@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,600;1,300;1,400&family=DM+Sans:wght@300;400;500&family=DM+Mono:wght@400;500&display=swap');

:root {
  --w:      #ffffff;
  --f1:     #fafaf9;
  --f2:     #f4f3f0;
  --ink:    #0e0e0e;
  --muted:  #6e6e6e;
  --muted2: #a0a0a0;
  --line:   #e2dfd8;
  --line2:  #d0ccc4;
  --blue:   #0f3460;
  --teal:   #0d5c4a;
  --red:    #c0392b;
  --green:  #1f6b52;
  --font:   'DM Sans', system-ui, sans-serif;
  --serif:  'Cormorant Garamond', Georgia, serif;
  --mono:   'DM Mono', monospace;
  --ease:   cubic-bezier(0.4,0,0.2,1);
  --spring: cubic-bezier(0.34,1.56,0.64,1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; }
body {
  font-family: var(--font); background: var(--f1);
  color: var(--ink); min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  padding: 24px; position: relative;
  -webkit-font-smoothing: antialiased;
}

/* Fondo */
.login-bg {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
}
.login-bg-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(#e2dfd8 1px, transparent 1px),
    linear-gradient(90deg, #e2dfd8 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 20%, transparent 100%);
  opacity: 0.4;
}

/* Wrap */
.login-wrap {
  position: relative; z-index: 1;
  width: 100%; max-width: 420px;
  display: flex; flex-direction: column; gap: 28px;
  animation: wrapIn 0.6s var(--ease) both;
}
@keyframes wrapIn { from { opacity:0; transform:translateY(20px); } to { opacity:1; transform:none; } }

/* Brand */
.login-brand {
  display: flex; align-items: center; gap: 12px;
  align-self: center; text-decoration: none;
  transition: opacity 0.2s;
}
.login-brand:hover { opacity: 0.75; }
.login-brand-name {
  font-family: var(--serif); font-size: 20px; font-weight: 600;
  color: var(--ink); letter-spacing: -0.3px; line-height: 1;
}
.login-brand-name em { color: var(--blue); font-style: normal; }
.login-brand-sub {
  font-family: var(--mono); font-size: 9px; color: var(--muted2);
  letter-spacing: 0.14em; text-transform: uppercase; margin-top: 3px;
}

/* Card */
.login-card {
  background: var(--w); border: 1px solid var(--line);
  border-radius: 4px; padding: 40px;
  box-shadow: 0 4px 32px rgba(0,0,0,0.06), 0 1px 4px rgba(0,0,0,0.04);
}
.login-card-header { margin-bottom: 32px; }
.login-card-header h1 {
  font-family: var(--serif); font-size: 28px; font-weight: 600;
  color: var(--ink); letter-spacing: -0.5px; margin-bottom: 6px;
}
.login-card-header p { font-size: 13.5px; color: var(--muted); line-height: 1.6; }

/* Form */
form { display: flex; flex-direction: column; gap: 20px; }

.field-group { display: flex; flex-direction: column; gap: 7px; }
.field-group label {
  font-size: 12px; font-weight: 500; color: var(--muted);
  letter-spacing: 0.04em; text-transform: uppercase;
  font-family: var(--mono);
}
.field-wrap { position: relative; display: flex; align-items: center; }
.field-icon { position: absolute; left: 13px; color: var(--muted2); pointer-events: none; }
.field-wrap input {
  width: 100%; background: var(--f1); border: 1px solid var(--line2);
  color: var(--ink); border-radius: 2px; padding: 12px 42px;
  font-size: 14.5px; font-family: var(--font); outline: none;
  transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
  -webkit-appearance: none;
}
.field-wrap input:focus {
  border-color: var(--blue); background: var(--w);
  box-shadow: 0 0 0 3px rgba(15,52,96,0.08);
}
.field-wrap input::placeholder { color: var(--muted2); }
.field-eye {
  position: absolute; right: 12px; color: var(--muted2);
  padding: 4px; transition: color 0.15s; background: none; border: none; cursor: pointer;
}
.field-eye:hover { color: var(--muted); }

/* Error */
.login-error {
  display: none; align-items: center; gap: 8px;
  background: rgba(192,57,43,0.06); border: 1px solid rgba(192,57,43,0.18);
  color: var(--red); padding: 10px 13px; border-radius: 2px;
  font-size: 13px; animation: shake 0.4s var(--ease);
}
.login-error.show { display: flex; }
@keyframes shake {
  0%,100% { transform:none; }
  20%,60%  { transform:translateX(-4px); }
  40%,80%  { transform:translateX(4px); }
}

/* Botón */
.btn-submit {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  width: 100%; padding: 13px; background: var(--ink); color: white;
  border-radius: 2px; font-size: 14px; font-weight: 500;
  font-family: var(--font); letter-spacing: 0.03em;
  border: none; cursor: pointer; margin-top: 4px;
  position: relative; overflow: hidden;
  transition: transform 0.25s var(--ease), box-shadow 0.25s, opacity 0.2s;
}
.btn-submit::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, var(--blue), var(--teal));
  opacity: 0; transition: opacity 0.35s;
}
.btn-submit span, .btn-submit svg, .btn-submit div { position: relative; z-index: 1; }
.btn-submit:hover:not(:disabled) { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.16); }
.btn-submit:hover:not(:disabled)::before { opacity: 1; }
.btn-submit:disabled { opacity: 0.7; cursor: not-allowed; }
.btn-submit.success { background: var(--green); }
.btn-submit.success::before { display: none; }

.btn-spinner {
  display: none; width: 16px; height: 16px;
  border: 2px solid rgba(255,255,255,0.25);
  border-top-color: white; border-radius: 50%;
  animation: spin 0.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Footer */
.login-footer {
  text-align: center; margin-top: 20px; font-size: 13px; color: var(--muted2);
}
.login-footer a { color: var(--muted); transition: color 0.2s; }
.login-footer a:hover { color: var(--ink); }

/* Responsive */
@media (max-width: 480px) {
  .login-card { padding: 28px 24px; }
}