:root {
  --bg:        #0a0c0f;
  --bg2:       #111318;
  --bg3:       #181c23;
  --border:    #1f2530;
  --border2:   #2a3040;
  --text:      #c8d0de;
  --text2:     #6b7a96;
  --text3:     #3d4a60;
  --accent:    #00d4ff;
  --accent2:   #0099cc;
  --green:     #00ff88;
  --green2:    #00cc6a;
  --purple:    #a78bfa;
  --amber:     #fbbf24;
  --red:       #ff4466;
  --mono:      'IBM Plex Mono', monospace;
  --sans:      'Space Grotesk', sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--mono);
  min-height: 100vh;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(0,0,0,0.07) 2px, rgba(0,0,0,0.07) 4px);
  pointer-events: none;
  z-index: 9999;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,212,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,212,255,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
  position: relative;
  z-index: 1;
}

/* ── Header ── */
.header {
  display: flex;
  align-items: flex-end;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.logo {
  font-size: 2.2rem;
  font-weight: 600;
  letter-spacing: -0.04em;
  color: var(--accent);
  text-shadow: 0 0 30px rgba(0,212,255,0.4);
  line-height: 1;
}
.logo span { color: var(--text2); }

.header-meta { display: flex; flex-direction: column; gap: 4px; padding-bottom: 2px; }

.version-tag {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--accent2);
  background: rgba(0,212,255,0.08);
  border: 1px solid rgba(0,212,255,0.2);
  padding: 2px 8px;
  border-radius: 3px;
  width: fit-content;
  text-transform: uppercase;
}

.subtitle { font-size: 11px; color: var(--text3); letter-spacing: 0.05em; }

/* ── Form panel ── */
.form-panel {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  position: relative;
}

.form-panel::before {
  content: '// target configuration';
  position: absolute;
  top: -9px;
  left: 16px;
  font-size: 10px;
  color: var(--text3);
  background: var(--bg2);
  padding: 0 8px;
  letter-spacing: 0.05em;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 1.25rem;
}

.field { display: flex; flex-direction: column; gap: 5px; }

.field label {
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--text2);
  text-transform: uppercase;
}

.field input {
  background: var(--bg3);
  border: 1px solid var(--border2);
  color: var(--text);
  font-family: var(--mono);
  font-size: 13px;
  padding: 8px 12px;
  border-radius: 4px;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
  height: 38px;
}

.field input::placeholder { color: var(--text3); }
.field input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(0,212,255,0.1); }
.field input:focus::placeholder { color: transparent; }

.form-actions { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 18px;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.05em;
  border-radius: 4px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.15s;
  text-transform: uppercase;
}

.btn-primary  { background: var(--accent); color: #000; border-color: var(--accent); }
.btn-primary:hover { background: #00eeff; box-shadow: 0 0 20px rgba(0,212,255,0.3); }
.btn-secondary { background: transparent; color: var(--text2); border-color: var(--border2); }
.btn-secondary:hover { border-color: var(--text2); color: var(--text); }
.btn-danger   { background: transparent; color: var(--text3); border-color: var(--border); }
.btn-danger:hover { border-color: var(--red); color: var(--red); }
.btn svg { width: 14px; height: 14px; flex-shrink: 0; }

/* ── Stats bar ── */
.stats-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity 0.3s, transform 0.3s;
}
.stats-bar.visible { opacity: 1; transform: none; }

.stat {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 8px 16px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.stat-val {
  font-size: 20px;
  font-weight: 600;
  color: var(--green);
  text-shadow: 0 0 12px rgba(0,255,136,0.3);
  line-height: 1;
}
.stat-lbl { font-size: 9px; color: var(--text3); letter-spacing: 0.1em; text-transform: uppercase; }

/* ── Output grid — start.me style columns ── */
.output-wrap {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px;
  align-items: start;
}

.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 4rem 2rem;
  color: var(--text3);
  font-size: 12px;
  letter-spacing: 0.05em;
  border: 1px dashed var(--border);
  border-radius: 6px;
}
.empty-state .big { font-size: 2rem; display: block; margin-bottom: 0.75rem; opacity: 0.3; }

/* ── Batch card ── */
.batch-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  animation: slideIn 0.25s ease both;
  display: flex;
  flex-direction: column;
}

@keyframes slideIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: none; }
}

.batch-card:nth-child(1) { animation-delay: 0.03s }
.batch-card:nth-child(2) { animation-delay: 0.06s }
.batch-card:nth-child(3) { animation-delay: 0.09s }
.batch-card:nth-child(4) { animation-delay: 0.12s }
.batch-card:nth-child(5) { animation-delay: 0.15s }
.batch-card:nth-child(6) { animation-delay: 0.18s }
.batch-card:nth-child(7) { animation-delay: 0.21s }
.batch-card:nth-child(8) { animation-delay: 0.24s }

/* ── Card header ── */
.batch-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: var(--bg3);
  border-bottom: 1px solid var(--border);
  gap: 8px;
}

.batch-left { display: flex; align-items: center; gap: 7px; min-width: 0; flex: 1; }

.batch-id {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--text3);
  background: var(--bg);
  border: 1px solid var(--border2);
  padding: 1px 6px;
  border-radius: 3px;
  flex-shrink: 0;
}

.batch-name {
  font-size: 11px;
  font-weight: 500;
  color: var(--text);
  letter-spacing: 0.02em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  cursor: default;
}

.batch-right { display: flex; align-items: center; gap: 6px; flex-shrink: 0; }

.count-pill {
  font-size: 9px;
  color: var(--text2);
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 1px 7px;
  border-radius: 10px;
}

