/* AuraPost public landing page. The product UI is black and white; colour comes only
   from the photos, plus one green for "Published". */
:root {
  --paper: #f3f4f0; --card: #ffffff; --ink: #101216; --muted: #5d626a;
  --line: #d9dbd5; --live: #17a862; --live-bg: #e3f6ec;
  --display: "Bricolage Grotesque", system-ui, sans-serif;
  --body: "Instrument Sans", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0e1013; --card: #171a1f; --ink: #f2f3ef; --muted: #9da2a9;
    --line: #2a2e35; --live: #3ad187; --live-bg: #12301f;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink);
  font: 17px/1.6 var(--body); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
a:focus-visible, .btn:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }
h1, h2, h3 { font-family: var(--display); margin: 0; letter-spacing: -0.02em; }
h2 { font-size: clamp(30px, 4.4vw, 50px); font-weight: 800; line-height: 1.05; }
h3 { font-size: 20px; font-weight: 500; }
p { margin: 0; }
.mono { font-family: var(--mono); font-size: 12.5px; letter-spacing: 0.02em; color: var(--muted); }
.pi { width: 18px; height: 18px; flex: none; }

/* nav */
.nav { position: sticky; top: 0; z-index: 10; display: flex; align-items: center;
  justify-content: space-between; padding: 14px clamp(16px, 4vw, 48px);
  background: color-mix(in srgb, var(--paper) 86%, transparent);
  backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.nav-brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none;
  font: 800 20px var(--display); letter-spacing: -0.02em; }
.nav nav { display: flex; align-items: center; gap: 22px; font-size: 15px; }
.nav nav a { text-decoration: none; color: var(--muted); }
.nav nav a:hover { color: var(--ink); }
.nav .nav-login { color: var(--ink); border: 1px solid var(--ink); padding: 7px 16px;
  border-radius: 999px; }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; text-decoration: none;
  font: 600 16px var(--body); padding: 14px 26px; border-radius: 999px;
  transition: transform .2s ease, background .2s ease; }
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--ink); color: var(--paper); }
.btn-ghost { color: var(--ink); border: 1px solid var(--line); }
.btn-ghost:hover { border-color: var(--ink); }
.btn-invert { background: var(--paper); color: var(--ink); }

main > section { padding: clamp(64px, 9vw, 120px) clamp(16px, 4vw, 48px); max-width: 1240px;
  margin: 0 auto; }
.section-head { max-width: 640px; margin-bottom: 44px; }
.section-head p { color: var(--muted); margin-top: 14px; font-size: 18px; }

/* hero */
.hero { display: grid; grid-template-columns: 1.05fr 1fr; gap: 40px; align-items: center;
  padding-top: clamp(40px, 6vw, 80px) !important; }
.eyebrow { font: 500 13px var(--mono); text-transform: uppercase; letter-spacing: .08em;
  color: var(--muted); margin-bottom: 22px; }
.hero h1 { font-size: clamp(50px, 7.6vw, 104px); font-weight: 800; line-height: .94;
  letter-spacing: -0.045em; }
.hero h1 .soft { color: var(--muted); font-weight: 500; }
.lead { font-size: 19px; color: var(--muted); max-width: 470px; margin: 28px 0 34px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-copy > * { animation: rise .8s cubic-bezier(.2,.7,.2,1) both; }
.hero-copy > :nth-child(2) { animation-delay: .08s; }
.hero-copy > :nth-child(3) { animation-delay: .16s; }
.hero-copy > :nth-child(4) { animation-delay: .24s; }

.stage { position: relative; height: 600px; display: grid; place-items: center; }
.aura { position: absolute; inset: 0; display: grid; place-items: center; pointer-events: none; }
.aura i { position: absolute; width: 360px; height: 360px; border-radius: 50%;
  border: 1.5px solid var(--ink); opacity: 0; animation: ripple 4.8s ease-out infinite; }
.aura i:nth-child(2) { animation-delay: 1.6s; }
.aura i:nth-child(3) { animation-delay: 3.2s; }
.post { position: relative; z-index: 2; width: 290px; background: var(--card); border-radius: 22px;
  padding: 10px; border: 1px solid var(--line);
  box-shadow: 0 30px 60px -30px rgba(16,18,22,.45);
  animation: drop 1s cubic-bezier(.2,.7,.2,1) .2s both; }
.post img { border-radius: 14px; aspect-ratio: 4/5; object-fit: cover; width: 100%; }
.post-meta { padding: 12px 6px 4px; }
.post-meta p { font-size: 15px; line-height: 1.4; margin-bottom: 6px; }

