/* ============================================
   SUSHI vs RAMEN vs TEMPURA - Christmas 2025
   Mobile-First Responsive Styles
   ============================================ */

/* CSS Variables */
:root {
    --color-bg-dark: #1a0a2e;
    --color-bg-gradient: linear-gradient(135deg, #1a0a2e 0%, #2d1b4e 50%, #1a0a2e 100%);
    --color-neon-pink: #ff6b9d;
    --color-neon-blue: #00d4ff;
    --color-neon-purple: #b44aff;
    --color-gold: #ffd700;
    --color-christmas-red: #e74c3c;
    --color-christmas-green: #27ae60;

    /* Player Colors */
    --color-anna: #ff6b9d;
    --color-olinka: #ff9f43;
    --color-rachel: #ffd700;
    --color-veronika: #ff69b4;

    --font-title: 'Fredoka One', cursive;
    --font-body: 'Nunito', sans-serif;

    --safe-area-top: env(safe-area-inset-top, 0px);
    --safe-area-bottom: env(safe-area-inset-bottom, 0px);
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    user-select: none;
}

body {
    font-family: var(--font-body);
    background: var(--color-bg-gradient);
    color: white;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

/* Screen Management */
.screen {
    display: none;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    padding: var(--safe-area-top) 16px var(--safe-area-bottom);
    overflow: hidden;
}

.screen.active {
    display: flex;
    flex-direction: column;
}

/* ============================================
   LOADING SCREEN
   ============================================ */
#loading-screen {
    justify-content: center;
    align-items: center;
    background: var(--color-bg-gradient);
}

.loading-content {
    text-align: center;
    z-index: 10;
}

.game-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    margin-bottom: 16px;
}

.logo-main {
    font-family: var(--font-title);
    font-size: 2.8rem;
    background: linear-gradient(90deg, var(--color-anna), var(--color-olinka), var(--color-rachel));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
    filter: drop-shadow(0 0 20px rgba(255,107,157,0.5));
}

.game-subtitle {
    font-family: var(--font-body);
    font-size: 1rem;
    color: rgba(255,255,255,0.7);
    font-weight: 700;
    margin-top: 8px;
    letter-spacing: 2px;
}

.game-subtitle-small {
    font-family: var(--font-body);
    font-size: 0.85rem;
    color: rgba(255,255,255,0.6);
    font-weight: 600;
    margin-top: 4px;
    letter-spacing: 1px;
}

.christmas-subtitle {
    font-family: var(--font-title);
    font-size: 1.2rem;
    color: var(--color-christmas-red);
    text-shadow: 0 0 10px var(--color-christmas-red);
    margin-bottom: 32px;
}

.loading-spinner {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 16px;
}

.spinner-food {
    font-size: 2rem;
    animation: bounce 0.6s ease-in-out infinite;
}

.spinner-food:nth-child(2) {
    animation-delay: 0.2s;
}

.spinner-food:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

.loading-text {
    color: rgba(255,255,255,0.7);
    font-size: 0.9rem;
}

/* ============================================
   ERROR SCREEN
   ============================================ */
#error-screen {
    justify-content: center;
    align-items: center;
    background: var(--color-bg-gradient);
    text-align: center;
}

.error-content {
    padding: 32px;
}

.error-emoji {
    font-size: 5rem;
    margin-bottom: 24px;
    animation: shake 2s ease-in-out infinite;
}

@keyframes shake {
    0%, 100% { transform: rotate(-5deg); }
    50% { transform: rotate(5deg); }
}

.error-content h1 {
    font-family: var(--font-title);
    font-size: 2rem;
    margin-bottom: 16px;
    color: var(--color-gold);
}

.error-content p {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.8);
    line-height: 1.6;
    margin-bottom: 24px;
}

.player-select-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    max-width: 320px;
    margin: 0 auto;
}

.player-select-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 16px 12px;
    background: rgba(255,255,255,0.1);
    border: 2px solid rgba(255,255,255,0.2);
    border-radius: 16px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.player-select-btn:hover,
.player-select-btn:active {
    background: rgba(255,255,255,0.2);
    border-color: var(--color-gold);
    transform: scale(1.05);
}

.player-select-btn .player-emoji {
    font-size: 2.5rem;
}

.player-select-btn .player-name {
    font-family: var(--font-title);
    font-size: 1.1rem;
    color: white;
}

.player-select-btn .player-character {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.6);
}

