*,*::before,*::after{box-sizing:border-box}
:root{
  --bg:#FBF8F3;--surface:#FFFFFF;--ink:#2A2521;--ink2:#6F675C;--ink3:#9A9184;
  --line:#ECE4D8;--line2:#E3DACC;--wine:#7C3B49;--wine-d:#5F2C37;--sage:#5F6E4F;
  --serif:'Cormorant Garamond',Georgia,serif;
  --sans:'Hanken Grotesk',system-ui,-apple-system,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,monospace;
}
html,body{margin:0;padding:0}
body{background:var(--bg);color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased}
a{color:var(--wine);text-decoration:none}
a:hover{color:var(--wine-d);text-decoration:underline}
button{font-family:inherit}

.shell{min-height:100vh;min-height:100svh;display:flex;flex-direction:column}

/* ---------- brand panel ---------- */
.brand{
  color:#fff;padding:56px 24px 30px;display:flex;flex-direction:column;gap:20px;
  border-radius:0 0 28px 28px;
  background:linear-gradient(180deg,rgba(124,59,73,.92),rgba(74,36,45,.97)),
             repeating-linear-gradient(135deg,#efe7db 0 14px,#e7ded0 14px 28px);
}
.logo{display:flex;align-items:center;gap:10px}
.mark{width:30px;height:30px;border-radius:50%;background:#fff;color:var(--wine);
  display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-weight:700;font-size:17px}
.wordmark{font-family:var(--serif);font-weight:600;font-size:22px}
.brand-h{font-family:var(--serif);font-size:29px;font-weight:600;line-height:1.1;margin:0;text-wrap:balance;max-width:14ch}
.perks{list-style:none;margin:22px 0 0;padding:0;display:flex;flex-direction:column;gap:14px}
.perks li{display:flex;align-items:center;gap:12px;font-size:15px;color:#F4E9DD}
.perks li::before{content:"✓";flex:0 0 auto;width:24px;height:24px;border-radius:50%;
  background:rgba(255,255,255,.16);color:#fff;font-size:13px;display:flex;align-items:center;justify-content:center}
.brand-foot{display:none;font-family:var(--mono);font-size:11px;color:rgba(255,255,255,.7);margin:0}

/* ---------- sign-in pane ---------- */
.pane{flex:1;display:flex;align-items:center;justify-content:center;padding:22px 22px 40px}
.card{width:100%;max-width:384px;animation:fadeUp .5s ease both}
@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}

.seg{display:flex;background:var(--surface);border:1px solid var(--line);border-radius:11px;padding:4px;margin-bottom:22px}
.seg-btn{flex:1;border:none;background:transparent;border-radius:8px;padding:10px;
  font-size:13.5px;font-weight:600;color:#8B8375;cursor:pointer;transition:.15s}
.seg-btn.is-active{background:#fff;color:var(--wine);box-shadow:0 1px 2px rgba(42,37,33,.12)}

.h2{font-family:var(--serif);font-size:26px;font-weight:600;line-height:1.14;margin:0}
.sub{font-size:14.5px;color:var(--ink2);margin:8px 0 0;line-height:1.5;text-wrap:pretty}

.oauth{display:flex;flex-direction:column;gap:10px;margin-top:22px}
.btn{display:flex;align-items:center;justify-content:center;gap:11px;width:100%;
  border-radius:12px;padding:14px;font-size:15px;font-weight:600;cursor:pointer;
  min-height:48px;border:1px solid transparent;transition:.15s;text-decoration:none}
.btn:hover{text-decoration:none}
.btn-oauth{background:#fff;border-color:var(--line2);color:var(--ink)}
.btn-oauth:hover{background:#FDFBF7;border-color:var(--ink3);color:var(--ink)}
.btn-apple{background:#1C1A17;color:#fff}
.btn-apple:hover{background:#000;color:#fff}
.btn-primary{background:var(--wine);color:#fff;margin-top:10px}
.btn-primary:hover{background:var(--wine-d);color:#fff}
.btn[aria-busy="true"]{opacity:.65;pointer-events:none}
.btn-ghost{background:transparent;color:var(--ink2);border-color:transparent;font-weight:500}
.btn-ghost:hover{color:var(--ink)}

.rule{display:flex;align-items:center;gap:12px;margin:18px 0;
  font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink3)}
.rule::before,.rule::after{content:"";flex:1;height:1px;background:var(--line)}

#email{width:100%;background:#fff;border:1px solid var(--line2);border-radius:12px;
  padding:14px 15px;font-family:var(--sans);font-size:15px;color:var(--ink);outline:none;min-height:48px}
#email:focus{border-color:var(--wine)}
#email[aria-invalid="true"]{border-color:#B3453F}
.err{color:#B3453F;font-size:12.5px;margin:8px 0 0}

.note{display:flex;align-items:flex-start;gap:8px;margin:12px 0 0;font-size:12.5px;color:var(--ink2);line-height:1.45}
.tick{flex:0 0 auto;width:18px;height:18px;border-radius:50%;background:#EEF1E6;color:var(--sage);
  display:flex;align-items:center;justify-content:center;font-size:11px}

.card-foot{margin-top:24px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.legal{font-size:11.5px;color:var(--ink3);margin:0;line-height:1.5}
.lang{display:flex;background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:2px;flex:0 0 auto}
.lang button{border:none;background:transparent;color:var(--ink3);font-size:11px;font-weight:600;
  border-radius:999px;padding:5px 11px;cursor:pointer}
.lang button.is-active{background:var(--wine);color:#fff}

/* ---------- sent state ---------- */
.card-sent{text-align:center}
.envelope{width:56px;height:56px;margin:0 auto 18px;border-radius:50%;background:#F3ECE0;color:var(--wine);
  display:flex;align-items:center;justify-content:center;font-size:24px}
.card-sent .sub{margin-top:10px}
.sent-actions{display:flex;flex-direction:column;gap:8px;margin-top:24px}
.card-sent .note{justify-content:center;text-align:left}
.dev-link{margin-top:16px;padding:12px;border:1px dashed var(--line2);border-radius:10px;
  background:#fff;font-family:var(--mono);font-size:11px;word-break:break-all;text-align:left}

/* ---------- desktop ---------- */
@media (min-width:900px){
  .shell{flex-direction:row}
  .brand{width:46%;max-width:620px;border-radius:0;padding:44px;justify-content:space-between;gap:0}
  .brand-h{font-size:clamp(32px,3.2vw,42px);max-width:12ch}
  .brand-foot{display:block}
  .pane{padding:40px}
  .h2{font-size:30px}
  .seg{background:var(--bg)}
  .lang{background:var(--bg)}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}