/* Explain: Base reset, typography, animation styles, and utility classes. */
* {
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
    background: var(--background-color);
}

@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
    }
}

body {
    margin: 0;
    overflow-x: hidden;
    background: var(--background-color);
    color: var(--text-color);
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}

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

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

button,
input,
select,
textarea {
    font: inherit;
    color: inherit;
}

h1,
h2,
h3,
h4 {
    font-family: var(--font-heading);
    font-weight: 500;
    line-height: 1.08;
    letter-spacing: -0.012em;
    margin: 0;
}

p {
    margin: 0;
}

ul {
    margin: 0;
}

:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 3px;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Revelado de bloques al hacer scroll */
[data-reveal] {
    opacity: 0;
    transform: translateY(34px);
    filter: blur(5px);
    transition: opacity 1s var(--ease), transform 1s var(--ease), filter 1s var(--ease);
}

[data-reveal].is-visible {
    opacity: 1;
    transform: none;
    filter: blur(0);
}

/* Entradas de bloques siempre animadas */

/* ===== Titulares que entran palabra por palabra ===== */
[data-split] .split-word {
    display: inline-block;
}

[data-split] .split-word > span {
    display: inline-block;
    opacity: 0;
    transform: translateY(0.5em);
    transition: opacity 0.7s var(--ease), transform 0.85s var(--ease);
}

[data-split].is-split-in .split-word > span {
    opacity: 1;
    transform: none;
}

/* El titular de portada anima palabra por palabra, sin entrada en bloque */
.hero-copy > [data-split] {
    opacity: 1;
    animation: none;
}

/* ===== Cinta de palabras en movimiento ===== */
.marquee {
    position: relative;
    overflow: hidden;
    background: var(--graphite-color);
    color: var(--text-on-dark);
    border-block: 1px solid rgba(245, 242, 236, 0.12);
    padding-block: 20px;
}

.marquee-track {
    display: flex;
    width: max-content;
    animation: marqueeSlide 38s linear infinite;
}

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

.marquee-group {
    display: flex;
    align-items: center;
    flex: none;
    gap: 56px;
    padding-right: 56px;
}

.marquee-item {
    display: inline-flex;
    align-items: center;
    gap: 22px;
    font-family: var(--font-heading);
    font-size: clamp(1rem, 2.6vw, 1.7rem);
    white-space: nowrap;
    color: var(--text-on-dark);
}

.marquee-item i {
    font-size: 0.42em;
    color: var(--accent-color);
}

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

/* ===== Cifras animadas ===== */
.cifra .stat-num {
    margin: 0;
    font-family: var(--font-heading);
    font-size: clamp(2.6rem, 7vw, 4.4rem);
    font-weight: 500;
    line-height: 1;
    color: var(--text-on-dark);
}

.cifra .stat-suffix {
    margin-left: 2px;
    font-size: 0.6em;
    color: var(--accent-tint);
}

.cifra h3 {
    margin: 12px 0 8px;
    font-size: 1.05rem;
}

.cifra p {
    margin: 0;
    font-size: 0.94rem;
    color: var(--text-on-dark-muted);
}

/* ===== Indicador de scroll de portada ===== */
.scroll-cue {
    position: absolute;
    left: 50%;
    bottom: 22px;
    z-index: 3;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: rgba(245, 242, 236, 0.72);
    font-size: 0.62rem;
    letter-spacing: 0.24em;
    text-transform: uppercase;
}

.scroll-cue:hover {
    color: var(--text-on-dark);
}

.scroll-cue-line {
    position: relative;
    width: 1px;
    height: 46px;
    overflow: hidden;
    background: rgba(245, 242, 236, 0.25);
}

.scroll-cue-line::after {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--accent-tint);
    animation: cueDrop 2.2s var(--ease) infinite;
}

@keyframes cueDrop {
    0% {
        transform: translateY(-100%);
    }

    60%, 100% {
        transform: translateY(100%);
    }
}

@media (max-width: 640px) {
    .scroll-cue {
        display: none;
    }
}

/* ===== Botones con destello ===== */
.btn-accent {
    position: relative;
    overflow: hidden;
}

.btn-accent::after {
    content: '';
    position: absolute;
    top: 0;
    left: -150%;
    width: 55%;
    height: 100%;
    background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.34), transparent);
    transform: skewX(-18deg);
    transition: left 0.75s var(--ease);
}

.btn-accent:hover::after {
    left: 150%;
}

/* ===== Portadas con parallax ===== */
.page-hero-bg {
    will-change: transform;
}

/* La cinta de palabras, el destello de botones y los titulares se animan siempre */