/* ==========================================================================
   SECTIONS — hero, about, projects rail, skills field, blog, contact
   ========================================================================== */

/* ==========================================================================
   HERO
   ========================================================================== */

.hero {
    min-height: 100svh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-top: clamp(7rem, 5rem + 8vw, 10rem);
    padding-bottom: var(--sp-6);
}

.hero__grid {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: clamp(2rem, 1rem + 4vw, 5rem);
    align-items: center;
    flex: 1;
}

.hero__title {
    font-size: var(--fs-display);
    font-weight: 700;
    line-height: var(--lh-tight);
    letter-spacing: -0.045em;
    margin: var(--sp-5) 0 var(--sp-6);
}

/* The masking happens on .split-mask (inserted by split.js), which pads for
   descenders. A second overflow:hidden here would clip them. */
.hero__title .line { display: block; }

.line--accent { color: var(--accent-ink); font-style: italic; }

.hero__intro {
    max-width: 44ch;
    font-size: var(--fs-md);
    color: var(--text-dim);
}

.hero__cta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-4);
    margin-top: var(--sp-6);
}

/* ---------- Portrait ---------- */
.hero__portrait { display: flex; justify-content: flex-end; }

.portrait {
    position: relative;
    width: min(38vw, 520px);
    max-width: 100%;
}

.portrait__frame {
    position: relative;
    aspect-ratio: 3 / 4;
    overflow: hidden;
    border-radius: var(--r-lg);
    background: var(--bg-elev-2);
    box-shadow: var(--shadow-lg);
    /* --pr is written by the scroll driver (0 → 1 through the hero) */
    transform: translateY(calc(var(--pr, 0) * -3.5rem)) scale(calc(1 + var(--pr, 0) * 0.04));
}

.portrait__frame::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    border: 1px solid var(--line-loud);
    mix-blend-mode: overlay;
    pointer-events: none;
}

.portrait img {
    width: 100%; height: 100%;
    object-fit: cover;
    object-position: 50% 22%;
    filter: saturate(0.92) contrast(1.04);
    transform: scale(calc(1.06 - var(--pr, 0) * 0.06));
    transition: filter var(--dur-slow) var(--ease-out);
}

.portrait:hover img { filter: saturate(1) contrast(1); }

.portrait__caption {
    display: flex;
    justify-content: space-between;
    gap: var(--sp-3);
    margin-top: var(--sp-3);
    color: var(--text-dim);
}
.portrait__caption-dim { color: var(--text-faint); }

/* ---------- Hero footer ---------- */
.hero__foot {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: var(--sp-6);
    margin-top: clamp(2rem, 1rem + 4vw, 4rem);
    padding-top: var(--sp-5);
    border-top: 1px solid var(--line-soft);
}

.scroll-cue {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-3);
    color: var(--text-faint);
    transition: color var(--dur-fast) var(--ease-out);
}
.scroll-cue:hover { color: var(--accent-ink); }

.scroll-cue__rail {
    position: relative;
    width: 1px; height: 2.6rem;
    background: var(--line);
    overflow: hidden;
}
.scroll-cue__dot {
    position: absolute;
    inset-inline: -1px;
    height: 0.9rem;
    background: var(--accent-fill);
    animation: cueTravel 2.1s var(--ease-inout) infinite;
}
@keyframes cueTravel {
    0%   { transform: translateY(-100%); }
    60%  { transform: translateY(200%); }
    100% { transform: translateY(200%); }
}

.hero__stats {
    display: flex;
    flex-wrap: wrap;
    gap: clamp(1.25rem, 0.5rem + 2.5vw, 3rem);
    text-align: right;
}
.hero__stats li {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    color: var(--text-faint);
}
.hero__stat-n {
    font-family: var(--font-sans);
    font-size: var(--fs-lg);
    font-weight: 650;
    letter-spacing: var(--tracking-tight);
    color: var(--text);
    font-variant-numeric: tabular-nums;
}

/* ==========================================================================
   ABOUT
   ========================================================================== */

.about__body {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: clamp(2rem, 1rem + 5vw, 6rem);
    align-items: start;
}

