/* =========================
   Blox Website — Colorful Block Theme
   Palette derived from the hero banner artwork so the whole site
   reads as one piece: the same navy ground, the same swoosh
   colours, and the same plastic-block highlights.
   ========================= */
:root {
  /* Navy family, sampled from the hero artwork */
  --bg-0: #03142f;
  --bg-1: #08203f;
  --surface: rgba(255, 255, 255, 0.055);
  --surface-2: rgba(255, 255, 255, 0.09);
  --surface-strong: rgba(255, 255, 255, 0.12);
  --border: rgba(140, 190, 255, 0.14);
  --border-strong: rgba(150, 200, 255, 0.26);

  --text: #f4f9ff;
  --text-2: #c3d4ea;
  --text-3: #8fa6c4;

  /* Swoosh + block colours, straight from the hero artwork */
  --red: #f4485c;
  --green: #24cc48;
  --blue: #189cfc;
  --yellow: #fcd824;
  --purple: #a855f7;
  --orange: #ff9a2e;

  /* Light/dark stops of each plastic block, for the shared gradients */
  --red-l: #ffb0ba;    --red-d: #b81a36;
  --green-l: #b6f8c8;  --green-d: #0f8a42;
  --blue-l: #a5efff;   --blue-d: #0582b4;
  --yellow-l: #ffe98f; --yellow-d: #b07f00;
  --purple-l: #e2b8ff; --purple-d: #6a17b4;
  --orange-l: #ffcf8a; --orange-d: #d95f0a;

  /* Deeper tones for filled surfaces that carry white text */
  --blue-deep: #2273da;
  --blue-deep-2: #0f3a86;
  --blue-rim: #4aa3ff;

  --glow-red: rgba(244, 72, 92, 0.32);
  --glow-green: rgba(36, 204, 72, 0.30);
  --glow-blue: rgba(24, 156, 252, 0.32);
  --glow-yellow: rgba(252, 216, 36, 0.30);
  --glow-purple: rgba(168, 85, 247, 0.30);
  --glow-orange: rgba(255, 154, 46, 0.30);

  --radius: 20px;
  --radius-sm: 12px;
  --radius-pill: 999px;
  --transition: 240ms cubic-bezier(0.2, 0.8, 0.2, 1);
  --shadow: 0 30px 70px -24px rgba(0, 0, 0, 0.7);
  --shadow-sm: 0 10px 28px -8px rgba(0, 0, 0, 0.5);

  --container: 1120px;
  --container-narrow: 820px;
  --header-h: 74px;

  /* Navy sampled from the banner artwork — the hero's own ground */
  --hero-navy: #01254a;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }
body {
  margin: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 15% -10%, rgba(24, 156, 252, 0.20), transparent 60%),
    radial-gradient(900px 500px at 90% 10%, rgba(244, 72, 92, 0.16), transparent 60%),
    radial-gradient(1000px 700px at 50% 110%, rgba(252, 216, 36, 0.12), transparent 60%),
    linear-gradient(180deg, var(--bg-0), var(--bg-1));
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* subtle pixel grid overlay */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -2;
  background-image:
    linear-gradient(rgba(140, 190, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(140, 190, 255, 0.05) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.container-narrow {
  max-width: var(--container-narrow);
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }

/* Hidden SVG holding shared gradients/filter defs.
   Must not affect layout: it is a replaced inline element, so it still
   creates a line box unless it is taken out of flow. */
.svg-defs {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
  pointer-events: none;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(3, 20, 47, 0.78);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 0;
  gap: 1rem;
  min-height: var(--header-h);
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text);
}
.logo-mark {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--blue), var(--purple));
  box-shadow: 0 6px 16px -6px var(--glow-blue);
  position: relative;
  overflow: hidden;
}
.logo-mark::after {
  content: "";
  position: absolute;
  inset: 6px;
  border-radius: 4px;
  background: conic-gradient(from 0deg, var(--yellow), var(--green), var(--blue), var(--red), var(--yellow));
}

.nav {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}
.nav a {
  color: var(--text-2);
  font-size: 0.95rem;
  font-weight: 700;
  transition: color var(--transition);
}
.nav a:hover { color: var(--text); }

