:root {
  --primary-color: #0ea5e9; /* Sky blue */
  --primary-hover: #0284c7;
  --secondary-color: #0f172a; /* Dark slate */
  --light-gray: #f8fafc;
  --mid-gray: #e2e8f0;
  --dark-gray: #475569;
  --success: #10b981;
  --danger: #ef4444;
  --text-color: #1e293b;
  --border-radius: 8px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --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, 0.1),
    0 4px 6px -2px rgba(0, 0, 0, 0.05);
}




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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
    Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
  margin: 0;
  padding: 0;
  background-color: var(--light-gray);
  color: var(--text-color);
  line-height: 1.6;
}




.container {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

header {
  width: 100%;
  text-align: center;
  margin-bottom: 30px;
  padding: 20px 0;
  border-bottom: 1px solid var(--mid-gray);
}

h1 {
  color: var(--primary-color);
  margin-bottom: 10px;
  font-size: 2.5rem;
}

.subtitle {
  color: var(--dark-gray);
  font-style: italic;
  margin-top: 0;
  max-width: 700px;
  margin: 0 auto;
}

.file-input-container {
  width: 100%;
  margin-bottom: 20px;
  position: relative;
  text-align: center;
}

.file-input-label {
  display: inline-block;
  padding: 12px 24px;
  background-color: var(--primary-color);
  color: white;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-weight: 500;
  transition: background-color 0.2s;
  box-shadow: var(--shadow-sm);
}

.file-input-label:hover {
  background-color: var(--primary-hover);
}

.file-input-label span {
  margin-left: 8px;
}

#fileInput {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.selected-file {
  margin-top: 10px;
  font-size: 0.9rem;
  color: var(--dark-gray);
}

.workspace {
  display: flex;
  width: 100%;
  gap: 20px;
  margin-top: 20px;
  flex-direction: column;
}

.pdf-view {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.controls {
  background-color: white;
  padding: 15px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
  margin-bottom: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  align-items: center;
  justify-content: center;
}

.control-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

#pdfContainer {
  position: relative;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background-color: white;
  margin: 0 auto;
  max-width: 100%;
}

#crosshair {
  position: absolute;
  pointer-events: none;
  display: none;
  z-index: 100;
}

#crosshair .vertical {
  position: absolute;
  width: 1px;
  height: 100%;
  background-color: rgba(239, 68, 68, 0.7);
}

#crosshair .horizontal {
  position: absolute;
  width: 100%;
  height: 1px;
  background-color: rgba(239, 68, 68, 0.7);
}

.point-marker {
  position: absolute;
  width: 12px;
  height: 12px;
  background-color: var(--primary-color);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  cursor: pointer;
  z-index: 90;
  box-shadow: 0 0 0 2px white;
  transition: transform 0.2s, background-color 0.2s;
}

.point-marker:hover {
  transform: translate(-50%, -50%) scale(1.3);
  background-color: var(--primary-hover);
}

canvas {
  display: block;
  cursor: crosshair;
  max-width: 100%;
  height: auto;
}

.sidebar {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.coordinates-box {
  background-color: white;
  padding: 20px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
}

.coords-label {
  font-weight: bold;
  margin-bottom: 15px;
  color: var(--primary-color);
  font-size: 1.1rem;
}

.coord-values {
  display: flex;
  gap: 15px;
  margin-bottom: 15px;
}

.coord-value {
  flex: 1;
  text-align: center;
  font-size: 18px;
  padding: 12px;
  background-color: var(--light-gray);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
}

.coord-title {
  font-weight: bold;
  display: block;
  margin-bottom: 5px;
  color: var(--dark-gray);
}

#coordsList {
  background-color: white;
  padding: 20px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
  overflow-x: auto;
}

#coordsList h3 {
  margin-top: 0;
  color: var(--primary-color);
  border-bottom: 1px solid var(--mid-gray);
  padding-bottom: 10px;
  margin-bottom: 15px;
  font-size: 1.1rem;
}