.player-select-btn[data-player="anna"] { border-color: var(--color-anna); }
.player-select-btn[data-player="olinka"] { border-color: var(--color-olinka); }
.player-select-btn[data-player="rachel"] { border-color: var(--color-rachel); }
.player-select-btn[data-player="veronika"] { border-color: var(--color-veronika); }

/* ============================================
   MENU SCREEN
   ============================================ */
#menu-screen {
    justify-content: space-between;
    padding-top: calc(var(--safe-area-top) + 12px);
    padding-bottom: calc(var(--safe-area-bottom) + 8px);
}

.menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 8px;
}

.player-welcome {
    display: flex;
    flex-direction: column;
}

.welcome-text {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.6);
}

.player-name {
    font-family: var(--font-title);
    font-size: 1.5rem;
    background: linear-gradient(90deg, var(--color-anna), var(--color-olinka));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.player-name.anna { color: var(--color-anna); -webkit-text-fill-color: var(--color-anna); }
.player-name.olinka { color: var(--color-olinka); -webkit-text-fill-color: var(--color-olinka); }
.player-name.rachel { color: var(--color-rachel); -webkit-text-fill-color: var(--color-rachel); }

.character-icon {
    font-size: 2.5rem;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.menu-title {
    text-align: center;
    padding: 8px;
}

.menu-title h1 {
    font-family: var(--font-title);
    font-size: 1.6rem;
    line-height: 1.2;
    background: linear-gradient(90deg, var(--color-anna), var(--color-olinka), var(--color-rachel));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
    filter: drop-shadow(0 0 15px rgba(255,107,157,0.4));
}

.menu-title .subtitle {
    font-family: var(--font-title);
    font-size: 0.85rem;
    color: var(--color-christmas-red);
    margin-top: 8px;
}

.menu-stats {
    display: flex;
    justify-content: center;
    gap: 8px;
    padding: 0 8px;
}

.stat-box {
    flex: 1;
    max-width: 100px;
    background: rgba(255,255,255,0.1);
    border-radius: 10px;
    padding: 8px 6px;
    text-align: center;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.1);
}

.stat-label {
    display: block;
    font-size: 0.7rem;
    color: rgba(255,255,255,0.6);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-value {
    display: block;
    font-family: var(--font-title);
    font-size: 1.1rem;
    color: var(--color-gold);
    margin-top: 2px;
}

.menu-buttons {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 0 24px;
}

.menu-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 14px 20px;
    border: none;
    border-radius: 14px;
    font-family: var(--font-title);
    font-size: 1.05rem;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
}

.menu-btn:active {
    transform: scale(0.98);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-christmas-red), #c0392b);
    color: white;
    box-shadow: 0 4px 20px rgba(231, 76, 60, 0.4);
}

.btn-secondary {
    background: linear-gradient(135deg, var(--color-neon-purple), #8e44ad);
    color: white;
    box-shadow: 0 4px 20px rgba(180, 74, 255, 0.3);
}

.btn-tertiary {
    background: rgba(255,255,255,0.1);
    color: white;
    border: 2px solid rgba(255,255,255,0.2);
}

.btn-icon {
    font-size: 1.4rem;
}

.menu-footer {
    display: flex;
    justify-content: center;
    gap: 12px;
    padding: 4px;
}

.icon-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.icon-btn:active {
    transform: scale(0.95);
    background: rgba(255,255,255,0.2);
}

.studio-credit {
    text-align: center;
    padding: 4px;
}

.studio-credit span:first-child {
    font-size: 0.65rem;
    color: rgba(255,255,255,0.35);
}

.studio-name {
    font-family: var(--font-title);
    font-size: 0.8rem;
    background: linear-gradient(90deg, var(--color-neon-pink), var(--color-neon-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-left: 4px;
}

.studio-suffix {
    font-family: var(--font-body);
    font-size: 0.7rem;
    color: rgba(255,255,255,0.5);
    font-weight: 400;
    margin-left: 2px;
}

/* ============================================
   LEADERBOARD SCREEN
   ============================================ */
#leaderboard-screen {
    background: var(--color-bg-gradient);
}

.screen-header {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 0;
}

.back-btn {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: rgba(255,255,255,0.1);
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
}

.screen-header h2 {
    font-family: var(--font-title);
    font-size: 1.5rem;
}

.leaderboard-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.leaderboard-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

.tab-btn {
    flex: 1;
    padding: 12px;
    border: none;
    border-radius: 10px;
    background: rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.6);
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.tab-btn.active {
    background: var(--color-neon-purple);
    color: white;
}

