:root {
  --bg: #0c0f14;
  --panel: #151a22;
  --panel-2: #0f141b;
  --border: rgba(255, 255, 255, 0.08);
  --text: #e9eef4;
  --muted: #9aa7b4;
  --faint: #5e6b78;
  --accent: #34d399;
  --accent-2: #22b8cf;
  --danger: #ff6b6b;
  --radius: 16px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
[hidden] { display: none !important; }
html, body { min-height: 100%; }

body {
  font-family: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--bg); color: var(--text);
  padding: 40px 20px 60px; position: relative;
}
.bg {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(40rem 32rem at 6% -8%, rgba(52, 211, 153, 0.16), transparent 60%),
    radial-gradient(34rem 28rem at 100% 6%, rgba(34, 184, 207, 0.12), transparent 60%);
}
.shell { position: relative; z-index: 1; max-width: 920px; margin: 0 auto; }

.masthead { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; margin-bottom: 30px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark { font-size: 24px; }
.brand-name { font-weight: 800; font-size: 20px; letter-spacing: -0.02em; }
.privacy-pill {
  font-size: 13px; color: var(--accent); font-weight: 600;
  background: rgba(52, 211, 153, 0.1); border: 1px solid rgba(52, 211, 153, 0.25);
  padding: 6px 12px; border-radius: 999px;
}

.headline { font-size: clamp(28px, 5.5vw, 44px); font-weight: 800; letter-spacing: -0.03em; line-height: 1.06; margin-bottom: 12px; }
.sub { color: var(--muted); font-size: 16px; max-width: 60ch; margin-bottom: 26px; }

.card {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 22px; margin-bottom: 22px;
  box-shadow: 0 18px 46px rgba(0, 0, 0, 0.38);
}

.dropzone {
  border: 2px dashed rgba(255,255,255,0.14); border-radius: 14px;
  padding: 40px 24px; text-align: center; cursor: pointer;
  transition: border-color 0.18s, background 0.18s, transform 0.1s;
}
.dropzone:hover, .dropzone:focus-visible { border-color: var(--accent); background: rgba(52,211,153,0.06); outline: none; }
.dropzone.drag { border-color: var(--accent); background: rgba(52,211,153,0.12); transform: scale(1.01); }
.dz-icon { font-size: 32px; margin-bottom: 10px; opacity: 0.8; }
.dz-title { font-size: 17px; font-weight: 600; margin-bottom: 6px; }
.dz-hint { font-size: 13px; color: var(--faint); letter-spacing: 0.04em; }
.link { color: var(--accent); text-decoration: underline; }

.builder-head { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; margin-bottom: 8px; }
.builder-head h2 { font-size: 15px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--faint); }
.template-bar { display: flex; gap: 8px; flex-wrap: wrap; }
.builder-hint { font-size: 13px; color: var(--faint); margin-bottom: 16px; }

.col-list { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.col-row {
  display: grid;
  grid-template-columns: 26px 26px 1fr 1fr 1.1fr;
  gap: 10px; align-items: center;
  background: var(--panel-2); border: 1px solid var(--border);
  border-radius: 10px; padding: 9px 12px;
  transition: border-color 0.15s, opacity 0.15s;
}
.col-row.dragging { opacity: 0.5; border-color: var(--accent); }
.col-row.disabled { opacity: 0.45; }
.drag-handle { cursor: grab; color: var(--faint); text-align: center; font-size: 16px; user-select: none; }
.drag-handle:active { cursor: grabbing; }
.col-row input[type="checkbox"] { width: 16px; height: 16px; accent-color: var(--accent); }
.src-name { font-size: 13px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.col-row input[type="text"], .col-row select {
  width: 100%; background: #0b0f15; border: 1px solid var(--border);
  border-radius: 8px; color: var(--text); padding: 7px 9px; font-size: 13px; font-family: inherit;
}
.col-row input:focus, .col-row select:focus { outline: none; border-color: var(--accent); }

.builder-foot {
  display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
  margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--border);
}
.inline { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); }
.inline input[type="checkbox"] { width: 16px; height: 16px; accent-color: var(--accent); }
.inline select { background: var(--panel-2); border: 1px solid var(--border); color: var(--text); border-radius: 8px; padding: 6px 9px; font-family: inherit; }
.builder-foot .btn-primary { margin-left: auto; }

.btn-primary {
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  color: #04130b; border: none; border-radius: 10px;
  padding: 11px 20px; font-size: 15px; font-weight: 800;
  cursor: pointer; font-family: inherit; white-space: nowrap;
  transition: filter 0.15s, transform 0.1s;
}
.btn-primary:hover { filter: brightness(1.07); }
.btn-primary:active { transform: translateY(1px); }

.btn-ghost {
  background: transparent; border: 1px solid var(--border); color: var(--muted);
  border-radius: 9px; padding: 9px 14px; font-size: 13px; font-weight: 600;
  cursor: pointer; font-family: inherit; transition: all 0.15s;
}
.btn-ghost:hover:not(:disabled) { color: var(--text); border-color: var(--accent); }
.btn-ghost:disabled { opacity: 0.4; cursor: default; }
#template-select {
  background: var(--panel-2); border: 1px solid var(--border); color: var(--text);
  border-radius: 9px; padding: 8px 11px; font-size: 13px; font-family: inherit; min-width: 170px;
}

.preview-head { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; margin-bottom: 14px; }
.preview-head h2 { font-size: 15px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--faint); }
.muted { color: var(--faint); text-transform: none; letter-spacing: 0; font-weight: 500; }
.export-bar { display: flex; gap: 8px; }

.table-wrap { overflow: auto; max-height: 420px; border: 1px solid var(--border); border-radius: 10px; }
table { border-collapse: collapse; width: 100%; font-size: 13px; }
th, td { padding: 8px 12px; text-align: left; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { position: sticky; top: 0; background: var(--panel-2); color: var(--accent); font-weight: 700; z-index: 1; }
td { color: var(--muted); }
tbody tr:hover td { background: rgba(255,255,255,0.02); color: var(--text); }
.preview-note { font-size: 12px; color: var(--faint); margin-top: 10px; }

.foot { text-align: center; margin-top: 30px; color: var(--faint); font-size: 13px; line-height: 1.6; }

.toast {
  position: fixed; bottom: 22px; left: 50%; transform: translateX(-50%) translateY(20px);
  background: var(--panel); border: 1px solid var(--border); color: var(--text);
  padding: 11px 18px; border-radius: 10px; font-size: 14px; font-weight: 600;
  box-shadow: 0 12px 30px rgba(0,0,0,0.5); opacity: 0; pointer-events: none;
  transition: opacity 0.2s, transform 0.2s; z-index: 50;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }