:root {
  --bg: #0b0f14;
  --panel: #121821;
  --panel-2: #19212c;
  --border: #232c3a;
  --text: #e6edf3;
  --muted: #8b949e;
  --accent: #4c8bf5;
  --accent-2: #6aa9ff;
  --danger: #d93b3b;
  --success: #2ea043;
  --error: #f85149;
  --radius: 10px;
  --shadow: 0 6px 20px rgba(0,0,0,0.35);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--text); min-height: 100%; }
body { font-size: 16px; line-height: 1.5; }
a { color: var(--accent-2); text-decoration: none; }
a:hover { color: var(--accent); text-decoration: underline; }

.site-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 1.5rem; border-bottom: 1px solid var(--border);
}
.site-header .brand { font-weight: 700; font-size: 1.1rem; color: var(--text); }
.site-header .brand:hover { text-decoration: none; color: var(--accent-2); }
.site-header nav a { margin-left: 1rem; color: var(--muted); }
.site-header nav a:hover { color: var(--accent-2); }

main { padding: 2rem 1.5rem 4rem; max-width: 1200px; margin: 0 auto; }

.hero { text-align: center; padding: 3rem 1rem 2.5rem; }
.hero h1 { font-size: clamp(2.5rem, 6vw, 4rem); margin: 0 0 0.5rem; letter-spacing: -0.02em; }
.hero p { color: var(--muted); margin: 0 auto; max-width: 60ch; }

.grid {
  display: grid; gap: 1rem;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
}
.card {
  display: flex; flex-direction: column; background: var(--panel);
  border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; color: var(--text); text-decoration: none;
  transition: transform 0.15s ease, border-color 0.15s ease;
}
.card:hover { text-decoration: none; transform: translateY(-2px); border-color: var(--accent); }
.card-cover {
  aspect-ratio: 16 / 9; background-size: cover; background-position: center;
  background-color: var(--panel-2);
}
.card-cover-placeholder {
  display: flex; align-items: center; justify-content: center;
  font-size: 2.5rem; font-weight: 700; letter-spacing: -0.04em; color: rgba(255,255,255,0.92);
  text-shadow: 0 2px 6px rgba(0,0,0,0.4);
}
.card-body { padding: 1rem; }
.card-body h2 { margin: 0 0 0.25rem; font-size: 1.05rem; letter-spacing: -0.01em; }
.card-body p { margin: 0; color: var(--muted); font-size: 0.95rem;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.card-meta { margin-top: 0.6rem; font-size: 0.8rem; color: var(--muted); }

.empty { text-align: center; color: var(--muted); padding: 2rem; }

.flashes { max-width: 1200px; margin: 1rem auto 0; padding: 0 1.5rem; }
.flash { padding: 0.6rem 0.8rem; border-radius: 6px; margin-bottom: 0.5rem; border: 1px solid var(--border); background: var(--panel-2); }
.flash-success { border-color: var(--success); color: #b6f0c2; }
.flash-error   { border-color: var(--error);   color: #ffc4c0; }

.site-footer { text-align: center; padding: 1rem; color: var(--muted); border-top: 1px solid var(--border); }

/* App iframe view */
.frame-body { display: flex; flex-direction: column; height: 100vh; margin: 0; }
.frame-bar {
  display: flex; align-items: center; gap: 1rem;
  padding: 0.55rem 0.9rem; border-bottom: 1px solid var(--border); background: var(--panel);
}
.frame-back { color: var(--muted); font-size: 0.95rem; }
.frame-back:hover { color: var(--accent-2); text-decoration: none; }
.frame-title { font-weight: 600; }
.frame-spacer { flex: 1; }
.app-iframe { flex: 1; width: 100%; border: 0; background: white; }

/* Forms */
.form-narrow { max-width: 420px; margin: 2rem auto; }
.form-narrow h1, .admin-head h1 { margin: 0 0 1rem; }
.admin-head { display: flex; align-items: baseline; justify-content: space-between; }

form label { display: block; margin: 0.8rem 0; font-weight: 600; }
form label .hint { font-weight: 400; color: var(--muted); font-size: 0.85rem; }
form input[type=text], form input[type=password], form input[type=file], form textarea {
  display: block; width: 100%; margin-top: 0.3rem;
  background: var(--panel-2); border: 1px solid var(--border); color: var(--text);
  padding: 0.55rem 0.7rem; border-radius: 6px; font: inherit;
}
form textarea { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; resize: vertical; }
form button {
  background: var(--accent); color: white; border: 0; border-radius: 6px;
  padding: 0.6rem 1.1rem; font: inherit; font-weight: 600; cursor: pointer;
}
form button:hover { background: var(--accent-2); }
form button.danger { background: var(--danger); }
form button.danger:hover { background: #ef5757; }

.source-toggle { border: 1px solid var(--border); border-radius: 6px; padding: 0.6rem 0.8rem; margin: 1rem 0; }
.source-toggle legend { padding: 0 0.4rem; color: var(--muted); }
.source-toggle .radio { display: inline-flex; align-items: center; gap: 0.4rem; margin-right: 1rem; font-weight: 400; }

.card-block {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1.2rem 1.4rem; margin-bottom: 1.4rem; box-shadow: var(--shadow);
}
.card-block h2 { margin-top: 0; }

.apps-table { width: 100%; border-collapse: collapse; }
.apps-table th, .apps-table td { text-align: left; padding: 0.55rem 0.7rem; border-bottom: 1px solid var(--border); }
.apps-table th { color: var(--muted); font-weight: 600; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.05em; }
.apps-table code { color: var(--accent-2); }
.row-actions { display: flex; gap: 0.5rem; align-items: center; }
.row-actions form { margin: 0; }
.row-actions button { padding: 0.3rem 0.6rem; font-size: 0.85rem; }

.current-cover { margin: 0.6rem 0; color: var(--muted); }
.current-cover img { vertical-align: middle; margin-left: 0.5rem; border-radius: 4px; }