/* ============================================================
   Monitor ML — Estilos personalizados
   Complementa o Bootstrap 5 com tema escuro premium
   ============================================================ */

/* === Variáveis de tema === */
:root {
    --cor-bg: #0f1117;
    --cor-bg-card: #1a1d27;
    --cor-bg-card-hover: #22263a;
    --cor-bg-input: #151822;
    --cor-borda: #2a2e3f;
    --cor-borda-hover: #3d4266;
    --cor-texto: #e1e4ed;
    --cor-texto-muted: #8b90a5;
    --cor-primaria: #6c5ce7;
    --cor-primaria-hover: #7f71ef;
    --cor-sucesso: #00cec9;
    --cor-perigo: #ff6b6b;
    --cor-aviso: #feca57;
    --cor-alta: #ff6b6b;
    --cor-queda: #00cec9;
    --cor-gradiente-1: #6c5ce7;
    --cor-gradiente-2: #a29bfe;
    --sombra-card: 0 4px 24px rgba(0, 0, 0, 0.3);
    --sombra-card-hover: 0 8px 40px rgba(108, 92, 231, 0.15);
    --raio-borda: 12px;
    --transicao: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* === Reset e base === */
* {
    box-sizing: border-box;
}

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

/* === Animações === */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes pulse-glow {
    0%, 100% { box-shadow: 0 0 5px rgba(108, 92, 231, 0.3); }
    50% { box-shadow: 0 0 20px rgba(108, 92, 231, 0.6); }
}

.animate-in {
    animation: fadeInUp 0.5s ease forwards;
}

.animate-in:nth-child(2) { animation-delay: 0.1s; }
.animate-in:nth-child(3) { animation-delay: 0.15s; }
.animate-in:nth-child(4) { animation-delay: 0.2s; }
.animate-in:nth-child(5) { animation-delay: 0.25s; }
.animate-in:nth-child(6) { animation-delay: 0.3s; }

/* === Navbar === */
.navbar-custom {
    background: rgba(15, 17, 23, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--cor-borda);
    padding: 0.75rem 0;
}

.navbar-custom .navbar-brand {
    font-weight: 700;
    font-size: 1.25rem;
    background: linear-gradient(135deg, var(--cor-gradiente-1), var(--cor-gradiente-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.navbar-custom .nav-link {
    color: var(--cor-texto-muted);
    transition: var(--transicao);
    border-radius: 8px;
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

.navbar-custom .nav-link:hover,
.navbar-custom .nav-link.active {
    color: var(--cor-texto);
    background: rgba(108, 92, 231, 0.1);
}

/* === Cards === */
.card-custom {
    background: var(--cor-bg-card);
    border: 1px solid var(--cor-borda);
    border-radius: var(--raio-borda);
    box-shadow: var(--sombra-card);
    transition: var(--transicao);
    overflow: hidden;
}

.card-custom:hover {
    border-color: var(--cor-borda-hover);
    box-shadow: var(--sombra-card-hover);
    transform: translateY(-2px);
}

.card-custom .card-header {
    background: transparent;
    border-bottom: 1px solid var(--cor-borda);
    padding: 1rem 1.25rem;
    font-weight: 600;
}

.card-custom .card-body {
    padding: 1.25rem;
}

/* === Cards de status (topo do dashboard) === */
.status-card {
    background: var(--cor-bg-card);
    border: 1px solid var(--cor-borda);
    border-radius: var(--raio-borda);
    padding: 1.25rem;
    transition: var(--transicao);
    position: relative;
    overflow: hidden;
}

.status-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--cor-gradiente-1), var(--cor-gradiente-2));
    opacity: 0;
    transition: var(--transicao);
}

.status-card:hover::before {
    opacity: 1;
}

.status-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--sombra-card-hover);
}

.status-card .status-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    flex-shrink: 0;
}

.status-card .status-value {
    font-size: 1.75rem;
    font-weight: 700;
    line-height: 1.1;
}

.status-card .status-label {
    color: var(--cor-texto-muted);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 0.15rem;
}

/* === Tabela de produtos === */
.table-custom {
    --bs-table-bg: transparent;
    --bs-table-color: var(--cor-texto);
    margin-bottom: 0;
}

.table-custom thead th {
    border-bottom: 2px solid var(--cor-borda);
    color: var(--cor-texto-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 0.75rem 1rem;
    font-weight: 600;
}

.table-custom tbody tr {
    transition: var(--transicao);
    border-bottom: 1px solid var(--cor-borda);
}

.table-custom tbody tr:hover {
    background: var(--cor-bg-card-hover);
}

.table-custom tbody td {
    padding: 0.875rem 1rem;
    vertical-align: middle;
    font-size: 0.9rem;
}

/* === Badges de variação === */
.badge-variacao {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 0.3em 0.65em;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 600;
}

.badge-queda {
    background: rgba(0, 206, 201, 0.15);
    color: var(--cor-queda);
}

.badge-alta {
    background: rgba(255, 107, 107, 0.15);
    color: var(--cor-alta);
}

.badge-neutro {
    background: rgba(139, 144, 165, 0.15);
    color: var(--cor-texto-muted);
}

/* === Produto: imagem thumb === */
.produto-thumb {
    width: 56px;
    height: 56px;
    border-radius: 10px;
    object-fit: cover;
    border: 1px solid var(--cor-borda);
    background: var(--cor-bg);
    transition: var(--transicao);
}

.produto-thumb:hover {
    transform: scale(1.08);
    border-color: var(--cor-primaria);
}

