/* =====================================================
   RUSOFIT 2.0 — ENTERPRISE DESIGN SYSTEM
   Fondo blanco/claro · Secciones oscuras de contraste
   ===================================================== */

/* ---- VARIABLES ---- */
:root {
    --bg:          #F8F7F4;
    --bg-w:        #FFFFFF;
    --dark:        #0C0C0C;
    --dark-2:      #141414;

    --red:         #D4111E;
    --red-dark:    #A80D17;
    --red-rgb:     212, 17, 30;

    --ink:         #0F0F0F;
    --muted:       #5A5A5A;
    --faint:       #B0A8A0;
    --border:      #E8E5E0;
    --border-dark: #1E1E1E;

    --f-display:   'Bebas Neue', sans-serif;
    --f-serif:     'Instrument Serif', serif;
    --f-body:      'Inter', sans-serif;

    --mw:          1240px;
    --sp:          clamp(88px, 11vw, 150px);
    --gutter:      clamp(20px, 5vw, 64px);

    --r:           6px;
    --ease:        cubic-bezier(0.4, 0, 0.2, 1);
    --spring:      cubic-bezier(0.34, 1.56, 0.64, 1);
    --t:           0.3s;
}

/* ---- RESET ---- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--f-body);
    background: var(--bg);
    color: var(--ink);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
img { max-width: 100%; display: block; object-fit: cover; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
em { font-family: var(--f-serif); font-style: italic; }

/* ---- CONTAINER ---- */
.container {
    max-width: var(--mw);
    margin: 0 auto;
    padding: 0 var(--gutter);
}

/* ---- TYPOGRAPHY TOKENS ---- */
.eyebrow {
    display: block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--red);
    margin-bottom: 16px;
}
.eyebrow--accent { color: var(--red); }

.h2 {
    font-family: var(--f-display);
    font-size: clamp(44px, 5.5vw, 78px);
    line-height: 0.95;
    letter-spacing: 0.3px;
    color: var(--ink);
    margin-bottom: 32px;
}
.h2 em { color: var(--red); }
.h2--light { color: #fff; }
.h2--light em { color: var(--red); }

/* ---- REVEAL ANIMATIONS ---- */
.reveal, .reveal-left, .reveal-right {
    opacity: 0;
    transition: opacity 0.85s var(--ease), transform 0.85s var(--ease);
}
.reveal       { transform: translateY(36px); }
.reveal-left  { transform: translateX(-44px); }
.reveal-right { transform: translateX(44px); }

.reveal.visible,
.reveal-left.visible,
.reveal-right.visible {
    opacity: 1;
    transform: none;
}

/* =====================================================
   BUTTONS
   ===================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--f-body);
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.2px;
    padding: 15px 30px;
    border-radius: var(--r);
    border: none;
    cursor: pointer;
    white-space: nowrap;
    transition: background var(--t) var(--ease),
                transform var(--t) var(--ease),
                box-shadow var(--t) var(--ease),
                border-color var(--t) var(--ease);
}
.btn svg { width: 18px; height: 18px; flex-shrink: 0; transition: transform var(--t) var(--ease); }
.btn:hover svg { transform: translateX(3px); }

/* Hero CTA */
.btn--hero {
    background: var(--red);
    color: #fff;
    font-size: 16px;
    padding: 18px 40px;
}
.btn--hero:hover {
    background: var(--red-dark);
    transform: translateY(-2px);
    box-shadow: 0 16px 48px rgba(var(--red-rgb), 0.4);
}

/* Ghost (on dark) */
.btn--ghost {
    background: transparent;
    color: rgba(255,255,255,0.7);
    border: 1.5px solid rgba(255,255,255,0.18);
    padding: 17px 30px;
}
.btn--ghost:hover {
    color: #fff;
    border-color: rgba(255,255,255,0.5);
    transform: translateY(-2px);
}
.btn--ghost svg { display: none; }

/* Primary (on dark bg) */
.btn--primary {
    background: var(--red);
    color: #fff;
}
.btn--primary:hover {
    background: var(--red-dark);
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(var(--red-rgb), 0.35);
}

