/* IntelliBill Dark Theme - Bloomberg Terminal meets Legal Tech */

:root {
  /* Core palette */
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-tertiary: #1a1a24;
  --bg-elevated: #22222e;

  /* Accent - Amber/Gold for revenue/money */
  --accent-primary: #f59e0b;
  --accent-secondary: #fbbf24;
  --accent-muted: rgba(245, 158, 11, 0.15);
  --accent-glow: rgba(245, 158, 11, 0.4);

  /* Success/Warning/Error */
  --success: #10b981;
  --success-muted: rgba(16, 185, 129, 0.15);
  --warning: #f59e0b;
  --error: #ef4444;
  --error-muted: rgba(239, 68, 68, 0.15);

  /* Text hierarchy */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-inverse: #0a0a0f;

  /* Borders */
  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-default: rgba(255, 255, 255, 0.1);
  --border-strong: rgba(255, 255, 255, 0.15);

  /* Spacing */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;

  /* Typography */
  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Consolas, monospace;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -4px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 20px var(--accent-glow);

  /* Border radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

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

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

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

/* ================================
   NAVIGATION
================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
}

.nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-4) var(--space-6);
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.logo svg {
  width: 36px;
  height: 36px;
  color: var(--accent-primary);
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-link {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  font-weight: 500;
  transition: color var(--transition-fast);
}

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

.nav-cta {
  display: flex;
  gap: var(--space-3);
}

/* ================================
   BUTTONS
================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
  color: var(--text-inverse);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
  color: var(--text-inverse);
}

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

.btn-secondary:hover {
  background: var(--bg-elevated);
  border-color: var(--border-strong);
  color: var(--text-primary);
}

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

.btn-ghost:hover {
  color: var(--text-primary);
  background: var(--bg-tertiary);
}

/* ================================
   HERO SECTION
================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: var(--space-16) 0;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -30%;
  width: 80%;
  height: 150%;
  background: radial-gradient(ellipse at center, var(--accent-muted) 0%, transparent 70%);
  pointer-events: none;
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--success-muted);
  color: var(--success);
  font-size: 0.8125rem;
  font-weight: 600;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-6);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: var(--space-6);
}

.hero-title span {
  color: var(--accent-primary);
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: var(--space-8);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: var(--space-8);
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: 1px solid var(--border-subtle);
}

.hero-stat {
  text-align: center;
}

.hero-stat-value {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent-primary);
  margin-bottom: var(--space-1);
}

.hero-stat-label {
  font-size: 0.8125rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ================================
   SECTIONS
================================ */
.section {
  padding: var(--space-16) 0;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-12);
}

.section-title {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: var(--space-4);
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ================================
   FEATURE CARDS
================================ */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-6);
}

.feature-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: all var(--transition-base);
}

.feature-card:hover {
  border-color: var(--accent-primary);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.feature-icon {
  width: 56px;
  height: 56px;
  background: var(--accent-muted);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
}

.feature-metric {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--success);
  background: var(--success-muted);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  margin-top: var(--space-4);
}

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-2);
  color: var(--text-primary);
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

/* ================================
   METRICS GRID
================================ */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-4);
}

.metric-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  text-align: center;
}

.metric-icon {
  width: 48px;
  height: 48px;
  background: var(--bg-tertiary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-4);
  color: var(--accent-primary);
}

.metric-value {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-1);
}

.metric-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* ================================
   STEPS GRID (How It Works)
================================ */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-8);
  counter-reset: step;
}

.step-card {
  position: relative;
}

.step-number {
  font-family: var(--font-display);
  font-size: 4rem;
  font-weight: 700;
  color: var(--bg-elevated);
  line-height: 1;
  margin-bottom: var(--space-4);
  position: relative;
  z-index: 0;
}

.step-number::after {
  content: counter(step);
  counter-increment: step;
  position: absolute;
  top: 0;
  left: 0;
  color: rgba(245, 158, 11, 0.1); /* transparent amber */
  -webkit-text-stroke: 1px var(--border-default);
}

.step-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-2);
  color: var(--text-primary);
}

.step-card p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

/* ================================
   TESTIMONIAL
================================ */
.testimonial-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-10);
  text-align: center;
  position: relative;
}

.testimonial-text {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-style: italic;
  color: var(--text-primary);
  margin-bottom: var(--space-8);
  line-height: 1.4;
}

.testimonial-author {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
}

.testimonial-avatar {
  width: 48px;
  height: 48px;
  background: var(--accent-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--text-inverse);
}

.testimonial-info {
  text-align: left;
}

.testimonial-info h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.testimonial-info p {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* ================================
   CTA SECTION
================================ */
.cta-section {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-16) var(--space-6);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-primary), transparent);
  opacity: 0.5;
}

.cta-content {
  position: relative;
  z-index: 1;
  max-width: 600px;
  margin: 0 auto;
}

