:root {
    --primary: #26A69A;
    --primary-dark: #00897B;
    --primary-light: #80CBC4;
    --secondary: #FF7043;
    --secondary-dark: #E64A19;
    --success: #66BB6A;
    --danger: #EF5350;
    --warning: #FFA726;
    --bg-primary: #F5FBFA;
    --bg-secondary: #FFFFFF;
    --text-primary: #2D3436;
    --text-secondary: #636E72;
    --text-light: #B2BEC3;
    --border: #E0E6E6;
    --shadow: rgba(38, 166, 154, 0.1);
    --shadow-strong: rgba(0, 0, 0, 0.1);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --transition: all 0.3s ease;
}

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

html {
    font-size: 16px;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.app-header {
    background: var(--bg-secondary);
    box-shadow: 0 2px 8px var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    max-width: 800px;
    margin: 0 auto;
}

.app-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
}

.header-actions {
    display: flex;
    gap: 8px;
}

.btn-icon {
    width: 40px;
    height: 40px;
    border: none;
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-secondary);
}

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

.btn-icon svg {
    width: 20px;
    height: 20px;
}

.app-main {
    flex: 1;
    padding: 20px;
    max-width: 800px;
    margin: 0 auto;
    width: 100%;
}

.auth-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 120px);
    padding: 20px;
}

.auth-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 20px var(--shadow-strong);
    padding: 32px 24px;
    width: 100%;
    max-width: 380px;
}

.auth-header {
    text-align: center;
    margin-bottom: 24px;
}

.logo {
    width: 72px;
    height: 72px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    color: white;
}

.auth-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.auth-subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.auth-tabs {
    display: flex;
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    padding: 4px;
    margin-bottom: 24px;
}

.auth-tab {
    flex: 1;
    padding: 10px 16px;
    border: none;
    background: transparent;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.auth-tab.active {
    background: var(--bg-secondary);
    color: var(--primary);
    box-shadow: 0 2px 8px var(--shadow-strong);
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input,
.form-group select {
    padding: 12px 14px;
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: var(--transition);
    background: var(--bg-primary);
    color: var(--text-primary);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--shadow);
}

.form-group.checkbox-group {
    flex-direction: row;
    align-items: center;
}

.form-group.checkbox-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.form-group.checkbox-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border: none;
    padding: 14px 24px;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-secondary {
    background: var(--bg-primary);
    color: var(--text-secondary);
    border: 2px solid var(--border);
    padding: 12px 20px;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.btn-block {
    width: 100%;
}

.btn-small {
    padding: 8px 16px;
    font-size: 0.85rem;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    background: var(--bg-primary);
    color: var(--primary);
    font-weight: 500;
}

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

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

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

.auth-error {
    background: #FFEBEE;
    color: var(--danger);
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    margin-top: 16px;
    text-align: center;
}

.children-grid {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.child-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 20px;
    box-shadow: 0 2px 12px var(--shadow);
    cursor: pointer;
    transition: var(--transition);
    border-left: 4px solid var(--primary);
}

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

.child-card:hover {
    box-shadow: 0 4px 20px var(--shadow-strong);
}

.child-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.child-name {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.child-score {
    font-size: 1.5rem;
    font-weight: 700;
    padding: 8px 16px;
    border-radius: var(--radius-md);
}

.child-score.score-positive {
    background: #E8F5E9;
    color: var(--success);
}

.child-score.score-negative {
    background: #FFEBEE;
    color: var(--danger);
}

.child-score.score-zero {
    background: var(--bg-primary);
    color: var(--text-secondary);
}

.child-actions {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--text-light);
}

.item-count {
    color: var(--text-secondary);
}

.view-hint {
    color: var(--primary);
}

.empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--text-secondary);
}

.empty-state svg {
    color: var(--primary-light);
    margin-bottom: 16px;
}

.empty-state .hint {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-top: 8px;
}

.items-panel {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-primary);
    z-index: 200;
    overflow-y: auto;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateY(100%);
    }
    to {
        transform: translateY(0);
    }
}

.items-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: var(--bg-secondary);
    box-shadow: 0 2px 8px var(--shadow);
    position: sticky;
    top: 0;
    z-index: 10;
}

.items-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.btn-back {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 8px 12px;
    background: var(--bg-primary);
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
}

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

.items-list {
    padding: 16px 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.item-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    padding: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 8px var(--shadow);
}

