:root {
    --color-bg: #f4f6f9;
    --color-surface: #ffffff;
    --color-border: #e2e5ea;
    --color-text: #1c2530;
    --color-text-muted: #6b7280;
    --color-primary: #2f6fed;
    --color-primary-dark: #1e4fc4;
    --color-primary-soft: #eaf1ff;
    --color-success: #1d9e75;
    --color-success-soft: #e1f5ee;
    --color-warning: #ba7517;
    --color-warning-soft: #faeeda;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: var(--color-bg);
    color: var(--color-text);
    font-size: 15px;
    line-height: 1.6;
}

a {
    color: var(--color-primary);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

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

.topbar-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 18px;
}

.topbar-right a,
.topbar-right span {
    font-size: 14px;
    color: var(--color-text-muted);
}

.btn-toggle {
    width: 36px;
    height: 36px;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-toggle:hover {
    background: var(--color-bg);
}

.btn-toggle span,
.btn-toggle span::before,
.btn-toggle span::after {
    display: block;
    width: 16px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    position: relative;
}

.btn-toggle span::before {
    content: "";
    position: absolute;
    top: -5px;
}

.btn-toggle span::after {
    content: "";
    position: absolute;
    top: 5px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 18px;
    color: var(--color-text);
}

.logo-mark {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: var(--color-primary-soft);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

/* ---------- Layout con sidebar ---------- */
.layout {
    display: grid;
    grid-template-columns: 240px 1fr 300px;
    min-height: calc(100vh - 61px);
    align-items: start;
    max-width: 1200px;
    margin: 0 auto;
    gap: 0;
}

.sidebar {
    width: 240px;
    background: var(--color-surface);
    border-right: 1px solid var(--color-border);
    padding: 20px 12px;
    flex-shrink: 0;
    position: sticky;
    top: 0;
    height: calc(100vh - 61px);
    overflow-y: auto;
    transition: margin-left 0.2s ease, opacity 0.2s ease;
}

.sidebar.collapsed {
    margin-left: -240px;
    opacity: 0;
}

.sidebar nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 4px;
}

.sidebar nav a:hover {
    background: var(--color-bg);
    text-decoration: none;
}

.sidebar nav a.active {
    background: var(--color-primary-soft);
    color: var(--color-primary-dark);
}

.sidebar-section-title {
    font-size: 12px;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: 18px 12px 8px;
}

/* Feed central */
.feed-col {
    padding: 20px 16px;
    min-width: 0;
    border-right: 1px solid var(--color-border);
}

/* Columna derecha */
.right-col {
    padding: 20px 14px;
    position: sticky;
    top: 0;
    height: calc(100vh - 61px);
    overflow-y: auto;
}

/* Compose box */
.feed-compose {
    margin-bottom: 16px;
}

.feed-compose-input {
    flex: 1;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 999px;
    padding: 10px 16px;
    font-size: 15px;
    color: var(--color-text-muted);
    cursor: text;
    display: block;
    text-decoration: none;
}

.feed-compose-input:hover {
    background: #eaedf1;
    text-decoration: none;
}

.feed-action-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text-muted);
    text-decoration: none;
    flex: 1;
    justify-content: center;
}

.feed-action-btn:hover {
    background: var(--color-bg);
    text-decoration: none;
    color: var(--color-text);
}

/* Feed posts */
.feed-post {
    margin-bottom: 16px;
}

.feed-post-header {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 10px;
}

.feed-post-author {
    font-size: 14px;
    font-weight: 700;
    line-height: 1.3;
}

.feed-post-via {
    font-weight: 400;
    color: var(--color-text-muted);
    font-size: 13px;
}

.feed-post-time {
    font-size: 12px;
    color: var(--color-text-muted);
}

.feed-post-title {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 6px;
}

.feed-post-body {
    font-size: 14px;
    color: var(--color-text);
    line-height: 1.6;
    white-space: pre-wrap;
}

.feed-post-actions {
    display: flex;
    gap: 4px;
}

.feed-react-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    flex: 1;
    justify-content: center;
    padding: 8px;
    border: none;
    background: none;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text-muted);
    cursor: pointer;
}

.feed-react-btn:hover {
    background: var(--color-bg);
    color: var(--color-text);
}

