:root {
  --bg: #0f1419;
  --card: #1a2332;
  --border: #2d3a4f;
  --text: #e6edf3;
  --muted: #8b949e;
  --primary: #58a6ff;
  --success: #3fb950;
  --warning: #d29922;
  --danger: #f85149;
}

* { box-sizing: border-box; }
body { margin: 0; font-family: 'Segoe UI', system-ui, sans-serif; background: var(--bg); color: var(--text); min-height: 100vh; line-height: 1.5; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: 1100px; margin: 0 auto; padding: 1rem 1.5rem; width: 100%; }
.container--wide { max-width: 100%; padding: 1rem; }
.page-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.5rem; flex-wrap: wrap; gap: 1rem; }
.page-header h1 { margin: 0; font-size: 1.5rem; font-weight: 600; }
.btn { display: inline-block; padding: 0.5rem 1rem; border-radius: 6px; border: 1px solid var(--border); background: var(--card); color: var(--text); cursor: pointer; font-size: 0.9rem; }
.btn:hover { background: var(--border); }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { opacity: 0.9; text-decoration: none; }
.btn-success { background: var(--success); border-color: var(--success); color: #fff; }
.btn-danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-sm { padding: 0.35rem 0.75rem; font-size: 0.85rem; }

/* Layout */
.layout { display: flex; min-height: 100vh; }
.sidebar {
  width: 220px;
  background: var(--card);
  border-right: 1px solid var(--border);
  padding: 1rem 0;
  transition: transform 0.3s ease, width 0.3s ease;
  overflow: hidden;
  position: relative;
}
.sidebar-collapsed {
  width: 0;
  transform: translateX(-100%);
  border-right: none;
  padding: 0;
}
.sidebar-title { display: block; padding: 0 1.25rem 1rem; font-weight: 600; color: var(--muted); text-decoration: none; }
.sidebar-title:hover { color: var(--text); text-decoration: none; background: rgba(255,255,255,0.03); }
.sidebar nav a { display: block; padding: 0.6rem 1.25rem; color: var(--muted); border-left: 3px solid transparent; white-space: nowrap; }
.sidebar nav a:hover { color: var(--text); background: rgba(255,255,255,0.05); text-decoration: none; }
.sidebar nav a.active { color: var(--primary); font-weight: 600; background: rgba(88, 166, 255, 0.12); border-left-color: var(--primary); text-decoration: none; }
.sidebar nav a.active:hover { color: var(--primary); background: rgba(88, 166, 255, 0.18); }
.main { flex: 1; padding: 1.5rem; transition: margin-left 0.3s ease; min-width: 0; overflow-x: auto; }

.header-bar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.5rem; padding-bottom: 1rem; border-bottom: 1px solid var(--border); }
.header-bar .user { color: var(--muted); font-size: 0.9rem; }
.header-bar form { display: inline; }

/* Tables */
.table-wrap { background: var(--card); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.table-wrap--scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.table-wrap--scroll table { min-width: 900px; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 0.75rem 1rem; text-align: left; border-bottom: 1px solid var(--border); color: var(--text); }
th { background: rgba(0,0,0,0.2); font-weight: 600; font-size: 0.85rem; color: var(--muted); }
tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(255,255,255,0.02); }
tfoot td { color: var(--text); background: rgba(0,0,0,0.25); }
.num { text-align: right; font-variant-numeric: tabular-nums; }

/* Forms */
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; margin-bottom: 0.35rem; font-size: 0.9rem; color: var(--muted); }
.form-group input, .form-group select, .form-group textarea { width: 100%; max-width: 400px; padding: 0.5rem 0.75rem; border: 1px solid var(--border); border-radius: 6px; background: var(--bg); color: var(--text); font-size: 0.95rem; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--primary); }
.form-actions { margin-top: 1.5rem; }
.form-actions .btn { margin-right: 0.5rem; }
.error { color: var(--danger); font-size: 0.9rem; margin-top: 0.5rem; }

/* Auth */
.auth-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 1rem; }
.auth-box { width: 100%; max-width: 380px; background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 2rem; }
.auth-box h1 { margin: 0 0 1.5rem; font-size: 1.35rem; text-align: center; }
.auth-box .form-group { margin-bottom: 1.25rem; }
.auth-box .form-group input { max-width: none; }
.auth-box .btn { width: 100%; padding: 0.65rem; margin-top: 0.5rem; }
.auth-box .error { margin-bottom: 1rem; }

/* Dashboard */
.dash-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 1rem; margin-bottom: 2rem; }
.dash-card { display: block; background: var(--card); border: 1px solid var(--border); border-radius: 8px; padding: 1.25rem; text-decoration: none; color: var(--text); font-weight: 500; transition: background 0.2s, border-color 0.2s; }
.dash-card:hover { background: rgba(255,255,255,0.05); border-color: var(--primary); color: var(--primary); text-decoration: none; }
.badge { display: inline-block; padding: 0.2rem 0.5rem; border-radius: 4px; font-size: 0.8rem; }
.badge-pending { background: var(--warning); color: #000; }
.badge-approved { background: var(--success); color: #fff; }
.badge-rejected { background: var(--danger); color: #fff; }

