/* --- Design System & CSS Variables --- */
:root {
    --bg-color: #f7f7f7;
    --text-color: #252525;
    --accent-color: #4caf50; /* Hari Raya green for subtle details */
    --accent-hover: #388e3c;
    --font-retro: 'Press Start 2P', monospace;
    --font-ui: 'Outfit', sans-serif;
    --shadow-color: rgba(0, 0, 0, 0.08);
    --border-color: #252525;
    
    --transition-fast: 0.15s ease;
    --transition-medium: 0.25s ease;
}

/* Dark Mode Variables */
[data-theme="dark"] {
    --bg-color: #161616;
    --text-color: #e0e0e0;
    --accent-color: #69f0ae;
    --accent-hover: #00e676;
    --shadow-color: rgba(0, 0, 0, 0.4);
    --border-color: #e0e0e0;
}

/* --- Base Styles & Fullscreen Reset --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
}

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-ui);
    transition: background-color var(--transition-medium), color var(--transition-medium);
}

#app-container {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
}

/* --- Game Viewport covers full viewport --- */
#game-viewport {
    position: relative;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
}

#game-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: block;
    image-rendering: pixelated;
    image-rendering: crisp-edges;
    z-index: 1;
}

/* --- Floating HUD Header --- */
.game-header {
    position: absolute;
    top: 24px;
    left: 32px;
    right: 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 5;
    pointer-events: none; /* Let clicks pass through empty spaces */
}

.logo-text {
    font-family: var(--font-retro);
    font-size: 0.95rem;
    letter-spacing: 1.5px;
    pointer-events: auto;
    text-shadow: 2px 2px var(--bg-color);
}

.accent-text {
    color: var(--accent-color);
}

.hud-right {
    display: flex;
    align-items: center;
    gap: 20px;
    pointer-events: auto;
}

.hud-score-board {
    font-family: var(--font-retro);
    font-size: 0.85rem;
    color: var(--text-color);
    letter-spacing: 1.5px;
    display: flex;
    align-items: center;
    gap: 12px;
    background-color: rgba(247, 247, 247, 0.9);
    border: 2px solid var(--border-color);
    padding: 8px 16px;
    border-radius: 8px;
    box-shadow: 4px 4px 0 var(--border-color);
    transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

[data-theme="dark"] .hud-score-board {
    background-color: rgba(22, 22, 22, 0.9);
}

.hud-score-board.flash-active {
    background-color: var(--text-color) !important;
    color: var(--bg-color) !important;
    border-color: var(--text-color) !important;
}

.hud-score-label {
    opacity: 0.5;
    margin-right: 2px;
}

.hud-score-val {
    margin-right: 8px;
}

.hud-score-val:last-child {
    margin-right: 0;
}

.control-buttons {
    display: flex;
    gap: 12px;
}

.icon-btn {
    background-color: rgba(247, 247, 247, 0.8);
    border: 2px solid var(--border-color);
    color: var(--text-color);
    cursor: pointer;
    width: 42px;
    height: 42px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 8px;
    box-shadow: 3px 3px 0 var(--border-color);
    transition: background-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

[data-theme="dark"] .icon-btn {
    background-color: rgba(22, 22, 22, 0.8);
}

.icon-btn:hover {
    background-color: var(--text-color);
    color: var(--bg-color);
    transform: translate(-1px, -1px);
    box-shadow: 4px 4px 0 var(--border-color);
}

.icon-btn:active {
    transform: translate(2px, 2px);
    box-shadow: 1px 1px 0 var(--border-color);
}

.hidden {
    display: none !important;
}

/* --- Floating HUD Footer --- */
.game-footer {
    position: absolute;
    bottom: 20px;
    left: 32px;
    right: 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 5;
    pointer-events: none;
    font-size: 0.8rem;
}

.instructions {
    pointer-events: auto;
    background-color: rgba(247, 247, 247, 0.9);
    border: 2px solid var(--border-color);
    padding: 8px 16px;
    border-radius: 8px;
    box-shadow: 4px 4px 0 var(--border-color);
    color: var(--text-color);
    transition: background-color var(--transition-medium), border-color var(--transition-medium);
}

[data-theme="dark"] .instructions {
    background-color: rgba(22, 22, 22, 0.9);
}

.instructions p span {
    font-family: var(--font-retro);
    font-size: 0.6rem;
    background-color: var(--bg-color);
    padding: 4px 8px;
    border-radius: 4px;
    border: 2px solid var(--border-color);
    box-shadow: 0 2px 0 var(--border-color);
    display: inline-block;
    margin: 0 2px;
    color: var(--text-color);
    transition: background-color var(--transition-medium), border-color var(--transition-medium);
}

.copyright {
    font-size: 0.75rem;
    font-weight: 600;
    pointer-events: auto;
    background-color: rgba(247, 247, 247, 0.9);
    border: 2px solid var(--border-color);
    padding: 8px 16px;
    border-radius: 8px;
    box-shadow: 4px 4px 0 var(--border-color);
    color: var(--text-color);
    transition: background-color var(--transition-medium), border-color var(--transition-medium);
}