/* Outline (on light bg) */
.btn--outline {
    background: transparent;
    color: var(--ink);
    border: 1.5px solid var(--border);
}
.btn--outline:hover {
    border-color: var(--ink);
    transform: translateY(-2px);
}
.btn--outline svg { display: none; }

/* WhatsApp CTA final */
.btn--wa {
    background: #25D366;
    color: #fff;
    font-size: 17px;
    padding: 22px 48px;
}
.btn--wa:hover {
    background: #1DA851;
    transform: translateY(-2px);
    box-shadow: 0 16px 48px rgba(37, 211, 102, 0.4);
}
.btn--wa svg { width: 22px; height: 22px; }
.btn--wa:hover svg { transform: none; }

/* =====================================================
   NAV
   ===================================================== */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    padding: 28px 0;
    border-bottom: 1px solid transparent;
    transition: padding var(--t) var(--ease),
                background var(--t) var(--ease),
                border-color var(--t) var(--ease);
}
.nav.scrolled {
    padding: 16px 0;
    background: rgba(12,12,12,0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom-color: var(--border-dark);
}
.nav__inner {
    max-width: var(--mw);
    margin: 0 auto;
    padding: 0 var(--gutter);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.nav__logo-img { height: 36px; width: auto; display: block; }
.nav__links {
    display: flex;
    align-items: center;
    gap: 36px;
}
.nav__link {
    font-size: 13px;
    font-weight: 500;
    color: rgba(255,255,255,0.55);
    letter-spacing: 0.3px;
    transition: color var(--t) var(--ease);
}
.nav__link:hover { color: #fff; }
.nav__cta {
    font-size: 13px;
    font-weight: 600;
    color: #fff;
    background: var(--red);
    padding: 10px 22px;
    border-radius: var(--r);
    transition: background var(--t) var(--ease);
}
.nav__cta:hover { background: var(--red-dark); }

/* Hamburger */
.nav__hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    z-index: 1001;
}
.nav__hamburger span {
    display: block;
    width: 24px; height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: transform 0.3s var(--ease), opacity 0.3s;
    transform-origin: center;
}
.nav__hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav__hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav__hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* =====================================================
   WHATSAPP FLOAT
   ===================================================== */
.wa-float {
    position: fixed;
    bottom: 28px; right: 28px;
    z-index: 999;
    width: 56px; height: 56px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(37,211,102,0.5);
    transition: transform var(--t) var(--ease),
                box-shadow var(--t) var(--ease),
                opacity var(--t) var(--ease);
}
.wa-float:hover {
    transform: scale(1.12);
    box-shadow: 0 8px 36px rgba(37,211,102,0.65);
}
.wa-float svg { width: 30px; height: 30px; color: #fff; }

/* =====================================================
   HERO  — fondo oscuro, split 50/50
   ===================================================== */
.hero {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    background: var(--dark);
    overflow: hidden;
}

/* Left column: text */
.hero__left {
    display: flex;
    align-items: center;
    padding: 130px var(--gutter) 80px;
    /* Align left edge with container on wide screens */
    padding-left: max(var(--gutter), calc((100vw - var(--mw)) / 2 + var(--gutter)));
}
.hero__left-inner { max-width: 560px; }

.hero__tag {
    display: block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--red);
    margin-bottom: 28px;
    animation: fadeUp 0.7s 0.1s var(--ease) both;
}

.hero__headline {
    font-family: var(--f-display);
    font-size: clamp(60px, 6.5vw, 98px);
    line-height: 0.92;
    letter-spacing: 0.5px;
    color: #fff;
    display: flex;
    flex-direction: column;
    margin-bottom: 28px;
}
.hero__line--accent { color: var(--red); }
.hero__line--1  { animation: fadeUp 0.65s 0.15s var(--ease) both; }
.hero__line--2  { animation: fadeUp 0.65s 0.22s var(--ease) both; }
.hero__line--3  { animation: fadeUp 0.65s 0.29s var(--ease) both; }
.hero__line--4  { animation: fadeUp 0.65s 0.36s var(--ease) both; }
.hero__line--5  { animation: fadeUp 0.65s 0.43s var(--ease) both; }
.hero__line--6  { animation: fadeUp 0.65s 0.50s var(--ease) both; }

