/**
 * Landing Page Styles
 * "Warm Intelligence" aesthetic
 */

/* ========================================
   NAVBAR
   ======================================== */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(253, 251, 247, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: var(--space-4) var(--space-8);
  z-index: 1000;
  border-bottom: 1px solid var(--color-border-light);
  transition: all var(--duration-base) var(--ease-soft);
}

.navbar.scrolled {
  background: rgba(253, 251, 247, 0.98);
  box-shadow: var(--shadow-sm);
  padding: var(--space-3) var(--space-8);
}

.nav-content {
  max-width: var(--max-width-xl);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  height: 40px;
  width: auto;
  transition: transform var(--duration-base) var(--ease-soft);
}

.logo:hover {
  transform: scale(1.03);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

.nav-link {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-weight: var(--font-medium);
  font-size: var(--text-sm);
  transition: color var(--duration-fast) var(--ease-soft);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
}

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

/* Language Selector */
.language-selector {
  position: relative;
}

.language-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  background: var(--color-primary-muted);
  border: 1px solid transparent;
  color: var(--color-text);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-soft);
}

.language-toggle:hover {
  border-color: var(--color-primary);
}

.language-dropdown {
  position: absolute;
  top: calc(100% + var(--space-2));
  right: 0;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  min-width: 140px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--duration-base) var(--ease-soft);
}

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

.language-option {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-text);
  cursor: pointer;
  transition: background var(--duration-fast) var(--ease-soft);
}

.language-option:first-child {
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.language-option:last-child {
  border-radius: 0 0 var(--radius-md) var(--radius-md);
}

.language-option:hover {
  background: var(--color-bg-subtle);
}

.language-option.active {
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: var(--font-semibold);
}

/* Nav Buttons */
.btn-nav-secondary {
  background: transparent;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  font-weight: var(--font-semibold);
  font-size: var(--text-sm);
  cursor: pointer;
  transition: all var(--duration-base) var(--ease-soft);
}

.btn-nav-secondary:hover {
  background: var(--color-primary);
  color: var(--color-text-inverse);
}

.btn-nav-primary {
  background: var(--color-accent);
  color: var(--color-text);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-md);
  font-weight: var(--font-bold);
  font-size: var(--text-sm);
  text-decoration: none;
  box-shadow: var(--shadow-sm);
  transition: all var(--duration-base) var(--ease-soft);
}

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

/* Mobile Menu */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: var(--space-2);
}

.mobile-menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--duration-base) var(--ease-soft);
}

.mobile-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-6);
  box-shadow: var(--shadow-lg);
}

.mobile-menu.active {
  display: block;
  animation: slideUp var(--duration-base) var(--ease-out);
}

/* ========================================
   HERO SECTION
   ======================================== */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-height) + var(--space-16)) var(--space-8) var(--space-16);
  position: relative;
  background: var(--color-bg);
  overflow: hidden;
}

.hero-container {
  max-width: var(--max-width-xl);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-content {
  max-width: 560px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-primary-light);
  color: var(--color-primary);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  margin-bottom: var(--space-6);
  animation: fadeIn var(--duration-slow) var(--ease-out);
}

.hero-title {
  font-family: var(--font-display);
  font-size: var(--text-5xl);
  font-weight: var(--font-regular);
  line-height: var(--leading-tight);
  color: var(--color-text);
  margin-bottom: var(--space-5);
  animation: slideUp var(--duration-slow) var(--ease-out) 100ms both;
}

.hero-subtitle {
  font-size: var(--text-xl);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-8);
  animation: slideUp var(--duration-slow) var(--ease-out) 200ms both;
}

.hero-cta-group {
  display: flex;
  gap: var(--space-4);
  align-items: center;
  flex-wrap: wrap;
  animation: slideUp var(--duration-slow) var(--ease-out) 300ms both;
}

.cta-primary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-lg);
  font-weight: var(--font-semibold);
  font-size: var(--text-base);
  text-decoration: none;
  box-shadow: 0 4px 12px rgba(45, 138, 138, 0.25);
  transition: all var(--duration-base) var(--ease-soft);
}

.cta-primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(45, 138, 138, 0.3);
}

.cta-secondary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: transparent;
  color: var(--color-primary);
  padding: var(--space-4) var(--space-5);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-lg);
  font-weight: var(--font-semibold);
  font-size: var(--text-base);
  text-decoration: none;
  transition: all var(--duration-base) var(--ease-soft);
}

.cta-secondary:hover {
  background: var(--color-primary);
  color: var(--color-text-inverse);
}