.leaderboard-list {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding-bottom: 20px;
}

.leaderboard-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: rgba(255,255,255,0.08);
    border-radius: 16px;
    border: 1px solid rgba(255,255,255,0.1);
}

.leaderboard-item.rank-1 {
    background: linear-gradient(135deg, rgba(255,215,0,0.2), rgba(255,215,0,0.05));
    border-color: var(--color-gold);
}

.leaderboard-item.rank-2 {
    background: linear-gradient(135deg, rgba(192,192,192,0.2), rgba(192,192,192,0.05));
    border-color: silver;
}

.leaderboard-item.rank-3 {
    background: linear-gradient(135deg, rgba(205,127,50,0.2), rgba(205,127,50,0.05));
    border-color: #cd7f32;
}

.lb-rank {
    font-family: var(--font-title);
    font-size: 1.5rem;
    width: 40px;
    text-align: center;
}

.lb-rank.gold { color: var(--color-gold); }
.lb-rank.silver { color: silver; }
.lb-rank.bronze { color: #cd7f32; }

.lb-avatar {
    font-size: 2rem;
}

.lb-info {
    flex: 1;
}

.lb-name {
    font-family: var(--font-title);
    font-size: 1.1rem;
}

.lb-name.anna { color: var(--color-anna); }
.lb-name.olinka { color: var(--color-olinka); }
.lb-name.rachel { color: var(--color-rachel); }

.lb-character {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.5);
}

.lb-score {
    font-family: var(--font-title);
    font-size: 1.3rem;
    color: var(--color-gold);
}

/* ============================================
   GAME SCREEN
   ============================================ */
#game-screen {
    padding: 0;
}

#game-container {
    width: 100%;
    height: 100%;
}

#game-container canvas {
    display: block;
}

#game-hud {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    padding: calc(var(--safe-area-top) + 12px) 16px calc(var(--safe-area-bottom) + 12px);
}

.hud-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding-right: 60px; /* Space for pause button */
}

.hud-left {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.hud-center {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.hud-score {
    background: rgba(0,0,0,0.5);
    padding: 8px 16px;
    border-radius: 12px;
    backdrop-filter: blur(10px);
}

.score-label, .distance-label {
    display: block;
    font-size: 0.65rem;
    color: rgba(255,255,255,0.6);
    text-transform: uppercase;
    letter-spacing: 1px;
}

#hud-score-value {
    font-family: var(--font-title);
    font-size: 1.6rem;
    color: var(--color-gold);
}

.hud-distance {
    background: rgba(0,0,0,0.5);
    padding: 6px 12px;
    border-radius: 10px;
    backdrop-filter: blur(10px);
}

#hud-distance-value {
    font-family: var(--font-title);
    font-size: 1.1rem;
    color: var(--color-neon-blue);
}

.hud-lives {
    background: rgba(0,0,0,0.5);
    padding: 8px 12px;
    border-radius: 12px;
    backdrop-filter: blur(10px);
}

#hud-lives-value {
    font-size: 1.1rem;
    letter-spacing: 2px;
}

.hud-combo {
    background: linear-gradient(135deg, var(--color-christmas-red), #c0392b);
    padding: 8px 16px;
    border-radius: 12px;
    text-align: center;
    animation: pulse 0.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

#hud-combo-value {
    font-family: var(--font-title);
    font-size: 1.4rem;
    color: white;
}

.combo-label {
    display: block;
    font-size: 0.6rem;
    color: rgba(255,255,255,0.8);
    text-transform: uppercase;
}

.hud-bottom {
    position: absolute;
    bottom: calc(var(--safe-area-bottom) + 16px);
    left: 16px;
    right: 16px;
}

.hud-ability {
    display: flex;
    align-items: center;
    gap: 12px;
    background: rgba(0,0,0,0.5);
    padding: 8px 12px;
    border-radius: 12px;
    max-width: 180px;
}

.ability-icon {
    font-size: 1.5rem;
}

.ability-bar {
    flex: 1;
    height: 8px;
    background: rgba(255,255,255,0.2);
    border-radius: 4px;
    overflow: hidden;
}

.ability-fill {
    height: 100%;
    width: 100%;
    background: linear-gradient(90deg, var(--color-neon-blue), var(--color-neon-purple));
    border-radius: 4px;
    transition: width 0.2s ease;
}

