/* Shared styles for individual interaction demos — Shipsy design language */
:root{
  --blue-50:#EEF3FF;--blue-100:#DCE5FF;--blue-200:#B9CBFF;--blue-300:#8AA8FF;--blue-400:#5A7FFF;
  --blue-500:#2F5BFF;--blue-600:#1E45E0;--blue-700:#1838BE;--blue-800:#142B8E;
  --navy:#0A1734;--navy-2:#0F2350;
  --paper:#FAF8F4;--paper-2:#F4F0E8;--white:#fff;--hairline:#E8E2D6;
  --ink:#0B1424;--ink-60:rgba(11,20,36,.6);--ink-45:rgba(11,20,36,.45);
  --on-dark-70:rgba(255,255,255,.72);--on-dark-45:rgba(255,255,255,.46);
  --spark:#FF6A3D;--success:#15A35B;
  --ease-out:cubic-bezier(.22,1,.36,1);--ease-inout:cubic-bezier(.65,0,.35,1);--ease-spring:cubic-bezier(.34,1.56,.64,1);
  --r-md:12px;--r-lg:20px;--r-xl:28px;
  --sh-2:0 6px 20px rgba(10,23,52,.07);--sh-3:0 18px 44px rgba(10,23,52,.10);
  --font:"Satoshi","Inter",system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-font-smoothing:antialiased;scroll-behavior:smooth}
body{font-family:var(--font);background:var(--paper);color:var(--ink);letter-spacing:-0.01em;min-height:100vh;display:flex;flex-direction:column}
a{color:inherit;text-decoration:none}svg{display:block}
.num{font-variant-numeric:tabular-nums}

.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 28px;border-bottom:1px solid var(--hairline);position:sticky;top:0;background:rgba(250,248,244,.82);backdrop-filter:saturate(180%) blur(14px);-webkit-backdrop-filter:saturate(180%) blur(14px);z-index:20}
.topbar .back{font-size:14px;color:var(--ink-60);display:inline-flex;gap:8px;align-items:center;transition:color .25s var(--ease-out)}
.topbar .back:hover{color:var(--ink)}
.tag{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.14em;color:var(--blue-600);border:1px solid var(--blue-200);padding:5px 11px;border-radius:999px}

.wrap{flex:1;width:100%;max-width:1080px;margin:0 auto;padding:54px 28px 90px}
.eyebrow{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.16em;color:var(--blue-600)}
h1{font-size:clamp(34px,5vw,52px);font-weight:700;letter-spacing:-0.03em;line-height:1.05;margin:14px 0}
.lead{font-size:19px;color:var(--ink-60);max-width:62ch;line-height:1.55}

.stagebox{margin:38px 0 18px;border-radius:var(--r-xl);border:1px solid var(--hairline);background:var(--white);box-shadow:var(--sh-2);min-height:440px;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}
.stagebox.dark{background:var(--navy);border-color:transparent}

.controls{display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--font);font-weight:500;font-size:15px;padding:12px 20px;border-radius:var(--r-md);background:var(--blue-500);color:#fff;border:1px solid transparent;cursor:pointer;transition:transform .25s var(--ease-out),background .25s var(--ease-out),box-shadow .25s var(--ease-out);box-shadow:0 1px 2px rgba(10,23,52,.12)}
.btn:hover{background:var(--blue-600);transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn svg{width:16px;height:16px}
.hint{font-size:13px;color:var(--ink-45)}
.dotlive{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--success);margin-right:7px;vertical-align:middle;animation:blink 1.5s var(--ease-inout) infinite}
@keyframes blink{0%,100%{opacity:.3}50%{opacity:1}}

.how{margin-top:36px;border-top:1px solid var(--hairline);padding-top:26px;display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.how .h{font-weight:600;margin-bottom:6px}.how p{font-size:14px;color:var(--ink-60);line-height:1.5}
.how .k{font-family:var(--font);font-size:12px;background:var(--paper-2);border:1px solid var(--hairline);border-radius:6px;padding:2px 7px;color:var(--ink)}
@media(max-width:760px){.how{grid-template-columns:1fr}}

.grain::after{content:"";position:absolute;inset:0;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='150' height='150'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.72' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");background-size:150px;opacity:.4;mix-blend-mode:soft-light;pointer-events:none;z-index:1}