/* ============================================================================
   4link — Web corporativa (landing scrollytelling)
   Marketing-scale reinterpretation of the 4link Design System.
   Brand identity (Poppins, slate-blue palette, "4" gradient, logos) is taken
   from the design system; components are rebuilt at marketing scale — large
   type, full-bleed sections, immersive hero — NOT app chrome.
   ============================================================================ */

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

html {
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    scroll-behavior: auto; /* JS smooth-scroll handles anchors */
}

body {
    margin: 0;
    font-family: var(--font-sans);
    color: var(--ink);
    background: var(--paper);
    overflow-x: hidden;
}

/* ───────── Landing semantic tokens (built on DS tokens) ───────── */
:root {
    --ink: var(--gray-800); /* #292929 */
    --ink-strong: var(--gray-900);
    --ink-soft: var(--gray-600);
    --ink-faint: var(--gray-400);
    --paper: #ffffff;
    --paper-2: var(--gray-25); /* #fcfcfc */
    --paper-3: #f4f7fa; /* faint slate wash */
    --line: var(--gray-200);

    --accent: var(--primary-600); /* #27648d */
    --accent-deep: var(--primary-700); /* #15547e */
    --accent-soft: var(--primary-50);
    --accent-2: var(--appcc-600); /* teal secondary #0e9384 */
    --accent-2-soft: var(--appcc-50);

    --brand-grad: linear-gradient(135deg, #3a7197 0%, #a7d2dd 100%);
    --ink-grad: linear-gradient(150deg, #0e2b40 0%, #15547e 55%, #397096 100%);

    --shell: 1280px;
    --gutter: clamp(20px, 5vw, 88px);

    --motion: 1;
}

/* ───────── Type helpers (marketing scale) ───────── */
.eyebrow {
    font: 600 13px/1 var(--font-sans);
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--accent);
    display: inline-flex;
    align-items: center;
    gap: 12px;
    margin: 0;
}
.eyebrow::before {
    content: "";
    width: 28px;
    height: 1.5px;
    background: var(--accent);
    display: inline-block;
}
.eyebrow.is-light {
    color: rgba(255, 255, 255, 0.82);
}
.eyebrow.is-light::before {
    background: rgba(255, 255, 255, 0.6);
}
.eyebrow.is-centered {
    display: flex;
    justify-content: center;
}

.display {
    font-family: var(--font-display);
    font-weight: 300;
    letter-spacing: -0.03em;
    line-height: 0.98;
    color: var(--ink-strong);
    margin: 0;
    text-wrap: balance;
}
.display b,
.display strong {
    font-weight: 600;
}
.display em {
    font-style: italic;
    font-weight: 400;
    color: var(--accent);
}

.lead {
    font: 400 clamp(17px, 1.2vw, 19px)/1.6 var(--font-sans);
    color: var(--ink-soft);
    margin: 0;
    text-wrap: pretty;
    max-width: 56ch;
}

.section-title {
    font: 300 clamp(28px, 3.4vw, 46px)/1.08 var(--font-display);
    letter-spacing: -0.025em;
    color: var(--ink-strong);
    margin: 0;
    text-wrap: balance;
}
.section-title b {
    font-weight: 600;
}
.section-title em {
    font-style: italic;
    font-weight: 400;
    color: var(--accent);
}

/* ───────── Layout ───────── */
.shell {
    width: 100%;
    max-width: var(--shell);
    margin-inline: auto;
    padding-inline: var(--gutter);
}
section {
    position: relative;
}
.section-pad {
    padding-block: clamp(96px, 13vh, 192px);
}

/* ───────── Buttons — DS signature pill + invert hover ───────── */
.btn {
    --btn-bg: var(--accent);
    --btn-fg: #fff;
    --btn-bd: var(--accent);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    height: 56px;
    padding: 0 30px;
    border-radius: 9999px;
    border: 1.5px solid var(--btn-bd);
    background: var(--btn-bg);
    color: var(--btn-fg);
    font: 600 16px/1 var(--font-sans);
    letter-spacing: 0.005em;
    text-decoration: none;
    cursor: pointer;
    transition:
        background var(--dur-base) var(--ease-standard),
        color var(--dur-base) var(--ease-standard),
        border-color var(--dur-base) var(--ease-standard),
        transform var(--dur-base) var(--ease-standard);
    white-space: nowrap;
}
.btn .fa-solid,
.btn .fa-regular,
.btn i {
    font-size: 14px;
    transition: transform var(--dur-base) var(--ease-standard);
}
/* signature: fill -> white, text/border -> accent */
.btn:hover {
    --btn-bg: #fff;
    --btn-fg: var(--accent);
    --btn-bd: var(--accent);
}
.btn:hover i {
    transform: translateX(4px);
}
.btn:active {
    --btn-bg: var(--accent-soft);
    --btn-fg: var(--accent-deep);
}

.btn--ghost {
    --btn-bg: transparent;
    --btn-fg: var(--ink);
    --btn-bd: var(--line);
}
.btn--ghost:hover {
    --btn-bg: var(--ink-strong);
    --btn-fg: #fff;
    --btn-bd: var(--ink-strong);
}

.btn--on-dark {
    --btn-bg: #fff;
    --btn-fg: var(--accent-deep);
    --btn-bd: #fff;
}
.btn--on-dark:hover {
    --btn-bg: transparent;
    --btn-fg: #fff;
    --btn-bd: rgba(255, 255, 255, 0.7);
}

