/* ==========================================================================
   app.css — estilos minimos, sem dependencia de framework externo.
   ========================================================================== */

:root {
    --color-bg: #0f172a;
    --color-surface: #1e293b;
    --color-surface-alt: #273549;
    --color-text: #e2e8f0;
    --color-muted: #94a3b8;
    --color-border: #334155;
    --color-primary: #2563eb;
    --color-primary-hover: #1d4ed8;
    --color-danger: #dc2626;
    --color-compra: #16a34a;
    --color-venda: #dc2626;
    --color-aguardar: #ca8a04;
    --color-warning-bg: #451a03;
    --color-error-bg: #450a0a;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.5;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1.5rem;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
}

.brand {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 600;
}

.topnav { display: flex; gap: 1.25rem; align-items: center; }
.topnav a { color: var(--color-muted); text-decoration: none; }
.topnav a:hover { color: var(--color-text); }

.link-button {
    background: none;
    border: none;
    color: var(--color-muted);
    cursor: pointer;
    font: inherit;
    padding: 0;
}
.link-button:hover { color: var(--color-text); }

.disclaimer {
    background: var(--color-warning-bg);
    color: #fde68a;
    text-align: center;
    padding: 0.4rem 1rem;
    font-size: 0.85rem;
}

.disclaimer-inline {
    color: var(--color-muted);
    font-size: 0.75rem;
    margin-top: 0.5rem;
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 1.5rem;
}

.footer {
    text-align: center;
    color: var(--color-muted);
    font-size: 0.75rem;
    padding: 2rem 1rem;
}

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 1.25rem;
    margin-bottom: 1.5rem;
}

h1 { font-size: 1.5rem; }
h2 { font-size: 1.1rem; margin-top: 0; }

.muted { color: var(--color-muted); }

.auth-card {
    max-width: 420px;
    margin: 2rem auto;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 2rem;
}

.stacked-form { display: flex; flex-direction: column; gap: 0.5rem; }
.stacked-form label { font-size: 0.85rem; color: var(--color-muted); margin-top: 0.5rem; }
.stacked-form input {
    padding: 0.5rem 0.6rem;
    border-radius: 6px;
    border: 1px solid var(--color-border);
    background: var(--color-surface-alt);
    color: var(--color-text);
}

.inline-form { display: inline-flex; align-items: center; gap: 0.4rem; }
.inline-form-row { display: flex; gap: 0.5rem; align-items: center; flex-wrap: wrap; margin-bottom: 0.75rem; }
.inline-form-row input[type="text"],
.inline-form-row input[type="file"] {
    padding: 0.4rem 0.6rem;
    border-radius: 6px;
    border: 1px solid var(--color-border);
    background: var(--color-surface-alt);
    color: var(--color-text);
}

.btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    font-weight: 600;
    text-decoration: none;
}
.btn-sm { padding: 0.3rem 0.6rem; font-size: 0.8rem; }
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-hover); }
.btn-secondary { background: var(--color-surface-alt); color: var(--color-text); border: 1px solid var(--color-border); }
.btn-danger { background: transparent; color: var(--color-danger); border: 1px solid var(--color-danger); }
.btn-danger:hover { background: var(--color-danger); color: #fff; }

.alert { padding: 0.75rem 1rem; border-radius: 6px; margin-bottom: 1rem; }
.alert-error { background: var(--color-error-bg); color: #fecaca; border: 1px solid var(--color-danger); }

.data-table { width: 100%; border-collapse: collapse; }
.data-table th, .data-table td {
    text-align: left;
    padding: 0.5rem 0.6rem;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.9rem;
}
.data-table th { color: var(--color-muted); font-weight: 600; }

.badge {
    display: inline-block;
    padding: 0.15rem 0.55rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 700;
    color: #fff;
}
.badge-compra { background: var(--color-compra); }
.badge-venda { background: var(--color-venda); }
.badge-aguardar { background: var(--color-aguardar); }
.badge-neutro { background: var(--color-border); color: var(--color-muted); }

.confidence { margin-left: 0.4rem; color: var(--color-muted); font-size: 0.8rem; }

.status-tag {
    text-transform: uppercase;
    font-size: 0.7rem;
    letter-spacing: 0.03em;
    color: var(--color-muted);
}

.analysis-status { margin: 1rem 0; }
.analysis-status-slot:empty { display: none; }
.analysis-result { display: flex; flex-direction: column; gap: 0.4rem; align-items: flex-start; }

.qr-wrap { display: flex; justify-content: center; margin: 1rem 0; }
.totp-secret {
    background: var(--color-surface-alt);
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    letter-spacing: 0.05em;
}

.csv-import summary { cursor: pointer; color: var(--color-muted); margin-bottom: 0.5rem; }