/* ─── Foundation ──────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#fafafa;--surface:#fff;--border:#e8e8e8;--border-light:#f0f0f0;
  --text:#111;--text-secondary:#666;--text-tertiary:#999;
  --primary:#111;--primary-hover:#333;
  --danger:#e53935;--danger-bg:#fef2f2;
  --success:#16a34a;--success-bg:#f0fdf4;
  --warning:#f59e0b;--warning-bg:#fffbeb;
  --radius:10px;--radius-sm:6px;--radius-lg:14px;
  --shadow-sm:0 1px 2px rgba(0,0,0,.04);
  --shadow:0 1px 3px rgba(0,0,0,.06),0 1px 2px rgba(0,0,0,.04);
  --shadow-md:0 4px 12px rgba(0,0,0,.06);
  --font:'Inter',system-ui,-apple-system,sans-serif;
  --sidebar-w:240px;
  --transition:180ms ease;
}
html{font-size:14px}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}

/* ─── Login ──────────────────────────────────────────────── */
.login-view{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:24px;background:var(--bg);position:fixed;inset:0;z-index:200}
.login-card{width:100%;max-width:400px;text-align:center;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:48px 40px 40px;box-shadow:var(--shadow-md)}
.login-logo{margin-bottom:20px}
.login-title{font-size:1.6rem;font-weight:700;letter-spacing:-.03em}
.login-sub{color:var(--text-secondary);margin:6px 0 36px;font-size:.875rem}
.login-error{color:var(--danger);margin-top:16px;font-size:.85rem}

/* ─── Layout ─────────────────────────────────────────────── */
.app{display:flex;min-height:100vh}
.sidebar{width:var(--sidebar-w);background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;position:fixed;top:0;left:0;bottom:0;z-index:100}
.sidebar-brand{display:flex;align-items:center;gap:10px;padding:20px 20px 28px;font-weight:700;font-size:1.05rem;letter-spacing:-.02em}
.sidebar-nav{flex:1;display:flex;flex-direction:column;gap:2px;padding:0 12px}
.sidebar-footer{padding:12px;border-top:1px solid var(--border-light)}

.nav-item{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:var(--radius-sm);color:var(--text-secondary);text-decoration:none;font-size:.875rem;font-weight:500;cursor:pointer;transition:all var(--transition);border:none;background:none;width:100%;text-align:left}
.nav-item:hover{background:#f5f5f5;color:var(--text)}
.nav-item.active{background:#f0f0f0;color:var(--text)}
.nav-item-logout:hover{color:var(--danger)}

.main{margin-left:var(--sidebar-w);flex:1;padding:32px 40px;max-width:1200px}

/* ─── Page Header ────────────────────────────────────────── */
.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px}
.page-header h2{font-size:1.5rem;font-weight:700;letter-spacing:-.02em}
.header-actions{display:flex;gap:10px;align-items:center}

/* ─── Cards ──────────────────────────────────────────────── */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm)}
.card-header{padding:18px 24px;border-bottom:1px solid var(--border-light)}
.card-header h3{font-size:.9rem;font-weight:600;text-transform:uppercase;letter-spacing:.04em;color:var(--text-secondary)}
.card-body{padding:24px}
.card-body-flush{padding:0}

/* ─── Stat Cards ─────────────────────────────────────────── */
.stat-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px}
.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:22px 24px;box-shadow:var(--shadow-sm)}
.stat-card-label{font-size:.8rem;font-weight:500;text-transform:uppercase;letter-spacing:.05em;color:var(--text-secondary);margin-bottom:8px}
.stat-card-value{font-size:1.75rem;font-weight:700;letter-spacing:-.03em;line-height:1}
.stat-card-sub{font-size:.8rem;color:var(--text-tertiary);margin-top:6px}

.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:20px}

/* ─── Table ──────────────────────────────────────────────── */
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;max-width:100%}
.table{width:100%;border-collapse:collapse;min-width:480px}
.table thead th{text-align:left;padding:12px 24px;font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--text-secondary);border-bottom:1px solid var(--border);background:var(--bg)}
.table tbody td{padding:14px 24px;border-bottom:1px solid var(--border-light);font-size:.875rem;vertical-align:middle}
.table tbody tr:last-child td{border-bottom:none}
.table tbody tr:hover{background:#fafafa}
.text-right{text-align:right}

/* ─── Badges ─────────────────────────────────────────────── */
.badge{display:inline-flex;align-items:center;gap:5px;padding:3px 10px;border-radius:100px;font-size:.75rem;font-weight:600;letter-spacing:.01em}
.badge::before{content:'';width:6px;height:6px;border-radius:50%}
.badge-active{background:var(--success-bg);color:var(--success)}.badge-active::before{background:var(--success)}
.badge-error{background:var(--danger-bg);color:var(--danger)}.badge-error::before{background:var(--danger)}
.badge-disabled{background:#f5f5f5;color:var(--text-tertiary)}.badge-disabled::before{background:var(--text-tertiary)}
.badge-plain{background:#f5f5f5;color:var(--text-secondary)}.badge-plain::before{display:none}

