/* ============================================================
   会员系统 UI 样式 - 蜗牛壳AI课堂 (woniubox)
   风格：跟随整站设计系统（浅色默认 + 深色 [data-theme="dark"]）
   复用 main.css 的 CSS 变量（--primary / --bg / --text 等）
   ============================================================ */

/* ---- Auth 页面布局 ---- */
.member-auth-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: calc(var(--header-h) + 28px) 16px 48px;
    background: var(--gradient-hero);
    position: relative;
    box-sizing: border-box;
}
.member-auth-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 70% 50% at 50% -5%,
                color-mix(in srgb, var(--primary) 16%, transparent) 0%, transparent 60%);
    pointer-events: none;
}

.auth-container {
    width: 100%;
    max-width: 460px;
    position: relative;
    z-index: 1;
    /* 空间充足时垂直居中；内容超高（如注册页）溢出时顶部对齐，
       配合 section 的 padding-top 使品牌 logo 永不被固定导航栏遮挡 */
    margin: auto;
}

/* 品牌 */
.auth-brand {
    text-align: center;
    margin-bottom: 28px;
}
.auth-logo {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 1.5rem;
    font-weight: 800;
    text-decoration: none;
    letter-spacing: .5px;
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: var(--primary);
}
.auth-logo .auth-snail { -webkit-text-fill-color: initial; }
.auth-tagline {
    color: var(--text-muted);
    font-size: .8rem;
    margin: 6px 0 0;
    letter-spacing: .12em;
    text-transform: uppercase;
}

/* 卡片 */
.auth-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 36px 40px;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}
.auth-card::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--gradient-brand);
}

.auth-header { margin-bottom: 26px; }
.auth-title  { color: var(--text); font-size: 1.5rem; font-weight: 700; margin: 0 0 6px; }
.auth-subtitle { color: var(--text-secondary); font-size: .875rem; margin: 0; }

/* Auth 图标 */
.auth-icon-wrap {
    display: flex;
    justify-content: center;
    margin-bottom: 16px;
}

/* 表单组 */
.auth-form { display: flex; flex-direction: column; gap: 18px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-label {
    color: var(--text-secondary);
    font-size: .8rem;
    font-weight: 500;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.form-label-link { color: var(--primary); font-size: .8rem; text-decoration: none; }
.form-label-link:hover { color: var(--primary-light); }
.form-hint { color: var(--text-muted); font-weight: 400; }
.required { color: var(--danger); }

/* 输入框 */
.input-wrap { position: relative; }
.input-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 16px; height: 16px;
    color: var(--text-muted);
    pointer-events: none;
}
.form-input {
    width: 100%;
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: .875rem;
    padding: 11px 34px 11px 40px;
    outline: none;
    transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
    box-sizing: border-box;
}
/* 提升权重：覆盖 main.css 里 .form-group input 的 padding 等 */
.auth-form .form-input,
.modal-box .form-input {
    padding: 11px 34px 11px 40px;
    background: var(--bg-soft);
    border: 1px solid var(--border);
    color: var(--text);
    font-size: .875rem;
}
.form-input:focus,
.auth-form .form-input:focus,
.modal-box .form-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 18%, transparent);
    background: var(--bg-card);
}
.form-input::placeholder,
.auth-form .form-input::placeholder,
.modal-box .form-input::placeholder { color: var(--text-muted); }

/* 无左 icon 的 input */
.code-input {
    padding: 14px 16px;
    letter-spacing: 8px;
    text-align: center;
    font-size: 1.3rem;
    font-weight: 700;
    font-family: 'JetBrains Mono', Consolas, monospace;
}

/* 密码显隐按钮 */
.input-eye {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    color: var(--text-muted);
}
.input-eye svg { width: 16px; height: 16px; }
.input-eye:hover { color: var(--text-secondary); }

/* 密码强度 */
.pwd-strength { display: flex; align-items: center; gap: 8px; margin-top: 6px; }
.strength-bar { display: flex; gap: 4px; flex: 1; }
.bar-seg { height: 4px; flex: 1; border-radius: 2px; background: var(--border); transition: background .3s; }
.strength-label { font-size: .72rem; min-width: 40px; text-align: right; }