/* Login Hint */
.login-hint {
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  margin-top: var(--space-8);
  animation: slideUp var(--duration-slow) var(--ease-out) 400ms both;
}

.login-hint-text {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.login-hint-link {
  color: var(--color-primary);
  font-weight: var(--font-semibold);
  text-decoration: none;
  cursor: pointer;
}

.login-hint-link:hover {
  text-decoration: underline;
}

/* Hero Demo Card */
.hero-demo {
  background: var(--color-card);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--color-border-light);
  animation: slideUp var(--duration-slow) var(--ease-out) 400ms both;
  position: relative;
}

/* Doodle decoration on demo card */
.hero-demo::before {
  content: '';
  position: absolute;
  top: -12px;
  right: 24px;
  width: 32px;
  height: 32px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23E9B44C'%3E%3Cpath d='M12 0L14 8L22 10L14 12L12 20L10 12L2 10L10 8L12 0Z'/%3E%3C/svg%3E");
  background-size: contain;
  animation: sparkle-float 3s ease-in-out infinite;
}

@keyframes sparkle-float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-8px) rotate(15deg); }
}

.demo-header {
  text-align: center;
  margin-bottom: var(--space-6);
}

.demo-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-text);
  margin-bottom: var(--space-1);
}

.demo-subtitle {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.demo-before,
.demo-after {
  margin-bottom: var(--space-4);
}

.demo-label {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: var(--font-bold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-2);
}

.demo-before .demo-label {
  color: var(--color-error);
}

.demo-after .demo-label {
  color: var(--color-primary);
}

.demo-text {
  background: var(--color-bg-subtle);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  border-left: 3px solid var(--color-error);
}

.demo-after .demo-text {
  border-left-color: var(--color-primary);
  background: var(--color-primary-light);
}

.demo-arrow {
  text-align: center;
  font-size: var(--text-2xl);
  color: var(--color-accent);
  margin: var(--space-4) 0;
}

/* Floating Shapes Background */
.floating-shapes {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: 1;
  pointer-events: none;
}

.shape {
  position: absolute;
  opacity: 0.06;
  animation: float 12s ease-in-out infinite;
}

.shape:nth-child(1) {
  width: 180px;
  height: 180px;
  background: var(--color-primary);
  border-radius: 40% 60% 60% 40% / 60% 30% 70% 40%;
  top: 15%;
  left: 5%;
}

.shape:nth-child(2) {
  width: 240px;
  height: 240px;
  background: var(--color-accent);
  border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
  top: 50%;
  right: 5%;
  animation-delay: 2s;
}

.shape:nth-child(3) {
  width: 120px;
  height: 120px;
  background: var(--color-primary);
  border-radius: 50%;
  bottom: 20%;
  left: 12%;
  animation-delay: 4s;
}

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  33% { transform: translateY(-20px) rotate(5deg); }
  66% { transform: translateY(-10px) rotate(-5deg); }
}

/* ========================================
   SECTIONS
   ======================================== */

.section {
  padding: var(--space-24) var(--space-8);
}

.container {
  max-width: var(--max-width-xl);
  margin: 0 auto;
}

.section-title {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  font-weight: var(--font-regular);
  text-align: center;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

/* Doodle underline on section titles */
.section-title span {
  position: relative;
  display: inline-block;
}

.section-title span::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -4px;
  height: 8px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 12' preserveAspectRatio='none'%3E%3Cpath d='M0,8 Q10,2 20,8 T40,8 T60,8 T80,8 T100,8' stroke='%232D8A8A' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-size: 100% 100%;
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  text-align: center;
  max-width: 640px;
  margin: 0 auto var(--space-12);
  line-height: var(--leading-relaxed);
}

/* ========================================
   APPROACHES SECTION
   ======================================== */

.approaches-section {
  background: var(--color-card);
}

.approaches-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}

.approach-card {
  background: var(--color-bg);
  padding: var(--space-8);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border-light);
  transition: all var(--duration-base) var(--ease-soft);
  position: relative;
}

.approach-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-border);
}

.approach-badge {
  display: inline-block;
  background: var(--color-accent-light);
  color: var(--color-accent-hover);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: var(--font-bold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-4);
}

.approach-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.approach-description {
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-5);
}

.approach-features {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-5) 0;
}

.approach-features li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.approach-features li::before {
  content: '✓';
  color: var(--color-primary);
  font-weight: bold;
  flex-shrink: 0;
}

