:root {

  --primary: #6eff9e;
  --on-primary: #003912;
  --primary-container: #005224;
  --on-primary-container: #8cffb7;
  --secondary: #b8ccba;
  --on-secondary: #203527;
  --secondary-container: #364b3c;
  --on-secondary-container: #d4e8d5;
  --tertiary: #a1ced2;
  --on-tertiary: #023638;
  --tertiary-container: #214d4f;
  --on-tertiary-container: #bdeaee;
  --error: #ffb4ab;
  --error-container: #93000a;
  --on-error-container: #ffdad6;
  --surface: #0d1510;
  --on-surface: #dee4df;
  --on-surface-variant: #c1c9c0;
  --surface-container-lowest: #080f0b;
  --surface-container-low: #151d17;
  --surface-container: #19211b;
  --surface-container-high: #232b25;
  --surface-container-highest: #2e3630;
  --outline: #8b938b;
  --outline-variant: #414942;
  --shape-xs: 4px; --shape-s: 8px; --shape-m: 12px; --shape-l: 16px;
  --shape-xl: 28px; --shape-xxl: 48px; --shape-full: 999px;
  --spring: cubic-bezier(.2, 0, 0, 1);
  --emph: cubic-bezier(.2, 0, 0, 1);
  --emph-decel: cubic-bezier(.05, .7, .1, 1);
  --font: "Google Sans Flex", "Google Sans", "Onest", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
  --gutter: clamp(16px, 4vw, 32px);
  --max: 1200px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; overflow-x: clip; }
body {
  margin: 0;
  background: var(--surface);
  color: var(--on-surface);
  font: 400 16px/1.55 var(--font);
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; border: 0; background: none; cursor: pointer; }
::selection { background: var(--primary); color: var(--on-primary); }
:focus-visible { outline: 3px solid var(--primary); outline-offset: 3px; border-radius: var(--shape-s); }

.msym {
  font-family: "Material Symbols Rounded";
  font-weight: normal; font-style: normal;
  font-size: 24px; line-height: 1;
  display: inline-block; flex: none;
  font-variation-settings: "FILL" 1, "wght" 500, "GRAD" 0, "opsz" 24;
  user-select: none;
}

.wrap { width: min(100% - var(--gutter) * 2, var(--max)); margin-inline: auto; }

.tint {
  position: absolute; inset: 0 0 auto; height: 900px; z-index: -1; pointer-events: none;
  background:
    radial-gradient(60% 55% at 15% 0%, rgba(0, 82, 36, .55), transparent 70%),
    radial-gradient(45% 45% at 95% 10%, rgba(33, 77, 79, .45), transparent 70%);
}

.top {
  position: fixed; top: 12px; left: 50%; z-index: 50;
  transform: translateX(-50%);
  width: min(100% - 24px, 1040px);
  display: flex; align-items: center; gap: 4px;
  padding: 8px 8px 8px 12px;
  border-radius: var(--shape-full);
  background: color-mix(in srgb, var(--surface-container) 82%, transparent);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  transition: transform .45s var(--emph), background .3s;
}
.top.hide { transform: translate(-50%, -150%); }
.logo { display: flex; align-items: center; gap: 12px; min-width: 0; font-weight: 600; font-size: 17px; margin-right: auto; white-space: nowrap; }
.logo img { width: 40px; height: 40px; flex: none; }
.logo span { overflow: hidden; text-overflow: ellipsis; }
.top > .btn { flex: none; }
.icon-btn {
  flex: none; width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center;
  color: var(--on-surface-variant); transition: background .2s, color .2s;
}
.icon-btn:hover { background: rgba(222, 228, 223, .08); color: var(--on-surface); }
.menu-btn { display: none; }
.nav { display: flex; gap: 2px; }
.nav a {
  position: relative; padding: 10px 16px; border-radius: var(--shape-full);
  font-size: 14px; font-weight: 500; color: var(--on-surface-variant);
  transition: color .2s, background .2s;
}
.nav a:hover { color: var(--on-surface); background: rgba(222, 228, 223, .08); }
@media (max-width: 860px) {
  .menu-btn { display: grid; }
  .nav {
    position: absolute; top: calc(100% + 8px); left: 0; right: 0;
    flex-direction: column; gap: 2px; padding: 8px; border-radius: var(--shape-xl);
    background: var(--surface-container-high); box-shadow: 0 12px 32px rgba(0, 0, 0, .45);
    opacity: 0; transform: translateY(-8px) scale(.98); transform-origin: top center; pointer-events: none;
    transition: opacity .2s var(--emph), transform .3s var(--emph);
  }
  .top.open .nav { opacity: 1; transform: none; pointer-events: auto; }
  .nav a { padding: 14px 18px; font-size: 16px; color: var(--on-surface); }
}
@media (max-width: 860px) {
  .top > .btn { order: 2; }
  .menu-btn { order: 3; }
}
@media (max-width: 520px) {
  .top { padding-left: 8px; gap: 6px; }
  .logo span { display: none; }
}