.textlink {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font: 600 16px/1 var(--font-sans);
    color: var(--accent-deep);
    text-decoration: none;
    padding-bottom: 4px;
    position: relative;
}
.textlink::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    height: 1.5px;
    width: 100%;
    background: currentColor;
    transform: scaleX(0.3);
    transform-origin: left;
    transition: transform var(--dur-slow) var(--ease-standard);
}
.textlink:hover::after {
    transform: scaleX(1);
}
.textlink i {
    transition: transform var(--dur-base) var(--ease-standard);
}
.textlink:hover i {
    transform: translateX(4px);
}

/* ============================================================================
   NAV
   ============================================================================ */
.nav {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 80;
    height: 76px;
    display: flex;
    align-items: center;
    transition:
        background var(--dur-slow) var(--ease-standard),
        box-shadow var(--dur-slow) var(--ease-standard),
        height var(--dur-slow) var(--ease-standard);
}
.nav__inner {
    width: 100%;
    max-width: var(--shell);
    margin-inline: auto;
    padding-inline: var(--gutter);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}
.nav__logo {
    display: flex;
    align-items: center;
    height: 30px;
}
.nav__logo img {
    height: 30px;
    width: auto;
    display: block;
}
.nav__links {
    display: flex;
    align-items: center;
    gap: 38px;
}
.nav__link {
    font: 500 15px/1 var(--font-sans);
    color: var(--nav-fg, #fff);
    text-decoration: none;
    opacity: 0.82;
    transition: opacity var(--dur-base) var(--ease-standard);
}
.nav__link:hover {
    opacity: 1;
}
.nav__cta {
    display: flex;
    align-items: center;
    gap: 16px;
}
.nav .btn {
    height: 44px;
    padding: 0 22px;
    font-size: 15px;
}

/* over-hero (transparent, light text) */
.nav {
    --nav-fg: #fff;
}
.nav .nav__logo img.logo-dark {
    display: none;
}
.nav .nav__logo img.logo-white {
    display: block;
}
.nav--scrolled {
    background: rgba(255, 255, 255, 0.86);
    -webkit-backdrop-filter: saturate(180%) blur(14px);
    backdrop-filter: saturate(180%) blur(14px);
    box-shadow:
        0 1px 0 var(--line),
        var(--shadow-sm);
    height: 68px;
    --nav-fg: var(--ink);
}
.nav--scrolled .nav__logo img.logo-dark {
    display: block;
}
.nav--scrolled .nav__logo img.logo-white {
    display: none;
}
.nav--scrolled .nav .btn {
    --btn-bg: var(--accent);
}

.nav__login {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    height: 40px;
    padding: 0 18px;
    border: 1px solid currentColor;
    border-radius: 999px;
    font: 500 14px/1 var(--font-sans);
    letter-spacing: 0.01em;
    color: var(--nav-fg, #fff);
    text-decoration: none;
    opacity: 0.9;
    transition:
        background var(--dur-base) var(--ease-standard),
        color var(--dur-base) var(--ease-standard),
        opacity var(--dur-base);
}
.nav__login i {
    font-size: 13px;
}
.nav__login:hover {
    opacity: 1;
    background: var(--nav-fg, #fff);
    color: var(--ink);
}
.nav--scrolled .nav__login:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}
@media (max-width: 900px) {
    .nav__login {
        display: none;
    }
}

.nav__burger {
    display: none;
}

/* mobile menu overlay */
.mobile-menu {
    position: fixed;
    inset: 0;
    z-index: 79;
    background: rgba(255, 255, 255, 0.98);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    padding: 0 var(--gutter);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-12px);
    transition:
        opacity var(--dur-slow) var(--ease-standard),
        transform var(--dur-slow) var(--ease-standard),
        visibility var(--dur-slow);
}
.mobile-menu.open {
    opacity: 1;
    visibility: visible;
    transform: none;
}
.mobile-menu a {
    font: 300 clamp(34px, 9vw, 56px)/1.1 var(--font-display);
    letter-spacing: -0.02em;
    color: var(--ink-strong);
    text-decoration: none;
    padding: 10px 0;
}
.mobile-menu a:active {
    color: var(--accent);
}
.mobile-menu .btn {
    margin-top: 28px;
    align-self: flex-start;
}
/* con el menú abierto la barra queda encima del fondo blanco: logo e icono en
   tinta, y la hamburguesa hace de botón de cierre (landing.js cambia el icono) */
.nav--menu {
    --nav-fg: var(--ink);
    background: transparent;
    box-shadow: none;
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
}
.nav--menu .nav__logo img.logo-dark {
    display: block;
}
.nav--menu .nav__logo img.logo-white {
    display: none;
}
html.menu-open {
    overflow: hidden;
}

/* scroll progress */
.progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 2px;
    z-index: 90;
    width: 100%;
    transform: scaleX(0);
    transform-origin: left;
    background: var(--accent);
}