/* Paging footer < 1 > */
.paging-footer { display: flex; justify-content: center; align-items: center; gap: 0.5rem; margin-top: 1.5rem; padding: 1rem; border-top: 1px solid var(--border); color: var(--text); }
.paging-footer .paging-btn { display: inline-flex; align-items: center; justify-content: center; min-width: 2rem; padding: 0.35rem 0.5rem; border-radius: 6px; border: 1px solid var(--border); background: var(--card); color: var(--text); font-size: 1rem; text-decoration: none; }
.paging-footer .paging-btn:hover { background: var(--border); text-decoration: none; }
.paging-footer .paging-btn[aria-disabled="true"] { pointer-events: none; opacity: 0.4; cursor: default; }
.paging-footer .paging-current { padding: 0 0.75rem; font-weight: 600; color: var(--primary); }

/* 계층 테이블 (영업자 등록 목록) */
.hierarchy-table .hierarchy-cell { display: flex; align-items: center; gap: 0.25rem; }
.hierarchy-toggle { cursor: pointer; color: var(--success); font-size: 0.75rem; user-select: none; min-width: 1rem; }
.hierarchy-toggle-empty { display: inline-block; min-width: 1rem; }
.hierarchy-login { font-weight: 500; }

/* 출금 신청 리스트: 글자 색 보장, 모달 오버레이 */
.withdrawal-table-wrap th,
.withdrawal-table-wrap td { color: var(--text); }
.withdrawal-summary-card,
.withdrawal-summary-card .num { color: var(--text); }
.withdrawal-modal-overlay { display: none; }
.withdrawal-modal-overlay[aria-hidden="false"] { display: flex !important; }
.withdrawal-modal-content label,
.withdrawal-modal-content input,
.withdrawal-modal-content small { color: var(--text); }
.withdrawal-modal-content input::placeholder { color: var(--muted); }

/* 날짜 입력: 기본 달력 아이콘 숨기고, 밝은 커스텀 아이콘 표시 */
input[type="date"],
input[type="datetime-local"],
input[type="month"],
input[type="time"],
.input-date {
  color-scheme: dark !important;
  padding-right: 2.25rem !important;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%23e6edf3' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='4' width='18' height='18' rx='2' ry='2'%3E%3C/rect%3E%3Cline x1='16' y1='2' x2='16' y2='6'%3E%3C/line%3E%3Cline x1='8' y1='2' x2='8' y2='6'%3E%3C/line%3E%3Cline x1='3' y1='10' x2='21' y2='10'%3E%3C/line%3E%3C/svg%3E") !important;
  background-repeat: no-repeat !important;
  background-position: right 0.5rem center !important;
  background-size: 1.25rem !important;
}
input[type="date"]::-webkit-calendar-picker-indicator,
input[type="datetime-local"]::-webkit-calendar-picker-indicator,
input[type="month"]::-webkit-calendar-picker-indicator,
input[type="time"]::-webkit-calendar-picker-indicator,
.input-date::-webkit-calendar-picker-indicator {
  position: absolute !important;
  right: 0 !important;
  width: 100% !important;
  height: 100% !important;
  margin: 0 !important;
  padding: 0 !important;
  opacity: 0 !important;
  cursor: pointer !important;
}
.form-group input[type="date"],
.form-group input[type="datetime-local"],
.form-group input[type="month"],
.form-group input[type="time"],
.form-group .input-date {
  position: relative !important;
}

/* ========== 반응형 (모바일·태블릿) ========== */
@media (max-width: 768px) {
  .container { padding: 0.75rem 1rem; }
  .container--wide { padding: 0.75rem 1rem; }
  .page-header { flex-direction: column; align-items: flex-start; gap: 0.75rem; }
  .page-header h1 { font-size: 1.25rem; }
  .main { padding: 1rem; overflow-x: hidden; }
  .header-bar { flex-wrap: wrap; gap: 0.5rem; }
  .header-bar .user { font-size: 0.85rem; max-width: 180px; overflow: hidden; text-overflow: ellipsis; }
  .form-group input, .form-group select, .form-group textarea { max-width: none; }
  .filter-form { flex-direction: column; align-items: stretch !important; }
  .filter-form .form-group { max-width: none; }
  .table-wrap--scroll { margin: 0 -1rem; border-radius: 0; border-left: none; border-right: none; }
  .table-wrap--scroll table { min-width: 800px; font-size: 0.85rem; }
  .table-wrap--scroll th, .table-wrap--scroll td { padding: 0.5rem 0.6rem; }
  .btn { padding: 0.5rem 0.75rem; font-size: 0.875rem; }
  .btn-sm { padding: 0.3rem 0.6rem; font-size: 0.8rem; min-height: 36px; }
  #sidebarToggle { min-width: 44px; min-height: 44px; }
}

/* 모바일: 사이드바 오버레이 */
@media (max-width: 768px) {
  .sidebar {
    position: fixed !important;
    top: 0;
    left: 0;
    height: 100vh;
    width: 260px !important;
    z-index: 1001;
    transform: translateX(-100%);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: none;
  }
  .sidebar.sidebar-open {
    transform: translateX(0) !important;
    box-shadow: 4px 0 20px rgba(0,0,0,0.4);
  }
  .sidebar-collapsed {
    transform: translateX(-100%) !important;
    width: 260px !important;
  }
  .sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
  }
  .sidebar-overlay.visible {
    display: block;
  }
  .main { margin-left: 0 !important; }
}

@media (min-width: 769px) {
  .sidebar-overlay { display: none !important; }
}