/* Brand finish: optical hierarchy, orbital lighting and technical linework. */
:root {
  --bg: #070d17;
  --blue: #92bfff;
  --text: #f0f4fc;
}

html { scroll-padding-top: 122px; }
body { background: radial-gradient(ellipse at 88% 0, #12294744, transparent 34%), var(--bg); }
.reading-progress {
  position: fixed;
  z-index: 60;
  inset: 0 0 auto;
  height: 2px;
  background: linear-gradient(90deg, #285694, #a4ccff);
  transform: scaleX(0);
  transform-origin: left;
  pointer-events: none;
}

/* A floating, compact navigation stays useful through the long presentation. */
.header {
  position: sticky;
  top: 16px;
  z-index: 40;
  height: 83px;
  margin-top: 20px;
  padding: 0 25px;
  border: 1px solid #9dbce32a;
  border-radius: 10px;
  background: #0b1422d9;
  box-shadow: 0 8px 35px #0003, inset 0 1px #e4eeff08;
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
}
.header .brand img { width: 40px; height: 40px; }
.header .brand > span { font-size: 17px; letter-spacing: .15em; }
.header .brand small { color: #8da4c5; font-size: 7px; }
.navigation { gap: 7px; }
.navigation a {
  padding: 10px 16px;
  border-radius: 5px;
  color: #afc0d8;
  font-size: 11px;
  transition: background .2s, color .2s;
}
.navigation a:hover, .navigation a[aria-current="location"] { background: #3c63972b; color: #e8f2ff; }
.nav-contact {
  border: 1px solid #93b9eb38;
  background: linear-gradient(120deg, #27456944, #233b5922);
  padding: 11px 15px;
  border-radius: 5px;
  gap: 25px;
  font-size: 11px;
  transition: border-color .2s, background .2s;
}
.nav-contact:hover { border-color: #adcfff88; background: #365b8b44; }

/* The logo is a stable centre; only the surrounding orbital line moves. */
.top-surface {
  position: relative;
  overflow: clip;
  background:
    radial-gradient(ellipse at 78% 19%, #1b4e8538, transparent 35%),
    radial-gradient(ellipse at 5% 0, #10233e55, transparent 43%),
    linear-gradient(#090f1a, #080f1b);
}
.top-surface::before {
  content: '';
  position: absolute;
  inset: 0 0 auto;
  height: 850px;
  pointer-events: none;
  background: repeating-linear-gradient(125deg, transparent 0 217px, #a4c7f306 218px, transparent 219px 436px);
  mask-image: linear-gradient(#0008, transparent);
}
.hero { position: relative; padding-block: 101px 86px; gap: 32px; }
.hero h1 { font-size: clamp(58px, 5.85vw, 84px); font-weight: 500; letter-spacing: -.059em; line-height: 1.075; }
.hero h1 em {
  background: linear-gradient(105deg, #e1eeff -10%, #a1c8ff 30%, #5f98ea 85%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-eyebrow { gap: 15px; margin-bottom: 29px; }
.hero-eyebrow .status {
  border: 1px solid #8eb7e94a;
  padding: 6px 9px;
  border-radius: 4px;
  background: #1c385626;
  font-size: 8px;
  letter-spacing: .08em;
}
.hero-description { font-size: 14px; color: #aebfd6; line-height: 1.95; max-width: 450px; }
.button-primary {
  min-height: 54px;
  padding-inline: 21px;
  background: linear-gradient(130deg, #e3eeff, #a8c8f8);
  border: 1px solid #edf5ff66;
  box-shadow: 0 6px 24px #4a8df426, inset 0 1px #fff;
}
.button .icon { transition: transform .25s; }
.button:hover .icon { transform: translateX(3px); }
.hero-footnote { color: #899fbd; }
.hero-visual { transform: none; }
.hero-visual::before {
  inset: 15%;
  background: radial-gradient(ellipse, #07101b 15%, #3168a538 65%, transparent 72%);
  filter: blur(24px);
}
.orbital-light {
  position: absolute;
  inset: 14%;
