:root {
  --bg: #f4f3ef;
  --surface: #ffffff;
  --surface2: #f9f8f5;
  --mono: 'DM Mono', monospace;
  --border: #e2e0d8;
  --border2: #cccabf;
  --text: #1a1916;
  --text2: #555049;
  --text3: #7a7870;
  --accent: #1a3a5c;
  --accent-light: #e8eef5;
  --red: #9b1c1c;
  --red-bg: #fef0f0;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(0,0,0,0.07), 0 8px 24px rgba(0,0,0,0.06);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.login-wrap {
  width: 100%;
  max-width: 380px;
  padding: 24px;
}
.brand {
  text-align: center;
  margin-bottom: 32px;
}
.brand-logo {
  display: block;
  width: min(220px, 100%);
  height: auto;
  margin: 0 auto 14px;
  border-radius: 10px;
}
.brand-name {
  font-size: 22px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.4px;
}
.brand-tag {
  font-size: 13px;
  color: var(--text3);
  margin-top: 4px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow);
  padding: 28px;
}
.card-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 22px;
}
.form-group {
  margin-bottom: 16px;
}
label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--text2);
  margin-bottom: 5px;
}
input {
  width: 100%;
  background: #f9f8f5;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 9px 12px;
  font-size: 14px;
  font-family: inherit;
  color: var(--text);
  transition: all 0.15s;
}
input:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--surface);
  box-shadow: 0 0 0 3px rgba(26,58,92,0.08);
}
.btn-login {
  width: 100%;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  padding: 11px 16px;
  font-size: 14px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s;
  margin-top: 4px;
}
.btn-login:hover { background: #0f2a45; }
.btn-login:disabled { opacity: 0.6; cursor: not-allowed; }
.error-msg {
  background: var(--red-bg);
  color: var(--red);
  border: 1px solid #fecaca;
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 13px;
  margin-bottom: 16px;
  display: none;
}
.error-msg.show { display: block; }
.footer-note {
  text-align: center;
  font-size: 11px;
  color: var(--text3);
  margin-top: 20px;
}
.spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255,255,255,0.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  margin-right: 6px;
  vertical-align: middle;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Accesibilidad: focus visible */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}
input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

/* Responsive mobile */
@media (max-width: 480px) {
  .login-wrap { padding: 16px; max-width: 100%; }
  .card { padding: 22px 20px; }
  .brand { margin-bottom: 24px; }
  input, .btn-login { min-height: 44px; font-size: 15px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}