@charset "utf-8";
/* ============================================================
   TUNEUPBARN — Acerca de
   /cssstyle/tuneupbarn.css
   Estética: editorial pesada · oscura · directa · sin ornamento
   ============================================================ */

:root {
    --tub-red: #CC0000;
    --tub-red-dark: #990000;
    --tub-red-glow: rgba(204, 0, 0, 0.15);
    --tub-white: #F2F0EC;
    --tub-silver: #B0BAC4;
    --tub-dim: #606878;
    --tub-surface: rgba(12, 11, 10, 0.98);
    --tub-surface-2: rgba(20, 19, 17, 0.97);
    --tub-surface-3: rgba(28, 27, 24, 0.96);
    --tub-border: rgba(176, 186, 196, 0.08);
    --tub-border-2: rgba(176, 186, 196, 0.15);
    --tub-text: #C8D0D8;
    --tub-text-muted: #6A7480;
    --tub-radius: 8px;
    --tub-gap: 24px;
    --tub-mb: 80px;
    --tub-max: 1120px;
}

body {
    background: #0c0b0a;
}

/* ============================================================
   LAYOUT
   ============================================================ */
.tub-main {
    width: 100%;
    min-height: 100vh;
    padding-top: 90px;
    font-family: 'Nunito', 'Segoe UI', sans-serif;
    color: var(--tub-text);
}

.tub-container {
    width: 90%;
    max-width: var(--tub-max);
    margin-inline: auto;
    padding-inline: 16px;
    box-sizing: border-box;
}

.tub-container--narrow {
    max-width: 760px;
}

/* ============================================================
   SECCIONES
   ============================================================ */
.tub-section {
    margin-bottom: var(--tub-mb);
    animation: tubUp 0.55s ease both;
}

.tub-section--alt {
    background: var(--tub-surface-2);
    border-top: 1px solid var(--tub-border);
    border-bottom: 1px solid var(--tub-border);
    padding-block: 80px;
    margin-bottom: var(--tub-mb);
}

.tub-section--statement {
    margin-bottom: 80px;
}

.tub-section:nth-child(2) {
    animation-delay: 0.04s;
}

.tub-section:nth-child(3) {
    animation-delay: 0.08s;
}

.tub-section:nth-child(4) {
    animation-delay: 0.12s;
}

.tub-section:nth-child(5) {
    animation-delay: 0.16s;
}

@keyframes tubUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Label numerado */
.tub-section-label {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--tub-dim);
    margin-bottom: 16px;
}

.tub-section-label span {
    color: var(--tub-red);
    font-size: 0.9rem;
    font-weight: 900;
}

.tub-section-label::after {
    content: '';
    flex: 0 0 36px;
    height: 1px;
    background: var(--tub-red);
    opacity: 0.45;
}

/* Título de sección */
.tub-section__title {
    font-size: clamp(1.8rem, 3.5vw, 2.8rem);
    font-weight: 900;
    color: var(--tub-white);
    line-height: 1.1;
    margin-bottom: 40px;
    letter-spacing: -0.02em;
}

/* ============================================================
   HERO
   ============================================================ */
.tub-hero {
    position: relative;
    padding: 90px 0 100px;
    overflow: hidden;
}

/* Marca de agua TUB — elemento gráfico de fondo */
.tub-hero__mark {
    position: absolute;
    right: -2%;
    top: 50%;
    transform: translateY(-50%);
    font-size: clamp(12rem, 25vw, 22rem);
    font-weight: 900;
    color: transparent;
    -webkit-text-stroke: 1px rgba(176, 186, 196, 0.05);
    letter-spacing: -0.05em;
    line-height: 1;
    pointer-events: none;
    user-select: none;
    z-index: 0;
}

.tub-hero>.tub-container {
    position: relative;
    z-index: 1;
}

.tub-eyebrow {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--tub-red);
    margin-bottom: 22px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.tub-eyebrow::before {
    content: '';
    display: inline-block;
    width: 28px;
    height: 2px;
    background: var(--tub-red);
}

.tub-hero__title {
    font-size: clamp(2.8rem, 8vw, 6rem);
    font-weight: 900;
    line-height: 1.0;
    letter-spacing: -0.03em;
    color: var(--tub-white);
    margin-bottom: 28px;
}

.tub-hero__sub {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--tub-text);
    max-width: 580px;
    line-height: 1.8;
    font-weight: 300;
    margin-bottom: 40px;
}

.tub-hero__cta {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

/* ============================================================
   GRID DE SERVICIOS — 3 × 2 con hover sutil
   ============================================================ */
.tub-services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--tub-gap);
}

.tub-service-card {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 28px 24px;
    background: var(--tub-surface-2);
    border: 1px solid var(--tub-border);
    border-radius: var(--tub-radius);
    text-decoration: none;
    color: inherit;
    transition: border-color 0.25s ease, transform 0.25s ease, background 0.25s ease;
    position: relative;
}

