/* ═══════════════════════════════════════════════════
   WacrM — Design System
   Clean, professional SaaS UI
   ═══════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* ── Reset ─────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{font-family:'Inter',system-ui,-apple-system,sans-serif;color:var(--text);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--primary);text-decoration:none;transition:color .15s}
a:hover{color:var(--primary-hover)}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit;color:inherit;border:none;outline:none}
table{border-collapse:collapse;width:100%}

/* ── Layout Shell ──────────────────────────────── */
.app-wrapper{display:flex;min-height:100vh}
.app-sidebar{position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-width);background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;z-index:40;transition:transform .25s ease}
.app-main{margin-left:var(--sidebar-width);flex:1;display:flex;flex-direction:column;min-height:100vh;min-width:0}
.app-topbar{position:sticky;top:0;height:var(--topbar-height);background:var(--surface);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 24px;z-index:30}
.app-content{flex:1;padding:24px 28px 40px;overflow-x:auto;max-width:100%}

/* ── Sidebar ───────────────────────────────────── */
.sidebar-brand{height:var(--topbar-height);display:flex;align-items:center;padding:0 20px;border-bottom:1px solid var(--border);gap:10px;flex-shrink:0}
.sidebar-brand-logo{width:28px;height:28px;background:var(--primary);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:14px}
.sidebar-brand-name{font-weight:600;font-size:15px;color:var(--text);letter-spacing:-.02em}
.sidebar-nav{flex:1;overflow-y:auto;padding:12px 10px}
.sidebar-section{margin-bottom:20px}
.sidebar-section-title{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);padding:0 10px;margin-bottom:6px}
.sidebar-link{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:var(--radius-sm);font-size:13.5px;font-weight:450;color:var(--text-muted);transition:all .15s;cursor:pointer;position:relative}
.sidebar-link:hover{color:var(--text);background:var(--surface-2)}
.sidebar-link.active{color:var(--primary);background:color-mix(in srgb,var(--primary) 8%,transparent);font-weight:500}
.sidebar-link.active::before{content:'';position:absolute;left:0;top:6px;bottom:6px;width:3px;background:var(--primary);border-radius:0 2px 2px 0}
.sidebar-link svg,.sidebar-link .si{width:18px;height:18px;flex-shrink:0;opacity:.7}
.sidebar-link.active svg,.sidebar-link.active .si{opacity:1}
.sidebar-badge{margin-left:auto;font-size:11px;font-weight:600;background:var(--primary);color:#fff;padding:1px 7px;border-radius:var(--radius-full);line-height:1.5}
.sidebar-footer{padding:12px 16px;border-top:1px solid var(--border);font-size:12px;color:var(--text-muted)}

/* ── Topbar ────────────────────────────────────── */
.topbar-left{display:flex;align-items:center;gap:12px}
.topbar-title{font-size:16px;font-weight:600;color:var(--text);letter-spacing:-.01em}
.topbar-breadcrumb{font-size:13px;color:var(--text-muted)}
.topbar-breadcrumb a{color:var(--text-muted)}
.topbar-breadcrumb a:hover{color:var(--primary)}
.topbar-breadcrumb .sep{margin:0 6px;opacity:.4}
.topbar-right{display:flex;align-items:center;gap:16px}
.topbar-btn{width:36px;height:36px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--text-muted);transition:all .15s;background:transparent;border:1px solid transparent}
.topbar-btn:hover{background:var(--surface-2);color:var(--text);border-color:var(--border)}
.topbar-btn svg{width:18px;height:18px}
.topbar-avatar{width:32px;height:32px;border-radius:var(--radius-full);background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:13px;cursor:pointer}
.topbar-user{display:flex;align-items:center;gap:10px;cursor:pointer;padding:4px 8px;border-radius:var(--radius-sm);transition:background .15s}
.topbar-user:hover{background:var(--surface-2)}
.topbar-user-info{text-align:right}
.topbar-user-name{font-size:13px;font-weight:500;color:var(--text);line-height:1.2}
.topbar-user-role{font-size:11px;color:var(--text-muted)}

/* ── Hamburger (mobile) ────────────────────────── */
.hamburger{display:none;background:none;cursor:pointer;padding:4px}
.hamburger svg{width:22px;height:22px;color:var(--text)}
.sidebar-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:39}

/* ── Cards ─────────────────────────────────────── */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:20px;box-shadow:var(--shadow-sm)}
.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.card-title{font-size:14px;font-weight:600;color:var(--text)}
.card-subtitle{font-size:12px;color:var(--text-muted);margin-top:2px}

