/* ==========================================================================
   Scharly Robotics – Design System
   ========================================================================== */

:root {
  --bg-0: #06080d;
  --bg-1: #0b0f17;
  --bg-2: #111723;
  --bg-3: #161d2c;
  --border: #232b3d;
  --text-0: #eef1f7;
  --text-1: #b7c0d1;
  --text-2: #7c8aa3;
  --accent: #36c6f0;
  --accent-2: #6f5bf0;
  --accent-glow: rgba(54, 198, 240, 0.35);
  --success: #3ee08a;
  --radius: 14px;
  --maxw: 1180px;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: "JetBrains Mono", "SF Mono", Consolas, monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg-0);
  color: var(--text-1);
  font-family: var(--font);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 15% 0%, rgba(54, 198, 240, 0.08), transparent 45%),
    radial-gradient(circle at 85% 20%, rgba(111, 91, 240, 0.10), transparent 45%);
  pointer-events: none;
  z-index: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

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

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

h1, h2, h3, h4 {
  color: var(--text-0);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.2;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.7rem, 3.2vw, 2.4rem); margin-bottom: 14px; }
h3 { font-size: 1.25rem; margin-bottom: 8px; }

p { color: var(--text-1); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}

.eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
}

/* ---------- Header / Nav ---------- */
header.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(6, 8, 13, 0.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  max-width: var(--maxw);
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text-0);
}

.logo-mark {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 0.8rem;
  color: #06080d;
  font-weight: 800;
}

.logo small {
  display: block;
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--text-2);
  letter-spacing: 0.05em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
  font-size: 0.92rem;
}

.nav-links a {
  color: var(--text-1);
  transition: color 0.15s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-0);
}

.nav-cta {
  background: var(--accent);
  color: #06121a;
  padding: 9px 18px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.88rem;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.nav-cta:hover {
  box-shadow: 0 0 22px var(--accent-glow);
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-0);
  width: 38px;
  height: 38px;
  font-size: 1.1rem;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 9px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #06121a;
}

.btn-primary:hover {
  box-shadow: 0 0 28px var(--accent-glow);
  transform: translateY(-1px);
}

.btn-secondary {
  background: transparent;
  border-color: var(--border);
  color: var(--text-0);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ---------- Hero ---------- */
.hero {
  padding: 110px 0 90px;
  text-align: left;
}

.hero .container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.hero h1 {
  margin-bottom: 18px;
}

.hero .lead {
  font-size: 1.1rem;
  color: var(--text-1);
  max-width: 540px;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-visual {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--text-2);
  box-shadow: 0 30px 80px -40px rgba(54, 198, 240, 0.25);
}

.hero-visual .line { margin-bottom: 6px; white-space: pre; }
.hero-visual .accent { color: var(--accent); }
.hero-visual .accent2 { color: var(--accent-2); }
.hero-visual .ok { color: var(--success); }

.page-hero {
  padding: 70px 0 50px;
  border-bottom: 1px solid var(--border);
}

.page-hero .lead {
  max-width: 700px;
  font-size: 1.05rem;
}

/* ---------- Sections ---------- */
section {
  padding: 80px 0;
  position: relative;
  z-index: 1;
}

.section-head {
  max-width: 640px;
  margin-bottom: 48px;
}

.section-alt {
  background: var(--bg-1);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

/* ---------- Grids / Cards ---------- */
.grid {
  display: grid;
  gap: 24px;
}

.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-5 { grid-template-columns: repeat(5, 1fr); }

.card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}

.card .icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--bg-3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 18px;
  border: 1px solid var(--border);
}

.card p {
  font-size: 0.93rem;
  color: var(--text-1);
}

.card .card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
}

.tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.72rem;
  background: var(--bg-3);
  border: 1px solid var(--border);
  color: var(--text-2);
  padding: 4px 10px;
  border-radius: 6px;
  margin: 0 6px 6px 0;
}

/* ---------- Stats ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat .num {
  font-family: var(--mono);
  font-size: 2.1rem;
  font-weight: 800;
  color: var(--accent);
}

.stat .label {
  font-size: 0.85rem;
  color: var(--text-2);
  margin-top: 4px;
}

/* ---------- Process / Steps ---------- */
.steps {
  display: grid;
  gap: 18px;
}

.step {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 20px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.step .step-num {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-3);
  border: 1px solid var(--accent);
  color: var(--accent);
  font-family: var(--mono);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ---------- CTA band ---------- */
.cta-band {
  background: linear-gradient(135deg, rgba(54,198,240,0.12), rgba(111,91,240,0.12));
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 56px;
  text-align: center;
  margin: 0 auto;
}

.cta-band h2 { margin-bottom: 10px; }
.cta-band p { max-width: 520px; margin: 0 auto 28px; }

/* ---------- Forms ---------- */
.form-grid {
  display: grid;
  gap: 18px;
}

label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-2);
  margin-bottom: 6px;
}

input, textarea, select {
  width: 100%;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 12px 14px;
  color: var(--text-0);
  font-family: var(--font);
  font-size: 0.95rem;
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--accent);
}

.form-row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

/* ---------- Footer ---------- */
footer.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-1);
  padding: 56px 0 28px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 36px;
}

.footer-col h4 {
  font-size: 0.85rem;
  color: var(--text-0);
  margin-bottom: 14px;
  letter-spacing: 0.03em;
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: 10px;
  font-size: 0.88rem;
}

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

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-2);
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- Breadcrumb ---------- */
.breadcrumb {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--text-2);
  margin-bottom: 18px;
}

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

/* ---------- Detail page specific ---------- */
.detail-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
  margin-bottom: 64px;
}

.detail-block.reverse .col-text { order: 2; }
.detail-block.reverse .col-visual { order: 1; }

.checklist {
  list-style: none;
  margin-top: 18px;
}

.checklist li {
  display: flex;
  gap: 10px;
  margin-bottom: 10px;
  font-size: 0.93rem;
  color: var(--text-1);
}

.checklist li::before {
  content: "✓";
  color: var(--success);
  font-weight: 700;
  flex-shrink: 0;
}

.code-panel {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--text-2);
  overflow-x: auto;
}

.code-panel .c1 { color: var(--accent); }
.code-panel .c2 { color: var(--accent-2); }
.code-panel .c3 { color: var(--success); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero .container { grid-template-columns: 1fr; }
  .grid-3, .grid-2, .grid-5 { grid-template-columns: 1fr 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .detail-block { grid-template-columns: 1fr; }
  .detail-block.reverse .col-text { order: 1; }
  .detail-block.reverse .col-visual { order: 2; }
}

@media (max-width: 640px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; }
  .grid-3, .grid-2, .grid-5 { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .form-row-2 { grid-template-columns: 1fr; }
  .cta-band { padding: 36px 22px; }
  section { padding: 56px 0; }
}