.about__prose { display: flex; flex-direction: column; gap: var(--sp-5); color: var(--text-dim); }

.about__lede {
    font-size: var(--fs-lg);
    line-height: 1.4;
    color: var(--text);
    letter-spacing: -0.015em;
}

.about__facts {
    display: flex;
    flex-direction: column;
    border-top: 1px solid var(--line);
}

.about__fact {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: var(--sp-4);
    padding: var(--sp-4) 0;
    border-bottom: 1px solid var(--line-soft);
}
.about__fact dt { color: var(--text-faint); }
.about__fact dd {
    color: var(--text);
    text-align: right;
    text-transform: none;
    letter-spacing: 0.01em;
}

.about__links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
    gap: var(--sp-4);
    margin-top: clamp(3rem, 2rem + 3vw, 5rem);
}

.linkcard {
    position: relative;
    display: grid;
    grid-template-columns: auto 1fr auto;
    grid-template-areas: 'icon label arrow' 'icon meta arrow';
    align-items: center;
    gap: 0 var(--sp-4);
    padding: var(--sp-5);
    border: 1px solid var(--line);
    border-radius: var(--r-md);
    background: var(--bg-elev);
    overflow: hidden;
    transition: border-color var(--dur-fast) var(--ease-out),
                transform var(--dur-mid) var(--ease-out);
}
.linkcard::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--accent-soft);
    opacity: 0;
    transition: opacity var(--dur-mid) var(--ease-out);
}
.linkcard > * { position: relative; }
.linkcard:hover { border-color: var(--accent-fill); transform: translateY(-3px); }
.linkcard:hover::before { opacity: 1; }

.linkcard__icon { grid-area: icon; width: 1.4rem; height: 1.4rem; color: var(--text-dim); }
.linkcard:hover .linkcard__icon { color: var(--accent-ink); }
.linkcard__label { grid-area: label; font-weight: 600; font-size: var(--fs-sm); }
.linkcard__meta  { grid-area: meta; color: var(--text-faint); text-transform: none; letter-spacing: 0.02em; }
.linkcard__arrow {
    grid-area: arrow;
    width: 1rem; height: 1rem;
    color: var(--text-faint);
    transition: transform var(--dur-mid) var(--ease-mech), color var(--dur-fast) var(--ease-out);
}
.linkcard:hover .linkcard__arrow { transform: translate(3px, -3px); color: var(--accent-ink); }

/* ==========================================================================
   PROJECTS — pinned horizontal rail
   ========================================================================== */

.projects { max-width: none; padding-inline: 0; }

/* The section itself is full-bleed so the rail can span the viewport, which
   means the heading has to rebuild the normal container: same max-width and
   gutter as every other section, so it starts on the same left edge as
   About and Stack. Constraining the head itself would centre it instead. */
.projects .section__head { max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }
.projects .section__title { max-width: var(--maxw-prose); }

.rail { position: relative; }

.rail__stage {
    position: sticky;
    top: 0;
    min-height: 100svh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.rail__track {
    display: flex;
    gap: clamp(1.25rem, 0.5rem + 2vw, 2.5rem);
    padding-inline: var(--gutter);
    will-change: transform;
    /* --rail is written by the scroll driver in px */
    transform: translate3d(calc(var(--rail, 0) * -1px), 0, 0);
}

.rail__hud {
    position: absolute;
    left: 50%;
    bottom: clamp(1.5rem, 4vh, 3rem);
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    color: var(--text-faint);
    pointer-events: none;
}
.rail__hud-bar {
    width: clamp(5rem, 18vw, 11rem);
    height: 2px;
    background: var(--line);
    border-radius: var(--r-full);
    overflow: hidden;
}
.rail__hud-fill {
    display: block;
    height: 100%;
    width: var(--rail-pct, 0%);
    background: var(--accent-fill);
    border-radius: inherit;
}

/* ---------- Project card ---------- */
.pcard {
    flex: 0 0 auto;
    width: clamp(17rem, 27vw, 25rem);
    display: flex;
    flex-direction: column;
    background: var(--bg-elev);
    border: 1px solid var(--line);
    border-radius: var(--r-lg);
    overflow: hidden;
    transition: border-color var(--dur-mid) var(--ease-out),
                transform var(--dur-mid) var(--ease-out);
}
.pcard:hover { border-color: var(--line-loud); transform: translateY(-6px); }

