/* ============================================
   RETRO RADAR DISPLAY THEME
   Night vision friendly - red monochrome
   ============================================ */

:root {
    --bg-primary: #000000;
    --bg-secondary: #0a0000;
    --red-bright: #ff0000;
    --red-medium: #cc0000;
    --red-dim: #880000;
    --red-faint: #440000;
    --red-glow: rgba(255, 0, 0, 0.4);
}

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

html {
    /* Prevent overscroll bounce */
    overscroll-behavior: none;
    overflow: hidden;
    position: fixed;
    width: 100%;
    height: 100%;
}

body {
    font-family: 'Courier New', 'Monaco', 'Consolas', monospace;
    background: var(--bg-primary);
    color: var(--red-bright);
    overflow: hidden;
    height: 100dvh;
    width: 100vw;
    /* Prevent zoom and touch issues */
    touch-action: pan-x pan-y;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    user-select: none;
    overscroll-behavior: none;
    position: fixed;
}

@supports not (height: 100dvh) {
    body {
        height: 100vh;
    }
}

#app {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
    /* Prevent double-tap zoom */
    touch-action: manipulation;
}

/* Scanline overlay */
#app::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(0, 0, 0, 0.15) 2px,
        rgba(0, 0, 0, 0.15) 4px
    );
    pointer-events: none;
    z-index: 1000;
}

/* ============================================
   Start Screen
   ============================================ */
#start-screen {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 20px 30px;
    z-index: 100;
}

#start-screen h1 {
    font-size: 36px;
    margin-bottom: 20px;
    color: var(--red-bright);
    text-transform: uppercase;
    letter-spacing: 4px;
    text-shadow: 0 0 10px var(--red-glow);
}

#start-screen p {
    font-size: 14px;
    color: var(--red-medium);
    margin-bottom: 30px;
    max-width: 300px;
    line-height: 1.6;
}

#start-btn {
    background: transparent;
    border: 2px solid var(--red-bright);
    color: var(--red-bright);
    padding: 15px 40px;
    font-size: 16px;
    font-family: inherit;
    text-transform: uppercase;
    letter-spacing: 2px;
    cursor: pointer;
    transition: all 0.2s;
    text-shadow: 0 0 10px var(--red-glow);
    box-shadow: 0 0 10px var(--red-glow), inset 0 0 10px rgba(255, 0, 0, 0.1);
}

#start-btn:active {
    background: var(--red-bright);
    color: #000;
    text-shadow: none;
}

#start-screen .note {
    font-size: 11px;
    color: var(--red-dim);
    margin-top: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ============================================
   Desktop Screen
   ============================================ */
#desktop-screen {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 40px;
    z-index: 100;
}

#desktop-screen h1 {
    font-size: 48px;
    margin-bottom: 30px;
    color: var(--red-bright);
    text-transform: uppercase;
    letter-spacing: 4px;
    text-shadow: 0 0 10px var(--red-glow);
}

#desktop-screen p {
    font-size: 16px;
    color: var(--red-medium);
    margin-bottom: 20px;
    max-width: 500px;
    line-height: 1.6;
}

#desktop-screen .qr-container {
    margin-top: 40px;
    padding: 25px;
    border: 1px solid var(--red-dim);
    background: transparent;
}

#desktop-screen .qr-code {
    /* QR code is generated in red natively */
}

#desktop-screen .qr-label {
    margin-top: 15px;
    margin-bottom: 0;
    font-size: 12px;
    color: var(--red-dim);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ============================================
   List View
   ============================================ */
#list-view {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    display: flex;
    flex-direction: column;
    z-index: 10;
}

#list-header {
    background: transparent;
    padding: 15px 25px;
    padding-top: max(15px, env(safe-area-inset-top));
    border-bottom: 1px solid var(--red-dim);
}

#list-header h1 {
    font-size: 18px;
    margin-bottom: 8px;
    color: var(--red-bright);
    text-transform: uppercase;
    letter-spacing: 2px;
    text-shadow: 0 0 10px var(--red-glow);
}

