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

*, *::before, *::after { box-sizing: border-box; }

:root {
    --primary-color: #2563eb; /* Azul para botões e destaques */
    --secondary-color: #3b82f6; /* Azul mais claro */
    --accent-color: #10b981; /* Verde para sucesso */
    --text-color: #333;
    --background-color: #f3f4f6;
    --card-background: #ffffff;
    --border-color: #d1d5db;
    --error-color: #dc2626; /* Vermelho para erros */
    --zero-stock-bg: #ffe0e0; /* Fundo vermelho claro para estoque zero */
    --zero-stock-text: #a00; /* Texto vermelho escuro para estoque zero */
    --inactive-bg: #e5e7eb; /* Cinza para itens inativos */
    --inactive-text: #6b7280; /* Texto cinza para itens inativos */
    --link-color: #2563eb;
    --link-hover-color: #3b82f6;
}

body {
    font-family: 'Inter', sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

.login-body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
}

.login-container {
    background-color: var(--card-background);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.08);
    width: 100%;
    max-width: 420px;
    text-align: left;
}

.login-header { margin-bottom: 1.25rem; }
.login-header .brand { font-size: 1.4rem; font-weight: 700; color: var(--primary-color); }
.login-header .subtitle { font-size: 0.95rem; color: #6b7280; margin-top: 0.25rem; }

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

.input-with-icon { position: relative; }
.input-with-icon input { padding-right: 2.25rem; }
.toggle-pass { position: absolute; right: 0.5rem; top: 50%; transform: translateY(-50%); background: none; border: none; color: #6b7280; cursor: pointer; font-size: 1rem; padding: 0; line-height: 1; }
.input-with-icon input:focus + .toggle-pass, .input-with-icon:hover .toggle-pass { color: #374151; }

.main-container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 1.5rem;
    background-color: var(--card-background);
    border-radius: 12px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--border-color);
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
    flex-wrap: wrap; 
    gap: 1rem; 
}

header h1 {
    color: var(--primary-color);
    margin: 0;
    font-weight: 700;
    font-size: 1.8rem;
}

nav {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    flex-wrap: wrap;
    margin-top: 0; 
}

.form-group {
    margin-bottom: 1rem;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #555;
}

input[type="email"],
input[type="password"],
input[type="text"],
input[type="number"],
select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-sizing: border-box; 
    font-size: 1rem;
    transition: border-color 0.2s;
}

input[type="email"]:focus,
input[type="password"]:focus,
input[type="text"]:focus,
input[type="number"]:focus,
select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

button, .button {
    display: inline-flex; 
    align-items: center; 
    justify-content: center; 
    gap: 0.5rem; 
    padding: 0.75rem 1.25rem;
    border: none;
    border-radius: 8px;
    background-color: var(--primary-color);
    color: white;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.2s, box-shadow 0.2s;
    text-decoration: none;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1); 
}

button:hover, .button:hover {
    background-color: var(--secondary-color);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15); 
}

.logout-button {
    background-color: var(--error-color);
}

.logout-button:hover {
    background-color: #ef4444;
}

.back-button { 
    background-color: #6b7280;
}

.back-button:hover {
    background-color: #4b5563;
}

main h2 {
    color: var(--primary-color);
    margin-top: 1.5rem;
    margin-bottom: 1.5rem;
    font-size: 1.6rem;
    font-weight: 700;
}

hr {
    border: 0;
    height: 1px;
    background-color: var(--border-color);
    margin: 2rem 0;
}

/* Supplier Controls and Grid (for suppliers.php) */
.supplier-controls, .product-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
    align-items: center;
    justify-content: space-between; 
}

.search-input {
    flex-grow: 1; 
    max-width: 400px; 
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
}

