:root{
  --bg1:#ffffff;
  --bg2:#f8fafc;
  --bg3:#eef2f7;
  --tx1:#172033;
  --tx2:#475569;
  --tx3:#8391a5;
  --bd1:#e2e8f0;
  --bd2:#cbd5e1;
  --blue:#2563eb;
  --blue-bg:#dbeafe;
  --blue-tx:#1e40af;
  --green:#059669;
  --green-bg:#d1fae5;
  --green-tx:#065f46;
  --red:#dc2626;
  --red-bg:#fee2e2;
  --red-tx:#991b1b;
  --amber:#d97706;
  --amber-bg:#fef3c7;
  --amber-tx:#92400e;
  --pink-bg:#fce7f3;
  --pink-tx:#9d174d;
  --radius:8px;
  --shadow:0 12px 30px rgba(15,23,42,.08);
}
*{box-sizing:border-box;margin:0;padding:0;}
body{min-height:100vh;background:var(--bg3);color:var(--tx1);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;}
.app{display:grid;grid-template-columns:246px 1fr;min-height:100vh;}
.sidebar{position:sticky;top:0;height:100vh;background:var(--bg1);border-right:1px solid var(--bd1);display:flex;flex-direction:column;padding:14px 12px;}
.brand{display:flex;align-items:center;gap:10px;}
.logo{width:36px;height:36px;border-radius:8px;background:linear-gradient(135deg,#2f6df6,#594fe0);color:#fff;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;letter-spacing:.4px;box-shadow:0 8px 18px rgba(37,99,235,.22);}
.brand-name{font-weight:650;font-size:14px;}
.brand-sub{font-size:11px;color:var(--tx3);margin-top:1px;}
.nav{display:flex;flex-direction:column;gap:4px;margin-top:24px;}
.nav-item{width:100%;display:flex;align-items:center;gap:10px;padding:9px 10px;border:none;border-radius:var(--radius);background:transparent;color:var(--tx2);font-size:13px;font-family:inherit;text-align:left;cursor:pointer;}
.nav-item:hover{background:var(--bg2);color:var(--tx1);}
.nav-item.active{background:var(--blue-bg);color:var(--blue-tx);font-weight:600;}
.dot{width:6px;height:6px;border-radius:50%;background:var(--bd2);}
.nav-item.active .dot{background:var(--blue);}
.userbox{margin-top:auto;border-top:1px solid var(--bd1);padding-top:12px;}
.user-email{font-size:12px;color:var(--tx2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;margin-bottom:8px;}
.main{padding:24px 28px 36px;min-width:0;}
.topbar{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:16px;}
h1{font-size:22px;font-weight:650;letter-spacing:0;margin-bottom:4px;}
.topbar p,.card-head p{font-size:13px;color:var(--tx3);}
.status-chips{display:flex;gap:6px;align-items:center;flex-wrap:wrap;justify-content:flex-end;}
.chip,.badge{display:inline-flex;align-items:center;padding:3px 9px;border-radius:999px;font-size:11px;font-weight:600;white-space:nowrap;}
.b-blue{background:var(--blue-bg);color:var(--blue-tx);}
.b-green{background:var(--green-bg);color:var(--green-tx);}
.b-red{background:var(--red-bg);color:var(--red-tx);}
.b-amber{background:var(--amber-bg);color:var(--amber-tx);}
.b-pink{background:var(--pink-bg);color:var(--pink-tx);}
.b-gray{background:var(--bg3);color:var(--tx2);}
.view{display:none;}
.view.active{display:block;}
.kpi-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-bottom:16px;}
.kpi{background:var(--bg1);border:1px solid var(--bd1);border-radius:var(--radius);padding:14px 16px;}
.kpi-label{font-size:11px;color:var(--tx3);text-transform:uppercase;letter-spacing:.3px;}
.kpi-value{font-size:24px;font-weight:700;margin-top:2px;font-variant-numeric:tabular-nums;}
.schedule-grid{display:grid;grid-template-columns:minmax(360px,430px) minmax(0,1fr);gap:16px;align-items:start;}
.card{background:var(--bg1);border:1px solid var(--bd1);border-radius:var(--radius);box-shadow:var(--shadow);}
.compose-card,.list-card,.card{padding:16px;}
.card-head{display:flex;justify-content:space-between;align-items:flex-start;gap:10px;margin-bottom:14px;}
.card h2{font-size:15px;font-weight:650;margin-bottom:3px;}
.list-head{align-items:center;}
.field{margin-bottom:12px;}
.field.two{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