#current-orientation {
    display: flex;
    gap: 20px;
    font-size: 12px;
    color: var(--red-medium);
}

#heading-display {
    color: var(--red-bright);
}

/* Radar Display */
#radar-container {
    flex-shrink: 0;
    display: flex;
    justify-content: center;
    padding: 15px;
    padding-bottom: 10px;
}

#radar-canvas {
    width: 100%;
    max-width: 280px;
    aspect-ratio: 1;
}

#object-list {
    flex: 1;
    overflow-y: auto;
    padding: 10px;
    padding-bottom: 20px;
    /* Allow vertical scrolling */
    touch-action: pan-y;
    -webkit-overflow-scrolling: touch;
}

/* Object Item */
.object-item {
    display: flex;
    align-items: center;
    background: transparent;
    padding: 12px;
    margin-bottom: 8px;
    border: 1px solid var(--red-dim);
    cursor: pointer;
    transition: all 0.2s;
}

.object-item:active {
    background: rgba(255, 0, 0, 0.1);
    border-color: var(--red-bright);
}

.object-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    margin-right: 12px;
    border: 1px solid var(--red-dim);
    color: var(--red-bright);
    background: transparent;
}

/* All icons same red color for night vision */
.object-icon.sun,
.object-icon.moon,
.object-icon.planet,
.object-icon.star,
.object-icon.aircraft,
.object-icon.satellite {
    color: var(--red-bright);
}

.object-info {
    flex: 1;
    min-width: 0;
}

.object-name {
    font-size: 14px;
    color: var(--red-bright);
    margin-bottom: 2px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.object-subtitle {
    font-size: 11px;
    color: var(--red-medium);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.object-subtitle.below-horizon {
    color: var(--red-dim);
}

/* Mini Indicators Container */
.mini-indicators {
    display: flex;
    gap: 8px;
    margin-left: 8px;
}

/* Mini Compass */
.mini-compass {
    width: 36px;
    height: 36px;
    position: relative;
    border: 1px solid var(--red-dim);
    background: transparent;
}

.mini-compass.aligned {
    border-color: var(--red-bright);
    box-shadow: 0 0 8px var(--red-glow);
}

.compass-arrow {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-bottom: 12px solid var(--red-medium);
    transform-origin: center bottom;
    margin-left: -4px;
    margin-top: -12px;
}

.mini-compass.aligned .compass-arrow {
    border-bottom-color: var(--red-bright);
    filter: drop-shadow(0 0 4px var(--red-glow));
}

/* Mini Level */
.mini-level {
    width: 16px;
    height: 36px;
    position: relative;
    background: transparent;
    border: 1px solid var(--red-dim);
    overflow: hidden;
}

.mini-level.aligned {
    border-color: var(--red-bright);
    box-shadow: 0 0 8px var(--red-glow);
}

.level-bubble {
    position: absolute;
    left: 50%;
    width: 10px;
    height: 10px;
    background: transparent;
    border: 2px solid var(--red-medium);
    transform: translateX(-50%);
    transition: top 0.1s ease-out;
}

.mini-level.aligned .level-bubble {
    border-color: var(--red-bright);
    box-shadow: 0 0 4px var(--red-glow);
}

/* List Footer */
#list-footer {
    background: transparent;
    padding: 15px 20px;
    padding-bottom: max(15px, env(safe-area-inset-bottom));
    border-top: 1px solid var(--red-dim);
    display: flex;
    justify-content: center;
    gap: 15px;
}

.footer-btn {
    background: transparent;
    border: 1px solid var(--red-dim);
    color: var(--red-medium);
    padding: 10px 25px;
    font-size: 14px;
    font-family: inherit;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    text-decoration: none;
}

.footer-btn:active {
    border-color: var(--red-bright);
    color: var(--red-bright);
}

/* ============================================
   Alignment View
   ============================================ */
#alignment-view {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100dvh;
    background: var(--bg-primary);
    display: flex;
    flex-direction: column;
    z-index: 20;
}

