@import url('https://fonts.googleapis.com/css2?family=LINE+Seed+JP&display=swap');

:root {
  /* Colors */
  --primary-color: #2563eb;
  --primary-hover: #1d4ed8;
  --secondary-color: #64748b;
  --bg-color: #f1f5f9;
  --surface-color: #ffffff;
  --text-main: #0f172a;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --border-color: #e2e8f0;
  --danger-color: #ef4444;
  --success-color: #10b981;
  --warning-color: #f59e0b;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --input-height: 3rem;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);

  /* Transitions */
  --transition: all 0.2s ease-in-out;
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "LINE Seed JP", sans-serif;
  font-weight: 400;
  font-style: normal;
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: 100%;
}

/* Utilities */
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-start { align-items: flex-start; }
.items-center { align-items: center; }
.justify-end { justify-content: flex-end; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.block { display: block; }
.w-full { width: 100%; }
.h-full { height: 100%; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mt-8 { margin-top: 2rem; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.ml-1 { margin-left: 0.25rem; }
.ml-2 { margin-left: 0.5rem; }
.m-0 { margin: 0; }
.pl-5 { padding-left: 1.25rem; }
.pt-4 { padding-top: 1rem; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-4 { padding-top: 1rem; padding-bottom: 1rem; }
.py-8 { padding-top: 2rem; padding-bottom: 2rem; }
.text-sm { font-size: 0.875rem; }
.text-xs { font-size: 0.75rem; }
.font-bold { font-weight: 700; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }
.text-primary { color: var(--primary-color); }
.text-warning { color: var(--warning-color); }
.underline { text-decoration: underline; }
.cursor-pointer { cursor: pointer; }
.hidden-mobile { display: none; }
.border-t { border-top-width: 1px; border-top-style: solid; }
.border-gray-100 { border-color: #f3f4f6; }

@media (min-width: 768px) {
  .hidden-mobile { display: block; }
  .hidden-desktop { display: none; }
}

/* Components */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
  font-size: 0.95rem;
}

.btn.btn-sm {
  padding: 0.5rem 0.9rem;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
}

.btn-primary {
  background-color: var(--primary-color);
  color: white;
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background-color: transparent;
  border-color: var(--border-color);
  color: var(--text-main);
}

.btn-outline:hover {
  background-color: var(--bg-color);
  border-color: var(--text-secondary);
}

.btn-danger {
  background-color: var(--danger-color);
  color: white;
}

.btn-block {
  width: 100%;
}

.input-group {
  margin-bottom: 1rem;
}

.label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-main);
  font-size: 0.9rem;
}

.input {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background-color: var(--surface-color);
  transition: var(--transition);
  color: var(--text-main);
}

/* 入力欄と同じ高さに揃える */
.btn-input-height {
  height: var(--input-height, 3rem);
  padding: 0 1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  line-height: 1.2;
  text-decoration: none;
}

/* 工賃計算フィルタ: ラベル行と入力・ボタン行を分け、入力とボタンを同列に */
.wage-filter {
  display: grid;
  grid-template-columns: 200px 160px 1fr;
  gap: 0.25rem 1rem;
  align-items: end;
}
.wage-filter-labels { display: contents; }
.wage-filter-inputs { display: contents; }
.wage-filter-input {
  width: 100%;
  min-width: 0;
  height: var(--input-height, 3rem);
  box-sizing: border-box;
}
/* セレクトはブラウザ描画で下が切れやすいため余裕を持たせる */
select.wage-filter-input {
  padding-top: 0.65rem;
  padding-bottom: 0.65rem;
  line-height: 1.35;
}
.wage-filter-buttons {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.card {
  background-color: var(--surface-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 1.5rem;
  border: 1px solid var(--border-color);
}

.support-items-grid {
  display: grid;
  gap: 0.75rem;
}

@media (min-width: 960px) {
  .support-items-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.support-add-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.alert {
  padding: 1rem;
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.alert-danger {
  background-color: #fef2f2;
  border: 1px solid #fecaca;
  color: #991b1b;
}

/* Login Page Specifics */
.login-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #f8fafc;
  padding: 1rem;
}

