@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');
:root{--bg:#f0f4f8;--panel:#fff;--panel-soft:#eef2f9;--text:#111827;--muted:#64748b;--line:#e2e8f0;--accent:#4f46e5;--accent-light:#818cf8;--accent-bg:rgba(79,70,229,.07);--danger:#dc2626;--danger-bg:rgba(220,38,38,.07);--success:#059669;--success-bg:rgba(5,150,105,.07);--warn:#d97706;--warn-bg:rgba(217,119,6,.07);--radius:10px;--radius-lg:14px;--shadow:0 1px 3px rgba(0,0,0,.06),0 4px 16px rgba(0,0,0,.04);--shadow-lg:0 8px 30px rgba(0,0,0,.08);--sidebar-bg:#0f172a;--sidebar-text:#e2e8f0;--topbar-bg:rgba(255,255,255,.82);--transition:all .2s cubic-bezier(.4,0,.2,1)}
[data-theme="dark"]{--bg:#0b1120;--panel:#131c2e;--panel-soft:#1a253b;--text:#f1f5f9;--muted:#94a3b8;--line:#1e293b;--accent:#818cf8;--accent-light:#a5b4fc;--accent-bg:rgba(129,140,248,.1);--danger:#f87171;--danger-bg:rgba(248,113,113,.1);--success:#34d399;--success-bg:rgba(52,211,153,.1);--warn:#fbbf24;--warn-bg:rgba(251,191,36,.1);--shadow:0 1px 3px rgba(0,0,0,.2),0 4px 16px rgba(0,0,0,.15);--shadow-lg:0 8px 30px rgba(0,0,0,.3);--sidebar-bg:#070d1a;--topbar-bg:rgba(19,28,46,.85)}
*,*::before,*::after{box-sizing:border-box;margin:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{font-family:'Inter',system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;transition:background .3s,color .3s}
a{color:var(--accent);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--accent-light)}
img{max-width:100%;display:block}
::selection{background:var(--accent);color:#fff}

/* ── App Shell ── */
.app-shell{min-height:100vh;display:grid;grid-template-columns:260px 1fr}
.sidebar{background:var(--sidebar-bg);color:var(--sidebar-text);padding:20px 14px;position:sticky;top:0;height:100vh;overflow-y:auto;display:flex;flex-direction:column;z-index:20;transition:transform .25s cubic-bezier(.4,0,.2,1)}
.sidebar::-webkit-scrollbar{width:4px}
.sidebar::-webkit-scrollbar-thumb{background:rgba(255,255,255,.1);border-radius:4px}

/* ── Sidebar Brand ── */
.sidebar-brand{display:flex;gap:12px;align-items:center;padding:4px 8px 20px;margin-bottom:8px;border-bottom:1px solid rgba(255,255,255,.06)}
.brand-mark{width:40px;height:40px;border-radius:10px;display:grid;place-items:center;background:linear-gradient(135deg,#6366f1,#818cf8);font-weight:800;font-size:14px;color:#fff;flex-shrink:0;box-shadow:0 4px 12px rgba(99,102,241,.3)}
.sidebar-brand strong{font-size:15px;font-weight:700;letter-spacing:-.3px}
.sidebar-brand span{display:block;color:rgba(226,232,240,.5);font-size:11px;margin-top:2px;font-weight:500}

/* ── Sidebar Nav ── */
.sidebar-nav{display:grid;gap:2px;flex:1}
.sidebar-nav a{color:rgba(226,232,240,.7);padding:10px 12px;border-radius:8px;font-size:13.5px;font-weight:500;display:flex;align-items:center;gap:10px;transition:var(--transition);position:relative}
.sidebar-nav a svg{width:18px;height:18px;opacity:.55;flex-shrink:0;transition:opacity .2s}
.sidebar-nav a:hover{background:rgba(255,255,255,.06);color:#f1f5f9}
.sidebar-nav a:hover svg{opacity:.85}
.sidebar-nav a.active{background:rgba(99,102,241,.15);color:#a5b4fc;font-weight:600}
.sidebar-nav a.active svg{opacity:1;color:#a5b4fc}
.sidebar-nav a.active::before{content:'';position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:20px;background:#818cf8;border-radius:0 3px 3px 0}

