:root {
    --primary: #A3F12E;
    --primary-hover: #b8ff3d;
    --background: #0a0a0a;
    --surface: #1a1a1a;
    --surface-border: #2a2a2a;
    --red-accent: #EF4444;
    --yellow-accent: #FFD700;
    --text-primary: #ffffff;
    --text-secondary: #cccccc;
    --text-muted: #666666;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 50px;
}

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

body {
    font-family: 'Urbanist', sans-serif;
    background: var(--background);
    color: var(--text-primary);
    min-height: 100vh;
    padding: 40px 20px;
}

.container { max-width: 1400px; margin: 0 auto; }

.header { text-align: center; margin-bottom: 40px; }
.header h1 {
    font-size: 48px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--primary-hover));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.header p { color: var(--text-secondary); margin-top: 10px; font-size: 18px; }

.card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 28px;
    margin-bottom: 24px;
}

.card h2 { font-size: 28px; font-weight: 700; margin-bottom: 24px; }

.slide-item {
    background: var(--background);
    border: 2px solid var(--surface-border);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 20px;
}

.slide-item:hover { border-color: var(--primary); }

.slide-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.slide-type {
    display: flex;
    align-items: center;
    gap: 12px;
}

.slide-type-badge {
    background: var(--primary);
    color: var(--background);
    padding: 6px 16px;
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 600;
}


.form-group { margin-bottom: 20px; }
.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    background: var(--surface);
    border: 2px solid var(--surface-border);
    border-radius: var(--radius-md);
    padding: 14px 16px;
    color: var(--text-primary);
    font-size: 15px;
    font-family: 'Urbanist', sans-serif;
}

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

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.image-upload {
    border: 3px dashed var(--surface-border);
    border-radius: var(--radius-lg);
    padding: 40px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
    background: var(--surface);
}

.image-upload:hover {
    border-color: var(--primary);
    background: var(--background);
}

.image-upload.has-image {
    padding: 0;
    border-style: solid;
    border-color: var(--primary);
    overflow: hidden;
}

.image-upload img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.upload-icon { font-size: 40px; margin-bottom: 12px; }
.upload-text { color: var(--text-secondary); font-weight: 500; }


.btn {
    padding: 14px 28px;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 15px;
    border: none;
    cursor: pointer;
    transition: all 0.3s;
    font-family: 'Urbanist', sans-serif;
}

.btn-primary {
    background: var(--primary);
    color: var(--background);
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(163, 241, 46, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--surface-border);
}

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.btn-red {
    background: var(--red-accent);
    color: white;
    padding: 10px 20px;
    font-size: 14px;
}

.btn-red:hover { background: #ff5555; }

.add-slide-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin: 24px 0;
}

.btn-generate {
    width: 100%;
    padding: 20px;
    font-size: 20px;
    font-weight: 700;
    margin-top: 20px;
}

.loading { display: none; text-align: center; padding: 60px; }
.loading.active { display: block; }

.spinner {
    border: 4px solid var(--surface-border);
    border-top: 4px solid var(--primary);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

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

.results { display: none; }
.results.active { display: block; }

.result-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.result-item {
    background: var(--background);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 2px solid var(--surface-border);
}

.result-item:hover { border-color: var(--primary); }
.result-item img { width: 100%; display: block; }
.result-info { padding: 16px; }
.result-info h3 { font-size: 16px; margin-bottom: 12px; }

input[type="file"] { display: none; }
input[type="color"] { width: 50px; height: 40px; padding: 0; cursor: pointer; }

@media (max-width: 768px) {
    .form-row { grid-template-columns: 1fr; }
    .add-slide-buttons { flex-direction: column; }
    .header h1 { font-size: 32px; }
}