*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #111113;
  --surface: #1a1a1f;
  --surface2: #222228;
  --border: #2e2e35;
  --text: #e4e4e7;
  --text-dim: #8e8e96;
  --accent: #6d9fff;
  --accent-hover: #5588ee;
  --danger: #ef4444;
  --success: #22c55e;
  --warning: #f59e0b;
  --radius: 6px;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --mono: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
}

body { font-family: var(--font); background: var(--bg); color: var(--text); font-size: 14px; line-height: 1.5; }

/* Login */
.login-screen { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-card { background: var(--surface); padding: 2rem; border-radius: 8px; border: 1px solid var(--border); width: 340px; display: flex; flex-direction: column; gap: 1rem; }
.login-card h1 { font-size: 1.25rem; font-weight: 600; text-align: center; color: var(--text-dim); letter-spacing: 0.5px; }
.login-card input { padding: 0.6rem 0.75rem; background: var(--surface2); border: 1px solid var(--border); border-radius: var(--radius); color: var(--text); font-size: 14px; outline: none; }
.login-card input:focus { border-color: var(--accent); }
.login-card button { padding: 0.6rem; background: var(--accent); color: #fff; border: none; border-radius: var(--radius); font-size: 14px; font-weight: 500; cursor: pointer; }
.login-card button:hover { background: var(--accent-hover); }
.login-card button:disabled { opacity: 0.5; cursor: not-allowed; }
.error { color: var(--danger); font-size: 13px; text-align: center; }

/* App layout */
.app { display: grid; grid-template-columns: 200px 1fr; min-height: 100vh; }

.sidebar { background: var(--surface); border-right: 1px solid var(--border); padding: 1rem 0; display: flex; flex-direction: column; position: sticky; top: 0; height: 100vh; }
.sidebar-brand { padding: 0.5rem 1.25rem 1.25rem; font-weight: 600; font-size: 15px; color: var(--text-dim); letter-spacing: 0.5px; border-bottom: 1px solid var(--border); margin-bottom: 0.5rem; }
.nav-link { display: block; padding: 0.5rem 1.25rem; color: var(--text-dim); text-decoration: none; font-size: 14px; transition: color 0.15s, background 0.15s; }
.nav-link:hover { color: var(--text); background: var(--surface2); }
.nav-link.active { color: var(--accent); background: var(--surface2); }
.nav-logout { margin-top: auto; padding: 0.5rem 1.25rem; background: none; border: none; color: var(--text-dim); font-size: 13px; text-align: left; cursor: pointer; }
.nav-logout:hover { color: var(--danger); }

.content { padding: 1.5rem 2rem; overflow-y: auto; }

/* Section header */
.section-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.25rem; }
.section-header h2 { font-size: 1.1rem; font-weight: 600; }

/* Cards */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1rem; margin-bottom: 1.5rem; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem 1.25rem; }
.card-title { font-weight: 600; font-size: 14px; margin-bottom: 0.5rem; }
.card-row { display: flex; justify-content: space-between; font-size: 13px; color: var(--text-dim); padding: 2px 0; }
.card-row span:last-child { color: var(--text); }

/* Tables */
table { width: 100%; border-collapse: collapse; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
th, td { padding: 0.5rem 0.75rem; text-align: left; border-bottom: 1px solid var(--border); font-size: 13px; }
th { background: var(--surface2); color: var(--text-dim); font-weight: 500; font-size: 12px; text-transform: uppercase; letter-spacing: 0.4px; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(109, 159, 255, 0.03); }

/* Buttons */
.btn { padding: 0.35rem 0.75rem; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface2); color: var(--text); font-size: 13px; cursor: pointer; white-space: nowrap; }
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn-sm { padding: 0.2rem 0.5rem; font-size: 12px; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); color: #fff; }
.btn-danger { border-color: var(--danger); color: var(--danger); }
.btn-danger:hover { background: var(--danger); color: #fff; }

/* Status badges */
.badge { display: inline-block; padding: 2px 8px; border-radius: 10px; font-size: 11px; font-weight: 500; }
.badge-ok { background: rgba(34,197,94,0.15); color: var(--success); }
.badge-error { background: rgba(239,68,68,0.15); color: var(--danger); }
.badge-warn { background: rgba(245,158,11,0.15); color: var(--warning); }
.badge-idle { background: rgba(142,142,150,0.15); color: var(--text-dim); }

/* Forms */
.form-row { display: flex; gap: 0.75rem; margin-bottom: 0.75rem; flex-wrap: wrap; }
.form-field { display: flex; flex-direction: column; gap: 0.25rem; flex: 1; min-width: 160px; }
.form-field label { font-size: 12px; color: var(--text-dim); }
.form-field input, .form-field select { padding: 0.4rem 0.6rem; background: var(--surface2); border: 1px solid var(--border); border-radius: var(--radius); color: var(--text); font-size: 13px; outline: none; }
.form-field input:focus, .form-field select:focus { border-color: var(--accent); }

/* Modal */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.6); display: flex; align-items: center; justify-content: center; z-index: 100; }
.modal { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 1.5rem; min-width: 400px; max-width: 90vw; }
.modal h3 { margin-bottom: 1rem; font-size: 15px; }
.modal-actions { display: flex; gap: 0.5rem; justify-content: flex-end; margin-top: 1rem; }

/* Key reveal */
.key-reveal { background: var(--surface2); border: 1px solid var(--border); border-radius: var(--radius); padding: 0.75rem; margin-top: 0.75rem; font-family: var(--mono); font-size: 13px; word-break: break-all; user-select: all; }

/* Misc */
.empty { text-align: center; padding: 2rem; color: var(--text-dim); }
.mt { margin-top: 1.5rem; }
.mb { margin-bottom: 1rem; }
.flex-gap { display: flex; gap: 0.5rem; align-items: center; }
.mono { font-family: var(--mono); font-size: 12px; }
.truncate { max-width: 200px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }