:root {
    /* Warm, calming color palette */
    --cream: #FBF8F3;
    --warm-beige: #E8DDD0;
    --terracotta: #D4A287;
    --soft-rust: #C18B6F;
    --deep-clay: #9B6B5A;
    --sage: #B5B39A;
    --soft-olive: #A8A688;
    --warm-grey: #A8998E;
    --dark-brown: #1B211A;
    --off-white: #F5F2ED;
    
    /* Typography */
    --font-display: 'Cormorant', serif;
    --font-body: 'Karla', sans-serif;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font-body);
    background: linear-gradient(135deg, var(--cream) 0%, var(--off-white) 50%, var(--warm-beige) 100%);
    color: var(--dark-brown);
    line-height: 1.6;
    min-height: 100vh;
    padding: var(--space-lg) var(--space-md);
    animation: fadeIn 0.8s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: var(--space-xl);
    animation: slideDown 0.8s ease-out 0.2s both;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 300;
    color: var(--dark-brown);
    margin-bottom: var(--space-xs);
    letter-spacing: 0.02em;
}

.subtitle {
    font-size: 1rem;
    color: var(--warm-grey);
    font-weight: 300;
    letter-spacing: 0.05em;
}

/* Input Section */
.input-section {
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
    border-radius: 24px;
    padding: var(--space-lg);
    margin-bottom: var(--space-lg);
    border: 1px solid rgba(212, 162, 135, 0.2);
    box-shadow: 0 8px 32px rgba(90, 74, 66, 0.08);
    animation: slideUp 0.8s ease-out 0.3s both;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.prompt-group {
    margin-bottom: var(--space-md);
}

.prompt-group:last-child {
    margin-bottom: 0;
}

.prompt-label {
    display: block;
    font-family: var(--font-display);
    font-size: 1.1rem;
    color: var(--dark-brown);
    margin-bottom: var(--space-xs);
    font-weight: 400;
}

.prompt-input {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--dark-brown);
    background: var(--cream);
    border: 2px solid transparent;
    border-radius: 12px;
    transition: var(--transition);
    outline: none;
}

.prompt-input::placeholder {
    color: var(--warm-grey);
    opacity: 0.6;
}

.prompt-input:focus {
    border-color: var(--terracotta);
    background: white;
    box-shadow: 0 4px 16px rgba(212, 162, 135, 0.15);
}

/* Style Selector */
.style-selector {
    margin-bottom: var(--space-lg);
    animation: slideUp 0.8s ease-out 0.4s both;
}

.section-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--dark-brown);
    margin-bottom: var(--space-md);
    text-align: center;
}

.style-options {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    justify-content: center;
}

.style-btn {
    padding: var(--space-sm) var(--space-md);
    font-family: var(--font-body);
    font-size: 0.9rem;
    color: var(--dark-brown);
    background: rgba(255, 255, 255, 0.6);
    border: 2px solid var(--warm-beige);
    border-radius: 24px;
    cursor: pointer;
    transition: var(--transition);
    backdrop-filter: blur(5px);
}

.style-btn:hover {
    background: var(--warm-beige);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(212, 162, 135, 0.2);
}

.style-btn.active {
    background: var(--terracotta);
    color: white;
    border-color: var(--terracotta);
}

/* Custom Colors Section */
.custom-colors-toggle {
    margin-top: var(--space-lg);
    text-align: center;
}

.toggle-colors-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-lg);
    font-family: var(--font-body);
    font-size: 0.9rem;
    color: var(--dark-brown);
    background: rgba(255, 255, 255, 0.6);
    border: 2px solid var(--warm-beige);
    border-radius: 24px;
    cursor: pointer;
    transition: var(--transition);
    backdrop-filter: blur(5px);
}

.toggle-colors-btn:hover {
    background: var(--warm-beige);
    transform: translateY(-2px);
}

.toggle-icon {
    width: 18px;
    height: 18px;
}

.color-pickers {
    margin-top: var(--space-lg);
    background: rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: var(--space-lg);
    border: 1px solid rgba(212, 162, 135, 0.2);
    max-height: 500px;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.color-pickers.hidden {
    max-height: 0;
    padding: 0;
    margin-top: 0;
    opacity: 0;
    pointer-events: none;
}

.color-instructions {
    text-align: center;
    font-size: 0.9rem;
    color: var(--warm-grey);
    margin-bottom: var(--space-md);
    font-style: italic;
}

.color-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.color-input-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
}

.color-input-group label {
    font-family: var(--font-body);
    font-size: 0.85rem;
    color: var(--dark-brown);
    font-weight: 400;
}

.color-picker {
    width: 60px;
    height: 60px;
    border: 3px solid var(--warm-beige);
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
    background: none;
}

.color-picker:hover {
    transform: scale(1.1);
    border-color: var(--terracotta);
    box-shadow: 0 4px 16px rgba(212, 162, 135, 0.3);
}

.color-picker::-webkit-color-swatch-wrapper {
    padding: 0;
    border-radius: 50%;
}

.color-picker::-webkit-color-swatch {
    border: none;
    border-radius: 50%;
}

