/* ===== 学员管理系统 - 后台管理样式 ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
    background: #f2f4fa;
    color: #2c3e50;
    font-size: 14px;
}

/* ===== 后台布局（侧边栏 + 顶部栏） ===== */
.admin-body { background: #eef1f7; }

.layout { display: flex; min-height: 100vh; }

/* ---- 侧边栏 ---- */
.sidebar {
    width: 236px;
    background: linear-gradient(180deg, #17233c 0%, #1e2b4d 100%);
    color: #c3cde0;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; bottom: 0; left: 0;
    box-shadow: 2px 0 16px rgba(20,30,60,.16);
    z-index: 50;
}
.brand {
    display: flex; align-items: center; gap: 12px;
    padding: 22px 20px;
    border-bottom: 1px solid rgba(255,255,255,.07);
}
.brand-logo {
    width: 42px; height: 42px;
    background: linear-gradient(135deg, #4f6ef7, #7b5cf0);
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 22px;
    box-shadow: 0 4px 12px rgba(79,110,247,.45);
}
.brand-txt { display: flex; flex-direction: column; line-height: 1.2; }
.brand-text { font-size: 15px; font-weight: 700; color: #fff; letter-spacing: .5px; }
.brand-sub { font-size: 11px; color: #7d8db3; margin-top: 3px; }

.nav { flex: 1; padding: 16px 0 8px; overflow-y: auto; }
.nav-section {
    padding: 14px 22px 8px;
    font-size: 11px; color: #5f6f96;
    letter-spacing: 2px; text-transform: uppercase;
}
.nav-link {
    display: flex; align-items: center; gap: 12px;
    margin: 3px 12px;
    padding: 11px 14px;
    color: #aeb9d4;
    text-decoration: none; font-size: 14px;
    border-radius: 10px;
    transition: all .18s;
    border-left: 3px solid transparent;
}
.nav-link:hover { background: rgba(255,255,255,.07); color: #fff; transform: translateX(2px); }
.nav-link.active {
    background: linear-gradient(90deg, rgba(79,110,247,.25), rgba(123,92,240,.15));
    color: #fff; font-weight: 600;
    border-left-color: #4f6ef7;
}
.nav-ico { width: 22px; text-align: center; font-size: 15px; }

/* 侧边栏底部用户卡 */
.sidebar-user {
    display: flex; align-items: center; gap: 10px;
    margin: 0 12px 10px;
    padding: 12px 12px;
    background: rgba(255,255,255,.06);
    border-radius: 12px;
}
.suser-avatar {
    width: 34px; height: 34px; border-radius: 50%;
    background: linear-gradient(135deg, #4f6ef7, #7b5cf0);
    color: #fff; display: inline-flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 14px;
}
.suser-info { display: flex; flex-direction: column; line-height: 1.2; }
.suser-name { font-size: 13px; font-weight: 600; color: #fff; }
.suser-role { font-size: 11px; color: #7d8db3; margin-top: 2px; }

.sidebar-foot { border-top: 1px solid rgba(255,255,255,.07); padding: 8px 0; }

/* ---- 主内容区 ---- */
.main { flex: 1; margin-left: 236px; display: flex; flex-direction: column; min-height: 100vh; }