  border-radius: 50%;
  background: conic-gradient(from 25deg, transparent 8%, #80b5ff1a 22%, transparent 35%, #97cfff22 52%, transparent 68%, #578be61c 82%, transparent);
  filter: blur(22px);
  opacity: .95;
}
.hero-visual::after {
  content: '';
  position: absolute;
  bottom: 8%;
  left: 17%;
  right: 17%;
  height: 8%;
  background: #75adff21;
  filter: blur(21px);
  border-radius: 50%;
  z-index: -1;
}
.hero-symbol {
  width: 79%;
  animation: none;
  transform: none;
  filter: drop-shadow(0 26px 22px #0009) drop-shadow(0 0 25px #518ce724);
}
.hero-orbits { overflow: visible; }
.orbital-signal { transform-origin: 300px 300px; animation: none; }
.visual-grid { opacity: .5; background-size: 24px 24px; }
.coordinate-top { top: 0; right: 4%; color: #83a5ce; }
.coordinate-bottom { bottom: -2%; color: #7694b8; }
.orbit-note {
  border-color: #a2c8fb33;
  border-radius: 7px;
  background: linear-gradient(125deg, #1b2b42ed, #0b1627ed);
  box-shadow: 0 14px 35px #0005, inset 0 1px #dceaff09;
  padding: 14px 16px;
}
.note-icon { border-radius: 6px; background: #3a61922b; border-color: #91b7e84a; }
.note-one { left: -4%; top: 12%; }
.note-two { right: -2%; top: 51%; }
.note-three { left: 3%; bottom: 7%; border-color: #9abff55a; }
.principle-band { position: relative; border-top-color: #a4c9fb33; }
.principle-band::before {
  content: '';
  width: 76px;
  height: 1px;
  position: absolute;
  top: -1px;
  left: 0;
  background: #a1c9ff;
  box-shadow: 0 0 14px #83b7ff88;
}
.principle-band > div > span { display: flex; align-items: center; gap: 9px; }
.principle-band > div > span::before { content: ''; width: 3px; height: 3px; border: 1px solid #7fa2d0; transform: rotate(45deg); }

/* Metal-edged product frame; blue and sea-glass distinguish context and proof. */
.section-label { display: flex; align-items: center; gap: 11px; font-size: 9px; }
.section-label::before { content: ''; height: 1px; width: 22px; background: currentColor; opacity: .7; }
h2 { letter-spacing: -.048em; }
.console-section { position: relative; }
.console-frame {
  position: relative;
  border-radius: 12px;
  border-color: #87a8d148;
  box-shadow: 0 24px 70px #0007, 0 0 0 6px #b2ceff03, 0 0 0 7px #a3c2ec10;
  background: radial-gradient(ellipse at 50% 0, #162d4c44, transparent 80%), #0b1523;
}
.console-frame::before {
  content: '';
  position: absolute;
  top: 0;
  left: 12%;
  right: 12%;
  height: 1px;
  background: linear-gradient(90deg, transparent, #c0d9ff8a, transparent);
  pointer-events: none;
}
.console-chrome { background: linear-gradient(100deg, #1a2940, #111d2e); border-color: #769aca26; height: 46px; }
.window-dots i:first-child { background: #9fbde2; }
.preview-tag { background: #799dc70a; color: #9fb5d1; }
.console-rail { background: #09121feb; }
.console-rail .rail-selected { box-shadow: inset 2px 0 #88baff, 0 0 18px #397dda1c; background: #23466c50; }
.console-workspace { padding-top: 30px; }
.workspace-heading h3 { font-size: 18px; }
.preview-tabs { gap: 14px; }
.preview-tabs button { padding: 10px 14px 13px; font-size: 11px; border-radius: 5px 5px 0 0; transition: color .2s, background .2s; }
.preview-tabs button[aria-selected="true"] { background: linear-gradient(#689fee12, #689fee05); border-bottom-color: #a0c5ff; }
.graph-viewport { background-size: 17px 17px; background-image: radial-gradient(#7799ce2b .65px, transparent .65px); }
.graph-connectors { stroke: #79a6e080; }