/* 提交按钮 */
.btn-auth {
    width: 100%;
    background: var(--gradient-brand);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    padding: 12px;
    font-size: .925rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: opacity var(--transition), transform .1s;
    margin-top: 4px;
    box-shadow: var(--shadow-glow);
}
.btn-auth:hover:not(:disabled) { opacity: .92; transform: translateY(-1px); }
.btn-auth:disabled { opacity: .6; cursor: not-allowed; transform: none; }
.btn-loading { display: flex; align-items: center; gap: 6px; }

/* 旋转动画 */
@keyframes spin360 { to { transform: rotate(360deg); } }
.spin { animation: spin360 .8s linear infinite; width: 16px; height: 16px; }

/* 反馈消息 */
.form-feedback {
    font-size: .825rem;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    text-align: center;
}
.feedback-success { background: var(--success-bg); color: var(--success); border: 1px solid color-mix(in srgb, var(--success) 25%, transparent); }
.feedback-error   { background: var(--danger-bg);  color: var(--danger);  border: 1px solid color-mix(in srgb, var(--danger) 25%, transparent); }

/* 切换登录/注册 */
.auth-switch { text-align: center; color: var(--text-secondary); font-size: .85rem; margin: 20px 0 0; }
.auth-switch-link { color: var(--primary); text-decoration: none; font-weight: 500; }
.auth-switch-link:hover { color: var(--primary-light); }
.auth-terms { font-size: .75rem; color: var(--text-muted); text-align: center; }
.auth-terms a { color: var(--primary); text-decoration: none; }

/* 重发行 */
.resend-row { display: flex; align-items: center; gap: 8px; justify-content: center; margin-top: 16px; }
.resend-tip { color: var(--text-secondary); font-size: .825rem; }
.resend-btn { background: none; border: none; color: var(--primary); cursor: pointer; font-size: .825rem; font-weight: 500; padding: 0; }
.resend-btn:hover { color: var(--primary-light); }
.resend-countdown { color: var(--text-muted); font-size: .8rem; }

/* 会员等级徽章行 */
.plan-badge-row {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 20px;
    flex-wrap: wrap;
    justify-content: center;
}
.plan-badge {
    padding: 3px 10px;
    border-radius: 20px;
    font-size: .7rem;
    font-weight: 600;
    letter-spacing: .05em;
}
.plan-badge.free { background: color-mix(in srgb, var(--text-muted) 14%, transparent); color: var(--text-secondary); border: 1px solid color-mix(in srgb, var(--text-muted) 28%, transparent); }
.plan-badge.pro  { background: color-mix(in srgb, var(--primary) 12%, transparent);  color: var(--primary-light); border: 1px solid color-mix(in srgb, var(--primary) 28%, transparent); }
.plan-badge.biz  { background: color-mix(in srgb, var(--accent) 12%, transparent);   color: var(--accent); border: 1px solid color-mix(in srgb, var(--accent) 28%, transparent); }
.plan-arrow { color: var(--text-muted); font-size: .7rem; }

/* 忘记密码弹窗 */
.modal-overlay {
    position: fixed; inset: 0;
    background: rgba(2,6,23,.6);
    display: flex; align-items: center; justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
}
.modal-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    width: 90%;
    max-width: 400px;
    box-shadow: var(--shadow-lg);
}
.modal-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.modal-head h3 { color: var(--text); font-size: 1.1rem; margin: 0; }
.modal-close {
    background: none; border: none; color: var(--text-muted); cursor: pointer;
    font-size: 1.4rem; line-height: 1; padding: 4px;
}
.modal-close:hover { color: var(--text); }
.modal-tip { color: var(--text-secondary); font-size: .85rem; margin: 0 0 16px; }

/* ============================================================
   Dashboard 样式
   ============================================================ */
.member-dashboard-section {
    padding: 48px 0 80px;
    min-height: calc(100vh - var(--header-h));
    background: var(--bg-alt);
}

.dashboard-layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 28px;
    align-items: start;
    margin-top: 32px;
}

