/* Sarsha Flow pages: bright Sarsha look */
:root{--bg:#F5F9FA;--panel:#FFFFFF;--field:#F3F7F9;--line:#DCE5EA;--ink:#132A38;--dim:#566B78;--teal:#0E9B86;--blue:#2563EB;--violet:#7C3AED;--coral:#D9583A;
--display:"Fraunces",Georgia,serif;--body:"Karla",system-ui,-apple-system,sans-serif;--shadow:0 24px 56px -38px rgba(19,42,56,.5);color-scheme:light}
*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--bg);background-image:radial-gradient(900px 520px at 88% 0%,rgba(95,224,192,.3),transparent 60%),radial-gradient(800px 520px at 0% 100%,rgba(165,196,255,.38),transparent 60%),radial-gradient(640px 420px at 55% 55%,rgba(249,168,212,.16),transparent 60%);background-attachment:fixed;color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.5}
a{color:var(--blue)}
button{font:inherit;cursor:pointer}
:focus-visible{outline:3px solid var(--blue);outline-offset:2px}
.wrap{max-width:1180px;margin:0 auto;padding:0 16px}
h1,h2,h3{font-family:var(--display);font-weight:400;margin:0;text-wrap:balance}
.sfnav{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.88);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.sfnav .wrap{display:flex;align-items:center;gap:18px;min-height:64px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);margin-right:auto}
.brand img{width:36px;height:36px;border-radius:10px}
.brand b{font-family:var(--display);font-weight:600;font-size:1.3rem;line-height:1}
.brand small{display:block;font-size:.62rem;font-weight:800;letter-spacing:.14em;color:var(--teal)}
.sfnav nav{display:flex;gap:18px;align-items:center;flex-wrap:wrap}
.sfnav nav a{color:var(--dim);font-weight:700;text-decoration:none}
.sfnav nav a:hover,.sfnav nav a[aria-current]{color:var(--ink)}
.sfnav .sep{width:1px;height:20px;background:var(--line)}
.btn{display:inline-flex;align-items:center;gap:8px;border:0;border-radius:12px;padding:11px 18px;font-weight:800;text-decoration:none;transition:transform .15s,box-shadow .2s}
.btn:hover{transform:translateY(-1px)}
.btn.primary{color:#fff;background:linear-gradient(120deg,#0E9B86,#2563EB);box-shadow:0 14px 30px -18px rgba(37,99,235,.8)}
.btn.ghost{color:var(--ink);background:#fff;border:1px solid var(--line)}
.btn.sm{padding:8px 14px;font-size:.92rem}
.kick{font-weight:800;font-size:.82rem;letter-spacing:.14em;text-transform:uppercase;background:linear-gradient(100deg,#059669,#2563EB 50%,#9333EA);-webkit-background-clip:text;background-clip:text;color:transparent}
.grad{background:linear-gradient(100deg,#059669,#2563EB 50%,#9333EA);-webkit-background-clip:text;background-clip:text;color:transparent;font-style:italic}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow)}
.chip{display:inline-flex;align-items:center;border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:999px;padding:6px 12px;font-weight:700;font-size:.86rem}
.tool{display:inline-flex;align-items:center;gap:6px;font-size:.78rem;font-weight:800;padding:5px 9px;border-radius:9px;background:var(--field);border:1px solid var(--line);color:var(--ink)}
.tool i{width:8px;height:8px;border-radius:50%;background:var(--c,#0E9B86)}
.tile{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,var(--a),var(--b));font-family:var(--display);font-size:1.3rem}
.sffoot{margin-top:56px;padding:24px 0 36px;border-top:1px solid var(--line);color:var(--dim);font-size:.9rem}
.sffoot .wrap{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:var(--ink);color:#fff;padding:10px 16px;border-radius:12px;font-weight:700;z-index:60}
@media(max-width:720px){.sfnav nav .hide-sm{display:none}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

/* v2: shimmer headline, animated flow box, sign-in button */
@keyframes sfshine{to{background-position:200% 0}}
.grad,.kick{background-size:200% auto!important;animation:sfshine 6s linear infinite}
.flowbox{position:relative;max-width:940px;margin:30px auto 0;padding:18px 22px;border-radius:26px;background:rgba(255,255,255,.75);backdrop-filter:blur(10px);border:1px solid var(--line);box-shadow:0 40px 90px -50px rgba(37,99,235,.6)}
.flowbox::before{content:"";position:absolute;inset:-2px;border-radius:28px;padding:2px;background:linear-gradient(120deg,#5FE0C0,#2563EB,#A98BFF,#5FE0C0);background-size:300% 100%;animation:sfshine 8s linear infinite;-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:.8;pointer-events:none}
.signin{border:1px solid var(--line);background:#fff;color:var(--ink)!important;padding:8px 14px;border-radius:12px}
.signin:hover{border-color:var(--teal)}
@media(prefers-reduced-motion:reduce){.grad,.kick,.flowbox::before{animation:none}}