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

:root {
    /* Cores principais */
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --secondary: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    
    /* Tema escuro (sempre ativo) */
    --bg-light: #1a1a1a;
    --bg-white: #2a2a2a;
    --border: #3a3a3a;
    --text-dark: #e5e5e5;
    --text-gray: #a0a0a0;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.4);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-light);
    color: var(--text-dark);
    line-height: 1.6;
}

/* Loading Spinner */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(59, 130, 246, 0.2);
    border-radius: 50%;
    border-top-color: var(--primary);
    animation: spin 1s ease-in-out infinite;
}

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

/* Skeleton Loader */
.skeleton {
    background: linear-gradient(90deg, 
        var(--border) 25%, 
        rgba(226, 232, 240, 0.5) 50%, 
        var(--border) 75%
    );
    background-size: 200% 100%;
    animation: loading 1.5s ease-in-out infinite;
    border-radius: 8px;
}

@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.header {
    background: var(--bg-white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1.5rem 0;
}

.header .container {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    gap: 3rem;
}

.logo h1 a {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-decoration: none;
}

.nav ul {
    display: flex;
    list-style: none;
    gap: 1rem;
}

.nav a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    padding: 0.625rem 1.25rem;
    border-radius: 8px;
    transition: all 0.3s;
}

.nav a:hover {
    background: var(--bg-light);
}

/* Animações de transição */
* {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

/* Exceções para elementos que não devem ter transição */
input, textarea, button, select {
    transition: all 0.3s;
}

.nav a[style*="color:#667eea"],
.nav a[style*="color:#3b82f6"] {
    background: var(--primary);
    color: white !important;
}

.main-section {
    padding: 3rem 2rem;
    min-height: calc(100vh - 300px);
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    text-align: center;
    color: var(--text-dark);
    font-weight: 700;
}

.search-filter {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.search-input {
    flex: 1;
    min-width: 300px;
    padding: 0.875rem 1.25rem;
    border: 2px solid var(--border);
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s;
    background: #222;
    color: var(--text);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.filter-select {
    padding: 0.875rem 1.25rem;
    border: 2px solid var(--border);
    border-radius: 12px;
    font-size: 1rem;
    background: white;
    cursor: pointer;
    transition: all 0.3s;
}

.filter-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.btn-primary {
    padding: 0.875rem 2rem;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.table-wrapper {
    background: var(--bg-white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table thead {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
}

.data-table th {
    padding: 1.25rem 1rem;
    text-align: left;
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.data-table td {
    padding: 1.25rem 1rem;
    border-bottom: 1px solid var(--border);
}

.data-table tbody tr:hover {
    background: var(--bg-light);
}

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

.badge {
    padding: 0.375rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    display: inline-block;
}

.badge-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--secondary);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
}

.badge-danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

.btn-action {
    background: none;
    color: var(--primary);
    border: 1px solid var(--border);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    margin-right: 0.5rem;
    transition: all 0.3s;
    font-size: 1rem;
}

.btn-action:hover {
    background: var(--bg-light);
    border-color: var(--primary);
}

.btn-action.btn-danger {
    color: var(--danger);
    border-color: rgba(239, 68, 68, 0.3);
}

.btn-action.btn-danger:hover {
    background: rgba(239, 68, 68, 0.1);
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1rem;
}

/* Filtro de marcas - botões horizontais */
.marcas-filtro {
    display: flex;
    gap: 8px;
    margin: 12px 0 18px 0;
    padding: 6px 0;
    flex-wrap: wrap;
}

.marca-btn {
    background: rgba(102, 126, 234, 0.08);
    border: 1px solid rgba(102, 126, 234, 0.25);
    color: #8ea0ff;
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    cursor: pointer;
    transition: all 0.2s ease;
    border-radius: 999px;
    backdrop-filter: blur(2px);
}

[data-theme="dark"] .marca-btn {
    color: #a0a0a0;
}

.marca-btn:hover {
    background: rgba(102, 126, 234, 0.18);
    border-color: #667eea;
    color: #aab7ff;
}

.marca-btn.active {
    background: #667eea;
    color: #ffffff;
    border-color: #667eea;
}

