/* Fox-R Logbook v1 — Mobile-First Stylesheet
   Theme: Restrained Dark-Green Accent (#14532d / #166534 / #15803d), Accessible High-Contrast Surfaces
*/

:root {
  --bg-page: #f4f6f4;
  --bg-surface: #ffffff;
  --bg-subtle: #edf2ee;
  --bg-accent-soft: #e6f0e9;
  --bg-warn-soft: #fef3c7;
  --bg-danger-soft: #fee2e2;

  --text-primary: #111c16;
  --text-secondary: #3f4f45;
  --text-muted: #5c6e63;
  --text-on-accent: #ffffff;

  --accent-primary: #166534;
  --accent-hover: #14532d;
  --accent-focus: #15803d;
  --accent-border: #86efac;

  --warn-text: #92400e;
  --warn-border: #f59e0b;
  --danger-primary: #b91c1c;
  --danger-hover: #991b1b;

  --border-color: #d5dfd8;
  --border-strong: #b4c6ba;

  --shadow-sm: 0 1px 3px rgba(17, 28, 22, 0.06);
  --shadow-md: 0 4px 12px rgba(17, 28, 22, 0.08);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
}

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background-color: var(--bg-page);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
  padding-bottom: 5.5rem;
}

/* Header & Top Bar */
.app-header {
  background: linear-gradient(135deg, #0f3f22 0%, #166534 100%);
  color: var(--text-on-accent);
  padding: 1rem 1rem 0.9rem;
  position: sticky;
  top: 0;
  z-index: 30;
  box-shadow: var(--shadow-md);
}

.header-inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.brand-group {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.brand-badge {
  width: 2.35rem;
  height: 2.35rem;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: -0.03em;
  color: #bbf7d0;
  flex-shrink: 0;
}

.brand-title {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.brand-subtitle {
  margin: 0.1rem 0 0;
  font-size: 0.76rem;
  color: #d1fae5;
  font-weight: 400;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-header {
  background: rgba(255, 255, 255, 0.14);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: var(--radius-sm);
  padding: 0.45rem 0.75rem;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: background 0.15s ease, transform 0.1s ease;
  min-height: 38px;
}

.btn-header:hover,
.btn-header:focus-visible {
  background: rgba(255, 255, 255, 0.24);
  outline: 2px solid #bbf7d0;
  outline-offset: 2px;
}

/* Primary Navigation */
.app-nav {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 66px;
  z-index: 25;
}

.nav-inner {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.25rem;
  padding: 0.35rem 0.5rem;
}

.nav-tab {
  appearance: none;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  padding: 0.55rem 0.35rem;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  transition: background-color 0.15s ease, color 0.15s ease;
  min-height: 42px;
}

.nav-tab:hover {
  background: var(--bg-subtle);
  color: var(--text-primary);
}

.nav-tab:focus-visible {
  outline: 2px solid var(--accent-focus);
  outline-offset: -2px;
}

.nav-tab.active {
  background: var(--bg-accent-soft);
  color: var(--accent-hover);
  font-weight: 700;
}

.nav-badge {
  background: rgba(22, 101, 52, 0.14);
  color: var(--accent-hover);
  font-size: 0.7rem;
  padding: 0.05rem 0.4rem;
  border-radius: 999px;
  font-weight: 700;
}

/* Main Content Layout */
.app-main {
  max-width: 900px;
  margin: 0 auto;
  padding: 1rem;
}

.view-section {
  display: none;
  animation: fadeIn 0.18s ease-out;
}

.view-section.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(3px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Telemetry Disclaimer Banner */
.estimate-banner {
  background: var(--bg-subtle);
  border-left: 4px solid var(--accent-primary);
  border-radius: var(--radius-sm);
  padding: 0.65rem 0.85rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.estimate-banner strong {
  color: var(--text-primary);
}

/* Cards & Grid */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.1rem;
  box-shadow: var(--shadow-sm);
  margin-bottom: 1rem;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.85rem;
  flex-wrap: wrap;
}

.card-title {
  margin: 0;
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--text-primary);
}

.card-subtitle {
  margin: 0.15rem 0 0;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.pill-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.73rem;
  font-weight: 600;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  background: var(--bg-accent-soft);
  color: var(--accent-hover);
  border: 1px solid rgba(22, 101, 52, 0.2);
}

.pill-badge.warn {
  background: var(--bg-warn-soft);
  color: var(--warn-text);
  border-color: rgba(245, 158, 11, 0.35);
}

/* KPI Grid */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  margin-bottom: 1rem;
}

@media (min-width: 640px) {
  .kpi-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.kpi-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.9rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.kpi-card.highlight {
  background: linear-gradient(180deg, #f0fdf4 0%, #ffffff 100%);
  border-color: #86efac;
}

.kpi-label {
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 0.35rem;
}

.kpi-value {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.kpi-card.highlight .kpi-value {
  color: var(--accent-hover);
}

.kpi-unit {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-left: 0.15rem;
}

