/* Homepage-only styles. Tokens, layout shell, btn/pill from lab/. */

* { box-sizing: border-box; }

html, body { height: 100%; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  overflow: hidden;
}

a { color: inherit; }

/* Shared static hue rim (project-card palette, no glow / no animation) */
:root {
  --accent: #9184d9;
  --hue-rim: linear-gradient(
    115deg,
    #8fb0c8 0%,
    var(--sky) 22%,
    #b8924a 52%,
    var(--horizon) 72%,
    #8fb0c8 100%
  );
}

.hue-hover {
  border: 1px solid var(--line);
  background-color: var(--paper);
  background-image: none;
  transition: border-color 160ms ease, background-image 160ms ease, color 160ms ease;
}
.hue-hover:hover,
.hue-hover:focus-visible {
  border-color: transparent;
  background-image:
    linear-gradient(var(--paper), var(--paper)),
    var(--hue-rim);
  background-origin: border-box;
  background-clip: padding-box, border-box;
  outline: none;
}

/* Fixed Contact / Privacy  -  full-width bar, no translateX. */
.legal-links {
  left: 0 !important;
  right: 0 !important;
  bottom: max(0.65rem, env(safe-area-inset-bottom, 0px));
  transform: none !important;
  justify-content: center;
  flex-wrap: nowrap;
  gap: 0.85rem;
  width: auto;
  max-width: 100%;
  padding: 0.15rem 2.5rem;
  box-sizing: border-box;
  z-index: 20 !important;
  white-space: nowrap;
}

/* Keep slide content above the fixed Contact / Privacy strip. */
.slide {
  padding-bottom: 3.25rem;
}

.hero {
  max-width: 44rem;
  margin: 0 auto;
  width: 100%;
  padding: clamp(2rem, 6vh, 3rem) clamp(1rem, 4vw, 2.5rem);
}

.hero-copy {
  text-align: center;
}

.mark-dock {
  display: block;
  margin-left: auto;
  margin-right: auto;
  pointer-events: none;
}
.mark-dock img {
  display: block;
  width: 100%;
  height: auto;
  transition: opacity 280ms var(--ease, cubic-bezier(0.22, 1, 0.36, 1));
}
.mark-dock--hero {
  width: clamp(9rem, 24vw, 20rem);
  margin-bottom: 1rem;
}
.mark-dock--projects {
  width: clamp(4.25rem, 11vw, 6.75rem);
  margin-bottom: 0.85rem;
}
/* Mark lives in the slide: fades with slide-dim, no absolute flyer math. */
.slide.slide-dim .mark-dock img {
  opacity: 0;
}

.slide-icon {
  display: flex;
  justify-content: center;
  margin: -0.75rem auto 1rem;
  width: 4.25rem;
  height: 4.25rem;
}

.slide-icon svg {
  width: 100%;
  height: 100%;
  display: block;
}

.slide-icon--services {
  color: var(--accent);
}

.slide-icon--projects {
  color: var(--horizon);
}

.slide-icon--products {
  color: var(--accent);
}

.hero-brand {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
}

/* Text under mark: leave fades out; arrive fades in after scroll settle. */
.hero .slide-fade,
.section.projects .slide-fade {
  transition:
    opacity 380ms var(--ease, cubic-bezier(0.22, 1, 0.36, 1)),
    visibility 380ms linear;
}
.hero.slide-dim .slide-fade,
.section.projects.slide-dim .slide-fade {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition-duration: 260ms;
}

.hero h1 {
  margin: 0 auto;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.1rem, 2.6vw, 1.65rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.hero-lede {
  margin: 1.15rem auto 0;
  max-width: 36rem;
  color: var(--ink-soft);
  font-size: 1.05rem;
}

.hero-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.65rem;
  margin-top: 1.75rem;
}

.hero-cta__row {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.65rem;
}

@media (max-width: 560px) {
  .hero h1 { white-space: normal; }
}

@keyframes rise {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: none; }
}

.btn-icon {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
}
.btn-icon-ext {
  width: 11px;
  height: 11px;
  opacity: 0.88;
}

.btn.accent {
  background: var(--accent);
  color: var(--paper);
}
.btn.warm {
  background: var(--horizon);
  color: var(--ink);
}
.btn.token {
  background: var(--sea);
  color: var(--paper);
}

.section {
  max-width: 78rem;
  margin: 0 auto;
  width: 100%;
  padding: clamp(2rem, 6vh, 3rem) clamp(2.5rem, 7vw, 4.5rem);
}

/* Match hero horizontal inset so the mark shares one center line (no L/R flight drift). */
.section.projects {
  padding-left: clamp(1rem, 4vw, 2.5rem);
  /* Gutter lives on .slide (--slide-dots-gutter); keep a modest content inset. */
  padding-right: clamp(1rem, 4vw, 2.5rem);
}

