/* =========================================================
   Velrix — Global Styles
   Dark minimal, electric blue accent
   ========================================================= */

:root {
  --bg-primary:    #0a0a0b;
  --bg-secondary:  #111114;
  --bg-card:       #16161a;
  --bg-card-hover: #1c1c22;
  --border:        rgba(255,255,255,0.07);
  --border-accent: rgba(64,144,255,0.3);

  --text-primary:  #f0f0f5;
  --text-secondary:#a0a0b0;
  --text-muted:    #606070;

  --accent:        #4090ff;
  --accent-dim:    rgba(64,144,255,0.15);
  --accent-glow:   rgba(64,144,255,0.25);

  --font:          'Inter', system-ui, -apple-system, sans-serif;
  --radius:        12px;
  --radius-lg:     20px;
  --transition:    0.25s ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

/* ── Typography ── */
h1,h2,h3,h4 { line-height: 1.2; font-weight: 700; letter-spacing: -0.02em; }
h1 { font-size: clamp(2.4rem, 6vw, 4rem); }
h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); }
h3 { font-size: 1.15rem; font-weight: 600; }
p  { color: var(--text-secondary); font-size: 1rem; line-height: 1.75; }

/* ── Utility ── */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section { padding: 6rem 0; }

.label {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid var(--border-accent);
  border-radius: 100px;
  padding: 0.3rem 0.85rem;
  margin-bottom: 1.25rem;
}

.accent { color: var(--accent); }

/* ── Abstract background shapes ── */
.bg-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 0;
}

/* ── NAV ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(10,10,11,0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}

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

.nav-logo {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}

.nav-logo span { color: var(--accent); }

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: color var(--transition);
}

.nav-links a:hover { color: var(--text-primary); }

.nav-cta {
  background: var(--accent);
  color: #fff !important;
  padding: 0.45rem 1.1rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.85rem !important;
  transition: opacity var(--transition) !important;
}

.nav-cta:hover { opacity: 0.85; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ── HERO ── */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 64px;
}

#hero .blob-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(64,144,255,0.18) 0%, transparent 70%);
  top: -100px; right: -150px;
}

#hero .blob-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(64,144,255,0.08) 0%, transparent 70%);
  bottom: 50px; left: -100px;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 760px;
}

.hero-headline {
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, #ffffff 40%, #a0b8d8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin-bottom: 2.5rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.75rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: #5aa0ff;
  transform: translateY(-1px);
  box-shadow: 0 8px 30px var(--accent-glow);
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
}

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

/* ── Divider line ── */
.divider {
  width: 100%;
  height: 1px;
  background: var(--border);
}

/* ── ABOUT ── */
#about { background: var(--bg-secondary); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-visual {
  position: relative;
  height: 320px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-visual-inner {
  position: relative;
  width: 200px;
  height: 200px;
}

.ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid var(--border-accent);
  animation: spin linear infinite;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
}

.ring-1 { width: 80px;  height: 80px;  animation-duration: 8s; }
.ring-2 { width: 130px; height: 130px; animation-duration: 12s; opacity: 0.6; }
.ring-3 { width: 190px; height: 190px; animation-duration: 18s; opacity: 0.35; }

.ring-dot {
  position: absolute;
  top: -3px; left: 50%;
  width: 6px; height: 6px;
  margin-left: -3px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
}

@keyframes spin { to { transform: translate(-50%, -50%) rotate(360deg); } }

.about-core {
  position: absolute;
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 30px var(--accent-glow), 0 0 60px var(--accent-glow);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
}

.about-text p { margin-bottom: 1.25rem; }

.about-stats {
  display: flex;
  gap: 2rem;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.stat-item {}
.stat-num {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--accent);
  display: block;
}
.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ── WHAT WE DO ── */
#services {}

.section-header { margin-bottom: 3rem; }

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.service-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-accent);
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.4);
}

