/* ============================================================
   3D Flight Simulator - Styles
   ============================================================ */

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

body {
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    background: #000;
    color: #e0e0e0;
    overflow: hidden;
    width: 100vw;
    height: 100vh;
}

/* ---- Canvas Container ---- */
#canvas-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

#canvas-container canvas {
    display: block;
    width: 100%;
    height: 100%;
}

/* ---- Capital Selector ---- */
#selector-panel {
    position: fixed;
    top: 12px;
    left: 12px;
    z-index: 100;
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 0, 0, 0.65);
    padding: 8px 14px;
    border-radius: 6px;
    border: 1px solid rgba(100, 200, 255, 0.2);
    backdrop-filter: blur(8px);
}

#selector-panel label {
    font-size: 0.75rem;
    color: #88bbdd;
    text-transform: uppercase;
    letter-spacing: 1px;
}

#capital-select {
    padding: 5px 10px;
    font-size: 0.85rem;
    font-family: inherit;
    border: 1px solid rgba(100, 200, 255, 0.3);
    border-radius: 3px;
    background: rgba(10, 20, 40, 0.9);
    color: #c0e0f0;
    cursor: pointer;
    min-width: 200px;
    outline: none;
}

#capital-select:focus {
    border-color: rgba(100, 200, 255, 0.6);
}

#capital-select optgroup {
    color: #66aacc;
    font-weight: bold;
}

#capital-select option {
    color: #c0e0f0;
    background: #0a1428;
}

/* ---- HUD Overlay ---- */
#hud {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 50;
    pointer-events: none;
}

/* Location display */
#hud-location {
    position: absolute;
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
}

#hud-capital {
    font-size: 1rem;
    color: rgba(180, 220, 255, 0.9);
    font-weight: bold;
    text-shadow: 0 0 8px rgba(0, 0, 0, 0.7);
}

#hud-coords {
    font-size: 0.72rem;
    color: rgba(140, 190, 230, 0.7);
    margin-top: 2px;
    text-shadow: 0 0 6px rgba(0, 0, 0, 0.7);
}

/* Heading */
#hud-heading {
    position: absolute;
    top: 50px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.35);
    padding: 3px 16px;
    border-radius: 3px;
    border: 1px solid rgba(100, 200, 255, 0.15);
}

#hud-heading-value {
    font-size: 0.9rem;
    color: rgba(100, 220, 255, 0.85);
    text-shadow: 0 0 6px rgba(0, 100, 200, 0.3);
}

/* Speed (left side) */
#hud-speed {
    position: absolute;
    left: 30px;
    top: 50%;
    transform: translateY(-50%);
    text-align: center;
    background: rgba(0, 0, 0, 0.35);
    padding: 10px 14px;
    border-radius: 4px;
    border: 1px solid rgba(100, 200, 255, 0.15);
}

#hud-speed .hud-label {
    font-size: 0.65rem;
    color: rgba(100, 200, 255, 0.5);
    letter-spacing: 2px;
    margin-bottom: 4px;
}

#hud-speed-value {
    font-size: 1.6rem;
    color: rgba(100, 255, 180, 0.9);
    font-weight: bold;
    text-shadow: 0 0 10px rgba(0, 200, 100, 0.3);
}

#hud-speed .hud-unit {
    font-size: 0.6rem;
    color: rgba(100, 200, 255, 0.4);
    margin-top: 2px;
}

/* Altitude (right side) */
#hud-altitude {
    position: absolute;
    right: 30px;
    top: 50%;
    transform: translateY(-50%);
    text-align: center;
    background: rgba(0, 0, 0, 0.35);
    padding: 10px 14px;
    border-radius: 4px;
    border: 1px solid rgba(100, 200, 255, 0.15);
}

#hud-altitude .hud-label {
    font-size: 0.65rem;
    color: rgba(100, 200, 255, 0.5);
    letter-spacing: 2px;
    margin-bottom: 4px;
}

#hud-altitude-value {
    font-size: 1.6rem;
    color: rgba(255, 200, 100, 0.9);
    font-weight: bold;
    text-shadow: 0 0 10px rgba(200, 150, 0, 0.3);
}

#hud-altitude .hud-unit {
    font-size: 0.6rem;
    color: rgba(100, 200, 255, 0.4);
    margin-top: 2px;
}

/* Crosshair */
#hud-crosshair {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 1.5rem;
    color: rgba(200, 230, 255, 0.4);
    text-shadow: 0 0 4px rgba(0, 0, 0, 0.5);
    line-height: 1;
}

/* Pitch indicator */
#hud-pitch {
    position: absolute;
    right: 30px;
    top: 50%;
    transform: translateY(80px);
    text-align: center;
}

#hud-pitch-value {
    font-size: 0.75rem;
    color: rgba(180, 200, 255, 0.6);
}

/* ---- Click to Fly Prompt ---- */
#fly-prompt {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 80;
    text-align: center;
    pointer-events: none;
}

#fly-prompt .prompt-text {
    font-size: 1.8rem;
    color: rgba(180, 220, 255, 0.9);
    text-shadow: 0 0 20px rgba(50, 150, 255, 0.5);
    animation: pulse 2s ease-in-out infinite;
    letter-spacing: 2px;
    text-transform: uppercase;
}