.add-inline-button {
    background-color: var(--accent-color);
}

.add-inline-button:hover {
    background-color: #0d926b;
}

.supplier-list-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.supplier-card {
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #222;
    color: white;
    border: 1px solid #444;
    border-radius: 12px;
    padding: 1.5rem 1rem;
    text-decoration: none;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
    transition: transform 0.2s, box-shadow 0.2s, background-color 0.2s;
    text-align: center;
    font-size: 1.2rem;
    font-weight: 600;
    min-height: 80px;
    position: relative;
}

.supplier-card:not(.inactive-card):hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.3);
    background-color: #333;
}

.supplier-card.inactive-card {
    background-color: var(--inactive-bg);
    color: var(--inactive-text);
    border-color: #9ca3af;
    cursor: not-allowed;
    opacity: 0.7;
    box-shadow: none;
}

.supplier-card.inactive-card h3 {
    color: var(--inactive-text);
}

.supplier-card h3 {
    color: white;
    margin: 0;
}

.supplier-card-link {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
    text-decoration: none;
    color: inherit;
}

.card-actions {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    display: flex;
    gap: 0.5rem;
}

.icon-button {
    background-color: var(--primary-color);
    color: #fff;
    border: none;
    border-radius: 8px;
    padding: 6px 12px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.2s;
    display: inline-flex;
    justify-content: center;
    align-items: center;
}

.icon-button:hover {
    background-color: var(--secondary-color);
    transform: translateY(-1px);
}

/* Product Table */
.table-responsive {
    overflow-x: auto; 
}

.product-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
    background-color: var(--card-background);
    border-radius: 8px;
    overflow: hidden; 
}

.product-table th, .product-table td {
    border: 1px solid var(--border-color);
    padding: 0.8rem 1rem;
    text-align: left;
}

.product-table th {
    background-color: var(--primary-color);
    color: white;
    font-weight: 600;
    position: sticky; 
    top: 0;
}

.product-table tbody tr:nth-child(even) {
    background-color: #f9fafb;
}

.product-table tbody tr:hover {
    background-color: #f3f4f6;
}

/* Estilo para produtos com estoque zerado */
.product-table tbody tr.zero-stock {
    background-color: var(--zero-stock-bg);
    color: var(--zero-stock-text);
    font-weight: 600;
}

.product-table tbody tr.zero-stock:hover {
    background-color: #ffd0d0; 
}

.product-table tbody tr.inactive-row {
    background-color: var(--inactive-bg);
    color: var(--inactive-text);
    opacity: 0.7;
    cursor: not-allowed;
}

.product-table tbody tr.inactive-row:hover {
    background-color: var(--inactive-bg);
}

.stock-cell input.stock-input {
    width: 120px;
    padding: 0.4rem 0.6rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    text-align: center;
    font-size: 0.95rem;
    transition: background-color 0.2s;
}

.stock-cell input.stock-input:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

.error-message {
    color: var(--error-color);
    background-color: #fee2e2;
    border: 1px solid var(--error-color);
    padding: 0.75rem;
    margin-bottom: 1rem;
    border-radius: 8px;
    font-weight: 600;
}

.success-message {
    color: var(--accent-color);
    background-color: #d1fae5;
    border: 1px solid var(--accent-color);
    padding: 0.75rem;
    margin-bottom: 1rem;
    border-radius: 8px;
    font-weight: 600;
}

.info-message {
    text-align: center;
    padding: 1rem;
    background-color: #e0f2fe;
    color: #0c4a6e;
    border: 1px solid #90cdf4;
    border-radius: 8px;
    margin-top: 1rem;
}

.loading-message {
    text-align: center;
    padding: 1rem;
    color: #666;
    font-style: italic;
}

.validation-error {
    color: var(--error-color);
    font-size: 0.85rem;
    margin-top: 0.25rem;
    display: block; 
}

.form-message {
    margin-top: 1rem;
    padding: 0.75rem;
    border-radius: 8px;
    font-weight: 600;
    text-align: center;
}

.control-buttons {
    display: flex;
    gap: 0.75rem;
}

/* User Management Table */
.user-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
    background-color: var(--card-background);
    border-radius: 8px;
    overflow: hidden;
}