.hero__sub {
    font-size: clamp(15px, 1.4vw, 17px);
    line-height: 1.8;
    color: rgba(255,255,255,0.5);
    margin-bottom: 40px;
    max-width: 400px;
    animation: fadeUp 0.65s 0.58s var(--ease) both;
}

.hero__actions {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 56px;
    flex-wrap: wrap;
    animation: fadeUp 0.65s 0.66s var(--ease) both;
}

/* Stats bar */
.hero__stats {
    display: flex;
    align-items: center;
    gap: 28px;
    padding-top: 28px;
    border-top: 1px solid rgba(255,255,255,0.07);
    animation: fadeUp 0.65s 0.74s var(--ease) both;
}
.hero__stat-num {
    display: block;
    font-family: var(--f-display);
    font-size: 36px;
    line-height: 1;
    color: #fff;
}
.hero__stat-label {
    display: block;
    font-size: 11px;
    color: rgba(255,255,255,0.35);
    line-height: 1.45;
    margin-top: 4px;
    letter-spacing: 0.2px;
}
.hero__stat-sep {
    width: 1px;
    height: 36px;
    background: rgba(255,255,255,0.08);
    flex-shrink: 0;
}

/* Right column: photo */
.hero__right {
    position: relative;
    overflow: hidden;
    animation: fadeIn 1s 0.25s var(--ease) both;
}
.hero__photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
    transition: transform 0.8s var(--ease);
}
/* Gradient blending left edge into dark bg */
.hero__photo-fade {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(to right, var(--dark) 0%, transparent 20%),
        linear-gradient(to top, var(--dark) 0%, transparent 20%);
    pointer-events: none;
}
/* Logo watermark on photo */
.hero__photo-badge {
    position: absolute;
    bottom: 28px;
    right: 28px;
    background: rgba(0,0,0,0.55);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--r);
    padding: 10px 16px;
}
.hero__photo-badge img { height: 26px; width: auto; opacity: 0.8; }

/* =====================================================
   MARQUEE — red strip
   ===================================================== */
.marquee {
    background: var(--red);
    overflow: hidden;
    padding: 13px 0;
    white-space: nowrap;
}
.marquee__track {
    display: inline-flex;
    align-items: center;
    animation: marquee 28s linear infinite;
}
.marquee__track span {
    font-family: var(--f-display);
    font-size: 16px;
    letter-spacing: 3px;
    color: #fff;
    padding: 0 22px;
}
.marquee__sep {
    color: rgba(255,255,255,0.4) !important;
    padding: 0 2px !important;
}

/* =====================================================
   EL PROBLEMA — fondo claro
   ===================================================== */
.problema {
    padding: var(--sp) 0;
    background: var(--bg);
}
.problema__wrap {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: clamp(40px, 8vw, 110px);
    align-items: start;
}
.problema__right {
    display: flex;
    flex-direction: column;
}
.problema__item {
    display: grid;
    grid-template-columns: 52px 1fr;
    gap: 16px;
    align-items: baseline;
    padding: 22px 0;
    border-bottom: 1px solid var(--border);
}
.problema__item:first-child { border-top: 1px solid var(--border); }
.problema__num {
    font-family: var(--f-display);
    font-size: 16px;
    color: var(--red);
    letter-spacing: 1px;
}
.problema__item p {
    font-size: 17px;
    line-height: 1.65;
    color: var(--muted);
}