.tub-service-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--tub-red);
    transform: scaleX(0);
    transition: transform 0.3s ease;
    transform-origin: left;
}

.tub-service-card:hover {
    border-color: var(--tub-border-2);
    transform: translateY(-5px);
    background: var(--tub-surface-3);
}

.tub-service-card:hover::after {
    transform: scaleX(1);
}

.tub-service-card>i {
    font-size: 1.6rem;
    color: var(--tub-red);
    line-height: 1;
}

.tub-service-card h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--tub-white);
    margin: 0;
}

.tub-service-card p {
    font-size: 0.85rem;
    line-height: 1.7;
    color: var(--tub-text-muted);
    margin: 0;
    flex: 1;
}

.tub-service-card__arrow {
    font-size: 1.1rem;
    color: var(--tub-red);
    margin-top: auto;
    transition: transform 0.2s ease;
}

.tub-service-card:hover .tub-service-card__arrow {
    transform: translateX(5px);
}

/* ============================================================
   QUIÉNES SOMOS — layout 60/40
   ============================================================ */
.tub-about-layout {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 60px;
    align-items: start;
}

.tub-about-text p {
    font-size: 1rem;
    line-height: 1.85;
    color: var(--tub-text);
    margin-bottom: 18px;
}

.tub-about-text p:last-of-type {
    margin-bottom: 32px;
}

.tub-about-cta {
    margin-top: 0;
}

/* Panel de especificaciones */
.tub-specs-panel {
    min-width: 280px;
    padding: 28px 24px;
    background: var(--tub-surface-3);
    border: 1px solid var(--tub-border);
    border-radius: var(--tub-radius);
    border-top: 3px solid var(--tub-red);
    flex-shrink: 0;
}

.tub-specs-panel h3 {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--tub-dim);
    margin-bottom: 20px;
}

.tub-specs-list {
    margin: 0;
    padding: 0;
}

.tub-spec-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 12px;
    padding: 9px 0;
    border-bottom: 1px solid var(--tub-border);
}

.tub-spec-row:last-child {
    border-bottom: none;
}

.tub-spec-row dt {
    font-size: 0.78rem;
    color: var(--tub-text-muted);
    font-weight: 400;
    white-space: nowrap;
}

.tub-spec-row dd {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--tub-silver);
    text-align: right;
    margin: 0;
}

/* ============================================================
   POR QUÉ ELEGIRNOS — 4 razones en grid
   ============================================================ */
.tub-razones-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--tub-gap);
}

.tub-razon {
    padding: 28px 24px;
    background: var(--tub-surface-2);
    border: 1px solid var(--tub-border);
    border-radius: var(--tub-radius);
    transition: border-color 0.25s ease;
}

.tub-razon:hover {
    border-color: var(--tub-border-2);
}

.tub-razon__num {
    display: block;
    font-size: 2rem;
    font-weight: 900;
    color: transparent;
    -webkit-text-stroke: 1px rgba(204, 0, 0, 0.35);
    line-height: 1;
    margin-bottom: 14px;
    letter-spacing: -0.03em;
}

.tub-razon h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--tub-white);
    margin-bottom: 10px;
}

.tub-razon p {
    font-size: 0.88rem;
    line-height: 1.75;
    color: var(--tub-text-muted);
    margin: 0;
}

/* ============================================================
   DECLARACIÓN FINAL
   ============================================================ */
.tub-statement {
    margin: 0 0 40px;
    padding: 0;
    border: none;
}

.tub-statement p {
    font-size: clamp(1.2rem, 2.5vw, 1.7rem);
    font-weight: 300;
    font-style: italic;
    color: var(--tub-white);
    line-height: 1.65;
    margin-bottom: 20px;
    padding-left: 28px;
    border-left: 3px solid var(--tub-red);
}

.tub-statement footer cite {
    font-size: 0.8rem;
    font-style: normal;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--tub-dim);
    padding-left: 28px;
}

.tub-statement-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
    .tub-services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .tub-about-layout {
        grid-template-columns: 1fr;
        gap: 36px;
    }

    .tub-specs-panel {
        min-width: unset;
        width: 100%;
    }
}

@media (max-width: 768px) {
    .tub-main {
        padding-top: 80px;
    }

    .tub-hero {
        padding: 60px 0 70px;
    }

    .tub-hero__mark {
        display: none;
    }

    .tub-section--alt {
        padding-block: 54px;
    }

    .tub-services-grid {
        grid-template-columns: 1fr;
    }

    .tub-razones-grid {
        grid-template-columns: 1fr;
    }

    .tub-hero__cta,
    .tub-statement-cta {
        flex-direction: column;
    }

    .tub-hero__cta .gr-btn,
    .tub-statement-cta .gr-btn {
        width: 100%;
        max-width: 320px;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .tub-service-card {
        padding: 22px 18px;
    }

    .tub-razon {
        padding: 22px 18px;
    }

    .tub-statement p {
        font-size: 1.1rem;
    }
}