/* ── Main Shell ── */
.main-shell{min-width:0;display:flex;flex-direction:column}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 24px;border-bottom:1px solid var(--line);background:var(--topbar-bg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);position:sticky;top:0;z-index:10;transition:background .3s}
.topbar-title h1{font-size:22px;font-weight:700;letter-spacing:-.4px;line-height:1.2}
.topbar-title p{margin-top:2px;color:var(--muted);font-size:13px;font-weight:400}
.topbar-tools{display:flex;gap:8px;align-items:center}
.user-pill{display:grid;gap:1px;text-align:right;padding:0 8px}
.user-pill strong{font-size:13px;font-weight:600}
.user-pill span{color:var(--muted);font-size:11px;font-weight:500}
.content{padding:24px;display:grid;gap:20px;flex:1}

/* ── Buttons ── */
button,.button{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:9px 16px;border:none;border-radius:8px;cursor:pointer;font:inherit;font-size:13.5px;font-weight:600;transition:var(--transition);white-space:nowrap}
.button.primary,button.primary{background:var(--accent);color:#fff;box-shadow:0 2px 8px rgba(79,70,229,.25)}
.button.primary:hover,button.primary:hover{filter:brightness(1.1);transform:translateY(-1px);box-shadow:0 4px 14px rgba(79,70,229,.35)}
.button.subtle,button.subtle{background:var(--panel-soft);color:var(--text);border:1px solid var(--line)}
.button.subtle:hover,button.subtle:hover{background:var(--accent-bg);color:var(--accent);border-color:var(--accent)}
.button.danger,button.danger{background:var(--danger);color:#fff}
.button.sm,button.sm{padding:6px 10px;font-size:12px;border-radius:6px}
.icon-button{width:38px;height:38px;padding:0;border:1px solid var(--line);border-radius:8px;background:var(--panel-soft);color:var(--text);display:inline-grid;place-items:center;font-size:16px;transition:var(--transition)}
.icon-button:hover{background:var(--accent-bg);color:var(--accent);border-color:var(--accent)}

/* ── Cards & Panels ── */
.panel,.metric-card,.auth-card,.install-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow);transition:var(--transition)}
.panel{padding:20px}
.panel-head{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:16px;flex-wrap:wrap}
.panel-head h2{font-size:16px;font-weight:700;letter-spacing:-.2px}
.card-grid,.stats-grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}
.metric-card{padding:18px 20px;display:grid;gap:8px;position:relative;overflow:hidden;transition:var(--transition)}
.metric-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.metric-card span{color:var(--muted);font-size:12.5px;font-weight:600;text-transform:uppercase;letter-spacing:.5px}
.metric-card strong{font-size:28px;font-weight:800;letter-spacing:-.5px;line-height:1}
.metric-card::after{content:'';position:absolute;top:0;right:0;width:80px;height:80px;background:var(--accent-bg);border-radius:0 0 0 80px;opacity:.5}
.split-layout{display:grid;gap:20px;grid-template-columns:minmax(260px,400px) 1fr}

/* ── Forms ── */
.grid-form{display:grid;gap:14px;grid-template-columns:repeat(2,minmax(0,1fr))}
.stack-form{display:grid;gap:14px}
.full-span{grid-column:1/-1}
label{display:grid;gap:6px;font-size:13px;color:var(--muted);font-weight:500}
input,textarea,select{font:inherit;width:100%;padding:10px 14px;background:var(--panel-soft);color:var(--text);border:1px solid var(--line);border-radius:8px;font-size:14px;transition:var(--transition)}
input:focus,textarea:focus,select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-bg)}
input[type="color"]{padding:4px;height:42px;cursor:pointer}
input[type="file"]{padding:8px;font-size:13px}
select{cursor:pointer;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2364748b' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center}

/* ── Notices ── */
.notice{padding:12px 16px;border-radius:8px;font-size:13.5px;font-weight:500;display:flex;align-items:center;gap:8px;animation:slideDown .3s ease}
.notice.success{background:var(--success-bg);color:var(--success);border:1px solid var(--success)}
.notice.error{background:var(--danger-bg);color:var(--danger);border:1px solid var(--danger)}
@keyframes slideDown{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}

/* ── Tables ── */
.table-wrap{overflow-x:auto;border-radius:8px;border:1px solid var(--line)}
table{width:100%;border-collapse:collapse;min-width:600px}
th,td{padding:10px 14px;text-align:left;font-size:13px;vertical-align:middle}
th{color:var(--muted);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.4px;background:var(--panel-soft);border-bottom:1px solid var(--line);position:sticky;top:0}
td{border-bottom:1px solid var(--line)}
tbody tr{transition:background .15s}
tbody tr:hover{background:var(--accent-bg)}
tbody tr:last-child td{border-bottom:none}