/* ─── Buttons ────────────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;gap:6px;padding:10px 20px;border-radius:var(--radius);font-size:.875rem;font-weight:500;border:none;cursor:pointer;transition:all var(--transition);font-family:var(--font);line-height:1.4}
.btn-sm{padding:7px 16px;font-size:.8rem}
.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-hover)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:transparent;color:var(--text-secondary);border:1.5px solid var(--border)}.btn-ghost:hover{background:#f5f5f5;color:var(--text)}
.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{background:#c62828}
.btn-block{width:100%;justify-content:center}
.btn-icon{background:none;border:none;cursor:pointer;padding:6px;border-radius:var(--radius-sm);color:var(--text-secondary);transition:all var(--transition);display:inline-flex;align-items:center}
.btn-icon:hover{background:#f0f0f0;color:var(--text)}
.btn-icon-danger:hover{color:var(--danger);background:var(--danger-bg)}

.action-group{display:flex;gap:4px;justify-content:flex-end}

/* ─── Inputs ─────────────────────────────────────────────── */
.input{width:100%;padding:12px 16px;border:1.5px solid var(--border);border-radius:var(--radius);font-size:.9rem;font-family:var(--font);transition:all var(--transition);outline:none;background:var(--bg);color:var(--text)}
.input::placeholder{color:var(--text-tertiary)}
.input:hover{border-color:#ccc;background:var(--surface)}
.input:focus{border-color:var(--text);background:var(--surface);box-shadow:0 0 0 3px rgba(0,0,0,.06)}
.input-group{margin-bottom:20px}
.form-group{margin-bottom:20px}
.form-group label{display:block;font-weight:500;margin-bottom:6px;font-size:.85rem}

.select-sm{padding:6px 32px 6px 12px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:.8rem;font-family:var(--font);appearance:none;background:var(--surface) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23999' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E") right 10px center no-repeat;cursor:pointer;outline:none}

/* ─── Modal ──────────────────────────────────────────────── */
.modal{position:fixed;inset:0;z-index:1000;display:flex;align-items:center;justify-content:center;padding:24px}
.modal[hidden]{display:none}
.modal-backdrop{position:absolute;inset:0;background:rgba(0,0,0,.3);backdrop-filter:blur(2px)}
.modal-content{position:relative;background:var(--surface);border-radius:var(--radius-lg);width:100%;max-width:480px;box-shadow:var(--shadow-md);overflow:hidden}
.modal-header{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;border-bottom:1px solid var(--border-light)}
.modal-header h3{font-size:1rem;font-weight:600}
.modal-close{background:none;border:none;font-size:1.4rem;cursor:pointer;color:var(--text-secondary);padding:4px 8px;border-radius:var(--radius-sm)}
.modal-close:hover{color:var(--text);background:#f0f0f0}
.modal-body{padding:24px}
.modal-footer{display:flex;justify-content:flex-end;gap:10px;padding:16px 24px;border-top:1px solid var(--border-light)}

/* ─── Toast ──────────────────────────────────────────────── */
.toast-container{position:fixed;top:24px;right:24px;z-index:2000;display:flex;flex-direction:column;gap:10px}
.toast{padding:12px 20px;border-radius:var(--radius);font-size:.85rem;font-weight:500;box-shadow:var(--shadow-md);animation:toast-in .25s ease;min-width:240px}
.toast-success{background:#111;color:#fff}
.toast-error{background:var(--danger);color:#fff}
@keyframes toast-in{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}

/* ─── Logs ───────────────────────────────────────────────── */
.logs-list{max-height:600px;overflow-y:auto}
.log-entry{display:grid;grid-template-columns:140px 70px 1fr 100px 80px;align-items:center;padding:10px 24px;border-bottom:1px solid var(--border-light);font-size:.8rem;gap:12px}
.log-entry:hover{background:#fafafa}
.log-time{color:var(--text-tertiary);font-variant-numeric:tabular-nums}
.log-method{font-weight:600}
.log-model{font-weight:500}
.log-status{font-variant-numeric:tabular-nums}
.log-status-ok{color:var(--success)}
.log-status-err{color:var(--danger)}
.log-duration{color:var(--text-tertiary);text-align:right}

/* ─── Settings ───────────────────────────────────────────── */
.setting-row{display:flex;align-items:center;justify-content:space-between;padding:16px 0;border-bottom:1px solid var(--border-light)}
.setting-row:last-child{border-bottom:none}
.setting-label{font-weight:500;margin-bottom:2px}
.setting-desc{font-size:.8rem;color:var(--text-secondary)}
.setting-value{display:flex;align-items:center;gap:8px}
.setting-value code{background:#f5f5f5;padding:6px 12px;border-radius:var(--radius-sm);font-size:.8rem;font-family:'SF Mono',Menlo,monospace;user-select:all}

