/* ==========================================================================
   Meta Ads Admin — design tokens
   ========================================================================== */
:root{
  --bg:#0a0f1e;
  --bg-elevated:#0d1426;
  --surface:#121a30;
  --surface-hover:#182140;
  --surface-2:#0f1729;
  --border:#232e4a;
  --border-strong:#2e3b5c;
  --text:#eef2fb;
  --text-muted:#94a1c2;
  --text-faint:#5c6a8c;

  --primary:#22c55e;
  --primary-hover:#1ea952;
  --primary-contrast:#04220f;
  --primary-bg:rgba(34,197,94,.12);
  --primary-border:rgba(34,197,94,.35);

  --info:#38bdf8;
  --info-bg:rgba(56,189,248,.12);
  --warning:#f5a524;
  --warning-bg:rgba(245,165,36,.14);
  --danger:#f87171;
  --danger-strong:#ef4444;
  --danger-bg:rgba(248,113,113,.13);

  --radius-sm:8px;
  --radius:12px;
  --radius-lg:18px;
  --shadow-sm:0 1px 2px rgba(0,0,0,.35);
  --shadow:0 10px 30px -12px rgba(0,0,0,.55);
  --shadow-lg:0 20px 50px -18px rgba(0,0,0,.65);

  --font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,Helvetica,Arial,sans-serif;
  --font-mono:ui-monospace,"SF Mono","Cascadia Code","JetBrains Mono","Fira Code",Menlo,Consolas,monospace;

  --ease:cubic-bezier(.4,0,.2,1);
  color-scheme:dark;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font-sans);background:var(--bg);color:var(--text);font-size:15px;line-height:1.55;-webkit-font-smoothing:antialiased}
h1,h2,h3{font-weight:650;letter-spacing:-.01em;color:var(--text)}
h1{font-size:1.5rem;margin:0}
h2{font-size:1rem;margin:0 0 4px}
p{color:var(--text-muted);margin:.25rem 0 0}
a{color:inherit}
small{color:var(--text-faint)}
code{font-family:var(--font-mono);font-size:.85em;background:var(--surface-2);padding:2px 6px;border-radius:6px;color:var(--text-muted)}

::selection{background:var(--primary-bg);color:var(--text)}

:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* ==========================================================================
   Layout
   ========================================================================== */
.topbar{
  position:sticky;top:0;z-index:20;
  height:60px;display:flex;align-items:center;gap:28px;
  padding:0 24px;background:rgba(13,20,38,.85);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--text);text-decoration:none;font-size:.98rem;letter-spacing:-.01em}
.brand-mark{width:26px;height:26px;border-radius:8px;background:linear-gradient(155deg,var(--primary),#0ea5e9);display:flex;align-items:center;justify-content:center;flex-shrink:0;box-shadow:0 0 0 1px rgba(255,255,255,.08) inset}
.brand-mark svg{width:15px;height:15px}
.topbar nav{display:flex;gap:4px;flex:1}
.topbar nav a{
  display:flex;align-items:center;gap:7px;color:var(--text-muted);text-decoration:none;
  font-size:.88rem;font-weight:500;padding:7px 12px;border-radius:var(--radius-sm);
  transition:color .15s var(--ease),background-color .15s var(--ease);
}
.topbar nav a svg{width:16px;height:16px;opacity:.85}
.topbar nav a:hover{color:var(--text);background:var(--surface-hover)}
.topbar nav a.active{color:var(--text);background:var(--surface)}
.link-button{color:var(--text-muted);text-decoration:none;background:none;border:0;cursor:pointer;font:inherit;font-size:.85rem;padding:7px 10px;border-radius:var(--radius-sm);transition:color .15s var(--ease),background-color .15s var(--ease)}
.link-button:hover{color:var(--text);background:var(--surface-hover)}
.user-chip{display:flex;align-items:center;gap:10px;min-width:0;color:var(--text-faint);font-size:.82rem}
.user-chip>span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:220px}

.container{max-width:1360px;margin:0 auto;padding:32px 24px 64px}

.page-head{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:24px;flex-wrap:wrap}
.page-head h1{margin-bottom:4px}
.page-head > div:last-child{display:flex;gap:10px;flex-wrap:wrap}

/* ==========================================================================
   Surfaces
   ========================================================================== */
.panel,.auth-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:22px;margin:16px 0;box-shadow:var(--shadow-sm);
}
.panel h2{display:flex;align-items:center;gap:8px}

