/* ==========================================================================
   components.css — buttons, links, tags, toggle, cursor, preloader,
   curtain, modal, toast, form, filter, marquee, project card
   ========================================================================== */

/* ---------- Icons ---------- */
.icon {
  inline-size: 1em;
  block-size: 1em;
  flex: none;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: square;
  stroke-linejoin: miter;
}

/* ---------- Buttons ---------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-2);
  min-block-size: 2.875rem;
  padding: var(--s-2) var(--s-5);
  font-family: var(--f-mono);
  font-size: var(--fs-sm);
  font-weight: 500;
  letter-spacing: 0.02em;
  line-height: 1.2;
  white-space: nowrap;
  border: var(--hair) solid var(--c-line-strong);
  border-radius: var(--radius);
  isolation: isolate;
  overflow: hidden;
  transition: color var(--dur-fast) var(--ease-soft), border-color var(--dur-fast) var(--ease-soft);
}

/* Fill wipes in from the start edge on hover */
.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--c-ink);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.55s var(--ease-out);
}

.btn:hover::before,
.btn:focus-visible::before {
  transform: scaleX(1);
  transform-origin: left;
}

.btn:hover,
.btn:focus-visible {
  color: var(--c-bg);
  border-color: var(--c-ink);
}

.btn .icon {
  transition: transform var(--dur-fast) var(--ease-out);
}

.btn:hover .icon--arrow-right {
  transform: translateX(3px);
}

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

.btn:hover .icon--arrow-down {
  transform: translateY(2px);
}

.btn--primary {
  background: var(--c-accent-fill);
  border-color: var(--c-accent-fill);
  color: var(--c-accent-ink);
}

.btn--sm {
  min-block-size: 2.5rem;
  padding-inline: var(--s-4);
  font-size: var(--fs-xs);
}

.btn__inner {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
}

/* ---------- Underline link ---------- */
.link-line {
  position: relative;
  background-image: linear-gradient(currentColor, currentColor);
  background-size: 0% 1px;
  background-position: 100% 100%;
  background-repeat: no-repeat;
  transition: background-size 0.5s var(--ease-out), color var(--dur-fast) var(--ease-soft);
}

.link-line:hover,
.link-line:focus-visible,
.link-line[aria-current="true"] {
  background-size: 100% 1px;
  background-position: 0 100%;
}

.link-line--static {
  background-size: 100% 1px;
  background-position: 0 100%;
}

.link-line--static:hover {
  color: var(--c-accent);
}

/* ---------- Tags ---------- */
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.55rem;
  font-size: var(--fs-2xs);
  letter-spacing: 0.04em;
  color: var(--c-ink-2);
  border: var(--hair) solid var(--c-line);
  border-radius: var(--radius);
  transition: border-color var(--dur-fast) var(--ease-soft), color var(--dur-fast) var(--ease-soft);
}

.tag:hover {
  border-color: var(--c-accent);
  color: var(--c-accent);
}

/* ---------- Theme toggle ---------- */
.theme-toggle {
  display: inline-grid;
  place-items: center;
  inline-size: 2.75rem;
  block-size: 2.75rem;
  border: var(--hair) solid var(--c-line-strong);
  border-radius: 50%;
  transition: border-color var(--dur-fast) var(--ease-soft);
}

.theme-toggle:hover {
  border-color: var(--c-accent);
}

.theme-toggle svg {
  inline-size: 1.125rem;
  block-size: 1.125rem;
  transition: transform 0.7s var(--ease-out);
}

.theme-toggle .theme-toggle__half {
  fill: currentColor;
  stroke: none;
}

:root[data-theme="light"] .theme-toggle svg {
  transform: rotate(180deg);
}

/* ---------- Custom cursor (fine pointers only, enabled by JS) ---------- */
.cursor {
  display: none;
}

.has-cursor:not(.modal-open) body,
.has-cursor:not(.modal-open) a,
.has-cursor:not(.modal-open) button {
  cursor: none;
}

