/* Colores base (ajusta a tu paleta) */
:root {
    --nt-primary: #2563eb;
    --nt-primary-soft: rgba(37, 99, 235, 0.08);
    --nt-primary-strong: #1d4ed8;
    --nt-accent: #10b981;
    --nt-dark: #0f172a;
    --nt-muted: #6b7280;
    --nt-border: #e5e7eb;
    --nt-bg-soft: #f9fafb;
    --nt-radius-lg: 1.25rem;
    --nt-radius-md: 0.75rem;
}

/* Layout general */
.nt-body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background-color: #ffffff;
    color: #0f172a;
}

.nt-main {
    min-height: calc(100vh - 140px);
}

/* Header (sticky) */
.nt-header {
    z-index: 1030; /* por encima del contenido */
}

.nt-logo {
    height: 32px;
    width: auto;
}

.nt-logo-text {
    font-size: 1.1rem;
    letter-spacing: 0.02em;
}

.nt-nav-link {
    font-weight: 500;
    color: #4b5563;
}

    .nt-nav-link:hover,
    .nt-nav-link:focus {
        color: var(--nt-primary);
    }

/* Hero */
.nt-hero-section {
    background: radial-gradient(circle at top left, rgba(37, 99, 235, 0.06), transparent 55%), radial-gradient(circle at bottom right, rgba(16, 185, 129, 0.06), transparent 55%);
}

.nt-hero-title {
    font-size: clamp(2.25rem, 2.8vw, 2.9rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--nt-dark);
}

.nt-hero-subtitle {
    font-size: 1rem;
    color: var(--nt-muted);
}

.nt-hero-list {
    padding-left: 1.2rem;
    color: #4b5563;
    font-size: 0.98rem;
}

    .nt-hero-list li + li {
        margin-top: 0.25rem;
    }

/* Badge construcción */
.nt-badge-construccion {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    background-color: var(--nt-primary-soft);
    color: var(--nt-primary-strong);
    border: 1px solid rgba(37, 99, 235, 0.2);
}

.nt-badge-dot {
    width: 8px;
    height: 8px;
    border-radius: 999px;
    background: radial-gradient(circle at center, #22c55e 0%, #16a34a 60%, #15803d 100%);
}

/* Botones */
.nt-btn-primary {
    background: linear-gradient(135deg, var(--nt-primary), var(--nt-primary-strong));
    border: none;
    color: #ffffff;
    padding: 0.6rem 1.4rem;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.95rem;
}

    .nt-btn-primary:hover,
    .nt-btn-primary:focus {
        background: linear-gradient(135deg, #1d4ed8, #1e40af);
        color: #ffffff;
    }

.nt-btn-ghost {
    border-radius: 999px;
    padding: 0.6rem 1.4rem;
    border: 1px solid var(--nt-border);
    color: #374151;
    font-weight: 500;
    background-color: #ffffff;
}

    .nt-btn-ghost:hover,
    .nt-btn-ghost:focus {
        border-color: var(--nt-primary);
        color: var(--nt-primary-strong);
    }

/* Mockup hero */
.nt-hero-mockup {
    border-radius: var(--nt-radius-lg);
    background: #ffffff;
    overflow: hidden;
    border: 1px solid var(--nt-border);
}

.nt-mockup-header {
    padding: 0.75rem 1rem;
    background: linear-gradient(90deg, #0f172a, #1f2937);
    color: #e5e7eb;
    font-size: 0.85rem;
}

.nt-mockup-dot {
    width: 8px;
    height: 8px;
    border-radius: 999px;
    background-color: rgba(148, 163, 184, 0.9);
}

    .nt-mockup-dot + .nt-mockup-dot {
        margin-left: 4px;
    }

.nt-mockup-title {
    opacity: 0.9;
}

.nt-mockup-body {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.7fr);
    min-height: 260px;
}

.nt-mockup-sidebar {
    border-right: 1px solid var(--nt-border);
    padding: 1rem;
    background-color: #f9fafb;
}

.nt-mockup-sidebar-title {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--nt-muted);
    margin-bottom: 0.75rem;
}

.nt-mockup-sidebar-list {
    list-style: none;
    padding-left: 0;
    margin-bottom: 0;
    font-size: 0.9rem;
}

    .nt-mockup-sidebar-list li {
        padding: 0.35rem 0.55rem;
        border-radius: 0.5rem;
        color: #4b5563;
    }

