* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    user-select: none;
    -webkit-user-select: none;
    -webkit-tap-highlight-color: transparent;
}

body {
    background: radial-gradient(circle at center, #1b2838 0%, #0d1219 100%);
    font-family: 'Press Start 2P', monospace;
    color: #fff;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    touch-action: manipulation;
}

#game-container {
    position: relative;
    width: 100%;
    max-width: 480px;
    height: 100vh;
    max-height: 680px;
    background-color: #000;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.7), 0 0 0 6px #2b3b4c, 0 0 0 10px #141b24;
    border-radius: 14px;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

#gameCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    image-rendering: pixelated;
    image-rendering: crisp-edges;
    display: block;
    touch-action: none;
}

/* UI Overlay Layer */
#ui-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 10;
    touch-action: none;
}

.screen {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    padding: 28px 20px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s ease;
    pointer-events: none;
}

.screen.active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

/* Sound Button */
.icon-btn {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 42px;
    height: 42px;
    background: rgba(0, 0, 0, 0.6);
    border: 3px solid #fff;
    border-radius: 50%;
    color: #fff;
    font-size: 18px;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    z-index: 20;
    pointer-events: auto;
    transition: transform 0.15s, background 0.15s;
    box-shadow: 0 4px 10px rgba(0,0,0,0.5);
}

.icon-btn:hover {
    transform: scale(1.1);
    background: rgba(0, 0, 0, 0.85);
}

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

/* 1. CHARACTER SELECT SCREEN */
.game-logo {
    text-align: center;
    margin-top: 10px;
}

.title-main {
    font-size: 26px;
    color: #fce138;
    text-shadow: 
        3px 3px 0 #d17a00,
        -2px -2px 0 #000,  
        2px -2px 0 #000,
        -2px 2px 0 #000,
        2px 2px 0 #000,
        0 6px 12px rgba(0,0,0,0.6);
    letter-spacing: 2px;
    margin-bottom: 8px;
    animation: titleBob 2.5s ease-in-out infinite alternate;
}

@keyframes titleBob {
    from { transform: translateY(0px) rotate(-1deg); }
    to { transform: translateY(-4px) rotate(1deg); }
}

.title-sub {
    font-size: 11px;
    color: #fff;
    background: rgba(0, 0, 0, 0.6);
    padding: 4px 12px;
    border-radius: 20px;
    border: 2px solid #5ca418;
    letter-spacing: 1px;
}

/* Character Carousel */
.character-carousel {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    width: 100%;
    margin: 10px 0;
}

.nav-arrow-btn {
    background: linear-gradient(180deg, #ffdc33 0%, #e68a00 100%);
    border: 3px solid #000;
    border-radius: 12px;
    color: #000;
    font-size: 20px;
    width: 48px;
    height: 52px;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    box-shadow: 0 5px 0 #8c4c00, 0 8px 15px rgba(0,0,0,0.5);
    transition: transform 0.1s, box-shadow 0.1s;
}

.nav-arrow-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 7px 0 #8c4c00, 0 10px 20px rgba(0,0,0,0.6);
}

.nav-arrow-btn:active {
    transform: translateY(3px);
    box-shadow: 0 2px 0 #8c4c00;
}

.character-card {
    background: rgba(18, 25, 38, 0.92);
    border: 4px solid #fce138;
    border-radius: 18px;
    padding: 16px 14px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    width: 230px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.6), inset 0 0 15px rgba(252, 225, 56, 0.15);
    position: relative;
}

.char-preview-box {
    position: relative;
    width: 110px;
    height: 110px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 8px;
}

#char-preview-img {
    width: 100px;
    height: 100px;
    object-fit: contain;
    filter: drop-shadow(0 6px 10px rgba(0,0,0,0.5));
    animation: charBob 1.6s ease-in-out infinite alternate;
    transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes charBob {
    0% { transform: translateY(-4px) rotate(-3deg); }
    100% { transform: translateY(6px) rotate(3deg); }
}

.char-shadow {
    position: absolute;
    bottom: -2px;
    width: 60px;
    height: 12px;
    background: radial-gradient(ellipse, rgba(0,0,0,0.6) 0%, rgba(0,0,0,0) 70%);
    border-radius: 50%;
    animation: shadowPulse 1.6s ease-in-out infinite alternate;
}

@keyframes shadowPulse {
    0% { transform: scale(0.85); opacity: 0.5; }
    100% { transform: scale(1.15); opacity: 0.8; }
}

