/* ============================================================
   N-Relay promo — design tokens
   Brand palette from the N-Relay app (ui/css/tokens.css): fire orange #ff5a1f.
   One declaration per token via light-dark(); the theme is chosen by color-scheme,
   which follows the OS until [data-theme] pins it.
   ============================================================ */
:root {
  color-scheme: light dark;

  --brand: #ff5a1f;
  --brand-2: #ff7a3d;
  --brand-3: #ffb347;
  /* CTA fill: both stops keep white text above 4.5:1 */
  --cta-a: #d63d0e;
  --cta-b: #c2410c;
  --accent-ink: light-dark(#c2410c, #ff8a5c);
  --accent-soft: light-dark(rgba(255, 90, 31, 0.1), rgba(255, 90, 31, 0.14));

  --bg: light-dark(#faf8f5, #07080a);
  --bg-tint: light-dark(#f4f0ea, #0b0c0f);
  --ink: light-dark(#14161a, #f5f6f7);
  --ink-2: light-dark(#454b55, #c4c9d1);
  --ink-3: light-dark(#5f6570, #8f96a1);
  --line: light-dark(rgba(20, 22, 26, 0.09), rgba(255, 255, 255, 0.08));
  --line-strong: light-dark(rgba(20, 22, 26, 0.15), rgba(255, 255, 255, 0.15));

  --glass: light-dark(rgba(255, 255, 255, 0.58), rgba(26, 28, 34, 0.5));
  --glass-strong: light-dark(rgba(255, 255, 255, 0.84), rgba(18, 20, 25, 0.84));
  --glass-solid: light-dark(#ffffff, #14161b);
  --glass-border: light-dark(rgba(255, 255, 255, 0.85), rgba(255, 255, 255, 0.09));
  --glass-edge: light-dark(rgba(20, 22, 26, 0.06), rgba(255, 255, 255, 0.04));
  --glass-hi: light-dark(rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0.07));
  --shadow-c: light-dark(rgba(30, 36, 60, 0.1), rgba(0, 0, 0, 0.5));
  --shadow-c2: light-dark(rgba(30, 36, 60, 0.05), rgba(0, 0, 0, 0.3));

  /* mockup surfaces (the app UI inside the glass) */
  --s1: light-dark(#ffffff, #0f1013);
  --s2: light-dark(#f5f6f7, #15161a);
  --s3: light-dark(#eceef1, #1c1e23);

  --orb-1: light-dark(rgba(255, 140, 80, 0.26), rgba(255, 90, 31, 0.11));
  --orb-2: light-dark(rgba(255, 196, 120, 0.26), rgba(255, 140, 50, 0.06));
  --orb-3: light-dark(rgba(140, 170, 255, 0.2), rgba(90, 110, 220, 0.1));
  --cta-glow-1: light-dark(rgba(255, 90, 31, 0.18), rgba(255, 90, 31, 0.12));
  --cta-glow-2: light-dark(rgba(255, 179, 71, 0.18), rgba(255, 150, 60, 0.06));
  --hero-glow: light-dark(rgba(255, 90, 31, 0.16), rgba(255, 90, 31, 0.13));
  /* top-light reflection on glass */
  --glass-sheen: light-dark(rgba(255, 255, 255, 0.55), rgba(255, 255, 255, 0.045));

  --font: "Inter", "Segoe UI Variable Text", "Segoe UI", system-ui, -apple-system, "Hiragino Sans", "Noto Sans JP", sans-serif;
  --font-ja: "Inter", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic UI", "Yu Gothic", Meiryo, system-ui, sans-serif;

  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 18px;
  --r-xl: 26px;
  --container: 1200px;
  --gutter: clamp(16px, 4vw, 32px);
  --header-h: 68px;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-io: cubic-bezier(0.65, 0, 0.35, 1);
  --t: 220ms;
}

:root[data-theme="light"] { color-scheme: light; }
:root[data-theme="dark"] { color-scheme: dark; }

/* ============ Base ============ */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--header-h) + 16px); }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}
:lang(ja) body, body:lang(ja) { font-family: var(--font-ja); line-break: strict; }
:lang(hi) { font-family: "Noto Sans Devanagari", "Nirmala UI", "Kohinoor Devanagari", var(--font); }
h1, h2, h3, p, ul, dl, dd, figure { margin: 0; }
ul { padding: 0; list-style: none; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
h1, h2, h3 { line-height: 1.2; font-weight: 700; letter-spacing: -0.02em; text-wrap: balance; }
/* JP headings break only at <wbr> phrase boundaries and punctuation (auto-phrase is Chrome-only) */
:lang(ja) :is(h1, h2, h3) { letter-spacing: 0.01em; line-height: 1.35; word-break: keep-all; overflow-wrap: anywhere; }
:lang(ja) .lead { word-break: auto-phrase; text-wrap: balance; }
/* proportional kana/punctuation spacing for display text (tightens 「」、。 gaps) */
:lang(ja) :is(h1, h2, h3, .lead, .eyebrow, .kicker, .btn, .nav-links a) { font-feature-settings: "palt"; }
p { text-wrap: pretty; }

.i { width: 1.15em; height: 1.15em; flex: none; }
/* contents: no box, so flex containers (buttons, list rows) do not treat it as a separate item */
.nw { display: contents; white-space: nowrap; }
.sr-only {
  position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
:focus-visible { outline: 2px solid var(--accent-ink); outline-offset: 3px; border-radius: 6px; }
#main:focus { outline: none; }

.skip {
  position: fixed; top: 12px; left: 12px; z-index: 100;
  padding: 10px 16px; border-radius: 999px; background: var(--ink); color: var(--bg);
  transform: translateY(-160%); transition: transform var(--t) var(--ease-out);
}
.skip:focus { transform: none; }

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

/* Theme switch: a short colour crossfade, only while the toggle is used. */
.theme-fade, .theme-fade *, .theme-fade *::before, .theme-fade *::after {
  transition: background-color 0.4s ease, color 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease !important;
}

/* ============ Atmosphere (fixed, behind everything) ============ */
.atmosphere { position: fixed; inset: 0; z-index: -1; pointer-events: none; overflow: hidden; }
/* Static on purpose: a moving backdrop forces every glass surface to re-blur each frame. */
.orb { position: absolute; border-radius: 50%; }
.orb-1 { width: 62vmax; height: 62vmax; top: -30vmax; left: -18vmax; background: radial-gradient(closest-side, var(--orb-1), transparent); }
.orb-2 { width: 50vmax; height: 50vmax; top: -12vmax; right: -22vmax; background: radial-gradient(closest-side, var(--orb-2), transparent); }
.orb-3 { width: 56vmax; height: 56vmax; bottom: -34vmax; left: 22vw; background: radial-gradient(closest-side, var(--orb-3), transparent); }

/* ============ Motion ============ */
@keyframes fade-up { from { opacity: 0; transform: translate3d(0, 18px, 0); } }
@keyframes rise { from { transform: translate3d(0, 105%, 0); } }
@keyframes pop { from { opacity: 0; transform: scale(0.6) rotate(-24deg); } }

.h-anim { animation: fade-up 0.9s var(--ease-out) var(--d, 0s) both; }
.h-rise { display: inline-block; animation: rise 1.05s var(--ease-out) var(--d, 0s) both; }

.enhanced [data-reveal] {
  opacity: 0;
  transform: translate3d(0, 28px, 0);
  transition: opacity 0.9s var(--ease-out) var(--d, 0s), transform 1s var(--ease-out) var(--d, 0s);
}
.enhanced [data-reveal].is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition-duration: 0.01ms !important; transition-delay: 0s !important; }
  .enhanced [data-reveal] { opacity: 1; transform: none; }
}

