/* DeepSkies 3D Star Map - Game-Style HUD */

@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700;900&family=Share+Tech+Mono&display=swap');

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

:root {
    --hud-primary: #00ffff;
    --hud-secondary: #ff6600;
    --hud-warning: #ffaa00;
    --hud-danger: #ff3333;
    --hud-success: #00ff66;
    --hud-bg: rgba(0, 20, 40, 0.85);
    --hud-border: rgba(0, 255, 255, 0.3);
    --hud-glow: 0 0 10px rgba(0, 255, 255, 0.5);
}

body {
    background: #000;
    overflow: hidden;
    font-family: 'Share Tech Mono', 'Consolas', monospace;
    color: #fff;
}

#canvas {
    width: 100vw;
    height: 100vh;
    display: block;
}

/* Loading screen */
#loading {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 100;
    font-family: 'Orbitron', sans-serif;
    color: var(--hud-primary);
}

#loading.hidden {
    display: none;
}

.spinner {
    width: 60px;
    height: 60px;
    border: 3px solid rgba(0, 255, 255, 0.2);
    border-top-color: var(--hud-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
    box-shadow: var(--hud-glow);
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ============================================
   GAME-STYLE HUD - Top Left Ship Status
   ============================================ */
#hud {
    position: fixed;
    top: 20px;
    left: 20px;
    background: var(--hud-bg);
    padding: 0;
    border: 1px solid var(--hud-border);
    font-size: 13px;
    z-index: 50;
    min-width: 240px;
    clip-path: polygon(0 0, 100% 0, 100% calc(100% - 15px), calc(100% - 15px) 100%, 0 100%);
}

#hud::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--hud-primary), transparent);
}

#hud .hud-header {
    background: linear-gradient(90deg, rgba(0, 255, 255, 0.2), transparent);
    padding: 8px 15px;
    border-bottom: 1px solid var(--hud-border);
    font-family: 'Orbitron', sans-serif;
    font-size: 11px;
    letter-spacing: 3px;
    color: var(--hud-primary);
    text-transform: uppercase;
}

#hud .hud-content {
    padding: 12px 15px;
}

#hud .stat-group {
    margin-bottom: 12px;
}

#hud .stat-group:last-child {
    margin-bottom: 0;
}

#hud .stat-label {
    font-size: 10px;
    color: rgba(0, 255, 255, 0.6);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 2px;
}

#hud .stat-value {
    font-size: 18px;
    font-family: 'Orbitron', sans-serif;
    color: #fff;
    text-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
}

#hud .stat-value.mode-fly {
    color: var(--hud-success);
    text-shadow: 0 0 10px rgba(0, 255, 102, 0.5);
}

#hud .stat-value.mode-orbit {
    color: var(--hud-primary);
}

#hud .stat-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 0;
    border-bottom: 1px solid rgba(0, 255, 255, 0.1);
}

#hud .stat-row:last-child {
    border-bottom: none;
}

#hud .stat-row .label {
    font-size: 11px;
    color: rgba(255, 255, 255, 0.5);
}

#hud .stat-row .value {
    font-family: 'Orbitron', sans-serif;
    font-size: 14px;
    color: var(--hud-primary);
}

/* Scan line effect */
#hud::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(0, 0, 0, 0.1) 2px,
        rgba(0, 0, 0, 0.1) 4px
    );
    pointer-events: none;
}

/* ============================================
   BOTTOM BAR - Controls + Star Data side by side
   ============================================ */
#bottom-bar {
    position: fixed;
    bottom: 20px;
    left: 20px;
    display: flex;
    gap: 12px;
    z-index: 50;
}

/* ============================================
   CONTROLS PANEL - Bottom Left
   ============================================ */
#controls {
    background: var(--hud-bg);
    padding: 0;
    border: 1px solid var(--hud-border);
    font-size: 11px;
    min-width: 160px;
    clip-path: polygon(0 0, 100% 0, 100% 100%, 10px 100%, 0 calc(100% - 10px));
}

