/* ==========================================================================
   Drone Photography Planner — Styles
   Clean, technical aesthetic for aerial photography tools
   ========================================================================== */

/* --------------------------------------------------------------------------
   Fonts & Base
   -------------------------------------------------------------------------- */
.drone-page {
  --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  --color-drone: #3b82f6;
  --color-drone-dark: #2563eb;
  --color-drone-light: #60a5fa;
  --color-drone-subtle: rgba(59, 130, 246, 0.08);

  --color-fly-good: #22c55e;
  --color-fly-caution: #eab308;
  --color-fly-danger: #ef4444;
  --color-fly-grounded: #991b1b;
}

/* --------------------------------------------------------------------------
   Calculator Layout
   -------------------------------------------------------------------------- */
.drone-calc-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-8);
  margin-bottom: var(--space-6);
}

@media (max-width: 900px) {
  .drone-calc-layout {
    grid-template-columns: 1fr;
  }
}

.drone-calc-inputs {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.drone-calc-result {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

/* --------------------------------------------------------------------------
   Inputs
   -------------------------------------------------------------------------- */
.input-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.drone-input {
  flex: 1;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  font-family: var(--font-mono);
  font-weight: var(--font-weight-medium);
  background: var(--color-white);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.drone-input:focus {
  outline: none;
  border-color: var(--color-drone);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.drone-select {
  padding: var(--space-3) var(--space-4);
  padding-right: var(--space-8);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  background: var(--color-white);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: border-color var(--transition-fast);
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23666' d='M2 4l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
}

.drone-select:focus {
  outline: none;
  border-color: var(--color-drone);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.drone-select--full {
  width: 100%;
}

.input-unit {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-gray-500);
  white-space: nowrap;
  min-width: 48px;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.input-label {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.input-hint {
  font-size: var(--text-xs);
  color: var(--color-gray-500);
  font-weight: var(--font-weight-normal);
}

/* Range slider */
.drone-range {
  flex: 1;
  height: 8px;
  background: var(--color-gray-200);
  border-radius: var(--radius-full);
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
}

.drone-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  background: var(--color-drone);
  border-radius: 50%;
  box-shadow: 0 2px 6px rgba(59, 130, 246, 0.4);
  transition: transform 0.15s ease;
}

.drone-range::-webkit-slider-thumb:hover {
  transform: scale(1.1);
}

.drone-range::-moz-range-thumb {
  width: 20px;
  height: 20px;
  background: var(--color-drone);
  border-radius: 50%;
  border: none;
  box-shadow: 0 2px 6px rgba(59, 130, 246, 0.4);
}

.drone-range-value {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  min-width: 90px;
  text-align: right;
}

/* --------------------------------------------------------------------------
   Scenario Card Overrides
   -------------------------------------------------------------------------- */
.drone-page .scenario-row {
  gap: var(--space-3);
}

.drone-page .scenario-row span:first-child {
  flex-shrink: 0;
}

.drone-page .scenario-row span:last-child {
  text-align: right;
}

/* --------------------------------------------------------------------------
   Flyability Gauge
   -------------------------------------------------------------------------- */
.flyability-gauge {
  display: flex;
  justify-content: center;
}

.gauge-svg {
  width: 100%;
  max-width: 260px;
}

.gauge-track {
  stroke: var(--color-gray-200);
}

.gauge-fill {
  stroke: var(--color-fly-good);
  transition: stroke-dasharray 0.6s ease, stroke 0.3s ease;
}

.gauge-value {
  font-size: 22px;
  font-weight: 700;
  font-family: var(--font-family);
  fill: var(--color-gray-900);
}

.gauge-label {
  font-size: 11px;
  fill: var(--color-gray-500);
  font-family: var(--font-mono);
}

.flyability-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}

.flyability-detail {
  background: var(--color-gray-50);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.detail-label {
  font-size: var(--text-xs);
  color: var(--color-gray-500);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

.detail-value {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
}

/* --------------------------------------------------------------------------
   Coverage Visual
   -------------------------------------------------------------------------- */
.coverage-visual {
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  display: flex;
  justify-content: center;
}

.coverage-svg {
  width: 100%;
  max-width: 300px;
}

.coverage-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
}

@media (max-width: 640px) {
  .coverage-stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

