:root {
  --bg: #0d1117;
  --card: #161b22;
  --text: #c9d1d9;
  --accent: #58a6ff;
  --border: #30363d;
  --success: #22c55e;
  --danger: #ef4444;
}

* { box-sizing: border-box; margin: 0; padding: 0; font-family: "Segoe UI", system-ui, sans-serif; }

body {
  background: linear-gradient(135deg, #0d1117, #010409);
  color: var(--text);
  min-height: 100vh;
}

/* ===== GATE ===== */
#gate {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.gate-box {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px 32px;
  width: 90%;
  max-width: 380px;
  text-align: center;
  animation: fadeIn 0.4s ease;
}

.gate-icon { font-size: 2.4rem; margin-bottom: 10px; }
.gate-box h2 { color: #fff; margin-bottom: 6px; font-size: 1.4rem; }
.gate-sub { font-size: 0.85rem; opacity: 0.55; margin-bottom: 20px; }

.pw-wrap { position: relative; margin-bottom: 6px; }
.pw-wrap input {
  width: 100%;
  padding: 11px 42px 11px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: #fff;
  font-size: 14px;
  outline: none;
}
.pw-wrap input:focus { border-color: var(--accent); }
#gateToggle {
  position: absolute;
  right: 10px; top: 50%;
  transform: translateY(-50%);
  background: none; border: none;
  cursor: pointer; font-size: 1.1rem;
}

.err-text { color: var(--danger); font-size: 13px; min-height: 18px; margin-bottom: 6px; }

.gate-actions { display: flex; gap: 10px; margin-top: 14px; }

/* ===== BUTTONS ===== */
.btn {
  flex: 1;
  padding: 10px 18px;
  border-radius: 8px;
  border: none;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
  display: inline-block;
  transition: filter 0.15s, transform 0.15s;
}
.btn:hover { filter: brightness(1.12); transform: translateY(-1px); }
.btn.primary   { background: var(--accent); color: #0d1117; }
.btn.normal    { background: var(--success); color: #000; }
.btn.secondary { background: #facc15; color: #000; }
.btn.danger    { background: var(--danger); color: #fff; }
.btn.ghost     { background: #30363d; color: var(--text); }
.btn.small     { padding: 6px 14px; font-size: 12px; flex: none; }

/* ===== TOPBAR ===== */
.topbar {
  height: 60px;
  padding: 0 24px;
  background: #0f0f0f;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky; top: 0; z-index: 10;
  font-size: 18px; font-weight: 700; color: #fff;
}
.back-btn { font-size: 13px; color: var(--text); text-decoration: none; opacity: 0.65; }
.back-btn:hover { opacity: 1; }

/* ===== CONTAINER ===== */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* ===== STATUS BAR ===== */
.status {
  padding: 10px 16px;
  border-radius: 8px;
  font-size: 14px; font-weight: 600;
}
.status.info    { background: #1c2333; border: 1px solid var(--border); color: var(--text); }
.status.success { background: #0d2818; border: 1px solid #22c55e55; color: var(--success); }
.status.error   { background: #2d0f0f; border: 1px solid #ef444455; color: var(--danger); }

/* ===== CARD ===== */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px;
}
.card h3 { color: var(--accent); font-size: 15px; margin-bottom: 16px; }

/* ===== SETUP ===== */
.setup-grid { display: flex; flex-direction: column; gap: 10px; }
.setup-grid input {
  width: 100%;
  padding: 11px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: #fff;
  font-size: 14px; outline: none;
}
.setup-grid input:focus { border-color: var(--accent); }
.setup-btns { display: flex; gap: 10px; }

/* ===== ACTIONS ===== */
.action-row { display: flex; gap: 10px; flex-wrap: wrap; }
.action-row .btn { flex: none; }

/* ===== COUNT BADGE ===== */
.count-badge {
  background: var(--accent); color: #0d1117;
  border-radius: 20px; padding: 2px 10px;
  font-size: 12px; font-weight: 700; margin-left: 8px;
}

/* ===== TABLE ===== */
.table-scroll { overflow-x: auto; overflow-y: auto; max-height: 520px; }

.data-table { width: max-content; min-width: 100%; border-collapse: collapse; }
.data-table th, .data-table td {
  border: 1px solid var(--border);
  padding: 8px 12px;
  white-space: nowrap;
  font-size: 13px;
}
.data-table th {
  background: var(--bg); color: var(--accent);
  position: sticky; top: 0; z-index: 2;
}
.data-table .stt { text-align: center; color: #555; width: 46px; }
.data-table .ts-cell { color: #666; font-size: 12px; }