.graph-connectors .path-proof { stroke: #91d3cf; stroke-dasharray: 4 7; animation: evidence-trace 16s linear infinite; }
.graph-node { border-color: #87b1e342; background: linear-gradient(120deg, #21354f, #142238); border-radius: 7px; box-shadow: 0 9px 20px #0003, inset 0 1px #c0dcff09; }
.node-type { display: flex; align-items: center; gap: 6px; font-size: 7px; }
.node-type .icon { width: 11px; height: 11px; }
.graph-node strong { font-size: 12px; }
.node-detail { color: #a4b6cf; font-size: 8px; }
.node-hypothesis { border-color: #93c0ff8a; box-shadow: 0 0 24px #528fe31a, inset 2px 0 #7caeff88; }
.node-evidence { border-color: #88c6c37d; background: linear-gradient(120deg, #193940, #142631); box-shadow: 0 0 25px #63aaa910; }
.node-footer { color: #9ab7d8; }
.node-evidence .node-footer { color: #a4d7d0; }
.node-footer i { box-shadow: 0 0 8px currentColor; }
.graph-proof { color: #b1d9d1; }

/* An editorial excerpt from a real, controlled test — not a live console. */
.case-tag { color: #b3d9d3; border-color: #8fc4ba45; background: #75b5aa0a; }
.case-evidence { min-height: 234px; }
.case-evidence > div { padding-block: 22px 18px; }
.case-evidence pre { font-size: 11px; line-height: 1.8; }
.evidence-verdict { display: flex; align-items: center; gap: 12px; padding: 12px 14px; margin-bottom: 12px; border: 1px solid #dfbc8833; border-radius: 5px; background: #b17b2f0c; }
.verdict-mark { display: grid; place-items: center; width: 19px; height: 19px; flex-shrink: 0; border: 1px solid #dfbc8866; border-radius: 50%; color: #dfbc88; font: 10px var(--mono); }
.evidence-verdict p { color: #c7bda9; font-size: 10px; line-height: 1.7; }
.evidence-verdict code { color: #dfbc88; font-family: var(--mono); }
.case-summary { padding-block: 19px 15px; }
.case-controls { margin-bottom: 16px; }
.case-controls .control-row { padding-block: 11px; }
.replay-result { display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 13px 15px; margin-bottom: 15px; border: 1px solid #86bfb337; border-radius: 5px; background: linear-gradient(110deg, #6bad9c12, #6bad9c03); }
.replay-result strong { display: block; color: #c1d4de; font-size: 10px; font-weight: 500; line-height: 1.6; margin-top: 5px; }
.replay-count { color: #9ec5ba; font: 9px/1.9 var(--mono); white-space: nowrap; }
.replay-count b { color: #c6e7dd; font-weight: 500; font-size: 14px; }
.replay-count i { font-style: normal; padding-inline: 7px; color: #6b8b8b; }
@media (max-width: 800px) {
  .replay-result { align-items: flex-start; flex-direction: column; gap: 8px; }
}
@media (max-width: 600px) {
  .workspace-heading { flex-wrap: wrap; }
  .workspace-heading > div { min-width: 0; }
  .workspace-heading .scenario-label { font-size: 7px; }
  .case-evidence > div { padding-block: 20px; }
  .case-evidence pre { font-size: 10px; }
  .evidence-verdict { padding: 12px 10px; align-items: flex-start; }
  .evidence-verdict p { font-size: 10px; }
  .case-controls .control-row { grid-template-columns: 1.35fr 1fr; font-size: 9px; }
  .case-controls .control-head { font-size: 6px; }
  .replay-result { padding: 13px 11px; }
  .replay-result strong { font-size: 10px; }
}

/* An airy, blueprint-like interlude, with the graphs treated as an illustration. */
.light-section {
  position: relative;
  background: radial-gradient(ellipse at 75% 90%, #d3dfed, transparent 50%), #edf1f6;
  border-top: 1px solid #f6f9ff;
  border-bottom: 1px solid #bdcbdc;
}
.light-section::before {