.login-card {
  width: 100%;
  max-width: 400px;
  background: white;
  padding: 2.5rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.login-header {
  text-align: center;
  margin-bottom: 2rem;
}

.login-logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary-color);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

/* Dashboard Layout */
.app-container {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: 260px;
  background-color: var(--surface-color);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  position: fixed;
  height: 100vh;
  z-index: 50;
  transition: transform 0.3s ease;
  left: 0;
}

.sidebar-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.sidebar-logo {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.sidebar-nav {
  flex: 1;
  padding: 1.5rem 1rem;
  overflow-y: auto;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 0.25rem;
  transition: var(--transition);
}

.nav-link:hover {
  background-color: #f1f5f9;
  color: var(--text-main);
}

.nav-link.active {
  background-color: #eff6ff;
  color: var(--primary-color);
}

.sidebar-footer {
  padding: 1rem;
  border-top: 1px solid var(--border-color);
}

/* Main Content */
.main-wrapper {
  flex: 1;
  margin-left: 260px; /* Sidebar width */
  display: flex;
  flex-direction: column;
  min-width: 0;
  transition: margin-left 0.3s ease;
}

.top-bar {
  height: 64px;
  background-color: var(--surface-color);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  position: sticky;
  top: 0;
  z-index: 40;
}

.page-content {
  padding: 2rem;
  flex: 1;
}

/* Mobile Responsiveness */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-main);
}

.mobile-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.5);
  z-index: 45;
}

@media (max-width: 768px) {
  .app-container {
    flex-direction: column;
  }
  
  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .main-wrapper {
    margin-left: 0;
  }

  .mobile-menu-toggle {
    display: block;
    margin-right: 1rem;
  }

  .top-bar {
    padding: 0 1rem;
  }

  .page-content {
    padding: 1rem;
  }

  .mobile-overlay.open {
    display: block;
  }
}

/* Dashboard Specifics */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.stat-card {
  padding: 1.5rem;
  background: white;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}

.stat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.stat-title {
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
}

.stat-value {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--text-main);
}

.stat-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #eff6ff;
  color: var(--primary-color);
}

/* Tables */
.table-container {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  background: white;
}

.table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  text-align: left;
}

.table th {
  background-color: transparent;
  padding: 1rem 1.5rem;
  font-weight: 500;
  color: var(--text-muted);
  font-size: 0.8rem;
  border-bottom: none;
  background-image: linear-gradient(to right, #e2e8f0 0%, #e2e8f0 100%);
  background-repeat: no-repeat;
  background-position: center bottom;
  background-size: calc(100% - 3rem) 1px;
  white-space: nowrap;
}

.table td {
  padding: 1.25rem 1.5rem;
  border-bottom: none;
  color: var(--text-main);
  font-size: 0.95rem;
  vertical-align: middle;
  white-space: nowrap;
}

.table tbody tr:not(:last-child) {
  background-image: linear-gradient(to right, #cbd5e1 0%, #cbd5e1 100%);
  background-repeat: no-repeat;
  background-position: center bottom;
  background-size: calc(100% - 3rem) 1px;
}

.table tr:hover {
  background-color: #f8fafc;
}

.table tr:last-child td {
  border-bottom: none;
}

/* Status Badges */
.status-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.status-valid {
  background-color: #dcfce7;
  color: #166534;
}

.status-invalid {
  background-color: #fee2e2;
  color: #991b1b;
}

.status-pending {
  background-color: #fef3c7;
  color: #92400e;
}

/* Custom Checkbox */
.custom-checkbox {
  width: 18px;
  height: 18px;
  border: 2px solid #cbd5e1;
  border-radius: 4px;
  cursor: pointer;
  appearance: none;
  position: relative;
  vertical-align: middle;
  transition: all 0.2s;
}

.custom-checkbox:checked {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
}

.custom-checkbox:checked::after {
  content: '';
  position: absolute;
  left: 5px;
  top: 2px;
  width: 5px;
  height: 9px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

/* Avatar */
.avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: #e2e8f0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.875rem;
  cursor: pointer;
}

/* Icon Buttons */
.btn-icon {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 50%;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-icon:hover {
  background-color: #f1f5f9;
  color: var(--text-main);
}