/* Mobile menu toggle (hidden on desktop) */
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  padding: 0.4rem 0.6rem;
  border: none;
  background: transparent;
  color: var(--text);
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
}
/* ---------- Hero ---------- */
.cta-group {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 1rem 1.8rem;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 1rem;
  text-align: center;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition);
  font-family: inherit;
  position: relative;
  overflow: hidden;
}
.btn:active { transform: scale(0.98); }
.btn::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 0%, rgba(255,255,255,0.22) 50%, transparent 100%);
  transform: translateX(-120%);
  transition: transform 600ms ease;
}
.btn:hover::after { transform: translateX(120%); }

.btn-primary {
  /* Brighter face + a bright rim + a strong blue glow, so the button reads
     clearly against the navy hero it sits on. White text stays AA on both
     ends of the gradient (4.63:1 lightest, 10.66:1 darkest). */
  background: linear-gradient(135deg, var(--blue-deep), var(--blue-deep-2));
  border-color: var(--blue-rim);
  color: #fff;
  box-shadow:
    0 14px 34px -8px var(--glow-blue),
    0 0 0 1px var(--blue-rim);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow:
    0 20px 46px -8px var(--glow-blue),
    0 0 0 2px var(--blue-rim);
}
.btn-secondary {
  /* A translucent light plate with a bright rim: clearly secondary to the
     primary, but unmistakable against the navy. */
  background: rgba(140, 190, 255, 0.14);
  border-color: rgba(160, 210, 255, 0.5);
  color: var(--text);
  box-shadow: 0 10px 26px -12px rgba(0, 0, 0, 0.6);
}
.btn-secondary:hover {
  background: rgba(150, 200, 255, 0.22);
  border-color: rgba(180, 220, 255, 0.7);
  transform: translateY(-2px);
}

/* play badge */
.btn .play-icon {
  width: 20px;
  height: 20px;
  border-radius: 4px;
  background: #fff;
  display: inline-grid;
  place-items: center;
  color: #0f172a;
  font-weight: 900;
  font-size: 0.7rem;
}

/* ---------- Section heads ---------- */
.section {
  padding: 5rem 0;
  scroll-margin-top: var(--header-h);
}
.section-head {
  text-align: center;
  margin-bottom: 3rem;
}
.section-head h2 {
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -1px;
  margin: 0 0 0.75rem;
}
.section-head p {
  color: var(--text-3);
  max-width: 620px;
  margin: 0 auto;
  font-size: 1.05rem;
}

/* ---------- Pieces grid ---------- */
.piece-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.25rem;
}
.piece-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.6rem 1.4rem 1.4rem;
  text-align: center;
  backdrop-filter: blur(8px);
  transition: transform var(--transition), border-color var(--transition), background var(--transition);
  opacity: 0;
  transform: translateY(16px);
}
.piece-card.is-visible {
  opacity: 1;
  transform: none;
  transition: opacity 600ms ease, transform 600ms ease, border-color var(--transition), background var(--transition);
}
.piece-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-strong);
  background: var(--surface-2);
}
.piece-art {
  height: 110px;
  display: grid;
  place-items: center;
  margin-bottom: 1rem;
}
.piece {
  width: auto;
  height: auto;
  max-width: 96px;
  max-height: 96px;
  filter: drop-shadow(0 10px 18px rgba(0, 0, 0, 0.5));
}

/* Showcase pieces use the same gradient faces as the hero blocks */
.piece rect {
  fill: currentColor;
  stroke: rgba(0, 0, 0, 0.4);
  stroke-width: 2px;
  stroke-linejoin: round;
}
.piece-red rect { fill: url(#p-red); }
.piece-green rect { fill: url(#p-green); }
.piece-blue rect { fill: url(#p-blue); }
.piece-yellow rect { fill: url(#p-yellow); }
.piece-purple rect { fill: url(#p-purple); }
.piece-orange rect { fill: url(#p-orange); }

/* Specular bevel, matching the lit-plastic look of the hero artwork */
.piece-art svg.piece {
  filter: url(#p-plastic) drop-shadow(0 10px 18px rgba(0, 0, 0, 0.5));
}

.piece-red { color: var(--red); }
.piece-green { color: var(--green); }
.piece-blue { color: var(--blue); }
.piece-yellow { color: var(--yellow); }
.piece-purple { color: var(--purple); }
.piece-orange { color: var(--orange); }

.piece-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0 0 0.35rem;
}
.piece-card p {
  color: var(--text-3);
  font-size: 0.92rem;
  margin: 0;
}