.item-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.item-name {
    font-weight: 500;
    color: var(--text-primary);
}

.item-date {
    font-size: 0.8rem;
    color: var(--text-light);
}

.item-score {
    font-size: 1.25rem;
    font-weight: 700;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
}

.item-score.score-plus {
    background: #E8F5E9;
    color: var(--success);
}

.item-score.score-minus {
    background: #FFEBEE;
    color: var(--danger);
}

.empty-items {
    text-align: center;
    padding: 32px;
    color: var(--text-light);
}

.manage-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.manage-tabs {
    display: flex;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    padding: 4px;
    box-shadow: 0 2px 8px var(--shadow);
}

.manage-tab {
    flex: 1;
    padding: 12px 16px;
    border: none;
    background: transparent;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.manage-tab.active {
    background: var(--primary);
    color: white;
}

.manage-content {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 20px;
    box-shadow: 0 2px 12px var(--shadow);
}

.manage-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.manage-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.manage-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.manage-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px;
    background: var(--bg-primary);
    border-radius: var(--radius-md);
}

.manage-item-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.manage-item-name {
    font-weight: 500;
    color: var(--text-primary);
}

.manage-item-score {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.manage-item-score.score-plus {
    color: var(--success);
}

.manage-item-score.score-minus {
    color: var(--danger);
}

.manage-item-role {
    font-size: 0.8rem;
    color: var(--primary);
    background: #E0F2F1;
    padding: 2px 8px;
    border-radius: 4px;
}

.manage-item-actions {
    display: flex;
    gap: 8px;
}

.empty-manage {
    text-align: center;
    padding: 32px;
    color: var(--text-light);
}

.btn-back-home {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 24px;
    background: var(--bg-secondary);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
}

.btn-back-home:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    z-index: 300;
}

.modal {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalSlideUp 0.3s ease;
}

@keyframes modalSlideUp {
    from {
        transform: translateY(100%);
    }
    to {
        transform: translateY(0);
    }
}

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

.modal-header h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
}

.btn-close {
    width: 32px;
    height: 32px;
    border: none;
    background: var(--bg-primary);
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    transition: var(--transition);
}

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

.modal-body {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.modal-actions {
    display: flex;
    gap: 12px;
    margin-top: 8px;
}

.modal-actions .btn-secondary {
    flex: 1;
}

.modal-actions .btn-primary {
    flex: 1;
}

.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 500;
    z-index: 400;
    animation: toastIn 0.3s ease;
}

@keyframes toastIn {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

.toast.success {
    background: var(--success);
    color: white;
}

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

.fade-enter-active,
.fade-leave-active {
    transition: opacity 0.3s ease;
}

.fade-enter-from,
.fade-leave-to {
    opacity: 0;
}

.slide-up-enter-active,
.slide-up-leave-active {
    transition: all 0.3s ease;
}

.slide-up-enter-from,
.slide-up-leave-to {
    transform: translateY(100%);
}

.additem-container {
    padding: 16px;
}

.additem-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
}

.additem-header h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
}

.additem-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.template-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.template-card {
    background: var(--bg-primary);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    padding: 16px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.template-card:hover {
    border-color: var(--primary-light);
}

.template-card.active {
    border-color: var(--primary);
    background: #E0F2F1;
}

.template-name {
    font-weight: 500;
    color: var(--text-primary);
}

.template-score {
    font-weight: 700;
    font-size: 1.1rem;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
}

.template-score.score-plus {
    background: #E8F5E9;
    color: var(--success);
}

.template-score.score-minus {
    background: #FFEBEE;
    color: var(--danger);
}

.empty-templates {
    grid-column: 1 / -1;
    text-align: center;
    padding: 24px;
    color: var(--text-light);
    font-size: 0.9rem;
}

.additem-hint {
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-light);
    margin-top: 8px;
}

.score-plus {
    color: var(--success);
}

.score-minus {
    color: var(--danger);
}

@media (min-width: 600px) {
    .children-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .modal-overlay {
        align-items: center;
    }

    .modal {
        border-radius: var(--radius-lg);
        max-width: 420px;
    }
}

@media (min-width: 768px) {
    .header-content,
    .app-main {
        padding: 24px 32px;
    }

    .auth-card {
        padding: 40px 32px;
    }

    .manage-content {
        padding: 24px;
    }

    .item-card {
        padding: 20px;
    }
}

@media (min-width: 900px) {
    .children-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}