:root {
    /* Cores extraídas do tema "blue" dark do CustomTkinter */
    --bg:           #242424;   /* CTk window dark  (gray14) */
    --surface:      #2b2b2b;   /* CTkFrame dark    (gray17) */
    --card:         #333333;   /* CTkFrame top     (gray20) */
    --accent:       #1F6AA5;   /* CTkButton dark */
    --accent-hover: #144870;   /* CTkButton hover dark */
    --green:        #689F38;
    --green-hover:  #558B2F;
    --text:         #DCE4EE;   /* CTkLabel text dark */
    --text-muted:   #9E9E9E;   /* placeholder dark (gray62) */
    --border:       #474747;   /* border_color dark (gray28) */
    --danger:       #e53935;
    --warning:      #FF8F00;
    --input-bg:     #343638;   /* CTkEntry bg dark */
    --radius:       6px;       /* corner_radius do CTkFrame */
}

/* Tema claro */
html[data-theme="light"] {
    --bg:           #f0f0f0;
    --surface:      #ffffff;
    --card:         #e8e8e8;
    --accent:       #1F6AA5;
    --accent-hover: #144870;
    --green:        #689F38;
    --green-hover:  #558B2F;
    --text:         #1a1a1a;
    --text-muted:   #666666;
    --border:       #cccccc;
    --danger:       #e53935;
    --warning:      #FF8F00;
    --input-bg:     #ffffff;
    --radius:       6px;
}

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

body {
    font-family: 'Segoe UI', Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
}

/* ===== NAVBAR ===== */
.navbar {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 12px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navbar .logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: bold;
    color: var(--accent);
}

.navbar .nav-tabs {
    display: flex;
    gap: 6px;
}

.navbar .nav-tab {
    padding: 8px 18px;
    border-radius: var(--radius);
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 14px;
    transition: all .2s;
    text-decoration: none;
}

.navbar .nav-tab:hover,
.navbar .nav-tab.active {
    background: var(--card);
    color: var(--text);
}

.navbar .user-info {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 13px;
    color: var(--text-muted);
}

.btn-logout {
    padding: 6px 14px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-muted);
    cursor: pointer;
    font-size: 13px;
    transition: all .2s;
}

.btn-logout:hover { border-color: var(--danger); color: var(--danger); }

/* ===== LAYOUT MAIN ===== */
.main { padding: 24px; max-width: 1200px; margin: 0 auto; }

/* ===== CARDS ===== */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 16px;
}

/* ===== TABS ===== */
.tab-header {
    display: flex;
    gap: 4px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 20px;
}

.tab-btn {
    padding: 10px 20px;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 14px;
    transition: all .2s;
}

.tab-btn.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}


.tab-content { display: none; }
.tab-content.active { display: block; }

/* ===== INPUTS ===== */
.form-group { margin-bottom: 14px; }

.form-group label {
    display: block;
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 6px;
}

input[type="text"],
input[type="password"],
input[type="number"],
select,
textarea {
    width: 100%;
    padding: 10px 14px;
    background: var(--input-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-size: 14px;
    transition: border .2s;
    outline: none;
}

input:focus, select:focus, textarea:focus {
    border-color: var(--accent);
}

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

textarea { resize: vertical; min-height: 100px; }

/* ===== BUTTONS ===== */
.btn {
    padding: 10px 20px;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all .2s;
}

.btn:disabled { opacity: .5; cursor: not-allowed; }

.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--accent-hover); }

.btn-green { background: var(--green); color: #fff; }
.btn-green:hover:not(:disabled) { background: var(--green-hover); }

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-muted);
}
.btn-outline:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }

.btn-danger { background: var(--danger); color: #fff; }

/* ===== LOGIN ===== */
.login-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg);
}

.login-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 40px;
    width: 360px;
    text-align: center;
}

.login-card .logo-img { width: 100px; margin-bottom: 16px; }
.login-card h2 { font-size: 20px; margin-bottom: 28px; }

.login-card .form-group { text-align: left; }

.checkbox-row {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-muted);
    margin: 10px 0 20px;
}

.checkbox-row input { width: auto; }

.error-msg {
    background: rgba(229, 57, 53, .15);
    border: 1px solid var(--danger);
    border-radius: 8px;
    padding: 10px 14px;
    font-size: 13px;
    color: #ef9a9a;
    margin-bottom: 14px;
    display: none;
}

/* ===== ESTOQUE ===== */
.produto-header {
    display: flex;
    align-items: flex-start;
    gap: 24px;
    margin-bottom: 20px;
}

.produto-img {
    width: 100px;
    height: 100px;
    border-radius: 12px;
    object-fit: cover;
    background: var(--card);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 12px;
    flex-shrink: 0;
    text-align: center;
}

.produto-img img { width: 100%; height: 100%; border-radius: 12px; object-fit: cover; }

.search-row {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.search-row input { max-width: 280px; }

.loading-text {
    font-size: 13px;
    color: var(--warning);
    font-weight: bold;
}

.variacoes-list { display: flex; flex-direction: column; gap: 8px; margin: 16px 0; }

.variacao-row {
    background: var(--card);
    border-radius: 8px;
    padding: 10px 14px;
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.variacao-row .sku-label { font-weight: 500; min-width: 120px; }
.variacao-row .estoque-label { color: var(--text-muted); font-size: 13px; min-width: 130px; }
.variacao-row input { max-width: 90px; }
.variacao-row select { max-width: 150px; }

.precos-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}

@media (max-width: 600px) { .precos-grid { grid-template-columns: 1fr; } }

.preco-field label { font-size: 12px; color: var(--text-muted); }
.preco-atual { font-size: 18px; font-weight: bold; color: var(--accent); }

.anuncios-list { display: flex; flex-direction: column; gap: 8px; }

.anuncio-card {
    background: var(--card);
    border-radius: 8px;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.anuncio-card .plataforma-icon { width: 36px; height: 36px; object-fit: contain; }
.anuncio-card .anuncio-nome { font-weight: 500; flex: 1; }
.anuncio-card .preco-atual-label { font-size: 13px; color: var(--text-muted); white-space: nowrap; }
.anuncio-card input { max-width: 110px; }

.status-icon { font-size: 18px; }

/* ===== CALCULADORAS ===== */
.calc-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
}

.resultado-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
}

.resultado-item:last-child { border-bottom: none; }
.resultado-item .valor { font-weight: bold; color: var(--accent); }

/* ===== ADMIN ===== */
.table-wrap { overflow-x: auto; }

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

th, td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

th { color: var(--text-muted); font-weight: 500; font-size: 13px; }
tr:hover td { background: var(--card); }

.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.badge-green { background: rgba(104, 159, 56, .2); color: #aed581; }
.badge-blue  { background: rgba(31, 157, 139, .2); color: #80cbc4; }
.badge-red   { background: rgba(229, 57, 53, .2); color: #ef9a9a; }

/* ===== SPINNER ===== */
.spinner {
    display: inline-block;
    width: 16px; height: 16px;
    border: 2px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin .7s linear infinite;
    vertical-align: middle;
}

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

/* ===== TOAST ===== */
#toast {
    position: fixed;
    bottom: 24px; right: 24px;
    padding: 12px 20px;
    border-radius: 8px;
    font-size: 14px;
    z-index: 9999;
    opacity: 0;
    transition: opacity .3s;
    pointer-events: none;
}

#toast.show { opacity: 1; }
#toast.success { background: var(--accent); color: #fff; }
#toast.error   { background: var(--danger); color: #fff; }
#toast.warning { background: var(--warning); color: #fff; }