/* ================================================================
   SMASH STOCK — Design System
   ================================================================ */
:root {
  --bg:#F8F7F5; --surface:#FFFFFF; --sidebar:#111111;
  --sidebar-hover:#1D1D1D; --sidebar-muted:#888580; --sidebar-text:#E8E6E1;
  --accent:#F59E0B; --accent-dark:#D97706; --accent-light:#FFFBEB;
  --text:#1A1A1A; --text-secondary:#6B7280; --text-muted:#9CA3AF;
  --border:#E5E7EB; --border-md:#D1D5DB;
  --success:#059669; --success-bg:#ECFDF5; --success-border:#6EE7B7;
  --warning:#D97706; --warning-bg:#FFFBEB; --warning-border:#FCD34D;
  --danger:#DC2626; --danger-bg:#FEF2F2; --danger-border:#FCA5A5;
  --info:#2563EB; --info-bg:#EFF6FF; --info-border:#93C5FD;
  --radius:8px; --radius-lg:12px; --radius-xl:16px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:14px}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','Helvetica Neue',sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
input,select,textarea,button{font-family:inherit;font-size:14px;outline:none}
input[type=number]::-webkit-inner-spin-button{opacity:0.5}

/* ── Layout ── */
#app{display:flex;min-height:100vh}
.sidebar{width:240px;background:var(--sidebar);display:flex;flex-direction:column;min-height:100vh;position:fixed;top:0;left:0;z-index:200;transition:transform .25s}
.main{margin-left:240px;flex:1;display:flex;flex-direction:column;min-height:100vh}
.page{display:none;flex:1}
.page.active{display:flex;flex-direction:column}

/* ── Sidebar ── */
.sb-brand{padding:18px 16px;border-bottom:1px solid rgba(255,255,255,.07);display:flex;align-items:center;gap:10px}
.sb-logo{width:36px;height:36px;background:var(--accent);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0}
.sb-name{font-size:15px;font-weight:700;color:#fff;line-height:1.2}
.sb-loc{font-size:11px;color:var(--sidebar-muted)}
.sb-nav{flex:1;padding:10px 0;overflow-y:auto}
.sb-section{padding:12px 16px 4px;font-size:10px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--sidebar-muted)}
.sb-item{display:flex;align-items:center;gap:10px;padding:8px 14px;margin:1px 8px;border-radius:var(--radius);cursor:pointer;color:var(--sidebar-muted);font-size:13px;font-weight:500;transition:all .15s;position:relative}
.sb-item:hover{background:var(--sidebar-hover);color:var(--sidebar-text)}
.sb-item.active{background:rgba(245,158,11,.15);color:var(--accent)}
.sb-item .ic{font-size:17px;width:22px;text-align:center;flex-shrink:0}
.sb-badge{margin-left:auto;background:var(--danger);color:#fff;border-radius:10px;padding:2px 6px;font-size:10px;font-weight:700;min-width:18px;text-align:center}
.sb-footer{padding:14px 16px;border-top:1px solid rgba(255,255,255,.07)}
.sb-user{display:flex;align-items:center;gap:9px}
.sb-avatar{width:32px;height:32px;border-radius:50%;background:var(--accent);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;color:#fff;flex-shrink:0}
.sb-uname{font-size:12px;font-weight:600;color:var(--sidebar-text)}
.sb-uemail{font-size:11px;color:var(--sidebar-muted)}
.sb-logout{margin-left:auto;cursor:pointer;color:var(--sidebar-muted);font-size:18px;padding:4px;border-radius:4px;transition:color .15s}
.sb-logout:hover{color:var(--danger)}

/* ── Page layout ── */
.page-head{padding:22px 26px 0;display:flex;align-items:flex-start;justify-content:space-between;flex-wrap:wrap;gap:12px}
.page-title{font-size:20px;font-weight:700}
.page-sub{font-size:13px;color:var(--text-secondary);margin-top:2px}
.page-body{padding:18px 26px 36px;flex:1}