[data-theme="dark"] .marca-btn.active {
    background: transparent;
    border: 2px solid #666;
    color: #d5d5d5;
}

.phone-card {
    background: var(--bg-white);
    border-radius: 8px;
    padding: 0.5rem 0.75rem;
    box-shadow: var(--shadow);
    /* Transição mais suave e controlada */
    transition: box-shadow 0.15s ease;
    border: 1px solid var(--border);
    position: relative;
    /* Evitar repaint/reflow */
    will-change: box-shadow;
    transform: translateZ(0);
    /* Garantir que o card não bloqueie cliques nos botões */
    pointer-events: auto;
}

/* Hover do card - apenas sombra, sem transform */
.phone-card:hover:not(.no-hover) {
    box-shadow: var(--shadow-lg);
}

/* Desabilitar hover quando mouse está sobre os botões */
.phone-card.no-hover,
.phone-card.no-hover:hover {
    transform: none !important;
    box-shadow: var(--shadow) !important;
    transition: none !important;
}

/* Prevenir hover do card quando mouse está sobre os botões */
.phone-card .phone-actions {
    pointer-events: auto;
    position: relative;
    z-index: 100;
    /* Isolar do hover do card */
    isolation: isolate;
}

.phone-card .phone-actions * {
    pointer-events: auto;
    position: relative;
    z-index: 101;
    /* Evitar repaint */
    transform: translateZ(0);
}

.phone-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.4rem;
    padding-bottom: 0.3rem;
    border-bottom: 1px dashed var(--border);
    /* Garantir que o header não bloqueie cliques */
    pointer-events: auto;
    position: relative;
    z-index: 1;
}

.btn-icon {
    /* SEM transições para evitar tremor e piscar */
    transition: none !important;
    user-select: none;
    -webkit-user-select: none;
    pointer-events: auto !important;
    position: relative !important;
    z-index: 9999 !important;
    transform: none !important;
    will-change: auto !important;
    /* Garantir que os botões sejam clicáveis */
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.btn-icon.btn-edit {
    border: none;
    background: transparent;
    color: var(--text-dark);
    border-radius: 6px;
    padding: 6px 10px;
    cursor: pointer;
    font-size: 1.2rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 32px;
    min-height: 32px;
    /* Sem transições */
    transition: none !important;
}

.btn-icon.btn-edit:hover {
    background: rgba(59, 130, 246, 0.15) !important;
    transform: none !important;
}

.btn-icon.btn-edit:active {
    background: rgba(59, 130, 246, 0.25) !important;
    transform: none !important;
}

.btn-icon.btn-delete {
    border: 1px solid rgba(239, 68, 68, 0.35);
    background: rgba(239, 68, 68, 0.08);
    color: #ef4444;
    border-radius: 6px;
    padding: 6px 10px;
    cursor: pointer;
    font-size: 11px;
    margin-left: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 32px;
    min-height: 32px;
    /* Sem transições */
    transition: none !important;
}

.btn-icon.btn-delete:hover {
    background: rgba(239, 68, 68, 0.2) !important;
    border-color: rgba(239, 68, 68, 0.5) !important;
    transform: none !important;
}

.btn-icon.btn-delete:active {
    background: rgba(239, 68, 68, 0.3) !important;
    border-color: rgba(239, 68, 68, 0.7) !important;
    transform: none !important;
}

.phone-actions {
    position: relative;
    z-index: 10;
    pointer-events: auto;
}

.phone-header h3 {
    font-size: 0.95rem;
    color: var(--text-dark);
}

.phone-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.2rem 0.6rem;
}

.phone-info p {
    margin-bottom: 0.2rem;
    color: var(--text-gray);
    font-size: 0.85rem;
    line-height: 1.3;
}

.phone-info strong {
    color: var(--text-dark);
}

.phone-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.btn-card {
    flex: 1;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: white;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 500;
}

/* Badge da marca no header */
.brand-badge {
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 0.6px;
    padding: 4px 8px;
    border-radius: 999px;
    color: #3b82f6;
    background: rgba(59, 130, 246, 0.12);
    border: 1px solid rgba(59, 130, 246, 0.25);
}

.btn-card:hover {
    background: var(--bg-light);
    border-color: var(--primary);
}