label{display:block;font-size:11px;font-weight:650;color:var(--tx3);text-transform:uppercase;letter-spacing:.25px;margin-bottom:5px;}
input,select,textarea{width:100%;border:1px solid var(--bd2);border-radius:var(--radius);background:var(--bg2);color:var(--tx1);font-family:inherit;font-size:13px;padding:9px 10px;outline:none;}
input:focus,select:focus,textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(37,99,235,.12);}
textarea{min-height:126px;resize:vertical;line-height:1.55;}
.inline-field{display:flex;gap:8px;}
.inline-field input{flex:1;}
.platform-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;}
.platform-grid label{display:flex;align-items:center;justify-content:center;gap:6px;min-height:38px;border:1px solid var(--bd2);border-radius:var(--radius);background:var(--bg2);color:var(--tx1);font-size:12px;text-transform:none;letter-spacing:0;font-weight:600;cursor:pointer;margin:0;}
.platform-grid input{width:auto;accent-color:var(--blue);}
.preview{border:1px solid var(--bd1);border-radius:var(--radius);background:var(--bg2);padding:12px;font-size:12px;color:var(--tx2);line-height:1.55;}
.preview.empty{color:var(--tx3);text-align:center;padding:24px 12px;}
.preview-title{font-size:14px;font-weight:650;color:var(--tx1);margin-bottom:2px;}
.preview-sub{font-size:11px;color:var(--tx3);margin-bottom:10px;}
.caption-box{max-height:180px;overflow:auto;border:1px solid var(--bd1);border-radius:var(--radius);background:var(--bg1);padding:10px;margin-top:8px;}
.media-row{display:flex;gap:6px;flex-wrap:wrap;margin-top:10px;}
.media-row span{display:inline-flex;padding:4px 8px;border:1px solid var(--bd1);border-radius:999px;background:var(--bg1);font-size:11px;color:var(--tx2);}
.actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px;}
.btn{border:none;border-radius:var(--radius);padding:9px 14px;font-family:inherit;font-size:13px;font-weight:600;cursor:pointer;transition:opacity .15s,transform .15s,background .15s;}
.btn:disabled{opacity:.55;cursor:not-allowed;}
.btn:active:not(:disabled){transform:scale(.98);}
.btn-primary{background:var(--blue);color:#fff;}
.btn-ghost{background:var(--bg2);border:1px solid var(--bd2);color:var(--tx2);}
.btn-ghost:hover{background:var(--bg3);color:var(--tx1);}
.btn-red{background:var(--red);color:#fff;}
.btn-sm{font-size:12px;padding:6px 10px;}
.filters{display:flex;gap:8px;flex-wrap:wrap;}
.filters select{width:auto;min-width:140px;padding:7px 9px;}
.table-wrap{overflow-x:auto;}
table{width:100%;border-collapse:collapse;min-width:760px;}
th{text-align:left;font-size:11px;text-transform:uppercase;letter-spacing:.35px;color:var(--tx3);padding:11px 10px;border-bottom:1px solid var(--bd2);}
td{padding:11px 10px;border-bottom:1px solid var(--bd1);font-size:13px;vertical-align:middle;}
tr:hover td{background:var(--bg2);}
.mono{font-variant-numeric:tabular-nums;}
.post-title{font-weight:650;}
.post-sub{font-size:11px;color:var(--tx3);margin-top:2px;}
.post-error{font-size:11px;color:var(--red-tx);margin-top:4px;}
.folders-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:10px;}
.folder-card{border:1px solid var(--bd1);border-radius:var(--radius);padding:12px;background:var(--bg2);}
.folder-title{font-weight:650;font-size:13px;margin-bottom:3px;}
.folder-path{font-size:11px;color:var(--tx3);word-break:break-all;margin-bottom:8px;}
.folder-card p{font-size:12px;color:var(--tx2);line-height:1.5;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.settings-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:10px;}
.setting-item{border:1px solid var(--bd1);border-radius:var(--radius);background:var(--bg2);padding:12px;}
.setting-label{font-size:11px;color:var(--tx3);text-transform:uppercase;letter-spacing:.3px;margin-bottom:4px;}