/* ── KPI Cards ─────────────────────────────────── */
.kpi-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px;margin-bottom:24px}
.kpi-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:20px;box-shadow:var(--shadow-sm);transition:border-color .2s}
.kpi-card:hover{border-color:color-mix(in srgb,var(--primary) 30%,var(--border))}
.kpi-label{font-size:12.5px;font-weight:500;color:var(--text-muted);margin-bottom:6px;display:flex;align-items:center;gap:6px}
.kpi-label svg{width:15px;height:15px;opacity:.6}
.kpi-value{font-size:28px;font-weight:700;color:var(--text);letter-spacing:-.03em;font-family:'JetBrains Mono','Inter',monospace;line-height:1.2}
.kpi-sub{font-size:12px;color:var(--text-muted);margin-top:4px;display:flex;align-items:center;gap:4px}
.kpi-up{color:#16a34a}
.kpi-down{color:#dc2626}

/* ── Tables ────────────────────────────────────── */
.table-wrapper{overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--surface)}
.tbl{width:100%}
.tbl th{padding:10px 14px;font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.04em;color:var(--text-muted);text-align:left;background:var(--surface-2);border-bottom:1px solid var(--border);white-space:nowrap}
.tbl td{padding:10px 14px;font-size:13.5px;color:var(--text);border-bottom:1px solid var(--border);vertical-align:middle}
.tbl tbody tr{transition:background .1s}
.tbl tbody tr:hover{background:var(--surface-2)}
.tbl tbody tr:last-child td{border-bottom:0}

/* ── Badges ────────────────────────────────────── */
.badge{display:inline-flex;align-items:center;padding:2px 8px;border-radius:var(--radius-full);font-size:11.5px;font-weight:500;line-height:1.6}
.badge-success{background:rgba(22,163,74,.1);color:#16a34a}
.badge-warning{background:rgba(234,179,8,.1);color:#b45309}
.badge-danger{background:rgba(220,38,38,.1);color:#dc2626}
.badge-info{background:rgba(59,130,246,.1);color:#2563eb}
.badge-muted{background:var(--surface-2);color:var(--text-muted)}
.badge-primary{background:color-mix(in srgb,var(--primary) 12%,transparent);color:var(--primary)}

/* ── Buttons ───────────────────────────────────── */
.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;font-size:13.5px;font-weight:500;border-radius:var(--radius-sm);cursor:pointer;transition:all .15s;border:1px solid transparent;line-height:1.4;white-space:nowrap}
.btn svg{width:16px;height:16px}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}
.btn-primary:hover{background:var(--primary-hover);border-color:var(--primary-hover);color:#fff}
.btn-outline{background:transparent;color:var(--text);border-color:var(--border)}
.btn-outline:hover{background:var(--surface-2);border-color:var(--text-muted)}
.btn-ghost{background:transparent;color:var(--text-muted);padding:6px 10px}
.btn-ghost:hover{color:var(--text);background:var(--surface-2)}
.btn-danger{background:#dc2626;color:#fff;border-color:#dc2626}
.btn-danger:hover{background:#b91c1c}
.btn-sm{padding:5px 10px;font-size:12.5px}
.btn-lg{padding:10px 20px;font-size:14px}
.btn-icon{padding:6px;border-radius:var(--radius-sm)}

/* ── Forms ─────────────────────────────────────── */
.form-group{margin-bottom:16px}
.form-label{display:block;font-size:13px;font-weight:500;color:var(--text);margin-bottom:6px}
.form-hint{font-size:12px;color:var(--text-muted);margin-top:4px}
.form-control{width:100%;padding:9px 12px;font-size:14px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);transition:border-color .15s,box-shadow .15s}
.form-control:focus{border-color:var(--primary);box-shadow:0 0 0 3px color-mix(in srgb,var(--primary) 12%,transparent)}
.form-control::placeholder{color:var(--text-muted);opacity:.6}
textarea.form-control{resize:vertical;min-height:100px}
select.form-control{appearance:none;background-image: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='%2364748b' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 10px center;padding-right:32px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}

/* ── Flash Messages ────────────────────────────── */
.flash{padding:12px 16px;border-radius:var(--radius-sm);font-size:13.5px;margin-bottom:20px;display:flex;align-items:center;gap:8px;animation:flashIn .25s ease}
.flash-success{background:rgba(22,163,74,.08);color:#16a34a;border:1px solid rgba(22,163,74,.15)}
.flash-error{background:rgba(220,38,38,.08);color:#dc2626;border:1px solid rgba(220,38,38,.15)}
.flash-info{background:rgba(59,130,246,.08);color:#2563eb;border:1px solid rgba(59,130,246,.15)}
@keyframes flashIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}