/* Avatar sizes */
.avatar-lg {
    width: 40px;
    height: 40px;
    font-size: 15px;
    flex-shrink: 0;
}

.avatar-sm {
    width: 28px;
    height: 28px;
    font-size: 11px;
    flex-shrink: 0;
}

/* Right column widgets */
.right-widget {
    margin-bottom: 14px;
    padding: 14px 16px;
}

.right-widget-title {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 12px;
}

.right-contact-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.content {
    flex: 1;
    padding: 28px 32px;
}

/* ---------- Landing / Hero ---------- */
.hero-wrap {
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    gap: 48px;
    padding: 48px 6vw;
    align-items: center;
}

@media (max-width: 860px) {
    .hero-wrap {
        grid-template-columns: 1fr;
        padding: 32px 20px;
    }
}

.hero-title {
    font-size: 40px;
    font-weight: 700;
    line-height: 1.25;
    margin: 0 0 16px;
}

.hero-title .accent {
    color: var(--color-primary);
}

.hero-text {
    color: var(--color-text-muted);
    margin: 0 0 24px;
    max-width: 480px;
}

.hero-actions {
    display: flex;
    gap: 12px;
    margin-bottom: 28px;
    flex-wrap: wrap;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    max-width: 480px;
}

.feature-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 14px;
    font-size: 13px;
    color: var(--color-text-muted);
}

.feature-card strong {
    display: block;
    color: var(--color-text);
    font-size: 14px;
    margin-bottom: 4px;
}

/* ---------- Tarjetas de preview (collage) ---------- */
.collage {
    position: relative;
    height: 340px;
}

.collage-card {
    position: absolute;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 12px;
}

/* ---------- Formularios ---------- */
.auth-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 28px;
    max-width: 420px;
    width: 100%;
}

.auth-card h1 {
    font-size: 22px;
    margin: 0 0 6px;
}

.auth-card .subtitle {
    color: var(--color-text-muted);
    font-size: 14px;
    margin: 0 0 22px;
}

.field {
    margin-bottom: 16px;
}

.field label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 6px;
}

.field input,
.field select,
.field textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    background: var(--color-bg);
    color: var(--color-text);
}

.field input:focus,
.field select:focus,
.field textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    background: var(--color-surface);
}

/* ---------- Botones ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 18px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
}

.btn:hover {
    background: var(--color-bg);
}

.btn-primary {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #ffffff;
}

.btn-primary:hover {
    background: var(--color-primary-dark);
}

.btn-block {
    width: 100%;
}

/* ---------- Tipo de cuenta (toggle persona / empresa) ---------- */
.account-type {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 18px;
}

.account-type label {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 14px 12px;
    text-align: center;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    color: var(--color-text-muted);
}

.account-type input {
    display: none;
}

.account-type input:checked + span,
.account-type label:has(input:checked) {
    border-color: var(--color-primary);
    background: var(--color-primary-soft);
    color: var(--color-primary-dark);
}

/* ---------- Badges / mensajes ---------- */
.badge {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 999px;
}

.badge-success {
    background: var(--color-success-soft);
    color: var(--color-success);
}

.badge-warning {
    background: var(--color-warning-soft);
    color: var(--color-warning);
}

.alert {
    padding: 12px 14px;
    border-radius: var(--radius-md);
    font-size: 13px;
    margin-bottom: 16px;
}

.alert-error {
    background: #fcebeb;
    color: #a32d2d;
    border: 1px solid #f7c1c1;
}

.alert-success {
    background: var(--color-success-soft);
    color: var(--color-success);
    border: 1px solid #9fe1cb;
}

/* ---------- Footer ---------- */
.footer {
    border-top: 1px solid var(--color-border);
    padding: 16px 24px;
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    align-items: center;
    font-size: 13px;
    color: var(--color-text-muted);
}

.footer .lang-active {
    color: var(--color-text);
    font-weight: 600;
}

.footer-bottom {
    border-top: 1px solid var(--color-border);
    padding: 14px 24px;
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    font-size: 12px;
    color: var(--color-text-muted);
}

.footer-bottom .spacer {
    margin-left: auto;
}

/* ---------- Centrado para auth ---------- */
.center-page {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 48px 20px;
    min-height: calc(100vh - 61px);
}