/* ── Badges ── */
.badge{display:inline-flex;align-items:center;padding:3px 10px;border-radius:99px;font-size:11.5px;font-weight:600;letter-spacing:.2px}
.badge.active,.badge.paid,.badge.ok{background:var(--success-bg);color:var(--success)}
.badge.suspended,.badge.failed,.badge.error{background:var(--danger-bg);color:var(--danger)}
.badge.draft,.badge.paused{background:var(--warn-bg);color:var(--warn)}
.badge.info{background:var(--accent-bg);color:var(--accent)}

/* ── Alert Feed ── */
.alert-feed{display:grid;gap:10px;max-height:400px;overflow-y:auto}
.feed-item{padding:14px;border:1px solid var(--line);border-radius:8px;background:var(--panel-soft);transition:var(--transition)}
.feed-item:hover{border-color:var(--accent);background:var(--accent-bg)}
.feed-item strong{display:block;font-size:13.5px;margin-bottom:4px}
.feed-item p{color:var(--muted);font-size:13px;margin:0 0 6px}
.feed-item span{color:var(--muted);font-size:11.5px;font-weight:500}

/* ── Search ── */
.search-input{margin-bottom:12px;background:var(--panel-soft)}

/* ── Auth ── */
.auth-shell,.install-shell{min-height:100vh;display:grid;place-items:center;padding:24px;background:linear-gradient(135deg,var(--bg) 0%,var(--panel-soft) 100%)}
[data-theme="dark"] .auth-shell,[data-theme="dark"] .install-shell{background:linear-gradient(135deg,#070d1a 0%,#0f172a 100%)}
.auth-layout{width:min(100%,440px)}
.auth-card{padding:32px;display:grid;gap:16px;text-align:center}
.auth-card h1{font-size:24px;font-weight:800;letter-spacing:-.4px}
.auth-card p{color:var(--muted);font-size:14px}
.auth-card form{text-align:left}
.auth-card .button.primary{width:100%;justify-content:center;padding:12px;font-size:14px}
.auth-card a{font-size:13px;text-align:center;display:block}
.install-card{width:min(100%,900px);padding:28px;display:grid;gap:18px}

/* ── Stepper ── */
.stepper{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:8px}
.stepper span{padding:6px 14px;border-radius:99px;background:var(--panel-soft);color:var(--muted);font-size:13px;font-weight:600;border:1px solid var(--line);transition:var(--transition)}
.stepper span.active{background:var(--accent);color:#fff;border-color:var(--accent);box-shadow:0 2px 8px rgba(79,70,229,.3)}
.check-list{list-style:none;padding:0;display:grid;gap:6px}
.check-list li{padding:8px 12px;border-radius:6px;font-size:13.5px;font-weight:500}
.check-list li.ok{color:var(--success);background:var(--success-bg)}
.check-list li.bad{color:var(--danger);background:var(--danger-bg)}
.code-block{padding:14px;border-radius:8px;background:#0f172a;color:#e2e8f0;overflow:auto;font-size:13px;font-family:'SF Mono',Consolas,monospace}

/* ── Tabs ── */
.tabs{display:flex;gap:0;border-bottom:2px solid var(--line);margin-bottom:20px;overflow-x:auto}
.tabs button{padding:10px 18px;background:none;color:var(--muted);font-weight:600;font-size:13.5px;border:none;border-bottom:2px solid transparent;margin-bottom:-2px;cursor:pointer;white-space:nowrap;transition:var(--transition)}
.tabs button.active,.tabs button:hover{color:var(--accent);border-bottom-color:var(--accent)}
.tab-pane{display:none}
.tab-pane.active{display:block}

/* ── Action Row ── */
.action-row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.action-row .button{font-size:12.5px}

/* ── Charts ── */
.chart-container{position:relative;width:100%;max-height:320px}
.chart-container canvas{width:100%!important;max-height:320px}

/* ── Toast ── */
.toast-container{position:fixed;top:20px;right:20px;z-index:9999;display:grid;gap:8px}
.toast{padding:12px 18px;background:var(--panel);border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow-lg);font-size:13.5px;font-weight:500;animation:toastIn .3s ease;max-width:360px}
.toast.toast-success{border-left:3px solid var(--success)}
.toast.toast-error{border-left:3px solid var(--danger)}
@keyframes toastIn{from{opacity:0;transform:translateX(20px)}to{opacity:1;transform:translateX(0)}}

