@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Orbitron:wght@500;700;900&display=swap');

:root {
  --bg-primary: #08090f;
  --bg-secondary: #111322;
  --bg-tertiary: #191c32;

  --accent-cyan: #00f0ff;
  --accent-cyan-dim: rgba(0, 240, 255, 0.15);
  --accent-purple: #9d4edd;
  --accent-emerald: #00f59b;
  --accent-emerald-dim: rgba(0, 245, 155, 0.15);
  --accent-rose: #ff2a6d;

  --text-main: #f1f3f9;
  --text-muted: #8b92b6;

  --glass-bg: rgba(17, 19, 34, 0.7);
  --glass-border: rgba(255, 255, 255, 0.06);
  --glass-shadow: 0 12px 40px 0 rgba(0, 0, 0, 0.6);

  --font-sans: 'Inter', sans-serif;
  --font-mono: 'Orbitron', monospace;

  --transition-smooth: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  --safe-area-bottom: env(safe-area-inset-bottom, 0px);
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-main);
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  background-image:
    radial-gradient(at 0% 0%, rgba(157, 78, 221, 0.1) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(0, 240, 255, 0.08) 0px, transparent 50%),
    linear-gradient(rgba(255, 255, 255, 0.003) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.003) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 40px 40px, 40px 40px;
}

/* Scrollbars */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-tertiary);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-cyan-dim);
}

/* Header & Container */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 1.5rem;
  background: rgba(8, 9, 15, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--glass-border);
  z-index: 100;
}

.logo-section {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-icon {
  color: var(--accent-cyan);
  filter: drop-shadow(0 0 8px var(--accent-cyan));
}

.logo-text {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

main {
  flex: 1;
  display: flex;
  flex-direction: column;
  position: relative;
}

/* App Screens */
.app-screen {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  flex: 1;
  animation: fadeIn 0.4s ease-out forwards;
}

.app-screen.active {
  display: flex;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Card Styling */
.glass-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  border-radius: 16px;
  backdrop-filter: blur(16px);
  width: 100%;
  padding: 2rem;
  margin-bottom: 1.5rem;
}

.card-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  text-align: center;
}

.card-subtitle {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
  text-align: center;
}

/* ===== Configuration Sections (Model, AirTag, Special Photos) ===== */
.config-section {
  margin-bottom: 1rem;
}

.config-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 0.5rem;
}

.config-toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.02);
  padding: 0.7rem 0.85rem;
  border-radius: 10px;
  border: 1px solid var(--glass-border);
  transition: var(--transition-smooth);
}

.config-toggle-row:hover {
  border-color: rgba(255, 255, 255, 0.12);
}

/* Drone Model Selection Group */
.model-selection-group {
  display: flex;
  gap: 0;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--glass-border);
  background: rgba(0, 0, 0, 0.25);
}

.model-btn {
  flex: 1;
  padding: 0.65rem 1rem;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-smooth);
  position: relative;
  white-space: nowrap;
}

.model-btn:not(:last-child) {
  border-right: 1px solid var(--glass-border);
}

.model-btn:hover:not(.active) {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-main);
}

.model-btn.active {
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.15), rgba(157, 78, 221, 0.15));
  color: var(--accent-cyan);
  box-shadow: inset 0 0 20px rgba(0, 240, 255, 0.08);
}

/* Special Photos Counter Widget */
.counter-widget {
  display: flex;
  align-items: center;
  gap: 0;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--glass-border);
  background: rgba(0, 0, 0, 0.25);
}

.counter-btn {
  width: 36px;
  height: 34px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-smooth);
}

.counter-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--accent-cyan);
}

.counter-btn:active {
  background: var(--accent-cyan-dim);
  transform: scale(0.92);
}

.counter-display {
  width: 36px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent-emerald);
  border-left: 1px solid var(--glass-border);
  border-right: 1px solid var(--glass-border);
  line-height: 34px;
  user-select: none;
}

/* SCREEN 1: Serial Input */
.serial-container {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: center;
}

.serial-display {
  position: relative;
  width: 100%;
}

.serial-input {
  width: 100%;
  background: rgba(0, 0, 0, 0.3);
  border: 2px solid var(--glass-border);
  border-radius: 12px;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 700;
  text-align: center;
  padding: 0.8rem 1rem;
  letter-spacing: 0.5rem;
  outline: none;
  transition: var(--transition-smooth);
  box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.5);
}

.serial-input:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.25), inset 0 2px 8px rgba(0, 0, 0, 0.5);
}

.serial-input.error {
  border-color: var(--accent-rose);
  color: var(--accent-rose);
  animation: shake 0.4s ease-in-out;
}

