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

body {
  font-family: 'Noto Sans Devanagari', Arial, sans-serif;
  background: var(--paper-bg);
  min-height: 100vh;
  color: var(--text-main);
}

.sticky-top { position: sticky; top: 0; z-index: 500; }
.app-header {
  background: var(--header-bg);
  color: white;
  padding: 10px 16px 8px;
  border-bottom: 4px solid var(--accent);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}
.app-header h1 { font-size: 22px; font-weight: 700; letter-spacing: 1px; }
.app-header p { font-size: 11px; opacity: 0.85; margin-top: 2px; }

.theme-switcher { display: flex; gap: 6px; }
.theme-btn {
  width: 26px; height: 26px; border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.5); cursor: pointer;
}
.theme-btn.active, .theme-btn:hover { border-color: white; transform: scale(1.1); }
.theme-btn[data-t="classic"] { background: linear-gradient(135deg, #fdf6e3, #d4c5a9); }
.theme-btn[data-t="dark"] { background: linear-gradient(135deg, #1e1e2e, #f0c040); }
.theme-btn[data-t="white"] { background: linear-gradient(135deg, #fff, #1565c0); }

.user-bar { display: flex; align-items: center; gap: 8px; }
.user-bar .user-name { font-size: 13px; opacity: 0.95; }
.user-bar .logout-btn,
.user-bar .admin-nav-link {
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.35);
  color: white;
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
}
.user-bar .logout-btn:hover,
.user-bar .admin-nav-link:hover { background: rgba(255,255,255,0.28); }

.admin-tabs {
  display: flex;
  background: var(--tab-bg);
  overflow-x: auto;
  scrollbar-width: none;
}
.admin-tabs::-webkit-scrollbar { display: none; }
.admin-tab-btn {
  flex: 0 0 auto;
  padding: 10px 16px;
  border: none;
  background: transparent;
  color: var(--text-main);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  border-bottom: 3px solid transparent;
  white-space: nowrap;
}
.admin-tab-btn.active {
  border-bottom-color: var(--accent);
  color: var(--accent);
}

.content { background: var(--paper); padding: 12px 16px; min-height: 70vh; }
.admin-panel { display: none; }
.admin-panel.active { display: block; }

.bill-paper {
  background: var(--paper);
  border: 1px solid var(--border-light);
  border-radius: 6px;
  padding: 16px;
  margin-bottom: 16px;
  box-shadow: 0 2px 8px var(--shadow);
}

.form-group { margin-bottom: 12px; }
label { font-size: 12px; color: var(--text-muted); display: block; margin-bottom: 3px; }
input, select, textarea {
  width: 100%;
  border: none;
  border-bottom: 1.5px solid var(--input-border);
  background: transparent;
  font-size: 17px;
  color: var(--text-main);
  padding: 4px 2px;
  outline: none;
}
input:focus, select:focus { border-bottom-color: var(--accent2); }
.row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; }

.btn {
  padding: 8px 16px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
}
.btn-add { background: var(--accent2); color: white; }
.btn-del { background: #e74c3c; color: white; padding: 4px 10px; font-size: 11px; }
.btn-save { background: var(--green); color: white; }
.btn-row { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }

.section-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  border-bottom: 2px solid var(--accent);
  padding-bottom: 6px;
  margin-bottom: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.record-card {
  background: var(--card-bg);
  border: 1px solid var(--border-light);
  border-left: 4px solid var(--accent2);
  border-radius: 4px;
  padding: 10px 14px;
  margin-bottom: 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}
.record-card .rc-name { font-size: 15px; font-weight: 700; }
.record-card .rc-meta { font-size: 12px; color: var(--text-muted); margin-top: 2px; }

.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-muted);
  font-size: 16px;
}

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--green);
  color: white;
  padding: 10px 18px;
  border-radius: 8px;
  font-weight: 700;
  z-index: 3000;
  opacity: 0;
  transition: all 0.25s;
  max-width: 90vw;
}
.toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }

.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  z-index: 1500;
  overflow-y: auto;
}
.modal-overlay.show {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 30px;
}
.modal-box {
  background: var(--paper);
  border-radius: 8px;
  padding: 18px;
  width: min(640px, 94vw);
  position: relative;
  box-shadow: 0 8px 30px rgba(0,0,0,0.25);
  margin-bottom: 40px;
}
.modal-close {
  position: absolute;
  top: 8px;
  right: 10px;
  border: none;
  background: transparent;
  font-size: 18px;
  cursor: pointer;
  color: var(--text-muted);
}

.perm-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px 10px;
}
.perm-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  cursor: pointer;
  padding: 4px 0;
}
.perm-item input[type="checkbox"] { width: 16px; height: 16px; accent-color: var(--accent2); }

.perm-group {
  margin-bottom: 12px;
  border: 1px solid var(--border-light);
  border-radius: 6px;
  padding: 10px 12px;
  background: var(--card-bg);
}
.perm-group-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--accent2);
  margin-bottom: 8px;
}

.user-card {
  background: var(--card-bg);
  border: 1px solid var(--border-light);
  border-radius: 6px;
  padding: 12px 14px;
  margin-bottom: 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}
.user-card .uc-role {
  display: inline-block;
  margin-top: 4px;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 700;
}
.uc-role-admin { background: rgba(231,76,60,0.15); color: var(--accent); }
.uc-role-sales { background: rgba(21,101,192,0.15); color: var(--accent2); }

.preset-row { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 10px; }
.preset-btn {
  padding: 5px 10px;
  border: 1.5px solid var(--border-light);
  border-radius: 6px;
  background: var(--card-bg);
  color: var(--text-main);
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}
.preset-btn:hover { border-color: var(--accent2); color: var(--accent2); }

.ps-preset-btn {
  padding: 6px 14px;
  border: 2px solid var(--border-light);
  border-radius: 6px;
  background: var(--card-bg);
  color: var(--text-main);
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
}
.ps-preset-btn:hover { border-color: var(--accent2); color: var(--accent2); }
.ps-preset-btn.active { border-color: var(--accent2); background: var(--accent2); color: white; }

.gate-screen {
  display: none;
  min-height: 60vh;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px 16px;
}
.gate-screen.show { display: flex; }

@media (max-width: 700px) {
  .row-2, .row-3, .perm-grid { grid-template-columns: 1fr; }
  .content { padding: 10px; }
  .app-header h1 { font-size: 18px; }
}