  content: '';
  position: absolute;
  inset: 0 0 auto;
  height: 90px;
  pointer-events: none;
  background: linear-gradient(#1026410a, transparent);
}
.light-section h2 { color: #14243a; }
.process-line { margin-top: 57px; gap: 32px; }
.process-line article { padding-top: 26px; border-color: #a6bbd2; }
.process-line article::before { width: 6px; height: 6px; border-color: #6c90bb; background: #d3e1f3; box-shadow: 0 0 0 5px #ecf1f7; }
.step-index { font: 400 32px/1 Manrope, sans-serif; letter-spacing: -.06em; color: #87a0bf; }
.process-line h3 { margin-top: 18px; font-size: 17px; }
.process-line p { color: #4e6380; line-height: 1.9; }
.step-meta { color: #516d91; }
.dual-graph-story { margin-top: 62px; padding-top: 55px; }
.dual-graph-visual {
  position: relative;
  isolation: isolate;
  padding: 35px 27px;
  border-radius: 10px;
  border-color: #9bb4d44a;
  background: linear-gradient(135deg, #fff9, #ecf3fb88);
  box-shadow: 0 20px 45px #4a6c930e, inset 0 1px #fff;
}
.dual-graph-visual::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image: radial-gradient(#5b7fad44 .7px, transparent .7px);
  background-size: 17px 17px;
  mask-image: radial-gradient(ellipse, #0009, transparent 75%);
}
.mini-graph svg { stroke-width: 1.2; }
.mini-graph svg circle { fill: #f0f6ff; stroke: #739ac9; }
.mini-graph svg circle:first-of-type { fill: #4e82c6; stroke: #3f75bb; filter: drop-shadow(0 0 6px #88b2e680); }
.mini-graph svg path { stroke: #8eadd4; }
.mini-graph strong { color: #375b87; font-size: 11px; }
.graph-bridge { border: 1px solid #97b6dd66; background: #fff9; display: grid; place-items: center; width: 34px; height: 34px; flex-shrink: 0; border-radius: 50%; font-size: 19px; box-shadow: 0 3px 12px #476d9e0a; }

/* The timeline carries the same visual distinction between now and direction. */
.development-section { position: relative; background: radial-gradient(ellipse at 4% 50%, #214c7d1a, transparent 47%), #0c1523; }
.development-section::before { content: ''; position: absolute; top: -1px; left: 12%; width: 58px; height: 2px; background: #8bb7f2; box-shadow: 0 0 20px #8bb7f255; }
.development-grid { gap: 88px; }
.development-copy h2 { font-size: 48px; }
.development-copy h2 span { color: #9bc6ff; }
.development-stamp { background: #7faff30a; border-radius: 4px; border-color: #94b6e34a; }
.roadmap > article { border: 1px solid #90b7e426; border-radius: 8px; padding: 24px 23px; margin-bottom: 12px; gap: 18px; background: linear-gradient(120deg, #16263a70, #15213430); }
.roadmap > article:first-child { border-color: #80b6b94d; background: linear-gradient(120deg, #23404438, #17293d44); }
.roadmap-index { color: #7590b4; font-size: 10px; padding-top: 1px; }
.roadmap-index > span { display: none; }
.roadmap h3 { font-size: 16px; }
.roadmap article p { font-size: 12px; color: #a0b2cb; }
.roadmap-note { padding: 5px 0 0; font-size: 9px; }

/* A quiet brand watermark gives the contact its own finish. */
.contact-card { border-radius: 12px; border-color: #91bbed4d; background: radial-gradient(ellipse at 85% 40%, #3e6aa93d, transparent 65%), linear-gradient(115deg, #183351, #10223b); box-shadow: inset 0 1px #d2e8ff0d, 0 24px 70px #0002; }
.contact-card::before { display: none; }
.contact-card { align-items: center; }
.contact-brand { display: flex; flex-direction: column; align-items: center; gap: 20px; justify-self: end; width: min(100%, 310px); }
