/* ============================================
   Mon Solaire Pro — Design System
   ============================================ */

:root {
  /* Brand Colors */
  --primary: #E67E22;
  --primary-dark: #D35400;
  --secondary: #F39C12;
  --gradient: linear-gradient(135deg, #F39C12 0%, #E67E22 100%);
  --gradient-hover: linear-gradient(135deg, #F5A623 0%, #E67E22 100%);

  /* Neutral */
  --bg: #FAFAFA;
  --surface: #FFFFFF;
  --text: #1A1A1A;
  --text-secondary: #555555;
  --muted: #777777;
  --border: rgba(0, 0, 0, 0.06);
  --border-strong: rgba(0, 0, 0, 0.10);

  /* Dark theme elements */
  --dark-bg: #1A1428;
  --dark-surface: #231D35;
  --hero-overlay: rgba(18, 14, 30, 0.72);

  /* Effects */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 40px rgba(230, 126, 34, 0.14);
  --shadow-glow: 0 0 30px rgba(230, 126, 34, 0.25);

  /* Radius (Material 3 scale) */
  --radius-sm: 12px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Spacing */
  --container-max: 1100px;
  --section-py: 5rem;

  /* Typography */
  --font: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.5rem;
  --text-2xl: 2rem;
  --text-3xl: 2.5rem;
  --text-4xl: 3.5rem;
}

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

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

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

a:hover {
  opacity: 0.85;
}

/* ============================================
   Utilities
   ============================================ */

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============================================
   Buttons
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  font-size: var(--text-base);
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background: var(--gradient-hover);
  box-shadow: var(--shadow-lg);
  transform: translateY(-1px);
  opacity: 1;
}

.btn-white {
  background: #fff;
  color: var(--primary-dark);
  box-shadow: var(--shadow-sm);
}

.btn-white:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
  opacity: 1;
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.35);
}

.btn-outline:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.08);
  opacity: 1;
}

.btn-lg {
  padding: 1rem 2.5rem;
  font-size: var(--text-lg);
  border-radius: var(--radius-lg);
}

/* ============================================
   Cards
   ============================================ */

.card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 2rem;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.card-icon {
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-md);
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  color: #fff;
  flex-shrink: 0;
}

.card-icon svg {
  width: 1.5rem;
  height: 1.5rem;
}

.card h3 {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text);
}

.card p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============================================
   Navbar
   ============================================ */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: 72px;
  display: flex;
  align-items: center;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--border);
}

.navbar.scrolled .nav-brand,
.navbar.scrolled .nav-link {
  color: var(--text);
}

.navbar.scrolled .nav-cta {
  background: var(--gradient);
  color: #fff;
  border: none;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 800;
  font-size: var(--text-lg);
  color: #fff;
  text-decoration: none;
  transition: color 0.3s ease;
}

.nav-brand img {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  transition: color 0.2s ease;
}

.nav-link:hover {
  color: #fff;
  opacity: 1;
}

.nav-cta {
  padding: 0.5rem 1.25rem;
  font-size: var(--text-sm);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.25);
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s ease;
}

.nav-cta:hover {
  background: rgba(255, 255, 255, 0.2);
  opacity: 1;
}

/* Mobile menu */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: all 0.3s ease;
}

.navbar.scrolled .nav-toggle span {
  background: var(--text);
}

/* ============================================
   Hero
   ============================================ */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #fff;
  overflow: hidden;
  padding: 8rem 1.5rem 5rem;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  z-index: 0;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--hero-overlay);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 1.5rem;
  backdrop-filter: blur(4px);
}

.hero-badge svg {
  width: 1rem;
  height: 1rem;
  color: var(--secondary);
}

.hero h1 {
  font-size: clamp(2.2rem, 6vw, var(--text-4xl));
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.25rem;
  letter-spacing: -0.02em;
}

.hero h1 .accent {
  color: var(--secondary);
}

.hero p {
  font-size: clamp(var(--text-base), 2.5vw, var(--text-xl));
  color: rgba(255, 255, 255, 0.8);
  max-width: 560px;
  margin: 0 auto 2rem;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}

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

.hero-stat strong {
  display: block;
  font-size: var(--text-xl);
  font-weight: 700;
  color: #fff;
}

.hero-stat span {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.6);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Scroll indicator */
.hero-scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  animation: bounce 2s infinite;
}

.hero-scroll svg {
  width: 1.5rem;
  height: 1.5rem;
  color: rgba(255, 255, 255, 0.5);
}

/* ============================================
   Sections
   ============================================ */

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

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 3.5rem;
}

.section-header h2 {
  font-size: clamp(var(--text-xl), 4vw, var(--text-3xl));
  font-weight: 800;
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}

