:root {
  --bg: #e9eef4;
  --bg-deep: #d7e0ea;
  --panel: rgba(250, 252, 255, 0.92);
  --panel-strong: #ffffff;
  --hero: #101827;
  --hero-2: #1a2940;
  --ink: #10202f;
  --muted: #516171;
  --line: rgba(16, 32, 47, 0.12);
  --line-strong: rgba(16, 32, 47, 0.2);
  --accent: #3389ea;
  --accent-2: #159a8c;
  --accent-soft: rgba(51, 137, 234, 0.12);
  --warn: #b56d16;
  --shadow: 0 18px 48px rgba(20, 34, 51, 0.12);
  --radius: 18px;
  --radius-sm: 12px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

html {
  background:
    radial-gradient(circle at top left, rgba(51, 137, 234, 0.12), transparent 26rem),
    radial-gradient(circle at top right, rgba(21, 154, 140, 0.08), transparent 28rem),
    linear-gradient(180deg, #f5f8fb 0%, var(--bg) 100%);
  color: var(--ink);
  font-family: "Avenir Next", "Segoe UI", sans-serif;
}

body {
  min-height: 100vh;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.3) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.3) 1px, transparent 1px);
  background-size: 32px 32px;
}

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

.site-shell {
  width: min(1180px, calc(100vw - 2rem));
  margin: 0 auto;
  padding: 1.25rem 0 4rem;
}

.hero,
.panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(280px, 0.9fr);
  gap: 1.4rem;
  padding: 1.6rem;
  background:
    linear-gradient(135deg, rgba(51, 137, 234, 0.18), transparent 42%),
    linear-gradient(160deg, var(--hero) 0%, var(--hero-2) 100%);
  color: #eef5fd;
  overflow: hidden;
  position: relative;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto -7rem -9rem auto;
  width: 22rem;
  height: 22rem;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(51, 137, 234, 0.24), transparent 70%);
}

.hero-copy,
.hero-sheet {
  position: relative;
  z-index: 1;
}

.eyebrow {
  margin: 0 0 0.55rem;
  text-transform: uppercase;
  letter-spacing: 0.13em;
  font-size: 0.75rem;
  font-weight: 700;
  color: #86c5ff;
}

h1,
h2,
h3,
.sheet-row strong,
.tag,
.meta-pill {
  font-family: "DIN Alternate", "Avenir Next Condensed", "Franklin Gothic Medium", sans-serif;
}

h1 {
  margin: 0;
  font-size: clamp(2.5rem, 6vw, 4.7rem);
  line-height: 0.93;
  max-width: 10.5ch;
}

.lead {
  margin: 1rem 0 0;
  max-width: 62ch;
  font-size: 1.05rem;
  line-height: 1.72;
  color: rgba(238, 245, 253, 0.88);
}

.hero-note {
  margin: 0.9rem 0 0;
  max-width: 62ch;
  color: rgba(238, 245, 253, 0.72);
  line-height: 1.68;
}

.hero-actions {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin-top: 1.4rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.9rem;
  padding: 0 1.2rem;
  border-radius: 999px;
  border: 1px solid transparent;
  text-decoration: none;
  font-weight: 700;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button.primary {
  background: #eef5fd;
  color: var(--hero);
}

.button.secondary {
  background: transparent;
  border-color: rgba(238, 245, 253, 0.26);
  color: #eef5fd;
}

.hero-sheet {
  align-self: stretch;
  padding: 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(238, 245, 253, 0.16);
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
}

.sheet-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.8rem 0;
  border-bottom: 1px solid rgba(238, 245, 253, 0.12);
}

.sheet-row:last-child {
  border-bottom: 0;
}

.sheet-label {
  color: rgba(238, 245, 253, 0.72);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.76rem;
}

.sheet-row strong {
  text-align: right;
  font-size: 0.96rem;
}

.main-grid {
  display: grid;
  gap: 1rem;
  margin-top: 1rem;
}

.panel {
  padding: 1.35rem;
  background: var(--panel);
  backdrop-filter: blur(10px);
}

.panel-wide {
  padding: 1.5rem;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 320ms ease, transform 320ms ease;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

.section-head {
  margin-bottom: 1rem;
}

.section-head h2 {
  margin: 0;
  font-size: clamp(1.45rem, 3vw, 2.4rem);
  line-height: 1.06;
}

.section-head p {
  margin-top: 0;
}

.split-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.principle-list,
.plain-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.principle-list li,
.plain-list li {
  padding: 0.72rem 0;
  border-bottom: 1px solid var(--line);
}

