:root {
  --bg: #0e0e10;
  --fg: #f4f4f5;
  --muted: #9a9aa2;
  --accent: #ff5a1f;
  --panel: #17171a;
  --border: #2a2a30;
  --ok: #4ade80;
  --err: #f87171;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.4;
}

main {
  max-width: 560px;
  margin: 0 auto;
  padding: 32px 20px 64px;
}

header h1 {
  margin: 0;
  font-size: 28px;
  letter-spacing: 0.04em;
}

header .lede {
  margin: 4px 0 24px;
  color: var(--muted);
}

.tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
}

.tab {
  background: transparent;
  border: none;
  color: var(--muted);
  padding: 10px 16px;
  cursor: pointer;
  font: inherit;
  border-bottom: 2px solid transparent;
}

.tab.active {
  color: var(--fg);
  border-bottom-color: var(--accent);
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
}

.panel.hidden { display: none; }

label {
  display: block;
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 6px;
}

textarea, input[type="file"] {
  width: 100%;
  background: #0b0b0d;
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px;
  font: inherit;
  resize: vertical;
}

textarea:focus, input[type="file"]:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 12px;
}

.counter, .hint, .meta {
  color: var(--muted);
  font-size: 13px;
}

button[type="submit"] {
  background: var(--accent);
  color: #1a1a1a;
  border: none;
  border-radius: 6px;
  padding: 10px 16px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

button[type="submit"]:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.preview {
  margin-top: 12px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.preview img {
  max-width: 96px;
  max-height: 96px;
  border-radius: 6px;
  border: 1px solid var(--border);
}

.status {
  display: block;
  margin-top: 16px;
  min-height: 1.4em;
  font-size: 14px;
}

.status.ok  { color: var(--ok); }
.status.err { color: var(--err); }

/* Page header with logout link */
.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.logout {
  color: var(--muted);
  text-decoration: none;
  font-size: 13px;
  border: 1px solid var(--border);
  padding: 6px 10px;
  border-radius: 6px;
}

.logout:hover { color: var(--fg); border-color: var(--fg); }

/* Login screen */
main.login {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 80vh;
}

.login-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
  width: 100%;
  max-width: 360px;
}

.login-card h1 { margin: 0; font-size: 24px; letter-spacing: 0.04em; }
.login-card .lede { margin: 4px 0 16px; color: var(--muted); }

.login-card form { display: flex; flex-direction: column; gap: 4px; }
.login-card label { margin-top: 8px; }

.login-card input[type="text"],
.login-card input[type="password"] {
  width: 100%;
  background: #0b0b0d;
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px;
  font: inherit;
}

.login-card input:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.login-card button[type="submit"] {
  margin-top: 16px;
  background: var(--accent);
  color: #1a1a1a;
  border: none;
  border-radius: 6px;
  padding: 10px 16px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}