#controls::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--hud-primary), transparent);
}

#controls .controls-header {
    background: linear-gradient(90deg, rgba(0, 255, 255, 0.15), transparent);
    padding: 5px 10px;
    border-bottom: 1px solid var(--hud-border);
    font-family: 'Orbitron', sans-serif;
    font-size: 9px;
    letter-spacing: 2px;
    color: var(--hud-primary);
    text-transform: uppercase;
}

#controls .controls-content {
    padding: 8px 10px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px 12px;
}

#controls .control-item {
    display: flex;
    align-items: center;
    gap: 6px;
    color: rgba(255, 255, 255, 0.6);
}

#controls .key {
    background: rgba(0, 255, 255, 0.15);
    border: 1px solid var(--hud-border);
    padding: 2px 5px;
    font-family: 'Orbitron', sans-serif;
    font-size: 8px;
    color: var(--hud-primary);
    min-width: 32px;
    text-align: center;
}

#controls .action {
    font-size: 9px;
}

/* ============================================
   STAR DATA PANEL - Next to Controls
   ============================================ */
#filters {
    background: var(--hud-bg);
    padding: 0;
    border: 1px solid rgba(255, 102, 0, 0.3);
    font-size: 11px;
    min-width: 140px;
}

#filters::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 2px;
    height: 100%;
    background: var(--hud-secondary);
}

#filters .filters-header {
    background: linear-gradient(90deg, rgba(255, 102, 0, 0.15), transparent);
    padding: 5px 10px;
    border-bottom: 1px solid rgba(255, 102, 0, 0.2);
    font-family: 'Orbitron', sans-serif;
    font-size: 9px;
    letter-spacing: 2px;
    color: var(--hud-secondary);
    text-transform: uppercase;
}

#filters .filters-content {
    padding: 8px 10px;
}

#filters .filter-row {
    margin: 6px 0;
}

#filters .filter-label {
    font-size: 8px;
    color: rgba(255, 255, 255, 0.5);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 4px;
}

#filters input[type="range"] {
    width: 100%;
    height: 3px;
    -webkit-appearance: none;
    appearance: none;
    background: rgba(255, 102, 0, 0.2);
    border-radius: 2px;
    outline: none;
}

#filters input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 12px;
    height: 12px;
    background: var(--hud-secondary);
    border-radius: 0;
    cursor: pointer;
    clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
    box-shadow: 0 0 8px var(--hud-secondary);
}

#filters input[type="range"]::-moz-range-thumb {
    width: 12px;
    height: 12px;
    background: var(--hud-secondary);
    border: none;
    border-radius: 0;
    cursor: pointer;
    clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
}

#filters .filter-value {
    text-align: center;
    font-family: 'Orbitron', sans-serif;
    font-size: 14px;
    color: var(--hud-secondary);
    margin-top: 2px;
}

#filters .filter-note {
    display: none; /* Hide note in compact view */
}

#filters .load-stats {
    margin-top: 8px;
    padding-top: 6px;
    border-top: 1px solid rgba(255, 102, 0, 0.15);
    text-align: center;
    font-size: 9px;
}

#filters .load-stats .label {
    color: rgba(255, 255, 255, 0.4);
    display: block;
    margin-bottom: 2px;
}

#filters .load-stats .value {
    font-family: 'Orbitron', sans-serif;
    font-size: 10px;
    color: var(--hud-secondary);
}

/* ============================================
   ERROR DISPLAY
   ============================================ */
#error {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(40, 0, 0, 0.95);
    border: 2px solid var(--hud-danger);
    padding: 30px;
    text-align: center;
    z-index: 200;
    max-width: 400px;
    font-family: 'Orbitron', sans-serif;
}

#error.hidden {
    display: none;
}

#error h3 {
    color: var(--hud-danger);
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 3px;
}

#error p {
    color: rgba(255, 255, 255, 0.8);
}

/* ============================================
   CREDITS - Bottom Right
   ============================================ */
#credits {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: transparent;
    padding: 8px 12px;
    font-size: 10px;
    z-index: 50;
    color: rgba(255, 255, 255, 0.3);
}

