/* ============================================
   DataWand — Design System & Global Styles
   ============================================ */

/* --- CSS Custom Properties (Design Tokens) --- */
:root {
  /* Purple palette */
  --purple-50: #faf5ff;
  --purple-100: #f3e8ff;
  --purple-200: #e9d5ff;
  --purple-300: #d8b4fe;
  --purple-400: #c084fc;
  --purple-500: #a855f7;
  --purple-600: #9333ea;
  --purple-700: #7c3aed;
  --purple-800: #6b21a8;
  --purple-900: #581c87;
  --glow: rgba(168, 85, 247, 0.3);
  --glow-strong: rgba(168, 85, 247, 0.45);

  /* Status */
  --success: #22c55e;
  --warning: #f59e0b;
  --error: #ef4444;
  --info: #6366f1;

  /* Light theme (default) */
  --text-primary: #111111;
  --text-secondary: #666666;
  --text-tertiary: #999999;
  --border: #e5e5e5;
  --border-light: #f0f0f0;
  --bg: #ffffff;
  --bg-alt: #fafafa;
  --nav-bg: rgba(255, 255, 255, 0.85);

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.1);
  --shadow-glow: 0 4px 14px rgba(168, 85, 247, 0.25);
  --shadow-glow-strong: 0 6px 20px rgba(168, 85, 247, 0.35);

  /* Spacing */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-6: 24px;
  --space-8: 32px;
  --space-12: 48px;
  --space-16: 64px;
  --space-24: 96px;
  --space-32: 128px;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-pill: 9999px;

  /* Layout */
  --max-width: 1200px;
  --nav-height: 72px;

  /* Typography */
  --font-heading: 'Outfit', sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, sans-serif;
  --font-size-base: 18px;
  --line-height-base: 1.6;
  --line-height-heading: 1.15;
}

/* --- Dark Mode --- */
[data-theme="dark"] {
  --text-primary: #f5f5f5;
  --text-secondary: #a3a3a3;
  --text-tertiary: #737373;
  --border: #2a2a2a;
  --border-light: #1f1f1f;
  --bg: #0f1419;
  --bg-alt: #161b22;
  --nav-bg: rgba(15, 20, 25, 0.85);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.4);
}

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

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  line-height: var(--line-height-base);
  color: var(--text-primary);
  background-color: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

a {
  color: var(--purple-500);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--purple-600);
}

ul, ol {
  list-style: none;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: var(--line-height-heading);
  color: var(--text-primary);
}

h1 {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  letter-spacing: -0.015em;
}

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

p {
  color: var(--text-secondary);
  max-width: 65ch;
}

strong {
  font-weight: 600;
  color: var(--text-primary);
}

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

.section {
  padding: var(--space-24) 0;
}

.section-alt {
  background-color: var(--bg-alt);
}

.section-purple {
  background-color: var(--purple-50);
}

[data-theme="dark"] .section-purple {
  background-color: rgba(88, 28, 135, 0.1);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-16);
}

.section-header p {
  margin: var(--space-4) auto 0;
  font-size: 1.125rem;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-8);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
  border: 2px solid transparent;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background-color: var(--purple-500);
  color: #ffffff;
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  background-color: var(--purple-600);
  color: #ffffff;
  box-shadow: var(--shadow-glow-strong);
}

.btn-secondary {
  background-color: transparent;
  color: var(--purple-500);
  border-color: var(--purple-500);
}

.btn-secondary:hover {
  background-color: var(--purple-50);
  color: var(--purple-600);
  border-color: var(--purple-600);
}

[data-theme="dark"] .btn-secondary:hover {
  background-color: rgba(168, 85, 247, 0.1);
}

.btn-lg {
  padding: var(--space-4) var(--space-12);
  font-size: 1.125rem;
}

.btn-sm {
  padding: var(--space-2) var(--space-6);
  font-size: 0.875rem;
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: var(--nav-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  transition: background-color 0.3s ease;
}

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

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--text-primary);
}

.nav-monogram {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--purple-500);
  color: #ffffff;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.875rem;
  border-radius: var(--radius-sm);
}

.nav-wordmark {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text-primary);
}

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

.nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
  position: relative;
}

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

/* Nav dropdown */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-trigger {
  display: flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  background: none;
  border: none;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-secondary);
  font-family: var(--font-body);
  transition: color 0.2s ease;
}

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

.nav-dropdown-trigger svg {
  width: 14px;
  height: 14px;
  transition: transform 0.2s ease;
}

.nav-dropdown:hover .nav-dropdown-trigger svg,
.nav-dropdown.open .nav-dropdown-trigger svg {
  transform: rotate(180deg);
}