/* ===== EDITABLE CELLS ===== */
.editable { cursor: text; outline: none; transition: background 0.15s; }
.editable:hover  { background: rgba(88,166,255,0.07); }
.editable:focus  { background: rgba(88,166,255,0.14); box-shadow: inset 0 0 0 1px var(--accent); }
.editable.saving { opacity: 0.45; pointer-events: none; }
.editable.saved  { background: rgba(34,197,94,0.15); }

/* ===== DELETE BUTTON ===== */
.btn-del {
  background: var(--danger); color: #fff;
  border: none; border-radius: 6px;
  padding: 3px 10px; cursor: pointer;
  font-weight: 700; font-size: 14px;
  transition: filter 0.15s;
}
.btn-del:hover { filter: brightness(1.2); }

.empty-msg { color: #555; font-size: 14px; text-align: center; padding: 32px; }

/* ===== GUIDE ===== */
.guide-header {
  display: flex; align-items: center;
  justify-content: space-between;
  margin-bottom: 0;
}
.guide-header h3 { margin: 0; }

.guide-steps {
  margin: 18px 0 14px 22px;
  display: flex; flex-direction: column; gap: 8px;
  font-size: 14px; line-height: 1.7;
}
.guide-steps code {
  background: var(--bg); padding: 1px 6px;
  border-radius: 4px; color: var(--accent); font-family: monospace;
}

.code-block {
  position: relative;
  background: #020617;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 16px 16px 16px;
  overflow-x: auto;
}
.code-block pre {
  font-family: "Courier New", Consolas, monospace;
  font-size: 12px; line-height: 1.65;
  color: #c9d1d9; white-space: pre;
}
.copy-btn { position: absolute; top: 10px; right: 10px; }

/* ===== FORM ITEMS ===== */
.add-player-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.add-player-row input {
  flex: 1;
  padding: 9px 13px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: #fff;
  font-size: 14px;
  outline: none;
}
.add-player-row input:focus { border-color: var(--accent); }

.form-items-list { display: flex; flex-direction: column; }

.select-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 4px 10px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 4px;
}
.select-all-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  cursor: pointer;
  user-select: none;
}
.select-all-label input[type="checkbox"] { width: 15px; height: 15px; cursor: pointer; accent-color: var(--accent); }

.form-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 4px;
  border-bottom: 1px solid #1e2530;
  transition: background 0.15s;
}
.form-item:last-child { border-bottom: none; }
.form-item.selected { background: rgba(88,166,255,0.07); border-radius: 6px; }
.form-item.locked { opacity: 0.45; }

.item-check { width: 15px; height: 15px; cursor: pointer; accent-color: var(--accent); flex-shrink: 0; }
.lock-icon { font-size: 13px; }
.item-title { flex: 1; font-size: 14px; }
.item-badge {
  font-size: 11px; color: #555;
  background: #1c2333; padding: 2px 8px;
  border-radius: 10px; white-space: nowrap;
}

.item-input {
  flex: 1;
  padding: 7px 11px;
  border-radius: 7px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: #fff;
  font-size: 14px;
  outline: none;
}
.item-input:focus { border-color: var(--accent); }
.item-input.saved { border-color: var(--success); }

/* ===== MODAL ===== */
.modal {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.72);
  display: flex; align-items: center; justify-content: center;
  z-index: 100;
}
.modal-box {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px;
  width: 90%; max-width: 460px;
  max-height: 80vh; overflow-y: auto;
  animation: fadeIn 0.25s ease;
}
.modal-box h3 { color: #fff; margin-bottom: 6px; }
.modal-sub { font-size: 12px; opacity: 0.55; margin-bottom: 16px; }

.add-form { display: flex; flex-direction: column; gap: 10px; margin-bottom: 16px; }
.form-field label { display: block; font-size: 12px; color: #888; margin-bottom: 4px; }
.form-field input {
  width: 100%; padding: 10px 12px;
  border-radius: 8px; border: 1px solid var(--border);
  background: var(--bg); color: #fff; font-size: 14px; outline: none;
}
.form-field input:focus { border-color: var(--accent); }

.modal-actions { display: flex; gap: 10px; }
.modal-actions .btn { flex: 1; }

/* ===== RESPONSIVE ===== */
@media (max-width: 600px) {
  .container { padding: 16px; }
  .action-row { flex-direction: column; }
  .setup-btns { flex-direction: column; }
  .topbar { padding: 0 16px; font-size: 15px; }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}