/* journey rail — connective spine down the left edge */
.rail {
    position: fixed;
    left: 32px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 70;
    display: flex;
    flex-direction: column;
    gap: 24px;
}
.rail::before {
    content: "";
    position: absolute;
    left: 4px;
    top: -6px;
    bottom: -6px;
    width: 1px;
    background: rgba(130, 140, 150, 0.28);
}
.rail__dot {
    position: relative;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: rgba(130, 140, 150, 0.5);
    cursor: pointer;
    transition:
        background var(--dur-slow) var(--ease-standard),
        transform var(--dur-slow) var(--ease-standard);
}
.rail__dot:hover {
    background: var(--accent);
}
.rail__dot.active {
    background: var(--accent);
    transform: scale(1.55);
}
.rail__dot span {
    position: absolute;
    left: 22px;
    top: 50%;
    transform: translateY(-50%) translateX(-6px);
    font: 600 11px/1 var(--font-sans);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--ink);
    background: rgba(255, 255, 255, 0.94);
    box-shadow: var(--shadow-sm);
    padding: 6px 10px;
    border-radius: 7px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition:
        opacity var(--dur-base) var(--ease-standard),
        transform var(--dur-base) var(--ease-standard);
}
.rail__dot:hover span {
    opacity: 1;
    transform: translateY(-50%) translateX(0);
}
@media (max-width: 1180px) {
    .rail {
        display: none;
    }
}

/* ============================================================================
   HERO
   ============================================================================ */
.hero {
    position: relative;
    min-height: 100svh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: var(--paper);
}

.heroA {
    display: flex;
}

.heroA__media {
    position: absolute;
    inset: 0;
    z-index: 0;
    background: var(--ink-grad);
}
.media-fill {
    object-fit: cover;
}
.heroA__media .media-fill {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}
.heroA__media::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 2;
    background: linear-gradient(
        180deg,
        rgba(8, 40, 61, 0.55) 0%,
        rgba(8, 40, 61, 0.12) 30%,
        rgba(8, 40, 61, 0.3) 70%,
        rgba(8, 40, 61, 0.72) 100%
    );
}
.heroA__inner {
    position: relative;
    z-index: 3;
    width: 100%;
    color: #fff;
}
.heroA .display {
    color: #fff;
    font-size: clamp(40px, 6.2vw, 88px);
    font-weight: 300;
    max-width: 17ch;
}
.heroA .display b {
    font-weight: 600;
}
.heroA .display em {
    color: #cfe6f2;
}
.heroA__sub {
    margin-top: 32px;
    max-width: 46ch;
    font: 400 clamp(17px, 1.4vw, 21px)/1.6 var(--font-sans);
    color: rgba(255, 255, 255, 0.86);
}

.scrollcue {
    position: absolute;
    left: 50%;
    bottom: 30px;
    transform: translateX(-50%);
    z-index: 5;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    font: 600 11px/1 var(--font-sans);
    letter-spacing: 0.22em;
    text-transform: uppercase;
}
.scrollcue__line {
    width: 1px;
    height: 46px;
    background: currentColor;
    position: relative;
    overflow: hidden;
    opacity: 0.5;
}
.scrollcue__line::after {
    content: "";
    position: absolute;
    left: 0;
    top: -50%;
    width: 100%;
    height: 50%;
    background: var(--cue-run, #fff);
    animation: cueRun 2.2s var(--ease-standard) infinite;
}
@keyframes cueRun {
    0% {
        transform: translateY(-100%);
    }
    60%,
    100% {
        transform: translateY(300%);
    }
}
.scrollcue {
    color: #fff;
    --cue-run: #fff;
}

/* ============================================================================
   MANIFIESTO
   ============================================================================ */
.manifesto {
    background: var(--paper-2);
    border-block: 1px solid var(--line);
}
.manifesto__quote {
    font: 300 clamp(26px, 3.2vw, 46px)/1.22 var(--font-display);
    letter-spacing: -0.02em;
    color: var(--ink-strong);
    max-width: 22ch;
    text-wrap: balance;
}
.manifesto__quote .w {
    display: inline-block;
}
.manifesto__quote em {
    font-style: italic;
    font-weight: 400;
    color: var(--accent);
}
.manifesto__quote b {
    font-weight: 600;
}
.manifesto__meta {
    margin-top: 48px;
    display: flex;
    align-items: center;
    gap: 16px;
    color: var(--ink-soft);
    font: 400 16px/1.5 var(--font-sans);
}
.manifesto__meta .logomark {
    width: 30px;
    height: 30px;
    opacity: 0.9;
}

/* four pillars row */
.pillars {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    margin-top: clamp(56px, 7vh, 96px);
    background: var(--line);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    overflow: hidden;
}
.pillar {
    background: var(--paper-2);
    padding: 30px 26px 34px;
}
.pillar__n {
    font: 600 12px/1 var(--font-sans);
    letter-spacing: 0.14em;
    color: var(--ink-faint);
}
.pillar__t {
    margin-top: 18px;
    font: 500 clamp(20px, 2vw, 26px)/1.1 var(--font-display);
    letter-spacing: -0.02em;
    color: var(--ink-strong);
}
.pillar__d {
    margin-top: 12px;
    font: 400 14px/1.55 var(--font-sans);
    color: var(--ink-soft);
}
.pillar i {
    color: var(--accent);
    font-size: 18px;
}
@media (max-width: 900px) {
    .pillars {
        grid-template-columns: 1fr 1fr;
    }
}
@media (max-width: 480px) {
    .pillars {
        grid-template-columns: 1fr;
    }
}

