/* ============================================================
   ONLINE SIMPLE — design system
   Vercel/Linear-class: light-first, single Cobalt accent,
   hairline borders, soft depth, purposeful motion. Dark-mode ready.
   ============================================================ */

:root {
  /* Palette — light */
  --canvas:        #FAFAFA;
  --surface:       #FFFFFF;
  --surface-2:     #F5F5F6;
  --border:        #ECECEC;
  --border-strong: #E0E0E2;
  --text:          #0A0A0A;
  --text-2:        #666666;
  --text-3:        #9A9A9A;
  --accent:        #2D5BFF;   /* Cobalt */
  --accent-hover:  #1E47E0;
  --accent-weak:   #EEF2FF;
  --success:       #0A7D33;
  --success-weak:  #E7F6EC;
  --warning:       #8A6100;
  --warning-weak:  #FFF4D6;
  --danger:        #C0362C;
  --danger-weak:   #FBEAE8;

  --radius:    12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --shadow:    0 1px 2px rgba(16,17,20,.04), 0 8px 24px rgba(16,17,20,.05);
  --shadow-sm: 0 1px 2px rgba(16,17,20,.06);
  --ring:      0 0 0 3px rgba(45,91,255,.18);

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, 'SF Mono', 'Geist Mono', 'JetBrains Mono', Menlo, monospace;
  --ease: cubic-bezier(.16,.84,.44,1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --canvas:#0A0A0B; --surface:#141416; --surface-2:#1B1B1E; --border:#26262A;
    --border-strong:#33333A; --text:#F5F5F6; --text-2:#A0A0A8; --text-3:#6B6B72;
    --accent:#5B7CFF; --accent-hover:#7790FF; --accent-weak:#1A2142;
    --success:#3FCB6E; --success-weak:#11261A; --warning:#E5B458; --warning-weak:#2A2310;
    --danger:#F0796E; --danger-weak:#2A1614;
    --shadow:0 1px 2px rgba(0,0,0,.4),0 8px 24px rgba(0,0,0,.45);
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--canvas); color: var(--text);
  font-family: var(--font); font-size: 15px; line-height: 1.55;
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }
h1,h2,h3,h4 { letter-spacing: -.02em; line-height: 1.15; margin: 0 0 .4em; font-weight: 650; }
h1 { font-size: 2.6rem; } h2 { font-size: 1.7rem; } h3 { font-size: 1.2rem; }
p { margin: 0 0 1rem; color: var(--text-2); }
small { color: var(--text-3); }
.mono { font-family: var(--mono); font-size: .85em; }

/* Layout helpers */
.container { width: 100%; max-width: 1080px; margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 560px; }
.center { text-align: center; }
.muted { color: var(--text-2); }
.stack > * + * { margin-top: 16px; }
.row { display: flex; gap: 12px; align-items: center; }
.row.wrap { flex-wrap: wrap; }
.spread { justify-content: space-between; }
.grid { display: grid; gap: 20px; }
.hide { display: none !important; }

/* ---- Top nav ---- */
.nav {
  position: sticky; top: 0; z-index: 40;
  background: color-mix(in srgb, var(--canvas) 82%, transparent);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.brand { display: flex; align-items: center; gap: 9px; font-weight: 650; color: var(--text); letter-spacing: -.02em; }
.brand .dot { width: 10px; height: 10px; border-radius: 3px; background: var(--accent); box-shadow: 0 0 0 4px var(--accent-weak); }
.nav-links { display: flex; gap: 22px; align-items: center; }
.nav-links a { color: var(--text-2); font-weight: 500; font-size: .92rem; }
.nav-links a:hover { color: var(--text); }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font: inherit; font-weight: 550; font-size: .92rem; line-height: 1;
  padding: 11px 18px; border-radius: var(--radius-sm); border: 1px solid transparent;
  cursor: pointer; transition: background .16s var(--ease), transform .08s var(--ease), box-shadow .16s var(--ease);
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); color: #fff; }
.btn-ghost { background: var(--surface); color: var(--text); border-color: var(--border-strong); }
.btn-ghost:hover { background: var(--surface-2); color: var(--text); }
.btn-danger { background: var(--surface); color: var(--danger); border-color: var(--border-strong); }
.btn-danger:hover { background: var(--danger-weak); }
.btn-lg { padding: 15px 26px; font-size: 1rem; border-radius: var(--radius); }
.btn-block { width: 100%; }
.btn:disabled { opacity: .55; cursor: not-allowed; }

