/* CNC Bridge Cloud Portal — minimalist dark UI */

:root {
  --bg: #0f1419;
  --surface: #161c24;
  --surface-2: #1f2630;
  --bg-elev-2: #232b36;
  --border: #2c3540;
  --text: #e6edf3;
  --text-muted: #94a3b8;
  --text-faint: #64748b;
  --accent: #60a5fa;
  --accent-hover: #93c5fd;
  --accent-soft: rgba(96,165,250,.15);
  --success: #34d399;
  --warn: #fbbf24;
  --danger: #f87171;
  --info: #38bdf8;
  --radius: 10px;
  --radius-sm: 6px;
  --font-mono: ui-monospace, "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;
  --shadow: 0 8px 24px rgba(0,0,0,.30);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; min-height: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  font-size: 14px;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }
.muted { color: var(--text-muted); }
.small { font-size: 12px; }
.mono { font-family: var(--font-mono); }
code { font-family: var(--font-mono); background: var(--bg-elev-2); padding: 1px 6px; border-radius: 4px; }

/* Topbar */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 28px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 700; color: var(--text); font-size: 16px;
}
.brand:hover { color: var(--text); }
.brand-cloud { color: var(--accent); }
nav { display: flex; align-items: center; gap: 14px; }
.nav-link { color: var(--text-muted); font-size: 13px; }
.nav-link:hover { color: var(--text); }
.link-btn { background: none; border: none; padding: 0; color: var(--text-muted); cursor: pointer; font: inherit; }

/* Layout */
.content {
  max-width: 1100px; margin: 0 auto;
  padding: 32px 28px 60px;
}
.footer {
  text-align: center; padding: 18px;
  border-top: 1px solid var(--border);
  background: var(--surface);
}

/* Hero / landing */
.hero { text-align: center; padding: 60px 20px 40px; }
.hero h1 { font-size: 32px; margin: 0 0 12px; }
.hero p { font-size: 16px; max-width: 640px; margin: 0 auto; }
.cta-row { display: flex; gap: 12px; justify-content: center; margin-top: 24px; flex-wrap: wrap; }
.features {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px; margin-top: 60px;
}
.feature {
  padding: 22px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.feature h3 { margin: 0 0 8px; font-size: 16px; }
.feature p { margin: 0; color: var(--text-muted); font-size: 13px; }

/* Auth card */
.auth-card {
  max-width: 380px; margin: 60px auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
}
.auth-card h2 { margin: 0 0 6px; }
.auth-card form { display: flex; flex-direction: column; gap: 12px; margin-top: 18px; }
.auth-card label { display: flex; flex-direction: column; gap: 5px; font-size: 13px; color: var(--text-muted); }
.auth-card input {
  background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 10px 12px; color: var(--text); font: inherit;
}
.auth-card input:focus {
  outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft);
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  background: var(--surface-2); color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  font-size: 13px; font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: background .12s ease, border-color .12s ease;
}
.btn:hover { background: var(--bg-elev-2); border-color: var(--text-muted); }
.btn-primary { background: var(--accent); color: white; border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-hover); color: white; border-color: var(--accent-hover); }
.btn-danger { background: transparent; color: var(--danger); border-color: transparent; }
.btn-danger:hover { background: rgba(248,113,113,.10); border-color: var(--danger); color: var(--danger); }
.btn-ghost { background: transparent; border-color: transparent; color: var(--text-muted); }
.btn-ghost:hover { background: var(--bg-elev-2); color: var(--text); }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-block { width: 100%; }

/* Cards / alert */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-top: 24px;
}
.card h2 { margin: 0 0 14px; }
.alert { border-left: 4px solid var(--info); padding-left: 14px; }
.alert-error { border-left-color: var(--danger); background: rgba(248,113,113,.06); color: var(--danger); padding: 10px 14px; border-radius: 4px; }
.alert-info { border-left-color: var(--info); background: rgba(56,189,248,.06); }
form label { display: flex; flex-direction: column; gap: 4px; margin-bottom: 12px; font-size: 13px; color: var(--text-muted); }
form input, form select, form textarea {
  background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 8px 10px; color: var(--text); font: inherit;
}
form input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }

/* Dashboard */
.dash-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; gap: 12px; flex-wrap: wrap; }
.dash-head h1 { margin: 0 0 4px; }
.empty-state { text-align: center; padding: 50px 20px; color: var(--text-muted); }

/* Device cards */
.device-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px; margin-top: 18px;
}
.device-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--text-faint);
  border-radius: var(--radius);
  padding: 16px 18px;
}
.device-card:has(.badge-ok) { border-left-color: var(--success); }
.device-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; margin-bottom: 10px; }
.device-name { font-weight: 700; font-size: 16px; }
.device-slug { font-family: var(--font-mono); font-size: 11px; color: var(--text-muted); }
.device-body dl { display: grid; grid-template-columns: 100px 1fr; gap: 4px 12px; margin: 8px 0; font-size: 12px; }
.device-body dt { color: var(--text-muted); }
.device-body dd { margin: 0; }
.device-actions { display: flex; gap: 8px; margin-top: 10px; }

/* Badge */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 3px 8px; border-radius: 999px;
  background: var(--bg-elev-2); color: var(--text-muted);
  font-size: 11px; font-weight: 600;
  border: 1px solid var(--border);
}
.badge-ok { color: var(--success); border-color: rgba(52,211,153,.3); background: rgba(52,211,153,.08); }
.badge-idle { color: var(--text-muted); }

/* Enrollment kod listesi */
.code-list { list-style: none; padding: 0; margin: 14px 0 0; display: flex; flex-direction: column; gap: 8px; }
.code-list li { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.big-code {
  font-family: var(--font-mono); font-size: 22px; font-weight: 700;
  color: var(--accent);
  background: var(--bg-elev-2); padding: 6px 14px;
  border-radius: var(--radius-sm); letter-spacing: 4px;
}
.cmd-block {
  background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-family: var(--font-mono); font-size: 12px;
  overflow-x: auto;
  margin-top: 8px;
}