/* ==========================================================================
   VEXIS TECHNOLOGY STUDIO — Core Design System
   Aesthetic: Dark Luxury Tech Studio / Cyber-Minimalist Glassmorphism
   ========================================================================== */

:root {
  /* Color Palette */
  --bg-dark: #07080d;
  --bg-card: rgba(18, 22, 38, 0.65);
  --bg-card-hover: rgba(26, 32, 54, 0.85);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(0, 240, 255, 0.3);
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  /* Brand Accents */
  --accent-cyan: #00f0ff;
  --accent-blue: #0072f5;
  --accent-indigo: #6366f1;
  --accent-purple: #a855f7;
  
  /* Venture Colors */
  --color-eternize: #f43f5e;
  --color-eternize-glow: rgba(244, 63, 94, 0.25);
  --color-sentinel: #10b981;
  --color-sentinel-glow: rgba(16, 185, 129, 0.25);
  --color-agency: #3b82f6;
  --color-agency-glow: rgba(59, 130, 246, 0.25);
  
  /* Fonts */
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  background-color: var(--bg-dark);
  color: var(--text-main);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  line-height: 1.6;
}

/* Background Ambient Canvas */
.ambient-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  pointer-events: none;
  background: 
    radial-gradient(circle at 15% 15%, rgba(99, 102, 241, 0.12) 0%, transparent 45%),
    radial-gradient(circle at 85% 25%, rgba(0, 240, 255, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 50% 85%, rgba(244, 63, 94, 0.06) 0%, transparent 60%),
    var(--bg-dark);
}

.grid-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  pointer-events: none;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 40%, transparent 100%);
}

/* Global Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

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

header.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7, 8, 13, 0.75);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  transition: var(--transition-fast);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-main);
}

.brand-icon {
  width: 32px;
  height: 32px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-icon svg {
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 0 12px rgba(0, 240, 255, 0.6));
}

.brand-title {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, #ffffff 40%, #94a3b8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-badge {
  font-size: 0.65rem;
  font-family: var(--font-mono);
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(0, 240, 255, 0.1);
  color: var(--accent-cyan);
  border: 1px solid rgba(0, 240, 255, 0.25);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition-fast);
  position: relative;
}

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

.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Language Switcher */
.lang-switcher {
  display: flex;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  padding: 3px;
  gap: 2px;
}

.lang-btn {
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 14px;
  cursor: pointer;
  transition: var(--transition-fast);
}

.lang-btn.active {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
}

.btn-header-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-indigo));
  color: #fff;
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: 999px;
  box-shadow: 0 0 20px rgba(0, 114, 245, 0.3);
  transition: var(--transition-smooth);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-header-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 25px rgba(0, 114, 245, 0.5);
}

/* Mobile Menu Toggle */
.mobile-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-main);
  cursor: pointer;
  padding: 8px;
}

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

section.hero-section {
  padding: 110px 0 80px;
  text-align: center;
  position: relative;
}

.status-indicator {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  margin-bottom: 24px;
  backdrop-filter: blur(10px);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 8px var(--accent-cyan);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 240, 255, 0.7); }
  70% { transform: scale(1.05); box-shadow: 0 0 0 8px rgba(0, 240, 255, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 240, 255, 0); }
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.04em;
  max-width: 900px;
  margin: 0 auto 24px;
}

.hero-title .gradient-text {
  background: linear-gradient(135deg, #ffffff 0%, #00f0ff 50%, #6366f1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto 36px;
  font-weight: 400;
  line-height: 1.7;
}

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

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, #ffffff, #e2e8f0);
  color: #07080d;
  font-size: 0.95rem;
  font-weight: 700;
  padding: 14px 28px;
  border-radius: 12px;
  text-decoration: none;
  box-shadow: 0 0 30px rgba(255, 255, 255, 0.2);
  transition: var(--transition-smooth);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 40px rgba(255, 255, 255, 0.35);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-main);
  border: 1px solid var(--border-subtle);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: 12px;
  text-decoration: none;
  backdrop-filter: blur(10px);
  transition: var(--transition-smooth);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

/* ==========================================================================
   Metrics Bar
   ========================================================================== */

.metrics-strip {
  padding: 24px 0;
  margin: 50px auto 0;
  max-width: 960px;
  background: rgba(18, 22, 38, 0.4);
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  backdrop-filter: blur(12px);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  divide-x: 1px solid var(--border-subtle);
}

.metric-item {
  text-align: center;
  padding: 12px 20px;
}

.metric-num {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: #fff;
  font-family: var(--font-sans);
}

.metric-num span.accent {
  color: var(--accent-cyan);
}

.metric-label {
  font-size: 0.8rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
  margin-top: 4px;
}

/* ==========================================================================
   Ecosystem / Ventures Section
   ========================================================================== */

section.ventures-section {
  padding: 100px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px;
}

.section-eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.ventures-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.venture-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 24px;
  padding: 36px 32px;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  backdrop-filter: blur(16px);
  transition: var(--transition-smooth);
}

.venture-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  opacity: 0;
  transition: var(--transition-smooth);
}

.venture-card:hover {
  transform: translateY(-6px);
  background: var(--bg-card-hover);
  border-color: rgba(255, 255, 255, 0.16);
}

/* Card Specific Theming */
.venture-card.eternize::before {
  background: linear-gradient(90deg, #f43f5e, #fb7185);
}
.venture-card.eternize:hover {
  box-shadow: 0 16px 40px var(--color-eternize-glow);
  border-color: rgba(244, 63, 94, 0.4);
}
.venture-card.eternize:hover::before { opacity: 1; }