.contact-logo { display: block; flex-shrink: 0; width: 185px; height: 185px; max-width: 100%; object-fit: contain; opacity: .2; filter: grayscale(1); }
.contact-brand .contact-email { width: 100%; min-width: 0; align-self: center; margin-top: 0; }
.contact-card::after { width: 620px; height: 620px; right: -90px; bottom: -390px; border-color: #9fc7ff16; box-shadow: 0 0 0 40px #94bcf503, 0 0 0 80px #94bcf503; }
.contact-card > * { position: relative; z-index: 1; }
.contact-card h2 { font-weight: 450; letter-spacing: -.05em; }
.contact-card > div > p:not(.section-label) { font-size: 12px; }
.contact-email { border: 1px solid #eaf4ff88; background: linear-gradient(130deg, #edf5ff, #bdd7fa); box-shadow: 0 10px 35px #0002, inset 0 1px #fff; }
.footer-wordmark { text-align: center; font-size: clamp(50px, 12.7vw, 184px); font-weight: 600; line-height: 1.2; letter-spacing: -.055em; background: linear-gradient(#bbd2f218, #b7cfee04); -webkit-background-clip: text; background-clip: text; color: transparent; padding-bottom: 30px; user-select: none; }
.footer-top { padding-top: 16px; border-top: 1px solid #9cb8de20; }
.footer-bottom { color: #8b9fb9; }

@keyframes evidence-trace { to { stroke-dashoffset: -176; } }

@media (min-width: 1600px) {
  .hero h1 { font-size: 91px; }
  .hero { padding-block: 113px 99px; }
}
@media (max-width: 1100px) {
  .header { height: 78px; padding-inline: 20px; }
  .navigation a { padding-inline: 12px; font-size: 10px; }
  .nav-contact { font-size: 10px; gap: 15px; }
  .hero { gap: 16px; padding-block: 82px 77px; }
  .hero h1 { font-size: clamp(52px, 6vw, 68px); }
  .hero-eyebrow { gap: 10px; }
  .hero-description { font-size: 13px; }
  .orbit-note { padding: 11px 12px; }
  .button-primary { padding-inline: 17px; }
  .development-grid { gap: 50px; }
  .development-copy h2 { font-size: 42px; }
  .roadmap > article { padding: 21px 18px; }
  .roadmap article p { font-size: 11px; }
  .contact-logo { width: 165px; height: 165px; }
}
@media (max-width: 800px) {
  .header { padding-inline: 17px; gap: 18px; }
  .header .brand > span { font-size: 14px; }
  .header .brand img { width: 34px; height: 34px; }
  .header .brand small { font-size: 5px; }
  .navigation { gap: 1px; }
  .navigation a { padding-inline: 10px; }
  .hero h1 { font-size: 51px; }
  .hero-description { font-size: 12px; }
  .hero-eyebrow .status { font-size: 7px; }
  .hero { padding-block: 67px; }
  .hero-visual { transform: none; }
  .orbit-note { padding: 10px; }
  .note-one { left: -1%; top: 5%; }
  .note-three { left: 0; bottom: 0; }
  .coordinate-top { top: -9%; font-size: 5px; }
  .coordinate-bottom { bottom: -14%; font-size: 5px; }
  .preview-tabs { gap: 6px; }
  .preview-tabs button { font-size: 10px; padding-inline: 12px; }
  .process-line { gap: 32px; }
  .dual-graph-visual { padding: 30px 35px; }
  .development-grid { gap: 35px; }
  .development-copy h2 { font-size: 35px; }
  .roadmap > article { gap: 11px; padding: 20px 16px; grid-template-columns: 22px 1fr; }
  .roadmap h3 { font-size: 14px; }
  .roadmap article p { font-size: 10px; }
  .contact-brand { justify-self: start; flex-direction: row; width: 100%; gap: 25px; }
  .contact-logo { width: 120px; height: 120px; }
}
@media (max-width: 600px) {
  html { scroll-padding-top: 105px; }
  .header { top: 10px; height: 70px; margin-top: 12px; padding-inline: 12px; border-radius: 8px; gap: 12px; }
  .header .brand { gap: 7px; }
  .header .brand > span { font-size: 13px; }