/* ============================================================================
   QUIÉNES SOMOS
   ============================================================================ */
.about__grid {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: clamp(40px, 6vw, 110px);
    align-items: center;
}
/* la sombra va en el envoltorio: el clip-path de .clip-up la recortaría */
.about__frame {
    border-radius: 16px;
    box-shadow:
        0 24px 48px -16px rgba(8, 40, 61, 0.28),
        0 8px 18px -8px rgba(8, 40, 61, 0.14);
}
.about__media {
    --clip-radius: 16px;
    position: relative;
    border-radius: var(--clip-radius);
    overflow: hidden;
    aspect-ratio: 4 / 5;
    background: var(--ink-grad);
}
.about__media .media-fill {
    width: 100%;
    height: 100%;
    display: block;
}
.about__badge {
    position: absolute;
    left: 20px;
    bottom: 20px;
    z-index: 4;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(8px);
    border-radius: var(--radius-lg);
    padding: 16px 20px;
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    gap: 14px;
}
.about__badge .n {
    font: 600 28px/1 var(--font-display);
    color: var(--accent-deep);
    letter-spacing: -0.02em;
}
.about__badge .l {
    font: 400 13px/1.3 var(--font-sans);
    color: var(--ink-soft);
    max-width: 14ch;
}
.about__body p {
    margin: 0 0 22px;
}
.about__body .lead {
    margin-bottom: 30px;
}
.about__points {
    list-style: none;
    margin: 30px 0 36px;
    padding: 0;
    display: grid;
    gap: 2px;
}
.about__points li {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding: 18px 0;
    border-top: 1px solid var(--line);
    font: 400 16px/1.5 var(--font-sans);
    color: var(--ink-soft);
}
.about__points li:last-child {
    border-bottom: 1px solid var(--line);
}
.about__points i {
    color: var(--accent);
    font-size: 16px;
    margin-top: 3px;
}
.about__points b {
    color: var(--ink);
    font-weight: 600;
}

/* ============================================================================
   QUÉ HACEMOS — pinned horizontal track
   ============================================================================ */
.work {
    background: var(--ink-strong);
    color: #fff;
}
.work .section-title {
    color: #fff;
}
.work .eyebrow {
    color: #8fc7e6;
}
.work .eyebrow::before {
    background: #8fc7e6;
}

.work__pin {
    position: sticky;
    top: 0;
    height: 100svh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}
.work__head {
    flex: 0 0 auto;
    padding: clamp(64px, 9vh, 120px) var(--gutter) 0;
    width: 100%;
    max-width: var(--shell);
    margin-inline: auto;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 24px;
}
.work__head .lead {
    color: rgba(255, 255, 255, 0.66);
}
.work__counter {
    font: 300 15px/1 var(--font-sans);
    color: rgba(255, 255, 255, 0.5);
    letter-spacing: 0.05em;
}
.work__counter b {
    color: #fff;
    font-weight: 600;
    font-size: 19px;
}

.work__viewport {
    flex: 1 1 auto;
    display: flex;
    align-items: center;
    overflow: hidden;
}
.work__track {
    display: flex;
    gap: 32px;
    padding-inline: var(--gutter);
    will-change: transform;
}
.work__card {
    flex: 0 0 min(80vw, 540px);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: auto;
}
.work__card .media {
    position: relative;
    flex: 0 0 auto;
    height: clamp(220px, 30vh, 280px);
    overflow: hidden;
    background: var(--ink-grad);
}
.work__card .media .media-fill {
    width: 100%;
    height: 100%;
    display: block;
}
.work__card .tag {
    position: absolute;
    top: 16px;
    left: 16px;
    z-index: 4;
    background: rgba(8, 40, 61, 0.6);
    backdrop-filter: blur(6px);
    color: #fff;
    font: 600 12px/1 var(--font-sans);
    letter-spacing: 0.04em;
    padding: 8px 14px;
    border-radius: var(--radius-badge);
}
.work__card .body {
    flex: 0 0 auto;
    padding: 24px 28px 28px;
}
.work__card h3 {
    font: 500 23px/1.2 var(--font-display);
    margin: 0 0 8px;
    letter-spacing: -0.01em;
}
.work__card p {
    margin: 0;
    font: 400 15px/1.55 var(--font-sans);
    color: rgba(255, 255, 255, 0.62);
}
.work__card .feats {
    list-style: none;
    margin: 16px 0 0;
    padding: 0;
    display: grid;
    gap: 9px;
}
.work__card .feats li {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    font: 400 13.5px/1.45 var(--font-sans);
    color: rgba(255, 255, 255, 0.74);
}
.work__card .feats i {
    color: #8fc7e6;
    font-size: 12px;
    margin-top: 4px;
    flex: 0 0 auto;
    width: 14px;
    text-align: center;
}
.work__progress {
    flex: 0 0 auto;
    height: 2px;
    background: rgba(255, 255, 255, 0.14);
    margin: 0 var(--gutter) 34px;
}
.work__progress span {
    display: block;
    height: 100%;
    background: #fff;
    width: 0%;
}