[data-theme="dark"] .copyright {
    background-color: rgba(22, 22, 22, 0.9);
}

/* --- Centered Dialog Overlay Layers --- */
.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(247, 247, 247, 0.55);
    backdrop-filter: blur(3px);
    -webkit-backdrop-filter: blur(3px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10;
    transition: background-color var(--transition-medium);
}

[data-theme="dark"] .overlay {
    background-color: rgba(22, 22, 22, 0.55);
}

.overlay-content {
    background-color: var(--bg-color);
    border: 4px solid var(--border-color);
    border-radius: 8px;
    padding: 35px 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 520px;
    width: 90%;
    box-shadow: 8px 8px 0 var(--border-color);
    animation: zoomIn 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.15);
    text-align: center;
    transition: background-color var(--transition-medium), border-color var(--transition-medium);
}

.game-title {
    font-family: var(--font-retro);
    font-size: 2rem;
    margin-bottom: 8px;
    letter-spacing: 2px;
}

.game-subtitle {
    font-family: var(--font-ui);
    font-size: 1.15rem;
    font-weight: 600;
    letter-spacing: 1px;
    color: var(--accent-color);
    margin-bottom: 24px;
}

.start-prompt {
    font-family: var(--font-retro);
    font-size: 0.75rem;
    letter-spacing: 1px;
    opacity: 0.8;
}

.gameover-title {
    font-family: var(--font-retro);
    font-size: 1.8rem;
    color: var(--text-color);
    margin-bottom: 12px;
    letter-spacing: 2px;
}

.gameover-msg {
    font-family: var(--font-ui);
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--accent-color);
    margin-bottom: 24px;
    padding: 0 10px;
    line-height: 1.4;
}

/* Score Summary inside popup */
.score-summary {
    display: flex;
    gap: 32px;
    margin-bottom: 28px;
}

.score-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: rgba(0, 0, 0, 0.03);
    border: 2px solid var(--border-color);
    padding: 10px 20px;
    border-radius: 8px;
    box-shadow: 4px 4px 0 var(--border-color);
    transition: background-color var(--transition-medium), border-color var(--transition-medium);
}

[data-theme="dark"] .score-box {
    background-color: rgba(255, 255, 255, 0.03);
}

.score-label {
    font-family: var(--font-ui);
    font-size: 0.8rem;
    font-weight: 600;
    opacity: 0.6;
    letter-spacing: 1px;
    margin-bottom: 6px;
}

.score-val {
    font-family: var(--font-retro);
    font-size: 1.15rem;
}

/* Retro Buttons */
.btn-retro {
    background-color: var(--accent-color);
    color: #1a1a1a;
    font-family: var(--font-retro);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 14px 28px;
    border: 3px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    box-shadow: 4px 4px 0 var(--border-color);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
}

.btn-retro:hover {
    background-color: var(--accent-hover);
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0 var(--border-color);
}

.btn-retro:active {
    transform: translate(2px, 2px);
    box-shadow: 2px 2px 0 var(--border-color);
}

/* --- Floating Mobile Actions Overlay --- */
#mobile-controls {
    position: absolute;
    bottom: 105px;
    left: 32px;
    right: 32px;
    display: flex;
    justify-content: space-between;
    z-index: 5;
    pointer-events: none;
}

.touch-pad {
    width: 80px;
    height: 80px;
    border-radius: 12px;
    border: 3px solid var(--border-color);
    background-color: rgba(247, 247, 247, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    pointer-events: auto;
    font-family: var(--font-retro);
    font-size: 0.65rem;
    font-weight: bold;
    color: var(--text-color);
    box-shadow: 4px 4px 0 var(--border-color);
    transition: background-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

[data-theme="dark"] .touch-pad {
    background-color: rgba(22, 22, 22, 0.9);
}

.touch-pad:active,
.touch-pad.active {
    background-color: var(--text-color);
    color: var(--bg-color);
    transform: translate(3px, 3px);
    box-shadow: 1px 1px 0 var(--border-color);
}

/* --- Animations --- */
@keyframes zoomIn {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

.blink {
    animation: blinker 1.4s linear infinite;
}

@keyframes blinker {
    50% { opacity: 0; }
}

.pixel-cow-logo {
    width: 120px;
    height: 77px;
    background-image: url('images/cow.png?v=2');
    background-size: 179.23% 185.84%;
    background-position: 54.2% 58.56%;
    background-repeat: no-repeat;
    image-rendering: pixelated;
    image-rendering: crisp-edges;
    margin-bottom: 20px;
}

/* --- Responsive Adaptability --- */
.mobile-only {
    display: none !important;
}

@media (max-width: 768px) {
    .game-header {
        flex-direction: column;
        gap: 12px;
        align-items: center;
        top: 16px;
        left: 16px;
        right: 16px;
    }

    .logo-text {
        font-size: 0.85rem;
        text-align: center;
    }

    .hud-right {
        width: 100%;
        justify-content: center;
        gap: 12px;
    }

