@import url('https://fonts.googleapis.com/css2?family=Press+Start+2P&display=swap');

:root {
    --bg-color: #0f0f1a;
    --text-color: #fff;
    --accent-color: #4a90e2;
    --pixel-border: 4px solid #fff;
    --ui-bg: rgba(0, 0, 0, 0.85);
}

* {
    box-sizing: border-box;
    user-select: none;
    -webkit-user-select: none;
}

body {
    margin: 0;
    padding: 0;
    background-color: #000;
    color: var(--text-color);
    font-family: 'Courier New', Courier, monospace; /* Fallback */
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

/* Pixel Art Font for headers/buttons if available, else monospace */
h1, h2, h3, .pixel-btn {
    font-family: 'Press Start 2P', cursive, monospace;
    text-transform: uppercase;
}

#game-container {
    position: relative;
    width: 100vw;
    height: 100vh;
    /* Pixel Art Space Background */
    background-color: #0a0a12;
    background-image: 
        radial-gradient(white, rgba(255,255,255,.2) 2px, transparent 3px),
        radial-gradient(white, rgba(255,255,255,.15) 1px, transparent 2px),
        radial-gradient(white, rgba(255,255,255,.1) 2px, transparent 3px);
    background-size: 550px 550px, 350px 350px, 250px 250px;
    background-position: 0 0, 40px 60px, 130px 270px;
    box-shadow: none;
    overflow: hidden;
    image-rendering: pixelated;
}

/* Add stars via pseudo-element to keep them separate from gradient */
#game-container::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* Animated Pixel Stars */
    background-image: 
        radial-gradient(2px 2px at 20px 30px, #eee, rgba(0,0,0,0)),
        radial-gradient(2px 2px at 40px 70px, #fff, rgba(0,0,0,0)),
        radial-gradient(2px 2px at 50px 160px, #ddd, rgba(0,0,0,0)),
        radial-gradient(2px 2px at 90px 40px, #fff, rgba(0,0,0,0)),
        radial-gradient(2px 2px at 130px 80px, #fff, rgba(0,0,0,0)),
        radial-gradient(2px 2px at 160px 120px, #ddd, rgba(0,0,0,0));
    background-repeat: repeat;
    background-size: 200px 200px;
    opacity: 0.8;
    pointer-events: none;
    animation: twinkle 4s infinite;
}

@keyframes twinkle {
    0% { opacity: 0.5; transform: translateY(0); }
    50% { opacity: 0.8; transform: translateY(-2px); }
    100% { opacity: 0.5; transform: translateY(0); }
}

canvas {
    display: block;
    width: 100%;
    height: 100%;
    image-rendering: pixelated;
    position: relative;
    z-index: 1;
}

/* Screens */
.screen {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column; /* Default to column for centering content vertically */
    justify-content: center;
    align-items: center;
    background: transparent; /* Let canvas/body bg show through */
    z-index: 10;
    transition: opacity 0.3s;
}

#login-screen {
    background: rgba(0, 0, 0, 0.1); /* Very transparent to show the bright background */
}

#battle-screen {
    background: rgba(0, 0, 0, 0.8); /* Darker for battle */
}

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
}

.hidden {
    display: none !important;
}

/* Pixel Box UI */
.pixel-box {
    background: var(--ui-bg);
    border: var(--pixel-border);
    padding: 20px;
    text-align: center;
    max-width: 80%;
    box-shadow: 5px 5px 0px #444;
}

.login-box {
    width: 400px;
}

input[type="text"] {
    display: block;
    width: 100%;
    padding: 10px;
    margin: 15px 0;
    background: #222;
    border: 2px solid #fff;
    color: #fff;
    font-family: inherit;
    font-size: 1.2rem;
    text-align: center;
}

.pixel-btn {
    background: #333;
    color: #fff;
    border: 2px solid #fff;
    padding: 15px 30px; /* Larger buttons */
    cursor: pointer;
    font-size: 1.2rem; /* Larger font */
    margin: 5px;
    transition: transform 0.1s;
}

.pixel-btn:active {
    transform: scale(0.95);
}

.pixel-btn.secondary {
    background: #555;
    font-size: 1rem;
}

/* HUD */
#hud {
    position: absolute;
    top: 10px;
    left: 10px;
    right: 10px;
    z-index: 5;
}

.status-bar {
    display: flex;
    justify-content: space-between;
    background: rgba(0, 0, 0, 0.6);
    padding: 10px 15px;
    border: 2px solid #fff;
    font-size: 1.2rem; /* Larger HUD text */
}

.hp-bar {
    width: 250px;
    height: 25px;
    background: #333;
    border: 1px solid #fff;
    display: inline-block;
    vertical-align: middle;
    margin: 0 10px;
}

