@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

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

:root {
    --bg-primary: #0F172A;
    --bg-card: #1E293B;
    --bg-input: #0F172A;
    --border: #334155;
    --border-hover: #475569;
    --text-primary: #F8FAFC;
    --text-secondary: #CBD5E1;
    --text-muted: #94A3B8;
    --accent-green: #10B981;
    --accent-blue: #3B82F6;
    --accent-red: #EF4444;
    --accent-purple: #6366F1;
    --accent-yellow: #F59E0B;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.25);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
}

.admin-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 24px;
}

/* ============================================
   HEADER
============================================ */
.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
    flex-wrap: wrap;
    gap: 16px;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.btn-back {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: var(--bg-card);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all 0.3s;
    border: 1px solid var(--border);
}

.btn-back:hover {
    background: var(--border-hover);
    color: var(--text-primary);
    transform: translateX(-2px);
}

.admin-header h1 {
    font-size: clamp(20px, 4vw, 26px);
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 12px;
}

.admin-header h1 i {
    color: var(--accent-purple);
}

.header-actions {
    display: flex;
    gap: 12px;
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-secondary);
    border: 1px solid var(--border);
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s;
    font-size: 14px;
    font-family: inherit;
}

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

.btn-logout {
    background: var(--accent-red);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s;
    font-size: 14px;
}

.btn-logout:hover {
    background: #DC2626;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.4);
}

/* ============================================
   INFO BOX
============================================ */
.info-box {
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: 8px;
    padding: 14px 18px;
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
    color: var(--text-secondary);
    font-size: 14px;
}

.info-box i {
    color: var(--accent-blue);
    font-size: 18px;
    flex-shrink: 0;
}

/* ============================================
   MODO VIEW
============================================ */
.modo-view {
    animation: fadeIn 0.3s;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* ============================================
   BOTÃO VOLTAR PEQUENO
============================================ */
.btn-back-small {
    background: var(--bg-card);
    color: var(--text-secondary);
    border: 1px solid var(--border);
    padding: 10px 16px;
    border-radius: 8px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s;
    font-size: 14px;
    font-family: inherit;
}

.btn-back-small:hover {
    background: var(--border-hover);
    color: var(--text-primary);
}

/* ============================================
   CONTENT
============================================ */
.categoria-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 16px;
}

.categoria-header h2 {
    font-size: 22px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-green) 0%, #059669 100%);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s;
    font-size: 14px;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
    font-family: inherit;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
}

/* ============================================
   LISTA DE CATEGORIAS
============================================ */
.categorias-lista {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
}

.categoria-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s;
    position: relative;
}

.categoria-card:hover {
    border-color: var(--accent-purple);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.categoria-card.inativo {
    opacity: 0.6;
}

.categoria-imagem {
    width: 100%;
    height: 180px;
    object-fit: cover;
    background: var(--bg-input);
}

.categoria-imagem img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.categoria-body {
    padding: 16px;
}

.categoria-nome {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.categoria-tag {
    display: inline-block;
    background: rgba(99, 102, 241, 0.1);
    color: var(--accent-purple);
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 8px;
    text-transform: lowercase;
}

.categoria-descricao {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 12px;
    line-height: 1.5;
}

.categoria-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 12px;
    border-top: 1px solid var(--border);
    font-size: 12px;
    color: var(--text-muted);
}

.categoria-status {
    display: flex;
    align-items: center;
    gap: 6px;
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-green);
}

.status-indicator.inativo {
    background: var(--text-muted);
}

.categoria-actions {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin-top: 12px;
}

.btn-action-small {
    padding: 8px;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    font-size: 12px;
    font-weight: 600;
    transition: all 0.3s;
    color: white;
    font-family: inherit;
}

.btn-ver-itens {
    background: linear-gradient(135deg, var(--accent-purple) 0%, #4F46E5 100%);
}

.btn-ver-itens:hover {
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

/* ============================================
   LISTA DE ITENS
============================================ */
.itens-lista {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 16px;
}

.item-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.item-card:hover {
    border-color: var(--accent-green);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.item-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--accent-green) 0%, var(--accent-blue) 100%);
}

.item-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
    gap: 12px;
}

.item-nome {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
}

.item-descricao {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.item-valor {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, rgba(16, 185, 129, 0.05) 100%);
    border: 1px solid rgba(16, 185, 129, 0.2);
    border-radius: 8px;
    padding: 12px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.item-valor-label {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}

.item-valor-valor {
    font-size: 22px;
    font-weight: 700;
    color: var(--accent-green);
}

.item-actions {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
}

.btn-action {
    padding: 10px 14px;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 600;
    transition: all 0.3s;
    color: white;
    font-family: inherit;
}