/* ── Modal ── */
.modal-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:50;display:none;place-items:center;backdrop-filter:blur(4px)}
.modal-backdrop.open{display:grid}
.modal{background:var(--panel);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:24px;width:min(90vw,560px);max-height:85vh;overflow-y:auto;animation:modalIn .2s ease}
@keyframes modalIn{from{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}
.modal h3{font-size:18px;font-weight:700;margin-bottom:16px}

/* ── Mobile ── */
.mobile-only{display:none}
.mobile-tabs{display:none}

@media(max-width:1024px){
  .app-shell{grid-template-columns:1fr}
  .sidebar{position:fixed;inset:0 auto 0 0;transform:translateX(-100%);transition:transform .25s cubic-bezier(.4,0,.2,1);z-index:30;width:260px;box-shadow:4px 0 20px rgba(0,0,0,.3)}
  body.sidebar-open .sidebar{transform:translateX(0)}
  body.sidebar-open::before{content:'';position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:25}
  .mobile-only{display:inline-flex}
  .split-layout,.card-grid,.stats-grid,.grid-form{grid-template-columns:1fr}
  .mobile-tabs{display:flex;position:fixed;bottom:0;left:0;right:0;background:var(--panel);border-top:1px solid var(--line);padding:6px 8px env(safe-area-inset-bottom);z-index:20;justify-content:space-around;gap:4px;box-shadow:0 -2px 10px rgba(0,0,0,.06)}
  .mobile-tabs a{display:flex;flex-direction:column;align-items:center;gap:2px;font-size:10px;color:var(--muted);padding:4px 8px;border-radius:6px;font-weight:600}
  .mobile-tabs a.active{color:var(--accent);background:var(--accent-bg)}
  .mobile-tabs a svg{width:20px;height:20px}
  .content{padding-bottom:80px}
}
@media(max-width:768px){
  .topbar{padding:12px 16px;flex-wrap:wrap}
  .content{padding:14px}
  .topbar-title h1{font-size:18px}
  .user-pill strong{font-size:12px}
  .topbar-tools{width:100%;justify-content:space-between}
  table{min-width:500px}
  .panel{padding:14px}
  .metric-card strong{font-size:22px}
}

/* ── Utility ── */
.text-muted{color:var(--muted)}
.text-success{color:var(--success)}
.text-danger{color:var(--danger)}
.text-accent{color:var(--accent)}
.text-sm{font-size:12px}
.text-xs{font-size:11px}
.mt-1{margin-top:8px}
.mt-2{margin-top:16px}
.mb-1{margin-bottom:8px}
.mb-2{margin-bottom:16px}
.gap-sm{gap:8px}
.flex{display:flex;align-items:center}
.flex-between{display:flex;align-items:center;justify-content:space-between}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
hr{border:none;border-top:1px solid var(--line);margin:16px 0}

/* ── Pagination ── */
.pagination{display:flex;gap:4px;align-items:center;justify-content:center;margin-top:20px}
.pagination a,.pagination span{display:inline-flex;align-items:center;justify-content:center;min-width:32px;height:32px;padding:0 8px;border-radius:6px;font-size:13px;font-weight:600;color:var(--muted);transition:var(--transition);border:1px solid transparent}
.pagination a:hover{background:var(--panel-soft);color:var(--text);border-color:var(--line)}
.pagination .active{background:var(--accent);color:#fff;border-color:var(--accent);box-shadow:0 2px 8px rgba(79,70,229,.3)}

/* ── Toggle Switch ── */
.toggle-switch{position:relative;display:inline-flex;align-items:center;cursor:pointer;gap:8px;font-size:13.5px;font-weight:500}
.toggle-switch input{opacity:0;width:0;height:0;position:absolute}
.toggle-slider{position:relative;width:36px;height:20px;background:var(--line);border-radius:20px;transition:var(--transition)}
.toggle-slider::before{content:'';position:absolute;height:16px;width:16px;left:2px;bottom:2px;background:#fff;border-radius:50%;transition:var(--transition);box-shadow:0 1px 3px rgba(0,0,0,.2)}
.toggle-switch input:checked + .toggle-slider{background:var(--success)}
.toggle-switch input:checked + .toggle-slider::before{transform:translateX(16px)}

/* ── Bulk Select ── */
.bulk-select{width:18px;height:18px;cursor:pointer;accent-color:var(--accent)}

/* ── Print ── */
@media print{
  .sidebar,.topbar,.mobile-tabs,.toast-container{display:none!important}
  .app-shell{grid-template-columns:1fr}
  .content{padding:0}
  .panel{box-shadow:none;border:1px solid #ddd}
}