/* ==========================================================================
   织星者 (Constellation Weaver) - Core Stylesheet
   ========================================================================== */

/* Global Custom Properties */
:root {
    --bg-space: #06050b;
    --card-bg: rgba(14, 11, 26, 0.65);
    --card-border: rgba(0, 240, 255, 0.15);
    
    /* Neon Palette */
    --neon-cyan: #00f0ff;
    --neon-magenta: #ff007f;
    --neon-gold: #ffd700;
    --neon-blue: #3900ff;
    --text-white: #ffffff;
    --text-dim: #a5a2bb;
    
    /* Fonts */
    --font-hud: 'Orbitron', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Glow Shadows */
    --glow-cyan: 0 0 15px rgba(0, 240, 255, 0.4);
    --glow-magenta: 0 0 15px rgba(255, 0, 127, 0.4);
    --glow-gold: 0 0 15px rgba(255, 215, 0, 0.4);
    --shadow-inset: inset 0 1px 1px rgba(255, 255, 255, 0.1);
}

/* Reset and Core Styling */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    outline: none;
    -webkit-tap-highlight-color: transparent;
}

body {
    background-color: var(--bg-space);
    color: var(--text-white);
    font-family: var(--font-body);
    min-height: 100vh;
    overflow-x: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Cosmic Animated Background */
.cosmic-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -10;
    background: radial-gradient(circle at center, #0f0a21 0%, #030206 100%);
    overflow: hidden;
}

.starfield {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(1px 1px at 20px 30px, #fff, rgba(0,0,0,0)),
        radial-gradient(1.5px 1.5px at 150px 70px, rgba(255,255,255,0.8), rgba(0,0,0,0)),
        radial-gradient(1px 1px at 80px 220px, #00f0ff, rgba(0,0,0,0)),
        radial-gradient(2px 2px at 290px 140px, #ff007f, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 320px 290px, #fff, rgba(0,0,0,0)),
        radial-gradient(1.5px 1.5px at 450px 350px, rgba(255,255,255,0.7), rgba(0,0,0,0));
    background-size: 550px 550px;
    opacity: 0.45;
}

.nebula-glow {
    position: absolute;
    width: 60vw;
    height: 60vw;
    border-radius: 50%;
    filter: blur(150px);
    opacity: 0.15;
    pointer-events: none;
    mix-blend-mode: screen;
    animation: nebula-drift 40s infinite alternate ease-in-out;
}

.glowing-purple {
    background: radial-gradient(circle, rgba(162, 0, 255, 0.4) 0%, transparent 70%);
    top: -10%;
    left: -10%;
}

.glowing-blue {
    background: radial-gradient(circle, rgba(0, 110, 255, 0.4) 0%, transparent 70%);
    bottom: -10%;
    right: -10%;
    animation-delay: -20s;
}

@keyframes nebula-drift {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(10vw, 5vh) scale(1.2); }
}

.coordinate-grid {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 240, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 240, 255, 0.02) 1px, transparent 1px);
    background-size: 40px 40px;
    background-position: center;
}

/* Layout Wrapper */
.game-wrapper {
    width: 100%;
    max-width: 1400px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    z-index: 2;
}

/* Header */
.game-header {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    padding: 12px 24px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4), var(--shadow-inset);
    backdrop-filter: blur(16px);
}

.back-link {
    justify-self: start;
}

.btn-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-dim);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 6px 12px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.btn-back:hover {
    color: var(--neon-cyan);
    border-color: rgba(0, 240, 255, 0.3);
    background: rgba(0, 240, 255, 0.05);
    box-shadow: var(--glow-cyan);
}

.game-title-group {
    text-align: center;
}

.cosmic-title {
    font-family: var(--font-hud);
    font-size: 26px;
    font-weight: 900;
    letter-spacing: 2px;
    background: linear-gradient(135deg, #ffffff 30%, #a5a2bb 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.sub-title {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--neon-cyan);
    display: block;
    margin-top: 2px;
    font-weight: 600;
}

.cosmic-badge {
    justify-self: end;
    background: rgba(0, 240, 255, 0.08);
    border: 1px solid rgba(0, 240, 255, 0.25);
    border-radius: 20px;
    padding: 4px 12px;
    box-shadow: var(--glow-cyan);
}

.badge-text {
    font-family: var(--font-hud);
    font-size: 12px;
    font-weight: 800;
    color: var(--neon-cyan);
    letter-spacing: 1px;
}

/* Three-Panel Layout */
.game-layout {
    display: grid;
    grid-template-columns: 300px 1fr 300px;
    gap: 20px;
    align-items: start;
}

/* Cosmic Cards */
.cosmic-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 20px;
    backdrop-filter: blur(16px);
    box-shadow: 0 10px 40px rgba(0,0,0,0.5), var(--shadow-inset);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.cosmic-card:hover {
    border-color: rgba(0, 240, 255, 0.3);
}

.card-title {
    font-family: var(--font-hud);
    font-size: 15px;
    font-weight: 800;
    letter-spacing: 1.5px;
    color: var(--text-white);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding-bottom: 10px;
    margin-bottom: 15px;
    text-transform: uppercase;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Stat Box Configurations */
.stats-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
    margin-bottom: 15px;
}

