/* ══════════════════════════════════════════════════════
   TURBOTEK — STYLESHEET
   Motor 3D como loader · contenido turbotekdiesel.com
   ══════════════════════════════════════════════════════ */

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --red: #b3402a;
    --red-dark: #8a2f1e;
    --red-light: #c85a3e;
    --cream: #faf6f0;
    --cream2: #f1e9dd;
    --white: #ffffff;
    --ink: #241f1a;
    --charcoal: #211a15;
    --charcoal2: #2b2320;
    --line: rgba(36, 31, 26, 0.12);
    --steel: #8a7e72;
    --light: #5c5349;
    --wa: #25d366;
    --font-head: 'Barlow Condensed', 'Arial Narrow', sans-serif;
    --font-body: 'Barlow', system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', monospace;
    --nav-h: 72px;
}

html {
    scroll-behavior: smooth;
}

body {
    background: var(--cream);
    color: var(--ink);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    overflow-x: hidden;
}

body.is-loading {
    overflow: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

img {
    max-width: 100%;
    display: block;
}

button {
    font-family: inherit;
    cursor: pointer;
}

.mono {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--steel);
}

.red {
    color: var(--red);
}

.skip-link {
    position: absolute;
    top: -100px;
    left: 16px;
    background: var(--red);
    color: var(--white);
    font-family: var(--font-head);
    font-weight: 700;
    letter-spacing: 0.1em;
    padding: 12px 24px;
    z-index: 9999;
    transition: top 0.2s;
}

.skip-link:focus {
    top: 12px;
}

.container {
    width: min(1280px, 100% - 48px);
    margin-inline: auto;
}

/* ── Buttons ───────────────────────────────────── */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--red);
    color: var(--white);
    font-family: var(--font-head);
    font-weight: 700;
    font-size: 1.05rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 14px 28px;
    border: 0;
    border-radius: 4px;
    transition: transform 0.2s, background 0.2s, box-shadow 0.2s;
    box-shadow: 0 8px 20px -10px rgba(179, 64, 42, 0.55);
}

.btn-primary:hover {
    background: var(--red-light);
    transform: translateY(-2px);
    box-shadow: 0 12px 24px -10px rgba(179, 64, 42, 0.6);
}

.btn-primary.full-width {
    width: 100%;
}

.btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-head);
    font-weight: 700;
    font-size: 1.05rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 13px 28px;
    border: 1.5px solid rgba(36, 31, 26, 0.28);
    border-radius: 4px;
    color: var(--ink);
    transition: border-color 0.2s, background 0.2s;
}

.btn-ghost:hover {
    border-color: var(--ink);
    background: rgba(36, 31, 26, 0.05);
}

/* ── Section headers ───────────────────────────── */
.section-header {
    max-width: 720px;
    margin-bottom: 56px;
}

.section-tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--red);
    margin-bottom: 14px;
}

.section-tag::before {
    content: '';
    display: inline-block;
    width: 22px;
    height: 2px;
    background: var(--red);
    vertical-align: middle;
    margin-right: 10px;
}

.section-title {
    font-family: var(--font-head);
    font-weight: 900;
    font-size: clamp(2.4rem, 5.5vw, 4.2rem);
    line-height: 0.95;
    text-transform: uppercase;
    letter-spacing: 0.01em;
    color: var(--ink);
}

.section-sub {
    margin-top: 18px;
    color: var(--light);
    max-width: 560px;
    font-size: 1.05rem;
}

/* ══════════════════════════════════════════════════════
   LOADER — se mantiene oscuro por ser una pantalla breve
   ══════════════════════════════════════════════════════ */
.loader-bg {
    position: fixed;
    inset: 0;
    z-index: 999;
    background: radial-gradient(ellipse at 50% 40%, #2b2019 0%, #17110c 65%);
    overflow: hidden;
}

.loader {
    position: fixed;
    inset: 0;
    z-index: 1001;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    overflow: hidden;
    pointer-events: none;
}

.loader-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: radial-gradient(circle at center, #000 20%, transparent 75%);
    -webkit-mask-image: radial-gradient(circle at center, #000 20%, transparent 75%);
}

.loader-ui {
    position: relative;
    z-index: 1001;
    width: min(560px, 100% - 48px);
    padding-bottom: clamp(32px, 7vh, 72px);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 22px;
}

