:root {
    --bg-color: #0d0e15;
    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    --accent-1: #6366f1;
    --accent-2: #a855f7;
    --glass-bg: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --card-shadow: 0 20px 40px -15px rgba(0,0,0,0.5);
    --radius: 16px;
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    background-image: 
        radial-gradient(circle at 15% 50%, rgba(99, 102, 241, 0.15), transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(168, 85, 247, 0.15), transparent 25%);
    background-attachment: fixed;
    min-height: 100vh;
    line-height: 1.6;
}

/* Glassmorphism Navigation */
.glass-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    padding: 1rem 2rem;
}

.nav-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 800;
    text-decoration: none;
}

.logo span {
    background: linear-gradient(to right, var(--accent-1), var(--accent-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.5px;
}

.logo-img {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    object-fit: cover;
    box-shadow: 0 0 15px rgba(99, 102, 241, 0.4);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), filter 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.logo:hover .logo-img {
    transform: scale(1.15) rotate(8deg);
    filter: brightness(1.1) drop-shadow(0 0 8px rgba(168, 85, 247, 0.6));
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 30px;
    font-weight: 600;
    font-family: 'Outfit', sans-serif;
    text-decoration: none;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(168, 85, 247, 0.5);
}

.btn-secondary {
    background: #1e293b;
    color: white;
    border: 1px solid var(--glass-border);
    padding: 0.75rem 1.5rem;
    border-radius: 30px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-secondary:hover {
    background: #334155;
    transform: translateY(-2px);
}

.container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 2rem;
}

/* Home Grid */
.book-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.book-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 1rem;
    cursor: pointer;
    text-decoration: none;
    color: white;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--card-shadow);
    display: flex;
    flex-direction: column;
}

.book-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 30px 60px -15px rgba(0,0,0,0.7), 0 0 20px rgba(99, 102, 241, 0.2);
    border-color: rgba(255,255,255,0.3);
}

.book-cover {
    width: 100%;
    aspect-ratio: 3/4;
    border-radius: 8px;
    object-fit: cover;
    background: #1e293b;
    margin-bottom: 1rem;
}

.book-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Wizard / Forms */
.wizard-container {
    max-width: 800px;
    margin: 0 auto;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 2.5rem;
    backdrop-filter: blur(16px);
    transition: max-width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.wizard-container.wide {
    max-width: 1100px;
}

.wizard-step {
    display: none;
    animation: fadeIn 0.4s ease-out;
}

.wizard-step.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.form-control {
    width: 100%;
    background: rgba(0,0,0,0.2);
    border: 1px solid var(--glass-border);
    color: white;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-1);
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

/* Character List */
.character-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.character-card {
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--glass-border);
    padding: 1rem;
    border-radius: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.character-info h4 {
    margin-bottom: 0.25rem;
    color: var(--accent-2);
}

.character-info p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Loader */
.loader {
    border: 4px solid rgba(255,255,255,0.1);
    border-top: 4px solid var(--accent-1);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 2rem auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.step-header {
    margin-bottom: 2rem;
    text-align: center;
}

.step-header h2 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.wizard-actions {
    display: flex;
    justify-content: space-between;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--glass-border);
}

/* Image Grid for generation */
.generation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
}

.gen-card {
    aspect-ratio: 3/4;
    background: rgba(0,0,0,0.3);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--glass-border);
    position: relative;
    overflow: hidden;
}

.gen-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.status-badge {
    position: absolute;
    bottom: 8px;
    right: 8px;
    background: rgba(0,0,0,0.6);
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 0.8rem;
    backdrop-filter: blur(4px);
}

/* Modal Overlay */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 2rem;
    max-width: 400px;
    width: 90%;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    text-align: center;
}

.modal-content h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.modal-content p {
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
}

.modal-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
}