/* =========================================
   1. 黑曜石 & 琥珀金 色板配置
   ========================================= */
:root {
    --bg-base: #09090b;
    --bg-surface: #121214;
    --bg-hover: #1f1f22;
    --bg-input: #000000;
    --text-main: #ffffff;
    --text-body: #a1a1aa;
    --text-muted: #71717a;
    --accent-color: #f59e0b;
    /* 琥珀金 */
    --border-subtle: #27272a;
    --border-strong: #3f3f46;

    --transition-smooth: all 0.2s ease;
}

/* =========================================
   2. 全局容器与背景
   ========================================= */
.login-page {
    background-color: var(--bg-base);
    color: var(--text-body);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    /* 纯 CSS 绘制极简网格 */
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 40px 40px;

}

.login-page main {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
    padding-bottom: 12vh;
    position: relative;
    z-index: 1;
}

/* =========================================
   3. 登录卡片
   ========================================= */
.login-card {
    background-color: var(--bg-surface) !important;
    border: 1px solid var(--border-strong) !important;
    border-radius: 12px !important;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.8) !important;
    /* 纯黑阴影 */
    position: relative;
    overflow: hidden;
}

/* 卡片内部间距 */
.login-card .card-body {
    padding: 3rem;
}

@media (max-width: 768px) {
    .login-card .card-body {
        padding: 1.5rem;
    }
}

/* =========================================
   4. 标题样式
   ========================================= */
.login-title {
    color: var(--text-main);
    font-weight: 800;
    letter-spacing: -0.02em;
    text-align: center;
    margin-bottom: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.login-title::after {
    content: '';
    width: 24px;
    height: 4px;
    background-color: var(--accent-color);
    border-radius: 2px;
}

/* =========================================
   5. 登录方式标签页 (Tabs)
   ========================================= */
.login-tabs {
    border-bottom: 1px solid var(--border-subtle);
    margin-bottom: 2rem;
    display: flex;
    justify-content: center;
}

.login-tabs .nav-link {
    color: var(--text-muted);
    border: none;
    border-bottom: 2px solid transparent;
    padding: 0.75rem 1rem;
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition-smooth);
    background: transparent;
}

.login-tabs .nav-link:hover {
    color: var(--text-body);
}

.login-tabs .nav-link.active {
    color: var(--text-main);
    background: transparent;
    border-bottom-color: var(--accent-color);
    /* 琥珀色下划线 */
}

/* =========================================
   6. 表单控件
   ========================================= */
.form-label {
    color: var(--text-main);
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.form-control {
    background-color: var(--bg-input);
    border: 1px solid var(--border-subtle);
    color: var(--text-main);
    border-radius: 6px;
    padding: 10px 14px;
    font-size: 0.95rem;
    transition: var(--transition-smooth);
}

.form-control:focus {
    background-color: var(--bg-input);
    border-color: var(--text-muted);
    /* 聚焦时灰色线 */
    color: var(--text-main);
    box-shadow: none;
    outline: none;
}

.form-control::placeholder {
    color: var(--text-muted);
    font-style: italic;
}

.code-input-group {
    display: flex;
    gap: 10px;
    align-items: center;
}

.code-input-group .form-control {
    flex: 1;
}

/* =========================================
   7. 按钮样式
   ========================================= */
.btn-login {
    background-color: var(--accent-color) !important;
    border: none !important;
    color: #000000 !important;
    font-weight: 700 !important;
    padding: 12px 1.5rem !important;
    border-radius: 6px !important;
    transition: background-color 0.2s !important;
    margin-top: 10px;
}

.btn-login:hover {
    background-color: #d97706 !important;
}

/* 更深的琥珀色 */

.btn-outline-secondary {
    background: var(--bg-surface);
    border: 1px solid var(--border-strong);
    color: var(--text-body);
    font-weight: 600;
    border-radius: 6px;
    transition: var(--transition-smooth);
    white-space: nowrap;
}

.btn-outline-secondary:hover {
    background: var(--text-main);
    color: var(--bg-base);
}

/* =========================================
   8. 二维码登录区域
   ========================================= */
.qr-code-container {
    padding: 2rem;
    text-align: center;
    background: var(--bg-input);
    border-radius: 8px;
    border: 1px solid var(--border-subtle);
    margin: 1rem 0;
}

.qr-code-placeholder {
    width: 180px;
    height: 180px;
    background-color: var(--bg-surface);
    border: 1px dashed var(--border-strong);
    border-radius: 8px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.status-message {
    color: var(--text-muted);
    font-family: Consolas, monospace;
    font-size: 0.85rem;
}