/* ---- Cards ---- */
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow-sm); padding: 24px;
}
.card.pad-lg { padding: 32px; }
.card-hd { display:flex; align-items:center; justify-content:space-between; margin-bottom: 16px; }
.card-hd h3 { margin: 0; }

/* ---- Forms ---- */
label { display: block; font-weight: 550; font-size: .88rem; margin-bottom: 6px; }
.input, select, textarea {
  width: 100%; font: inherit; color: var(--text); background: var(--surface);
  border: 1px solid var(--border-strong); border-radius: var(--radius-sm);
  padding: 11px 13px; transition: border-color .14s, box-shadow .14s;
}
.input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); box-shadow: var(--ring); }
.field + .field { margin-top: 16px; }
.hint { font-size: .82rem; color: var(--text-3); margin-top: 6px; }

/* ---- Badges / status ---- */
.badge {
  display: inline-flex; align-items: center; gap: 6px; font-size: .76rem; font-weight: 600;
  letter-spacing: .01em; padding: 4px 10px; border-radius: 999px; border: 1px solid transparent;
}
.badge .pip { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.badge-ok   { background: var(--success-weak); color: var(--success); }
.badge-wait { background: var(--warning-weak); color: var(--warning); }
.badge-info { background: var(--accent-weak); color: var(--accent); }
.badge-bad  { background: var(--danger-weak); color: var(--danger); }
.badge-neutral { background: var(--surface-2); color: var(--text-2); }

/* ---- Test-mode indicator ---- */
.testbar {
  background: repeating-linear-gradient(45deg, var(--warning-weak), var(--warning-weak) 12px, #fdedc4 12px, #fdedc4 24px);
  color: var(--warning); border-bottom: 1px solid #f0dca0;
  font-size: .78rem; font-weight: 650; letter-spacing: .04em; text-align: center; padding: 5px;
}
.testbar b { letter-spacing: .08em; }

/* ---- Tables ---- */
.table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.table th { text-align: left; color: var(--text-3); font-weight: 600; font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; padding: 10px 12px; border-bottom: 1px solid var(--border); }
.table td { padding: 12px; border-bottom: 1px solid var(--border); }
.table tr:hover td { background: var(--surface-2); }

/* ---- Flash / toast ---- */
.flash { padding: 12px 16px; border-radius: var(--radius-sm); margin-bottom: 16px; font-size: .9rem; border: 1px solid; }
.flash-success { background: var(--success-weak); border-color: #bfe6cb; color: var(--success); }
.flash-error   { background: var(--danger-weak);  border-color: #f0c7c2; color: var(--danger); }
.flash-info    { background: var(--accent-weak);  border-color: #cdd9ff; color: var(--accent); }

/* ---- Hero / marketing ---- */
.hero { padding: 88px 0 56px; text-align: center; }
.hero h1 { font-size: clamp(2.4rem, 6vw, 3.6rem); }
.hero .lede { font-size: 1.2rem; color: var(--text-2); max-width: 560px; margin: 0 auto 28px; }
.eyebrow { display:inline-block; font-size:.8rem; font-weight:600; color: var(--accent); background: var(--accent-weak); padding: 5px 12px; border-radius: 999px; margin-bottom: 20px; }
.price-tag { font-size: 3.4rem; font-weight: 700; letter-spacing: -.03em; }
.price-tag span { font-size: 1rem; font-weight: 500; color: var(--text-3); }
.checklist { list-style: none; padding: 0; margin: 0; text-align: left; display: inline-block; }
.checklist li { padding: 7px 0 7px 30px; position: relative; color: var(--text); }
.checklist li::before { content: "✓"; position: absolute; left: 0; color: var(--success); font-weight: 700; }

