/* Krets landing — matches design mockup */

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

.landing-page {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Syne", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
  max-width: 100%;
}

.landing-page a {
  color: inherit;
  text-decoration: none;
}

.landing-page a:hover {
  opacity: 1;
}

.landing-page .nav-center__link {
  color: var(--text-muted);
}

.landing-page .nav-center__link:hover,
.landing-page .nav-center__link.is-active {
  color: var(--text);
}

.landing-page a.nav-apply-btn,
.landing-page a.nav-apply-btn:hover {
  color: var(--accent-fg);
}

/* ── Hero ── */
.landing-hero {
  position: relative;
  overflow: hidden;
  padding: 48px 48px 72px;
  border-bottom: 1px solid var(--border);
  min-height: min(72vh, 720px);
  display: flex;
  align-items: flex-end;
  background: var(--bg);
}

.landing-hero__grid-wrap {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  background: var(--bg);
  isolation: isolate;
  perspective: min(1300px, 110vw);
  perspective-origin: 50% 42%;
}

.landing-hero__grid {
  position: absolute;
  left: 50%;
  top: 42%;
  width: 0;
  height: 0;
  transform-style: preserve-3d;
  pointer-events: none;
}

.landing-hero__grid.is-empty::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse 70% 55% at 50% 42%,
    rgba(238, 238, 238, 0.06) 0%,
    transparent 70%
  );
}

.landing-hero__tile {
  position: absolute;
  left: 0;
  top: 0;
  display: block;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  border: none;
  background: var(--bg);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
  transform-origin: center center;
  backface-visibility: visible;
  will-change: transform, filter;
  pointer-events: none;
  opacity: 0;
}

.landing-hero__tile img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.35s ease;
}

.landing-hero__tile img.is-loaded {
  opacity: 1;
}

.landing-hero__tile.is-visible {
  opacity: 1;
}

.landing-hero__tile.is-featured {
  box-shadow: 0 32px 72px rgba(0, 0, 0, 0.75);
}

[data-theme="light"] .landing-hero__tile {
  box-shadow: 0 16px 40px rgba(18, 18, 18, 0.14);
}

[data-theme="light"] .landing-hero__tile.is-featured {
  box-shadow: 0 24px 56px rgba(18, 18, 18, 0.2);
}

.landing-hero__scrim {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background-color: var(--hero-scrim);
  background-image: var(--hero-scrim-gradient);
}

.landing-hero__content {
  position: relative;
  z-index: 2;
  width: 100%;
  color: var(--hero-fg);
}

.landing-hero__content .landing-label {
  color: var(--hero-label);
}

.landing-hero__content .landing-headline {
  color: var(--hero-fg);
}

.landing-hero__content .landing-subhead {
  color: var(--hero-fg-muted);
}

@media (prefers-reduced-motion: reduce) {
  .landing-hero__grid-wrap {
    display: none;
  }

  .landing-hero {
    min-height: 0;
    display: block;
  }
}

.landing-label {
  margin: 0;
  font-family: "Syne Mono", ui-monospace, monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--landing-label);
}

.landing-headline {
  margin: 40px 0 16px;
  max-width: 11.5em;
  font-size: clamp(52px, 7.5vw, 104px);
  font-weight: 800;
  line-height: 0.92;
  letter-spacing: -0.04em;
}

.landing-subhead {
  margin: 0;
  font-size: clamp(18px, 2.2vw, 24px);
  font-weight: 400;
  color: var(--landing-muted);
}

/* ── Category marquee (fewer cells = full labels) ── */
.landing-categories {
  --landing-category-visible: 4;
  overflow: hidden;
  max-width: 100%;
  border-bottom: 1px solid var(--border);
}

.landing-categories__viewport {
  overflow: hidden;
  width: 100%;
}

.landing-categories__track {
  display: flex;
  width: max-content;
  will-change: transform;
  animation: landing-categories-marquee 90s linear infinite;
}

.landing-categories__track:hover {
  animation-play-state: paused;
}

@keyframes landing-categories-marquee {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

.landing-category {
  flex: 0 0 calc(100vw / var(--landing-category-visible));
  width: calc(100vw / var(--landing-category-visible));
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-end;
  gap: 12px;
  min-height: 160px;
  padding: 24px;
  border-right: 1px solid var(--border);
  color: var(--text);
  text-decoration: none;
}

.landing-category__num {
  font-family: "Syne Mono", ui-monospace, monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--landing-label);
  line-height: 1;
}

.landing-category__name {
  font-family: "Syne", system-ui, sans-serif;
  font-size: clamp(18px, 2.4vw, 28px);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--text);
  max-width: 100%;
}

.landing-category:hover {
  background: var(--surface-hover);
}

/* ── About ── */
.landing-about {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) 2fr;
  border-bottom: 1px solid var(--border);
  min-height: 300px;
}

.landing-about__label {
  padding: 48px;
}

.landing-about__text {
  padding: 48px;
}

.landing-about__text p {
  margin: 0;
  max-width: 42em;
  font-size: 17px;
  font-weight: 400;
  line-height: 1.65;
  color: var(--text);
}