.approach-example {
  background: var(--color-primary-light);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--color-primary);
}

.approach-example-title {
  font-size: var(--text-xs);
  font-weight: var(--font-bold);
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

.approach-example-text {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-normal);
}

/* ========================================
   PROCESS SECTION
   ======================================== */

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

.process-steps {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
  max-width: 900px;
  margin: 0 auto;
}

.process-step {
  background: var(--color-card);
  padding: var(--space-8);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border-light);
  text-align: center;
  transition: all var(--duration-base) var(--ease-soft);
}

.process-step:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.step-icon {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-full);
  margin: 0 auto var(--space-5);
  overflow: hidden;
  border: 3px solid var(--color-primary);
  box-shadow: var(--shadow-md);
}

.process-step:nth-child(2) .step-icon,
.process-step:nth-child(3) .step-icon {
  border-color: var(--color-accent);
}

.step-icon-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.step-number {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-primary);
  margin-right: var(--space-2);
}

.process-step:nth-child(2) .step-number,
.process-step:nth-child(3) .step-number {
  color: var(--color-accent);
}

.step-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.step-description {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
}

/* ========================================
   FEATURES SECTION
   ======================================== */

.features-section {
  background: var(--color-card);
}

.features-intro {
  text-align: center;
  background: var(--color-primary-light);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  margin-bottom: var(--space-12);
}

.features-intro-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.features-intro-text {
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  max-width: 640px;
  margin: 0 auto;
}

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

.feature-card {
  background: var(--color-bg);
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  transition: all var(--duration-base) var(--ease-soft);
}

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

.feature-icon {
  width: 56px;
  height: 56px;
  background: var(--color-accent-light);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
  color: var(--color-accent-hover);
}

.feature-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.feature-description {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
}

/* ========================================
   CTA SECTION
   ======================================== */

.cta-formation {
  background: var(--color-text);
  color: var(--color-text-inverse);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-formation .section-title {
  color: var(--color-accent);
}

.cta-formation .section-title span::after {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 12' preserveAspectRatio='none'%3E%3Cpath d='M0,8 Q10,2 20,8 T40,8 T60,8 T80,8 T100,8' stroke='%23E9B44C' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
}

.cta-formation .section-subtitle {
  color: rgba(255, 255, 255, 0.8);
}

.cta-formation-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-accent);
  color: var(--color-text);
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-lg);
  font-weight: var(--font-bold);
  font-size: var(--text-base);
  text-decoration: none;
  box-shadow: var(--shadow-lg);
  transition: all var(--duration-base) var(--ease-soft);
}

.cta-formation-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(233, 180, 76, 0.4);
}

/* ========================================
   FOOTER
   ======================================== */

.footer {
  background: var(--color-text);
  color: var(--color-text-inverse);
  text-align: center;
  padding: var(--space-12) var(--space-8);
}

.footer-logo {
  height: 40px;
  margin-bottom: var(--space-4);
  filter: brightness(0) saturate(100%) invert(80%) sepia(20%) saturate(500%) hue-rotate(35deg);
}

.footer-contact {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--text-sm);
}

.footer-contact a {
  color: var(--color-accent);
  text-decoration: none;
}

.footer-contact a:hover {
  text-decoration: underline;
}

/* ========================================
   SCROLL ANIMATIONS
   ======================================== */

.scroll-reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: all var(--duration-slower) var(--ease-out);
}

.scroll-reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ========================================
   RESPONSIVE
   ======================================== */

@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    gap: var(--space-12);
    text-align: center;
  }
  
  .hero-content {
    max-width: 100%;
  }
  
  .hero-cta-group {
    justify-content: center;
  }
  
  .approaches-grid,
  .process-steps {
    grid-template-columns: 1fr;
  }
  
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-actions {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .hero {
    padding-top: calc(var(--header-height) + var(--space-8));
  }
  
  .hero-title {
    font-size: var(--text-4xl);
  }
  
  .section {
    padding: var(--space-16) var(--space-5);
  }
  
  .section-title {
    font-size: var(--text-3xl);
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-cta-group {
    flex-direction: column;
    width: 100%;
  }
  
  .cta-primary,
  .cta-secondary {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: var(--text-3xl);
  }
  
  .hero-subtitle {
    font-size: var(--text-base);
  }
}

/* ========================================
   ACCESSIBILITY
   ======================================== */

@media (prefers-reduced-motion: reduce) {
  .scroll-reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  
  .shape {
    animation: none;
  }
  
  .hero-demo::before {
    animation: none;
  }
}

:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}