/* --- Reseteo Básico y Variables --- */
:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --background-color: #f8f9fa;
    --surface-color: #ffffff;
    --text-color: #333;
    --border-color: #dee2e6;
    --font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    --status-ok-bg: #d4edda;
    --status-ok-text: #155724;
    --status-warn-bg: #fff3cd;
    --status-warn-text: #856404;
    --status-fail-bg: #f8d7da;
    --status-fail-text: #721c24;
    --code-bg: #e9ecef;
    --section-header-bg: #f5f7f9;
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
body {
    font-family: var(--font-family);
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* --- Header, Navegación y Estilos Generales --- */
.main-header {
    background-color: var(--surface-color);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    padding: 0.5rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}
.main-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo {
    height: 70px;
    width: auto;
}
.nav-toggle {
    display: block;
    font-size: 1.5rem;
    background: none;
    border: none;
    cursor: pointer;
}
.nav-menu {
    display: none;
    list-style: none;
}
.nav-menu.active {
    display: block;
    position: absolute;
    top: 60px;
    left: 0;
    width: 100%;
    background-color: var(--surface-color);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}
.nav-menu li {
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}
.nav-menu li:last-child {
    border-bottom: none;
}
.nav-menu a {
    display: block;
    padding: 1rem;
    text-decoration: none;
    color: var(--text-color);
    font-weight: bold;
}
.nav-menu a:hover {
    background-color: var(--background-color);
}
.dropdown-menu {
    display: none;
    list-style: none;
}
.dropdown.active .dropdown-menu {
    display: block;
}
.dropdown-menu a {
    font-weight: normal;
    background-color: #fdfdfd;
}
.dropdown-menu a:hover {
    background-color: #efefef;
}
main {
    padding: 1.5rem 0;
}
.tool-page {
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem 2rem;
}
.tool-page h1,
.tool-page p {
    margin-bottom: 1rem;
}
.tool-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
/* --- CONTROLES DE FORMULARIO: ESTÁNDAR DEL SITIO ---
   Aspecto único para los campos de búsqueda de todas las herramientas.
   Las páginas ya no deben redefinirlo en su propio <style>: si hay que
   cambiar cómo se ven los campos, se cambia aquí y cambian todos. */
.form-group input[type="text"],
.form-group input[type="search"],
.form-group input[type="url"],
.form-group input[type="email"],
.form-group input[type="number"],
.form-group select,
.form-group textarea,
.form-col input[type="text"],
.quick-dns-form input[type="text"] {
    box-sizing: border-box;
    padding: 12px 14px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 16px; /* 16px evita que iOS haga zoom solo al enfocar el campo */
    font-family: var(--font-family);
    color: var(--text-color);
    background-color: var(--surface-color);
    outline: none;
    transition:
        border-color 0.2s ease,
        box-shadow 0.2s ease;
}

/* Ancho: los campos apilados ocupan la fila; el del buscador de inicio crece */
.form-group input[type="text"],
.form-group input[type="search"],
.form-group input[type="url"],
.form-group input[type="email"],
.form-group input[type="number"],
.form-group select,
.form-group textarea,
.form-col input[type="text"] {
    width: 100%;
}
.quick-dns-form input[type="text"] {
    flex-grow: 1;
    min-width: 280px;
}

/* Etiqueta del campo: siempre en bloque y con aire sobre el control. Sin esto
   queda pegada a la caja, porque <label> es inline por defecto.
   No alcanza a .check-card, que es un <label> usado como botón y va anidado. */
.form-group > label,
.form-col > label,
.input-card > label,
.tool-form > label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #2c3e50;
}

.form-group input[type="text"]:focus,
.form-group input[type="search"]:focus,
.form-group input[type="url"]:focus,
.form-group input[type="email"]:focus,
.form-group input[type="number"]:focus,
.form-group select:focus,
.form-group textarea:focus,
.form-col input[type="text"]:focus,
.quick-dns-form input[type="text"]:focus {
    border-color: #3498db;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.18);
}
.btn-submit {
    padding: 0.75rem 1.5rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
    align-self: flex-start;
}
.btn-secondary {
    padding: 0.75rem 1.5rem;
    background-color: var(--secondary-color);
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
    text-decoration: none;
    text-align: center;
}

