/* ========================================
   Elite Gym Egypt - Premium Dark Theme
   Bilingual (RTL/LTR) Support with CSS Logical Properties
   ======================================== */

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

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

:root {
  /* Brand Colors - HSL for easy manipulation */
  --color-lime: 84 81% 44%;
  --color-lime-light: 84 81% 54%;
  --color-cyan: 189 94% 43%;
  --color-cyan-light: 189 94% 53%;

  /* Dark Theme */
  --color-bg: #121214;
  --color-bg-elevated: #1a1a1d;
  --color-bg-glass: rgba(255, 255, 255, 0.05);
  --color-border: rgba(255, 255, 255, 0.1);

  /* Text */
  --color-text: #f8fafc;
  --color-text-muted: #94a3b8;
  --color-text-dim: #64748b;

  /* Typography */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;

  /* Border Radius */
  --radius-sm: 0.5rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms ease-out;
  --transition-base: 200ms ease-out;
  --transition-slow: 300ms ease-out;

  /* Z-index scale */
  --z-base: 1;
  --z-dropdown: 10;
  --z-sticky: 20;
  --z-fixed: 30;
  --z-modal: 40;
  --z-popover: 50;
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* RTL Support */
[dir="rtl"] {
  text-align: start;
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-block-end: var(--spacing-sm);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }

/* Links */
a {
  color: inherit;
  text-decoration: none;
}

/* Buttons */
button {
  font-family: var(--font-body);
  cursor: pointer;
  border: none;
  background: none;
}

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

/* ========================================
   UTILITY CLASSES
   ======================================== */

.container {
  width: 100%;
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: var(--spacing-md);
}

@media (min-width: 768px) {
  .container {
    padding-inline: var(--spacing-lg);
  }
}

@media (min-width: 1024px) {
  .container {
    padding-inline: var(--spacing-xl);
  }
}

/* Glass effect */
.glass {
  background: var(--color-bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--color-border);
}

/* Gradient text */
.gradient-text {
  background: linear-gradient(135deg, hsl(var(--color-lime)) 0%, hsl(var(--color-cyan)) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Section spacing */
.section {
  padding-block: var(--spacing-2xl);
}

@media (min-width: 768px) {
  .section {
    padding-block: 5rem;
  }
}

@media (min-width: 1024px) {
  .section {
    padding-block: 6rem;
  }
}

/* ========================================
   HEADER & NAVIGATION
   ======================================== */

.header {
  position: fixed;
  top: var(--spacing-md);
  inset-inline: var(--spacing-md);
  z-index: var(--z-fixed);
  transition: all var(--transition-base);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-full);
}

.nav__logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

/* Language Toggle */
.lang-toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  background: var(--color-bg-elevated);
  border-radius: var(--radius-full);
  padding: 0.25rem;
  border: 1px solid var(--color-border);
}

.lang-toggle__option {
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  transition: all var(--transition-base);
  position: relative;
  z-index: 1;
}

.lang-toggle__option:hover {
  color: hsl(var(--color-lime));
}

.lang-toggle__option.active {
  background: linear-gradient(135deg, hsl(var(--color-lime)) 0%, hsl(var(--color-cyan)) 100%);
  color: var(--color-bg);
}

/* CTA Button */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  cursor: pointer;
  text-align: center;
  white-space: nowrap;
}

.btn--primary {
  background: linear-gradient(135deg, hsl(var(--color-lime)) 0%, hsl(var(--color-cyan)) 100%);
  color: var(--color-bg);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(132, 204, 22, 0.3);
}

.btn--secondary {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

.btn--secondary:hover {
  border-color: hsl(var(--color-lime));
  color: hsl(var(--color-lime));
}

.btn--icon {
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: 50%;
}

/* Mobile menu toggle */
.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: 50%;
  cursor: pointer;
}

@media (max-width: 767px) {
  .menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .btn--desktop {
    display: none;
  }
}

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

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-block-start: 6rem;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
}

.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, var(--color-bg) 0%, transparent 50%, var(--color-bg) 100%);
}

.hero__content {
  text-align: center;
  max-width: 900px;
  margin-inline: auto;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--color-bg-glass);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 500;
  margin-block-end: var(--spacing-lg);
  backdrop-filter: blur(12px);
}

