/* 
 * 前台用户中心样式 - 暗色影院风
 */
.frontend-main {
    min-height: calc(100vh - 60px);
    padding: 30px 20px;
    max-width: 1100px;
    margin: 0 auto;
}

.site-header {
    background: rgba(0,0,0,0.9);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
    height: 56px;
}

.header-inner .logo {
    font-size: 18px;
    font-weight: 700;
    color: #fff;
    text-decoration: none;
}

.header-inner nav {
    display: flex;
    gap: 20px;
}

.header-inner nav a {
    color: #bbb;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s;
}

.header-inner nav a:hover {
    color: #fff;
}

/* 卡片 */
.f-card {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 12px;
    margin-bottom: 20px;
    overflow: hidden;
}

.f-card-header {
    padding: 16px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.f-card-header h2 {
    font-size: 17px;
    font-weight: 600;
    color: #e0e0e0;
    margin: 0;
}

/* 播放列表导航项 */
.pl-nav-item {
    padding: 8px 10px; cursor: pointer;
    border-radius: 6px; margin-bottom: 4px;
    color: #999; font-size: 14px;
    transition: all 0.15s ease;
}
.pl-nav-item:hover {
    background: rgba(255,255,255,0.06);
    color: #ddd;
}
.pl-nav-item.active {
    background: rgba(0,102,204,0.15);
    color: #fff;
}

.f-card-body {
    padding: 20px;
}

/* 表单 */
.f-form .form-group {
    margin-bottom: 16px;
}

.f-form label {
    display: block;
    margin-bottom: 5px;
    font-size: 13px;
    color: #999;
    font-weight: 500;
}

.f-form .form-input {
    width: 100%;
    padding: 10px 14px;
    border-radius: 8px;
    border: 1px solid rgba(255,255,255,0.12);
    background: rgba(255,255,255,0.05);
    color: #e0e0e0;
    font-size: 14px;
    font-family: inherit;
    outline: none;
    transition: border-color 0.2s;
    box-sizing: border-box;
}

.f-form .form-input:focus {
    border-color: #0066cc;
}

.f-form textarea.form-input {
    min-height: 80px;
    resize: vertical;
}

.f-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.f-btn-primary {
    background: linear-gradient(135deg, #0066cc, #0052a3);
    color: #fff;
}
.f-btn-primary:hover { opacity: 0.9; }

.f-btn-danger {
    background: rgba(209,52,56,0.8);
    color: #fff;
}
.f-btn-danger:hover { opacity: 0.9; }

.f-btn-outline {
    background: transparent;
    border: 1px solid rgba(255,255,255,0.15);
    color: #ccc;
}
.f-btn-outline:hover { background: rgba(255,255,255,0.05); color: #fff; }

.f-btn-sm {
    padding: 5px 12px;
    font-size: 12px;
}

/* 表格 */
.f-table {
    width: 100%;
    border-collapse: collapse;
}

.f-table th {
    text-align: left;
    padding: 10px 12px;
    font-size: 12px;
    font-weight: 600;
    color: #888;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.f-table td {
    padding: 10px 12px;
    border-bottom: 1px solid rgba(255,255,255,0.04);
    font-size: 13px;
    color: #ccc;
}

.f-table tbody tr:hover {
    background: rgba(255,255,255,0.03);
}

.f-table a {
    color: #66a3ff;
    text-decoration: none;
}
.f-table a:hover { text-decoration: underline; }

/* 按钮组 */
.f-btn-group {
    display: flex;
    gap: 6px;
}

/* 提示 */
.f-alert {
    padding: 10px 14px;
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 13px;
}

.f-alert-success {
    background: rgba(16,124,16,0.2);
    border: 1px solid rgba(16,124,16,0.3);
    color: #4cd964;
}

.f-alert-error {
    background: rgba(209,52,56,0.2);
    border: 1px solid rgba(209,52,56,0.3);
    color: #ff6b6b;
}

.f-alert-info {
    background: rgba(0,102,204,0.15);
    border: 1px solid rgba(0,102,204,0.25);
    color: #66a3ff;
}

/* ============================================================
   登录/注册页面 - 沉浸式影院风格
   ============================================================ */
.auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 56px);
    padding: 40px 20px;
    position: relative;
}

/* 背景装饰光斑 */
.auth-page::before {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(212,168,83,0.08) 0%, transparent 70%);
    top: -10%;
    left: 50%;
    transform: translateX(-50%);
    pointer-events: none;
}

