/* Minimal clean UI */
:root { --bg: #0b0f14; --card: #111823; --text: #e8eef6; --muted: #a9b6c7; --border: #223044; --accent: #6ea8fe; --danger:#ff6b6b; --ok:#4ade80; --control-bg: #0e1520; --control-bg-strong: #16263a;}
:root[data-theme="dark"] { --bg: #0b0f14; --card: #111823; --text: #e8eef6; --muted: #a9b6c7; --border: #223044; --accent: #6ea8fe; --danger:#ff6b6b; --ok:#4ade80; --control-bg: #0e1520; --control-bg-strong: #16263a;}
:root[data-theme="light"] { --bg: #f6f7f9; --card: #ffffff; --text: #101418; --muted: #5c6673; --border: #d6dbe3; --accent: #2563eb; --danger:#b91c1c; --ok:#16a34a; --control-bg: #f3f5f8; --control-bg-strong: #e7ecf3;}
@media (prefers-color-scheme: light) {
  :root { --bg: #f6f7f9; --card: #ffffff; --text: #101418; --muted: #5c6673; --border: #d6dbe3; --accent: #2563eb; --danger:#b91c1c; --ok:#16a34a;}
}

* { box-sizing: border-box; }
body { margin: 0; font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif; background: var(--bg); color: var(--text); transition: background-color .2s ease, color .2s ease; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { max-width: 1100px; margin: 0 auto; padding: 24px; }
.header { display: flex; justify-content: space-between; gap: 16px; align-items: baseline; margin-bottom: 18px; }
.header h1 { margin: 0 0 4px 0; font-size: 28px; }
.header p { margin: 0; }
.links { display: flex; gap: 14px; flex-wrap: wrap; justify-content: flex-end; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 18px; margin: 16px 0; box-shadow: 0 6px 18px rgba(0,0,0,.25); transition: background-color .2s ease, border-color .2s ease; }
.card h2 { margin: 0 0 12px 0; font-size: 18px; }
.muted { color: var(--muted); }
.section-label { color: var(--muted); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; margin-top: 6px; display: flex; align-items: center; }
.icon { display: inline-flex; width: 12px; height: 12px; margin-right: 6px; }
.icon svg { width: 12px; height: 12px; stroke: var(--muted); fill: none; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.form { display: flex; flex-direction: column; gap: 14px; }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
label { display: flex; flex-direction: column; gap: 6px; font-size: 14px; }
input, select, textarea { background: var(--control-bg); border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px; color: var(--text); font-size: 14px; transition: background-color .2s ease, color .2s ease, border-color .2s ease; }
textarea { min-height: 90px; resize: vertical; }
input::file-selector-button { background: var(--control-bg-strong); border: 1px solid var(--border); color: var(--text); padding: 8px 10px; border-radius: 8px; margin-right: 10px; cursor: pointer; }
input::file-selector-button:hover { border-color: var(--accent); }
.span2 { grid-column: span 2; }
.actions { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
button, .btn { background: var(--control-bg-strong); border: 1px solid var(--border); color: var(--text); padding: 10px 14px; border-radius: 12px; cursor: pointer; font-weight: 600; display:inline-block; transition: background-color .2s ease, color .2s ease, border-color .2s ease;}
button:hover, .btn:hover { border-color: var(--accent); }
.theme-toggle { padding: 8px 10px; min-width: 40px; display: inline-flex; align-items: center; justify-content: center; background: transparent; color: var(--text); }
.theme-toggle svg { width: 16px; height: 16px; fill: currentColor; }
.theme-toggle .icon-light { display: none; }
:root[data-theme="light"] .theme-toggle .icon-light { display: inline; }
:root[data-theme="light"] .theme-toggle .icon-dark { display: none; }
.btn-danger { border-color: rgba(255,107,107,.4); }
.btn-danger:hover { border-color: var(--danger); }
.hint { margin: 0; font-size: 12px; color: var(--muted); }
.footer { margin-top: 18px; font-size: 12px; }
table { width: 100%; border-collapse: collapse; overflow: hidden; border-radius: 12px; }
th, td { padding: 10px 10px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
tr:hover td { background: rgba(110,168,254,.06); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace; font-size: 12px; }
.error { color: var(--danger); white-space: pre-wrap; }
.ok { color: var(--ok); }
.advanced summary { cursor: pointer; color: var(--accent); margin-bottom: 8px; }
.advanced { border: 1px dashed var(--border); padding: 12px; border-radius: 12px; }
.badge { display:inline-block; padding:4px 8px; border-radius:999px; border:1px solid var(--border); font-size:12px; color: var(--muted); }
.badge.ok { border-color: rgba(74,222,128,.4); color: var(--ok); }
.badge.err { border-color: rgba(255,107,107,.4); color: var(--danger); }
.row { display:flex; gap: 10px; align-items:center; flex-wrap:wrap; }
small { color: var(--muted); }