.orbit { list-style: none; margin: 0; padding: 0; position: absolute; inset: 0; z-index: 3; }
.orbit li { position: absolute; display: flex; align-items: center; gap: 8px; padding: 9px 14px;
  border-radius: 999px; background: var(--card); border: 1px solid var(--line); font-size: 14px;
  font-weight: 500; white-space: nowrap; box-shadow: 0 10px 24px -14px rgba(16,18,22,.35);
  animation: chip-in .6s cubic-bezier(.2,.7,.2,1) both; }
.orbit li b { font: 500 11.5px var(--mono); color: var(--live); background: var(--live-bg);
  border-radius: 999px; padding: 0; max-width: 0; overflow: hidden; opacity: 0;
  animation: lit .5s ease both; }
.o1 { top: 8%;  left: 2%; }   .orbit .o1 { animation-delay: 1.1s; }
.o2 { top: 40%; left: -4%; }  .orbit .o2 { animation-delay: 1.35s; }
.o3 { top: 12%; right: 0; }   .orbit .o3 { animation-delay: 1.6s; }
.o4 { top: 58%; right: -2%; } .orbit .o4 { animation-delay: 1.85s; }
.o5 { bottom: 6%; left: 14%; } .orbit .o5 { animation-delay: 2.1s; }
.orbit .o1 b { animation-delay: 1.5s; } .orbit .o2 b { animation-delay: 1.75s; } .orbit .o3 b { animation-delay: 2s; }
.orbit .o4 b { animation-delay: 2.25s; } .orbit .o5 b { animation-delay: 2.5s; }

@keyframes rise { from { opacity: 0; transform: translateY(18px); } }
@keyframes drop { from { opacity: 0; transform: translateY(30px) scale(.96); } }
@keyframes ripple { 0% { transform: scale(.75); opacity: .5; } 100% { transform: scale(1.7); opacity: 0; } }
@keyframes chip-in { from { opacity: 0; transform: scale(.6); } }
@keyframes lit { to { max-width: 90px; opacity: 1; padding: 2px 8px; } }

/* week strip */
.strip { display: grid; grid-template-columns: repeat(5, minmax(200px, 1fr)); gap: 16px;
  overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 8px; }
.slot { background: var(--card); border: 1px solid var(--line); border-radius: 18px; overflow: hidden;
  scroll-snap-align: start; transition: transform .3s ease; }
.slot:hover { transform: translateY(-4px); }
.slot img { aspect-ratio: 1; object-fit: cover; width: 100%; }
.slot-body { padding: 14px 16px 16px; display: grid; gap: 8px; }
.slot-body p { font-size: 15px; line-height: 1.4; min-height: 42px; }
.slot-foot { display: flex; align-items: center; justify-content: space-between; }
.icons { display: inline-flex; gap: 8px; color: var(--muted); }
.status { font: 500 11.5px var(--mono); padding: 3px 9px; border-radius: 999px; }
.status.done { color: var(--live); background: var(--live-bg); }
.status.next { color: var(--muted); border: 1px solid var(--line); }

/* steps */
.steps { list-style: none; margin: 0; padding: 0; display: grid;
  grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1px solid var(--ink); }
.steps li { padding: 28px 28px 8px 0; }
.steps li + li { padding-left: 28px; border-left: 1px solid var(--line); }
.step-n { display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 50%;
  border: 1px solid var(--ink); color: var(--ink); margin-bottom: 22px; }
.steps h3 { margin-bottom: 10px; font-size: 24px; }
.steps p { color: var(--muted); }

/* brands */
.brand-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.brand { background: var(--card); border: 1px solid var(--line); border-radius: 22px; padding: 24px; }
.brand-head { display: flex; align-items: center; gap: 14px; padding-bottom: 18px;
  border-bottom: 1px solid var(--line); }
.brand-head img { width: 52px; height: 52px; border-radius: 50%; object-fit: cover; }
.brand-head > div { flex: 1; }
.check { font: 500 12px var(--mono); padding: 5px 11px; border-radius: 999px;
  border: 1px solid var(--line); color: var(--muted); }
.check.on { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.brand ul { list-style: none; margin: 0; padding: 0; }
.brand li { display: flex; align-items: center; gap: 12px; padding: 12px 0;
  border-bottom: 1px dashed var(--line); font-size: 15px; }
.brand li:last-child { border-bottom: 0; }

