/* Main CSS file for Aryan Gym */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600;700&display=swap');

:root {
  /* Color variables */
  --primary-color: #20B2AA;
  --secondary-color: #FF8C00;
  --dark-color: #121212;
  --light-color: #f4f4f4;
  --success-color: #4CAF50;
  --warning-color: #FFC107;
  --error-color: #FF5252;
  --text-light: #f4f4f4;
  --text-dark: #333;
  
  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-xxl: 48px;
  
  /* Border radius */
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 16px;
  
  /* Transitions */
  --transition-speed: 0.3s;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Poppins', sans-serif;
  line-height: 1.6;
  background-color: var(--dark-color);
  color: var(--text-light);
  transition: background-color var(--transition-speed), color var(--transition-speed);
}

body.light-mode {
  background-color: var(--light-color);
  color: var(--text-dark);
}

a {
  text-decoration: none;
  color: var(--primary-color);
}

ul {
  list-style: none;
}

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

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-md);
}

.section {
  padding: var(--spacing-xl) 0;
}

/* Header */
.header {
  background-color: rgba(0, 0, 0, 0.9);
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: background-color var(--transition-speed);
}

.light-mode .header {
  background-color: rgba(255, 255, 255, 0.9);
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) 0;
}

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

.logo img {
  width: 50px;
  margin-right: var(--spacing-sm);
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
}

.nav-menu {
  display: flex;
  align-items: center;
}

.nav-item {
  margin-left: var(--spacing-lg);
}

.nav-link {
  color: var(--text-light);
  font-weight: 600;
  transition: color var(--transition-speed);
  display: flex;
  align-items: center;
}

.nav-link i {
  margin-right: var(--spacing-xs);
}

.light-mode .nav-link {
  color: var(--text-dark);
}

.nav-link:hover {
  color: var(--primary-color);
}

.theme-toggle {
  background: none;
  border: none;
  color: var(--text-light);
  cursor: pointer;
  font-size: 1.2rem;
  margin-left: var(--spacing-lg);
}

.light-mode .theme-toggle {
  color: var(--text-dark);
}

.hamburger {
  display: none;
  cursor: pointer;
}

.bar {
  display: block;
  width: 25px;
  height: 3px;
  margin: 5px auto;
  background-color: var(--text-light);
  transition: all 0.3s ease-in-out;
}

.light-mode .bar {
  background-color: var(--text-dark);
}

/* Hero Section */
.hero {
  height: 100vh;
  background-image: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('https://images.pexels.com/photos/1552242/pexels-photo-1552242.jpeg');
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
}

.hero-content {
  max-width: 800px;
  padding: var(--spacing-xl);
}

.hero-title {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
  color: var(--text-light);
}

.hero-subtitle {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-xl);
  color: var(--text-light);
}

.btn {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-lg);
  background-color: var(--primary-color);
  color: var(--text-light);
  border: none;
  border-radius: var(--border-radius-md);
  font-weight: 600;
  cursor: pointer;
  transition: background-color var(--transition-speed);
}

.btn:hover {
  background-color: #1a9b94;
}

.btn-secondary {
  background-color: var(--secondary-color);
}

.btn-secondary:hover {
  background-color: #e67e00;
}

/* About Section */
.about-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
}

.about-text {
  line-height: 1.8;
}

.about-text h2 {
  font-size: 2rem;
  margin-bottom: var(--spacing-lg);
  color: var(--primary-color);
}

.about-image img {
  border-radius: var(--border-radius-lg);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

/* Equipment Section */
.equipment-section {
  padding: var(--spacing-xl) 0;
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: var(--spacing-xl);
  color: var(--primary-color);
}

.equipment-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.equipment-card {
  background-color: rgba(255, 255, 255, 0.05);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  transition: transform var(--transition-speed);
}

.light-mode .equipment-card {
  background-color: rgba(0, 0, 0, 0.05);
}

.equipment-card:hover {
  transform: translateY(-5px);
}

.equipment-image {
  height: 250px;
  overflow: hidden;
}

.equipment-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-speed);
}

.equipment-card:hover .equipment-image img {
  transform: scale(1.05);
}

.equipment-info {
  padding: var(--spacing-lg);
}

.equipment-title {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
  color: var(--primary-color);
}

.equipment-description {
  margin-bottom: var(--spacing-md);
}

.equipment-variations {
  margin-top: var(--spacing-md);
}

.equipment-variations h4 {
  color: var(--secondary-color);
  margin-bottom: var(--spacing-sm);
}

/* Trainers Section */
.trainers-section {
  padding: var(--spacing-xl) 0;
}

.trainer-card {
  background-color: rgba(255, 255, 255, 0.05);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  text-align: center;
  transition: transform var(--transition-speed);
}