/* ── Metric cards ── */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:18px}
.mcard{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:16px 18px}
.mcard-ic{font-size:22px;margin-bottom:8px}
.mcard-val{font-size:26px;font-weight:700;line-height:1;margin-bottom:4px}
.mcard-lbl{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--text-secondary)}
.mcard-sub{font-size:11px;color:var(--text-muted);margin-top:4px}
.mcard.danger{border-left:3px solid var(--danger)}
.mcard.warning{border-left:3px solid var(--warning)}
.mcard.success{border-left:3px solid var(--success)}
.mcard-val.danger{color:var(--danger)}
.mcard-val.warning{color:var(--warning)}
.mcard-val.success{color:var(--success)}

/* ── Cards ── */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:18px 20px;margin-bottom:16px}
.card-hd{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.card-title{font-size:14px;font-weight:700}
.card-grid{display:grid;gap:14px}
.grid-2{grid-template-columns:1fr 1fr}
.grid-3{grid-template-columns:1fr 1fr 1fr}

/* ── Alerts ── */
.alert{border-radius:var(--radius);padding:11px 14px;margin-bottom:14px;display:flex;gap:10px;font-size:13px;align-items:flex-start;line-height:1.5}
.alert.danger{background:var(--danger-bg);color:#991B1B;border:1px solid var(--danger-border)}
.alert.warning{background:var(--warning-bg);color:#92400E;border:1px solid var(--warning-border)}
.alert.success{background:var(--success-bg);color:#065F46;border:1px solid var(--success-border)}
.alert.info{background:var(--info-bg);color:#1E40AF;border:1px solid var(--info-border)}
.alert-icon{font-size:16px;flex-shrink:0;margin-top:1px}

/* ── Form ── */
.form-group{display:flex;flex-direction:column;gap:5px;margin-bottom:14px}
.form-group:last-child{margin-bottom:0}
.label{font-size:12px;font-weight:600;color:var(--text-secondary)}
.input{width:100%;padding:9px 12px;border:1px solid var(--border-md);border-radius:var(--radius);background:#fff;color:var(--text);transition:border-color .15s,box-shadow .15s}
.input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(245,158,11,.12)}
.input.err{border-color:var(--danger)}
select.input{cursor:pointer;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236B7280' d='M6 8L1 3h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 10px center;padding-right:30px}
textarea.input{resize:vertical;min-height:72px}
.hint{font-size:11px;color:var(--text-muted)}

/* ── Buttons ── */
.btn{display:inline-flex;align-items:center;gap:7px;padding:9px 16px;border-radius:var(--radius);border:none;cursor:pointer;font-size:13px;font-weight:600;transition:all .15s;white-space:nowrap}
.btn:disabled{opacity:.5;cursor:not-allowed;pointer-events:none}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dark)}
.btn-outline{background:var(--surface);color:var(--text);border:1px solid var(--border-md)}
.btn-outline:hover{background:var(--bg)}
.btn-danger{background:var(--danger-bg);color:var(--danger);border:1px solid var(--danger-border)}
.btn-danger:hover{background:var(--danger);color:#fff}
.btn-success{background:var(--success-bg);color:var(--success);border:1px solid var(--success-border)}
.btn-success:hover{background:var(--success);color:#fff}
.btn-ghost{background:transparent;color:var(--text-secondary);border:none;padding:6px 10px}
.btn-ghost:hover{background:var(--bg);color:var(--text)}
.btn-sm{padding:6px 12px;font-size:12px}
.btn-lg{padding:11px 22px;font-size:14px}
.btn-full{width:100%;justify-content:center}

/* ── Table ── */
.tbl-wrap{overflow-x:auto;border-radius:var(--radius)}
table{width:100%;border-collapse:collapse;font-size:13px}
thead tr{background:var(--bg)}
th{padding:9px 13px;text-align:left;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--text-secondary);border-bottom:1px solid var(--border);white-space:nowrap}
td{padding:10px 13px;border-bottom:1px solid var(--border);vertical-align:middle}
tbody tr:last-child td{border-bottom:none}
tbody tr:hover{background:#FAFAF9}
.tbl-foot td{background:var(--bg);font-weight:700;font-size:12px}