/* ============ Glass ============ */
.glass, .glass-strong {
  position: relative;
  border: 1px solid var(--glass-border);
  border-radius: var(--r-lg);
  box-shadow: 0 1px 0 var(--glass-hi) inset, 0 0 0 1px var(--glass-edge), 0 18px 50px -12px var(--shadow-c), 0 4px 14px var(--shadow-c2);
}
.glass { background: var(--glass); -webkit-backdrop-filter: blur(18px) saturate(150%); backdrop-filter: blur(18px) saturate(150%); }
.glass-strong { background: var(--glass-strong); -webkit-backdrop-filter: blur(24px) saturate(160%); backdrop-filter: blur(24px) saturate(160%); }
/* top-light reflection, painted between the glass fill and its content */
.glass, .glass-strong { isolation: isolate; }
.glass::before, .glass-strong::before {
  content: ""; position: absolute; inset: 0; z-index: -1; border-radius: inherit; pointer-events: none;
  background: linear-gradient(180deg, var(--glass-sheen), transparent 42%);
}
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .glass, .glass-strong { background: var(--glass-solid); }
}

/* ============ Buttons ============ */
.btn {
  --lift: 0px;
  display: inline-flex; align-items: center; justify-content: center; gap: 0.55em;
  min-height: 44px; padding: 0 20px;
  border-radius: 999px; font-weight: 600; font-size: 0.95rem; line-height: 1.2; white-space: nowrap;
  transform: translate3d(0, var(--lift), 0);
  transition: transform var(--t) var(--ease-out), box-shadow var(--t) var(--ease-out), background-color var(--t);
}
.btn .i { transition: transform var(--t) var(--ease-out); }
.btn:hover { --lift: -2px; }
.btn:hover .i:last-child { transform: translateX(3px); }
.btn:active { --lift: 0px; transition-duration: 80ms; }
.btn-sm { min-height: 38px; padding: 0 16px; font-size: 0.875rem; }
.btn-lg { min-height: 52px; padding: 0 26px; font-size: 1rem; }

.btn-primary {
  position: relative; overflow: hidden; isolation: isolate;
  color: #fff;
  background: linear-gradient(135deg, var(--cta-a), var(--cta-b));
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.25) inset, 0 8px 24px -6px rgba(255, 90, 31, 0.55);
}
.btn-primary::after {
  /* light sweep on hover */
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(110deg, transparent 30%, rgba(255, 255, 255, 0.28) 50%, transparent 70%);
  transform: translateX(-120%); transition: transform 0.8s var(--ease-out);
}
.btn-primary:hover { box-shadow: 0 1px 0 rgba(255, 255, 255, 0.25) inset, 0 14px 34px -8px rgba(255, 90, 31, 0.7); }
.btn-primary:hover::after { transform: translateX(120%); }

.btn-glass {
  color: var(--ink);
  background: var(--glass-strong);
  border: 1px solid var(--line-strong);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 var(--glass-hi) inset, 0 6px 18px -8px var(--shadow-c);
}
.btn-glass:hover { border-color: color-mix(in srgb, var(--brand) 45%, var(--line-strong)); }

.btn-store {
  min-height: 56px; padding: 0 22px 0 18px; border-radius: 16px;
  color: light-dark(#fff, #0b0c0f); background: light-dark(#0b0c0f, #f5f6f7);
  box-shadow: 0 10px 28px -10px var(--shadow-c);
}
.btn-store .i { width: 1.5em; height: 1.5em; }
.btn-store span { display: grid; text-align: left; line-height: 1.25; }
.btn-store small { font-size: 0.7rem; font-weight: 500; opacity: 0.75; }

.icon-btn {
  display: inline-grid; place-items: center; width: 42px; height: 42px; border-radius: 999px;
  color: var(--ink-2); border: 1px solid var(--line);
  background: var(--glass);
  transition: color var(--t), border-color var(--t), transform var(--t) var(--ease-out);
}
.icon-btn:hover { color: var(--ink); border-color: var(--line-strong); }
.icon-btn:active { transform: scale(0.94); }
.icon-btn .i { width: 20px; height: 20px; grid-area: 1 / 1; transition: transform 0.5s var(--ease-out), opacity 0.3s; }
/* theme icons: moon offers "dark", sun shows when dark is on */
.i-sun, [aria-pressed="true"] .i-moon { opacity: 0; transform: rotate(-90deg) scale(0.5); }
[aria-pressed="true"] .i-sun { opacity: 1; transform: none; }
.i-close, [aria-expanded="true"] .i-menu { opacity: 0; transform: rotate(90deg) scale(0.5); }
[aria-expanded="true"] .i-close { opacity: 1; transform: none; }

/* ============ Small pieces ============ */
.kicker {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.8rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent-ink);
}
.kicker::before { content: ""; width: 18px; height: 2px; border-radius: 2px; background: linear-gradient(90deg, var(--brand), var(--brand-3)); }
.badge {
  display: inline-block; vertical-align: middle; margin-left: 4px; padding: 2px 9px; border-radius: 999px;
  font-size: 0.7rem; font-weight: 600; letter-spacing: 0.02em; color: var(--accent-ink); background: var(--accent-soft);
}
.lead { font-size: clamp(1.02rem, 0.95rem + 0.35vw, 1.2rem); color: var(--ink-2); line-height: 1.75; }
.section-head { display: grid; gap: 14px; max-width: 760px; margin: 0 auto clamp(40px, 6vw, 72px); text-align: center; justify-items: center; }
.section-head h2 { font-size: clamp(1.85rem, 1.2rem + 2.6vw, 3.1rem); }
:lang(ja) .section-head h2 { font-size: clamp(1.6rem, 1.1rem + 2.1vw, 2.65rem); }
.checks { display: grid; gap: 10px; }
.checks li { display: flex; gap: 10px; align-items: flex-start; color: var(--ink-2); }
.checks .i { margin-top: 0.3em; color: var(--accent-ink); padding: 2px; border-radius: 50%; background: var(--accent-soft); width: 1.1em; height: 1.1em; }
.demo-note, .fine-print, .mock-note { font-size: 0.82rem; color: var(--ink-3); }
.mock-note { margin-top: 18px; text-align: center; font-size: 0.75rem; letter-spacing: 0.04em; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.cta-row.is-left { justify-content: flex-start; }

/* ============ Header ============ */
.site-header { position: sticky; top: 0; z-index: 50; transition: background-color 0.3s, box-shadow 0.3s, border-color 0.3s; border-bottom: 1px solid transparent; }
.site-header.is-scrolled, .site-header.menu-open {
  background: var(--glass-strong);
  -webkit-backdrop-filter: blur(20px) saturate(160%); backdrop-filter: blur(20px) saturate(160%);
  border-bottom-color: var(--line);
  box-shadow: 0 8px 30px -18px var(--shadow-c);
}
.nav-wrap { display: flex; align-items: center; gap: 24px; height: var(--header-h); }
.brand { display: inline-flex; align-items: center; gap: 10px; flex: none; }
.brand .emblem { border-radius: 50%; }
.wordmark { font-weight: 800; font-style: italic; letter-spacing: 0.06em; font-size: 1.08rem; font-family: var(--font); }
.wordmark b { font-weight: 800; }
.nav-links { margin-inline: auto; }
.nav-links ul { display: flex; gap: 4px; }
.nav-links a {
  position: relative; display: block; padding: 8px 14px; border-radius: 999px;
  font-size: 0.92rem; font-weight: 500; color: var(--ink-2); transition: color var(--t), background-color var(--t);
}
.nav-links a:hover { color: var(--ink); background: var(--accent-soft); }
.nav-tools { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.nav-links + .nav-tools { margin-left: 0; }

