* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(135deg, #0f172a, #1e293b);
    color: #fff;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.container {
    position: relative;
    width: 100vw;
    height: 100vh;
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(10px);
}

#gameCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

h1 {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    font-size: 2.5rem;
    color: #60a5fa;
    text-shadow: 0 0 20px rgba(96, 165, 250, 0.5);
    background: rgba(15, 23, 42, 0.8);
    padding: 15px 30px;
    border-radius: 20px;
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    z-index: 100;
    letter-spacing: 2px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 1px solid rgba(96, 165, 250, 0.2);
}

h1:hover {
    transform: translateX(-50%) translateY(-2px);
    box-shadow: 0 12px 32px rgba(96, 165, 250, 0.3);
    text-shadow: 0 0 25px rgba(96, 165, 250, 0.7);
    border-color: rgba(96, 165, 250, 0.4);
}

h2 {
    margin-bottom: 1.5rem;
    color: #4ecca3;
}

h3 {
    margin-bottom: 1rem;
    color: #fff;
}

.difficulty-options, .mode-options {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

button {
    padding: 10px 20px;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.1);
    font-weight: 500;
}

button:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
    border-color: rgba(96, 165, 250, 0.3);
}

.difficulty-btn.active, .mode-btn.active {
    background: #60a5fa;
    color: #0f172a;
    box-shadow: 0 4px 12px rgba(96, 165, 250, 0.3);
    border-color: transparent;
}

.start-btn {
    background: #4ecca3;
    color: #1a1a2e;
    font-size: 1.2rem;
    padding: 1rem 2rem;
    margin-top: 1rem;
    width: 100%;
}

.start-btn:hover {
    background: #45b392;
    box-shadow: 0 0 20px rgba(78, 204, 163, 0.6);
}

/* Game-specific styles */
.particle {
    position: absolute;
    pointer-events: none;
    animation: fadeOut 0.5s ease-out forwards;
}

@keyframes fadeOut {
    from {
        opacity: 1;
        transform: scale(1);
    }
    to {
        opacity: 0;
        transform: scale(0);
    }
}

.sparkle {
    position: absolute;
    pointer-events: none;
    animation: sparkle 1s ease-out forwards;
}

@keyframes sparkle {
    0% {
        opacity: 1;
        transform: scale(0) rotate(0deg);
    }
    50% {
        opacity: 1;
        transform: scale(1) rotate(180deg);
    }
    100% {
        opacity: 0;
        transform: scale(0) rotate(360deg);
    }
}

/* Settings Icon and Menu */
.settings-icon {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    cursor: pointer;
    background: rgba(15, 23, 42, 0.8);
    padding: 12px;
    border-radius: 15px;
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.settings-icon:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
    border-color: rgba(96, 165, 250, 0.3);
}

.settings-icon i {
    font-size: 1.8rem;
    color: #60a5fa;
    transition: transform 0.3s ease;
}

.settings-icon:hover i {
    transform: rotate(90deg);
}

.settings-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background: rgba(15, 23, 42, 0.95);
    padding: 25px;
    border-radius: 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    width: 350px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    margin-top: 10px;
    border: 1px solid rgba(96, 165, 250, 0.2);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.settings-icon:hover .settings-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.settings-menu h2 {
    margin-bottom: 20px;
    color: #60a5fa;
    font-size: 1.8rem;
    text-align: center;
    width: 100%;
}

.settings-menu h3 {
    margin-bottom: 15px;
    color: #fff;
    font-size: 1.2rem;
    width: 100%;
    text-align: center;
}

.difficulty-options, .mode-options {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 20px;
    width: 100%;
}

.difficulty-options button, .mode-options button {
    min-width: 100px;
    text-align: center;
    justify-content: center;
}

.attribution {
    display: block;
    text-align: center;
    color: #60a5fa;
    text-decoration: none;
    font-size: 0.9rem;
    margin-top: 20px;
    padding: 10px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.05);
    transition: all 0.3s ease;
    width: 100%;
}

