/* Homepage Styles - Presenting AMO Calcul */

/* Navigation Header additions */
.nav-links {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.nav-link {
  color: var(--color-text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: color var(--transition-fast);
}

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

@media (max-width: 640px) {
  .nav-links {
    display: none; /* Hide standard links on mobile header, focus on CTA */
  }
}

/* Hero Section */
.hero-section {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 3rem;
  align-items: center;
  padding: 3rem 0;
  min-height: 75vh;
}

.hero-text-area {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.hero-badge {
  align-self: flex-start;
  background: rgba(var(--color-primary-rgb), 0.08);
  border: 1px solid rgba(var(--color-primary-rgb), 0.15);
  color: var(--color-primary);
  padding: 0.4rem 0.8rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  animation: fadeIn var(--transition-normal);
}

.hero-badge .hero-badge-dot {
  width: 6px;
  height: 6px;
  background-color: var(--color-accent);
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 8px var(--color-accent);
}

.hero-title {
  font-size: 3.25rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--color-text);
  background: linear-gradient(135deg, var(--color-text) 50%, var(--color-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

[data-theme="dark"] .hero-title {
  background: linear-gradient(135deg, #ffffff 60%, var(--color-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.hero-ctas {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

/* Glassmorphism Interactive Mockup */
.hero-visual-area {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.visual-glow {
  position: absolute;
  width: 250px;
  height: 250px;
  background: radial-gradient(circle, rgba(var(--color-primary-rgb), 0.25) 0%, rgba(var(--color-accent-rgb), 0.05) 70%);
  border-radius: 50%;
  filter: blur(40px);
  z-index: -1;
  animation: pulseGlow 6s infinite alternate;
}

.mockup-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border-radius: var(--radius-xl);
  padding: 1.75rem;
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow-xl);
  transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.mockup-card:hover {
  transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
}

.mockup-header {
  border-bottom: 1px dashed var(--color-border);
  padding-bottom: 1rem;
  margin-bottom: 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.mockup-badge {
  font-size: 0.75rem;
  background-color: var(--color-primary);
  color: white;
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.mockup-hero {
  text-align: center;
  margin-bottom: 1.5rem;
}

.mockup-label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.mockup-value {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--color-primary);
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.25rem;
  margin: 0.25rem 0;
}

.mockup-ratio {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-accent);
  background: rgba(var(--color-accent-rgb), 0.1);
  padding: 0.2rem 0.6rem;
  border-radius: 50px;
}

.mockup-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

.mockup-metric-card {
  background: rgba(var(--color-primary-rgb), 0.03);
  border: 1px solid var(--color-border);
  padding: 0.75rem;
  border-radius: var(--radius-md);
  text-align: center;
}

.mockup-metric-card.danger {
  border-color: rgba(var(--color-danger-rgb), 0.15);
  background: rgba(var(--color-danger-rgb), 0.02);
}

.mockup-metric-label {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  display: block;
}

.mockup-metric-value {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--color-text);
}

.mockup-metric-card.danger .mockup-metric-value {
  color: var(--color-danger);
}

/* Features Grid */
.features-section {
  padding: 4rem 0;
}

.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 3rem auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.section-header h2 {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.section-header p {
  color: var(--color-text-muted);
  font-size: 1.05rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.feature-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.feature-icon-wrapper {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(var(--color-primary-rgb), 0.06);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.feature-card:hover .feature-icon-wrapper {
  background: var(--color-primary);
  color: white;
}

.feature-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
}

.feature-card p {
  font-size: 0.925rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* How it works */
.how-it-works-section {
  padding: 4rem 0;
  background: rgba(var(--color-primary-rgb), 0.02);
  border-radius: var(--radius-xl);
  margin: 2rem 0;
  border: 1px solid rgba(var(--color-primary-rgb), 0.05);
}

.steps-container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  max-width: 950px;
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
}

.step-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.75rem;
  position: relative;
  z-index: 2;
}

.step-number {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background-color: var(--color-card-bg);
  border: 3px solid var(--color-border);
  color: var(--color-text-muted);
  font-weight: 800;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.step-item:hover .step-number {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: scale(1.1);
  box-shadow: 0 0 0 5px rgba(var(--color-primary-rgb), 0.1);
}

.step-title-text {
  font-weight: 700;
  font-size: 1.05rem;
}

.step-desc-text {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.4;
}

@media (max-width: 768px) {
  .steps-container {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  
  .step-item {
    flex-direction: row;
    text-align: left;
    gap: 1.25rem;
    align-items: flex-start;
  }
  
  .step-number {
    flex-shrink: 0;
  }
}

/* FAQ Accordion */
.faq-section {
  padding: 4rem 0;
}

.faq-list {
  max-width: 700px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.faq-item:hover {
  border-color: rgba(var(--color-primary-rgb), 0.3);
}

.faq-question {
  width: 100%;
  padding: 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: none;
  border: none;
  font-weight: 600;
  font-size: 1.025rem;
  text-align: left;
  cursor: pointer;
  color: var(--color-text);
  gap: 1rem;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal) ease-out;
  padding: 0 1.25rem;
  color: var(--color-text-muted);
  font-size: 0.925rem;
  line-height: 1.6;
}

.faq-answer-inner {
  padding-bottom: 1.25rem;
}

.faq-icon {
  width: 18px;
  height: 18px;
  color: var(--color-text-muted);
  transition: transform var(--transition-fast) ease;
  flex-shrink: 0;
}

.faq-item.active {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
  color: var(--color-primary);
}

.faq-item.active .faq-answer {
  max-height: 300px; /* arbitrary height to slide down */
}

/* Animations pulse Glow */
@keyframes pulseGlow {
  0% { transform: scale(1); opacity: 0.8; }
  100% { transform: scale(1.1); opacity: 1; }
}

/* Responsive adjustments */
@media (max-width: 900px) {
  .hero-section {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 3.5rem;
    padding: 2rem 0;
  }
  
  .hero-badge {
    align-self: center;
  }
  
  .hero-ctas {
    justify-content: center;
  }
  
  .hero-visual-area {
    margin-top: 1.5rem;
  }
  
  .mockup-card {
    transform: none;
  }
  
  .mockup-card:hover {
    transform: translateY(-4px);
  }
}