.lang { display: inline-flex; padding: 3px; border-radius: 999px; border: 1px solid var(--line); background: var(--glass); }
.lang a {
  min-width: 40px; min-height: 34px; display: grid; place-items: center; padding: 0 10px; border-radius: 999px;
  font-size: 0.8rem; font-weight: 600; color: var(--ink-3); transition: color var(--t), background-color var(--t);
}
.lang a:hover { color: var(--ink); }
.lang a[aria-current] { color: var(--ink); background: var(--glass-strong); box-shadow: 0 1px 4px var(--shadow-c2), 0 0 0 1px var(--line); }

.show-sm { display: none; }
.mobile-menu { margin: 0 var(--gutter) 12px; padding: 12px; display: grid; gap: 14px; border-radius: var(--r-lg); animation: fade-up 0.35s var(--ease-out); }
.mobile-menu[hidden] { display: none; }
.mobile-menu a:not(.btn) { display: flex; justify-content: space-between; align-items: center; padding: 14px 12px; border-radius: 12px; font-weight: 600; }
.mobile-menu a:not(.btn):hover { background: var(--accent-soft); }
.mobile-menu .lang { justify-self: start; }
@media (max-width: 899px) {
  .nav-links, .hide-sm { display: none; }
  .show-sm { display: inline-grid; }
}

/* ============ Tabs (shared) ============ */
.tab-list { display: flex; gap: 6px; padding: 5px; border-radius: 999px; background: var(--s2); border: 1px solid var(--line); overflow-x: auto; scrollbar-width: none; }
.tab-list [role="tab"] {
  flex: 1 0 auto; display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 42px; padding: 0 18px; border-radius: 999px;
  font-size: 0.92rem; font-weight: 600; color: var(--ink-3);
  transition: color var(--t), background-color var(--t), box-shadow var(--t);
}
.tab-list [role="tab"]:hover { color: var(--ink); }
.tab-list [aria-selected="true"] { color: var(--ink); background: var(--s1); box-shadow: 0 2px 10px -2px var(--shadow-c), 0 0 0 1px var(--line); }
.enhanced .tab-panel:not(.is-active) { display: none; }
.enhanced .tab-panel.is-active { animation: fade-up 0.6s var(--ease-out); }
.tab-panel:focus-visible { outline-offset: 6px; border-radius: var(--r-md); }

/* ============ Footer ============ */
.site-footer { padding: 64px 0 40px; border-top: 1px solid var(--line); background: color-mix(in srgb, var(--bg-tint) 70%, transparent); }
.footer-grid { display: grid; grid-template-columns: 1.2fr 2fr; gap: 40px; }
.tagline { margin-top: 14px; color: var(--ink-3); font-size: 0.85rem; letter-spacing: 0.18em; text-transform: uppercase; }
.footer-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.footer-h { font-size: 0.8rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 12px; }
.footer-cols li + li { margin-top: 6px; }
.footer-cols a { color: var(--ink-2); font-size: 0.92rem; transition: color var(--t); }
.footer-cols a:hover, .footer-cols a[aria-current] { color: var(--accent-ink); }
.footer-legal { display: grid; gap: 6px; margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--line); font-size: 0.8rem; color: var(--ink-3); }
@media (max-width: 760px) {
  .footer-grid, .footer-cols { grid-template-columns: 1fr; }
  .footer-cols { grid-template-columns: repeat(2, 1fr); }
}

/* ============ Illustrative app UI (theme-aware) ============ */
.app {
  overflow: hidden; border-radius: 20px; font-size: 13px; line-height: 1.5; text-align: left;
  /* opaque enough to skip backdrop-filter: a big blurred area over animated orbs costs a repaint every frame */
  background: color-mix(in srgb, var(--s1) 94%, transparent);
  -webkit-backdrop-filter: none; backdrop-filter: none;
}
.app-bar { display: flex; align-items: center; gap: 14px; height: 42px; padding: 0 14px; border-bottom: 1px solid var(--line); background: var(--s2); }
.app-brand { display: inline-flex; align-items: center; gap: 8px; font-weight: 800; font-size: 12.5px; letter-spacing: 0.04em; }
.app-brand-mark { border-radius: 50%; }
.app-actions { position: relative; display: inline-flex; align-items: center; gap: 12px; color: var(--ink-3); }
.app-actions .i { width: 16px; height: 16px; }
.app-dot { position: absolute; left: 11px; top: -1px; width: 7px; height: 7px; border-radius: 50%; background: var(--brand); box-shadow: 0 0 0 2px var(--s2); }
.app-actions .m-avatar { width: 24px; height: 24px; border-radius: 50%; font-size: 10px; }
.app-search > span { overflow: hidden; text-overflow: ellipsis; }
.app-search {
  display: flex; align-items: center; gap: 8px; margin-inline: auto; width: min(380px, 50%); padding: 5px 12px;
  border-radius: 8px; background: var(--s1); border: 1px solid var(--line); color: var(--ink-3); font-size: 12px;
  white-space: nowrap; overflow: hidden;
}
.app-search .i { width: 14px; height: 14px; }

.app-body { display: grid; grid-template-columns: 58px 212px minmax(0, 1fr) 248px; height: 440px; }
.app-rail { display: flex; flex-direction: column; align-items: center; gap: 10px; padding: 12px 0; background: var(--s2); border-right: 1px solid var(--line); }
.rail-space {
  display: grid; place-items: center; width: 36px; height: 36px; border-radius: 11px; font-weight: 700; font-size: 13px;
  color: light-dark(hsl(var(--h, 20) 70% 30%), hsl(var(--h, 20) 85% 72%)); background: hsl(var(--h, 20) 80% 55% / 0.16);
}
.rail-space.is-active { background: #0b0c0f; box-shadow: 0 0 0 2px var(--s2), 0 0 0 4px var(--brand); }
.rail-emblem { width: 30px; height: 30px; border-radius: 50%; }
.rail-space.is-add { color: var(--ink-3); background: transparent; border: 1px dashed var(--line-strong); }
.rail-space .i { width: 16px; height: 16px; }

.app-side { padding: 14px 10px; background: var(--s2); border-right: 1px solid var(--line); overflow: hidden; }
.m-space { font-weight: 700; font-size: 13.5px; padding: 0 8px 10px; }
.m-nav li { display: flex; align-items: center; gap: 9px; padding: 5px 8px; border-radius: 7px; color: var(--ink-2); font-size: 12.5px; }
.m-nav .i { width: 15px; height: 15px; color: var(--ink-3); }
.m-side-label { padding: 14px 8px 6px; font-size: 10.5px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-3); }
.m-tree ul { padding-left: 14px; }
.m-tree li { position: relative; }
.m-row { display: flex; align-items: center; gap: 6px; padding: 5px 8px; border-radius: 7px; color: var(--ink-2); font-size: 12.5px; white-space: nowrap; }
.m-row .i { width: 14px; height: 14px; color: var(--ink-3); }
.m-fold { transition: transform var(--t); }
.m-fold.is-open { transform: rotate(90deg); }
.m-hash { color: var(--ink-3); font-weight: 600; }
.m-row.is-active { color: var(--ink); font-weight: 600; background: color-mix(in srgb, var(--brand) 16%, transparent); box-shadow: inset 3px 0 0 var(--brand); }
.m-row.is-active .i { color: var(--accent-ink); }
.m-row.is-sub { font-size: 12px; }
.m-badge { margin-left: auto; min-width: 18px; padding: 0 6px; border-radius: 999px; background: var(--cta-a); color: #fff; font-size: 10.5px; font-weight: 700; text-align: center; line-height: 18px; }
.m-online { margin-left: auto; width: 7px; height: 7px; border-radius: 50%; background: #27a644; }
.m-avatar {
  display: inline-grid; place-items: center; flex: none; width: 30px; height: 30px; border-radius: 9px;
  background: hsl(var(--h) 75% 42%); color: #fff; font-size: 11px; font-weight: 700;
}
.m-tree .m-avatar { width: 18px; height: 18px; border-radius: 6px; font-size: 9px; }