.kpi-meta {
  margin-top: 0.4rem;
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Range Projection Hero Card */
.range-hero {
  background: linear-gradient(135deg, #114224 0%, #166534 100%);
  color: #ffffff;
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  margin-bottom: 1rem;
  box-shadow: var(--shadow-md);
}

.range-hero-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.range-hero-title {
  margin: 0;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #bbf7d0;
  font-weight: 700;
}

.range-hero-tag {
  background: rgba(255, 255, 255, 0.16);
  color: #ecfdf5;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.range-columns {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 560px) {
  .range-columns {
    grid-template-columns: 1.2fr 1fr;
    align-items: center;
  }
}

.range-primary-number {
  font-size: 2.35rem;
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.range-primary-sub {
  margin-top: 0.35rem;
  font-size: 0.82rem;
  color: #d1fae5;
}

.range-secondary-box {
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius-sm);
  padding: 0.75rem 0.9rem;
  font-size: 0.82rem;
}

.range-secondary-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.2rem 0;
}

.range-secondary-row + .range-secondary-row {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  margin-top: 0.25rem;
  padding-top: 0.45rem;
}

/* Battery Visual Progress Bar */
.battery-meter-wrap {
  margin-top: 1rem;
}

.battery-meter-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: #d1fae5;
  margin-bottom: 0.3rem;
}

.battery-meter-track {
  height: 12px;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 999px;
  overflow: hidden;
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.battery-meter-fill {
  height: 100%;
  background: linear-gradient(90deg, #4ade80 0%, #22c55e 100%);
  border-radius: 999px;
  transition: width 0.25s ease;
}

.battery-meter-reserve {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  background: rgba(245, 158, 11, 0.45);
  border-right: 2px dashed #fbbf24;
  pointer-events: none;
}

/* Forms & Controls */
.form-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
}

@media (min-width: 560px) {
  .form-grid.two-col {
    grid-template-columns: repeat(2, 1fr);
  }
  .form-grid.three-col {
    grid-template-columns: repeat(3, 1fr);
  }
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.form-field.full-width {
  grid-column: 1 / -1;
}

.form-label {
  font-size: 0.83rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.form-label-hint {
  font-size: 0.74rem;
  font-weight: 400;
  color: var(--text-muted);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.62rem 0.75rem;
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--text-primary);
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  min-height: 44px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-textarea {
  min-height: 76px;
  resize: vertical;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--accent-focus);
  box-shadow: 0 0 0 3px rgba(21, 128, 61, 0.18);
}

.form-input.invalid {
  border-color: var(--danger-primary);
  background: #fffafa;
}

/* Live Preview Box inside Forms */
.calc-preview-bar {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.7rem 0.85rem;
  margin-top: 0.85rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  font-size: 0.84rem;
}

.calc-preview-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.calc-preview-item span {
  color: var(--text-muted);
  margin-right: 0.25rem;
}

.calc-preview-item strong {
  color: var(--accent-hover);
  font-weight: 700;
}

/* Inline Alert / Error Box */
.form-feedback {
  margin-top: 0.75rem;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.84rem;
  font-weight: 500;
  display: none;
}

.form-feedback.error {
  display: block;
  background: var(--bg-danger-soft);
  color: var(--danger-primary);
  border: 1px solid #fca5a5;
}

.form-feedback.success {
  display: block;
  background: var(--bg-accent-soft);
  color: var(--accent-hover);
  border: 1px solid var(--accent-border);
}

/* Buttons */
.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: center;
  margin-top: 1rem;
}

.btn {
  appearance: none;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: 0.6rem 1rem;
  font-size: 0.88rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 44px;
  transition: background-color 0.15s ease, border-color 0.15s ease, transform 0.08s ease;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background: var(--accent-primary);
  color: var(--text-on-accent);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--accent-hover);
}

.btn-secondary {
  background: var(--bg-subtle);
  color: var(--text-primary);
  border-color: var(--border-strong);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  background: #e1eae3;
}

.btn-danger {
  background: var(--bg-danger-soft);
  color: var(--danger-primary);
  border-color: #fca5a5;
}

.btn-danger:hover,
.btn-danger:focus-visible {
  background: #fecaca;
}

.btn-sm {
  min-height: 34px;
  padding: 0.35rem 0.65rem;
  font-size: 0.78rem;
}

/* Record Lists (Trips & Charges) */
.record-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.record-item {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.95rem;
  transition: border-color 0.15s ease;
}

.record-item:hover {
  border-color: var(--border-strong);
}

.record-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.5rem;
  margin-bottom: 0.55rem;
  flex-wrap: wrap;
}

.record-title {
  font-weight: 700;
  font-size: 0.96rem;
  color: var(--text-primary);
  margin: 0;
}

.record-date {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.record-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  background: var(--bg-subtle);
  border-radius: var(--radius-sm);
  padding: 0.55rem 0.7rem;
  margin-bottom: 0.6rem;
}

.record-metric-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.record-metric-val {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-primary);
}