.topbar {
    display: flex; align-items: center; justify-content: space-between;
    padding: 12px 28px;
    background: rgba(255,255,255,.92);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid #e6eaf2;
    box-shadow: 0 1px 6px rgba(30,40,80,.05);
    position: sticky; top: 0; z-index: 40;
}
.topbar-left { display: flex; align-items: center; gap: 16px; }
.topbar-title { font-size: 18px; font-weight: 700; color: #1f2a44; position: relative; padding-left: 14px; }
.topbar-title::before {
    content: ""; position: absolute; left: 0; top: 50%; transform: translateY(-50%);
    width: 4px; height: 18px; border-radius: 4px;
    background: linear-gradient(180deg, #4f6ef7, #7b5cf0);
}
.btn-back {
    display: inline-flex; align-items: center; gap: 5px;
    padding: 6px 12px; font-size: 13px;
    color: #6b7ba0; text-decoration: none;
    border: 1px solid #d5dcef; border-radius: 8px;
    transition: all .15s;
}
.btn-back:hover { background: #f0f3fc; color: #4f6ef7; border-color: #4f6ef7; }
.nav-toggle {
    display: none;
    width: 38px; height: 38px; border: 1px solid #d5dcef; border-radius: 9px;
    background: #fff; color: #1f2a44; font-size: 18px; line-height: 1;
    cursor: pointer; align-items: center; justify-content: center;
    transition: all .15s;
}
.nav-toggle:hover { background: #f0f3fc; color: #4f6ef7; }
.nav-mask {
    display: none;
    position: fixed; inset: 0; z-index: 95;
    background: rgba(15,23,42,.45);
    opacity: 0; visibility: hidden;
    transition: opacity .25s;
}
/* 手机端底部导航（默认桌面隐藏） */
.m-navbar {
    display: none;
    position: fixed; bottom: 0; left: 0; right: 0; height: 58px;
    background: #fff; border-top: 1px solid #e6eaf3;
    box-shadow: 0 -2px 10px rgba(30,40,80,.06);
    z-index: 90;
    align-items: stretch;
}
.m-nav-item {
    flex: 1;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    gap: 1px; color: #8a97b5; text-decoration: none; font-size: 11px;
}
.m-nav-item:active { background: #f0f3fc; }
.m-nav-ico { font-size: 20px; line-height: 1; }
.m-nav-item.active { color: #4f6ef7; font-weight: 700; }
.m-nav-item.m-nav-btn {
    border: none; background: none; cursor: pointer; font-family: inherit;
    padding: 0; outline: none;
}
/* 手机端弹层抽屉（底部导航筛选菜单） */
.m-mask {
    display: none;
    position: fixed; inset: 0; z-index: 95;
    background: rgba(15,23,42,.45);
    opacity: 0; visibility: hidden;
    transition: opacity .25s;
}
.m-drawer {
    display: block;
    position: fixed; top: 0; bottom: 0; left: 0; width: 236px; z-index: 100;
    background: #fff;
    transform: translateX(-100%);
    transition: transform .28s ease;
    box-shadow: 4px 0 18px rgba(30,40,80,.18);
    overflow-y: auto;
}
.m-mask.show { opacity: 1; visibility: visible; }
.m-drawer.open { transform: translateX(0); }
.m-drawer-title {
    padding: 18px 16px 12px; font-size: 15px; font-weight: 700;
    color: #1f2a44; border-bottom: 1px solid #eef1f8;
}
.m-drawer-list { list-style: none; padding: 6px 0; }
.m-drawer-list li {
    padding: 12px 16px; font-size: 14px; color: #3d4c6b;
    border-bottom: 1px solid #f5f7fc; cursor: pointer;
}
.m-drawer-list li:active { background: #f0f3fc; }
.m-drawer-list li.active { color: #4f6ef7; font-weight: 700; background: #eef2ff; }
.topbar-user { display: flex; align-items: center; gap: 12px; }
.user-avatar {
    width: 36px; height: 36px; border-radius: 50%;
    background: linear-gradient(135deg, #4f6ef7, #7b5cf0);
    color: #fff; display: inline-flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 15px;
    box-shadow: 0 2px 8px rgba(79,110,247,.4);
}
.user-name { color: #374151; font-weight: 600; }
.btn-logout { font-size: 13px; padding: 6px 12px; }

.content { flex: 1; padding: 26px 28px; }
.m-adm-list { display: none; } /* 手机端专用学员卡片，桌面隐藏 */
.footer {
    padding: 14px 28px; color: #9aa7c2; font-size: 12px;
    border-top: 1px solid #e6eaf2; background: #fff;
}

/* ===== 按钮 ===== */
.btn {
    display: inline-block; padding: 9px 16px;
    border: 1px solid transparent; border-radius: 8px;
    font-size: 14px; cursor: pointer; text-decoration: none;
    transition: all .15s;
}
.btn-primary { background: linear-gradient(135deg, #4f6ef7, #6a54f0); color: #fff; box-shadow: 0 3px 10px rgba(79,110,247,.3); }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 5px 14px rgba(79,110,247,.4); }
.btn-secondary { background: #e8ecf5; color: #33405e; }
.btn-secondary:hover { background: #dce2ef; }
.btn-plain { background: transparent; color: #6b7ba0; border-color: #d5dcef; }
.btn-plain:hover { background: #f0f3fc; }
.btn-small { padding: 5px 11px; font-size: 13px; border-radius: 7px; }
.btn-edit { background: #eef2ff; color: #4f6ef7; }
.btn-edit:hover { background: #e0e7ff; }
.btn-del { background: #feecec; color: #dc2626; }
.btn-del:hover { background: #fcdcdc; }

.filter-right { margin-left: auto; }

/* ===== 筛选栏 ===== */
.filter-bar {
    display: flex; flex-wrap: wrap; gap: 10px; align-items: center;
    background: #fff; padding: 16px; border-radius: 14px;
    box-shadow: 0 4px 16px rgba(30,40,80,.06);
    margin-bottom: 16px;
}
.filter-bar input[type="text"] {
    padding: 9px 12px; border: 1px solid #d5dcef; border-radius: 8px;
    width: 240px; font-size: 14px; transition: border-color .2s;
}
.filter-bar input[type="text"]:focus { outline: none; border-color: #4f6ef7; box-shadow: 0 0 0 3px rgba(79,110,247,.12); }
.filter-bar select {
    padding: 9px 10px; border: 1px solid #d5dcef; border-radius: 8px;
    font-size: 14px; background: #fff; color: #2c3e50;
}

/* ===== 统计概览卡片 ===== */
.admin-stats {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 14px;
    margin-bottom: 18px;
}
.astat {
    background: #fff;
    border-radius: 14px;
    padding: 16px 14px;
    display: flex; align-items: center; gap: 12px;
    box-shadow: 0 4px 16px rgba(30,40,80,.06);
    border-top: 3px solid #4f6ef7;
    transition: transform .15s, box-shadow .15s;
    text-decoration: none;
    color: inherit;
}
.astat:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(30,40,80,.12); text-decoration: none; color: inherit; }
.astat:active { transform: translateY(0); }
.astat-ico {
    width: 42px; height: 42px; border-radius: 12px;
    background: #eef2ff; display: flex; align-items: center; justify-content: center;
    font-size: 20px; flex-shrink: 0;
}
.astat-info { display: flex; flex-direction: column; line-height: 1.2; }
.astat-num { font-size: 22px; font-weight: 800; color: #1f2a44; }
.astat-label { font-size: 12px; color: #6b7ba0; margin-top: 2px; }
.astat-total { border-top-color: #f59e0b; }
.astat-total .astat-ico { background: #fef3c7; }
.astat-blue { border-top-color: #4f6ef7; }
.astat-cyan { border-top-color: #06b6d4; }
.astat-cyan .astat-ico { background: #cffafe; }
.astat-purple { border-top-color: #8b5cf6; }
.astat-purple .astat-ico { background: #ede9fe; }
.astat-green { border-top-color: #10b981; }
.astat-green .astat-ico { background: #d1fae5; }
.astat-red { border-top-color: #ef4444; }
.astat-red .astat-ico { background: #fee2e2; }

/* ===== 统计（旧） ===== */
.stat { margin: 4px 2px 14px; color: #6b7ba0; }
.stat strong { color: #4f6ef7; font-size: 16px; }

/* ===== 表格卡片 ===== */
.table-card {
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 4px 16px rgba(30,40,80,.06);
    overflow: hidden;
}
.table-head {
    display: flex; align-items: baseline; justify-content: space-between;
    padding: 16px 18px 12px;
    border-bottom: 1px solid #eef1f8;
}
.table-head-t { font-size: 16px; font-weight: 700; color: #1f2a44; }
.table-head-sub { font-size: 13px; color: #6b7ba0; }
.table-head-sub strong { color: #4f6ef7; }

/* ===== 表格 ===== */
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { padding: 12px 14px; text-align: left; border-bottom: 1px solid #f0f2f9; white-space: nowrap; }
.table th { background: #f8faff; color: #4b5b7a; font-weight: 600; font-size: 13px; }
.table tbody tr { transition: background .15s; }
.table tbody tr:hover { background: #f6f8ff; }
.table .empty { text-align: center; color: #9aa7c2; padding: 40px 0; }
.actions { display: flex; gap: 6px; }
.t-id { color: #9aa7c2; font-size: 13px; }
.t-name { font-weight: 700; color: #1f2a44; }
.t-muted { color: #6b7ba0; }
.tag-class {
    display: inline-block; padding: 2px 9px; border-radius: 6px;
    background: #eef2ff; color: #4f6ef7; font-weight: 600; font-size: 12px;
}

/* ===== 状态标签 ===== */
.badge { display: inline-block; padding: 3px 11px; border-radius: 99px; font-size: 12px; font-weight: 600; }
.badge-blue { background: #e0ecff; color: #2b6bf3; }
.badge-green { background: #d8f7e9; color: #0e9f6e; }
.badge-red { background: #fee2e2; color: #dc2626; }

/* ===== 分页 ===== */
.pagination { display: flex; gap: 14px; align-items: center; margin-top: 18px; justify-content: flex-end; color: #6b7ba0; }
.pagination a { color: #4f6ef7; text-decoration: none; padding: 6px 12px; border: 1px solid #d5dcef; border-radius: 8px; background: #fff; }
.pagination a:hover { background: #f0f3fc; }

/* ===== 提示 ===== */
.alert { padding: 13px 16px; border-radius: 10px; margin-bottom: 16px; }
.alert-error { background: #feecec; color: #b91c1c; border: 1px solid #fcdcdc; }

/* ===== 表单 ===== */
.form-card { background: #fff; padding: 26px; border-radius: 14px; box-shadow: 0 4px 16px rgba(30,40,80,.06); }
.form-narrow { max-width: 720px; }
.form-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.form-grid-2 { grid-template-columns: repeat(2, 1fr); }
.form-item { display: flex; flex-direction: column; }
.form-item label { margin-bottom: 7px; font-weight: 600; color: #374151; }
.form-item label em { color: #dc2626; font-style: normal; }
.form-item input,
.form-item select {
    padding: 10px 12px; border: 1px solid #d5dcef; border-radius: 8px;
    font-size: 14px; background: #fff; transition: all .2s;
}
.form-item input:focus,
.form-item select:focus { outline: none; border-color: #4f6ef7; box-shadow: 0 0 0 3px rgba(79,110,247,.12); }
.form-actions { margin-top: 26px; display: flex; gap: 10px; }
.form-hint { margin-top: 6px; font-size: 12px; color: #9aa7c2; line-height: 1.5; }

/* ===== 工具条 ===== */
.panel-toolbar {
    display: flex; align-items: center; justify-content: space-between;
    background: #fff; padding: 16px 18px; border-radius: 14px;
    box-shadow: 0 4px 16px rgba(30,40,80,.06);
    margin-bottom: 16px;
}
.panel-toolbar-t { font-size: 16px; font-weight: 700; color: #1f2a44; }

/* ===== 提示扩展 ===== */
.alert-success { background: #d8f7e9; color: #0e9f6e; border: 1px solid #b7efd4; }
.alert-info { background: #e0ecff; color: #2b6bf3; border: 1px solid #c7daff; }

/* ===== 选项管理 ===== */
.inline-form { display: inline-flex; align-items: center; gap: 6px; }
.inline-form input[type="text"] {
    padding: 6px 10px; border: 1px solid #d5dcef; border-radius: 7px;
    font-size: 13px; width: 180px;
}
.inline-form input[type="text"]:focus { outline: none; border-color: #4f6ef7; }
.inline-edit input[type="text"] { width: 220px; }
.inline-form .btn[disabled] { opacity: .4; cursor: not-allowed; }
.inline-form .actions { display: inline-flex; gap: 4px; }

/* ===== 每页行数 ===== */
.limit-label { display: inline-flex; align-items: center; gap: 5px; color: #6b7ba0; font-size: 13px; }
.limit-input {
    width: 62px; padding: 6px 8px; border: 1px solid #d5dcef; border-radius: 7px;
    font-size: 13px; color: #33405e; text-align: center;
}
.limit-input:focus { outline: none; border-color: #4f6ef7; }
.limit-input::-webkit-inner-spin-button { opacity: 1; }

