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

:root {
    --primary-color: #FF9500;
    --primary-dark: #E68A00;
    --secondary-color: #F5F5F5;
    --text-color: #333;
    --border-color: #DDD;
    --success-color: #4CAF50;
    --error-color: #f44336;
    --warning-color: #FFC107;
}

html, body {
    width: 100%;
    height: 100%;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: #FAFAFA;
    color: var(--text-color);
}

/* ===== Login Page ===== */
.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    padding: 20px;
}

.login-card {
    background: white;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.2);
    width: 100%;
    max-width: 400px;
    padding: 40px;
    animation: slideUp 0.5s;
}

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

.login-header h1 {
    font-size: 48px;
    margin: 0;
}

.login-header h2 {
    font-size: 24px;
    color: var(--primary-color);
    margin: 10px 0 0 0;
}

.login-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    border-bottom: 2px solid #EEE;
}

.login-tab-btn {
    flex: 1;
    padding: 12px;
    border: none;
    background: none;
    color: #999;
    font-weight: 600;
    cursor: pointer;
    position: relative;
    transition: color 0.3s;
}

.login-tab-btn.active {
    color: var(--primary-color);
}

.login-tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--primary-color);
}

.login-form {
    display: none;
}

.login-form.active {
    display: block;
    animation: fadeIn 0.3s;
}

.login-footer {
    text-align: center;
}

body {
    padding-bottom: 60px;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    padding: 0 12px;
}

/* ===== Header ===== */
.header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    padding: 20px 0;
    margin: 0 -12px 20px -12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 12px;
}

.header h1 {
    font-size: 28px;
    margin-bottom: 5px;
    text-align: center;
}

.header .subtitle {
    font-size: 14px;
    opacity: 0.95;
    text-align: center;
}

.header-buttons {
    display: flex;
    gap: 8px;
    align-items: center;
}

.btn-tema {
    background: rgba(255,255,255,0.2);
    border: none;
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 20px;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-tema:active {
    background: rgba(255,255,255,0.3);
}

.btn-logout {
    background: rgba(255,255,255,0.2);
    border: none;
    color: white;
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

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

/* ===== Estatísticas ===== */
.estatisticas {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 20px;
}

.stat-card {
    background: white;
    padding: 16px;
    border-radius: 12px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    display: flex;
    align-items: center;
    gap: 12px;
}

.stat-icon {
    font-size: 28px;
}

.stat-numero {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
}

.stat-label {
    font-size: 12px;
    color: #999;
    margin-top: 4px;
}

/* ===== Formulário ===== */
.adicionar-encomenda {
    background: white;
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 20px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.adicionar-encomenda h2 {
    font-size: 18px;
    margin-bottom: 15px;
    color: var(--text-color);
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    font-size: 14px;
    margin-bottom: 8px;
    color: #555;
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 149, 0, 0.1);
}

/* ===== Botões ===== */
.btn {
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    text-decoration: none;
    display: inline-block;
}

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

.btn-primary:active {
    background-color: var(--primary-dark);
    transform: scale(0.98);
}

.btn-block {
    width: 100%;
    display: block;
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

.btn-secondary:active {
    background-color: #E8E8E8;
}

.btn-danger {
    background-color: var(--error-color);
    color: white;
    font-size: 14px;
    padding: 10px 15px;
}

.btn-danger:active {
    background-color: #da190b;
}

/* ===== Mensagens ===== */
.mensagem {
    margin-top: 15px;
    padding: 12px;
    border-radius: 8px;
    display: none;
    text-align: center;
    font-size: 14px;
}

.mensagem.sucesso {
    background-color: #E8F5E9;
    color: var(--success-color);
    border: 1px solid var(--success-color);
    display: block;
}

.mensagem.erro {
    background-color: #FFEBEE;
    color: var(--error-color);
    border: 1px solid var(--error-color);
    display: block;
}

/* ===== Abas ===== */
.tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
}

.tab-btn {
    flex: 1;
    padding: 12px;
    border: none;
    background: none;
    color: #999;
    font-weight: 600;
    cursor: pointer;
    position: relative;
    transition: color 0.3s;
}

.tab-btn.active {
    color: var(--primary-color);
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--primary-color);
}

/* ===== Botão de Sincronização ===== */
.btn-sincronizar {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
    margin-left: auto;
    box-shadow: 0 2px 6px rgba(255, 149, 0, 0.3);
}

.btn-sincronizar:active {
    transform: scale(0.95);
}

.btn-sincronizar.sincronizando {
    animation: spin 1s linear infinite;
}

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

/* ===== Lista de Encomendas ===== */
.lista-encomendas {
    display: grid;
    gap: 12px;
    margin-bottom: 20px;
}

