/* ============================================
   QR 식수 관리시스템 - 메인 스타일
   ============================================ */

:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #dbeafe;
  --secondary: #10b981;
  --secondary-dark: #059669;
  --secondary-light: #d1fae5;
  --warning: #f59e0b;
  --warning-light: #fef3c7;
  --danger: #ef4444;
  --danger-light: #fee2e2;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --white: #ffffff;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.1), 0 4px 6px rgba(0,0,0,0.05);
  --shadow-xl: 0 20px 25px rgba(0,0,0,0.1), 0 10px 10px rgba(0,0,0,0.04);
  --radius: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --transition: all 0.2s ease;
  --font: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--gray-50);
  color: var(--gray-800);
  line-height: 1.6;
  min-height: 100vh;
}

/* ── 헤더 & 네비게이션 ── */
.app-header {
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--gray-900);
}

.logo-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--primary), #7c3aed);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.logo-text { font-size: 1.1rem; font-weight: 700; letter-spacing: -0.3px; }
.logo-sub { font-size: 0.7rem; color: var(--gray-400); font-weight: 400; }

.header-nav {
  display: flex;
  gap: 4px;
  margin-left: auto;
  align-items: center;
}

.nav-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--radius);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-600);
  transition: var(--transition);
  border: 1px solid transparent;
}

.nav-btn:hover {
  background: var(--gray-100);
  color: var(--gray-900);
}

.nav-btn.active {
  background: var(--primary-light);
  color: var(--primary);
  border-color: var(--primary-light);
}

.nav-btn .icon { font-size: 1rem; }

.nav-divider {
  width: 1px;
  height: 24px;
  background: var(--gray-200);
  margin: 0 4px;
}

/* ── 메인 레이아웃 ── */
.main-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: 32px 24px;
}

/* ── 카드 ── */
.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.card-header {
  padding: 20px 24px 16px;
  border-bottom: 1px solid var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--gray-900);
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-body { padding: 24px; }

/* ── 통계 카드 ── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}

.stat-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  padding: 22px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  cursor: default;
}

.stat-card:hover { box-shadow: var(--shadow-md); transform: translateY(-1px); }

.stat-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.stat-icon.blue  { background: var(--primary-light); }
.stat-icon.green { background: var(--secondary-light); }
.stat-icon.yellow{ background: var(--warning-light); }
.stat-icon.red   { background: var(--danger-light); }
.stat-icon.purple{ background: #ede9fe; }

.stat-info { flex: 1; min-width: 0; }
.stat-label { font-size: 0.78rem; color: var(--gray-500); font-weight: 500; margin-bottom: 2px; }
.stat-value { font-size: 1.7rem; font-weight: 800; color: var(--gray-900); line-height: 1.2; }
.stat-sub { font-size: 0.75rem; color: var(--gray-400); margin-top: 2px; }

/* ── 버튼 ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary   { background: var(--primary); color: var(--white); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(37,99,235,0.3); }
.btn-secondary { background: var(--secondary); color: var(--white); }
.btn-secondary:hover { background: var(--secondary-dark); transform: translateY(-1px); }
.btn-warning   { background: var(--warning); color: var(--white); }
.btn-danger    { background: var(--danger); color: var(--white); }
.btn-outline   { background: transparent; border: 1.5px solid var(--gray-300); color: var(--gray-700); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-light); }
.btn-ghost     { background: transparent; color: var(--gray-500); }
.btn-ghost:hover { background: var(--gray-100); color: var(--gray-700); }
.btn-sm { padding: 6px 14px; font-size: 0.8rem; }
.btn-lg { padding: 14px 28px; font-size: 1rem; }

/* ── 배지 ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-blue   { background: var(--primary-light); color: var(--primary); }
.badge-green  { background: var(--secondary-light); color: var(--secondary-dark); }
.badge-yellow { background: var(--warning-light); color: #92400e; }
.badge-red    { background: var(--danger-light); color: #991b1b; }
.badge-gray   { background: var(--gray-100); color: var(--gray-600); }
.badge-purple { background: #ede9fe; color: #6d28d9; }

