/* ============================================
   DESIGN SYSTEM: Technical Precision + Editorial Warmth
   ============================================
   A distinctive aesthetic combining warm typography,
   engineering precision, and sophisticated color work.
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
  /* Colors - Deep charcoal meets warm teal */
  --color-dark: #0f1419;
  --color-dark-secondary: #1a2332;
  --color-dark-tertiary: #2a3544;
  --color-light: #faf9f7;
  --color-light-secondary: #f0eeea;
  --color-light-tertiary: #e5e2dc;
  --color-accent: #14b8a6;
  --color-accent-light: #5eead4;
  --color-accent-dark: #0d9488;
  --color-warm: #f59e0b;
  --color-text: #374151;
  --color-text-light: #6b7280;
  --color-text-inverse: #f3f4f6;
  --color-border: #d1d5db;
  --color-border-light: #e5e7eb;
  --color-success: #10b981;
  --color-error: #ef4444;

  /* Typography Scale */
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'Source Sans 3', 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
  --text-base: clamp(1rem, 0.925rem + 0.375vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.625vw, 1.375rem);
  --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.625rem);
  --text-2xl: clamp(1.5rem, 1.25rem + 1.25vw, 2.25rem);
  --text-3xl: clamp(1.875rem, 1.5rem + 1.875vw, 3rem);
  --text-4xl: clamp(2.25rem, 1.75rem + 2.5vw, 4rem);
  --text-5xl: clamp(3rem, 2.25rem + 3.75vw, 5.5rem);

  /* Spacing Scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Layout */
  --max-width: 1280px;
  --max-width-narrow: 720px;
  --max-width-wide: 1440px;
  --nav-height: 72px;

  /* Borders & Shadows */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --shadow-sm: 0 1px 2px rgba(15, 20, 25, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(15, 20, 25, 0.1), 0 2px 4px -1px rgba(15, 20, 25, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(15, 20, 25, 0.1), 0 4px 6px -2px rgba(15, 20, 25, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(15, 20, 25, 0.1), 0 10px 10px -5px rgba(15, 20, 25, 0.04);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-light);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

input, button, textarea, select {
  font: inherit;
}

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

ul, ol {
  list-style: none;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-dark);
  letter-spacing: -0.02em;
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

p {
  margin-bottom: var(--space-4);
}

.text-mono {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

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

.text-light {
  color: var(--color-text-light);
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* --- Layout Utilities --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.container-narrow {
  max-width: var(--max-width-narrow);
}

.container-wide {
  max-width: var(--max-width-wide);
}

.section {
  padding: var(--space-20) 0;
}

.section-lg {
  padding: var(--space-32) 0;
}

.grid {
  display: grid;
  gap: var(--space-8);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
}

.flex {
  display: flex;
}

.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: rgba(250, 249, 247, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border-light);
  z-index: 1000;
  transition: background var(--transition-base);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.nav-logo {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-dark);
  letter-spacing: -0.03em;
}

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

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

.nav-link {
  position: relative;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition-base);
}

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

.nav-link:hover::after {
  width: 100%;
}

.nav-cta {
  margin-left: var(--space-4);
}

/* Mobile Nav Toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 28px;
  height: 28px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-dark);
  transition: all var(--transition-fast);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

@media (max-width: 900px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--color-light);
    border-bottom: 1px solid var(--color-border-light);
    padding: var(--space-4);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
  }

  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-link {
    padding: var(--space-4);
    border-bottom: 1px solid var(--color-border-light);
  }

  .nav-link::after {
    display: none;
  }

  .nav-cta {
    margin: var(--space-4) 0 0;
  }

  .nav-cta .btn {
    width: 100%;
    justify-content: center;
  }
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.01em;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn-primary {
  background: var(--color-accent);
  color: white;
  border-color: var(--color-accent);
}

.btn-primary:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: transparent;
  color: var(--color-dark);
  border-color: var(--color-dark);
}

.btn-secondary:hover {
  background: var(--color-dark);
  color: var(--color-light);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.btn-outline:hover {
  background: var(--color-accent);
  color: white;
}

.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border-color: transparent;
  padding: var(--space-2) var(--space-4);
}

.btn-ghost:hover {
  color: var(--color-accent);
  background: var(--color-light-secondary);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
}

.btn-icon {
  width: 20px;
  height: 20px;
}

/* --- Cards --- */
.card {
  background: white;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  padding: var(--space-8);
  transition: all var(--transition-base);
}

