/*
 * Cargo Max — Main Stylesheet (base, buttons, shared blocks, footer)
 * BEM methodology. Brand: yellow #F7C948 + charcoal #1A1A1A/#2D2D2D on white.
 */

/* ---------- Reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { background-color: var(--color-white); overflow-x: hidden; }
a { color: inherit; text-decoration: none; transition: color var(--transition-fast); }
img, svg, video { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button { font: inherit; cursor: pointer; background: none; border: none; }
:focus-visible { outline: 3px solid var(--color-primary); outline-offset: 2px; border-radius: 3px; }

/* ---------- Layout helpers ---------- */
.container { width: min(100% - 2 * var(--container-pad), var(--container-max)); margin-inline: auto; }
.container--wide { max-width: var(--container-wide); }
.section { padding-block: var(--space-section); }
.section--muted { background: var(--color-gray-100); }
.section--dark { background: var(--color-charcoal); color: #E7E7E7; }
.section--dark h1, .section--dark h2, .section--dark h3, .section--dark h4 { color: var(--color-white); }
.section__head { max-width: 46rem; margin-bottom: clamp(2rem, 4vw, 3.25rem); }
.section__head--center { margin-inline: auto; text-align: center; }
.section__title { margin: .5rem 0 .75rem; }
.section__lead { font-size: var(--fs-body-lg); color: var(--color-text-body); }
.section--dark .section__lead { color: #C9C9C9; }
.site-main { min-height: 60vh; }

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
    padding: 12px 24px; border-radius: var(--radius-md);
    font-family: var(--font-body); font-weight: 600; font-size: var(--fs-body);
    line-height: 1; text-align: center; white-space: nowrap;
    border: 1px solid transparent; cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}
.btn__icon { display: inline-flex; }
.btn__icon svg { width: 18px; height: 18px; }
.btn--large { padding: 16px 32px; font-size: var(--fs-body-lg); }
.btn--small { padding: 8px 16px; font-size: var(--fs-body-sm); }
.btn--block { display: flex; width: 100%; }

.btn--primary { background: var(--color-primary); color: var(--color-black); }
.btn--primary:hover { background: var(--color-primary-hover); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn--secondary { background: transparent; color: var(--color-black); border-color: var(--color-black); }
.btn--secondary:hover { background: var(--color-black); color: var(--color-white); }
.btn--ghost { background: transparent; color: var(--color-black); }
.btn--ghost:hover { background: var(--color-gray-100); }
.btn--dark { background: var(--color-black); color: var(--color-white); }
.btn--dark:hover { background: var(--color-charcoal); transform: translateY(-2px); }
.btn--outline, .btn--outline-dark { background: transparent; color: var(--color-black); border-color: var(--color-black); }
.btn--outline:hover, .btn--outline-dark:hover { background: var(--color-black); color: var(--color-white); }
.btn--outline-light { background: transparent; color: var(--color-white); border-color: rgba(255,255,255,0.6); }
.btn--outline-light:hover { background: var(--color-white); color: var(--color-black); border-color: var(--color-white); }
.btn--whatsapp { background: var(--color-whatsapp); color: #fff; }
.btn--whatsapp:hover { background: var(--color-whatsapp-hover); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn[aria-disabled="true"], .btn:disabled { opacity: .5; cursor: not-allowed; pointer-events: none; }
.btn__spinner { width: 16px; height: 16px; border: 2px solid rgba(0,0,0,.25); border-top-color: currentColor; border-radius: 50%; animation: cmx-spin .7s linear infinite; }
@keyframes cmx-spin { to { transform: rotate(360deg); } }

/* Inline text link with arrow */
.link-arrow { display: inline-flex; align-items: center; gap: .4rem; font-weight: 600; color: var(--color-black); }
.link-arrow svg { width: 16px; height: 16px; transition: transform var(--transition-fast); }
.link-arrow:hover { color: var(--color-primary-hover); }
.link-arrow:hover svg { transform: translateX(3px); }

/* ---------- Shared icon chip ---------- */
.icon-chip { display: inline-grid; place-items: center; width: 52px; height: 52px; border-radius: var(--radius-md); background: var(--color-primary-soft); color: var(--color-black); }
.icon-chip svg { width: 26px; height: 26px; }
.icon-chip--dark { background: rgba(247,201,72,.16); color: var(--color-primary); }