.hero__title {
  margin-block-end: var(--spacing-md);
  line-height: 1.1;
}

.hero__description {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin-inline: auto;
  margin-block-end: var(--spacing-xl);
  line-height: 1.7;
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  justify-content: center;
}

@media (max-width: 640px) {
  .hero__cta {
    flex-direction: column;
  }

  .hero__cta .btn {
    width: 100%;
  }
}

/* ========================================
   SCHEDULE SECTION
   ======================================== */

.schedule__tabs {
  display: flex;
  gap: var(--spacing-xs);
  margin-block-end: var(--spacing-xl);
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.schedule__tabs::-webkit-scrollbar {
  display: none;
}

.schedule__tab {
  padding: 0.75rem 1.5rem;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-weight: 600;
  white-space: nowrap;
  transition: all var(--transition-base);
  cursor: pointer;
}

.schedule__tab:hover {
  border-color: hsl(var(--color-lime));
}

.schedule__tab.active {
  background: linear-gradient(135deg, hsl(var(--color-lime)) 0%, hsl(var(--color-cyan)) 100%);
  color: var(--color-bg);
  border-color: transparent;
}

.schedule__grid {
  display: grid;
  gap: var(--spacing-md);
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.schedule__card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  transition: all var(--transition-base);
  cursor: pointer;
}

.schedule__card:hover {
  border-color: hsl(var(--color-lime));
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(132, 204, 22, 0.15);
}

.schedule__time {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: var(--color-bg-glass);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  color: hsl(var(--color-cyan-light));
  margin-block-end: var(--spacing-sm);
}

.schedule__name {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  margin-block-end: 0.5rem;
}

.schedule__meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-block-start: var(--spacing-sm);
  padding-block-start: var(--spacing-sm);
  border-block-start: 1px solid var(--color-border);
}

.schedule__level {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  background: var(--color-bg-glass);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  color: hsl(var(--color-lime-light));
}

/* Empty state */
.schedule__empty {
  text-align: center;
  padding: var(--spacing-2xl);
  color: var(--color-text-muted);
}

/* ========================================
   PRICING SECTION
   ======================================== */

.pricing__toggle {
  display: flex;
  justify-content: center;
  margin-block-end: var(--spacing-xl);
}

.pricing__toggle-wrapper {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 0.25rem;
}

.pricing__toggle-option {
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  transition: all var(--transition-base);
  cursor: pointer;
}

.pricing__toggle-option:hover {
  color: hsl(var(--color-lime));
}

.pricing__toggle-option.active {
  background: linear-gradient(135deg, hsl(var(--color-lime)) 0%, hsl(var(--color-cyan)) 100%);
  color: var(--color-bg);
}

.pricing__grid {
  display: grid;
  gap: var(--spacing-lg);
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  max-width: 1200px;
  margin-inline: auto;
}

.pricing__card {
  position: relative;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  transition: all var(--transition-slow);
}

.pricing__card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 60px rgba(132, 204, 22, 0.2);
}

.pricing__card--featured {
  border-color: hsl(var(--color-lime));
  background: linear-gradient(135deg, rgba(132, 204, 22, 0.05) 0%, rgba(34, 211, 238, 0.05) 100%);
}

.pricing__badge {
  position: absolute;
  top: -12px;
  inset-inline-start: 50%;
  transform: translateX(-50%);
  padding: 0.5rem 1rem;
  background: linear-gradient(135deg, hsl(var(--color-lime)) 0%, hsl(var(--color-cyan)) 100%);
  color: var(--color-bg);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-full);
}

[dir="rtl"] .pricing__badge {
  transform: translateX(50%);
}

.pricing__name {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  margin-block-end: 0.5rem;
}

.pricing__description {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  margin-block-end: var(--spacing-lg);
}

.pricing__price {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin-block-end: var(--spacing-lg);
}

.pricing__amount {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 800;
  line-height: 1;
  background: linear-gradient(135deg, hsl(var(--color-lime)) 0%, hsl(var(--color-cyan)) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.pricing__currency {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.pricing__period {
  font-size: 0.875rem;
  color: var(--color-text-dim);
}

.pricing__features {
  list-style: none;
  margin-block-end: var(--spacing-lg);
}

