:root {
  --white: #ffffff;
  --paper: #f6f7f9;
  --line: #e4e6ea;
  --ink: #0a0a0b;
  --ink-2: #2a2c31;
  --muted: #5d616b;
  --black: #0a0a0b;
  --on-black: #f4f5f7;
  --on-black-muted: #a3a7b0;
  --blue: #2563eb;
  --blue-dark: #1d4ed8;
  --blue-soft: #e8efff;
  --m: clamp(20px, 4vw, 56px);
  --max: 1240px;
  --gap: clamp(96px, 11vw, 160px);
  --font: "Helvetica Neue", Helvetica, Arial, sans-serif;
  --t-sm: 16px;
  --t-md: clamp(18px, 1.45vw, 21px);
  --t-lg: clamp(24px, 2.2vw, 30px);
  --t-xl: clamp(40px, 5.4vw, 72px);
  --t-hero: clamp(52px, 11.2vw, 172px);
  --r: 12px;
  --ease: cubic-bezier(.22, .8, .24, 1);
  --shadow-btn: 0 1px 1px rgba(10, 10, 11, .08), 0 2px 4px rgba(10, 10, 11, .08), 0 8px 18px -6px rgba(10, 10, 11, .22);
  --shadow-btn-hover: 0 1px 1px rgba(10, 10, 11, .08), 0 4px 8px rgba(10, 10, 11, .10), 0 16px 30px -10px rgba(10, 10, 11, .30);
  --shadow-blue: 0 1px 1px rgba(29, 78, 216, .25), 0 3px 6px rgba(29, 78, 216, .22), 0 10px 24px -8px rgba(37, 99, 235, .55);
  --shadow-blue-hover: 0 1px 1px rgba(29, 78, 216, .25), 0 6px 12px rgba(29, 78, 216, .25), 0 18px 36px -10px rgba(37, 99, 235, .6);
  --shadow-card: 0 1px 2px rgba(10, 10, 11, .05), 0 6px 20px -8px rgba(10, 10, 11, .10);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; -webkit-text-size-adjust: 100%; }
body { background: var(--white); color: var(--ink); font-family: var(--font); font-size: 17px; line-height: 1.55;
       -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; overflow-x: clip; }
a { color: inherit; }
ul, ol { list-style: none; }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 3px; border-radius: 6px; }
::selection { background: var(--blue); color: var(--white); }
.skip { position: absolute; left: -9999px; top: 8px; background: var(--ink); color: var(--white); padding: 8px 14px; z-index: 50; border-radius: 8px; }
.skip:focus { left: 8px; }

/* Each section keeps its content in one centred column with equal margins. */
.hero, .services, .work, .process, .contact, .foot { padding-left: max(var(--m), calc((100% - var(--max)) / 2));
                                                     padding-right: max(var(--m), calc((100% - var(--max)) / 2)); }

/* Buttons: a real, pressable button. Light from above, shadow below, lifts on hover, presses on click. */
.btn { position: relative; display: inline-flex; align-items: center; justify-content: center; gap: 10px;
       min-height: 48px; padding: 0 22px; border-radius: var(--r); border: 0; cursor: pointer;
       font: 600 var(--t-sm)/1 var(--font); text-decoration: none; white-space: nowrap; letter-spacing: -.005em;
       transition: transform .2s var(--ease), box-shadow .2s var(--ease), background-color .2s, color .2s; }
.btn-lg { min-height: 56px; padding: 0 28px; font-size: 17px; }
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(1px); transition-duration: .06s; }
.btn .arrow { display: inline-block; transition: transform .2s var(--ease); }
.btn:hover .arrow { transform: translateX(3px); }

.btn-primary { background: var(--blue); color: var(--white); box-shadow: inset 0 1px 0 rgba(255, 255, 255, .22), var(--shadow-blue); }
.btn-primary:hover { background: var(--blue-dark); box-shadow: inset 0 1px 0 rgba(255, 255, 255, .22), var(--shadow-blue-hover); }
.btn-primary:active { box-shadow: inset 0 2px 4px rgba(0, 0, 0, .2), 0 1px 2px rgba(29, 78, 216, .3); }