/* =====================================================
   MI HISTORIA — fondo blanco, full bleed grid
   ===================================================== */
.historia {
    background: var(--bg-w);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.historia__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 88vh;
}
.historia__media {
    position: relative;
    overflow: hidden;
}
.historia__img {
    width: 100%;
    height: 100%;
    min-height: 600px;
    object-fit: cover;
    object-position: top center;
}
.historia__media-fade {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.65) 0%, transparent 55%);
    pointer-events: none;
}
.historia__quote {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    padding: 28px 36px;
    font-family: var(--f-serif);
    font-style: italic;
    font-size: clamp(18px, 2vw, 24px);
    color: #fff;
    line-height: 1.5;
}
.historia__content {
    display: flex;
    align-items: center;
    border-left: 1px solid var(--border);
}
.historia__content-inner {
    padding: clamp(52px, 7vw, 96px) clamp(36px, 5vw, 80px);
}
.historia__content-inner .h2 { margin-bottom: 28px; }
.historia__content-inner p {
    font-size: 16px;
    line-height: 1.88;
    color: var(--muted);
    margin-bottom: 20px;
}
.historia__content-inner p:last-of-type { margin-bottom: 36px; }

/* =====================================================
   TRANSFORMACIÓN — fondo oscuro + slider
   ===================================================== */
.transformacion {
    background: var(--dark);
    padding: var(--sp) 0;
}
.transformacion__header { margin-bottom: clamp(40px, 5vw, 64px); }
.transformacion__hint {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 16px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: rgba(255,255,255,0.25);
}
.transformacion__hint svg { width: 16px; height: 16px; }

/* Before/After Slider */
.ba-slider {
    position: relative;
    max-width: 720px;
    border-radius: var(--r);
    overflow: hidden;
    cursor: ew-resize;
    user-select: none;
    touch-action: none;
    -webkit-user-select: none;
}
.ba-after {
    display: block;
    width: 100%;
}
.ba-after img {
    width: 100%;
    aspect-ratio: 3/4;
    object-fit: cover;
    object-position: top center;
    display: block;
}
.ba-before {
    position: absolute;
    inset: 0;
    z-index: 2;
    clip-path: inset(0 50% 0 0);
    transition: clip-path 0s;
}
.ba-before img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
}
/* Labels */
.ba-label {
    position: absolute;
    top: 20px;
    z-index: 4;
    font-family: var(--f-display);
    font-size: 18px;
    letter-spacing: 2px;
    padding: 5px 18px;
    border-radius: 100px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    pointer-events: none;
}
.ba-label--before { left: 20px; color: rgba(255,255,255,0.7); background: rgba(0,0,0,0.5); }
.ba-label--after  { right: 20px; color: #fff; background: rgba(var(--red-rgb), 0.85); }
/* Handle */
.ba-handle {
    position: absolute;
    top: 0; bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    z-index: 5;
    display: flex;
    flex-direction: column;
    align-items: center;
    pointer-events: none;
    width: 48px;
}
.ba-line { flex: 1; width: 2px; background: rgba(255,255,255,0.9); }
.ba-btn {
    width: 48px; height: 48px;
    background: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 24px rgba(0,0,0,0.4);
    flex-shrink: 0;
}
.ba-btn svg { width: 20px; height: 20px; color: var(--ink); }
.ba-range {
    position: absolute;
    inset: 0;
    width: 100%;
    opacity: 0;
    cursor: ew-resize;
    z-index: 6;
}

/* =====================================================
   EVOLUCIÓN — fondo oscuro, 4 fotos grid
   ===================================================== */
.evolucion {
    background: var(--dark);
    padding-bottom: var(--sp);
}
.evolucion__header {
    padding: 0 0 clamp(40px,5vw,64px);
}
.evolucion__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 3px;
}
.evolucion__item {
    position: relative;
    overflow: hidden;
}
.evolucion__item img {
    width: 100%;
    aspect-ratio: 3/4;
    object-fit: cover;
    object-position: top center;
    display: block;
    transition: transform 0.6s var(--ease);
}
.evolucion__item:hover img { transform: scale(1.05); }
.evolucion__cap {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    padding: 22px 18px;
    background: linear-gradient(to top, rgba(0,0,0,0.88) 0%, transparent 100%);
    opacity: 0;
    transform: translateY(6px);
    transition: opacity 0.4s var(--ease), transform 0.4s var(--ease);
}
.evolucion__item:hover .evolucion__cap { opacity: 1; transform: translateY(0); }
.evolucion__cap span {
    font-size: 12px;
    font-weight: 500;
    color: rgba(255,255,255,0.85);
    line-height: 1.4;
    letter-spacing: 0.2px;
}
/* Stagger reveal */
.evolucion__grid .evolucion__item:nth-child(2) { transition-delay: 0.1s; }
.evolucion__grid .evolucion__item:nth-child(3) { transition-delay: 0.2s; }
.evolucion__grid .evolucion__item:nth-child(4) { transition-delay: 0.3s; }

