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

:root {
    /* Color Palette - Luxury Theme */
    --bg-primary: #0a0a0a;
    --bg-secondary: #151515;
    --bg-elevated: #1a1a1a;
    --border-primary: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.15);
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --text-muted: #6b6b6b;
    --accent-gold: #d4af37;
    --accent-gold-muted: rgba(212, 175, 55, 0.1);
    --shadow-soft: 0 4px 24px rgba(0, 0, 0, 0.4);
    --shadow-hover: 0 8px 32px rgba(0, 0, 0, 0.5);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-primary);
    min-height: 100vh;
    color: var(--text-primary);
    display: flex;
    flex-direction: column;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 300;
    letter-spacing: 0.02em;
}

h1 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 200;
    letter-spacing: 0.05em;
}

h2 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

h3 {
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
}

/* Container */
.container {
    flex: 1;
    padding: clamp(20px, 5vw, 60px) clamp(20px, 5vw, 40px);
    margin: 0 auto;
    width: 100%;
}

/* Screen Management */
.screen {
    display: none;
}

.screen.active {
    display: block;
    animation: fadeIn 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Header */
.header {
    text-align: center;
    margin-bottom: clamp(40px, 8vw, 80px);
    padding: 20px 0;
}

.header h1 {
    margin-bottom: 12px;
    text-transform: uppercase;
}

.header .subtitle {
    color: var(--text-muted);
    font-size: clamp(0.85rem, 2vw, 0.95rem);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

/* Tiles Grid */
.tiles {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: clamp(16px, 3vw, 24px);
    margin-bottom: 40px;
}

.tile {
    background: var(--bg-elevated);
    border: 1px solid var(--border-primary);
    border-radius: 2px;
    padding: clamp(40px, 6vw, 60px) clamp(20px, 4vw, 30px);
    text-align: center;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.tile::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--accent-gold);
    transform: scaleX(0);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.tile:hover {
    transform: translateY(-4px);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-hover);
}

.tile:hover::before {
    transform: scaleX(1);
}

.tile-icon {
    font-size: clamp(2.5rem, 5vw, 3rem);
    margin-bottom: 20px;
    opacity: 0.9;
}

.tile-title {
    font-size: clamp(1rem, 2vw, 1.1rem);
    font-weight: 300;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

/* Cards */
.card {
    background: var(--bg-elevated);
    border: 1px solid var(--border-primary);
    border-radius: 2px;
    padding: clamp(25px, 4vw, 40px);
    margin-bottom: 24px;
    transition: border-color 0.3s ease;
}

.card:hover {
    border-color: var(--border-hover);
}

.card-header {
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-primary);
}

.card-title {
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
    margin-bottom: 8px;
    font-weight: 300;
}

.card-subtitle {
    color: var(--text-muted);
    font-size: clamp(0.85rem, 1.5vw, 0.9rem);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

/* Progress Bar */
.progress-bar {
    height: 2px;
    background: var(--border-primary);
    border-radius: 0;
    margin-bottom: 30px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--accent-gold);
    transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Buttons */
.btn {
    width: 100%;
    padding: clamp(14px, 2.5vw, 18px);
    border: 1px solid var(--border-primary);
    border-radius: 2px;
    font-size: clamp(0.9rem, 1.8vw, 1rem);
    font-weight: 400;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: transparent;
    color: var(--text-primary);
}

.btn-primary {
    background: var(--accent-gold);
    border-color: var(--accent-gold);
    color: var(--bg-primary);
}

.btn-primary:hover {
    background: transparent;
    color: var(--accent-gold);
    transform: translateY(-2px);
    box-shadow: var(--shadow-soft);
}

.back-btn {
    background: transparent;
    border: 1px solid var(--border-primary);
    color: var(--text-primary);
    margin-bottom: 20px;
}

.back-btn:hover {
    border-color: var(--accent-gold);
    color: var(--accent-gold);
}

/* Option Grid */
.option-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: clamp(10px, 2vw, 16px);
    margin-bottom: 24px;
}

.option-btn {
    background: var(--bg-elevated);
    border: 1px solid var(--border-primary);
    border-radius: 2px;
    padding: clamp(18px, 3vw, 24px) clamp(12px, 2vw, 16px);
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: center;
    font-size: clamp(0.9rem, 1.8vw, 1rem);
    letter-spacing: 0.05em;
}

.option-btn:hover {
    background: var(--bg-secondary);
    border-color: var(--accent-gold);
    color: var(--accent-gold);
}

/* Input Groups */
.input-group {
    margin-bottom: 24px;
}

.input-group label {
    display: block;
    margin-bottom: 12px;
    font-weight: 300;
    font-size: clamp(0.9rem, 1.8vw, 0.95rem);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--text-secondary);
}

.input-group input,
.input-group textarea,
.input-group select {
    width: 100%;
    padding: clamp(12px, 2vw, 16px);
    border: 1px solid var(--border-primary);
    border-radius: 2px;
    background: var(--bg-elevated);
    color: var(--text-primary);
    font-size: clamp(0.9rem, 1.8vw, 1rem);
    font-family: inherit;
    transition: all 0.3s ease;
}

.input-group input:focus,
.input-group textarea:focus,
.input-group select:focus {
    outline: none;
    border-color: var(--accent-gold);
}

.input-group input::placeholder,
.input-group textarea::placeholder {
    color: var(--text-muted);
}

/* File Upload */
.file-upload {
    border: 1px dashed var(--border-primary);
    border-radius: 2px;
    padding: clamp(30px, 5vw, 50px);
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: 24px;
    background: var(--bg-elevated);
}

.file-upload:hover {
    border-color: var(--accent-gold);
    background: var(--bg-secondary);
}

.file-upload input {
    display: none;
}

/* Image Preview */
.image-preview {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 12px;
    margin-top: 20px;
}

.image-preview img {
    width: 100%;
    height: 100px;
    object-fit: cover;
    border-radius: 2px;
    border: 1px solid var(--border-primary);
    transition: all 0.3s ease;
}

.image-preview img:hover {
    border-color: var(--accent-gold);
    transform: scale(1.05);
}

/* Footer */
.footer {
    position: sticky;
    bottom: 0;
    background: rgba(10, 10, 10, 0.98);
    backdrop-filter: blur(20px);
    padding: clamp(16px, 3vw, 24px);
    border-top: 1px solid var(--border-primary);
}

/* Responsive Typography */
@media (max-width: 768px) {
    body {
        font-size: 15px;
    }
    
    .tiles {
        grid-template-columns: 1fr;
    }
    
    .option-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }
}

@media (max-width: 480px) {
    .container {
        padding: 20px 16px;
    }
    
    .tile {
        padding: 30px 20px;
    }
    
    .card {
        padding: 20px;
    }
}