/* ---------- Features ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}
.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem 1.3rem;
  transition: transform var(--transition), border-color var(--transition), background var(--transition);
  opacity: 0;
  transform: translateY(16px);
}
.feature-card.is-visible {
  opacity: 1;
  transform: none;
  transition: opacity 600ms ease, transform 600ms ease;
}
.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  background: var(--surface-2);
}
.feature-card .feature-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  margin-bottom: 0.9rem;
  background: var(--surface-2);
  border: 1px solid var(--border);
}
.feature-card .feature-icon .mini-piece {
  width: 22px;
  height: 22px;
  border-radius: 4px;
  background: currentColor;
  box-shadow:
    inset 0 2px 0 rgba(255, 255, 255, 0.4),
    inset 0 -2px 0 rgba(0, 0, 0, 0.28);
}
.feature-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0 0 0.4rem;
}
.feature-card p {
  color: var(--text-3);
  font-size: 0.92rem;
  margin: 0;
  line-height: 1.6;
}

/* colored icon variants */
.icon-red { color: var(--red); }
.icon-green { color: var(--green); }
.icon-blue { color: var(--blue); }
.icon-yellow { color: var(--yellow); }
.icon-purple { color: var(--purple); }
.icon-orange { color: var(--orange); }

/* ---------- Steps ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  counter-reset: step;
}
.step-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 1.3rem;
  position: relative;
  opacity: 0;
  transform: translateY(16px);
}
.step-card.is-visible {
  opacity: 1;
  transform: none;
  transition: opacity 600ms ease, transform 600ms ease;
}
.step-card .step-num {
  font-size: 0.8rem;
  font-weight: 800;
  color: var(--text-3);
  letter-spacing: 1px;
  margin-bottom: 0.6rem;
  background: linear-gradient(135deg, var(--blue), #c084fc);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  width: fit-content;
}
.step-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0 0 0.4rem;
}
.step-card p {
  color: var(--text-3);
  font-size: 0.92rem;
  margin: 0;
}

/* ---------- Privacy card ---------- */
.policy-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.6rem 2.2rem;
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
  margin-bottom: 2rem;
}
.policy-card header.policy-header {
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 1.25rem;
}
.policy-card h1 {
  font-size: clamp(1.7rem, 3.5vw, 2.1rem);
  font-weight: 800;
  margin: 0 0 0.6rem;
  letter-spacing: -0.5px;
}
.policy-card header.policy-header p {
  margin: 0.2rem 0;
  color: var(--text-2);
  font-size: 0.95rem;
}
.policy-card section { margin-bottom: 1.5rem; }
.policy-card h2 {
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0 0 0.6rem;
  color: var(--text);
}
.policy-card p, .policy-card li {
  color: var(--text-2);
  font-size: 0.975rem;
  line-height: 1.7;
}
.policy-card ul {
  padding-left: 1.25rem;
  margin: 0 0 1rem;
}
.policy-card li { margin-bottom: 0.4rem; }
.policy-card strong { color: var(--text); }
.policy-card a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.policy-card a:hover { color: var(--yellow); }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  background: rgba(3, 20, 47, 0.66);
  backdrop-filter: blur(12px);
  padding: 2.5rem 0;
  margin-top: 2rem;
}
.footer-inner {
  text-align: center;
  color: var(--text-3);
  font-size: 0.875rem;
}
.footer-inner p { margin: 0.35rem 0; }
.footer-inner a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.footer-inner a:hover { color: var(--yellow); }

/* ---------- Responsive ---------- */
@media (max-width: 760px) {
  .section { padding: 3.5rem 0; }
  .policy-card { padding: 1.6rem 1.2rem; }

  /* Performance: reduce paint/compositing cost on mobile */
  body::before { display: none; }
  .site-header,
  .site-footer,
  .piece-card,
  .feature-card,
  .step-card,
  .policy-card {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
  .site-header { background: rgba(3, 20, 47, 0.96); }
}
@media (max-width: 480px) {
  .nav { gap: 1rem; }
}

/* respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
  .piece-card, .feature-card, .step-card { opacity: 1; transform: none; }
}

/* ---------- Mobile navbar ---------- */
@media (max-width: 760px) {
  .header-inner {
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem;
  }
  .logo { flex: 1 1 auto; }
  .nav-toggle {
    display: inline-flex;
    position: relative;
    z-index: 301;
  }
  .nav {
    display: none;
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100vh;
    height: 100dvh;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin: 0;
    padding: 2rem 1.5rem;
    background: var(--bg-0);
    border: none;
    border-bottom: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    z-index: 300;
    overflow-y: auto;
  }
  .container { padding-inline: 1rem; }
  .nav.is-open { display: flex; }
  .nav a {
    display: block;
    width: 100%;
    max-width: 320px;
    text-align: center;
    padding: 1rem 1.25rem;
    font-size: 1.25rem;
    font-weight: 700;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
  }
  .nav a:hover { color: var(--text); background: var(--surface-2); }
}
/* Prevent background scroll when menu open */
body.nav-open { overflow: hidden; }