/* ===================================================
   EXTENSIONES: Sidebar, Footer, Banner, Auth 2FA
   =================================================== */

/* ---------- Sidebar mejorado con íconos y badge ---------- */
.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 12px 16px;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 12px;
}

.sidebar-badge {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    padding: 2px 7px;
    border-radius: 999px;
    background: var(--color-primary-soft);
    color: var(--color-primary);
    margin-left: auto;
}

.sidebar nav a .nav-icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    opacity: 0.65;
}

.sidebar nav a.active .nav-icon,
.sidebar nav a:hover .nav-icon {
    opacity: 1;
}

.sidebar-divider {
    border: none;
    border-top: 1px solid var(--color-border);
    margin: 12px 0;
}

/* Sidebar colapsado en móvil */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        top: 61px;
        left: 0;
        height: calc(100vh - 61px);
        z-index: 200;
        box-shadow: 4px 0 16px rgba(0,0,0,0.08);
    }
    .sidebar.collapsed {
        margin-left: -260px;
        opacity: 0;
        pointer-events: none;
    }
    .sidebar-overlay {
        display: none;
        position: fixed;
        inset: 61px 0 0;
        background: rgba(0,0,0,0.25);
        z-index: 199;
    }
    .sidebar-overlay.active {
        display: block;
    }
}

/* ---------- Banner / Hero mejorado ---------- */
.banner {
    background: linear-gradient(135deg, #1a3f99 0%, var(--color-primary) 60%, #5b8ff7 100%);
    color: #fff;
    padding: 56px 6vw 48px;
    position: relative;
    overflow: hidden;
}

.banner::before {
    content: "";
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.banner-inner {
    position: relative;
    max-width: 700px;
}

.banner-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    background: rgba(255,255,255,0.18);
    border: 1px solid rgba(255,255,255,0.25);
    border-radius: 999px;
    padding: 4px 12px;
    margin-bottom: 18px;
    color: rgba(255,255,255,0.9);
}

.banner h1, .banner-title {
    font-size: clamp(28px, 4vw, 48px);
    font-weight: 800;
    line-height: 1.2;
    margin: 0 0 18px;
    color: #fff;
}

.banner-subtitle {
    font-size: 17px;
    color: rgba(255,255,255,0.8);
    max-width: 560px;
    margin: 0 0 28px;
}

.banner-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.btn-white {
    background: #fff;
    color: var(--color-primary-dark);
    border-color: #fff;
}
.btn-white:hover {
    background: #eaf1ff;
}

.btn-outline-white {
    background: transparent;
    color: #fff;
    border-color: rgba(255,255,255,0.5);
}
.btn-outline-white:hover {
    background: rgba(255,255,255,0.12);
    border-color: #fff;
}

/* Variante de banner compacto (dentro del dashboard) */
.banner-compact {
    background: linear-gradient(135deg, #1a3f99 0%, var(--color-primary) 100%);
    color: #fff;
    border-radius: var(--radius-lg);
    padding: 22px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 28px;
}

.banner-compact-text h2 {
    margin: 0 0 4px;
    font-size: 18px;
    color: #fff;
}

.banner-compact-text p {
    margin: 0;
    font-size: 13px;
    color: rgba(255,255,255,0.78);
}

/* ---------- Footer mejorado ---------- */
.footer-full {
    border-top: 1px solid var(--color-border);
    background: var(--color-surface);
}

.footer-top {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: 32px;
    padding: 40px 6vw 32px;
}

@media (max-width: 860px) {
    .footer-top {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 560px) {
    .footer-top {
        grid-template-columns: 1fr;
    }
}

.footer-brand p {
    color: var(--color-text-muted);
    font-size: 13px;
    margin: 8px 0 0;
    max-width: 260px;
}

.footer-col h4 {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-text-muted);
    margin: 0 0 12px;
}

.footer-col ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.footer-col ul li {
    margin-bottom: 8px;
}

.footer-col ul li a {
    font-size: 13px;
    color: var(--color-text);
}

.footer-col ul li a:hover {
    color: var(--color-primary);
}

.footer-langs {
    border-top: 1px solid var(--color-border);
    padding: 14px 6vw;
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    align-items: center;
    font-size: 13px;
    color: var(--color-text-muted);
}

