/* Shared chrome for every rootcause.studio page: nav, download buttons, phone frame, mobile dock. */
:root{--rc-green:#1a7f45;--rc-deep:#0f5a30;--rc-tint:#e2f4e8;--rc-mint:#7dc79a;--rc-ink:#0b0b0c;--rc-ease:cubic-bezier(.22,1,.36,1)}
html{background:#fff;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body.clarity{overflow-x:clip}

/* nav */
.rc-nav{position:fixed;inset:0 0 auto;z-index:50;height:72px;display:flex;align-items:center;gap:20px;padding:0 clamp(16px,3.4vw,44px);transition:background .35s,color .35s,box-shadow .35s;color:var(--rc-ink)}
.rc-nav[data-theme=light]{background:rgba(255,255,255,.82);backdrop-filter:saturate(1.6) blur(16px);-webkit-backdrop-filter:saturate(1.6) blur(16px);box-shadow:0 1px 0 rgba(11,11,12,.06)}
.rc-nav[data-theme=dark]{background:rgba(0,0,0,.55);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);color:#fff}
.rc-nav[data-theme=clear]{background:transparent}
.rc-logo{display:flex;align-items:center;gap:10px;font-weight:760;font-size:19px;letter-spacing:-.03em;color:inherit;text-decoration:none}
.rc-logo img{width:32px;height:32px;border-radius:9px}
.rc-links{display:flex;gap:26px;margin-left:auto;font-size:15px;font-weight:560}
.rc-links a{color:inherit;text-decoration:none;opacity:.78;transition:opacity .2s}
.rc-links a:hover,.rc-links a[aria-current]{opacity:1}
.rc-btn{--bg:var(--rc-ink);--fg:#fff;display:inline-flex;align-items:center;justify-content:center;gap:10px;height:48px;padding:0 22px;border-radius:999px;background:var(--bg);color:var(--fg);font-weight:650;font-size:16px;letter-spacing:-.01em;text-decoration:none;white-space:nowrap;box-shadow:0 10px 30px -10px rgba(11,11,12,.45);transition:transform .25s var(--rc-ease),box-shadow .25s,background .25s}
.rc-btn:hover{transform:translateY(-2px) scale(1.02);box-shadow:0 16px 36px -12px rgba(11,11,12,.5)}
.rc-btn svg{width:19px;height:19px;flex:none;margin-top:-2px}
.rc-btn small{display:block;font-size:11px;font-weight:550;opacity:.75;line-height:1;letter-spacing:.01em}
.rc-btn .t{display:flex;flex-direction:column;align-items:flex-start;line-height:1.1}
.rc-btn-green{--bg:var(--rc-green)}
.rc-btn-white{--bg:#fff;--fg:var(--rc-ink);box-shadow:0 10px 30px -10px rgba(0,0,0,.6)}
.rc-btn-xl{height:64px;padding:0 30px;font-size:19px}
.rc-btn-xl svg{width:24px;height:24px}
.rc-nav .rc-btn{height:44px;padding:0 18px;font-size:15px}
.rc-nav[data-theme=dark] .rc-btn{--bg:#fff;--fg:var(--rc-ink)}
@media (max-width:720px){.rc-links a.rc-hide-sm{display:none}.rc-links{gap:18px}.rc-nav .rc-btn{padding:0 14px}.rc-nav .rc-btn .lg{display:none}}
@media (max-width:420px){.rc-logo span{display:none}}

/* mobile dock: a persistent download bar once the hero is gone */
.rc-dock{position:fixed;left:12px;right:12px;bottom:calc(12px + env(safe-area-inset-bottom));z-index:60;display:none;transform:translateY(140%);transition:transform .45s var(--rc-ease)}
.rc-dock.on{transform:none}
.rc-dock .rc-btn{width:100%;height:58px;font-size:17px}
@media (max-width:820px){.rc-dock{display:block}}

/* phone frame */
.rc-phone{position:relative;width:var(--pw,300px);aspect-ratio:9/19.3;border-radius:calc(var(--pw,300px) * .16);background:#0b0b0c;padding:calc(var(--pw,300px) * .032);box-shadow:0 0 0 1.5px #2a2b2d inset,0 40px 80px -30px rgba(0,0,0,.55),0 18px 40px -20px rgba(0,0,0,.35)}
.rc-phone .scr{position:relative;width:100%;height:100%;border-radius:calc(var(--pw,300px) * .13);overflow:hidden;background:#f7f7f7}
.rc-phone .scr img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:top;transform:translateY(100%);transition:transform .8s cubic-bezier(.65,0,.35,1)}
.rc-phone .scr img.on{transform:none}
.rc-phone .scr img.up{transform:translateY(-100%)}
@media (prefers-reduced-motion:reduce){.rc-phone .scr img{transition:none}}
.rc-phone .isl{display:none;position:absolute;top:calc(var(--pw,300px) * .052);left:50%;transform:translateX(-50%);width:30%;height:calc(var(--pw,300px) * .085);background:#0b0b0c;border-radius:999px;z-index:2}

/* footer spacing for the dock on phones */
@media (max-width:820px){.site-footer{padding-bottom:96px}}

/* inner pages: the nav is fixed, so push content below it */
body.clarity:not(.rc-home) > main{padding-top:72px}