.color-picker::-moz-color-swatch {
    border: none;
    border-radius: 50%;
}

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

.reset-colors-btn {
    padding: var(--space-sm) var(--space-lg);
    font-family: var(--font-body);
    font-size: 0.9rem;
    color: var(--dark-brown);
    background: rgba(255, 255, 255, 0.6);
    border: 2px solid var(--warm-beige);
    border-radius: 20px;
    cursor: pointer;
    transition: var(--transition);
}

.reset-colors-btn:hover {
    background: var(--warm-beige);
    transform: translateY(-2px);
}

/* Preview Section */
.preview-section {
    margin-bottom: var(--space-lg);
    animation: slideUp 0.8s ease-out 0.5s both;
}

.phone-frame {
    max-width: 390px;
    margin: 0 auto;
    background: var(--dark-brown);
    border-radius: 40px;
    padding: 12px;
    box-shadow: 0 20px 60px rgba(27, 33, 26, 0.3);
}

.wallpaper {
    width: 100%;
    aspect-ratio: 9/19.5;
    border-radius: 32px;
    overflow: hidden;
    position: relative;
    background: var(--cream);
}

/* Wallpaper Styles */
.gradient-style {
    background: linear-gradient(135deg, 
        var(--warm-beige) 0%, 
        var(--terracotta) 50%, 
        var(--soft-rust) 100%);
}

.blocks-style {
    background: var(--cream);
}

.organic-style {
    background: linear-gradient(135deg, var(--warm-beige) 0%, var(--off-white) 100%);
}

.dark-style {
    background: linear-gradient(135deg, 
        #1B211A 0%, 
        var(--deep-clay) 50%, 
        #2a2f28 100%);
}

.minimal-style {
    background: var(--off-white);
    position: relative;
}

/* Very visible paper texture - simple repeated pattern */
.minimal-style::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 3px,
            rgba(212, 162, 135, 0.15) 3px,
            rgba(212, 162, 135, 0.15) 4px,
            transparent 4px,
            transparent 8px,
            rgba(181, 179, 154, 0.12) 8px,
            rgba(181, 179, 154, 0.12) 9px
        ),
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 3px,
            rgba(193, 139, 111, 0.12) 3px,
            rgba(193, 139, 111, 0.12) 4px,
            transparent 4px,
            transparent 7px,
            rgba(168, 166, 136, 0.1) 7px,
            rgba(168, 166, 136, 0.1) 8px
        );
    opacity: 1;
}

/* Add organic spots/stains */
.minimal-style::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 15% 25%, rgba(212, 162, 135, 0.2) 0%, transparent 8%),
        radial-gradient(circle at 85% 75%, rgba(181, 179, 154, 0.18) 0%, transparent 10%),
        radial-gradient(circle at 40% 80%, rgba(193, 139, 111, 0.15) 0%, transparent 7%),
        radial-gradient(circle at 70% 30%, rgba(168, 166, 136, 0.15) 0%, transparent 8%),
        radial-gradient(circle at 25% 60%, rgba(212, 162, 135, 0.12) 0%, transparent 6%),
        radial-gradient(circle at 90% 45%, rgba(181, 179, 154, 0.12) 0%, transparent 6%);
    opacity: 1;
    pointer-events: none;
}

/* Text elements in wallpaper */
.wallpaper-text {
    position: absolute;
    font-family: var(--font-body);
    font-weight: 300;
    letter-spacing: 0.02em;
    word-wrap: break-word;
    hyphens: auto;
}

/* Action Section */
.action-section {
    text-align: center;
    animation: slideUp 0.8s ease-out 0.6s both;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    font-family: var(--font-body);
    font-size: 1.1rem;
    font-weight: 400;
    color: white;
    background: linear-gradient(135deg, var(--terracotta) 0%, var(--soft-rust) 100%);
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 8px 24px rgba(212, 162, 135, 0.3);
    letter-spacing: 0.05em;
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(212, 162, 135, 0.4);
}

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

.btn-icon {
    width: 20px;
    height: 20px;
}

.download-subtext {
    margin-top: var(--space-md);
    font-size: 0.9rem;
    color: var(--warm-grey);
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

/* Download Instructions */
.instructions-box {
    margin-top: var(--space-xl);
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: var(--space-lg);
    border: 1px solid rgba(212, 162, 135, 0.2);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
    text-align: left;
}

.instructions-title {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 400;
    color: var(--dark-brown);
    margin-bottom: var(--space-md);
    text-align: center;
}

.instructions-list {
    list-style-type: disc;
    list-style-position: outside;
    padding-left: var(--space-lg);
    margin: 0;
}

.instructions-list li {
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--dark-brown);
    line-height: 1.8;
    margin-bottom: var(--space-sm);
}

.instructions-list li:last-child {
    margin-bottom: 0;
}

.instructions-list strong {
    font-weight: 500;
    color: var(--terracotta);
}

/* Privacy Notice */
.privacy-notice {
    margin-top: var(--space-xl);
    font-family: var(--font-body);
    font-size: 0.9rem;
    color: var(--warm-grey);
    font-style: italic;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

/* Responsive Design */
@media (max-width: 768px) {
    body {
        padding: var(--space-md) var(--space-sm);
    }
    
    .title {
        font-size: 2rem;
    }
    
    .input-section {
        padding: var(--space-md);
    }
    
    .phone-frame {
        max-width: 100%;
    }
}

/* Loading state */
.downloading {
    pointer-events: none;
    opacity: 0.7;
}

.downloading::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
}