#credits a {
    color: rgba(0, 255, 255, 0.5);
    text-decoration: none;
    transition: color 0.2s;
}

#credits a:hover {
    color: var(--hud-primary);
}

/* ============================================
   STAR TOOLTIP
   ============================================ */
#tooltip {
    position: fixed;
    background: var(--hud-bg);
    border: 1px solid var(--hud-border);
    padding: 0;
    font-size: 11px;
    z-index: 200;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.15s;
    max-width: 280px;
    clip-path: polygon(0 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%);
}

#tooltip::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--hud-primary);
}

#tooltip.visible {
    opacity: 1;
}

#tooltip .star-name {
    background: linear-gradient(90deg, rgba(0, 255, 255, 0.2), transparent);
    padding: 8px 12px;
    font-family: 'Orbitron', sans-serif;
    font-size: 12px;
    color: var(--hud-primary);
    border-bottom: 1px solid var(--hud-border);
    display: flex;
    align-items: center;
    gap: 8px;
}

#tooltip .star-color {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    box-shadow: 0 0 8px currentColor;
}

#tooltip .tooltip-content {
    padding: 10px 12px;
}

#tooltip .row {
    display: flex;
    justify-content: space-between;
    margin: 4px 0;
}

#tooltip .row .label {
    color: rgba(255, 255, 255, 0.5);
    font-size: 10px;
}

#tooltip .row .value {
    font-family: 'Orbitron', sans-serif;
    color: #fff;
    font-size: 11px;
}

#tooltip .extended-data {
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid var(--hud-border);
}

#tooltip .extended-data .row .label {
    color: rgba(0, 255, 102, 0.6);
}

/* ============================================
   NAV BAR - Top Right
   ============================================ */
#nav {
    position: fixed;
    top: 20px;
    right: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    z-index: 100;
}

#load-status {
    background: var(--hud-bg);
    border: 1px solid var(--hud-border);
    padding: 8px 14px;
    font-size: 11px;
    color: rgba(255, 255, 255, 0.6);
    font-family: 'Share Tech Mono', monospace;
}

#load-status.loading {
    color: var(--hud-primary);
    animation: pulse 1s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

#nav button {
    background: var(--hud-bg);
    border: 1px solid var(--hud-border);
    padding: 8px 16px;
    font-family: 'Orbitron', sans-serif;
    font-size: 10px;
    letter-spacing: 1px;
    color: var(--hud-primary);
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.2s;
}

#nav button:hover {
    background: rgba(0, 255, 255, 0.1);
    box-shadow: var(--hud-glow);
}

/* ============================================
   MODAL - About Panel (Game-Style)
   ============================================ */
#modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 10, 20, 0.95);
    z-index: 300;
    display: none;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(5px);
}

#modal-overlay.visible {
    display: flex;
}

#modal {
    background: linear-gradient(180deg, rgba(0, 30, 50, 0.98), rgba(0, 15, 30, 0.98));
    border: 1px solid var(--hud-border);
    padding: 0;
    max-width: 650px;
    max-height: 85vh;
    overflow-y: auto;
    position: relative;
    clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 20px 100%, 0 calc(100% - 20px));
}

#modal::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--hud-primary), var(--hud-secondary), var(--hud-primary));
}

#modal::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 3px,
        rgba(0, 0, 0, 0.05) 3px,
        rgba(0, 0, 0, 0.05) 6px
    );
    pointer-events: none;
}

#modal h2 {
    background: linear-gradient(90deg, rgba(0, 255, 255, 0.15), transparent);
    padding: 20px 30px;
    font-family: 'Orbitron', sans-serif;
    color: var(--hud-primary);
    font-size: 16px;
    letter-spacing: 3px;
    text-transform: uppercase;
    border-bottom: 1px solid var(--hud-border);
    margin: 0;
    text-shadow: 0 0 20px rgba(0, 255, 255, 0.5);
}