.section-head {
  max-width: 40rem;
  margin: 0 auto 0.75rem;
  text-align: center;
}
.section-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}
.section-head p {
  margin: 0.65rem 0 0;
  color: var(--ink-soft);
}

/* Services + Projects: same head start so slide transitions don't jump. */
#services.slide,
#projects.slide {
  justify-content: flex-start;
  padding-top: clamp(2.25rem, 5.5vh, 5.75rem);
  padding-bottom: clamp(3.25rem, 5vh, 3.5rem);
}

#services .section-head,
#projects .section-head {
  max-width: 40rem;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 0.5rem;
}

#services .section-head > p,
#projects .section-head > p {
  min-height: 3.4em;
}

/* Tab strip height reserved on both slides (empty on Services). */
.section-subnav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  justify-content: center;
  align-items: center;
  min-height: 2.35rem;
  margin: 0.35rem auto 1.1rem;
  max-width: 40rem;
}

.project-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: stretch;
  gap: 1.25rem;
}

/* Shared card track: projects default to 3-up; services is 4-up. */
.project-grid > .project-card {
  flex: 0 1 100%;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}

@media (min-width: 640px) {
  .project-grid > .project-card {
    flex: 0 1 calc((100% - 1.25rem) / 2);
    width: calc((100% - 1.25rem) / 2);
    max-width: calc((100% - 1.25rem) / 2);
  }
}

@media (min-width: 900px) {
  #projectGrid > .project-card,
  #productGrid > .project-card {
    flex: 0 1 calc((100% - 2.5rem) / 3);
    width: calc((100% - 2.5rem) / 3);
    max-width: calc((100% - 2.5rem) / 3);
  }
}

/* Services: four portrait cards (taller than wide). */
@media (min-width: 1100px) {
  #serviceGrid > .project-card,
  #productGrid > .project-card {
    flex: 0 1 calc((100% - 3.75rem) / 4);
    width: calc((100% - 3.75rem) / 4);
    max-width: calc((100% - 3.75rem) / 4);
  }
}

.project-card {
  --card-rim: var(--hue-rim);
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 0;
  background-color: var(--paper);
  background-image: none;
  border: 2px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem;
  cursor: pointer;
  color: inherit;
  text-decoration: none;
  transition:
    transform 180ms var(--ease),
    border-color 180ms ease,
    background-image 180ms ease,
    box-shadow 180ms ease;
}

/* Projects + Products: equal card boxes (lede length must not change size). */
#projectGrid > .project-card,
#productGrid > .project-card {
  height: 15rem;
  min-height: 15rem;
  max-height: 15rem;
  padding: 1.05rem 1.15rem;
}

#projectGrid .project-identity,
#productGrid .project-identity {
  gap: 0.35rem;
}

#projectGrid .project-mark,
#productGrid .project-mark {
  width: 3.5rem;
  height: 3.5rem;
}

#projectGrid .project-identity h3,
#productGrid .project-identity h3 {
  font-size: 1.15rem;
}

/* Services: taller portrait tiles, shared size across all four. */
#serviceGrid > .project-card {
  height: 18.5rem;
  min-height: 18.5rem;
  max-height: 18.5rem;
  padding: 1.5rem;
  box-sizing: border-box;
}

#serviceGrid .project-identity {
  gap: 0.55rem;
}

#serviceGrid .project-mark {
  width: 4.75rem;
  height: 4.75rem;
}

#serviceGrid .project-identity h3 {
  font-size: 1.35rem;
}

/* Hold two card rows on tall viewports so layer switches don’t collapse height.
   On short screens, skip the empty second row — avoids Contact overlap. */
#projectGrid {
  min-height: 0;
  align-content: flex-start;
}

#productGrid {
  min-height: 15rem;
  align-content: flex-start;
}

@media (min-height: 880px) {
  #projectGrid {
    min-height: calc(15rem * 2 + 1.25rem);
  }

  #productGrid {
    min-height: 15rem;
  }
}

@media (max-height: 800px) {
  #projectGrid > .project-card,
  #productGrid > .project-card {
    height: 12.75rem;
    min-height: 12.75rem;
    max-height: 12.75rem;
    padding: 0.9rem 1rem;
  }

  #projectGrid .project-mark,
  #productGrid .project-mark {
    width: 3rem;
    height: 3rem;
  }

  #services.slide,
  #products.slide,
  #projects.slide {
    padding-top: clamp(1.5rem, 3.5vh, 2.5rem);
  }