.btn-secondary { background: var(--white); color: var(--ink); box-shadow: inset 0 0 0 1px var(--line), var(--shadow-btn); }
.btn-secondary:hover { box-shadow: inset 0 0 0 1px #d3d6dc, var(--shadow-btn-hover); }
.btn-secondary:active { box-shadow: inset 0 0 0 1px var(--line), inset 0 2px 4px rgba(0, 0, 0, .08); }

/* Header: white, gains a soft shadow once you scroll; turns black over black sections. */
.bar { position: fixed; inset: 0 0 auto 0; z-index: 20; display: flex; align-items: center; gap: 32px;
       padding: 14px max(var(--m), calc((100% - var(--max)) / 2)); background: rgba(255, 255, 255, .94);
       color: var(--ink); -webkit-backdrop-filter: saturate(1.4) blur(12px); backdrop-filter: saturate(1.4) blur(12px);
       transition: background-color .35s var(--ease), color .35s var(--ease), box-shadow .35s var(--ease); }
.bar.scrolled { box-shadow: 0 1px 0 var(--line), 0 6px 20px -12px rgba(10, 10, 11, .18); }
.bar[data-on="dark"] { background: rgba(10, 10, 11, .92); color: var(--on-black); box-shadow: 0 1px 0 rgba(255, 255, 255, .06); }
.wordmark { font-weight: 800; letter-spacing: .14em; font-size: 16px; text-decoration: none; margin-right: auto; white-space: nowrap; }
.nav { display: flex; gap: 6px; }
.nav a { text-decoration: none; font-weight: 500; font-size: 15px; padding: 9px 14px; border-radius: 10px;
         transition: background-color .2s, color .2s; }
.nav a:hover { background: rgba(10, 10, 11, .06); }
.bar[data-on="dark"] .nav a:hover { background: rgba(255, 255, 255, .1); }
.bar-cta { min-height: 42px; padding: 0 18px; font-size: 15px; }
.menu { display: none; align-items: center; justify-content: center; min-height: 42px; padding: 0 16px; border-radius: 10px; cursor: pointer;
        background: transparent; color: inherit; border: 0; box-shadow: inset 0 0 0 1px currentColor; font: 600 15px var(--font); }

/* Hero */
.hero { padding-top: clamp(140px, 18vh, 200px); padding-bottom: var(--gap); }
.hero-title { font-size: var(--t-hero); font-weight: 800; line-height: .95; letter-spacing: -.045em; }
.hero-sub { margin-top: 32px; font-size: clamp(19px, 1.7vw, 24px); color: var(--ink-2); max-width: 36ch; line-height: 1.45; }
.hero-actions { margin-top: 40px; display: flex; flex-wrap: wrap; gap: 14px; }
.hero-points { margin-top: 56px; display: flex; flex-wrap: wrap; gap: 12px 32px; color: var(--muted); font-size: 15px; }
.hero-points li { display: flex; align-items: center; gap: 10px; }
.hero-points li::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--blue); flex: none; }

/* Section headings */
h2 { font-size: var(--t-xl); line-height: 1; letter-spacing: -.035em; font-weight: 800; }
.lede { font-size: var(--t-md); max-width: 44ch; color: var(--ink-2); line-height: 1.5; }

/* Services */
.services { padding-top: var(--gap); padding-bottom: var(--gap); background: var(--paper); }
.services-head { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: end; }
.picker { margin-top: 56px; background: var(--white); border-radius: 20px; padding: clamp(24px, 4vw, 48px);
          box-shadow: inset 0 0 0 1px var(--line), var(--shadow-card); display: grid; grid-template-columns: 5fr 7fr; gap: 28px 56px; }
.picker-q { font-size: var(--t-lg); line-height: 1.15; letter-spacing: -.02em; grid-column: 1; }
.chips { grid-column: 1; display: flex; flex-wrap: wrap; gap: 10px; align-content: flex-start; }
.chips button { font: 600 15px var(--font); color: var(--ink); background: var(--white); border: 0; border-radius: 999px;
                min-height: 44px; padding: 0 18px; cursor: pointer; box-shadow: inset 0 0 0 1px var(--line), 0 1px 2px rgba(10, 10, 11, .06);
                transition: transform .2s var(--ease), box-shadow .2s var(--ease), background-color .2s, color .2s; }
.chips button:hover { transform: translateY(-1px); box-shadow: inset 0 0 0 1px #d3d6dc, 0 4px 10px -4px rgba(10, 10, 11, .18); }
.chips button[aria-selected="true"] { background: var(--ink); color: var(--white); box-shadow: 0 4px 12px -4px rgba(10, 10, 11, .4); }
.ideas { grid-column: 2; grid-row: 1 / span 2; }
.ideas-label { color: var(--muted); font-size: 15px; margin-bottom: 8px; }
.ideas li { font-size: var(--t-md); padding: 14px 0 14px 32px; position: relative; line-height: 1.45; animation: idea .4s var(--ease) both; }
.ideas li:nth-child(2) { animation-delay: .06s; } .ideas li:nth-child(3) { animation-delay: .12s; }
.ideas li + li { box-shadow: inset 0 1px 0 var(--line); }
.ideas li::before { content: ""; position: absolute; left: 2px; top: 23px; width: 14px; height: 8px;
                    border-left: 2.5px solid var(--blue); border-bottom: 2.5px solid var(--blue); transform: rotate(-45deg); }
@keyframes idea { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

