:root {
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --bg-color: #f3f4f6;
  --card-bg: #ffffff;
  --text-color: #1f2937;
  --text-muted: #6b7280;
  --border-color: #e5e7eb;
}

body {
  font-family: "Inter", sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  margin: 0;
  padding: 0;
  display: block;
  min-height: 100vh;
}

#app {
  width: 100%;
}

.auth-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 80vh;
}

.auth-card {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: 1rem;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  width: 100%;
  max-width: 400px;
}

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

.navbar {
  background: var(--card-bg);
  padding: 1rem 2rem;
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

.navbar .logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-user {
  color: var(--text-color);
  font-weight: 500;
  margin-right: 0.5rem;
}

.nav-links button {
  background: none;
  border: none;
  margin-left: 1rem;
  cursor: pointer;
  font-weight: 500;
  color: var(--text-muted);
}

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

.btn-settings {
  border: 1px solid var(--border-color);
  border-radius: 0.375rem;
  padding: 0.35rem 0.75rem;
  background-color: #f9fafb;
}

.btn-logout {
  color: #ef4444 !important;
}

.tabs {
  display: flex;
  margin-bottom: 1.5rem;
  border-bottom: 2px solid var(--border-color);
  justify-content: center;
}

.tab {
  flex: 1;
  background: none;
  border: none;
  padding: 10px;
  cursor: pointer;
  font-weight: 600;
  color: var(--text-muted);
}

.tab.active {
  color: var(--primary);
  border-bottom: 2px solid var(--primary);
  margin-bottom: -2px;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  font-size: 1rem;
  box-sizing: border-box;
}

.btn-primary {
  width: 100%;
  padding: 0.75rem;
  background-color: var(--primary);
  color: white;
  border: none;
  border-radius: 0.5rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s;
}

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

.btn-secondary {
  padding: 0.5rem 1rem;
  background-color: white;
  border: 1px solid var(--border-color);
  border-radius: 0.375rem;
  cursor: pointer;
}

.btn-danger {
  background-color: #fee2e2;
  color: #b91c1c;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 0.375rem;
  cursor: pointer;
}

.card {
  background: var(--card-bg);
  border-radius: 0.75rem;
  padding: 1.5rem;
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
  margin-bottom: 1.5rem;
}

.grid-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1.5rem;
}

@media (max-width: 768px) {
  .grid-layout {
    grid-template-columns: 1fr;
  }
}

.breakdown-list div {
  display: flex;
  justify-content: space-between;
  padding: 0.5rem 0;
  border-bottom: 1px dashed var(--border-color);
}

.total-price {
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  color: var(--primary);
  margin: 1rem 0;
}

.machine-summary {
  margin-top: 1rem;
  padding: 1rem;
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  background-color: #f9fafb;
}

.machine-summary-title {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.machine-summary-details {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.75rem;
}

.machine-summary-details span {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.machine-summary-details strong {
  display: block;
  font-size: 1rem;
  color: var(--text-color);
}

.machine-summary.is-empty {
  background: #fff;
  border-style: dashed;
}

.machine-summary.is-empty strong {
  color: var(--text-muted);
}

.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 100;
}

.modal-content {
  background: white;
  padding: 2rem;
  border-radius: 1rem;
  width: 90%;
  max-width: 500px;
}

.close {
  float: right;
  font-size: 1.5rem;
  cursor: pointer;
}

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

.animate-in {
  animation: fadeIn 0.5s ease-in-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

#landing-container {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  text-align: center;
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  padding: 2rem;
}

.landing-content {
  background: white;
  padding: 3rem;
  border-radius: 1rem;
  box-shadow:
    0 20px 25px -5px rgba(0, 0, 0, 0.1),
    0 10px 10px -5px rgba(0, 0, 0, 0.04);
  max-width: 800px;
}

.landing-content h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
  color: var(--primary);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
  text-align: left;
}

.feature-item {
  background: #f9fafb;
  padding: 1rem;
  border-radius: 0.5rem;
  border-left: 4px solid var(--primary);
}

.feature-item h3 {
  margin-top: 0;
  color: var(--text-color);
}

.cta-group {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-top: 2rem;
}

.btn-large {
  padding: 1rem 2rem;
  font-size: 1.2rem;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: transform 0.2s;
}

.btn-large:hover {
  transform: scale(1.05);
}

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

.machine-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.machine-card {
  border-top: 4px solid var(--primary);
}

.machine-specs {
  display: flex;
  justify-content: space-between;
  margin-top: 1rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-content {
  background: white;
  padding: 2rem;
  border-radius: 0.5rem;
  width: 90%;
  max-width: 500px;
  position: relative;
  animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
  from {
    transform: translateY(-50px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.close-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-size: 1.5rem;
  cursor: pointer;
  background: none;
  border: none;
}

.alert {
  padding: 1rem;
  border-radius: 0.5rem;
  margin-bottom: 1rem;
}

.alert-warning {
  background-color: #fff3cd;
  color: #856404;
  border: 1px solid #ffeeba;
}