:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --primary-light: #818cf8;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --dark: #1e293b;
  --dark-light: #334155;
  --gray: #64748b;
  --gray-light: #cbd5e1;
  --bg: #f8fafc;
  --white: #ffffff;
  --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --radius: 16px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'Cairo', 'Tajawal', sans-serif;
  background: var(--bg);
  color: var(--dark);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.app-container {
  display: flex;
  min-height: 100vh;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  position: relative;
}

.app-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 50%, rgba(120, 119, 198, 0.3), transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(252, 70, 107, 0.3), transparent 50%),
    radial-gradient(circle at 40% 20%, rgba(99, 102, 241, 0.2), transparent 50%);
  pointer-events: none;
}

/* Sidebar */
.sidebar {
  width: 280px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-left: 1px solid rgba(255, 255, 255, 0.3);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  position: relative;
  z-index: 10;
  animation: slideInRight 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 3rem;
  padding-bottom: 2rem;
  border-bottom: 2px solid var(--gray-light);
}

.logo-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  box-shadow: 0 8px 16px rgba(99, 102, 241, 0.3);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.logo-icon svg {
  width: 28px;
  height: 28px;
}

.logo h1 {
  font-size: 1.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-menu {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border-radius: 12px;
  color: var(--gray);
  text-decoration: none;
  transition: var(--transition);
  font-weight: 500;
  position: relative;
  overflow: hidden;
}

.nav-item::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  transition: width 0.4s ease;
  z-index: -1;
}

.nav-item:hover::before,
.nav-item.active::before {
  width: 100%;
}

.nav-item:hover,
.nav-item.active {
  color: white;
  transform: translateX(-5px);
}

.nav-item svg {
  width: 22px;
  height: 22px;
  stroke-width: 2;
}

.sidebar-footer {
  margin-top: 2rem;
}

.import-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 1rem;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  border: none;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
  font-family: inherit;
}

.import-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(99, 102, 241, 0.5);
}

.import-btn svg {
  width: 20px;
  height: 20px;
}

/* Main Content */
.main-content {
  flex: 1;
  padding: 2rem;
  position: relative;
  z-index: 5;
  animation: fadeIn 0.8s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.content-header {
  margin-bottom: 2rem;
  animation: slideDown 0.6s ease;
}

@keyframes slideDown {
  from { transform: translateY(-20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.header-title h2 {
  font-size: 2.5rem;
  font-weight: 800;
  color: white;
  margin-bottom: 0.5rem;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header-title p {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.9);
}

/* Search Section */
.search-section {
  margin-bottom: 2rem;
  animation: slideUp 0.7s ease 0.2s both;
}

@keyframes slideUp {
  from { transform: translateY(30px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.search-box {
  display: flex;
  background: white;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  max-width: 600px;
  transition: var(--transition);
}

.search-box:focus-within {
  transform: translateY(-2px);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.search-box input {
  flex: 1;
  padding: 1.25rem 1.5rem;
  border: none;
  font-size: 1.125rem;
  font-family: inherit;
  outline: none;
  color: var(--dark);
}

.search-box input::placeholder {
  color: var(--gray-light);
}

.search-box button {
  padding: 1.25rem 1.75rem;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border: none;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.search-box button:hover {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
}

.search-box button svg {
  width: 24px;
  height: 24px;
  stroke: white;
}

/* Results Section */
.results-section {
  animation: slideUp 0.8s ease 0.3s both;
}

.results-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.results-header h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--dark);
}

.results-count {
  padding: 0.5rem 1rem;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: white;
  border-radius: 20px;
  font-weight: 600;
  font-size: 0.875rem;
}

.appointments-list {
  display: grid;
  gap: 1.5rem;
}

.appointment-card {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border-right: 4px solid transparent;
  animation: cardIn 0.5s ease backwards;
}

@keyframes cardIn {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(20px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.appointment-card:nth-child(1) { animation-delay: 0.1s; }
.appointment-card:nth-child(2) { animation-delay: 0.2s; }
.appointment-card:nth-child(3) { animation-delay: 0.3s; }
.appointment-card:nth-child(4) { animation-delay: 0.4s; }

.appointment-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.appointment-card.status-pending { border-right-color: var(--warning); }
.appointment-card.status-not_done { border-right-color: var(--danger); }
.appointment-card.status-under_delivery { border-right-color: var(--primary); }
.appointment-card.status-delivered { border-right-color: var(--success); }

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: start;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--gray-light);
}

.card-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.customer-avatar {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 1.25rem;
}

.customer-info h4 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 0.25rem;
}

.customer-info p {
  color: var(--gray);
  font-size: 0.875rem;
}

.status-badge {
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-weight: 600;
  font-size: 0.875rem;
  text-align: center;
  min-width: 100px;
}

.status-badge.pending {
  background: rgba(245, 158, 11, 0.1);
  color: var(--warning);
}

.status-badge.not_done {
  background: rgba(239, 68, 68, 0.1);
  color: var(--danger);
}

.status-badge.under_delivery {
  background: rgba(99, 102, 241, 0.1);
  color: var(--primary);
}

.status-badge.delivered {
  background: rgba(16, 185, 129, 0.1);
  color: var(--success);
}

.card-body {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.info-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.info-label {
  font-size: 0.75rem;
  color: var(--gray);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.info-value {
  font-size: 1rem;
  color: var(--dark);
  font-weight: 500;
}

.card-footer {
  display: flex;
  gap: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--gray-light);
}

.btn {
  flex: 1;
  padding: 0.875rem 1.5rem;
  border-radius: 10px;
  border: none;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
  font-size: 0.9375rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(99, 102, 241, 0.4);
}

/* States */
.loading-state,
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 2rem;
  text-align: center;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.spinner {
  width: 50px;
  height: 50px;
  border: 4px solid rgba(99, 102, 241, 0.1);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 1rem;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.empty-state svg {
  width: 200px;
  height: 200px;
  margin-bottom: 1.5rem;
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.empty-state h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 0.5rem;
}

.empty-state p {
  color: var(--gray);
  font-size: 1rem;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(10px);
  z-index: 1000;
  animation: fadeIn 0.3s ease;
}

.modal.active {
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-content {
  background: white;
  border-radius: var(--radius);
  width: 90%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  animation: modalSlide 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes modalSlide {
  from {
    transform: scale(0.9) translateY(50px);
    opacity: 0;
  }
  to {
    transform: scale(1) translateY(0);
    opacity: 1;
  }
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--gray-light);
}

.modal-header h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--dark);
}

.modal-close {
  width: 36px;
  height: 36px;
  border: none;
  background: var(--gray-light);
  border-radius: 50%;
  font-size: 1.5rem;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--dark);
}

.modal-close:hover {
  background: var(--danger);
  color: white;
  transform: rotate(90deg);
}

.modal-body {
  padding: 2rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--dark);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 2px solid var(--gray-light);
  border-radius: 10px;
  font-family: inherit;
  font-size: 1rem;
  transition: var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-group small {
  display: block;
  margin-top: 0.5rem;
  color: var(--gray);
  font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 768px) {
  .app-container {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
    padding: 1.5rem 1rem;
  }

  .main-content {
    padding: 1.5rem 1rem;
  }

  .header-title h2 {
    font-size: 2rem;
  }

  .card-body {
    grid-template-columns: 1fr;
  }

  .card-footer {
    flex-direction: column;
  }
}