#modal h3 {
    font-family: 'Orbitron', sans-serif;
    color: var(--hud-secondary);
    font-size: 11px;
    letter-spacing: 3px;
    text-transform: uppercase;
    margin: 25px 30px 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(255, 102, 0, 0.3);
    text-shadow: 0 0 10px rgba(255, 102, 0, 0.3);
}

#modal p {
    color: rgba(255, 255, 255, 0.75);
    font-size: 12px;
    line-height: 1.8;
    margin: 12px 30px;
}

#modal p strong {
    color: var(--hud-primary);
    font-weight: normal;
}

#modal .stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin: 15px 30px;
}

#modal .stat {
    background: rgba(0, 255, 255, 0.03);
    border: 1px solid rgba(0, 255, 255, 0.2);
    padding: 15px 12px;
    text-align: center;
    position: relative;
}

#modal .stat::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--hud-primary), transparent);
}

#modal .stat .value {
    font-family: 'Orbitron', sans-serif;
    font-size: 20px;
    color: var(--hud-primary);
    text-shadow: 0 0 15px rgba(0, 255, 255, 0.6);
}

#modal .stat .label {
    font-size: 9px;
    color: rgba(255, 255, 255, 0.4);
    margin-top: 6px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

#modal .tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 12px 30px 20px;
}

#modal .tech {
    background: rgba(255, 102, 0, 0.08);
    border: 1px solid rgba(255, 102, 0, 0.4);
    padding: 5px 14px;
    font-family: 'Orbitron', sans-serif;
    font-size: 9px;
    color: var(--hud-secondary);
    text-transform: uppercase;
    letter-spacing: 2px;
}

#modal-close {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--hud-border);
    color: rgba(255, 255, 255, 0.5);
    width: 32px;
    height: 32px;
    font-size: 20px;
    cursor: pointer;
    transition: all 0.2s;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

#modal-close:hover {
    color: var(--hud-danger);
    border-color: var(--hud-danger);
    background: rgba(255, 51, 51, 0.1);
}

#modal a {
    color: var(--hud-primary);
    text-decoration: none;
    border-bottom: 1px solid rgba(0, 255, 255, 0.3);
    transition: all 0.2s;
}

#modal a:hover {
    color: #fff;
    border-bottom-color: var(--hud-primary);
    text-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
}

/* Modal body wrapper */
#modal .modal-body {
    padding-bottom: 20px;
}

#modal .modal-body h3 {
    margin-left: 0;
    margin-right: 0;
    padding-left: 30px;
    padding-right: 30px;
}

#modal .modal-footer {
    margin-top: 30px;
    padding-top: 15px;
    border-top: 1px solid var(--hud-border);
    font-size: 10px;
    color: rgba(255, 255, 255, 0.4);
    text-align: center;
}

#modal .modal-footer a {
    color: rgba(0, 255, 255, 0.6);
    border-bottom: none;
}

#modal .modal-footer a:hover {
    color: var(--hud-primary);
}

/* Modal scrollbar styling */
#modal::-webkit-scrollbar {
    width: 6px;
}

#modal::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.3);
}

#modal::-webkit-scrollbar-thumb {
    background: var(--hud-border);
    border-radius: 3px;
}

#modal::-webkit-scrollbar-thumb:hover {
    background: var(--hud-primary);
}

/* ============================================
   MODE TOAST - Center Screen
   ============================================ */
#mode-toast {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--hud-bg);
    border: 2px solid var(--hud-primary);
    padding: 25px 50px;
    font-family: 'Orbitron', sans-serif;
    font-size: 28px;
    font-weight: bold;
    z-index: 150;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 4px;
}

#mode-toast.visible {
    opacity: 1;
}

#mode-toast.fly-mode {
    border-color: var(--hud-success);
    color: var(--hud-success);
    box-shadow: 0 0 30px rgba(0, 255, 102, 0.3);
}

#mode-toast.orbit-mode {
    border-color: var(--hud-primary);
    color: var(--hud-primary);
    box-shadow: 0 0 30px rgba(0, 255, 255, 0.3);
}