  .header .brand img { width: 30px; height: 30px; }
  .header .brand small { font-size: 4.5px; letter-spacing: .03em; }
  .nav-contact { padding: 9px 10px; font-size: 10px; gap: 14px; min-height: 38px; }
  .nav-contact .icon { width: 13px; height: 13px; }
  .hero { padding-block: 44px 49px; gap: 47px; }
  .hero h1 { font-size: clamp(46px, 11.2vw, 65px); letter-spacing: -.056em; }
  .hero-eyebrow { gap: 10px; font-size: 6px; margin-bottom: 24px; }
  .hero-eyebrow .status { font-size: 6px; padding: 5px 7px; gap: 5px; }
  .hero-eyebrow .status i { width: 4px; height: 4px; }
  .hero-description { font-size: 13px; margin-top: 25px; }
  .button-primary { min-height: 51px; padding-inline: 15px; font-size: 10px; }
  .hero-footnote { font-size: 8px; }
  .hero-visual { width: min(385px, 96%); margin-top: 6px; }
  .hero-symbol { width: 79%; }
  .orbit-note { border-radius: 6px; padding: 10px 11px; }
  .note-one { left: -1%; top: 7%; }
  .note-two { right: 0; top: 50%; }
  .note-three { left: 2%; bottom: 2%; }
  .coordinate-top { right: 6%; top: -2%; font-size: 5px; }
  .coordinate-bottom { bottom: -7%; font-size: 5px; }
  .principle-band > div > span { gap: 7px; }
  .principle-band > div > span::before { width: 2px; height: 2px; }
  .section-label { font-size: 7px; gap: 8px; }
  .section-label::before { width: 15px; }
  .console-frame { border-radius: 9px; box-shadow: 0 15px 45px #0006, 0 0 0 4px #a3c2ec08; }
  .console-chrome { height: 35px; }
  .console-workspace { padding-top: 23px; }
  .workspace-heading h3 { font-size: 15px; }
  .preview-tabs { justify-content: space-between; gap: 3px; }
  .preview-tabs button { font-size: 9px; padding: 10px 7px 12px; }
  .graph-node strong { font-size: 12px; }
  .node-type { font-size: 7px; }
  .node-detail { font-size: 9px; }
  .exploration-graph { height: 580px; }
  .node-root { top: 20px; }
  .node-recon { top: 139px; }
  .node-hypothesis { top: 231px; }
  .node-control { top: 323px; }
  .node-evidence { top: 415px; }
  .graph-proof { top: 547px; background: #0b1523; }
  .process-line { gap: 31px 24px; margin-top: 36px; }
  .step-index { font-size: 29px; }
  .process-line h3 { font-size: 15px; margin-top: 15px; }
  .process-line p { font-size: 12px; }
  .dual-graph-story { margin-top: 40px; padding-top: 35px; }
  .dual-graph-visual { padding: 25px 13px; border-radius: 8px; }
  .mini-graph strong { font-size: 8px; }
  .graph-bridge { height: 26px; width: 26px; font-size: 16px; }
  .development-copy h2 { font-size: 37px; }
  .development-grid { gap: 36px; }
  .roadmap > article { padding: 23px 17px; gap: 13px; }
  .roadmap h3 { font-size: 16px; }
  .roadmap article p { font-size: 11px; }
  .roadmap-note { font-size: 8px; padding-top: 6px; }
  .contact-card { border-radius: 10px; }
  .contact-brand { flex-direction: column; gap: 18px; }
  .contact-logo { width: 140px; height: 140px; }
  .contact-card::after { width: 420px; height: 420px; right: -180px; bottom: -210px; }
  .contact-card > div > p:not(.section-label) { font-size: 12px; }
  .contact-email { font-size: 13px; }
  .footer-wordmark { font-size: 13vw; padding-bottom: 25px; }
}
@media (max-width: 359px) {
  .header .brand > span { font-size: 11px; }
  .header .brand small { font-size: 4px; }
  .nav-contact { gap: 9px; font-size: 9px; padding-inline: 8px; }
  .hero h1 { font-size: 43px; }
  .hero-eyebrow { font-size: 5px; gap: 7px; }
  .hero-eyebrow .status { font-size: 5px; }
