/* Portafolio Financiero - Estilos */
:root {
    --bg: #0f1419;
    --surface: #1a2332;
    --border: #2d3a4d;
    --text: #e6edf3;
    --muted: #8b949e;
    --accent: #58a6ff;
    --success: #3fb950;
    --danger: #f85149;
    --radius: 8px;
}

* { box-sizing: border-box; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    margin: 0;
    min-height: 100vh;
    line-height: 1.5;
}

/* Auth */
.auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 1rem;
}
.auth-box {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    width: 100%;
    max-width: 360px;
}
.auth-box h1 { font-size: 1.35rem; margin: 0 0 0.25rem 0; }
.auth-box .subtitle { color: var(--muted); margin: 0 0 1rem 0; }
.auth-box label { display: block; margin-top: 0.75rem; margin-bottom: 0.25rem; font-size: 0.9rem; }
.auth-box input, .auth-box select {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg);
    color: var(--text);
    font-size: 1rem;
}
.auth-box button {
    width: 100%;
    margin-top: 1.25rem;
    padding: 0.6rem;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    cursor: pointer;
}
.auth-box button:hover { opacity: 0.9; }
.auth-box .error { color: var(--danger); margin-top: 0.5rem; font-size: 0.9rem; }
.auth-box .success { color: var(--success); margin-top: 0.5rem; }
.auth-box a { color: var(--accent); text-decoration: none; }
.auth-box a:hover { text-decoration: underline; }
.auth-box p:last-of-type { margin-top: 1rem; text-align: center; }

/* Layout dashboard */
.dash-header {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 0.75rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.dash-header h1 { font-size: 1.15rem; margin: 0; }
.dash-header a { color: var(--muted); text-decoration: none; font-size: 0.9rem; }
.dash-header a:hover { color: var(--accent); }

.dash-nav {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--border);
    padding-bottom: 0.5rem;
}
.dash-nav button {
    padding: 0.5rem 1rem;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text);
    cursor: pointer;
    font-size: 0.9rem;
}
.dash-nav button:hover, .dash-nav button.active {
    background: var(--surface);
    border-color: var(--accent);
    color: var(--accent);
}

.dash-content { padding: 1.5rem; max-width: 960px; margin: 0 auto; }
.dash-section { display: none; }
.dash-section.visible { display: block; }

/* Cards */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
    margin-bottom: 1rem;
}
.card h2 { font-size: 1rem; margin: 0 0 0.75rem 0; color: var(--muted); }

/* Resumen números */
.resumen-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 1rem;
}
.resumen-item { padding: 0.75rem; background: var(--bg); border-radius: 6px; }
.resumen-item .label { font-size: 0.8rem; color: var(--muted); }
.resumen-item .value { font-size: 1.25rem; font-weight: 600; }
.resumen-item .value.positive { color: var(--success); }
.resumen-item .value.negative { color: var(--danger); }

/* Tabla */
table { width: 100%; border-collapse: collapse; }
th, td { padding: 0.5rem 0.75rem; text-align: left; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-size: 0.85rem; font-weight: 500; }
tr:hover { background: rgba(255,255,255,0.03); }

/* Formularios */
.form-row { margin-bottom: 1rem; }
.form-row label { display: block; margin-bottom: 0.25rem; font-size: 0.9rem; }
.form-row input, .form-row select, .form-row textarea {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg);
    color: var(--text);
    font-size: 1rem;
}
.form-row textarea { min-height: 80px; resize: vertical; }
.btn { padding: 0.5rem 1rem; border-radius: 6px; border: none; cursor: pointer; font-size: 0.95rem; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { opacity: 0.9; }

.loading { color: var(--muted); }
.err-msg { color: var(--danger); font-size: 0.9rem; margin-top: 0.5rem; }