.has-cursor.modal-open .cursor {
  display: none;
}

.has-cursor .cursor {
  display: block;
  position: fixed;
  inset: 0;
  z-index: 200;
  pointer-events: none;
}

.cursor__dot,
.cursor__ring {
  position: absolute;
  inset-block-start: 0;
  inset-inline-start: 0;
  border-radius: 50%;
  will-change: transform;
}

.cursor__dot {
  inline-size: 6px;
  block-size: 6px;
  margin: -3px 0 0 -3px;
  background: var(--c-accent-fill);
}

.cursor__ring {
  display: grid;
  place-items: center;
  inline-size: 36px;
  block-size: 36px;
  margin: -18px 0 0 -18px;
}

.cursor__ring::before {
  content: "";
  position: absolute;
  inset: 0;
  border: var(--hair) solid var(--c-line-strong);
  border-radius: 50%;
  transition: transform 0.5s var(--ease-out), background-color 0.3s var(--ease-soft), border-color 0.3s var(--ease-soft);
}

.cursor__label {
  position: relative;
  font-size: var(--fs-2xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-accent-ink);
  opacity: 0;
  transform: scale(0.6);
  transition: opacity 0.3s var(--ease-soft), transform 0.5s var(--ease-out);
}

.cursor.is-hover .cursor__ring::before {
  transform: scale(1.5);
  border-color: var(--c-accent);
}

.cursor.is-label .cursor__ring::before {
  transform: scale(2.4);
  background: var(--c-accent-fill);
  border-color: var(--c-accent-fill);
}

.cursor.is-label .cursor__label {
  opacity: 1;
  transform: scale(1);
}

.cursor.is-label .cursor__dot,
.cursor.is-hidden .cursor__dot,
.cursor.is-hidden .cursor__ring {
  opacity: 0;
}

/* ---------- Preloader ---------- */
.preloader {
  display: none;
}

.js:not(.no-preload) .preloader {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: grid;
  place-items: center;
  background: var(--c-bg);
  transition: clip-path 0.75s var(--ease-in-out);
  clip-path: inset(0 0 0 0);
}

.preloader.is-done {
  clip-path: inset(0 0 100% 0);
}

.preloader__center {
  display: grid;
  justify-items: center;
  gap: var(--s-5);
}

.preloader__mark {
  inline-size: clamp(4.5rem, 3rem + 6vw, 7rem);
  block-size: auto;
  color: var(--c-ink);
}

.preloader__mark path {
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  animation: draw 0.9s var(--ease-in-out) forwards;
}

.preloader__mark rect {
  fill: var(--c-accent-fill);
  opacity: 0;
  animation: fade-in 0.3s var(--ease-soft) 0.85s forwards;
}

.preloader__count {
  font-size: var(--fs-sm);
  letter-spacing: 0.1em;
  font-variant-numeric: tabular-nums;
}

.preloader__bar {
  inline-size: 9rem;
  block-size: var(--hair);
  background: var(--c-line);
  overflow: hidden;
}

.preloader__bar span {
  display: block;
  block-size: 100%;
  background: var(--c-accent-fill);
  transform: scaleX(0);
  transform-origin: left;
}

.preloader__skip {
  position: absolute;
  inset-block-end: var(--s-6);
  inset-inline-end: var(--gutter);
  padding: var(--s-2) var(--s-3);
}

.preloader__meta {
  position: absolute;
  inset-block-end: var(--s-6);
  inset-inline-start: var(--gutter);
}

/* ---------- Page curtain (transitions between portfolio and demos) ---------- */
.curtain {
  position: fixed;
  inset: 0;
  z-index: 250;
  display: grid;
  place-items: center;
  background: var(--c-surface);
  pointer-events: none;
  transform: translateY(100%);
}

.curtain.is-in {
  transform: translateY(0);
  transition: transform 0.6s var(--ease-in-out);
  pointer-events: auto;
}

