/* Rainbow Painter - Styles */

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

:root {
    --red: #ff6b6b;
    --orange: #ffa94d;
    --yellow: #ffd43b;
    --green: #69db7c;
    --blue: #74c0fc;
    --indigo: #b197fc;
    --violet: #f783ac;
    
    --sky-top: #87CEEB;
    --sky-bottom: #E0F7FA;
    --cloud-white: rgba(255, 255, 255, 0.9);
}

body {
    font-family: 'Nunito', sans-serif;
    overflow: hidden;
    background: linear-gradient(180deg, var(--sky-top) 0%, var(--sky-bottom) 100%);
    color: #333;
    touch-action: none;
    user-select: none;
    -webkit-user-select: none;
}

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

/* Screens */
.screen {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.screen.active {
    opacity: 1;
    visibility: visible;
}

/* Start Screen */
#start-screen {
    background: linear-gradient(180deg, #87CEEB 0%, #B4E7F8 50%, #E8F5E9 100%);
}

.start-content {
    text-align: center;
    padding: 40px;
}

.rainbow-title {
    font-size: clamp(48px, 12vw, 96px);
    font-weight: 800;
    letter-spacing: 8px;
    margin-bottom: 16px;
    display: flex;
    justify-content: center;
    gap: 4px;
}

.letter {
    display: inline-block;
    animation: bounce 1s ease infinite;
    text-shadow: 2px 2px 0 rgba(0,0,0,0.1);
}

.letter:nth-child(1) { animation-delay: 0s; }
.letter:nth-child(2) { animation-delay: 0.1s; }
.letter:nth-child(3) { animation-delay: 0.2s; }
.letter:nth-child(4) { animation-delay: 0.3s; }
.letter:nth-child(5) { animation-delay: 0.4s; }
.letter:nth-child(6) { animation-delay: 0.5s; }
.letter:nth-child(7) { animation-delay: 0.6s; }

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

.subtitle {
    font-size: clamp(18px, 4vw, 28px);
    color: #555;
    margin-bottom: 40px;
    font-weight: 600;
}

.instructions {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 40px;
    max-width: 320px;
    margin-left: auto;
    margin-right: auto;
}

.instruction-item {
    display: flex;
    align-items: center;
    gap: 16px;
    background: rgba(255, 255, 255, 0.8);
    padding: 16px 24px;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.instruction-icon {
    font-size: 28px;
}

.rainbow-button {
    background: linear-gradient(135deg, var(--red), var(--orange), var(--yellow), var(--green), var(--blue), var(--indigo), var(--violet));
    background-size: 300% 300%;
    animation: gradient-shift 3s ease infinite;
    border: none;
    padding: 20px 48px;
    font-size: 24px;
    font-weight: 700;
    color: white;
    border-radius: 50px;
    cursor: pointer;
    font-family: inherit;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
}

.rainbow-button:hover {
    transform: scale(1.05);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
}

.rainbow-button:active {
    transform: scale(0.98);
}

@keyframes gradient-shift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Game Screen */
#game-screen {
    pointer-events: none;
    background: transparent;
}

#game-screen.active {
    pointer-events: auto;
}

/* HUD */
.hud {
    position: fixed;
    top: 20px;
    left: 20px;
    right: 20px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    z-index: 20;
    pointer-events: none;
}

.hud-item {
    background: rgba(255, 255, 255, 0.9);
    padding: 12px 20px;
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.breath-meter {
    min-width: 150px;
}

.breath-label, .color-label {
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #888;
    margin-bottom: 6px;
}

.breath-bar {
    width: 120px;
    height: 12px;
    background: #e9ecef;
    border-radius: 6px;
    overflow: hidden;
}

.breath-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--blue), var(--green));
    border-radius: 6px;
    transition: width 0.1s ease;
}

.color-indicator {
    text-align: center;
}

.next-color-box {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    margin: 0 auto;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    border: 3px solid white;
    transition: background-color 0.3s ease, transform 0.3s ease;
}

.next-color-box.pulse {
    animation: color-pulse 0.5s ease;
}

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

.rainbow-count {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 28px;
    font-weight: 700;
}

.rainbow-emoji {
    font-size: 32px;
}

/* Color progress dots */
.color-progress {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 20;
    background: rgba(255, 255, 255, 0.9);
    padding: 16px 24px;
    border-radius: 50px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.progress-dot {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    opacity: 0.3;
    transition: opacity 0.3s ease, transform 0.3s ease;
    border: 2px solid rgba(0, 0, 0, 0.1);
}

.progress-dot[data-color="red"] { background: var(--red); }
.progress-dot[data-color="orange"] { background: var(--orange); }
.progress-dot[data-color="yellow"] { background: var(--yellow); }
.progress-dot[data-color="green"] { background: var(--green); }
.progress-dot[data-color="blue"] { background: var(--blue); }
.progress-dot[data-color="indigo"] { background: var(--indigo); }
.progress-dot[data-color="violet"] { background: var(--violet); }

.progress-dot.filled {
    opacity: 1;
    transform: scale(1.2);
    box-shadow: 0 0 15px currentColor;
}

/* Breath prompt */
.breath-prompt {
    position: fixed;
    bottom: 120px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    z-index: 20;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.breath-prompt.hidden {
    opacity: 0;
}

.prompt-text {
    font-size: 20px;
    font-weight: 600;
    color: #555;
    margin-bottom: 8px;
}

.prompt-icon {
    font-size: 48px;
    animation: breathe-hint 2s ease-in-out infinite;
}

@keyframes breathe-hint {
    0%, 100% { transform: scale(1); opacity: 0.6; }
    50% { transform: scale(1.2); opacity: 1; }
}

/* Message display */
.message-display {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 30;
    background: rgba(255, 255, 255, 0.95);
    padding: 24px 48px;
    border-radius: 30px;
    font-size: 28px;
    font-weight: 700;
    color: #333;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.message-display.hidden {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.8);
    pointer-events: none;
}

/* End Screen */
#end-screen {
    background: linear-gradient(180deg, #E8F5E9 0%, #B4E7F8 50%, #F3E5F5 100%);
}

.end-content {
    text-align: center;
    padding: 40px;
}

.end-content h1 {
    font-size: clamp(36px, 8vw, 64px);
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--red), var(--violet));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.end-subtitle {
    font-size: 24px;
    color: #666;
    margin-bottom: 40px;
}

.final-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    margin-bottom: 40px;
}

.stat-item {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 56px;
    font-weight: 800;
    color: var(--blue);
}

.stat-label {
    font-size: 16px;
    color: #888;
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* Mobile adjustments */
@media (max-width: 600px) {
    .hud {
        flex-wrap: wrap;
        gap: 10px;
        justify-content: center;
    }
    
    .hud-item {
        padding: 10px 16px;
    }
    
    .breath-bar {
        width: 80px;
    }
    
    .color-progress {
        gap: 8px;
        padding: 12px 20px;
    }
    
    .progress-dot {
        width: 20px;
        height: 20px;
    }
    
    .instruction-item {
        padding: 12px 20px;
        font-size: 14px;
    }
    
    .rainbow-button {
        padding: 16px 36px;
        font-size: 20px;
    }
}