*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#F4F4F1;--bg2:#ECEAE5;--white:#FAFAF8;--dark:#0f0f0f;
  --green:#22C55E;--green-dim:rgba(34,197,94,0.12);
  --red:#EF4444;
  --gray:#6B7280;--gray2:#9CA3AF;
  --border:rgba(0,0,0,0.08);--border-med:rgba(0,0,0,0.12);
}
html,body{height:100%;overflow:hidden}
body{
  font-family:'DM Sans',sans-serif;
  background:var(--bg);
  color:var(--dark);
  -webkit-font-smoothing:antialiased;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
}
h1,h2,h3{font-family:'Instrument Serif',Georgia,serif;font-weight:400}

body::before{
  content:'';
  position:fixed;inset:0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size:40px 40px;
  pointer-events:none;
  z-index:0;
}

.logo{
  display:flex;align-items:center;gap:7px;
  font-family:'Instrument Serif',serif;font-size:22px;color:var(--dark);
  margin-bottom:32px;
  position:relative;z-index:1;
}
.logo-sub{font-family:'DM Sans',sans-serif;font-size:13px;font-weight:500;color:var(--gray)}
.ndot{
  width:8px;height:8px;background:var(--green);border-radius:50%;
  animation:pulse 2.5s ease-in-out infinite;
  /* will-change promotes to its own compositor layer, avoiding main-thread repaints */
  will-change:transform,opacity;
}
/* FIX (perf): was animating box-shadow — a non-composited, main-thread repaint path.
   Replaced with transform + opacity, which run entirely on the GPU compositor. */
@keyframes pulse{
  0%,100%{opacity:1;transform:scale(1)}
  50%{opacity:.6;transform:scale(1.55)}
}

.card{
  background:var(--white);
  border:1px solid var(--border-med);
  border-radius:20px;
  padding:36px 36px 32px;
  width:380px;
  max-width:calc(100vw - 32px);
  box-shadow:0 4px 12px rgba(0,0,0,.05), 0 20px 48px rgba(0,0,0,.07);
  position:relative;z-index:1;
}
.card-title{
  font-size:24px;line-height:1.1;letter-spacing:-.2px;
  color:var(--dark);margin-bottom:6px;
}
.card-sub{
  font-size:13px;color:var(--gray);line-height:1.55;margin-bottom:28px;
}

.field{margin-bottom:16px}
.field-label{
  display:block;font-size:12px;font-weight:600;
  color:var(--dark);margin-bottom:6px;
}
.field-input{
  width:100%;height:42px;padding:0 14px;
  background:var(--bg);
  border:1px solid var(--border-med);
  border-radius:11px;
  font-family:'DM Sans',sans-serif;font-size:14px;
  color:var(--dark);outline:none;
  transition:border-color .2s, box-shadow .2s;
}
.field-input::placeholder{color:var(--gray2)}
.field-input:focus{
  border-color:rgba(0,0,0,.3);
  box-shadow:0 0 0 3px rgba(0,0,0,.05);
}
.field-input.err{border-color:var(--red)}

.field-err{
  font-size:11px;color:var(--red);margin-top:5px;
  display:none;
}
.field-err.show{display:block}

.btn-submit{
  width:100%;height:44px;
  background:var(--dark);color:#fff;
  border:none;border-radius:100px;
  font-family:'DM Sans',sans-serif;font-size:14px;font-weight:600;
  cursor:pointer;
  display:flex;align-items:center;justify-content:center;gap:7px;
  transition:opacity .2s;
  margin-top:8px;
}
.btn-submit:hover{opacity:.83}
.btn-submit:disabled{opacity:.45;cursor:not-allowed}
.btn-submit .bdot{
  width:6px;height:6px;background:#fff;border-radius:50%;
  flex-shrink:0;opacity:.7;
}

.spinner{
  width:16px;height:16px;border-radius:50%;
  border:2px solid rgba(255,255,255,.3);
  border-top-color:#fff;
  animation:spin .7s linear infinite;
  will-change:transform;
  display:none;
}
@keyframes spin{to{transform:rotate(360deg)}}
.btn-submit.loading .spinner{display:block}
.btn-submit.loading .btn-label{display:none}

/* Loading overlay used during magic-link verification */
.verify-state{
  display:none;
  flex-direction:column;align-items:center;
  text-align:center;padding:24px 0 8px;
}
.verify-state.show{display:flex}
.verify-state .spinner{
  display:block;
  border-color:rgba(0,0,0,.15);
  border-top-color:var(--dark);
  width:22px;height:22px;
}
.verify-state p{margin-top:14px;font-size:13px;color:var(--gray)}

.success-state{
  display:none;
  flex-direction:column;align-items:center;
  text-align:center;padding:8px 0 4px;
}
.success-state.show{display:flex}
.success-icon{
  width:44px;height:44px;border-radius:50%;
  background:var(--green-dim);
  display:flex;align-items:center;justify-content:center;
  font-size:20px;margin-bottom:12px;
  animation:pop .3s cubic-bezier(.34,1.56,.64,1);
}
@keyframes pop{from{transform:scale(.6);opacity:0}to{transform:scale(1);opacity:1}}
.success-title{font-size:16px;font-weight:600;color:var(--dark);margin-bottom:4px}
.success-sub{font-size:13px;color:var(--gray)}
.success-bar-wrap{width:100%;margin-top:16px}
.success-bar-track{height:3px;background:rgba(0,0,0,.08);border-radius:100px;overflow:hidden}
/* FIX (perf): was animating width — forces layout recalculation on every frame.
   Now uses transform:scaleX() which runs entirely on the GPU compositor layer. */
.success-bar-fill{
  height:100%;background:var(--green);border-radius:100px;
  transform:scaleX(0);transform-origin:left center;
  transition:transform 1.8s linear;
  will-change:transform;
}

.signin-footer{
  margin-top:20px;font-size:12px;color:var(--gray2);
  text-align:center;position:relative;z-index:1;
}
/* rel="noopener noreferrer" applied in markup; color/hover handled here */
.signin-footer a{color:var(--gray);text-decoration:underline;text-decoration-color:rgba(0,0,0,.2);}
.signin-footer a:hover{color:var(--dark)}