#mode-toast .mode-icon {
    font-size: 14px;
    margin-bottom: 5px;
    opacity: 0.7;
}

#mode-toast .mode-name {
    display: block;
}

#mode-toast .mode-hint {
    font-size: 11px;
    color: rgba(255, 255, 255, 0.4);
    font-weight: normal;
    margin-top: 10px;
    letter-spacing: 2px;
}

/* ============================================
   CONTEXT MENU - Right Click
   ============================================ */
#context-menu {
    position: fixed;
    background: var(--hud-bg);
    border: 1px solid var(--hud-border);
    padding: 0;
    min-width: 180px;
    z-index: 200;
    display: none;
}

#context-menu::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--hud-primary);
}

#context-menu.visible {
    display: block;
}

#context-menu .menu-title {
    background: linear-gradient(90deg, rgba(0, 255, 255, 0.15), transparent);
    padding: 8px 14px;
    font-family: 'Orbitron', sans-serif;
    font-size: 9px;
    color: rgba(0, 255, 255, 0.7);
    text-transform: uppercase;
    letter-spacing: 2px;
    border-bottom: 1px solid var(--hud-border);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 220px;
}

#context-menu .menu-item {
    padding: 10px 14px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: background 0.15s;
    border-left: 2px solid transparent;
}

#context-menu .menu-item:hover {
    background: rgba(0, 255, 255, 0.1);
    border-left-color: var(--hud-primary);
}

#context-menu .menu-icon {
    font-family: 'Orbitron', sans-serif;
    font-size: 12px;
    width: 20px;
    text-align: center;
    color: var(--hud-primary);
}

#context-menu .menu-text {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.8);
    text-transform: uppercase;
    letter-spacing: 1px;
}

#context-menu .menu-divider {
    height: 1px;
    background: var(--hud-border);
    margin: 4px 0;
}

/* ============================================
   WAYPOINT TARGET DISPLAY - Minimal Game-Style
   ============================================ */
#target-display {
    position: fixed;
    z-index: 120;
    display: none;
    pointer-events: none;
    /* Center on target position */
    transform: translate(-50%, -50%);
}

#target-display.visible {
    display: flex;
    flex-direction: column;
    align-items: center;
}

#target-display.offscreen {
    opacity: 0.5;
}

/* Small diamond marker */
#target-display .waypoint-diamond {
    width: 12px;
    height: 12px;
    border: 2px solid var(--hud-secondary);
    transform: rotate(45deg);
    background: transparent;
    box-shadow: 0 0 8px var(--hud-secondary);
}

/* Distance label below */
#target-display .waypoint-dist {
    margin-top: 8px;
    font-family: 'Orbitron', sans-serif;
    font-size: 11px;
    color: var(--hud-secondary);
    text-shadow: 0 0 6px rgba(255, 102, 0, 0.8), 0 1px 2px rgba(0, 0, 0, 0.9);
    white-space: nowrap;
}

/* ============================================
   CROSSHAIR - Screen Center (optional)
   ============================================ */
#crosshair {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 100;
    opacity: 0.3;
}

#crosshair .h-line,
#crosshair .v-line {
    position: absolute;
    background: var(--hud-primary);
}

#crosshair .h-line {
    width: 20px;
    height: 1px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

#crosshair .v-line {
    width: 1px;
    height: 20px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

#crosshair .corner {
    position: absolute;
    width: 8px;
    height: 8px;
    border: 1px solid var(--hud-primary);
}

#crosshair .corner.tl { top: -15px; left: -15px; border-right: none; border-bottom: none; }
#crosshair .corner.tr { top: -15px; right: -15px; border-left: none; border-bottom: none; }
#crosshair .corner.bl { bottom: -15px; left: -15px; border-right: none; border-top: none; }
#crosshair .corner.br { bottom: -15px; right: -15px; border-left: none; border-top: none; }

/* Hide unused old elements */
#hud h3 { display: none; }
#hud .stat.mode-stat { display: none; }