/* ==========================================================
   Connor Jerzak — cjerzak.github.io
   Main stylesheet
   ========================================================== */

:root {
  color-scheme: light dark;

  --bg: #e8e8e8;
  --bg-veil: rgba(232, 232, 232, 0.72);
  --panel: rgba(255, 255, 255, 0.55);
  --text: #030303;
  --text-muted: rgba(3, 3, 3, 0.72);
  --line: rgba(3, 3, 3, 0.14);
  --shadow: 0 16px 40px rgba(0, 0, 0, 0.18);

  --radius: 18px;
  --radius-lg: 28px;

  --ease: cubic-bezier(0.445, 0.05, 0.55, 0.95);
  --dur: 300ms;

  --container: 1200px;
  --gutter: clamp(16px, 4vw, 56px);
  --gutter-start: calc(var(--gutter) + 28px);

  --display: ui-sans-serif, system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --sans: ui-sans-serif, system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;

  --h1: clamp(2.35rem, 5.4vw, 4.8rem);
  --h2: clamp(1.65rem, 3.4vw, 2.75rem);
  --h3: clamp(1.15rem, 1.8vw, 1.55rem);
  --body: clamp(1rem, 1.2vw, 1.1rem);

  --grid-gap: clamp(14px, 2vw, 24px);
}

html[data-theme="dark"] {
  --bg: #030303;
  --bg-veil: rgba(3, 3, 3, 0.72);
  --panel: rgba(255, 255, 255, 0.06);
  --text: #ffffff;
  --text-muted: rgba(255, 255, 255, 0.72);
  --line: rgba(255, 255, 255, 0.16);
  --shadow: 0 24px 55px rgba(0, 0, 0, 0.52);
}

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

html,
body {
  height: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: var(--body);
  line-height: 1.55;
  letter-spacing: 0.01em;

  opacity: 0;
  transition: opacity var(--dur) var(--ease);
}

body.is-ready {
  opacity: 1;
}

body.is-leaving {
  opacity: 0;
}

body.menu-open {
  overflow: hidden;
}

img,
video {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
  text-decoration-thickness: from-font;
}

::selection {
  background: rgba(3, 3, 3, 0.12);
}

html[data-theme="dark"] ::selection {
  background: rgba(255, 255, 255, 0.30);
}

:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 3px;
}

.skipLink {
  position: absolute;
  left: -999px;
  top: 8px;
  z-index: 9999;
  padding: 10px 12px;
  border-radius: 12px;
  background: var(--text);
  color: var(--bg);
}

.skipLink:focus {
  left: 12px;
}

.container {
  width: min(var(--container), 100%);
  padding-inline-start: var(--gutter-start);
  padding-inline-end: var(--gutter);
  margin-inline: auto;
}

.section {
  padding: clamp(64px, 9vw, 120px) 0;
}

.section--tight {
  padding: clamp(48px, 7vw, 88px) 0;
}

.kicker {
  font-size: 0.88rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.headline {
  font-family: var(--display);
  font-weight: 400;
  line-height: 0.96;
  margin: 0;
}

.headline--h1 {
  font-size: var(--h1);
  letter-spacing: -0.02em;
}

.headline--h2 {
  font-size: var(--h2);
  letter-spacing: -0.02em;
}

@media (max-width: 600px) {
  .headline {
    line-height: 1.1;
  }
}

.lede {
  font-size: clamp(1.05rem, 1.5vw, 1.35rem);
  color: var(--text-muted);
  max-width: 68ch;
  margin: 18px 0 0;
}

.btnRow {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: transparent;
  color: inherit;
  font: inherit;
  line-height: 1;
  cursor: pointer;
  user-select: none;
  transition: transform var(--dur) var(--ease), background var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}

.btn:hover {
  transform: translateY(-1px);
  background: var(--panel);
  text-decoration: none;
}

.btn:active {
  transform: translateY(0);
}

.btn--primary {
  background: var(--text);
  color: var(--bg);
  border-color: transparent;
}

html[data-theme="dark"] .btn--primary {
  background: var(--text);
  color: var(--bg);
}

.btn--ghost {
  background: transparent;
}

.tagRow {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.tag {
  font-size: 0.85rem;
  color: var(--text-muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 10px;
  background: transparent;
}