/* =====================================================
   LOS 3 PILARES — fondo claro
   ===================================================== */
.pilares {
    background: var(--bg);
    padding: var(--sp) 0;
}
.pilares__header { margin-bottom: clamp(48px, 6vw, 80px); }
.pilares__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.pilar {
    background: var(--bg-w);
    border: 1px solid var(--border);
    border-radius: var(--r);
    padding: clamp(36px, 4vw, 56px) clamp(28px, 3vw, 44px);
    transition: border-color var(--t) var(--ease),
                box-shadow var(--t) var(--ease),
                transform var(--t) var(--ease);
}
.pilar:hover {
    border-color: var(--red);
    box-shadow: 0 16px 48px rgba(var(--red-rgb), 0.1);
    transform: translateY(-5px);
}
.pilar__top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 28px;
}
.pilar__num {
    font-family: var(--f-display);
    font-size: 52px;
    line-height: 1;
    color: var(--border);
    transition: color var(--t) var(--ease);
}
.pilar:hover .pilar__num { color: var(--red); }
.pilar__icon {
    width: 44px; height: 44px;
    background: var(--bg);
    border-radius: var(--r);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--t) var(--ease);
}
.pilar:hover .pilar__icon { background: rgba(var(--red-rgb), 0.07); }
.pilar__icon svg { width: 20px; height: 20px; color: var(--muted); transition: color var(--t) var(--ease); }
.pilar:hover .pilar__icon svg { color: var(--red); }
.pilar h3 {
    font-family: var(--f-display);
    font-size: 26px;
    letter-spacing: 0.4px;
    color: var(--ink);
    margin-bottom: 12px;
}
.pilar p { font-size: 15px; line-height: 1.78; color: var(--muted); }
/* Stagger */
.pilares__grid .pilar:nth-child(2) { transition-delay: 0.1s; }
.pilares__grid .pilar:nth-child(3) { transition-delay: 0.2s; }

/* =====================================================
   EL PROCESO — fondo blanco
   ===================================================== */
.proceso {
    background: var(--bg-w);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: var(--sp) 0;
}
.proceso__header { margin-bottom: clamp(48px, 6vw, 80px); }
.proceso__steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
}
.step__head {
    display: flex;
    align-items: center;
    margin-bottom: 24px;
}
.step__num {
    width: 52px; height: 52px;
    border: 2px solid var(--red);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--f-display);
    font-size: 22px;
    color: var(--red);
    background: var(--bg-w);
    position: relative;
    z-index: 1;
    flex-shrink: 0;
    transition: background var(--t) var(--ease), color var(--t) var(--ease);
}
.step:hover .step__num { background: var(--red); color: #fff; }
.step__line {
    flex: 1;
    height: 2px;
    background: linear-gradient(to right, var(--red), var(--border));
    margin-left: -1px;
}
.step h3 {
    font-family: var(--f-display);
    font-size: 22px;
    letter-spacing: 0.3px;
    color: var(--ink);
    margin-bottom: 10px;
}
.step p { font-size: 14px; line-height: 1.78; color: var(--muted); }
/* Stagger */
.proceso__steps .step:nth-child(2) { transition-delay: 0.1s; }
.proceso__steps .step:nth-child(3) { transition-delay: 0.2s; }
.proceso__steps .step:nth-child(4) { transition-delay: 0.3s; }

