/* ========================================
   Vektor Quant - Global Styles
   Quantitative Investment & Risk Management
   Premium Financial Institution Design
   ======================================== */

/* CSS Variables */
:root {
  /* Primary Colors - Sophisticated Dark Theme */
  --bg-primary: #0c0c0c;
  --bg-secondary: #141414;
  --bg-tertiary: #1a1a1a;
  --bg-card: #111111;

  /* Accent Colors - Gold & Warm Neutrals */
  --primary: #c9a962;
  --primary-light: #d4bc7b;
  --primary-dark: #b8944d;
  --accent: #e8dcc4;
  --accent-light: #f5efe5;

  /* Text Colors */
  --text-primary: #ffffff;
  --text-secondary: #a3a3a3;
  --text-muted: #737373;

  /* Borders & Dividers */
  --border-color: #262626;
  --border-light: #1f1f1f;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #c9a962 0%, #b8944d 100%);
  --gradient-subtle: linear-gradient(180deg, rgba(201, 169, 98, 0.1) 0%, transparent 100%);
  --gradient-dark: linear-gradient(180deg, #0c0c0c 0%, #141414 100%);

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.6);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.7);
  --shadow-glow: 0 0 60px rgba(201, 169, 98, 0.08);

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Spacing */
  --container-max: 1200px;
  --section-padding: 120px;
  --card-radius: 2px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  letter-spacing: 0.01em;
}

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

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

ul, ol {
  list-style: none;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 400;
  line-height: 1.3;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 300;
}

h2 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 300;
}

h3 {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  font-weight: 400;
}

h4 {
  font-size: 1.125rem;
  font-weight: 500;
}

p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.text-gradient {
  color: var(--primary);
}

/* ========================================
   Header & Navigation
   ======================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(12, 12, 12, 0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-light);
  transition: all var(--transition-base);
}

.header.scrolled {
  background: rgba(12, 12, 12, 0.98);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 1.125rem;
  font-weight: 400;
  color: var(--text-primary);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.logo img {
  height: 32px;
  width: auto;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: transparent;
  border: 1px solid var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 500;
  font-size: 0.75rem;
  color: var(--primary);
  letter-spacing: 0.1em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 48px;
}

.nav-links a {
  font-size: 0.8125rem;
  font-weight: 400;
  color: var(--text-muted);
  transition: color var(--transition-fast);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

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

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

/* Mobile Menu */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-menu-btn span {
  width: 20px;
  height: 1px;
  background: var(--text-primary);
  transition: all var(--transition-base);
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  background: var(--bg-secondary);
  padding: 32px 24px;
  border-bottom: 1px solid var(--border-color);
}

.mobile-menu.active {
  display: block;
}

.mobile-menu a {
  display: block;
  padding: 16px 0;
  font-size: 0.875rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-light);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.mobile-menu a:hover {
  color: var(--primary);
}

/* ========================================
   Buttons
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 0.75rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-base);
  border: none;
  white-space: nowrap;
  text-transform: uppercase;
  letter-spacing: 0.15em;
}

.btn-primary {
  background: var(--primary);
  color: #0c0c0c;
}

.btn-primary:hover {
  background: var(--primary-light);
}

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

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

.btn-ghost {
  background: transparent;
  color: var(--primary);
  padding: 8px 0;
  letter-spacing: 0.1em;
}

.btn-ghost:hover {
  color: var(--primary-light);
}

.btn-ghost .arrow {
  transition: transform var(--transition-base);
}

.btn-ghost:hover .arrow {
  transform: translateX(4px);
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 72px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(201, 169, 98, 0.03) 0%, transparent 60%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 0;
  font-size: 0.75rem;
  color: var(--primary);
  margin-bottom: 32px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
}

.hero h1 {
  margin-bottom: 28px;
  font-weight: 300;
}

.hero-description {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: 48px;
  max-width: 600px;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  margin-bottom: 80px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 48px;
  padding-top: 48px;
  border-top: 1px solid var(--border-light);
}

.stat-item {
  text-align: left;
}

.stat-value {
  font-size: 2.5rem;
  font-weight: 300;
  color: var(--text-primary);
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

.stat-value .accent {
  color: var(--primary);
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.15em;
}

