/* Copyright (C) 2026 Bismaya, All Rights Reserved. */
/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: #0B0C10;
    font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', sans-serif;
    touch-action: none;
    user-select: none;
    -webkit-user-select: none;
}

/* Canvas */
#gameCanvas {
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* UI Overlay */
#ui-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    padding: 20px;
    pointer-events: none;
    z-index: 10;
}

#score {
    font-size: 48px;
    font-weight: 700;
    color: #66FCF1;
    text-shadow: 0 0 20px rgba(102, 252, 241, 0.5);
    text-align: center;
    letter-spacing: 4px;
}

#high-score {
    font-size: 14px;
    color: rgba(197, 198, 199, 0.6);
    text-align: center;
    margin-top: 5px;
    letter-spacing: 2px;
}

#shield-indicator {
    position: absolute;
    top: 115px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 28px;
    animation: shieldPulse 2s ease-in-out infinite;
    text-shadow: 0 0 15px rgba(100, 200, 255, 0.8);
}

#shield-indicator.hidden {
    display: none;
}

#shield-indicator.used {
    animation: shieldBreak 0.5s ease-out forwards;
}

@keyframes shieldPulse {
    0%, 100% { transform: translateX(-50%) scale(1); opacity: 0.8; }
    50% { transform: translateX(-50%) scale(1.1); opacity: 1; }
}

@keyframes shieldBreak {
    0% { transform: translateX(-50%) scale(1); opacity: 1; }
    50% { transform: translateX(-50%) scale(1.5); opacity: 0.5; }
    100% { transform: translateX(-50%) scale(0); opacity: 0; }
}

/* Screen Overlays */
.screen {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: radial-gradient(ellipse at center, rgba(11, 12, 16, 0.9) 0%, rgba(11, 12, 16, 0.98) 100%);
    z-index: 100;
    padding: 20px;
    text-align: center;
}

.screen.hidden {
    display: none;
}

.screen h1 {
    font-size: 64px;
    font-weight: 900;
    color: #66FCF1;
    text-shadow: 
        0 0 10px rgba(102, 252, 241, 0.8),
        0 0 30px rgba(102, 252, 241, 0.5),
        0 0 60px rgba(102, 252, 241, 0.3);
    letter-spacing: 12px;
    margin-bottom: 10px;
    animation: pulse 2s ease-in-out infinite;
}

.screen h2 {
    font-size: 36px;
    font-weight: 700;
    color: #FF6B6B;
    text-shadow: 0 0 20px rgba(255, 107, 107, 0.6);
    letter-spacing: 8px;
    margin-bottom: 30px;
}

.subtitle {
    font-size: 14px;
    color: #C5C6C7;
    letter-spacing: 6px;
    text-transform: uppercase;
    margin-bottom: 50px;
    opacity: 0.7;
}

.instructions {
    font-size: 16px;
    color: #C5C6C7;
    line-height: 2.2;
    margin-bottom: 50px;
}

.instructions .hold {
    color: #66FCF1;
    font-weight: 700;
    text-shadow: 0 0 10px rgba(102, 252, 241, 0.5);
}

.instructions .release {
    color: #FFD93D;
    font-weight: 700;
    text-shadow: 0 0 10px rgba(255, 217, 61, 0.5);
}

.final-score, .best-score {
    font-size: 18px;
    color: #C5C6C7;
    letter-spacing: 3px;
    margin-bottom: 10px;
}

.final-score span {
    color: #66FCF1;
    font-weight: 700;
}

.best-score {
    opacity: 0.6;
    margin-bottom: 40px;
}

.best-score span {
    color: #FFD93D;
}

/* Buttons */
button {
    background: transparent;
    border: 2px solid #66FCF1;
    color: #66FCF1;
    font-size: 18px;
    font-weight: 600;
    padding: 16px 48px;
    letter-spacing: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    border-radius: 4px;
}

button:hover, button:active {
    background: rgba(102, 252, 241, 0.1);
    box-shadow: 
        0 0 20px rgba(102, 252, 241, 0.4),
        inset 0 0 20px rgba(102, 252, 241, 0.1);
}

/* Credits */
.credits {
    margin-top: 40px;
    font-size: 12px;
    color: rgba(197, 198, 199, 0.5);
    letter-spacing: 2px;
}

.credits .author, .modal-credits .author {
    color: #66FCF1;
    font-weight: 600;
}

.modal-credits {
    margin-top: 20px;
    padding-top: 15px;
    border-top: 1px solid rgba(102, 252, 241, 0.15);
    font-size: 11px;
    color: rgba(197, 198, 199, 0.5);
    letter-spacing: 2px;
    text-align: center;
}

/* Animations */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.85;
        transform: scale(1.02);
    }
}

/* Mobile Adjustments */
@media (max-width: 480px) {
    .screen h1 {
        font-size: 48px;
        letter-spacing: 8px;
    }
    
    #score {
        font-size: 36px;
    }
    
    .instructions {
        font-size: 14px;
        padding: 0 20px;
    }
    
    button {
        font-size: 16px;
        padding: 14px 36px;
    }
}

/* Safe area for notched devices */
@supports (padding-top: env(safe-area-inset-top)) {
    #ui-overlay {
        padding-top: calc(20px + env(safe-area-inset-top));
    }
}