/* Locked bird state */
.char-preview-box.locked #char-preview-img,
.char-preview-box.locked img {
    filter: grayscale(1) brightness(0.55) drop-shadow(0 6px 10px rgba(0,0,0,0.5));
    animation: none;
}

.lock-badge {
    position: absolute;
    bottom: 2px;
    right: 2px;
    background: rgba(0, 0, 0, 0.75);
    border: 2px solid #fce138;
    border-radius: 10px;
    padding: 3px 8px;
    font-family: 'Press Start 2P', monospace;
    font-size: 9px;
    color: #fce138;
    display: flex;
    align-items: center;
    gap: 3px;
}

.character-card.locked {
    border-color: #7d8a99;
}

.dot.locked {
    opacity: 0.45;
}

.char-title {
    font-size: 13px;
    color: #fff;
    margin-bottom: 6px;
    text-shadow: 2px 2px 0 #000;
}

.char-badge {
    font-family: 'Fredoka', sans-serif;
    font-size: 12px;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 12px;
    margin-bottom: 8px;
    border: 1px solid rgba(255,255,255,0.2);
}

.badge-autumn {
    background: linear-gradient(90deg, #d9532f, #f39c12);
    color: #fff;
}

.badge-anemo {
    background: linear-gradient(90deg, #16a085, #2ecc71);
    color: #fff;
}

.badge-sakura {
    background: linear-gradient(90deg, #e84393, #fd79a8);
    color: #fff;
}

.badge-electro {
    background: linear-gradient(90deg, #6c5ce7, #a29bfe);
    color: #fff;
}

.badge-geo {
    background: linear-gradient(90deg, #d35400, #f39c12);
    color: #fff;
}

.badge-yaksha {
    background: linear-gradient(90deg, #009688, #00b894);
    color: #fff;
}

.badge-spring {
    background: linear-gradient(90deg, #689f38, #aed581);
    color: #fff;
}

.badge-forest {
    background: linear-gradient(90deg, #0d7a5f, #16a37a);
    color: #fff;
}

.badge-ocean {
    background: linear-gradient(90deg, #14618f, #1e88c7);
    color: #fff;
}

.badge-amethyst {
    background: linear-gradient(90deg, #5e3370, #8e44ad);
    color: #fff;
}

.badge-legendary {
    background: linear-gradient(90deg, #c9970a, #f1c40f);
    color: #3a2a00;
}

.char-desc {
    font-family: 'Fredoka', sans-serif;
    font-size: 11px;
    color: #cbd5e1;
    line-height: 1.35;
}

/* Dots Indicator */
.select-indicator {
    display: flex;
    gap: 8px;
    margin: 4px 0 10px 0;
}

.select-indicator .dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    border: 2px solid #000;
    cursor: pointer;
    transition: all 0.2s ease;
}

.select-indicator .dot.active {
    background: #fce138;
    transform: scale(1.3);
    box-shadow: 0 0 8px #fce138;
}

/* Retro Buttons */
.retro-btn {
    position: relative;
    padding: 14px 28px;
    font-family: 'Press Start 2P', monospace;
    font-size: 13px;
    border: 4px solid #000;
    border-radius: 12px;
    cursor: pointer;
    text-align: center;
    display: inline-block;
    transition: transform 0.1s, box-shadow 0.1s;
}

.btn-primary {
    background: linear-gradient(180deg, #5cd628 0%, #2e8b08 100%);
    color: #fff;
    box-shadow: 0 6px 0 #1b5305, 0 10px 20px rgba(0,0,0,0.5);
    text-shadow: 2px 2px 0 #000;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 0 #1b5305, 0 12px 25px rgba(0,0,0,0.6);
}

.btn-primary:active {
    transform: translateY(4px);
    box-shadow: 0 2px 0 #1b5305;
}

.btn-secondary {
    background: linear-gradient(180deg, #3aa0ff 0%, #1562b8 100%);
    color: #fff;
    box-shadow: 0 6px 0 #0c3d75, 0 10px 20px rgba(0,0,0,0.5);
    text-shadow: 2px 2px 0 #000;
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 0 #0c3d75;
}

.btn-secondary:active {
    transform: translateY(4px);
    box-shadow: 0 2px 0 #0c3d75;
}

.pulse {
    animation: btnPulse 1.8s infinite alternate;
}

@keyframes btnPulse {
    0% { transform: scale(1); }
    100% { transform: scale(1.05); }
}

