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

:root {
    --primary-color: #C93A3A;
    --primary-dark: #A82A2A;
    --primary-light: #E04A4A;
    --secondary-color: #8B2A2A;
    --background: #0a0a0a;
    --surface: #151515;
    --surface-light: #1f1f1f;
    --text-primary: #ffffff;
    --text-secondary: #e0e0e0;
    --text-muted: #a0a0a0;
    --success: #10b981;
    --border: #2a2a2a;
    --shadow: rgba(0, 0, 0, 0.5);
    --gradient: linear-gradient(135deg, #C93A3A 0%, #8B2A2A 100%);
    --gradient-primary: linear-gradient(135deg, #C93A3A 0%, #A82A2A 100%);
    --red-glow: rgba(201, 58, 58, 0.3);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
    background-image: 
        radial-gradient(at 0% 0%, rgba(201, 58, 58, 0.08) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(139, 42, 42, 0.08) 0px, transparent 50%);
}

.container {
    max-width: 900px;
    width: 100%;
    background: var(--surface);
    border-radius: 20px;
    box-shadow: 0 20px 60px var(--shadow);
    overflow: hidden;
    border: 1px solid var(--border);
}

.header {
    background: var(--gradient-primary);
    padding: 2.5rem 2.5rem;
    position: relative;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.logo-container {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.logo {
    height: 50px;
    width: auto;
    filter: brightness(0) invert(1);
    display: block;
}

.docker-logo {
    filter: brightness(0) invert(1);
    opacity: 0.95;
}

.title-section {
    flex: 1;
}

.main-title {
    font-size: 2rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}

.subtitle {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.85);
    font-weight: 400;
}

.main-content {
    padding: 2.5rem 2.5rem;
}

.configuration-section {
    max-width: 100%;
    width: 100%;
}

.section-title {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

.section-description {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.section-description {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
}

.steps-container {
    display: block;
    margin-bottom: 2rem;
    width: 100%;
    box-sizing: border-box;
    padding: 0;
}

.step-card {
    background: var(--surface-light);
    border-radius: 16px;
    padding: 2rem;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    width: 100%;
    display: block;
    box-sizing: border-box;
    margin: 0 0 2.5rem 0;
}

.step-card:last-child {
    margin-bottom: 0;
}

.step-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    border-color: var(--primary-color);
}

.step-header {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    margin-bottom: 1.75rem;
    width: 100%;
    box-sizing: border-box;
    position: relative;
    z-index: 2;
}

.step-title-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    min-width: 0;
    box-sizing: border-box;
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    background: var(--gradient-primary);
    color: white;
    border-radius: 10px;
    font-weight: 600;
    font-size: 1rem;
    flex-shrink: 0;
}

.step-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    line-height: 1.4;
}

.step-description {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.5;
    opacity: 0.8;
}

.code-block-container {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-top: 1rem;
}

pre {
    flex: 1;
    background: var(--background);
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid var(--border);
    margin: 0;
    overflow-x: auto;
    width: 100%;
    min-width: 0;
}

pre code {
    font-family: 'Fira Code', 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.9rem;
    color: var(--text-primary);
    line-height: 1.6;
    white-space: pre-wrap;
    display: block;
    word-break: break-word;
    overflow-wrap: break-word;
}

.copy-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1rem;
    background: var(--surface-light);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.2s ease;
    flex-shrink: 0;
    font-family: inherit;
    white-space: nowrap;
}

.copy-btn:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 6px 20px var(--red-glow);
}

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

.copy-btn svg {
    width: 16px;
    height: 16px;
}

.copy-btn.copied {
    background: var(--success);
    border-color: var(--success);
    color: white;
}

.copy-btn.copied span::after {
    content: 'Copied!';
    margin-left: 0.5rem;
}

.status-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 1.25rem;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.15) 0%, rgba(16, 185, 129, 0.05) 100%);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: 14px;
    margin-top: 1.5rem;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.status-indicator:hover {
    transform: scale(1.02);
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.3);
}

.status-dot {
    width: 10px;
    height: 10px;
    background: var(--success);
    border-radius: 50%;
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.5);
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.1); }
}

.status-text {
    color: var(--success);
    font-weight: 500;
    font-size: 0.95rem;
}

.footer {
    background: var(--surface-light);
    padding: 1.75rem 2.5rem;
    text-align: center;
    border-top: 1px solid var(--border);
}

.footer p {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin: 0;
    font-weight: 400;
}

/* Responsive Design */
@media (max-width: 768px) {
    body {
        padding: 1rem;
    }

    .header {
        padding: 2rem 1.5rem;
    }
    
    .header-content {
        flex-direction: column;
        text-align: center;
        gap: 1.5rem;
    }
    
    .logo-container {
        order: -1;
        gap: 0.75rem;
    }
    
    .logo {
        height: 45px;
    }

    .main-title {
        font-size: 1.75rem;
    }
    
    .subtitle {
        font-size: 0.875rem;
    }
    
    .main-content {
        padding: 2rem 1.5rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .section-description {
        margin-bottom: 1.5rem;
    }
    
    .step-card {
        padding: 1.5rem;
        margin-bottom: 2rem;
    }
    
    .footer {
        padding: 1.5rem 1.5rem;
    }

    .main-content {
        padding: 2rem 1.5rem;
    }

    .steps-container {
        margin-bottom: 1.5rem;
    }

    .step-card {
        padding: 1.5rem;
        margin: 0 0 2rem 0;
    }
    
    .step-card:last-child {
        margin-bottom: 0;
    }

    .code-block-container {
        flex-direction: column;
        gap: 1rem;
    }
    
    pre {
        padding: 1.25rem;
    }

    .copy-btn {
        width: 100%;
        justify-content: center;
    }
    
    .step-header {
        gap: 1rem;
        margin-bottom: 1.25rem;
    }
}

@media (max-width: 480px) {
    .main-title {
        font-size: 1.75rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    pre code {
        font-size: 0.85rem;
    }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--surface);
}

::-webkit-scrollbar-thumb {
    background: var(--surface-light);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
    box-shadow: 0 0 8px var(--red-glow);
}