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%);
  min-width: 240px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-2);
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s ease;
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown.open .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
}

.nav-dropdown-item {
  display: block;
  padding: var(--space-3) var(--space-4);
  font-size: 0.9375rem;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all 0.15s ease;
}

.nav-dropdown-item:hover {
  background-color: var(--purple-50);
  color: var(--purple-600);
}

[data-theme="dark"] .nav-dropdown-item:hover {
  background-color: rgba(168, 85, 247, 0.1);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  cursor: pointer;
  color: var(--text-secondary);
  transition: all 0.2s ease;
}

.theme-toggle:hover {
  border-color: var(--purple-500);
  color: var(--purple-500);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
}

/* Mobile menu */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
}

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

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

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

.mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg);
  padding: var(--space-8) var(--space-6);
  overflow-y: auto;
  z-index: 999;
}

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

.mobile-menu-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.mobile-menu-link {
  display: block;
  padding: var(--space-4) 0;
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--text-primary);
  text-decoration: none;
  border-bottom: 1px solid var(--border-light);
}

.mobile-menu-group-title {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--space-6) 0 var(--space-2);
}

.mobile-menu-sublink {
  display: block;
  padding: var(--space-3) 0 var(--space-3) var(--space-4);
  font-size: 1rem;
  color: var(--text-secondary);
  text-decoration: none;
}

.mobile-menu-cta {
  margin-top: var(--space-8);
}

/* --- Hero Section --- */
.hero {
  position: relative;
  padding: calc(var(--nav-height) + var(--space-24)) 0 var(--space-24);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 10%, rgba(168, 85, 247, 0.10), transparent),
    radial-gradient(ellipse 60% 50% at 80% 15%, rgba(192, 38, 211, 0.06), transparent),
    radial-gradient(ellipse 70% 60% at 75% 80%, rgba(59, 130, 246, 0.06), transparent);
  pointer-events: none;
}

.hero-content {
  position: relative;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero h1 {
  margin-bottom: var(--space-6);
}

.hero-subtitle {
  font-size: clamp(1.125rem, 2vw, 1.375rem);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto var(--space-8);
  line-height: 1.5;
}

.hero-ctas {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.hero-visual {
  position: relative;
  max-width: 700px;
  margin: var(--space-16) auto 0;
}

.hero-mockup {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  padding: var(--space-8);
}

.hero-phone {
  width: 140px;
  height: 280px;
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: var(--radius-xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  box-shadow: var(--shadow-md);
  position: relative;
}

.hero-phone-notch {
  position: absolute;
  top: 8px;
  width: 50%;
  height: 16px;
  background: var(--border);
  border-radius: var(--radius-pill);
}

.hero-phone-icon {
  color: var(--purple-500);
}

.hero-phone-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.hero-arrow {
  color: var(--purple-500);
  flex-shrink: 0;
}

.hero-browser {
  width: 280px;
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.hero-browser-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: var(--space-3) var(--space-4);
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
}

.hero-browser-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.hero-browser-dot:nth-child(1) { background: #ef4444; }
.hero-browser-dot:nth-child(2) { background: #f59e0b; }
.hero-browser-dot:nth-child(3) { background: #22c55e; }

.hero-browser-content {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.hero-form-field {
  height: 28px;
  border-radius: var(--radius-sm);
  background: var(--purple-100);
  position: relative;
  overflow: hidden;
}

[data-theme="dark"] .hero-form-field {
  background: rgba(168, 85, 247, 0.15);
}

.hero-form-field::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 60%, var(--purple-200));
  animation: shimmer 2s ease-in-out infinite;
}

@keyframes shimmer {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

.hero-form-field:nth-child(odd) {
  width: 85%;
}

.hero-checkmark {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-2);
  color: var(--success);
  font-size: 0.875rem;
  font-weight: 600;
}

/* --- Steps Section (How It Works brief) --- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
  max-width: 960px;
  margin: 0 auto;
}

.step {
  text-align: center;
  padding: var(--space-8) var(--space-6);
}

.step-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  background: var(--purple-100);
  color: var(--purple-600);
  border-radius: var(--radius-lg);
  margin: 0 auto var(--space-4);
}

[data-theme="dark"] .step-icon {
  background: rgba(168, 85, 247, 0.15);
}

.step-icon svg {
  width: 28px;
  height: 28px;
}

.step h3 {
  margin-bottom: var(--space-3);
}

.step p {
  margin: 0 auto;
  font-size: 1rem;
}

/* --- Value Proposition --- */
.value-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.value-content h2 {
  margin-bottom: var(--space-6);
}