.app-main { display: flex; flex-direction: column; min-width: 0; }
.app-main-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 11px 16px; border-bottom: 1px solid var(--line); }
.app-main-head p { display: flex; align-items: center; gap: 6px; white-space: nowrap; overflow: hidden; }
.app-main-head .i { width: 15px; height: 15px; color: var(--accent-ink); }
.m-crumb, .m-members { color: var(--ink-3); font-size: 12px; white-space: nowrap; }
.m-msgs { display: grid; gap: 16px; padding: 16px; align-content: start; }
.m-msg { display: grid; grid-template-columns: 30px minmax(0, 1fr); gap: 11px; }
.m-msg-meta { display: flex; align-items: baseline; gap: 8px; }
.m-msg-meta b { font-size: 13px; }
.m-msg-meta time { font-size: 11px; color: var(--ink-3); }
.m-msg-body > p:not(.m-msg-meta) { color: var(--ink-2); }
.m-mention { padding: 0 4px; border-radius: 5px; color: var(--accent-ink); background: var(--accent-soft); font-weight: 600; }
.m-attach { display: flex; align-items: center; gap: 10px; width: min(100%, 300px); margin-top: 8px; padding: 8px 12px 8px 8px; border-radius: 10px; border: 1px solid var(--line); background: var(--s2); }
.m-react { display: inline-block; margin-top: 6px; padding: 1px 9px; border-radius: 999px; border: 1px solid color-mix(in srgb, var(--brand) 35%, var(--line)); background: var(--accent-soft); font-size: 11.5px; }
.m-thread { display: inline-flex; align-items: center; gap: 6px; margin-top: 6px; color: var(--accent-ink); font-size: 12px; font-weight: 600; }
.m-thread .m-avatar { width: 18px; height: 18px; border-radius: 6px; font-size: 8px; }
.m-thread .m-avatar + .m-avatar { margin-left: -10px; box-shadow: 0 0 0 2px var(--s1); }
.m-composer {
  margin: auto 16px 16px; padding: 11px 14px; border-radius: 11px; border: 1px solid var(--line-strong);
  background: var(--s1); color: var(--ink-3); font-size: 12.5px;
}
.m-composer.is-typing { color: var(--ink); font-weight: 600; }
.caret { display: inline-block; width: 1.5px; height: 1.1em; margin-left: 1px; vertical-align: text-bottom; background: var(--brand); animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

.app-panel { padding: 14px; border-left: 1px solid var(--line); display: flex; flex-direction: column; gap: 10px; }
.m-panel-title { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 12.5px; }
.m-panel-title .i { width: 15px; height: 15px; color: var(--accent-ink); }
.m-files { display: grid; gap: 4px; }
.m-file { display: flex; align-items: center; gap: 10px; padding: 7px; border-radius: 9px; }
.m-file:first-child { background: var(--s2); }
.m-file-ico { display: grid; place-items: center; flex: none; width: 32px; height: 32px; border-radius: 9px; color: #e5484d; background: rgba(229, 72, 77, 0.12); }
.m-file-ico.is-video { color: #8e6bf0; background: rgba(142, 107, 240, 0.14); }
.m-file-ico.is-sheet { color: #27a644; background: rgba(39, 166, 68, 0.13); }
.m-file-ico .i { width: 16px; height: 16px; }
.m-file-text { display: grid; min-width: 0; }
.m-file-text b { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.m-file-text small { font-size: 11px; color: var(--ink-3); }
.m-btn {
  display: inline-flex; align-items: center; justify-content: center; align-self: flex-start; padding: 6px 14px; border-radius: 999px;
  font-size: 12px; font-weight: 700; color: #fff; background: linear-gradient(135deg, var(--cta-a), var(--cta-b)); white-space: nowrap;
}
.m-btn.is-ghost { color: var(--accent-ink); background: var(--accent-soft); }

/* floating cards */
.m-task, .m-notice { border-radius: 16px; font-size: 13px; line-height: 1.45; text-align: left; }
.m-task { width: 248px; padding: 14px 16px; display: grid; gap: 6px; }
.m-task > p:first-child { display: flex; justify-content: space-between; align-items: center; }
.m-key { font-size: 11px; font-weight: 700; color: var(--ink-3); letter-spacing: 0.04em; }
.m-prio { font-size: 10.5px; font-weight: 700; color: var(--accent-ink); background: var(--accent-soft); padding: 1px 8px; border-radius: 999px; }
.m-task b { font-size: 14px; }
.m-task-foot { display: flex; align-items: center; gap: 8px; color: var(--ink-3); font-size: 12px; }
.m-task-foot .m-avatar { width: 22px; height: 22px; border-radius: 7px; font-size: 9px; }
.m-due { margin-left: auto; display: inline-flex; align-items: center; gap: 4px; color: var(--accent-ink); font-weight: 600; }
.m-due .i { width: 13px; height: 13px; }
.m-notice { display: flex; align-items: center; gap: 12px; width: 300px; padding: 12px 16px 12px 12px; }
.m-notice-ico { display: grid; place-items: center; flex: none; width: 36px; height: 36px; border-radius: 11px; color: #fff; background: linear-gradient(135deg, var(--brand), var(--brand-3)); }
.m-notice-ico .i { width: 18px; height: 18px; }
.m-notice span:last-child { display: grid; }
.m-notice small { color: var(--ink-3); font-size: 12px; }

/* ============ Workflow stage visuals ============ */
.w-chat, .w-side, .w-files-list, .w-col, .w-timeline, .w-preview {
  border: 1px solid var(--line); border-radius: 14px; background: var(--s1); font-size: 13px; line-height: 1.5;
}
.w-chat { overflow: hidden; }
.w-side { position: relative; padding: 6px 10px 14px; background: var(--s2); max-width: 380px; margin-inline: auto; }
.is-menu > .m-row { background: var(--s3); }
.m-ctx {
  position: absolute; z-index: 2; left: 46%; top: 34px; width: max-content; padding: 6px; border-radius: 12px;
  background: var(--glass-strong); border: 1px solid var(--line-strong); box-shadow: 0 16px 40px -10px var(--shadow-c);
  -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px);
  animation: pop-menu 0.5s var(--ease-out) 0.25s both;
}
.m-ctx li { display: flex; align-items: center; gap: 8px; padding: 7px 12px 7px 9px; border-radius: 8px; font-size: 12.5px; color: var(--ink-2); }
.m-ctx .i { width: 14px; height: 14px; }
.m-ctx li.is-hover { color: var(--ink); background: var(--accent-soft); }
.m-ctx li.is-hover .i { color: var(--accent-ink); }
@keyframes pop-menu { from { opacity: 0; transform: translateY(-6px) scale(0.96); } }