.encomenda-card-wrapper {
    display: flex;
    gap: 8px;
    align-items: stretch;
}

.encomenda-card {
    background: white;
    padding: 16px;
    border-radius: 12px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    cursor: pointer;
    transition: all 0.3s;
    border-left: 4px solid var(--primary-color);
    flex: 1;
}

.encomenda-card:active {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.btn-deletar {
    background: var(--error-color);
    color: white;
    border: none;
    border-radius: 12px;
    padding: 0 12px;
    cursor: pointer;
    font-size: 18px;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    min-width: 50px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.btn-deletar:active {
    transform: scale(0.95);
    box-shadow: 0 2px 6px rgba(244,67,54,0.3);
}

.btn-deletar:hover {
    background: #da190b;
}

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

.encomenda-titulo {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-color);
    flex: 1;
}

.status-badge {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
}

.status-badge.em-transito {
    background-color: #E3F2FD;
    color: #1976D2;
}

.status-badge.entregue {
    background-color: #E8F5E9;
    color: var(--success-color);
}

.status-badge.devolvido {
    background-color: #FCE4EC;
    color: #C2185B;
}

.status-badge.desconhecido {
    background-color: #F5F5F5;
    color: #999;
}

.encomenda-codigo {
    font-size: 13px;
    color: #666;
    font-family: 'Courier New', monospace;
    margin-bottom: 8px;
}

.encomenda-info {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    color: #999;
}

.vazio {
    text-align: center;
    padding: 40px 20px;
    color: #999;
    font-size: 14px;
}

/* ===== Modal ===== */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    animation: fadeIn 0.3s;
}

.modal.active {
    display: flex;
    align-items: flex-end;
}

.modal-content {
    background-color: white;
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    border-radius: 12px 12px 0 0;
    animation: slideUp 0.3s;
}

.close {
    float: right;
    font-size: 28px;
    font-weight: bold;
    padding: 16px 20px;
    cursor: pointer;
    color: #999;
}

.close:hover {
    color: var(--text-color);
}

.modal-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
}

.modal-body {
    padding: 20px;
}

.rastreamento-item {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.rastreamento-item:last-child {
    border-bottom: none;
}

.rastreamento-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--secondary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.rastreamento-info h4 {
    font-size: 15px;
    margin-bottom: 4px;
    color: var(--text-color);
}

.rastreamento-info p {
    font-size: 13px;
    color: #666;
    margin-bottom: 4px;
}

.rastreamento-data {
    font-size: 12px;
    color: #999;
}

/* ===== Toast Notifications ===== */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 2000;
    max-width: 400px;
}

.toast {
    background: white;
    padding: 16px;
    margin-bottom: 10px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    animation: slideIn 0.3s;
    border-left: 4px solid;
}

.toast.sucesso {
    border-left-color: var(--success-color);
}

.toast.erro {
    border-left-color: var(--error-color);
}

.toast.info {
    border-left-color: var(--primary-color);
}

/* ===== Animações ===== */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

@keyframes slideIn {
    from {
        transform: translateX(400px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* ===== Loading Spinner ===== */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(0,0,0,0.1);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* ===== Responsividade ===== */
@media (max-width: 480px) {
    .container {
        padding: 0 8px;
    }

    .header h1 {
        font-size: 24px;
    }

    .btn {
        padding: 10px 16px;
        font-size: 15px;
    }
}

/* ===== Modo Noturno ===== */
body.dark-mode {
    background-color: #121212;
    color: #E0E0E0;
}

body.dark-mode .adicionar-encomenda,
body.dark-mode .encomenda-card,
body.dark-mode .modal-content,
body.dark-mode .stat-card {
    background-color: #1E1E1E;
    color: #E0E0E0;
}

body.dark-mode .form-group input {
    background-color: #2A2A2A;
    color: #E0E0E0;
    border-color: #444;
}

body.dark-mode .form-group input:focus {
    border-color: var(--primary-color);
}

body.dark-mode .encomenda-info {
    color: #999;
}

body.dark-mode .rastreamento-info h4 {
    color: #E0E0E0;
}

body.dark-mode .rastreamento-info p {
    color: #BBB;
}

body.dark-mode .tabs {
    border-bottom-color: #444;
}

body.dark-mode .tab-btn {
    color: #666;
}

body.dark-mode .mensagem {
    background-color: #2A2A2A;
    color: #E0E0E0;
}

body.dark-mode .vazio {
    color: #666;
}

@media (prefers-color-scheme: dark) {
    :root {
        --text-color: #E0E0E0;
        --border-color: #444;
    }

    html, body {
        background-color: #121212;
    }
}