.card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.card-flat {
  background: var(--color-light-secondary);
  border: none;
}

.card-flat:hover {
  background: var(--color-light-tertiary);
  transform: none;
  box-shadow: none;
}

.card-dark {
  background: var(--color-dark-secondary);
  border-color: var(--color-dark-tertiary);
  color: var(--color-text-inverse);
}

.card-dark h3, .card-dark h4, .card-dark h5 {
  color: var(--color-light);
}

/* --- Hero Section --- */
.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-height);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, var(--color-light) 0%, var(--color-light-secondary) 100%);
  z-index: -2;
}

.hero-pattern {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 1px 1px, var(--color-border) 1px, transparent 0);
  background-size: 40px 40px;
  opacity: 0.5;
  z-index: -1;
}

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

.hero-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: var(--space-6);
  padding: var(--space-2) var(--space-4);
  background: rgba(20, 184, 166, 0.1);
  border-radius: var(--radius-sm);
}

.hero-title {
  margin-bottom: var(--space-6);
  animation: fadeSlideUp 0.8s ease forwards;
}

.hero-title em {
  font-style: normal;
  position: relative;
  display: inline-block;
}

.hero-title em::after {
  content: '';
  position: absolute;
  bottom: 8px;
  left: 0;
  right: 0;
  height: 12px;
  background: var(--color-accent);
  opacity: 0.3;
  z-index: -1;
  transform: skewX(-6deg);
}

.hero-subtitle {
  font-size: var(--text-xl);
  color: var(--color-text-light);
  margin-bottom: var(--space-10);
  max-width: 640px;
  animation: fadeSlideUp 0.8s ease 0.1s forwards;
  opacity: 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  animation: fadeSlideUp 0.8s ease 0.2s forwards;
  opacity: 0;
}

/* --- Service Cards --- */
.service-card {
  position: relative;
  padding: var(--space-8);
  background: white;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--color-accent);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.service-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-lg);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: var(--color-light-secondary);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-6);
  color: var(--color-accent);
}

.service-card h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-3);
}

.service-card p {
  color: var(--color-text-light);
  margin-bottom: var(--space-6);
}

.service-list {
  margin-bottom: var(--space-6);
}

.service-list li {
  position: relative;
  padding-left: var(--space-6);
  margin-bottom: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text);
}

.service-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
}

/* --- Process Steps --- */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-1);
  counter-reset: process;
}

@media (max-width: 900px) {
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .process-grid {
    grid-template-columns: 1fr;
  }
}

.process-step {
  position: relative;
  padding: var(--space-8);
  background: var(--color-dark-secondary);
  color: var(--color-text-inverse);
  counter-increment: process;
}

.process-step:first-child {
  border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}

.process-step:last-child {
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
}

@media (max-width: 900px) {
  .process-step:first-child {
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  }
  .process-step:nth-child(2) {
    border-radius: 0 var(--radius-lg) 0 0;
  }
  .process-step:nth-child(3) {
    border-radius: 0 0 0 var(--radius-lg);
  }
  .process-step:last-child {
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  }
}

@media (max-width: 600px) {
  .process-step:first-child {
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  }
  .process-step:nth-child(2),
  .process-step:nth-child(3) {
    border-radius: 0;
  }
  .process-step:last-child {
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  }
}

.process-number {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}

.process-number::before {
  content: '0' counter(process);
}

.process-step h4 {
  color: var(--color-light);
  font-size: var(--text-lg);
  margin-bottom: var(--space-3);
}

.process-step p {
  font-size: var(--text-sm);
  color: var(--color-text-light);
  margin: 0;
}

/* --- Stats/Metrics --- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
  text-align: center;
}

@media (max-width: 640px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
}

.stat-item {
  padding: var(--space-8);
}

.stat-number {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: var(--space-2);
}

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

/* --- Case Study Cards --- */
.case-card {
  display: flex;
  flex-direction: column;
  background: white;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
}

.case-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.case-card-image {
  height: 200px;
  background: var(--color-dark-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-8);
}

.case-card-image svg {
  width: 80px;
  height: 80px;
  color: var(--color-accent);
  opacity: 0.5;
}

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

.case-card-tag {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-3);
}

.case-card h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-3);
}

.case-card p {
  font-size: var(--text-sm);
  color: var(--color-text-light);
  flex: 1;
}

.case-card-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-accent);
  margin-top: var(--space-4);
}

