/* ==========================================================================
   Eddis Educativa & Studio Beauty - Landing Page 01 Design System
   ========================================================================== */

:root {
  --primary-eddis: #0052cc;
  --primary-eddis-dark: #073b8c;
  --primary-sb: #d946ef;
  --primary-sb-dark: #a21caf;
  --dark-navy: #0b1b3d;
  --dark-slate: #1e293b;
  --bg-light: #f8fafc;
  --bg-card: #ffffff;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --border-color: #e2e8f0;
  --accent-gold: #f59e0b;
  --success: #10b981;
  --error: #ef4444;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 40px rgba(15, 23, 42, 0.12);
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--text-main);
  background-color: var(--bg-light);
  line-height: 1.6;
}

body {
  overflow-x: hidden;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */

.site-header {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid var(--border-color);
  padding: 16px 0;
  box-shadow: var(--shadow-sm);
}

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand-logos {
  display: flex;
  align-items: center;
  gap: 24px;
}

.logo-wrapper {
  display: flex;
  align-items: center;
}

.logo-img {
  height: 68px;
  max-height: 80px;
  width: auto;
  object-fit: contain;
  transition: var(--transition);
}

.logo-img:hover {
  transform: scale(1.04);
}

.logo-divider {
  width: 2px;
  height: 48px;
  background-color: #cbd5e1;
}

.header-cta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 14px;
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

.cta-primary {
  background: linear-gradient(135deg, var(--primary-eddis) 0%, var(--dark-navy) 100%);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(0, 82, 204, 0.25);
}

.cta-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 82, 204, 0.35);
}

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

.hero-section {
  background: radial-gradient(circle at 80% 20%, rgba(217, 70, 239, 0.08) 0%, transparent 40%),
              radial-gradient(circle at 10% 80%, rgba(0, 82, 204, 0.08) 0%, transparent 40%),
              linear-gradient(180deg, #ffffff 0%, var(--bg-light) 100%);
  padding: 60px 0 80px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.hero-content h1 {
  font-size: 38px;
  font-weight: 800;
  line-height: 1.2;
  color: var(--dark-navy);
  margin-bottom: 18px;
  letter-spacing: -0.5px;
}

.hero-content h1 span.highlight-eddis {
  color: var(--primary-eddis);
}

.hero-content h1 span.highlight-sb {
  color: var(--primary-sb-dark);
}

.hero-subtitle {
  font-size: 17px;
  color: var(--text-muted);
  margin-bottom: 28px;
  max-width: 520px;
}

.hero-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 30px;
}

.hero-feature-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 600;
  color: var(--dark-slate);
}

.feature-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #eff6ff;
  color: var(--primary-eddis);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
}

/* ==========================================================================
   Form Container & Fields
   ========================================================================== */

.form-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(226, 232, 240, 0.8);
  position: relative;
}

.form-header {
  margin-bottom: 24px;
  text-align: center;
}

.form-header h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--dark-navy);
  margin-bottom: 6px;
}

.form-header p {
  font-size: 14px;
  color: var(--text-muted);
}

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--dark-slate);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.form-label .required-star {
  color: var(--error);
  margin-left: 2px;
}

.form-label .optional-tag {
  color: var(--text-light);
  font-weight: 400;
  text-transform: none;
  font-size: 12px;
  margin-left: 4px;
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  font-size: 15px;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-sm);
  background-color: #fafafa;
  color: var(--text-main);
  transition: var(--transition);
  font-family: inherit;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-eddis);
  background-color: #ffffff;
  box-shadow: 0 0 0 4px rgba(0, 82, 204, 0.12);
}

select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2064748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
}

/* Custom Sede Selection Cards */
.sede-options-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.sede-card-label {
  position: relative;
  cursor: pointer;
  display: block;
}

.sede-card-label input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.sede-card-inner {
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 14px;
  text-align: center;
  background: #ffffff;
  transition: var(--transition);
}

.sede-card-inner .sede-title {
  font-weight: 700;
  font-size: 14px;
  color: var(--dark-slate);
  display: block;
  margin-bottom: 4px;
}

.sede-card-inner .sede-email-badge {
  font-size: 11px;
  color: var(--text-muted);
  background: #f1f5f9;
  padding: 3px 8px;
  border-radius: 12px;
  display: inline-block;
}

.sede-card-label input[type="radio"]:checked + .sede-card-inner {
  border-color: var(--primary-eddis);
  background: #f0f7ff;
  box-shadow: 0 4px 12px rgba(0, 82, 204, 0.15);
}

.sede-card-label.sb-sede input[type="radio"]:checked + .sede-card-inner {
  border-color: var(--primary-sb-dark);
  background: #fdf4ff;
  box-shadow: 0 4px 12px rgba(217, 70, 239, 0.15);
}

.btn-submit {
  width: 100%;
  padding: 16px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--primary-eddis) 0%, var(--primary-eddis-dark) 100%);
  color: #ffffff;
  font-size: 16px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  box-shadow: 0 6px 18px rgba(0, 82, 204, 0.25);
  margin-top: 10px;
}

.btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 82, 204, 0.35);
}

.btn-submit:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

.spinner {
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: #ffffff;
  animation: spin 0.8s linear infinite;
  display: none;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Alert Notification */
.form-alert {
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 20px;
  display: none;
}

.form-alert.success {
  background-color: #ecfdf5;
  color: #065f46;
  border: 1px solid #a7f3d0;
}

.form-alert.error {
  background-color: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

/* ==========================================================================
   Courses Section
   ========================================================================== */

.section-courses {
  padding: 80px 0;
  background-color: #ffffff;
}

.section-title {
  text-align: center;
  margin-bottom: 50px;
}

.section-title h2 {
  font-size: 32px;
  font-weight: 800;
  color: var(--dark-navy);
  margin-bottom: 10px;
}

.section-title p {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
}

.courses-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.course-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.course-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.course-img-wrap {
  height: 180px;
  overflow: hidden;
  position: relative;
}

.course-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.course-card:hover .course-img {
  transform: scale(1.06);
}

.course-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(11, 27, 61, 0.85);
  backdrop-filter: blur(4px);
  color: #ffffff;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 20px;
}

.course-tag.sb {
  background: rgba(162, 28, 175, 0.85);
}

.course-body {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.course-body h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--dark-navy);
  margin-bottom: 8px;
}

.course-desc {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 16px;
  flex: 1;
}

.course-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-color);
  padding-top: 14px;
  font-size: 13px;
  color: var(--dark-slate);
  font-weight: 500;
}

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

.site-footer {
  background: var(--dark-navy);
  color: #ffffff;
  padding: 60px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand p {
  color: #94a3b8;
  font-size: 14px;
  margin-top: 14px;
  max-width: 380px;
}

.footer-title {
  font-size: 16px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 16px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: #cbd5e1;
  text-decoration: none;
  font-size: 14px;
  transition: var(--transition);
}

.footer-links a:hover {
  color: #ffffff;
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  text-align: center;
  font-size: 13px;
  color: #64748b;
}

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

@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .courses-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .header-inner {
    flex-direction: column;
    gap: 12px;
  }
  .hero-content h1 {
    font-size: 28px;
  }
  .hero-features {
    grid-template-columns: 1fr;
  }
  .sede-options-grid {
    grid-template-columns: 1fr;
  }
  .courses-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .form-card {
    padding: 24px;
  }
}