.w-files { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 14px; }
.w-files-list { padding: 14px; display: flex; flex-direction: column; gap: 10px; }
.w-preview { position: relative; display: grid; place-items: center; align-content: center; gap: 12px; padding: 22px; background: var(--s2); }
.w-page {
  grid-area: 1 / 1; width: min(62%, 170px); aspect-ratio: 3 / 4; border-radius: 6px; background-color: #fff;
  background-image: linear-gradient(#e7e9ee 0 0), repeating-linear-gradient(#fff 0 10px, #eceef2 10px 12px);
  background-size: 50% 10px, 78% 70%; background-position: 14% 12%, 50% 70%; background-repeat: no-repeat;
  box-shadow: 0 10px 30px -8px var(--shadow-c), 0 0 0 1px rgba(0, 0, 0, 0.06);
}
.w-page:first-child { transform: rotate(-5deg) translate(-14px, 6px); opacity: 0.75; }
.w-preview small { font-size: 11.5px; color: var(--ink-3); }

.w-board { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.w-col { display: grid; gap: 8px; align-content: start; padding: 10px; background: var(--s2); }
.w-col-head { display: flex; align-items: center; gap: 7px; font-size: 12px; font-weight: 700; color: var(--ink-2); }
.w-dot { width: 8px; height: 8px; border-radius: 50%; background: hsl(var(--h) 80% 52%); }
.w-card { padding: 10px 12px; border-radius: 10px; border: 1px solid var(--line); background: var(--s1); font-size: 12.5px; }
.w-col .m-task { width: auto; padding: 10px 12px; border: 1px solid color-mix(in srgb, var(--brand) 40%, var(--line)); background: var(--s1); box-shadow: 0 8px 20px -10px rgba(255, 90, 31, 0.5); }
.w-col .m-task b { font-size: 12.5px; }
.w-timeline { grid-column: 1 / -1; padding: 12px 14px 16px; }
.w-scale { display: flex; justify-content: space-between; margin: 6px 0 4px; padding-bottom: 6px; border-bottom: 1px solid var(--line); font-size: 11px; color: var(--ink-3); }
.w-bar {
  display: block; margin: 8px 0 0 var(--s); width: var(--w); padding: 0 9px; border-radius: 6px; line-height: 24px; font-size: 11.5px; font-weight: 600;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; color: var(--ink);
  background: hsl(var(--h) 85% 55% / 0.18); box-shadow: inset 3px 0 0 hsl(var(--h) 80% 50%);
  transform-origin: left; animation: grow 0.9s var(--ease-out) both;
}
.w-bar:nth-of-type(2) { animation-delay: 0.1s; }
.w-bar:nth-of-type(3) { animation-delay: 0.2s; }
@keyframes grow { from { transform: scaleX(0.05); opacity: 0; } }

/* ============ Showcase visuals ============ */
.v-stack { position: relative; display: grid; font-size: 13px; line-height: 1.5; }
.v-card { padding: 16px; border-radius: 20px; }
.v-stack > .v-card:first-child { background: color-mix(in srgb, var(--s1) 88%, transparent); }
.v-stack > :nth-child(2) { position: relative; z-index: 2; width: min(80%, 360px); margin: -56px 0 0 auto; }
.v-stack .m-msgs { padding: 4px 4px 16px; }
.v-stack .m-composer { margin: 0; }
.v-picker { padding: 6px; border-radius: 16px; display: grid; gap: 2px; }
.v-picker li { display: flex; flex-wrap: wrap; align-items: center; gap: 2px 10px; padding: 8px 10px; border-radius: 10px; }
.v-picker li.is-hover { background: var(--accent-soft); }
.v-picker small { flex-basis: 100%; color: var(--ink-3); font-size: 11.5px; }
.v-picker em { margin-left: auto; font-style: normal; font-size: 11px; color: var(--ink-3); }
.v-picker .m-avatar { width: 24px; height: 24px; border-radius: 8px; font-size: 9px; }
.v-bin { display: grid; gap: 10px; }
.v-bin-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 8px 10px; border-radius: 10px; background: var(--s2); }
.v-bin-row > span:first-child { display: grid; }
.v-bin-row small { font-size: 11px; color: var(--ink-3); }
.v-share { display: flex; align-items: center; gap: 10px; }
.v-share b { flex: 1; min-width: 0; font-size: 12.5px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.v-spaces { display: flex; gap: 14px; align-items: flex-start; }
.v-spaces .app-rail { border: 0; border-radius: 14px; padding: 10px; }
.v-space-list { flex: 1; display: grid; gap: 4px; padding-top: 6px; }
.v-space-list li { display: flex; align-items: center; padding: 9px 12px; border-radius: 10px; color: var(--ink-2); }
.v-space-list li.is-active { color: var(--ink); font-weight: 600; background: var(--accent-soft); }
.v-search .app-search { width: auto; margin: 0 0 4px; color: var(--ink); }
.v-search-h { margin: 10px 0 4px; font-size: 10.5px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-3); }
.v-search-hit { display: flex; align-items: center; gap: 8px; padding: 6px 8px; border-radius: 8px; background: var(--s2); color: var(--ink-2); font-size: 12px; white-space: nowrap; overflow: hidden; }
.v-search-hit .i { width: 14px; height: 14px; color: var(--accent-ink); }

/* ============ Phone ============ */
.phone {
  position: relative; width: min(300px, 78vw); aspect-ratio: 9 / 19.2; margin-inline: auto;
  padding: 10px; border-radius: 48px; background: linear-gradient(160deg, rgba(255, 255, 255, 0.13), transparent 38%, rgba(255, 255, 255, 0.05)) light-dark(#16171b, #24262b);
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.14), 0 0 0 1.5px light-dark(#2e3036, #4a4d55), 0 40px 80px -24px var(--shadow-c);
  font-size: 13px; line-height: 1.45; text-align: left;
}
.phone-screen { position: relative; height: 100%; overflow: hidden; border-radius: 38px; background: var(--s1); }
.phone-status { display: flex; justify-content: space-between; align-items: center; padding: 14px 24px 6px; font-size: 12.5px; font-weight: 700; }
.phone-island { position: absolute; left: 50%; top: 10px; width: 92px; height: 26px; border-radius: 20px; background: #000; transform: translateX(-50%); }
.phone-batt { width: 24px; height: 11px; border-radius: 3px; border: 1.5px solid currentColor; opacity: 0.8; }
.phone-push {
  position: absolute; z-index: 2; left: 10px; right: 10px; top: 44px; display: flex; align-items: center; gap: 10px; padding: 10px 12px;
  border-radius: 20px; background: var(--glass-strong); border: 1px solid var(--line);
  -webkit-backdrop-filter: blur(20px); backdrop-filter: blur(20px); box-shadow: 0 14px 30px -12px var(--shadow-c);
}
.push-emblem { width: 30px; height: 30px; border-radius: 8px; flex: none; }
.phone-push span { display: grid; min-width: 0; }
.phone-push small { font-size: 10.5px; color: var(--ink-3); font-weight: 600; }
.phone-push b { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.phone-title { padding: 70px 20px 8px; font-size: 26px; font-weight: 800; letter-spacing: -0.02em; }
.phone-list li { display: flex; align-items: center; gap: 12px; padding: 11px 20px; border-bottom: 1px solid var(--line); }
.phone-ico { display: grid; place-items: center; flex: none; width: 38px; height: 38px; border-radius: 12px; font-weight: 800; color: light-dark(hsl(var(--h) 70% 30%), hsl(var(--h) 85% 72%)); background: hsl(var(--h) 80% 55% / 0.15); }
.phone-ico .i { width: 18px; height: 18px; }
.phone-text { display: grid; min-width: 0; flex: 1; }
.phone-text b { font-size: 14px; }
.phone-text small { color: var(--ink-3); font-size: 12px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.phone-label { padding: 16px 20px 4px; font-size: 11px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-3); }
.phone-ico.is-person { border-radius: 50%; color: #fff; background: hsl(var(--h) 75% 42%); font-size: 14px; }
.phone-tabbar { position: absolute; left: 0; right: 0; bottom: 0; display: flex; justify-content: space-around; padding: 12px 0 22px; border-top: 1px solid var(--line); background: var(--s2); color: var(--ink-3); }
.phone-tabbar .i { width: 22px; height: 22px; }
.phone-tabbar .i:first-child { color: var(--accent-ink); }

