/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Comic Sans MS', 'Chalkboard', 'Arial Rounded MT Bold', sans-serif;
    overflow: hidden;
    background: linear-gradient(135deg, #1a0a2e 0%, #16213e 50%, #0f0f23 100%);
    min-height: 100vh;
}

/* Game Container */
#game-container {
    width: 100vw;
    height: 100vh;
    position: relative;
    overflow: hidden;
}

.screen {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.hidden {
    display: none !important;
}

/* Stars Background */
#game-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        radial-gradient(2px 2px at 20px 30px, white, transparent),
        radial-gradient(2px 2px at 40px 70px, rgba(255,255,255,0.8), transparent),
        radial-gradient(3px 3px at 50px 160px, rgba(255,255,255,0.9), transparent),
        radial-gradient(2px 2px at 90px 40px, white, transparent),
        radial-gradient(2px 2px at 130px 80px, rgba(255,255,255,0.7), transparent),
        radial-gradient(3px 3px at 160px 120px, white, transparent),
        radial-gradient(2px 2px at 200px 50px, rgba(255,255,255,0.8), transparent),
        radial-gradient(2px 2px at 250px 90px, white, transparent),
        radial-gradient(3px 3px at 300px 150px, rgba(255,255,255,0.9), transparent),
        radial-gradient(2px 2px at 350px 30px, white, transparent),
        radial-gradient(2px 2px at 400px 100px, rgba(255,255,255,0.7), transparent),
        radial-gradient(3px 3px at 450px 180px, white, transparent),
        radial-gradient(2px 2px at 500px 60px, rgba(255,255,255,0.8), transparent),
        radial-gradient(2px 2px at 550px 140px, white, transparent),
        radial-gradient(3px 3px at 600px 80px, rgba(255,255,255,0.9), transparent);
    background-repeat: repeat;
    background-size: 600px 200px;
    animation: twinkle 4s ease-in-out infinite alternate;
    pointer-events: none;
    z-index: 0;
}

@keyframes twinkle {
    0% { opacity: 0.5; }
    100% { opacity: 1; }
}

/* Title Styles */
.title {
    font-size: clamp(2.5rem, 8vw, 5rem);
    color: #FFD700;
    text-shadow:
        3px 3px 0 #FF6B35,
        6px 6px 0 #FF4500,
        0 0 30px rgba(255, 215, 0, 0.5);
    letter-spacing: 4px;
    animation: bounce 2s ease-in-out infinite;
    z-index: 1;
}

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

/* Menu Rocket Animation */
.rocket-animation {
    margin: 30px 0;
    z-index: 1;
}

.menu-rocket {
    position: relative;
    width: 80px;
    height: 120px;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(-5deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
}

.rocket-body {
    position: absolute;
    width: 60px;
    height: 90px;
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a5a 50%, #d63031 100%);
    border-radius: 50% 50% 40% 40% / 60% 60% 40% 40%;
    left: 10px;
    top: 0;
    border: 3px solid #c0392b;
}

.rocket-body::before {
    content: '';
    position: absolute;
    width: 20px;
    height: 25px;
    background: linear-gradient(135deg, #ff6b6b 0%, #c0392b 100%);
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 50% 50% 0 0;
    border: 3px solid #c0392b;
    border-bottom: none;
}

.rocket-window {
    position: absolute;
    width: 35px;
    height: 35px;
    background: linear-gradient(135deg, #74b9ff 0%, #0984e3 100%);
    border-radius: 50%;
    top: 20px;
    left: 22px;
    border: 4px solid #2d3436;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
}

.eye {
    width: 8px;
    height: 10px;
    background: #2d3436;
    border-radius: 50%;
    animation: blink 3s ease-in-out infinite;
}

@keyframes blink {
    0%, 90%, 100% { transform: scaleY(1); }
    95% { transform: scaleY(0.1); }
}

.rocket-fin {
    position: absolute;
    width: 20px;
    height: 35px;
    background: linear-gradient(135deg, #fdcb6e 0%, #f39c12 100%);
    bottom: 5px;
    border: 2px solid #e67e22;
}

.left-fin {
    left: -5px;
    border-radius: 0 0 0 50%;
    transform: skewY(-20deg);
}