.section-header p {
  font-size: var(--text-lg);
  color: var(--muted);
}

/* ============================================
   Features
   ============================================ */

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

/* ============================================
   CTA Banner
   ============================================ */

.cta-banner {
  background: var(--gradient);
  color: #fff;
  text-align: center;
  padding: 4rem 1.5rem;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 50%, rgba(255,255,255,0.12) 0%, transparent 60%);
  pointer-events: none;
}

.cta-banner h2 {
  font-size: clamp(var(--text-xl), 4vw, var(--text-2xl));
  font-weight: 800;
  margin-bottom: 0.75rem;
  position: relative;
}

.cta-banner p {
  font-size: var(--text-lg);
  opacity: 0.92;
  max-width: 480px;
  margin: 0 auto 1.5rem;
  position: relative;
}

/* ============================================
   Footer
   ============================================ */

.footer {
  background: var(--dark-bg);
  color: rgba(255, 255, 255, 0.6);
  padding: 3rem 0 2rem;
  font-size: var(--text-sm);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  text-align: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: var(--text-base);
  color: #fff;
}

.footer-brand img {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.25rem;
  list-style: none;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.6);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: #fff;
  opacity: 1;
}

.footer-copy {
  color: rgba(255, 255, 255, 0.4);
  font-size: var(--text-xs);
}

/* ============================================
   Legal pages shared styles
   ============================================ */

.page-header {
  background: var(--dark-bg);
  color: #fff;
  padding: 7rem 1.5rem 3rem;
  text-align: center;
}

.page-header h1 {
  font-size: clamp(var(--text-xl), 4vw, var(--text-2xl));
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.page-header p {
  opacity: 0.7;
  font-size: var(--text-base);
}

.page-content {
  max-width: 720px;
  margin: 0 auto;
  padding: 3rem 1.5rem 5rem;
}

.page-content h2 {
  color: var(--primary);
  margin: 2.5rem 0 0.75rem;
  font-size: var(--text-lg);
  font-weight: 700;
}

.page-content h3 {
  color: var(--text);
  margin: 1.5rem 0 0.5rem;
  font-size: var(--text-base);
  font-weight: 700;
}

.page-content p,
.page-content li {
  margin-bottom: 0.75rem;
  font-size: var(--text-base);
  color: var(--text-secondary);
}

.page-content ul {
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

.page-content a {
  color: var(--primary);
}

.page-content .date {
  color: var(--muted);
  font-size: var(--text-sm);
  margin-bottom: 2rem;
}

/* Warning / method boxes for delete account page */
.warning-box {
  background: #FFF3E0;
  border-left: 4px solid var(--secondary);
  padding: 1rem 1.25rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 1.5rem 0;
}

.warning-box strong {
  color: var(--primary-dark);
}

.method-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  margin: 1rem 0;
}

.method-box h3 {
  color: var(--primary);
  font-size: var(--text-base);
  margin-bottom: 0.5rem;
  margin-top: 0;
}

.steps {
  counter-reset: step;
  list-style: none;
  padding-left: 0;
}

.steps li {
  counter-increment: step;
  padding-left: 2.5rem;
  position: relative;
  margin-bottom: 0.75rem;
}

.steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0.15rem;
  width: 1.6rem;
  height: 1.6rem;
  background: var(--gradient);
  color: #fff;
  border-radius: 50%;
  font-size: 0.75rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ============================================
   Animations
   ============================================ */

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateX(-50%) translateY(0);
  }
  40% {
    transform: translateX(-50%) translateY(-8px);
  }
  60% {
    transform: translateX(-50%) translateY(-4px);
  }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delays */
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }

/* Accessibility: show content if JS disabled or reduced motion preferred */
@media (prefers-reduced-motion: reduce) {
  .animate-on-scroll {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 768px) {
  :root {
    --section-py: 3.5rem;
  }

  .nav-links {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(12px);
    flex-direction: column;
    padding: 1.5rem;
    gap: 1rem;
    transform: translateY(-150%);
    transition: transform 0.3s ease;
    box-shadow: var(--shadow-md);
    border-top: 1px solid var(--border);
  }

  .nav-links.open {
    transform: translateY(0);
  }

  .nav-link {
    color: var(--text) !important;
    font-size: var(--text-base);
  }

  .nav-cta {
    background: var(--gradient) !important;
    color: #fff !important;
    border: none !important;
    text-align: center;
    width: 100%;
  }

  .nav-toggle {
    display: flex;
  }

  .hero {
    min-height: auto;
    padding-top: 7rem;
    padding-bottom: 4rem;
  }

  .hero-scroll {
    display: none;
  }

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

  .footer-inner {
    gap: 1.25rem;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}