#alignment-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    padding-top: max(15px, env(safe-area-inset-top));
    background: transparent;
    border-bottom: 1px solid var(--red-dim);
}

#back-btn {
    background: none;
    border: none;
    color: var(--red-medium);
    font-size: 14px;
    font-family: inherit;
    text-transform: uppercase;
    cursor: pointer;
    padding: 8px 0;
}

#target-name {
    font-size: 16px;
    color: var(--red-bright);
    text-transform: uppercase;
    letter-spacing: 2px;
    text-shadow: 0 0 10px var(--red-glow);
}

#header-spacer {
    width: 50px;
}

#alignment-content {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 15px;
    gap: 15px;
    overflow: auto;
}

/* Compass Section */
#compass-section {
    display: flex;
    flex-direction: column;
    align-items: center;
}

#compass-label, #altitude-label {
    font-size: 11px;
    color: var(--red-dim);
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

#compass-guide {
    width: 180px;
    height: 180px;
    position: relative;
}

#compass-ring {
    width: 100%;
    height: 100%;
    border: 2px solid var(--red-dim);
    border-radius: 50%;
    position: relative;
    transition: transform 0.1s ease-out;
}

.cardinal-mark {
    position: absolute;
    font-size: 14px;
    color: var(--red-dim);
}

.cardinal-mark.north {
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--red-bright);
    text-shadow: 0 0 8px var(--red-glow);
}

.cardinal-mark.south {
    bottom: 8px;
    left: 50%;
    transform: translateX(-50%);
}

.cardinal-mark.east {
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
}

.cardinal-mark.west {
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
}

#target-marker {
    position: absolute;
    top: -6px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-top: 14px solid var(--red-medium);
    transform-origin: center calc(90px + 6px);
}

#target-marker.aligned {
    border-top-color: var(--red-bright);
    filter: drop-shadow(0 0 6px var(--red-glow));
}

#compass-needle {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 2px;
    height: 60px;
    background: linear-gradient(to top, var(--red-faint) 50%, var(--red-bright) 50%);
    transform: translate(-50%, -100%);
}

#turn-instruction {
    margin-top: 12px;
    font-size: 14px;
    color: var(--red-medium);
    text-transform: uppercase;
    letter-spacing: 1px;
}

#turn-instruction.aligned {
    color: var(--red-bright);
    text-shadow: 0 0 8px var(--red-glow);
}

/* Altitude Section */
#altitude-section {
    display: flex;
    flex-direction: column;
    align-items: center;
}

#altitude-guide {
    width: 60px;
    height: 180px;
    position: relative;
}

#level-track {
    width: 100%;
    height: 100%;
    background: transparent;
    border: 2px solid var(--red-dim);
    position: relative;
    overflow: visible;
}

.altitude-mark {
    position: absolute;
    right: -30px;
    font-size: 10px;
    color: var(--red-dim);
    transform: translateY(-50%);
}

.altitude-mark[data-alt="90"] { top: 0%; }
.altitude-mark[data-alt="60"] { top: 16.7%; }
.altitude-mark[data-alt="30"] { top: 33.3%; }
.altitude-mark[data-alt="0"] { top: 50%; color: var(--red-medium); }
.altitude-mark[data-alt="-30"] { top: 66.7%; }

#target-altitude-marker {
    position: absolute;
    left: -8px;
    right: -8px;
    height: 2px;
    background: var(--red-medium);
    transform: translateY(-50%);
    transition: top 0.1s ease-out;
}

#target-altitude-marker.aligned {
    background: var(--red-bright);
    box-shadow: 0 0 8px var(--red-glow);
}

#current-pitch-indicator {
    position: absolute;
    left: 50%;
    width: 20px;
    height: 20px;
    background: transparent;
    border: 2px solid var(--red-bright);
    transform: translate(-50%, -50%);
    transition: top 0.1s ease-out;
}

#tilt-instruction {
    margin-top: 12px;
    font-size: 14px;
    color: var(--red-medium);
    text-transform: uppercase;
    letter-spacing: 1px;
}

