
  .form-row { grid-template-columns: 1fr; }
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.form-field label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 600;
}

.form-field input,
.form-field textarea,
.form-field select {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  padding: 0.7rem 0.9rem;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  color: var(--text);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  width: 100%;
}

.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--teal-100);
}

.form-field textarea {
  resize: vertical;
  min-height: 120px;
}

.contact-info-card {
  background: var(--slate-900);
  color: white;
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  position: relative;
  overflow: hidden;
}

.contact-info-card::before {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 180px; height: 180px;
  background: radial-gradient(circle at top right, rgba(8, 145, 178, 0.3), transparent 70%);
  pointer-events: none;
}

.contact-info-card h3 {
  color: white;
  font-size: 1.2rem;
  margin-bottom: var(--space-5);
  position: relative;
}

.contact-info-item {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  margin-bottom: var(--space-4);
  position: relative;
}

.contact-info-item-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal-300);
  margin-bottom: 2px;
  display: block;
}

.contact-info-item-value a {
  color: white;
  font-weight: 500;
}

.contact-info-item-value a:hover { color: var(--teal-300); }

.contact-info-item svg {
  width: 18px; height: 18px;
  color: var(--teal-400);
  flex-shrink: 0;
  margin-top: 3px;
}

/* ==========================================================================
   Reveal animation on scroll
   ========================================================================== */

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 600ms ease, transform 600ms cubic-bezier(0.2, 0.8, 0.3, 1);
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.reveal-children > * {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 500ms ease, transform 500ms cubic-bezier(0.2, 0.8, 0.3, 1);
}

.reveal-children.in-view > *:nth-child(1) { transition-delay: 0ms; }
.reveal-children.in-view > *:nth-child(2) { transition-delay: 60ms; }
.reveal-children.in-view > *:nth-child(3) { transition-delay: 120ms; }
.reveal-children.in-view > *:nth-child(4) { transition-delay: 180ms; }
.reveal-children.in-view > *:nth-child(5) { transition-delay: 240ms; }
.reveal-children.in-view > *:nth-child(6) { transition-delay: 300ms; }
.reveal-children.in-view > *:nth-child(n+7) { transition-delay: 360ms; }

.reveal-children.in-view > * {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .reveal, .reveal-children > * { opacity: 1; transform: none; }
}