/* ═══════════════════════════════════════════════
   WireGuard Manager — Design System
   Dark glassmorphism + indigo/violet palette
   ═══════════════════════════════════════════════ */

:root {
  --bg:           #07070f;
  --bg-2:         #0e0e1a;
  --bg-3:         #14142a;
  --surface:      rgba(255,255,255,0.04);
  --surface-h:    rgba(255,255,255,0.07);
  --border:       rgba(255,255,255,0.08);
  --border-h:     rgba(255,255,255,0.15);

  --primary:      #6366f1;
  --primary-h:    #818cf8;
  --primary-d:    #4f46e5;
  --accent:       #8b5cf6;
  --success:      #10b981;
  --warning:      #f59e0b;
  --danger:       #ef4444;
  --info:         #3b82f6;

  --text:         #f1f5f9;
  --text-2:       #94a3b8;
  --text-3:       #475569;

  --radius:       12px;
  --radius-lg:    18px;
  --radius-xl:    24px;
  --sidebar-w:    240px;
  --transition:   0.2s cubic-bezier(0.4,0,0.2,1);
}

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

html { font-size: 15px; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
}

/* ── Loading screen ─────────────────────────────── */
.loading-screen {
  position: fixed; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  background: var(--bg);
  gap: 28px; z-index: 1000;
  transition: opacity 0.4s ease;
}
.loader-logo {
  display: flex; align-items: center; gap: 14px;
  font-size: 1.4rem; font-weight: 600; letter-spacing: -0.02em;
  color: var(--text);
}
.loader-bar {
  width: 200px; height: 3px; background: var(--border);
  border-radius: 100px; overflow: hidden;
}
.loader-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 100px;
  animation: loadbar 1.2s ease-in-out infinite;
}
@keyframes loadbar {
  0% { width: 0%; margin-left: 0; }
  50% { width: 70%; margin-left: 15%; }
  100% { width: 0%; margin-left: 100%; }
}

/* ── Glass utility ─────────────────────────────── */
.glass {
  background: rgba(14,14,26,0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
}

/* ── View system ───────────────────────────────── */
.view { min-height: 100vh; }
.hidden { display: none !important; }

/* ── Login ─────────────────────────────────────── */
.login-bg {
  position: fixed; inset: 0;
  background: radial-gradient(ellipse at 30% 20%, rgba(99,102,241,0.15) 0%, transparent 60%),
              radial-gradient(ellipse at 70% 80%, rgba(139,92,246,0.12) 0%, transparent 60%),
              var(--bg);
  z-index: 0;
}
.bg-orb {
  position: absolute; border-radius: 50%; filter: blur(80px); pointer-events: none;
}
.orb1 { width: 600px; height: 600px; background: rgba(99,102,241,0.12); top: -200px; left: -200px; }
.orb2 { width: 400px; height: 400px; background: rgba(139,92,246,0.1); bottom: -100px; right: -100px; }
.orb3 { width: 300px; height: 300px; background: rgba(16,185,129,0.07); top: 50%; left: 50%; transform: translate(-50%,-50%); }

#login-view {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh; position: relative;
}
.login-card {
  position: relative; z-index: 1;
  width: 100%; max-width: 400px; padding: 40px;
  border-radius: var(--radius-xl);
  box-shadow: 0 32px 64px rgba(0,0,0,0.5), 0 0 0 1px var(--border);
}
.login-logo {
  display: flex; align-items: center; gap: 14px; margin-bottom: 36px;
}
.login-logo h1 { font-size: 1.2rem; font-weight: 700; letter-spacing: -0.02em; }
.login-logo p { font-size: 0.8rem; color: var(--text-2); }

/* ── Forms ─────────────────────────────────────── */
.field { margin-bottom: 18px; }
.field label {
  display: block; font-size: 0.8rem; font-weight: 500;
  color: var(--text-2); margin-bottom: 7px; letter-spacing: 0.02em;
}
input, select, textarea {
  width: 100%; padding: 11px 14px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text); font-family: inherit; font-size: 0.9rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.15);
}
input::placeholder { color: var(--text-3); }
select { cursor: pointer; appearance: none; }
select option { background: var(--bg-2); }