.right-fin {
    right: -5px;
    border-radius: 0 0 50% 0;
    transform: skewY(20deg);
}

.rocket-flame {
    position: absolute;
    width: 30px;
    height: 40px;
    bottom: -35px;
    left: 25px;
    background: linear-gradient(to bottom, #f39c12 0%, #e74c3c 40%, #e74c3c 60%, transparent 100%);
    border-radius: 50% 50% 50% 50% / 30% 30% 70% 70%;
    animation: flicker 0.1s ease-in-out infinite alternate;
}

@keyframes flicker {
    0% { transform: scaleY(1) scaleX(1); opacity: 1; }
    100% { transform: scaleY(1.2) scaleX(0.9); opacity: 0.8; }
}

/* Buttons */
.big-button {
    font-family: inherit;
    font-size: clamp(1.2rem, 4vw, 2rem);
    padding: 15px 40px;
    background: linear-gradient(135deg, #00b894 0%, #00a085 100%);
    color: white;
    border: 4px solid #009975;
    border-radius: 50px;
    cursor: pointer;
    text-shadow: 2px 2px 0 rgba(0,0,0,0.2);
    box-shadow:
        0 6px 0 #007a5e,
        0 8px 20px rgba(0,0,0,0.3);
    transition: all 0.1s ease;
    z-index: 1;
    margin-top: 20px;
}

.big-button:hover {
    transform: translateY(-2px);
    box-shadow:
        0 8px 0 #007a5e,
        0 10px 25px rgba(0,0,0,0.4);
}

.big-button:active {
    transform: translateY(4px);
    box-shadow:
        0 2px 0 #007a5e,
        0 4px 10px rgba(0,0,0,0.3);
}

/* Instructions */
.instructions {
    color: #dfe6e9;
    font-size: clamp(1rem, 3vw, 1.4rem);
    margin-top: 30px;
    z-index: 1;
}

.arrow-keys {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
    margin-top: 15px;
    z-index: 1;
}

.key-row {
    display: flex;
    gap: 5px;
}

.key {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #636e72 0%, #2d3436 100%);
    border: 3px solid #b2bec3;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    box-shadow: 0 4px 0 #1e272e;
}

.up-key {
    background: linear-gradient(135deg, #fd79a8 0%, #e84393 100%);
    border-color: #d63384;
    box-shadow: 0 4px 0 #a52a6a;
}

/* Game Screen */
#game-screen {
    background: transparent;
}

#game-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

/* UI Overlay */
#ui-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    z-index: 10;
    pointer-events: none;
}

#ui-overlay > * {
    pointer-events: auto;
}

#level-name {
    font-size: clamp(1.8rem, 6vw, 3rem);
    color: #FFD700;
    text-shadow:
        3px 3px 0 rgba(0,0,0,0.7),
        0 0 20px rgba(255, 215, 0, 0.5);
    font-weight: bold;
    background: rgba(0,0,0,0.4);
    padding: 10px 25px;
    border-radius: 15px;
    border: 3px solid rgba(255, 215, 0, 0.3);
    animation: levelPulse 2s ease-in-out infinite;
}

@keyframes levelPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

/* Level number badge */
#level-name::before {
    content: attr(data-level);
    display: inline-block;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    width: 35px;
    height: 35px;
    line-height: 35px;
    text-align: center;
    border-radius: 50%;
    margin-right: 12px;
    font-size: 1.2rem;
    vertical-align: middle;
}

#stats {
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: flex-end;
}

#speed-display, #fuel-display {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(0,0,0,0.5);
    padding: 8px 15px;
    border-radius: 20px;
    border: 2px solid rgba(255,255,255,0.2);
}

.stat-label {
    color: #dfe6e9;
    font-size: clamp(0.9rem, 2.5vw, 1.2rem);
}

.stat-value {
    color: #00ff88;
    font-size: clamp(1rem, 3vw, 1.4rem);
    font-weight: bold;
    min-width: 40px;
    text-align: right;
}

.stat-value.warning {
    color: #ffeaa7;
}

.stat-value.danger {
    color: #ff7675;
}

#fuel-bar {
    width: 100px;
    height: 20px;
    background: rgba(0,0,0,0.5);
    border-radius: 10px;
    overflow: hidden;
    border: 2px solid rgba(255,255,255,0.3);
}