.service-card:hover::before { opacity: 1; }

.service-icon {
  width: 44px; height: 44px;
  border-radius: 10px;
  background: var(--accent-dim);
  border: 1px solid var(--border-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  margin-bottom: 1.25rem;
}

.service-card h3 { margin-bottom: 0.6rem; }
.service-card p  { font-size: 0.9rem; color: var(--text-muted); }

/* ── OPERATING MODEL ── */
#model { background: var(--bg-secondary); }

.model-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.model-steps { display: flex; flex-direction: column; gap: 0; }

.model-step {
  display: flex;
  gap: 1.25rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border);
  position: relative;
}

.model-step:last-child { border-bottom: none; }

.step-num {
  flex-shrink: 0;
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--accent-dim);
  border: 1px solid var(--border-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent);
}

.step-body h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
}

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

.model-desc h2 { margin-bottom: 1.5rem; }
.model-desc p  { margin-bottom: 1.25rem; font-size: 0.95rem; }

.model-note {
  margin-top: 1.5rem;
  padding: 1.25rem;
  background: var(--accent-dim);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius);
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* ── CONTACT ── */
#contact {}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 4rem;
  align-items: start;
}

.contact-info h2 { margin-bottom: 1rem; }
.contact-info > p { margin-bottom: 2rem; }

.contact-items { display: flex; flex-direction: column; gap: 1.25rem; }

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.contact-icon {
  width: 40px; height: 40px;
  flex-shrink: 0;
  border-radius: 10px;
  background: var(--accent-dim);
  border: 1px solid var(--border-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.contact-detail strong {
  display: block;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

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

.contact-form-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.contact-form-card h3 { margin-bottom: 0.4rem; }
.contact-form-card > p { font-size: 0.875rem; color: var(--text-muted); margin-bottom: 1.75rem; }

.form-group { margin-bottom: 1.25rem; }

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  letter-spacing: 0.04em;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 0.9rem;
  transition: border-color var(--transition);
  outline: none;
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.form-group select option { background: var(--bg-secondary); }

.form-note {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 1rem;
  text-align: center;
  line-height: 1.5;
}

.form-note a { color: var(--accent); text-decoration: underline; }

/* ── FOOTER ── */
footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 3rem 0 2rem;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.footer-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 2rem;
}

.footer-brand {}
.footer-logo {
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 0.5rem;
}

.footer-tagline { font-size: 0.85rem; color: var(--text-muted); }

.footer-links {
  display: flex;
  gap: 1.75rem;
  align-items: center;
}

.footer-links a {
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: color var(--transition);
}

.footer-links a:hover { color: var(--text-primary); }

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

/* ── Static page (privacy/terms) ── */
.page-wrap {
  padding-top: 100px;
  padding-bottom: 6rem;
  max-width: 760px;
  margin: 0 auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.page-wrap h1 { margin-bottom: 0.5rem; }
.page-wrap .page-date { color: var(--text-muted); font-size: 0.875rem; margin-bottom: 3rem; }
.page-wrap h2 { font-size: 1.3rem; margin: 2.5rem 0 0.75rem; }
.page-wrap p  { margin-bottom: 1rem; }
.page-wrap ul { padding-left: 1.5rem; list-style: disc; color: var(--text-secondary); }
.page-wrap ul li { margin-bottom: 0.5rem; font-size: 0.95rem; }

/* ── Scroll reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

/* ── Mobile nav ── */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: fixed;
    top: 64px; left: 0; right: 0;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 1.5rem;
    gap: 1.25rem;
    align-items: flex-start;
  }

  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; }

  .about-grid,
  .model-grid,
  .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }

  .about-visual { height: 220px; }

  .services-grid { grid-template-columns: 1fr; }

  .footer-top { flex-direction: column; }
  .footer-bottom { flex-direction: column; gap: 0.75rem; text-align: center; }

  .hero-actions { flex-direction: column; width: fit-content; }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
}