.loader-logo {
    width: clamp(150px, 22vw, 230px);
    height: auto;
    filter: invert(1) hue-rotate(180deg) drop-shadow(0 0 20px rgba(0, 0, 0, 0.75));
}

.loader-meter {
    width: 100%;
}

.loader-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 10px;
}

.loader-msg {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.3em;
    color: #b9a894;
}

.loader-pct {
    font-family: var(--font-head);
    font-weight: 900;
    font-size: 2.4rem;
    line-height: 1;
    color: var(--white);
    font-variant-numeric: tabular-nums;
}

.loader-bar {
    height: 4px;
    width: 100%;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    overflow: hidden;
}

.loader-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--red-dark), var(--red), var(--red-light));
    box-shadow: 0 0 12px rgba(179, 64, 42, 0.6);
    transition: width 0.15s linear;
}

.loader-part {
    margin-top: 12px;
    font-family: var(--font-head);
    font-size: 0.85rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: #d8c9b8;
    text-align: center;
    min-height: 1.4em;
}

.loader-skip {
    position: absolute;
    top: 24px;
    right: 24px;
    z-index: 1001;
    pointer-events: auto;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: #d8c9b8;
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    padding: 10px 16px;
    border-radius: 999px;
    transition: border-color 0.2s, color 0.2s;
}

.loader-skip:hover {
    border-color: var(--white);
    color: var(--white);
}

/* Escenario 3D: arriba del loader mientras carga, detrás del hero después */
.engine-stage {
    position: fixed;
    inset: 0;
    z-index: 1000;
    pointer-events: none;
}

.engine-stage canvas {
    width: 100%;
    height: 100%;
    display: block;
}

body.loaded .engine-stage {
    z-index: 1;
}

body.loaded .loader {
    pointer-events: none;
}

.webgl-fallback {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-head);
    letter-spacing: 0.1em;
    color: var(--steel);
    text-align: center;
    padding: 32px;
}

/* ══════════════════════════════════════════════════════
   NAV
   ══════════════════════════════════════════════════════ */
.nav-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    height: var(--nav-h);
    background: rgba(250, 246, 240, 0.78);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
    transition: border-color 0.3s, background 0.3s;
}

.nav-bar.scrolled {
    background: rgba(250, 246, 240, 0.94);
    border-bottom-color: rgba(179, 64, 42, 0.25);
}

.nav-inner {
    width: min(1320px, 100% - 40px);
    margin-inline: auto;
    height: 100%;
    display: flex;
    align-items: center;
    gap: 24px;
}

.logo img {
    height: 44px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: 4px;
    margin-inline: auto;
}

.nav-links a {
    font-family: var(--font-head);
    font-weight: 600;
    font-size: 1rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 8px 12px;
    border-radius: 4px;
    color: var(--light);
    transition: color 0.2s, background 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--ink);
    background: rgba(36, 31, 26, 0.05);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-phone {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    letter-spacing: 0.08em;
    color: var(--light);
    padding: 9px 14px;
    border: 1px solid var(--line);
    border-radius: 999px;
    transition: border-color 0.2s, color 0.2s;
}

.nav-phone:hover {
    border-color: var(--ink);
    color: var(--ink);
}

.nav-ai {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(36, 31, 26, 0.04);
    border: 1px solid var(--line);
    color: var(--ink);
    font-family: var(--font-head);
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.06em;
    padding: 8px 14px;
    border-radius: 999px;
    transition: border-color 0.2s, background 0.2s;
}

.nav-ai:hover {
    border-color: var(--red);
    background: rgba(179, 64, 42, 0.08);
}

.nav-ai-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--red);
    box-shadow: 0 0 0 0 rgba(179, 64, 42, 0.5);
    animation: pulse 2s infinite;
}

.nav-cta {
    padding: 10px 20px;
    font-size: 0.95rem;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: 0;
    padding: 8px;
    margin-left: auto;
}

.hamburger span {
    width: 26px;
    height: 2px;
    background: var(--ink);
    transition: transform 0.25s, opacity 0.25s;
}

.mobile-menu {
    display: none;
    flex-direction: column;
    gap: 6px;
    padding: 16px 24px 24px;
    background: var(--cream);
    position: relative;
    z-index: 1;
    border-bottom: 1px solid var(--line);
}

.mobile-menu.open {
    display: flex;
}

.mobile-menu a {
    font-family: var(--font-head);
    font-weight: 600;
    font-size: 1.25rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 10px 0;
    border-bottom: 1px solid var(--line);
}