/* ── Apply ── */
.landing-apply {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-areas:
    "label label"
    "copy form";
  align-items: start;
  column-gap: 48px;
  padding: 48px;
  min-height: min(72vh, 640px);
}

.landing-apply__label {
  grid-area: label;
  margin: 0;
}

.landing-apply__copy {
  grid-area: copy;
}

.landing-apply__title {
  margin: 40px 0 24px;
  font-size: clamp(40px, 5vw, 64px);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -0.03em;
  color: var(--text);
}

.landing-apply__note {
  margin: 0;
  max-width: 22em;
  font-size: 15px;
  line-height: 1.55;
  color: var(--landing-label);
}

.landing-form {
  grid-area: form;
  padding-top: 40px;
  align-self: start;
}

.landing-form .form {
  display: grid;
  gap: 0;
  border: 1px solid var(--border);
  background: var(--card);
}

.landing-form .form label {
  display: grid;
  gap: 0.5rem;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--landing-muted);
  cursor: text;
}

.landing-form .form label input {
  width: 100%;
  padding: 0;
  border: none;
  border-radius: 0;
  background: transparent;
  color: var(--text);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 400;
  text-transform: none;
  letter-spacing: normal;
  outline: none;
}

.landing-form .form label input::placeholder {
  color: var(--landing-form-placeholder);
  text-transform: none;
}

.landing-form .form label:focus-within {
  background: var(--surface-hover);
}

[data-theme="light"] .landing-form .form,
[data-theme="light"] .landing-form .form label {
  background: var(--bg);
}

[data-theme="light"] .landing-form .form label:focus-within {
  background: var(--surface-hover);
}

.landing-form .field-error {
  margin: 0;
  padding-top: 0.35rem;
  font-family: "Syne Mono", ui-monospace, monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #e8a4a4;
  line-height: 1.45;
}

.landing-form .form label.field--invalid {
  color: #e8a4a4;
}

.landing-form .form label.field--invalid input {
  color: #f5d0d0;
}

.landing-form .btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  margin: 0;
  padding: 1rem 1.25rem;
  border: none;
  border-radius: 0;
  border-top: 1px solid var(--border);
  font-family: inherit;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  cursor: pointer;
}

.landing-form .btn--primary {
  background: var(--accent);
  color: var(--accent-fg);
}

.landing-form .btn--primary:hover {
  background: var(--accent-hover);
  color: var(--accent-fg);
  opacity: 1;
}

.landing-apply__legal {
  margin: 0;
  padding: 0.85rem 1.25rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--landing-muted);
}

.landing-apply__legal a {
  color: var(--text);
}

.landing-apply__confirmation {
  margin: 0;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
  line-height: 1.55;
  color: var(--text-muted);
}

.landing-apply__confirmation--success {
  color: var(--text);
}

.landing-apply__confirmation--error {
  color: #f0a0a0;
}

/* ── Flash messages ── */
.landing-page .flash-stack {
  padding: 16px 48px 0;
  margin: 0;
}

.landing-page .flash {
  margin: 0 0 8px;
  padding: 12px 16px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text);
  font-size: 13px;
}

/* ── Responsive ── */
@media (max-width: 1280px) {
  .landing-categories {
    --landing-category-visible: 3;
  }
}

@media (max-width: 1024px) {
  .landing-headline {
    max-width: none;
  }

  .landing-categories {
    --landing-category-visible: 3;
  }

  .landing-category {
    padding: 20px;
  }
}

@media (max-width: 720px) {
  .landing-categories {
    --landing-category-visible: 2;
  }

  .landing-category {
    min-height: 140px;
    padding: 18px;
  }
}

@media (max-width: 480px) {
  .landing-categories {
    --landing-category-visible: 1;
  }

  .landing-category {
    min-height: 128px;
    padding: 16px;
    gap: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .landing-categories__track {
    animation: none;
    flex-wrap: wrap;
    width: 100%;
  }

  .landing-categories__viewport {
    overflow: visible;
  }

  .landing-categories {
    overflow: visible;
  }

  .landing-categories {
    --landing-category-visible: 2;
  }

  .landing-categories__track .landing-category[aria-hidden="true"] {
    display: none;
  }
}

@media (max-width: 768px) {
  .nav,
  .landing-hero,
  .landing-about__label,
  .landing-about__text,
  .landing-apply,
  .landing-page .flash-stack {
    padding-left: 24px;
    padding-right: 24px;
  }

  .landing-headline {
    margin: 1.5rem 0 0.75rem;
    font-size: clamp(1.75rem, 7vw, 2.5rem);
    line-height: 0.95;
    letter-spacing: -0.03em;
  }

  .landing-about,
  .landing-apply {
    grid-template-columns: 1fr;
  }

  .landing-about__label {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }

  .landing-apply {
    grid-template-columns: 1fr;
    grid-template-areas:
      "label"
      "copy"
      "form";
    row-gap: 0;
    column-gap: 0;
  }

  .landing-form {
    padding-top: 0;
    margin-top: 1.5rem;
  }
}