/* =========================================
   9. 链接与文本覆盖
   ========================================= */
.text-primary {
    color: var(--accent-color) !important;
    text-decoration: none;
}

.text-primary:hover {
    color: #d97706 !important;
    text-decoration: underline;
}

.text-secondary {
    color: var(--text-muted) !important;
    text-decoration: none;
}

.text-secondary:hover {
    color: var(--text-main) !important;
}

/* =========================================
   10. 模态框样式
   ========================================= */
.modal-content {
    background-color: var(--bg-surface) !important;
    border: 1px solid var(--border-strong) !important;
    border-radius: 12px !important;
}

.modal-header {
    border-bottom: 1px solid var(--border-subtle) !important;
    padding: 1.5rem;
}

.modal-title {
    color: var(--text-main);
    font-weight: 700;
}

.modal-body {
    padding: 1.5rem;
}

.btn-close {
    filter: invert(1);
    opacity: 0.5;
}

.btn-close:hover {
    opacity: 1;
}

.password-tip {
    font-size: 0.8rem;
    margin-top: 5px;
    font-family: Consolas, monospace;
}

.password-tip.valid {
    color: #10b981;
}

.password-tip.invalid {
    color: #ef4444;
}



/* =========================================
   14. 隐藏层：全屏视频验证动画
   ========================================= */

/* 1. 视频外层容器 (全屏固定) */
.success-video-wrapper {
    position: fixed;
    /* 相对于整个浏览器窗口固定 */
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    /* z-index: 3; */
    background-color: var(--bg-base);
    /* 铺一层底色，彻底盖住后面的东西 */

    opacity: 0;
    pointer-events: none;
    transition: opacity 0.5s ease;
}

.success-video-wrapper.active {
    opacity: 1;
    pointer-events: all;
}

/* 2. 视频本体 (铺满底层) */
#successVideo {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    /* 保证视频铺满全屏且不变形拉伸 */
    z-index: 1;
    /* 位于容器的第一层 */
}

/* 3. 登录成功的打字机文本 (悬浮在视频中央) */
.success-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;

    background: rgba(9, 9, 11, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    padding: 20px 40px;
    border-radius: 8px;
    border: 1px solid var(--border-strong);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.8);

    color: var(--accent-color);
    font-family: Consolas, Monaco, monospace;
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: 2px;

    /* 【目标1】：让内部文字绝对居中对齐 */
    text-align: center;

    white-space: nowrap;
    overflow: hidden;
    border-right: 3px solid var(--accent-color);

    /* 【目标2】：实现延迟出现 */
    /* 先让整个框初始状态处于完全透明（隐藏） */
    opacity: 0;
    width: 0;

    /* 
      动画参数解析：
      1. showBox: 等待 0.8秒 后，瞬间让框显现 (opacity变成1)
      2. typing: 等待 0.8秒 后，开始从左到右执行打字展开动画
      (你可以把这里的 0.8s 改成你想要的任何延迟时间，比如 1.2s)
    */
    animation:
        showBox 0.1s forwards 0.8s,
        typing 1.5s steps(20, end) forwards 0.8s,
        blink-cursor .75s step-end infinite;
}

/* 溶解动画保持不变 */
.login-card {
    z-index: 2;
    transition: opacity 0.4s ease, transform 0.4s ease;
    width: 100%;
}

.login-card.fade-out {
    opacity: 0;
    transform: scale(0.9) translateY(20px);
    pointer-events: none;
}

/* --- 关键帧动画 --- */

/* 【新增】：专门用来控制框体延迟显示的动画 */
@keyframes showBox {
    to {
        opacity: 1;
    }
}

/* 打字机动画关键帧 */
@keyframes typing {
    from {
        width: 0
    }

    to {
        width: 100%
    }
}

@keyframes blink-cursor {

    from,
    to {
        border-color: transparent
    }

    50% {
        border-color: var(--accent-color);
    }
}


/* =========================================
   11. 密码显示/隐藏切换样式
   ========================================= */
.password-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.password-wrapper .form-control {
    padding-right: 42px;
    /* 为右侧图标留出空间 */
}

/* --- 内部眼睛图标 --- */
.password-toggle-icon {
    position: absolute;
    right: 14px;
    /* 距离右边框的距离 */
    top: 50%;
    transform: translateY(-50%);
    /* 垂直完美居中 */
    cursor: pointer;
    color: var(--text-muted);
    font-size: 1.1rem;
    z-index: 10;
    /* 确保在输入框之上 */
    transition: color 0.2s ease, transform 0.2s ease;
}

.password-toggle-icon:hover {
    color: var(--accent-color);
    transform: translateY(-50%) scale(1.1);
}