/* login page styles (split from app.css). Loaded after app.css. */

/* ===== 登录页：玻璃拟态 ===== */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #232a44 0%, #2f2c53 55%, #3a3560 100%);
}

/* 背景柔光光斑（低亮度，避免刺眼） */
.login-page::before,
.login-page::after {
    content: "";
    position: absolute;
    border-radius: 50%;
    filter: blur(110px);
    opacity: 0.28;
    pointer-events: none;
}
.login-page::before {
    width: 460px;
    height: 460px;
    top: -120px;
    left: -100px;
    background: #4f6bd8;
}
.login-page::after {
    width: 420px;
    height: 420px;
    bottom: -140px;
    right: -80px;
    background: #7d6bb0;
}

.login-card {
    position: relative;
    z-index: 1;
    width: 360px;
    padding: 40px 34px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.14);
    border: 1px solid rgba(255, 255, 255, 0.28);
    box-shadow: 0 20px 50px -12px rgba(15, 23, 42, 0.45);
    -webkit-backdrop-filter: blur(18px) saturate(160%);
    backdrop-filter: blur(18px) saturate(160%);
    color: #fff;
}

.login-title {
    margin: 0 0 4px;
    font-size: 26px;
    font-weight: 700;
    text-align: center;
    color: #fff;
    letter-spacing: -0.02em;
}
.login-subtitle {
    margin: 0 0 26px;
    text-align: center;
    color: rgba(255, 255, 255, 0.75);
    font-size: 13px;
}

.login-card .form-group label {
    color: rgba(255, 255, 255, 0.85);
}
.login-card .form-group input {
    background: rgba(255, 255, 255, 0.16);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: #fff;
    border-radius: 10px;
    padding: 11px 14px;
}
.login-card .form-group input::placeholder {
    color: rgba(255, 255, 255, 0.6);
}
.login-card .form-group input:focus {
    border-color: rgba(255, 255, 255, 0.85);
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.18);
    background: rgba(255, 255, 255, 0.22);
}

.login-btn {
    width: 100%;
    margin-top: 10px;
    padding: 12px;
    border: none;
    border-radius: 12px;
    background: #fff;
    color: #4353ff;
    font-weight: 700;
    font-size: 15px;
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.15s ease, filter 0.15s ease;
    box-shadow: 0 10px 24px -10px rgba(0, 0, 0, 0.5);
}
.login-btn:hover {
    background: #fff;
    color: #4353ff;
    transform: translateY(-1px);
    filter: brightness(1);
    box-shadow: 0 14px 30px -10px rgba(0, 0, 0, 0.55);
}
.login-btn:active {
    transform: translateY(0);
}

.login-error {
    color: #ffe4e6;
    background: rgba(190, 18, 60, 0.35);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    padding: 7px 10px;
    font-size: 13px;
    margin: 0 0 10px;
    text-align: center;
}