/* ============================================================
   AUM AI — Home / landing styles
   ============================================================ */

.hero-swap { animation: fadeIn .5s var(--ease); }

/* Concept switcher */
.concept-switch { position: fixed; right: 22px; bottom: 22px; z-index: 90; display: flex; flex-direction: column; gap: 8px; background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 12px; box-shadow: var(--shadow-lg); }
.cs-label { font-family: var(--font-mono); font-size: 10.5px; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-3); }
.cs-opts { display: flex; gap: 6px; }
.cs-opt { display: flex; flex-direction: column; align-items: center; gap: 2px; width: 64px; padding: 8px 4px; border: 1px solid var(--border); border-radius: 11px; background: var(--surface-2); color: var(--ink-3); transition: all .2s var(--ease); }
.cs-opt b { font-family: var(--font-display); font-size: 15px; color: var(--ink-2); }
.cs-opt span { font-size: 11px; }
.cs-opt.on { background: var(--solid-bg); border-color: var(--solid-bg); }
.cs-opt.on b, .cs-opt.on span { color: var(--solid-ink); }
@media (max-width: 720px){ .concept-switch { right: 12px; bottom: 12px; padding: 9px; } .cs-opt { width: 52px; } }

/* Eyebrow */
.eyebrow-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--pos); box-shadow: 0 0 0 4px var(--pos-bg); animation: pulse 2.4s var(--ease) infinite; }
@keyframes pulse { 0%,100%{ box-shadow: 0 0 0 3px var(--pos-bg); } 50%{ box-shadow: 0 0 0 7px transparent; } }

/* Shared hero bits */
.hero { position: relative; overflow: hidden; }
.hero-title { font-size: clamp(40px, 7vw, 84px); line-height: 0.98; letter-spacing: -0.035em; font-weight: 700; }
.hero-title.big { font-size: clamp(36px, 5.4vw, 68px); }
.grad-text { background: linear-gradient(105deg, var(--brand-blue) 0%, var(--brand-yellow) 110%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-sub { font-size: clamp(17px, 1.5vw, 20px); line-height: 1.55; color: var(--ink-2); max-width: 620px; margin: 0; }
.hero-sub.center { margin: 0 auto; text-align: center; }
.hero-cta-row { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.hero-cta-row.center { justify-content: center; }

/* Concept A */
.hero-a-inner { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 26px; padding: 84px 0 40px; }
.hero-a .hero-title { max-width: 16ch; }
.hero-a-floats { width: 100%; max-width: 560px; margin-top: 18px; }

/* Concept B */
.hero-b-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center; padding: 76px 0 96px; }
.hero-b-left { display: flex; flex-direction: column; gap: 22px; align-items: flex-start; }
.hero-b-stats { display: flex; gap: 30px; margin-top: 6px; }
.b-stat { display: flex; flex-direction: column; }
.b-stat-n { font-size: 34px; font-weight: 700; line-height: 1; color: var(--ink); }
.b-stat-l { font-size: 13.5px; color: var(--ink-3); margin-top: 4px; }
.hero-b-right { position: relative; }
.hero-b-stack { position: relative; }
.float-chip { position: absolute; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 9px 13px; font-size: 13.5px; font-weight: 600; box-shadow: var(--shadow-lg); display: flex; align-items: center; gap: 7px; }
.chip-1 { top: -18px; left: -26px; color: var(--accent); animation: floaty 5s ease-in-out infinite; }
.chip-2 { bottom: 28px; right: -22px; animation: floaty 5s ease-in-out infinite 1.2s; }
.float-chip .up { color: var(--pos); }
@keyframes floaty { 0%,100%{ transform: translateY(0);} 50%{ transform: translateY(-9px);} }

/* Concept C */
.hero-c { padding: 72px 0 0; }
.hero-c-bg { position: absolute; inset: 0; overflow: hidden; pointer-events: none; display: flex; flex-direction: column; justify-content: center; gap: 0; opacity: .5; }
.hero-c-word { font-family: var(--font-display); font-weight: 700; font-size: clamp(60px, 13vw, 180px); line-height: .92; color: transparent; -webkit-text-stroke: 1px var(--border-strong); white-space: nowrap; transform: translateX(calc(var(--i) * -40px)); animation: drift 24s linear infinite; animation-delay: calc(var(--i) * -3s); }
@keyframes drift { from { transform: translateX(0);} to { transform: translateX(-120px);} }
.hero-c-inner { position: relative; display: flex; flex-direction: column; align-items: center; text-align: center; gap: 24px; padding-top: 28px; }
.hero-c-title { display: flex; flex-direction: column; align-items: center; font-size: clamp(44px, 8.5vw, 110px); line-height: .96; letter-spacing: -0.04em; }
.hero-c-title .line { display: block; }
.hero-c-title .accent { display: inline-flex; align-items: center; gap: .18em; }
.hero-c-mark { width: clamp(40px, 7vw, 86px); height: auto; animation: floaty 4s ease-in-out infinite; }