/* ============ Slack Migration & Sync panel ============ */
.m-src { padding: 0 7px; border-radius: 999px; font-size: 10.5px; font-weight: 600; color: var(--ink-2); background: var(--s3); align-self: center; }
.mig { display: grid; gap: 14px; padding: 20px; border-radius: 22px; font-size: 13px; line-height: 1.5; text-align: left; }
.mig-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px; }
.mig-flow { display: inline-flex; align-items: center; gap: 8px; color: var(--ink-3); }
.mig-flow .i { width: 14px; height: 14px; }
.mig-chip { display: inline-flex; align-items: center; gap: 6px; padding: 3px 10px; border-radius: 999px; border: 1px solid var(--line); background: var(--s2); font-size: 11.5px; font-weight: 700; color: var(--ink-2); }
.mig-emblem { border-radius: 50%; }
.mig-rows { display: grid; gap: 8px; }
.mig-rows li { display: grid; grid-template-columns: minmax(0, 1fr) auto 16px; align-items: center; gap: 6px 10px; padding: 10px 12px; border-radius: 12px; background: var(--s2); }
.mig-rows li > span:first-child { color: var(--ink-2); }
.mig-rows b { font-variant-numeric: tabular-nums; }
.mig-ok { width: 16px; height: 16px; color: light-dark(#1a7f37, #3fb950); }
.mig-bar { grid-column: 1 / -1; height: 4px; border-radius: 4px; background: var(--s3); overflow: hidden; }
.mig-bar i { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--brand), var(--brand-3)); transform-origin: left; }
.enhanced .slack-visual .mig-bar i { transform: scaleX(0); transition: transform 1.1s var(--ease-out) calc(0.4s + var(--i) * 0.15s); }
.enhanced .slack-visual .mig-ok { opacity: 0; transition: opacity 0.4s ease calc(1.1s + var(--i) * 0.15s); }
.enhanced .slack-visual.is-in .mig-bar i { transform: none; }
.enhanced .slack-visual.is-in .mig-ok { opacity: 1; }
.mig-live { display: flex; align-items: center; gap: 10px; padding: 11px 12px; border-radius: 12px; border: 1px solid color-mix(in srgb, var(--brand) 35%, var(--line)); background: var(--accent-soft); }
.mig-live-dot { width: 8px; height: 8px; border-radius: 50%; background: #27a644; box-shadow: 0 0 0 3px rgba(39, 166, 68, 0.2); }
.mig-live small { color: var(--ink-2); font-size: 12px; }
.mig-switch { position: relative; margin-left: auto; width: 34px; height: 20px; border-radius: 999px; background: var(--cta-a); }
.mig-switch i { position: absolute; top: 2px; right: 2px; width: 16px; height: 16px; border-radius: 50%; background: #fff; }
.mig-msg { padding-top: 14px; border-top: 1px solid var(--line); }

/* ============ Sections ============ */
.section, .hero { overflow-x: clip; }
.section { position: relative; padding-block: clamp(72px, 10vw, 136px); }
.section-tint { background: linear-gradient(180deg, transparent, color-mix(in srgb, var(--bg-tint) 75%, transparent) 18%, color-mix(in srgb, var(--bg-tint) 75%, transparent) 82%, transparent); }

/* ============ Hero ============ */
.hero { position: relative; padding-top: clamp(28px, 4.5vw, 56px); padding-bottom: clamp(56px, 8vw, 104px); text-align: center; }
.hero-copy { display: grid; justify-items: center; gap: 18px; }
.hero-mark { position: relative; display: grid; place-items: center; width: 64px; height: 64px; }
.hero-mark::before {
  content: ""; position: absolute; inset: -14px; border-radius: 50%;
  background: radial-gradient(closest-side, rgba(255, 90, 31, 0.3), transparent);
  animation: fade-up 1.2s var(--ease-out) 0.3s both;
}
.hero-emblem { position: relative; border-radius: 50%; animation: pop 1s var(--ease-out) 0.1s both; box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.08), 0 8px 22px -8px rgba(255, 90, 31, 0.55); }
.eyebrow { font-size: 0.82rem; font-weight: 700; letter-spacing: 0.16em; color: var(--accent-ink); }
:lang(ja) .eyebrow { letter-spacing: 0.08em; font-size: 0.95rem; word-break: keep-all; text-wrap: balance; }
.hero-title { font-size: clamp(2.5rem, 1.3rem + 4.4vw, 4.6rem); line-height: 1.05; letter-spacing: -0.035em; font-weight: 800; }
:lang(ja) .hero-title { font-size: clamp(2.05rem, 1.1rem + 4.1vw, 4.35rem); line-height: 1.24; letter-spacing: 0.01em; }
.hero-title .line { display: block; overflow: hidden; padding-bottom: 0.06em; }
.hero-title .line + .line .h-rise {
  background: linear-gradient(100deg, var(--ink) 10%, var(--accent-ink) 55%, var(--brand-2) 95%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-lead { max-width: 640px; }
.hero-sub { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 10px 14px; color: var(--ink-3); font-size: 0.88rem; }
.hero-pill {
  display: inline-flex; align-items: center; gap: 10px; max-width: 100%; padding: 5px 14px 5px 5px; border-radius: 999px;
  font-size: 0.85rem; font-weight: 600; line-height: 1.35; text-align: left; color: var(--ink);
  background: var(--glass-strong); border: 1px solid var(--line-strong);
  box-shadow: 0 1px 0 var(--glass-hi) inset, 0 8px 22px -12px var(--shadow-c); transition: border-color var(--t);
}
:lang(ja) .hero-pill { word-break: keep-all; }
.hero-pill:hover { border-color: color-mix(in srgb, var(--brand) 50%, var(--line-strong)); }
.hero-pill-tag { flex: none; padding: 3px 10px; border-radius: 999px; font-size: 0.75rem; font-weight: 700; color: #fff; background: linear-gradient(135deg, var(--cta-a), var(--cta-b)); }
.hero-pill .i { width: 14px; height: 14px; color: var(--accent-ink); transition: transform var(--t) var(--ease-out); }
.hero-pill:hover .i { transform: translateX(3px); }
.store-link { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; color: var(--ink); border-bottom: 1px solid var(--line-strong); padding-bottom: 1px; transition: border-color var(--t), color var(--t); }
.store-link:hover { color: var(--accent-ink); border-color: currentColor; }
.dot-sep { width: 4px; height: 4px; border-radius: 50%; background: var(--line-strong); }