.pause-btn {
    position: absolute;
    top: calc(var(--safe-area-top) + 12px);
    right: 16px;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: rgba(0,0,0,0.5);
    border: none;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    pointer-events: auto;
    backdrop-filter: blur(10px);
}

.ability-btn {
    position: absolute;
    bottom: calc(var(--safe-area-bottom) + 80px);
    right: 16px;
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-neon-purple), var(--color-neon-blue));
    border: 3px solid rgba(255,255,255,0.3);
    color: white;
    font-size: 2rem;
    cursor: pointer;
    pointer-events: auto;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(180, 74, 255, 0.5), 0 0 30px rgba(0, 212, 255, 0.3);
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.ability-btn.cooldown {
    background: rgba(100, 100, 100, 0.5);
    box-shadow: none;
    border-color: rgba(255,255,255,0.1);
}

.ability-btn.cooldown #ability-btn-icon {
    opacity: 0.4;
}

.ability-btn.ready {
    animation: abilityReady 1s ease-in-out infinite;
}

@keyframes abilityReady {
    0%, 100% { box-shadow: 0 4px 20px rgba(180, 74, 255, 0.5), 0 0 30px rgba(0, 212, 255, 0.3); }
    50% { box-shadow: 0 4px 30px rgba(180, 74, 255, 0.8), 0 0 50px rgba(0, 212, 255, 0.6); }
}

/* ============================================
   MODALS
   ============================================ */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.8);
    justify-content: center;
    align-items: center;
    padding: 24px;
    z-index: 1000;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: linear-gradient(135deg, #2d1b4e, #1a0a2e);
    border-radius: 24px;
    padding: 32px 24px;
    width: 100%;
    max-width: 340px;
    text-align: center;
    border: 1px solid rgba(255,255,255,0.1);
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

.modal-content h2 {
    font-family: var(--font-title);
    font-size: 1.8rem;
    margin-bottom: 24px;
}

.modal-buttons {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.modal-btn {
    width: 100%;
    padding: 16px;
    border: none;
    border-radius: 12px;
    font-family: var(--font-title);
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.modal-btn:active {
    transform: scale(0.98);
}

/* Game Over Modal */
.gameover-content {
    max-width: 360px;
}

#gameover-title {
    color: var(--color-christmas-red);
}

.gameover-score {
    margin-bottom: 16px;
}

.final-score-label {
    display: block;
    font-size: 0.9rem;
    color: rgba(255,255,255,0.6);
    margin-bottom: 4px;
}

.final-score-value {
    font-family: var(--font-title);
    font-size: 3rem;
    color: var(--color-gold);
    text-shadow: 0 0 20px var(--color-gold);
}

.new-record {
    background: linear-gradient(90deg, var(--color-gold), #ffa500);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-family: var(--font-title);
    font-size: 1.2rem;
    margin-bottom: 16px;
    animation: pulse 0.5s ease-in-out infinite;
}

.anime-quote {
    font-size: 1.1rem;
    color: var(--color-neon-pink);
    margin-bottom: 16px;
    padding: 10px 16px;
    background: rgba(255, 107, 157, 0.15);
    border-radius: 12px;
    border: 1px solid rgba(255, 107, 157, 0.3);
    font-style: italic;
}

.gameover-stats {
    background: rgba(255,255,255,0.05);
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 20px;
}

.go-stat {
    display: flex;
    justify-content: space-between;
    padding: 6px 0;
    font-size: 0.9rem;
}

.go-stat span:first-child {
    color: rgba(255,255,255,0.6);
}

.go-stat span:last-child {
    font-weight: 700;
    color: white;
}

.rival-comparison {
    margin-bottom: 20px;
}

.rival-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 12px;
    background: rgba(255,255,255,0.05);
    border-radius: 10px;
    margin-bottom: 8px;
}

.rival-info {
    display: flex;
    align-items: center;
    gap: 10px;
}

.rival-avatar {
    font-size: 1.5rem;
}

.rival-name {
    font-weight: 700;
}

.rival-name.anna { color: var(--color-anna); }
.rival-name.olinka { color: var(--color-olinka); }
.rival-name.rachel { color: var(--color-rachel); }

.rival-diff {
    font-family: var(--font-title);
    font-size: 0.95rem;
}

.rival-diff.ahead {
    color: var(--color-christmas-green);
}

.rival-diff.behind {
    color: var(--color-christmas-red);
}

/* Instructions Modal */
.instructions-content {
    max-width: 380px;
    max-height: 80vh;
    overflow-y: auto;
    text-align: left;
}