#tilt-instruction.aligned {
    color: var(--red-bright);
    text-shadow: 0 0 8px var(--red-glow);
}

/* Alignment Status */
#alignment-status {
    flex-shrink: 0;
    padding: 12px 25px;
    background: transparent;
    border: 1px solid var(--red-dim);
    margin: 10px 15px;
}

#alignment-status.aligned {
    border-color: var(--red-bright);
    box-shadow: 0 0 15px var(--red-glow);
}

#status-text {
    font-size: 14px;
    color: var(--red-medium);
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 1px;
    white-space: nowrap;
}

#alignment-status.aligned #status-text {
    color: var(--red-bright);
    text-shadow: 0 0 8px var(--red-glow);
}

/* Target Details */
#target-details {
    flex-shrink: 0;
    background: transparent;
    padding: 12px 20px;
    padding-bottom: max(20px, calc(env(safe-area-inset-bottom) + 8px));
    text-align: center;
    border-top: 1px solid var(--red-dim);
}

#target-type {
    font-size: 12px;
    color: var(--red-medium);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

#target-coords {
    font-size: 11px;
    color: var(--red-dim);
}

#target-extra {
    font-size: 11px;
    color: var(--red-medium);
    margin-top: 6px;
}

/* ============================================
   Events Panel
   ============================================ */
#events-view {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100dvh;
    background: var(--bg-primary);
    display: flex;
    flex-direction: column;
    z-index: 20;
}

#events-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    padding-top: max(15px, env(safe-area-inset-top));
    background: transparent;
    border-bottom: 1px solid var(--red-dim);
    flex-shrink: 0;
}

#events-back-btn {
    background: none;
    border: none;
    color: var(--red-medium);
    font-size: 14px;
    font-family: inherit;
    text-transform: uppercase;
    cursor: pointer;
    padding: 8px 0;
}

#events-title {
    font-size: 16px;
    color: var(--red-bright);
    text-transform: uppercase;
    letter-spacing: 2px;
    text-shadow: 0 0 10px var(--red-glow);
}

#events-header-spacer {
    width: 50px;
}

#events-tabs {
    display: flex;
    gap: 0;
    padding: 0 20px;
    border-bottom: 1px solid var(--red-dim);
    flex-shrink: 0;
}

.events-tab {
    flex: 1;
    padding: 12px;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--red-dim);
    font-family: inherit;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
}

.events-tab.active {
    color: var(--red-bright);
    border-bottom-color: var(--red-bright);
}

#events-content {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    padding: 20px;
}

#events-loading {
    text-align: center;
    padding: 40px;
    color: var(--red-medium);
    text-transform: uppercase;
    letter-spacing: 1px;
}

#events-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.event-card {
    background: var(--bg-secondary);
    border: 1px solid var(--red-dim);
    padding: 15px;
}

.event-date {
    font-size: 12px;
    color: var(--red-bright);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--red-faint);
}

.event-time {
    font-size: 22px;
    color: var(--red-bright);
    margin-bottom: 4px;
}

.event-duration {
    font-size: 11px;
    color: var(--red-medium);
    margin-bottom: 12px;
}

.event-details {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 10px;
    font-size: 11px;
}

.event-detail {
    text-align: center;
}

.event-detail-label {
    color: var(--red-dim);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.event-detail-value {
    color: var(--red-medium);
    font-size: 13px;
}

.event-detail-sub {
    color: var(--red-dim);
    font-size: 10px;
    margin-top: 2px;
}

.event-brightness {
    margin-top: 12px;
    padding-top: 10px;
    border-top: 1px solid var(--red-faint);
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 11px;
}

.brightness-label {
    color: var(--red-dim);
    text-transform: uppercase;
}

.brightness-value {
    color: var(--red-medium);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.brightness-very-bright .brightness-value {
    color: var(--red-bright);
    text-shadow: 0 0 8px var(--red-glow);
}