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

.btn-card.btn-danger:hover {
    background: rgba(239, 68, 68, 0.1);
    border-color: var(--danger);
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-white);
    border-radius: 20px;
    padding: 2.5rem;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: modalSlide 0.3s ease;
    box-sizing: border-box;
    -webkit-overflow-scrolling: touch;
}

@keyframes modalSlide {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.modal-header h2 {
    font-size: 1.75rem;
    color: var(--text-dark);
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-gray);
    font-size: 2rem;
    cursor: pointer;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    transition: all 0.3s;
}

.modal-close:hover {
    background: var(--bg-light);
    color: var(--text-dark);
}

.modal-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    color: var(--text-dark);
    font-weight: 500;
    font-size: 0.875rem;
}

.form-group input,
.form-group select {
    padding: 0.875rem;
    border: 2px solid var(--border);
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.modal-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.btn-modal {
    flex: 1;
    padding: 0.875rem;
    border: none;
    border-radius: 10px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 1rem;
}

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

.btn-save:hover {
    background: var(--primary-dark);
}

.btn-cancel {
    background: var(--bg-light);
    color: var(--text-dark);
    border: 2px solid var(--border);
}

.btn-cancel:hover {
    background: var(--border);
}

.footer {
    background: var(--bg-white);
    padding: 2rem 2rem 1rem;
    margin-top: 3rem;
    border-top: 1px solid var(--border);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-column h3,
.footer-column h4 {
    margin-bottom: 1rem;
}

.footer-column p,
.footer-column li {
    color: var(--text-gray);
    margin-bottom: 0.5rem;
}

.footer-column ul {
    list-style: none;
}

.footer-column a {
    color: var(--text-gray);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-column a:hover {
    color: var(--primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    color: var(--text-gray);
}

@media (max-width: 768px) {
    .header .container {
        flex-wrap: wrap;
    }

    .nav {
        width: 100%;
        margin-top: 1rem;
    }

    .nav ul {
        flex-direction: column;
        gap: 0.5rem;
    }

    .search-filter {
        flex-direction: column;
    }

    .search-input {
        min-width: 100%;
    }

    .section-title {
        font-size: 2rem;
    }

    .table-wrapper {
        overflow-x: auto;
    }

    .cards-grid {
        grid-template-columns: 1fr;
    }

    .modal-content {
        padding: 2rem;
    }
}

@media (max-width: 480px) {
    .main-section {
        padding: 2rem 1rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .data-table th,
    .data-table td {
        padding: 0.75rem 0.5rem;
        font-size: 0.875rem;
    }

    .logo h1 a {
        font-size: 1.5rem;
    }
    
    /* Modal - Ultra compacto para mobile */
    .modal-content {
        padding: 1rem;
        max-height: 95vh;
        border-radius: 12px;
    }
    
    .modal-header {
        margin-bottom: 0.75rem;
    }
    
    .modal-header h2 {
        font-size: 1rem;
    }
    
    .modal-close {
        width: 24px;
        height: 24px;
        font-size: 1.25rem;
    }
    
    .modal-form {
        gap: 0.5rem;
    }
    
    .form-group {
        gap: 0.25rem;
    }
    
    .form-group label {
        font-size: 0.75rem;
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 0.5rem 0.65rem;
        font-size: 0.85rem;
    }
    
    .modal-actions {
        gap: 0.5rem;
        margin-top: 0.75rem;
    }
    
    .btn-modal {
        padding: 0.65rem;
        font-size: 0.85rem;
        min-height: 42px;
    }
    
    /* Botões de marca - Ultra compactos para mobile */
    .marcas-filtro {
        gap: 4px !important;
        margin: 8px 0 12px 0 !important;
        padding: 4px 0 !important;
    }
    
    .marca-btn {
        padding: 5px 10px !important;
        font-size: 0.7rem !important;
        letter-spacing: 0.3px !important;
        border-radius: 6px !important;
    }
}

/* Responsividade melhorada */
@media (max-width: 1024px) {
    .container {
        max-width: 100%;
        padding: 0 15px;
    }

