/* 모바일 테니스 앱 스타일 */

:root {
  --primary-color: #28a745;
  --secondary-color: #6c757d;
  --danger-color: #dc3545;
  --warning-color: #ffc107;
  --info-color: #17a2b8;
  --light-color: #f8f9fa;
  --dark-color: #343a40;
  --tennis-green: #2e7d32;
  --tennis-light: #43a047;
  --border-radius: 12px;
  --spacing: 16px;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
    sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background-color: #f5f5f5;
  line-height: 1.6;
  padding-bottom: calc(84px + env(safe-area-inset-bottom, 0px)); /* 하단 네비게이션 공간 */
}

/* 컨테이너 */
.container {
  max-width: 100%;
  padding: var(--spacing);
}

/* 헤더 */
.mobile-header {
  background: linear-gradient(135deg, var(--primary-color) 0%, #20873a 100%);
  color: white;
  padding: 1rem var(--spacing);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0;
}

.header-user {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
}

.logout-btn {
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: white;
  padding: 0.4rem 0.8rem;
  border-radius: 20px;
  text-decoration: none;
  font-size: 0.85rem;
  transition: all 0.3s;
}

.logout-btn:hover {
  background: rgba(255, 255, 255, 0.3);
}

/* 로그인 페이지 */
.login-container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: var(--spacing);
  background: linear-gradient(135deg, var(--primary-color) 0%, #20873a 100%);
}

.login-card {
  background: white;
  border-radius: var(--border-radius);
  padding: 2rem;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

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

.login-logo h1 {
  color: var(--primary-color);
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.login-logo p {
  color: var(--secondary-color);
  font-size: 0.9rem;
}

/* 통계 카드 */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing);
  margin-bottom: var(--spacing);
}

.stat-card {
  background: white;
  border-radius: var(--border-radius);
  padding: 1.25rem;
  box-shadow: var(--shadow);
  text-align: center;
  transition: transform 0.2s;
}

.stat-card:active {
  transform: scale(0.98);
}

.stat-icon {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.stat-value {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--dark-color);
  margin-bottom: 0.25rem;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--secondary-color);
}

/* 섹션 */
.section {
  margin-bottom: var(--spacing);
}

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

.section-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--dark-color);
}

.section-link {
  color: var(--primary-color);
  text-decoration: none;
  font-size: 0.9rem;
}

/* 카드 */
.card {
  background: white;
  border-radius: var(--border-radius);
  padding: 1rem;
  margin-bottom: 0.75rem;
  box-shadow: var(--shadow);
  transition: all 0.3s;
}

/* card:active transform 제거 - 모바일 터치 스크롤 방해 방지 */

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 0.75rem;
}

.card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--dark-color);
}

.card-badge {
  font-size: 0.75rem;
  padding: 0.25rem 0.75rem;
  border-radius: 12px;
  font-weight: 500;
}

.badge-success {
  background-color: #d4edda;
  color: #155724;
}

.badge-warning {
  background-color: #fff3cd;
  color: #856404;
}

.badge-danger {
  background-color: #f8d7da;
  color: #721c24;
}

.badge-info {
  background-color: #d1ecf1;
  color: #0c5460;
}

.card-info {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.info-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--secondary-color);
}

.info-icon {
  width: 20px;
  text-align: center;
}

/* 폼 */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--dark-color);
  font-size: 0.9rem;
}

.form-control {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #ddd;
  border-radius: 8px;
  font-size: 1rem;
  transition: border-color 0.3s;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(40, 167, 69, 0.1);
}

/* 버튼 */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 500;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s;
  width: 100%;
}

.btn:active {
  transform: scale(0.98);
}

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

.btn-primary:hover {
  background: #218838;
}

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

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

.btn-outline {
  background: transparent;
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
}

.btn-group {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
}

.btn-group .btn {
  flex: 1;
}

/* 하단 네비게이션 */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: white;
  border-top: 1px solid #e0e0e0;
  display: flex;
  justify-content: space-around;
  padding: 0.5rem 0 calc(0.5rem + env(safe-area-inset-bottom, 0px));
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
  z-index: 1000;
}

.nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-decoration: none;
  color: var(--secondary-color);
  padding: 0.5rem;
  transition: color 0.3s;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.nav-item.active {
  color: var(--primary-color);
}

.nav-icon {
  font-size: 1.5rem;
  margin-bottom: 0.25rem;
}

.nav-label {
  font-size: 0.7rem;
}

/* 알림 메시지 */
.alert {
  padding: 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.alert-success {
  background-color: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
}

.alert-error {
  background-color: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
}

.alert-warning {
  background-color: #fff3cd;
  color: #856404;
  border: 1px solid #ffeeba;
}

/* 빈 상태 */
.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--secondary-color);
}

.empty-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
  opacity: 0.5;
}

.empty-text {
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.empty-subtext {
  font-size: 0.85rem;
}

/* 로딩 */
.loading {
  text-align: center;
  padding: 2rem;
}

.spinner {
  border: 3px solid #f3f3f3;
  border-top: 3px solid var(--primary-color);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
  margin: 0 auto;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* 리스트 */
.list-group {
  list-style: none;
}

.list-item {
  background: white;
  border-radius: 8px;
  padding: 1rem;
  margin-bottom: 0.5rem;
  box-shadow: var(--shadow);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.list-item-content {
  flex: 1;
}

.list-item-title {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.list-item-subtitle {
  font-size: 0.85rem;
  color: var(--secondary-color);
}

/* 모달 */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  padding: var(--spacing);
}

.modal {
  background: white;
  border-radius: var(--border-radius);
  width: 100%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.modal-header {
  padding: 1.25rem;
  border-bottom: 1px solid #e0e0e0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-title {
  font-size: 1.25rem;
  font-weight: 600;
}

.modal-body {
  padding: 1.25rem;
}

.modal-footer {
  padding: 1.25rem;
  border-top: 1px solid #e0e0e0;
  display: flex;
  gap: 0.75rem;
}

/* 반응형 */
@media (min-width: 768px) {
  .container {
    max-width: 768px;
    margin: 0 auto;
  }

  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* 다크모드 지원 (선택사항) */
@media (prefers-color-scheme: dark) {
  body {
    background-color: #1a1a1a;
    color: #e0e0e0;
  }

  .card,
  .stat-card,
  .list-item {
    background: #2a2a2a;
    color: #e0e0e0;
  }

  .form-control {
    background: #2a2a2a;
    border-color: #444;
    color: #e0e0e0;
  }

  .bottom-nav {
    background: #2a2a2a;
    border-top-color: #444;
  }
}