/* ========================================
   HY 授权系统 - 全局样式 v3.0
   ======================================== */

:root {
    --c-bg: #f0f2f5;
    --c-surface: #ffffff;
    --c-surface-hover: #f8f9fb;
    --c-sidebar: #111827;
    --c-sidebar-hover: #1f2937;
    --c-sidebar-active: #1e3a5f;
    --c-border: #e5e7eb;
    --c-border-light: #f3f4f6;

    --c-text: #111827;
    --c-text-secondary: #6b7280;
    --c-text-muted: #9ca3af;
    --c-text-sidebar: #9ca3af;
    --c-text-sidebar-active: #e5e7eb;

    --c-primary: #3b82f6;
    --c-primary-light: #eff6ff;
    --c-primary-border: #bfdbfe;
    --c-primary-dark: #2563eb;

    --c-success: #10b981;
    --c-success-light: #ecfdf5;
    --c-warning: #f59e0b;
    --c-warning-light: #fffbeb;
    --c-danger: #ef4444;
    --c-danger-light: #fef2f2;
    --c-info: #6366f1;
    --c-info-light: #eef2ff;

    --radius: 10px;
    --radius-sm: 6px;
    --radius-lg: 14px;
    --radius-xl: 18px;

    --shadow-xs: 0 1px 2px rgba(0,0,0,.04);
    --shadow-sm: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
    --shadow: 0 4px 6px rgba(0,0,0,.04), 0 2px 4px rgba(0,0,0,.03);
    --shadow-md: 0 10px 15px rgba(0,0,0,.05), 0 4px 6px rgba(0,0,0,.04);
    --shadow-lg: 0 20px 40px rgba(0,0,0,.08);

    --transition: .2s ease;
    --transition-slow: .35s cubic-bezier(.4,0,.2,1);
}

/* ========================================
   Reset
   ======================================== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background:var(--c-bg); color:var(--c-text); line-height:1.6;
    -webkit-font-smoothing:antialiased; min-height:100vh;
}
a{color:var(--c-primary);text-decoration:none}
img{max-width:100%}

/* ========================================
   Admin Layout
   ======================================== */
.admin-layout{display:flex;min-height:100vh}
.admin-sidebar{
    width:230px; flex-shrink:0; background:var(--c-sidebar);
    display:flex;flex-direction:column; position:fixed; top:0;left:0;bottom:0;z-index:100;
    transition:transform var(--transition-slow);
}
.admin-main{flex:1;margin-left:230px;min-width:0}

/* Sidebar Brand */
.sidebar-brand{
    display:flex;align-items:center;gap:12px;padding:22px 20px;
    border-bottom:1px solid rgba(255,255,255,.06);
}
.sidebar-brand .brand-icon{
    width:40px;height:40px;border-radius:10px;
    background:linear-gradient(135deg,var(--c-primary),#8b5cf6);
    display:flex;align-items:center;justify-content:center;
    font-size:20px;color:#fff;flex-shrink:0;
    box-shadow:0 4px 12px rgba(59,130,246,.3);
}
.sidebar-brand .brand-text{font-size:16px;font-weight:700;color:#e5e7eb;line-height:1.2}
.sidebar-brand .brand-sub{font-size:11px;color:var(--c-text-sidebar);font-weight:400}

/* Sidebar Nav */
.sidebar-nav{flex:1;padding:12px 10px;display:flex;flex-direction:column;gap:3px;overflow-y:auto}
.sidebar-nav button{
    display:flex;align-items:center;gap:10px;width:100%;padding:10px 14px;
    border:none;background:none;color:var(--c-text-sidebar);font-size:13px;
    font-weight:500;border-radius:var(--radius-sm);cursor:pointer;
    transition:var(--transition);text-align:left;font-family:inherit;
}
.sidebar-nav button:hover{background:var(--c-sidebar-hover);color:var(--c-text-sidebar-active)}
.sidebar-nav button.active{background:var(--c-sidebar-active);color:#fff}
.sidebar-nav .nav-dot{font-size:8px;margin-right:2px}
.sidebar-nav .nav-count{
    margin-left:auto;font-size:11px;padding:2px 8px;border-radius:10px;
    background:rgba(255,255,255,.1);color:var(--c-text-sidebar);
}
.sidebar-nav button.active .nav-count{background:rgba(255,255,255,.15);color:#fff}

