/* IR77 / Iridium — a shared home for Iris and Pupil. */
:root {
  color-scheme: dark;
  --bg-void: #08080e;
  --bg-obsidian: #111118;
  --bg-slate: #0e0e16;
  --fg-snow: #f0f0f8;
  --fg-silver: #d0d0e0;
  --fg-muted: #9292aa;
  --fg-secondary: #a5a5bb;
  --accent-cyan: #00f0ff;
  --accent-violet: #8b5cf6;
  --accent-violet-text: #b79aff;
  --accent-magenta: #d946ef;
  --border: #ffffff12;
  --font-body: 'Geist', ui-sans-serif, system-ui, sans-serif;
  --font-mono: 'Geist Mono', ui-monospace, monospace;
  --iris: linear-gradient(100deg, #63dfff 0%, #8690ff 24%, #ae82ff 48%, #ed88d9 73%, #f8b181 100%);
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 6rem; }
body { margin: 0; background: var(--bg-void); color: var(--fg-silver); font-family: var(--font-body); font-size: 1rem; line-height: 1.6; -webkit-font-smoothing: antialiased; }
body::before { content: ''; position: absolute; inset: 0 0 auto; height: 2px; background: linear-gradient(90deg, #00f0ff, #4d7cff, #8b5cf6, #d946ef, #f43f5e, #f59e0b); opacity: .8; z-index: 20; }
::selection { background: #8b5cf650; color: white; }
a { color: inherit; text-decoration: none; }
a, button { -webkit-tap-highlight-color: transparent; }
a:focus-visible { outline: 2px solid var(--accent-violet-text); outline-offset: 6px; border-radius: 4px; }
h1, h2, h3, h4, p { margin: 0; }
h1, h2, h3, h4 { color: var(--fg-snow); }
svg { fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
img { display: block; max-width: 100%; }
.container { width: min(100% - 4rem, 1140px); margin-inline: auto; }
.icon { width: 20px; height: 20px; flex: 0 0 auto; }
.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 100; padding: .7rem 1rem; background: var(--fg-snow); color: var(--bg-void); border-radius: .5rem; }
.skip-link:focus { top: 1rem; }
.topbar { position: sticky; top: 0; z-index: 10; background: #08080ecc; border-bottom: 1px solid var(--border); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); }
.topbar-inner { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.brand { display: inline-flex; align-items: center; gap: .7rem; color: var(--fg-snow); flex-shrink: 0; }
.brand > span { font-size: 1.25rem; font-weight: 650; letter-spacing: -.045em; }
.brand sup { position: relative; top: -.1em; margin-left: .12rem; font-size: .65em; font-weight: 600; color: var(--accent-violet-text); letter-spacing: -.015em; }
.navigation { display: flex; align-items: center; gap: 2rem; margin-left: auto; margin-right: 2.25rem; }
.navigation a, .nav-signin { font-size: .875rem; font-weight: 500; }
.navigation a { color: var(--fg-secondary); padding-block: .8rem; transition: color .2s; }
.navigation a:hover { color: var(--fg-snow); }
.nav-signin { display: inline-flex; gap: .65rem; align-items: center; min-height: 42px; padding: .5rem 1rem; border: 1px solid #ffffff20; border-radius: 9px; transition: background .2s, border-color .2s; }
.nav-signin:hover { background: #ffffff07; border-color: #ffffff40; }
.nav-signin .icon { width: 16px; height: 16px; }
.hero { min-height: 650px; display: grid; grid-template-columns: 1.13fr 1fr; align-items: center; gap: 1.5rem; padding-block: 6rem 5.6rem; }
.hero-copy { position: relative; z-index: 2; }
.eyebrow { font-family: var(--font-mono); font-size: .75rem; line-height: 1.7; letter-spacing: .12em; text-transform: uppercase; color: var(--fg-secondary); font-weight: 500; }
.hero .eyebrow { display: flex; align-items: center; gap: .65rem; margin-bottom: 1.55rem; }
.brand-spark { color: var(--accent-violet-text); font-size: 1.3rem; font-family: var(--font-body); line-height: 1; }
h1 { font-size: clamp(3.6rem, 6.8vw, 5.75rem); font-weight: 650; letter-spacing: -.068em; line-height: 1.04; }
.spectrum-text { background: var(--iris); background-clip: text; -webkit-background-clip: text; color: transparent; }
.hero-description { max-width: 420px; font-size: 1.125rem; line-height: 1.7; margin-top: 1.7rem; color: var(--fg-secondary); }
