@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

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

:root {
  --bg: #ffffff;
  --surface: #f4f5f7;
  --border: #e5e7eb;
  --text: #1a1a1a;
  --muted: #6b7280;
  --green: #16a34a;
  --red: #ef4444;
  --orange: #f6821f;
  --orange-dark: #e5710e;
  --orange-light: #fff7ed;
  --accent: #f6821f;
}

body.dark {
  --bg: #0f1117;
  --surface: #1a1d27;
  --border: #2a2d37;
  --text: #e5e7eb;
  --muted: #6b7280;
  --green: #16a34a;
  --red: #ef4444;
  --orange: #f6821f;
  --orange-dark: #e5710e;
  --orange-light: rgba(246,130,31,0.1);
}

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

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--orange), var(--orange-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

nav { display: flex; align-items: center; gap: 1rem; }

.badge {
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--muted);
}

.badge.paid {
  background: var(--orange-light);
  color: var(--orange-dark);
  border-color: var(--orange);
}

.btn-upgrade {
  padding: 0.5rem 1rem;
  background: var(--orange);
  color: white;
  border-radius: 8px;
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 600;
}

.btn-upgrade:hover { background: var(--orange-dark); }

main { max-width: 900px; margin: 2rem auto; padding: 0 1rem; }

.add-monitor { margin-bottom: 2rem; }

#add-form {
  display: flex;
  gap: 0.5rem;
}

#add-form input {
  flex: 1;
  padding: 0.75rem 1rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 1rem;
}

#add-form input:focus { outline: none; border-color: var(--orange); box-shadow: 0 0 0 3px rgba(246,130,31,0.1); }

#add-form button {
  padding: 0.75rem 1.5rem;
  background: var(--orange);
  color: white;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
}

#add-form button:hover { background: var(--orange-dark); }

.monitor-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 0.75rem;
  cursor: pointer;
  transition: border-color 0.2s;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.monitor-card:hover { border-color: var(--orange); box-shadow: 0 1px 3px rgba(246,130,31,0.15); }

.monitor-info { display: flex; align-items: center; gap: 0.75rem; }

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.status-dot.up { background: var(--green); box-shadow: 0 0 6px var(--green); }
.status-dot.down { background: var(--red); box-shadow: 0 0 6px var(--red); }
.status-dot.unknown { background: var(--muted); }

.monitor-url {
  font-size: 0.95rem;
  font-weight: 500;
  word-break: break-all;
}

.monitor-actions { display: flex; align-items: center; gap: 0.75rem; }

.monitor-time { font-size: 0.8rem; color: var(--muted); }

.btn-delete {
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 1.1rem;
  padding: 0.25rem;
}

.btn-delete:hover { color: var(--red); }

#stats-panel {
  position: fixed;
  top: 0;
  right: 0;
  width: 440px;
  height: 100vh;
  background: var(--bg);
  border-left: 1px solid var(--border);
  padding: 1.5rem;
  overflow-y: auto;
  z-index: 10;
  box-shadow: -4px 0 20px rgba(0,0,0,0.08);
}

.btn-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  color: var(--muted);
  font-size: 1.5rem;
  cursor: pointer;
}

.btn-close:hover { color: var(--text); }

#stats-url {
  font-size: 1rem;
  margin-bottom: 1.5rem;
  word-break: break-all;
  padding-right: 2rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  text-align: center;
  padding: 1rem 0.5rem;
  background: var(--surface);
  border-radius: 8px;
  border: 1px solid var(--border);
}

.stat-value { display: block; font-size: 1.5rem; font-weight: 700; }
.stat-label { display: block; font-size: 0.75rem; color: var(--muted); margin-top: 0.25rem; }

.period-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.period-tabs button {
  padding: 0.4rem 1rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.8rem;
}

.period-tabs button:hover { border-color: var(--orange); color: var(--orange); }
.period-tabs button.active { background: var(--orange); color: white; border-color: var(--orange); }

#recent-checks { font-size: 0.85rem; }

.check-row {
  display: flex;
  justify-content: space-between;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border);
}

.check-status { font-weight: 600; }
.check-status.up { color: var(--green); }
.check-status.down { color: var(--red); }

.btn-load-more {
  display: block;
  width: 100%;
  padding: 0.5rem;
  margin-top: 0.25rem;
  background: none;
  border: 1px dashed var(--border);
  border-radius: 6px;
  color: var(--muted);
  font-size: 0.85rem;
  cursor: pointer;
}
.btn-load-more:hover { color: var(--orange); border-color: var(--orange); }

