/* ============================================
   Lanedu - Landing Page Custom Styles
   Complement to TailwindCSS
   ============================================ */

/* --------------------------------------------
   1. Variables CSS
   -------------------------------------------- */
:root {
  --deep-blue: #1e3a5f;
  --primary-blue: #2563eb;
  --secondary-blue: #3b82f6;
  --light-blue: #dbeafe;
  --light-gray: #f8fafc;
  --text-dark: #1e293b;
  --text-gray: #64748b;
}

/* --------------------------------------------
   2. Reset / Global
   -------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--text-dark);
}

/* --------------------------------------------
   3. Header / Nav
   -------------------------------------------- */
.header-scrolled {
  background-color: rgba(255, 255, 255, 0.95);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  backdrop-filter: blur(8px);
}

/* --------------------------------------------
   4. Hero - Gradient fallback + entrada
   -------------------------------------------- */
.hero-gradient {
  background: linear-gradient(135deg, var(--deep-blue) 0%, var(--primary-blue) 100%);
}

.hero-content {
  animation: fadeInUp 0.8s ease-out forwards;
}

/* --------------------------------------------
   5. Service Cards
   -------------------------------------------- */
.service-card {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.12);
}

/* --------------------------------------------
   6. Step Connectors
   -------------------------------------------- */
.step-connector {
  position: relative;
}

.step-connector::after {
  content: '';
  position: absolute;
  top: 2rem;
  left: 50%;
  width: 100%;
  height: 2px;
  background: linear-gradient(to right, var(--light-blue), var(--secondary-blue));
  z-index: 0;
}

.step-connector:last-child::after {
  display: none;
}

/* --------------------------------------------
   7. Animations
   -------------------------------------------- */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse-light {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

.pulse-light {
  animation: pulse-light 2s ease-in-out infinite;
}

/* Transition helper for interactive elements */
.btn-hover {
  transition: background-color 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
}

.btn-hover:hover {
  transform: translateY(-1px);
}

/* --------------------------------------------
   8. Form styles
   -------------------------------------------- */
.form-input {
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-input:focus {
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
  outline: none;
}

.form-input.error {
  border-color: #ef4444;
}

.form-input.error:focus {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2);
}

/* --------------------------------------------
   9. Mobile Menu
   -------------------------------------------- */
#mobile-menu {
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-open #mobile-menu {
  transform: translateX(0);
  opacity: 1;
}

/* --------------------------------------------
   10. Footer
   -------------------------------------------- */
.site-footer {
  margin-top: auto;
}

/* --------------------------------------------
   11. Responsive
   -------------------------------------------- */
@media (max-width: 767px) {
  .step-connector::after {
    top: 0;
    left: 2rem;
    width: 2px;
    height: 100%;
  }

  #mobile-menu {
    transform: translateX(100%);
    opacity: 0;
  }

  .nav-open #mobile-menu {
    transform: translateX(0);
    opacity: 1;
  }

  .hero-content {
    animation-duration: 0.6s;
  }
}