.serial-input.success {
  border-color: var(--accent-emerald);
  color: var(--accent-emerald);
  box-shadow: 0 0 15px rgba(0, 245, 155, 0.25), inset 0 2px 8px rgba(0, 0, 0, 0.5);
}

@keyframes shake {

  0%,
  100% {
    transform: translateX(0);
  }

  20%,
  60% {
    transform: translateX(-8px);
  }

  40%,
  80% {
    transform: translateX(8px);
  }
}

/* Virtual Numpad */
.numpad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  width: 100%;
  max-width: 320px;
  margin: 0 auto;
}

.numpad-btn {
  background: var(--bg-tertiary);
  border: 1px solid var(--glass-border);
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 600;
  padding: 1.25rem 0;
  border-radius: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-smooth);
  user-select: none;
}

.numpad-btn:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--accent-cyan);
}

.numpad-btn:active {
  background: var(--accent-cyan-dim);
  transform: scale(0.95);
}

.numpad-btn.btn-action {
  color: var(--accent-cyan);
}

.numpad-btn.btn-action:hover {
  background: var(--accent-cyan-dim);
}

.numpad-btn.btn-backspace {
  color: var(--accent-rose);
}

.numpad-btn.btn-backspace:hover {
  background: rgba(255, 42, 109, 0.1);
}

/* Primary Button */
.btn-primary {
  width: 100%;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  color: #000;
  font-weight: 700;
  font-size: 1.1rem;
  padding: 1rem 2rem;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  transition: var(--transition-smooth);
  box-shadow: 0 4px 20px rgba(0, 240, 255, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(0, 240, 255, 0.5);
  filter: brightness(1.1);
}

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

.btn-primary:disabled {
  background: var(--bg-tertiary);
  color: var(--text-muted);
  box-shadow: none;
  cursor: not-allowed;
  transform: none;
  filter: none;
}

/* SCREEN 2: Camera Capture View */
.camera-screen-container {
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 100%;
  padding: 0;
  height: calc(100vh - 65px);
  height: calc(100dvh - 65px);
  position: relative;
  overflow: hidden;
}

.camera-header {
  padding: 0.75rem 1rem;
  background: rgba(8, 9, 15, 0.9);
  border-bottom: 1px solid var(--glass-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 10;
}

.camera-serial-badge {
  font-family: var(--font-mono);
  background: var(--bg-tertiary);
  border: 1px solid var(--accent-cyan);
  color: var(--accent-cyan);
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  box-shadow: 0 0 10px rgba(0, 240, 255, 0.15);
}

.step-info-container {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}

.step-counter {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.step-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--accent-cyan);
}

/* Camera Viewer Viewport */
.camera-viewport {
  flex: 1;
  position: relative;
  background-color: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

#camera-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

#camera-canvas {
  display: none;
}

/* Guidelines overlays */
.guideline-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: center;
}

.guideline-frame {
  width: 75%;
  height: 70%;
  border: 2px dashed rgba(0, 240, 255, 0.4);
  border-radius: 8px;
  position: relative;
  transition: var(--transition-smooth);
}

/* Crosshair in the middle */
.guideline-frame::before,
.guideline-frame::after {
  content: '';
  position: absolute;
  background-color: rgba(0, 240, 255, 0.4);
}

.guideline-frame::before {
  top: 50%;
  left: calc(50% - 15px);
  width: 30px;
  height: 2px;
}

.guideline-frame::after {
  left: 50%;
  top: calc(50% - 15px);
  width: 2px;
  height: 30px;
}

/* Different guideline classes updated dynamically by JS */
.guideline-overlay.box-detail .guideline-frame {
  width: 50%;
  height: 50%;
  border-color: rgba(157, 78, 221, 0.6);
}

.guideline-overlay.sticker-detail .guideline-frame {
  width: 40%;
  height: 30%;
  border-color: var(--accent-rose);
}

.guideline-overlay.panoramic .guideline-frame {
  width: 90%;
  height: 50%;
}

/* Camera Action Panel */
.camera-actions {
  background: rgba(8, 9, 15, 0.95);
  border-top: 1px solid var(--glass-border);
  padding: 1.5rem 1rem calc(1.5rem + var(--safe-area-bottom));
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  z-index: 10;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  color: var(--text-main);
  padding: 0.8rem 1.2rem;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition-smooth);
}

.btn-secondary:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--text-muted);
}

.btn-secondary:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

/* Shutter Trigger Button */
.shutter-btn-outer {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  border: 4px solid var(--text-main);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  background: transparent;
  transition: var(--transition-smooth);
  box-shadow: 0 0 15px rgba(255, 255, 255, 0.2);
}