.mobile-menu .mobile-cta {
    color: var(--red);
}

.mobile-menu .mobile-ai {
    background: none;
    border: 0;
    border-bottom: 1px solid var(--line);
    color: var(--ink);
    text-align: left;
    font-family: var(--font-head);
    font-weight: 600;
    font-size: 1.25rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 10px 0;
}

.ai-float {
    display: none;
    position: fixed;
    right: 22px;
    bottom: 92px;
    z-index: 90;
    align-items: center;
    gap: 8px;
    background: var(--white);
    border: 1px solid rgba(179, 64, 42, 0.4);
    color: var(--ink);
    font-family: var(--font-head);
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.06em;
    padding: 10px 16px;
    border-radius: 999px;
    box-shadow: 0 14px 30px -12px rgba(36, 31, 26, 0.28);
}

.mobile-menu .btn-primary {
    margin-top: 10px;
    border-bottom: 0;
}

/* ══════════════════════════════════════════════════════
   HERO
   ══════════════════════════════════════════════════════ */
.hero {
    position: relative;
    min-height: 100vh;
    padding-top: calc(var(--nav-h) + 56px);
    padding-bottom: 48px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 56px;
    z-index: 2;
}

.hero-glow {
    position: absolute;
    inset: 0;
    z-index: -1;
    background:
        radial-gradient(ellipse at 72% 45%, rgba(179, 64, 42, 0.08), transparent 55%),
        radial-gradient(ellipse at 10% 90%, rgba(179, 64, 42, 0.05), transparent 50%);
    pointer-events: none;
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: center;
    gap: 40px;
}

.hero-content>* {
    opacity: 0;
    transform: translateY(24px);
}

body.loaded .hero-content>* {
    opacity: 1;
    transform: none;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.22em;
    color: var(--light);
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 8px 14px;
    margin-bottom: 26px;
    background: rgba(36, 31, 26, 0.03);
}

.pulse {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--red);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(179, 64, 42, 0.5);
    }

    70% {
        box-shadow: 0 0 0 10px rgba(179, 64, 42, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(179, 64, 42, 0);
    }
}

.hero-title {
    font-family: var(--font-head);
    font-weight: 900;
    font-size: clamp(3.4rem, 8.5vw, 7.2rem);
    line-height: 0.9;
    text-transform: uppercase;
    letter-spacing: 0.005em;
    color: var(--ink);
}

.red-stroke {
    color: var(--red);
}

.hero-sub {
    margin-top: 26px;
    max-width: 520px;
    font-size: 1.15rem;
    color: var(--light);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 34px;
}

.hero-proof {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 18px;
    margin-top: 36px;
}

.avatars {
    display: flex;
}

.avatars span {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 2px solid var(--cream);
    margin-left: -10px;
    display: grid;
    place-items: center;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--ink);
}

.avatars span:first-child {
    margin-left: 0;
}

.proof-text {
    display: flex;
    flex-direction: column;
    line-height: 1.3;
}

.proof-text span {
    font-size: 0.8rem;
    color: var(--steel);
}

.proof-text strong {
    font-size: 0.95rem;
}

.stars {
    color: #b8860b;
    letter-spacing: 0.05em;
    font-size: 0.9rem;
}

.stars strong {
    color: var(--ink);
    margin-left: 6px;
}

.proof-divider {
    width: 1px;
    height: 36px;
    background: var(--line);
}

.hero-visual {
    position: relative;
    min-height: 460px;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding-bottom: 0;
}

.hero-fallback-img {
    display: none;
    position: absolute;
    inset: 0;
    margin: auto;
    width: min(100%, 460px);
    height: auto;
    border-radius: 16px;
    border: 1px solid var(--line);
    box-shadow: 0 30px 60px -24px rgba(40, 30, 20, 0.25);
}

body.no-webgl .hero-fallback-img {
    display: block;
}

body.no-webgl .hero-visual-caption {
    display: none;
}

.hero-visual-caption {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    transform: translateY(36px);
    opacity: 0;
    transition: opacity 0.8s ease 0.6s;
}

body.loaded .hero-visual-caption {
    opacity: 1;
}

.hero-visual-caption .hint {
    font-size: 0.8rem;
    color: var(--steel);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.7s ease 0.5s, transform 0.7s ease 0.5s;
}

body.loaded .hero-stats {
    opacity: 1;
    transform: none;
}

.stat {
    border: 1px solid var(--line);
    background: var(--white);
    padding: 18px 20px;
    border-radius: 6px;
    display: flex;
    flex-direction: column;
    transition: border-color 0.2s;
}

