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

:root {
  --bg-primary: #0b0f19;
  --bg-card: rgba(17, 24, 39, 0.7);
  --border-card: rgba(255, 255, 255, 0.08);
  --color-text-main: #f3f4f6;
  --color-text-muted: #9ca3af;
  --color-accent-blue: #3b82f6;
  --color-accent-teal: #00d2ff;
  --gradient-main: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);
  --gradient-hover: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  --shadow-main: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  --border-radius: 16px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'Outfit', sans-serif;
  background-color: var(--bg-primary);
  color: var(--color-text-main);
  background-image: 
    radial-gradient(at 10% 20%, rgba(59, 130, 246, 0.15) 0px, transparent 50%),
    radial-gradient(at 90% 80%, rgba(0, 210, 255, 0.12) 0px, transparent 50%);
  background-attachment: fixed;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 3rem 1.5rem;
}

.container {
  width: 100%;
  max-width: 1100px;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* Header section styling */
header {
  text-align: center;
  margin-bottom: 1.5rem;
}

header h1 {
  font-size: 2.8rem;
  font-weight: 700;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.5rem;
}

header p {
  color: var(--color-text-muted);
  font-size: 1.1rem;
  font-weight: 400;
}

/* Glassmorphic Upload Card Container */
.upload-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-card);
  border-radius: var(--border-radius);
  padding: 2.5rem;
  box-shadow: var(--shadow-main);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  transition: var(--transition);
}

.upload-card:hover {
  border-color: rgba(0, 210, 255, 0.25);
  box-shadow: 0 8px 36px 0 rgba(0, 210, 255, 0.1);
}

/* Drag and Drop Zone */
.drop-zone {
  width: 100%;
  max-width: 600px;
  height: 200px;
  border: 2px dashed rgba(255, 255, 255, 0.25);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.02);
  transition: var(--transition);
}

.drop-zone:hover, .drop-zone.dragover {
  border-color: var(--color-accent-teal);
  background: rgba(0, 210, 255, 0.04);
}

.drop-zone svg {
  width: 50px;
  height: 50px;
  fill: none;
  stroke: var(--color-accent-teal);
  stroke-width: 1.5;
  transition: var(--transition);
}

.drop-zone:hover svg {
  transform: translateY(-5px);
}

.drop-zone p {
  font-size: 1rem;
  color: var(--color-text-muted);
}

.drop-zone span {
  color: var(--color-text-main);
  font-weight: 500;
  text-decoration: underline;
}

#file-input {
  display: none;
}

/* Selected File Preview banner */
.file-preview {
  display: none;
  align-items: center;
  gap: 0.75rem;
  background: rgba(255, 255, 255, 0.05);
  padding: 0.75rem 1.25rem;
  border-radius: 30px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.95rem;
}

.file-preview .file-icon {
  width: 20px;
  height: 20px;
  fill: #ff4a4a;
}

.file-preview .remove-btn {
  cursor: pointer;
  color: var(--color-text-muted);
  font-weight: bold;
  font-size: 1.1rem;
  transition: var(--transition);
}

.file-preview .remove-btn:hover {
  color: #ff4a4a;
}

/* Parse Button */
.btn-submit {
  background: var(--gradient-main);
  border: none;
  color: #fff;
  font-family: inherit;
  font-size: 1.05rem;
  font-weight: 600;
  padding: 0.8rem 2.5rem;
  border-radius: 30px;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(0, 242, 254, 0.3);
  transition: var(--transition);
  opacity: 0.5;
  pointer-events: none;
}

.btn-submit.active {
  opacity: 1;
  pointer-events: auto;
}

.btn-submit.active:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 242, 254, 0.5);
  background: var(--gradient-hover);
}

/* Progress/Loader animation */
.loader-container {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  margin-top: 1rem;
}

.spinner {
  width: 50px;
  height: 50px;
  border: 4px solid rgba(255, 255, 255, 0.1);
  border-top-color: var(--color-accent-teal);
  border-radius: 50%;
  animation: spin 1s infinite linear;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.loader-container p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* Dynamic Results Table Container */
.results-section {
  display: none;
  flex-direction: column;
  gap: 1.5rem;
  animation: fadeInUp 0.5s ease-out forwards;
}

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

.results-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.results-header h2 {
  font-size: 1.5rem;
  font-weight: 600;
}

.results-count {
  font-size: 0.9rem;
  background: rgba(255, 255, 255, 0.08);
  padding: 0.4rem 0.8rem;
  border-radius: 20px;
  color: var(--color-text-muted);
}

.table-wrapper {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-card);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-main);
}

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

th, td {
  padding: 1.1rem 1.5rem;
}

th {
  background: rgba(255, 255, 255, 0.03);
  font-weight: 600;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--border-card);
}

tr {
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
  transition: var(--transition);
}

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

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

td {
  font-size: 0.95rem;
}

td.test-name {
  font-weight: 500;
  color: var(--color-text-main);
}

td.value {
  font-weight: 600;
  color: var(--color-accent-teal);
}

/* Badge for Units */
.unit-badge {
  display: inline-block;
  background: rgba(59, 130, 246, 0.1);
  color: rgba(59, 130, 246, 0.9);
  border: 1px solid rgba(59, 130, 246, 0.2);
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 500;
}

.range-text {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* Responsive Styles */
@media (max-width: 768px) {
  body {
    padding: 1.5rem 1rem;
  }
  
  header h1 {
    font-size: 2.2rem;
  }
  
  th, td {
    padding: 0.8rem 1rem;
  }
  
  .upload-card {
    padding: 1.5rem;
  }
}