/* style.css */
:root {
  --primary: #2196F3;
  --primary-dark: #1976D2;
  --secondary: #4CAF50;
  --secondary-dark: #388E3C;
  --light: #E3F2FD;
  --dark: #212121;
  --gray: #757575;
  --light-gray: #EEEEEE;
  --white: #FFFFFF;
  --shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Roboto', sans-serif;
}

body {
  background-color: var(--light);
  color: var(--dark);
  line-height: 1.6;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

header {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: var(--white);
  padding: 15px 0;
  position: relative;
}

.header-content {
  display: flex;
  align-items: center;
  border-radius: 15px;
  background-color: rgba(255, 255, 255, 0.15);
  padding: 10px 20px;
  margin: 0 20px;
}

.profile-pic {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  object-fit: cover;
  margin-right: 15px;
  border: 3px solid var(--white);
}

.header-title {
  font-size: 24px;
  font-weight: 700;
}

nav {
  background-color: var(--white);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 20px;
}

.logo {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
}

.nav-links {
  display: flex;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding-bottom: 5px;
}

.nav-links::-webkit-scrollbar {
  display: none;
}

.nav-links li {
  margin: 0 10px;
  white-space: nowrap;
}

.nav-links a {
  text-decoration: none;
  color: var(--dark);
  font-weight: 500;
  padding: 5px 10px;
  border-radius: 5px;
  transition: background-color 0.3s, color 0.3s;
}

.nav-links a:hover {
  background-color: var(--light);
  color: var(--primary);
}

.nav-links a.active {
  background-color: var(--primary);
  color: var(--white);
}

.burger-menu {
  display: none;
  cursor: pointer;
  font-size: 24px;
}

.progress-container {
  background-color: var(--white);
  border-radius: 10px;
  padding: 15px;
  margin: 20px 0;
  box-shadow: var(--shadow);
}

.progress-title {
  font-size: 18px;
  margin-bottom: 10px;
  color: var(--primary-dark);
}

.progress-bar {
  display: flex;
  justify-content: space-between;
  margin-bottom: 10px;
}

.progress-day {
  flex: 1;
  text-align: center;
  padding: 10px 0;
  border-radius: 5px;
  margin: 0 3px;
  font-weight: 500;
  font-size: 14px;
  transition: all 0.3s;
}

.progress-day.current {
  background-color: var(--primary);
  color: var(--white);
  box-shadow: var(--shadow);
  transform: scale(1.05);
}

.progress-day.completed {
  background-color: var(--secondary);
  color: var(--white);
}

.progress-day.upcoming {
  background-color: var(--light-gray);
  color: var(--gray);
}

.main-content {
  padding: 20px 0;
}

.day-title {
  font-size: 28px;
  color: var(--primary-dark);
  margin-bottom: 15px;
  text-align: center;
  position: relative;
}

.day-title::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background: linear-gradient(to right, var(--primary), var(--secondary));
  margin: 10px auto 0;
  border-radius: 2px;
}

.warmup-section {
  background-color: var(--white);
  border-radius: 10px;
  padding: 15px;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
}

.warmup-title {
  font-size: 20px;
  color: var(--primary-dark);
  margin-bottom: 10px;
}

.workout-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 20px;
  background-color: var(--white);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.workout-table thead {
  background-color: var(--primary);
  color: var(--white);
}

.workout-table th {
  padding: 12px 15px;
  text-align: left;
  font-weight: 600;
}

.workout-table tbody tr {
  border-bottom: 1px solid var(--light-gray);
}

.workout-table tbody tr:last-child {
  border-bottom: none;
}

.workout-table td {
  padding: 12px 15px;
  vertical-align: middle;
}

.exercise-name {
  font-weight: 600;
  color: var(--dark);
}

.demo-container {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.demo-video-container, .demo-image-container {
  border: 1px solid var(--light-gray);
  border-radius: 5px;
  overflow: hidden;
  position: relative;
  width: 100%;
  height: 100px;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: var(--light-gray);
}

.demo-placeholder {
  color: var(--gray);
  font-size: 14px;
  text-align: center;
}

.cardio-section {
  background-color: var(--white);
  border-radius: 10px;
  padding: 15px;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
}

.cardio-title {
  font-size: 20px;
  color: var(--secondary-dark);
  margin-bottom: 10px;
}

.notes-section {
  background-color: var(--white);
  border-radius: 10px;
  padding: 15px;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
}

.notes-title {
  font-size: 20px;
  color: var(--primary-dark);
  margin-bottom: 10px;
}

.notes-list {
  list-style-type: none;
}

.notes-list li {
  padding: 8px 0;
  border-bottom: 1px solid var(--light-gray);
}

.notes-list li:last-child {
  border-bottom: none;
}

.navigation-buttons {
  display: flex;
  justify-content: space-between;
  margin: 30px 0;
}

.nav-button {
  padding: 10px 20px;
  background-color: var(--primary);
  color: var(--white);
  border: none;
  border-radius: 5px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.3s;
  display: flex;
  align-items: center;
  gap: 5px;
}

.nav-button:hover {
  background-color: var(--primary-dark);
}

.nav-button.prev {
  background-color: var(--gray);
}

.nav-button.prev:hover {
  background-color: var(--dark);
}

.nav-button.home {
  background-color: var(--secondary);
}

.nav-button.home:hover {
  background-color: var(--secondary-dark);
}

footer {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: var(--white);
  padding: 20px 0;
  margin-top: 40px;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.social-icons {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 15px;
}

.social-icon {
  width: 40px;
  height: 40px;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  transition: background-color 0.3s;
}

.social-icon:hover {
  background-color: rgba(255, 255, 255, 0.4);
}

.social-icon i {
  font-size: 20px;
  color: var(--white);
}

.copyright {
  font-size: 14px;
  text-align: center;
}

/* Responsive styles */
@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    text-align: center;
  }
  
  .profile-pic {
    margin-right: 0;
    margin-bottom: 10px;
  }
  
  .nav-links {
    position: fixed;
    top: 60px;
    left: 0;
    flex-direction: column;
    width: 100%;
    background-color: var(--white);
    box-shadow: var(--shadow);
    padding: 10px 0;
    transform: translateY(-100%);
    transition: transform 0.3s;
    z-index: 99;
  }
  
  .nav-links.active {
    transform: translateY(0);
  }
  
  .nav-links li {
    margin: 10px 20px;
  }
  
  .burger-menu {
    display: block;
  }
  
  .workout-table {
    font-size: 14px;
  }
  
  .workout-table th, .workout-table td {
    padding: 8px 10px;
  }
  
  .navigation-buttons {
    flex-direction: column;
    gap: 10px;
  }
  
  .nav-button {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .header-title {
    font-size: 20px;
  }
  
  .progress-day {
    font-size: 12px;
    padding: 8px 0;
  }
  
  .day-title {
    font-size: 24px;
  }
}