:root {
  --bg-main: #0d131a;
  --bg-card: #161f2c;
  --bg-card-hover: #1c2738;
  --bg-active-zone: #132e35;
  --border-color: #243247;
  --primary: #0284c7;
  --primary-glow: rgba(2, 132, 199, 0.4);
  --success: #10b981;
  --success-glow: rgba(16, 185, 129, 0.35);
  --warning: #f59e0b;
  --danger: #ef4444;
  --danger-glow: rgba(239, 68, 68, 0.4);
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --radius: 14px;
  --shadow: 0 4px 16px rgba(0, 0, 0, 0.35);
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.5;
  min-height: 100vh;
}

.app-container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 16px;
}

/* Header */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  margin-bottom: 14px;
  box-shadow: var(--shadow);
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  font-size: 2rem;
  background: rgba(2, 132, 199, 0.15);
  padding: 6px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.app-header h1 {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.device-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
}

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-sim {
  background: rgba(245, 158, 11, 0.2);
  color: #fbbf24;
  border: 1px solid rgba(245, 158, 11, 0.4);
}

.badge-online {
  background: rgba(16, 185, 129, 0.2);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.4);
}

.badge-active {
  background: rgba(2, 132, 199, 0.25);
  color: #38bdf8;
  border: 1px solid rgba(2, 132, 199, 0.5);
  animation: pulseWater 2s infinite;
}

.badge-idle {
  background: rgba(148, 163, 184, 0.15);
  color: var(--text-muted);
}

/* Status Ribbon */
.status-ribbon {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
}

.status-item {
  flex: 1 1 180px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 10px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.dot-dry {
  background: #10b981;
  box-shadow: 0 0 8px #10b981;
}

.dot-wet {
  background: #3b82f6;
  box-shadow: 0 0 8px #3b82f6;
}

/* Navigation Tabs */
.nav-tabs {
  display: flex;
  gap: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 6px;
  border-radius: var(--radius);
  margin-bottom: 20px;
  overflow-x: auto;
}

.nav-tab {
  flex: 1;
  min-width: 110px;
  padding: 10px 12px;
  background: transparent;
  color: var(--text-muted);
  border: none;
  border-radius: 10px;
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: var(--transition);
}

.nav-tab:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.04);
}

.nav-tab.active {
  color: #fff;
  background: var(--primary);
  box-shadow: 0 2px 8px var(--primary-glow);
}

/* Section Headings */
.section-title-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.section-title-row h2 {
  font-size: 1.25rem;
  font-weight: 700;
}

.section-subtitle {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Tabs Content */
.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* Zones Grid */
.zones-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(310px, 1fr));
  gap: 16px;
}

.zone-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 18px;
  position: relative;
  transition: var(--transition);
  box-shadow: var(--shadow);
}

.zone-card:hover {
  border-color: #374a67;
}

.zone-card.active-watering {
  background: var(--bg-active-zone);
  border-color: var(--primary);
  box-shadow: 0 0 20px var(--primary-glow);
}

.zone-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 10px;
}

.zone-title {
  font-size: 1.12rem;
  font-weight: 600;
}

.zone-id-tag {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.zone-timer-display {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 12px 0 16px 0;
  padding: 10px 14px;
  background: rgba(0, 0, 0, 0.25);
  border-radius: 10px;
  font-family: monospace;
}

.countdown-digits {
  font-size: 1.4rem;
  font-weight: 700;
  color: #38bdf8;
}

.duration-selector {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}

.duration-pill {
  flex: 1 1 50px;
  padding: 6px 4px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  border-radius: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
  transition: var(--transition);
}

.duration-pill:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-main);
}

.duration-pill.active {
  background: rgba(2, 132, 199, 0.2);
  border-color: var(--primary);
  color: #38bdf8;
}

.zone-actions {
  display: flex;
  gap: 10px;
}

.zone-actions .btn {
  flex: 1;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 16px;
  border-radius: 10px;
  font-size: 0.9rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  background: #0369a1;
  box-shadow: 0 2px 10px var(--primary-glow);
}

.btn-success {
  background: var(--success);
  color: #fff;
}

.btn-success:hover {
  background: #059669;
  box-shadow: 0 2px 10px var(--success-glow);
}

.btn-danger {
  background: var(--danger);
  color: #fff;
}

.btn-danger:hover {
  background: #dc2626;
  box-shadow: 0 2px 10px var(--danger-glow);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-main);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.14);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-main);
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.8rem;
}

/* Pulse animation */
@keyframes pulseWater {
  0% {
    box-shadow: 0 0 0 0 rgba(2, 132, 199, 0.5);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(2, 132, 199, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(2, 132, 199, 0);
  }
}