.error-notice {
    color: var(--status-fail-text);
    background-color: var(--status-fail-bg);
    border: 1px solid #f5c6cb;
    padding: 1rem;
    border-radius: 4px;
    margin-top: 2rem;
}
.success-notice {
    color: var(--status-ok-text);
    background-color: var(--status-ok-bg);
    border: 1px solid var(--border-color);
    padding: 1rem;
    border-radius: 4px;
    margin-top: 2rem;
}
.info-notice {
    background-color: #e7f3fe;
    border-left: 4px solid #2196f3;
    padding: 1rem;
    margin-bottom: 1.5rem;
}

.loader {
    padding: 2rem;
    text-align: center;
    font-weight: bold;
    color: var(--secondary-color);
    background-color: var(--background-color);
    border: 1px dashed var(--border-color);
    border-radius: 8px;
}
.mono {
    font-family:
        "SFMono-Regular", Consolas, "Liberation Mono", Menlo, Courier, monospace;
    font-size: 0.9em;
}
.status-badge {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    font-size: 0.8rem;
    font-weight: bold;
    border-radius: 12px;
}
.status-badge.status-ok {
    background-color: var(--status-ok-bg);
    color: var(--status-ok-text);
}
.status-badge.status-warn {
    background-color: var(--status-warn-bg);
    color: var(--status-warn-text);
}
.status-badge.status-fail {
    background-color: var(--status-fail-bg);
    color: var(--status-fail-text);
}
.tooltip {
    display: inline-block;
    margin-left: 8px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background-color: var(--secondary-color);
    color: white;
    text-align: center;
    font-size: 12px;
    line-height: 18px;
    cursor: help;
}
.code-block {
    background-color: var(--code-bg);
    padding: 0.75rem;
    border-radius: 4px;
    margin-top: 0.5rem;
    white-space: pre-wrap;
}

/* --- ESTILOS IP-LOOKUP Y INDEX --- */
.ip-details-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}
@media (min-width: 992px) {
    .ip-details-grid {
        grid-template-columns: 1fr 400px;
    }
}
.ip-info-list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.ip-info-list li {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    border-bottom: 1px solid #f0f0f0;
}
.copy-icon {
    cursor: pointer;
}
.map-container iframe {
    width: 100%;
    height: 350px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
}
.results-box {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-top: 2rem;
}
.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--section-header-bg);
    padding: 0.75rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
}
.copy-btn {
    padding: 0.5rem 1rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 0.9rem;
    cursor: pointer;
}
.ip-info-list-tool {
    list-style: none;
    padding: 1.25rem;
    margin: 0;
}
.ip-info-list-tool li {
    padding: 0.5rem 0;
}
.results-footer {
    background-color: var(--status-warn-bg);
    color: var(--status-warn-text);
    padding: 1rem 1.25rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.9rem;
    border-bottom-left-radius: 8px;
    border-bottom-right-radius: 8px;
}

/* --- ESTILOS IP-BLACKLIST --- */
.blacklist-summary {
    padding: 1rem 1.25rem;
    font-weight: bold;
    border-bottom: 1px solid var(--border-color);
}
.blacklist-summary.status-clean {
    background-color: var(--status-ok-bg);
    color: var(--status-ok-text);
}
.blacklist-summary.status-listed {
    background-color: var(--status-fail-bg);
    color: var(--status-fail-text);
}
.blacklist-disclaimer {
    padding: 1rem 1.25rem;
    font-size: 0.9rem;
    background-color: var(--background-color);
    border-bottom: 1px solid var(--border-color);
}
.blacklist-results-list {
    list-style: none;
    padding: 1.25rem;
    margin: 0;
}
.blacklist-results-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid #f0f0f0;
}
.blacklist-results-list li:last-child {
    border-bottom: none;
}
.list-name {
    flex-grow: 1;
}
.status-text.status-listed {
    color: var(--status-fail-text);
    font-weight: bold;
}
.status-text.status-clean {
    color: var(--status-ok-text);
    font-weight: bold;
}

/* --- ESTILOS SUBNET-CALCULATOR --- */
.subnet-results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-top: 2rem;
}
.result-box {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    background-color: var(--surface-color);
}
.result-box h3 {
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}
.result-box pre {
    background-color: var(--code-bg);
    padding: 0.75rem;
    border-radius: 4px;
    white-space: pre-wrap;
    word-break: break-all;
}
.result-box ul {
    list-style: none;
    padding: 0;
}
.result-box ul li {
    padding: 0.25rem 0;
}

