/* ---- Modern minimalist theme ---- */
:root{
  --bg:#f8fafc;
  --text:#0f172a;
  --muted:#64748b;
  --surface:#ffffff;
  --surface-border:#e2e8f0;
  /* Forest green theme */
  --brand:#166534;
  --brand-600:#15803d;
  --danger:#b91c1c;
}

*{box-sizing:border-box}
body{
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,sans-serif;
  margin:0;
  color:var(--text);
  background:var(--bg);
}
a{color:var(--brand);text-decoration:none}

/* Header layout: brand (logo + name) left, tools center, account/auth right */
header{
  background:#0b3a2a;
  color:#fff;
  padding:12px 20px;
}
header .header-bar{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:12px;
  max-width:1100px;
  margin:0 auto;
}
header .brand{display:flex;align-items:center;gap:12px}
header .brand a{color:#fff;font-weight:700;letter-spacing:.2px}
header .brand h1{font-size:20px;margin:0}
header .tools-nav{justify-self:center;display:flex;align-items:center;gap:10px}
header .tools-nav a{color:#fff;opacity:.95;padding:6px 10px;border-radius:8px;border:1px solid transparent}
header .tools-nav a:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.12)}
header .actions{justify-self:end;display:flex;align-items:center;gap:10px}
header .logo-slot{display:block;width:40px;min-width:40px;height:32px;border-radius:6px;background:#fff;opacity:1}
header .auth-links{display:flex;align-items:center;gap:12px}
header .auth-links a{color:#fff;opacity:.95;padding:6px 10px;border-radius:8px;border:1px solid transparent}
header .auth-links a:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.12)}

/* Main container */
main{max-width:920px;margin:24px auto;padding:0 16px}

/* Cards and content */
.hero{
  background:linear-gradient(180deg, rgba(22,101,52,.06), rgba(22,101,52,0)) , var(--surface);
  border:1px solid var(--surface-border);
  border-radius:12px;
  padding:24px
}
.content{background:var(--surface);border:1px solid var(--surface-border);border-radius:12px;padding:20px}
.card{max-width:440px;margin:24px auto;background:var(--surface);border:1px solid var(--surface-border);border-radius:12px;padding:20px}

/* Typography */
.muted{color:var(--muted)}
.status{margin-top:10px;color:var(--danger)}

/* Forms */
label{display:block;margin-bottom:12px;font-weight:600}
label > input, label > textarea, label > select{width:100%;margin-top:6px;padding:10px 12px;border:1px solid #cbd5e1;border-radius:8px;background:#fff;color:var(--text)}
textarea{resize:vertical}
.row{display:flex;gap:8px}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 14px;border-radius:10px;border:1px solid #cbd5e1;background:#fff;color:var(--text);margin-right:8px;cursor:pointer;transition:transform .02s ease,box-shadow .15s ease}
.btn:hover{box-shadow:0 1px 2px rgba(15,23,42,.06),0 2px 8px rgba(15,23,42,.06)}
.btn:active{transform:translateY(1px)}
.btn:focus-visible{outline:3px solid rgba(14,165,233,.35);outline-offset:2px}
.btn[disabled], .btn:disabled{opacity:.6;cursor:not-allowed}
.btn.primary{background:var(--brand);color:#fff;border-color:var(--brand)}
.btn.primary:hover{background:var(--brand-600);border-color:var(--brand-600)}

/* Button loading state */
.btn.loading{position:relative;pointer-events:none}
.btn.loading::before{content:"";width:14px;height:14px;border-radius:50%;border:2px solid #fff;border-right-color:transparent;display:inline-block;animation:spin 0.9s linear infinite}
.btn.loading:not(.primary)::before{border-color:#64748b;border-right-color:transparent}
@keyframes spin{to{transform:rotate(360deg)}}

/* Google button */
.btn-google{display:inline-flex;align-items:center;gap:10px;background:#fff;color:#3c4043;border:1px solid #dadce0;border-radius:8px}
.btn-google .g-icon{width:18px;height:18px}
.btn-google:hover{box-shadow:0 1px 1px rgba(60,64,67,.08),0 1px 3px rgba(60,64,67,.16)}

/* Account dropdown */
.account{position:relative}
.account-trigger{color:#fff;background:transparent;border:1px solid rgba(255,255,255,.25)}
.account-trigger .caret{display:inline-block;width:0;height:0;margin-left:8px;vertical-align:middle;border-left:5px solid transparent;border-right:5px solid transparent;border-top:6px solid #fff;opacity:.8}
.account-menu{position:absolute;right:0;top:calc(100% + 8px);min-width:200px;background:#fff;color:var(--text);border:1px solid var(--surface-border);border-radius:10px;box-shadow:0 10px 30px rgba(15,23,42,.12);padding:6px;z-index:40}
.account-menu a,.account-menu button{display:block;width:100%;text-align:left;border:0;background:transparent;color:var(--text);padding:10px 12px;border-radius:8px;cursor:pointer}
.account-menu a:hover,.account-menu button:hover{background:#f1f5f9}
[hidden]{display:none !important}

/* Utility */
.cta{margin-top:16px}

/* Footer */
footer{margin-top:32px;padding:20px}
footer .footer-bar{max-width:1100px;margin:0 auto;display:flex;align-items:center;justify-content:center;gap:10px;color:var(--muted)}
footer a{color:var(--muted)}

@media (max-width:720px){
  header .tools-nav{display:none}
}

/* Dark mode */
@media (prefers-color-scheme: dark){
  :root{
    --bg:#0b1210;
    --text:#e2e8f0;
    --muted:#94a3b8;
    --surface:#0f1a16;
    --surface-border:#1f2d27;
  }
  header{background:#0a2b20}
  .btn{background:#0f1a16;border-color:#1f2d27;color:var(--text)}
  .btn:hover{box-shadow:0 1px 2px rgba(0,0,0,.4),0 2px 8px rgba(0,0,0,.25)}
}

/* QR controls: make color inputs clearly visible */
.qr-controls input[type="color"]{
  appearance:none;
  -webkit-appearance:none;
  width:64px;
  height:40px;
  padding:0;
  border:1px solid #cbd5e1;
  border-radius:8px;
  background:transparent;
  cursor:pointer;
}
.qr-controls input[type="color"]::-webkit-color-swatch-wrapper{padding:0;border-radius:8px}
.qr-controls input[type="color"]::-webkit-color-swatch{border:none;border-radius:7px}
.qr-controls input[type="color"]::-moz-color-swatch{border:none;border-radius:7px}