.brightness-bright .brightness-value {
    color: var(--red-bright);
}

.brightness-moderate .brightness-value {
    color: var(--red-medium);
}

.brightness-faint .brightness-value {
    color: var(--red-dim);
}

.event-train-badge {
    display: inline-block;
    background: var(--red-faint);
    border: 1px solid var(--red-dim);
    padding: 2px 6px;
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-left: 8px;
    vertical-align: middle;
}

.event-sat-count {
    font-size: 12px;
    color: var(--red-medium);
    margin-bottom: 4px;
}

.event-sat-name {
    font-size: 11px;
    color: var(--red-dim);
    margin-top: 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

#events-info {
    padding: 15px 20px;
    border-top: 1px solid var(--red-dim);
    font-size: 11px;
    color: var(--red-dim);
    text-align: center;
    flex-shrink: 0;
}

.no-events {
    text-align: center;
    padding: 40px 20px;
    color: var(--red-medium);
}

.event-card.not-visible {
    opacity: 0.5;
}

.event-visible-tag {
    font-size: 10px;
    color: var(--red-dim);
    margin-left: 10px;
}

/* Notification Section */
#notify-section {
    padding: 15px 20px;
    padding-bottom: max(20px, env(safe-area-inset-bottom));
    border-top: 1px solid var(--red-dim);
    flex-shrink: 0;
}

#notify-toggle {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

#notify-label {
    font-size: 12px;
    color: var(--red-medium);
    text-transform: uppercase;
    letter-spacing: 1px;
}

#notify-btn {
    padding: 8px 16px;
    font-size: 12px;
    font-family: 'Courier New', monospace;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: 1px solid var(--red-dim);
    background: transparent;
    color: var(--red-medium);
    cursor: pointer;
}

#notify-btn:active {
    background: var(--red-faint);
}

#notify-btn.notify-on {
    border-color: var(--red-bright);
    color: var(--red-bright);
}

#notify-settings {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px dashed var(--red-faint);
}

#notify-settings label {
    display: block;
    margin-bottom: 8px;
    font-size: 12px;
    color: var(--red-dim);
}

#notify-settings select {
    background: transparent;
    border: 1px solid var(--red-dim);
    color: var(--red-medium);
    padding: 4px 8px;
    font-family: 'Courier New', monospace;
    font-size: 12px;
    margin: 0 4px;
}

#notify-settings input[type="checkbox"] {
    margin-right: 8px;
    accent-color: var(--red-bright);
}

#notify-status {
    font-size: 11px;
    color: var(--red-dim);
    margin-top: 8px;
    text-align: center;
}

/* ============================================
   Settings Panel
   ============================================ */
#settings-panel {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    padding: 20px;
    padding-bottom: max(20px, env(safe-area-inset-bottom));
    border-top: 1px solid var(--red-dim);
    z-index: 50;
}

#settings-panel h3 {
    margin-bottom: 15px;
    color: var(--red-bright);
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

#settings-panel label {
    display: flex;
    align-items: center;
    margin: 12px 0;
    font-size: 14px;
    color: var(--red-medium);
}

#settings-panel input[type="checkbox"] {
    margin-right: 10px;
    width: 18px;
    height: 18px;
    accent-color: var(--red-bright);
}

#close-settings {
    width: 100%;
    margin-top: 15px;
    background: transparent;
    border: 1px solid var(--red-dim);
    color: var(--red-medium);
    padding: 12px;
    font-family: inherit;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    font-size: 14px;
}

#close-settings:active {
    border-color: var(--red-bright);
    color: var(--red-bright);
}

/* ============================================
   Error Display
   ============================================ */
#error {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--bg-primary);
    border: 1px solid var(--red-bright);
    padding: 20px;
    text-align: center;
    z-index: 200;
    max-width: 300px;
}

#error-message {
    margin-bottom: 15px;
    line-height: 1.5;
    color: var(--red-bright);
    font-size: 14px;
}

#error-dismiss {
    background: transparent;
    color: var(--red-bright);
    border: 1px solid var(--red-bright);
    padding: 10px 30px;
    cursor: pointer;
    font-family: inherit;
    text-transform: uppercase;
    letter-spacing: 1px;
}

