/* ===== Sonder · shared design system (light · warm · premium) ===== */
:root{
  --bg:#faf6f0; --bg-2:#f3e8dc;
  --surface:#ffffff; --surface-2:#f7f0e8;
  --border:rgba(60,42,30,0.10); --border-strong:rgba(60,42,30,0.18);
  --text:#2c2521; --text-2:#6a5f57; --text-3:#9b9088;
  --accent:#e2624a; --accent-hover:#d1503a; --accent-2:#3fa07a;
  --accent-soft:rgba(226,98,74,0.12);
  --grad:linear-gradient(135deg,#ef7a5a,#e2624a);
  --grad-bright:linear-gradient(140deg,#f6ad84,#ec7a5a);
  --radius:18px; --radius-sm:12px;
  --shadow:0 10px 40px rgba(90,60,40,0.08); --shadow-lg:0 30px 70px rgba(90,60,40,0.13);
  --font:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --maxw:1080px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;line-height:1.5;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%}

/* soft warm ambient */
.ambient{position:fixed;inset:0;z-index:0;overflow:hidden;pointer-events:none}
.ambient::before,.ambient::after{content:"";position:absolute;border-radius:50%;filter:blur(100px);opacity:0.55;animation:float 26s ease-in-out infinite}
.ambient::before{width:640px;height:640px;background:radial-gradient(circle,#f7caa6,transparent 70%);top:-240px;left:-160px}
.ambient::after{width:600px;height:600px;background:radial-gradient(circle,#f1cdd6,transparent 70%);top:360px;right:-200px;animation-delay:-13s}
@keyframes float{0%,100%{transform:translate(0,0)}50%{transform:translate(46px,-36px)}}

.wrap{position:relative;z-index:1;max-width:var(--maxw);margin:0 auto;padding-left:24px;padding-right:24px}

/* nav */
.nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);background:rgba(250,246,240,0.72);border-bottom:1px solid var(--border)}
.nav-inner{max-width:var(--maxw);margin:0 auto;padding:15px 24px;display:flex;align-items:center;gap:24px}
.logo{display:flex;align-items:center;gap:9px;font-weight:750;font-size:19px;letter-spacing:-0.02em;color:var(--text)}
.logo .mark{width:28px;height:28px;border-radius:9px;background:var(--grad-bright);display:flex;align-items:center;justify-content:center;box-shadow:0 4px 12px rgba(226,98,74,0.3)}
.nav-links{display:flex;gap:26px;margin-left:18px}
.nav-links a{font-size:14.5px;color:var(--text-2);transition:color .15s}
.nav-links a:hover{color:var(--text)}
.nav-cta{margin-left:auto;display:flex;align-items:center;gap:16px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:inherit;font-size:15px;font-weight:600;border:none;cursor:pointer;border-radius:13px;padding:12px 22px;transition:transform .15s,box-shadow .2s,background .2s;white-space:nowrap}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 22px rgba(226,98,74,0.32)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(226,98,74,0.42)}
.btn-ghost{background:var(--surface);color:var(--text);border:1px solid var(--border-strong)}
.btn-ghost:hover{background:var(--surface-2);transform:translateY(-1px)}
.btn-sm{padding:9px 17px;font-size:14px;border-radius:11px}
.btn-lg{padding:15px 30px;font-size:16px;border-radius:15px}
.btn-link{background:none;color:var(--text-2);font-size:14.5px;font-weight:600;cursor:pointer}
.btn-link:hover{color:var(--text)}

/* sections */
section{position:relative;z-index:1;padding-top:70px;padding-bottom:70px}
.eyebrow{display:inline-block;font-size:14px;font-weight:700;letter-spacing:0.16em;text-transform:uppercase;color:var(--accent);margin-bottom:20px}
h1{font-size:clamp(40px,6.4vw,68px);font-weight:760;letter-spacing:-0.035em;line-height:1.03;color:var(--text)}
h2{font-size:clamp(29px,4vw,44px);font-weight:730;letter-spacing:-0.03em;line-height:1.1;color:var(--text)}
h3{font-size:20px;font-weight:680;letter-spacing:-0.01em;color:var(--text)}
.lead{font-size:clamp(17px,2.2vw,21px);color:var(--text-2);line-height:1.62}
.section-head{text-align:center;max-width:680px;margin:0 auto 64px}
.section-head p{margin-top:16px}
.grad-text{background:linear-gradient(115deg,#e2624a,#f0a05c);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}

/* cards / grids */
.grid{display:grid;gap:20px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:26px;box-shadow:0 1px 2px rgba(90,60,40,0.04);transition:transform .2s,border-color .2s,box-shadow .2s}
.card:hover{transform:translateY(-3px);border-color:var(--border-strong);box-shadow:var(--shadow)}
.card .ico{width:46px;height:46px;border-radius:13px;background:var(--accent-soft);display:flex;align-items:center;justify-content:center;margin-bottom:16px;color:var(--accent)}
.card .ico svg{width:23px;height:23px;stroke:currentColor;stroke-width:1.6;fill:none;stroke-linecap:round;stroke-linejoin:round}
.card h3{margin-bottom:9px}
.card p{color:var(--text-2);font-size:14.5px;line-height:1.62}

/* footer */
footer{position:relative;z-index:1;border-top:1px solid var(--border);padding:48px 0 40px;margin-top:40px}
.foot-inner{max-width:var(--maxw);margin:0 auto;padding:0 24px;display:flex;flex-wrap:wrap;gap:30px;justify-content:space-between;align-items:center}
.foot-links{display:flex;gap:24px;flex-wrap:wrap}
.foot-links a{font-size:14px;color:var(--text-3)}
.foot-links a:hover{color:var(--text-2)}
.foot-note{font-size:13px;color:var(--text-3);max-width:640px}

/* forms / auth */
.auth-page{min-height:100dvh;display:flex;align-items:center;justify-content:center;padding:32px 20px;position:relative;z-index:1}
.auth-card{width:100%;max-width:420px;background:var(--surface);border:1px solid var(--border);border-radius:24px;padding:36px;box-shadow:var(--shadow-lg)}
.auth-card .logo{justify-content:center;margin-bottom:6px;font-size:20px}
.auth-card h2{text-align:center;font-size:24px;margin-bottom:6px}
.auth-card .sub{text-align:center;color:var(--text-3);font-size:14px;margin-bottom:26px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--text-2);margin-bottom:7px}
.field input{width:100%;background:var(--bg);border:1px solid var(--border-strong);border-radius:13px;padding:13px 15px;color:var(--text);font-family:inherit;font-size:15px;outline:none;transition:border-color .2s,box-shadow .2s}
.field input::placeholder{color:var(--text-3)}
.field input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.auth-card .btn{width:100%;margin-top:6px}
.auth-alt{text-align:center;font-size:14px;color:var(--text-3);margin-top:20px}
.auth-alt a{color:var(--accent);font-weight:600}
.msg{font-size:13.5px;text-align:center;margin-top:14px;min-height:18px}
.msg.err{color:#c0392b}
.msg.ok{color:var(--accent-2)}

@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
@media (max-width:860px){
  .nav-links{display:none}
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  section{padding-top:52px;padding-bottom:52px}
}
@media (max-width:560px){
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .hero-cta{flex-direction:column}
}