.auth-shell{
  position:relative;overflow:hidden;
  min-height:calc(100vh - 60px);display:flex;align-items:center;justify-content:center;padding:24px;
  background:radial-gradient(ellipse 900px 500px at 50% -5%,rgba(34,197,94,.10),transparent 65%),var(--bg);
}
.auth-shell::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(34,197,94,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(34,197,94,.06) 1px,transparent 1px);
  background-size:38px 38px;
  -webkit-mask-image:radial-gradient(ellipse 700px 500px at 50% 38%,#000 0%,transparent 72%);
  mask-image:radial-gradient(ellipse 700px 500px at 50% 38%,#000 0%,transparent 72%);
}
.auth-shell::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(to bottom,rgba(255,255,255,.03) 0px,rgba(255,255,255,.03) 1px,transparent 1px,transparent 3px);
  animation:auth-scan 10s linear infinite;
}
@keyframes auth-scan{from{background-position-y:0}to{background-position-y:180px}}

.auth-card{position:relative;z-index:1;max-width:400px;width:100%;margin:0;padding:0;overflow:hidden;text-align:left;border-color:var(--primary-border);box-shadow:var(--shadow-lg),0 0 60px -20px rgba(34,197,94,.35)}
.terminal-bar{display:flex;align-items:center;gap:7px;padding:11px 16px;background:var(--bg-elevated);border-bottom:1px solid var(--border)}
.terminal-bar .dot{width:10px;height:10px;border-radius:50%;flex-shrink:0}
.terminal-bar .dot.red{background:#f87171}
.terminal-bar .dot.amber{background:#f5a524}
.terminal-bar .dot.green{background:var(--primary)}
.terminal-title{margin-left:6px;font-family:var(--font-mono);font-size:.72rem;color:var(--text-faint);letter-spacing:.02em}
.auth-card-body{padding:32px}
.auth-card .brand-mark{width:40px;height:40px;border-radius:11px;margin-bottom:18px;box-shadow:0 0 0 1px rgba(255,255,255,.08) inset,0 0 26px -2px rgba(34,197,94,.55)}
.auth-card .brand-mark svg{width:22px;height:22px}
.auth-card h1{font-size:1.3rem;margin-bottom:4px}
.auth-card p{margin-bottom:22px}
.auth-card input{font-family:var(--font-mono);letter-spacing:.01em}
.terminal-status{display:flex;align-items:center;gap:6px;margin-top:20px;padding-top:16px;border-top:1px solid var(--border);font-family:var(--font-mono);font-size:.76rem;color:var(--text-faint)}
.terminal-prompt{color:var(--primary);font-weight:700}
.terminal-cursor{display:inline-block;width:7px;height:13px;background:var(--primary);animation:auth-blink 1s step-end infinite}
@keyframes auth-blink{50%{opacity:0}}

/* ==========================================================================
   Forms
   ========================================================================== */
label{display:block;font-size:.83rem;font-weight:600;color:var(--text-muted);margin-bottom:2px}
input[type=text],input[type=email],input[type=password],input[type=date],input[type=url],select{
  width:100%;padding:10px 12px;margin-top:6px;background:var(--bg-elevated);
  border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);
  font:inherit;font-size:.9rem;transition:border-color .15s var(--ease),box-shadow .15s var(--ease);
}
input::placeholder{color:var(--text-faint)}
input:hover,select:hover{border-color:var(--border-strong)}
input:focus,select:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-bg);outline:none}
.auth-card form,.settings-form{display:grid;gap:16px}
.check{display:flex !important;flex-direction:row;gap:8px;align-items:center;font-weight:500;color:var(--text-muted)}
.check input{width:auto;margin:0}
.hint{display:block;margin-top:6px;font-size:.78rem}
.field-error{display:flex;align-items:center;gap:5px;color:var(--danger);font-size:.78rem;margin-top:6px;font-weight:500}
.field-error::before{content:"";width:4px;height:4px;border-radius:50%;background:var(--danger);flex-shrink:0}

