/* ===== CSS VARIABLES ===== */
:root {
  --bg: #f5f6fa;
  --bg-surface: #ffffff;
  --bg-subtle: #f0f1f7;
  --border: #e4e6ef;
  --text-primary: #111827;
  --text-secondary: #6b7280;
  --text-muted: #9ca3af;
  --accent: #2563eb;
  --accent-light: #eff6ff;
  --accent-hover: #1d4ed8;
  --green: #10b981;
  --green-light: #ecfdf5;
  --red: #ef4444;
  --yellow: #f59e0b;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.07), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08), 0 1px 4px rgba(0,0,0,0.04);
  --shadow-lg: 0 10px 32px rgba(0,0,0,0.10), 0 2px 8px rgba(0,0,0,0.06);
  --radius: 18px;
  --radius-sm: 12px;
  --radius-xs: 8px;
  --transition: 180ms cubic-bezier(0.4, 0, 0.2, 1);
  --topbar-h: 64px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

[data-theme="dark"] {
  --bg: #0f1117;
  --bg-surface: #181c27;
  --bg-subtle: #1e2332;
  --border: #272d3f;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent: #3b82f6;
  --accent-light: #1e3a5f;
  --accent-hover: #60a5fa;
  --green: #34d399;
  --green-light: #064e3b;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3), 0 1px 2px rgba(0,0,0,0.2);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.4), 0 1px 4px rgba(0,0,0,0.2);
  --shadow-lg: 0 10px 32px rgba(0,0,0,0.5), 0 2px 8px rgba(0,0,0,0.3);
}

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

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text-primary);
  min-height: 100vh;
  transition: background var(--transition), color var(--transition);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.hidden { display: none !important; }

/* ===== LOGIN OVERLAY ===== */
#login-overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  z-index: 1000;
}

#login-overlay.fade-out {
  opacity: 0;
  pointer-events: none;
  transition: opacity 300ms ease;
}

.login-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 48px 40px;
  width: 100%;
  max-width: 400px;
  text-align: center;
  animation: slideUp 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.login-logo img {
  width: 64px;
  height: 64px;
  object-fit: contain;
  border-radius: 16px;
  margin-bottom: 20px;
}

.login-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
  letter-spacing: -0.02em;
}

.login-subtitle {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 28px;
}

.login-form { display: flex; flex-direction: column; gap: 12px; }

.login-input {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--radius-xs);
  border: 1.5px solid var(--border);
  background: var(--bg-subtle);
  color: var(--text-primary);
  font-size: 15px;
  font-family: var(--font);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.login-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 15%, transparent);
}

.login-btn {
  padding: 12px 20px;
  border-radius: var(--radius-xs);
  border: none;
  background: var(--accent);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 2px 8px color-mix(in srgb, var(--accent) 40%, transparent);
}

.login-btn:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px color-mix(in srgb, var(--accent) 40%, transparent);
}

.login-btn:active { transform: translateY(0); }

.login-error {
  font-size: 13px;
  color: var(--red);
  font-weight: 500;
  display: none;
  animation: shake 300ms ease;
}

.login-error.show { display: block; }

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25%       { transform: translateX(-6px); }
  75%       { transform: translateX(6px); }
}

/* ===== TOP BAR ===== */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  background: color-mix(in srgb, var(--bg-surface) 85%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}

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

.topbar-logo {
  width: 34px;
  height: 34px;
  object-fit: contain;
  border-radius: 8px;
}

.topbar-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.dark-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-xs);
  border: 1.5px solid var(--border);
  background: var(--bg-surface);
  color: var(--text-secondary);
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), color var(--transition), transform var(--transition);
}

.dark-toggle:hover {
  background: var(--bg-subtle);
  color: var(--text-primary);
  transform: rotate(15deg);
}

.clock {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
  background: var(--bg-subtle);
  border: 1.5px solid var(--border);
  padding: 6px 12px;
  border-radius: var(--radius-xs);
  min-width: 86px;
  text-align: center;
}

.logout-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: var(--radius-xs);
  border: 1.5px solid var(--border);
  background: var(--bg-surface);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), color var(--transition), transform var(--transition);
}

.logout-btn:hover {
  background: #fef2f2;
  border-color: #fca5a5;
  color: #dc2626;
  transform: translateY(-1px);
}

[data-theme="dark"] .logout-btn:hover {
  background: #450a0a;
  border-color: #7f1d1d;
  color: #f87171;
}

/* ===== MAIN ===== */
.main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 28px 60px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

/* ===== CARDS ===== */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 28px;
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition), background var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
}

.card-title-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
}

.card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}

.card-tag {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  padding: 3px 9px;
  border-radius: 999px;
}

/* ===== STATUS CARD ===== */
.status-card {
  background: linear-gradient(140deg, #1e40af 0%, #4f46e5 55%, #7c3aed 100%);
  border-color: transparent;
  color: #fff;
  padding: 28px 28px 22px;
}