    .header .container {
        gap: 1.5rem;
    }
}

@media (max-width: 640px) {
    .header {
        padding: 1rem 0;
    }

    .header .container {
        gap: 1rem;
        flex-wrap: wrap;
    }

    .logo img {
        height: 40px !important;
    }

    .nav {
        width: 100%;
        order: 2;
    }

    .nav ul {
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .nav a {
        padding: 0.5rem 0.75rem;
        font-size: 0.875rem;
        flex: 1 1 auto;
        text-align: center;
        min-width: calc(50% - 5px);
    }

    .btn-primary {
        padding: 0.75rem 1.5rem;
        font-size: 0.875rem;
        width: 100%;
    }

    .phone-card {
        padding: 1.5rem;
    }

    .modal-content {
        padding: 1.5rem;
        max-width: 95%;
    }

    /* Melhorias para mobile */
    .container {
        padding: 0 10px !important;
    }

    .main-section {
        padding: 1rem 0.5rem !important;
    }

    .data-table {
        font-size: 0.75rem !important;
    }

    .data-table th,
    .data-table td {
        padding: 0.5rem !important;
    }
}

@media (max-width: 480px) {
    /* Mobile Pequeno */
    .main-section {
        padding: 1rem 0.5rem !important;
    }

    .section-title {
        font-size: 1.5rem !important;
    }

    .data-table th,
    .data-table td {
        padding: 0.5rem 0.25rem !important;
        font-size: 0.7rem !important;
    }

    .logo h1 a {
        font-size: 1.25rem;
    }
    
    .marcas-filtro {
        gap: 8px;
        margin: 15px 0 20px 0;
    }
    
    .marca-btn {
        padding: 8px 16px;
        font-size: 12px;
    }

    .phone-card {
        padding: 1.5rem 1rem !important;
    }

    .phone-card h3 {
        font-size: 1.25rem !important;
    }

    .phone-card > div[style*="font-size: 4rem"] {
        font-size: 2.5rem !important;
    }

    /* Melhorias de UX no mobile */
    .search-input {
        font-size: 16px !important; /* Evita zoom no iOS */
    }

    input, textarea, select {
        font-size: 16px !important;
    }

    .btn-action {
        padding: 0.4rem 0.8rem !important;
        font-size: 0.75rem !important;
    }

    /* Cards mais compactos */
    .cards-grid {
        gap: 10px !important;
    }
}

/* Melhorias gerais para mobile */
@media (max-width: 768px) {
    * {
        -webkit-tap-highlight-color: transparent;
    }

    button, a, input[type="button"], input[type="submit"] {
        min-height: 44px; /* Tamanho mínimo para toque */
        min-width: 44px;
    }
}

/* Modal de Login */
.login-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 100000 !important;
    backdrop-filter: blur(5px);
    pointer-events: all !important;
}

.login-modal.active {
    display: flex;
}

.login-modal-content {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 40px;
    width: 100%;
    max-width: 420px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: slideUp 0.3s ease-out;
    position: relative;
    z-index: 100001 !important;
    pointer-events: all !important;
    box-sizing: border-box;
}

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

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-dark);
    margin: 10px 0 5px 0;
}

.login-header p {
    color: var(--text-gray);
    font-size: 0.9rem;
}

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

.login-modal-content .form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-dark);
    font-weight: 500;
    font-size: 0.9rem;
}

.login-modal-content .form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    background: var(--input-bg);
    color: var(--text-dark);
    transition: all 0.3s ease;
    box-sizing: border-box;
    position: relative;
    z-index: 100002 !important;
    pointer-events: all !important;
}

.login-modal-content .form-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.btn-login {
    width: 100%;
    padding: 14px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 10px;
    position: relative;
    z-index: 100002 !important;
    pointer-events: all !important;
}

.btn-login:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.btn-login:active {
    transform: translateY(0);
}

.login-error {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    padding: 12px;
    border-radius: 8px;
    font-size: 0.9rem;
    margin-bottom: 15px;
    text-align: center;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

/* Dark theme para modal de login */
[data-theme="dark"] .login-modal-content {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
}

[data-theme="dark"] .login-modal-content .form-group input {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--border-color);
}

[data-theme="dark"] .login-modal-content .form-group input:focus {
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.08);
}

/* ============================================
   CARDS DE GARANTIA - Versão Compacta (Todos os Tamanhos)
   ============================================ */
.table-wrapper {
    padding: 0;
}