/* ============================================================================
   CONFIANZA
   ============================================================================ */
.trust {
    background: var(--paper);
}
.trust__logos {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: clamp(64px, 9vh, 110px);
}
.trust__logos .cell {
    background: var(--paper);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 30px 18px;
    min-height: 104px;
}
.trust__logos .mark {
    font: 600 19px/1 var(--font-display);
    letter-spacing: -0.01em;
    color: var(--ink-faint);
    opacity: 0.75;
    transition:
        color var(--dur-base) var(--ease-standard),
        opacity var(--dur-base);
    display: flex;
    align-items: center;
    gap: 9px;
}
.trust__logos .cell:hover .mark {
    color: var(--accent);
    opacity: 1;
}
.trust__logos .mark i {
    font-size: 17px;
}
.trust__logos .clogo {
    max-height: 88px;
    max-width: 260px;
    width: auto;
    object-fit: contain;
    border-radius: 10px;
    transition: transform var(--dur-base) var(--ease-standard);
}
.trust__logos.cols-3 .cell:hover .clogo {
    transform: scale(1.04);
}
/* logos en negro: desatura y lleva a tinta; multiply funde el fondo blanco del JPG */
.trust__logos .clogo {
    max-height: 72px;
}
.trust__logos .clogo--tile {
    border-radius: 14px;
}

.stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: clamp(24px, 4vw, 56px);
    margin-bottom: clamp(64px, 9vh, 110px);
}
/* sin testimonios detrás, el margen se sumaba al padding de la sección */
.stats:last-child {
    margin-bottom: 0;
}
.stat {
    border-top: 2px solid var(--accent);
    padding-top: 22px;
}
.stat__num {
    font: 300 clamp(38px, 3.6vw, 58px)/1 var(--font-display);
    letter-spacing: -0.03em;
    color: var(--ink-strong);
}
.stat__num .suf {
    font-weight: 400;
}
.stat__lbl {
    margin-top: 12px;
    font: 400 15px/1.5 var(--font-sans);
    color: var(--ink-soft);
    max-width: 22ch;
}

.tests {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
}
.test {
    background: var(--paper-2);
    border: 1px solid var(--line);
    border-radius: var(--radius-2xl);
    padding: clamp(28px, 3vw, 44px);
    display: flex;
    flex-direction: column;
    gap: 26px;
}
.test__quote {
    font: 400 clamp(19px, 1.7vw, 25px)/1.45 var(--font-display);
    color: var(--ink-strong);
    letter-spacing: -0.01em;
    text-wrap: pretty;
}
.test__quote b {
    font-weight: 600;
    color: var(--accent-deep);
}
.test__by {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-top: auto;
}
.test__avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font: 600 16px/1 var(--font-sans);
}
.test__name {
    font: 600 15px/1.3 var(--font-sans);
    color: var(--ink);
}
.test__role {
    font: 400 14px/1.3 var(--font-sans);
    color: var(--ink-soft);
}

/* ============================================================================
   CONTACTO
   ============================================================================ */
.contact {
    position: relative;
    color: #fff;
    overflow: hidden;
}
.contact__bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    background: var(--ink-grad);
}
.contact__bg::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(120% 80% at 85% 10%, rgba(255, 255, 255, 0.1), transparent 55%);
}
.contact .shell {
    position: relative;
    z-index: 2;
}
.contact__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(48px, 7vw, 120px);
    align-items: start;
}
.contact .section-title {
    color: #fff;
}
.contact .section-title em {
    color: #a7d2dd;
}
.contact__lead {
    margin-top: 28px;
    font: 400 clamp(17px, 1.4vw, 21px)/1.6 var(--font-sans);
    color: rgba(255, 255, 255, 0.78);
    max-width: 44ch;
}
.contact__direct {
    margin-top: 44px;
    display: grid;
    gap: 4px;
}
.contact__direct a {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 18px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.16);
    color: #fff;
    text-decoration: none;
    font: 400 17px/1.4 var(--font-sans);
    transition: padding-left var(--dur-base) var(--ease-standard);
}
.contact__direct a:last-child {
    border-bottom: 1px solid rgba(255, 255, 255, 0.16);
}
.contact__direct a:hover {
    padding-left: 8px;
}
.contact__direct i {
    width: 22px;
    color: #a7d2dd;
}
.contact__direct .small {
    color: rgba(255, 255, 255, 0.55);
    font-size: 14px;
    margin-left: auto;
}

/* form (rebuilt marketing-scale, not the app input component) */
.form {
    display: grid;
    gap: 20px;
}
.form__row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}
.field {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.field label {
    font: 500 14px/1 var(--font-sans);
    color: rgba(255, 255, 255, 0.7);
}
.field input,
.field textarea {
    font: 400 16px/1.4 var(--font-sans);
    color: #fff;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: var(--radius-sm);
    padding: 15px 16px;
    transition:
        border-color var(--dur-base) var(--ease-standard),
        background var(--dur-base);
    width: 100%;
}
.field textarea {
    resize: vertical;
    min-height: 120px;
}
.field input::placeholder,
.field textarea::placeholder {
    color: rgba(255, 255, 255, 0.4);
    font-style: italic;
}
.field input:focus,
.field textarea:focus {
    outline: none;
    border-color: #a7d2dd;
    background: rgba(255, 255, 255, 0.1);
}
.field input.invalid,
.field textarea.invalid {
    border-color: var(--error-400);
}
.form__foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
}
.form__note {
    font: 400 13px/1.5 var(--font-sans);
    color: rgba(255, 255, 255, 0.5);
    max-width: 34ch;
}
/* capa básica de protección de datos (art. 13 RGPD), justo encima del botón */
.form__legal {
    margin: 0;
    font: 400 12px/1.55 var(--font-sans);
    color: rgba(255, 255, 255, 0.5);
}
.form__legal strong {
    font-weight: 600;
    color: rgba(255, 255, 255, 0.7);
}
.form__legal a {
    color: rgba(255, 255, 255, 0.78);
    text-decoration: underline;
    text-underline-offset: 2px;
}
.form__legal a:hover {
    color: #fff;
}
.form__ok {
    display: none;
    align-items: center;
    gap: 12px;
    font: 500 16px/1.4 var(--font-sans);
    color: #c1f3b1;
}
.form.sent .form__ok {
    display: flex;
}
.form.sent .form__grid,
.form.sent .form__foot {
    display: none;
}

