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

:root {
  /* Colors */
  --bg-primary: #0b0f19;
  --bg-secondary: #151c2c;
  --bg-tertiary: #1f293d;
  --text-primary: #ffffff;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --accent: #f97316; /* Amber/orange - gym vibe */
  --accent-hover: #ea580c;
  --accent-light: rgba(249, 115, 22, 0.1);
  
  --success: #10b981;
  --success-light: rgba(16, 185, 129, 0.1);
  --error: #ef4444;
  --error-light: rgba(239, 68, 68, 0.1);
  --warning: #f59e0b;
  --warning-light: rgba(245, 158, 11, 0.1);
  
  /* Borders & Radius */
  --border-color: #2e3a52;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  
  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-glow: 0 0 20px rgba(249, 115, 22, 0.2);
}

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* Navigation Header */
.nav-header {
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 0 2rem;
  min-height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-md);
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-primary);
}

.logo-icon {
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  color: white;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.25rem;
  font-family: 'Outfit', sans-serif;
  box-shadow: var(--shadow-glow);
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 800;
  background: linear-gradient(to right, #ffffff, #94a3b8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-text span {
  color: var(--accent);
  -webkit-text-fill-color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 1rem;
  list-style: none;
  align-items: center;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

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

.nav-links li.active a {
  color: var(--accent);
  background-color: var(--accent-light);
  font-weight: 600;
}

.nav-user {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
}

.nav-user-name {
  color: var(--text-primary);
  font-family: 'Outfit', sans-serif;
  font-size: 0.95rem;
  font-weight: 800;
  max-width: 140px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.nav-user-role {
  color: var(--text-secondary);
  font-size: 0.75rem;
  white-space: nowrap;
}

/* Layout Main Container */
.main-content {
  flex: 1;
  padding: 2rem;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}

/* Common UI Elements */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-family: 'Outfit', sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: var(--transition-fast);
  text-decoration: none;
}

.btn:disabled,
button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn-primary {
  background-color: var(--accent);
  color: #ffffff;
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
}

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

.btn-secondary:hover {
  background-color: var(--border-color);
  color: #ffffff;
}

.btn-danger {
  background-color: var(--error);
  color: #ffffff;
}

.btn-danger:hover {
  background-color: #dc2626;
}

.btn-sm {
  padding: 0.4rem 0.8rem;
  font-size: 0.85rem;
}

/* Cards */
.card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
}

.card-header {
  margin-bottom: 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Forms */
.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  transition: var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-light);
}

/* Tables */
.table-container {
  overflow-x: auto;
}

.table-container table {
  min-width: 760px;
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

th {
  background-color: var(--bg-tertiary);
  padding: 1rem;
  font-family: 'Outfit', sans-serif;
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--border-color);
}

td {
  padding: 1rem;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.95rem;
}

tr:last-child td {
  border-bottom: none;
}

tr:hover td {
  background-color: rgba(255, 255, 255, 0.02);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 4px;
}

.badge-success {
  background-color: var(--success-light);
  color: var(--success);
}

.badge-danger {
  background-color: var(--error-light);
  color: var(--error);
}

.badge-warning {
  background-color: var(--warning-light);
  color: var(--warning);
}

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition-normal);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-container {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 500px;
  max-height: 92vh;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  transform: translateY(20px);
  transition: var(--transition-normal);
}

.modal-overlay.active .modal-container {
  transform: translateY(0);
}

.modal-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
}

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

.modal-body {
  padding: 1.5rem;
  overflow-y: auto;
  max-height: calc(92vh - 150px);
}

.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  z-index: 10000;
}

.toast {
  background-color: var(--bg-secondary);
  border-left: 4px solid var(--accent);
  color: var(--text-primary);
  padding: 1rem 1.5rem;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 300px;
  transform: translateX(120%);
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.toast.show {
  transform: translateX(0);
}

.toast-success { border-left-color: var(--success); }
.toast-error { border-left-color: var(--error); }
.toast-warning { border-left-color: var(--warning); }
.toast-info { border-left-color: var(--accent); }

.toast-label {
  color: var(--text-secondary);
  font-family: 'Outfit', sans-serif;
  font-size: 0.72rem;
  font-weight: 800;
}

/* Utility Styles */
.text-center { text-align: center; }
.text-right { text-align: right; }
.flex { display: flex; }
.justify-between { justify-content: space-between; }
.align-center { align-items: center; }
.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.w-100 { width: 100%; }

/* Scrollbars */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

@media (max-width: 1100px) {
  .nav-header {
    align-items: flex-start;
    flex-wrap: wrap;
    height: auto;
    padding: 0.85rem 1rem;
  }

  .nav-links {
    order: 3;
    width: 100%;
    overflow-x: auto;
    gap: 0.5rem;
    padding-bottom: 0.2rem;
  }

  .nav-links a {
    white-space: nowrap;
  }
}

@media (max-width: 700px) {
  .main-content {
    padding: 1rem;
  }

  .logo-text {
    font-size: 1.1rem;
  }

  .logo-icon {
    width: 34px;
    height: 34px;
    border-radius: var(--radius-sm);
    font-size: 1rem;
  }

  .nav-user {
    width: 100%;
    justify-content: space-between;
  }

  .card {
    padding: 1rem;
    border-radius: var(--radius-sm);
  }

  .card-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.75rem;
  }

  .btn {
    padding: 0.7rem 1rem;
  }

  .modal-container {
    width: calc(100% - 1rem);
    border-radius: var(--radius-sm);
  }

  .modal-header,
  .modal-body,
  .modal-footer {
    padding: 1rem;
  }

  .modal-footer {
    flex-wrap: wrap;
  }

  .toast-container {
    left: 1rem;
    right: 1rem;
    bottom: 1rem;
  }

  .toast {
    min-width: 0;
    width: 100%;
  }
}