.venture-card.sentinel::before {
  background: linear-gradient(90deg, #10b981, #00f0ff);
}
.venture-card.sentinel:hover {
  box-shadow: 0 16px 40px var(--color-sentinel-glow);
  border-color: rgba(16, 185, 129, 0.4);
}
.venture-card.sentinel:hover::before { opacity: 1; }

.venture-card.agency::before {
  background: linear-gradient(90deg, #3b82f6, #8b5cf6);
}
.venture-card.agency:hover {
  box-shadow: 0 16px 40px var(--color-agency-glow);
  border-color: rgba(59, 130, 246, 0.4);
}
.venture-card.agency:hover::before { opacity: 1; }

.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.venture-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
}

.venture-card.eternize .venture-icon-wrap {
  background: rgba(244, 63, 94, 0.12);
  border-color: rgba(244, 63, 94, 0.25);
  color: var(--color-eternize);
}

.venture-card.sentinel .venture-icon-wrap {
  background: rgba(16, 185, 129, 0.12);
  border-color: rgba(16, 185, 129, 0.25);
  color: var(--color-sentinel);
}

.venture-card.agency .venture-icon-wrap {
  background: rgba(59, 130, 246, 0.12);
  border-color: rgba(59, 130, 246, 0.25);
  color: var(--color-agency);
}

.venture-subdomain {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
  background: rgba(255, 255, 255, 0.04);
  padding: 4px 10px;
  border-radius: 6px;
  border: 1px solid var(--border-subtle);
}

.venture-name {
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 6px;
}

.venture-tagline {
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.venture-card.eternize .venture-tagline { color: var(--color-eternize); }
.venture-card.sentinel .venture-tagline { color: var(--color-sentinel); }
.venture-card.agency .venture-tagline { color: var(--color-agency); }

.venture-description {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 24px;
}

.venture-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}

.tag-badge {
  font-size: 0.72rem;
  font-family: var(--font-mono);
  padding: 4px 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  color: var(--text-muted);
}

.venture-link-btn {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 12px 18px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  border: 1px solid var(--border-subtle);
  transition: var(--transition-fast);
}

.venture-link-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.25);
}

.venture-link-btn svg {
  transition: transform var(--transition-fast);
}

.venture-link-btn:hover svg {
  transform: translateX(4px);
}

/* ==========================================================================
   Pillars & Architecture Section
   ========================================================================== */

section.pillars-section {
  padding: 90px 0;
  border-top: 1px solid var(--border-subtle);
  background: linear-gradient(180deg, rgba(18, 22, 38, 0.2) 0%, transparent 100%);
}

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.pillar-box {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: 18px;
  padding: 28px 24px;
  transition: var(--transition-fast);
}

.pillar-box:hover {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.15);
}

.pillar-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(0, 240, 255, 0.08);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.pillar-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: #fff;
}

.pillar-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ==========================================================================
   Contact / Studio Inquiries
   ========================================================================== */

section.contact-section {
  padding: 90px 0;
  position: relative;
}

.contact-card {
  background: radial-gradient(circle at 100% 0%, rgba(99, 102, 241, 0.15) 0%, rgba(18, 22, 38, 0.8) 70%);
  border: 1px solid var(--border-subtle);
  border-radius: 28px;
  padding: 56px 48px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  backdrop-filter: blur(20px);
}

.contact-info h3 {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
  line-height: 1.2;
}

.contact-info p {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 28px;
}

.contact-badges {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.contact-badge-item {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-main);
  font-size: 0.9rem;
}

.contact-badge-item svg {
  color: var(--accent-cyan);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-input, .form-textarea {
  background: rgba(7, 8, 13, 0.6);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 12px 16px;
  color: #fff;
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition-fast);
}

.form-input:focus, .form-textarea:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.2);
}

.btn-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
  color: #07080d;
  font-weight: 700;
  font-size: 1rem;
  padding: 14px 24px;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  transition: var(--transition-smooth);
  margin-top: 8px;
}

.btn-submit:hover {
  box-shadow: 0 0 25px rgba(0, 240, 255, 0.4);
  transform: translateY(-2px);
}

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

footer.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 60px 0 36px;
  background: #050609;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand p {
  color: var(--text-dim);
  font-size: 0.9rem;
  margin-top: 14px;
  max-width: 320px;
  line-height: 1.6;
}

.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #fff;
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col ul a {
  text-decoration: none;
  color: var(--text-dim);
  font-size: 0.85rem;
  transition: var(--transition-fast);
}

.footer-col ul a:hover {
  color: var(--text-main);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  padding-top: 28px;
  color: var(--text-dim);
  font-size: 0.8rem;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-legal-links {
  display: flex;
  gap: 20px;
}

.footer-legal-links a {
  color: var(--text-dim);
  text-decoration: none;
  transition: var(--transition-fast);
}

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

/* ==========================================================================
   Modals (Privacy, Terms, Notice)
   ========================================================================== */

.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal-backdrop.active {
  display: flex;
}

.modal-content {
  background: #0d0f18;
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  max-width: 650px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  padding: 36px;
  position: relative;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.8);
}

.modal-close-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.modal-close-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
}

.modal-body h3 {
  font-size: 1.4rem;
  margin-bottom: 16px;
}

.modal-body p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 14px;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */

@media (max-width: 1024px) {
  .ventures-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pillars-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .mobile-toggle {
    display: block;
  }
  .hero-title {
    font-size: 2.4rem;
  }
  .metrics-strip {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    padding: 20px;
  }
  .ventures-grid {
    grid-template-columns: 1fr;
  }
  .pillars-grid {
    grid-template-columns: 1fr;
  }
  .contact-card {
    grid-template-columns: 1fr;
    padding: 32px 24px;
    gap: 32px;
  }
  .footer-top {
    grid-template-columns: 1fr;
  }
}