:root {
  --bg: #0f172a;
  --surface: #1e293b;
  --surface-2: #334155;
  --border: #475569;
  --text: #f8fafc;
  --muted: #94a3b8;
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --radius: 12px;
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.25);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: linear-gradient(180deg, #0b1220 0%, #111827 100%);
  color: var(--text);
  min-height: 100vh;
}

header {
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-inner,
main {
  max-width: 960px;
  margin: 0 auto;
  padding: 1rem 1.25rem;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

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

.brand-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), #8b5cf6);
  display: grid;
  place-items: center;
  font-weight: 700;
}

.brand h1 {
  font-size: 1.05rem;
  margin: 0;
}

.brand p {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.status-pill {
  font-size: 0.8rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
}

.status-pill.ok {
  color: #86efac;
  border-color: rgba(34, 197, 94, 0.35);
  background: rgba(34, 197, 94, 0.08);
}

.status-pill.error {
  color: #fca5a5;
  border-color: rgba(239, 68, 68, 0.35);
  background: rgba(239, 68, 68, 0.08);
}

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

@media (min-width: 860px) {
  .grid {
    grid-template-columns: 340px 1fr;
  }
}

.card {
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.25rem;
}

.card h2 {
  margin: 0 0 0.35rem;
  font-size: 1.1rem;
}

.card .subtitle {
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.tab {
  flex: 1;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  padding: 0.65rem 0.75rem;
  border-radius: 8px;
  cursor: pointer;
}

.tab.active {
  background: var(--primary);
  border-color: var(--primary);
}

label {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 0.35rem;
}

input[type="email"],
input[type="password"],
input[type="text"] {
  width: 100%;
  padding: 0.7rem 0.8rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #0f172a;
  color: var(--text);
  margin-bottom: 0.75rem;
}

button {
  border: none;
  border-radius: 8px;
  padding: 0.75rem 1rem;
  font-weight: 600;
  cursor: pointer;
}

.btn-primary {
  background: var(--primary);
  color: white;
  width: 100%;
}

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

.btn-primary:disabled,
.btn-secondary:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.btn-secondary {
  background: var(--surface-2);
  color: var(--text);
}

.btn-success {
  background: var(--success);
  color: #052e16;
  width: 100%;
}

.hidden {
  display: none !important;
}

.dropzone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 2rem 1rem;
  text-align: center;
  background: rgba(15, 23, 42, 0.45);
  transition: border-color 0.2s, background 0.2s;
}

.dropzone.dragover {
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.08);
}

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

.file-meta {
  margin-top: 0.75rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  margin: 1rem 0;
}

.step {
  text-align: center;
  padding: 0.65rem 0.35rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.8rem;
}

.step.active {
  color: var(--text);
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.12);
}

.step.done {
  color: #86efac;
  border-color: rgba(34, 197, 94, 0.35);
  background: rgba(34, 197, 94, 0.08);
}

.alert {
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  border-radius: 8px;
  font-size: 0.92rem;
}

.alert.info {
  background: rgba(99, 102, 241, 0.12);
  border: 1px solid rgba(99, 102, 241, 0.35);
}

.alert.success {
  background: rgba(34, 197, 94, 0.12);
  border: 1px solid rgba(34, 197, 94, 0.35);
}

.alert.error {
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.35);
}

.progress {
  height: 8px;
  background: #0f172a;
  border-radius: 999px;
  overflow: hidden;
  margin-top: 1rem;
}

.progress > span {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--primary), #8b5cf6);
  transition: width 0.3s ease;
}

.actions {
  display: grid;
  gap: 0.75rem;
  margin-top: 1rem;
}

.user-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1rem;
  padding: 0.75rem;
  border-radius: 8px;
  background: rgba(15, 23, 42, 0.55);
  border: 1px solid var(--border);
  font-size: 0.9rem;
}

footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
  padding: 2rem 1rem 2.5rem;
}