.copy-batch-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: transparent;
  border: 1px solid var(--border2);
  border-radius: 3px;
  color: var(--text2);
  cursor: pointer;
  transition: all 0.15s;
}
.copy-batch-btn:hover { border-color: var(--accent); color: var(--accent); }
.copy-batch-btn.done  { border-color: var(--green); color: var(--green); }
.copy-batch-btn svg   { width: 10px; height: 10px; }

/* ── Pattern descriptor row ── */
.pattern-desc {
  margin: 8px 10px;
  padding: 8px 10px;

  display: flex;
  align-items: center;
  justify-content: center;

  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;

  color: var(--accent);

  background: rgba(0,212,255,.08);

  border: 1px solid rgba(0,212,255,.25);
  border-radius: 4px;

  text-shadow: 0 0 6px rgba(0,212,255,.2);
}

/* ── Vertical email list (start.me bookmark style) ── */
.email-list {
  display: flex;
  flex-direction: column;
}

.erow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 5px 12px;
  gap: 8px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background 0.1s;
  min-height: 28px;
}
.erow:last-child { border-bottom: none; }
.erow:hover { background: rgba(0,212,255,0.04); }

.erow-left {
  display: flex;
  align-items: center;
  gap: 7px;
  min-width: 0;
  flex: 1;
}

.erow-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

.erow-email {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--text);
  letter-spacing: 0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* dot + text color per type */
.erow.t-base    .erow-dot   { background: var(--accent); }
.erow.t-base    .erow-email { color: var(--accent); }
.erow.t-num     .erow-dot   { background: var(--green2); }
.erow.t-num     .erow-email { color: var(--text); }
.erow.t-alpha   .erow-dot   { background: var(--purple); }
.erow.t-alpha   .erow-email { color: var(--purple); }
.erow.t-pattern .erow-dot   { background: var(--amber); }
.erow.t-pattern .erow-email { color: var(--amber); }

/* copy icon — appears on hover */
.erow-copy {
  flex-shrink: 0;
  opacity: 0;
  color: var(--text3);
  transition: opacity 0.12s, color 0.12s;
  display: flex;
  align-items: center;
}
.erow-copy svg { width: 11px; height: 11px; }
.erow:hover .erow-copy { opacity: 1; }

/* copied state */
.erow.copied .erow-email { color: var(--green) !important; }
.erow.copied .erow-dot   { background: var(--green) !important; }
.erow.copied .erow-copy  { opacity: 1; color: var(--green); }

/* ── Expand button ── */
.expand-btn {
  display: block;
  width: 100%;
  padding: 5px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text3);
  background: transparent;
  border: none;
  border-top: 1px solid var(--border);
  cursor: pointer;
  transition: color 0.15s, background 0.15s;
  text-align: center;
}
.expand-btn:hover { color: var(--text); background: var(--bg3); }

/* ── Card footer legend ── */
.batch-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 5px 12px;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
}

.legend { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }

.legend-item {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 9px;
  color: var(--text3);
  letter-spacing: 0.04em;
}

.ldot { width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0; }
.hint { font-size: 9px; color: var(--text3); letter-spacing: 0.04em; }

/* ── Flash toast ── */
.flash {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--bg3);
  border: 1px solid var(--green);
  color: var(--green);
  font-family: var(--mono);
  font-size: 12px;
  padding: 8px 16px;
  border-radius: 4px;
  z-index: 10000;
  pointer-events: none;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.2s, transform 0.2s;
  letter-spacing: 0.05em;
}
.flash.show { opacity: 1; transform: none; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text3); }

/* ── Responsive ── */
@media (max-width: 600px) {
  .logo { font-size: 1.6rem; }
  .output-wrap { grid-template-columns: 1fr; }
}

/* ── Batch selector ── */
.batch-selector {
  margin-bottom: 1.25rem;
  border: 1px solid var(--border2);
  border-radius: 4px;
  overflow: hidden;
}

.batch-selector-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 12px;
  background: var(--bg3);
  border-bottom: 1px solid var(--border2);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text2);
}

.sel-toggle {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent2);
  background: transparent;
  border: 1px solid rgba(0,212,255,0.2);
  border-radius: 3px;
  padding: 2px 8px;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}
.sel-toggle:hover { color: var(--accent); border-color: var(--accent); }

.batch-checks {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  padding: 8px 10px;
  gap: 4px;
}

.bcheck {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 8px;
  border-radius: 3px;
  cursor: pointer;
  transition: background 0.1s;
  user-select: none;
}
.bcheck:hover { background: var(--bg3); }

.bcheck input[type=checkbox] {
  appearance: none;
  -webkit-appearance: none;
  width: 13px;
  height: 13px;
  border: 1px solid var(--border2);
  border-radius: 2px;
  background: var(--bg);
  cursor: pointer;
  flex-shrink: 0;
  position: relative;
  transition: background 0.12s, border-color 0.12s;
}
.bcheck input[type=checkbox]:checked {
  background: var(--accent);
  border-color: var(--accent);
}
.bcheck input[type=checkbox]:checked::after {
  content: '';
  position: absolute;
  left: 2px; top: 0px;
  width: 5px; height: 8px;
  border: 2px solid #000;
  border-top: none;
  border-left: none;
  transform: rotate(45deg);
}

.bcheck span {
  font-size: 11px;
  color: var(--text2);
  letter-spacing: 0.02em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.bcheck:has(input:checked) span { color: var(--text); }