.stat-box {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.stat-title {
    font-size: 11px;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-number {
    font-family: var(--font-hud);
    font-size: 24px;
    font-weight: 800;
}

.color-neon-cyan {
    color: var(--neon-cyan);
    text-shadow: var(--glow-cyan);
}

.color-neon-magenta {
    color: var(--neon-magenta);
    text-shadow: var(--glow-magenta);
}

.color-neon-gold {
    color: var(--neon-gold);
    text-shadow: var(--glow-gold);
}

.stat-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: var(--text-dim);
    margin-top: 10px;
    margin-bottom: 6px;
}

.stat-value {
    font-family: var(--font-hud);
    font-weight: 600;
    color: var(--text-white);
}

/* Progress bar for length */
.progress-bar {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 15px;
}

.progress-fill {
    height: 100%;
    width: 0%;
    border-radius: 3px;
    transition: width 0.3s ease;
}

.color-bg-cyan {
    background: var(--neon-cyan);
    box-shadow: var(--glow-cyan);
}

.combo-container {
    background: rgba(255, 215, 0, 0.05);
    border: 1px dashed rgba(255, 215, 0, 0.2);
    border-radius: 10px;
    padding: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.combo-label {
    font-size: 12px;
    color: var(--text-dim);
}

.combo-value {
    font-family: var(--font-hud);
    font-size: 18px;
    font-weight: 900;
}

/* Controls and Inputs */
.control-row {
    margin-bottom: 18px;
}

.control-row label {
    display: block;
    font-size: 12px;
    color: var(--text-dim);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.custom-select {
    width: 100%;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-white);
    padding: 10px 14px;
    border-radius: 10px;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.custom-select:hover {
    border-color: var(--neon-cyan);
    background: rgba(0, 240, 255, 0.02);
}

.toggle-container {
    display: inline-block;
    position: relative;
    width: 44px;
    height: 22px;
}

.toggle-container input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 34px;
    transition: 0.3s;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 14px;
    width: 14px;
    left: 3px;
    bottom: 3px;
    background-color: var(--text-dim);
    border-radius: 50%;
    transition: 0.3s;
}

.toggle-container input:checked + .toggle-slider {
    background-color: rgba(0, 240, 255, 0.15);
    border-color: var(--neon-cyan);
}

.toggle-container input:checked + .toggle-slider:before {
    transform: translateX(22px);
    background-color: var(--neon-cyan);
    box-shadow: var(--glow-cyan);
}

.hud-action-info {
    font-size: 11px;
    color: var(--text-dim);
    line-height: 1.5;
    background: rgba(255, 255, 255, 0.01);
    border: 1px solid rgba(255, 255, 255, 0.04);
    border-radius: 8px;
    padding: 8px 10px;
    margin-top: 10px;
}

/* Center Panel: Canvas Container */
.panel-center {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.canvas-container {
    position: relative;
    width: 600px;
    height: 600px;
    background: #020104;
    border: 2px solid rgba(0, 240, 255, 0.35);
    border-radius: 20px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.8), 0 0 20px rgba(0, 240, 255, 0.1);
    overflow: hidden;
    transition: border-color 0.4s ease, box-shadow 0.4s ease;
}

.canvas-container:hover {
    border-color: rgba(0, 240, 255, 0.6);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.8), 0 0 30px rgba(0, 240, 255, 0.15);
}

#game-canvas {
    display: block;
    width: 100%;
    height: 100%;
    touch-action: none;
}

/* Full Screen Overlays */
.screen-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(5, 3, 12, 0.85);
    backdrop-filter: blur(12px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10;
    padding: 30px;
    transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.screen-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.overlay-content {
    max-width: 480px;
    text-align: center;
    animation: zoom-in 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes zoom-in {
    from { transform: scale(0.9); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.overlay-icon {
    font-size: 56px;
    margin-bottom: 12px;
    filter: drop-shadow(0 0 10px rgba(255,255,255,0.2));
}

.overlay-title {
    font-family: var(--font-hud);
    font-size: 32px;
    font-weight: 900;
    margin-bottom: 15px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.overlay-desc {
    font-size: 13px;
    line-height: 1.6;
    color: var(--text-dim);
    margin-bottom: 25px;
}

.overlay-desc strong {
    color: var(--text-white);
}

.btn-action {
    background: transparent;
    border: 1px solid var(--neon-cyan);
    color: var(--text-white);
    font-family: var(--font-hud);
    font-size: 14px;
    font-weight: 800;
    letter-spacing: 1.5px;
    padding: 12px 30px;
    border-radius: 30px;
    cursor: pointer;
    text-transform: uppercase;
    box-shadow: var(--glow-cyan);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.btn-action:hover {
    background: rgba(0, 240, 255, 0.1);
    box-shadow: 0 0 25px rgba(0, 240, 255, 0.7);
    transform: translateY(-2px);
}

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

/* Score Summary inside gameover */
.score-summary {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 15px;
    margin-bottom: 25px;
}