.principle-list li:last-child,
.plain-list li:last-child {
  border-bottom: 0;
}

.showcase-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(290px, 0.75fr);
  gap: 1rem;
  align-items: start;
}

.showcase-frame {
  margin: 0;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  background: #0e1624;
}

.showcase-frame img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.showcase-copy {
  display: grid;
  gap: 1rem;
}

.showcase-meta h3 {
  margin: 0.3rem 0 0;
  font-size: 1.65rem;
}

.showcase-meta p {
  margin: 0.8rem 0 0;
  color: var(--muted);
  line-height: 1.68;
}

.meta-pill,
.tag {
  display: inline-flex;
  align-items: center;
  min-height: 1.8rem;
  padding: 0 0.7rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid rgba(51, 137, 234, 0.18);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
}

.tag-warn {
  background: rgba(181, 109, 22, 0.12);
  border-color: rgba(181, 109, 22, 0.18);
  color: var(--warn);
}

.thumb-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
}

.shot-thumb {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--panel-strong);
  border-radius: 14px;
  padding: 0.55rem;
  text-align: left;
  cursor: pointer;
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.shot-thumb:hover {
  transform: translateY(-1px);
}

.shot-thumb.is-active {
  border-color: rgba(51, 137, 234, 0.34);
  box-shadow: 0 0 0 1px rgba(51, 137, 234, 0.14);
}

.shot-thumb img {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 10px;
  object-fit: cover;
  border: 1px solid var(--line);
}

.shot-thumb span {
  display: block;
  margin-top: 0.55rem;
  font-weight: 700;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.chip {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--panel-strong);
  border-radius: 999px;
  min-height: 2.25rem;
  padding: 0 0.9rem;
  cursor: pointer;
  font-weight: 700;
  color: var(--ink);
}

.chip.is-active {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: rgba(51, 137, 234, 0.2);
}

.status-grid,
.links-grid,
.apps-grid {
  display: grid;
  gap: 0.9rem;
  margin-top: 1rem;
}

.status-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.links-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.status-card,
.link-card {
  min-height: 9.4rem;
  padding: 1rem;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(248, 251, 255, 0.76));
}

.status-card.is-hidden {
  display: none;
}

.status-card h3,
.link-card h3,
.app-head h3 {
  margin: 0;
  font-size: 1.16rem;
}

.status-card p,
.link-card p,
.app-copy p,
.split-grid p {
  color: var(--muted);
  line-height: 1.66;
}

.stack {
  display: grid;
  gap: 0.7rem;
}

.stack-row {
  padding: 0.85rem 1rem;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(244, 248, 252, 0.84));
  font-family: "SFMono-Regular", "Menlo", "Monaco", monospace;
  font-size: 0.92rem;
}

.apps-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.app-card {
  overflow: hidden;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(246, 249, 252, 0.84));
}

.app-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-bottom: 1px solid var(--line);
}

.app-copy {
  padding: 1rem;
}

.app-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
}

.code-card {
  position: relative;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: #0d1622;
  overflow: hidden;
}

.code-card pre {
  margin: 0;
  padding: 1rem 1rem 1.2rem;
  overflow: auto;
}

.code-card code {
  color: #d8e4f1;
  font-family: "SFMono-Regular", "Menlo", "Monaco", monospace;
  font-size: 0.92rem;
  line-height: 1.7;
}

.copy-button {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  appearance: none;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.08);
  color: white;
  border-radius: 999px;
  min-height: 2.2rem;
  padding: 0 0.9rem;
  cursor: pointer;
  font-weight: 700;
}

.copy-source {
  position: absolute;
  inset: auto auto auto -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.inline-link {
  color: var(--accent);
  font-weight: 700;
  text-decoration: none;
}

.inline-link:hover {
  text-decoration: underline;
}

@media (max-width: 1024px) {
  .hero,
  .showcase-grid,
  .split-grid,
  .apps-grid,
  .status-grid {
    grid-template-columns: 1fr;
  }

  .hero-sheet {
    order: -1;
  }
}

@media (max-width: 720px) {
  .site-shell {
    width: min(100vw - 1rem, 1180px);
    padding-top: 0.5rem;
  }

  .hero,
  .panel,
  .panel-wide {
    padding: 1rem;
  }

  .thumb-grid {
    grid-template-columns: 1fr 1fr;
  }

  .links-grid {
    grid-template-columns: 1fr;
  }

  h1 {
    max-width: none;
  }
}