.stat:hover {
    border-color: rgba(179, 64, 42, 0.4);
}

.stat-num {
    font-family: var(--font-head);
    font-weight: 900;
    font-size: 2.2rem;
    line-height: 1;
    color: var(--ink);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--steel);
    margin-top: 6px;
}

/* ══════════════════════════════════════════════════════
   MARQUEE
   ══════════════════════════════════════════════════════ */
.urgency-strip {
    position: relative;
    z-index: 2;
    background: var(--red);
    color: var(--white);
    overflow: hidden;
    padding: 14px 0;
}

.strip-track {
    display: flex;
    gap: 40px;
    width: max-content;
    animation: marquee 28s linear infinite;
    font-family: var(--font-head);
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: 0.2em;
    white-space: nowrap;
}

.strip-track .dot {
    font-size: 0.6rem;
    opacity: 0.7;
    align-self: center;
}

@keyframes marquee {
    from {
        transform: translateX(0);
    }

    to {
        transform: translateX(-50%);
    }
}

/* ══════════════════════════════════════════════════════
   CATÁLOGO
   ══════════════════════════════════════════════════════ */
.parts-section,
.process-section,
.diag-section,
.testimonials-section,
.brands-section,
.contact-section,
.footer {
    position: relative;
    z-index: 2;
}

.parts-section {
    padding: 120px 0;
    background: var(--cream2);
}

.catalog-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

.catalog-card {
    display: grid;
    grid-template-columns: 40% 1fr;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 10px;
    overflow: hidden;
    transition: border-color 0.25s, transform 0.25s;
}

.catalog-card:hover {
    border-color: rgba(179, 64, 42, 0.45);
    transform: translateY(-4px);
}

.catalog-img {
    position: relative;
    overflow: hidden;
}

.catalog-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.catalog-card:hover .catalog-img img {
    transform: scale(1.06);
}

.catalog-body {
    padding: 28px;
    display: flex;
    flex-direction: column;
}

.catalog-num {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.25em;
    color: var(--red);
}

.catalog-body h3 {
    font-family: var(--font-head);
    font-weight: 700;
    font-size: 1.9rem;
    text-transform: uppercase;
    line-height: 1;
    margin-top: 8px;
    color: var(--ink);
}

.catalog-body p {
    color: var(--light);
    font-size: 0.95rem;
    margin-top: 12px;
}

.catalog-list {
    list-style: none;
    margin: 18px 0 22px;
    display: grid;
    gap: 6px;
}

.catalog-list li {
    font-size: 0.9rem;
    color: var(--light);
    padding-left: 18px;
    position: relative;
}

.catalog-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.6em;
    width: 8px;
    height: 2px;
    background: var(--red);
}

.catalog-body .btn-primary {
    margin-top: auto;
}

/* ══════════════════════════════════════════════════════
   MOTORES
   ══════════════════════════════════════════════════════ */
.brands-section {
    padding: 120px 0;
    background: var(--cream);
    overflow: hidden;
}

.brands-bg-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-family: var(--font-head);
    font-weight: 900;
    font-size: clamp(8rem, 28vw, 26rem);
    color: transparent;
    -webkit-text-stroke: 1px rgba(36, 31, 26, 0.06);
    letter-spacing: 0.05em;
    pointer-events: none;
    user-select: none;
    white-space: nowrap;
}

.engines-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
    position: relative;
}

.engine-card {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 26px 22px;
    transition: border-color 0.25s, transform 0.25s;
}

.engine-card:hover {
    border-color: rgba(179, 64, 42, 0.45);
    transform: translateY(-4px);
}

.engine-card h3 {
    font-family: var(--font-head);
    font-weight: 900;
    font-size: 1.7rem;
    letter-spacing: 0.04em;
    color: var(--ink);
}

.engine-models {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 14px;
}

.engine-models span {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    padding: 5px 10px;
    border: 1px solid var(--line);
    border-radius: 999px;
    color: var(--light);
}

.brands-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 28px;
    position: relative;
}