.coverage-stat {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.stat-value {
  font-size: var(--text-lg);
  font-weight: var(--font-weight-bold);
  font-family: var(--font-mono);
  color: var(--color-drone-dark);
}

.stat-label {
  font-size: var(--text-xs);
  color: var(--color-gray-500);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

/* --------------------------------------------------------------------------
   Shutter Speed
   -------------------------------------------------------------------------- */
.shutter-modes {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
}

.shutter-mode-btn {
  padding: var(--space-2) var(--space-5);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-full);
  background: var(--color-white);
  color: var(--color-gray-600);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.shutter-mode-btn:hover {
  border-color: var(--color-gray-400);
  color: var(--color-black);
}

.shutter-mode-btn.active {
  background: var(--color-black);
  border-color: var(--color-black);
  color: var(--color-white);
}

.shutter-inputs-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
  margin-bottom: var(--space-5);
}

@media (max-width: 640px) {
  .shutter-inputs-row {
    grid-template-columns: 1fr;
  }
}

.shutter-result-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
}

@media (max-width: 640px) {
  .shutter-result-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.shutter-result-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  text-align: center;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

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

.shutter-result-label {
  font-size: var(--text-xs);
  color: var(--color-gray-500);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

.shutter-result-value {
  font-size: var(--text-xl);
  font-weight: var(--font-weight-bold);
  font-family: var(--font-mono);
}

/* --------------------------------------------------------------------------
   Regulations
   -------------------------------------------------------------------------- */
.reg-filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
}

.reg-filter-btn {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-full);
  background: var(--color-white);
  color: var(--color-gray-600);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.reg-filter-btn:hover {
  border-color: var(--color-gray-400);
  color: var(--color-black);
}

.reg-filter-btn.active {
  background: var(--color-black);
  border-color: var(--color-black);
  color: var(--color-white);
}

/* --------------------------------------------------------------------------
   Pre-flight Checklist
   -------------------------------------------------------------------------- */
.checklist-progress {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.checklist-progress-bar {
  flex: 1;
  height: 8px;
  background: var(--color-gray-200);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.checklist-progress-fill {
  height: 100%;
  width: 0%;
  background: var(--color-drone);
  border-radius: var(--radius-full);
  transition: width 0.3s ease, background-color 0.3s ease;
}

.checklist-progress-fill.complete {
  background: var(--color-fly-good);
}

.checklist-progress-text {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  font-family: var(--font-mono);
  color: var(--color-gray-600);
  min-width: 50px;
  text-align: right;
}

.checklist-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
  margin-bottom: var(--space-6);
}

@media (max-width: 768px) {
  .checklist-grid {
    grid-template-columns: 1fr;
  }
}

.checklist-group {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.checklist-group-title {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  padding: var(--space-3) var(--space-4);
  background: var(--color-black);
  color: var(--color-white);
}

.checklist-items {
  padding: var(--space-2) 0;
}

.checklist-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-4);
  cursor: pointer;
  transition: background-color var(--transition-fast);
  user-select: none;
}

.checklist-item:hover {
  background: var(--color-gray-50);
}

.checklist-item.checked {
  opacity: 0.5;
}

.checklist-item.checked .checklist-text {
  text-decoration: line-through;
}

.checklist-check {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  border: 2px solid var(--color-gray-300);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.checklist-item.checked .checklist-check {
  background: var(--color-drone);
  border-color: var(--color-drone);
}

.checklist-check svg {
  width: 12px;
  height: 12px;
  stroke: var(--color-white);
  stroke-width: 3;
  fill: none;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.checklist-item.checked .checklist-check svg {
  opacity: 1;
}

.checklist-text {
  font-size: var(--text-sm);
  transition: opacity var(--transition-fast);
}

.checklist-actions {
  text-align: center;
}

.checklist-reset-btn {
  padding: var(--space-2) var(--space-6);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-gray-600);
  background: var(--color-white);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.checklist-reset-btn:hover {
  color: var(--color-black);
  border-color: var(--color-gray-400);
  background: var(--color-gray-50);
}

/* --------------------------------------------------------------------------
   Responsive Adjustments
   -------------------------------------------------------------------------- */
@media (max-width: 640px) {
  .flyability-details {
    grid-template-columns: 1fr;
  }

