:root {
  --bg: #07111f;
  --text: #f5f7fb;
  --muted: #b8c0cf;
  --accent: #5eead4;
  --accent-2: #60a5fa;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: radial-gradient(circle at top, #12304d 0%, var(--bg) 50%, #02060d 100%);
  color: var(--text);
  min-height: 100vh;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 20px 0;
}

.brand {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.brand.small {
  font-size: 0.9rem;
  opacity: 0.8;
}

.top-links {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
}

.top-links a {
  color: var(--accent);
  text-decoration: none;
  font-size: 0.75rem;
  font-weight: 600;
}

.page {
  max-width: 980px;
  margin: 0 auto;
  padding: 60px 20px 40px;
  text-align: center;
}

h1 {
  font-size: 2.2rem;
  margin-bottom: 10px;
}

p {
  color: var(--muted);
  margin-bottom: 24px;
}

.upload-box {
  display: inline-block;
  padding: 18px 24px;
  border: 2px dashed var(--accent);
  border-radius: 16px;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.06);
}

.upload-box input {
  display: none;
}

.file-name {
  margin-top: 12px;
  color: var(--text);
  font-weight: 600;
}

.status {
  margin-top: 12px;
  min-height: 24px;
  color: var(--muted);
}

.status.error {
  color: #ff8a80;
}

.editor-tools {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin: 24px 0 18px;
  align-items: center;
}

.control {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.control select,
.control input[type="range"] {
  cursor: pointer;
}

.action-button {
  padding: 12px 18px;
  border: none;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #04111c;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.action-button.secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.action-button:hover {
  transform: translateY(-2px);
}

.pdf-viewer {
  position: relative;
  display: inline-block;
  margin: 10px auto 0;
  padding: 12px;
  border-radius: 18px;
  background: #ffffff;
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.3);
  overflow: auto;
  max-width: 100%;
}

.pdf-viewer canvas {
  display: block;
  max-width: 100%;
  height: auto;
}

.text-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.text-layer .text-box {
  position: absolute;
  min-width: 40px;
  padding: 2px 4px;
  white-space: pre-wrap;
  color: #111111;
  cursor: pointer;
  pointer-events: auto;
  border: 1px dashed transparent;
  background: transparent;
  line-height: 1.2;
}

.text-layer .text-box.editing {
  border-color: var(--accent);
  background: rgba(94, 234, 212, 0.12);
}

.text-layer .text-box.selected {
  border-color: var(--accent-2);
  background: rgba(96, 165, 250, 0.18);
}

.download-wrap {
  margin-top: 20px;
}

.back-link {
  display: inline-block;
  margin-top: 20px;
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}