/* honeypot — fuera de pantalla, no display:none (algunos bots lo detectan) */
.form__hp {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
}

/* estado de envío */
.form__error {
    margin: 0;
    font: 500 15px/1.45 var(--font-sans);
    color: #fba9bc;
    display: flex;
    align-items: center;
    gap: 10px;
}
.form__error[hidden] {
    display: none;
}
.form.sending {
    pointer-events: none;
}
.form.sending button[type="submit"] {
    opacity: 0.6;
    cursor: progress;
}

/* ============================================================================
   FOOTER
   ============================================================================ */
.footer {
    background: #08283d;
    color: rgba(255, 255, 255, 0.7);
}
.footer__top {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 48px;
    padding-block: clamp(40px, 5vh, 60px);
    align-items: center;
}
.footer__brand img {
    height: 32px;
    margin-bottom: 18px;
}
.footer__brand p {
    margin: 0;
    max-width: 42ch;
    font: 400 14px/1.6 var(--font-sans);
    color: rgba(255, 255, 255, 0.55);
}
.footer__aside {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 18px;
}
.footer__contact {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 10px;
}
.footer__contact a {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: rgba(255, 255, 255, 0.82);
    text-decoration: none;
    font: 400 15px/1.4 var(--font-sans);
    transition: color var(--dur-base);
}
.footer__contact a:hover {
    color: #fff;
}
.footer__contact i {
    color: #8fc7e6;
    font-size: 14px;
}
.footer__social {
    display: flex;
    gap: 10px;
}
.footer__social a {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    transition:
        background var(--dur-base) var(--ease-standard),
        border-color var(--dur-base);
}
.footer__social a:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: transparent;
}
.footer__col h4 {
    font: 600 13px/1 var(--font-sans);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.5);
    margin: 0 0 20px;
}
.footer__col a {
    display: block;
    color: rgba(255, 255, 255, 0.72);
    text-decoration: none;
    font: 400 15px/1 var(--font-sans);
    padding: 9px 0;
    transition: color var(--dur-base);
}
.footer__col a:hover {
    color: #fff;
}
.footer__bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    padding-block: 26px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 18px;
    flex-wrap: wrap;
    font: 400 13px/1.5 var(--font-sans);
    color: rgba(255, 255, 255, 0.45);
}
.footer__bottom a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
}
.footer__bottom a:hover {
    color: #fff;
}
.footer__legal {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}

/* ============================================================================
   FLUJO OPERATIVO — pinned, scroll-scrubbed continuous scene
   One sticky stage; a continuous drifting background; 4 stage panels that
   cross-fade as you descend. Estandarizar → Supervisar → Evaluar → Optimizar.
   ============================================================================ */
.flow {
    position: relative;
    height: 300vh;
    background: var(--ink-strong);
}
.flow__stage {
    position: sticky;
    top: 0;
    height: 100svh;
    overflow: hidden;
}

.flow__bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    background: var(--ink-grad);
}
.flow__bg img {
    position: absolute;
    left: -3%;
    right: -3%;
    top: -12%;
    width: 106%;
    height: 128%;
    object-fit: cover;
    opacity: 0.42;
    will-change: transform;
}
.flow__veil {
    position: absolute;
    inset: 0;
    z-index: 1;
    background:
        linear-gradient(180deg, rgba(4, 16, 26, 0.55) 0%, rgba(4, 16, 26, 0.1) 35%, rgba(4, 16, 26, 0.55) 100%),
        radial-gradient(120% 90% at 72% 32%, transparent 30%, rgba(4, 16, 26, 0.55) 100%);
}

.flow__head {
    position: absolute;
    top: clamp(92px, 12vh, 124px);
    left: var(--gutter);
    z-index: 4;
}
.flow__head .eyebrow {
    color: #8fc7e6;
}
.flow__head .eyebrow::before {
    background: #8fc7e6;
}