.hidden { display: none !important; }

.limit-msg { color: var(--red); font-size: 0.85rem; margin-top: 0.5rem; }

.empty-state {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--muted);
}

.empty-state p { font-size: 1.1rem; margin-bottom: 0.5rem; }

/* Header icon buttons */
.btn-icon {
  background: none;
  border: 1px solid var(--border);
  color: var(--muted);
  width: 36px;
  height: 36px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.2s, color 0.2s;
}
.btn-icon:hover { border-color: var(--orange); color: var(--text); }

/* Settings panel */
.settings-panel {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 2rem;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.settings-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.settings-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.25rem;
  margin-bottom: 1rem;
}

.settings-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.settings-header h3 { font-size: 0.95rem; font-weight: 600; }

.settings-panel .form-group {
  margin-bottom: 0.75rem;
}

.settings-panel .form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 0.3rem;
}

.settings-panel .form-group input {
  width: 100%;
  padding: 0.6rem 0.75rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 0.9rem;
  font-family: inherit;
}

.settings-panel .form-group input:focus {
  outline: none;
  border-color: var(--orange);
  box-shadow: 0 0 0 3px rgba(246,130,31,0.1);
}

.settings-actions {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  margin-top: 1rem;
}

.btn-save, .btn-test {
  padding: 0.5rem 1.25rem;
  border: none;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
}

.btn-save { background: var(--orange); color: white; }
.btn-save:hover { background: var(--orange-dark); }
.btn-save:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-test { background: var(--bg); color: var(--text); border: 1px solid var(--border); }
.btn-test:hover { border-color: var(--orange); }
.btn-test:disabled { opacity: 0.5; cursor: not-allowed; }

.save-status { font-size: 0.8rem; margin-left: 0.5rem; }
.save-status.success { color: var(--green); }
.save-status.error { color: var(--red); }

/* Toggle switch */
.toggle-switch {
  position: relative;
  width: 44px;
  height: 24px;
  display: inline-block;
}

.toggle-switch input { opacity: 0; width: 0; height: 0; }

.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background: var(--border);
  border-radius: 24px;
  transition: 0.2s;
}

.toggle-slider::before {
  content: "";
  position: absolute;
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background: white;
  border-radius: 50%;
  transition: 0.2s;
}

.toggle-switch input:checked + .toggle-slider { background: var(--orange); }
.toggle-switch input:checked + .toggle-slider::before { transform: translateX(20px); }

/* Notification overrides in stats panel */
.region-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 12px;
}

.region-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.region-card .region-name {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--muted);
  letter-spacing: 0.3px;
}

.region-card .region-status {
  font-size: 0.85rem;
  font-weight: 700;
}

.region-card .region-status.up { color: var(--green); }
.region-card .region-status.down { color: var(--red); }

.region-card .region-detail {
  font-size: 0.7rem;
  color: var(--muted);
}

.notif-overrides {
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
}

.notif-overrides h3 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.override-toggle {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  font-size: 0.85rem;
}

.override-fields {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
}

.override-fields .form-group {
  margin-bottom: 0.6rem;
}

.override-fields .form-group label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 0.2rem;
}

.override-fields .form-group input {
  width: 100%;
  padding: 0.5rem 0.6rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 0.85rem;
}

.override-fields .form-group input:focus {
  outline: none;
  border-color: var(--orange);
}

.inherit-badge {
  display: inline-block;
  font-size: 0.75rem;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  background: var(--surface);
  color: var(--muted);
  border: 1px solid var(--border);
}

.override-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.btn-sm {
  padding: 0.4rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 600;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}

.btn-sm.primary { background: var(--orange); color: white; }
.btn-sm.primary:hover { background: var(--orange-dark); }
.btn-sm.secondary { background: var(--bg); color: var(--text); border: 1px solid var(--border); }
.btn-sm.secondary:hover { border-color: var(--orange); }

/* Global Status Hero */
.global-hero {
  background: linear-gradient(135deg, #f0fdf4 0%, #ecfdf5 50%, #f0fdf4 100%);
  border: 1px solid #bbf7d0;
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  animation: fadeSlideIn 0.4s ease;
}

.global-hero.degraded {
  background: linear-gradient(135deg, #fefce8 0%, #fef9c3 50%, #fefce8 100%);
  border-color: #fde68a;
}

.global-hero.down {
  background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 50%, #fef2f2 100%);
  border-color: #fca5a5;
}

.hero-status {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.hero-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--green);
  animation: pulseGreen 2s ease-in-out infinite;
}

.global-hero.degraded .hero-dot {
  background: #eab308;
  animation: pulseYellow 1.5s ease-in-out infinite;
}

.global-hero.down .hero-dot {
  background: var(--red);
  animation: pulseRed 0.8s ease-in-out infinite;
}

.hero-label {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}

.hero-uptime { text-align: right; }

.hero-pct {
  display: block;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
}