/* ── Buttons ───────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 20px; border-radius: var(--radius); font-family: inherit;
  font-size: 0.875rem; font-weight: 500; cursor: pointer; border: none;
  transition: all var(--transition); text-decoration: none; white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  box-shadow: 0 4px 14px rgba(99,102,241,0.35);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(99,102,241,0.45); }
.btn-primary:active { transform: translateY(0); }
.btn-secondary {
  background: var(--surface); border: 1px solid var(--border); color: var(--text-2);
}
.btn-secondary:hover { background: var(--surface-h); border-color: var(--border-h); color: var(--text); }
.btn-danger {
  background: rgba(239,68,68,0.12); border: 1px solid rgba(239,68,68,0.3); color: var(--danger);
}
.btn-danger:hover { background: rgba(239,68,68,0.2); }
.btn-success {
  background: rgba(16,185,129,0.12); border: 1px solid rgba(16,185,129,0.3); color: var(--success);
}
.btn-success:hover { background: rgba(16,185,129,0.2); }
.btn-warning {
  background: rgba(245,158,11,0.12); border: 1px solid rgba(245,158,11,0.3); color: var(--warning);
}
.btn-warning:hover { background: rgba(245,158,11,0.2); }
.btn-full { width: 100%; }
.btn-sm { padding: 7px 14px; font-size: 0.8rem; }
.btn-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 36px; height: 36px; border-radius: 9px;
  background: var(--surface); border: 1px solid var(--border); color: var(--text-2);
  cursor: pointer; transition: all var(--transition);
}
.btn-icon:hover { background: var(--surface-h); color: var(--text); }

.btn-loader {
  width: 16px; height: 16px; border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.3); border-top-color: #fff;
  animation: spin 0.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Alerts ────────────────────────────────────── */
.alert {
  padding: 10px 14px; border-radius: var(--radius);
  font-size: 0.85rem; margin-bottom: 16px;
}
.alert-error { background: rgba(239,68,68,0.12); border: 1px solid rgba(239,68,68,0.3); color: #fca5a5; }
.alert-success { background: rgba(16,185,129,0.12); border: 1px solid rgba(16,185,129,0.3); color: #6ee7b7; }
.alert-info { background: rgba(59,130,246,0.12); border: 1px solid rgba(59,130,246,0.3); color: #93c5fd; }
.alert-warning { background: rgba(245,158,11,0.12); border: 1px solid rgba(245,158,11,0.3); color: #fcd34d; }

/* ── Sidebar ───────────────────────────────────── */
.sidebar {
  position: fixed; top: 0; left: 0; bottom: 0;
  width: var(--sidebar-w);
  display: flex; flex-direction: column;
  border-right: 1px solid var(--border);
  border-radius: 0;
  z-index: 100; padding: 20px 16px;
}
.sidebar-logo {
  display: flex; align-items: center; gap: 10px;
  font-weight: 700; font-size: 1rem; letter-spacing: -0.02em;
  padding: 8px 8px 20px;
  border-bottom: 1px solid var(--border); margin-bottom: 16px;
}
.sidebar-nav { flex: 1; display: flex; flex-direction: column; gap: 2px; }
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; border-radius: 10px;
  color: var(--text-2); cursor: pointer; font-size: 0.875rem; font-weight: 500;
  transition: all var(--transition); border: none; background: none;
  text-align: left; width: 100%;
}
.nav-item:hover { background: var(--surface); color: var(--text); }
.nav-item.active { background: rgba(99,102,241,0.15); color: var(--primary-h); }
.nav-item svg { flex-shrink: 0; opacity: 0.8; }
.nav-section-title {
  font-size: 0.7rem; font-weight: 600; letter-spacing: 0.08em;
  color: var(--text-3); padding: 14px 12px 6px; text-transform: uppercase;
}
.sidebar-footer {
  display: flex; align-items: center; gap: 10px;
  padding-top: 16px; border-top: 1px solid var(--border);
}
.user-chip {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
  min-width: 0;
  cursor: pointer;
  padding: 6px 8px;
  border-radius: 8px;
  margin-left: -8px;
  transition: background var(--transition);
}
.user-chip:hover {
  background: var(--surface);
}
.user-avatar {
  width: 32px; height: 32px; border-radius: 50%; flex-shrink: 0;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem; font-weight: 700; color: #fff;
}
.user-info { min-width: 0; }
.user-name { display: block; font-size: 0.82rem; font-weight: 600; truncate: ellipsis; white-space: nowrap; overflow: hidden; }
.user-role { display: block; font-size: 0.72rem; color: var(--text-3); }
.logout-btn { flex-shrink: 0; color: var(--text-3); }
.logout-btn:hover { color: var(--danger) !important; border-color: rgba(239,68,68,0.3) !important; }