        .nt-mockup-sidebar-list li.active {
            background-color: #e0ebff;
            color: var(--nt-primary-strong);
            font-weight: 600;
        }

.nt-mockup-main {
    padding: 1rem 1.2rem 0.9rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.nt-mockup-main-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
}

.nt-mockup-tag {
    display: inline-flex;
    align-items: center;
    padding: 0.1rem 0.5rem;
    font-size: 0.75rem;
    border-radius: 999px;
    background-color: rgba(59, 130, 246, 0.08);
    color: var(--nt-primary-strong);
    margin-bottom: 0.25rem;
}

.nt-mockup-conv-title {
    font-size: 1rem;
    margin: 0;
    color: #111827;
}

.nt-mockup-metrics {
    display: flex;
    gap: 0.75rem;
    font-size: 0.78rem;
}

.nt-metric-item {
    padding: 0.35rem 0.6rem;
    border-radius: 0.5rem;
    background-color: #f3f4f6;
}

.nt-metric-label {
    display: block;
    color: #6b7280;
}

.nt-metric-value {
    font-weight: 600;
    color: #111827;
}

/* Chat */
.nt-mockup-chat {
    flex: 1;
    padding: 0.75rem 0.2rem 0.75rem 0;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    font-size: 0.85rem;
}

.nt-msg {
    max-width: 85%;
    padding: 0.45rem 0.75rem;
    border-radius: 0.75rem;
    position: relative;
}

    .nt-msg p {
        margin: 0.1rem 0 0 0;
    }

.nt-msg-label {
    display: block;
    font-size: 0.7rem;
    opacity: 0.7;
}

.nt-msg-user {
    margin-right: auto;
    background-color: #e5e7eb;
}

.nt-msg-ia {
    margin-left: auto;
    background-color: #dbeafe;
}

.nt-msg-agent {
    margin-left: auto;
    background-color: #dcfce7;
}

.nt-mockup-footer {
    border-top: 1px solid var(--nt-border);
    padding-top: 0.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.75rem;
    color: var(--nt-muted);
}

.nt-mockup-input-placeholder {
    flex: 1;
    padding: 0.4rem 0.75rem;
    border-radius: 999px;
    border: 1px dashed var(--nt-border);
    background-color: #f9fafb;
}

.nt-mockup-badge-right {
    font-size: 0.7rem;
    padding: 0.3rem 0.6rem;
    border-radius: 999px;
    background-color: #f3f4f6;
}

/* Secciones */
.nt-section {
    background-color: #ffffff;
}

    .nt-section.bg-light {
        background-color: var(--nt-bg-soft) !important;
    }

.nt-section-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--nt-dark);
    margin-bottom: 0.25rem;
}

.nt-section-subtitle {
    font-size: 0.98rem;
    color: var(--nt-muted);
}

/* Cards */
.nt-feature-card {
    background-color: #ffffff;
    border-radius: var(--nt-radius-md);
    border: 1px solid var(--nt-border);
    padding: 1.1rem 1.1rem 1rem;
}

.nt-feature-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
    color: var(--nt-dark);
}

.nt-feature-text {
    font-size: 0.9rem;
    color: #4b5563;
    margin-bottom: 0;
}

.nt-status-list {
    padding-left: 1.1rem;
    font-size: 0.95rem;
    color: #4b5563;
}

    .nt-status-list li + li {
        margin-top: 0.25rem;
    }

.nt-status-card {
    background-color: #ffffff;
    border-radius: var(--nt-radius-md);
    border: 1px solid var(--nt-border);
    padding: 1.2rem;
}

.nt-status-title {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 0.6rem;
}

/* Contacto */
.nt-contact-list {
    padding-left: 1.1rem;
    font-size: 0.95rem;
    color: #4b5563;
}

    .nt-contact-list li + li {
        margin-top: 0.25rem;
    }

.nt-contact-card {
    background-color: #ffffff;
    border-radius: var(--nt-radius-md);
    border: 1px solid var(--nt-border);
    padding: 1.2rem;
}

.nt-contact-title {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

/* Footer */
.nt-footer {
    background-color: #ffffff;
}

/* Responsivo */
@media (max-width: 991.98px) {
    .nt-mockup-body {
        grid-template-columns: minmax(0, 1fr);
    }

    .nt-mockup-sidebar {
        border-right: none;
        border-bottom: 1px solid var(--nt-border);
    }

    .nt-hero-section .container {
        padding-top: 2.5rem;
    }
}