.hero-sub {
  font-size: 0.75rem;
  color: var(--muted);
}

/* Animated status dots */
@keyframes pulseGreen {
  0%, 100% { box-shadow: 0 0 0 0 rgba(22, 163, 74, 0.4); }
  50% { box-shadow: 0 0 0 6px rgba(22, 163, 74, 0); }
}

@keyframes pulseYellow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(234, 179, 8, 0.4); }
  50% { box-shadow: 0 0 0 6px rgba(234, 179, 8, 0); }
}

@keyframes pulseRed {
  0%, 100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.5); }
  50% { box-shadow: 0 0 0 8px rgba(239, 68, 68, 0); }
}

.status-dot.up { animation: pulseGreen 2s ease-in-out infinite; }
.status-dot.down { animation: pulseRed 0.8s ease-in-out infinite; }

/* Sparkline canvas */
.sparkline-container {
  width: 120px;
  height: 32px;
  flex-shrink: 0;
}

.sparkline-container canvas {
  width: 100%;
  height: 100%;
}

/* Micro-animations */
@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Theme toggle */
.theme-toggle {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 99px;
  padding: 3px;
  display: flex;
  gap: 2px;
}

.theme-toggle button {
  border: none;
  background: none;
  cursor: pointer;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--muted);
  transition: background 0.2s, color 0.2s;
}

.theme-toggle button.active {
  background: var(--border);
  color: var(--text);
}

.theme-toggle button:hover:not(.active) { color: var(--text); }

/* Dark mode overrides for hardcoded colors */
body.dark .global-hero {
  background: linear-gradient(135deg, rgba(22,163,74,0.08) 0%, rgba(22,163,74,0.04) 100%);
  border-color: rgba(22,163,74,0.3);
}

body.dark .global-hero.degraded {
  background: linear-gradient(135deg, rgba(234,179,8,0.08) 0%, rgba(234,179,8,0.04) 100%);
  border-color: rgba(234,179,8,0.3);
}

body.dark .global-hero.down {
  background: linear-gradient(135deg, rgba(239,68,68,0.08) 0%, rgba(239,68,68,0.04) 100%);
  border-color: rgba(239,68,68,0.3);
}

body.dark .monitor-card {
  box-shadow: none;
}

body.dark .badge.paid {
  background: rgba(246,130,31,0.1);
  color: #f6821f;
}

body.dark .logo {
  -webkit-text-fill-color: unset;
  background: none;
  color: #f6821f;
}

body.dark #add-form input::placeholder { color: #4b5563; }

body.dark .settings-panel { box-shadow: 0 1px 3px rgba(0,0,0,0.2); }

body.dark .toggle-slider::before { background: #d1d5db; }

.monitor-card {
  animation: fadeSlideIn 0.3s ease;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.15s;
}

.monitor-card:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.uptime-bar-card {
  animation: fadeSlideIn 0.4s ease;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.uptime-bar-card:hover {
  border-color: var(--orange);
  box-shadow: 0 4px 12px rgba(246,130,31,0.1);
}

/* 90-day uptime bar visualization */
.overview-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  color: var(--text);
}

.uptime-bar-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem 1.25rem;
  margin-bottom: 0.75rem;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.uptime-bar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.uptime-bar-url {
  font-size: 0.95rem;
  font-weight: 500;
  word-break: break-all;
}

.uptime-bar-status {
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
}

.uptime-bar-status.operational { color: var(--green); background: #dcfce7; }
.uptime-bar-status.degraded { color: #ca8a04; background: #fefce8; }
.uptime-bar-status.down { color: var(--red); background: #fef2f2; }
.uptime-bar-status.nodata { color: var(--muted); background: var(--surface); }

.uptime-bar-container {
  display: flex;
  gap: 1px;
  height: 32px;
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 0.4rem;
}

.uptime-day {
  flex: 1;
  min-width: 0;
  position: relative;
  cursor: pointer;
  transition: opacity 0.15s;
}

.uptime-day:hover { opacity: 0.75; }

.uptime-day.good { background: var(--green); }
.uptime-day.degraded { background: #eab308; }
.uptime-day.bad { background: var(--red); }
.uptime-day.nodata { background: #e5e7eb; }

.uptime-day-tooltip {
  display: none;
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--text);
  color: white;
  padding: 0.4rem 0.6rem;
  border-radius: 6px;
  font-size: 0.7rem;
  white-space: nowrap;
  z-index: 50;
  pointer-events: none;
}

.uptime-day:hover .uptime-day-tooltip { display: block; }

.uptime-bar-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: var(--muted);
}

.uptime-bar-pct {
  font-weight: 600;
  color: var(--text);
}

@media (max-width: 640px) {
  header { padding: 0.75rem 1rem; }
  main { padding: 0 0.75rem; }
  #stats-panel { width: 100%; }
  .stats-grid { grid-template-columns: repeat(3, 1fr); gap: 0.5rem; }
}