.instructions-content h2 {
    text-align: center;
}

.instructions-section {
    margin-bottom: 20px;
    padding: 12px;
    background: rgba(255,255,255,0.05);
    border-radius: 12px;
}

.instructions-section h3 {
    font-family: var(--font-title);
    font-size: 1rem;
    margin-bottom: 10px;
    color: var(--color-gold);
}

.instruction-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.instruction-item:last-child {
    border-bottom: none;
}

.instruction-action {
    font-family: var(--font-title);
    font-size: 0.9rem;
    color: var(--color-neon-pink);
    background: rgba(255,107,157,0.2);
    padding: 4px 10px;
    border-radius: 6px;
}

.instruction-desc {
    color: rgba(255,255,255,0.8);
    font-size: 0.9rem;
}

.instruction-items-grid {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 0.95rem;
}

.ability-info {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px;
    background: rgba(255,255,255,0.1);
    border-radius: 10px;
}

.ability-info .ability-emoji {
    font-size: 2rem;
}

.ability-info .ability-text {
    flex: 1;
}

.ability-info .ability-name {
    font-family: var(--font-title);
    font-size: 1rem;
    display: block;
}

.ability-info .ability-desc {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.6);
}

/* ============================================
   SNOWFLAKES ANIMATION
   ============================================ */
.snowflakes {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    overflow: hidden;
    z-index: 1;
}

.snowflake {
    position: absolute;
    top: -20px;
    color: rgba(255,255,255,0.6);
    font-size: 1rem;
    animation: snowfall linear infinite;
}

.snowflake:nth-child(1) { left: 5%; animation-duration: 8s; animation-delay: 0s; font-size: 0.8rem; }
.snowflake:nth-child(2) { left: 15%; animation-duration: 12s; animation-delay: 1s; font-size: 1.2rem; }
.snowflake:nth-child(3) { left: 30%; animation-duration: 10s; animation-delay: 2s; font-size: 0.9rem; }
.snowflake:nth-child(4) { left: 45%; animation-duration: 14s; animation-delay: 0.5s; font-size: 1rem; }
.snowflake:nth-child(5) { left: 60%; animation-duration: 9s; animation-delay: 3s; font-size: 1.1rem; }
.snowflake:nth-child(6) { left: 75%; animation-duration: 11s; animation-delay: 1.5s; font-size: 0.85rem; }
.snowflake:nth-child(7) { left: 85%; animation-duration: 13s; animation-delay: 2.5s; font-size: 1rem; }
.snowflake:nth-child(8) { left: 95%; animation-duration: 10s; animation-delay: 4s; font-size: 0.9rem; }

@keyframes snowfall {
    0% {
        transform: translateY(0) rotate(0deg);
        opacity: 1;
    }
    100% {
        transform: translateY(100vh) rotate(360deg);
        opacity: 0.3;
    }
}

/* ============================================
   FEVER MODE OVERLAY
   ============================================ */
.fever-mode {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 100;
    background: linear-gradient(
        45deg,
        rgba(255,107,157,0.1) 0%,
        rgba(255,159,67,0.1) 50%,
        rgba(255,215,0,0.1) 100%
    );
    animation: feverPulse 0.3s ease-in-out infinite;
}

@keyframes feverPulse {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.6; }
}

/* ============================================
   RESPONSIVE ADJUSTMENTS
   ============================================ */
@media (min-width: 480px) {
    .game-logo span {
        font-size: 3rem;
    }

    .menu-title h1 {
        font-size: 1.8rem;
    }

    .menu-btn {
        max-width: 400px;
        margin: 0 auto;
    }

    .stat-box {
        max-width: 140px;
    }
}

@media (min-width: 768px) {
    .modal-content {
        max-width: 420px;
        padding: 40px 32px;
    }

    .menu-buttons {
        max-width: 500px;
        margin: 0 auto;
    }
}

/* Landscape mode adjustments */
@media (max-height: 500px) and (orientation: landscape) {
    .menu-title h1 {
        font-size: 1.2rem;
    }

    .menu-stats {
        display: none;
    }

    .menu-btn {
        padding: 12px 24px;
    }

    .loading-content .game-logo span {
        font-size: 1.8rem;
    }
}

/* Dark mode preference */
@media (prefers-color-scheme: dark) {
    :root {
        color-scheme: dark;
    }
}