.hero-actions { display: flex; gap: .75rem; align-items: center; flex-wrap: wrap; margin-top: 2rem; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: .75rem; min-height: 48px; padding: .8rem 1.25rem; border-radius: 9px; font-size: .875rem; line-height: 1.5; font-weight: 600; transition: background .2s, box-shadow .2s, transform .2s; }
.button-primary { background: var(--fg-snow); color: #101016; border: 1px solid var(--fg-snow); }
.button-primary:hover { background: white; box-shadow: 0 0 28px -8px #8b5cf666; transform: translateY(-2px); }
.button-text { color: var(--fg-secondary); padding-inline: 1rem; }
.button-text:hover { background: #ffffff05; color: white; }
.button .icon { width: 17px; height: 17px; }
.hero-note { display: flex; align-items: center; flex-wrap: wrap; gap: .65rem; font-size: .75rem; margin-top: 1.45rem; color: var(--fg-muted); }
.handle-example { font-family: var(--font-mono); border: 1px solid #ffffff13; background: #ffffff04; border-radius: 5px; padding: .06rem .4rem; color: var(--fg-secondary); }
.orbit-art { position: relative; width: 100%; aspect-ratio: 1; isolation: isolate; }
.orbit-halo { position: absolute; inset: -10%; background: radial-gradient(ellipse, #8b5cf619, #8b5cf608 40%, transparent 68%); z-index: -1; }
.orbit-circle { position: absolute; border: 1px solid #9b83d314; border-radius: 50%; }
.orbit-circle-outer { inset: 2%; }
.orbit-circle-inner { inset: 13%; border-style: dashed; border-color: #9b83d31a; }
.orbit-axis { position: absolute; background: linear-gradient(90deg, transparent, #b69cff12, transparent); }
.orbit-axis-x { left: 0; right: 0; top: 50%; height: 1px; }
.orbit-axis-y { top: 0; bottom: 0; left: 50%; width: 1px; background: linear-gradient(transparent, #b69cff12, transparent); }
.hero-mark { position: absolute; width: 65%; height: auto; top: 17.5%; left: 17.5%; filter: drop-shadow(0 0 20px #b1a1f019); animation: mark-arrive 1s ease-out both; }
.orbit-coordinate { position: absolute; font-family: var(--font-mono); font-size: .75rem; color: #858099; letter-spacing: .1em; line-height: 1.2; }
.coordinate-top { top: -1.4rem; left: 50%; transform: translateX(-50%); white-space: nowrap; }
.coordinate-right { right: -1.6rem; top: 50%; writing-mode: vertical-rl; transform: translateY(-50%); }
.coordinate-bottom { bottom: -1.4rem; left: 50%; transform: translateX(-50%); white-space: nowrap; font-size: .75rem; letter-spacing: .12em; }
.orbit-tag { position: absolute; display: flex; align-items: center; gap: .7rem; padding: .7rem .95rem; border-radius: 11px; border: 1px solid #b5a1e824; background: #12111bdd; box-shadow: 0 12px 35px #00000035; backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); }
.orbit-tag-iris { top: 13%; right: 1%; transform: rotate(5deg); }
.orbit-tag-pupil { bottom: 12%; left: 0; transform: rotate(-5deg); }
.tag-symbol { width: 32px; height: 32px; display: grid; place-items: center; background: #8b5cf616; border: 1px solid #8b5cf630; border-radius: 8px; color: #b79aff; font-size: 1.25rem; }
.orbit-tag-iris .tag-symbol { color: #83d9f3; background: #00f0ff0a; border-color: #00f0ff24; }
.orbit-tag strong { display: block; color: var(--fg-snow); font-size: .875rem; font-weight: 600; line-height: 1.4; }
.orbit-tag div > span { color: var(--fg-secondary); font-size: .75rem; }
.orbit-cross { position: absolute; color: #9284ae; font-family: var(--font-mono); font-size: 1.25rem; font-weight: 400; }
.cross-one { left: 9%; top: 13%; }
.cross-two { right: 10%; bottom: 10%; }
.spectrum-divider { position: relative; height: 1px; background: var(--border); }
.spectrum-divider span { position: absolute; width: 110px; height: 2px; left: 0; top: -1px; background: linear-gradient(90deg, #00f0ff, #4d7cff, #8b5cf6, #d946ef, #f43f5e, #f59e0b); opacity: .85; }
.explore { padding-block: 4.5rem 5rem; }
.section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 2rem; margin-bottom: 2rem; }
.section-eyebrow { color: var(--accent-violet-text); margin-bottom: .65rem; }
