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

:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --surface2: #22263a;
  --border: #2e3250;
  --accent: #4f6ef7;
  --accent-hover: #6b85ff;
  --green: #22c55e;
  --red: #ef4444;
  --yellow: #f59e0b;
  --text: #e2e8f0;
  --text-muted: #8892a4;
  --radius: 10px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  font-size: 14px;
  line-height: 1.5;
}

/* ── Login ─────────────────────────────────────────────────────────────────── */
.login-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 20px;
}

.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 36px;
  width: 100%;
  max-width: 380px;
  box-shadow: var(--shadow);
}

.login-logo {
  text-align: center;
  margin-bottom: 28px;
}

.login-logo h1 {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.3px;
}

.login-logo p {
  color: var(--text-muted);
  font-size: 13px;
  margin-top: 4px;
}

.form-group {
  margin-bottom: 16px;
}

label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}

input[type="text"],
input[type="password"] {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s;
}

input[type="text"]:focus,
input[type="password"]:focus {
  border-color: var(--accent);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 16px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: background 0.15s, opacity 0.15s;
  text-decoration: none;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  width: 100%;
}

.btn-primary:hover:not(:disabled) {
  background: var(--accent-hover);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 12px;
}

.btn-start {
  background: #16a34a;
  color: #fff;
}
.btn-start:hover:not(:disabled) { background: #15803d; }

.btn-stop {
  background: #b91c1c;
  color: #fff;
}
.btn-stop:hover:not(:disabled) { background: #991b1b; }

.btn-open {
  background: var(--surface2);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-open:hover { background: var(--border); }

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.btn-ghost:hover { color: var(--text); border-color: var(--text-muted); }

.error-msg {
  color: var(--red);
  font-size: 13px;
  margin-top: 12px;
  text-align: center;
  min-height: 20px;
}

/* ── Dashboard Layout ──────────────────────────────────────────────────────── */
.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 10;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.topbar-brand {
  font-weight: 700;
  font-size: 15px;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-badge {
  font-size: 13px;
  color: var(--text-muted);
}

.user-badge strong {
  color: var(--text);
}

.main-content {
  max-width: 900px;
  margin: 0 auto;
  padding: 28px 24px;
}

/* ── Section headers ───────────────────────────────────────────────────────── */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.section-title {
  font-size: 16px;
  font-weight: 700;
}

.running-badge {
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 20px;
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text-muted);
}

.running-badge.has-running {
  background: rgba(34, 197, 94, 0.1);
  border-color: rgba(34, 197, 94, 0.3);
  color: var(--green);
}

/* ── Intern group (admin view) ─────────────────────────────────────────────── */
.intern-group {
  margin-bottom: 24px;
}

.intern-group-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius) var(--radius) 0 0;
  font-weight: 600;
  font-size: 13px;
}

/* ── Client table ──────────────────────────────────────────────────────────── */
.client-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 var(--radius) var(--radius);
  overflow: hidden;
}

.client-table th {
  padding: 10px 14px;
  text-align: left;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  background: var(--surface2);
  border-bottom: 1px solid var(--border);
}

.client-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.client-table tr:last-child td {
  border-bottom: none;
}

.client-table tr:hover td {
  background: rgba(255,255,255,0.02);
}

/* Standalone table (intern view — no intern group header) */
.client-table.standalone {
  border-top: 1px solid var(--border);
  border-radius: var(--radius);
}

.client-table.standalone th:first-child,
.client-table.standalone td:first-child {
  border-radius: 0;
}

/* ── Status indicator ──────────────────────────────────────────────────────── */
.status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 500;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.status-dot.running {
  background: var(--green);
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.2);
}

.status-dot.stopped {
  background: var(--text-muted);
}

.status.running { color: var(--green); }
.status.stopped { color: var(--text-muted); }
.status.starting { color: var(--yellow, #f59e0b); }

.status-dot.starting {
  background: var(--yellow, #f59e0b);
  animation: pulse-dot 1.2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.7); }
}

.spinner {
  display: inline-block;
  width: 10px;
  height: 10px;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  vertical-align: middle;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ── Actions ───────────────────────────────────────────────────────────────── */
.actions {
  display: flex;
  gap: 6px;
}

/* ── Info bar ──────────────────────────────────────────────────────────────── */
.info-bar {
  background: rgba(79, 110, 247, 0.08);
  border: 1px solid rgba(79, 110, 247, 0.2);
  border-radius: 6px;
  padding: 10px 14px;
  font-size: 13px;
  color: #93a8ff;
  margin-bottom: 20px;
}

/* ── Toast ─────────────────────────────────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  padding: 12px 18px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  box-shadow: var(--shadow);
  z-index: 9999;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.2s, transform 0.2s;
  pointer-events: none;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.toast.success { background: #16a34a; color: #fff; }
.toast.error   { background: #b91c1c; color: #fff; }

/* ── Loading skeleton ──────────────────────────────────────────────────────── */
.skeleton {
  background: linear-gradient(90deg, var(--surface2) 25%, var(--border) 50%, var(--surface2) 75%);
  background-size: 400% 100%;
  animation: shimmer 1.4s infinite;
  border-radius: 4px;
  height: 16px;
  width: 80px;
  display: inline-block;
}

@keyframes shimmer {
  0% { background-position: 100% 0; }
  100% { background-position: -100% 0; }
}

/* ── Empty state ───────────────────────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-muted);
}

.empty-state p { font-size: 14px; margin-top: 8px; }