/* ===== 状态标签扩展 ===== */
.badge-gold { background: #fef3c7; color: #b45309; }
.badge-cyan { background: #cffafe; color: #0e7490; }

/* ===== 登录页 ===== */
.login-body {
    display: flex; align-items: center; justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #1c2a44 0%, #3d58d6 60%, #7b5cf0 100%);
    position: relative;
    overflow: hidden;
}
.login-body::before, .login-body::after {
    content: ""; position: absolute; border-radius: 50%;
    background: rgba(255,255,255,.06);
}
.login-body::before { width: 340px; height: 340px; top: -80px; left: -80px; }
.login-body::after { width: 260px; height: 260px; bottom: -70px; right: -60px; }

.login-wrap { width: 100%; max-width: 400px; padding: 0 16px; position: relative; z-index: 2; }
.login-card {
    background: rgba(255,255,255,.97);
    padding: 36px 32px;
    border-radius: 18px;
    box-shadow: 0 20px 50px rgba(10,20,40,.35);
    backdrop-filter: blur(6px);
}
.login-brand { text-align: center; margin-bottom: 24px; }
.login-brand .logo-circle {
    width: 64px; height: 64px; margin: 0 auto 12px;
    background: linear-gradient(135deg, #4f6ef7, #7b5cf0);
    border-radius: 18px; display: flex; align-items: center; justify-content: center;
    font-size: 32px; box-shadow: 0 8px 20px rgba(79,110,247,.4);
}
.login-brand h1 { font-size: 22px; color: #1f2a44; }
.login-brand p { color: #9aa7c2; font-size: 13px; margin-top: 5px; }
.login-card .form-item { margin-bottom: 18px; }
.login-card .form-item input { padding: 12px 14px; }
.btn-block { width: 100%; padding: 12px; font-size: 15px; font-weight: 600; margin-top: 6px; }
.login-foot { text-align: center; margin-top: 18px; font-size: 12px; color: #9aa7c2; }

/* ===== 响应式（全界面） ===== */

/* 表格横向滚动容器（宽表格在小屏不挤压，可左右滑动） */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.table { min-width: 640px; }