/* ── Main content ──────────────────────────────── */
.main-content {
  margin-left: var(--sidebar-w);
  min-height: 100vh;
  padding: 32px;
  background: radial-gradient(ellipse at 80% 0%, rgba(99,102,241,0.06) 0%, transparent 50%),
              var(--bg);
}
.page-header {
  margin-bottom: 32px;
}
.page-title {
  font-size: 1.8rem; font-weight: 700; letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--text) 40%, var(--primary-h));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.page-subtitle { color: var(--text-2); margin-top: 6px; font-size: 0.9rem; }

/* ── Cards / Stats ─────────────────────────────── */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin-bottom: 32px; }
.stat-card {
  padding: 22px; border-radius: var(--radius-lg);
  background: var(--surface); border: 1px solid var(--border);
  transition: border-color var(--transition), transform var(--transition);
}
.stat-card:hover { border-color: var(--border-h); transform: translateY(-2px); }
.stat-icon {
  width: 40px; height: 40px; border-radius: 10px; margin-bottom: 14px;
  display: flex; align-items: center; justify-content: center;
}
.stat-icon.purple { background: rgba(99,102,241,0.15); color: var(--primary-h); }
.stat-icon.green  { background: rgba(16,185,129,0.15); color: var(--success); }
.stat-icon.amber  { background: rgba(245,158,11,0.15); color: var(--warning); }
.stat-icon.blue   { background: rgba(59,130,246,0.15); color: var(--info); }
.stat-value { font-size: 2rem; font-weight: 700; letter-spacing: -0.03em; }
.stat-label { font-size: 0.8rem; color: var(--text-2); margin-top: 4px; }

/* ── Tables ────────────────────────────────────── */
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); overflow: hidden;
}
.card-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 24px; border-bottom: 1px solid var(--border);
}
.card-title { font-weight: 600; font-size: 1rem; }
.card-body { padding: 24px; }
table { width: 100%; border-collapse: collapse; }
thead tr { border-bottom: 1px solid var(--border); }
th { padding: 10px 16px; text-align: left; font-size: 0.75rem; font-weight: 600; color: var(--text-3); text-transform: uppercase; letter-spacing: 0.06em; }
tbody tr { border-bottom: 1px solid var(--border); transition: background var(--transition); }
tbody tr:last-child { border-bottom: none; }
tbody tr:hover { background: var(--surface-h); }
td { padding: 14px 16px; font-size: 0.875rem; color: var(--text-2); }
td.primary { color: var(--text); font-weight: 500; }

/* ── Badges / Status ───────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 3px 10px; border-radius: 100px; font-size: 0.72rem; font-weight: 600;
}
.badge-online  { background: rgba(16,185,129,0.15); color: var(--success); border: 1px solid rgba(16,185,129,0.25); }
.badge-offline { background: rgba(239,68,68,0.12); color: #f87171; border: 1px solid rgba(239,68,68,0.2); }
.badge-deploying { background: rgba(245,158,11,0.12); color: var(--warning); border: 1px solid rgba(245,158,11,0.2); }
.badge-unknown { background: var(--surface); color: var(--text-3); border: 1px solid var(--border); }
.badge-admin  { background: rgba(99,102,241,0.15); color: var(--primary-h); border: 1px solid rgba(99,102,241,0.25); }
.badge-client { background: var(--surface); color: var(--text-2); border: 1px solid var(--border); }
.status-dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.status-dot.pulse { animation: pulse-dot 2s ease-in-out infinite; }
@keyframes pulse-dot { 0%,100%{opacity:1;} 50%{opacity:0.4;} }

