/* ============================================================
   Portfolio UI kit — page layout & section scaffolding.
   Primitives (Button, Card, Tag, …) come from the bundle;
   this file only handles page composition + a few section motifs.
   ============================================================ */

.pf { background: var(--surface-page); color: var(--text-body); overflow-x: hidden; }

/* ---- Custom cursor dot (desktop, fancy) ---- */
.pf-cursor { position: fixed; top: 0; left: 0; width: 11px; height: 11px; border-radius: 50%;
  background: var(--ink-0); pointer-events: none; z-index: 9999; transform: translate(-50%, -50%);
  transition: width .25s var(--ease-out-expo), height .25s var(--ease-out-expo),
              background-color .25s var(--ease-out-expo), opacity .3s; mix-blend-mode: difference; }
.pf-cursor.is-hover { width: 46px; height: 46px; background: var(--ink-0); }
@media (hover: none) { .pf-cursor { display: none; } }

/* ============================ NAV ============================ */
.pf-nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 22px var(--gutter); transition: padding .4s var(--ease-out-expo),
  background-color .4s var(--ease-out-expo), border-color .4s var(--ease-out-expo);
  border-bottom: 1px solid transparent; }
.pf-nav.is-stuck { padding: 13px var(--gutter); background: color-mix(in oklab, var(--paper) 82%, transparent);
  backdrop-filter: blur(14px) saturate(1.2); -webkit-backdrop-filter: blur(14px) saturate(1.2);
  border-bottom-color: var(--border-subtle); }
.pf-brand { display: flex; align-items: center; gap: 11px; font-family: var(--font-display);
  font-weight: 600; font-size: 17px; letter-spacing: -.03em; color: var(--text-strong); cursor: pointer; }
.pf-brand__mark { width: 30px; height: 30px; background: var(--ink-950); color: var(--ink-0);
  border-radius: var(--radius-sm); display: grid; place-items: center; font-size: 14px; font-weight: 600;
  letter-spacing: -.04em; transition: transform .4s var(--ease-out-back); }
.pf-brand:hover .pf-brand__mark { transform: rotate(-8deg) scale(1.05); }
.pf-navlinks { display: flex; align-items: center; gap: 4px; }
.pf-navlink { position: relative; font-family: var(--font-mono); font-size: 12px; font-weight: 500;
  letter-spacing: .04em; text-transform: uppercase; color: var(--text-muted); padding: 9px 14px; cursor: pointer;
  transition: color .25s var(--ease-out-quart); }
.pf-navlink__idx { color: var(--text-faint); margin-right: 6px; font-size: 10px; }
.pf-navlink:hover, .pf-navlink.is-active { color: var(--text-strong); }
.pf-navlink::after { content: ""; position: absolute; left: 14px; right: 14px; bottom: 4px; height: 1.5px;
  background: var(--ink-950); transform: scaleX(0); transform-origin: left; transition: transform .35s var(--ease-out-expo); }
.pf-navlink:hover::after, .pf-navlink.is-active::after { transform: scaleX(1); }
.pf-nav__cta { display: flex; align-items: center; gap: 16px; }
.pf-burger { display: none; }

/* ============================ HERO ============================ */
.pf-hero { position: relative; min-height: 100svh; display: flex; flex-direction: column;
  justify-content: center; padding: 140px var(--gutter) 0; }
.pf-hero__eyebrow { display: flex; align-items: center; gap: 14px; margin-bottom: 30px; }
.pf-hero__avatar { width: 60px; height: 60px; border-radius: 50%; overflow: hidden; flex: 0 0 auto;
  border: 1px solid var(--border-subtle); }
.pf-hero__avatar img { width: 100%; height: 100%; object-fit: cover; }
.pf-hero__meta { font-family: var(--font-mono); font-size: 12px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--text-muted); line-height: 1.6; }
.pf-hero__meta b { color: var(--text-strong); font-weight: 600; }
.pf-hero__title { font-family: var(--font-display); font-weight: 500; font-size: var(--text-5xl);
  line-height: .92; letter-spacing: -.04em; color: var(--text-strong); margin: 0; }
.pf-hero__title .ln { display: block; overflow: hidden; }
.pf-hero__title .ln > span { display: block; }
.pf-hero__title em { font-style: normal; color: transparent; -webkit-text-stroke: 1.4px var(--ink-950); }
.pf-hero__lead { display: flex; align-items: flex-end; justify-content: space-between; gap: 40px;
  flex-wrap: wrap; margin-top: 42px; padding-right: 76px; }
.pf-hero__sub { font-family: var(--font-body); font-size: var(--text-md); line-height: 1.55; color: var(--text-body);
  max-width: 42ch; }
.pf-hero__actions { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }
.pf-hero__strip { margin-top: clamp(40px, 7vh, 90px); border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle); padding: 18px 0; margin-inline: calc(var(--gutter) * -1); }
.pf-scrollcue { position: absolute; right: var(--gutter); bottom: 130px; display: flex; flex-direction: column;
  align-items: center; gap: 10px; font-family: var(--font-mono); font-size: 10px; letter-spacing: .2em;
  text-transform: uppercase; color: var(--text-faint); writing-mode: vertical-rl; }
.pf-scrollcue svg { width: 16px; height: 16px; writing-mode: horizontal-tb; animation: ds-pulse 1.8s var(--ease-in-out-quart) infinite; }

