/* Reset ligero + fundamentos tipográficos y de layout. */

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

* {
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

html,
body {
    height: 100%;
}

body {
    background: var(--surface-bg);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

button {
    font: inherit;
    color: inherit;
    background: none;
    border: none;
    cursor: pointer;
}

input {
    font: inherit;
    color: inherit;
}

h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.12;
    letter-spacing: -0.01em;
}

::selection {
    background: var(--c-gold-mid);
    color: var(--c-ink);
}

/* Respeta preferencia de reducción de movimiento */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
    }
}

/* --- Accesibilidad: foco visible y salto de contenido --- */

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
[tabindex]:focus-visible {
    outline: 2px solid var(--c-gold-light);
    outline-offset: 3px;
    border-radius: 2px;
}

.skip-link {
    position: absolute;
    top: -100%;
    left: var(--space-2);
    z-index: 1000;
    background: var(--c-gold-light);
    color: var(--c-ink);
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 700;
    transition: top var(--duration-fast) var(--ease-premium);
}

.skip-link:focus {
    top: var(--space-2);
}

/* --- Utilidades de layout --- */

.container {
    width: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--space-3);
}

.section {
    padding-block: var(--space-8);
    position: relative;
}

.section-head {
    max-width: 640px;
    margin-bottom: var(--space-5);
}

.section-head--center {
    max-width: 720px;
    margin-inline: auto;
    text-align: center;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.24em;
    text-transform: uppercase;
    color: var(--c-gold-light);
    margin-bottom: var(--space-2);
}

.eyebrow::before {
    content: '';
    width: 28px;
    height: 1px;
    background: var(--gradient-gold);
}

.section-title {
    font-size: clamp(1.9rem, 3.2vw, 3rem);
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.section-lede {
    color: var(--text-muted);
    font-size: 1.05rem;
    max-width: 56ch;
}

.text-gold {
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.visually-hidden {
    position: absolute !important;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
}

/* Elemento genérico animado por ScrollTrigger (ver animations.js) */
.reveal {
    opacity: 0;
    will-change: opacity, transform, filter;
}