.value-content p {
  margin-bottom: var(--space-4);
  font-size: 1.125rem;
}

.value-highlight {
  color: var(--purple-600);
  font-weight: 700;
}

.value-stat {
  background: linear-gradient(135deg, var(--purple-50), var(--purple-100));
  border: 1px solid var(--purple-200);
  border-radius: var(--radius-xl);
  padding: var(--space-12);
  text-align: center;
}

[data-theme="dark"] .value-stat {
  background: linear-gradient(135deg, rgba(88, 28, 135, 0.15), rgba(168, 85, 247, 0.1));
  border-color: rgba(168, 85, 247, 0.2);
}

.value-stat-number {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  color: var(--purple-600);
  line-height: 1;
  margin-bottom: var(--space-3);
}

.value-stat-label {
  font-size: 1.125rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.value-stat-sub {
  font-size: 0.875rem;
  color: var(--text-tertiary);
  margin-top: var(--space-2);
}

/* --- Trust Section --- */
.trust-headline {
  text-align: center;
  font-size: 1.5rem;
  margin-bottom: var(--space-12);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  max-width: 800px;
  margin: 0 auto var(--space-8);
}

.trust-item {
  text-align: center;
  padding: var(--space-6) var(--space-4);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all 0.2s ease;
}

.trust-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.trust-icon {
  font-size: 1.75rem;
  margin-bottom: var(--space-3);
}

.trust-label {
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--text-primary);
}

.trust-note {
  text-align: center;
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 500px;
  margin: 0 auto;
}

/* --- Use Cases Grid --- */
.use-cases-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.use-case-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: var(--space-8) var(--space-6);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  text-decoration: none;
  transition: all 0.2s ease;
}

.use-case-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--purple-300);
}

.use-case-icon {
  font-size: 1.75rem;
  margin-bottom: var(--space-4);
}

.use-case-card h3 {
  font-size: 1.125rem;
  margin-bottom: var(--space-2);
  color: var(--text-primary);
}

.use-case-card p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

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

.testimonial-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  box-shadow: var(--shadow-sm);
}

.testimonial-quote {
  font-size: 1.0625rem;
  color: var(--text-primary);
  line-height: 1.6;
  margin-bottom: var(--space-6);
  font-style: italic;
}

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

.testimonial-avatar {
  width: 40px;
  height: 40px;
  background: var(--purple-100);
  color: var(--purple-600);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.875rem;
}

[data-theme="dark"] .testimonial-avatar {
  background: rgba(168, 85, 247, 0.15);
}

.testimonial-name {
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--text-primary);
}

.testimonial-role {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
}

/* --- Social Proof Line --- */
.social-proof-line {
  text-align: center;
  font-size: 1rem;
  color: var(--text-tertiary);
  margin-top: var(--space-8);
}

/* --- CTA Section --- */
.cta-section {
  text-align: center;
  background: linear-gradient(135deg, var(--purple-50), var(--purple-100));
  border-radius: var(--radius-xl);
  padding: var(--space-16) var(--space-8);
  margin: 0 var(--space-6);
}

[data-theme="dark"] .cta-section {
  background: linear-gradient(135deg, rgba(88, 28, 135, 0.2), rgba(168, 85, 247, 0.1));
}

.cta-section h2 {
  margin-bottom: var(--space-6);
}

.cta-section .cta-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-6);
  flex-wrap: wrap;
  margin-top: var(--space-8);
}

.cta-link {
  font-size: 1rem;
  color: var(--purple-500);
  font-weight: 500;
}

/* --- Footer --- */
.footer {
  border-top: 1px solid var(--border);
  padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

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

.footer-brand .nav-brand {
  margin-bottom: var(--space-4);
}

.footer-tagline {
  font-size: 0.9375rem;
  color: var(--text-tertiary);
}

.footer-column h4 {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-4);
}

.footer-column ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-column a {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-column a:hover {
  color: var(--purple-500);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-8);
  border-top: 1px solid var(--border);
  font-size: 0.875rem;
  color: var(--text-tertiary);
  flex-wrap: wrap;
  gap: var(--space-4);
}

/* --- Page Hero (sub-pages) --- */
.page-hero {
  position: relative;
  padding: calc(var(--nav-height) + var(--space-16)) 0 var(--space-16);
  text-align: center;
  overflow: hidden;
}

.page-hero .hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 10%, rgba(168, 85, 247, 0.10), transparent),
    radial-gradient(ellipse 60% 50% at 80% 15%, rgba(192, 38, 211, 0.06), transparent);
  pointer-events: none;
}

