/* ==========================================================================
   LIC. FACUNDO PERUZZI | KINESIOLOGÍA & PERSONAL TRAINING CÓRDOBA
   Design System & Styling Framework (Versión 02 - Actual)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800;900&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  /* Color Palette */
  --bg-dark: #08090c;
  --bg-card: #11141b;
  --bg-card-hover: #181d28;
  --bg-glass: rgba(17, 20, 27, 0.75);
  
  --primary: #e61935;
  --primary-hover: #ff2e4d;
  --primary-glow: rgba(230, 25, 53, 0.35);
  --secondary: #10b981;
  --accent-gold: #f59e0b;
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  --border: rgba(255, 255, 255, 0.08);
  --border-active: rgba(230, 25, 53, 0.5);
  
  /* Fonts */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  /* Layout & Transitions */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow: 0 10px 30px -10px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 25px var(--primary-glow);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-main);
}

a {
  color: inherit;
  text-decoration: none;
}

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

/* Utility Classes */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.text-gradient {
  background: linear-gradient(135deg, #ffffff 0%, #cbd5e1 50%, var(--primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-primary {
  color: var(--primary);
}

.bg-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 1rem;
  background: rgba(230, 25, 53, 0.12);
  border: 1px solid var(--border-active);
  border-radius: var(--radius-full);
  color: var(--primary-hover);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Header & Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: 1rem 0;
  transition: var(--transition);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-badge {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--primary) 0%, #990b1e 100%);
  color: #fff;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 1.25rem;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-glow);
}

.brand-text h1 {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand-text p {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
}

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

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: var(--transition);
}

.nav-link:hover, .nav-link.active {
  color: var(--text-main);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  background: linear-gradient(135deg, var(--primary) 0%, #b80d24 100%);
  color: #fff;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.75rem 1.6rem;
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 20px var(--primary-glow);
  transition: var(--transition);
}

.btn-primary:hover {
  transform: translateY(-2px);
  background: linear-gradient(135deg, var(--primary-hover) 0%, var(--primary) 100%);
  box-shadow: 0 8px 25px rgba(230, 25, 53, 0.5);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  background: transparent;
  color: var(--text-main);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.75rem 1.6rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: var(--transition);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--text-muted);
}

/* Mobile Nav Toggle */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-main);
  font-size: 1.75rem;
  cursor: pointer;
}

/* Hero Section */
.hero {
  padding: 10rem 0 5rem;
  position: relative;
  overflow: hidden;
  background: radial-gradient(circle at 80% 20%, rgba(230, 25, 53, 0.15) 0%, transparent 50%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 4rem;
  align-items: center;
}

.hero-content h2 {
  font-size: 3.5rem;
  font-weight: 900;
  margin: 1.2rem 0;
  letter-spacing: -0.03em;
}

.hero-content p.subtitle {
  font-size: 1.2rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  max-width: 600px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

/* Hero Stats / Trust Badges */
.hero-badges {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.stat-card {
  background: var(--bg-card);
  padding: 1.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.stat-card:hover {
  border-color: var(--border-active);
  transform: translateY(-3px);
}

.stat-number {
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--primary-hover);
  font-family: var(--font-heading);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Hero Visual Profile Card */
.profile-card {
  background: linear-gradient(180deg, var(--bg-card) 0%, #0d0f15 100%);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 2rem;
  position: relative;
  box-shadow: var(--shadow);
  text-align: center;
}

.profile-avatar-container {
  width: 140px;
  height: 140px;
  margin: 0 auto 1.5rem;
  position: relative;
}

.profile-avatar-placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #1e2430 0%, #0d0f15 100%);
  border: 3px solid var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.5rem;
  color: #fff;
  box-shadow: 0 0 30px var(--primary-glow);
}

.profile-card h3 {
  font-size: 1.5rem;
  margin-bottom: 0.25rem;
}

.profile-card .tagline {
  color: var(--primary-hover);
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
}

.profile-locations {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  background: rgba(255, 255, 255, 0.03);
  padding: 1rem;
  border-radius: var(--radius-md);
  text-align: left;
}

.loc-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.875rem;
}

.loc-icon {
  color: var(--primary);
  font-size: 1.1rem;
  margin-top: 0.1rem;
}

/* Services Section */
.services {
  padding: 6rem 0;
  background: rgba(13, 15, 21, 0.5);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 4rem;
}