/* ── Page Header ───────────────────────────────── */
.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;flex-wrap:wrap;gap:12px}
.page-title{font-size:22px;font-weight:700;color:var(--text);letter-spacing:-.02em}
.page-subtitle{font-size:13px;color:var(--text-muted);margin-top:2px}
.page-actions{display:flex;gap:8px}

/* ── Empty State ───────────────────────────────── */
.empty-state{text-align:center;padding:48px 24px;color:var(--text-muted)}
.empty-state svg{width:48px;height:48px;margin:0 auto 12px;opacity:.3}
.empty-state p{font-size:14px;margin-bottom:16px}

/* ── Section Grid ──────────────────────────────── */
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}

/* ── Auth Layout ───────────────────────────────── */
.auth-wrapper{min-height:100vh;display:flex;background:var(--bg)}
.auth-left{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px}
.auth-card{width:100%;max-width:400px}
.auth-brand{display:flex;align-items:center;gap:10px;margin-bottom:32px}
.auth-brand-icon{width:36px;height:36px;background:var(--primary);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:16px}
.auth-brand-name{font-size:20px;font-weight:700;color:var(--text)}
.auth-heading{font-size:22px;font-weight:700;color:var(--text);margin-bottom:4px;letter-spacing:-.02em}
.auth-subheading{font-size:14px;color:var(--text-muted);margin-bottom:28px}
.auth-form .form-group{margin-bottom:18px}
.auth-form .btn{width:100%;justify-content:center;padding:10px;font-size:14px}
.auth-footer{text-align:center;margin-top:24px;font-size:13px;color:var(--text-muted)}
.auth-right{flex:1;background:linear-gradient(135deg,color-mix(in srgb,var(--primary) 10%,var(--bg)),var(--surface-2));display:flex;flex-direction:column;align-items:center;justify-content:center;padding:60px;position:relative;overflow:hidden}
.auth-right-content{position:relative;z-index:1;max-width:420px;text-align:center}
.auth-right h2{font-size:26px;font-weight:700;color:var(--text);margin-bottom:12px;letter-spacing:-.02em}
.auth-right p{font-size:15px;color:var(--text-muted);line-height:1.7}
.auth-right::before{content:'';position:absolute;width:400px;height:400px;border-radius:50%;background:color-mix(in srgb,var(--primary) 5%,transparent);top:-100px;right:-100px}
.auth-right::after{content:'';position:absolute;width:300px;height:300px;border-radius:50%;background:color-mix(in srgb,var(--primary) 4%,transparent);bottom:-50px;left:-50px}

/* ── Scrollbar ─────────────────────────────────── */
::-webkit-scrollbar{width:6px;height:6px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}

/* ── Utilities ─────────────────────────────────── */
.text-muted{color:var(--text-muted)}
.text-primary{color:var(--primary)}
.text-success{color:#16a34a}
.text-danger{color:#dc2626}
.text-sm{font-size:12.5px}
.text-mono{font-family:'JetBrains Mono',monospace}
.font-medium{font-weight:500}
.font-semibold{font-weight:600}
.mt-4{margin-top:16px}
.mb-4{margin-bottom:16px}
.mb-6{margin-bottom:24px}
.gap-2{gap:8px}
.flex{display:flex}
.items-center{align-items:center}
.justify-between{justify-content:space-between}
.hidden{display:none!important}
.truncate{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:200px}
.mobile-hide{}

/* ── Status Dot ────────────────────────────────── */
.status-dot{width:8px;height:8px;border-radius:50%;display:inline-block;margin-right:6px}
.status-dot.connected{background:#16a34a;box-shadow:0 0 6px rgba(22,163,74,.4)}
.status-dot.disconnected{background:#94a3b8}
.status-dot.scanning{background:#eab308;animation:pulse 1.5s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}

/* ── Dropdown Menu ─────────────────────────────── */
.dropdown{position:relative}
.dropdown-menu{position:absolute;top:calc(100% + 4px);right:0;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-md);min-width:180px;padding:4px;z-index:50;display:none}
.dropdown-menu.show{display:block;animation:dropIn .15s ease}
.dropdown-item{display:flex;align-items:center;gap:8px;padding:8px 12px;font-size:13px;color:var(--text);border-radius:var(--radius-sm);cursor:pointer;transition:background .1s}
.dropdown-item:hover{background:var(--surface-2)}
.dropdown-divider{height:1px;background:var(--border);margin:4px 0}
@keyframes dropIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}