/* =====================================================
   EL MÉTODO — fondo oscuro
   ===================================================== */
.metodo {
    background: var(--dark);
    padding: var(--sp) 0;
}
.metodo__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(48px, 8vw, 100px);
    align-items: center;
}
.metodo__left .h2 { margin-bottom: 20px; }
.metodo__desc {
    font-size: 16px;
    line-height: 1.82;
    color: rgba(255,255,255,0.5);
    margin-bottom: 28px;
}
.metodo__alert {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 18px 22px;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.07);
    border-left: 3px solid var(--red);
    border-radius: 0 var(--r) var(--r) 0;
    margin-bottom: 36px;
}
.metodo__alert svg { width: 18px; height: 18px; color: var(--red); flex-shrink: 0; margin-top: 2px; }
.metodo__alert p { font-size: 14px; line-height: 1.65; color: rgba(255,255,255,0.5); }
.metodo__list {
    display: flex;
    flex-direction: column;
    gap: 0;
}
.metodo__list li {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 18px 0;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}
.metodo__list li:last-child { border-bottom: none; }
.metodo__list li svg { width: 18px; height: 18px; color: var(--red); flex-shrink: 0; }
.metodo__list li span { font-size: 16px; font-weight: 500; color: rgba(255,255,255,0.82); }

/* =====================================================
   PARA QUIÉN — fondo claro
   ===================================================== */
.paraquien {
    background: var(--bg);
    padding: var(--sp) 0;
}
.paraquien__header { margin-bottom: clamp(48px, 6vw, 80px); }
.paraquien__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}
.paraquien__col {
    border-radius: var(--r);
    padding: clamp(36px, 4vw, 56px);
    border: 1px solid var(--border);
}
.paraquien__col--si { background: var(--bg-w); }
.paraquien__col--no { background: var(--bg); }
.paraquien__col-head {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 28px;
}
.paraquien__badge {
    width: 34px; height: 34px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    flex-shrink: 0;
}
.paraquien__badge--si { background: var(--red); color: #fff; }
.paraquien__badge--no { background: var(--border); color: var(--muted); }
.paraquien__col-head h3 {
    font-family: var(--f-display);
    font-size: 24px;
    letter-spacing: 0.3px;
    color: var(--ink);
}
.paraquien__col ul { display: flex; flex-direction: column; gap: 14px; }
.paraquien__col ul li {
    font-size: 15px;
    line-height: 1.55;
    color: var(--muted);
    padding-left: 18px;
    position: relative;
}
.paraquien__col ul li::before {
    content: '';
    position: absolute;
    left: 0; top: 8px;
    width: 6px; height: 6px;
    border-radius: 50%;
}
.paraquien__col--si ul li::before { background: var(--red); }
.paraquien__col--no ul li::before { background: var(--border); }
/* Stagger */
.paraquien__grid .paraquien__col--no { transition-delay: 0.14s; }

/* =====================================================
   CTA FINAL — fondo oscuro
   ===================================================== */
.cta-final {
    background: var(--dark);
    padding: clamp(100px, 14vw, 180px) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.cta-final__glow {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 70% 60% at 50% 50%, rgba(var(--red-rgb), 0.15) 0%, transparent 65%);
    pointer-events: none;
}
.cta-final__inner { position: relative; z-index: 1; }
.cta-final__title {
    font-family: var(--f-display);
    font-size: clamp(68px, 12vw, 140px);
    line-height: 0.9;
    color: #fff;
    margin-bottom: 24px;
}
.cta-final__title em {
    font-family: var(--f-serif);
    font-style: italic;
    color: var(--red);
}
.cta-final__text {
    font-size: clamp(16px, 1.8vw, 19px);
    line-height: 1.72;
    color: rgba(255,255,255,0.45);
    margin-bottom: 48px;
}
.cta-final__tel {
    margin-top: 20px;
    font-size: 13px;
    letter-spacing: 2px;
    color: rgba(255,255,255,0.2);
}