h2 { font-size: clamp(2rem, 3.3vw, 2.75rem); font-weight: 550; line-height: 1.13; letter-spacing: -.05em; }
.section-heading > p { font-size: .875rem; line-height: 1.65; color: var(--fg-muted); }
.product-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.25rem; }
.product-card { min-width: 0; padding: 1.85rem 1.85rem 1.3rem; border: 1px solid #ffffff12; border-radius: 16px; background: linear-gradient(140deg, #11111b, #0d0d15); transition: border-color .25s, transform .25s, box-shadow .25s; }
.iris-card:hover { border-color: #58cbe044; box-shadow: 0 8px 35px #00f0ff06; transform: translateY(-3px); }
.pupil-card:hover { border-color: #a077ff55; box-shadow: 0 8px 35px #8b5cf60b; transform: translateY(-3px); }
.product-topline { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: 1.65rem; }
.mono { font-family: var(--font-mono); font-size: .75rem; line-height: 1.5; letter-spacing: .06em; color: var(--fg-muted); }
.product-arrow { color: var(--fg-muted); transition: color .2s, transform .2s; }
.product-card:hover .product-arrow { color: var(--fg-snow); transform: translate(2px, -2px); }
.product-title { display: flex; align-items: center; gap: .75rem; margin-bottom: 1.55rem; flex-wrap: wrap; }
.product-title h3 { font-size: 1.7rem; line-height: 1; font-weight: 600; letter-spacing: -.06em; }
.product-symbol { width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; }
.product-symbol svg { width: 21px; height: 21px; }
.iris-symbol { color: #88d9ed; background: #00f0ff0b; border: 1px solid #00f0ff21; }
.pupil-symbol { color: #c1a5ff; background: #8b5cf614; border: 1px solid #8b5cf638; }
.product-domain { font-family: var(--font-mono); font-size: .75rem; color: var(--fg-muted); margin-left: auto; }
.product-card h4 { font-size: clamp(1.8rem, 3vw, 2.35rem); line-height: 1.15; font-weight: 550; letter-spacing: -.045em; margin-bottom: 1rem; }
.product-description { font-size: 1rem; line-height: 1.65; color: var(--fg-secondary); max-width: 390px; }
.product-preview { margin-top: 1.8rem; height: 224px; border: 1px solid #ffffff0b; border-radius: 10px; overflow: hidden; }
.iris-preview { padding: 1.2rem; background: radial-gradient(ellipse at 80% 10%, #00f0ff08, transparent 80%), #090b12; display: flex; flex-direction: column; justify-content: center; gap: .8rem; }
.preview-caption { display: flex; justify-content: space-between; font-size: .75rem; font-family: var(--font-mono); letter-spacing: .05em; color: var(--fg-muted); margin-bottom: .2rem; }
.preview-caption span:last-child { color: #8dcee2; }
.file-tile { display: flex; align-items: center; gap: .8rem; padding: .9rem; border: 1px solid #ffffff13; background: linear-gradient(110deg, #151923, #10131c); border-radius: 8px; }
.file-icon { display: grid; place-items: center; width: 41px; height: 44px; border: 1px solid #00f0ff26; background: #00f0ff0a; border-radius: 7px; color: #88d9ed; flex-shrink: 0; }
.file-icon svg { width: 21px; height: 21px; }
.file-name { min-width: 0; }
.file-name strong { display: block; font-weight: 500; font-size: .875rem; color: #d8dce9; overflow-wrap: anywhere; }
.file-name span { display: block; font-size: .75rem; color: var(--fg-muted); }
.capture-check { margin-left: auto; width: 17px; height: 17px; color: #88d9ed; }
.link-tile { display: flex; gap: .65rem; align-items: center; background: #8acaf608; border: 1px solid #8acaf617; padding: .65rem .8rem; border-radius: 7px; font-family: var(--font-mono); font-size: .75rem; color: var(--fg-muted); }
.link-tile > span { min-width: 0; overflow-wrap: anywhere; }
.link-tile b { color: #9abed2; font-weight: 400; }
.link-tile .icon { width: 14px; height: 14px; }
.link-tile .icon:last-child { margin-left: auto; }
.pupil-preview { display: grid; place-items: center; padding: 1.2rem 1.5rem 0; background: radial-gradient(ellipse at 50% 100%, #8b5cf618, transparent 75%), #0c0a13; }
.profile-example { width: 100%; max-width: 325px; padding: 1rem 1.1rem; background: linear-gradient(140deg, #21182e, #151020 65%); border: 1px solid #bb9bee30; border-radius: 11px 11px 0 0; transform: translateY(8px) rotate(-3deg); box-shadow: 0 0 40px #8b5cf607; }