.result-box-title {
    display: block;
    font-weight: bold;
    color: var(--secondary-color);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}
.result-box-value {
    font-family:
        "SFMono-Regular", Consolas, "Liberation Mono", Menlo, Courier, monospace;
    font-size: 1.1rem;
    word-break: break-all;
}

/* --- ESTILOS FILE-SIZE-CONVERTER --- */
.form-control-lg {
    font-size: 1.5rem;
    padding: 1rem;
    width: 100%;
}
.conversion-result-box {
    font-size: 1.2rem;
    text-align: center;
}

/* --- ESTILOS EMAIL TOOLS --- */
.results-footer-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}
.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    background-color: var(--background-color);
    padding: 1rem;
    border-radius: 8px;
}
.checkbox-group input[type="checkbox"] {
    margin-right: 0.5rem;
}

/* --- ESTILOS DEL REPORTE DNS --- */
#results {
    margin-top: 2rem;
}
.dns-report-container {
    padding: 1rem;
}
.dns-report-container h2 {
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
    font-size: 1.5rem;
}
.report-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 0.5rem 1rem;
    padding: 1rem;
    background-color: #f8f9fa;
    border-radius: 6px;
    margin-bottom: 2rem;
    font-size: 0.9rem;
}
.report-section {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 1.5rem;
    overflow: hidden;
}
.report-section.section-has-warning {
    border-color: var(--status-warn-text);
}
.report-section.section-has-failure {
    border-color: var(--status-fail-text);
}
.report-section-header {
    background-color: var(--section-header-bg);
    padding: 0.75rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
}
.section-has-warning .report-section-header {
    background-color: var(--status-warn-bg);
}
.section-has-failure .report-section-header {
    background-color: var(--status-fail-bg);
}
.report-section-header h3 {
    margin: 0;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.report-section-header .icon {
    font-size: 1.2rem;
}
.report-section-content {
    padding: 1.25rem;
}
.section-description {
    font-size: 0.9rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px dashed #e0e0e0;
}
.consistency-check {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 4px;
    font-weight: 500;
}
.consistency-check .status-badge {
    margin-right: 0.5rem;
}
.consistency-check.status-ok {
    background-color: var(--status-ok-bg);
}
.consistency-check.status-fail {
    background-color: var(--status-fail-bg);
}

/* Filas de datos simples (SOA, A, TXT) */
.report-row {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    padding: 0.75rem 0;
    border-bottom: 1px solid #f0f0f0;
}
.report-section-content > .report-row:last-child {
    border-bottom: none;
}
.report-label {
    flex-basis: 250px;
    flex-grow: 1;
    font-weight: bold;
    color: #555;
    padding-right: 1rem;
}
.report-value {
    flex-basis: 60%;
    flex-grow: 999;
    word-break: break-all;
}
.report-row.full-width {
    flex-basis: 100%;
    padding: 0;
}

/* Footer de sección */
.report-section-footer {
    padding: 0.75rem 1.25rem;
    background-color: var(--section-header-bg);
    border-top: 1px solid var(--border-color);
    text-align: right;
    font-size: 0.9rem;
    font-weight: bold;
}
.footer-status {
    margin-left: 1rem;
}
.footer-status.status-ok {
    color: var(--status-ok-text);
}
.footer-status.status-warn {
    color: var(--status-warn-text);
}
.footer-status.status-fail {
    color: var(--status-fail-text);
}

/* --- Tablas (NS, MX, A/WWW) --- */
.report-table {
    width: 100%;
    font-size: 0.9rem;
}
.report-table-header {
    display: grid;
    font-weight: bold;
    color: var(--secondary-color);
    border-bottom: 2px solid var(--border-color);
    padding: 0.8rem 0;
    gap: 1rem;
}
.report-table-row {
    display: grid;
    border-bottom: 1px solid #f0f0f0;
    padding: 0.8rem 0;
    gap: 1rem;
    align-items: center;
}
.report-table-body > .report-table-row:last-child {
    border-bottom: none;
}

