body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(ellipse 70% 50% at 15% 20%, rgba(26,92,42,.18) 0%, transparent 55%),
    radial-gradient(ellipse 60% 60% at 85% 80%, rgba(200,149,42,.1) 0%, transparent 55%),
    #F5F5F7;
}

.login-topbar {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px 5%;
  background: rgba(26,92,42,.96);
  backdrop-filter: blur(20px);
}

.login-topbar a {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.login-topbar img { height: 40px; }
.login-topbar-text .sub  { display:block; font-size:10px; letter-spacing:2.5px; text-transform:uppercase; color:rgba(255,255,255,.55); }
.login-topbar-text .name { display:block; font-size:17px; font-weight:700; color:#fff; letter-spacing:-.3px; }

.login-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px 5%;
}

.login-card {
  background: #fff;
  border-radius: 24px;
  box-shadow: 0 4px 40px rgba(0,0,0,.10), 0 0 0 1px rgba(0,0,0,.05);
  width: 100%;
  max-width: 420px;
  padding: 44px 40px 40px;
  animation: fadeUp .5s both;
}

@keyframes fadeUp {
  from { opacity:0; transform:translateY(20px); }
  to   { opacity:1; transform:translateY(0); }
}

.lock-icon {
  width: 64px; height: 64px;
  border-radius: 20px;
  background: linear-gradient(135deg, var(--green-dark), var(--green-mid));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  font-size: 28px;
  box-shadow: 0 8px 24px rgba(26,92,42,.28);
}

.login-card h1 {
  text-align: center;
  font-size: 22px;
  font-weight: 800;
  color: var(--text-dark);
  letter-spacing: -.3px;
  margin-bottom: 6px;
}

.login-card .subtitle {
  text-align: center;
  font-size: 14px;
  color: var(--gray-mid);
  margin-bottom: 32px;
}

.field { margin-bottom: 16px; }

.field label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-mid);
  letter-spacing: .5px;
  text-transform: uppercase;
  margin-bottom: 7px;
}

.field input {
  width: 100%;
  padding: 13px 16px;
  border: 1.5px solid var(--gray-light);
  border-radius: 12px;
  font-size: 15px;
  font-family: var(--font);
  color: var(--text-dark);
  background: var(--gray-bg);
  transition: border-color .2s, box-shadow .2s, background .2s;
  outline: none;
}

.field input:focus {
  border-color: var(--green-dark);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(26,92,42,.1);
}

.field-pass { position: relative; }
.field-pass input { padding-right: 46px; }

.toggle-pass {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  color: var(--gray-mid);
  font-size: 16px;
  display: flex;
  align-items: center;
}

.alert-error {
  display: none;
  background: #FFF0F0;
  border: 1.5px solid #FFCCCC;
  color: #CC3333;
  border-radius: 10px;
  padding: 11px 14px;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 16px;
  align-items: center;
  gap: 8px;
}

.alert-error.show { display: flex; }

.btn-login {
  width: 100%;
  padding: 14px;
  border-radius: 12px;
  border: none;
  background: linear-gradient(135deg, var(--green-dark), var(--green-mid));
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  font-family: var(--font);
  cursor: pointer;
  margin-top: 8px;
  transition: opacity .2s, transform .15s, box-shadow .2s;
  box-shadow: 0 4px 20px rgba(26,92,42,.3);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn-login:hover:not(:disabled) {
  opacity: .92;
  transform: translateY(-1px);
  box-shadow: 0 8px 28px rgba(26,92,42,.35);
}

.btn-login:disabled { opacity: .65; cursor: wait; }

.spinner {
  display: none;
  width: 18px; height: 18px;
  border: 2.5px solid rgba(255,255,255,.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.loading .spinner  { display: block; }
.loading .btn-text { display: none; }

.back-link {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: 24px;
  font-size: 13px;
  color: var(--gray-mid);
  text-decoration: none;
  transition: color .2s;
}

.back-link:hover { color: var(--green-dark); }

.login-footer {
  text-align: center;
  padding: 16px;
  font-size: 12px;
  color: rgba(0,0,0,.35);
}

@media (max-width: 480px) {
  .login-card { padding: 32px 24px 28px; }
}