.data-table thead {
    display: none; /* Esconder cabeçalho quando usar cards */
}

#garantiasTable {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.garantia-card-mobile {
    background: var(--bg-white);
    border-radius: 8px;
    border: 1px solid var(--border);
    overflow: hidden;
    box-shadow: var(--shadow);
    margin-bottom: 0;
}

.garantia-card-header {
    padding: 8px 12px;
    cursor: pointer;
    user-select: none;
    background: var(--bg-white);
    transition: background 0.2s;
}

.garantia-card-header:hover {
    background: var(--bg-light);
}

.garantia-card-header.expanded {
    border-bottom: 1px solid var(--border);
}

.garantia-card-main {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.garantia-card-numero {
    font-size: 0.85rem;
    color: var(--primary);
    font-weight: 700;
    flex-shrink: 0;
    min-width: 40px;
}

.garantia-card-info {
    flex: 1;
    min-width: 0;
}

.garantia-card-cliente {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.garantia-card-aparelho {
    font-size: 0.8rem;
    color: var(--text-gray);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.garantia-card-arrow {
    font-size: 0.75rem;
    color: var(--text-gray);
    flex-shrink: 0;
    transition: transform 0.3s;
}

.garantia-card-details {
    padding: 12px;
    background: var(--bg-light);
    border-top: 1px solid var(--border);
}

.garantia-detail-item {
    padding: 6px 0;
    font-size: 0.85rem;
    color: var(--text-gray);
    border-bottom: 1px solid var(--border);
}

.garantia-detail-item:last-of-type {
    border-bottom: none;
}

.garantia-detail-item strong {
    color: var(--text-dark);
    margin-right: 8px;
}

.garantia-card-actions {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--border);
}

.garantia-card-actions .btn-action {
    width: 100%;
    padding: 10px;
    text-align: left;
    justify-content: flex-start;
}

/* ============================================
   RESPONSIVIDADE - Adaptação para todos os dispositivos
   ============================================ */

/* Tablets e telas médias (até 1024px) */
@media (max-width: 1024px) {
    .login-modal-content {
        max-width: 90%;
        padding: 30px;
    }
    
    .container {
        padding: 20px;
    }
    
    .data-table {
        font-size: 0.9rem;
    }
    
    .phone-card {
        padding: 15px;
    }
}

/* Tablets pequenos e notebooks pequenos (até 768px) */
@media (max-width: 768px) {
    .login-modal-content {
        max-width: 95%;
        padding: 25px 20px;
        margin: 20px;
        max-height: 90vh;
        overflow-y: auto;
    }
    
    .login-header h2 {
        font-size: 1.5rem;
    }
    
    .login-header p {
        font-size: 0.85rem;
    }
    
    .login-header img {
        height: 50px !important;
    }
    
    .header {
        padding: 10px 0 !important;
    }
    
    .header .container {
        gap: 15px !important;
        flex-wrap: wrap;
    }
    
    .header .logo img {
        height: 38px !important;
    }
    
    .nav ul {
        flex-wrap: wrap;
        gap: 8px !important;
    }
    
    .nav ul li a,
    .nav ul li button {
        padding: 8px 14px;
        font-size: 0.9rem;
    }
    
    .container {
        padding: 15px;
    }
    
    .main-section {
        padding: 15px 0;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .data-table {
        font-size: 0.85rem;
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }
    
    .data-table thead,
    .data-table tbody,
    .data-table tr,
    .data-table td,
    .data-table th {
        display: block;
    }
    
    .data-table thead {
        display: none;
    }
    
    .data-table tr {
        border: 1px solid var(--border-color);
        border-radius: 8px;
        margin-bottom: 15px;
        padding: 15px;
        background: var(--card-bg);
    }
    
    .data-table td {
        border: none;
        padding: 8px 0;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }
    
    .data-table td:before {
        content: attr(data-label);
        font-weight: 600;
        margin-right: 10px;
    }
    
    .phone-card {
        width: 100%;
        margin-bottom: 15px;
    }
    
    .cards-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .search-filter {
        flex-direction: column;
        gap: 10px;
    }
    