@keyframes pulse {
    0%, 100% { opacity: 0.7; }
    50% { opacity: 1; }
}

/* ---- Controls Help ---- */
#controls-help {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 80;
    text-align: center;
    background: rgba(0, 0, 0, 0.5);
    padding: 8px 20px;
    border-radius: 6px;
    border: 1px solid rgba(100, 200, 255, 0.15);
    pointer-events: none;
    font-size: 0.72rem;
    color: rgba(160, 200, 230, 0.8);
    line-height: 1.6;
    transition: opacity 2s ease;
}

#controls-help.fade-out {
    opacity: 0;
}

/* ---- Loading Overlay ---- */
#loading-overlay {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 90;
    text-align: center;
    background: rgba(0, 10, 30, 0.85);
    padding: 30px 50px;
    border-radius: 10px;
    border: 1px solid rgba(100, 200, 255, 0.2);
    backdrop-filter: blur(10px);
}

#loading-text {
    font-size: 1rem;
    color: rgba(150, 200, 240, 0.9);
    margin-bottom: 14px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

#loading-bar-container {
    width: 240px;
    height: 4px;
    background: rgba(50, 80, 120, 0.5);
    border-radius: 2px;
    overflow: hidden;
    margin: 0 auto;
}

#loading-bar {
    width: 0%;
    height: 100%;
    background: linear-gradient(90deg, #2288cc, #44ccff);
    border-radius: 2px;
    transition: width 0.3s ease;
}

#loading-progress {
    font-size: 0.8rem;
    color: rgba(100, 180, 230, 0.7);
    margin-top: 8px;
}

/* ---- Welcome Screen ---- */
#welcome {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 70;
    text-align: center;
    pointer-events: none;
}

#welcome h1 {
    font-size: 2.2rem;
    color: rgba(180, 220, 255, 0.9);
    font-weight: 300;
    letter-spacing: 4px;
    text-transform: uppercase;
    text-shadow: 0 0 30px rgba(50, 150, 255, 0.3);
    margin-bottom: 8px;
}

#welcome p {
    font-size: 0.85rem;
    color: rgba(130, 170, 210, 0.6);
    letter-spacing: 1px;
}

#welcome .welcome-hint {
    margin-top: 20px;
    font-size: 0.75rem;
    color: rgba(100, 150, 200, 0.5);
    animation: pulse 3s ease-in-out infinite;
}

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

/* ---- Selector Panel Buttons ---- */
#selector-panel button {
    padding: 5px 12px;
    font-size: 0.75rem;
    font-family: inherit;
    border: 1px solid rgba(100, 200, 255, 0.3);
    border-radius: 3px;
    background: rgba(10, 20, 40, 0.9);
    color: #c0e0f0;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: border-color 0.2s, background 0.2s;
}

#selector-panel button:hover {
    border-color: rgba(100, 200, 255, 0.6);
    background: rgba(20, 40, 70, 0.9);
}

#btn-export-json {
    color: #88ddaa !important;
    border-color: rgba(100, 255, 160, 0.3) !important;
}

#btn-export-json:hover {
    border-color: rgba(100, 255, 160, 0.6) !important;
}

/* ---- Render Config Panel ---- */
#config-panel {
    position: fixed;
    top: 56px;
    left: 12px;
    z-index: 100;
    width: 320px;
    max-height: calc(100vh - 80px);
    overflow-y: auto;
    background: rgba(0, 8, 24, 0.88);
    padding: 14px 16px;
    border-radius: 6px;
    border: 1px solid rgba(100, 200, 255, 0.2);
    backdrop-filter: blur(10px);
    font-size: 0.72rem;
}

#config-panel h3 {
    font-size: 0.85rem;
    color: rgba(180, 220, 255, 0.9);
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 4px;
}

#config-panel .config-hint {
    font-size: 0.65rem;
    color: rgba(120, 170, 210, 0.6);
    margin-bottom: 12px;
    line-height: 1.4;
}

#config-panel fieldset {
    border: 1px solid rgba(100, 200, 255, 0.12);
    border-radius: 4px;
    padding: 8px 10px;
    margin-bottom: 10px;
}

#config-panel legend {
    font-size: 0.7rem;
    color: #66aacc;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 0 6px;
}

.cfg-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
}

.cfg-row label {
    flex: 0 0 100px;
    font-size: 0.68rem;
    color: rgba(160, 200, 230, 0.8);
    text-align: right;
}

.cfg-row input[type="range"] {
    flex: 1;
    height: 4px;
    -webkit-appearance: none;
    appearance: none;
    background: rgba(50, 80, 120, 0.5);
    border-radius: 2px;
    outline: none;
}

.cfg-row input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #44ccff;
    cursor: pointer;
    border: 1px solid rgba(0, 0, 0, 0.3);
}

.cfg-row input[type="range"]::-moz-range-thumb {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #44ccff;
    cursor: pointer;
    border: 1px solid rgba(0, 0, 0, 0.3);
}

.cfg-row input[type="checkbox"] {
    width: 14px;
    height: 14px;
    cursor: pointer;
    accent-color: #44ccff;
}

.cfg-row span {
    flex: 0 0 50px;
    font-size: 0.65rem;
    color: rgba(100, 220, 255, 0.85);
    text-align: right;
    font-variant-numeric: tabular-nums;
}

/* Scrollbar styling for config panel */
#config-panel::-webkit-scrollbar {
    width: 4px;
}

#config-panel::-webkit-scrollbar-track {
    background: transparent;
}

#config-panel::-webkit-scrollbar-thumb {
    background: rgba(100, 200, 255, 0.2);
    border-radius: 2px;
}