/* =========================
   Hero - glossy banner artwork
   Hand-authored vector art (swooshes + 3D blocks) with the
   wordmark layered on top, art-directed per breakpoint.
   The CTA row sits on the artwork's own navy so it reads as
   part of the hero rather than a separate block below it.
   ========================= */

.hero {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  min-height: 0;
  margin: 0;
  padding: 0;
  text-align: center;
  background: var(--hero-navy);
  overflow: hidden;
}

/* Visually hidden, but available to screen readers */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Artwork band ------------------------------------------------------ */
.hero-art-wrap {
  position: relative;
  display: block;
  width: 100%;
  overflow: hidden;
}

/* The vector backdrop: swooshes + glossy 3D blocks (inlined SVG) */
.hero-svg {
  display: block;
  width: 100%;
  height: auto;
}

/* Only one art direction is shown at a time */
.hero-svg--mobile { display: none; }
@media (max-width: 700px) {
  .hero-svg--desktop { display: none; }
  .hero-svg--mobile { display: block; }
}

/* Merged 3D blocks: each is one solid path, no cell seams */
.b-side { fill: #04101f; opacity: 0.9; }
.b-gloss { fill: url(#d-gloss-fill); }
.b-rim { fill: url(#d-rim-fill); }

.hero-svg--mobile .b-gloss { fill: url(#m-gloss-fill); }
.hero-svg--mobile .b-rim { fill: url(#m-rim-fill); }

/* Pointer parallax: script.js sets --px/--py (translate), --rot and --sc.
   The transform is in SVG user units, so the values are scaled by the script
   to keep the effect identical on phone and desktop. */
.hero-block {
  transform: translate(var(--px, 0px), var(--py, 0px)) rotate(var(--rot, 0deg)) scale(var(--sc, 1));
  transform-box: fill-box;
  transform-origin: center;
  transition: transform 260ms cubic-bezier(0.2, 0.8, 0.2, 1);
  will-change: transform;
}

/* Cursor spotlight over the hero art */
.hero-art-wrap::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  background: radial-gradient(
    340px circle at var(--mx, 50%) var(--my, 50%),
    rgba(120, 200, 255, 0.16),
    transparent 70%
  );
  opacity: 0;
  transition: opacity 300ms ease;
}
.hero-art-wrap.is-lit::after { opacity: 1; }

/* The wordmark, centred over the backdrop */
.hero-heading {
  position: absolute;
  inset: 0;
  margin: 0;
  padding: 0;
  z-index: 2;
  pointer-events: none;
}

.hero-wordmark {
  position: absolute;
  top: 42%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: block;
  width: 54%;
  height: auto;
  filter: drop-shadow(0 18px 34px rgba(0, 0, 0, 0.55));
}

/* CTA row, sitting on the artwork's own navy shelf */
.hero-cta {
  position: absolute;
  left: 50%;
  bottom: 13.5%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  width: max-content;
  max-width: 90%;
}

/* Mouse parallax (driven by script.js) - fine-pointer devices only.
   The slight bleed keeps the offset from exposing an edge. */
@media (hover: hover) and (pointer: fine) {
  .hero-art {
    width: calc(100% + 32px);
    margin-left: -16px;
    transition: transform 240ms cubic-bezier(0.2, 0.8, 0.2, 1);
    will-change: transform;
  }
}

/* ---------- Hero responsive ---------- */
@media (max-width: 900px) {
  .hero-wordmark { width: 58%; }
}
@media (max-width: 700px) {
  /* Portrait layout: logo in the upper third, buttons in the lower third,
     with clean navy between them. */
  .hero-wordmark { top: 29%; width: 72%; }
  .hero-cta { bottom: 15%; gap: 0.6rem; }
  .hero-cta .btn { padding: 0.7rem 1.1rem; font-size: 0.9rem; }
}
@media (max-width: 480px) {
  .hero-cta { flex-direction: column; width: auto; max-width: 86%; }
  .hero-cta .btn {
    width: 100%;
    text-align: center;
    padding: 0.8rem 0.9rem;
    font-size: 0.88rem;
    white-space: nowrap;
  }
}