.btn-edit {
    background: linear-gradient(135deg, var(--accent-blue) 0%, #2563EB 100%);
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}

.btn-edit:hover {
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
    transform: translateY(-2px);
}

.btn-delete {
    background: linear-gradient(135deg, var(--accent-red) 0%, #DC2626 100%);
    box-shadow: 0 2px 8px rgba(239, 68, 68, 0.3);
}

.btn-delete:hover {
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.4);
    transform: translateY(-2px);
}

/* ============================================
   MODAL
============================================ */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal.ativo {
    display: flex;
    animation: fadeIn 0.3s;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.modal-content {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    z-index: 1001;
    animation: slideUp 0.3s;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.modal-header h3 {
    font-size: 20px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.modal-header h3 i {
    color: var(--accent-green);
}

.btn-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 20px;
    cursor: pointer;
    width: 36px;
    height: 36px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.btn-close:hover {
    background: var(--border-hover);
    color: var(--text-primary);
    transform: rotate(90deg);
}

.modal-body {
    padding: 24px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
}

.form-group small {
    display: block;
    margin-top: 4px;
    font-size: 12px;
    color: var(--text-muted);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    transition: all 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-green);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

/* ============================================
   UPLOAD DE IMAGEM
============================================ */
.upload-imagem {
    border: 2px dashed var(--border);
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    transition: all 0.3s;
    cursor: pointer;
}

.upload-imagem:hover {
    border-color: var(--accent-green);
    background: rgba(16, 185, 129, 0.05);
}

.upload-placeholder {
    color: var(--text-muted);
}

.upload-placeholder i {
    font-size: 48px;
    margin-bottom: 12px;
    color: var(--accent-green);
    display: block;
}

.upload-placeholder p {
    font-size: 14px;
    margin-bottom: 4px;
    color: var(--text-secondary);
}

.upload-placeholder small {
    font-size: 12px;
    color: var(--text-muted);
}

.imagem-preview {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
}

.imagem-preview img {
    width: 100%;
    max-height: 200px;
    object-fit: cover;
    border-radius: 8px;
}

.btn-remover-imagem {
    position: absolute;
    top: 8px;
    right: 8px;
    background: var(--accent-red);
    color: white;
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.btn-remover-imagem:hover {
    background: #DC2626;
    transform: scale(1.1);
}

/* ============================================
   CHECKBOX CUSTOMIZADO
============================================ */
.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-size: 14px;
    color: var(--text-secondary);
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--accent-green);
}

/* ============================================
   LOADING
============================================ */
.loading {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.loading i {
    font-size: 48px;
    margin-bottom: 16px;
    display: block;
    color: var(--accent-green);
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.empty-state i {
    font-size: 64px;
    margin-bottom: 16px;
    display: block;
    color: var(--border-hover);
}

.empty-state p {
    font-size: 16px;
    margin-bottom: 8px;
}

/* ============================================
   RESPONSIVO
============================================ */
@media (max-width: 768px) {
    body {
        padding: 16px;
    }
    
    .admin-header {
        flex-direction: column;
        align-items: stretch;
    }
    
    .header-left {
        justify-content: space-between;
    }
    
    .header-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .header-actions .btn-secondary,
    .header-actions .btn-logout {
        width: 100%;
        justify-content: center;
    }
    
    .categorias-lista {
        grid-template-columns: 1fr;
    }
    
    .categoria-actions {
        grid-template-columns: 1fr;
    }
    
    .categoria-header {
        flex-direction: column;
        align-items: stretch;
    }
    
    .btn-primary {
        width: 100%;
        justify-content: center;
    }
    
    .itens-lista {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .item-actions {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .modal-content {
        max-height: 100vh;
        border-radius: 0;
    }
    
    .modal-body {
        padding: 16px;
    }
    
    .modal-footer {
        flex-direction: column;
    }
    
    .modal-footer .btn {
        width: 100%;
        justify-content: center;
    }
    
    .item-card {
        padding: 16px;
    }
    
    .item-valor-valor {
        font-size: 20px;
    }
}

/* ============================================
   PREVIEW DE IMAGEM POR URL
============================================ */
.preview-imagem-url {
    animation: fadeIn 0.3s;
}

.preview-container {
    position: relative;
    border: 2px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    max-width: 100%;
}

.preview-container img {
    width: 100%;
    max-height: 300px;
    object-fit: cover;
    display: block;
}

.btn-remover-preview {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(239, 68, 68, 0.95);
    color: white;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.btn-remover-preview:hover {
    background: #DC2626;
    transform: scale(1.1) rotate(90deg);
}

.preview-info {
    margin-top: 10px;
    padding: 10px;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: 6px;
    color: var(--accent-green);
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.preview-info i {
    font-size: 16px;
}

.erro-imagem {
    animation: shake 0.5s;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}