#error-dismiss:active {
    background: var(--red-bright);
    color: #000;
}

/* ============================================
   Location Warning Banner
   ============================================ */
#location-warning {
    position: absolute;
    bottom: 100px;
    left: 15px;
    right: 15px;
    z-index: 60;
}

#location-warning-content {
    background: var(--bg-primary);
    border: 1px solid var(--red-medium);
    padding: 12px;
    text-align: center;
}

#location-warning-content p {
    margin: 0 0 8px 0;
    font-size: 12px;
    line-height: 1.4;
    color: var(--red-medium);
}

#location-warning-content p:last-of-type {
    font-size: 10px;
    color: var(--red-dim);
}

#location-warning-dismiss {
    background: transparent;
    border: 1px solid var(--red-dim);
    color: var(--red-medium);
    padding: 6px 15px;
    font-size: 12px;
    font-family: inherit;
    text-transform: uppercase;
    cursor: pointer;
    margin-top: 4px;
}

/* ============================================
   Debug Panel
   ============================================ */
#debug-toggle {
    position: fixed;
    bottom: 100px;
    right: 15px;
    background: var(--bg-primary);
    border: 2px solid var(--red-bright);
    color: var(--red-bright);
    padding: 10px 15px;
    font-family: inherit;
    font-size: 12px;
    text-transform: uppercase;
    cursor: pointer;
    z-index: 500;
    box-shadow: 0 0 10px var(--red-glow);
}

#debug-toggle:active {
    border-color: var(--red-bright);
    color: var(--red-bright);
}

#debug-panel {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: rgba(0, 0, 0, 0.95);
    border-top: 1px solid var(--red-dim);
    z-index: 600;
    display: flex;
    flex-direction: column;
}

#debug-header {
    display: flex;
    align-items: center;
    padding: 10px 15px;
    border-bottom: 1px solid var(--red-dim);
    gap: 10px;
}

#debug-header span {
    flex: 1;
    font-size: 12px;
    color: var(--red-bright);
    letter-spacing: 2px;
}

#debug-header button {
    background: transparent;
    border: 1px solid var(--red-dim);
    color: var(--red-dim);
    padding: 5px 10px;
    font-family: inherit;
    font-size: 10px;
    text-transform: uppercase;
    cursor: pointer;
}

#debug-header button:active {
    border-color: var(--red-bright);
    color: var(--red-bright);
}

#debug-log {
    flex: 1;
    overflow-y: auto;
    padding: 10px 15px;
    font-size: 11px;
    line-height: 1.6;
    color: var(--red-medium);
    -webkit-user-select: text;
    user-select: text;
}

.debug-entry {
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--red-faint);
}

.debug-entry:last-child {
    border-bottom: none;
}

.debug-time {
    color: var(--red-dim);
    font-size: 10px;
    margin-bottom: 5px;
}

.debug-type {
    color: var(--red-bright);
    font-size: 10px;
    text-transform: uppercase;
    margin-bottom: 5px;
}

.debug-message {
    color: var(--red-medium);
    white-space: pre-wrap;
    word-break: break-all;
}

/* ============================================
   Utility Classes
   ============================================ */
.hidden {
    display: none !important;
}

/* Empty state for object list */
.empty-state {
    text-align: center;
    padding: 50px 20px;
    color: var(--red-dim);
}

.empty-state p {
    margin-top: 8px;
    font-size: 12px;
}

/* ============================================
   Landscape Adjustments
   ============================================ */
@media (orientation: landscape) {
    #alignment-content {
        flex-direction: row;
        gap: 40px;
    }

    #compass-guide {
        width: 140px;
        height: 140px;
    }

    #altitude-guide {
        height: 140px;
    }

    #settings-panel {
        left: 20%;
        right: 20%;
        bottom: 20px;
    }
}

/* ============================================
   Touch Feedback
   ============================================ */
@media (hover: none) {
    #start-btn:active,
    .footer-btn:active,
    #back-btn:active,
    #close-settings:active {
        opacity: 0.8;
    }
}