/* Sidebar Footer */
.sidebar-footer{
    padding:14px 20px;border-top:1px solid rgba(255,255,255,.06);
    font-size:11px;color:var(--c-text-sidebar);
}

/* ========================================
   Main Content Area
   ======================================== */
.page-header{
    display:flex;align-items:center;justify-content:space-between;
    padding:20px 28px;gap:16px;flex-wrap:wrap;
    background:var(--c-surface);border-bottom:1px solid var(--c-border);
    position:sticky;top:0;z-index:50;
}
.page-header h1{font-size:20px;font-weight:700}
.page-header .header-actions{display:flex;gap:8px;align-items:center}
.page-content{padding:24px 28px;display:flex;flex-direction:column;gap:20px}

/* ========================================
   Stats Grid
   ======================================== */
.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:14px}
.stat-card{
    background:var(--c-surface);border:1px solid var(--c-border);
    border-radius:var(--radius-lg);padding:20px;position:relative;overflow:hidden;
    transition:var(--transition);cursor:default;
}
.stat-card:hover{box-shadow:var(--shadow-md);transform:translateY(-1px)}
.stat-card .stat-icon{
    width:36px;height:36px;border-radius:8px;display:flex;align-items:center;
    justify-content:center;font-size:16px;margin-bottom:12px;
}
.stat-card .stat-value{font-size:28px;font-weight:700;line-height:1;margin-bottom:4px}
.stat-card .stat-label{font-size:12px;color:var(--c-text-muted);font-weight:500}
.stat-card .stat-trend{font-size:11px;margin-top:6px;font-weight:500}
.stat-card::after{
    content:'';position:absolute;top:0;right:0;width:80px;height:80px;
    border-radius:0 0 0 100%;opacity:.06;transform:translate(20px,-20px);
}
.stat-card.blue .stat-icon{background:var(--c-primary-light);color:var(--c-primary)}
.stat-card.blue .stat-value{color:var(--c-primary)}
.stat-card.blue::after{background:var(--c-primary)}
.stat-card.green .stat-icon{background:var(--c-success-light);color:var(--c-success)}
.stat-card.green .stat-value{color:var(--c-success)}
.stat-card.green::after{background:var(--c-success)}
.stat-card.amber .stat-icon{background:var(--c-warning-light);color:var(--c-warning)}
.stat-card.amber .stat-value{color:var(--c-warning)}
.stat-card.amber::after{background:var(--c-warning)}
.stat-card.red .stat-icon{background:var(--c-danger-light);color:var(--c-danger)}
.stat-card.red .stat-value{color:var(--c-danger)}
.stat-card.red::after{background:var(--c-danger)}
.stat-card.purple .stat-icon{background:var(--c-info-light);color:var(--c-info)}
.stat-card.purple .stat-value{color:var(--c-info)}
.stat-card.purple::after{background:var(--c-info)}

/* ========================================
   Card
   ======================================== */
.card{
    background:var(--c-surface);border:1px solid var(--c-border);
    border-radius:var(--radius-lg);overflow:hidden;transition:var(--transition);
}
.card-header{
    display:flex;align-items:center;justify-content:space-between;
    padding:16px 20px;border-bottom:1px solid var(--c-border-light);
    gap:12px;flex-wrap:wrap;
}
.card-title{font-size:15px;font-weight:600;display:flex;align-items:center;gap:8px}
.card-title .dot{width:8px;height:8px;border-radius:50%;background:var(--c-primary);flex-shrink:0}
.card-body{padding:20px}
.card-footer{padding:14px 20px;border-top:1px solid var(--c-border-light);background:var(--c-surface-hover)}