    .search-input {
        width: 100%;
    }
    
    .btn-primary {
        width: 100%;
    }
}

/* Celulares (até 480px) */
@media (max-width: 480px) {
    /* Modal de Login */
    .login-modal {
        padding: 10px;
    }
    
    .login-modal-content {
        max-width: 100%;
        padding: 20px 15px;
        margin: 10px;
        max-height: 95vh;
        border-radius: 12px;
    }
    
    .login-header {
        margin-bottom: 20px;
    }
    
    .login-header img {
        height: 45px !important;
        margin-bottom: 8px;
    }
    
    .login-header h2 {
        font-size: 1.3rem;
        margin: 8px 0 4px 0;
    }
    
    .login-header p {
        font-size: 0.8rem;
    }
    
    .login-modal-content .form-group {
        margin-bottom: 15px;
    }
    
    .login-modal-content .form-group label {
        font-size: 0.85rem;
        margin-bottom: 6px;
    }
    
    .login-modal-content .form-group input {
        padding: 10px 14px;
        font-size: 0.95rem;
    }
    
    .btn-login {
        padding: 12px;
        font-size: 0.95rem;
        margin-top: 8px;
    }
    
    .login-error {
        padding: 10px;
        font-size: 0.85rem;
        margin-bottom: 12px;
    }
    
    /* Header - Compacto e Moderno para Mobile */
    .header {
        padding: 8px 0 !important;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    }
    
    .header .container {
        padding: 0 10px !important;
        gap: 10px !important;
        flex-wrap: wrap;
    }
    
    .header .logo {
        flex-shrink: 0;
    }
    
    .header .logo img {
        height: 35px !important;
    }
    
    .nav {
        flex: 1;
        min-width: 0;
    }
    
    .nav ul {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 6px !important;
        justify-content: flex-start;
        align-items: center;
    }
    
    .nav ul li {
        width: auto;
        flex-shrink: 0;
    }
    
    .nav ul li a {
        padding: 6px 12px;
        font-size: 0.85rem;
        border-radius: 6px;
        transition: all 0.2s;
        white-space: nowrap;
    }
    
    .nav ul li a:hover {
        background: var(--bg-light);
    }
    
    .nav ul li button {
        padding: 6px 12px;
        font-size: 0.85rem;
        border-radius: 6px;
        transition: all 0.2s;
        white-space: nowrap;
    }
    
    .nav ul li button:hover {
        background: var(--bg-light);
    }
    
    /* Compactar navegação para mobile - garantindo que Aparelhos e Sair fiquem juntos */
    .nav ul {
        gap: 4px !important;
    }
    
    .nav ul li a,
    .nav ul li button {
        padding: 5px 8px !important;
        font-size: 0.8rem !important;
    }
    
    /* Container e seções */
    .container {
        padding: 10px;
    }
    
    .main-section {
        padding: 10px 0;
    }
    
    .section-title {
        font-size: 1.3rem;
        margin-bottom: 15px;
    }
    
    /* Tabelas */
    .data-table {
        font-size: 0.8rem;
    }
    
    .data-table td {
        padding: 6px 0;
        font-size: 0.8rem;
    }
    
    .table-wrapper {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    /* Cards de telefone - Bem Finos */
    .phone-card {
        padding: 8px 10px;
        border-radius: 8px;
        margin-bottom: 10px;
    }
    
    .phone-header {
        margin-bottom: 6px;
        padding-bottom: 6px;
    }
    
    .phone-header h3 {
        font-size: 0.95rem;
        margin: 0;
    }
    
    .phone-info {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 4px 8px;
        font-size: 0.8rem;
    }
    
    .phone-info p {
        font-size: 0.75rem;
        margin-bottom: 3px;
        line-height: 1.3;
    }
    
    .brand-badge {
        font-size: 0.65rem;
        padding: 2px 6px;
    }
    
    .btn-icon {
        min-width: 32px;
        min-height: 32px;
        font-size: 0.85rem;
        padding: 4px;
    }
    
    /* Botões */
    .btn-primary,
    .btn-modal,
    .btn-action {
        padding: 10px 15px;
        font-size: 0.9rem;
        min-height: 44px;
    }
    
    .btn-icon {
        min-width: 40px;
        min-height: 40px;
        font-size: 1rem;
    }
    