  .section-subnav {
    margin: 0.25rem auto 0.75rem;
    min-height: 2rem;
  }
}

#serviceGrid {
  min-height: 18.5rem;
  align-content: flex-start;
}

.project-card--link .project-card__ext {
  position: absolute;
  top: 0.85rem;
  right: 0.85rem;
  width: 14px;
  height: 14px;
  color: var(--ink-soft);
  opacity: 0.7;
  pointer-events: none;
}
.project-card--link:hover .project-card__ext,
.project-card--link:focus-visible .project-card__ext {
  color: var(--ink);
  opacity: 1;
}
.project-card:hover,
.project-card:focus-visible {
  transform: translateY(-3px);
  border-color: transparent;
  background-image:
    linear-gradient(var(--paper), var(--paper)),
    var(--card-rim);
  background-origin: border-box;
  background-clip: padding-box, border-box;
  box-shadow: 0 12px 28px rgba(28, 36, 48, 0.1);
  outline: none;
}
.project-card.is-selected {
  border-color: transparent;
  background-image:
    linear-gradient(var(--paper), var(--paper)),
    var(--card-rim);
  background-origin: border-box;
  background-clip: padding-box, border-box;
  box-shadow: 0 14px 32px rgba(28, 36, 48, 0.12);
}
@media (prefers-reduced-motion: reduce) {
  .project-card:hover,
  .project-card:focus-visible {
    transform: none;
  }
}
.project-card.placeholder {
  border-style: dashed;
  background: transparent;
  background-image: none;
}
.project-card[hidden] {
  display: none;
}

.layer-tab {
  display: inline-flex;
  align-items: center;
  padding: 0.32rem 0.85rem;
  border-radius: 999px;
  border: 1.5px solid var(--line);
  background: var(--paper);
  color: var(--ink);
  font: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 160ms ease, border-color 160ms ease, color 160ms ease;
}

.layer-tab--protocol {
  border-color: color-mix(in srgb, var(--sea) 55%, var(--line));
  color: var(--sea);
  background: color-mix(in srgb, var(--sea) 10%, var(--paper));
}
.layer-tab--protocol.is-active {
  background: var(--sea);
  border-color: var(--sea);
  color: var(--paper);
}

.layer-tab--mainnet {
  border-color: color-mix(in srgb, var(--sea) 55%, var(--line));
  color: var(--sea);
  background: color-mix(in srgb, var(--sea) 10%, var(--paper));
}
.layer-tab--mainnet.is-active {
  background: var(--sea);
  border-color: var(--sea);
  color: var(--paper);
}

.layer-tab--testnet {
  border-color: color-mix(in srgb, var(--horizon) 65%, var(--line));
  color: color-mix(in srgb, var(--horizon) 55%, var(--ink));
  background: color-mix(in srgb, var(--horizon) 16%, var(--paper));
}
.layer-tab--testnet.is-active {
  background: var(--horizon);
  border-color: var(--horizon);
  color: var(--ink);
}

.layer-tab--clearance {
  border-color: color-mix(in srgb, var(--horizon) 65%, var(--line));
  color: color-mix(in srgb, var(--horizon) 70%, var(--ink));
  background: color-mix(in srgb, var(--horizon) 18%, var(--paper));
}
.layer-tab--clearance.is-active {
  /* horizon is light  -  keep dark label for contrast */
  background: var(--horizon);
  border-color: var(--horizon);
  color: var(--ink);
}

.layer-tab--primitives {
  border-color: color-mix(in srgb, var(--sky) 55%, var(--line));
  color: var(--sky);
  background: color-mix(in srgb, var(--sky) 12%, var(--paper));
}
.layer-tab--primitives.is-active {
  background: var(--sky);
  border-color: var(--sky);
  color: var(--paper);
}

.layer-tab--modules {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--line));
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, var(--paper));
}
.layer-tab--modules.is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--paper);
}

.layer-tab:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}

/* Design placeholder: icon isn't a real brand mark yet (see
   docs/ops/release-runbook.md). Dashed ring + caption make it obvious
   which cards still need a designed logo. Drop both once art lands. */
.project-mark.mark-placeholder {
  border: 1.5px dashed color-mix(in srgb, var(--ink) 40%, transparent);
  border-radius: 50%;
  padding: 5px;
  opacity: 0.7;
}
.mark-todo {
  margin: 0.35rem 0 0;
  text-align: center;
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--ink) 55%, transparent);
}

/* Publish gate: card stays visible and clickable (page never looks empty,
   and visitors can still read the details)  -  only the "Coming soon" badge
   marks it as not shipped yet. See published.json. Its modal's own action
   buttons (Site/Docs/Code) are what actually gate to a greyed disabled button,
   independent of this card-level badge. */
.project-card.is-coming-soon {
  opacity: 0.88;
}
.soon-badge {
  position: absolute;
  top: 0.85rem;
  right: 0.85rem;
  font-size: 0.68rem;
  font-weight: 600;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: color-mix(in srgb, var(--soon) 18%, var(--paper));
  border: 1px solid color-mix(in srgb, var(--soon) 55%, var(--line));
  color: var(--soon);
}