.table-container {
  overflow-x: auto;
  width: 100%;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 600px;
}

th {
  background-color: var(--light-gray);
  color: var(--dark-gray);
  text-align: left;
  padding: 12px 10px;
  font-weight: 600;
  position: sticky;
  top: 0;
}

td {
  padding: 12px 10px;
  border-bottom: 1px solid var(--mid-gray);
}

tr:hover {
  background-color: rgba(14, 165, 233, 0.05);
}

button {
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: var(--border-radius);
  padding: 8px 16px;
  cursor: pointer;
  font-weight: 500;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
}

button:hover {
  background-color: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

button:active {
  transform: translateY(0);
}

.delete-btn {
  background-color: var(--danger);
  padding: 6px 12px;
  font-size: 0.85em;
}

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

input[type="number"],
select {
  padding: 8px 12px;
  border: 1px solid var(--mid-gray);
  border-radius: var(--border-radius);
  font-family: inherit;
  box-shadow: var(--shadow-sm);
}

.copy-btn {
  width: 100%;
  margin-top: 15px;
  padding: 12px;
  background-color: var(--success);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.copy-btn:hover {
  background-color: #059669;
}

.copy-btn svg {
  width: 18px;
  height: 18px;
}

/* Modal styles */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  justify-content: center;
  align-items: center;
}

.modal-content {
  background-color: white;
  padding: 25px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  width: 350px;
  max-width: 90%;
}

.modal-title {
  margin-top: 0;
  color: var(--primary-color);
  margin-bottom: 20px;
}

.form-group {
  margin-bottom: 20px;
}

label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
}

.modal input[type="text"] {
  width: 100%;
  padding: 10px;
  box-sizing: border-box;
  border: 1px solid var(--mid-gray);
  border-radius: var(--border-radius);
}

.modal-buttons {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.cancel-btn {
  background-color: var(--mid-gray);
  color: var(--dark-gray);
}

.cancel-btn:hover {
  background-color: #cbd5e1;
}

/* Social CTA */
.social-cta {
  margin-top: 30px;
  padding: 20px;
  background-color: white;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
  text-align: center;
  width: 100%;
}

.social-cta h3 {
  color: var(--primary-color);
  margin-bottom: 15px;
}

.social-cta p {
  margin-bottom: 15px;
}

.twitter-follow {
  display: inline-flex;
  align-items: center;
  background-color: #1da1f2;
  color: white;
  padding: 10px 20px;
  border-radius: 30px;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.2s;
}

.twitter-follow:hover {
  background-color: #0c85d0;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.twitter-follow svg {
  margin-right: 8px;
}

/* Footer */
footer {
  margin-top: 40px;
  padding: 20px;
  text-align: center;
  border-top: 1px solid var(--mid-gray);
  color: var(--dark-gray);
  width: 100%;
}

footer a {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 500;
}

footer a:hover {
  text-decoration: underline;
}

/* No PDF message */
.no-pdf-message {
  text-align: center;
  padding: 40px 20px;
  background-color: white;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
  margin: 20px 0;
}

.no-pdf-message h3 {
  color: var(--primary-color);
  margin-bottom: 15px;
}

.no-pdf-message p {
  margin-bottom: 20px;
  color: var(--dark-gray);
}

/* Responsive styles */
@media (min-width: 768px) {
  .workspace {
    flex-direction: row;
  }

  .sidebar {
    width: 350px;
  }
}

@media (max-width: 767px) {
  h1 {
    font-size: 1.8rem;
  }

  .controls {
    flex-direction: column;
    align-items: stretch;
  }

  .control-group {
    justify-content: space-between;
  }

  .coord-values {
    flex-direction: column;
    gap: 10px;
  }

  .coord-value {
    padding: 8px;
  }
}

/* Loading indicator */
.loading {
  display: none;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}

.loading-spinner {
  border: 4px solid rgba(0, 0, 0, 0.1);
  border-radius: 50%;
  border-top: 4px solid var(--primary-color);
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
  margin: 0 auto 15px;
}

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