/* Info Button */
#info-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    padding: 8px;
    border-radius: 50%;
    border: 2px solid rgba(102, 252, 241, 0.5);
    background: rgba(11, 12, 16, 0.8);
    color: #66FCF1;
    cursor: pointer;
    pointer-events: auto;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

#info-btn:hover, #info-btn:active {
    background: rgba(102, 252, 241, 0.2);
    border-color: #66FCF1;
    box-shadow: 0 0 15px rgba(102, 252, 241, 0.4);
}

#info-btn svg {
    width: 20px;
    height: 20px;
}

/* Help Modal */
.modal {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(11, 12, 16, 0.95);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 200;
    padding: 20px;
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: linear-gradient(135deg, rgba(30, 32, 40, 0.95), rgba(11, 12, 16, 0.98));
    border: 1px solid rgba(102, 252, 241, 0.3);
    border-radius: 12px;
    padding: 30px;
    max-width: 340px;
    width: 100%;
    position: relative;
    box-shadow: 0 0 40px rgba(102, 252, 241, 0.1);
}

.modal-content h3 {
    color: #66FCF1;
    font-size: 20px;
    letter-spacing: 4px;
    text-align: center;
    margin-bottom: 25px;
    text-shadow: 0 0 10px rgba(102, 252, 241, 0.5);
}

#close-modal {
    position: absolute;
    top: 10px;
    right: 15px;
    background: none;
    border: none;
    color: #C5C6C7;
    font-size: 28px;
    cursor: pointer;
    padding: 5px 10px;
    line-height: 1;
    transition: color 0.2s;
}

#close-modal:hover {
    color: #66FCF1;
    background: none;
    box-shadow: none;
}

.control-section {
    margin-bottom: 20px;
}

.control-item {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 8px;
}

.control-item .key {
    background: linear-gradient(135deg, #66FCF1, #45A29E);
    color: #0B0C10;
    padding: 6px 14px;
    border-radius: 6px;
    font-weight: 700;
    font-size: 12px;
    letter-spacing: 2px;
    min-width: 70px;
    text-align: center;
}

.control-item .desc {
    color: #C5C6C7;
    font-size: 14px;
}

.control-explain {
    color: rgba(197, 198, 199, 0.6);
    font-size: 12px;
    padding-left: 85px;
    font-style: italic;
}

.tips {
    margin-top: 25px;
    padding-top: 20px;
    border-top: 1px solid rgba(102, 252, 241, 0.2);
}

.tips h4 {
    color: #FFD93D;
    font-size: 14px;
    letter-spacing: 3px;
    margin-bottom: 12px;
}

.tips ul {
    list-style: none;
    padding: 0;
}

.tips li {
    color: #C5C6C7;
    font-size: 13px;
    padding: 6px 0;
    padding-left: 20px;
    position: relative;
}

.tips li::before {
    content: '›';
    position: absolute;
    left: 0;
    color: #66FCF1;
    font-weight: bold;
}

/* Features list */
.features {
    margin-top: 20px;
    padding-top: 15px;
    border-top: 1px solid rgba(102, 252, 241, 0.2);
}

.features h4 {
    color: #66FCF1;
    font-size: 14px;
    letter-spacing: 3px;
    margin-bottom: 12px;
}

.features ul {
    list-style: none;
    padding: 0;
}

.features li {
    color: #C5C6C7;
    font-size: 13px;
    padding: 8px 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.features li .feature-icon {
    font-size: 16px;
    width: 24px;
    text-align: center;
}

.features li strong {
    color: #66FCF1;
}

/* Hold indicator */
#hold-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    padding: 10px 25px;
    background: rgba(102, 252, 241, 0.15);
    border: 1px solid rgba(102, 252, 241, 0.4);
    border-radius: 25px;
    color: #66FCF1;
    font-size: 14px;
    letter-spacing: 3px;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.2s;
}

#hold-indicator.visible {
    opacity: 1;
}

#hold-indicator.holding {
    background: rgba(255, 217, 61, 0.2);
    border-color: rgba(255, 217, 61, 0.5);
    color: #FFD93D;
}

@supports (padding-bottom: env(safe-area-inset-bottom)) {
    #hold-indicator {
        bottom: calc(30px + env(safe-area-inset-bottom));
    }
}

/* Mobile responsiveness for Modal */
@media (max-width: 600px) {
    .modal {
        padding: 10px;
    }
    
    .modal-content {
        padding: 15px 20px;
        max-width: 95vw;
        max-height: 85vh;
        overflow-y: auto;
    }
    
    .modal-content h3 {
        font-size: 18px;
        margin-bottom: 15px;
    }
    
    #close-modal {
        top: 5px;
        right: 10px;
        font-size: 24px;
    }
    
    .control-item {
        margin-bottom: 6px;
    }
    
    .control-item .key {
        padding: 4px 10px;
        font-size: 11px;
        min-width: 50px;
    }
    
    .control-item span {
        font-size: 13px;
    }
    
    .feature-item h4 {
        font-size: 14px;
        margin-bottom: 2px;
    }
    
    .feature-item p {
        font-size: 12px;
    }
}