.brand-pill {
    font-family: var(--font-head);
    font-weight: 700;
    font-size: 1.05rem;
    letter-spacing: 0.14em;
    padding: 10px 22px;
    border: 1px solid var(--line);
    border-radius: 999px;
    color: var(--light);
    background: var(--white);
    transition: border-color 0.2s, color 0.2s;
}

.brand-pill:hover {
    border-color: var(--red);
    color: var(--ink);
}

.brands-note {
    margin-top: 28px;
    color: var(--steel);
    position: relative;
}

.inline-link {
    color: var(--red);
    border-bottom: 1px solid currentColor;
}

/* ══════════════════════════════════════════════════════
   PROCESO
   ══════════════════════════════════════════════════════ */
.process-section {
    padding: 120px 0;
    background: var(--cream2);
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.process-card {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 28px;
    transition: border-color 0.25s, transform 0.25s;
}

.process-card:hover {
    border-color: rgba(179, 64, 42, 0.45);
    transform: translateY(-4px);
}

.process-top {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
}

.process-num {
    font-family: var(--font-head);
    font-weight: 900;
    font-size: 3.4rem;
    line-height: 1;
    color: transparent;
    -webkit-text-stroke: 1.5px var(--red);
}

.process-time {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    padding: 6px 10px;
    border: 1px solid var(--line);
    border-radius: 999px;
    color: var(--light);
}

.process-card h3 {
    font-family: var(--font-head);
    font-weight: 700;
    font-size: 1.7rem;
    text-transform: uppercase;
    margin-top: 18px;
    color: var(--ink);
}

.process-card p {
    color: var(--light);
    margin-top: 8px;
    font-size: 0.95rem;
}

/* ══════════════════════════════════════════════════════
   DIAGNÓSTICO
   ══════════════════════════════════════════════════════ */
.diag-section {
    padding: 120px 0;
    background: var(--cream);
}

.diag-layout {
    display: grid;
    grid-template-columns: 5fr 7fr;
    gap: 28px;
    align-items: start;
}

.diag-tabs {
    display: grid;
    gap: 12px;
}

.diag-tab {
    display: flex;
    align-items: center;
    gap: 14px;
    width: 100%;
    text-align: left;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 20px 22px;
    color: var(--light);
    font-family: var(--font-head);
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    transition: border-color 0.2s, background 0.2s, color 0.2s, transform 0.2s;
}

.diag-tab .ico {
    font-size: 1.4rem;
}

.diag-tab:hover {
    border-color: rgba(36, 31, 26, 0.3);
    color: var(--ink);
}

.diag-tab.active {
    background: var(--red);
    border-color: var(--red);
    color: var(--white);
    transform: translateX(6px);
    box-shadow: 0 10px 24px -12px rgba(179, 64, 42, 0.55);
}

.diag-tab .arrow {
    margin-left: auto;
    opacity: 0;
    transition: opacity 0.2s;
}

.diag-tab.active .arrow {
    opacity: 1;
}

.diag-panel {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 32px;
    position: relative;
    overflow: hidden;
}

.diag-panel::after {
    content: '';
    position: absolute;
    right: -80px;
    top: -80px;
    width: 220px;
    height: 220px;
    border-radius: 50%;
    background: rgba(179, 64, 42, 0.07);
    filter: blur(50px);
    pointer-events: none;
}

.diag-panel h3 {
    font-family: var(--font-head);
    font-weight: 900;
    font-size: 2.2rem;
    text-transform: uppercase;
    line-height: 1;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--line);
    color: var(--ink);
}

.diag-cols {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 26px;
    margin-top: 22px;
}

.diag-block+.diag-block {
    margin-top: 20px;
}

.diag-block h4 {
    font-family: var(--font-mono);
    font-size: 0.66rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--steel);
    margin-bottom: 10px;
}

.diag-block ul {
    list-style: none;
    display: grid;
    gap: 8px;
}

.diag-block li {
    font-size: 0.92rem;
    color: var(--light);
    padding-left: 16px;
    position: relative;
}

.diag-block li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.62em;
    width: 7px;
    height: 2px;
    background: var(--red);
}

.diag-note {
    margin-top: 20px;
    padding: 14px 16px;
    border: 1px solid rgba(180, 120, 20, 0.35);
    background: rgba(217, 146, 33, 0.1);
    border-radius: 8px;
    font-size: 0.82rem;
    color: #92400e;
}