/* ========================================
   Forms
   ======================================== */
textarea,input[type="text"],input[type="search"]{
    width:100%;padding:11px 14px;background:var(--c-bg);border:1.5px solid var(--c-border);
    border-radius:var(--radius);color:var(--c-text);font-size:13px;
    font-family:'SF Mono','Consolas','Courier New',monospace;
    resize:vertical;transition:var(--transition);outline:none;
}
textarea{min-height:120px;line-height:1.6}
textarea:focus,input[type="text"]:focus,input[type="search"]:focus{
    border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(59,130,246,.12);background:#fff;
}
::placeholder{color:var(--c-text-muted)}

select{
    padding:9px 34px 9px 12px;background:var(--c-surface);border:1.5px solid var(--c-border);
    border-radius:var(--radius-sm);color:var(--c-text);font-size:13px;cursor:pointer;
    appearance:none;background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%236b7280'%3e%3cpath d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position:right 10px center;background-repeat:no-repeat;background-size:15px;
    transition:var(--transition);outline:none;font-weight:500;
}
select:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(59,130,246,.12)}

/* ========================================
   Buttons
   ======================================== */
.btn{
    display:inline-flex;align-items:center;justify-content:center;gap:6px;
    padding:9px 20px;border:none;border-radius:var(--radius);font-size:13px;
    font-weight:600;cursor:pointer;transition:var(--transition);white-space:nowrap;
    font-family:inherit;letter-spacing:.2px;outline:none;
}
.btn:active{transform:scale(.97)}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 2px 8px rgba(59,130,246,.3)}
.btn-primary:hover{background:var(--c-primary-dark);box-shadow:0 4px 14px rgba(59,130,246,.4)}
.btn-success{background:var(--c-success);color:#fff}
.btn-success:hover{background:#059669}
.btn-warning{background:var(--c-warning);color:#fff}
.btn-warning:hover{background:#d97706}
.btn-danger{background:var(--c-danger);color:#fff}
.btn-danger:hover{background:#dc2626}
.btn-ghost{background:transparent;color:var(--c-text-secondary);border:1.5px solid var(--c-border)}
.btn-ghost:hover{background:var(--c-surface-hover);border-color:var(--c-primary);color:var(--c-primary)}
.btn-sm{padding:5px 12px;font-size:12px;border-radius:var(--radius-sm)}
.btn-xs{padding:3px 9px;font-size:11px;border-radius:5px}
.btn-lg{padding:13px 28px;font-size:15px;width:100%}
.btn-icon{width:34px;height:34px;padding:0;border-radius:var(--radius-sm)}
.btn-group{display:flex;gap:8px;flex-wrap:wrap;align-items:center}

/* ========================================
   Table
   ======================================== */
.table-wrap{overflow-x:auto;border-radius:var(--radius)}
table{width:100%;border-collapse:collapse;font-size:13px}
thead{background:var(--c-bg)}
th{
    text-align:left;padding:12px 14px;color:var(--c-text-secondary);
    font-weight:600;font-size:11px;letter-spacing:.4px;border-bottom:1px solid var(--c-border);
    white-space:nowrap;text-transform:uppercase;
}
td{padding:11px 14px;border-bottom:1px solid var(--c-border-light);white-space:nowrap}
tbody tr{transition:var(--transition)}
tbody tr:hover{background:var(--c-primary-light)}
tbody tr:last-child td{border-bottom:none}
.empty-row td{text-align:center;color:var(--c-text-muted);padding:36px 14px!important;font-size:13px}

/* ========================================
   Badge
   ======================================== */
.badge{
    display:inline-flex;align-items:center;padding:3px 10px;border-radius:20px;
    font-size:11px;font-weight:600;letter-spacing:.1px;
}
.badge-key{font-family:'SF Mono','Consolas',monospace;font-weight:700;color:var(--c-primary);background:var(--c-primary-light);letter-spacing:1px;cursor:pointer;transition:var(--transition)}
.badge-key:hover{background:var(--c-primary-border)}
.badge-game{color:#0284c7;background:#e0f2fe}
.badge-green{color:var(--c-success);background:var(--c-success-light)}
.badge-amber{color:#d97706;background:var(--c-warning-light)}
.badge-red{color:var(--c-danger);background:var(--c-danger-light)}
.badge-purple{color:var(--c-info);background:var(--c-info-light)}
.badge-muted{color:var(--c-text-muted);background:var(--c-bg)}