.attribution:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.attribution i {
    color: #f87171;
    margin-left: 5px;
    font-size: 0.8em;
    animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {
    0% { transform: scale(1); }
    14% { transform: scale(1.3); }
    28% { transform: scale(1); }
    42% { transform: scale(1.3); }
    70% { transform: scale(1); }
}

.restart-btn {
    background: #60a5fa;
    color: #0f172a;
    font-size: 1.2rem;
    padding: 15px 30px;
    width: 100%;
    border: none;
    border-radius: 15px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
    margin-top: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.restart-btn i {
    font-size: 1.2rem;
    transition: transform 0.3s ease;
    opacity: 1;
    color: #0f172a;
}

.restart-btn:hover {
    background: #3b82f6;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.4);
}

.restart-btn:hover i {
    transform: rotate(180deg);
}

/* Game Stats Display */
.game-stats {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(15, 23, 42, 0.8);
    padding: 15px 30px;
    border-radius: 20px;
    display: flex;
    gap: 25px;
    align-items: center;
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    z-index: 100;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #fff;
    font-size: 1.1rem;
}

.stat-item.lives {
    display: none; /* Hide lives by default */
}

.stat-item.lives.show {
    display: flex; /* Show lives only when needed */
}

.stat-item i {
    font-size: 1.4rem;
    background: rgba(255, 255, 255, 0.1);
    padding: 8px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.stat-item.lives i {
    color: #f87171;
    background: rgba(248, 113, 113, 0.1);
}

.stat-item.score {
    font-size: 1.4rem;
    font-weight: 600;
    color: #60a5fa;
}

.stat-item.level i {
    color: #fbbf24;
    background: rgba(251, 191, 36, 0.1);
}

.stat-item.timer i {
    color: #34d399;
    background: rgba(52, 211, 153, 0.1);
}

.stat-item.timer .stat-value {
    color: #34d399;
    font-family: 'JetBrains Mono', monospace;
    font-weight: 600;
    font-size: 1.2rem;
}

.stat-item.timer.warning .stat-value {
    color: #f87171;
    animation: pulse 1s infinite;
}

.difficulty-info, .mode-info {
    margin-top: 10px;
    font-size: 0.9rem;
    color: #fff;
    opacity: 0.8;
    text-align: center;
}

.info-text {
    display: none;
    padding: 8px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.1);
    margin: 5px 0;
    transition: all 0.3s ease;
}

.difficulty-btn.active + .difficulty-info .info-text,
.mode-btn.active + .mode-info .info-text {
    display: block;
}

/* Death Screen */
.death-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.death-screen.show {
    display: flex;
    animation: fadeIn 0.5s ease forwards;
}

.death-content {
    background: rgba(30, 41, 59, 0.8);
    padding: 40px;
    border-radius: 30px;
    text-align: center;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    transform: scale(0.9);
    animation: popIn 0.5s ease forwards;
    max-width: 90%;
    width: 500px;
    border: 1px solid rgba(96, 165, 250, 0.2);
}

.death-content h2 {
    color: #f87171;
    font-size: 3rem;
    margin-bottom: 30px;
    text-shadow: 0 0 20px rgba(248, 113, 113, 0.5);
}

.final-stats {
    margin: 30px 0;
}

.stat-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin: 20px 0;
    font-size: 1.4rem;
    color: #fff;
    padding: 15px;
    border-radius: 15px;
    background: rgba(255, 255, 255, 0.05);
}

.stat-row i {
    font-size: 1.6rem;
    background: rgba(255, 255, 255, 0.1);
    padding: 10px;
    border-radius: 15px;
}

.stat-row .final-score {
    color: #60a5fa;
    font-weight: 600;
}

.stat-row .final-level {
    color: #fbbf24;
    font-weight: 600;
}

.stat-row .final-time {
    color: #34d399;
    font-weight: 600;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Point Gain Popup */
.point-gain-popup {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    padding: 20px 40px;
    border-radius: 20px;
    font-size: 1.8rem;
    font-weight: 600;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(52, 211, 153, 0.9);
    color: #064e3b;
}