.light-mode .trainer-card {
  background-color: rgba(0, 0, 0, 0.05);
}

.trainer-card:hover {
  transform: translateY(-5px);
}

.trainer-image {
  height: 300px;
  overflow: hidden;
}

.trainer-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.trainer-info {
  padding: var(--spacing-lg);
}

.trainer-name {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
  color: var(--primary-color);
}

.trainer-specialty {
  color: var(--secondary-color);
  margin-bottom: var(--spacing-md);
}

.social-icons {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
}

.social-icon {
  color: var(--text-light);
  font-size: 1.2rem;
  transition: color var(--transition-speed);
}

.light-mode .social-icon {
  color: var(--text-dark);
}

.social-icon:hover {
  color: var(--primary-color);
}

/* BMI Calculator */
.bmi-calculator {
  background-color: rgba(255, 255, 255, 0.05);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-xl);
  max-width: 600px;
  margin: 0 auto;
}

.light-mode .bmi-calculator {
  background-color: rgba(0, 0, 0, 0.05);
}

.bmi-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
}

.form-input {
  width: 100%;
  padding: var(--spacing-md);
  border-radius: var(--border-radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.1);
  background-color: rgba(255, 255, 255, 0.05);
  color: var(--text-light);
}

.light-mode .form-input {
  border: 1px solid rgba(0, 0, 0, 0.1);
  background-color: rgba(0, 0, 0, 0.05);
  color: var(--text-dark);
}

.bmi-result {
  margin-top: var(--spacing-lg);
  text-align: center;
}

.result-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-color);
}

.result-message {
  margin-top: var(--spacing-sm);
}

/* Contact Form */
.contact-form {
  background-color: rgba(255, 255, 255, 0.05);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-xl);
  max-width: 800px;
  margin: 0 auto;
}

.light-mode .contact-form {
  background-color: rgba(0, 0, 0, 0.05);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
}

.form-textarea {
  width: 100%;
  padding: var(--spacing-md);
  border-radius: var(--border-radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.1);
  background-color: rgba(255, 255, 255, 0.05);
  color: var(--text-light);
  min-height: 150px;
  resize: vertical;
}

.light-mode .form-textarea {
  border: 1px solid rgba(0, 0, 0, 0.1);
  background-color: rgba(0, 0, 0, 0.05);
  color: var(--text-dark);
}

.form-error {
  color: var(--error-color);
  font-size: 0.85rem;
  margin-top: var(--spacing-xs);
  display: none;
}

.form-group.error .form-input,
.form-group.error .form-textarea {
  border-color: var(--error-color);
}

.form-group.error .form-error {
  display: block;
}

.form-group.success .form-input,
.form-group.success .form-textarea {
  border-color: var(--success-color);
}

/* Footer */
.footer {
  background-color: rgba(0, 0, 0, 0.8);
  padding: var(--spacing-xl) 0;
  margin-top: var(--spacing-xxl);
}

.light-mode .footer {
  background-color: rgba(0, 0, 0, 0.1);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
}

.footer-column h3 {
  color: var(--primary-color);
  margin-bottom: var(--spacing-md);
  font-size: 1.5rem;
}

.footer-links li {
  margin-bottom: var(--spacing-sm);
}

.footer-links a {
  color: var(--text-light);
  transition: color var(--transition-speed);
}

.light-mode .footer-links a {
  color: var(--text-dark);
}

.footer-links a:hover {
  color: var(--primary-color);
}

.footer-contact p {
  margin-bottom: var(--spacing-sm);
  display: flex;
  align-items: center;
}

.footer-contact i {
  margin-right: var(--spacing-sm);
  color: var(--primary-color);
}

.footer-bottom {
  margin-top: var(--spacing-xl);
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.light-mode .footer-bottom {
  border-top: 1px solid rgba(0, 0, 0, 0.1);
}

/* Testimonials */
.testimonials-section {
  padding: var(--spacing-xl) 0;
}

.testimonials-container {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  overflow: hidden;
}

.testimonial-slide {
  background-color: rgba(255, 255, 255, 0.05);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-xl);
  text-align: center;
  display: none;
}

.light-mode .testimonial-slide {
  background-color: rgba(0, 0, 0, 0.05);
}

.testimonial-slide.active {
  display: block;
  animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
  0% { opacity: 0; }
  100% { opacity: 1; }
}

.testimonial-text {
  font-style: italic;
  margin-bottom: var(--spacing-lg);
  line-height: 1.8;
}