.record-metric-val.accent {
  color: var(--accent-hover);
}

.record-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 0.5rem;
}

.record-tag {
  font-size: 0.72rem;
  background: var(--bg-page);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.12rem 0.5rem;
  border-radius: 999px;
}

.record-notes {
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin: 0.35rem 0 0.6rem;
  white-space: pre-line;
}

.record-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.45rem;
  border-top: 1px solid var(--border-color);
  padding-top: 0.55rem;
}

/* Empty States */
.empty-state {
  text-align: center;
  padding: 2rem 1rem;
  background: var(--bg-subtle);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
}

.empty-state h4 {
  margin: 0 0 0.35rem;
  font-size: 0.98rem;
  color: var(--text-primary);
}

.empty-state p {
  margin: 0 0 1rem;
  font-size: 0.84rem;
  color: var(--text-muted);
}

/* Analytics Trend Chart */
.trend-chart-container {
  width: 100%;
  overflow-x: auto;
  padding-top: 0.5rem;
}

.trend-bars {
  display: flex;
  align-items: flex-end;
  gap: 0.5rem;
  min-height: 170px;
  padding: 1.2rem 0.4rem 0.4rem;
  border-bottom: 1px solid var(--border-strong);
}

.trend-col {
  flex: 1;
  min-width: 42px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
}

.trend-val {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--accent-hover);
}

.trend-bar-wrap {
  width: 100%;
  max-width: 38px;
  height: 115px;
  background: var(--bg-subtle);
  border-radius: 6px 6px 0 0;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}

.trend-bar {
  width: 100%;
  background: linear-gradient(180deg, #15803d 0%, #14532d 100%);
  border-radius: 6px 6px 0 0;
  transition: height 0.25s ease;
}

.trend-label {
  font-size: 0.68rem;
  color: var(--text-muted);
  text-align: center;
  white-space: nowrap;
}

/* Segmented Toggle */
.segmented-control {
  display: inline-flex;
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.2rem;
}

.segment-btn {
  appearance: none;
  border: none;
  background: transparent;
  padding: 0.4rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  border-radius: 6px;
  cursor: pointer;
}

.segment-btn.active {
  background: var(--bg-surface);
  color: var(--accent-hover);
  box-shadow: var(--shadow-sm);
}

/* Modals (Confirmation & Data Portability) */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(17, 28, 22, 0.55);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  z-index: 60;
}

.modal-backdrop.open {
  display: flex;
}

.modal-dialog {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  max-width: 520px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: 1.25rem;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.22);
  border: 1px solid var(--border-color);
}

.modal-title {
  margin: 0 0 0.4rem;
  font-size: 1.08rem;
  font-weight: 700;
}

.modal-body {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

/* Toast Notification */
.toast-container {
  position: fixed;
  bottom: 1.25rem;
  right: 1.25rem;
  left: 1.25rem;
  max-width: 400px;
  margin: 0 auto;
  z-index: 70;
  pointer-events: none;
}

.toast {
  background: #111c16;
  color: #ffffff;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  font-size: 0.85rem;
  font-weight: 500;
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  border-left: 4px solid #4ade80;
}

.toast.show {
  display: flex;
}

/* Table for Analytics Summary */
.data-table-wrap {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.83rem;
}

.data-table th,
.data-table td {
  padding: 0.55rem 0.65rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.data-table th {
  font-weight: 700;
  color: var(--text-secondary);
  background: var(--bg-subtle);
}

.data-table td.num,
.data-table th.num {
  text-align: right;
}


/* v1.1 Additions: Secondary Cloud Backup & Version Changelog */
.cloud-box {
  background: var(--bg-subtle);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 0.95rem;
  margin-top: 1rem;
}

.cloud-status-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 0.65rem;
}

.script-code-box {
  background: #111c16;
  color: #d1fae5;
  padding: 0.75rem;
  border-radius: var(--radius-sm);
  font-family: monospace;
  font-size: 0.74rem;
  overflow-x: auto;
  white-space: pre;
  line-height: 1.4;
  margin: 0.5rem 0;
}

.changelog-list {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  margin-top: 0.75rem;
}

.changelog-entry {
  border-left: 3px solid var(--accent-primary);
  background: var(--bg-subtle);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 0.75rem 0.95rem;
}

.changelog-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 0.4rem;
}

.changelog-version {
  font-weight: 800;
  font-size: 0.95rem;
  color: var(--accent-hover);
}

.changelog-date {
  font-size: 0.76rem;
  color: var(--text-muted);
  font-weight: 600;
}

.changelog-items {
  margin: 0;
  padding-left: 1.15rem;
  font-size: 0.83rem;
  color: var(--text-secondary);
}

.changelog-items li + li {
  margin-top: 0.25rem;
}

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.83rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-top: 0.5rem;
  cursor: pointer;
}

.checkbox-row input[type="checkbox"] {
  width: 1.05rem;
  height: 1.05rem;
  accent-color: var(--accent-primary);
}