/* =========================================================
   Sveta Bekker — Technion portfolio
   Hebrew / RTL. Logical properties only, no CDN dependencies.
   ========================================================= */

:root {
  /* Brand — violet, taken from the butterfly in the logo */
  --violet-900: #3b0764;
  --violet-700: #6d28d9;
  --violet-600: #7c3aed;
  --violet-500: #8b5cf6;
  --violet-200: #ddd6fe;
  --violet-100: #ede9fe;
  --violet-50:  #f5f3ff;

  --ink-900: #16121f;
  --ink-700: #3d3552;
  --ink-500: #635c78;
  --ink-300: #a9a2bb;

  --surface:     #ffffff;
  --surface-alt: #faf9fd;
  --border:      #e7e3f0;

  --radius-sm: 10px;
  --radius:    18px;
  --radius-lg: 26px;

  --shadow-sm: 0 1px 2px rgba(22, 18, 31, .05);
  --shadow:    0 6px 24px -8px rgba(59, 7, 100, .16);
  --shadow-lg: 0 22px 48px -16px rgba(59, 7, 100, .28);

  --wrap: 1220px;
  --ease: cubic-bezier(.22, .61, .36, 1);

  --font: "Segoe UI", "Assistant", "Heebo", "Rubik", system-ui,
          -apple-system, "Noto Sans Hebrew", Arial, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink-700);
  background: var(--surface);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: var(--violet-700); }

h1, h2, h3 {
  color: var(--ink-900);
  line-height: 1.2;
  margin: 0;
  font-weight: 700;
  letter-spacing: -.01em;
}

.wrap {
  width: min(100% - 2.5rem, var(--wrap));
  margin-inline: auto;
}

/* Keep anchor targets clear of the sticky header */
section[id] { scroll-margin-block-start: 90px; }

/* Visually hidden, still read by screen readers */
.sr-only {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* ---------- Focus & skip link ------------------------------------------ */

:focus-visible {
  outline: 3px solid var(--violet-600);
  outline-offset: 3px;
  border-radius: 6px;
}

.skip-link {
  position: absolute;
  inset-block-start: -100px;
  inset-inline-start: 1rem;
  z-index: 100;
  padding: .75rem 1.25rem;
  background: var(--violet-700);
  color: #fff;
  font-weight: 600;
  text-decoration: none;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  transition: inset-block-start .2s var(--ease);
}
.skip-link:focus { inset-block-start: 0; }

/* ---------- Header ----------------------------------------------------- */

.site-header {
  position: sticky;
  inset-block-start: 0;
  z-index: 40;
  background: rgba(255, 255, 255, .88);
  backdrop-filter: blur(12px);
  border-block-end: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-block-size: 76px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .85rem;
  text-decoration: none;
  color: inherit;
}

.brand__logo { block-size: 44px; inline-size: auto; }

.brand__text { display: flex; flex-direction: column; }

.brand__name {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--ink-900);
  letter-spacing: .01em;
}

.brand__role {
  font-size: .82rem;
  color: var(--ink-500);
  line-height: 1.3;
}

.header-nav { display: flex; gap: 1.75rem; }

.header-nav a {
  font-weight: 600;
  font-size: .97rem;
  color: var(--ink-700);
  text-decoration: none;
  padding-block: .35rem;
  border-block-end: 2px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.header-nav a:hover {
  color: var(--violet-700);
  border-block-end-color: var(--violet-500);
}

/* ---------- Hero ------------------------------------------------------- */

.hero {
  position: relative;
  padding-block: clamp(3.5rem, 9vw, 6.5rem) clamp(2.5rem, 6vw, 4.5rem);
  background:
    radial-gradient(1100px 460px at 92% -12%, var(--violet-100), transparent 62%),
    radial-gradient(760px 380px at 4% 108%,  var(--violet-50),  transparent 68%);
  overflow: hidden;
}

.hero__eyebrow {
  margin: 0 0 1rem;
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--violet-600);
}