    .hud-score-board {
        font-size: 0.75rem;
        padding: 6px 12px;
        box-shadow: 3px 3px 0 var(--border-color);
    }

    .icon-btn {
        width: 36px;
        height: 36px;
        box-shadow: 2px 2px 0 var(--border-color);
    }

    .icon-btn:hover {
        transform: none;
        box-shadow: 2px 2px 0 var(--border-color);
    }

    .icon-btn:active {
        transform: translate(1px, 1px);
        box-shadow: 1px 1px 0 var(--border-color);
    }
    
    .game-title {
        font-size: 1.5rem;
    }
    
    .game-subtitle {
        font-size: 0.95rem;
        margin-bottom: 20px;
    }
    
    .start-prompt {
        font-size: 0.65rem;
    }

    .gameover-title {
        font-size: 1.4rem;
    }

    .gameover-msg {
        font-size: 1rem;
        margin-bottom: 16px;
    }

    .btn-retro {
        padding: 12px 24px;
        font-size: 0.65rem;
        box-shadow: 3px 3px 0 var(--border-color);
    }

    .btn-retro:hover {
        transform: none;
        box-shadow: 3px 3px 0 var(--border-color);
    }

    .btn-retro:active {
        transform: translate(1px, 1px);
        box-shadow: 2px 2px 0 var(--border-color);
    }

    .score-summary {
        gap: 20px;
        margin-bottom: 20px;
    }

    .score-box {
        padding: 8px 16px;
        box-shadow: 3px 3px 0 var(--border-color);
    }

    .score-val {
        font-size: 1rem;
    }

    .game-footer {
        flex-direction: column;
        gap: 10px;
        bottom: 15px;
        left: 16px;
        right: 16px;
        align-items: center;
    }

    .instructions, .copyright {
        text-align: center;
        padding: 8px 16px;
        font-size: 0.75rem;
        width: auto;
        max-width: 90%;
        box-shadow: 3px 3px 0 var(--border-color);
    }
    
    .copyright {
        font-size: 0.7rem;
    }
}

@media (max-width: 1024px), (pointer: coarse) {
    .mobile-only {
        display: flex !important;
    }
    
    .desktop-only {
        display: none !important;
    }
}

/* Handle notches and safe areas on modern mobile viewports */
@supports (padding: env(safe-area-inset-top)) {
    .game-header {
        top: calc(20px + env(safe-area-inset-top));
        left: calc(20px + env(safe-area-inset-left));
        right: calc(20px + env(safe-area-inset-right));
    }
    .game-footer {
        bottom: calc(20px + env(safe-area-inset-bottom));
        left: calc(20px + env(safe-area-inset-left));
        right: calc(20px + env(safe-area-inset-right));
    }
    #mobile-controls {
        bottom: calc(110px + env(safe-area-inset-bottom));
        left: calc(32px + env(safe-area-inset-left));
        right: calc(32px + env(safe-area-inset-right));
    }
}

/* --- Ending / Romantic Overlay Styles --- */
.overlay-romantic {
    max-width: 520px;
    width: 90%;
    text-align: center;
    transition: background-color var(--transition-medium), border-color var(--transition-medium);
}

[data-theme="light"] .overlay-romantic {
    box-shadow: 8px 8px 0 #e91e63 !important;
    border-color: #e91e63 !important;
}

[data-theme="dark"] .overlay-romantic {
    box-shadow: 8px 8px 0 #ff4081 !important;
    border-color: #ff4081 !important;
}

.pixel-hearts-logo {
    font-size: 3.5rem;
    margin-bottom: 12px;
    display: inline-block;
    animation: heartPulse 0.8s ease infinite alternate;
}

@keyframes heartPulse {
    0% { transform: scale(1); }
    100% { transform: scale(1.15); }
}

.text-romantic {
    color: #e91e63 !important;
}

[data-theme="dark"] .text-romantic {
    color: #ff4081 !important;
}

.subtitle-romantic {
    color: var(--text-color) !important;
    font-size: 1.1rem;
    margin-bottom: 12px;
}

.ending-msg {
    font-family: var(--font-ui);
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 8px;
    line-height: 1.4;
}

.ending-submsg {
    font-family: var(--font-retro);
    font-size: 0.85rem;
    color: var(--accent-color) !important;
    margin-bottom: 24px;
}

.btn-romantic {
    background-color: #e91e63 !important;
    color: #ffffff !important;
    border-color: var(--border-color) !important;
    box-shadow: 4px 4px 0 var(--border-color) !important;
}

[data-theme="dark"] .btn-romantic {
    background-color: #ff4081 !important;
    color: #ffffff !important;
}

.btn-romantic:hover {
    background-color: #d81b60 !important;
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0 var(--border-color) !important;
}

[data-theme="dark"] .btn-romantic:hover {
    background-color: #f50057 !important;
}

.btn-romantic:active {
    transform: translate(2px, 2px);
    box-shadow: 2px 2px 0 var(--border-color) !important;
}