.case-card-link svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-fast);
}

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

/* --- FAQ Accordion --- */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-border-light);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-6) 0;
  background: none;
  border: none;
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-dark);
  text-align: left;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.faq-question:hover {
  color: var(--color-accent);
}

.faq-icon {
  width: 24px;
  height: 24px;
  color: var(--color-accent);
  transition: transform var(--transition-fast);
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

.faq-answer-inner {
  padding-bottom: var(--space-6);
  color: var(--color-text-light);
}

/* --- Forms --- */
.form-group {
  margin-bottom: var(--space-6);
}

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

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--space-4);
  font-size: var(--text-base);
  color: var(--color-text);
  background: white;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 4px rgba(20, 184, 166, 0.1);
}

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

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  cursor: pointer;
}

.form-checkbox input {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  accent-color: var(--color-accent);
}

.form-checkbox span {
  font-size: var(--text-sm);
  color: var(--color-text-light);
}

.form-error {
  font-size: var(--text-sm);
  color: var(--color-error);
  margin-top: var(--space-2);
}

.form-success {
  padding: var(--space-6);
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid var(--color-success);
  border-radius: var(--radius-md);
  color: var(--color-success);
  text-align: center;
}

/* Honeypot field - hidden from real users */
.form-hp {
  position: absolute;
  left: -9999px;
  opacity: 0;
}

/* --- Footer --- */
.footer {
  background: var(--color-dark);
  color: var(--color-text-inverse);
  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);
}

@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 600px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-brand p {
  color: var(--color-text-light);
  margin-top: var(--space-4);
  margin-bottom: var(--space-4);
  max-width: 320px;
}

.footer-location {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-accent);
}

.footer h5 {
  color: var(--color-light);
  font-size: var(--text-base);
  margin-bottom: var(--space-4);
}

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

.footer-links a {
  font-size: var(--text-sm);
  color: var(--color-text-light);
  transition: color var(--transition-fast);
}

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

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

.footer-bottom p {
  font-size: var(--text-sm);
  color: var(--color-text-light);
  margin: 0;
}

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

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--color-dark-secondary);
  border-radius: var(--radius-md);
  color: var(--color-text-light);
  transition: all var(--transition-fast);
}

.footer-social a:hover {
  background: var(--color-accent);
  color: white;
}

.footer-social svg {
  width: 20px;
  height: 20px;
}

/* --- CTA Banner --- */
.cta-banner {
  background: var(--color-dark);
  padding: var(--space-16) 0;
  text-align: center;
}

.cta-banner h2 {
  color: var(--color-light);
  margin-bottom: var(--space-4);
}

.cta-banner p {
  color: var(--color-text-light);
  max-width: 560px;
  margin: 0 auto var(--space-8);
}

.cta-banner .hero-actions {
  justify-content: center;
  opacity: 1;
}

/* --- Article/Blog Styles --- */
.article-header {
  padding: var(--space-20) 0 var(--space-12);
  padding-top: calc(var(--nav-height) + var(--space-20));
  background: var(--color-light-secondary);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.article-tag {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.article-date {
  font-size: var(--text-sm);
  color: var(--color-text-light);
}

.article-title {
  margin-bottom: var(--space-6);
}

.article-excerpt {
  font-size: var(--text-lg);
  color: var(--color-text-light);
  max-width: 720px;
}

.article-content {
  padding: var(--space-12) 0;
}

.article-body {
  max-width: var(--max-width-narrow);
  margin: 0 auto;
}

.article-body h2 {
  margin-top: var(--space-12);
  margin-bottom: var(--space-6);
  font-size: var(--text-2xl);
}

.article-body h3 {
  margin-top: var(--space-8);
  margin-bottom: var(--space-4);
  font-size: var(--text-xl);
}

.article-body p {
  margin-bottom: var(--space-6);
}

.article-body ul, .article-body ol {
  margin-bottom: var(--space-6);
  padding-left: var(--space-6);
}

.article-body li {
  margin-bottom: var(--space-2);
  position: relative;
}

.article-body ul li::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--space-6));
  top: 10px;
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
}

.article-body ol {
  list-style: decimal;
}

.article-body a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.article-body a:hover {
  color: var(--color-accent-dark);
}

.article-body code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--color-light-secondary);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
}

.article-body pre {
  background: var(--color-dark);
  color: var(--color-light);
  padding: var(--space-6);
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin-bottom: var(--space-6);
}