.footer-langs .lang-active {
    color: var(--color-text);
    font-weight: 600;
}

.footer-legal {
    border-top: 1px solid var(--color-border);
    padding: 14px 6vw;
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: center;
    font-size: 12px;
    color: var(--color-text-muted);
}

.footer-legal .spacer { margin-left: auto; }

/* ---------- Recuperar contraseña ---------- */
.steps-indicator {
    display: flex;
    align-items: center;
    gap: 0;
    margin-bottom: 28px;
}

.step-dot {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 2px solid var(--color-border);
    background: var(--color-surface);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    color: var(--color-text-muted);
    flex-shrink: 0;
}

.step-dot.active {
    border-color: var(--color-primary);
    background: var(--color-primary);
    color: #fff;
}

.step-dot.done {
    border-color: var(--color-success);
    background: var(--color-success);
    color: #fff;
}

.step-line {
    flex: 1;
    height: 2px;
    background: var(--color-border);
}

.step-line.done {
    background: var(--color-success);
}

/* ---------- Autenticador 2FA ---------- */
.otp-inputs {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin: 20px 0;
}

.otp-inputs input {
    width: 48px;
    height: 56px;
    text-align: center;
    font-size: 22px;
    font-weight: 700;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg);
    color: var(--color-text);
    transition: border-color 0.15s;
}

.otp-inputs input:focus {
    outline: none;
    border-color: var(--color-primary);
    background: var(--color-surface);
}

.otp-hint {
    text-align: center;
    font-size: 13px;
    color: var(--color-text-muted);
    margin-top: -8px;
    margin-bottom: 18px;
}

.security-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--color-primary-soft);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
}

/* ---------- Dashboard mejorado ---------- */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 16px;
    margin-bottom: 28px;
}

.stat-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 20px;
}

.stat-card .stat-label {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    margin-bottom: 8px;
}

.stat-card .stat-value {
    font-size: 32px;
    font-weight: 800;
    color: var(--color-text);
    line-height: 1;
    margin-bottom: 6px;
}

.stat-card .stat-delta {
    font-size: 12px;
    color: var(--color-success);
    font-weight: 600;
}

.stat-card .stat-delta.down {
    color: #c0392b;
}

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 20px 22px;
    margin-bottom: 20px;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.card-header h3 {
    margin: 0;
    font-size: 16px;
}

.table-simple {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.table-simple th {
    text-align: left;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    padding: 0 12px 10px 0;
    border-bottom: 1px solid var(--color-border);
}

.table-simple td {
    padding: 10px 12px 10px 0;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text);
}

.table-simple tr:last-child td {
    border-bottom: none;
}

/* Quick actions */
.quick-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 12px;
    margin-bottom: 28px;
}

.quick-action {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 16px;
    text-align: center;
    cursor: pointer;
    text-decoration: none;
    color: var(--color-text);
    transition: border-color 0.15s, box-shadow 0.15s;
}

.quick-action:hover {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-soft);
    text-decoration: none;
}

.quick-action-icon {
    font-size: 24px;
    margin-bottom: 8px;
}

.quick-action span {
    display: block;
    font-size: 13px;
    font-weight: 600;
}

/* Notificaciones topbar */
.topbar-notif {
    position: relative;
}

.topbar-notif-dot {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #e74c3c;
    border: 2px solid var(--color-surface);
}

/* Avatar usuario */
.avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--color-primary-soft);
    color: var(--color-primary);
    font-weight: 700;
    font-size: 13px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* Progress bar */
.progress-bar {
    height: 6px;
    border-radius: 999px;
    background: var(--color-border);
    overflow: hidden;
    margin-top: 8px;
}

.progress-bar-fill {
    height: 100%;
    background: var(--color-primary);
    border-radius: 999px;
    transition: width 0.4s ease;
}

/* Responsive layout */
@media (max-width: 1100px) {
    .layout {
        grid-template-columns: 240px 1fr;
    }
    .right-col {
        display: none;
    }
}

@media (max-width: 768px) {
    .layout {
        grid-template-columns: 1fr;
    }
    .sidebar {
        display: none;
    }
    .feed-col {
        padding: 12px 8px;
    }
    .stat-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}