.section-header h2 {
  font-size: 2.5rem;
  margin: 1rem 0;
}

.section-header p {
  color: var(--text-muted);
  font-size: 1.1rem;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-active);
  transform: translateY(-5px);
  box-shadow: 0 20px 40px -15px rgba(0,0,0,0.6);
}

.service-icon {
  width: 60px;
  height: 60px;
  background: rgba(230, 25, 53, 0.1);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  color: var(--primary-hover);
  margin-bottom: 1.5rem;
}

.service-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.service-card p {
  color: var(--text-muted);
  font-size: 1rem;
  margin-bottom: 1.5rem;
}

.service-features {
  list-style: none;
  margin-bottom: 2rem;
}

.service-features li {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.9rem;
  color: var(--text-main);
  margin-bottom: 0.6rem;
}

/* Dual Sede Section */
.sedes-section {
  padding: 6rem 0;
}

.sedes-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem;
}

.sede-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
}

.sede-card:hover {
  border-color: var(--border-active);
}

.sede-badge {
  align-self: flex-start;
  margin-bottom: 1.25rem;
}

.sede-card h3 {
  font-size: 1.75rem;
  margin-bottom: 0.75rem;
}

.sede-card p.address {
  color: var(--text-muted);
  font-size: 1rem;
  margin-bottom: 1.5rem;
}

.sede-features-list {
  list-style: none;
  margin-bottom: 2rem;
}

.sede-features-list li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 0.75rem;
}

/* Linktree Section */
.linktree-section {
  padding: 6rem 0;
  background: radial-gradient(circle at 50% 50%, rgba(230, 25, 53, 0.08) 0%, transparent 70%);
}

.linktree-box {
  max-width: 650px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 3rem 2rem;
  text-align: center;
  box-shadow: var(--shadow);
}

.linktree-avatar {
  width: 90px;
  height: 90px;
  background: linear-gradient(135deg, var(--primary) 0%, #800010 100%);
  color: #fff;
  font-weight: 900;
  font-size: 2.2rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  box-shadow: var(--shadow-glow);
}

.linktree-links {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 2rem;
}

.link-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 1.5rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-weight: 600;
  font-size: 1rem;
  transition: var(--transition);
}

.link-btn:hover {
  background: rgba(230, 25, 53, 0.15);
  border-color: var(--primary-hover);
  transform: scale(1.02);
}

.link-btn.highlight {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.15) 0%, rgba(16, 185, 129, 0.05) 100%);
  border-color: var(--secondary);
  color: #fff;
}

/* Floating WhatsApp Button */
.whatsapp-float {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 99;
  width: 64px;
  height: 64px;
  background: #25d366;
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.2rem;
  box-shadow: 0 10px 25px rgba(37, 211, 102, 0.4);
  transition: var(--transition);
  cursor: pointer;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 15px 35px rgba(37, 211, 102, 0.6);
}

.whatsapp-pulse {
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: #25d366;
  opacity: 0.6;
  animation: pulse 2s infinite;
  z-index: -1;
}

@keyframes pulse {
  0% { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(1.6); opacity: 0; }
}

/* Modal Booking Form */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}

.modal-backdrop.active {
  opacity: 1;
  pointer-events: all;
}

.modal-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 550px;
  padding: 2.5rem;
  position: relative;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
  transform: translateY(20px);
  transition: var(--transition);
}

.modal-backdrop.active .modal-card {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
}

.form-group {
  margin-bottom: 1.25rem;
  text-align: left;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.form-control {
  width: 100%;
  padding: 0.85rem 1.1rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  background: rgba(255, 255, 255, 0.08);
}

/* Footer */
footer {
  padding: 4rem 0 2rem;
  border-top: 1px solid var(--border);
  background: #050608;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.85rem;
}

/* Responsive Breakpoints */
@media (max-width: 992px) {
  .hero-grid, .services-grid, .sedes-grid, .footer-grid {
    grid-template-columns: 1fr;
  }
  .hero-content h2 {
    font-size: 2.75rem;
  }
  .nav-links {
    display: none;
  }
  .mobile-toggle {
    display: block;
  }
}

@media (max-width: 576px) {
  .hero-content h2 {
    font-size: 2.2rem;
  }
  .hero-badges {
    grid-template-columns: 1fr;
  }
}