.flow__panels {
    position: absolute;
    inset: 0;
    z-index: 2;
}
.flow__panel {
    position: absolute;
    inset: 0;
    opacity: 0;
    will-change: opacity, transform;
}
.flow__panel-inner {
    width: 100%;
    max-width: var(--shell);
    margin-inline: auto;
    padding-inline: var(--gutter);
    height: 100%;
    display: grid;
    grid-template-columns: 1.04fr 0.96fr;
    gap: clamp(36px, 5vw, 84px);
    align-items: center;
}
.flow__media {
    align-self: center;
}
.flow__text {
    color: #fff;
}
.flow__tag {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    margin-bottom: 26px;
    padding: 8px 16px;
    border: 1px solid rgba(255, 255, 255, 0.28);
    border-radius: var(--radius-badge);
    font: 600 12px/1 var(--font-sans);
    letter-spacing: 0.05em;
    color: #cfe6f2;
}
.flow__tag i {
    font-size: 12px;
}
.flow__n {
    font: 300 clamp(54px, 7vw, 104px)/0.9 var(--font-display);
    letter-spacing: -0.04em;
    color: rgba(159, 211, 234, 0.22);
}
.flow__verb {
    font: 300 clamp(36px, 4.6vw, 62px)/1 var(--font-display);
    letter-spacing: -0.03em;
    color: #fff;
    margin-top: 6px;
}
.flow__lead {
    margin: 20px 0 0;
    font: 400 clamp(18px, 1.6vw, 23px)/1.45 var(--font-display);
    color: #cfe6f2;
    max-width: 22ch;
    letter-spacing: -0.01em;
}
.flow__desc {
    margin: 20px 0 0;
    font: 400 16px/1.65 var(--font-sans);
    color: rgba(255, 255, 255, 0.72);
    max-width: 44ch;
}

.flow__media {
    position: relative;
    /* tope de alto por el ancho (60vh · 4/3): un max-height recortaría la foto */
    width: min(100%, 80vh);
    aspect-ratio: 4 / 3;
    margin-inline: auto;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
    background: var(--ink-grad);
}
.flow__media .media-fill {
    width: 100%;
    height: 100%;
    display: block;
}
.flow__media .badge {
    position: absolute;
    left: 20px;
    bottom: 20px;
    z-index: 3;
    width: 54px;
    height: 54px;
    border-radius: 50%;
    background: rgba(8, 40, 61, 0.66);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #cfe6f2;
    font-size: 21px;
    border: 1px solid rgba(255, 255, 255, 0.16);
}

/* bottom stepper */
.flow__steps {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: 34px;
    z-index: 4;
    display: flex;
    gap: clamp(16px, 2.4vw, 32px);
}
.flow__step {
    display: flex;
    flex-direction: column;
    gap: 9px;
    align-items: center;
    color: rgba(255, 255, 255, 0.42);
    transition: color var(--dur-slow) var(--ease-standard);
}
.flow__step.active {
    color: #fff;
}
.flow__step b {
    font: 600 11px/1 var(--font-sans);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}
.flow__step .bar {
    width: clamp(40px, 6vw, 64px);
    height: 2px;
    background: rgba(255, 255, 255, 0.18);
    overflow: hidden;
}
.flow__step .bar i {
    display: block;
    height: 100%;
    background: #9fd3ea;
    transform: scaleX(0);
    transform-origin: left;
}

/* sin pin ni scrub —móvil/tablet, pantallas bajas y reduced motion—: los cuatro
   paneles se apilan y cada foto se ve entera. landing.js usa la misma query. */
@media (max-width: 860px), (max-height: 560px), (prefers-reduced-motion: reduce) {
    .flow {
        height: auto;
    }
    .flow__stage {
        position: static;
        height: auto;
    }
    /* estirada sobre toda la sección solo se verían trozos de tarjetas */
    .flow__bgimg {
        display: none;
    }
    .flow__panels {
        position: static;
    }
    .flow__panel {
        position: relative;
        opacity: 1 !important;
        transform: none !important;
        visibility: visible !important;
    }
    .flow__panel + .flow__panel {
        border-top: 1px solid rgba(255, 255, 255, 0.12);
    }
    .flow__panel-inner {
        height: auto;
        padding-block: clamp(56px, 10vh, 110px);
    }
    .flow__panel:first-child .flow__panel-inner {
        padding-top: clamp(32px, 5vh, 56px);
    }
    .flow__steps {
        display: none;
    }
    .flow__head {
        position: relative;
        top: auto;
        left: auto;
        padding: clamp(64px, 9vh, 96px) var(--gutter) 0;
    }
}
@media (max-width: 860px) {
    .flow__panel-inner {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .flow__desc {
        max-width: 52ch;
    }
}
@media (max-width: 600px) {
    .flow__panel-inner {
        padding-block: 48px 56px;
    }
    .flow__tag {
        margin-bottom: 20px;
    }
    .flow__media .badge {
        left: 14px;
        bottom: 14px;
        width: 44px;
        height: 44px;
        font-size: 17px;
    }
}

/* ============================================================================
   SCROLL REVEAL
   ============================================================================ */
.reveal {
    opacity: 1;
}
.js .reveal {
    opacity: 0;
    transform: translateY(calc(34px * var(--motion)));
    transition:
        opacity 0.9s var(--ease-standard),
        transform 0.9s var(--ease-standard);
}
.reveal.in {
    opacity: 1;
    transform: none;
}
.reveal-d1 {
    transition-delay: 0.08s;
}
.reveal-d2 {
    transition-delay: 0.16s;
}
.reveal-d3 {
    transition-delay: 0.24s;
}
.reveal-d4 {
    transition-delay: 0.32s;
}

/* el clip-path taparía el border-radius: se redondea con el mismo radio */
.js .clip-up {
    clip-path: inset(0 0 100% 0 round var(--clip-radius, 0));
    transition: clip-path 1.1s var(--ease-standard);
}
.clip-up.in {
    clip-path: inset(0 0 0% 0 round var(--clip-radius, 0));
}

.parallax {
    will-change: transform;
}

/* word-stagger for manifesto */
.js .stagger .w {
    opacity: 0;
    transform: translateY(calc(26px * var(--motion)));
    transition:
        opacity 0.7s var(--ease-standard),
        transform 0.7s var(--ease-standard);
}
.stagger.in .w {
    opacity: 1;
    transform: none;
}

