/* ==========================================================================
   Base — reset, typography, shared primitives
   ========================================================================== */

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

* {
    margin: 0;
}

html {
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
    scroll-padding-top: calc(var(--masthead-h) + 1rem);
}

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

body {
    min-height: 100vh;
    background-color: var(--paper);
    background-image: var(--grain);
    color: var(--ink);
    font-family: var(--font-sans);
    font-size: var(--text-base);
    font-weight: 400;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: clip;
}

h1,
h2,
h3 {
    font-family: var(--font-display);
    font-weight: 400;
    line-height: 1;
    letter-spacing: -0.01em;
    text-wrap: balance;
}

p,
li,
dd {
    text-wrap: pretty;
}

a {
    color: inherit;
}

svg {
    display: block;
}

:where(ul, ol)[class] {
    list-style: none;
    padding: 0;
}

::selection {
    background: var(--signal);
    color: var(--on-signal);
}

:focus-visible {
    outline: 2px solid var(--signal);
    outline-offset: 3px;
    border-radius: var(--radius-sm);
}

/* --- Layout primitives --------------------------------------------------- */

.shell {
    width: min(100% - 2 * var(--gutter), var(--shell-max));
    margin-inline: auto;
}

.grid-12 {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: var(--gutter);
}

/* --- Text primitives ----------------------------------------------------- */

.label {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    font-weight: 400;
    line-height: 1.4;
    letter-spacing: var(--tracking-label);
    text-transform: uppercase;
    color: var(--ink-muted);
}

.fig-label {
    color: var(--signal-ink);
    margin-right: 0.75em;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
    border: 0;
}

.skip-link {
    position: absolute;
    top: 0.75rem;
    left: 0.75rem;
    z-index: 100;
    padding: 0.75rem 1rem;
    background: var(--ink);
    color: var(--paper);
    font-size: var(--text-sm);
    text-decoration: none;
    transform: translateY(-200%);
}

.skip-link:focus-visible {
    transform: none;
}

/* --- Icons ----------------------------------------------------------------- */

.sprite {
    position: absolute;
    width: 0;
    height: 0;
    overflow: hidden;
}

.icon {
    display: inline-block;
    width: 1.1em;
    height: 1.1em;
    flex-shrink: 0;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.6;
    stroke-linecap: round;
    stroke-linejoin: round;
    transition: transform var(--duration-normal) var(--ease-out-expo);
}

/* --- Buttons --------------------------------------------------------------- */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6em;
    padding: 0.9em 1.4em;
    border: 1px solid var(--ink);
    border-radius: var(--radius-pill);
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    font-weight: 500;
    line-height: 1;
    letter-spacing: 0.01em;
    text-decoration: none;
    transition:
        background-color var(--duration-fast) ease,
        border-color var(--duration-fast) ease,
        color var(--duration-fast) ease,
        transform var(--duration-fast) ease;
}

.btn:active {
    transform: translateY(1px);
}

.btn--solid {
    background: var(--ink);
    color: var(--paper);
}

.btn--solid:hover {
    background: var(--signal);
    border-color: var(--signal);
    color: var(--on-signal);
}

.btn--line {
    background: transparent;
    color: var(--ink);
}

.btn--line:hover {
    background: var(--ink);
    color: var(--paper);
}

.btn:hover .icon--ur {
    transform: translate(2px, -2px);
}

/* --- Chips ----------------------------------------------------------------- */

.chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.chips li {
    padding: 0.45em 0.85em;
    border: 1px solid var(--rule);
    border-radius: var(--radius-pill);
    font-size: var(--text-sm);
    line-height: 1.2;
    color: var(--ink-soft);
    transition: border-color var(--duration-normal) ease, color var(--duration-normal) ease;
}

/* --- Scroll reveal (only when JS is running and motion is welcome) -------- */

@media (prefers-reduced-motion: no-preference) {
    .js [data-reveal] {
        opacity: 0;
        transform: translateY(1.5rem);
        transition:
            opacity var(--duration-slow) var(--ease-out-expo),
            transform var(--duration-slow) var(--ease-out-expo),
            border-color var(--duration-normal) ease;
        transition-delay: var(--reveal-delay, 0ms), var(--reveal-delay, 0ms), 0ms;
    }

    .js [data-reveal].is-visible {
        opacity: 1;
        transform: none;
    }

    /* Failsafe: if main.js never runs (blocked, 404, parse error), show
       everything after a short beat instead of leaving it hidden. */
    .js:not(.js-ready) :is([data-reveal], .tenure-bar, .art-bar, .art-row) {
        animation: reveal-failsafe 0s 1.5s forwards;
    }
}

@keyframes reveal-failsafe {
    to {
        opacity: 1;
        transform: none;
    }
}

/* --- Print: show everything, drop chrome ------------------------------------ */

@media print {
    .js [data-reveal] {
        opacity: 1;
        transform: none;
    }

    .masthead,
    .hero-foot,
    .contents {
        display: none;
    }

    .hero {
        min-height: auto;
        padding-top: 0;
    }
}