/* CSS Reset & Variables */
:root {
  --bg-dark: #0a0e17;
  --bg-card: #121824;
  --bg-card-hover: #1a2234;
  --bg-nav: rgba(10, 14, 23, 0.85);
  
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  --accent-cyan: #06b6d4;
  --accent-cyan-glow: rgba(6, 182, 212, 0.25);
  --accent-blue: #3b82f6;
  --accent-teal: #14b8a6;
  
  --color-success: #10b981;
  --color-danger: #ef4444;
  --color-warning: #f59e0b;
  
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-highlight: rgba(6, 182, 212, 0.3);
  
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
}

body {
  overflow-x: hidden;
  min-height: 100vh;
}

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

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

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

.text-accent { color: var(--accent-cyan); }
.text-success { color: var(--color-success); }
.text-danger { color: var(--color-danger); }

.gradient-text {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: var(--bg-nav);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  height: 72px;
  display: flex;
  align-items: center;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.nav-logo {
  display: flex;
  flex-direction: column;
}

.logo-text {
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}

.logo-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent-cyan);
}

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

.nav-links a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: var(--transition);
}

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

.nav-cta {
  padding: 0.5rem 1.2rem;
  font-size: 0.88rem;
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
}

.mobile-menu-toggle span {
  width: 24px;
  height: 2px;
  background-color: var(--text-main);
  transition: var(--transition);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 1.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
}

.btn-primary {
  background-color: var(--accent-cyan);
  color: #000;
  box-shadow: 0 0 20px var(--accent-cyan-glow);
}

.btn-primary:hover {
  background-color: #22d3ee;
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: var(--bg-card);
  color: var(--text-main);
  border-color: var(--border-subtle);
}

.btn-secondary:hover {
  background-color: var(--bg-card-hover);
  border-color: var(--border-highlight);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--text-muted);
  border-color: var(--border-subtle);
}

.btn-outline:hover {
  color: var(--text-main);
  border-color: var(--text-muted);
}

.btn-sm {
  padding: 0.4rem 0.9rem;
  font-size: 0.82rem;
}

.btn-accent {
  background-color: var(--accent-cyan);
  color: #000;
}

.btn-accent:hover {
  background-color: #22d3ee;
}

/* Hero Section */
.hero {
  position: relative;
  padding: 160px 0 80px;
  min-height: 90vh;
  display: flex;
  align-items: center;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(circle at 50% 30%, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(circle at 50% 30%, black 30%, transparent 80%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 10;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 1rem;
  background-color: rgba(6, 182, 212, 0.1);
  border: 1px solid var(--border-highlight);
  border-radius: 50px;
  font-size: 0.85rem;
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  margin-bottom: 1.5rem;
}

.status-dot {
  width: 8px;
  height: 8px;
  background-color: var(--color-success);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--color-success);
}

.hero-title {
  font-size: clamp(2.4rem, 5vw, 4.2rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
  max-width: 900px;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-muted);
  max-width: 800px;
  margin-bottom: 2rem;
  font-weight: 400;
}

/* Privacy Note Box */
.privacy-note {
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
  padding: 1rem 1.2rem;
  background-color: rgba(18, 24, 36, 0.9);
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--accent-cyan);
  border-radius: var(--radius-sm);
  max-width: 780px;
  margin-bottom: 2.5rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.privacy-note strong {
  color: var(--text-main);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 3.5rem;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-subtle);
  max-width: 800px;
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-num {
  font-size: 1.8rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--text-main);
}

.stat-label {
  font-size: 0.82rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background-color: var(--border-subtle);
}

/* Section Shared */
.section {
  padding: 100px 0;
  position: relative;
}

.section-header {
  margin-bottom: 3.5rem;
  max-width: 700px;
}

.section-kicker {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-cyan);
  display: block;
  margin-bottom: 0.5rem;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.8rem;
}

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

/* Cards Grid (War Stories) */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.8rem;
}

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 2rem;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--border-highlight);
  background-color: var(--bg-card-hover);
}

.highlight-card {
  border-color: rgba(6, 182, 212, 0.4);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.2rem;
}

.card-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  font-weight: 600;
}

.tag-accent {
  background-color: rgba(6, 182, 212, 0.15);
  color: var(--accent-cyan);
}

.tag-brand {
  background-color: rgba(59, 130, 246, 0.15);
  color: var(--accent-blue);
}

.tag-warning {
  background-color: rgba(245, 158, 11, 0.15);
  color: var(--color-warning);
}

.card-date {
  font-size: 0.8rem;
  color: var(--text-dim);
}

.card-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 1rem;
  line-height: 1.3;
}

.card-body {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

.card-points {
  margin-top: auto;
  padding-left: 1.2rem;
  color: var(--text-dim);
  font-size: 0.88rem;
}

.card-points li {
  list-style-type: disc;
  margin-bottom: 0.4rem;
}

/* Quant Section & Simulator */
.quant-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
}

.quant-info {
  display: flex;
  flex-direction: column;
  gap: 1.8rem;
}

.info-block h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--accent-cyan);
}

.info-block p {
  color: var(--text-muted);
  font-size: 0.98rem;
}

.info-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.tech-pill {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 0.3rem 0.7rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 50px;
  color: var(--text-muted);
}

/* Demo Simulator Card */
.quant-demo-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-highlight);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}

.demo-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-subtle);
}

.demo-badge {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--accent-cyan);
  letter-spacing: 0.08em;
  display: block;
}

.demo-title h4 {
  font-size: 1rem;
  font-weight: 700;
}

.email-mockup {
  background-color: #0b0f19;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  overflow: hidden;
  font-size: 0.88rem;
}

.email-header-bar {
  background-color: rgba(255, 255, 255, 0.03);
  padding: 0.8rem 1rem;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
}