/* ── Badges ── */
.badge{display:inline-flex;align-items:center;padding:3px 9px;border-radius:20px;font-size:11px;font-weight:600;gap:4px;white-space:nowrap}
.badge-ok{background:var(--success-bg);color:#065F46}
.badge-warn{background:var(--warning-bg);color:#92400E}
.badge-crit{background:var(--danger-bg);color:#991B1B}
.badge-info{background:var(--info-bg);color:#1E40AF}
.badge-gray{background:#F3F4F6;color:#374151}
.badge-in{background:#EFF6FF;color:#1E40AF}
.badge-out{background:#FEF2F2;color:#991B1B}

/* ── Filters / Search ── */
.filters{display:flex;gap:10px;margin-bottom:16px;flex-wrap:wrap;align-items:center}
.search-box{flex:1;min-width:180px;padding:8px 12px 8px 36px;border:1px solid var(--border-md);border-radius:var(--radius);background:var(--surface) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%236B7280' stroke-width='2'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cpath d='m21 21-4.35-4.35'/%3E%3C/svg%3E") 10px center no-repeat}
.search-box:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(245,158,11,.12)}
.filter-select{padding:8px 12px;border:1px solid var(--border-md);border-radius:var(--radius);background:var(--surface);color:var(--text);cursor:pointer}

/* ── Login ── */
#login-page{position:fixed;inset:0;background:var(--sidebar);display:flex;align-items:center;justify-content:center;z-index:300}
.login-box{background:#fff;border-radius:20px;padding:40px;width:380px;max-width:calc(100vw - 32px)}
.login-brand{text-align:center;margin-bottom:28px}
.login-brand h1{font-size:30px;font-weight:800;letter-spacing:-.5px}
.login-brand p{font-size:13px;color:var(--text-secondary);margin-top:3px}
.login-title{font-size:17px;font-weight:700;margin-bottom:18px}
.login-err{background:var(--danger-bg);color:#991B1B;padding:10px 14px;border-radius:var(--radius);margin-bottom:14px;font-size:13px;display:none}

/* ── Loading ── */
#loading{position:fixed;inset:0;background:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:400;gap:14px}
.spin{width:36px;height:36px;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* ── Toast ── */
#toast{position:fixed;bottom:22px;right:22px;z-index:500;display:none;max-width:320px}
.toast-inner{padding:12px 18px;border-radius:var(--radius-lg);font-size:13px;font-weight:500;line-height:1.4}
.toast-success{background:#111;color:#fff}
.toast-danger{background:var(--danger);color:#fff}
.toast-warning{background:var(--warning);color:#fff}

/* ── Stock bar ── */
.stock-mini{width:100%;height:4px;background:var(--bg);border-radius:2px;margin-top:3px;overflow:hidden}
.stock-fill{height:100%;border-radius:2px;transition:width .4s}
.stock-fill.ok{background:var(--success)}
.stock-fill.warn{background:var(--warning)}
.stock-fill.crit{background:var(--danger)}

/* ── Stat row ── */
.stat-row{display:flex;align-items:center;justify-content:space-between;padding:7px 0;border-bottom:1px solid var(--border);font-size:13px}
.stat-row:last-child{border-bottom:none}

/* ── Empty state ── */
.empty{text-align:center;padding:40px 20px;color:var(--text-muted)}
.empty-ico{font-size:38px;margin-bottom:10px}
.empty h3{font-size:15px;font-weight:600;color:var(--text-secondary);margin-bottom:5px}
.empty p{font-size:12px}

/* ── Chart ── */
.chart-wrap{position:relative;height:200px}

/* ── Tag chips ── */
.chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:4px}
.chip{background:var(--bg);border:1px solid var(--border);border-radius:20px;padding:3px 10px;font-size:12px;color:var(--text-secondary)}
.chip.sel{background:var(--accent-light);border-color:var(--accent);color:var(--accent-dark);font-weight:600}

/* ── Responsive ── */
@media(max-width:1100px){.metrics{grid-template-columns:repeat(2,1fr)}}
@media(max-width:760px){
  .sidebar{transform:translateX(-240px)}
  .sidebar.open{transform:translateX(0)}
  .main{margin-left:0}
  .grid-2,.grid-3{grid-template-columns:1fr}
  .metrics{grid-template-columns:1fr 1fr}
  .mobile-menu{display:flex}
}
.mobile-menu{display:none;position:fixed;top:14px;left:14px;z-index:250;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:8px;cursor:pointer}