.hero-stage { position: relative; margin-top: clamp(36px, 4.5vw, 60px); perspective: 1800px; }
.hero-glow {
  position: absolute; left: 50%; top: 8%; width: 90%; height: 80%; transform: translateX(-50%);
  background: radial-gradient(50% 50% at 50% 50%, var(--hero-glow), transparent 70%);
  animation: fade-in 1.8s ease-out 0.7s both;
}
/* frosted bezel around the app; static backdrop, so the blur is computed once */
.hero-app {
  position: relative; max-width: 1120px; margin-inline: auto; padding: 10px; border-radius: 30px;
  background: var(--glass); border: 1px solid var(--glass-border);
  -webkit-backdrop-filter: blur(20px) saturate(150%); backdrop-filter: blur(20px) saturate(150%);
  box-shadow: 0 1px 0 var(--glass-hi) inset, 0 0 0 1px var(--glass-edge), 0 40px 90px -30px var(--shadow-c), 0 18px 36px -18px var(--shadow-c2);
  transform-origin: 50% 0; animation: app-in 1.3s var(--ease-out) 0.5s both;
}
.hero-app .app { border: 1px solid var(--line); box-shadow: 0 1px 2px var(--shadow-c2); }
@keyframes app-in { from { opacity: 0; transform: translate3d(0, 48px, 0) rotateX(9deg) scale(0.96); } }
@keyframes fade-in { from { opacity: 0; } }
.hero-app .m-msg { animation: fade-up 0.7s var(--ease-out) calc(1.1s + var(--i) * 0.16s) both; }
.hero-app .app-panel { animation: panel-in 0.9s var(--ease-out) 1.55s both; }
.hero-app .m-file { animation: fade-up 0.6s var(--ease-out) calc(1.7s + var(--i) * 0.08s) both; }
.hero-app .m-row.is-active { animation: glow-row 1.2s var(--ease-out) 0.95s both; }
@keyframes panel-in { from { opacity: 0; transform: translate3d(24px, 0, 0); } }
@keyframes glow-row { from { background: transparent; box-shadow: none; } }

.float { position: absolute; z-index: 2; animation: float-in 1.1s var(--ease-out) var(--d) both; }
.float-task { --d: 1.95s; left: max(-8px, calc(50% - 640px)); bottom: -5%; }
.float-notice { --d: 2.15s; right: max(-8px, calc(50% - 650px)); top: -5%; }
.float .glass-strong { background: var(--glass-solid); }
@keyframes float-in { from { opacity: 0; transform: translate3d(0, 20px, 0) scale(0.96); } }
.floaty { animation: bob 9s ease-in-out calc(var(--d) + 1s) infinite alternate; }
.float-notice .floaty { animation-duration: 11s; }
@keyframes bob { to { transform: translate3d(0, -7px, 0); } }
.is-paused .floaty, .is-paused .phone { animation-play-state: paused; }

/* ============ Showcase ============ */
.showcase { display: grid; gap: clamp(72px, 10vw, 128px); }
.sc-row { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: clamp(32px, 6vw, 88px); align-items: center; }
.sc-row.is-flip .sc-copy { order: 2; }
.sc-copy { display: grid; gap: 16px; align-content: start; }
.sc-copy h3 { font-size: clamp(1.5rem, 1.1rem + 1.4vw, 2.2rem); }
.sc-copy > p { color: var(--ink-2); }
.sc-visual { position: relative; }
.sc-visual::before {
  content: ""; position: absolute; inset: 8% 4%; z-index: -1; border-radius: 40px;
  background: radial-gradient(60% 60% at 50% 50%, rgba(255, 90, 31, 0.2), transparent 70%); filter: blur(20px);
}

/* ============ Workflow ============ */
.workflow { padding: clamp(16px, 3vw, 28px); border-radius: var(--r-xl); display: grid; grid-template-columns: minmax(0, 1fr); gap: 22px; }
.tabs { display: grid; grid-template-columns: minmax(0, 1fr); gap: 22px; }
.workflow .tab-list { max-width: 720px; margin-inline: auto; width: 100%; }
.wf-num { font-size: 0.72rem; font-weight: 700; color: var(--accent-ink); font-variant-numeric: tabular-nums; }
.workflow .tab-panel { display: grid; grid-template-columns: minmax(0, 0.7fr) minmax(0, 1.3fr); gap: clamp(20px, 4vw, 48px); align-items: center; padding: clamp(8px, 2vw, 20px); min-height: 380px; }
.wf-copy { display: grid; gap: 12px; }
.wf-copy h3 { font-size: clamp(1.3rem, 1rem + 1vw, 1.75rem); }
.wf-copy p { color: var(--ink-2); }
.workflow .demo-note { text-align: center; }

/* ============ Why ============ */
.why-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.why-card { padding: 28px; display: grid; gap: 12px; align-content: start; transition: transform 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out), border-color 0.4s; }
.why-card.is-in:hover, .why-card:not([data-reveal]):hover { transform: translate3d(0, -4px, 0); border-color: color-mix(in srgb, var(--brand) 35%, var(--glass-border)); }
.why-ico {
  display: grid; place-items: center; width: 46px; height: 46px; border-radius: 14px; color: #fff;
  background: linear-gradient(135deg, var(--brand), var(--brand-3)); box-shadow: 0 10px 22px -10px rgba(255, 90, 31, 0.8);
}
.why-ico .i { width: 22px; height: 22px; }
.why-card h3 { font-size: 1.12rem; }
.why-card p { color: var(--ink-2); font-size: 0.95rem; }

/* ============ Moving from Slack ============ */
.slack-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(32px, 6vw, 88px); align-items: center; }
.slack-copy { display: grid; gap: 26px; }
.slack-copy .section-head { margin: 0; text-align: left; justify-items: start; }
.slack-steps { display: grid; gap: 18px; margin: 0; padding: 0; list-style: none; }
.slack-steps li { display: grid; grid-template-columns: 36px minmax(0, 1fr); gap: 14px; }
.slack-num { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 12px; font-weight: 700; color: #fff; background: linear-gradient(135deg, var(--cta-a), var(--cta-b)); box-shadow: 0 8px 18px -10px rgba(255, 90, 31, 0.8); }
.slack-steps h3 { font-size: 1.08rem; margin-bottom: 4px; }
.slack-steps p { color: var(--ink-2); font-size: 0.95rem; }
#slack .fine-print { margin-top: clamp(32px, 4vw, 48px); }

/* ============ Comparison ============ */
.compare-table { overflow: hidden; border-radius: var(--r-xl); }
.compare-table table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
.compare-table th, .compare-table td { padding: 18px 20px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); }
.compare-table thead th { font-size: 0.95rem; padding-block: 20px; }
.compare-table thead th:first-child { color: var(--ink-3); font-weight: 600; font-size: 0.82rem; letter-spacing: 0.06em; text-transform: uppercase; }
.compare-table thead .emblem { display: inline-block; vertical-align: -6px; margin-right: 8px; border-radius: 50%; }
.compare-table tbody th { width: 17%; font-weight: 700; }
.compare-table td { width: 27.6%; color: var(--ink-2); }
.compare-table tbody tr:last-child > * { border-bottom: 0; }
.compare-table .is-us { background: color-mix(in srgb, var(--brand) 7%, transparent); color: var(--ink); }
.compare-table thead .is-us { box-shadow: inset 0 3px 0 var(--brand); }
.compare-table tbody tr { transition: background-color var(--t); }
.compare-table tbody tr:hover { background: var(--accent-soft); }
.enhanced .compare-table tbody tr { opacity: 0; }
.enhanced .compare-table.is-in tbody tr { animation: fade-up 0.7s var(--ease-out) calc(0.15s + var(--r) * 0.07s) both; opacity: 1; }
.compare-cards { display: none; gap: 14px; }
.compare-card { padding: 20px; }
.compare-card h3 { font-size: 1.05rem; margin-bottom: 12px; }
.compare-card dl { display: grid; gap: 10px; }
.compare-card dl > div { padding: 10px 12px; border-radius: 12px; background: var(--s2); }
.compare-card dl > .is-us { background: color-mix(in srgb, var(--brand) 9%, var(--s1)); box-shadow: inset 3px 0 0 var(--brand); }
.compare-card dt { font-size: 0.78rem; font-weight: 700; color: var(--ink-3); }
.compare-card .is-us dt { color: var(--accent-ink); }
.compare-card dd { font-size: 0.92rem; color: var(--ink-2); }
.fine-print { max-width: 780px; margin: 22px auto 0; text-align: center; }