/* ========================================
   Alert
   ======================================== */
.alert{
    padding:13px 16px;border-radius:var(--radius);font-size:13px;display:none;font-weight:500;
}
.alert-success{background:var(--c-success-light);border:1px solid rgba(16,185,129,.3);color:#065f46}
.alert-error{background:var(--c-danger-light);border:1px solid rgba(239,68,68,.3);color:#991b1b}
.alert-info{background:var(--c-info-light);border:1px solid rgba(99,102,241,.3);color:#3730a3}
.alert-warning{background:var(--c-warning-light);border:1px solid rgba(245,158,11,.3);color:#92400e}

/* ========================================
   Key Display
   ======================================== */
.key-result{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.key-value{
    font-size:22px;font-weight:700;font-family:'SF Mono','Consolas',monospace;
    letter-spacing:2px;color:var(--c-primary);background:var(--c-primary-light);
    padding:6px 16px;border-radius:var(--radius-sm)
}
.key-meta{font-size:13px;color:var(--c-text-muted)}

/* ========================================
   Batch Results
   ======================================== */
.batch-summary{
    font-size:14px;padding:14px 18px;background:var(--c-bg);
    border-radius:var(--radius);margin-bottom:14px;display:flex;gap:20px;flex-wrap:wrap;font-weight:500
}
.batch-list{display:flex;flex-direction:column;gap:6px;max-height:300px;overflow-y:auto}
.batch-item{
    display:flex;align-items:center;gap:10px;padding:9px 14px;border-radius:var(--radius-sm);
    font-size:13px;border:1px solid transparent
}
.batch-item.success{background:var(--c-success-light);border-color:rgba(16,185,129,.2)}
.batch-item.error{background:var(--c-danger-light);border-color:rgba(239,68,68,.2);color:#991b1b}

/* ========================================
   Verify Toggle
   ======================================== */
.verify-toggle{
    display:inline-flex;align-items:center;gap:8px;cursor:pointer;
    user-select:none;padding:4px 0;transition:var(--transition)
}
.verify-toggle input[type="checkbox"]{position:absolute;opacity:0;width:0;height:0}
.verify-toggle .toggle-slider{
    width:38px;height:21px;background:var(--c-border);border-radius:11px;
    position:relative;transition:var(--transition);flex-shrink:0
}
.verify-toggle .toggle-slider::after{
    content:'';position:absolute;width:17px;height:17px;border-radius:50%;
    background:#fff;top:2px;left:2px;transition:var(--transition);box-shadow:0 1px 3px rgba(0,0,0,.15)
}
.verify-toggle input:checked+.toggle-slider{background:var(--c-success)}
.verify-toggle input:checked+.toggle-slider::after{transform:translateX(17px)}
.verify-toggle .toggle-label{font-size:12px;color:var(--c-text-secondary);font-weight:500;white-space:nowrap}
.verify-toggle input:checked~.toggle-label{color:var(--c-success);font-weight:600}

/* ========================================
   Line Count
   ======================================== */
.line-count{
    font-size:12px;color:var(--c-text-muted);padding:4px 12px;
    background:var(--c-bg);border-radius:20px;border:1px solid var(--c-border);font-weight:500
}

/* ========================================
   Remark Cell
   ======================================== */
.remark-cell{
    cursor:pointer;max-width:100px;overflow:hidden;text-overflow:ellipsis;
    white-space:nowrap;display:inline-block;transition:var(--transition)
}
.remark-cell:hover{color:var(--c-primary)!important}

/* ========================================
   Progress Bar
   ======================================== */
.progress-bar{
    height:4px;background:var(--c-border);border-radius:2px;overflow:hidden;margin-top:4px
}
.progress-bar .progress-fill{height:100%;border-radius:2px;transition:width .3s}
.progress-fill.green{background:var(--c-success)}
.progress-fill.amber{background:var(--c-warning)}
.progress-fill.red{background:var(--c-danger)}

/* ========================================
   Toast
   ======================================== */
.toast{
    position:fixed;bottom:30px;left:50%;transform:translateX(-50%);
    background:var(--c-text);color:#fff;padding:12px 28px;border-radius:30px;
    font-size:13px;font-weight:500;z-index:9999;display:none;
    box-shadow:0 8px 30px rgba(0,0,0,.2);animation:toastIn .3s ease
}
@keyframes toastIn{from{opacity:0;transform:translateX(-50%) translateY(10px)}to{opacity:1;transform:translateX(-50%) translateY(0)}}