@media (prefers-reduced-motion: reduce) {
    :root {
        --motion: 0;
    }
    .reveal,
    .stagger .w,
    .clip-up {
        transition: none !important;
        opacity: 1 !important;
        transform: none !important;
        clip-path: none !important;
    }
    .scrollcue__line::after {
        animation: none;
    }
}

/* ============================================================================
   RESPONSIVE
   ============================================================================ */
@media (max-width: 1024px) {
    .footer__top {
        grid-template-columns: 1fr;
        gap: 32px;
        align-items: start;
    }
    .footer__aside {
        align-items: flex-start;
    }
    .footer__contact {
        align-items: flex-start;
    }
}
@media (max-width: 900px) {
    .nav__links {
        display: none;
    }
    .nav__cta .btn {
        display: none;
    }
    .nav__burger {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 44px;
        height: 44px;
        border: none;
        background: transparent;
        cursor: pointer;
        color: var(--nav-fg);
        font-size: 20px;
    }
    .about__grid {
        grid-template-columns: 1fr;
        gap: 44px;
    }
    /* la foto es vertical (4:5): se limita el ancho en vez de recortarla */
    .about__frame {
        width: min(100%, 520px);
        margin-inline: auto;
    }
    .stats {
        grid-template-columns: 1fr 1fr;
        gap: 36px 28px;
    }
    .tests {
        grid-template-columns: 1fr;
    }
    .contact__grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    .trust__logos {
        grid-template-columns: repeat(3, 1fr);
    }
    .trust__logos .cell:nth-child(n + 4) {
        border-top: 1px solid var(--line);
    }

    /* mobile: same markup, swipeable track instead of scroll-pinned */
    .work__pin {
        position: static;
        height: auto;
    }
    .work__head {
        flex-direction: column;
        align-items: flex-start;
        gap: 14px;
        padding-bottom: 0;
    }
    .work__counter {
        display: none;
    }
    .work__viewport {
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
        padding-block: 40px 8px;
    }
    .work__track {
        transform: none !important;
        gap: 18px;
    }
    .work__card {
        flex: 0 0 82vw;
        height: auto;
        scroll-snap-align: center;
    }
    .work__card .media {
        height: 220px;
        flex: 0 0 auto;
    }
    .work__progress {
        margin-bottom: clamp(56px, 8vh, 90px);
    }
}
@media (max-width: 600px) {
    .section-pad {
        padding-block: clamp(72px, 10vh, 96px);
    }
    .heroA .display {
        font-size: clamp(40px, 11vw, 64px);
    }
    .about__badge {
        left: 14px;
        bottom: 14px;
        padding: 12px 16px;
        gap: 12px;
    }
    .about__badge .n {
        font-size: 24px;
    }
    .about__badge .l {
        font-size: 12px;
    }
    .form__row {
        grid-template-columns: 1fr;
    }
    .stats {
        grid-template-columns: 1fr 1fr;
    }
    .trust__logos {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer__top {
        grid-template-columns: 1fr;
    }
    /* email y teléfono ya están en la sección de contacto, justo encima */
    .footer__aside {
        display: none;
    }
    .footer__bottom {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* client logo band — airy, borderless */
.marquee {
    overflow: hidden;
    margin-bottom: clamp(64px, 9vh, 110px);
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 9%, #000 91%, transparent);
    mask-image: linear-gradient(90deg, transparent, #000 9%, #000 91%, transparent);
}
.marquee__track {
    display: flex;
    gap: 32px;
    width: max-content;
    animation: marqueeRun 75s linear 2s infinite;
}
/* parado hasta que el reveal lo muestra; el delay de 1s cuenta desde ahí */
.js .marquee:not(.in) .marquee__track,
.marquee:hover .marquee__track {
    animation-play-state: paused;
}
@keyframes marqueeRun {
    to {
        transform: translateX(calc(-50% - 16px));
    }
}
@media (prefers-reduced-motion: reduce) {
    .marquee__track {
        animation: none;
    }
    .marquee {
        overflow-x: auto;
    }
}
.marquee .trust__logos.cols-3 {
    margin-bottom: 0;
    flex-wrap: nowrap;
    gap: 32px;
}
.marquee .trust__logos.cols-3 .cell {
    width: 200px;
}
.marquee .trust__logos .clogo {
    max-width: 200px;
}
.trust__logos.cols-3 {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: clamp(28px, 6vw, 88px);
    background: none;
    border: none;
    border-radius: 0;
    overflow: visible;
}
.trust__logos.cols-3 .cell {
    background: none;
    min-height: 0;
    padding: 0;
    flex: 0 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    gap: 14px;
    text-decoration: none;
}
.trust__logos .cname {
    font: 500 13px/1 var(--font-sans);
    letter-spacing: 0.01em;
    color: var(--ink-faint);
    transition: color var(--dur-base) var(--ease-standard);
}
.trust__logos.cols-3 .cell:hover .cname {
    color: var(--ink-soft);
}
.trust__logos.cols-3 .mark {
    font-size: 20px;
}
.trust__logos.cols-3 .mark i {
    font-size: 17px;
}
@media (max-width: 720px) {
    .trust__logos.cols-3 {
        gap: 36px 48px;
    }
}