/* === Botões === */
.btn-primario {
    background: linear-gradient(135deg, var(--cor-gradiente-1), var(--cor-gradiente-2));
    border: none;
    color: #fff;
    font-weight: 600;
    padding: 0.6rem 1.5rem;
    border-radius: 8px;
    transition: var(--transicao);
    position: relative;
    overflow: hidden;
}

.btn-primario::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.15), transparent);
    opacity: 0;
    transition: var(--transicao);
}

.btn-primario:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(108, 92, 231, 0.4);
    color: #fff;
}

.btn-primario:hover::after {
    opacity: 1;
}

.btn-outline-custom {
    border: 1px solid var(--cor-borda);
    color: var(--cor-texto);
    border-radius: 8px;
    padding: 0.5rem 1rem;
    transition: var(--transicao);
    background: transparent;
    font-size: 0.875rem;
}

.btn-outline-custom:hover {
    border-color: var(--cor-primaria);
    color: var(--cor-primaria);
    background: rgba(108, 92, 231, 0.08);
}

/* === Formulários === */
.form-control-custom,
.form-select-custom {
    background: var(--cor-bg-input);
    border: 1px solid var(--cor-borda);
    color: var(--cor-texto);
    border-radius: 8px;
    padding: 0.65rem 1rem;
    transition: var(--transicao);
}

.form-control-custom:focus,
.form-select-custom:focus {
    background: var(--cor-bg-input);
    border-color: var(--cor-primaria);
    color: var(--cor-texto);
    box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.2);
    outline: none;
}

.form-control-custom::placeholder {
    color: var(--cor-texto-muted);
}

.form-label-custom {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--cor-texto-muted);
    margin-bottom: 0.35rem;
}

/* === Indicadores de conexão === */
.conexao-status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 0.35em 0.8em;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.conexao-ativa {
    background: rgba(0, 206, 201, 0.12);
    color: var(--cor-sucesso);
}

.conexao-inativa {
    background: rgba(255, 107, 107, 0.12);
    color: var(--cor-perigo);
}

.conexao-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}

.conexao-ativa .conexao-dot {
    background: var(--cor-sucesso);
    animation: pulse-glow 2s infinite;
    box-shadow: 0 0 6px var(--cor-sucesso);
}

.conexao-inativa .conexao-dot {
    background: var(--cor-perigo);
}

/* === Página de login === */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--cor-bg);
    padding: 1rem;
}

.login-card {
    background: var(--cor-bg-card);
    border: 1px solid var(--cor-borda);
    border-radius: 16px;
    padding: 2.5rem;
    width: 100%;
    max-width: 420px;
    box-shadow: var(--sombra-card);
}

.login-card h1 {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--cor-gradiente-1), var(--cor-gradiente-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-align: center;
    margin-bottom: 0.25rem;
}

.login-card .subtitle {
    text-align: center;
    color: var(--cor-texto-muted);
    font-size: 0.9rem;
    margin-bottom: 1.75rem;
}

/* === Página de produto (detalhe) === */
.preco-destaque {
    font-size: 2.25rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--cor-gradiente-1), var(--cor-gradiente-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.produto-imagem-grande {
    width: 100%;
    max-width: 300px;
    border-radius: var(--raio-borda);
    border: 1px solid var(--cor-borda);
    object-fit: contain;
    background: #fff;
    padding: 8px;
}

/* === Alertas flash === */
.alert-custom {
    border-radius: 10px;
    border: none;
    padding: 0.875rem 1.25rem;
    font-size: 0.9rem;
    animation: fadeInUp 0.4s ease;
}

.alert-custom.alert-success {
    background: rgba(0, 206, 201, 0.12);
    color: var(--cor-sucesso);
    border-left: 4px solid var(--cor-sucesso);
}

.alert-custom.alert-danger {
    background: rgba(255, 107, 107, 0.12);
    color: var(--cor-perigo);
    border-left: 4px solid var(--cor-perigo);
}

.alert-custom.alert-warning {
    background: rgba(254, 202, 87, 0.12);
    color: var(--cor-aviso);
    border-left: 4px solid var(--cor-aviso);
}

.alert-custom.alert-info {
    background: rgba(108, 92, 231, 0.12);
    color: var(--cor-primaria);
    border-left: 4px solid var(--cor-primaria);
}

/* === Chart container === */
.chart-container {
    position: relative;
    width: 100%;
    height: 350px;
    padding: 0.5rem 0;
}

/* === Responsividade === */
@media (max-width: 768px) {
    .status-card .status-value {
        font-size: 1.4rem;
    }

    .chart-container {
        height: 250px;
    }

    .preco-destaque {
        font-size: 1.75rem;
    }

    .table-custom tbody td,
    .table-custom thead th {
        padding: 0.625rem 0.5rem;
        font-size: 0.82rem;
    }

    .produto-thumb {
        width: 42px;
        height: 42px;
    }

    .login-card {
        padding: 1.75rem;
    }
}

/* === Scrollbar personalizada === */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--cor-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--cor-borda);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--cor-borda-hover);
}

/* === Modal de confirmação === */
.modal-custom .modal-content {
    background: var(--cor-bg-card);
    border: 1px solid var(--cor-borda);
    border-radius: var(--raio-borda);
}

.modal-custom .modal-header {
    border-bottom: 1px solid var(--cor-borda);
}

.modal-custom .modal-footer {
    border-top: 1px solid var(--cor-borda);
}

/* === Utilitários === */
.text-muted-custom {
    color: var(--cor-texto-muted) !important;
}

.bg-card {
    background: var(--cor-bg-card);
}

.empty-state {
    text-align: center;
    padding: 3rem 1.5rem;
    color: var(--cor-texto-muted);
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state p {
    font-size: 1rem;
    max-width: 400px;
    margin: 0 auto;
}