/**
 * Página de Login - Diseño profesional y responsive
 */

:root {
  --login-bg: #f0f4f8;
  --login-card-bg: rgba(15, 23, 42, 0.5);
  --login-card-border: transparent;
  --login-border: rgba(255, 255, 255, 0.25);
  --login-primary: #2563eb;
  --login-primary-hover: #1d4ed8;
  --login-radius: 12px;
  --login-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.06);
  --login-shadow-lg: 0 20px 40px -8px rgba(0, 0, 0, 0.25);
  --login-text: #ffffff;
  --login-text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background: var(--login-bg);
  /* Composición a partir de referencias: B. Braun Infusomat Space, Fresenius Agilia VP MC, Baxter Starling */
  background-image: url('../img/login-bg-composite-referencias-v3.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
  position: relative;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 23, 42, 0.4);
  z-index: 0;
  pointer-events: none;
}

.login-wrap {
  width: 100%;
  max-width: 400px;
  position: relative;
  z-index: 1;
}

.login-card {
  background: var(--login-card-bg);
  border: none;
  border-radius: var(--login-radius);
  box-shadow: var(--login-shadow-lg);
  overflow: hidden;
}

.login-card .card-body {
  padding: 2rem;
}

@media (max-width: 575.98px) {
  .login-card .card-body {
    padding: 1.5rem;
  }
}

.login-card .card-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--login-text);
  text-shadow: var(--login-text-shadow);
  text-align: center;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.login-card .form-group {
  margin-bottom: 1.25rem;
}

.login-card .form-group label {
  display: block;
  font-weight: 500;
  color: var(--login-text);
  text-shadow: var(--login-text-shadow);
  margin-bottom: 0.35rem;
  font-size: 0.9rem;
}

.login-card .form-control {
  width: 100%;
  padding: 0.65rem 0.9rem;
  font-size: 1rem;
  color: #1e293b;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--login-border);
  border-radius: 8px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.login-card .form-control::placeholder {
  color: rgba(30, 41, 59, 0.6);
}

.login-card .form-control:focus {
  border-color: var(--login-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.25);
  outline: none;
  background: #fff;
}

.login-card .alert {
  border-radius: 8px;
  margin-bottom: 1rem;
}

.btn-login {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 8px;
  border: none;
  background: var(--login-primary);
  color: #fff;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.1s ease;
  margin-top: 0.5rem;
}

.btn-login:hover {
  background: var(--login-primary-hover);
  color: #fff;
}

.btn-login:active {
  transform: scale(0.99);
}

/* Touch target mínimo */
@media (pointer: coarse) {
  .btn-login {
    min-height: 48px;
  }
}

.login-credit {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.88);
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.55);
  letter-spacing: 0.02em;
}

/* Cloudflare Turnstile */
.login-turnstile {
  display: flex;
  justify-content: center;
  min-height: 70px;
}

.login-turnstile .cf-turnstile iframe {
  border-radius: 6px;
}