.retro-btn.locked-btn {
    background: linear-gradient(180deg, #8a95a1 0%, #5b6570 100%);
    box-shadow: 0 6px 0 #333c44, 0 10px 20px rgba(0,0,0,0.5);
    animation: none;
}

.retro-btn.shake {
    animation: denyShake 0.4s ease;
}

@keyframes denyShake {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-8px); }
    40% { transform: translateX(7px); }
    60% { transform: translateX(-5px); }
    80% { transform: translateX(3px); }
}

.high-score-display {
    font-size: 10px;
    color: #fce138;
    text-shadow: 2px 2px 0 #000;
    margin-top: 4px;
}

.controls-hint {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-family: 'Fredoka', sans-serif;
    font-size: 11px;
    color: #fff;
    text-shadow: 1px 1px 0 #000, -1px -1px 0 #000, 1px -1px 0 #000, -1px 1px 0 #000;
    text-align: center;
}

.fan-disclaimer {
    font-family: 'Fredoka', sans-serif;
    font-size: 8px;
    color: #64748b;
    text-align: center;
    max-width: 260px;
    line-height: 1.4;
    margin-top: 4px;
}

/* 2. GET READY SCREEN */
#screen-ready {
    justify-content: center;
}

.ready-banner {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    background: rgba(0, 0, 0, 0.65);
    border: 3px solid #fff;
    border-radius: 16px;
    padding: 20px 24px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.6);
}

.ready-text {
    font-size: 22px;
    color: #fce138;
    text-shadow: 3px 3px 0 #d17a00, -2px -2px 0 #000, 2px -2px 0 #000, -2px 2px 0 #000, 2px 2px 0 #000;
    margin-bottom: 14px;
    animation: readyBounce 1.2s ease-in-out infinite alternate;
}

@keyframes readyBounce {
    0% { transform: translateY(0); }
    100% { transform: translateY(-8px); }
}

.tap-instruction {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.hand-icon {
    font-size: 34px;
    animation: tapAnim 1s infinite alternate;
}

@keyframes tapAnim {
    0% { transform: translateY(0) scale(1); }
    100% { transform: translateY(-10px) scale(1.15); }
}

.tap-instruction span {
    font-family: 'Fredoka', sans-serif;
    font-size: 13px;
    color: #fff;
    max-width: 220px;
    line-height: 1.4;
}

/* 3. GAME OVER SCREEN */
#screen-gameover {
    justify-content: center;
}

.gameover-card {
    background: rgba(18, 25, 38, 0.95);
    border: 4px solid #e74c3c;
    border-radius: 20px;
    padding: 24px 20px;
    width: 320px;
    display: flex;
    flex-direction: column;
    align-items: center;
    box-shadow: 0 15px 40px rgba(0,0,0,0.8), 0 0 20px rgba(231, 76, 60, 0.4);
    animation: popIn 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes popIn {
    0% { transform: scale(0.6); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
}

.gameover-header {
    font-size: 20px;
    color: #e74c3c;
    text-shadow: 3px 3px 0 #7b1d13, -2px -2px 0 #000, 2px -2px 0 #000, -2px 2px 0 #000, 2px 2px 0 #000;
    margin-bottom: 16px;
    letter-spacing: 2px;
}

.score-board {
    background: #0f172a;
    border: 3px solid #334155;
    border-radius: 14px;
    width: 100%;
    padding: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.medal-slot {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.medal-label {
    font-size: 8px;
    color: #94a3b8;
}

.medal {
    font-size: 38px;
    filter: drop-shadow(0 4px 6px rgba(0,0,0,0.5));
}

.score-data {
    display: flex;
    flex-direction: column;
    gap: 10px;
    text-align: right;
}

.score-row {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.score-row .label {
    font-size: 8px;
    color: #fce138;
}

.score-row .val {
    font-size: 16px;
    color: #fff;
    text-shadow: 2px 2px 0 #000;
}

.new-record {
    font-family: 'Fredoka', sans-serif;
    font-size: 11px;
    font-weight: 700;
    color: #2ecc71;
    animation: flash 0.8s infinite alternate;
}

@keyframes flash {
    0% { opacity: 0.4; }
    100% { opacity: 1; }
}

.hidden {
    display: none;
}

/* Tertiary (leaderboard) buttons */
.btn-tertiary {
    background: linear-gradient(180deg, #ffb347 0%, #c26a00 100%);
    color: #fff;
    box-shadow: 0 6px 0 #7a4200, 0 10px 20px rgba(0,0,0,0.5);
    text-shadow: 2px 2px 0 #000;
    font-size: 11px;
    padding: 12px 10px;
}