/* Ticker */
.ticker { position: relative; margin-top: 30px; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); background: var(--surface-2); overflow: hidden; -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.ticker-track { display: flex; gap: 0; width: max-content; animation: marquee 38s linear infinite; }
.ticker:hover .ticker-track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-50%);} }
.ticker-item { display: flex; align-items: center; gap: 10px; padding: 13px 26px; border-right: 1px solid var(--border); font-size: 14px; }
.ticker-sym { font-weight: 700; color: var(--ink); }
.ticker-price { color: var(--ink-2); }
.ticker-chg { font-weight: 600; }
.ticker-chg.up { color: var(--pos); }
.ticker-chg.down { color: var(--neg); }

/* Glass preview card */
.glass-card { width: 100%; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 22px; box-shadow: var(--shadow-lg); backdrop-filter: blur(10px); }
.glass-head { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 6px; }
.glass-label { font-size: 12.5px; color: var(--ink-3); font-weight: 600; }
.glass-value { font-size: 30px; font-weight: 700; color: var(--ink); margin-top: 3px; }
.glass-delta { font-weight: 700; font-size: 15px; padding: 5px 10px; border-radius: 9px; }
.glass-delta.up { color: var(--pos); background: var(--pos-bg); }
.glass-delta.down { color: var(--neg); background: var(--neg-bg); }
.glass-foot { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--border); }
.glass-alloc { display: flex; align-items: center; gap: 7px; font-size: 13px; color: var(--ink-2); font-weight: 500; }
.glass-alloc .mono { color: var(--ink-3); font-size: 12.5px; }
.glass-alloc-dot { width: 9px; height: 9px; border-radius: 3px; }

/* Sections */
.section { padding: 92px 0; }
.section-head { display: flex; flex-direction: column; gap: 14px; margin-bottom: 52px; }
.section-head.center { align-items: center; text-align: center; }
.section-title { font-size: clamp(30px, 4vw, 50px); letter-spacing: -0.03em; }
.section-lead { font-size: clamp(16px, 1.4vw, 19px); color: var(--ink-2); max-width: 620px; line-height: 1.55; }
.section-head.center .section-lead { margin: 0 auto; }

/* Features */
.feat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feat-card { display: flex; flex-direction: column; align-items: flex-start; gap: 14px; text-align: left; padding: 30px 28px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow-sm); transition: all .3s var(--ease); position: relative; overflow: hidden; }
.feat-card::after { content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1px; background: linear-gradient(135deg, var(--brand-blue), var(--brand-yellow)); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; opacity: 0; transition: opacity .3s; }
.feat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.feat-card:hover::after { opacity: 1; }
.feat-ic { width: 48px; height: 48px; border-radius: 13px; display: grid; place-items: center; background: var(--surface-inset); color: var(--ink); transition: all .3s var(--ease); }
.feat-card:hover .feat-ic { background: var(--brand-ink); color: #fff; transform: rotate(-6deg) scale(1.05); }
[data-theme="dark"] .feat-card:hover .feat-ic { background: var(--brand-blue); }
.feat-title { font-size: 21px; }
.feat-desc { font-size: 15px; color: var(--ink-2); line-height: 1.55; margin: 0; }
.feat-link { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 600; color: var(--accent); margin-top: auto; opacity: 0; transform: translateX(-6px); transition: all .3s var(--ease); }
.feat-card:hover .feat-link { opacity: 1; transform: none; }

/* Why */
.why-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 56px; max-width: 980px; margin: 0 auto; }
.why-item { display: flex; gap: 18px; align-items: flex-start; padding: 22px; border-radius: var(--radius); transition: background .25s; }
.why-item:hover { background: var(--surface); box-shadow: var(--shadow-sm); }
.why-ic { width: 46px; height: 46px; flex: none; border-radius: 12px; display: grid; place-items: center; background: var(--surface-inset); color: var(--ink); }
.why-item:hover .why-ic { background: color-mix(in oklch, var(--brand-yellow) 22%, var(--surface-inset)); }
.why-title { font-size: 19px; margin-bottom: 5px; }
.why-desc { font-size: 14.5px; color: var(--ink-2); line-height: 1.5; margin: 0; }

/* Interested */
.interested-card { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 20px; max-width: 720px; margin: 0 auto; padding: 64px 40px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow-md); }
.interested-fine { font-size: 13.5px; color: var(--ink-3); margin: 0; }

@media (max-width: 900px){
  .hero-b-grid { grid-template-columns: 1fr; gap: 40px; }
  .feat-grid { grid-template-columns: 1fr 1fr; }
  .why-grid { grid-template-columns: 1fr; gap: 8px; }
}
@media (max-width: 640px){
  .feat-grid { grid-template-columns: 1fr; }
  .section { padding: 64px 0; }
  .hero-b-stats { gap: 20px; }
  .float-chip { display: none; }
}