/* ============================================================
   cpfischer.com: components
   ============================================================ */

/* ---------- Nav ---------- */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  min-height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.05rem var(--pad);
  color: var(--ink);
  transition: transform var(--t-slow) var(--ease), background var(--t-base) var(--ease), backdrop-filter var(--t-base) var(--ease);
}
.nav--scrolled {
  background: color-mix(in srgb, var(--paper) 80%, transparent);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
}
.nav--invert { color: var(--foot-fg); background: transparent; backdrop-filter: none; -webkit-backdrop-filter: none; }
.nav--hidden { transform: translateY(-110%); }

.nav__mark {
  font-family: var(--font-display);
  font-weight: var(--w-display);
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  color: var(--ink);
  display: inline-flex;
  align-items: baseline;
  gap: 0.4ch;
}
.nav--invert .nav__mark { color: var(--foot-fg); }
.nav__mark .dot { color: var(--accent); }

.nav__links { display: flex; gap: clamp(1rem, 2.5vw, 2.5rem); align-items: center; }
.nav__links a {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: var(--t-micro);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  position: relative;
  padding: 0.5rem 0;
}
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t-fast) var(--ease);
}
.nav__links a:hover::after,
.nav__links a:focus-visible::after { transform: scaleX(1); }

/* hamburger toggle (mobile only) */
.nav__toggle { display: none; }

@media (max-width: 760px) {
  .nav { padding-block: 0.5rem; }

  .nav__toggle {
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    margin-right: -0.5rem;
    color: var(--ink);
  }
  .nav--invert .nav__toggle { color: var(--foot-fg); }
  .nav--open .nav__toggle { color: var(--ink); }
  .nav__toggle-bar {
    display: block;
    width: 22px;
    height: 2px;
    background: currentColor;
    transition: transform var(--t-base) var(--ease), opacity var(--t-fast) var(--ease);
  }
  .nav--open .nav__toggle-bar:nth-child(1) { transform: translateY(3.5px) rotate(45deg); }
  .nav--open .nav__toggle-bar:nth-child(2) { transform: translateY(-3.5px) rotate(-45deg); }

  /* keep the bar solid and legible while the menu is open */
  .nav--open { background: var(--paper); }
  .nav--open .nav__mark { color: var(--ink); }

  .nav__links {
    position: fixed;
    inset: var(--nav-h) 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--paper);
    border-top: 1px solid var(--hairline);
    border-bottom: 1px solid var(--hairline);
    box-shadow: var(--shadow-panel);
    padding: 0.25rem var(--pad) 1.25rem;
    transform: translateY(-10px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity var(--t-base) var(--ease), transform var(--t-base) var(--ease), visibility 0s linear 0.25s;
  }
  .nav--open .nav__links {
    transform: none;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transition: opacity var(--t-base) var(--ease), transform var(--t-base) var(--ease), visibility 0s;
  }
  .nav__links a {
    color: var(--ink);
    width: 100%;
    padding: 1rem 0;
    border-bottom: 1px solid var(--hairline);
    font-size: 0.95rem;
    letter-spacing: 0.04em;
  }
  .nav__links a:last-child { border-bottom: 0; }
  .nav__links a::after { display: none; }
  .nav__links .num { color: var(--accent); margin-right: 0.7ch; }
}

/* ---------- CTA buttons (text + arrow, animated underline) ---------- */
.c-button {
  display: inline-flex;
  align-items: baseline;
  gap: 0.55ch;
  min-height: 44px;
  padding: 0.85rem 0;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: var(--t-micro);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink);
  position: relative;
}
.c-button .arr { color: var(--accent); transition: transform var(--t-base) var(--ease); }
.c-button::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0.55rem;
  height: 1px; width: 100%;
  background: currentColor;
  transform-origin: left;
  transition: transform var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}
.c-button--primary::after { background: var(--ink); transform: scaleX(1); }
.c-button--secondary::after { transform: scaleX(0); }
.c-button:hover, .c-button:focus-visible { color: var(--accent); }
.c-button:hover::after, .c-button:focus-visible::after { background: var(--accent); transform: scaleX(1); }
.c-button:hover .arr, .c-button:focus-visible .arr { transform: translate(2px, 0); }
.c-button:active { transform: translateY(1px); }

/* ---------- Placeholders: diagonal hatch, grayscale, mono caption ---------- */
.ph {
  position: relative;
  background: repeating-linear-gradient(
    135deg,
    var(--paper-soft),
    var(--paper-soft) 11px,
    var(--ph-stripe) 11px,
    var(--ph-stripe) 12px
  );
  overflow: hidden;
  display: grid;
  place-items: center;
  filter: grayscale(1);
  transition: filter var(--t-base) var(--ease), transform var(--t-slow) var(--ease);
}
.ph[data-cap]::after {
  content: attr(data-cap);
  font-family: var(--font-body);
  font-weight: 500;
  font-size: var(--t-micro);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  background: var(--paper);
  padding: 0.4em 0.7em;
  border: 1px solid var(--hairline);
}
.ph img { width: 100%; height: 100%; object-fit: cover; }
.ph--4x5  { aspect-ratio: 4 / 5; }
.ph--16x9 { aspect-ratio: 16 / 9; }
.ph--1x1  { aspect-ratio: 1 / 1; }
.ph--3x4  { aspect-ratio: 3 / 4; }