#fuel-fill {
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, #00b894 0%, #55efc4 100%);
    transition: width 0.2s ease;
    border-radius: 8px;
}

#fuel-fill.low {
    background: linear-gradient(90deg, #fdcb6e 0%, #f39c12 100%);
}

#fuel-fill.critical {
    background: linear-gradient(90deg, #ff7675 0%, #d63031 100%);
    animation: pulse 0.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

.icon-button {
    font-size: 1.5rem;
    background: rgba(0,0,0,0.5);
    border: 2px solid rgba(255,255,255,0.2);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.icon-button:hover {
    background: rgba(0,0,0,0.7);
    transform: scale(1.1);
}

/* Message Overlay */
#message-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
}

#message-box {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 40px 60px;
    border-radius: 30px;
    text-align: center;
    border: 5px solid rgba(255,255,255,0.3);
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
    animation: popIn 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

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

#message-title {
    font-size: clamp(2rem, 6vw, 3.5rem);
    color: #FFD700;
    text-shadow: 3px 3px 0 rgba(0,0,0,0.3);
    margin-bottom: 15px;
}

#message-text {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    color: white;
    margin-bottom: 25px;
}

/* Confetti */
#confetti-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
    z-index: 99;
}

.confetti {
    position: absolute;
    width: 15px;
    height: 15px;
    top: -20px;
    animation: fall linear forwards;
}

@keyframes fall {
    to {
        transform: translateY(100vh) rotate(720deg);
    }
}

/* Win Screen */
#win-screen {
    background: linear-gradient(135deg, #1a0a2e 0%, #2d1b4e 50%, #1a0a2e 100%);
}

.rainbow-text {
    background: linear-gradient(90deg, #ff6b6b, #feca57, #48dbfb, #ff9ff3, #54a0ff);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: rainbow 3s linear infinite;
}

@keyframes rainbow {
    0% { background-position: 0% center; }
    100% { background-position: 200% center; }
}

.win-text {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    color: white;
    margin: 20px 0;
    z-index: 1;
}

.stars {
    font-size: clamp(3rem, 8vw, 5rem);
    animation: starPulse 1s ease-in-out infinite;
    z-index: 1;
}

@keyframes starPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

/* Level Select Label */
.level-select-label {
    color: #b2bec3;
    font-size: 1.1rem;
    margin-top: 25px;
    margin-bottom: 10px;
    z-index: 1;
}

/* Level Select Grid */
.level-select-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    max-width: 350px;
    margin: 0 auto;
    z-index: 1;
}

#start-level-select {
    margin-bottom: 20px;
}

.level-btn {
    font-family: inherit;
    font-size: 1.2rem;
    padding: 12px 8px;
    border-radius: 12px;
    border: 3px solid;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
}

.level-btn small {
    display: block;
    font-size: 0.65rem;
    margin-top: 2px;
    opacity: 0.9;
}

.level-btn.unlocked {
    background: linear-gradient(135deg, #00b894 0%, #00a085 100%);
    border-color: #009975;
    color: white;
    box-shadow: 0 4px 0 #007a5e;
}

.level-btn.unlocked:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 0 #007a5e;
}

.level-btn.unlocked:active {
    transform: translateY(2px);
    box-shadow: 0 2px 0 #007a5e;
}

.level-btn.current {
    background: linear-gradient(135deg, #f39c12 0%, #e67e22 100%);
    border-color: #d35400;
    box-shadow: 0 4px 0 #a04000, 0 0 15px rgba(243, 156, 18, 0.5);
    animation: currentPulse 1s ease-in-out infinite;
}

@keyframes currentPulse {
    0%, 100% { box-shadow: 0 4px 0 #a04000, 0 0 15px rgba(243, 156, 18, 0.5); }
    50% { box-shadow: 0 4px 0 #a04000, 0 0 25px rgba(243, 156, 18, 0.8); }
}

.level-btn.locked {
    background: linear-gradient(135deg, #636e72 0%, #2d3436 100%);
    border-color: #1e272e;
    color: #b2bec3;
    cursor: not-allowed;
    box-shadow: 0 4px 0 #1e272e;
}