.cta-title {
  font-family: var(--font-display);
  font-size: 2.5rem;
  margin-bottom: var(--space-4);
}

.cta-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-8);
}

/* ================================
   FOOTER
================================ */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  margin-top: var(--space-4);
  max-width: 300px;
}

.footer-links h4 {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-primary);
  margin-bottom: var(--space-6);
}

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

.footer-links li {
  margin-bottom: var(--space-3);
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

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

.footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding-top: var(--space-8);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-bottom p {
  color: var(--text-muted);
  font-size: 0.875rem;
}

.footer-socials {
  display: flex;
  gap: var(--space-4);
}

.footer-socials a {
  color: var(--text-secondary);
}

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

/* ================================
   ANIMATIONS
================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-in {
  opacity: 0;
  animation: fadeInUp 0.8s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

.animate-delay-1 { animation-delay: 0.1s; }
.animate-delay-2 { animation-delay: 0.2s; }
.animate-delay-3 { animation-delay: 0.3s; }

/* ================================
   RESPONSIVE
================================ */
@media (max-width: 1024px) {
  .hero-title { font-size: 3rem; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links, .nav-cta { display: none; } /* Mobile menu simplified */
  .hero { padding-top: var(--space-12); text-align: center; }
  .hero-actions, .hero-stats { justify-content: center; }
  .hero-title { font-size: 2.5rem; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* Founders Section - Compact Inline */
.founders-section {
  padding: 4rem 0;
  background: var(--bg-secondary);
}

.founders-section h2 {
  text-align: center;
  margin-bottom: 2rem;
  font-size: 1.75rem;
  color: var(--text-primary);
}

.founders-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  max-width: 900px;
  margin: 0 auto;
  padding: 0 1rem;
}

.founder-card {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: 1rem;
  background: var(--bg-tertiary);
  border-radius: 12px;
  padding: 1.25rem;
  border: 1px solid var(--border-subtle);
  transition: all 0.2s ease;
}

.founder-card:hover {
  border-color: var(--accent-primary);
  background: var(--bg-elevated);
}

.founder-image {
  flex-shrink: 0;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid var(--accent-primary);
  box-shadow: 0 0 15px rgba(245, 158, 11, 0.2);
}

.founder-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

.founder-content {
  flex: 1;
  min-width: 0;
}

.founder-content h3 {
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 2px 0;
  color: var(--text-primary);
}

.founder-title {
  font-size: 0.8rem;
  color: var(--accent-primary);
  margin: 0 0 0.5rem 0;
  font-weight: 500;
}

.founder-bio {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.45;
  margin: 0;
}

.founder-bio a {
  color: var(--accent-primary);
  text-decoration: none;
}

.founder-bio a:hover {
  text-decoration: underline;
}

@media (max-width: 768px) {
  .founders-grid {
    grid-template-columns: 1fr;
  }
}

/* Bloomberg Style Form Elements */
.form-group {
  margin-bottom: var(--space-6);
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--space-2);
}

.form-input {
  width: 100%;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: all var(--transition-fast);
}

.form-input:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 2px var(--accent-glow);
  background: var(--bg-elevated);
}

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

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

.form-feedback {
  padding: var(--space-4);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-6);
  font-size: 0.9375rem;
  font-weight: 500;
}

.form-feedback.success {
  background: var(--success-muted);
  color: var(--success);
  border: 1px solid var(--success);
  display: block;
}

.form-feedback.error {
  background: var(--error-muted);
  color: var(--error);
  border: 1px solid var(--error);
  display: block;
}

/* Blog Styles */
.blog-hero {
  background: var(--bg-secondary);
  padding: var(--space-16) 0 var(--space-8);
  text-align: center;
  border-bottom: 1px solid var(--border-subtle);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-8);
  margin-top: var(--space-12);
}

.blog-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
}

.blog-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-primary);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.blog-card-content {
  padding: var(--space-6);
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.blog-card h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin-bottom: var(--space-4);
  color: var(--text-primary);
}

.blog-card p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  margin-bottom: var(--space-6);
  line-height: 1.6;
}

.tag-badge {
  background: var(--accent-muted);
  color: var(--accent-primary);
  padding: 4px 12px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: all var(--transition-fast);
  display: inline-block;
  margin: 0 4px 8px 0;
}

.tag-badge:hover {
  background: var(--accent-primary);
  color: var(--text-inverse);
}

.blog-post {
  max-width: 800px;
  margin: var(--space-16) auto;
  padding: 0 var(--space-6);
}

.blog-post h1 {
  font-family: var(--font-display);
  font-size: 3rem;
  margin-bottom: var(--space-4);
  line-height: 1.1;
  color: var(--text-primary);
}

.blog-post section {
  font-size: 1.125rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

.blog-post section h2 {
  margin-top: var(--space-12);
  color: var(--text-primary);
  font-family: var(--font-display);
}

.blog-post section p {
  margin-bottom: var(--space-6);
}