@media (max-width: 1100px) {
    .admin-stats { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 900px) {
    .form-grid { grid-template-columns: repeat(2, 1fr); }
    .form-grid-2 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
    /* 侧边栏抽屉化：默认隐藏，点击汉堡滑出 */
    .sidebar {
        position: fixed; top: 0; left: 0; bottom: 0; width: 236px;
        transform: translateX(-100%);
        transition: transform .28s ease;
        z-index: 100;
        box-shadow: 4px 0 18px rgba(30,40,80,.18);
        overflow-y: auto;
    }
    body.nav-open .sidebar { transform: translateX(0); }
    .nav-toggle { display: inline-flex; }
    .nav-mask { display: block; }
    body.nav-open .nav-mask { opacity: 1; visibility: visible; }
    /* 抽屉式侧边栏：显示图标+文字（236px 宽足够） */
    .brand-txt, .brand-sub, .nav-section, .nav-link span:not(.nav-ico) { display: flex; }
    .brand { justify-content: flex-start; padding: 18px 16px; gap: 10px; }
    .nav-link { justify-content: flex-start; padding: 11px 16px; margin: 3px 8px; }
    .nav-link .nav-ico { width: 22px; text-align: center; }
    .sidebar-user { justify-content: flex-start; padding: 8px 16px; gap: 10px; }
    .suser-info { display: block; }
    .sidebar-foot .nav-link { justify-content: flex-start; padding: 11px 16px; }
    .main { margin-left: 0; }
    .content { padding: 16px; }
    .form-grid, .form-grid-2 { grid-template-columns: 1fr; }
    .form-narrow { max-width: 100%; }
    .filter-bar input[type="text"] { width: 100%; flex: 1 1 100%; }
    .filter-bar select { flex: 1 1 auto; }
    .table { font-size: 12px; min-width: 0; }
    /* 手机端：隐藏桌面表格，改用专用卡片（按图片设计） */
    .table-wrap { display: none; }
    .m-adm-list { display: block; }
    .m-adm-card {
        background: #fff;
        border: 1px solid #e6eaf2;
        border-radius: 12px;
        padding: 12px 14px;
        margin-bottom: 10px;
        box-shadow: 0 2px 8px rgba(30,40,80,.05);
        border-left: 3px solid #4f6ef7;
    }
    .m-adm-head { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
    .m-adm-name { font-size: 16px; font-weight: 700; color: #1f2a44; }
    .m-adm-gender { font-size: 11px; padding: 1px 7px; border-radius: 8px; }
    .m-adm-g-m { background: #e3ecff; color: #3b5bdb; }
    .m-adm-g-f { background: #ffe3ec; color: #d6336c; }
    .m-adm-status { margin-left: auto; font-size: 11px; padding: 2px 9px; border-radius: 10px; font-weight: 600; }
    .m-adm-line { font-size: 12px; color: #3d4c6b; margin-top: 3px; display: flex; flex-wrap: wrap; }
    .m-adm-line .k { color: #8a97b5; margin-right: 2px; flex-shrink: 0; }
    .m-adm-toggle { margin-left: auto; font-size: 12px; color: #8a97b5; transition: transform .2s; }
    .m-adm-card.open .m-adm-toggle { transform: rotate(180deg); }
    .m-adm-more { display: none; border-top: 1px dashed #eef1f8; margin-top: 8px; padding-top: 8px; }
    .m-adm-card.open .m-adm-more { display: block; }
    /* 卡片左滑露出操作 */
    .m-adm-swipe {
        position: relative;
        overflow: hidden;
        border-radius: 12px;
        margin-bottom: 10px;
        box-shadow: 0 2px 8px rgba(30,40,80,.05);
    }
    .m-adm-swipe-actions {
        position: absolute;
        top: 0; right: 0; bottom: 0;
        width: 128px;
        display: flex;
    }
    .m-adm-btn {
        flex: 1;
        display: flex; align-items: center; justify-content: center;
        color: #fff; text-decoration: none; font-size: 13px; font-weight: 600;
    }
    .m-adm-btn-edit { background: #4f6ef7; }
    .m-adm-btn-del  { background: #ef4444; }
    .m-adm-card {
        position: relative;
        z-index: 1;
        background: #fff;
        border: 1px solid #e6eaf2;
        border-radius: 12px;
        padding: 12px 14px;
        margin-bottom: 0; /* 防止露出底部操作底色 */
        box-shadow: 0 2px 8px rgba(30,40,80,.05);
        border-left: 3px solid #4f6ef7;
        transition: transform .25s ease;
        will-change: transform;
    }
    .m-adm-swipe.open .m-adm-card { transform: translateX(-128px); }
    .m-adm-empty { text-align: center; color: #9aa7c2; padding: 40px 0; font-size: 13px; }
    .m-mask { display: block; }
    .m-navbar .m-nav-item.m-nav-btn { display: flex; }
    .admin-stats { grid-template-columns: repeat(2, 1fr); }
    .topbar { padding: 10px 16px; }
    .topbar-user .user-name { display: none; }
    .btn-back { display: none; }
    .panel-toolbar { flex-wrap: wrap; gap: 10px; }
    .content { padding: 14px 14px 74px; }
    .footer { display: none; }
    /* 启用手机端底部导航 */
    .m-navbar { display: flex; }
    .stat-cards, .dist-row, .list-section { padding-left: 14px; padding-right: 14px; }
}
@media (max-width: 480px) {
    .admin-stats { grid-template-columns: 1fr 1fr; gap: 10px; }
    .astat { padding: 12px 10px; }
    .astat-num { font-size: 18px; }
    .hero-inner { padding: 28px 16px; }
    .hero h1 { font-size: 24px; }
    .header-inner { padding: 12px 14px; }
    .login-card { padding: 28px 20px; }
    .form-card { padding: 18px; }
    .form-actions { flex-direction: column; }
    .form-actions .btn { width: 100%; text-align: center; }
}