.diag-note strong {
    display: block;
    color: #78350f;
    margin-bottom: 4px;
}

.diag-cta {
    margin-top: 24px;
}

.diag-panel.fade {
    animation: fadeUp 0.35s ease;
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: none;
    }
}

/* ══════════════════════════════════════════════════════
   RESEÑAS
   ══════════════════════════════════════════════════════ */
.testimonials-section {
    padding: 120px 0;
    background: var(--cream2);
    overflow: hidden;
}

.reviews-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 24px;
    flex-wrap: wrap;
}

.reviews-head .section-header {
    margin-bottom: 0;
}

.google-badge {
    display: flex;
    align-items: center;
    gap: 16px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 16px 20px;
}

.google-pin {
    width: 46px;
    height: 46px;
    border-radius: 10px;
    background: var(--cream2);
    border: 1px solid var(--line);
    display: grid;
    place-items: center;
    font-size: 1.4rem;
}

.google-score {
    font-family: var(--font-head);
    font-weight: 900;
    font-size: 1.8rem;
    line-height: 1;
    color: var(--ink);
}

.google-score .stars {
    font-size: 1rem;
    margin-left: 6px;
}

.google-sub {
    font-size: 0.8rem;
    color: var(--steel);
}

.reviews-marquee {
    margin-top: 48px;
    overflow: hidden;
    mask-image: linear-gradient(to right, transparent, #000 8%, #000 92%, transparent);
    -webkit-mask-image: linear-gradient(to right, transparent, #000 8%, #000 92%, transparent);
}

.reviews-track {
    display: flex;
    gap: 22px;
    width: max-content;
    padding: 8px 0;
    animation: reviews 42s linear infinite;
}

.reviews-track:hover {
    animation-play-state: paused;
}

@keyframes reviews {
    from {
        transform: translateX(0);
    }

    to {
        transform: translateX(-33.3333%);
    }
}

.testimonial-card {
    width: 400px;
    flex-shrink: 0;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 26px;
    box-shadow: 0 12px 28px -20px rgba(36, 31, 26, 0.3);
    transition: border-color 0.25s, transform 0.25s;
}

.testimonial-card:hover {
    border-color: rgba(179, 64, 42, 0.4);
    transform: translateY(-3px);
}

.testimonial-head {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
}

.author-avatar {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    font-weight: 700;
    font-size: 0.8rem;
    color: var(--ink);
}

.testimonial-head strong {
    display: block;
    font-size: 0.95rem;
    color: var(--ink);
}

.testimonial-head span {
    font-size: 0.78rem;
    color: var(--steel);
}

.testimonial-head .stars {
    margin-left: auto;
    font-size: 0.75rem;
}

.testimonial-card blockquote {
    font-size: 0.92rem;
    color: var(--light);
    font-style: italic;
    white-space: normal;
}

.testimonial-foot {
    margin-top: 16px;
    display: flex;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: 0.62rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--steel);
}

.testimonial-foot .g {
    color: #4285f4;
    font-weight: 700;
}

/* ══════════════════════════════════════════════════════
   CONTACTO
   ══════════════════════════════════════════════════════ */
.contact-section {
    padding: 120px 0;
    background: var(--cream);
    overflow: hidden;
}

.contact-bg-shape {
    position: absolute;
    right: -20%;
    top: -30%;
    width: 60vw;
    height: 60vw;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(179, 64, 42, 0.06), transparent 60%);
    pointer-events: none;
}

.contact-inner {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 56px;
    position: relative;
}

.contact-title {
    font-family: var(--font-head);
    font-weight: 900;
    font-size: clamp(2.8rem, 6vw, 5rem);
    line-height: 0.92;
    text-transform: uppercase;
    color: var(--ink);
}

.contact-text>p {
    margin-top: 22px;
    color: var(--light);
    max-width: 460px;
    font-size: 1.05rem;
}

.contact-methods {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 32px;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 18px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--white);
    transition: border-color 0.2s, transform 0.2s;
}

.contact-method:hover {
    border-color: var(--red);
    transform: translateY(-2px);
}

.method-icon {
    width: 42px;
    height: 42px;
    border-radius: 8px;
    background: var(--cream2);
    display: grid;
    place-items: center;
    font-size: 1.2rem;
}

.method-icon.wa {
    background: var(--wa);
    color: var(--white);
}

.contact-method strong {
    display: block;
    font-family: var(--font-head);
    font-size: 1.1rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--ink);
}

