/* 🏃‍♂️ INL Energy Modern Design System v2.0 */

/* ===== MODERN FITNESS VARIABLES ===== */
:root {
  /* Enhanced Fitness Color Palette */
  --fitness-purple: #8b5cf6;
  --fitness-green: #10b981;
  --fitness-blue: #3b82f6;
  --fitness-yellow: #f59e0b;

  /* Fitness Gradients */
  --fitness-gradient-energy: linear-gradient(135deg, #8b5cf6 0%, #10b981 100%);
  --fitness-gradient-power: linear-gradient(135deg, #3b82f6 0%, #f59e0b 100%);
  --fitness-gradient-health: linear-gradient(135deg, #10b981 0%, #34d399 100%);
  --fitness-gradient-motivation: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);

  /* Modern Spacing */
  --fitness-space-xs: 0.5rem;
  --fitness-space-sm: 1rem;
  --fitness-space-md: 1.5rem;
  --fitness-space-lg: 2rem;
  --fitness-space-xl: 3rem;

  /* Modern Typography */
  --fitness-font-xs: 0.75rem;
  --fitness-font-sm: 0.875rem;
  --fitness-font-base: 1rem;
  --fitness-font-lg: 1.125rem;
  --fitness-font-xl: 1.25rem;
  --fitness-font-2xl: 1.5rem;
  --fitness-font-3xl: 2rem;

  /* Modern Shadows */
  --fitness-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --fitness-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --fitness-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --fitness-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

  /* Modern Border Radius */
  --fitness-radius-sm: 0.375rem;
  --fitness-radius-md: 0.5rem;
  --fitness-radius-lg: 0.75rem;
  --fitness-radius-xl: 1rem;
  --fitness-radius-2xl: 1.5rem;
}

/* ===== MODERN HEADER ===== */
.header-page {
  background: rgba(15, 15, 35, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(139, 92, 246, 0.2);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-main {
  padding: var(--fitness-space-sm) 0;
}

.header-logo {
  font-size: var(--fitness-font-xl);
  font-weight: 700;
  background: var(--fitness-gradient-energy);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
  transition: all 0.3s ease;
}

.header-logo:hover {
  transform: scale(1.05);
}

.header-nav-list {
  display: flex;
  gap: var(--fitness-space-lg);
  list-style: none;
  margin: 0;
  padding: 0;
}

.header-list-link {
  color: #ffffff;
  text-decoration: none;
  font-weight: 500;
  padding: var(--fitness-space-xs) var(--fitness-space-sm);
  border-radius: var(--fitness-radius-md);
  transition: all 0.3s ease;
  position: relative;
}

.header-list-link:hover {
  background: rgba(139, 92, 246, 0.1);
  color: var(--fitness-purple);
  transform: translateY(-2px);
}

.header-list-link::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--fitness-gradient-energy);
  transition: all 0.3s ease;
  transform: translateX(-50%);
}

.header-list-link:hover::after {
  width: 100%;
}

/* ===== MODERN LANGUAGE SWITCHER ===== */
.lang-switcher {
  display: flex;
  gap: 8px;
  align-items: center;
  background: rgba(255, 255, 255, 0.05);
  padding: 4px;
  border-radius: 12px;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.lang-btn {
  padding: 8px 14px;
  background: transparent;
  border: none;
  color: #9ca3af;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  font-size: 0.95rem;
  font-weight: 600;
  position: relative;
  overflow: hidden;
}

.lang-btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--fitness-gradient-energy);
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: -1;
}

.lang-btn:hover {
  color: #ffffff;
  transform: translateY(-2px);
}

.lang-btn:hover::before {
  opacity: 0.1;
}

.lang-btn.active {
  background: var(--fitness-gradient-energy);
  color: white;
  box-shadow: 0 4px 12px rgba(139, 92, 246, 0.4);
}

.lang-btn.active::before {
  opacity: 1;
}

/* ===== MODERN HERO SECTION ===== */
.hero-foto-tag {
  background: linear-gradient(135deg, rgba(15, 15, 35, 0.8), rgba(139, 92, 246, 0.3));
  border-radius: var(--fitness-radius-2xl);
  padding: var(--fitness-space-xl);
  text-align: center;
  position: relative;
  overflow: hidden;
  min-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-foto-tag::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--fitness-gradient-energy);
  opacity: 0.1;
  z-index: -1;
}