/* ── Client Portal ─────────────────────────────── */
.connect-hero {
  text-align: center; padding: 60px 32px 40px;
}
.connect-status-ring {
  width: 120px; height: 120px; margin: 0 auto 24px;
  border-radius: 50%; position: relative;
  display: flex; align-items: center; justify-content: center;
  background: radial-gradient(circle, rgba(99,102,241,0.08), transparent 70%);
}
.connect-status-ring::before {
  content: ''; position: absolute; inset: -3px; border-radius: 50%;
  border: 2px solid transparent;
  background: linear-gradient(var(--bg), var(--bg)) padding-box,
              linear-gradient(135deg, var(--primary), var(--accent)) border-box;
  animation: ring-spin 4s linear infinite;
}
@keyframes ring-spin { to { transform: rotate(360deg); } }
.connect-status-ring svg { z-index: 1; }

.connect-ip { font-size: 0.85rem; color: var(--text-3); margin-top: 8px; }
.connect-subtitle { color: var(--text-2); margin-top: 10px; max-width: 400px; margin-left: auto; margin-right: auto; }

/* ── Location picker ───────────────────────────── */
.locations-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 14px;
  margin-top: 24px;
}
.location-card {
  padding: 20px; border-radius: var(--radius-lg); cursor: pointer;
  border: 1.5px solid var(--border);
  background: var(--surface);
  transition: all var(--transition);
  position: relative; overflow: hidden;
}
.location-card::before {
  content: ''; position: absolute; inset: 0; opacity: 0;
  background: linear-gradient(135deg, rgba(99,102,241,0.07), rgba(139,92,246,0.07));
  transition: opacity var(--transition);
}
.location-card:hover { border-color: var(--primary); transform: translateY(-3px); box-shadow: 0 12px 30px rgba(0,0,0,0.3); }
.location-card:hover::before { opacity: 1; }
.location-card.selected { border-color: var(--primary); background: rgba(99,102,241,0.08); }
.location-card.selected::before { opacity: 1; }
.location-flag { font-size: 2rem; margin-bottom: 10px; }
.location-name { font-weight: 600; font-size: 0.9rem; }
.location-ip   { font-size: 0.75rem; color: var(--text-3); margin-top: 3px; font-family: 'JetBrains Mono', monospace; }
.location-status { display: flex; align-items: center; gap: 6px; margin-top: 10px; font-size: 0.75rem; }
.location-check {
  position: absolute; top: 12px; right: 12px;
  width: 22px; height: 22px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: opacity var(--transition);
}
.location-card.selected .location-check { opacity: 1; }

/* ── Config panel ──────────────────────────────── */
.config-panel {
  display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 24px;
}
.config-block {
  padding: 24px; border-radius: var(--radius-lg);
  background: var(--surface); border: 1px solid var(--border);
}
.config-block h3 { font-size: 0.9rem; font-weight: 600; margin-bottom: 16px; display: flex; align-items: center; gap: 8px; }
.config-code {
  font-family: 'JetBrains Mono', monospace; font-size: 0.75rem;
  color: var(--text-2); background: rgba(0,0,0,0.3); border-radius: 8px;
  padding: 14px; white-space: pre-wrap; word-break: break-all;
  line-height: 1.6; max-height: 200px; overflow-y: auto;
}
.qr-container { display: flex; align-items: center; justify-content: center; }
.qr-container img { border-radius: 12px; border: 3px solid rgba(99,102,241,0.3); }

/* ── Modal ─────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px); z-index: 500;
  display: flex; align-items: center; justify-content: center; padding: 16px;
  animation: fadeIn 0.15s ease;
}
@keyframes fadeIn { from{opacity:0} to{opacity:1} }
.modal {
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: var(--radius-xl); padding: 32px;
  width: 100%; max-width: 480px;
  box-shadow: 0 32px 64px rgba(0,0,0,0.6);
  animation: slideUp 0.2s ease;
}
@keyframes slideUp { from{transform:translateY(20px);opacity:0} to{transform:translateY(0);opacity:1} }
.modal-title { font-size: 1.1rem; font-weight: 700; margin-bottom: 24px; }
.modal-actions { display: flex; gap: 10px; margin-top: 24px; justify-content: flex-end; }