.pcard__media {
    position: relative;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background: var(--bg-elev-2);
}

.pcard__img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform var(--dur-xslow) var(--ease-out),
                filter var(--dur-slow) var(--ease-out);
    filter: saturate(0.85);
}
.pcard:hover .pcard__img { transform: scale(1.06); filter: saturate(1); }

.pcard__img--empty {
    display: grid;
    place-items: center;
    color: var(--text-faint);
    background:
        repeating-linear-gradient(45deg, var(--bg-inset) 0 10px, transparent 10px 20px);
}
.pcard__img--empty .mono { font-size: var(--fs-xl); letter-spacing: 0.1em; }

.pcard__index {
    position: absolute;
    top: var(--sp-4); left: var(--sp-4);
    padding: 0.25rem 0.5rem;
    border-radius: var(--r-sm);
    background: color-mix(in srgb, var(--bg) 78%, transparent);
    backdrop-filter: blur(6px);
    color: var(--text-dim);
}

.pcard__status {
    position: absolute;
    top: var(--sp-4); right: var(--sp-4);
    display: inline-flex;
    align-items: center;
    gap: var(--sp-2);
    padding: 0.3rem 0.65rem;
    border-radius: var(--r-full);
    background: color-mix(in srgb, var(--bg) 78%, transparent);
    backdrop-filter: blur(6px);
    font-family: var(--font-mono);
    font-size: 0.625rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-dim);
}
.pcard__status-dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--accent-fill);
    animation: pulse 2.4s var(--ease-out) infinite;
}

.pcard__body {
    display: flex;
    flex-direction: column;
    gap: var(--sp-3);
    padding: var(--sp-5);
    flex: 1;
}

.pcard__title {
    font-size: var(--fs-lg);
    transition: color var(--dur-fast) var(--ease-out);
}
.pcard:hover .pcard__title { color: var(--accent-ink); }

.pcard__desc {
    font-size: var(--fs-sm);
    color: var(--text-dim);
    display: -webkit-box;
    -webkit-line-clamp: 4;
    line-clamp: 4;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.pcard__links { display: flex; flex-wrap: wrap; gap: var(--sp-2); margin-top: auto; padding-top: var(--sp-3); }

/* ---------- Rail degrades to a grid when pinning is off ---------- */
/* display must drop back to block: as a flex item the grid track sizes to
   max-content, so auto-fill resolves to one column per card and overflows
   the viewport instead of wrapping. */
.rail.is-static .rail__stage {
    position: static;
    display: block;
    min-height: 0;
    overflow: visible;
}
.rail.is-static .rail__track {
    transform: none;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(20rem, 100%), 1fr));
    max-width: var(--maxw);
    margin-inline: auto;
}
.rail.is-static .pcard { width: auto; }
.rail.is-static .rail__hud { display: none; }

/* ==========================================================================
   SKILLS — cursor-reactive field
   ========================================================================== */

.field {
    display: flex;
    flex-wrap: wrap;
    gap: clamp(0.6rem, 0.3rem + 1vw, 1rem);
    justify-content: center;
    max-width: 62rem;
    margin-inline: auto;
    padding-block: var(--sp-5);
}

.chip {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-3);
    padding: 0.7rem 1.15rem;
    border: 1px solid var(--line);
    border-radius: var(--r-full);
    background: var(--bg-elev);
    font-size: var(--fs-sm);
    white-space: nowrap;
    cursor: default;
    /* The resting transform lives in motion.css, where --dx/--dy/--s
       (written by the skills field module) combine with the reveal state. */
    transition: border-color var(--dur-fast) var(--ease-out),
                background-color var(--dur-fast) var(--ease-out),
                box-shadow var(--dur-mid) var(--ease-out);
    will-change: transform;
}

.chip:hover {
    border-color: var(--accent-fill);
    background: var(--bg-elev-2);
    box-shadow: var(--shadow-md);
}

