/* css/herramientas.css
 * =============================================================================
 * IAFLOW · SUITE DE HERRAMIENTAS (índice + vista de herramienta)
 * =============================================================================
 * Este archivo NO EXISTÍA: herramientas-index.php y herramienta.php declaraban
 * $css_dinamico = ['herramientas'] pero core/header.php cae a un fallback
 * silencioso cuando el fichero no existe (ver iaflow_css_href), así que las
 * dos páginas se habrían servido sin ningún estilo propio. Usa únicamente los
 * tokens ya definidos en global.css (colores, espaciados, sombras) para que
 * encaje con el resto del sitio y con el tema oscuro sin duplicar reglas.
 * Los inputs de formulario (input/textarea/select sin class) ya reciben su
 * estilo base de global.css §9 — aquí solo se resuelve layout y estados.
 * ============================================================================= */

/* -----------------------------------------------------------------------------
   1. ÍNDICE DE LA SUITE (/herramientas)
   ----------------------------------------------------------------------------- */
.iaflow-tools-index {
    padding: var(--space-12) var(--space-6) var(--space-20);
}

.iaflow-tools-index__head {
    max-width: 640px;
    margin: 0 auto var(--space-10);
    text-align: center;
}

.iaflow-tools-index__head h1 {
    margin-bottom: var(--space-2);
}

.iaflow-tools-index__head p {
    color: var(--text-muted);
    font-size: var(--text-lg);
}

.iaflow-tools-index__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: var(--space-6);
    max-width: 1100px;
    margin: 0 auto;
}

.iaflow-tool-card {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    padding: var(--space-6);
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    text-decoration: none;
    color: var(--text-main);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
}

.iaflow-tool-card:hover,
.iaflow-tool-card:focus-visible {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-line);
}

.iaflow-tool-card__icon {
    font-size: var(--text-3xl);
    line-height: 1;
}

.iaflow-tool-card__title {
    font-size: var(--text-lg);
    margin: 0;
}

.iaflow-tool-card__desc {
    margin: 0;
    color: var(--text-muted);
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
    flex-grow: 1;
}

.iaflow-tool-card__cta {
    margin-top: var(--space-2);
    font-weight: 600;
    color: var(--text-link);
    font-size: var(--text-sm);
}

.iaflow-tool-card__badge {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
}

/* -----------------------------------------------------------------------------
   2. VISTA DE UNA HERRAMIENTA (/herramientas/{slug})
   ----------------------------------------------------------------------------- */
.iaflow-tool {
    padding: var(--space-10) var(--space-6) var(--space-20);
    max-width: 1100px;
}

.iaflow-tool__back {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    margin-bottom: var(--space-6);
    color: var(--text-muted);
    font-size: var(--text-sm);
    text-decoration: none;
}

.iaflow-tool__back:hover { color: var(--text-link); }

.iaflow-tool__head {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    margin-bottom: var(--space-8);
}

.iaflow-tool__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    flex-shrink: 0;
    font-size: var(--text-2xl);
    background: var(--primary-bg);
    border-radius: var(--radius-md);
}

[data-theme="dark"] .iaflow-tool__icon { background: rgba(6, 182, 212, 0.12); }

.iaflow-tool__title { margin: 0 0 var(--space-1); }

.iaflow-tool__desc { margin: 0; color: var(--text-muted); }

.iaflow-tool__flows {
    margin-left: auto;
    flex-shrink: 0;
    align-self: center;
    padding: var(--space-2) var(--space-4);
    background: var(--bg-surface-2);
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: var(--text-sm);
    white-space: nowrap;
}

.iaflow-tool__grid {
    display: grid;
    grid-template-columns: minmax(0, 380px) minmax(0, 1fr);
    gap: var(--space-8);
    align-items: start;
}

@media (max-width: 900px) {
    .iaflow-tool__grid { grid-template-columns: 1fr; }
    .iaflow-tool__head { flex-wrap: wrap; }
    .iaflow-tool__flows { margin-left: 0; }
}

/* --- Formulario --- */
.iaflow-tool__form {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
    padding: var(--space-6);
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.iaflow-tool__field label {
    display: block;
    margin-bottom: var(--space-2);
    font-weight: 600;
    font-size: var(--text-sm);
}

.iaflow-tool__req { color: var(--danger-fg); }

.iaflow-tool__field textarea { resize: vertical; min-height: 110px; }

.iaflow-tool__cost {
    font-weight: 400;
    opacity: 0.85;
}

/* --- Resultado --- */
.iaflow-tool__canvas {
    min-height: 320px;
    display: flex;
    flex-direction: column;
    padding: var(--space-6);
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.iaflow-tool__empty {
    margin: auto;
    max-width: 320px;
    text-align: center;
    color: var(--text-subtle);
}

.iaflow-tool__loading {
    margin: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-4);
    color: var(--text-muted);
}

.iaflow-tool__spinner {
    width: 34px;
    height: 34px;
    border: 3px solid var(--border-subtle);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: iaflow-tool-spin 0.8s linear infinite;
}

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

@media (prefers-reduced-motion: reduce) {
    .iaflow-tool__spinner { animation-duration: 2s; }
}

.iaflow-tool__error {
    margin: auto;
    max-width: 360px;
    text-align: center;
    padding: var(--space-4) var(--space-5);
    background: var(--danger-bg);
    color: var(--danger-fg);
    border: 1px solid var(--danger-line);
    border-radius: var(--radius-md);
}

.iaflow-tool__paywall {
    margin: auto;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-4);
}

.iaflow-tool__output {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    height: 100%;
}

.iaflow-tool__text {
    margin: 0;
    font-family: var(--font-ui);
    font-size: var(--text-base);
    line-height: var(--leading-relaxed);
    white-space: pre-wrap;
    word-wrap: break-word;
}

.iaflow-tool__actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-2);
    padding-top: var(--space-4);
    border-top: 1px solid var(--border-subtle);
}

.iaflow-tool__actions-divider {
    width: 1px;
    align-self: stretch;
    background: var(--border-subtle);
    margin: 0 var(--space-1);
}

@media (max-width: 480px) {
    .iaflow-tool__actions-divider { display: none; }
}