/*
 * Estilos globales
 * Clases reutilizables y estilos base
 */

html {
    font-size: 16px;
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: var(--font-family);
    font-weight: var(--font-weight-regular);
    font-size: var(--text-base);
    line-height: var(--line-height-relaxed);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-wrap: break-word;
    word-break: break-word;
}

/* ─── Tipografía ────────────────────────────────────────── */

h1, .h1 {
    font-weight: var(--font-weight-bold);
    font-size: var(--text-5xl);
    line-height: var(--line-height-tight);
    letter-spacing: var(--letter-spacing-tight);
}

h2, .h2 {
    font-weight: var(--font-weight-semibold);
    font-size: var(--text-3xl);
    line-height: var(--line-height-tight);
}

h3, .h3 {
    font-weight: var(--font-weight-semibold);
    font-size: var(--text-2xl);
    line-height: var(--line-height-normal);
}

h4, .h4 {
    font-weight: var(--font-weight-semibold);
    font-size: var(--text-xl);
    line-height: var(--line-height-normal);
}

/* ─── Label caps (texto en mayúsculas) ──────────────────── */

.label-caps {
    font-weight: var(--font-weight-bold);
    font-size: var(--text-xs);
    line-height: 1;
    letter-spacing: var(--letter-spacing-wide);
    text-transform: uppercase;
}

.label-caps--wider {
    letter-spacing: var(--letter-spacing-wider);
}

.label-caps--widest {
    letter-spacing: var(--letter-spacing-widest);
}

/* ─── Contenedor ────────────────────────────────────────── */

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--margin-desktop);
}

/* ─── Secciones ─────────────────────────────────────────── */

.section {
    padding-top: var(--section-padding);
    padding-bottom: var(--section-padding);
}

.section--dark {
    background-color: var(--bg-secondary);
    color: var(--text-light);
}

.section--accent {
    background-color: var(--bg-accent);
}

/* ─── Botones ───────────────────────────────────────────── */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    font-weight: var(--font-weight-bold);
    font-size: var(--text-xs);
    letter-spacing: var(--letter-spacing-wide);
    text-transform: uppercase;
    padding: var(--spacing-lg) var(--spacing-xl);
    transition:
        background-color var(--transition-fast),
        color var(--transition-fast),
        transform var(--transition-fast);
    user-select: none;
}

.btn--primary {
    background-color: var(--bg-accent);
    color: var(--text-secondary);
}

.btn--primary:hover {
    filter: brightness(1.05);
}

.btn--primary:active {
    transform: scale(0.95);
}

.btn--outline {
    border: 1.5px solid var(--color-white);
    color: var(--text-light);
}

.btn--outline:hover {
    background-color: var(--color-white);
    color: var(--text-secondary);
}

.btn--secondary {
    background-color: var(--bg-accent);
    color: var(--text-secondary);
}

/* CTA especial del menú: amarillo → azul en hover + subrayado */
.btn--cta {
    background-color: var(--bg-accent);
    color: var(--text-secondary);
    position: relative;
    overflow: hidden;
    transition:
        background-color var(--transition-fast),
        color var(--transition-fast);
}

.btn--cta::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary-light);
    transition: width var(--transition-normal);
}

.btn--cta:hover {
    background-color: var(--bg-secondary);
    color: var(--text-light);
}

.btn--cta:hover::after {
    width: 100%;
}

.btn--link {
    color: var(--text-secondary);
    border-bottom: 2px solid var(--color-primary-light);
    padding: 0 0 var(--spacing-xs);
    border-radius: 0;
    letter-spacing: var(--letter-spacing-wide);
    font-size: var(--text-xs);
}

.btn--link:hover {
    color: var(--color-primary);
}

/* ─── Grid helpers ──────────────────────────────────────── */

.grid {
    display: grid;
    gap: var(--gutter);
}

.grid--2 {
    grid-template-columns: 1fr 1fr;
}

.grid--3 {
    grid-template-columns: 1fr 1fr 1fr;
}

.grid--4 {
    grid-template-columns: 1fr 1fr 1fr 1fr;
}

/* ─── Flex helpers ──────────────────────────────────────── */

.flex {
    display: flex;
}

.flex--center {
    align-items: center;
    justify-content: center;
}

.flex--between {
    align-items: center;
    justify-content: space-between;
}

.flex--col {
    flex-direction: column;
}

/* ─── Material Symbols ──────────────────────────────────── */

.material-symbols-outlined {
    font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
    line-height: 1;
}

/* ─── Text stroke effect ────────────────────────────────── */

.text-stroke {
    -webkit-text-stroke: 1px currentColor;
    color: transparent;
}

/* ─── Animaciones al scroll ────────────────────────────── */
/* Sistema reveal: oculto inicialmente, visible al entrar en viewport */

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(40px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInLeft {
    from { opacity: 0; transform: translateX(-40px); }
    to   { opacity: 1; transform: translateX(0); }
}

@keyframes fadeInRight {
    from { opacity: 0; transform: translateX(40px); }
    to   { opacity: 1; transform: translateX(0); }
}

@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.95); }
    to   { opacity: 1; transform: scale(1); }
}

/* Clase base: oculto con transición */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition:
        opacity 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94),
        transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    transition-delay: 0s;
}

.reveal--visible {
    opacity: 1;
    transform: translate(0, 0);
}

/* Variantes de dirección */
.reveal--left {
    transform: translateX(-40px);
}

.reveal--right {
    transform: translateX(0px);
}

.reveal--scale {
    transform: scale(0.95);
}

/* Retardos progresivos solo en entrada (al salir no hay demora) */
.reveal--visible.reveal--delay-1 { transition-delay: 0.1s; }
.reveal--visible.reveal--delay-2 { transition-delay: 0.2s; }
.reveal--visible.reveal--delay-3 { transition-delay: 0.3s; }
.reveal--visible.reveal--delay-4 { transition-delay: 0.4s; }
.reveal--visible.reveal--delay-5 { transition-delay: 0.5s; }

/* Clase legacy (compatibilidad) */
.animate-in {
    opacity: 0;
    transform: translateY(30px);
    transition:
        opacity 0.6s ease,
        transform 0.6s ease;
}

.animate-in--visible {
    opacity: 1;
    transform: translateY(0);
}