/* ============================ SECTION ============================ */
.pf-section { padding: var(--section-y) var(--gutter); position: relative; }
.pf-section--alt { background: var(--surface-sunken); border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle); }
.pf-section--invert { background: var(--surface-invert); color: var(--text-on-dark); }
.pf-head { display: flex; align-items: baseline; gap: 18px; margin-bottom: 54px; flex-wrap: wrap; }
.pf-head__title { font-family: var(--font-display); font-weight: 500; font-size: var(--text-3xl);
  letter-spacing: -.03em; color: var(--text-strong); margin: 0; line-height: 1; }
.pf-section--invert .pf-head__title { color: var(--text-on-dark-strong); }

/* ---- About ---- */
.pf-about { display: grid; grid-template-columns: 1fr 1.3fr; gap: clamp(40px, 7vw, 110px); align-items: start; }
.pf-about__lead { font-family: var(--font-display); font-weight: 400; font-size: var(--text-xl);
  line-height: 1.3; letter-spacing: -.02em; color: var(--text-strong); margin: 0 0 28px; text-wrap: balance; }
.pf-about__body { font-size: var(--text-md); line-height: 1.7; color: var(--text-body); max-width: 56ch; }
.pf-about__body p + p { margin-top: 18px; }
.pf-about__facts { display: grid; gap: 0; margin-top: 40px; border-top: 1px solid var(--border-subtle); }
.pf-fact { display: flex; justify-content: space-between; gap: 20px; padding: 15px 0;
  border-bottom: 1px solid var(--border-subtle); }
.pf-fact__k { font-family: var(--font-mono); font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--text-faint); }
.pf-fact__v { font-family: var(--font-mono); font-size: 13px; color: var(--text-strong); text-align: right; }

/* ---- Build (What I build) ---- */
.pf-build { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; }
.pf-build .pf-buildcard { height: 100%; display: flex; flex-direction: column; gap: 14px; }
.pf-buildcard__title { font-family: var(--font-display); font-weight: 500; font-size: var(--text-xl);
  letter-spacing: -.02em; color: var(--text-strong); line-height: 1.05; }
.pf-buildcard__desc { font-size: var(--text-base); line-height: 1.6; color: var(--text-muted); }
.pf-buildcard__tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto; padding-top: 6px; }

/* ---- Work ---- */
.pf-work { display: flex; flex-direction: column; }
.pf-proj { display: grid; grid-template-columns: 80px 1.1fr 1fr; gap: 30px; align-items: center;
  padding: 38px 0; border-top: 1px solid var(--border-subtle); position: relative; cursor: pointer; }
.pf-proj:last-child { border-bottom: 1px solid var(--border-subtle); }
.pf-proj__idx { font-family: var(--font-mono); font-size: 13px; color: var(--text-faint); align-self: flex-start; padding-top: 6px; }
.pf-proj__main { display: flex; flex-direction: column; gap: 16px; }
.pf-proj__title { font-family: var(--font-display); font-weight: 500; font-size: clamp(28px, 3.5vw, 46px);
  letter-spacing: -.03em; color: var(--text-strong); line-height: 1; display: flex; align-items: center; gap: 16px;
  transition: transform .4s var(--ease-out-expo); }
.pf-proj__title svg { width: .7em; height: .7em; opacity: 0; transform: translate(-8px, 4px);
  transition: opacity .4s var(--ease-out-expo), transform .4s var(--ease-out-expo); }
.pf-proj:hover .pf-proj__title { transform: translateX(10px); }
.pf-proj:hover .pf-proj__title svg { opacity: 1; transform: translate(0,0); }
.pf-proj__desc { font-size: var(--text-base); line-height: 1.6; color: var(--text-muted); max-width: 46ch; }
.pf-proj__tags { display: flex; flex-wrap: wrap; gap: 8px; }
.pf-proj__media { aspect-ratio: 16/10; border-radius: var(--radius-md); overflow: hidden;
  background: var(--surface-sunken); border: 1px solid var(--border-subtle); }
.pf-proj__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease-out-expo); }
.pf-proj:hover .pf-proj__media img { transform: scale(1.04); }
.pf-proj__wip { position: absolute; top: 38px; right: 0; font-family: var(--font-mono); font-size: 10px;
  letter-spacing: .14em; text-transform: uppercase; color: var(--text-faint); }