/* ========================================
   Sections Common
   ======================================== */
.section {
  padding: var(--section-padding) 0;
  position: relative;
}

.section-header {
  max-width: 600px;
  margin-bottom: 64px;
}

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

.section-label {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  margin-bottom: 20px;
}

.section-title {
  margin-bottom: 20px;
}

.section-description {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ========================================
   Cards
   ======================================== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  padding: 40px;
  transition: all var(--transition-base);
}

.card:hover {
  border-color: var(--border-color);
}

.card-icon {
  width: 48px;
  height: 48px;
  border: 1px solid var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 28px;
  font-size: 1.25rem;
}

.icon {
  width: 22px;
  height: 22px;
  color: var(--primary);
  stroke: var(--primary);
  fill: none;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.contact-item-icon .icon {
  width: 20px;
  height: 20px;
}

.card-title {
  font-size: 1.125rem;
  font-weight: 400;
  margin-bottom: 16px;
  letter-spacing: 0;
}

.card-description {
  color: var(--text-secondary);
  margin-bottom: 24px;
  font-size: 0.9375rem;
  line-height: 1.7;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.card-link:hover {
  color: var(--primary-light);
}

.card-link .arrow {
  transition: transform var(--transition-base);
}

.card-link:hover .arrow {
  transform: translateX(4px);
}

/* Cards Grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border-light);
}

.cards-grid .card {
  background: var(--bg-primary);
}

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

/* ========================================
   Features Section
   ======================================== */
.features {
  background: var(--bg-secondary);
}

.feature-card {
  text-align: left;
  padding: 48px 40px;
}

/* ========================================
   About Preview
   ======================================== */
.about-content-full {
  max-width: 800px;
}

.about-content h2 {
  margin-bottom: 28px;
}

.about-content p {
  font-size: 1rem;
  margin-bottom: 28px;
  line-height: 1.8;
}

.about-list {
  margin-bottom: 40px;
}

.about-list li {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 0;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-light);
  font-size: 0.9375rem;
}

.about-list li::before {
  content: '—';
  color: var(--primary);
}

/* ========================================
   CTA Section
   ======================================== */
.cta-section {
  background: var(--bg-secondary);
  text-align: center;
  padding: 100px 0;
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.cta-section h2 {
  margin-bottom: 20px;
  font-weight: 300;
}

.cta-section p {
  font-size: 1rem;
  margin-bottom: 40px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
}

/* ========================================
   Page Hero (Subpages)
   ======================================== */
.page-hero {
  padding: 160px 0 80px;
  background: var(--bg-primary);
  position: relative;
  border-bottom: 1px solid var(--border-light);
}

.page-hero-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 32px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

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

.breadcrumb .separator {
  color: var(--text-muted);
}

.page-hero h1 {
  margin-bottom: 20px;
  font-weight: 300;
}

.page-hero-description {
  font-size: 1.125rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ========================================
   Services/Insights List
   ======================================== */
.list-card {
  display: flex;
  gap: 48px;
  padding: 48px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  transition: all var(--transition-base);
}

.list-card:hover {
  border-color: var(--border-color);
}

.list-card-number {
  font-size: 3rem;
  font-weight: 300;
  color: var(--primary);
  line-height: 1;
  min-width: 80px;
  letter-spacing: -0.02em;
}

.list-card-content h3 {
  margin-bottom: 16px;
  font-weight: 400;
}

.list-card-content p {
  margin-bottom: 20px;
  line-height: 1.8;
}

/* ========================================
   Team Grid
   ======================================== */
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border-light);
}

.team-card {
  text-align: center;
  padding: 48px 32px;
  background: var(--bg-primary);
}

.team-avatar {
  width: 100px;
  height: 100px;
  border: 1px solid var(--border-color);
  margin: 0 auto 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--text-muted);
  letter-spacing: 0.1em;
}

.team-name {
  font-size: 1rem;
  font-weight: 400;
  margin-bottom: 8px;
}

.team-role {
  color: var(--text-muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* ========================================
   Jobs List
   ======================================== */
.jobs-grid {
  display: grid;
  gap: 1px;
  background: var(--border-light);
}