.svc { margin-top: 48px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; counter-reset: s; }
.svc li { counter-increment: s; background: var(--white); border-radius: 16px; padding: 26px 26px 28px; display: grid; gap: 8px; align-content: start;
          box-shadow: inset 0 0 0 1px var(--line); transition: transform .25s var(--ease), box-shadow .25s var(--ease); }
.svc li:hover { transform: translateY(-3px); box-shadow: inset 0 0 0 1px #d3d6dc, var(--shadow-card); }
.svc li::before { content: counter(s, decimal-leading-zero); color: var(--blue); font-weight: 700; font-size: 14px; font-variant-numeric: tabular-nums; }
.svc b { font-size: clamp(20px, 1.6vw, 23px); line-height: 1.2; letter-spacing: -.015em; }
.svc span { color: var(--muted); font-size: 16px; }

/* Work: Aura Bot Access */
.work { padding-top: var(--gap); padding-bottom: var(--gap); }
.work-top { display: grid; grid-template-columns: 7fr 5fr; gap: 64px; align-items: center; }
.work .lede { margin-top: 24px; }
.facts { margin-top: 32px; display: grid; gap: 14px; max-width: 52ch; }
.facts li { padding-left: 32px; position: relative; color: var(--ink-2); }
.facts li::before { content: ""; position: absolute; left: 2px; top: 8px; width: 14px; height: 8px;
                    border-left: 2.5px solid var(--blue); border-bottom: 2.5px solid var(--blue); transform: rotate(-45deg); }

.alert { justify-self: end; width: min(100%, 400px); }
.tg { background: var(--white); color: var(--ink); padding: 18px; border-radius: 20px; font-size: 15px;
      box-shadow: inset 0 0 0 1px var(--line), 0 2px 4px rgba(10, 10, 11, .04), 0 24px 48px -20px rgba(10, 10, 11, .25); }
.tg-head { display: flex; align-items: center; gap: 12px; padding-bottom: 14px; }
.tg-head b { display: block; font-size: 15px; }
.tg-head small { color: var(--muted); font-size: 13px; }
.tg-avatar { width: 40px; height: 40px; border-radius: 50%; background: var(--ink); color: var(--white); display: grid; place-items: center; font-weight: 800; }
.tg-msg { background: var(--paper); border-radius: 16px 16px 16px 4px; padding: 14px 16px 26px; position: relative; display: grid; gap: 4px; }
.tg-title { font-weight: 700; }
.tg-grade { color: var(--blue-dark); font-weight: 600; }
.tg-link { color: var(--blue); }
.tg-time { position: absolute; right: 12px; bottom: 6px; font-size: 13px; color: var(--muted); }
.tg-keys { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 8px; }
.tg-keys span { background: var(--white); border-radius: 10px; text-align: center; padding: 10px; font-weight: 600; font-size: 14px;
                box-shadow: inset 0 0 0 1px var(--line), 0 1px 2px rgba(10, 10, 11, .06); }
.alert figcaption { margin-top: 14px; color: var(--muted); font-size: 14px; text-align: center; }