.setting-value{font-size:13px;color:var(--tx1);word-break:break-all;}
.help-text{font-size:11px;color:var(--tx3);margin-top:5px;}
.channels-grid{display:grid;grid-template-columns:minmax(320px,420px) minmax(0,1fr);gap:16px;align-items:start;margin-bottom:16px;}
.channel-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;}
.channel-card{border:1px solid var(--bd1);border-radius:var(--radius);background:var(--bg2);padding:12px;}
.channel-top{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-bottom:10px;}
.channel-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:8px;}
.integrations-card{margin-top:0;}
.integrations-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:8px;}
.integration-row{display:flex;justify-content:space-between;align-items:center;gap:10px;border:1px solid var(--bd1);border-radius:var(--radius);background:var(--bg2);padding:10px;}
.integration-row code{font-size:11px;color:var(--tx2);word-break:break-all;text-align:right;}
.browser-layout{display:grid;grid-template-columns:minmax(320px,390px) minmax(0,1fr);gap:16px;align-items:start;}
.browser-type{min-height:84px;}
.browser-status-list{display:grid;gap:8px;margin-top:14px;}
.browser-status-row{display:flex;align-items:center;justify-content:space-between;gap:10px;border:1px solid var(--bd1);border-radius:var(--radius);background:var(--bg2);padding:10px;}
.browser-screen-card{min-width:0;}
.browser-screen-wrap{position:relative;border:1px solid var(--bd1);border-radius:var(--radius);background:#0f172a;min-height:420px;display:flex;align-items:center;justify-content:center;overflow:hidden;}
#browser-screen{display:none;width:100%;height:auto;max-height:calc(100vh - 190px);object-fit:contain;cursor:crosshair;}
#browser-empty{background:transparent;border:none;color:#cbd5e1;}
#toast{position:fixed;right:18px;top:18px;z-index:30;display:flex;flex-direction:column;gap:8px;}
.toast{padding:11px 14px;border-radius:var(--radius);box-shadow:var(--shadow);font-size:13px;color:#fff;animation:slide .2s ease-out;}
.toast.ok{background:var(--green);}
.toast.err{background:var(--red);}
@keyframes slide{from{transform:translateX(40px);opacity:0;}to{transform:translateX(0);opacity:1;}}
.login-page{background:linear-gradient(180deg,#eef2f7,#f8fafc);}
.login-shell{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;}
.login-card{width:100%;max-width:380px;background:var(--bg1);border:1px solid var(--bd1);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px;}
.login-brand{margin-bottom:22px;}
.login-card h1{font-size:22px;margin-bottom:4px;}
.login-card p{font-size:13px;color:var(--tx3);margin-bottom:18px;}
.login-card label{margin-top:12px;}
.login-card .btn{width:100%;margin-top:16px;}
.login-error{min-height:18px;color:var(--red-tx);font-size:12px;margin-top:10px;}
@media(max-width:1080px){.app{grid-template-columns:1fr;}.sidebar{position:relative;height:auto;flex-direction:row;align-items:center;gap:16px;overflow-x:auto}.nav{margin-top:0;flex-direction:row}.userbox{margin-top:0;margin-left:auto;border-top:none;padding-top:0;display:flex;align-items:center;gap:8px}.schedule-grid,.channels-grid,.browser-layout{grid-template-columns:1fr}.main{padding:18px}}
@media(max-width:720px){.topbar{flex-direction:column}.kpi-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.field.two{grid-template-columns:1fr}.platform-grid,.channel-cards{grid-template-columns:repeat(2,minmax(0,1fr))}.filters,.filters select,.inline-field{width:100%}.inline-field{flex-direction:column}.sidebar{align-items:flex-start;flex-wrap:wrap}.userbox{width:100%;margin-left:0}.main{padding:14px}.card{padding:14px}}
@media(max-width:520px){.channel-cards{grid-template-columns:1fr}.integration-row{align-items:flex-start;flex-direction:column}.integration-row code{text-align:left}}