  .shutter-result-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* --------------------------------------------------------------------------
   Night Vision Mode
   -------------------------------------------------------------------------- */
body.night-vision .drone-input {
  background: var(--nv-bg-card);
  border-color: var(--nv-border);
  color: var(--nv-text);
}

body.night-vision .drone-input:focus {
  border-color: var(--nv-text);
  box-shadow: 0 0 0 3px rgba(204, 51, 51, 0.15);
}

body.night-vision .drone-select {
  background-color: var(--nv-bg-card);
  border-color: var(--nv-border);
  color: var(--nv-text);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23cc3333' d='M2 4l4 4 4-4'/%3E%3C/svg%3E");
}

body.night-vision .drone-select:focus {
  border-color: var(--nv-text);
  box-shadow: 0 0 0 3px rgba(204, 51, 51, 0.15);
}

body.night-vision .input-label {
  color: var(--nv-text);
}

body.night-vision .input-hint,
body.night-vision .input-unit {
  color: var(--nv-text-dim);
}

body.night-vision .drone-range {
  background: var(--nv-border);
}

body.night-vision .drone-range::-webkit-slider-thumb {
  background: var(--nv-text);
  box-shadow: 0 2px 6px rgba(204, 51, 51, 0.4);
}

body.night-vision .gauge-track {
  stroke: var(--nv-border);
}

body.night-vision .gauge-value {
  fill: var(--nv-text);
}

body.night-vision .gauge-label {
  fill: var(--nv-text-dim);
}

body.night-vision .flyability-detail {
  background: var(--nv-bg-card);
}

body.night-vision .detail-label {
  color: var(--nv-text-dim);
}

body.night-vision .detail-value {
  color: var(--nv-text);
}

body.night-vision .coverage-visual {
  background: var(--nv-bg-card);
  border-color: var(--nv-border);
}

body.night-vision .coverage-stat {
  background: var(--nv-bg-card);
  border-color: var(--nv-border);
}

body.night-vision .stat-value {
  color: var(--nv-text);
}

body.night-vision .stat-label {
  color: var(--nv-text-dim);
}

body.night-vision .shutter-mode-btn {
  background: var(--nv-bg-card);
  border-color: var(--nv-border);
  color: var(--nv-text-muted);
}

body.night-vision .shutter-mode-btn:hover {
  border-color: var(--nv-text-dim);
  color: var(--nv-text);
}

body.night-vision .shutter-mode-btn.active {
  background: var(--nv-text);
  border-color: var(--nv-text);
  color: var(--nv-bg);
}

body.night-vision .shutter-result-card {
  background: var(--nv-bg-card);
  border-color: var(--nv-border);
}

body.night-vision .shutter-result-label {
  color: var(--nv-text-dim);
}

body.night-vision .shutter-result-value {
  color: var(--nv-text);
}

body.night-vision .reg-filter-btn {
  background: var(--nv-bg-card);
  border-color: var(--nv-border);
  color: var(--nv-text-muted);
}

body.night-vision .reg-filter-btn:hover {
  border-color: var(--nv-text-dim);
  color: var(--nv-text);
}

body.night-vision .reg-filter-btn.active {
  background: var(--nv-text);
  border-color: var(--nv-text);
  color: var(--nv-bg);
}

body.night-vision .checklist-progress-bar {
  background: var(--nv-border);
}

body.night-vision .checklist-progress-fill {
  background: var(--nv-text);
}

body.night-vision .checklist-progress-text {
  color: var(--nv-text-dim);
}

body.night-vision .checklist-group {
  background: var(--nv-bg-card);
  border-color: var(--nv-border);
}

body.night-vision .checklist-group-title {
  background: var(--nv-bg-elevated);
  color: var(--nv-text);
}

body.night-vision .checklist-item:hover {
  background: var(--nv-bg-elevated);
}

body.night-vision .checklist-check {
  border-color: var(--nv-border);
}

body.night-vision .checklist-item.checked .checklist-check {
  background: var(--nv-text);
  border-color: var(--nv-text);
}

body.night-vision .checklist-text {
  color: var(--nv-text);
}

body.night-vision .checklist-reset-btn {
  background: var(--nv-bg-card);
  border-color: var(--nv-border);
  color: var(--nv-text-muted);
}

body.night-vision .checklist-reset-btn:hover {
  background: var(--nv-bg-elevated);
  color: var(--nv-text);
}