:root {
  --bg: #0f1115;
  --panel: #171a21;
  --border: #2a2e38;
  --text: #e6e8eb;
  --muted: #9aa1ac;
  --accent: #4f8cff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}

header {
  padding: 2rem 1.5rem 1rem;
  max-width: 960px;
  margin: 0 auto;
}

header h1 {
  margin: 0 0 0.25rem;
  font-size: 1.75rem;
}

header p {
  margin: 0;
  color: var(--muted);
}

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 1rem 1.5rem 3rem;
}

nav.top-links {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  gap: 1rem;
}

nav.top-links a {
  color: var(--accent);
  text-decoration: none;
  font-size: 0.9rem;
}

nav.top-links a:hover {
  text-decoration: underline;
}

.dashboard-list {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.dashboard-list li a {
  display: block;
  padding: 1rem 1.25rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  text-decoration: none;
}

.dashboard-list li a:hover {
  border-color: var(--accent);
}

.empty-state {
  margin-top: 1.5rem;
  padding: 1.5rem;
  border: 1px dashed var(--border);
  border-radius: 8px;
  color: var(--muted);
  text-align: center;
}

.dropzone {
  margin-top: 1.5rem;
  border: 2px dashed var(--border);
  border-radius: 12px;
  padding: 3rem 1.5rem;
  text-align: center;
  color: var(--muted);
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.dropzone.dragover {
  border-color: var(--accent);
  background: rgba(79, 140, 255, 0.06);
}

.dropzone input[type="file"] {
  display: none;
}

.progress-track {
  margin-top: 1rem;
  height: 8px;
  border-radius: 4px;
  background: var(--border);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: var(--accent);
  transition: width 0.15s ease;
}

#status {
  margin-top: 1rem;
  font-size: 0.9rem;
  min-height: 1.5rem;
}

#status.ok {
  color: #4fdb8f;
}

#status.error {
  color: #ff6b6b;
}