.modeLight,
.modeDark {
  display: none !important;
}

html:not([data-theme="dark"]) .modeLight {
  display: block !important;
}

html[data-theme="dark"] .modeDark {
  display: block !important;
}

/* =========================
   Header / Navigation
   ========================= */

.siteHeader {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: linear-gradient(to bottom, var(--bg-veil), rgba(0, 0, 0, 0));
  backdrop-filter: blur(8px);
}

.siteHeader__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 14px;
  gap: 14px;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  text-decoration: none;
}

.brand:hover {
  text-decoration: none;
}

.brand__mark {
  width: 34px;
  height: 34px;
  border-radius: 12px;
  background: var(--text);
  color: var(--bg);
  display: grid;
  place-items: center;
  font-family: var(--display);
  letter-spacing: -0.03em;
}

.brand__name {
  font-family: var(--display);
  font-size: 1.15rem;
  letter-spacing: -0.01em;
}

.brand__sub {
  display: none;
  color: var(--text-muted);
  font-size: 0.95rem;
}

@media (min-width: 960px) {
  .brand__sub {
    display: inline;
  }
}

.headerActions {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.iconBtn {
  position: relative;
  isolation: isolate;
  width: 42px;
  height: 42px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: inherit;
  font: inherit;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: transform var(--dur) var(--ease), background var(--dur) var(--ease);
}

.iconBtn:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.7);
}

html[data-theme="dark"] .iconBtn:hover {
  background: rgba(3, 3, 3, 0.7);
}

.iconBtn__icon {
  width: 20px;
  height: 20px;
  display: block;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: 0.9;
}

.iconBtn__icon * {
  vector-effect: non-scaling-stroke;
}

.iconBtn[aria-label]::after {
  content: attr(aria-label);
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  padding: 7px 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text);
  font-size: 0.82rem;
  letter-spacing: 0.01em;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
  backdrop-filter: blur(10px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.14);
}

@media (hover: hover) {
  .iconBtn:hover::after {
    opacity: 1;
    transform: translateY(0);
  }
}

.iconBtn:focus-visible::after {
  opacity: 1;
  transform: translateY(0);
}

.iconBtn__dot {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: currentColor;
  opacity: 0.55;
}

/* Icon states */
.iconBtn[data-sound-toggle] .iconBtn__wave,
.iconBtn[data-sound-toggle] .iconBtn__wave2,
.iconBtn[data-sound-toggle] .iconBtn__slash,
.iconBtn[data-theme-toggle] .iconBtn__sun,
.iconBtn[data-theme-toggle] .iconBtn__moon,
.iconBtn[data-menu-toggle] .iconBtn__menu,
.iconBtn[data-menu-toggle] .iconBtn__close {
  transition: opacity var(--dur) var(--ease);
}

.iconBtn[data-sound-toggle] .iconBtn__slash {
  opacity: 0;
}

.iconBtn[data-sound-toggle][data-sound="off"] .iconBtn__wave,
.iconBtn[data-sound-toggle][data-sound="off"] .iconBtn__wave2 {
  opacity: 0;
}

.iconBtn[data-sound-toggle][data-sound="off"] .iconBtn__slash {
  opacity: 1;
}

.iconBtn[data-theme-toggle] .iconBtn__moon {
  opacity: 0;
}

html[data-theme="dark"] .iconBtn[data-theme-toggle] .iconBtn__sun {
  opacity: 0;
}

html[data-theme="dark"] .iconBtn[data-theme-toggle] .iconBtn__moon {
  opacity: 1;
}

.iconBtn[data-menu-toggle] .iconBtn__close {
  opacity: 0;
}

.iconBtn[data-menu-toggle][aria-expanded="true"] .iconBtn__menu {
  opacity: 0;
}

.iconBtn[data-menu-toggle][aria-expanded="true"] .iconBtn__close {
  opacity: 1;
}

/* State cues */
.iconBtn[data-sound-toggle][data-sound="off"] .iconBtn__dot {
  opacity: 0.28;
}

.iconBtn[data-sound-toggle][data-sound="on"] .iconBtn__dot {
  opacity: 1;
}

.iconBtn[data-theme-toggle][data-theme="dark"] .iconBtn__dot {
  opacity: 1;
}

.iconBtn[data-theme-toggle][data-theme="light"] .iconBtn__dot {
  opacity: 0.55;
}

.menuOverlay {
  position: fixed;
  inset: 0;
  z-index: 80;
  background: var(--bg);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur) var(--ease);
}