.btn {
  position: relative; overflow: hidden; isolation: isolate;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 56px; padding: 0 28px; border-radius: var(--shape-full);
  font: 500 16px/1 var(--font); letter-spacing: .01em; white-space: nowrap;
  transition: border-radius .25s var(--emph), transform .25s var(--emph), background .2s;
}
.btn .msym { font-size: 22px; }
.btn::before { content: ""; position: absolute; inset: 0; z-index: -1; background: currentColor; opacity: 0; transition: opacity .2s; }
.btn:hover::before { opacity: .08; }
.btn:active { border-radius: 16px; transform: scale(.98); }
.btn:active::before { opacity: .12; }
.btn-l { height: 64px; padding: 0 32px; font-size: 17px; }
.btn-l .msym { font-size: 24px; }
.btn-s { height: 40px; padding: 0 18px; font-size: 14px; }
.btn-s .msym { font-size: 20px; }
.btn-s:active { border-radius: 12px; }
.btn-filled { background: var(--primary); color: var(--on-primary); }
.btn-tonal { background: var(--secondary-container); color: var(--on-secondary-container); }
.btn-outlined { color: var(--primary); box-shadow: inset 0 0 0 1px var(--outline-variant); }
.btn-text { color: var(--primary); padding: 0 16px; }
.btn[disabled] { pointer-events: none; opacity: .8; }
.btn .spin { width: 20px; height: 20px; border: 2.5px solid currentColor; border-right-color: transparent; border-radius: 50%; animation: rot .8s linear infinite; }
@keyframes rot { to { transform: rotate(360deg); } }
.ripple { position: absolute; border-radius: 50%; background: currentColor; opacity: .16; transform: scale(0); pointer-events: none; animation: ripple .6s var(--emph-decel) forwards; z-index: -1; }
@keyframes ripple { to { transform: scale(1); opacity: 0; } }

.chip {
  display: inline-flex; align-items: center; gap: 8px; height: 32px; padding: 0 16px 0 8px;
  border-radius: var(--shape-s); font-size: 14px; font-weight: 500;
  background: var(--surface-container-high); color: var(--on-surface-variant);
}
.chip .msym { font-size: 18px; color: var(--primary); }
.chip.tonal { background: var(--primary-container); color: var(--on-primary-container); }
.chip.tonal .msym { color: var(--on-primary-container); }

section { position: relative; }
.sec { padding-top: clamp(88px, 11vw, 140px); }
.label { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 600; color: var(--primary); letter-spacing: .02em; }
.h2 {
  margin: 12px 0 16px;
  font: 600 clamp(36px, 5.4vw, 64px)/1.04 var(--font); letter-spacing: -.035em;
}
.h2 em { font-style: normal; color: var(--primary); }
.lead { margin: 0; max-width: 640px; color: var(--on-surface-variant); font-size: clamp(16px, 1.5vw, 19px); }
.rv { opacity: 0; transform: translateY(24px); transition: opacity .7s var(--emph-decel), transform .7s var(--emph-decel); transition-delay: var(--d, 0s); }
.rv.in { opacity: 1; transform: none; }