/* ---- Skills ---- */
.pf-skillgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 0;
  border-top: 1px solid var(--border-on-dark); }
.pf-skill { padding: 24px 6px; border-bottom: 1px solid var(--border-on-dark); display: flex; align-items: baseline; gap: 12px;
  font-family: var(--font-display); font-size: var(--text-lg); color: var(--text-on-dark-strong); letter-spacing: -.02em;
  transition: color .3s var(--ease-out-quart), padding-left .35s var(--ease-out-expo); cursor: default; }
.pf-skill:hover { padding-left: 16px; }
.pf-skill__n { font-family: var(--font-mono); font-size: 10px; color: var(--ink-500); letter-spacing: .1em; }

/* ---- Contact ---- */
.pf-contact { display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(40px, 8vw, 120px); align-items: start; }
.pf-contact__title { font-family: var(--font-display); font-weight: 500; font-size: var(--text-4xl);
  line-height: .95; letter-spacing: -.04em; color: var(--text-on-dark-strong); margin: 0 0 30px; }
.pf-contact__sub { font-size: var(--text-md); line-height: 1.6; color: var(--text-on-dark-muted); max-width: 40ch; margin-bottom: 36px; }
.pf-contact__direct { display: flex; flex-direction: column; gap: 14px; }
.pf-contact__link { display: inline-flex; align-items: center; gap: 12px; font-family: var(--font-mono);
  font-size: 14px; color: var(--text-on-dark); width: fit-content; transition: gap .3s var(--ease-out-expo), color .3s; }
.pf-contact__link svg { width: 17px; height: 17px; }
.pf-contact__link:hover { color: var(--text-on-dark-strong); gap: 18px; }
.pf-form { display: flex; flex-direction: column; gap: 22px; }
.pf-form__sent { display: flex; align-items: center; gap: 12px; font-family: var(--font-mono); font-size: 13px;
  color: var(--text-on-dark-strong); padding: 16px 0; border-top: 1px solid var(--border-on-dark); }
.pf-form__sent svg { width: 18px; height: 18px; }

/* ---- Footer ---- */
.pf-footer { background: var(--surface-invert); color: var(--text-on-dark); padding: 60px var(--gutter) 40px;
  border-top: 1px solid var(--border-on-dark); }
.pf-footer__row { display: flex; justify-content: space-between; align-items: flex-end; gap: 30px; flex-wrap: wrap; }
.pf-footer__big { font-family: var(--font-display); font-weight: 500; font-size: clamp(40px, 8vw, 96px);
  letter-spacing: -.04em; line-height: .9; color: var(--text-on-dark-strong); }
.pf-footer__social { display: flex; gap: 12px; }
.pf-footer__meta { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; margin-top: 50px;
  padding-top: 22px; border-top: 1px solid var(--border-on-dark); font-family: var(--font-mono); font-size: 11px;
  letter-spacing: .06em; color: var(--ink-500); text-transform: uppercase; }

/* ---- Mobile drawer ---- */
.pf-drawer { position: fixed; inset: 0; z-index: 200; background: var(--surface-invert); color: var(--text-on-dark);
  display: flex; flex-direction: column; padding: 26px var(--gutter); transform: translateY(-100%);
  visibility: hidden; pointer-events: none;
  transition: transform .6s var(--ease-in-out-quart), visibility 0s linear .6s; }
.pf-drawer.is-open { transform: translateY(0); visibility: visible; pointer-events: auto;
  transition: transform .6s var(--ease-in-out-quart), visibility 0s; }
.pf-drawer__top { display: flex; justify-content: space-between; align-items: center; }
.pf-drawer__links { margin-top: auto; margin-bottom: auto; display: flex; flex-direction: column; gap: 6px; }
.pf-drawer__link { font-family: var(--font-display); font-weight: 500; font-size: clamp(40px, 13vw, 80px);
  letter-spacing: -.04em; color: var(--text-on-dark-strong); display: flex; align-items: baseline; gap: 16px; }
.pf-drawer__link span { font-family: var(--font-mono); font-size: 13px; color: var(--ink-500); letter-spacing: .1em; }

@media (max-width: 900px) {
  .pf-navlinks, .pf-nav__cta .aa-btn { display: none; }
  .pf-burger { display: inline-flex; }
  .pf-hero__lead { padding-right: 0; }
  .pf-scrollcue { display: none; }
  .pf-about, .pf-contact { grid-template-columns: 1fr; }
  .pf-proj { grid-template-columns: 50px 1fr; }
  .pf-proj__media { grid-column: 1 / -1; order: 3; }
  .pf-hero__title { font-size: clamp(3rem, 15vw, 6rem); }
}