/* ========================================
   Loading
   ======================================== */
.loading{display:flex;align-items:center;justify-content:center;gap:8px;padding:20px;color:var(--c-text-muted);font-size:13px}
.loading-spinner{
    width:18px;height:18px;border:2px solid var(--c-border);border-top-color:var(--c-primary);
    border-radius:50%;animation:spin .6s linear infinite;display:inline-block
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ========================================
   Divider
   ======================================== */
hr{border:none;border-top:1px solid var(--c-border);margin:20px 0}

/* ========================================
   Auth Page
   ======================================== */
.auth-page{
    display:flex;align-items:center;justify-content:center;min-height:100vh;
    padding:20px;position:relative;overflow:hidden;
    background:linear-gradient(135deg,#eff6ff 0%,#f0f2f5 30%,#eef2ff 60%,#f8f9fb 100%);
}
.auth-page::before{
    content:'';position:absolute;width:600px;height:600px;border-radius:50%;
    background:radial-gradient(circle,rgba(59,130,246,.06),transparent 70%);
    top:-200px;right:-150px;pointer-events:none;
}
.auth-page::after{
    content:'';position:absolute;width:400px;height:400px;border-radius:50%;
    background:radial-gradient(circle,rgba(99,102,241,.05),transparent 70%);
    bottom:-120px;left:-100px;pointer-events:none;
}
.auth-container{width:100%;max-width:440px;position:relative;z-index:1}

/* Auth Card */
.auth-card{
    background:var(--c-surface);border:1px solid var(--c-border);
    border-radius:var(--radius-xl);padding:36px 32px;box-shadow:var(--shadow-lg);
    text-align:center;
}
.auth-card .auth-logo{
    width:56px;height:56px;margin:0 auto 16px;border-radius:14px;
    background:linear-gradient(135deg,var(--c-primary),#8b5cf6);
    display:flex;align-items:center;justify-content:center;font-size:24px;
    color:#fff;box-shadow:0 6px 20px rgba(59,130,246,.35);
}
.auth-card .auth-title{font-size:20px;font-weight:700;margin-bottom:4px}
.auth-card .auth-subtitle{font-size:13px;color:var(--c-text-muted);margin-bottom:24px}

/* Auth Input */
.auth-input-wrap{position:relative;margin-bottom:14px}
.auth-input-icon{
    position:absolute;left:16px;top:50%;transform:translateY(-50%);
    font-size:16px;color:var(--c-text-muted);pointer-events:none;z-index:1;
}
.auth-input{
    width:100%;padding:13px 16px 13px 44px;background:var(--c-bg);
    border:2px solid var(--c-border);border-radius:var(--radius);font-size:16px;
    font-family:'SF Mono','Consolas',monospace;text-align:center;letter-spacing:2px;
    text-transform:uppercase;color:var(--c-text);transition:var(--transition);outline:none;
}
.auth-input:focus{border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(59,130,246,.1);background:#fff}

/* Auth Button */
.auth-btn{
    width:100%;padding:13px;background:var(--c-primary);color:#fff;border:none;
    border-radius:var(--radius);font-size:15px;font-weight:600;cursor:pointer;
    transition:var(--transition);box-shadow:0 4px 14px rgba(59,130,246,.3);letter-spacing:.3px
}
.auth-btn:hover{background:var(--c-primary-dark);box-shadow:0 6px 20px rgba(59,130,246,.4);transform:translateY(-1px)}
.auth-btn:active{transform:scale(.98)}
.auth-error{font-size:13px;color:var(--c-danger);min-height:22px;text-align:center;margin-top:6px;font-weight:500}

/* Auth Result */
.auth-result-card{
    background:var(--c-surface);border:1px solid var(--c-border);
    border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-md);
    display:none;margin-top:20px;
}
.auth-result-header{text-align:center;margin-bottom:20px}
.auth-result-header .status-icon{
    width:48px;height:48px;border-radius:50%;display:flex;align-items:center;
    justify-content:center;margin:0 auto 10px;font-size:22px;
}
.auth-result-header.success .status-icon{background:var(--c-success-light);color:var(--c-success)}
.auth-result-header.error .status-icon{background:var(--c-danger-light);color:var(--c-danger)}
.status-text{font-size:16px;font-weight:700;margin-bottom:2px}
.status-game{font-size:12px;color:var(--c-text-muted)}