/* assistant */
.ask { display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; align-items: center; }
.ask-copy p { color: var(--muted); margin-top: 16px; font-size: 18px; max-width: 440px; }
.chat { display: grid; gap: 14px; }
.bubble { border-radius: 20px; padding: 16px 18px; max-width: 470px; font-size: 16px; }
.bubble.me { justify-self: end; background: var(--ink); color: var(--paper);
  display: grid; grid-template-columns: 64px 1fr; gap: 14px; align-items: start;
  border-bottom-right-radius: 6px; }
.bubble.me img { width: 64px; height: 96px; object-fit: cover; border-radius: 10px; }
.typed { min-height: 4.8em; }
.bubble.bot { background: var(--card); border: 1px solid var(--line); border-bottom-left-radius: 6px; }
.bubble.bot ul { list-style: none; padding: 0; margin: 10px 0 0; display: grid; gap: 8px;
  font-size: 15px; color: var(--muted); }
.bubble.bot li { display: flex; align-items: center; gap: 10px; }
.chat.reveal .bot { opacity: 0; transform: translateY(12px); transition: all .5s ease 2.9s; }
.chat.reveal.in .bot { opacity: 1; transform: none; }

/* platforms */
.plat-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.plat { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 22px; }
.plat .pi { width: 26px; height: 26px; margin-bottom: 26px; }
.plat h3 { margin-bottom: 8px; }
.plat p { color: var(--muted); font-size: 15px; }

/* trust */
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px;
  border-top: 1px solid var(--line); padding-top: 28px; }
.trust-grid h3 { font-size: 18px; margin-bottom: 8px; }
.trust-grid p { color: var(--muted); font-size: 15px; }

/* final call to action */
main > section.cta { margin: 0 clamp(16px, 4vw, 48px) 80px; max-width: none;
  background: var(--ink); color: var(--paper); border-radius: 32px; text-align: center;
  display: grid; justify-items: center; gap: 18px; }
.cta p { color: color-mix(in srgb, var(--paper) 70%, transparent); max-width: 460px; }
.cta .btn { margin-top: 8px; }

.foot { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px;
  padding: 28px clamp(16px, 4vw, 48px) 40px; border-top: 1px solid var(--line);
  color: var(--muted); font-size: 14px; }
.foot nav { display: flex; gap: 20px; }
.foot a { color: var(--muted); }

/* scroll reveal */
.reveal { opacity: 0; transform: translateY(24px);
  transition: opacity .7s ease, transform .7s cubic-bezier(.2,.7,.2,1); }
.reveal.in { opacity: 1; transform: none; }
.strip .reveal:nth-child(2), .steps .reveal:nth-child(2), .plat-grid .reveal:nth-child(2) { transition-delay: .08s; }
.strip .reveal:nth-child(3), .steps .reveal:nth-child(3), .plat-grid .reveal:nth-child(3) { transition-delay: .16s; }
.strip .reveal:nth-child(4), .plat-grid .reveal:nth-child(4) { transition-delay: .24s; }
.strip .reveal:nth-child(5), .plat-grid .reveal:nth-child(5) { transition-delay: .32s; }

/* responsive */
@media (max-width: 1000px) {
  .hero, .ask { grid-template-columns: 1fr; }
  .stage { height: 560px; }
  .plat-grid { grid-template-columns: repeat(2, 1fr); }
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 680px) {
  body { font-size: 16px; }
  .nav nav a:not(.nav-login) { display: none; }
  .stage { height: 500px; }
  .post { width: 230px; }
  .aura i { width: 270px; height: 270px; }
  .orbit li { padding: 7px 11px; font-size: 13px; }
  .o2 { left: 0; } .o4 { right: 0; } .o5 { left: 4%; }
  .strip { grid-template-columns: repeat(5, 74%); }
  .steps { grid-template-columns: 1fr; }
  .steps li + li { padding-left: 0; border-left: 0; border-top: 1px solid var(--line); }
  .brand-grid, .plat-grid, .trust-grid { grid-template-columns: 1fr; }
  .bubble.me { grid-template-columns: 52px 1fr; }
  .bubble.me img { width: 52px; height: 78px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-delay: 0s !important;
    transition: none !important; }
  .aura { display: none; }
}