.chip__icon {
    width: 1.35rem; height: 1.35rem;
    object-fit: contain;
    transition: transform var(--dur-mid) var(--ease-mech);
}
.chip:hover .chip__icon { transform: rotate(-10deg) scale(1.12); }

.chip__name { font-weight: 500; }

.field__empty { color: var(--text-faint); text-align: center; }

/* ==========================================================================
   BLOG
   ========================================================================== */

.blog__grid {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    gap: clamp(2rem, 1rem + 5vw, 6rem);
    align-items: center;
}

.blog__desc {
    margin-top: var(--sp-5);
    max-width: 46ch;
    font-size: var(--fs-md);
    color: var(--text-dim);
}

.quote {
    position: relative;
    margin: var(--sp-7) 0;
    padding: var(--sp-5) 0 var(--sp-5) var(--sp-6);
    border-left: 2px solid var(--accent-fill);
}

.quote blockquote p {
    font-size: var(--fs-lg);
    line-height: 1.35;
    letter-spacing: -0.02em;
    font-style: italic;
    color: var(--text);
    transition: opacity var(--dur-mid) var(--ease-out),
                transform var(--dur-mid) var(--ease-out);
}

.quote figcaption {
    margin-top: var(--sp-3);
    color: var(--text-faint);
    transition: opacity var(--dur-mid) var(--ease-out);
}

.quote.is-swapping blockquote p,
.quote.is-swapping figcaption { opacity: 0; transform: translateY(6px); }

.blog__cta { margin-top: var(--sp-4); }
.blog__cta[aria-disabled='true'] { opacity: 0.6; }

.blog__art img { border-radius: var(--r-lg); }

/* ==========================================================================
   CONTACT
   ========================================================================== */

.contact__grid {
    display: grid;
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
    gap: clamp(2rem, 1rem + 5vw, 5rem);
    align-items: start;
}

.contact__aside {
    display: flex;
    flex-direction: column;
    gap: var(--sp-6);
    padding: var(--sp-6);
    border: 1px solid var(--line);
    border-radius: var(--r-lg);
    background: var(--bg-elev);
}

.contact__k { color: var(--text-faint); margin-bottom: var(--sp-2); }

.contact__v { font-size: var(--fs-sm); color: var(--text); }
a.contact__v { transition: color var(--dur-fast) var(--ease-out); }
a.contact__v:hover { color: var(--accent-ink); }

.contact__social { display: flex; gap: var(--sp-3); }
.contact__social a {
    display: grid;
    place-items: center;
    width: 2.5rem; height: 2.5rem;
    border: 1px solid var(--line);
    border-radius: var(--r-full);
    color: var(--text-dim);
    transition: color var(--dur-fast) var(--ease-out),
                border-color var(--dur-fast) var(--ease-out),
                transform var(--dur-fast) var(--ease-out);
}
.contact__social a svg { width: 1.05rem; height: 1.05rem; }
.contact__social a:hover {
    color: var(--accent-ink);
    border-color: var(--accent-fill);
    transform: translateY(-3px);
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */

@media (max-width: 1040px) {
    .hero__grid { grid-template-columns: 1fr; gap: var(--sp-7); }
    /* Text before portrait: leading a phone screen with a tall photo pushes
       the name and role below the fold. DOM order already reads
       lead -> portrait, so no `order` override is needed here. */
    .hero__portrait { justify-content: flex-start; }
    .portrait { width: min(62vw, 340px); }
    .about__body { grid-template-columns: 1fr; }
    .blog__grid,
    .contact__grid { grid-template-columns: 1fr; }
    .blog__art { max-width: 22rem; margin-inline: auto; }
}

@media (max-width: 720px) {
    .hero__foot { flex-direction: column; align-items: flex-start; gap: var(--sp-5); }
    .hero__stats { text-align: left; width: 100%; justify-content: space-between; }
    .portrait { width: min(78vw, 320px); }
    /* Both caption halves are wide-tracked mono; on a narrow screen they
       collide, so let them stack instead of overlapping. */
    .portrait__caption { flex-wrap: wrap; row-gap: var(--sp-1); }
    .footer__row { flex-direction: column; align-items: flex-start; }
}