:root { --overlay: rgba(0,0,0,.35); }

.login-wrap { min-height: 100vh; }
.login-hero {
  background-image: url("/static/img/login.png");
  background-size: cover;
  background-position: center;
  position: relative;
}

.login-hero::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(135deg, var(--overlay), rgba(0,0,0,.15));
}

body.login-bg {
  background-image: url("/static/img/login.png");
  background-size: cover; background-position: center; background-attachment: fixed;
}

.login-card {
  max-width: 440px; width: 100%;
  border: 0; border-radius: 16px;
  background: rgba(255,255,255,.78);
  backdrop-filter: blur(12px);
  box-shadow: 0 20px 50px rgba(0,0,0,.25);
  transform: translateY(0); transition: transform .3s ease, box-shadow .3s ease;
}
.login-card:hover { transform: translateY(-2px); box-shadow: 0 24px 60px rgba(0,0,0,.3); }

.brand-mark {
  display:inline-flex; align-items:center; gap:.5rem;
  font-weight:700; letter-spacing:.5px;
}

/* 入力の見栄え */
.input-group-text { background: transparent; border-right: 0; }
.input-group .form-control { border-left: 0; }
.form-control:focus { box-shadow: none; border-color:#0d6efd; }

/* ログインボタン */
.btn-login { height: 44px; font-weight: 600; }