.contact-method span {
    font-size: 0.85rem;
    color: var(--steel);
}

.contact-info {
    display: grid;
    gap: 18px;
    margin-top: 36px;
    padding-top: 28px;
    border-top: 1px solid var(--line);
}

.contact-info div {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.contact-info strong {
    font-size: 1rem;
    color: var(--ink);
}

.contact-info div>span:last-child {
    font-size: 0.88rem;
    color: var(--steel);
}

.contact-info .mono {
    color: var(--red);
    margin-bottom: 4px;
}

.contact-form {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 32px;
    display: grid;
    gap: 18px;
    align-self: start;
    box-shadow: 0 20px 40px -28px rgba(36, 31, 26, 0.35);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-family: var(--font-mono);
    font-size: 0.66rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--steel);
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    background: var(--cream2);
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 13px 14px;
    color: var(--ink);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: border-color 0.2s;
    resize: vertical;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: #9c9086;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--red);
}

.form-note {
    font-size: 0.8rem;
    color: var(--steel);
    text-align: center;
}

/* ══════════════════════════════════════════════════════
   FOOTER — único bloque oscuro deliberado del sitio
   ══════════════════════════════════════════════════════ */
.footer {
    background: var(--charcoal);
    color: var(--cream);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 64px;
}

.footer-inner {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 48px;
}

.footer-logo img {
    height: 52px;
    filter: invert(1) hue-rotate(180deg);
}

.footer-brand p {
    margin-top: 16px;
    color: #b9a894;
    font-size: 0.9rem;
    max-width: 320px;
}

.footer-col h4 {
    font-family: var(--font-head);
    font-weight: 700;
    font-size: 1.05rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.footer-col a {
    display: block;
    color: #b9a894;
    font-size: 0.9rem;
    padding: 4px 0;
    transition: color 0.2s;
}

.footer-col a:hover {
    color: var(--white);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 20px 0;
    width: min(1280px, 100% - 48px);
    margin-inline: auto;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    font-size: 0.82rem;
    color: #b9a894;
}

/* ══════════════════════════════════════════════════════
   WHATSAPP FLOTANTE · TOAST
   ══════════════════════════════════════════════════════ */
.wa-float {
    position: fixed;
    right: 22px;
    bottom: 22px;
    z-index: 90;
    width: 58px;
    height: 58px;
    border-radius: 50%;
    background: var(--wa);
    color: var(--white);
    display: grid;
    place-items: center;
    box-shadow: 0 14px 30px -10px rgba(37, 211, 102, 0.55);
    transition: transform 0.2s, background 0.2s;
}

.wa-float:hover {
    transform: scale(1.06);
    background: #20ba5a;
}

.toast {
    position: fixed;
    left: 50%;
    bottom: 28px;
    transform: translate(-50%, 80px);
    z-index: 95;
    background: var(--ink);
    color: var(--cream);
    font-weight: 600;
    padding: 14px 22px;
    border-radius: 8px;
    box-shadow: 0 16px 32px -12px rgba(36, 31, 26, 0.4);
    opacity: 0;
    transition: transform 0.35s, opacity 0.35s;
    pointer-events: none;
}

.toast.show {
    opacity: 1;
    transform: translate(-50%, 0);
}

/* ══════════════════════════════════════════════════════
   CHAT — ING. TURBOTEK
   ══════════════════════════════════════════════════════ */
.chat {
    position: fixed;
    right: 22px;
    bottom: 94px;
    z-index: 96;
    width: min(380px, calc(100vw - 32px));
    height: min(560px, calc(100vh - 120px));
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 14px;
    box-shadow: 0 24px 48px -20px rgba(36, 31, 26, 0.35);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.chat[hidden] {
    display: none;
}

.chat-head {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    background: var(--cream2);
    border-bottom: 1px solid var(--line);
}

.chat-avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--red);
    display: grid;
    place-items: center;
    font-family: var(--font-head);
    font-weight: 900;
    font-size: 0.9rem;
    color: var(--white);
}

.chat-head strong {
    display: block;
    font-family: var(--font-head);
    font-size: 1.1rem;
    letter-spacing: 0.04em;
    color: var(--ink);
}

.chat-head span {
    font-size: 0.75rem;
    color: var(--steel);
}

.chat-close {
    margin-left: auto;
    background: none;
    border: 0;
    color: var(--steel);
    font-size: 1rem;
    padding: 6px;
}