.menuOverlay.is-open {
  opacity: 1;
  pointer-events: auto;
}

.menuOverlay__inner {
  height: 100%;
  display: grid;
  align-items: center;
}

.menuPanel {
  display: grid;
  gap: 22px;
  padding: 24px 0;
}

.menuPanel__link {
  font-family: var(--display);
  font-size: clamp(2rem, 5vw, 3.75rem);
  letter-spacing: -0.02em;
  line-height: 1;
  text-decoration: none;
  position: relative;
  width: fit-content;
}

.menuPanel__link[aria-current="page"] {
  opacity: 1;
  text-decoration: underline;
  text-underline-offset: 8px;
  text-decoration-thickness: 2px;
}

.menuPanel__link:not([aria-current="page"]) {
  opacity: 0.65;
}

.menuPanel__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur) var(--ease);
  opacity: 0.5;
}

.menuPanel__link:hover::after {
  transform: scaleX(1);
}

.menuPanel__meta {
  margin-top: 20px;
  color: var(--text-muted);
  max-width: 68ch;
}

.pillRow {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 10px 12px;
  background: transparent;
  text-decoration: none;
}

.pill:hover {
  text-decoration: none;
  background: var(--panel);
}

/* =========================
   Intro Loader
   ========================= */

.intro {
  position: fixed;
  inset: 0;
  z-index: 120;
  background: var(--bg);
  display: grid;
  align-items: center;
  opacity: 1;
  transition: opacity var(--dur) var(--ease);
}

.intro.is-hidden {
  opacity: 0;
  pointer-events: none;
}

.intro__inner {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(16px, 4vw, 42px);
  align-items: center;
  padding-block: 24px;
}

.intro__vertical {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-size: 0.9rem;
  color: var(--text-muted);
  user-select: none;
}

.intro__panel {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(18px, 4vw, 34px);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.intro__title {
  font-family: var(--display);
  font-size: clamp(1.55rem, 2.6vw, 2.25rem);
  line-height: 1.05;
  margin: 0;
}

.intro__desc {
  margin: 14px 0 0;
  color: var(--text-muted);
  max-width: 68ch;
}

.intro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.intro__hint {
  margin-top: 12px;
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* =========================
   Hero
   ========================= */

.hero {
  position: relative;
  min-height: 100svh;
  padding-top: 92px;
  overflow-x: clip;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.hero__veil {
  position: absolute;
  inset: 0;
  background: radial-gradient(1200px 600px at 15% 25%, rgba(255, 255, 255, 0.55), transparent),
    radial-gradient(1100px 700px at 80% 65%, rgba(3, 3, 3, 0.08), transparent),
    linear-gradient(to bottom, rgba(0, 0, 0, 0), var(--bg));
  opacity: 0.9;
}

html[data-theme="dark"] .hero__veil {
  background: radial-gradient(1200px 600px at 15% 25%, rgba(255, 255, 255, 0.06), transparent),
    radial-gradient(1100px 700px at 80% 65%, rgba(255, 255, 255, 0.04), transparent),
    linear-gradient(to bottom, rgba(0, 0, 0, 0), var(--bg));
  opacity: 0.84;
}

html[data-theme="dark"] .hero__canvas {
  filter: brightness(1.07) contrast(1.12);
}

.hero__content {
  position: relative;
  z-index: 1;
  padding-block-start: clamp(46px, 10vw, 96px);
  padding-block-end: clamp(46px, 8vw, 84px);
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-bottom: 14px;
}

.hero__metaDot {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: currentColor;
  opacity: 0.55;
}

.hero__scrollHint {
  position: absolute;
  left: var(--gutter-start);
  bottom: 22px;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.hero__scrollHint::before {
  content: "";
  width: 1px;
  height: 38px;
  background: var(--line);
}

/* =========================
   Project Cards
   ========================= */

.grid {
  display: grid;
  gap: var(--grid-gap);
}

.grid--2 {
  grid-template-columns: 1fr;
}

.grid--3 {
  grid-template-columns: 1fr;
}

@media (min-width: 860px) {
  .grid--2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid--3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.projectCard {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
  transform: translateY(0);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.projectCard:hover {
  transform: translateY(-2px);
  box-shadow: 0 24px 55px rgba(0, 0, 0, 0.35);
  text-decoration: none;
}

html[data-theme="dark"] .projectCard:hover {
  box-shadow: 0 24px 55px rgba(0, 0, 0, 0.65);
}