.testimonial-author {
  font-weight: 600;
  color: var(--primary-color);
}

.testimonial-nav {
  display: flex;
  justify-content: center;
  margin-top: var(--spacing-lg);
}

.testimonial-btn {
  background: none;
  border: none;
  color: var(--text-light);
  font-size: 1.5rem;
  cursor: pointer;
  padding: var(--spacing-sm);
  transition: color var(--transition-speed);
}

.light-mode .testimonial-btn {
  color: var(--text-dark);
}

.testimonial-btn:hover {
  color: var(--primary-color);
}

.testimonial-dots {
  display: flex;
  justify-content: center;
  margin-top: var(--spacing-md);
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.3);
  margin: 0 var(--spacing-xs);
  cursor: pointer;
  transition: background-color var(--transition-speed);
}

.light-mode .dot {
  background-color: rgba(0, 0, 0, 0.3);
}

.dot.active {
  background-color: var(--primary-color);
}

/* Workout Timer */
.workout-timer {
  background-color: rgba(255, 255, 255, 0.05);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-xl);
  max-width: 400px;
  margin: 0 auto;
  text-align: center;
}

.light-mode .workout-timer {
  background-color: rgba(0, 0, 0, 0.05);
}

.timer-display {
  font-size: 3rem;
  font-weight: 700;
  color: var(--primary-color);
  margin: var(--spacing-lg) 0;
}

.timer-controls {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
}

.timer-btn {
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--primary-color);
  color: var(--text-light);
  border: none;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: background-color var(--transition-speed);
}

.timer-btn:hover {
  background-color: #1a9b94;
}

.timer-btn.reset {
  background-color: var(--error-color);
}

.timer-btn.reset:hover {
  background-color: #e04848;
}

/* Gallery */
.gallery-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--spacing-md);
}

.gallery-item {
  position: relative;
  height: 250px;
  overflow: hidden;
  border-radius: var(--border-radius-md);
  cursor: pointer;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-speed);
}

.gallery-item:hover img {
  transform: scale(1.05);
}

.gallery-item-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-speed);
}

.gallery-item:hover .gallery-item-overlay {
  opacity: 1;
}

.gallery-item-title {
  color: var(--text-light);
  font-size: 1.2rem;
  text-align: center;
  padding: 0 var(--spacing-md);
}

.gallery-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.9);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1001;
}

.gallery-modal.active {
  display: flex;
}

.modal-content {
  position: relative;
  max-width: 80%;
  max-height: 80%;
}

.modal-image {
  max-width: 100%;
  max-height: 80vh;
  border-radius: var(--border-radius-md);
}

.modal-close {
  position: absolute;
  top: -40px;
  right: 0;
  color: var(--text-light);
  font-size: 2rem;
  cursor: pointer;
  transition: color var(--transition-speed);
}

.modal-close:hover {
  color: var(--primary-color);
}

.modal-nav {
  position: absolute;
  top: 50%;
  width: 100%;
  display: flex;
  justify-content: space-between;
  transform: translateY(-50%);
}

.modal-btn {
  background: none;
  border: none;
  color: var(--text-light);
  font-size: 2rem;
  cursor: pointer;
  padding: var(--spacing-md);
  transition: color var(--transition-speed);
}

.modal-btn:hover {
  color: var(--primary-color);
}

/* Back to top button */
.back-to-top {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background-color: var(--primary-color);
  color: var(--text-light);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  cursor: pointer;
  transition: background-color var(--transition-speed), opacity var(--transition-speed);
  opacity: 0;
  visibility: hidden;
  z-index: 999;
}

.back-to-top.active {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background-color: #1a9b94;
}

/* Responsive styles */
@media (max-width: 992px) {
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-subtitle {
    font-size: 1.25rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
}

@media (max-width: 768px) {
  .hamburger {
    display: block;
  }
  
  .nav-menu {
    position: fixed;
    left: -100%;
    top: 70px;
    flex-direction: column;
    background-color: rgba(0, 0, 0, 0.9);
    width: 100%;
    text-align: center;
    transition: 0.3s;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    padding: var(--spacing-lg) 0;
  }
  
  .light-mode .nav-menu {
    background-color: rgba(255, 255, 255, 0.9);
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .nav-item {
    margin: var(--spacing-md) 0;
  }
  
  .hamburger.active .bar:nth-child(2) {
    opacity: 0;
  }
  
  .hamburger.active .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  
  .hamburger.active .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
  
  .bmi-form {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 576px) {
  .hero-content {
    padding: var(--spacing-md);
  }
  
  .section-title {
    font-size: 1.75rem;
  }
  
  .equipment-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .footer-contact p {
    justify-content: center;
  }
}