/* ==========================================================================
   Buttons
   ========================================================================== */
.button{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  border:1px solid var(--border-strong);background:var(--surface-hover);color:var(--text);
  border-radius:var(--radius-sm);padding:9px 15px;font:inherit;font-size:.86rem;font-weight:600;
  text-decoration:none;cursor:pointer;transition:background-color .15s var(--ease),border-color .15s var(--ease),transform .1s var(--ease);
  white-space:nowrap;
}
.button:hover{background:var(--surface);border-color:var(--text-faint)}
.button:active{transform:translateY(1px)}
.button.primary{background:var(--primary);border-color:var(--primary);color:var(--primary-contrast)}
.button.primary:hover{background:var(--primary-hover);border-color:var(--primary-hover)}
.button.danger{border-color:var(--danger-bg);color:var(--danger);background:transparent}
.button.danger:hover{background:var(--danger-bg);border-color:var(--danger)}
.button.small{padding:6px 11px;font-size:.78rem}
.button svg{width:15px;height:15px}
.inline{display:inline}

/* ==========================================================================
   Filters toolbar
   ========================================================================== */
.filters{
  display:flex;flex-wrap:wrap;gap:14px;align-items:end;
  background:var(--surface);padding:16px 18px;border:1px solid var(--border);border-radius:var(--radius-lg);
  margin-bottom:20px;
}
.filters label{flex:0 1 170px;margin-bottom:0}
.filters label:has(select){flex-basis:220px}
.filters button{align-self:end;margin-left:auto}

/* ==========================================================================
   KPI cards
   ========================================================================== */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(168px,1fr));gap:12px;margin:18px 0}
.cards.kpi-row{grid-template-columns:repeat(4,1fr)}
.card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:16px 17px;transition:border-color .15s var(--ease),transform .15s var(--ease);
}
.card:hover{border-color:var(--border-strong)}
.card span{display:flex;align-items:center;gap:6px;color:var(--text-muted);font-size:.76rem;font-weight:600;text-transform:uppercase;letter-spacing:.04em}
.card strong{display:block;margin-top:8px;font-family:var(--font-mono);font-size:1.5rem;font-weight:600;color:var(--text);letter-spacing:-.01em}
.card.hero{background:linear-gradient(160deg,var(--surface),var(--surface-hover))}
.card.hero strong{font-size:1.75rem;color:var(--primary)}
.card.negative strong{color:var(--danger)}

/* ==========================================================================
   Tables
   ========================================================================== */
.table-wrap{overflow-x:auto;border-radius:var(--radius-sm);margin-top:4px}
table{width:100%;border-collapse:collapse;font-size:.86rem}
th,td{text-align:left;padding:11px 12px;border-bottom:1px solid var(--border);vertical-align:middle;white-space:nowrap}
td.wrap,.error-cell{white-space:normal}
th{color:var(--text-faint);font-size:.72rem;text-transform:uppercase;letter-spacing:.05em;font-weight:700;background:var(--surface-2);position:sticky;top:0}
tbody tr{transition:background-color .1s var(--ease)}
tbody tr:hover{background:var(--surface-hover)}
tbody tr:last-child td{border-bottom:0}
td.num,th.num{text-align:right;font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.empty-row td{text-align:center;color:var(--text-faint);padding:36px 12px}
.empty-state{display:flex;flex-direction:column;align-items:center;gap:8px;color:var(--text-faint)}
.empty-state svg{width:28px;height:28px;opacity:.5}
.error-cell{max-width:340px;color:var(--danger);font-size:.8rem}

/* ==========================================================================
   Status & alerts
   ========================================================================== */
.status{display:inline-flex;align-items:center;gap:6px;padding:3px 10px;border-radius:999px;background:var(--surface-2);color:var(--text-muted);font-size:.75rem;font-weight:600;text-transform:capitalize}
.status::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--text-faint)}
.status.active,.status.success{background:var(--primary-bg);color:var(--primary)}
.status.active::before,.status.success::before{background:var(--primary)}
.status.expired,.status.disconnected,.status.failed{background:var(--danger-bg);color:var(--danger)}
.status.expired::before,.status.disconnected::before,.status.failed::before{background:var(--danger)}
.status.running,.status.pending{background:var(--warning-bg);color:var(--warning)}
.status.running::before,.status.pending::before{background:var(--warning)}

.alert{display:flex;align-items:center;gap:10px;padding:12px 16px;border-radius:var(--radius-sm);margin-bottom:16px;background:var(--surface-2);border:1px solid var(--border);color:var(--text-muted);font-size:.86rem}
.alert.success{background:var(--primary-bg);border-color:var(--primary-border);color:var(--primary)}
.alert.danger{background:var(--danger-bg);border-color:rgba(248,113,113,.35);color:var(--danger)}
.alert.warning{background:var(--warning-bg);border-color:rgba(245,165,36,.35);color:var(--warning)}