.curtain.is-leaving {
  transform: translateY(-100%);
  transition: transform 0.7s var(--ease-in-out);
}

/* ---------- Demo modal ---------- */
.demo-modal {
  position: fixed;
  inset: 0;
  z-index: 150;
  display: grid;
  grid-template-rows: auto 1fr;
  background: var(--c-bg);
  clip-path: inset(100% 0 0 0);
  transition: clip-path 0.7s var(--ease-in-out);
}

.demo-modal.is-open {
  clip-path: inset(0 0 0 0);
}

.demo-modal__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-4);
  padding: var(--s-3) var(--gutter);
  border-bottom: var(--hair) solid var(--c-line);
}

.demo-modal__title {
  min-inline-size: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.demo-modal__actions {
  display: flex;
  gap: var(--s-2);
  flex: none;
}

.demo-modal__frame {
  inline-size: 100%;
  block-size: 100%;
  border: 0;
  background: var(--c-bg);
}

.demo-modal__new-tab-text {
  display: none;
}

@media (min-width: 640px) {
  .demo-modal__new-tab-text {
    display: inline;
  }
}

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  inset-block-end: var(--s-5);
  inset-inline-start: 50%;
  z-index: 260;
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  padding: var(--s-2) var(--s-4);
  font-size: var(--fs-sm);
  background: var(--c-ink);
  color: var(--c-bg);
  border-radius: var(--radius);
  opacity: 0;
  transform: translate(-50%, 1rem);
  pointer-events: none;
  transition: opacity 0.4s var(--ease-soft), transform 0.6s var(--ease-out);
}

.toast::before {
  content: "";
  inline-size: 6px;
  block-size: 6px;
  background: var(--c-accent-fill);
}

.toast.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

/* ---------- Form ---------- */
.field {
  position: relative;
  display: grid;
  gap: var(--s-2);
}

.field__input {
  inline-size: 100%;
  padding: var(--s-3) 0;
  background: transparent;
  border: 0;
  border-bottom: var(--hair) solid var(--c-line-strong);
  border-radius: 0;
  font-size: var(--fs-base);
  transition: border-color var(--dur-fast) var(--ease-soft);
}

.field__input::placeholder {
  color: var(--c-faint);
}

.field__input:hover {
  border-color: var(--c-ink-2);
}

.field__input:focus-visible {
  outline: none;
  border-color: var(--c-accent);
}

/* Focus underline grows from the start edge */
.field::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  inset-block-end: 0;
  block-size: 2px;
  background: var(--c-accent-fill);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.6s var(--ease-out);
}

.field:focus-within::after {
  transform: scaleX(1);
}

textarea.field__input {
  resize: vertical;
  min-block-size: 8rem;
}

/* ---------- Filter ---------- */
.filter {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
}

.filter__btn {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  min-block-size: 2.5rem;
  padding: var(--s-1) var(--s-4);
  font-size: var(--fs-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: var(--hair) solid var(--c-line);
  border-radius: 999px;
  transition: border-color var(--dur-fast) var(--ease-soft), background-color var(--dur-fast) var(--ease-soft), color var(--dur-fast) var(--ease-soft);
}

.filter__btn:hover {
  border-color: var(--c-line-strong);
}

.filter__btn[aria-pressed="true"] {
  background: var(--c-ink);
  border-color: var(--c-ink);
  color: var(--c-bg);
}

.filter__count {
  font-size: var(--fs-2xs);
  opacity: 0.7;
}

/* ---------- Marquee ---------- */
.marquee {
  position: relative;
  overflow: hidden;
  border-block: var(--hair) solid var(--c-line);
  padding-block: var(--s-4);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.marquee__track {
  display: flex;
  inline-size: max-content;
}

.marquee__group {
  display: flex;
  align-items: center;
  flex: none;
}

.marquee__item {
  display: inline-flex;
  align-items: center;
  gap: clamp(1.25rem, 0.8rem + 2vw, 3rem);
  padding-inline-end: clamp(1.25rem, 0.8rem + 2vw, 3rem);
  font-family: var(--f-display);
  font-size: var(--fs-xl);
  line-height: 1.2;
  white-space: nowrap;
}