.page-hero-content {
  position: relative;
  max-width: 700px;
  margin: 0 auto;
}

.page-hero h1 {
  margin-bottom: var(--space-6);
}

.page-hero p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin: 0 auto;
}

/* --- How It Works Page --- */
.hiw-section {
  padding: var(--space-16) 0;
}

.hiw-section:nth-child(even of .hiw-section) {
  background-color: var(--bg-alt);
}

.hiw-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
}

.hiw-content.reverse {
  direction: rtl;
}

.hiw-content.reverse > * {
  direction: ltr;
}

.hiw-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--purple-500);
  color: #ffffff;
  font-family: var(--font-heading);
  font-weight: 700;
  border-radius: var(--radius-pill);
  margin-bottom: var(--space-4);
}

.hiw-text h2 {
  margin-bottom: var(--space-6);
}

.hiw-steps-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.hiw-step-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-6);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.hiw-step-num {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  background: var(--purple-100);
  color: var(--purple-600);
  font-weight: 700;
  font-size: 0.8125rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

[data-theme="dark"] .hiw-step-num {
  background: rgba(168, 85, 247, 0.15);
}

.hiw-step-text {
  font-size: 1rem;
  color: var(--text-primary);
  line-height: 1.5;
}

.hiw-visual {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-12);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 300px;
}

.hiw-visual-icon {
  color: var(--purple-400);
  opacity: 0.5;
}

.hiw-visual-icon svg {
  width: 80px;
  height: 80px;
}

/* Comparison table */
.comparison-table {
  width: 100%;
  max-width: 700px;
  margin: 0 auto;
  border-collapse: separate;
  border-spacing: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.comparison-table th,
.comparison-table td {
  padding: var(--space-4) var(--space-6);
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.comparison-table th {
  background: var(--bg-alt);
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--text-primary);
}

.comparison-table th:first-child {
  color: var(--text-secondary);
  font-weight: 500;
}

.comparison-table td {
  font-size: 1rem;
}

.comparison-table tr:last-child td {
  border-bottom: none;
}

.comparison-table .without {
  color: var(--text-secondary);
}

.comparison-table .with {
  color: var(--purple-600);
  font-weight: 600;
}

.comparison-result {
  text-align: center;
  margin-top: var(--space-8);
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--purple-600);
}

/* --- Pricing Page --- */
.pricing-card-wrapper {
  display: flex;
  justify-content: center;
  margin-bottom: var(--space-16);
}

.pricing-card {
  background: var(--bg);
  border: 2px solid var(--purple-500);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-glow);
  padding: var(--space-12);
  text-align: center;
  max-width: 480px;
  width: 100%;
}

.pricing-amount {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  color: var(--purple-600);
  line-height: 1;
  margin-bottom: var(--space-2);
}

.pricing-period {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-8);
}

.pricing-features {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
  text-align: left;
}

.pricing-feature {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: 1rem;
  color: var(--text-primary);
}

.pricing-feature svg {
  width: 20px;
  height: 20px;
  color: var(--success);
  flex-shrink: 0;
}

.pricing-credits {
  text-align: center;
  max-width: 480px;
  margin: 0 auto;
  padding: var(--space-8);
  background: var(--bg-alt);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}

.pricing-credits p {
  margin: 0 auto;
}

/* --- FAQ --- */
.faq-list {
  max-width: 700px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-6);
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--text-primary);
  font-family: var(--font-body);
}

.faq-question:hover {
  color: var(--purple-600);
}

.faq-question svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  transition: transform 0.2s ease;
  color: var(--text-tertiary);
}

.faq-item.open .faq-question svg {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer-inner {
  padding: 0 var(--space-6) var(--space-6);
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --- About Page --- */
.about-story {
  max-width: 700px;
  margin: 0 auto;
}

.about-story p {
  font-size: 1.125rem;
  margin-bottom: var(--space-6);
  max-width: 100%;
}

.contact-form {
  max-width: 560px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-group label {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
}

.form-group input,
.form-group textarea {
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg);
  color: var(--text-primary);
  font-size: 1rem;
  transition: border-color 0.2s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--purple-500);
  box-shadow: 0 0 0 3px rgba(168, 85, 247, 0.1);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.contact-note {
  text-align: center;
  font-size: 1rem;
  color: var(--text-tertiary);
  margin-top: var(--space-4);
}

/* --- Use Case Page --- */
.use-case-hero {
  position: relative;
  padding: calc(var(--nav-height) + var(--space-16)) 0 var(--space-16);
  overflow: hidden;
}