.hero__title {
  font-size: clamp(2.4rem, 6.2vw, 4.2rem);
  margin-block-end: 1.4rem;
}

.hero__title-accent {
  background: linear-gradient(90deg, var(--violet-700), var(--violet-500));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__lead {
  max-inline-size: 60ch;
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  color: var(--ink-500);
  margin: 0 0 2rem;
}

.hero__lead strong { color: var(--violet-700); }

.hero__cta { margin: 0; }

/* ---------- Buttons ---------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .85rem 1.85rem;
  border: 0;
  border-radius: 999px;
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: transform .2s var(--ease), box-shadow .2s var(--ease),
              background-color .2s var(--ease);
}

.btn--primary {
  background: var(--violet-700);
  color: #fff;
  box-shadow: var(--shadow);
}
.btn--primary:hover {
  background: var(--violet-600);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.link-btn {
  background: none;
  border: 0;
  padding: 0;
  font: inherit;
  font-weight: 600;
  color: var(--violet-700);
  text-decoration: underline;
  cursor: pointer;
}

/* ---------- Section heading -------------------------------------------- */

.section-title {
  font-size: clamp(1.7rem, 3.4vw, 2.4rem);
  margin-block-end: 1.75rem;
  position: relative;
  padding-inline-start: 1rem;
}

.section-title::before {
  content: "";
  position: absolute;
  inset-inline-start: 0;
  inset-block: .22em .22em;
  inline-size: 5px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--violet-600), var(--violet-200));
}

/* ---------- Filters ---------------------------------------------------- */

.works { padding-block: clamp(2.5rem, 6vw, 4.5rem) clamp(3.5rem, 8vw, 6rem); }

.filters { margin-block-end: 2.5rem; }

.filters__label {
  font-size: .95rem;
  font-weight: 600;
  color: var(--ink-500);
  margin-block-end: .85rem;
}

.filters__bar {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .55rem 1.15rem;
  border: 1.5px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink-700);
  font: inherit;
  font-size: .93rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color .2s var(--ease), background-color .2s var(--ease),
              color .2s var(--ease), transform .2s var(--ease);
}

.chip:hover {
  border-color: var(--violet-500);
  color: var(--violet-700);
  transform: translateY(-1px);
}

.chip.is-active {
  background: var(--violet-700);
  border-color: var(--violet-700);
  color: #fff;
}

.chip__count {
  font-size: .78rem;
  font-weight: 700;
  opacity: .7;
  font-variant-numeric: tabular-nums;
}

.filters__status {
  margin-block: 1rem 0;
  font-size: .9rem;
  color: var(--ink-500);
}

/* ---------- Grid ------------------------------------------------------- */

.grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(310px, 1fr));
  gap: 1.75rem;
}

.card {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .5s var(--ease), transform .5s var(--ease);
}
.card.is-visible { opacity: 1; transform: none; }

/* Filtered-out cards leave the flow after fading */
.card.is-hidden { display: none; }

.card__link {
  display: flex;
  flex-direction: column;
  block-size: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  box-shadow: var(--shadow-sm);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease),
              border-color .3s var(--ease);
}

.card__link:hover,
.card__link:focus-visible {
  transform: translateY(-6px);
  border-color: var(--violet-200);
  box-shadow: var(--shadow-lg);
}

.card__media {
  position: relative;
  aspect-ratio: 16 / 10;
  background: linear-gradient(135deg, var(--violet-100), var(--violet-50));
  overflow: hidden;
}

.card__shot {
  position: relative; /* paint above the absolutely-positioned placeholder */
  z-index: 1;
  inline-size: 100%;
  block-size: 100%;
  object-fit: cover;
  object-position: top center;
  background: var(--violet-50);
  opacity: 0; /* cross-fades in over the placeholder once decoded */
  transition: transform .55s var(--ease), opacity .45s var(--ease);
}