#player-hp-fill {
    height: 100%;
    background: #e74c3c;
    transition: width 0.3s;
}

/* Dialogue */
#dialogue-box {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 95vw;
    height: auto;
    min-height: auto;
    max-height: 50vh;
    background: var(--ui-bg);
    border: var(--pixel-border);
    display: flex;
    flex-direction: row;
    z-index: 20;
    overflow: hidden;
}

.portrait-container {
    position: relative;
    width: 120px;
    min-width: 120px;
    max-width: 25%;
    border-right: 2px solid #fff;
    background: #222;
    flex-shrink: 0;
}

.pixel-portrait {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
}

.text-container {
    flex: 1;
    padding: 15px;
    position: relative;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    max-height: 100%;
}

#speaker-name {
    margin: 0 0 8px 0;
    color: #f1c40f;
    font-size: clamp(0.9rem, 2vw, 1.5rem);
    font-weight: bold;
}

#dialogue-text {
    margin: 0 0 10px 0;
    line-height: 1.5;
    font-size: clamp(0.85rem, 1.8vw, 1.3rem);
    flex-grow: 1;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

#next-dialogue-btn {
    align-self: flex-end;
    margin-top: 10px;
    font-size: clamp(0.8rem, 1.5vw, 1.2rem);
    padding: 8px 12px;
}

#dialogue-options {
    margin-top: 10px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    width: 100%;
}

#dialogue-options .pixel-btn {
    width: 100%;
    text-align: left;
    font-size: clamp(0.75rem, 1.5vw, 1rem);
    height: 100%;
    padding: 8px;
}

/* 小屏幕對話框優化 */
@media (max-width: 480px) {
    #dialogue-box {
        width: 95%;
        bottom: 10px;
        max-height: 45vh;
        flex-direction: column;
    }
    
    .portrait-container {
        width: 100%;
        min-width: 100%;
        height: 80px;
        border-right: none;
        border-bottom: 2px solid #fff;
    }
    
    .text-container {
        padding: 12px;
    }
    
    #speaker-name {
        font-size: 1rem;
        margin: 0 0 5px 0;
    }
    
    #dialogue-text {
        font-size: 0.9rem;
        margin: 0 0 8px 0;
    }
    
    #next-dialogue-btn {
        font-size: 0.85rem;
    }
    
    #dialogue-options {
        gap: 6px;
        grid-template-columns: 1fr;
    }
}

/* 平板豎屏優化 */
@media (min-width: 768px) and (max-width: 1024px) and (orientation: portrait) {
    #dialogue-box {
        width: 85%;
        max-height: 45vh;
    }
    
    .portrait-container {
        width: 130px;
    }
    
    .text-container {
        padding: 18px;
    }
}

/* 平板橫屏優化 */
@media (min-width: 768px) and (orientation: landscape) {
    #dialogue-box {
        width: 80%;
        max-height: 50vh;
        bottom: 10px;
    }
    
    .text-container {
        padding: 15px;
    }
}

/* 桌面版本 */
@media (min-width: 1025px) {
    #dialogue-box {
        width: 800px;
        max-width: 95vw;
        max-height: 45vh;
    }
    
    .portrait-container {
        width: 140px;
    }
    
    .text-container {
        padding: 20px;
    }
    
    #speaker-name {
        font-size: 1.5rem;
    }
    
    #dialogue-text {
        font-size: 1.3rem;
    }
}

#battle-answers {
    display: grid;
    grid-template-columns: 1fr 1fr; /* Two columns for battle answers too */
    gap: 10px;
}

#battle-answers .answer-btn {
    width: 100%;
    margin: 0; /* Reset margin for grid */
}

/* Battle */
#battle-screen {
    display: flex;
    flex-direction: column;
    justify-content: flex-end; /* Push content to bottom */
    align-items: center;
    padding-bottom: 20px;
}

.monster-area {
    text-align: center;
    margin-bottom: auto; /* Push to top */
    margin-top: 50px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.monster-hp-bar {
    width: 400px;
    height: 30px;
    background: #333;
    border: 2px solid #fff;
    margin: 0 auto 20px;
}

#monster-hp-fill {
    height: 100%;
    background: #9b59b6;
    transition: width 0.3s;
}

#monster-sprite {
    width: 180px;
    height: 180px;
    background-color: red; /* Placeholder */
    margin: 0 auto;
    image-rendering: pixelated;
}

.battle-ui {
    width: 100%;
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}

#battle-question-box {
    width: 95%; /* Match dialogue box width */
    background: var(--ui-bg);
    border: var(--pixel-border);
    padding: 20px;
    text-align: left;
    min-height: 200px;
}