.use-case-hero .hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 10%, rgba(168, 85, 247, 0.10), transparent),
    radial-gradient(ellipse 60% 50% at 80% 15%, rgba(192, 38, 211, 0.06), transparent);
  pointer-events: none;
}

.use-case-hero-content {
  position: relative;
  max-width: 700px;
}

.use-case-breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.875rem;
  color: var(--text-tertiary);
  margin-bottom: var(--space-6);
}

.use-case-breadcrumb a {
  color: var(--purple-500);
}

.use-case-hero h1 {
  margin-bottom: var(--space-6);
}

.use-case-hero p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-8);
}

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

.problem-content {
  max-width: 700px;
}

.problem-content h2 {
  margin-bottom: var(--space-6);
}

.problem-content p {
  font-size: 1.125rem;
  line-height: 1.7;
}

/* Benefits */
.benefits-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  max-width: 700px;
}

.benefit-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-6);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.benefit-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  color: var(--purple-500);
  margin-top: 2px;
}

.benefit-text {
  font-size: 1.0625rem;
  color: var(--text-primary);
  line-height: 1.5;
}

/* Example forms */
.forms-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.form-tag {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-4);
  background: var(--purple-50);
  color: var(--purple-700);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-pill);
  border: 1px solid var(--purple-200);
}

[data-theme="dark"] .form-tag {
  background: rgba(168, 85, 247, 0.1);
  border-color: rgba(168, 85, 247, 0.2);
}

/* ROI callout */
.roi-callout {
  background: linear-gradient(135deg, var(--purple-50), var(--purple-100));
  border: 2px solid var(--purple-300);
  border-radius: var(--radius-xl);
  padding: var(--space-12);
  text-align: center;
  max-width: 700px;
}

[data-theme="dark"] .roi-callout {
  background: linear-gradient(135deg, rgba(88, 28, 135, 0.2), rgba(168, 85, 247, 0.1));
  border-color: rgba(168, 85, 247, 0.3);
}

.roi-callout p {
  font-size: 1.25rem;
  color: var(--text-primary);
  font-weight: 500;
  margin: 0 auto;
  max-width: 100%;
}

/* Privacy note */
.privacy-note {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-6);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  max-width: 700px;
}

.privacy-note-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  color: var(--success);
}

.privacy-note p {
  font-size: 1rem;
  color: var(--text-secondary);
}

/* Use case CTA */
.use-case-cta {
  text-align: center;
  padding: var(--space-16) 0;
}

.use-case-cta h2 {
  margin-bottom: var(--space-8);
}

/* --- Animations --- */
.fade-up {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

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

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }

  .value-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .hiw-content {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .hiw-content.reverse {
    direction: ltr;
  }

  .hiw-visual {
    min-height: 200px;
  }
}

@media (max-width: 768px) {
  :root {
    --nav-height: 64px;
  }

  .section {
    padding: var(--space-16) 0;
  }

  .section-header {
    margin-bottom: var(--space-12);
  }

  .nav-links {
    display: none;
  }

  .nav-hamburger {
    display: flex;
  }

  .hero {
    padding: calc(var(--nav-height) + var(--space-16)) 0 var(--space-16);
  }

  .hero-mockup {
    flex-direction: column;
    gap: var(--space-6);
    padding: var(--space-6);
  }

  .hero-arrow {
    transform: rotate(90deg);
  }

  .hero-phone {
    width: 120px;
    height: 220px;
  }

  .hero-browser {
    width: 100%;
    max-width: 280px;
  }

  .steps {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

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

  .use-cases-grid {
    grid-template-columns: 1fr;
  }

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

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

  .cta-section {
    padding: var(--space-12) var(--space-6);
    margin: 0;
    border-radius: 0;
  }

  .comparison-table th,
  .comparison-table td {
    padding: var(--space-3) var(--space-4);
    font-size: 0.875rem;
  }
}

@media (max-width: 480px) {
  .hero-ctas {
    flex-direction: column;
    width: 100%;
  }

  .hero-ctas .btn {
    width: 100%;
  }

  .trust-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3);
  }

  .trust-item {
    padding: var(--space-4) var(--space-3);
  }
}

/* --- Accessibility --- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .fade-up {
    opacity: 1;
    transform: none;
  }
}

:focus-visible {
  outline: 2px solid var(--purple-500);
  outline-offset: 2px;
}

/* Skip to content */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  padding: var(--space-3) var(--space-6);
  background: var(--purple-500);
  color: #ffffff;
  font-weight: 600;
  border-radius: var(--radius-md);
  z-index: 10000;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: var(--space-4);
  color: #ffffff;
}