.plans { margin-top: 112px; }
.plans-h { font-size: clamp(32px, 3.2vw, 44px); line-height: 1.05; letter-spacing: -.03em; margin-bottom: 40px; }
.pt { border-radius: 20px; overflow: hidden; box-shadow: inset 0 0 0 1px var(--line); background: var(--white); }
.pr { display: grid; grid-template-columns: 4fr 3fr 3fr; min-height: 62px; align-items: stretch; }
.pr + .pr { box-shadow: inset 0 1px 0 var(--line); }
.pr > span { padding: 14px 20px; font-size: 16px; display: flex; align-items: center; }
.pr > [role=rowheader] { font-weight: 600; }
.ph { background: var(--paper); }
.ph > span { font-weight: 700; font-size: 17px; }
.pr s { color: var(--muted); font-weight: 500; margin-right: 8px; text-decoration-thickness: 1.5px; }
.sale { display: inline-block; vertical-align: middle; margin-left: 10px; background: var(--blue); color: var(--white); font-size: 15px;
        font-weight: 700; letter-spacing: 0; padding: 6px 12px; border-radius: 999px; transform: translateY(-4px); }
.pr .feat { background: var(--blue-soft); color: var(--ink); font-weight: 600; }
.ph .feat { background: var(--blue); color: var(--white); }

.join { margin-top: 56px; display: grid; grid-template-columns: 7fr 5fr; gap: 24px 64px; align-items: center; }
.join-line { font-size: var(--t-lg); line-height: 1.2; letter-spacing: -.02em; max-width: 28ch; font-weight: 600; }
.join-actions { display: flex; gap: 12px; flex-wrap: wrap; justify-content: flex-end; }
.join-actions .btn { min-width: 108px; }
.fine { grid-column: 1 / -1; color: var(--muted); font-size: 14px; max-width: 92ch; }
.fine a { color: var(--ink); font-weight: 600; text-underline-offset: 3px; }

/* Process: black */
.process { padding-top: var(--gap); padding-bottom: var(--gap); background: var(--black); color: var(--on-black); }
.stairs { margin-top: 64px; display: grid; grid-template-columns: repeat(12, 1fr); row-gap: 52px; }
.stairs li { grid-column: var(--c) / span 8; }
.stairs li:nth-child(1) { --c: 1; } .stairs li:nth-child(2) { --c: 2; } .stairs li:nth-child(3) { --c: 3; }
.stairs li:nth-child(4) { --c: 4; } .stairs li:nth-child(5) { --c: 5; }
.step { font-size: clamp(32px, 4.2vw, 64px); line-height: 1.02; letter-spacing: -.035em; font-weight: 800; }
.step + p { margin-top: 12px; color: var(--on-black-muted); max-width: 42ch; font-size: 17px; }
.step.accent { color: #6d9bff; }

/* Contact */
.contact { padding-top: var(--gap); padding-bottom: var(--gap); }
.contact .lede { margin-top: 20px; }
.contact-cards { margin-top: 44px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.ccard { display: grid; gap: 6px; padding: 26px 28px; border-radius: 18px; text-decoration: none; background: var(--white); min-width: 0;
         box-shadow: inset 0 0 0 1px var(--line), var(--shadow-btn); transition: transform .22s var(--ease), box-shadow .22s var(--ease); }
.ccard:hover { transform: translateY(-3px); box-shadow: inset 0 0 0 1px #d3d6dc, var(--shadow-btn-hover); }
.ccard:active { transform: translateY(0); }
.ccard-k { font-size: 14px; font-weight: 700; color: var(--blue); }
.ccard-v { font-size: clamp(19px, 1.7vw, 24px); font-weight: 700; letter-spacing: -.02em; overflow-wrap: anywhere; }
.contact-note { margin-top: 28px; color: var(--muted); font-size: 15px; }

/* Footer: black */
.foot { background: var(--black); color: var(--on-black); padding-top: clamp(80px, 9vw, 128px); padding-bottom: 40px; }
.foot-top { display: grid; grid-template-columns: 7fr 5fr; gap: 40px; padding-bottom: 72px; }
.invite { font-size: clamp(40px, 5vw, 72px); font-weight: 800; line-height: 1; letter-spacing: -.04em; margin-bottom: 32px; }
.foot-links { display: grid; gap: 12px; align-content: start; justify-self: end; }
.foot-links a { text-decoration: none; color: var(--on-black-muted); transition: color .2s; }
.foot-links a:hover { color: var(--white); }
.legal { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; flex-wrap: wrap; padding-top: 28px;
         box-shadow: inset 0 1px 0 rgba(255, 255, 255, .1); font-size: 14px; color: var(--on-black-muted); }
.foot-name { font-weight: 800; letter-spacing: .14em; color: var(--on-black); }

