/* =====================================================================
   MacLab Stores — Base
   Reset, element defaults, layout primitives, and utility classes.
   ===================================================================== */

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    line-height: var(--leading-body);
    color: var(--ink);
    background: var(--canvas);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
}

img, picture, svg, video { display: block; max-width: 100%; }
input, button, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: none; }
a { color: inherit; text-decoration: none; }
ul[role="list"], ol[role="list"] { list-style: none; padding: 0; }

/* ---- Headings ---- */
h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: var(--leading-tight);
    letter-spacing: var(--tracking-tight);
    color: var(--ink);
    text-wrap: balance;
}
h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); letter-spacing: var(--tracking-flat); }
p  { text-wrap: pretty; }

/* ---- Focus (visible, keyboard only) ---- */
:focus-visible {
    outline: none;
    box-shadow: var(--ring);
    border-radius: var(--r-xs);
}
::selection { background: var(--cyan); color: #fff; }

/* ---- Layout primitives ---- */
.container {
    width: 100%;
    max-width: var(--container);
    margin-inline: auto;
    padding-inline: var(--gutter);
}
.container-wide { max-width: var(--container-wide); }

.section { padding-block: clamp(3.5rem, 8vw, 7rem); }
.section-sm { padding-block: clamp(2.5rem, 5vw, 4rem); }
.surface { background: var(--surface); }

/* ---- Section header pattern ---- */
.eyebrow {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    letter-spacing: var(--tracking-label);
    text-transform: uppercase;
    color: var(--graphite);
    display: inline-flex;
    align-items: center;
    gap: var(--sp-2);
}
.eyebrow::before {
    content: "";
    width: 22px; height: 2px;
    background: var(--red);
    border-radius: 2px;
}
.section-head { max-width: 44ch; margin-bottom: clamp(2rem, 4vw, 3.25rem); }
.section-head h2 { margin-top: var(--sp-3); }
.section-head p { margin-top: var(--sp-3); color: var(--graphite); font-size: var(--text-lg); }

.lead { font-size: var(--text-lg); color: var(--graphite); line-height: var(--leading-snug); }

/* ---- Text utilities ---- */
.u-mono { font-family: var(--font-mono); }
.u-display { font-family: var(--font-display); }
.u-muted { color: var(--graphite); }
.u-center { text-align: center; }
.u-balance { text-wrap: balance; }

/* ---- Grid helpers ---- */
.grid { display: grid; gap: var(--sp-5); }
.cols-2 { grid-template-columns: repeat(2, 1fr); }
.cols-3 { grid-template-columns: repeat(3, 1fr); }
.cols-4 { grid-template-columns: repeat(4, 1fr); }
.auto-fit { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

/* ---- Accessibility ---- */
.visually-hidden {
    position: absolute; width: 1px; height: 1px;
    padding: 0; margin: -1px; overflow: hidden;
    clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
    position: absolute; left: var(--sp-4); top: -100px;
    background: var(--ink); color: #fff; padding: var(--sp-2) var(--sp-4);
    border-radius: var(--r-sm); z-index: var(--z-overlay);
    transition: top var(--dur-2) var(--ease-out);
}
.skip-link:focus { top: var(--sp-4); }

/* ---- Scroll reveal (progressive enhancement) ---- */
.reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity var(--dur-4) var(--ease-out), transform var(--dur-4) var(--ease-out);
    will-change: opacity, transform;
}
.reveal.is-visible { opacity: 1; transform: none; }

@media (min-width: 640px)  { .sm\:cols-2 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 900px)  { .cols-4 { grid-template-columns: repeat(2, 1fr); } .cols-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px)  { .cols-2, .cols-3, .cols-4 { grid-template-columns: 1fr; } }

/* ---- Respect reduced motion ---- */
@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;
    }
    .reveal { opacity: 1; transform: none; }
}