.pricing__feature {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding-block: 0.75rem;
  border-block-end: 1px solid var(--color-border);
}

.pricing__feature:last-child {
  border-block-end: none;
}

.pricing__feature-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin-block-start: 0.125rem;
}

.pricing__feature-icon--included {
  color: hsl(var(--color-lime));
}

.pricing__feature-icon--excluded {
  color: var(--color-text-dim);
}

.pricing__feature-text {
  font-size: 0.9375rem;
  flex: 1;
}

.pricing__feature--excluded .pricing__feature-text {
  color: var(--color-text-dim);
  text-decoration: line-through;
}

/* ========================================
   WHATSAPP FLOATING BUTTON
   ======================================== */

.whatsapp-float {
  position: fixed;
  bottom: var(--spacing-lg);
  inset-inline-end: var(--spacing-lg);
  z-index: var(--z-fixed);
}

.whatsapp-float__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
  border-radius: 50%;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  transition: all var(--transition-base);
  cursor: pointer;
  position: relative;
}

.whatsapp-float__btn::before {
  content: '';
  position: absolute;
  inset: -8px;
  background: #25d366;
  border-radius: 50%;
  opacity: 0.3;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
    opacity: 0.3;
  }
  50% {
    transform: scale(1.1);
    opacity: 0;
  }
}

.whatsapp-float__btn:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(37, 211, 102, 0.5);
}

.whatsapp-float__icon {
  width: 32px;
  height: 32px;
  color: white;
  position: relative;
  z-index: 1;
}

/* ========================================
   SECTION HEADER
   ======================================== */

.section__header {
  text-align: center;
  max-width: 700px;
  margin-inline: auto;
  margin-block-end: var(--spacing-2xl);
}

.section__badge {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: var(--color-bg-glass);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  margin-block-end: var(--spacing-sm);
  color: hsl(var(--color-lime-light));
}

.section__title {
  margin-block-end: var(--spacing-sm);
}

.section__description {
  color: var(--color-text-muted);
  font-size: 1.125rem;
  line-height: 1.7;
}

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

.footer {
  border-block-start: 1px solid var(--color-border);
  padding-block: var(--spacing-xl);
  margin-block-start: var(--spacing-2xl);
}

.footer__content {
  text-align: center;
  color: var(--color-text-muted);
}

.footer__logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  margin-block-end: var(--spacing-sm);
}

.footer__text {
  font-size: 0.875rem;
  margin-block-end: var(--spacing-md);
}

.footer__social {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
}

.footer__social-link {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: 50%;
  transition: all var(--transition-base);
  cursor: pointer;
}

.footer__social-link:hover {
  border-color: hsl(var(--color-lime));
  transform: translateY(-2px);
}

/* ========================================
   LOADING STATE
   ======================================== */

.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl);
}

.loading__spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-border);
  border-top-color: hsl(var(--color-lime));
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

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

@media (max-width: 768px) {
  :root {
    --spacing-2xl: 3rem;
  }

  .hero {
    min-height: 90vh;
    padding-block-start: 5rem;
  }

  .schedule__grid {
    grid-template-columns: 1fr;
  }

  .pricing__grid {
    grid-template-columns: 1fr;
  }

  .whatsapp-float {
    bottom: var(--spacing-md);
    inset-inline-end: var(--spacing-md);
  }

  .whatsapp-float__btn {
    width: 56px;
    height: 56px;
  }
}

@media (max-width: 480px) {
  .container {
    padding-inline: var(--spacing-sm);
  }

  .header {
    inset-inline: var(--spacing-sm);
  }

  .schedule__tabs {
    gap: 0.5rem;
  }

  .schedule__tab {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
  }
}

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

/* Focus states */
a:focus-visible,
button:focus-visible,
.btn:focus-visible {
  outline: 2px solid hsl(var(--color-lime));
  outline-offset: 2px;
}

/* Skip to main content */
.skip-to-main {
  position: absolute;
  top: -100px;
  inset-inline-start: 0;
  background: hsl(var(--color-lime));
  color: var(--color-bg);
  padding: 1rem 2rem;
  z-index: var(--z-popover);
  transition: top var(--transition-base);
}

.skip-to-main:focus {
  top: 0;
}

/* Screen reader only */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}