/* Motion: content is visible without script; the script only adds the entrance. */
.anim .reveal { opacity: 0; transform: translateY(20px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.anim .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* Tablet */
@media (max-width: 1024px) {
  .svc { grid-template-columns: repeat(2, 1fr); }
  .work-top, .join, .foot-top { grid-template-columns: 1fr; }
  .alert { justify-self: start; }
  .join-actions { justify-content: flex-start; }
  .foot-links { justify-self: start; }
  .stairs li { grid-column: var(--c) / -1; }
  .contact-cards { grid-template-columns: 1fr; max-width: 560px; }
}

/* Phone */
@media (max-width: 760px) {
  body { font-size: 16px; }
  .bar { gap: 10px; padding-top: 12px; padding-bottom: 12px; }
  .menu { display: inline-flex; }
  .nav { display: none; position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; gap: 2px;
         background: var(--white); color: var(--ink); padding: 8px var(--m) 20px; box-shadow: 0 16px 30px -16px rgba(10, 10, 11, .3); }
  .bar[data-on="dark"] .nav { background: var(--black); color: var(--on-black); }
  .bar.open .nav { display: flex; }
  .nav a { font-size: 19px; padding: 14px 12px; }
  .hero { padding-top: 128px; }
  .hero-title { font-size: clamp(42px, 12.6vw, 72px); }
  .hero-actions .btn { flex: 1 1 100%; }
  .hero-points { flex-direction: column; margin-top: 40px; }
  .services-head { grid-template-columns: 1fr; gap: 16px; }
  .picker { grid-template-columns: 1fr; margin-top: 40px; }
  .ideas { grid-column: 1; grid-row: auto; }
  .svc { grid-template-columns: 1fr; }
  .plans { margin-top: 72px; }
  .plans-h { margin-bottom: 20px; }
  .ph { display: none; }
  .pr { grid-template-columns: 1fr; padding: 10px 0; }
  .pr > span { padding: 6px 18px; font-size: 16px; }
  .pr > [role=rowheader] { font-size: 18px; padding-top: 10px; padding-bottom: 8px; }
  .pr [role=cell]::before { font-weight: 700; margin-right: 8px; }
  .pr [role=cell]:nth-child(2)::before { content: "Premium:"; }
  .pr [role=cell]:nth-child(3)::before { content: "Aura Private:"; }
  .pr .feat { margin: 4px 10px; border-radius: 10px; padding: 10px 12px; }
  .join-actions .btn { flex: 1 1 0; min-width: 0; }
  .stairs { display: block; margin-top: 48px; }
  .stairs li { margin: 0 0 40px calc((var(--c) - 1) * 4vw); }
  .step { font-size: clamp(28px, 8.4vw, 40px); }
  .invite { font-size: clamp(36px, 11vw, 56px); }
}
@media (max-width: 400px) {
  .bar-cta { display: none; }
}

/* Text pages: terms, privacy, 404 */
.doc .bar { position: sticky; }
.doc-main { padding: 72px var(--m) 96px; max-width: calc(70ch + 2 * var(--m)); margin: 0 auto; }
.doc-main h1 { font-size: var(--t-xl); line-height: 1; letter-spacing: -.035em; font-weight: 800; }
.doc-main h2 { font-size: var(--t-lg); margin: 56px 0 16px; letter-spacing: -.02em; line-height: 1.15; }
.doc-main p { margin-top: 16px; max-width: 70ch; color: var(--ink-2); }
.doc-main a:not(.btn) { color: var(--blue); }
.doc-main .doc-date { color: var(--muted); }
.doc-lede { font-size: var(--t-md); }
.doc-main .btn { margin-top: 24px; }
.doc-foot { padding: 32px var(--m) 48px; background: var(--paper); color: var(--muted); font-size: 14px; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.doc-foot a { color: var(--ink); }