.btn-tertiary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 0 #7a4200, 0 12px 25px rgba(0,0,0,0.6);
}

.btn-tertiary:active {
    transform: translateY(4px);
    box-shadow: 0 2px 0 #7a4200;
}

.leaderboard-open-btn {
    margin-top: 10px;
    width: 100%;
    max-width: 230px;
}

/* 4. LEADERBOARD MODAL */
#screen-leaderboard.modal-screen {
    z-index: 30;
    justify-content: center;
}

.leaderboard-card {
    background: rgba(18, 25, 38, 0.97);
    border: 4px solid #ffb347;
    border-radius: 20px;
    padding: 20px 18px;
    width: 100%;
    max-width: 340px;
    max-height: 82vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 15px 40px rgba(0,0,0,0.8), 0 0 20px rgba(255, 179, 71, 0.35);
}

.leaderboard-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
    color: #ffb347;
    text-shadow: 2px 2px 0 #000;
    margin-bottom: 16px;
}

.modal-close-btn {
    position: static;
    width: 32px;
    height: 32px;
    font-size: 14px;
    border-width: 2px;
}

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

.profile-label {
    font-family: 'Fredoka', sans-serif;
    font-size: 11px;
    color: #cbd5e1;
    white-space: nowrap;
}

.nickname-input {
    flex: 1;
    min-width: 0;
    font-family: 'Fredoka', sans-serif;
    font-size: 13px;
    padding: 8px 10px;
    border-radius: 8px;
    border: 2px solid #334155;
    background: #0f172a;
    color: #fff;
}

.nickname-input:focus {
    outline: none;
    border-color: #ffb347;
}

.nickname-save-btn {
    padding: 8px 12px;
    font-size: 10px;
}

.nickname-feedback {
    font-family: 'Fredoka', sans-serif;
    font-size: 10px;
    color: #f87171;
    margin-bottom: 8px;
}

.nickname-feedback.success {
    color: #4ade80;
}

.leaderboard-status {
    font-family: 'Fredoka', sans-serif;
    font-size: 11px;
    color: #94a3b8;
    text-align: center;
    padding: 16px 4px;
    line-height: 1.5;
}

.leaderboard-list {
    list-style: none;
    overflow-y: auto;
    margin: 4px 0 14px 0;
    padding-right: 2px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.leaderboard-row {
    display: flex;
    align-items: center;
    gap: 8px;
    background: #0f172a;
    border: 2px solid #334155;
    border-radius: 10px;
    padding: 8px 10px;
    font-family: 'Fredoka', sans-serif;
}

.leaderboard-row.rank-1 { border-color: #f1c40f; }
.leaderboard-row.rank-2 { border-color: #cbd5e1; }
.leaderboard-row.rank-3 { border-color: #d9822b; }

.leaderboard-rank {
    font-size: 12px;
    font-weight: 700;
    color: #ffb347;
    width: 22px;
    flex-shrink: 0;
}

.leaderboard-name {
    flex: 1;
    min-width: 0;
    font-size: 12px;
    color: #fff;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.leaderboard-score {
    font-size: 13px;
    font-weight: 700;
    color: #fce138;
    flex-shrink: 0;
}

.refresh-btn {
    width: 100%;
    font-size: 11px;
    padding: 10px;
}

/* Bird Unlock Toast */
.unlock-toast {
    position: absolute;
    top: 16px;
    left: 50%;
    transform: translate(-50%, -140%);
    background: linear-gradient(180deg, #2e8b08 0%, #1b5305 100%);
    border: 3px solid #fce138;
    border-radius: 14px;
    padding: 10px 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.6);
    opacity: 0;
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.3s ease;
    z-index: 25;
    max-width: 88%;
}

.unlock-toast.show {
    transform: translate(-50%, 0);
    opacity: 1;
}

.unlock-toast-icon {
    font-size: 18px;
}

#unlock-toast-text {
    font-family: 'Fredoka', sans-serif;
    font-weight: 700;
    font-size: 12px;
    color: #fff;
    text-shadow: 1px 1px 0 #000;
}

.gameover-buttons {
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: 100%;
}

.gameover-buttons .retro-btn {
    width: 100%;
    font-size: 11px;
    padding: 12px 10px;
}

/* Mobile responsive */
@media (max-width: 480px) {
    #game-container {
        border-radius: 0;
        box-shadow: none;
        max-height: 100vh;
    }
}