/* ─── Chart Tabs ─────────────────────────────────────────── */
.chart-tabs{display:flex;gap:0;background:#f5f5f5;border-radius:var(--radius-sm);padding:3px}
.chart-tab{padding:6px 16px;border:none;background:none;font-size:.8rem;font-weight:500;font-family:var(--font);color:var(--text-secondary);cursor:pointer;border-radius:4px;transition:all var(--transition);white-space:nowrap}
.chart-tab:hover{color:var(--text)}
.chart-tab.active{background:var(--surface);color:var(--text);box-shadow:0 1px 2px rgba(0,0,0,.06)}

/* ─── Empty State ────────────────────────────────────────── */
.empty-state{text-align:center;padding:60px 24px;color:var(--text-secondary)}
.empty-state p{margin-top:8px}
.empty-state svg{margin-bottom:8px}

/* ─── Responsive ─────────────────────────────────────────── */
@media(max-width:1024px){
  .stat-cards{grid-template-columns:repeat(2,1fr)}
  .grid-2{grid-template-columns:1fr}
}
@media(max-width:768px){
  .sidebar{width:60px;overflow:hidden}
  .sidebar-brand span,.nav-item span,.sidebar-footer span,.sidebar-user{display:none}
  .sidebar-brand{padding:16px}
  .main{margin-left:60px;padding:20px}
  .stat-cards{grid-template-columns:1fr 1fr}
  .log-entry{grid-template-columns:80px 50px 1fr 60px}
  .log-duration{display:none}
}

/* ─── Mobile (< 480px) ───────────────────────────────────── */
@media(max-width:480px){
  /* Hide sidebar completely on mobile */
  .sidebar{display:none}
  .main{margin-left:0;padding:16px;max-width:100%;overflow-x:hidden}
  
  /* Login page */
  .login-view{padding:16px}
  .login-card{padding:32px 24px 28px}
  .login-title{font-size:1.35rem}
  .login-sub{margin:6px 0 24px}
  
  /* Stats cards - 2 columns on mobile */
  .stat-cards{grid-template-columns:1fr 1fr;gap:10px}
  .stat-card{padding:14px 16px}
  .stat-card-label{font-size:.7rem}
  .stat-card-value{font-size:1.3rem}
  
  /* Page header */
  .page-header{flex-direction:column;align-items:flex-start;gap:12px}
  .header-actions{width:100%;flex-wrap:wrap}
  .page-header h2{font-size:1.25rem}
  
  /* Cards */
  .card-header,.card-body{padding:16px}
  
  /* Table - smaller padding on mobile */
  .table thead th,.table tbody td{padding:10px 12px;font-size:.8rem;white-space:nowrap}
  
  /* Logs */
  .log-entry{grid-template-columns:70px 1fr 50px;font-size:.75rem;padding:8px 12px}
  .log-method,.log-duration{display:none}
  
  /* Settings */
  .setting-row{flex-direction:column;align-items:flex-start;gap:10px}
  .setting-value{width:100%}
  .setting-value code{font-size:.7rem;word-break:break-all;white-space:normal}
  
  /* Modal */
  .modal-content{max-width:100%;margin:0 8px;border-radius:var(--radius)}
  .modal-header,.modal-body,.modal-footer{padding:16px}
  
  /* Buttons */
  .btn{padding:10px 16px;font-size:.8rem}
  .btn-sm{padding:8px 14px}
  
  /* Grid */
  .grid-2{grid-template-columns:1fr;gap:16px}
  
  /* Charts */
  .chart-tabs{flex-wrap:wrap}
  .chart-tab{padding:6px 12px;font-size:.75rem}
  .card{overflow:hidden}
  .card canvas{max-width:100% !important;height:auto !important}
  
  /* Add mobile nav at bottom */
  .mobile-nav{display:flex;position:fixed;bottom:0;left:0;right:0;background:var(--surface);border-top:1px solid var(--border);padding:8px 0;z-index:100;justify-content:space-around}
  .mobile-nav-item{display:flex;flex-direction:column;align-items:center;gap:4px;padding:6px 12px;color:var(--text-secondary);text-decoration:none;font-size:.65rem;font-weight:500}
  .mobile-nav-item svg{width:20px;height:20px}
  .mobile-nav-item.active{color:var(--text)}
  .mobile-nav-item:active{transform:scale(.95)}
  
  /* Account for bottom nav */
  .main{padding-bottom:80px}
}

/* Hide mobile nav on larger screens */
@media(min-width:481px){
  .mobile-nav{display:none !important}
}