/* a real image isn't a placeholder: drop the hatch ground behind it */
.ph:has(img) { background: var(--paper-soft); }

/* "contain" fit: show the whole image inside the frame, matted on paper-soft
   (for diagrams, logos, and artwork that shouldn't be cropped to fill) */
.ph--contain { padding: clamp(0.6rem, 1.6vw, 1.25rem); }
.ph--contain img { object-fit: contain; object-position: center; }

/* Zoomable image (opens the lightbox): button reset + zoom affordance.
   The button IS the .ph, so it keeps the grid/aspect-ratio rules above. */
button.ph--zoom { width: 100%; cursor: zoom-in; }
.ph--zoom img { transition: transform var(--t-slow) var(--ease); }
.ph--zoom:hover img,
.ph--zoom:focus-visible img { transform: scale(1.04); }

/* ---------- Tags ---------- */
.tag {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: var(--t-micro);
  letter-spacing: 0.04em;
  color: var(--ink-soft);
  border: 1px solid var(--hairline);
  padding: 0.25em 0.7em;
  border-radius: 100px;
}

/* ---------- Selected work (asymmetric rows) ---------- */
.work__item {
  display: block;
  padding-block: clamp(2.25rem, 5vh, 3.5rem);
  border-top: 1px solid var(--hairline);
  color: inherit;
}
.work__list .work__item:last-child { border-bottom: 1px solid var(--hairline); }

.work__row { align-items: start; row-gap: 1.5rem; }
.work__idx { grid-column: 1 / 2; padding-top: 0.6rem; }

.work__body { grid-column: 2 / 7; }
.work__title {
  font-family: var(--font-display);
  font-weight: var(--w-display);
  font-size: var(--t-h3);
  line-height: 1;
  letter-spacing: -0.03em;
  display: inline-flex;
  align-items: baseline;
  gap: 0.5ch;
  margin: 0;
  transition: color var(--t-fast) var(--ease);
}
.work__title .arr {
  font-size: 0.5em;
  color: var(--accent);
  transform: translate(-4px, -2px);
  opacity: 0;
  transition: transform var(--t-base) var(--ease), opacity var(--t-base) var(--ease);
}
.work__tags { margin-top: 1.1rem; display: flex; flex-wrap: wrap; gap: 0.5rem; }
.work__summary {
  margin-top: 1.1rem;
  max-width: 46ch;
  color: var(--ink-soft);
  font-size: var(--t-body);
  line-height: 1.55;
  text-wrap: pretty;
}

.work__meta { grid-column: 7 / 9; padding-top: 0.7rem; }
.work__meta dt { color: var(--ink-soft); font-family: var(--font-body); font-weight: 500; font-size: var(--t-micro); letter-spacing: 0.06em; text-transform: uppercase; }
.work__meta dd { margin-top: 0.2rem; }

.work__fig { grid-column: 9 / 13; }
/* full-bleed (cover) screenshots read best anchored to the top of the page */
.work__fig .ph:not(.ph--contain) img { object-position: top center; }

/* asymmetry: alternate where the image sits */
.work__item:nth-child(even) .work__fig  { grid-column: 1 / 5; }
.work__item:nth-child(even) .work__idx  { grid-column: 5 / 6; }
.work__item:nth-child(even) .work__body { grid-column: 6 / 11; }
.work__item:nth-child(even) .work__meta { grid-column: 11 / 13; }

/* hover (only when the row is an actual link) */
a.work__item:hover .work__title,
a.work__item:focus-visible .work__title { color: var(--accent); }
a.work__item:hover .work__title .arr,
a.work__item:focus-visible .work__title .arr { opacity: 1; transform: translate(0, -2px); }

/* Imagery is desaturated at rest (per DESIGN.md) and resolves to full color on
   interaction, whether the whole row links out or the image opens the lightbox. */
a.work__item:hover .ph,
a.work__item:focus-visible .ph,
.ph--zoom:hover,
.ph--zoom:focus-visible { filter: grayscale(0); }

@media (max-width: 980px) {
  .work__fig, .work__item:nth-child(even) .work__fig  { grid-column: 1 / 13; order: -1; margin-bottom: 1.25rem; }
  .work__idx, .work__item:nth-child(even) .work__idx  { grid-column: 1 / 13; padding-top: 0; }
  .work__body, .work__item:nth-child(even) .work__body { grid-column: 1 / 9; }
  .work__meta, .work__item:nth-child(even) .work__meta { grid-column: 9 / 13; }
}
@media (max-width: 620px) {
  .work__body, .work__meta,
  .work__item:nth-child(even) .work__body,
  .work__item:nth-child(even) .work__meta { grid-column: 1 / 13; }
  .work__meta { display: flex; gap: 2rem; margin-top: 0.5rem; }
}