.marquee__item::after {
  content: "";
  inline-size: 0.35em;
  block-size: 0.35em;
  border: var(--hair) solid var(--c-accent);
  transform: rotate(45deg);
}

.marquee__item:nth-child(even) {
  font-style: italic;
  color: var(--c-muted);
}

/* ---------- Project card ---------- */
.card {
  position: relative;
}

.card__inner {
  position: relative;
  display: grid;
  gap: var(--s-5);
  block-size: 100%;
  transform-style: preserve-3d;
}

.card__screen {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background:
    radial-gradient(circle, var(--c-line) 1px, transparent 1.4px) 0 0 / 14px 14px,
    var(--c-surface);
  border: var(--hair) solid var(--c-line);
  transition: border-color var(--dur-fast) var(--ease-soft);
}

.card__screen svg {
  position: absolute;
  inset: 12% 10%;
  inline-size: 80%;
  block-size: 76%;
  color: var(--c-ink-2);
  transition: transform 1s var(--ease-out);
}

.card__screen svg .acc {
  color: var(--c-accent);
  stroke: var(--c-accent);
}

.card__screen svg .fill-acc {
  fill: var(--c-accent-fill);
  stroke: none;
}

/* Animated scan line, visible on hover */
.card__screen::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  inset-block-start: 0;
  block-size: 30%;
  background: linear-gradient(180deg, transparent, var(--c-accent-soft));
  border-bottom: var(--hair) solid var(--c-accent);
  opacity: 0;
  transform: translateY(-110%);
}

.card__inner:hover .card__screen::after {
  opacity: 1;
  animation: scan 2.2s var(--ease-in-out) infinite;
}

.card__inner:hover .card__screen {
  border-color: var(--c-line-strong);
}

.card__inner:hover .card__screen svg {
  transform: scale(1.04);
}

.card__screen-label {
  position: absolute;
  inset-block-start: var(--s-3);
  inset-inline-start: var(--s-3);
  z-index: 1;
}

.card__screen-label--end {
  inset-inline-start: auto;
  inset-inline-end: var(--s-3);
}

.card__screen-corner {
  position: absolute;
  inline-size: 10px;
  block-size: 10px;
  border-color: var(--c-ink-2);
  border-style: solid;
  border-width: 0;
}

.card__screen-corner--bl {
  inset-block-end: var(--s-3);
  inset-inline-start: var(--s-3);
  border-inline-start-width: 1px;
  border-block-end-width: 1px;
}

.card__screen-corner--br {
  inset-block-end: var(--s-3);
  inset-inline-end: var(--s-3);
  border-inline-end-width: 1px;
  border-block-end-width: 1px;
}

.card__body {
  display: grid;
  gap: var(--s-4);
}

.card__top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--s-3);
  padding-block-end: var(--s-3);
  border-bottom: var(--hair) solid var(--c-line);
}

.card__num {
  font-family: var(--f-display);
  font-size: var(--fs-xl);
  line-height: 1;
  color: var(--c-accent);
}

.card__title {
  font-family: var(--f-display);
  font-size: clamp(1.75rem, 1.3rem + 1.6vw, 2.75rem);
  line-height: 1.05;
  letter-spacing: -0.01em;
}

.card__summary {
  color: var(--c-ink-2);
  font-size: var(--fs-sm);
  max-inline-size: 52ch;
}

.card__role {
  display: grid;
  grid-template-columns: 4.5rem 1fr;
  gap: var(--s-3);
  font-size: var(--fs-sm);
  color: var(--c-muted);
}

.card__role dt {
  padding-block-start: 0.15em;
}

.card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
  padding-block-start: var(--s-2);
}

html:not(.has-cursor) .card__inner {
  cursor: pointer;
}