#battle-question-text {
    font-size: 1.3rem; /* Larger font */
    margin-bottom: 20px;
    line-height: 1.5;
}

.answer-btn {
    display: block;
    width: 100%;
    margin: 10px 0;
    text-align: left;
    font-size: 1.2rem;
    padding: 15px;
}

/* Mobile Controls - Virtual Joystick */
#mobile-controls {
    position: fixed;
    bottom: 20px;
    left: 20px;
    width: auto;
    height: auto;
    pointer-events: none;
    z-index: 30;
    display: none; /* Hidden by default on desktop */
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    left: 10px;
    right: 10px;
    bottom: 10px;
    padding: 10px;
    gap: 20px;
}

/* 手機直屏模式 (< 768px) */
@media (max-width: 767px) and (orientation: portrait) {
    #mobile-controls {
        display: flex;
        justify-content: space-between;
        align-items: flex-end;
        width: 100%;
        height: auto;
        bottom: 10px;
        left: 0;
        right: 0;
        padding: 10px;
        gap: 15px;
    }
    
    .joystick-container {
        flex-shrink: 0;
        order: 0;
    }
    
    .action-pad {
        flex-shrink: 0;
        order: 2;
    }
}

/* 平板設備豎屏模式 (768px ~ 1024px) */
@media (min-width: 768px) and (max-width: 1024px) and (orientation: portrait) {
    #mobile-controls {
        display: flex;
        justify-content: space-between;
        align-items: flex-end;
        width: 100%;
        height: auto;
        bottom: 15px;
        left: 0;
        right: 0;
        padding: 15px;
        gap: 20px;
    }
    
    .joystick-container {
        width: 140px;
        height: 140px;
        flex-shrink: 0;
        order: 0;
    }
    
    .action-pad {
        flex-shrink: 0;
        order: 2;
    }
    
    .a-btn {
        width: 80px;
        height: 80px;
        font-size: 1.5rem;
    }
}

/* 平板設備橫屏模式 (768px ~ 1024px) */
@media (min-width: 768px) and (max-width: 1024px) and (orientation: landscape) {
    #mobile-controls {
        display: flex;
        justify-content: space-between;
        align-items: flex-end;
        width: 100%;
        height: auto;
        bottom: 10px;
        left: 0;
        right: 0;
        padding: 10px;
        gap: 15px;
    }
    
    .joystick-container {
        width: 120px;
        height: 120px;
        flex-shrink: 0;
        order: 0;
    }
    
    .action-pad {
        flex-shrink: 0;
        order: 2;
    }
    
    .a-btn {
        width: 70px;
        height: 70px;
        font-size: 1.2rem;
    }
}

/* 手機橫屏模式 (< 768px) - 全面優化 */
@media (max-width: 767px) and (orientation: landscape) {
    body, #game-container {
        font-size: 12px;
    }
    
    #mobile-controls {
        display: flex;
        justify-content: space-between;
        align-items: flex-end;
        bottom: 8px;
        left: 0;
        right: 0;
        width: 100%;
        height: auto;
        padding: 5px;
        gap: 10px;
    }
    
    .joystick-container {
        width: 100px;
        height: 100px;
        flex-shrink: 0;
        order: 0;
    }
    
    .action-pad {
        flex-shrink: 0;
        order: 2;
    }
    
    .pixel-box {
        max-width: 95%;
        padding: 12px;
        max-height: 80vh;
        overflow-y: auto;
    }
    
    .login-box {
        width: 90%;
        padding: 15px;
    }
    
    h1 {
        font-size: 1.2rem;
        margin: 5px 0;
    }
    
    h2 {
        font-size: 1rem;
        margin: 5px 0;
    }
    
    p {
        font-size: 0.9rem;
        margin: 5px 0;
    }
    
    input[type="text"] {
        font-size: 0.85rem;
        padding: 6px;
        margin: 5px 0;
    }
    
    .pixel-btn {
        font-size: 0.75rem;
        padding: 8px 12px;
        margin: 3px;
    }
    
    /* 對話框橫屏優化 */
    #dialogue-box {
        width: 90%;
        max-height: 40vh;
        bottom: 5px;
        padding: 0;
    }
    
    .dialogue-container {
        display: flex;
        gap: 8px;
    }
    
    .portrait-container {
        width: 70px;
        min-width: 70px;
        height: 80px;
    }
    
    .text-container {
        padding: 12px;
        overflow-y: auto;
    }
    
    #speaker-name {
        font-size: 1rem;
        margin: 0 0 5px 0;
    }
    
    #dialogue-text {
        font-size: 0.85rem;
        line-height: 1.3;
        margin: 0;
    }
    
    #next-dialogue-btn {
        font-size: 0.8rem;
        padding: 5px 10px;
        margin-top: 5px;
    }
    