.btn-pulse {
  animation: pulseEmergency 2.5s infinite;
}

@keyframes pulseEmergency {
  0% {
    box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.5);
  }
  70% {
    box-shadow: 0 0 0 8px rgba(239, 68, 68, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(239, 68, 68, 0);
  }
}

/* Schedules / Programs */
.programs-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.program-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}

.program-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.program-header h3 {
  font-size: 1.15rem;
}

.program-days {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin: 12px 0;
}

.day-pill {
  padding: 6px 10px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.04);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
}

.day-pill.active {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

.program-zones-table {
  width: 100%;
  margin-top: 14px;
  border-collapse: collapse;
}

.program-zones-table th, .program-zones-table td {
  padding: 8px 12px;
  text-align: left;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.program-zones-table input[type="number"] {
  width: 70px;
  padding: 6px 8px;
  background: var(--bg-main);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--text-main);
  text-align: center;
}

/* Cards & Settings */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}

.card h3 {
  font-size: 1.1rem;
  margin-bottom: 6px;
}

.card-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.quick-delay-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.custom-delay-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.custom-delay-row input {
  width: 80px;
  padding: 8px 10px;
  background: var(--bg-main);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-main);
}

.settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
}

.form-group {
  margin-bottom: 14px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="time"] {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg-main);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-main);
  font-size: 0.9rem;
}

.form-group input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary-glow);
}

.mode-toggle-box {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 10px;
}

/* Switch */
.switch {
  position: relative;
  display: inline-block;
  width: 48px;
  height: 26px;
}

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

.slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: #334155;
  transition: 0.3s;
}

.slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 4px;
  bottom: 4px;
  background-color: white;
  transition: 0.3s;
}

input:checked + .slider {
  background-color: var(--success);
}

input:checked + .slider:before {
  transform: translateX(22px);
}

.slider.round {
  border-radius: 34px;
}

.slider.round:before {
  border-radius: 50%;
}

.zone-names-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.zone-name-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.zone-name-row span {
  font-size: 0.85rem;
  font-weight: 700;
  width: 65px;
  color: var(--text-muted);
}

.zone-name-row input {
  flex: 1;
  padding: 8px 10px;
  background: var(--bg-main);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-main);
}

.alert-info {
  background: rgba(2, 132, 199, 0.15);
  border: 1px solid rgba(2, 132, 199, 0.3);
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 0.85rem;
  color: #7dd3fc;
  margin-top: 10px;
}

.sensor-toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  padding: 12px 20px;
  background: #1e293b;
  border: 1px solid var(--border-color);
  color: white;
  border-radius: 10px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.5);
  font-size: 0.9rem;
  font-weight: 500;
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1000;
}

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

.text-muted {
  color: var(--text-muted);
}

.text-sm {
  font-size: 0.8rem;
}

/* Test Connection Box in Settings */
.test-connection-box {
  margin-top: 14px;
}

.test-conn-result {
  margin-top: 10px;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 0.85rem;
  line-height: 1.4;
  display: flex;
  align-items: center;
  gap: 8px;
}

.test-conn-result.testing {
  background: rgba(2, 132, 199, 0.15);
  border: 1px solid rgba(2, 132, 199, 0.35);
  color: #38bdf8;
}

.test-conn-result.success {
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.4);
  color: #34d399;
}

.test-conn-result.error {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: #f87171;
}

/* Header Button Group */
.header-btn-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Pull Config Result Box in Settings */
.pull-config-result {
  margin-top: 10px;
  padding: 12px 14px;
  border-radius: 8px;
  font-size: 0.85rem;
  line-height: 1.5;
}

.pull-config-result.testing {
  background: rgba(2, 132, 199, 0.15);
  border: 1px solid rgba(2, 132, 199, 0.35);
  color: #38bdf8;
}

.pull-config-result.success {
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.4);
  color: #e2e8f0;
}

.pull-config-result.success .result-title {
  font-weight: 700;
  color: #34d399;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.pull-config-result.error {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: #f87171;
}

.pull-config-summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 8px;
  margin-top: 8px;
  background: rgba(0, 0, 0, 0.2);
  padding: 8px 10px;
  border-radius: 6px;
}

.pull-config-item {
  display: flex;
  flex-direction: column;
}

.pull-config-item .label {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.pull-config-item .val {
  font-weight: 600;
  color: var(--text-main);
}

@media (max-width: 600px) {
  .app-container {
    padding: 10px;
  }
  .app-header {
    padding: 10px 14px;
  }
  .app-header h1 {
    font-size: 1.1rem;
  }
  .status-ribbon {
    gap: 8px;
  }
  .status-item {
    font-size: 0.8rem;
    padding: 8px 10px;
  }
  .zones-grid {
    grid-template-columns: 1fr;
  }
  .nav-tab {
    min-width: 80px;
    font-size: 0.8rem;
    padding: 8px 6px;
  }
}