  .button-primary { font-size: 9px; padding-inline: 12px; }
  .hero-actions { gap: 16px; }
  .hero-footnote { font-size: 7px; }
  .preview-tabs button { font-size: 8px; padding-inline: 5px; }
  .roadmap > article { padding-inline: 13px; gap: 9px; }
  .roadmap h3 { font-size: 14px; }
}
/* Clear click targets: a quiet glow invites exploration without moving content. */
.preview-switch-hint { display: flex; align-items: center; gap: 7px; color: #a6bfdf; font-size: 10px; line-height: 1.6; margin-bottom: 10px; }
.preview-switch-hint .icon { width: 13px; height: 13px; color: #95c4ff; }
.preview-tabs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; border-bottom: 0; padding-bottom: 16px; }
.preview-tabs button { position: relative; display: flex; align-items: center; gap: 10px; min-width: 0; min-height: 48px; padding: 11px 13px; border: 1px solid #7eafe95c; border-radius: 6px; color: #bed3ed; background: linear-gradient(115deg, #29476b42, #15283e88); text-align: left; white-space: normal; line-height: 1.5; cursor: pointer; touch-action: manipulation; transition: background .2s, border-color .2s, color .2s, box-shadow .2s; }
.preview-tabs button::after { content: ''; position: absolute; inset: -1px; border: 1px solid #97c7ff8c; border-radius: inherit; box-shadow: 0 0 15px #6aa7ff35, inset 0 0 12px #7cafff0a; opacity: .4; pointer-events: none; }
.preview-tabs .view-number { flex-shrink: 0; color: #8fb9eb; font: 9px var(--mono); }
.preview-tabs .view-arrow { width: 15px; height: 15px; margin-left: auto; color: #8fb9eb; }
.preview-tabs button[aria-selected="true"] { color: #eef6ff; border-color: #a5ccffb3; background: linear-gradient(115deg, #3c64916b, #25436580); box-shadow: inset 0 2px #bedaff, 0 0 16px #6aa7ff18; }
.preview-tabs button[aria-selected="true"]::after { opacity: 0; }
.preview-tabs button[aria-selected="true"] .view-number, .preview-tabs button[aria-selected="true"] .view-arrow { color: #d5e8ff; }
.preview-tabs button:hover, .preview-tabs button:focus-visible { color: #f0f7ff; border-color: #b5d6ff; background: #294667; box-shadow: 0 0 20px #79b0ff26; }
.preview-tabs button:focus-visible { outline: 2px solid #d0e6ff; outline-offset: 3px; }
.preview-tabs button:active { background: #35577e; }
.preview-tabs button:hover::after, .preview-tabs button:focus-visible::after { animation: none; opacity: .6; }
@keyframes view-invitation { 0%, 100% { opacity: .2; } 50% { opacity: .85; } }
@media (prefers-reduced-motion: no-preference) {
  .preview-tabs button[aria-selected="false"]::after { animation: view-invitation 4.8s ease-in-out infinite; }
  .preview-tabs button[aria-selected="false"]:hover::after, .preview-tabs button[aria-selected="false"]:focus-visible::after { animation: none; }
}
@media (max-width: 600px) {
  .preview-switch-hint { font-size: 9px; margin-top: -3px; }
  .preview-tabs { gap: 7px; padding-bottom: 14px; }
  .preview-tabs button { min-height: 66px; padding: 9px 8px; flex-direction: column; align-items: flex-start; justify-content: center; gap: 5px; font-size: 9px; }
  .preview-tabs button > span:not(.view-number) { padding-right: 6px; }
  .preview-tabs .view-number { font-size: 8px; }
  .preview-tabs .view-arrow { position: absolute; top: 10px; right: 8px; width: 12px; height: 12px; }
}
@media (max-width: 359px) {
  .preview-tabs { gap: 6px; }
  .preview-tabs button { font-size: 8px; padding-inline: 7px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}