/* ═══════════════════════════════════════════════════════════
   登录页 — CAB Analyzer
   与主应用分开一个文件: 登录页是唯一未登录可见的界面, 样式独立便于审查,
   也避免与 style.css 里大量 !important 的组件规则互相干扰。
   ═══════════════════════════════════════════════════════════ */

.login-page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 32px 20px;
    background:
        radial-gradient(1200px 600px at 15% -10%, rgba(46, 134, 193, 0.18), transparent 60%),
        linear-gradient(135deg, #12303F 0%, #0D2233 55%, #0A1A28 100%);
}

.login-card {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    width: min(940px, 100%);
    border-radius: 18px;
    overflow: hidden;
    background: #FFFFFF;
    box-shadow: 0 24px 64px rgba(4, 16, 26, 0.45), 0 2px 8px rgba(4, 16, 26, 0.3);
}

/* ── 左: 品牌栏 ─────────────────────────────────── */
.login-brand-panel {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 28px;
    padding: 40px 38px;
    color: #FFFFFF;
    background:
        radial-gradient(520px 260px at 85% 105%, rgba(245, 176, 65, 0.16), transparent 62%),
        linear-gradient(150deg, #1B4F72 0%, #123A57 62%, #0D2F47 100%);
}

.login-brand-row {
    display: flex;
    align-items: center;
    gap: 12px;
}

.login-mark { width: 46px; height: 46px; flex: none; }

.login-brand-name {
    font-size: 1.32rem;
    font-weight: 650;
    line-height: 1.15;
    letter-spacing: 0.005em;
}

.login-brand-sub {
    margin-top: 3px;
    font-size: 0.8rem;
    letter-spacing: 0.14em;
    color: rgba(255, 255, 255, 0.66);
}

.login-tagline {
    font-size: 1.02rem;
    font-weight: 600;
    line-height: 1.5;
    letter-spacing: 0.01em;
    color: rgba(255, 255, 255, 0.94);
    margin-bottom: 14px;
}

.login-points {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 9px;
}

.login-points li {
    position: relative;
    padding-left: 18px;
    font-size: 0.82rem;
    line-height: 1.55;
    color: rgba(255, 255, 255, 0.72);
}

/* 小横杠而非圆点: 呼应标识里的液相线虚线 */
.login-points li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.62em;
    width: 9px;
    height: 2px;
    border-radius: 2px;
    background: #F5B041;
    opacity: 0.85;
}

.login-ver {
    font-size: 0.68rem;
    letter-spacing: 0.06em;
    color: rgba(255, 255, 255, 0.60);
}

/* ── 右: 表单栏 ─────────────────────────────────── */
.login-form-panel {
    padding: 40px 38px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: #FFFFFF;
}

.login-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #16324A;
    margin: 0 0 4px;
    letter-spacing: -0.01em;
}

.login-subtitle {
    font-size: 0.84rem;
    color: #6B7280;
    margin-bottom: 20px;
}

.login-label {
    font-size: 0.76rem;
    font-weight: 600;
    color: #4B5563;
    margin-bottom: 5px;
    letter-spacing: 0.02em;
}

.login-input.form-control {
    border: 1px solid #DCE1E7;
    border-radius: 9px;
    padding: 0.6rem 0.8rem;
    font-size: 0.92rem;
    background: #FBFCFD;
    transition: border-color 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.login-input.form-control:focus {
    background: #FFFFFF;
    border-color: #2E86C1;
    box-shadow: 0 0 0 3px rgba(46, 134, 193, 0.16);
}

.login-submit.btn {
    margin-top: 4px;
    padding: 0.62rem 1rem;
    border: none;
    border-radius: 9px;
    font-weight: 600;
    letter-spacing: 0.06em;
    background: linear-gradient(135deg, #1B4F72 0%, #2E86C1 100%);
    box-shadow: 0 6px 16px rgba(27, 79, 114, 0.28);
    transition: transform 0.18s ease, box-shadow 0.18s ease, filter 0.18s ease;
}

.login-submit.btn:hover {
    filter: brightness(1.06);
    transform: translateY(-1px);
    box-shadow: 0 10px 22px rgba(27, 79, 114, 0.34);
}

.login-submit.btn:active { transform: translateY(0); }

/* ── 预置账号卡片 ───────────────────────────────── */
.login-prefill-label {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    color: #6A7480;      /* 3.08:1 → 4.75:1 (WCAG AA) */
    margin-bottom: 7px;
}

.login-prefill-card {
    display: flex;
    align-items: center;
    gap: 11px;
    width: 100%;
    padding: 11px 13px;
    border: 1px solid #DCE6EF;
    border-radius: 11px;
    background: linear-gradient(135deg, #F5F9FC 0%, #EDF4F9 100%);
    text-align: left;
    cursor: pointer;
    transition: border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
}

.login-prefill-card:hover {
    border-color: #2E86C1;
    box-shadow: 0 6px 16px rgba(46, 134, 193, 0.16);
    transform: translateY(-1px);
}

.login-prefill-card:focus-visible {
    outline: 2px solid #2E86C1;
    outline-offset: 2px;
}

.login-avatar {
    flex: none;
    width: 34px;
    height: 34px;
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    color: #FFFFFF;
    background: linear-gradient(135deg, #1B4F72 0%, #2E86C1 100%);
}

.login-prefill-user {
    font-size: 0.92rem;
    font-weight: 650;
    color: #16324A;
    line-height: 1.2;
}

.login-prefill-meta {
    font-size: 0.72rem;
    color: #67707E;      /* 3.74:1 → 5.01:1 */
    margin-top: 1px;
}

.login-prefill-arrow {
    flex: none;
    font-size: 0.78rem;
    color: #9AA7B4;
    transition: transform 0.18s ease, color 0.18s ease;
}

.login-prefill-card:hover .login-prefill-arrow {
    color: #2E86C1;
    transform: translateX(3px);
}

/* ── 分隔线 ─────────────────────────────────────── */
.login-divider {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 16px 0 14px;
    font-size: 0.72rem;
    color: #68737F;      /* 2.45:1 → 4.83:1 (WCAG AA) */
}

.login-divider::before,
.login-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: #E5EAEF;
}

.login-foot {
    margin-top: 16px;
    font-size: 0.72rem;
    color: #68737F;      /* 2.45:1 → 4.83:1 */
    text-align: center;
}

.login-copyright {
    margin-top: 20px;
    font-size: 0.72rem;
    letter-spacing: 0.04em;
    color: rgba(255, 255, 255, 0.62);   /* 深底上 38% 太淡 */
}

/* ── 响应式: 窄屏收掉品牌栏, 表单占满 ───────────── */
@media (max-width: 820px) {
    .login-card { grid-template-columns: 1fr; }
    .login-brand-panel {
        gap: 16px;
        padding: 26px 24px;
    }
    /* 卖点列表与版本号在窄屏是噪声, 品牌行保留 */
    .login-points, .login-ver { display: none; }
    .login-tagline { font-size: 0.9rem; margin-bottom: 0; }
    .login-form-panel { padding: 26px 24px 30px; }
}

@media (max-width: 480px) {
    .login-page { padding: 16px 12px; }
    .login-title { font-size: 1.3rem; }
}