/* Definición de columnas para cada tipo de tabla */
.ns-section .report-table-header,
.ns-section .report-table-row {
    grid-template-columns: 2fr 1.5fr 0.5fr 1fr;
}
.mx-section .report-table-header,
.mx-section .report-table-row {
    grid-template-columns: 2fr 1.5fr 0.5fr 0.5fr 2fr;
}
.a-www-section .report-table-header,
.a-www-section .report-table-row {
    grid-template-columns: 2fr 0.5fr 0.5fr 0.5fr 2fr;
}

/* --- Footer Principal (RESTAURADO) --- */
.main-footer {
    background-color: #343a40;
    color: #f8f9fa;
    padding: 2rem 0;
    margin-top: 2rem;
}
.main-footer a {
    color: #ffffff;
    text-decoration: none;
}
.main-footer a:hover {
    text-decoration: underline;
}
.attribution {
    text-align: center;
    margin-top: 1rem;
    color: #adb5bd;
}

/* --- Estilos Responsivos --- */
@media (min-width: 769px) {
    /* Navegación para escritorio */
    .nav-toggle {
        display: none;
    }
    .nav-menu {
        display: flex;
        position: static;
        width: auto;
        box-shadow: none;
        background-color: transparent;
    }
    .nav-menu.active {
        display: flex;
    }
    .main-header .nav-menu > li {
        border: none;
    }
    .main-header .nav-menu > li > a {
        padding: 0.5rem 1rem;
    }
    .dropdown {
        position: relative;
    }
    .dropdown:hover .dropdown-menu {
        display: block;
    }
    .dropdown-menu {
        position: absolute;
        top: 100%;
        left: 0;
        background-color: var(--surface-color);
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        border-radius: 4px;
        min-width: 220px;
    }
    .dropdown-menu li {
        border-bottom: 1px solid var(--border-color);
    }
    .dropdown-menu li:last-child {
        border-bottom: none;
    }
}

@media (max-width: 768px) {
    /* Vista de tarjeta para tablas en móviles */
    .report-table-header {
        display: none;
    }
    .report-table-row {
        display: block;
        border: 1px solid var(--border-color);
        padding: 1rem;
        border-radius: 6px;
        margin-bottom: 1rem;
    }
    .report-table-row > span {
        display: flex;
        justify-content: space-between;
        text-align: right;
        padding: 0.6rem 0;
        border-bottom: 1px dashed #eee;
    }
    .report-table-row > span:last-child {
        border-bottom: none;
    }
    .report-table-row > span::before {
        content: attr(data-label);
        font-weight: bold;
        text-align: left;
        padding-right: 1rem;
        color: var(--secondary-color);
    }
}

/* --- Quick DNS Bar (Diseño Mejorado) --- */
.quick-dns-bar {
    background-color: #ffffff; /* Fondo blanco limpio */
    border: 1px solid #eef0f2; /* Borde muy sutil */
    border-radius: 12px; /* Bordes más redondeados */
    padding: 2rem;
    margin-bottom: 2rem;
    text-align: center;
    /* Sombra suave para dar efecto de elevación */
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.01);
    transition: box-shadow 0.3s ease;
}

.quick-dns-bar:hover {
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.quick-dns-header {
    margin-bottom: 1.5rem;
}

.quick-dns-header h3 {
    font-size: 1.25rem;
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.quick-dns-header p {
    color: var(--secondary-color);
    font-size: 0.95rem;
}

.quick-dns-form {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap; /* Para que se adapte a móviles */
    max-width: 700px;
    margin: 0 auto;
}

/* El input de esta barra usa el estándar de controles definido más arriba. */

/* Estilo del Botón */
.quick-dns-form button {
    padding: 0.85rem 1.5rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.1s ease;
    white-space: nowrap;
}

.quick-dns-form button:hover {
    background-color: #0056b3; /* Un poco más oscuro al pasar el mouse */
    transform: translateY(-1px);
}

.quick-dns-form button:active {
    transform: translateY(0);
}

/* Contenedor de resultados en el index */
#quick-dns-results {
    margin-top: 2rem;
    text-align: left;
    opacity: 0; /* Oculto inicialmente para animar la entrada */
    animation: fadeIn 0.5s forwards;
}

@keyframes fadeIn {
    to { opacity: 1; }
}