:root {
    --bg-color: #0f0f0f;
    --card-bg: #1e1e1e;
    --accent-color: #ff6b00;
    /* Sytě oranžová dle zadání */
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --border-color: #333333;
    --code-bg: #121212;
    --step-bg: #2a2a2a;
    --step-text: #3d8bff;
    /* Modrá pro čísla kroků jako na obrázku */
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    padding-bottom: 50px;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    padding: 60px 0 40px;
    text-align: center;
}

header h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: -1px;
}

header .subtitle {
    color: var(--text-secondary);
    font-size: 1.2rem;
}

/* Card Styles */
.card {
    background-color: var(--card-bg);
    border-radius: 16px;
    margin-bottom: 30px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-5px);
    border-color: #444;
}

.card-header {
    padding: 24px 30px;
    display: flex;
    align-items: center;
    gap: 15px;
    border-bottom: 1px solid var(--border-color);
}

.step-num {
    background-color: rgba(61, 139, 255, 0.1);
    color: var(--step-text);
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
}

.card-header h2 {
    font-size: 1.4rem;
    font-weight: 600;
}

.card-content {
    padding: 30px;
}

.card-content p {
    margin-bottom: 20px;
    color: #e0e0e0;
}

/* List Styles */
ul,
ol {
    margin-left: 20px;
    margin-bottom: 20px;
}

li {
    margin-bottom: 10px;
}

/* Prompt Box */
.prompt-box {
    background-color: var(--code-bg);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    margin: 15px 0;
}

.prompt-header {
    padding: 10px 15px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.prompt-box pre {
    padding: 20px;
    overflow-x: auto;
    font-family: 'Courier New', Courier, monospace;
    font-size: 1rem;
    color: #d1d1d1;
    white-space: pre-wrap;
    word-break: break-word;
}

.copy-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1.1rem;
    padding: 5px;
    border-radius: 4px;
    transition: var(--transition);
}

.copy-btn:hover {
    color: var(--text-primary);
    background-color: rgba(255, 255, 255, 0.1);
}

.copy-btn.copied {
    color: #4caf50;
}

/* Highlight Box */
.highlight-box {
    background-color: rgba(255, 107, 0, 0.05);
    border-left: 4px solid var(--accent-color);
    padding: 20px;
    border-radius: 4px 12px 12px 4px;
    margin: 20px 0;
}

.highlight-box h4 {
    margin-bottom: 15px;
    color: var(--accent-color);
}

/* Examples */
.example-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.example-item {
    padding: 20px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.example-item.bad {
    background-color: rgba(244, 67, 54, 0.05);
    border-color: rgba(244, 67, 54, 0.2);
}

.example-item.good {
    background-color: rgba(76, 175, 80, 0.05);
    border-color: rgba(76, 175, 80, 0.2);
}

.example-item h4 {
    margin-bottom: 10px;
}

.code-snippet {
    font-family: monospace;
    color: #ff9800;
    font-size: 1.1rem;
    margin-bottom: 10px;
}

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


/* Download Section */
.download-section {
    margin: 20px 0;
}

.download-card {
    display: flex;
    align-items: center;
    background-color: #252525;
    padding: 20px;
    border-radius: 12px;
    gap: 20px;
    border: 1px solid var(--border-color);
}

.download-card i.fa-file-powerpoint {
    font-size: 2.5rem;
    color: #d24726;
}

.download-info {
    flex-grow: 1;
}

.file-name {
    display: block;
    font-weight: 600;
    font-size: 1.1rem;
}

.file-desc {
    display: block;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.btn-download {
    background-color: var(--accent-color);
    color: white;
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition);
}

.btn-download:hover {
    background-color: #e65c00;
    transform: scale(1.05);
}

/* Image Styles */
.image-box {
    background-color: #121212;
    padding: 10px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    text-align: center;
}

.responsive-img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

.img-caption {
    margin-top: 10px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-style: italic;
}

.mt-20 {
    margin-top: 20px;
}

footer {
    text-align: center;
    padding: 40px 0;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

@media (max-width: 600px) {
    header h1 {
        font-size: 2rem;
    }

    .card-header {
        padding: 20px;
    }

    .card-content {
        padding: 20px;
    }

    .download-card {
        flex-direction: column;
        text-align: center;
    }
}