.status-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.status-title-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}

.status-indicator-wrap {
  display: flex;
  align-items: center;
}

.status-title {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
}

/* Status badge */
.status-badge {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  padding: 5px 13px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.3);
  background: rgba(255,255,255,0.15);
  color: #fff;
  transition: background var(--transition), border-color var(--transition);
  white-space: nowrap;
}

.status-badge.online   { background: rgba(74,222,128,0.25); border-color: rgba(74,222,128,0.5); }
.status-badge.degraded { background: rgba(248,113,113,0.3); border-color: rgba(248,113,113,0.5); }
.status-badge.partial  { background: rgba(251,191,36,0.25); border-color: rgba(251,191,36,0.5); }
.status-badge.checking { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.2); }

/* ===== PING GRID ===== */
.ping-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 18px;
}

.ping-card {
  background: rgba(0,0,0,0.2);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: background var(--transition);
}

.ping-card:hover { background: rgba(0,0,0,0.28); }

.ping-card-top {
  display: flex;
  align-items: center;
  gap: 10px;
}

.ping-host-name {
  font-size: 12px;
  font-weight: 600;
  color: rgba(255,255,255,0.9);
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ping-card-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.ping-status-text {
  font-size: 13px;
  font-weight: 700;
  color: rgba(255,255,255,0.75);
}

.ping-ms {
  font-size: 12px;
  font-weight: 600;
  color: rgba(255,255,255,0.5);
  font-variant-numeric: tabular-nums;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
}

/* ===== PING DOTS ===== */
.ping-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}

.ping-dot.online {
  background: #4ade80;
  box-shadow: 0 0 0 3px rgba(74,222,128,0.3);
  animation: pulse-green 2s infinite;
}

.ping-dot.degraded {
  background: #f87171;
  box-shadow: 0 0 0 3px rgba(248,113,113,0.3);
  animation: pulse-red 2s infinite;
}

.ping-dot.checking {
  background: rgba(255,255,255,0.4);
  animation: pulse-white 1s infinite;
}

@keyframes pulse-green {
  0%, 100% { box-shadow: 0 0 0 3px rgba(74,222,128,0.3); }
  50%       { box-shadow: 0 0 0 6px rgba(74,222,128,0.1); }
}

@keyframes pulse-red {
  0%, 100% { box-shadow: 0 0 0 3px rgba(248,113,113,0.3); }
  50%       { box-shadow: 0 0 0 6px rgba(248,113,113,0.1); }
}

@keyframes pulse-white {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.25; }
}

.status-updated {
  font-size: 12px;
  color: rgba(255,255,255,0.55);
}

/* ===== ANALYTICS CARD ===== */
.analytics-card {
  display: flex;
  flex-direction: column;
}

.analytics-body {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-subtle);
  border-radius: var(--radius-sm);
  min-height: 140px;
  margin-bottom: 18px;
  overflow: hidden;
}

.analytics-fallback {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: var(--text-muted);
  text-align: center;
  padding: 20px;
}

.analytics-fallback p { font-size: 13px; }

.analytics-iframe {
  width: 100%;
  height: 100%;
  min-height: 180px;
  border: none;
}

.card-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border-radius: var(--radius-xs);
  background: var(--accent);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  font-family: var(--font);
  transition: background var(--transition), transform var(--transition);
  width: 100%;
}

.card-btn:hover { background: var(--accent-hover); transform: translateY(-1px); }

/* ===== TOOLS SECTION ===== */
.section-title {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 14px;
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.tool-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.tool-icon {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.vercel-icon { background: #000; color: #fff; }
[data-theme="dark"] .vercel-icon { background: #fff; color: #000; }

.replit-icon { background: #f97316; color: #fff; }
.site-icon   { background: transparent; border: none; padding: 0; }
.sa-icon     { background: #ff6d00; color: #fff; }

.tool-info { flex: 1; }

.tool-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
  letter-spacing: -0.01em;
}

.tool-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.4;
}

.tool-last {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 500;
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  padding: 3px 8px;
  border-radius: 6px;
  align-self: flex-start;
}

.tool-btn {
  width: 100%;
  padding: 10px;
  border-radius: var(--radius-xs);
  border: 1.5px solid var(--border);
  background: var(--bg-subtle);
  color: var(--text-primary);
  font-size: 13px;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), color var(--transition), transform var(--transition);
}

.tool-btn:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  transform: translateY(-1px);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1000px) {
  .tools-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 800px) {
  .grid-top { grid-template-columns: 1fr; }
  .tools-grid { grid-template-columns: 1fr; }
  .main { padding: 20px 16px 48px; }
  .topbar { padding: 0 16px; }
  .topbar-title { font-size: 14px; }
  .status-stats { flex-direction: column; gap: 18px; }
  .stat-divider { width: 100%; height: 1px; }
  .logout-btn span { display: none; }
}

@media (max-width: 520px) {
  .login-card { padding: 36px 24px; }
  .card { padding: 20px; }
}