/* =====================================================
   FOOTER — muy oscuro
   ===================================================== */
.footer {
    background: var(--dark-2);
    border-top: 1px solid var(--border-dark);
    padding: clamp(52px, 7vw, 80px) 0;
}
.footer__inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 28px;
    text-align: center;
}
.footer__logo img { height: 50px; width: auto; opacity: 0.85; }
.footer__social {
    display: flex;
    align-items: center;
    gap: 32px;
    flex-wrap: wrap;
    justify-content: center;
}
.footer__slink {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: rgba(255,255,255,0.38);
    transition: color var(--t) var(--ease);
    letter-spacing: 0.2px;
}
.footer__slink:hover { color: rgba(255,255,255,0.8); }
.footer__slink svg { width: 16px; height: 16px; flex-shrink: 0; }
.footer__copy { font-size: 12px; color: rgba(255,255,255,0.18); letter-spacing: 0.5px; }

/* =====================================================
   KEYFRAMES
   ===================================================== */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(26px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}
@keyframes marquee {
    from { transform: translateX(0); }
    to   { transform: translateX(-50%); }
}

/* =====================================================
   RESPONSIVE — TABLET ≤1024px
   ===================================================== */
@media (max-width: 1024px) {
    .pilares__grid { grid-template-columns: 1fr; gap: 16px; }
    .proceso__steps { grid-template-columns: repeat(2, 1fr); }
    .step__line { display: none; }
    .metodo__grid { grid-template-columns: 1fr; gap: 52px; }
    .evolucion__grid { grid-template-columns: repeat(2, 1fr); }
}

/* =====================================================
   RESPONSIVE — MOBILE ≤768px
   ===================================================== */
@media (max-width: 768px) {

    /* Nav mobile */
    .nav__hamburger { display: flex; }
    .nav__links {
        position: fixed;
        top: 0; right: -100%;
        width: min(300px, 85vw);
        height: 100dvh;
        background: rgba(10,10,10,0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: flex-start;
        justify-content: center;
        gap: 28px;
        padding: 52px 36px;
        transition: right 0.4s var(--ease);
        border-left: 1px solid var(--border-dark);
        z-index: 1000;
    }
    .nav__links.open { right: 0; }
    .nav__link { font-size: 17px; color: rgba(255,255,255,0.8); }
    .nav__cta { font-size: 15px; padding: 12px 24px; }

    /* Hero mobile */
    .hero {
        grid-template-columns: 1fr;
        grid-template-rows: 64vw auto;
    }
    .hero__right { order: 1; height: 64vw; min-height: 280px; }
    .hero__photo-fade {
        background:
            linear-gradient(to bottom, transparent 40%, var(--dark) 100%);
    }
    .hero__left {
        order: 2;
        padding: 32px 24px 60px;
    }
    .hero__actions { flex-direction: column; }
    .hero__actions .btn { width: 100%; justify-content: center; }
    .hero__stats { gap: 18px; }
    .hero__stat-num { font-size: 28px; }

    /* Content sections */
    .problema__wrap { grid-template-columns: 1fr; gap: 40px; }
    .historia__grid { grid-template-columns: 1fr; min-height: auto; }
    .historia__media { min-height: 60vw; }
    .historia__img { min-height: 60vw; height: 60vw; }
    .historia__content { border-left: none; border-top: 1px solid var(--border); }
    .historia__content-inner { max-width: 100%; }
    .paraquien__grid { grid-template-columns: 1fr; }
    .proceso__steps { grid-template-columns: 1fr; }
    .evolucion__grid { grid-template-columns: repeat(2, 1fr); }
    .cta-final .btn--wa { width: 100%; justify-content: center; }

    /* WhatsApp float */
    .wa-float { bottom: 20px; right: 20px; width: 50px; height: 50px; }
    .wa-float svg { width: 26px; height: 26px; }

    /* BA Slider */
    .ba-slider { max-width: 100%; }
}

/* =====================================================
   RESPONSIVE — SMALL MOBILE ≤480px
   ===================================================== */
@media (max-width: 480px) {
    .hero__stat-sep { display: none; }
    .hero__stats { gap: 20px; }
    .footer__slink span { display: none; }
    .footer__slink svg { width: 22px; height: 22px; }
    .footer__social { gap: 24px; }
    .paraquien__col { padding: 28px 20px; }
}