.auth-box {
    background: linear-gradient(145deg, rgba(26,26,29,0.9), rgba(20,20,22,0.95));
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 20px;
    padding: 44px 40px;
    width: 420px;
    max-width: 95vw;
    position: relative;
    box-shadow:
        0 4px 24px rgba(0,0,0,0.4),
        0 1px 2px rgba(0,0,0,0.2),
        inset 0 1px 0 rgba(255,255,255,0.03);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    animation: authSlideUp 0.5s ease-out;
}

@keyframes authSlideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Logo 图标 */
.auth-logo {
    text-align: center;
    margin-bottom: 16px;
}

.auth-logo svg {
    display: inline-block;
    opacity: 0.85;
}

.auth-box h2 {
    text-align: center;
    margin-bottom: 6px;
    color: #fff;
    font-size: 24px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.auth-box .auth-sub {
    text-align: center;
    color: var(--text-muted, #6b6b75);
    margin-bottom: 28px;
    font-size: 14px;
    letter-spacing: 0.3px;
}

/* 提醒框 */
.auth-alert {
    padding: 12px 16px;
    border-radius: 10px;
    margin-bottom: 18px;
    font-size: 13.5px;
    line-height: 1.5;
    animation: alertIn 0.25s ease;
}

@keyframes alertIn {
    from { opacity: 0; transform: translateY(-6px); }
    to   { opacity: 1; transform: translateY(0); }
}

.auth-alert-error {
    background: rgba(248, 113, 113, 0.12);
    border: 1px solid rgba(248, 113, 113, 0.25);
    color: #fca5a5;
}

.auth-alert-success {
    background: rgba(74, 222, 128, 0.12);
    border: 1px solid rgba(74, 222, 128, 0.25);
    color: #86efac;
}

/* 验证表单样式 - 重置到 auth 页面专用 */
.auth-box .f-form .form-group {
    margin-bottom: 18px;
}

.auth-box .f-form .form-group:last-of-type {
    margin-bottom: 22px;
}

.auth-box .f-form label {
    display: block;
    margin-bottom: 6px;
    font-size: 13px;
    color: #a1a1aa;
    font-weight: 500;
    letter-spacing: 0.2px;
}

.auth-box .f-form .label-optional {
    font-weight: 400;
    color: var(--text-muted, #6b6b75);
    font-size: 12px;
}

.auth-box .f-form .form-input {
    width: 100%;
    padding: 12px 16px;
    border-radius: 10px;
    border: 1px solid rgba(255,255,255,0.1);
    background: rgba(0,0,0,0.25);
    color: #e8e6e3;
    font-size: 15px;
    font-family: var(--font-main);
    outline: none;
    transition: all 0.2s ease;
    box-sizing: border-box;
}

.auth-box .f-form .form-input:hover {
    border-color: rgba(255,255,255,0.18);
    background: rgba(0,0,0,0.35);
}

.auth-box .f-form .form-input:focus {
    border-color: var(--accent, #d4a853);
    background: rgba(0,0,0,0.4);
    box-shadow: 0 0 0 3px rgba(212,168,83,0.1);
}

.auth-box .f-form .form-input::placeholder {
    color: rgba(255,255,255,0.2);
    font-size: 14px;
}

/* 全宽按钮 */
.f-btn-block {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 13px;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.5px;
    border-radius: 10px;
    transition: all 0.25s ease;
}

.f-btn-block:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(212,168,83,0.2);
}

.f-btn-block:active {
    transform: translateY(0);
}

/* 底部链接 */
.auth-box .auth-switch {
    text-align: center;
    margin-top: 20px;
    font-size: 14px;
    color: var(--text-muted, #6b6b75);
}

.auth-box .auth-switch a {
    color: var(--accent, #d4a853);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

.auth-box .auth-switch a:hover {
    color: #e0b95f;
    text-decoration: underline;
}

/* 响应式 */
@media (max-width: 480px) {
    .auth-box {
        padding: 32px 24px;
        border-radius: 16px;
    }
    .auth-box h2 { font-size: 21px; }
}

/* 编辑行 */
.edit-input {
    width: 100%;
    padding: 4px 8px;
    border: 1px solid rgba(255,255,255,0.2);
    background: rgba(0,0,0,0.3);
    color: #fff;
    border-radius: 4px;
    font-size: 13px;
    box-sizing: border-box;
}

/* 响应式 */
@media (max-width: 768px) {
    .frontend-main { padding: 16px 10px; }
    .header-inner nav { gap: 10px; }
    .header-inner nav a { font-size: 12px; }
}