.article-body pre code {
  background: none;
  padding: 0;
}

.article-body blockquote {
  border-left: 4px solid var(--color-accent);
  padding-left: var(--space-6);
  margin: var(--space-8) 0;
  font-style: italic;
  color: var(--color-text-light);
}

/* Table of Contents */
.toc {
  background: var(--color-light-secondary);
  padding: var(--space-6);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-8);
}

.toc h4 {
  font-size: var(--text-base);
  margin-bottom: var(--space-4);
}

.toc ul {
  padding-left: 0;
}

.toc li {
  margin-bottom: var(--space-2);
}

.toc li::before {
  display: none;
}

.toc a {
  font-size: var(--text-sm);
  color: var(--color-text);
  text-decoration: none;
}

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

/* Resource Cards */
.resource-card {
  display: block;
  padding: var(--space-6);
  background: white;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.resource-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
}

.resource-card-tag {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-2);
}

.resource-card h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-2);
  transition: color var(--transition-fast);
}

.resource-card:hover h3 {
  color: var(--color-accent);
}

.resource-card p {
  font-size: var(--text-sm);
  color: var(--color-text-light);
  margin: 0;
}

/* --- Page Headers --- */
.page-header {
  padding: var(--space-20) 0;
  padding-top: calc(var(--nav-height) + var(--space-20));
  background: var(--color-light-secondary);
  text-align: center;
}

.page-header-left {
  text-align: left;
}

.page-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-4);
}

.page-header h1 {
  margin-bottom: var(--space-4);
}

.page-header p {
  font-size: var(--text-lg);
  color: var(--color-text-light);
  max-width: 640px;
  margin: 0 auto;
}

.page-header-left p {
  margin: 0;
}

/* --- Breadcrumbs --- */
.breadcrumbs {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  margin-bottom: var(--space-6);
}

.breadcrumbs a {
  color: var(--color-text-light);
  transition: color var(--transition-fast);
}

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

.breadcrumbs span {
  color: var(--color-border);
}

/* --- Checklist --- */
.checklist {
  background: var(--color-light-secondary);
  padding: var(--space-6);
  border-radius: var(--radius-md);
}

.checklist h4 {
  font-size: var(--text-base);
  margin-bottom: var(--space-4);
}

.checklist li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
  font-size: var(--text-sm);
}

.checklist li::before {
  content: '';
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  margin-top: 2px;
}

/* --- Pricing/Packages --- */
.package-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

@media (max-width: 900px) {
  .package-grid {
    grid-template-columns: 1fr;
  }
}

.package-card {
  background: white;
  border: 2px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  text-align: center;
  transition: all var(--transition-base);
}

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

.package-card.featured {
  border-color: var(--color-accent);
  position: relative;
}

.package-card.featured::before {
  content: 'Most Popular';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-accent);
  color: white;
  font-size: var(--text-xs);
  font-weight: 600;
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-sm);
}

.package-name {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-2);
}

.package-card h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-3);
}

.package-price {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: var(--space-6);
}

.package-price span {
  font-size: var(--text-sm);
  font-weight: 400;
  color: var(--color-text-light);
}

.package-features {
  text-align: left;
  margin-bottom: var(--space-6);
}

.package-features li {
  position: relative;
  padding-left: var(--space-6);
  margin-bottom: var(--space-3);
  font-size: var(--text-sm);
}

.package-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  width: 16px;
  height: 16px;
  background: var(--color-accent);
  border-radius: 50%;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3E%3Cpath d='M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z'/%3E%3C/svg%3E");
  background-size: 10px;
  background-repeat: no-repeat;
  background-position: center;
}

/* --- Animations --- */
@keyframes fadeSlideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.animate-fade-up {
  animation: fadeSlideUp 0.6s ease forwards;
}

.animate-delay-1 { animation-delay: 0.1s; }
.animate-delay-2 { animation-delay: 0.2s; }
.animate-delay-3 { animation-delay: 0.3s; }
.animate-delay-4 { animation-delay: 0.4s; }

/* --- Utility Classes --- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mt-4 { margin-top: var(--space-4); }
.mb-4 { margin-bottom: var(--space-4); }
.mt-8 { margin-top: var(--space-8); }
.mb-8 { margin-bottom: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }
.mb-12 { margin-bottom: var(--space-12); }

.pt-0 { padding-top: 0; }
.pb-0 { padding-bottom: 0; }

.hidden { display: none; }

@media (max-width: 640px) {
  .hide-mobile { display: none; }
}