/* ── Search Bar ────────────────────────────────── */
.search-bar{position:relative;max-width:320px}
.search-bar input{padding-left:36px}
.search-bar svg{position:absolute;left:10px;top:50%;transform:translateY(-50%);width:16px;height:16px;color:var(--text-muted);opacity:.5}

/* ── Tabs ──────────────────────────────────────── */
.tabs{display:flex;gap:0;border-bottom:1px solid var(--border);margin-bottom:24px}
.tab{padding:10px 16px;font-size:13.5px;font-weight:500;color:var(--text-muted);cursor:pointer;border-bottom:2px solid transparent;transition:all .15s;margin-bottom:-1px}
.tab:hover{color:var(--text)}
.tab.active{color:var(--primary);border-bottom-color:var(--primary)}

/* ── Color Picker ──────────────────────────────── */
.color-input{display:flex;align-items:center;gap:10px}
.color-input input[type="color"]{width:40px;height:34px;border:1px solid var(--border);border-radius:var(--radius-sm);padding:2px;cursor:pointer;background:var(--surface)}
.color-input .form-control{flex:1}

/* ── Modal / Popup ─────────────────────────────── */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.45);backdrop-filter:blur(4px);z-index:200;display:none;align-items:center;justify-content:center;padding:20px}
.modal-overlay.show{display:flex;animation:modalFadeIn .2s ease}
.modal-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);max-width:420px;width:100%;padding:28px;animation:modalSlideIn .25s ease}
.modal-icon{width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 16px}
.modal-icon.danger{background:rgba(220,38,38,.1)}
.modal-title{font-size:18px;font-weight:600;color:var(--text);margin:0 0 6px;text-align:center}
.modal-desc{font-size:13.5px;color:var(--text-muted);margin:0;text-align:center;line-height:1.5}
.modal-warning{background:rgba(220,38,38,.05);border:1px solid rgba(220,38,38,.15);border-radius:var(--radius-sm);padding:12px 16px;margin:18px 0;font-size:13px;color:#dc2626;line-height:1.5}
.modal-actions{display:flex;gap:10px;margin-top:22px}
.modal-actions .btn{flex:1;justify-content:center}
.btn-danger{background:#dc2626;color:#fff;border:1px solid #dc2626}
.btn-danger:hover{background:#b91c1c}
@keyframes modalFadeIn{from{opacity:0}to{opacity:1}}
@keyframes modalSlideIn{from{opacity:0;transform:translateY(-10px) scale(.97)}to{opacity:1;transform:translateY(0) scale(1)}}

/* ── Responsive ────────────────────────────────── */
@media(max-width:1024px){
  .grid-2,.grid-3{grid-template-columns:minmax(0,1fr)}
  .auth-right{display:none}
  .form-row{grid-template-columns:1fr}
}
@media(max-width:768px){
  .app-sidebar{transform:translateX(-100%)}
  .app-sidebar.open{transform:translateX(0)}
  .sidebar-overlay.show{display:block}
  .app-main{margin-left:0}
  .hamburger{display:flex}
  .kpi-grid{grid-template-columns:1fr 1fr}
  .app-content{padding:16px}
  .page-header{flex-direction:column;align-items:flex-start;gap:12px}
  .mobile-hide{display:none!important}
  .page-actions{width:100%;flex-wrap:wrap}
  .page-actions .search-bar{max-width:100%;width:100%}
  .page-actions .btn{flex:1;justify-content:center;min-width:120px}
  /* Tables: ensure horizontal scroll */
  .table-wrapper{-webkit-overflow-scrolling:touch}
  .tbl th,.tbl td{white-space:nowrap;padding:8px 10px;font-size:12.5px}
  /* Tabs: scrollable on mobile */
  .tabs{overflow-x:auto;-webkit-overflow-scrolling:touch;flex-wrap:nowrap;gap:0;padding-bottom:1px}
  .tab{flex-shrink:0;padding:8px 12px;font-size:12.5px}
  /* Topbar compact */
  .app-topbar{padding:0 12px}
  .topbar-title{font-size:14px}
  .topbar-user-info{display:none}
  .topbar-right{gap:8px}
  /* Cards */
  .card{padding:16px}
  /* Page title */
  .page-title{font-size:18px}
  .page-subtitle{font-size:12px}
}
@media(max-width:480px){
  .kpi-grid{grid-template-columns:1fr}
  .app-content{padding:12px}
  .page-title{font-size:16px}
  .card{padding:14px}
  .btn{padding:7px 12px;font-size:12.5px}
  .btn-sm{padding:5px 8px;font-size:11.5px}
  .kpi-value{font-size:22px}
  .kpi-card{padding:14px}
}