/* Mobile responsiveness */
@media (max-width: 600px) {
    .big-button {
        padding: 12px 30px;
    }

    #ui-overlay {
        padding: 10px;
    }

    #message-box {
        padding: 25px 35px;
        margin: 20px;
    }

    .key {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }

    #level-name {
        font-size: 1.2rem;
        padding: 8px 15px;
    }

    #level-name::before {
        width: 28px;
        height: 28px;
        line-height: 28px;
        font-size: 1rem;
        margin-right: 8px;
    }

    .level-select-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 8px;
        max-width: 280px;
    }

    .level-btn {
        font-size: 1rem;
        padding: 10px 6px;
    }
}

/* ========================================
   MOBILE SUPPORT
   ======================================== */

/* Motion permission button */
.motion-btn {
    background: linear-gradient(135deg, #00b894 0%, #00cec9 100%);
    border: none;
    border-radius: 15px;
    color: white;
    padding: 15px 30px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    margin: 15px 0;
    box-shadow: 0 4px 15px rgba(0, 184, 148, 0.4);
    transition: all 0.3s ease;
}

.motion-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 184, 148, 0.5);
}

.motion-btn:active {
    transform: translateY(0);
}

.motion-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.motion-btn.enabled {
    background: linear-gradient(135deg, #27ae60 0%, #2ecc71 100%);
}

/* Prevent touch gestures on canvas */
#game-canvas {
    touch-action: none;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    user-select: none;
}

/* Mobile portrait mode */
@media (max-width: 480px) and (orientation: portrait) {
    .start-screen h1.title {
        font-size: clamp(1.8rem, 10vw, 2.5rem);
        margin-bottom: 10px;
    }

    .menu-rocket {
        transform: scale(0.7);
    }

    .rocket-animation {
        margin: 10px 0;
    }

    .big-button {
        padding: 12px 24px;
        font-size: 1rem;
        min-width: 140px;
    }

    .motion-btn {
        padding: 12px 20px;
        font-size: 1rem;
    }

    .level-select-label {
        font-size: 0.9rem;
        margin-top: 15px;
    }

    .level-select-grid {
        grid-template-columns: repeat(3, 50px);
        gap: 8px;
        max-width: 200px;
    }

    .level-btn {
        width: 50px;
        height: 50px;
        font-size: 0.9rem;
        padding: 8px 4px;
    }

    .level-btn small {
        font-size: 0.5rem;
    }

    .instructions {
        font-size: 0.9rem;
        padding: 0 15px;
        margin: 10px 0;
    }

    #ui-overlay {
        padding: 8px;
        font-size: 0.75rem;
    }

    #level-name {
        font-size: 0.9rem;
        padding: 6px 12px;
    }

    #level-name::before {
        width: 24px;
        height: 24px;
        line-height: 24px;
        font-size: 0.9rem;
        margin-right: 6px;
    }

    #stats {
        gap: 10px;
    }

    .stat-label {
        font-size: 0.7rem;
    }

    .stat-value {
        font-size: 1rem;
    }

    #fuel-bar {
        width: 60px;
        height: 12px;
    }

    .message-box {
        width: 95%;
        padding: 15px;
        margin: 10px;
    }

    .message-box h2 {
        font-size: 1.5rem;
    }

    .message-box p {
        font-size: 0.9rem;
    }

    /* Smaller level select in crash overlay */
    .message-box .level-select-grid {
        grid-template-columns: repeat(3, 45px);
        gap: 6px;
    }

    .message-box .level-btn {
        width: 45px;
        height: 45px;
        font-size: 0.85rem;
    }
}

/* Landscape mobile - similar to desktop but slightly smaller */
@media (max-height: 500px) and (orientation: landscape) {
    .start-screen h1.title {
        font-size: 2rem;
        margin-bottom: 5px;
    }

    .rocket-animation {
        transform: scale(0.6);
        margin: 5px 0;
    }

    .level-select-grid {
        grid-template-columns: repeat(5, 50px);
    }

    #ui-overlay {
        padding: 5px 10px;
    }
}

/* Hide arrow keys on all mobile */
@media (max-width: 768px) {
    .arrow-keys.desktop-only {
        display: none !important;
    }
}