:root {
  --bg-color: #0d1117;
  --surface-color: rgba(22, 27, 34, 0.7);
  --border-color: rgba(255, 255, 255, 0.1);
  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  --accent-color: #58a6ff;
  --accent-hover: #3182ce;
  --danger-color: #f85149;
  --success-color: #2ea043;
  --warning-color: #d29922;
  --glass-blur: 10px;
}

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

body {
  background-color: var(--bg-color);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  background-image: radial-gradient(circle at 15% 50%, rgba(88, 166, 255, 0.1), transparent 25%),
                    radial-gradient(circle at 85% 30%, rgba(46, 160, 67, 0.1), transparent 25%);
}

/* Glassmorphism Utilities */
.glass-panel, .glass-card {
  background: var(--surface-color);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--border-color);
}

.glass-card {
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.glass-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.mt-2 { margin-top: 1.5rem; }

/* Login Page */
.login-page {
  align-items: center;
  justify-content: center;
}

.login-card {
  width: 100%;
  max-width: 400px;
  text-align: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--accent-color);
  margin-bottom: 1rem;
}

.login-card h2 { margin-bottom: 0.5rem; }
.login-card p { color: var(--text-secondary); margin-bottom: 2rem; }

/* Dashboard Layout */
.dashboard-page {
  flex-direction: row;
}

.sidebar {
  width: 250px;
  height: 100vh;
  position: fixed;
  top: 0;
  left: 0;
  padding: 2rem 1rem;
  display: flex;
  flex-direction: column;
  z-index: 100;
}

.sidebar .logo {
  text-align: center;
  margin-bottom: 2rem;
}

.nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.nav-links a {
  display: block;
  padding: 0.75rem 1rem;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: 8px;
  transition: all 0.2s ease;
}

.nav-links a:hover, .nav-links a.active {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
}

.nav-links a.active {
  background: rgba(88, 166, 255, 0.1);
  color: var(--accent-color);
}

.content {
  flex: 1;
  margin-left: 250px;
  padding: 2rem;
  max-width: 1200px;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

.header-with-btn {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.page-section {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.page-section.active {
  opacity: 1;
  transform: translateY(0);
}

/* Forms & Inputs */
.form-group {
  margin-bottom: 1rem;
  text-align: left;
}

label {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

input, select {
  width: 100%;
  padding: 0.75rem;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--text-primary);
  font-size: 1rem;
  transition: border-color 0.2s ease;
}

input:focus, select:focus {
  outline: none;
  border-color: var(--accent-color);
}

.checkbox-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.checkbox-group input { width: auto; }
.checkbox-group label { margin-bottom: 0; }

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-block { width: 100%; }

.btn-primary {
  background-color: var(--accent-color);
  color: #fff;
}
.btn-primary:hover { background-color: var(--accent-hover); }

.btn-secondary {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
}
.btn-secondary:hover { background-color: rgba(255, 255, 255, 0.2); }

.btn-danger {
  background-color: transparent;
  color: var(--danger-color);
  border: 1px solid var(--danger-color);
}
.btn-danger:hover {
  background-color: var(--danger-color);
  color: #fff;
}

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

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

th {
  color: var(--text-secondary);
  font-weight: 500;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
}
.badge-success { background: rgba(46, 160, 67, 0.2); color: var(--success-color); }
.badge-danger { background: rgba(248, 81, 73, 0.2); color: var(--danger-color); }
.badge-warning { background: rgba(210, 153, 34, 0.2); color: var(--warning-color); }
.badge-neutral { background: rgba(255, 255, 255, 0.1); color: var(--text-secondary); }

/* Modals */
.modal {
  display: none;
  position: fixed;
  top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(0, 0, 0, 0.7);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}

.modal-content {
  width: 90%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-content h3 { margin-bottom: 1.5rem; }

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 1rem;
  margin-top: 2rem;
}

/* Dose Pattern Inputs */
.dose-inputs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.dose-input-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.dose-input-wrapper input {
  width: 60px;
  text-align: center;
}
.dose-input-wrapper span {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

.dose-plus { margin-top: 0.5rem; }

/* Medicine Items */
.medicine-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  margin-bottom: 0.5rem;
}

.med-name { font-weight: 600; }
.med-pattern { color: var(--text-secondary); font-size: 0.9rem; }

/* Toast */
#toast-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 2000;
}

.toast {
  background: var(--surface-color);
  backdrop-filter: blur(var(--glass-blur));
  border-left: 4px solid var(--accent-color);
  color: var(--text-primary);
  padding: 1rem 1.5rem;
  border-radius: 4px;
  margin-top: 10px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.5);
  animation: slideIn 0.3s ease forwards;
}

.toast.error { border-left-color: var(--danger-color); }
.toast.success { border-left-color: var(--success-color); }

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
  .dashboard-page { flex-direction: column; }
  
  .sidebar {
    width: 100%;
    height: auto;
    position: fixed;
    bottom: 0;
    top: auto;
    flex-direction: row;
    padding: 0.5rem;
    border-top: 1px solid var(--border-color);
    border-right: none;
    justify-content: space-around;
  }
  
  .sidebar .logo { display: none; }
  
  .nav-links {
    flex-direction: row;
    width: 100%;
    justify-content: space-around;
  }
  
  .nav-links a {
    padding: 0.5rem;
    font-size: 0.8rem;
    text-align: center;
  }
  
  .content {
    margin-left: 0;
    margin-bottom: 60px; /* Space for bottom nav */
    padding: 1rem;
  }
}