.hero-title {
  font-size: var(--fitness-font-3xl);
  font-weight: 800;
  margin-bottom: var(--fitness-space-md);
  background: var(--fitness-gradient-energy);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
  font-size: var(--fitness-font-lg);
  color: #e5e7eb;
  margin-bottom: var(--fitness-space-lg);
  line-height: 1.6;
}

/* ===== MODERN EXERCISE CARDS ===== */
.exercises-gallery-group {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--fitness-space-lg);
  margin-top: var(--fitness-space-lg);
}

.exercises-item-background,
.gallery-item-list {
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--fitness-radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.1);
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  backdrop-filter: blur(10px);
  min-height: 250px;
}

.exercises-item-background:hover,
.gallery-item-list:hover {
  transform: translateY(-8px);
  box-shadow: var(--fitness-shadow-xl);
  border-color: rgba(139, 92, 246, 0.3);
}

.exercises-item-background::before,
.gallery-item-list::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--fitness-gradient-energy);
  transform: scaleX(0);
  transition: transform 0.4s ease;
  z-index: 2;
}

.exercises-item-background:hover::before,
.gallery-item-list:hover::before {
  transform: scaleX(1);
}

.text-card {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
  padding: var(--fitness-space-lg);
  color: #ffffff;
  font-weight: 600;
  text-align: center;
  z-index: 2;
  transform: none;
}

.text-card h3 {
  font-size: var(--fitness-font-lg);
  margin-bottom: var(--fitness-space-xs);
  background: var(--fitness-gradient-energy);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-card p {
  font-size: var(--fitness-font-sm);
  color: #d1d5db;
  margin: 0;
}

/* ===== MODERN FILTERS ===== */
.filter-kit {
  display: flex;
  gap: var(--fitness-space-md);
  margin-bottom: var(--fitness-space-lg);
  flex-wrap: wrap;
  justify-content: center;
}

.exercises-gallery-filter {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--fitness-radius-lg);
  padding: var(--fitness-space-sm) var(--fitness-space-lg);
  color: #ffffff;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.exercises-gallery-filter:hover {
  background: rgba(139, 92, 246, 0.1);
  border-color: var(--fitness-purple);
  transform: translateY(-2px);
}

.exercises-gallery-filter.active {
  background: var(--fitness-gradient-energy);
  border-color: transparent;
  box-shadow: 0 4px 12px rgba(139, 92, 246, 0.4);
}

/* ===== MODERN QUOTE SECTION ===== */
.quote-for-today {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.1), rgba(16, 185, 129, 0.1));
  border-radius: var(--fitness-radius-xl);
  padding: var(--fitness-space-xl);
  text-align: center;
  margin: var(--fitness-space-xl) 0;
  border: 1px solid rgba(139, 92, 246, 0.2);
  backdrop-filter: blur(20px);
  position: relative;
  overflow: hidden;
}

.quote-for-today::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.1) 0%, transparent 70%);
  animation: rotate 20s linear infinite;
  z-index: -1;
}

@keyframes rotate {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.quote-text {
  font-size: var(--fitness-font-xl);
  font-style: italic;
  color: #ffffff;
  margin-bottom: var(--fitness-space-md);
  line-height: 1.6;
}

.quote-author {
  font-size: var(--fitness-font-base);
  color: var(--fitness-purple);
  font-weight: 600;
}

/* ===== MODERN INFORMATION SECTION ===== */
.information-section-img-container {
  background: linear-gradient(135deg, rgba(15, 15, 35, 0.8), rgba(59, 130, 246, 0.3));
  border-radius: var(--fitness-radius-xl);
  padding: var(--fitness-space-xl);
  text-align: center;
  position: relative;
  overflow: hidden;
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.information-section-text-container {
  padding: var(--fitness-space-lg);
}

.information-section-text-container h2 {
  font-size: var(--fitness-font-2xl);
  font-weight: 700;
  margin-bottom: var(--fitness-space-md);
  background: var(--fitness-gradient-energy);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.information-section-text-container p {
  font-size: var(--fitness-font-base);
  color: #d1d5db;
  line-height: 1.6;
  margin-bottom: var(--fitness-space-md);
}