.point-gain-popup.show {
    opacity: 1;
    visibility: visible;
    animation: popIn 0.5s ease forwards;
}

/* Life Loss Popup */
.life-loss-popup {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    padding: 20px 40px;
    border-radius: 20px;
    font-size: 1.8rem;
    font-weight: 600;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(248, 113, 113, 0.9);
    color: #7f1d1d;
}

.life-loss-popup.show {
    opacity: 1;
    visibility: visible;
    animation: popIn 0.5s ease forwards;
}

@keyframes popIn {
    0% {
        transform: scale(0.8);
        opacity: 0;
    }
    50% {
        transform: scale(1.1);
        opacity: 1;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.time-bonus-popup {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    background: rgba(15, 23, 42, 0.95);
    color: #fff;
    padding: 25px 40px;
    border-radius: 20px;
    font-size: 1.8rem;
    font-weight: 600;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 1000;
    text-align: center;
    border: 1px solid rgba(96, 165, 250, 0.3);
}

.time-bonus-popup.show {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
}

.time-bonus-popup .total-bonus {
    font-size: 3rem;
    margin-bottom: 15px;
    color: #60a5fa;
    text-shadow: 0 0 20px rgba(96, 165, 250, 0.3);
}

.time-bonus-popup .bonus-breakdown {
    font-size: 1.1rem;
    color: #94a3b8;
    margin-top: 15px;
    border-top: 1px solid rgba(96, 165, 250, 0.2);
    padding-top: 15px;
}

.time-bonus-popup .bonus-item {
    margin: 8px 0;
    display: flex;
    justify-content: space-between;
    gap: 20px;
    padding: 5px 10px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.05);
}

.time-bonus-popup .bonus-item:before {
    content: '•';
    color: #60a5fa;
    margin-right: 10px;
}

/* Animations */
@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.5; }
    100% { opacity: 1; }
}

@keyframes popIn {
    0% {
        transform: scale(0.8);
        opacity: 0;
    }
    50% {
        transform: scale(1.1);
        opacity: 1;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.notification-banner {
    position: fixed;
    top: 120px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
    width: 300px;
    pointer-events: none;
}

.notification-content {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(96, 165, 250, 0.2);
    border-radius: 12px;
    padding: 12px 20px;
    color: white;
    font-size: 1.1rem;
    text-align: center;
    opacity: 0;
    transform: translateY(-20px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.notification-content.show {
    opacity: 1;
    transform: translateY(0);
}

.notification-content .score-change {
    color: #4ecca3;
    font-weight: 600;
}

.notification-content .lives-change {
    color: #ff6b6b;
    font-weight: 600;
}

.notification-content .bonus-change {
    color: #ffd93d;
    font-weight: 600;
}

.game-info {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid rgba(96, 165, 250, 0.2);
}

.mode-badge, .difficulty-badge {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    border-radius: 15px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(8px);
    transition: all 0.3s ease;
}

.mode-badge {
    background: linear-gradient(135deg, rgba(96, 165, 250, 0.2), rgba(96, 165, 250, 0.1));
    border: 1px solid rgba(96, 165, 250, 0.3);
}

.difficulty-badge {
    background: linear-gradient(135deg, rgba(251, 191, 36, 0.2), rgba(251, 191, 36, 0.1));
    border: 1px solid rgba(251, 191, 36, 0.3);
}

.mode-badge i, .difficulty-badge i {
    font-size: 1.2rem;
}

.mode-badge i {
    color: #60a5fa;
}

.difficulty-badge i {
    color: #fbbf24;
}

.mode-badge .mode-text, .difficulty-badge .difficulty-text {
    font-size: 1.1rem;
    font-weight: 600;
    color: #fff;
    text-transform: capitalize;
}

.mode-badge:hover, .difficulty-badge:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.mode-badge:hover {
    background: linear-gradient(135deg, rgba(96, 165, 250, 0.3), rgba(96, 165, 250, 0.2));
}

.difficulty-badge:hover {
    background: linear-gradient(135deg, rgba(251, 191, 36, 0.3), rgba(251, 191, 36, 0.2));
}