/* ============ Languages ============ */
.lang-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(32px, 6vw, 80px); align-items: center; }
.lang-grid .section-head { margin: 0; text-align: left; justify-items: start; }
.lang-demo { padding: 22px; border-radius: var(--r-xl); display: grid; gap: 16px; }
.lang-demo-label { font-size: 0.8rem; font-weight: 700; color: var(--ink-3); }
.lang-demo .tab-list { border-radius: 16px; flex-wrap: wrap; }
.lang-demo .tab-list [role="tab"] { min-height: 38px; padding: 0 14px; font-size: 0.88rem; }
.lang-sample { padding: 20px; border-radius: 16px; background: var(--s2); border: 1px solid var(--line); display: grid; gap: 8px; font-size: 15px; }
.lang-sample .m-nav li { font-size: 14.5px; padding: 6px 8px; }
.lang-sample .m-nav .i { width: 17px; height: 17px; }
.lang-sample .m-nav { margin-bottom: 8px; }
.lang-h { font-size: 1.5rem; font-weight: 700; line-height: 1.3; }
.lang-s { color: var(--ink-2); }

/* ============ iOS ============ */
.ios-grid { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: clamp(32px, 6vw, 88px); align-items: center; }
.ios-copy { display: grid; gap: 26px; }
.ios-copy .section-head { margin: 0; text-align: left; justify-items: start; }
.ios-visual { position: relative; }
.ios-visual::before {
  content: ""; position: absolute; inset: 10% 0; z-index: -1;
  background: radial-gradient(45% 45% at 50% 50%, rgba(255, 90, 31, 0.3), transparent 70%); filter: blur(24px);
}
.enhanced .ios-visual[data-reveal] { transform: translate3d(0, 70px, 0) rotate(-5deg); transition-duration: 1.2s, 1.4s; }
.enhanced .ios-visual[data-reveal].is-in { transform: none; }
.ios-visual .phone { animation: bob 8s ease-in-out 1.5s infinite alternate; }
.enhanced .ios-visual .phone-push { opacity: 0; transform: translate3d(0, -130%, 0); transition: opacity 0.6s, transform 0.9s var(--ease-out); transition-delay: 0.9s; }
.enhanced .ios-visual.is-in .phone-push { opacity: 1; transform: none; }

/* ============ FAQ ============ */
.faq-wrap { max-width: 860px; }
.faq { display: grid; gap: 12px; }
.faq-item { border-radius: var(--r-lg); interpolate-size: allow-keywords; }
.faq-item summary { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 20px 22px; cursor: pointer; list-style: none; border-radius: inherit; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary h3 { font-size: 1.02rem; font-weight: 600; }
.faq-ico { display: grid; place-items: center; flex: none; width: 32px; height: 32px; border-radius: 50%; background: var(--accent-soft); color: var(--accent-ink); transition: transform 0.45s var(--ease-out); }
.faq-ico .i { width: 16px; height: 16px; }
.faq-item[open] .faq-ico { transform: rotate(45deg); }
.faq-item summary:hover h3 { color: var(--accent-ink); }
.faq-a { padding: 0 22px 22px; color: var(--ink-2); }
/* height animation where supported (::details-content); elsewhere it simply opens */
.faq-item::details-content { block-size: 0; overflow: clip; transition: block-size 0.45s var(--ease-out), content-visibility 0.45s allow-discrete; }
.faq-item[open]::details-content { block-size: auto; }

/* ============ Final CTA ============ */
.cta-panel { overflow: hidden; display: grid; justify-items: center; gap: 18px; padding: clamp(48px, 8vw, 96px) clamp(20px, 5vw, 64px); border-radius: 32px; text-align: center; }
.cta-panel h2 { font-size: clamp(1.8rem, 1.1rem + 2.8vw, 3.2rem); max-width: 820px; }
:lang(ja) .cta-panel h2 { font-size: clamp(1.55rem, 1rem + 2.3vw, 2.7rem); }
.cta-panel .lead { max-width: 600px; }
.cta-panel .cta-row { margin-top: 10px; }
.cta-emblem { border-radius: 50%; box-shadow: 0 12px 34px -6px rgba(255, 90, 31, 0.65); }
.cta-glow {
  position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(40% 60% at 15% 0%, var(--cta-glow-1), transparent 70%),
    radial-gradient(40% 60% at 85% 100%, var(--cta-glow-2), transparent 70%);
}
.enhanced .cta-panel[data-reveal] { transform: translate3d(0, 40px, 0) scale(0.97); }
.enhanced .cta-panel[data-reveal].is-in { transform: none; }

/* ============ Responsive ============ */
@media (max-width: 1080px) {
  .app-body { grid-template-columns: 54px 200px minmax(0, 1fr); }
  .app-panel { display: none; }
  .float-task { left: 0; bottom: -4%; }
  .float-notice { right: 0; top: -6%; }
}
@media (max-width: 900px) {
  .sc-row, .lang-grid, .ios-grid, .slack-grid { grid-template-columns: 1fr; }
  .sc-row.is-flip .sc-copy { order: 0; }
  .why-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .workflow .tab-panel { grid-template-columns: 1fr; min-height: 0; }
  .compare-table { display: none; }
  .compare-cards { display: grid; }
  .ios-copy .section-head, .lang-grid .section-head, .slack-copy .section-head { text-align: center; justify-items: center; margin-inline: auto; }
  .ios-copy .cta-row { justify-content: center; }
  .ios-copy .checks { justify-self: center; }
}
@media (max-width: 760px) {
  .app-body { grid-template-columns: minmax(0, 1fr); height: auto; }
  .app-rail, .app-side { display: none; }
  .app-brand, .m-crumb { display: none; }
  .app-search { width: auto; flex: 1; margin: 0; }
  .float-task { display: none; }
  .hero-app { padding: 6px; border-radius: 22px; }
  .hero-app .app { border-radius: 16px; }
  .float-notice { top: auto; bottom: -30px; right: 8px; left: 8px; display: flex; justify-content: center; }
  .m-notice { width: min(300px, 100%); }
  .hero-stage { margin-bottom: 24px; }
  .w-files { grid-template-columns: 1fr; }
  .w-preview { display: none; }
  .m-ctx { left: 22%; }
  .why-grid { grid-template-columns: 1fr; }
  .why-card { padding: 22px; }
  .tab-list [role="tab"] { padding: 0 12px; }
  .workflow .tab-list { display: grid; grid-template-columns: 1fr 1fr; border-radius: 18px; }
  .v-stack > :nth-child(2) { width: 88%; margin-top: -40px; }
  .btn-lg { min-height: 50px; padding: 0 22px; }
  .dot-sep { display: none; }
  .hero-sub { flex-direction: column; gap: 6px; }
}
@media (max-width: 480px) {
  .w-board { grid-template-columns: 1fr 1fr; }
  .w-board .w-col:nth-child(3) { display: none; }
  .hero .cta-row .btn { flex: 1 1 100%; }
}