    /* Modal principal - Compacto e Premium para Mobile */
    .modal-content {
        width: 95%;
        max-width: 100%;
        margin: 10px;
        max-height: 95vh;
        overflow-y: auto;
        border-radius: 16px;
        padding: 1.25rem;
    }
    
    .modal-header {
        margin-bottom: 1rem;
    }
    
    .modal-header h2 {
        font-size: 1.1rem;
        font-weight: 700;
    }
    
    .modal-close {
        width: 28px;
        height: 28px;
        font-size: 1.5rem;
    }
    
    .modal-form {
        gap: 0.75rem;
    }
    
    .form-group {
        gap: 0.35rem;
        margin-bottom: 0;
    }
    
    .form-group label {
        font-size: 0.8rem;
        font-weight: 600;
        margin-bottom: 0;
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 0.65rem 0.75rem;
        font-size: 0.9rem;
        border-radius: 8px;
    }
    
    .modal-actions {
        gap: 0.75rem;
        margin-top: 0.5rem;
    }
    
    .btn-modal {
        padding: 0.75rem;
        font-size: 0.9rem;
        border-radius: 8px;
        min-height: 44px;
    }
    
    /* Filtros de marca */
    .marcas-filtro {
        gap: 6px;
        margin: 10px 0 15px 0;
        flex-wrap: wrap;
    }
    
    .marca-btn {
        padding: 8px 14px;
        font-size: 0.85rem;
    }
    
    /* Footer */
    .footer {
        padding: 20px 0;
        font-size: 0.85rem;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 20px;
    }
    
    /* Search */
    .search-input {
        padding: 10px 12px;
        font-size: 0.9rem;
    }
    
    /* Badges */
    .badge {
        padding: 4px 8px;
        font-size: 0.75rem;
    }
}

/* Celulares muito pequenos (até 360px) */
@media (max-width: 360px) {
    .login-modal-content {
        padding: 15px 12px;
    }
    
    .login-header h2 {
        font-size: 1.2rem;
    }
    
    .section-title {
        font-size: 1.2rem;
    }
    
    .data-table td {
        font-size: 0.75rem;
        flex-direction: column;
        align-items: flex-start;
    }
    
    .data-table td:before {
        margin-bottom: 4px;
    }
    
    /* Header ainda mais compacto */
    .header {
        padding: 6px 0 !important;
    }
    
    .header .container {
        padding: 0 8px !important;
        gap: 8px !important;
    }
    
    .header .logo img {
        height: 30px !important;
    }
    
    .nav ul {
        gap: 4px !important;
    }
    
    .nav ul li a,
    .nav ul li button {
        padding: 5px 10px;
        font-size: 0.8rem;
    }
    
    /* Botões de marca ainda mais compactos para telas pequenas */
    .marcas-filtro {
        gap: 3px !important;
        margin: 6px 0 10px 0 !important;
    }
    
    .marca-btn {
        padding: 4px 8px !important;
        font-size: 0.65rem !important;
    }
}

/* Melhorias para touch em mobile */
@media (hover: none) and (pointer: coarse) {
    /* Dispositivos touch */
    .btn-primary,
    .btn-modal,
    .btn-action,
    .btn-login {
        min-height: 48px;
        min-width: 48px;
    }
    
    .login-modal-content {
        -webkit-overflow-scrolling: touch;
        scroll-behavior: smooth;
    }
    
    .modal-content {
        -webkit-overflow-scrolling: touch;
        scroll-behavior: smooth;
    }
    
    .table-wrapper {
        -webkit-overflow-scrolling: touch;
    }
    
    input,
    select,
    textarea {
        font-size: 16px !important; /* Previne zoom no iOS */
    }
}

/* Melhorias para telas grandes (acima de 1440px) */
@media (min-width: 1440px) {
    .container {
        max-width: 1400px;
    }
    
    .login-modal-content {
        max-width: 480px;
        padding: 45px;
    }
}

/* Melhorias para telas médias (notebooks) */
@media (min-width: 769px) and (max-width: 1366px) {
    .login-modal-content {
        max-width: 400px;
        padding: 35px;
    }
    
    .modal-content {
        max-width: 600px;
    }
}