.projectCard__media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.projectCard__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.projectCard__body {
  padding: 16px 16px 18px;
}

.projectCard__title {
  font-family: var(--display);
  font-size: var(--h3);
  line-height: 1.1;
  margin: 0;
}

.projectCard__meta {
  margin-top: 8px;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.projectCard__specs {
  margin-top: 10px;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* =========================
   Mosaic gallery
   ========================= */

.mosaic {
  column-count: 3;
  column-gap: 1.75rem;
  column-fill: balance;
  width: 100%;
  margin-top: 28px;
}

.mosaic__item {
  break-inside: avoid;
  -webkit-column-break-inside: avoid;
  margin: 0 0 1.75rem;
  display: block;
}

.mosaicCard {
  margin: 0;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  border: 1px solid var(--line);
  background: transparent;
  line-height: 0;
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.mosaicCard:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 55px rgba(0, 0, 0, 0.35);
}

html[data-theme="dark"] .mosaicCard:hover {
  box-shadow: 0 24px 55px rgba(0, 0, 0, 0.65);
}

.mosaicCard__link {
  display: block;
  text-decoration: none;
}

.mosaicCard__img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.mosaicCard__cap {
  padding: 0.65rem 0.85rem;
  background: rgba(5, 7, 17, 0.72);
  color: #ffffff;
  line-height: 1.25;
  font-size: 0.9rem;
}

.mosaicCard__cap a {
  color: inherit;
  text-decoration: underline;
}

.liteEmbed {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: rgba(0, 0, 0, 0.12);
}

.liteEmbed__btn {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.liteEmbed__play {
  width: 64px;
  height: 64px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.5);
  background: rgba(3, 3, 3, 0.65);
  display: grid;
  place-items: center;
}

.liteEmbed__play svg {
  width: 22px;
  height: 22px;
  fill: #ffffff;
  transform: translateX(1px);
}

.liteEmbed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

@media (max-width: 1100px) {
  .mosaic {
    column-count: 2;
  }
}

@media (max-width: 700px) {
  .mosaic {
    column-count: 1;
    column-gap: 1.25rem;
  }

  .mosaic__item {
    margin-bottom: 1.25rem;
  }
}

/* =========================
   Publications
   ========================= */

.pubList {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.pub {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 14px 14px 16px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.pub__title {
  font-family: var(--display);
  margin: 0;
  line-height: 1.15;
}

.pub__meta {
  margin-top: 6px;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.pub__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 10px;
}

.pub__links a {
  text-decoration: underline;
  color: inherit;
}

details.pub summary {
  cursor: pointer;
  list-style: none;
  font-family: var(--display);
  font-size: var(--h3);
  line-height: 1.1;
}

details.pub summary::-webkit-details-marker {
  display: none;
}

details.pub summary::after {
  content: "+";
  float: right;
  opacity: 0.65;
}

details.pub[open] summary::after {
  content: "–";
}

details.pub[open] summary {
  margin-bottom: 10px;
}

/* =========================
   Footer
   ========================= */

.siteFooter {
  padding: 44px 0 70px;
  border-top: 1px solid var(--line);
}

.footerGrid {
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr;
  align-items: start;
}

@media (min-width: 900px) {
  .footerGrid {
    grid-template-columns: 1.1fr 0.9fr;
  }
}

.footerNote {
  color: var(--text-muted);
  max-width: 70ch;
}

.footerLinks {
  display: grid;
  gap: 8px;
  justify-items: start;
}

.footerLinks a {
  text-decoration: underline;
}

/* =========================
   Utility
   ========================= */

.mt-section {
  margin-top: 28px;
}

/* =========================
   kbd styling
   ========================= */

kbd {
  display: inline-block;
  padding: 2px 7px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  font-family: var(--sans);
  font-size: 0.85em;
  line-height: 1.4;
}

/* =========================
   Footer profile links
   ========================= */

.footerProfiles {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.footerProfiles a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.9rem;
  text-decoration: none;
}

.footerProfiles a:hover {
  background: var(--panel);
  text-decoration: none;
}

/* =========================
   Reveals (progressive)
   ========================= */

.js [data-reveal] {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

.js [data-reveal].is-revealed {
  opacity: 1;
  transform: translateY(0);
}

/* =========================
   Reduced motion
   ========================= */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  body {
    transition: none;
  }
}