.profile-heading { display: flex; gap: .7rem; align-items: center; margin-bottom: 1rem; }
.profile-avatar { display: grid; place-items: center; width: 39px; height: 39px; border-radius: 50%; background: linear-gradient(130deg, #d6bdff, #9164c7); color: #291639; font-size: 1.4rem; font-weight: 500; }
.profile-heading strong { display: flex; align-items: center; gap: .4rem; color: #f6eaff; font-size: 1.125rem; line-height: 1.3; font-weight: 600; }
.profile-heading div > span { font-family: var(--font-mono); font-size: .75rem; color: #b5a2c8; }
.profile-star { color: #b995e8; font-size: .9rem; }
.mini-mark { font-size: .75rem; font-family: var(--font-mono); color: #b5a2c8; margin-left: auto; }
.profile-link { display: flex; align-items: center; justify-content: space-between; gap: .5rem; padding: .45rem .7rem; border: 1px solid #cfb5ed20; background: #ceb0ee07; border-radius: 6px; font-size: .75rem; margin-top: .4rem; color: #decce8; }
.profile-colors { display: flex; gap: 4px; align-items: center; margin-top: .85rem; padding-bottom: .2rem; }
.profile-colors i { width: 5px; height: 5px; border-radius: 50%; background: #00f0ff; }
.profile-colors i:nth-child(2) { background: #4d7cff; }
.profile-colors i:nth-child(3) { background: #8b5cf6; }
.profile-colors i:nth-child(4) { background: #d946ef; }
.profile-colors i:nth-child(5) { background: #f43f5e; }
.profile-colors i:nth-child(6) { background: #f59e0b; }
.profile-colors span { margin-left: auto; font-size: .75rem; color: #b5a2c8; }
.product-bottom { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-top: 1.3rem; }
.product-features { font-size: .75rem; color: var(--fg-muted); }
.product-action { display: flex; align-items: center; gap: .5rem; color: var(--fg-silver); font-size: .875rem; font-weight: 500; white-space: nowrap; }
.product-action .icon { width: 15px; height: 15px; }
.about { display: grid; grid-template-columns: .95fr 1.05fr; gap: 4rem; padding-block: 1rem 5rem; }
.about-intro { padding-top: 1.45rem; }
.about-intro h2 { font-size: clamp(2rem, 3.4vw, 2.8rem); }
.about-details { display: grid; gap: 1.6rem; padding-top: 1.5rem; }
.about-item { display: flex; gap: 1.25rem; }
.about-number { font-family: var(--font-mono); font-size: .75rem; color: var(--accent-violet-text); padding-top: .2rem; }
.about-item h3 { font-size: 1rem; font-weight: 550; margin-bottom: .45rem; letter-spacing: -.02em; }
.about-item p { font-size: 1rem; color: var(--fg-muted); line-height: 1.7; max-width: 420px; }
.join-section { padding-bottom: 4.2rem; }
.join-inner { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 2rem; border: 1px solid #8b5cf626; border-radius: 14px; padding: 2.8rem 3rem; background: radial-gradient(ellipse at 100% 0%, #8b5cf60d, transparent 65%), #0e0c15; }
.join-inner::before { content: ''; position: absolute; top: -1px; left: 3rem; right: 3rem; height: 1px; background: linear-gradient(90deg, transparent, #8b5cf680, transparent); }
.join-inner h2 { font-size: clamp(1.9rem, 3.5vw, 2.75rem); }
.join-inner p:last-child { font-size: 1rem; margin-top: .8rem; color: var(--fg-muted); }
.join-inner > .button { flex-shrink: 0; }
.footer { border-top: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; padding-block: 1.8rem 2.1rem; }
.footer-brand > span { font-size: 1rem; }
.footer > p { font-size: .75rem; color: var(--fg-muted); }
.footer nav { display: flex; align-items: center; gap: 1.5rem; }
.footer nav a { font-size: .75rem; color: var(--fg-secondary); padding-block: .5rem; }
.footer nav a:hover { color: var(--fg-snow); }
.footer nav a span { margin-left: .3rem; color: var(--fg-muted); }
@keyframes mark-arrive { from { opacity: 0; transform: translateY(10px) rotate(-5deg); } to { opacity: 1; transform: translateY(0) rotate(0); } }
@media (min-width: 1440px) { .hero { min-height: 690px; padding-block: 7rem 6rem; } }
@media (max-width: 1000px) {