.chat-close:hover {
    color: var(--ink);
}

.chat-body {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.msg {
    max-width: 88%;
    padding: 10px 14px;
    border-radius: 12px;
    font-size: 0.9rem;
    line-height: 1.5;
    white-space: pre-line;
}

.msg.ai {
    align-self: flex-start;
    background: var(--cream2);
    border: 1px solid var(--line);
    color: var(--ink);
    border-bottom-left-radius: 4px;
}

.msg.user {
    align-self: flex-end;
    background: var(--red);
    color: var(--white);
    border-bottom-right-radius: 4px;
}

.msg.typing {
    color: var(--steel);
    font-style: italic;
}

.msg-cta {
    align-self: flex-start;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--wa);
    color: var(--white);
    font-weight: 600;
    font-size: 0.85rem;
    padding: 9px 14px;
    border-radius: 999px;
}

.chat-chips {
    display: flex;
    gap: 8px;
    padding: 10px 16px;
    overflow-x: auto;
    border-top: 1px solid var(--line);
    scrollbar-width: none;
}

.chat-chips::-webkit-scrollbar {
    display: none;
}

.chat-chips button {
    flex-shrink: 0;
    background: transparent;
    border: 1px solid var(--line);
    color: var(--light);
    font-size: 0.78rem;
    padding: 6px 12px;
    border-radius: 999px;
    transition: border-color 0.2s, color 0.2s;
}

.chat-chips button:hover {
    border-color: var(--red);
    color: var(--ink);
}

.chat-form {
    display: flex;
    gap: 8px;
    padding: 12px 16px;
    border-top: 1px solid var(--line);
    background: var(--cream2);
}

.chat-form input {
    flex: 1;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 10px 14px;
    color: var(--ink);
    font-family: var(--font-body);
    font-size: 0.9rem;
}

.chat-form input:focus {
    outline: none;
    border-color: var(--red);
}

.chat-form button {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: 0;
    background: var(--red);
    color: var(--white);
    font-size: 0.9rem;
}

/* ══════════════════════════════════════════════════════
   REVEAL
   ══════════════════════════════════════════════════════ */
.reveal {
    opacity: 0;
    transform: translateY(26px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
    opacity: 1;
    transform: none;
}

/* ══════════════════════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════════════════════ */
@media (max-width: 1100px) {
    .nav-links {
        display: none;
    }

    .nav-phone {
        display: none;
    }

    .engines-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .catalog-card {
        grid-template-columns: 1fr;
    }

    .catalog-img {
        aspect-ratio: 16 / 9;
    }

    .footer-inner {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 860px) {
    .nav-ai,
    .nav-cta {
        display: none;
    }

    .ai-float {
        display: inline-flex;
        justify-content: center;
        width: 50px;
        height: 50px;
        padding: 0;
        bottom: 90px;
        right: 26px;
        font-size: 1.3rem;
    }

    .ai-float-txt {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .hero {
        padding-top: calc(var(--nav-h) + 36vh);
        gap: 36px;
    }

    .hero-grid {
        grid-template-columns: 1fr;
    }

    .hero-visual {
        display: none;
    }

    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .catalog-grid,
    .process-grid,
    .diag-layout,
    .contact-inner {
        grid-template-columns: 1fr;
    }

    .diag-cols {
        grid-template-columns: 1fr;
    }

    .diag-tab.active {
        transform: none;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .parts-section,
    .brands-section,
    .process-section,
    .diag-section,
    .testimonials-section,
    .contact-section {
        padding: 80px 0;
    }

    .testimonial-card {
        width: 320px;
    }

    .chat {
        right: 16px;
        bottom: 88px;
    }
}

@media (max-width: 520px) {
    .container {
        width: calc(100% - 32px);
    }

    .engines-grid {
        grid-template-columns: 1fr;
    }

    .footer-inner {
        grid-template-columns: 1fr;
    }

    .hero-proof .proof-divider {
        display: none;
    }

    .loader-pct {
        font-size: 1.9rem;
    }
}

@media (prefers-reduced-motion: reduce) {

    .strip-track,
    .reviews-track,
    .pulse,
    .nav-ai-dot {
        animation: none;
    }

    .reveal {
        transition: none;
        opacity: 1;
        transform: none;
    }
}