.score-summary p {
    font-size: 13px;
    color: var(--text-dim);
    margin-bottom: 6px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.score-summary p:last-child {
    margin-bottom: 0;
}

.score-summary span {
    font-family: var(--font-hud);
    font-size: 18px;
    font-weight: 800;
}

/* Astrological Codex Styles */
.codex-card {
    max-height: 560px;
    overflow-y: auto;
}

.codex-card::-webkit-scrollbar {
    width: 6px;
}

.codex-card::-webkit-scrollbar-track {
    background: transparent;
}

.codex-card::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.08);
    border-radius: 3px;
}

.codex-card::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 240, 255, 0.2);
}

.codex-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.codex-item {
    background: rgba(255, 255, 255, 0.01);
    border: 1px solid rgba(255, 255, 255, 0.03);
    border-radius: 10px;
    padding: 10px 12px;
    transition: all 0.3s ease;
}

.codex-item:hover {
    background: rgba(255, 255, 255, 0.02);
    border-color: rgba(255, 255, 255, 0.08);
}

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

.codex-icon {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
}

.color-nucleus {
    background: #00f0ff;
    box-shadow: 0 0 6px #00f0ff;
}

.color-dust {
    background: #ffcc00;
    box-shadow: 0 0 6px #ffcc00;
}

.color-supernova {
    background: #ff00ff;
    box-shadow: 0 0 8px #ff00ff;
    animation: flash 1s infinite alternate;
}

@keyframes flash {
    0% { opacity: 0.5; }
    100% { opacity: 1; }
}

.color-blackhole {
    background: #05020c;
    border: 2px solid #ff3300;
    box-shadow: 0 0 8px #ff3300;
}

.color-boundary {
    background: transparent;
    border: 1.5px dashed #00f0ff;
}

.codex-name {
    font-size: 12px;
    font-weight: 700;
    color: var(--text-white);
}

.codex-desc {
    font-size: 11px;
    color: var(--text-dim);
    line-height: 1.4;
}

/* Mobile Controls Area */
.mobile-controls {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    margin-top: 10px;
}

.touch-control-hint {
    font-size: 11px;
    color: var(--text-dim);
    opacity: 0.8;
}

.mobile-hud-actions {
    display: flex;
    justify-content: space-around;
    align-items: center;
    width: 100%;
    max-width: 500px;
    padding: 0 20px;
}

/* Visual joystick container */
.virtual-joystick-pad {
    width: 100px;
    height: 100px;
    background: rgba(255, 255, 255, 0.02);
    border: 2px solid rgba(0, 240, 255, 0.2);
    border-radius: 50%;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.5);
    touch-action: none;
}

.joystick-knob {
    width: 40px;
    height: 40px;
    background: rgba(0, 240, 255, 0.15);
    border: 2px solid var(--neon-cyan);
    border-radius: 50%;
    position: absolute;
    cursor: pointer;
    box-shadow: var(--glow-cyan);
    transition: transform 0.05s ease;
    touch-action: none;
}

.boost-btn {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    background: rgba(255, 0, 127, 0.05);
    border: 2px solid rgba(255, 0, 127, 0.3);
    color: var(--text-white);
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(255, 0, 127, 0.1);
    display: flex;
    justify-content: center;
    align-items: center;
    touch-action: none;
    transition: all 0.2s ease;
}

.boost-btn:active, .boost-btn.active {
    background: rgba(255, 0, 127, 0.2);
    border-color: var(--neon-magenta);
    box-shadow: var(--glow-magenta), 0 0 20px rgba(255, 0, 127, 0.4);
    transform: scale(0.95);
}

.boost-btn-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
}

.boost-icon {
    font-size: 20px;
    color: var(--neon-magenta);
    text-shadow: var(--glow-magenta);
}

.boost-btn-text, .boost-text {
    font-family: var(--font-hud);
    font-size: 9px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-white);
}

/* Responsive Media Queries */
@media (max-width: 1200px) {
    .game-layout {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .panel-left, .panel-right {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 20px;
        width: 100%;
    }
    
    .panel-right {
        order: 3;
    }
    
    .panel-center {
        order: 1;
        width: 100%;
    }
    
    .panel-left {
        order: 2;
    }
    
    .canvas-container {
        width: 100%;
        max-width: 600px;
        height: auto;
        aspect-ratio: 1 / 1;
    }
    
    .codex-card {
        max-height: none;
        grid-column: span 2;
    }
}

@media (max-width: 680px) {
    .game-wrapper {
        padding: 10px;
    }
    
    .game-header {
        grid-template-columns: auto 1fr;
        padding: 10px 15px;
    }
    
    .cosmic-badge {
        display: none;
    }
    
    .panel-left, .panel-right {
        grid-template-columns: 1fr;
    }
    
    .codex-card {
        grid-column: span 1;
    }
    
    .cosmic-title {
        font-size: 20px;
    }
    
    .canvas-container {
        border-radius: 12px;
    }
    
    .screen-overlay {
        padding: 15px;
    }
    
    .overlay-title {
        font-size: 24px;
    }
    
    .overlay-icon {
        font-size: 40px;
    }
    
    /* Show mobile steering */
    .mobile-controls {
        display: flex;
    }
}