/* ── Login / Logout frosted-glass card ──
   Matches the site-background.css design system.
   Uses the same --glass-* CSS custom properties.
   ───────────────────────────────────────────── */

/* ── Login card: frosted glass ── */
.login-card {
    position: relative;
    max-width: 420px;
    width: 100%;
    background: rgba(255, 255, 255, 0.55);
    backdrop-filter: blur(12px) saturate(1.3);
    -webkit-backdrop-filter: blur(12px) saturate(1.3);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.5);
    box-shadow:
        0 8px 32px rgba(0, 0, 0, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.6);
    padding: 1.5rem 2rem;
    overflow: hidden;
}
/* Tighter vertical rhythm inside card */
.login-card .mb-3 { margin-bottom: 0.65rem !important; }

/* Specular shine overlay */
.login-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(
        180deg,
        rgba(255, 255, 255, 0.25) 0%,
        rgba(255, 255, 255, 0) 100%
    );
    border-radius: 16px 16px 0 0;
    pointer-events: none;
}

/* ── Dark mode ── */
[data-bs-theme="dark"] .login-card {
    background: rgba(33, 37, 41, 0.6);
    border-color: rgba(255, 255, 255, 0.08);
    box-shadow:
        0 8px 32px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
}
[data-bs-theme="dark"] .login-card::before {
    background: linear-gradient(
        180deg,
        rgba(255, 255, 255, 0.04) 0%,
        rgba(255, 255, 255, 0) 100%
    );
}

/* ── Logo ── */
.login-card .login-logo {
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.12));
}
[data-bs-theme="dark"] .login-card .login-logo {
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.4));
}

/* ── Heading ── */
.login-card .login-heading {
    font-weight: 600;
    letter-spacing: -0.01em;
}

/* ── Divider ── */
.login-divider {
    border: 0;
    height: 1px;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(0, 0, 0, 0.12),
        transparent
    );
    margin: 0.5rem 0 1rem;
}
[data-bs-theme="dark"] .login-divider {
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.12),
        transparent
    );
}

/* ── Input focus glow ── */
.login-card .form-control:focus {
    border-color: #86b7fe;
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.15);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.login-card .form-control {
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
[data-bs-theme="dark"] .login-card .form-control:focus {
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

/* ── Input group icon styling ── */
.login-card .input-group-text {
    background: rgba(255, 255, 255, 0.5);
    border-color: inherit;
}
[data-bs-theme="dark"] .login-card .input-group-text {
    background: rgba(52, 58, 64, 0.5);
}

/* ── Password toggle button ── */
.login-card .btn-password-toggle {
    border-color: var(--bs-border-color);
    background: rgba(255, 255, 255, 0.5);
    color: var(--bs-body-color);
    display: flex;
    align-items: center;
    padding: 0.375rem 0.75rem;
}
.login-card .btn-password-toggle:hover {
    background: rgba(0, 0, 0, 0.05);
}
[data-bs-theme="dark"] .login-card .btn-password-toggle {
    background: rgba(52, 58, 64, 0.5);
}
[data-bs-theme="dark"] .login-card .btn-password-toggle:hover {
    background: rgba(255, 255, 255, 0.08);
}

/* ── Logo spacing ── */
.login-card .login-logo { margin-bottom: 0.5rem !important; }

/* ── Submit button ── */
.login-card .btn-login {
    padding: 0.6rem 1rem;
    font-size: 1.05rem;
    font-weight: 500;
    background: linear-gradient(180deg, #0d6efd 0%, #0b5ed7 100%);
    border: none;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.login-card .btn-login:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(13, 110, 253, 0.35);
}
.login-card .btn-login:active {
    transform: translateY(0);
}

/* ── Logout card extras ── */
.login-card .logout-icon {
    font-size: 2.5rem;
    color: #198754;
}
[data-bs-theme="dark"] .login-card .logout-icon {
    color: #75b798;
}

/* ── Mobile responsive ── */
@media (max-width: 576px) {
    .login-card {
        padding: 1.5rem 1.25rem;
        border-radius: 12px;
        margin: 0 0.75rem;
    }
    .login-card::before {
        border-radius: 12px 12px 0 0;
    }
}