/* ---------- Cards (shared) ---------- */
.card { background: var(--color-white); border: 1px solid var(--color-gray-200); border-radius: var(--radius-lg); padding: var(--space-3); transition: transform var(--transition-normal), box-shadow var(--transition-normal); }
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }

/* ---------- Topbar ---------- */
.site-topbar { background: var(--color-black); color: #EDEDED; font-size: var(--fs-body-sm); }
.site-topbar__inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: var(--topbar-height); }
.site-topbar__msg { display: inline-flex; align-items: center; gap: .5rem; }
.site-topbar__msg svg { width: 15px; height: 15px; color: var(--color-primary); }
.site-topbar__links { display: flex; align-items: center; gap: 1.25rem; }
.site-topbar__links a { display: inline-flex; align-items: center; gap: .4rem; color: #EDEDED; }
.site-topbar__links a:hover { color: var(--color-primary); }
.site-topbar__links svg { width: 15px; height: 15px; }
@media (max-width: 768px) { .site-topbar { display: none; } }

/* ---------- Footer ---------- */
.site-footer { background: var(--color-charcoal); color: #B9B9B9; padding-block: clamp(3rem, 6vw, 4.5rem) 1.75rem; font-size: var(--fs-body-sm); }
.site-footer__grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr 1.2fr; gap: 2.25rem; }
.site-footer__logo { width: 170px; height: auto; margin-bottom: 1.1rem; }
.site-footer__about { line-height: 1.7; max-width: 34ch; }
.site-footer__socials { display: flex; gap: .6rem; margin-top: 1.25rem; }
.site-footer__socials a { display: grid; place-items: center; width: 38px; height: 38px; border-radius: var(--radius-full); background: rgba(255,255,255,.08); color: #fff; transition: background var(--transition-fast), transform var(--transition-fast); }
.site-footer__socials a:hover { background: var(--color-primary); color: var(--color-black); transform: translateY(-2px); }
.site-footer__socials svg { width: 18px; height: 18px; }
.site-footer__heading { color: var(--color-white); font-size: var(--fs-body-sm); font-weight: 700; letter-spacing: .06em; text-transform: uppercase; margin-bottom: 1.1rem; }
.site-footer__links { display: flex; flex-direction: column; gap: .7rem; }
.site-footer__links a:hover { color: var(--color-primary); }
.site-footer__contact { font-style: normal; display: flex; flex-direction: column; gap: .7rem; }
.site-footer__contact a:hover { color: var(--color-primary); }
.site-footer__legal { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem; margin-top: 2.75rem; padding-top: 1.5rem; border-top: 1px solid rgba(255,255,255,.1); }
.site-footer__legal-links { display: flex; flex-wrap: wrap; gap: 1.25rem; }
.site-footer__legal-links a:hover { color: var(--color-primary); }
.site-footer__credit { color: #8A8A8A; }
@media (max-width: 1024px) { .site-footer__grid { grid-template-columns: 1fr 1fr 1fr; } .site-footer__brand { grid-column: 1 / -1; } }
@media (max-width: 640px) { .site-footer__grid { grid-template-columns: 1fr 1fr; gap: 1.75rem; } }
@media (max-width: 420px) { .site-footer__grid { grid-template-columns: 1fr; } }

/* ---------- Floating WhatsApp ---------- */
.wa-float { position: fixed; right: clamp(14px, 3vw, 26px); bottom: clamp(14px, 3vw, 26px); z-index: 950; display: inline-flex; align-items: center; gap: 0; overflow: hidden; height: 56px; padding: 0; border-radius: var(--radius-full); background: var(--color-whatsapp); color: #fff; box-shadow: var(--shadow-lg); transition: gap var(--transition-normal), padding var(--transition-normal), background var(--transition-fast); }
.wa-float__icon { display: grid; place-items: center; width: 56px; height: 56px; flex: none; }
.wa-float__icon svg { width: 28px; height: 28px; }
.wa-float__label { max-width: 0; white-space: nowrap; font-weight: 600; opacity: 0; transition: max-width var(--transition-normal), opacity var(--transition-normal), padding var(--transition-normal); }
.wa-float:hover { background: var(--color-whatsapp-hover); }
.wa-float:hover .wa-float__label, .wa-float:focus-visible .wa-float__label { max-width: 160px; opacity: 1; padding-right: 20px; }
@media (max-width: 768px) { .wa-float__label { display: none; } }

/* ---------- Reveal (progressive; visible if JS/motion off) ---------- */
.reveal { opacity: 1; }