.card__shot.is-loaded { opacity: 1; }

.card__link:hover .card__shot,
.card__link:focus-visible .card__shot { transform: scale(1.045); }

/* Placeholder shown when the screenshot file is missing */
.card__placeholder {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  gap: .4rem;
  text-align: center;
  padding: 1.5rem;
  background: linear-gradient(135deg, var(--violet-200), var(--violet-50));
}

.card__placeholder-mark {
  font-size: 2.1rem;
  font-weight: 800;
  color: var(--violet-700);
  letter-spacing: .04em;
}

.card__placeholder-note {
  font-size: .78rem;
  color: var(--violet-700);
  opacity: .75;
}

.card__external {
  position: absolute;
  z-index: 2; /* above .card__shot */
  inset-block-start: .75rem;
  inset-inline-end: .75rem;
  inline-size: 34px;
  block-size: 34px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, .92);
  color: var(--violet-700);
  box-shadow: var(--shadow-sm);
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity .3s var(--ease), transform .3s var(--ease);
}

.card__link:hover .card__external,
.card__link:focus-visible .card__external { opacity: 1; transform: none; }

.card__body {
  border-block-start: 1px solid var(--border);
  padding: 1.15rem 1.25rem 1.35rem;
  display: flex;
  flex-direction: column;
  gap: .5rem;
  flex: 1;
}

.card__name {
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--ink-900);
}

.card__desc {
  margin: 0;
  font-size: .9rem;
  color: var(--ink-500);
  flex: 1;
}

.card__tags {
  list-style: none;
  margin: .35rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
}

.card__tag {
  font-size: .74rem;
  font-weight: 600;
  padding: .2rem .65rem;
  border-radius: 999px;
  background: var(--violet-50);
  color: var(--violet-700);
  border: 1px solid var(--violet-100);
}

.grid__empty {
  text-align: center;
  padding-block: 3.5rem;
  color: var(--ink-500);
}

/* ---------- Contact ---------------------------------------------------- */

.contact {
  background: var(--surface-alt);
  border-block-start: 1px solid var(--border);
  padding-block: clamp(3rem, 7vw, 5rem);
}

.contact__inner { max-inline-size: 62ch; }

.contact__text { color: var(--ink-500); margin-block-end: 1.75rem; }

.contact__actions { margin: 0; }

/* ---------- Footer ----------------------------------------------------- */

.site-footer {
  background: var(--ink-900);
  color: #cdc6dd;
  padding-block: 1.85rem;
  font-size: .9rem;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
}

.footer__copy { margin: 0; }

.footer__nav a { color: #d9d2e8; text-decoration: underline; }
.footer__nav a:hover { color: #fff; }

/* ---------- Accessibility statement page ------------------------------- */

.doc {
  padding-block: clamp(2.5rem, 6vw, 4rem);
  max-inline-size: 78ch;
}

.doc h2 {
  font-size: 1.3rem;
  margin-block: 2.25rem .75rem;
}

.doc ul { padding-inline-start: 1.3rem; }

.doc li { margin-block-end: .4rem; }

/* ---------- Responsive ------------------------------------------------- */

@media (max-width: 720px) {
  body { font-size: 16px; }

  .header-inner { min-block-size: 66px; }
  .brand__role { display: none; }
  .header-nav { gap: 1.1rem; }

  .grid { grid-template-columns: 1fr; gap: 1.35rem; }

  /* Touch devices get no hover state — keep the affordance visible */
  .card__external { opacity: 1; transform: none; }
}

@media (max-width: 380px) {
  .brand__name { font-size: 1.05rem; }
  .chip { padding: .5rem .9rem; font-size: .87rem; }
}

/* ---------- Reduced motion --------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }

  .card { opacity: 1; transform: none; }
}

/* ---------- Print ------------------------------------------------------ */

@media print {
  .site-header, .filters, .contact, .skip-link { display: none; }
  .card__link { box-shadow: none; border-color: #ccc; }
}