/* 侧边栏 */
.dashboard-sidebar {
    position: sticky;
    top: calc(var(--header-h) + 12px);
}
.user-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 12px;
    text-align: center;
    box-shadow: var(--shadow-sm);
}
.user-avatar {
    position: relative;
    display: inline-block;
    margin-bottom: 12px;
}
.user-avatar img,
.avatar-placeholder {
    width: 64px; height: 64px;
    border-radius: 50%;
    object-fit: cover;
}
.avatar-placeholder {
    background: var(--gradient-brand);
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 1.5rem; font-weight: 700;
}
.plan-dot {
    position: absolute;
    bottom: 2px; right: 2px;
    width: 14px; height: 14px;
    border-radius: 50%;
    border: 2px solid var(--bg-card);
}
.plan-dot.plan-free { background: var(--text-muted); }
.plan-dot.plan-pro  { background: var(--primary); }
.plan-dot.plan-biz  { background: var(--accent); }

.user-name  { color: var(--text); font-weight: 600; font-size: .95rem; }
.user-email { color: var(--text-muted); font-size: .78rem; margin: 2px 0 8px; word-break: break-all; }
.plan-tag {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: .7rem;
    font-weight: 600;
}
.plan-tag.plan-free { background: color-mix(in srgb, var(--text-muted) 14%, transparent); color: var(--text-secondary); }
.plan-tag.plan-pro  { background: color-mix(in srgb, var(--primary) 12%, transparent); color: var(--primary-light); }
.plan-tag.plan-biz  { background: color-mix(in srgb, var(--accent) 12%, transparent);  color: var(--accent); }

.sidebar-nav { display: flex; flex-direction: column; gap: 4px; }
.sidebar-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: .875rem;
    transition: background var(--transition), color var(--transition);
}
.sidebar-link svg { width: 16px; height: 16px; flex-shrink: 0; }
.sidebar-link:hover, .sidebar-link.active {
    background: color-mix(in srgb, var(--primary) 10%, transparent);
    color: var(--primary-light);
}
.sidebar-link-danger:hover { background: var(--danger-bg); color: var(--danger); }

/* 主内容区域 */
.dashboard-main { display: flex; flex-direction: column; gap: 20px; }
.dashboard-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: var(--shadow-sm);
}
.dashboard-card-title { color: var(--text-muted); font-size: .78rem; font-weight: 600; text-transform: uppercase; letter-spacing: .1em; margin: 0 0 16px; }

/* 会员状态卡片 */
.plan-status-card { border-color: color-mix(in srgb, var(--primary) 22%, transparent); }
.plan-status-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; margin-bottom: 20px; }
.plan-name { font-size: 1.4rem; font-weight: 700; margin: 4px 0 6px; color: var(--text); }
.plan-name.plan-free { color: var(--text-secondary); }
.plan-name.plan-pro  { color: var(--primary-light); }
.plan-name.plan-biz  { color: var(--accent); }
.plan-expire { font-size: .825rem; color: var(--text-muted); margin: 0; }
.plan-forever { color: var(--success) !important; }
.expire-warning { color: var(--warning); }

.plan-features { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; padding-top: 16px; border-top: 1px solid var(--border-light); }
.feature-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: .825rem;
    color: var(--text-muted);
}
.feature-item svg { width: 14px; height: 14px; flex-shrink: 0; }
.feature-item.active { color: var(--text-secondary); }
.feature-item.active svg { color: var(--success); }

/* 账号信息网格 */
.info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.info-item { display: flex; flex-direction: column; gap: 3px; }
.info-label { color: var(--text-muted); font-size: .75rem; }
.info-value { color: var(--text-secondary); font-size: .875rem; display: flex; align-items: center; gap: 6px; }
.badge-verified   { background: var(--success-bg); color: var(--success); border: 1px solid color-mix(in srgb, var(--success) 22%, transparent); border-radius: 4px; padding: 1px 6px; font-size: .7rem; }
.badge-unverified { background: var(--danger-bg);  color: var(--danger);  border: 1px solid color-mix(in srgb, var(--danger) 22%, transparent);  border-radius: 4px; padding: 1px 6px; font-size: .7rem; }

/* 响应式 */
@media (max-width: 768px) {
    .auth-card { padding: 28px 22px; }
    .dashboard-layout { grid-template-columns: 1fr; }
    .dashboard-sidebar { position: static; }
    .plan-status-header { flex-direction: column; }
    .plan-features { grid-template-columns: 1fr; }
    .info-grid { grid-template-columns: 1fr; }
}