/* ── 폼 요소 ── */
.form-group { margin-bottom: 18px; }

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid var(--gray-300);
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-family: var(--font);
  color: var(--gray-800);
  background: var(--white);
  transition: var(--transition);
  outline: none;
}

.form-control:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,99,235,0.1); }
.form-control:disabled { background: var(--gray-100); color: var(--gray-400); cursor: not-allowed; }

select.form-control { cursor: pointer; }

/* ── 테이블 ── */
.table-wrap { overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

thead th {
  padding: 12px 16px;
  text-align: left;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  background: var(--gray-50);
  border-bottom: 1px solid var(--gray-200);
}

tbody td {
  padding: 14px 16px;
  color: var(--gray-700);
  border-bottom: 1px solid var(--gray-100);
  vertical-align: middle;
}

tbody tr:hover { background: var(--gray-50); }
tbody tr:last-child td { border-bottom: none; }

/* ── 모달 ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.modal-overlay.show { opacity: 1; visibility: visible; }

.modal {
  background: var(--white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.95) translateY(10px);
  transition: var(--transition);
}

.modal-overlay.show .modal { transform: scale(1) translateY(0); }

.modal-header {
  padding: 24px 28px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--gray-100);
}

.modal-title { font-size: 1.1rem; font-weight: 700; color: var(--gray-900); }

.modal-close {
  width: 32px;
  height: 32px;
  border-radius: var(--radius);
  border: none;
  background: var(--gray-100);
  color: var(--gray-500);
  cursor: pointer;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.modal-close:hover { background: var(--gray-200); color: var(--gray-800); }

.modal-body { padding: 24px 28px; }
.modal-footer { padding: 16px 28px 24px; display: flex; gap: 10px; justify-content: flex-end; border-top: 1px solid var(--gray-100); }

/* ── 알림 토스트 ── */
#toast-container {
  position: fixed;
  top: 80px;
  right: 24px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 280px;
  max-width: 380px;
  border-left: 4px solid var(--primary);
  animation: slideIn 0.3s ease;
}

.toast.success { border-color: var(--secondary); }
.toast.error   { border-color: var(--danger); }
.toast.warning { border-color: var(--warning); }

.toast-icon { font-size: 1.2rem; }
.toast-msg  { font-size: 0.875rem; font-weight: 500; color: var(--gray-800); flex: 1; }

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to   { transform: translateX(0); opacity: 1; }
}

/* ── 페이지 타이틀 ── */
.page-header {
  margin-bottom: 28px;
}

.page-title {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--gray-900);
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-subtitle { font-size: 0.9rem; color: var(--gray-500); }

/* ── QR 코드 박스 ── */
.qr-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.qr-box {
  background: var(--white);
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* ── 식사 유형 뱃지 색상 ── */
.meal-breakfast { background: #fef3c7; color: #92400e; }
.meal-lunch     { background: #d1fae5; color: #065f46; }
.meal-dinner    { background: #ede9fe; color: #4c1d95; }

/* ── 진행률 바 ── */
.progress-bar-wrap {
  background: var(--gray-200);
  border-radius: 99px;
  height: 8px;
  overflow: hidden;
  width: 100%;
}

.progress-bar {
  height: 100%;
  border-radius: 99px;
  background: var(--primary);
  transition: width 0.4s ease;
}

.progress-bar.green  { background: var(--secondary); }
.progress-bar.yellow { background: var(--warning); }
.progress-bar.red    { background: var(--danger); }

/* ── 빈 상태 ── */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--gray-400);
}

.empty-state .empty-icon { font-size: 3.5rem; margin-bottom: 12px; }
.empty-state p { font-size: 0.9rem; }

