/* 
   IceBerk - Apple-inspired Minimalist CSS
   Clean, lightweight design with subtle animations
*/

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

/* Base Styles */
:root {
  --primary-color: #00ff66;
  --primary-dark: #00cc52;
  --text-color: #333333;
  --light-text: #666666;
  --background: #f5f5f7;
  --card-bg: #ffffff;
  --border-radius: 12px;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  --transition: all 0.3s ease;
  --success: #34c759;
  --error: #ff3b30;
  --warning: #ff9500;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--background);
  color: var(--text-color);
  line-height: 1.6;
  padding-bottom: 80px;
  min-height: 100vh;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  font-weight: 600;
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

h1 {
  font-size: 2.5rem;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 1.75rem;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.25rem;
}

p {
  margin-bottom: 1rem;
}

/* Card Styles */
.card {
  background-color: var(--card-bg);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(0, 0, 0, 0.1);
}

/* Section Styles */
.section {
  padding: 1.5rem;
  max-width: 600px;
  margin: 0 auto;
  min-height: calc(100vh - 80px);
}

/* Auth Section */
.auth-container {
  text-align: center;
  padding: 2rem;
}

.auth-tabs {
  display: flex;
  justify-content: center;
  margin: 1.5rem 0;
}

.auth-tab {
  background: none;
  border: none;
  font-size: 1rem;
  padding: 0.5rem 1.5rem;
  margin: 0 0.5rem;
  color: var(--light-text);
  cursor: pointer;
  position: relative;
  transition: var(--transition);
}

.auth-tab.active {
  color: var(--primary-color);
  font-weight: 600;
}

.auth-tab.active::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--primary-color);
  border-radius: 2px;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* Input Styles */
input {
  width: 100%;
  padding: 0.875rem;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  font-size: 1rem;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  transition: var(--transition);
  outline: none;
  -webkit-appearance: none;
}

input:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(0, 255, 102, 0.2);
}

input::placeholder {
  color: #aaa;
}

/* Button Styles */
button {
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: 8px;
  padding: 0.875rem 1.5rem;
  font-size: 1rem;
  font-weight: 500;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  cursor: pointer;
  transition: var(--transition);
}

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

/* Bottom Navigation */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: var(--card-bg);
  display: flex;
  justify-content: space-around;
  padding: 0.75rem 0;
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
  z-index: 100;
}

.nav-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: none;
  border: none;
  color: var(--light-text);
  font-size: 0.75rem;
  padding: 0.5rem;
  transition: var(--transition);
}

.nav-btn i {
  font-size: 1.25rem;
  margin-bottom: 0.25rem;
}

.nav-btn.active {
  color: var(--primary-color);
}

/* User Info */
.user-info {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1.5rem;
}

.balance {
  font-size: 1.25rem;
  margin-top: 0.5rem;
}

/* Description Card */
.description-card {
  border-left: 4px solid var(--primary-color);
}

.description-header {
  display: flex;
  align-items: center;
  margin-bottom: 1rem;
}

.description-header i {
  color: var(--primary-color);
  font-size: 1.5rem;
  margin-right: 0.75rem;
}

.version-info {
  display: flex;
  justify-content: space-between;
  margin-bottom: 1rem;
  font-size: 0.875rem;
}

.version-tag {
  background-color: #f0f0f0;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-weight: 500;
}

.update-date {
  color: var(--light-text);
}

.feature-list {
  margin-top: 1.5rem;
}

.feature-item {
  display: flex;
  align-items: center;
  margin-bottom: 0.75rem;
}

.feature-item i {
  color: var(--primary-color);
  margin-right: 0.75rem;
  width: 1.5rem;
  text-align: center;
}

/* Referral Section */
.referral-info {
  text-align: center;
}

#referral-code {
  font-weight: 600;
  color: var(--primary-color);
  padding: 0.5rem;
  background-color: #f0f0f0;
  border-radius: 4px;
  margin: 0 0.5rem;
}

/* Withdrawal Section */
#withdrawal-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* Admin Section */
.admin-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  text-align: center;
  padding: 1rem;
}

.stat-card p {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--primary-color);
}

/* Leaderboard */
.leaderboard-tabs {
  display: flex;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.leaderboard-tab {
  background: none;
  border: none;
  font-size: 1rem;
  padding: 0.5rem 1.5rem;
  margin: 0 0.5rem;
  color: var(--light-text);
  cursor: pointer;
  position: relative;
  transition: var(--transition);
}

.leaderboard-tab.active {
  color: var(--primary-color);
  font-weight: 600;
}

.leaderboard-tab.active::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--primary-color);
  border-radius: 2px;
}

/* Custom Alert */
#custom-alert {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.alert-content {
  width: 90%;
  max-width: 400px;
  text-align: center;
}

/* Utility Classes */
.hidden {
  display: none !important;
}

/* Footer */
.footer {
  background-color: var(--card-bg);
  padding: 1.5rem;
  text-align: center;
  font-size: 0.875rem;
  color: var(--light-text);
  margin-top: 2rem;
}

.footer-bottom {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid #eee;
}

.standard-link {
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition);
}

.standard-link:hover {
  text-decoration: underline;
}

/* Tasks Container */
#tasks-container {
  display: grid;
  gap: 1.25rem;
}

.task-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem;
  border-radius: var(--border-radius);
  background-color: var(--card-bg);
  box-shadow: var(--shadow);
  transition: var(--transition);
  border-left: 3px solid var(--primary-color);
}

.task-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.task-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.task-title {
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--text-color);
}

.task-description {
  color: var(--light-text);
  font-size: 0.9rem;
  line-height: 1.4;
}

.task-reward {
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--primary-color);
  background-color: rgba(0, 255, 102, 0.1);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.task-reward i {
  font-size: 1rem;
}

.task-status {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.task-progress {
  height: 6px;
  background-color: #f0f0f0;
  border-radius: 3px;
  width: 100%;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background-color: var(--primary-color);
  border-radius: 3px;
  transition: width 0.3s ease;
}

.task-button {
  padding: 0.6rem 1.2rem;
  font-size: 0.9rem;
  border-radius: 8px;
  background-color: var(--primary-color);
  color: white;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.task-button:hover {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
}

.task-button.completed {
  background-color: var(--success);
  cursor: default;
}

.task-button.in-progress {
  background-color: var(--warning);
}

@media (max-width: 480px) {
  .task-card {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  
  .task-reward {
    align-self: flex-start;
  }
}

/* Responsive adjustments */
@media (max-width: 480px) {
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.5rem;
  }
  
  .section {
    padding: 1rem;
  }
  
  .card {
    padding: 1.25rem;
  }
  
  .nav-btn span {
    display: none;
  }
  
  .nav-btn i {
    font-size: 1.5rem;
    margin-bottom: 0;
  }
}

/* Animation for page transitions */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.section {
  animation: fadeIn 0.3s ease-out;
}