    #dialogue-options {
        margin-top: 8px;
        gap: 6px;
    }
    
    #dialogue-options .pixel-btn {
        font-size: 0.75rem;
        padding: 6px;
    }
    
    /* 戰鬥屏幕橫屏優化 */
    #battle-screen {
        padding-bottom: 10px;
    }
    
    .monster-area {
        margin-top: 20px;
        margin-bottom: auto;
    }
    
    #monster-sprite {
        width: 120px;
        height: 120px;
    }
    
    .monster-hp-bar {
        width: 300px;
        height: 20px;
    }
    
    #battle-question-box {
        width: 85%;
        padding: 12px;
        min-height: 120px;
        max-height: 35vh;
        overflow-y: auto;
    }
    
    #battle-question-text {
        font-size: 0.9rem;
        margin-bottom: 8px;
        line-height: 1.3;
    }
    
    #battle-answers {
        gap: 6px;
    }
    
    .answer-btn {
        font-size: 0.75rem;
        padding: 6px;
        margin: 3px 0;
    }
    
    .status-bar {
        font-size: 0.75rem;
        padding: 6px 8px;
        flex-wrap: wrap;
        gap: 6px;
    }
    
    .hp-bar {
        width: 100px;
        height: 14px;
    }
    
    /* 結束屏幕優化 */
    .result-box {
        max-width: 95%;
        padding: 12px;
    }
    
    .result-box h1 {
        font-size: 1.2rem;
        margin: 8px 0;
    }
    
    .stats {
        font-size: 0.8rem;
        line-height: 1.4;
    }
    
    .stats p {
        margin: 3px 0;
    }
    
    /* 摇杆缩小 */
    .joystick-container {
        width: 100px;
        height: 100px;
    }
    
    .joystick-stick {
        width: 35px;
        height: 35px;
    }
}

.joystick-container {
    pointer-events: auto;
    width: 140px;
    height: 140px;
    flex-shrink: 0;
}

/* 橫屏時摇杆縮小 */
.joystick-bg {
    position: relative;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid #fff;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    touch-action: none;
}

.joystick-stick {
    position: absolute;
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.6);
    border: 2px solid #fff;
    border-radius: 50%;
    cursor: grab;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    transition: background 0.1s;
}

.joystick-stick:active {
    background: rgba(255, 255, 255, 0.8);
}

.action-pad {
    pointer-events: auto;
    display: flex;
    gap: 10px;
    flex-shrink: 0;
}

.a-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: rgba(231, 76, 60, 0.7);
    border: 2px solid #fff;
    color: #fff;
    font-size: 1.2rem;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.1s;
    display: flex;
    justify-content: center;
    align-items: center;
    pointer-events: auto;
}

.a-btn:active {
    background: rgba(231, 76, 60, 0.9);
}

/* 手機直屏模式下A按钮稍大 (< 768px) */
@media (max-width: 767px) and (orientation: portrait) {
    .a-btn {
        width: 70px;
        height: 70px;
        font-size: 1.3rem;
    }
}

/* 手機橫屏模式下A按钮縮小 (< 768px) */
@media (max-width: 767px) and (orientation: landscape) {
    .a-btn {
        width: 50px;
        height: 50px;
        font-size: 0.9rem;
    }
}

/* 平板設備豎屏A按钮尺寸 (768px ~ 1024px) */
@media (min-width: 768px) and (max-width: 1024px) and (orientation: portrait) {
    .a-btn {
        width: 80px;
        height: 80px;
        font-size: 1.5rem;
    }
}

/* 平板設備橫屏A按钮尺寸 (768px ~ 1024px) */
@media (min-width: 768px) and (max-width: 1024px) and (orientation: landscape) {
    .a-btn {
        width: 70px;
        height: 70px;
        font-size: 1.2rem;
    }
}

/* Effects */
.shake {
    animation: shake 0.5s;
}



@keyframes shake {
    0% { transform: translate(1px, 1px) rotate(0deg); }
    10% { transform: translate(-1px, -2px) rotate(-1deg); }
    20% { transform: translate(-3px, 0px) rotate(1deg); }
    30% { transform: translate(3px, 2px) rotate(0deg); }
    40% { transform: translate(1px, -1px) rotate(1deg); }
    50% { transform: translate(-1px, 2px) rotate(-1deg); }
    60% { transform: translate(-3px, 1px) rotate(0deg); }
    70% { transform: translate(3px, 1px) rotate(-1deg); }
    80% { transform: translate(-1px, -1px) rotate(1deg); }
    90% { transform: translate(1px, 2px) rotate(0deg); }
    100% { transform: translate(1px, -2px) rotate(-1deg); }
}