.card {
  position: relative; overflow: hidden; isolation: isolate;
  border-radius: var(--shape-xl);
  background: var(--surface-container);
  transition: border-radius .5s var(--emph), background .25s;
}
.card.rv {
  transition: opacity .8s var(--emph-decel) var(--d, 0s), transform .8s var(--emph-decel) var(--d, 0s),
    border-radius .5s var(--emph), background .25s;
}
.card.hi { background: var(--surface-container-high); }
.card.pc { background: var(--primary-container); color: var(--on-primary-container); }
.card.sc { background: var(--secondary-container); color: var(--on-secondary-container); }
.card.tc { background: var(--tertiary-container); color: var(--on-tertiary-container); }
.card.outlined { background: transparent; box-shadow: inset 0 0 0 1px var(--outline-variant); }

.shape { display: grid; place-items: center; transition: clip-path .6s var(--spring), transform .6s var(--spring); }
.shape.spin { animation: rot 28s linear infinite; }

.code {
  position: relative; margin: 14px 0 0;
  border-radius: var(--shape-l);
  background: var(--surface-container-lowest); overflow: hidden;
}
.code pre { margin: 0; padding: 16px 20px 18px; overflow-x: auto; scrollbar-width: thin; scrollbar-color: var(--outline-variant) transparent; font: 500 13.5px/1.7 var(--mono); color: var(--on-surface); }
.code .cm { color: var(--outline); }
.code .kw { color: var(--primary); }
.code .st { color: var(--tertiary); }
.code-bar {
  display: flex; align-items: center; gap: 8px; padding: 8px 8px 8px 18px;
  background: var(--surface-container-low);
  font: 500 12.5px/1 var(--mono); color: var(--on-surface-variant);
}
.copy {
  margin-left: auto; display: inline-flex; align-items: center; gap: 6px; height: 32px;
  padding: 0 12px 0 10px; border-radius: var(--shape-full); font: 500 13px/1 var(--font); color: var(--primary);
  transition: background .2s, border-radius .3s var(--spring);
}
.copy .msym { font-size: 18px; }
.copy:hover { background: rgba(110, 255, 158, .08); border-radius: var(--shape-s); }
code.i { font: 500 .88em/1 var(--mono); padding: 3px 7px; border-radius: var(--shape-s); background: var(--surface-container-highest); color: var(--on-surface); white-space: nowrap; }

.foot { margin-top: clamp(90px, 11vw, 140px); padding: 56px 0 40px; background: var(--surface-container-lowest); border-radius: var(--shape-xxl) var(--shape-xxl) 0 0; }
.foot-grid { display: grid; grid-template-columns: 1.4fr repeat(2, 1fr); gap: 32px; }
.foot h4 { margin: 0 0 12px; font-size: 14px; font-weight: 600; color: var(--primary); }
.foot ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; }
.foot li a {
  display: inline-flex; align-items: center; gap: 12px; padding: 8px 14px 8px 8px; margin-left: -8px;
  border-radius: var(--shape-full); color: var(--on-surface-variant); transition: background .2s, color .2s;
}
.foot li a .msym { font-size: 20px; }
.foot li a:hover { background: var(--surface-container-high); color: var(--on-surface); }
.foot .brand p { color: var(--on-surface-variant); max-width: 320px; margin: 16px 0 0; }
.foot .bottom { margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--outline-variant); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; color: var(--outline); font-size: 13px; }
@media (max-width: 720px) { .foot-grid { grid-template-columns: 1fr 1fr; } .foot .brand { grid-column: 1 / -1; } }

.toast {
  position: fixed; left: 50%; bottom: 24px; z-index: 80;
  transform: translate(-50%, 160%);
  display: flex; align-items: center; gap: 12px; min-height: 48px; padding: 14px 20px; border-radius: var(--shape-xs);
  background: var(--on-surface); color: var(--surface); font-size: 14px; font-weight: 500;
  box-shadow: 0 6px 20px rgba(0, 0, 0, .4);
  transition: transform .45s var(--spring);
  max-width: calc(100% - 32px);
}
.toast.show { transform: translate(-50%, 0); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
  .rv { opacity: 1; transform: none; }
}