/* ---------- Capabilities (numbered type rows) ---------- */
.cap__list { grid-column: 1 / 13; }
.cap__row {
  display: grid;
  grid-template-columns: 3rem minmax(0, 1fr);
  gap: clamp(1rem, 3vw, 3rem);
  align-items: baseline;
  padding-block: clamp(1.25rem, 3.5vh, 2.25rem);
  border-top: 1px solid var(--hairline);
  transition: padding-left var(--t-base) var(--ease), color var(--t-base) var(--ease);
}
.cap__list .cap__row:last-child { border-bottom: 1px solid var(--hairline); }
.cap__num { font-family: var(--font-body); font-weight: 500; font-size: var(--t-micro); color: var(--accent); font-variant-numeric: tabular-nums; }
.cap__name {
  font-family: var(--font-display);
  font-weight: var(--w-display);
  font-size: clamp(1.6rem, 3.4vw, 2.85rem);
  line-height: 1;
  letter-spacing: -0.025em;
}
.cap__list:hover .cap__row:not(:hover) .cap__name { color: var(--ink-soft); }
.cap__row:hover { padding-left: 0.6rem; }
.cap__row:hover .cap__name { color: var(--accent); }
@media (max-width: 720px) { .cap__row { grid-template-columns: 2rem 1fr; } }

/* ---------- Shops ---------- */
.shops__grid {
  grid-column: 1 / 13;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--hairline);
  border-left: 1px solid var(--hairline);
}
.shops__cell {
  border-right: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  padding: clamp(1.5rem, 4vw, 3rem);
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  min-height: clamp(9rem, 18vw, 14rem);
  justify-content: space-between;
  transition: background var(--t-base) var(--ease), color var(--t-base) var(--ease);
}
.shops__cell .shops__title {
  font-family: var(--font-display);
  font-weight: var(--w-display);
  font-size: clamp(1.6rem, 3.4vw, 2.85rem);
  line-height: 1;
  letter-spacing: -0.025em;
  display: inline-flex;
  align-items: baseline;
  gap: 0.5ch;
}
.shops__cell .arr { font-size: 0.5em; color: var(--accent); opacity: 0; transform: translate(-4px, -2px); transition: opacity var(--t-base) var(--ease), transform var(--t-base) var(--ease); }
.shops__cell .shops__label { font-family: var(--font-body); font-size: var(--t-micro); letter-spacing: 0.04em; text-transform: uppercase; color: var(--ink-soft); }
.shops__cell:hover { background: var(--ink); color: var(--paper); }
.shops__cell:hover .shops__label { color: color-mix(in srgb, var(--paper) 70%, var(--ink)); }
.shops__cell:hover .arr { opacity: 1; transform: translate(0, -2px); }
@media (max-width: 620px) { .shops__grid { grid-template-columns: 1fr; } }

/* ---------- Lightbox (image zoom overlay, built by main.js) ---------- */
html.lightbox-lock { overflow: hidden; }

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: clamp(1rem, 4vw, 3rem);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--t-base) var(--ease), visibility 0s linear var(--t-base);
}
.lightbox.is-open {
  opacity: 1;
  visibility: visible;
  transition: opacity var(--t-base) var(--ease);
}

/* always a dark scrim, independent of light/dark theme */
.lightbox__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(14, 14, 15, 0.92);
  -webkit-backdrop-filter: blur(3px);
  backdrop-filter: blur(3px);
}

.lightbox__fig {
  position: relative;
  margin: 0;
  max-width: min(94vw, 1180px);
  max-height: 88vh;
  overflow: auto;
  background: var(--paper-soft);
  box-shadow: var(--shadow-panel);
  transform: translateY(8px) scale(0.99);
  transition: transform var(--t-base) var(--ease);
}
.lightbox.is-open .lightbox__fig { transform: none; }
.lightbox__fig:focus-visible { outline: var(--focus-ring); outline-offset: -3px; }
.lightbox__img { display: block; width: 100%; height: auto; }

.lightbox__close {
  position: fixed;
  top: clamp(0.75rem, 2vw, 1.5rem);
  right: clamp(0.75rem, 2vw, 1.5rem);
  z-index: 1;
  width: 44px; height: 44px;
  display: grid;
  place-items: center;
  font-size: 1.6rem;
  line-height: 1;
  color: #f2f2f2;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 50%;
  transition: background var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}
.lightbox__close:hover,
.lightbox__close:focus-visible { background: var(--accent); color: #0e0e0f; border-color: var(--accent); }

.lightbox__cap {
  position: fixed;
  left: 0; right: 0;
  bottom: clamp(0.5rem, 2vw, 1.25rem);
  padding: 0 clamp(1rem, 8vw, 5rem);
  text-align: center;
  color: rgba(242, 242, 242, 0.82);
  font-family: var(--font-body);
  font-weight: 500;
  font-size: var(--t-micro);
  letter-spacing: 0.04em;
  pointer-events: none;
}

@media (prefers-reduced-motion: reduce) {
  .lightbox { transition: opacity 0.01ms, visibility 0s; }
  .lightbox__fig { transform: none; transition: none; }
}