/* ── 로딩 스피너 ── */
.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--gray-200);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.loading-overlay {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 40px;
  color: var(--gray-500);
  font-size: 0.875rem;
}

/* ── 스캔 페이지 특화 ── */
.scan-area {
  border: 3px dashed var(--gray-300);
  border-radius: var(--radius-xl);
  padding: 32px;
  text-align: center;
  background: var(--gray-50);
  transition: var(--transition);
}

.scan-area.scanning {
  border-color: var(--primary);
  background: var(--primary-light);
}

.scan-result-card {
  border-radius: var(--radius-xl);
  padding: 28px;
  text-align: center;
  margin-top: 20px;
}

.scan-result-card.success { background: var(--secondary-light); border: 2px solid var(--secondary); }
.scan-result-card.already { background: var(--warning-light); border: 2px solid var(--warning); }
.scan-result-card.error   { background: var(--danger-light);  border: 2px solid var(--danger); }

/* ── 반응형 ── */
@media (max-width: 768px) {
  .main-content { padding: 20px 16px; }
  .header-inner { padding: 0 16px; }
  .logo-text { display: none; }
  .nav-btn span.label { display: none; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .stat-card  { padding: 16px; }
  .stat-value { font-size: 1.4rem; }
  .page-title { font-size: 1.3rem; }
  .card-body  { padding: 16px; }
  .card-header { padding: 14px 16px 12px; }
  .modal { max-height: 95vh; }
  .modal-header, .modal-body, .modal-footer { padding-left: 20px; padding-right: 20px; }
  table { font-size: 0.8rem; }
  thead th, tbody td { padding: 10px 12px; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
}

/* ── 유틸리티 ── */
.text-center { text-align: center; }
.text-right  { text-align: right; }
.d-flex      { display: flex; }
.align-center{ align-items: center; }
.gap-8       { gap: 8px; }
.gap-12      { gap: 12px; }
.gap-16      { gap: 16px; }
.flex-1      { flex: 1; }
.mt-8  { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-8  { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.fw-600 { font-weight: 600; }
.fw-700 { font-weight: 700; }
.fs-sm  { font-size: 0.85rem; }
.c-gray { color: var(--gray-500); }

/* ── QR 스캐너 영역 ── */
#qr-video-container {
  position: relative;
  width: 100%;
  max-width: 420px;
  margin: 0 auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #000;
}

#qr-video {
  width: 100%;
  display: block;
}

.qr-scan-line {
  position: absolute;
  left: 10%;
  right: 10%;
  height: 3px;
  background: rgba(37,99,235,0.8);
  box-shadow: 0 0 8px rgba(37,99,235,0.8);
  animation: scanLine 2s linear infinite;
}

.qr-corners {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.qr-corners::before,
.qr-corners::after {
  content: '';
  position: absolute;
  width: 32px;
  height: 32px;
  border-color: var(--primary);
  border-style: solid;
}

.qr-corners::before { top: 12px; left: 12px; border-width: 3px 0 0 3px; border-radius: 4px 0 0 0; }
.qr-corners::after  { bottom: 12px; right: 12px; border-width: 0 3px 3px 0; border-radius: 0 0 4px 0; }

@keyframes scanLine {
  0%   { top: 10%; }
  50%  { top: 85%; }
  100% { top: 10%; }
}

/* ── 탭 ── */
.tabs {
  display: flex;
  gap: 4px;
  background: var(--gray-100);
  padding: 4px;
  border-radius: 10px;
}

.tab-btn {
  flex: 1;
  padding: 8px 16px;
  border: none;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-500);
  background: transparent;
  cursor: pointer;
  transition: var(--transition);
}

.tab-btn.active {
  background: var(--white);
  color: var(--primary);
  font-weight: 700;
  box-shadow: var(--shadow-sm);
}

/* ── 인쇄용 QR ── */
@media print {
  .app-header, .header-nav, .btn { display: none !important; }
  .card { box-shadow: none; border: 1px solid #ccc; }
}