/* Raw Format Box */
.raw-box{
    padding:14px;background:var(--c-primary-light);border:1.5px solid var(--c-primary-border);
    border-radius:var(--radius);margin-bottom:18px;
}
.raw-box .raw-label{font-size:11px;color:var(--c-primary);font-weight:700;letter-spacing:.3px;margin-bottom:8px}
.raw-box pre{
    background:#fff;border:1px solid var(--c-border);border-radius:var(--radius-sm);
    padding:12px;font-size:12px;color:var(--c-text);font-family:'SF Mono','Consolas',monospace;
    word-break:break-all;white-space:pre-wrap;max-height:140px;overflow-y:auto;
    line-height:1.6;margin-bottom:10px
}

/* Data Grid */
.data-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:18px}
.data-grid .data-cell{
    background:var(--c-bg);padding:10px 12px;border-radius:var(--radius-sm);border:1px solid var(--c-border)
}
.data-cell .cell-label{display:block;font-size:10px;color:var(--c-text-muted);font-weight:600;letter-spacing:.3px;margin-bottom:3px;text-transform:uppercase}
.data-cell .cell-value{display:block;font-size:12px;color:var(--c-text);font-family:'SF Mono','Consolas',monospace;word-break:break-all}

/* Info Blocks */
.info-block{
    margin-top:14px;padding:14px;border-radius:var(--radius);border:1px solid;
}
.info-block.blue{background:var(--c-primary-light);border-color:var(--c-primary-border)}
.info-block.green{background:var(--c-success-light);border-color:rgba(16,185,129,.25)}
.info-block.amber{background:var(--c-warning-light);border-color:rgba(245,158,11,.25)}
.info-block .info-title{
    font-size:12px;font-weight:700;margin-bottom:8px;display:flex;align-items:center;gap:6px
}
.info-block.blue .info-title{color:var(--c-primary)}
.info-block.green .info-title{color:var(--c-success)}
.info-block.amber .info-title{color:var(--c-warning)}

/* Guide */
.guide-section{
    margin-top:24px;background:var(--c-surface);border:1px solid var(--c-border);
    border-radius:var(--radius-lg);padding:22px;box-shadow:var(--shadow-xs)
}
.guide-title{font-size:14px;font-weight:600;margin-bottom:14px}
.step-list{list-style:none;display:flex;flex-direction:column;gap:10px}
.step-item{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-text-secondary)}
.step-num{
    width:24px;height:24px;border-radius:50%;background:var(--c-primary-light);
    color:var(--c-primary);display:flex;align-items:center;justify-content:center;
    font-size:11px;font-weight:700;flex-shrink:0
}
.step-text strong{color:var(--c-text)}
.guide-note{
    margin-top:14px;padding:10px 14px;background:var(--c-warning-light);
    border:1px solid rgba(245,158,11,.2);border-radius:var(--radius-sm);
    font-size:12px;color:#92400e;font-weight:500;
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width:900px){
    .admin-sidebar{
        transform:translateX(-100%);position:fixed;z-index:200;
    }
    .admin-sidebar.open{transform:translateX(0)}
    .admin-main{margin-left:0}
    .page-header{padding:14px 18px}
    .page-content{padding:16px 18px}
    .stats-grid{grid-template-columns:repeat(2,1fr)}
    .data-grid{grid-template-columns:1fr}
}
@media (max-width:600px){
    .stats-grid{grid-template-columns:1fr}
    .auth-card{padding:24px 20px}
    .auth-container{max-width:100%}
    .page-header h1{font-size:18px}
    .btn-group{flex-direction:column;width:100%}
    .btn-group .btn{width:100%}
}

/* Mobile menu toggle */
.menu-toggle{
    display:none;width:36px;height:36px;border-radius:var(--radius-sm);
    border:1.5px solid var(--c-border);background:var(--c-surface);
    color:var(--c-text);cursor:pointer;align-items:center;justify-content:center;
    font-size:18px;transition:var(--transition);
}
@media (max-width:900px){.menu-toggle{display:flex}}