/* ==========================================================================
   Tutorial (numbered steps)
   ========================================================================== */
.tutorial{background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px 26px;margin:16px 0}
.tutorial h2{margin-bottom:2px}
.tutorial > p{margin-bottom:20px;max-width:60ch}
.tutorial-steps{list-style:none;margin:0;padding:0;counter-reset:step;display:grid;grid-template-columns:repeat(2,1fr);gap:20px 24px}
.tutorial-steps li{counter-increment:step;display:grid;grid-template-columns:28px 1fr;gap:12px;align-items:start}
.tutorial-steps li::before{content:counter(step);width:28px;height:28px;border-radius:50%;background:var(--primary-bg);border:1px solid var(--primary-border);color:var(--primary);font-size:.8rem;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.tutorial-steps li strong{display:block;color:var(--text);font-weight:600;margin-bottom:2px}
.tutorial-steps li p{margin:0;font-size:.88rem;max-width:46ch}
.tutorial a{color:var(--info);text-decoration:underline;text-underline-offset:2px}
.tutorial-note{margin-top:20px;padding-top:18px;border-top:1px solid var(--border);font-size:.85rem;max-width:70ch}
.callout{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;background:var(--bg-elevated);border:1px dashed var(--border-strong);border-radius:var(--radius-sm);padding:12px 14px;margin-top:8px}
.callout code{background:none;padding:0;color:var(--info);font-size:.86rem;word-break:break-all}
.callout span.callout-label{color:var(--text-faint);font-size:.72rem;text-transform:uppercase;letter-spacing:.05em;font-weight:700;display:block;margin-bottom:3px}

/* ==========================================================================
   Settings page
   ========================================================================== */
.settings-grid{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:20px;align-items:start}
.settings-grid .tutorial,.settings-grid .settings-panel{margin:0}
.settings-panel{position:sticky;top:76px}
.settings-status{display:inline-flex;align-items:center;gap:8px;font-size:.85rem;font-weight:600;color:var(--text-muted);margin-bottom:18px;padding-bottom:18px;border-bottom:1px solid var(--border)}
.settings-status .dot{width:8px;height:8px;border-radius:50%;background:var(--text-faint)}
.settings-status.ok{color:var(--primary)}
.settings-status.ok .dot{background:var(--primary);box-shadow:0 0 0 4px var(--primary-bg)}
.settings-status.pending{color:var(--warning)}
.settings-status.pending .dot{background:var(--warning);box-shadow:0 0 0 4px var(--warning-bg)}
.settings-form{max-width:none}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media(max-width:960px){
  .cards.kpi-row{grid-template-columns:repeat(2,1fr)}
  .settings-grid{grid-template-columns:1fr}
  .settings-panel{position:static}
}

@media(max-width:680px){
  .tutorial-steps{grid-template-columns:1fr}
}

@media(max-width:800px){
  .container{padding:20px 16px 40px}
  .panel,.auth-card,.tutorial{padding:16px}
  .filters{flex-direction:column;align-items:stretch;padding:14px}
  .filters label{flex-basis:auto;width:100%}
  .filters button{margin-left:0;width:100%}
  .page-head{flex-direction:column;align-items:stretch}
  .page-head>div:last-child{flex-direction:column}
  .page-head>div:last-child .button,.page-head>div:last-child form{width:100%}
  .page-head>div:last-child form .button{width:100%}
  .topbar{padding:0 14px;gap:10px}
  .topbar nav{gap:0}
  .topbar nav a span{display:none}
  .topbar nav a{padding:11px}
  .user-chip{gap:6px}
  .user-chip>span{display:none}
  .button{min-height:40px}
  .button.small{min-height:34px}
  th,td{padding:10px}
  .tutorial li{grid-template-columns:24px 1fr;gap:10px}
  .tutorial li::before{width:24px;height:24px;font-size:.74rem}
}

@media(max-width:480px){
  .cards.kpi-row{grid-template-columns:1fr 1fr}
  .card{padding:13px 14px}
  .card strong{font-size:1.3rem}
  .card.hero strong{font-size:1.5rem}
  .auth-card{padding:24px 20px}
}