  .hero { min-height: 585px; padding-block: 5rem; gap: 2.5rem; }
  .hero .eyebrow { font-size: .75rem; letter-spacing: .065em; }
  h1 { font-size: clamp(3.5rem, 7.1vw, 5rem); }
  .hero-description { font-size: 1rem; }
  .orbit-coordinate { font-size: .75rem; }
  .orbit-tag { padding: .5rem .65rem; gap: .5rem; }
  .orbit-tag-iris { right: -3%; top: 9%; }
  .orbit-tag-pupil { left: -7%; bottom: 5%; }
  .orbit-tag div > span { font-size: .75rem; }
  .coordinate-right { right: -1.2rem; }
  .product-card { padding: 1.4rem 1.4rem 1.15rem; }
  .product-title { gap: .6rem; }
  .product-domain { font-size: .75rem; }
  .product-description { min-height: 5rem; }
  .product-bottom { align-items: flex-start; flex-direction: column; gap: .6rem; }
  .about { gap: 2.5rem; }
  .join-inner { padding: 2.3rem; }
  .footer > p { display: none; }
}
@media (max-width: 720px) {
  .container { width: min(100% - 2.5rem, 560px); }
  .topbar-inner { min-height: 68px; gap: 1rem; }
  .brand > span { font-size: 1.125rem; }
  .brand img { width: 24px; height: 24px; }
  .navigation { margin: 0 0 0 auto; gap: 1rem; }
  .navigation a { font-size: .875rem; }
  .navigation a:last-child { display: none; }
  .nav-signin { border: 0; padding: .5rem 0 .5rem .25rem; gap: .4rem; font-size: .875rem; }
  .hero { grid-template-columns: 1fr; padding-block: 3.8rem 2.8rem; gap: 3.25rem; }
  h1 { font-size: clamp(3.5rem, 12vw, 4.8rem); }
  .hero .eyebrow { font-size: .75rem; letter-spacing: .045em; margin-bottom: 1.3rem; }
  .hero-description { max-width: 390px; font-size: 1.0625rem; margin-top: 1.4rem; }
  .hero-actions { margin-top: 1.6rem; gap: .4rem; }
  .button { padding: .8rem 1rem; }
  .button-text { padding-inline: .85rem; }
  .hero-note { font-size: .75rem; }
  .orbit-art { width: min(80%, 320px); justify-self: center; margin-block: 1rem 1.6rem; }
  .orbit-tag-iris { right: -10%; top: 10%; }
  .orbit-tag-pupil { left: -10%; bottom: 7%; }
  .coordinate-right { right: -1.2rem; }
  .coordinate-top { top: -1.4rem; }
  .coordinate-bottom { bottom: -1.5rem; }
  .explore { padding-block: 3rem 3.2rem; }
  .section-heading { gap: 1rem; margin-bottom: 1.7rem; }
  .section-heading > p { display: none; }
  .product-grid { grid-template-columns: 1fr; gap: 1.25rem; }
  .product-card { padding: 1.4rem 1.4rem 1.2rem; }
  .product-topline { margin-bottom: 1.5rem; }
  .product-title { margin-bottom: 1.3rem; }
  .product-card h4 { font-size: 2.125rem; }
  .product-description { min-height: 0; }
  .product-preview { height: 213px; margin-top: 1.5rem; }
  .product-bottom { flex-direction: row; align-items: center; gap: .65rem; }
  .product-features { font-size: .75rem; }
  .product-action { font-size: .875rem; gap: .35rem; }
  .about { grid-template-columns: 1fr; gap: 1.5rem; padding-block: 0 3.2rem; }
  .about-intro { padding-top: .5rem; }
  .about-details { padding-top: 0; gap: 1.5rem; }
  .about-item { gap: 1rem; }
  .join-section { padding-bottom: 2.75rem; }
  .join-inner { flex-direction: column; align-items: flex-start; gap: 1.5rem; padding: 1.75rem 1.4rem; }
  .join-inner h2 { font-size: 2.2rem; }
  .join-inner .button { width: 100%; }
  .footer { flex-wrap: wrap; padding-block: 1.5rem; gap: 1rem; }
  .footer nav { gap: 1rem; }
  .footer nav a:last-child { display: none; }
}
@media (max-width: 360px) {
  .container { width: calc(100% - 2rem); }
  .navigation { display: none; }
  h1 { font-size: 3.3rem; }
  .hero-actions { align-items: flex-start; flex-direction: column; }
  .button-text { padding-left: 0; }
  .hero-note { display: block; line-height: 1.9; }
  .hero-note .handle-example { margin-right: .35rem; }
  .product-bottom { flex-direction: column; align-items: flex-start; }
  .product-domain { margin-left: 0; }
  .product-preview { padding-inline: .8rem; }
  .profile-example { padding-inline: .8rem; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}
@media (forced-colors: active) {
  .spectrum-text { background: none; color: CanvasText; }
  .button-primary { border: 1px solid ButtonText; }
}