:root {
  --navy: #1f2c56;
  --accent: #2f6fed;
  --bg: #f4f6fb;
  --card: #ffffff;
  --border: #e3e8f2;
  --text: #1c2333;
  --muted: #6b7488;
  --ok: #178a4c;
  --ok-bg: #e7f6ee;
  --err: #c0392b;
  --err-bg: #fdeceb;
}

* { box-sizing: border-box; }

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

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 24px;
  background: var(--navy);
  color: #fff;
}
.brand { display: flex; align-items: baseline; gap: 12px; }
.logo { font-size: 22px; font-weight: 700; letter-spacing: .5px; }
.subtitle { font-size: 13px; opacity: .85; }
.auth { display: flex; align-items: center; gap: 10px; }
.auth input {
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid #3a4670;
  background: #16203f;
  color: #fff;
  width: 260px;
}
.auth input::placeholder { color: #8a93b5; }
.identity {
  font-size: 13px;
  padding: 6px 12px;
  border-radius: 999px;
  background: #16203f;
  color: #c7d0ea;
  white-space: nowrap;
}
.identity.ok { background: var(--ok); color: #fff; }
.identity.err { background: var(--err); color: #fff; }

.tabs {
  display: flex;
  gap: 4px;
  padding: 0 24px;
  background: var(--card);
  border-bottom: 1px solid var(--border);
}
.tab {
  border: none;
  background: none;
  padding: 14px 18px;
  font-size: 15px;
  cursor: pointer;
  color: var(--muted);
  border-bottom: 2px solid transparent;
}
.tab.active { color: var(--accent); border-bottom-color: var(--accent); font-weight: 600; }

main { max-width: 960px; margin: 24px auto; padding: 0 24px; }

.panel { display: none; }
.panel.active { display: block; }
.panel-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }

h2 { margin: 0 0 8px; font-size: 20px; }
.muted { color: var(--muted); font-size: 14px; }
em { font-style: normal; }

/* Upload */
.dropzone {
  margin: 16px 0;
  border: 2px dashed var(--border);
  border-radius: 12px;
  background: var(--card);
  padding: 36px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color .15s, background .15s;
}
.dropzone.drag { border-color: var(--accent); background: #eef3ff; }
.dz-icon { font-size: 30px; color: var(--accent); }
.dz-file { margin-top: 8px; font-weight: 600; color: var(--accent); }

.btn {
  padding: 10px 20px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--card);
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
}
.btn.primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn.primary:disabled { opacity: .5; cursor: not-allowed; }

.result { margin-top: 16px; }
.result .box {
  padding: 14px 16px;
  border-radius: 10px;
  font-size: 14px;
  white-space: pre-wrap;
}
.result .ok { background: var(--ok-bg); color: var(--ok); border: 1px solid #bfe3cf; }
.result .err { background: var(--err-bg); color: var(--err); border: 1px solid #f2c5c1; }

/* History */
.filters { display: flex; gap: 8px; }
.filters input { padding: 8px 12px; border-radius: 8px; border: 1px solid var(--border); }

.table-wrap {
  margin-top: 14px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: auto;
}
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { background: #f0f3fa; color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .4px; }
tr:last-child td { border-bottom: none; }
.badge { padding: 3px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge.valid { background: var(--ok-bg); color: var(--ok); }
.badge.invalid { background: var(--err-bg); color: var(--err); }
.badge.latest { background: #e7edff; color: var(--accent); }

/* Generate */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 16px 0; }
.form-grid label { display: flex; flex-direction: column; gap: 6px; font-size: 14px; font-weight: 600; }
.form-grid select, .form-grid input {
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  font-size: 14px;
}
.dl-link {
  display: inline-block;
  margin-top: 12px;
  padding: 10px 18px;
  border-radius: 8px;
  background: var(--ok);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
}

/* Templates */
.tpl-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
  margin-top: 16px;
}
.tpl-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.tpl-card .tpl-name { font-weight: 700; font-size: 15px; }
.tpl-card .tpl-meta { color: var(--muted); font-size: 13px; flex: 1; }
.tpl-card .btn { text-align: center; text-decoration: none; }
.tpl-card .btn.dl { background: var(--accent); color: #fff; border-color: var(--accent); }

.foot { text-align: center; padding: 24px; }