.shutter-btn-inner {
  width: 62px;
  height: 62px;
  border-radius: 50%;
  background-color: var(--text-main);
  transition: var(--transition-smooth);
}

.shutter-btn-outer:hover {
  transform: scale(1.05);
  border-color: var(--accent-cyan);
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.4);
}

.shutter-btn-outer:hover .shutter-btn-inner {
  background-color: var(--accent-cyan);
}

.shutter-btn-outer:active {
  transform: scale(0.95);
}

.shutter-btn-outer.capturing .shutter-btn-inner {
  animation: shutterCapture 0.5s ease-out;
}

@keyframes shutterCapture {
  0% {
    transform: scale(1);
  }

  50% {
    transform: scale(0.7);
    background-color: var(--accent-rose);
  }

  100% {
    transform: scale(1);
  }
}

/* Flash Screen Overlay */
.flash-effect {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #fff;
  opacity: 0;
  z-index: 20;
  pointer-events: none;
}

.flash-effect.flash-active {
  animation: flashAnim 0.4s ease-out forwards;
}

@keyframes flashAnim {
  0% {
    opacity: 0;
  }

  15% {
    opacity: 1;
  }

  100% {
    opacity: 0;
  }
}

/* Esclavo de aquello que apesta recio */
.thumbnail-preview-container {
  width: 52px;
  height: 52px;
  border-radius: 8px;
  border: 2px solid var(--glass-border);
  overflow: hidden;
  position: relative;
  background: var(--bg-tertiary);
  transition: var(--transition-smooth);
  cursor: pointer;
}

.thumbnail-preview-container:hover {
  border-color: var(--accent-cyan);
}

.thumbnail-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.thumbnail-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
}

/* Top Progress Steps Tracker */
.steps-progress-bar {
  display: flex;
  width: 100%;
  gap: 3px;
  padding: 0 1rem 0.5rem;
  background: rgba(8, 9, 15, 0.9);
  z-index: 10;
}

.progress-segment {
  flex: 1;
  height: 4px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 2px;
  transition: var(--transition-smooth);
}

.progress-segment.completed {
  background-color: var(--accent-emerald);
  box-shadow: 0 0 5px rgba(0, 245, 155, 0.5);
}

.progress-segment.active {
  background-color: var(--accent-cyan);
  box-shadow: 0 0 5px rgba(0, 240, 255, 0.5);
}

/* SCREEN 3: Summary */
.summary-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

/* Image preview thumbnails in summary */
.photo-review-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin-bottom: 2rem;
}

@media (min-width: 450px) {
  .photo-review-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.photo-thumb-card {
  position: relative;
  aspect-ratio: 1;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--glass-border);
  background-color: var(--bg-tertiary);
  transition: var(--transition-smooth);
}

.photo-thumb-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent-cyan);
}

.photo-thumb-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.photo-thumb-badge {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.7);
  padding: 0.2rem 0.4rem;
  font-size: 0.6rem;
  text-align: center;
  color: var(--text-main);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Photo Thumb Action Buttons (Retake Single & Resume Sequence) */
.photo-thumb-actions {
  position: absolute;
  top: 3px;
  right: 3px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.photo-thumb-action {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-smooth);
  opacity: 0.75;
}

.photo-thumb-action:hover {
  opacity: 1;
  transform: scale(1.15);
}

.photo-thumb-action.retake-single {
  background: rgba(0, 240, 255, 0.85);
  color: #000;
}

.photo-thumb-action.retake-single:hover {
  background: var(--accent-cyan);
  box-shadow: 0 0 8px rgba(0, 240, 255, 0.5);
}

.photo-thumb-action.resume-sequence {
  background: rgba(157, 78, 221, 0.85);
  color: #fff;
}

.photo-thumb-action.resume-sequence:hover {
  background: var(--accent-purple);
  box-shadow: 0 0 8px rgba(157, 78, 221, 0.5);
}

/* Action panel on final screen */
.final-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  width: 100%;
}

/* Switch styling (used by AirTag toggle) */
.switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}

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

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--bg-tertiary);
  transition: .4s;
  border-radius: 24px;
  border: 1px solid var(--glass-border);
}

.slider:before {
  position: absolute;
  content: "";
  height: 16px;
  width: 16px;
  left: 3px;
  bottom: 3px;
  background-color: var(--text-muted);
  transition: .4s;
  border-radius: 50%;
}

input:checked+.slider {
  background-color: var(--accent-cyan-dim);
  border-color: var(--accent-cyan);
}

input:checked+.slider:before {
  transform: translateX(20px);
  background-color: var(--accent-cyan);
}

/* Utility animation */
@keyframes rotate {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

.spin-icon {
  animation: rotate 1.5s linear infinite;
}