/* ---- Provisioning steps ---- */
.steps { list-style: none; padding: 0; margin: 0; }
.step { display: flex; align-items: center; gap: 14px; padding: 16px 0; border-bottom: 1px solid var(--border); opacity: .5; transition: opacity .3s var(--ease); }
.step:last-child { border-bottom: none; }
.step.active, .step.done { opacity: 1; }
.step .ic { width: 26px; height: 26px; flex: none; border-radius: 50%; display: grid; place-items: center; border: 2px solid var(--border-strong); color: var(--text-3); font-size: .8rem; transition: all .3s var(--ease); }
.step.active .ic { border-color: var(--accent); color: var(--accent); }
.step.done .ic { border-color: var(--success); background: var(--success); color: #fff; }
.step .lbl { font-weight: 550; }
.step.active .lbl::after { content: ""; }
.spinner { width: 14px; height: 14px; border: 2px solid currentColor; border-top-color: transparent; border-radius: 50%; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.pop { animation: pop .4s var(--ease); }
@keyframes pop { 0%{transform:scale(.6)} 60%{transform:scale(1.15)} 100%{transform:scale(1)} }
.fade-in { animation: fade .4s var(--ease); }
@keyframes fade { from{opacity:0; transform: translateY(6px)} to{opacity:1; transform:none} }

/* ---- Meters (usage) ---- */
.meter { height: 8px; background: var(--surface-2); border-radius: 999px; overflow: hidden; }
.meter > i { display: block; height: 100%; background: var(--accent); border-radius: 999px; transition: width .5s var(--ease); }
.meter.warn > i { background: var(--warning); }

/* ---- Dashboard shell ---- */
.app-shell { display: grid; grid-template-columns: 232px 1fr; min-height: calc(100vh - 60px); }
.side { border-right: 1px solid var(--border); padding: 24px 16px; }
.side a { display: block; padding: 9px 12px; border-radius: var(--radius-sm); color: var(--text-2); font-weight: 500; font-size: .92rem; }
.side a:hover { background: var(--surface-2); color: var(--text); }
.side a.on { background: var(--accent-weak); color: var(--accent); }
.main { padding: 32px; max-width: 880px; }
.page-hd { margin-bottom: 24px; }
.page-hd h1 { font-size: 1.8rem; }

/* ---- Modal ---- */
.modal-bg { position: fixed; inset: 0; background: rgba(10,10,12,.4); display: grid; place-items: center; z-index: 60; padding: 20px; animation: fade .2s var(--ease); }
.modal { background: var(--surface); border-radius: var(--radius-lg); box-shadow: var(--shadow); max-width: 460px; width: 100%; padding: 28px; animation: fade .25s var(--ease); }

/* ---- Auth chooser (OAuth buttons) ---- */
.auth-wrap { max-width: 460px; margin: 0 auto; padding: 56px 24px; text-align: center; }
.auth-wrap .brand { justify-content: center; font-size: 1.5rem; margin-bottom: 28px; }
.auth-wrap .brand .dot { width: 13px; height: 13px; }
.auth-title { font-size: 1.5rem; font-weight: 650; letter-spacing: -.02em; line-height: 1.25; margin: 0 auto 28px; max-width: 380px; }
.oauth-stack { display: flex; flex-direction: column; gap: 14px; }
.btn-oauth {
  display: flex; align-items: center; justify-content: center; gap: 12px;
  width: 100%; padding: 14px 18px; border: 1px solid var(--border-strong);
  border-radius: 999px; background: var(--surface); color: var(--text);
  font: inherit; font-weight: 600; font-size: .98rem; cursor: pointer;
  transition: background .15s var(--ease), border-color .15s var(--ease), box-shadow .15s var(--ease);
}
.btn-oauth:hover { background: var(--surface-2); color: var(--text); box-shadow: var(--shadow-sm); }
.btn-oauth svg { width: 20px; height: 20px; flex: none; }
.auth-foot { margin-top: 26px; color: var(--text-2); font-size: .92rem; }
.auth-foot a { font-weight: 600; }

/* ---- Footer ---- */
.footer { border-top: 1px solid var(--border); margin-top: 80px; padding: 40px 0; color: var(--text-3); font-size: .88rem; }
.footer a { color: var(--text-2); }

/* ---- Responsive ---- */
@media (max-width: 760px) {
  .app-shell { grid-template-columns: 1fr; }
  .side { display: flex; gap: 6px; overflow-x: auto; border-right: none; border-bottom: 1px solid var(--border); padding: 10px 12px; }
  .side a { white-space: nowrap; }
  .nav-links { gap: 14px; }
  .main { padding: 22px 18px; }
}