/* Identity: mark above name, centered */
.project-identity {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.55rem;
}
.project-mark {
  width: 4.75rem;
  height: 4.75rem;
  border: 0;
  background: transparent;
  flex-shrink: 0;
  object-fit: contain;
}
.project-identity h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.project-lede {
  margin: 0.85rem 0 0;
  color: var(--ink-soft);
  font-size: 0.95rem;
  line-height: 1.5;
  flex: 1 1 auto;
  min-height: 0;
  text-align: center;
}

#projectGrid .project-lede,
#productGrid .project-lede {
  margin-top: 0.45rem;
  font-size: 0.88rem;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 5;
  line-clamp: 5;
  overflow: hidden;
}

#serviceGrid .project-lede {
  margin-top: 0.85rem;
  font-size: 0.95rem;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 4;
  line-clamp: 4;
  overflow: hidden;
}

/* -- Project detail modal -- */
.modal {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}
.modal[hidden] { display: none; }

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(20, 22, 26, 0.5);
  backdrop-filter: blur(2px);
  opacity: 0;
  transition: opacity 200ms ease;
}
.modal.open .modal-backdrop { opacity: 1; }

.modal-panel {
  position: relative;
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 32rem;
  max-height: 85vh;
  overflow-y: auto;
  background: var(--paper);
  border-radius: var(--radius);
  box-shadow: 0 24px 64px rgba(20, 22, 26, 0.28);
  padding: 2rem;
  transform: translateY(10px) scale(0.98);
  opacity: 0;
  transition: transform 220ms var(--ease), opacity 220ms var(--ease);
}
.modal.open .modal-panel {
  transform: translateY(0) scale(1);
  opacity: 1;
}

.modal-close {
  position: absolute;
  top: 1.1rem;
  right: 1.1rem;
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-soft);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 50%;
  cursor: pointer;
  z-index: 1;
}
.modal-close svg { width: 12px; height: 12px; }
.modal-close:hover,
.modal-close:focus-visible {
  color: var(--ink);
  border-color: transparent;
  background-image:
    linear-gradient(var(--paper), var(--paper)),
    var(--hue-rim);
  background-origin: border-box;
  background-clip: padding-box, border-box;
  outline: none;
}

/* Mark + title centered */
.modal-top {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding-right: 2rem;
  min-height: 2.5rem;
}
.modal-title-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  min-width: 0;
}
.modal-top h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-align: left;
}
.modal-mark {
  width: 4.5rem;
  height: 4.5rem;
  object-fit: contain;
  background: transparent;
  flex-shrink: 0;
}
.modal-mark[hidden] {
  display: none;
}

.modal-section {
  margin-top: 1.15rem;
}
.modal-section p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.55;
}

.privacy-footnote {
  margin: 0.55rem 0 0;
  font-size: 0.62rem;
  line-height: 1.35;
  color: var(--ink-soft);
  opacity: 0.75;
}
.modal-footnote {
  margin-top: 0.75rem;
  font-size: 0.58rem;
}
.modal-footnote[hidden] {
  display: none;
}

.modal-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  margin-top: auto;
  padding-top: 1.75rem;
}

/* Status CTA in the action row  -  same footprint as Docs / GitHub */
.modal-actions .btn.pill-cta {
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.78rem;
  border: 1.5px solid var(--line);
}
.modal-actions .btn.pill-cta.live {
  background: color-mix(in srgb, var(--ok) 18%, var(--paper));
  border-color: color-mix(in srgb, var(--ok) 55%, var(--line));
  color: var(--ok);
}
.modal-actions .btn.pill-cta.demo {
  background: color-mix(in srgb, var(--demo) 18%, var(--paper));
  border-color: color-mix(in srgb, var(--demo) 55%, var(--line));
  color: var(--demo);
}
.modal-actions .btn.pill-cta.soon {
  background: color-mix(in srgb, var(--soon) 18%, var(--paper));
  border-color: color-mix(in srgb, var(--soon) 55%, var(--line));
  color: var(--soon);
}
.modal-actions .btn.modal-action-disabled,
.modal-actions .btn.modal-action-disabled:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
  background: color-mix(in srgb, var(--ink) 6%, var(--paper));
  border: 1.5px solid color-mix(in srgb, var(--ink) 18%, var(--line));
  color: color-mix(in srgb, var(--ink) 55%, transparent);
  box-shadow: none;
}