.email-meta div {
  margin-bottom: 0.2rem;
}

.email-time {
  font-size: 0.75rem;
  color: var(--text-dim);
}

.email-body {
  padding: 1.2rem;
}

.email-body p {
  margin-bottom: 0.8rem;
  color: var(--text-muted);
}

.trade-summary-box {
  background-color: rgba(255, 255, 255, 0.02);
  border: 1px dashed var(--border-highlight);
  border-radius: var(--radius-sm);
  padding: 0.8rem 1rem;
  margin: 1rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.trade-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
}

.agent-actions {
  display: flex;
  gap: 0.6rem;
  margin-top: 1rem;
}

.btn-success-action {
  background-color: var(--color-success);
  color: #000;
  border: none;
  font-weight: 700;
}

.btn-danger-action {
  background-color: var(--color-danger);
  color: #fff;
  border: none;
  font-weight: 700;
}

.btn-outline-action {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border-subtle);
}

.agent-status-msg {
  margin-top: 0.8rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 0.4rem 0.6rem;
  border-radius: 4px;
  display: none;
}

/* Skills Grid */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.skill-category {
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}

.category-title {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--accent-cyan);
  margin-bottom: 1.2rem;
}

.category-title h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
}

.skill-list li {
  padding: 0.4rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
  font-size: 0.92rem;
  color: var(--text-muted);
}

.skill-list li:last-child {
  border-bottom: none;
}

/* Client Brand Wall & Experience Timeline */
.client-brand-wall {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-bottom: 3.5rem;
  padding: 1.5rem;
  background-color: rgba(18, 24, 36, 0.5);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  justify-content: center;
}

.brand-item {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  padding: 0.4rem 0.9rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
}

.timeline {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  position: relative;
  padding-left: 1.5rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 6px;
  top: 0;
  bottom: 0;
  width: 2px;
  background-color: var(--border-subtle);
}

.timeline-item {
  position: relative;
}

.timeline-marker {
  position: absolute;
  left: -1.5rem;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background-color: var(--bg-dark);
  border: 2px solid var(--accent-cyan);
}

.timeline-content {
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.3rem;
}

.timeline-header h3 {
  font-size: 1.15rem;
  font-weight: 700;
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--accent-cyan);
}

.timeline-sub {
  color: var(--text-dim);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.timeline-bullet-list {
  padding-left: 1.2rem;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.timeline-bullet-list li {
  list-style-type: disc;
  margin-bottom: 0.5rem;
}

/* Contact Section */
.contact-card {
  background: linear-gradient(135deg, var(--bg-card) 0%, #151d2f 100%);
  border: 1px solid var(--border-highlight);
  border-radius: var(--radius-lg);
  padding: 3.5rem 2.5rem;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
  max-width: 900px;
  margin: 0 auto;
}

.contact-title {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

.contact-desc {
  color: var(--text-muted);
  font-size: 1.1rem;
  margin-bottom: 2rem;
  max-width: 700px;
}

.contact-details {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.contact-method {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--text-main);
  transition: var(--transition);
}

.contact-method:hover {
  color: var(--accent-cyan);
}

.contact-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.card-footer {
  margin-top: 1.2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-subtle);
}

.card-expand-btn {
  width: 100%;
  text-align: center;
  font-size: 0.82rem;
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  border-color: rgba(6, 182, 212, 0.3);
}

.card-expand-btn:hover {
  background-color: rgba(6, 182, 212, 0.1);
  border-color: var(--accent-cyan);
}

/* Modal Drawer Overlay */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background-color: rgba(10, 14, 23, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  justify-content: flex-end;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-container {
  width: 100%;
  max-width: 680px;
  height: 100%;
  background-color: var(--bg-card);
  border-left: 1px solid var(--border-highlight);
  box-shadow: -10px 0 50px rgba(0, 0, 0, 0.6);
  padding: 3rem 2.5rem;
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  display: flex;
  flex-direction: column;
}

.modal-overlay.active .modal-container {
  transform: translateX(0);
}

.modal-close-btn {
  position: absolute;
  top: 1.5rem;
  right: 1.8rem;
  background: none;
  border: none;
  font-size: 2rem;
  color: var(--text-muted);
  cursor: pointer;
  line-height: 1;
  transition: var(--transition);
}

.modal-close-btn:hover {
  color: var(--text-main);
  transform: scale(1.1);
}

.modal-header {
  margin-bottom: 2rem;
}

.modal-header h2 {
  font-size: 1.8rem;
  font-weight: 800;
  margin: 0.6rem 0 0.4rem;
  letter-spacing: -0.02em;
}

.modal-subtitle {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--accent-cyan);
}

.modal-body {
  color: var(--text-muted);
  font-size: 1.02rem;
  line-height: 1.7;
  flex-grow: 1;
}

.modal-body p {
  margin-bottom: 1.2rem;
}

.modal-body h4 {
  color: var(--text-main);
  font-size: 1.15rem;
  font-weight: 700;
  margin: 1.8rem 0 0.6rem;
}

.modal-body ul {
  padding-left: 1.4rem;
  margin-bottom: 1.4rem;
}

.modal-body li {
  list-style-type: disc;
  margin-bottom: 0.5rem;
}

.modal-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-subtle);
}

/* Footer */
.footer {
  padding: 2rem 0;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.88rem;
  color: var(--text-dim);
}

.footer-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Responsive Media Queries */
@media (max-width: 900px) {
  .quant-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    background-color: var(--bg-dark);
    flex-direction: column;
    padding: 2rem;
    border-bottom: 1px solid var(--border-subtle);
  }

  .nav-links.active {
    display: flex;
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .hero-stats {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .stat-divider {
    display: none;
  }

  .contact-card {
    padding: 2rem 1.5rem;
  }
}