/* ── Scrollbar ─────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-h); border-radius: 100px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-3); }

/* ── Misc ──────────────────────────────────────── */
.actions-row { display: flex; gap: 8px; align-items: center; }
.text-mono { font-family: 'JetBrains Mono', monospace; font-size: 0.8rem; }
.text-muted { color: var(--text-3); }
.divider { height: 1px; background: var(--border); margin: 24px 0; }
.flex { display: flex; align-items: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-4 { margin-top: 32px; }
.mb-2 { margin-bottom: 16px; }
.empty-state {
  text-align: center; padding: 60px 24px; color: var(--text-3);
}
.empty-state svg { margin-bottom: 16px; opacity: 0.3; }
.empty-state p { font-size: 0.9rem; }

/* ── Connection Flow ───────────────────────────── */
.connection-flow {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 20px;
  margin: 30px auto 40px;
  max-width: 500px;
}
.flow-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  width: 100px;
  transition: all var(--transition);
}
.flow-node .node-icon {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-3);
  border: 1px solid var(--border);
  color: var(--text-3);
  transition: all var(--transition);
}
.flow-node.active .node-icon {
  background: rgba(99,102,241,0.1);
  border-color: var(--primary);
  color: var(--primary-h);
  box-shadow: 0 0 15px rgba(99,102,241,0.2);
}
.flow-node.active.exit-node .node-icon {
  background: rgba(16,185,129,0.1);
  border-color: var(--success);
  color: var(--success);
  box-shadow: 0 0 15px rgba(16,185,129,0.25);
}
.flow-node.inactive.exit-node .node-icon {
  background: rgba(245,158,11,0.06);
  border-color: var(--warning);
  color: var(--warning);
  opacity: 0.8;
}
.flow-node .node-icon svg {
  width: 24px;
  height: 24px;
}
.flow-node .node-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-2);
  text-align: center;
  white-space: nowrap;
  max-width: 100px;
  overflow: hidden;
  text-overflow: ellipsis;
}
.flow-node.active .node-label {
  color: var(--text);
  font-weight: 600;
}
.flow-line {
  flex: 1;
  height: 6px;
  position: relative;
  max-width: 80px;
  background-image: radial-gradient(circle, var(--border) 1.5px, transparent 1.5px);
  background-size: 12px 100%;
  background-repeat: repeat-x;
  background-position: 0 center;
  opacity: 0.4;
  transition: all var(--transition);
  margin-top: 24px;
}
.flow-line.active {
  background-image: radial-gradient(circle, var(--primary-h) 2px, transparent 2px);
  background-size: 14px 100%;
  background-repeat: repeat-x;
  background-position: 0 center;
  animation: flow-dots 0.8s linear infinite;
  opacity: 1;
}
.flow-line.warning-line {
  background-image: radial-gradient(circle, var(--warning) 2px, transparent 2px);
  background-size: 14px 100%;
  background-repeat: repeat-x;
  background-position: 0 center;
  animation: flow-dots 1.2s linear infinite;
  opacity: 1;
}
.flow-line.inactive {
  background-image: radial-gradient(circle, var(--border) 1.5px, transparent 1.5px);
  background-size: 12px 100%;
  background-repeat: repeat-x;
  background-position: 0 center;
  opacity: 0.3;
}
@keyframes flow-dots {
  from { background-position: 0 center; }
  to { background-position: 14px center; }
}

.connection-flow .flow-line {
  background-image: none !important;
}

/* ── Responsive ────────────────────────────────── */
@media (max-width: 768px) {
  .sidebar { width: 64px; }
  .sidebar-logo span, .nav-item span, .nav-section-title, .user-info { display: none; }
  .main-content { margin-left: 64px; padding: 20px; }
  .config-panel { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  
  .sidebar-footer {
    flex-direction: column;
    align-items: center;
    gap: 12px;
  }
  .user-chip {
    margin-left: 0;
    padding: 0;
  }
}