.job-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 32px 40px;
  background: var(--bg-primary);
  transition: all var(--transition-base);
}

.job-card:hover {
  background: var(--bg-secondary);
}

.job-card:hover .arrow {
  color: var(--primary);
  transform: translateX(4px);
}

.job-info h3 {
  font-size: 1rem;
  font-weight: 400;
  margin-bottom: 8px;
}

.job-meta {
  display: flex;
  gap: 24px;
  color: var(--text-muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.job-card .arrow {
  color: var(--text-muted);
  transition: all var(--transition-base);
}

/* ========================================
   Contact Form
   ======================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
}

.contact-info h2 {
  margin-bottom: 24px;
  font-weight: 300;
}

.contact-info > p {
  font-size: 1rem;
  margin-bottom: 48px;
  line-height: 1.8;
}

.contact-details {
  margin-bottom: 48px;
}

.contact-item {
  display: flex;
  gap: 20px;
  margin-bottom: 32px;
}

.contact-item-icon {
  width: 48px;
  height: 48px;
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 1rem;
  flex-shrink: 0;
}

.contact-item-content h4 {
  font-size: 0.6875rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
}

.contact-item-content p {
  color: var(--text-primary);
  margin-bottom: 0;
  font-size: 0.9375rem;
}

.form-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  padding: 48px;
}

.form-group {
  margin-bottom: 28px;
}

.form-label {
  display: block;
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
}

.form-label .required {
  color: var(--primary);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 16px 0;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
  font-size: 0.9375rem;
  font-family: inherit;
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-muted);
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

/* ========================================
   Footer
   ======================================== */
.footer {
  background: var(--bg-primary);
  padding: 80px 0 40px;
  border-top: 1px solid var(--border-light);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 64px;
  margin-bottom: 64px;
}

.footer-brand {
  max-width: 280px;
}

.footer-brand .logo {
  margin-bottom: 24px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.875rem;
  line-height: 1.7;
}

.footer-column h4 {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  margin-bottom: 24px;
  font-weight: 500;
}

.footer-column ul li {
  margin-bottom: 16px;
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.footer-column ul li a {
  color: inherit;
  transition: color var(--transition-fast);
}

.footer-column ul li a:hover {
  color: var(--text-primary);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 40px;
  border-top: 1px solid var(--border-light);
}

.footer-bottom p {
  color: var(--text-muted);
  font-size: 0.75rem;
  margin-bottom: 0;
  letter-spacing: 0.05em;
}

.footer-legal {
  display: flex;
  gap: 32px;
}

.footer-legal a {
  color: var(--text-muted);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

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

/* ========================================
   Legal Pages
   ======================================== */
.legal-content {
  max-width: 720px;
  margin: 0 auto;
  padding: 80px 24px;
}

.legal-content h1 {
  margin-bottom: 8px;
}

.legal-content .last-updated {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: 48px;
}

.legal-content h2 {
  font-size: 1.25rem;
  font-weight: 400;
  margin-top: 48px;
  margin-bottom: 20px;
}

.legal-content p {
  margin-bottom: 20px;
  line-height: 1.8;
}

.legal-content ul {
  margin-bottom: 20px;
  padding-left: 0;
}

.legal-content ul li {
  color: var(--text-secondary);
  margin-bottom: 12px;
  padding-left: 24px;
  position: relative;
  line-height: 1.7;
}

.legal-content ul li::before {
  content: '—';
  color: var(--primary);
  position: absolute;
  left: 0;
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 1024px) {
  .cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 48px;
  }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 80px;
  }

  .nav-links,
  .nav-cta {
    display: none;
  }

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

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .cards-grid,
  .cards-grid-2 {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 20px;
    text-align: center;
  }

  .list-card {
    flex-direction: column;
    gap: 24px;
    padding: 32px;
  }

  .list-card-number {
    font-size: 2rem;
  }

  .job-card {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    padding: 24px;
  }

  .job-meta {
    flex-wrap: wrap;
    gap: 16px;
  }
}

@media (max-width: 480px) {
  .hero-stats {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .stat-item {
    text-align: left;
    padding: 20px 0;
    border-bottom: 1px solid var(--border-light);
  }

  .cta-buttons {
    flex-direction: column;
  }
}