.user-table th, .user-table td {
    border: 1px solid var(--border-color);
    padding: 0.8rem 1rem;
    text-align: left;
}

.user-table th {
    background-color: var(--primary-color);
    color: white;
    font-weight: 600;
}

.user-table tbody tr:nth-child(even) {
    background-color: #f9fafb;
}

.user-table tbody tr:hover {
    background-color: #f3f4f6;
}

/* --- Modal Styles --- */
.modal {
    display: none; 
    position: fixed; 
    z-index: 1000; 
    left: 0;
    top: 0;
    width: 100%; 
    height: 100%; 
    background-color: rgba(0,0,0,0.6); 
    justify-content: center;
    align-items: center;
}

.modal-content {
    background-color: var(--card-background);
    padding: 2.5rem;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    width: 90%;
    max-width: 650px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    position: relative;
    animation: fadeIn 0.3s ease-out;
}

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

.close-button {
    color: #aaa;
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.2s;
}

.close-button:hover,
.close-button:focus {
    color: var(--error-color);
    text-decoration: none;
}

.modal-buttons {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    margin-top: 1.5rem;
}

/* Modal Form Layouts (for horizontal fields) */
.form-row {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1rem;
}

.form-row .form-group {
    flex: 1;
    min-width: 150px;
    margin-bottom: 0;
}

.form-row .form-group.flex-grow {
    flex-grow: 2;
}

.form-row.stock-row .form-group.stock-col {
    flex: 1;
    min-width: 90px;
}

/* Responsividade */
@media (max-width: 768px) {
    .main-container, .login-container {
        margin: 1rem;
        padding: 1rem;
    }

    header {
        flex-direction: column;
        align-items: flex-start;
    }

    header h1 {
        font-size: 1.5rem;
        margin-bottom: 1rem;
    }

    nav {
        flex-direction: column;
        align-items: stretch;
        width: 100%;
        gap: 0.5rem;
    }

    .supplier-controls, .product-controls {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
    }

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

    .supplier-list-grid {
        grid-template-columns: 1fr;
    }

    .supplier-card {
        padding: 1rem;
        font-size: 1rem;
    }

    button, .button, .add-inline-button {
        max-width: 100%;
        min-width: 0;
        padding: 0.6rem 1rem;
        font-size: 0.95rem;
    }

    .product-table th, .product-table td {
        padding: 0.6rem 0.8rem;
        font-size: 0.9rem;
    }

    .stock-cell input.stock-input {
        width: 70px;
        font-size: 0.85rem;
        padding: 0.3rem 0.4rem;
    }

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

    .form-row {
        flex-direction: column;
        gap: 0;
    }
    .form-row .form-group {
        min-width: unset;
        flex: unset;
    }
    .form-row.stock-row {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: space-between;
    }
    .form-row.stock-row .form-group.stock-col {
        flex: 1 1 45%;
        min-width: unset;
    }
    
    .toggle-status-btn {
    border: none;
    padding: 6px 12px;
    font-size: 14px;
    border-radius: 6px;
    cursor: pointer;
    color: #fff;
    font-weight: bold;
    transition: 0.2s;
    }
    
    .btn-inativar {
        background-color: #dc3545; /* vermelho */
    }
    
    .btn-inativar:hover {
        background-color: #b02a37;
    }
    
    .btn-ativar {
        background-color: #28a745; /* verde */
    }
    
    .btn-ativar:hover {
        background-color: #1e7e34;
    }

}
.action-button-group {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.toggle-status-btn {
    border: none;
    padding: 6px 12px;
    font-size: 14px;
    border-radius: 6px;
    cursor: pointer;
    color: #fff;
    font-weight: bold;
    transition: 0.2s;
}
.btn-inativar { background-color: #dc3545; }
.btn-inativar:hover { background-color: #b02a37; }
.btn-ativar { background-color: #28a745; }
.btn-ativar:hover { background-color: #1e7e34; }