:root {
    --color-paper: #f9f6f0;
    --color-paper-dark: #eee8db;
    --color-text-main: #4a4238;
    --color-text-muted: #8b7d6b;
    --color-accent-pink: #d99c9c;
    --color-accent-green: #6c7a65;
    
    --font-serif: 'Cormorant Garamond', serif;
    --font-sans: 'Inter', sans-serif;
    
    --transition-slow: 1.5s ease-in-out;
    --transition-normal: 0.6s ease-in-out;
}

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

body, html {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: var(--color-paper);
    background-image: url('../background.png');
    background-size: cover;
    background-position: center;
    color: var(--color-text-main);
    font-family: var(--font-sans);
}

/* Paper Texture overlay */
body::before {
    display: none;
}

.elegant-serif {
    font-family: var(--font-serif);
    font-weight: 400;
}

.elegant-serif.italic {
    font-style: italic;
}

.clean-sans {
    font-family: var(--font-sans);
    font-weight: 300;
    line-height: 1.6;
}

button {
    background: none;
    border: none;
    cursor: pointer;
    font-family: var(--font-sans);
}

#app-container {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.scene {
    position: absolute;
    top: 0; left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-slow);
    z-index: 10;
}

.scene.active {
    opacity: 1;
    pointer-events: auto;
}

.hidden {
    display: none !important;
}

/* Canvas */
#petal-canvas {
    position: absolute;
    top: 0; left: 0;
    width: 100%;
    height: 100%;
    z-index: 5;
    pointer-events: none;
    transition: opacity 1.5s ease-in-out;
}

.canvas-hidden {
    opacity: 0 !important;
}

.scrapbook-paper-btn {
    background: #f9f6f0;
    border: 1px solid #d5c4a6;
    color: #4a433a;
    padding: 12px 25px;
    border-radius: 4px; /* Paper-like corners */
    font-size: 1.3rem;
    box-shadow: 
        2px 4px 10px rgba(0,0,0,0.1),
        inset 0 0 10px rgba(139, 126, 102, 0.05);
    transition: all 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
    cursor: pointer;
    font-family: var(--font-serif);
    font-style: italic;
    transform: rotate(-2deg); /* Slightly skewed like a pasted note */
}

.scrapbook-paper-btn:hover {
    transform: rotate(0deg) translateY(-3px) scale(1.05);
    box-shadow: 
        4px 8px 15px rgba(0,0,0,0.15),
        inset 0 0 10px rgba(139, 126, 102, 0.05);
    background: #fffcf5;
}

.scrapbook-panel {
    background: #f9f6f0;
    border: 1px solid #d5c4a6;
    border-radius: 4px;
    box-shadow: 
        2px 4px 10px rgba(0,0,0,0.1),
        inset 0 0 20px rgba(139, 126, 102, 0.03);
}

.scrapbook-card {
    background: #f9f6f0;
    border: 1px solid #d5c4a6;
    border-radius: 4px;
    box-shadow: 
        2px 4px 10px rgba(0,0,0,0.1),
        inset 0 0 20px rgba(139, 126, 102, 0.03);
    transition: all 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
    position: relative;
}

.scrapbook-card::before {
    content: '';
    position: absolute;
    top: -12px;
    left: 50%;
    margin-left: -35px;
    width: 70px;
    height: 25px;
    background: rgba(255, 255, 255, 0.4);
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    border: 1px solid rgba(0,0,0,0.05);
    transform: rotate(-3deg);
    z-index: 20;
    pointer-events: none;
}

.scrapbook-card:nth-child(even)::before {
    transform: rotate(4deg);
    background: rgba(255, 255, 255, 0.5);
}

.scrapbook-card:nth-child(odd) {
    transform: rotate(-1.5deg);
}

.scrapbook-card:nth-child(even) {
    transform: rotate(2deg);
}

.scrapbook-card:hover {
    transform: translateY(-5px) scale(1.02) rotate(0deg) !important;
    box-shadow: 
        4px 12px 20px rgba(0,0,0,0.12),
        inset 0 0 20px rgba(139, 126, 102, 0.03);
    background: #fffcf5;
    z-index: 10;
}