/* ===== MODERN FOOTER ===== */
.footer-container {
  background: linear-gradient(135deg, rgba(15, 15, 35, 0.9), rgba(139, 92, 246, 0.2));
  border-radius: var(--fitness-radius-xl);
  padding: var(--fitness-space-xl);
  text-align: center;
  margin-top: var(--fitness-space-xl);
  border: 1px solid rgba(139, 92, 246, 0.2);
  backdrop-filter: blur(20px);
}

.footer-logo-social {
  margin-bottom: var(--fitness-space-lg);
}

.footer-logo-social h3 {
  font-size: var(--fitness-font-xl);
  font-weight: 700;
  background: var(--fitness-gradient-energy);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--fitness-space-md);
}

.footer-social-list {
  display: flex;
  gap: var(--fitness-space-md);
  justify-content: center;
  margin-bottom: var(--fitness-space-lg);
}

.footer-social-list-item {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  color: #9ca3af;
  transition: all 0.3s ease;
  text-decoration: none;
}

.footer-social-list-item:hover {
  background: var(--fitness-gradient-energy);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(139, 92, 246, 0.4);
}

.footer-slogan {
  font-size: var(--fitness-font-lg);
  color: #ffffff;
  margin-bottom: var(--fitness-space-md);
  line-height: 1.6;
}

.footer-modal-email {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--fitness-radius-lg);
  padding: var(--fitness-space-sm) var(--fitness-space-md);
  color: #ffffff;
  font-size: var(--fitness-font-base);
  width: 100%;
  max-width: 300px;
  margin-bottom: var(--fitness-space-md);
}

.footer-modal-email::placeholder {
  color: #9ca3af;
}

.footer-modal-button {
  background: var(--fitness-gradient-energy);
  border: none;
  border-radius: var(--fitness-radius-lg);
  padding: var(--fitness-space-sm) var(--fitness-space-lg);
  color: white;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: var(--fitness-font-base);
}

.footer-modal-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(139, 92, 246, 0.4);
}

.footer-rights {
  font-size: var(--fitness-font-sm);
  color: #9ca3af;
  margin-top: var(--fitness-space-lg);
}

/* ===== MODERN MODAL ===== */
.modal-window {
  background: rgba(15, 15, 35, 0.95);
  backdrop-filter: blur(20px);
  border-radius: var(--fitness-radius-xl);
  padding: var(--fitness-space-xl);
  border: 1px solid rgba(139, 92, 246, 0.2);
}

.modal-tablet-pc-ver {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--fitness-space-lg);
}

.modal-btns {
  display: flex;
  gap: var(--fitness-space-md);
  margin-top: var(--fitness-space-lg);
}

.modal-btn {
  background: var(--fitness-gradient-energy);
  border: none;
  border-radius: var(--fitness-radius-lg);
  padding: var(--fitness-space-sm) var(--fitness-space-lg);
  color: white;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: var(--fitness-font-base);
}

.modal-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(139, 92, 246, 0.4);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
  .header-nav-list {
    flex-direction: column;
    gap: var(--fitness-space-sm);
  }

  .exercises-gallery-group {
    grid-template-columns: 1fr;
    gap: var(--fitness-space-md);
  }

  .filter-kit {
    flex-direction: column;
    align-items: center;
  }

  .modal-tablet-pc-ver {
    grid-template-columns: 1fr;
  }

  .modal-btns {
    flex-direction: column;
  }

  .hero-title {
    font-size: var(--fitness-font-2xl);
  }

  .information-section-text-container h2 {
    font-size: var(--fitness-font-xl);
  }
}

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.8;
  }
}

.animate-fadeInUp {
  animation: fadeInUp 0.8s ease-out;
}

.animate-pulse {
  animation: pulse 2s infinite;
}

/* ===== LOADING STATES ===== */
.loading {
  opacity: 0.6;
  pointer-events: none;
}

.loading::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid rgba(139, 92, 246, 0.3);
  border-top: 2px solid var(--fitness-purple);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}