/* Helix - AI Code Review Assistant Styles */

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

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #a5b4fc;
    --secondary: #8b5cf6;
    --secondary-light: #c4b5fd;
    --success: #10b981;
    --success-light: #6ee7b7;
    --warning: #f59e0b;
    --warning-light: #fcd34d;
    --error: #ef4444;
    --error-light: #fca5a5;
    --info: #3b82f6;
    --info-light: #93c5fd;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-card: #ffffff;
    --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --bg-gradient-light: linear-gradient(135deg, #a5b4fc 0%, #c4b5fd 100%);
    
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --text-light: #cbd5e1;
    
    --border: #e2e8f0;
    --border-light: #f1f5f9;
    --border-dark: #cbd5e1;
    
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    
    --radius: 0.75rem;
    --radius-sm: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-gradient);
    background-attachment: fixed;
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 119, 198, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(120, 219, 255, 0.2) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
    animation: backgroundShift 20s ease-in-out infinite;
}

@keyframes backgroundShift {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.1); }
}

.app {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-icon {
    font-size: 2rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo h1 {
    font-size: 1.75rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    color: var(--text-muted);
    font-size: 0.875rem;
    font-weight: 500;
}

.status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--success);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Main Content */
.main {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.step {
    width: 100%;
    max-width: 1000px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-2xl);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.2);
    animation: slideInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateY(0);
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.step-content {
    padding: 3rem;
}

.step-header {
    text-align: center;
    margin-bottom: 3rem;
}

.step-header h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.step-header p {
    color: var(--text-secondary);
    font-size: 1.125rem;
}

.language-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--primary);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    margin-top: 1rem;
}

/* Language Grid */
.language-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.language-card {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border: 2px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    transform: translateY(0) scale(1);
}

.language-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    transform: scaleX(0);
    transition: var(--transition);
}

.language-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
    opacity: 0;
    transition: var(--transition);
}

.language-card:hover {
    border-color: var(--primary);
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-xl);
    background: rgba(255, 255, 255, 0.95);
}

.language-card:hover::before {
    transform: scaleX(1);
}

.language-card:hover::after {
    opacity: 1;
}

.language-card.selected {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
    transform: translateY(-4px) scale(1.05);
    box-shadow: var(--shadow-lg);
    animation: selectedPulse 2s ease-in-out infinite;
}

.language-card.selected::before {
    transform: scaleX(1);
}

.language-card.selected::after {
    opacity: 1;
}

@keyframes selectedPulse {
    0%, 100% { box-shadow: var(--shadow-lg); }
    50% { box-shadow: var(--shadow-xl), 0 0 0 4px rgba(99, 102, 241, 0.2); }
}

.language-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.language-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.language-card p {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Code Container */
.code-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 2rem;
}

.code-editor {
    background: var(--bg-secondary);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
}

.editor-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border);
}

.file-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.file-name {
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-weight: 600;
    color: var(--text-primary);
}

.line-count {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.editor-actions {
    display: flex;
    gap: 0.5rem;
}

#code-input {
    width: 100%;
    height: 400px;
    background: var(--bg-primary);
    border: none;
    padding: 1.5rem;
    color: var(--text-primary);
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.875rem;
    line-height: 1.6;
    resize: none;
    outline: none;
}

#code-input::placeholder {
    color: var(--text-muted);
}

.code-preview {
    background: var(--bg-secondary);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    padding: 1.5rem;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.875rem;
    line-height: 1.6;
    overflow-y: auto;
    max-height: 400px;
}

/* Context Container */
.context-container {
    margin-top: 2rem;
}

.context-options {
    margin-bottom: 2rem;
}

.context-options h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.option-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.option-btn {
    background: var(--bg-secondary);
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 1rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.875rem;
    font-weight: 500;
}

.option-btn:hover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.05);
}

.option-btn.selected {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
}

.context-input h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

#context-input {
    width: 100%;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 1rem;
    color: var(--text-primary);
    font-size: 0.875rem;
    resize: vertical;
    transition: border-color 0.3s ease;
}

#context-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* Analysis Container */
.analysis-container {
    text-align: center;
    padding: 4rem 2rem;
}

.analysis-header h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.analysis-header p {
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: 3rem;
}

.thinking-animation {
    margin-bottom: 3rem;
}

.helix-logo {
    font-size: 4rem;
    margin-bottom: 2rem;
    animation: rotate 3s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.thinking-dots {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.thinking-dots span {
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
    animation: bounce 1.4s ease-in-out infinite both;
}

.thinking-dots span:nth-child(1) { animation-delay: -0.32s; }
.thinking-dots span:nth-child(2) { animation-delay: -0.16s; }

@keyframes bounce {
    0%, 80%, 100% {
        transform: scale(0);
    }
    40% {
        transform: scale(1);
    }
}

.thinking-text {
    color: var(--text-secondary);
    font-size: 1rem;
}

.progress-bar {
    width: 100%;
    height: 4px;
    background: var(--bg-tertiary);
    border-radius: 2px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 2px;
    width: 0%;
    transition: width 0.3s ease;
}

/* Results Container */
.results-container {
    max-width: 1200px;
    margin: 0 auto;
}

.results-header {
    text-align: center;
    margin-bottom: 3rem;
}

.results-header h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.results-summary {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.summary-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
}

.summary-item.critical { background: rgba(239, 68, 68, 0.1); color: var(--error); }
.summary-item.high { background: rgba(245, 158, 11, 0.1); color: var(--warning); }
.summary-item.medium { background: rgba(59, 130, 246, 0.1); color: var(--info); }
.summary-item.low { background: rgba(16, 185, 129, 0.1); color: var(--success); }

.results-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 3rem;
}

.code-section {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.code-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border);
}

.code-tabs {
    display: flex;
    gap: 0.5rem;
}

.code-tab {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    border: 1px solid var(--border);
    background: var(--bg-primary);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.code-tab:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
    transform: translateY(-1px);
}

.code-tab.active {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.tab-icon {
    font-size: 1rem;
}

.tab-text {
    font-weight: 600;
}

.code-actions {
    display: flex;
    gap: 0.75rem;
}

.action-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.action-btn:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-color: var(--primary);
    transform: translateY(-1px);
}

.btn-icon {
    font-size: 0.875rem;
}

.btn-text {
    font-weight: 500;
}

.code-container {
    position: relative;
}

.code-block {
    padding: 1.5rem;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.875rem;
    line-height: 1.6;
    overflow-x: auto;
    max-height: 500px;
    overflow-y: auto;
    background: #1e293b;
    color: #e2e8f0;
}

.code-line {
    display: flex;
    align-items: center;
    padding: 0.25rem 0;
    transition: var(--transition-fast);
}

.code-line:hover {
    background: rgba(255, 255, 255, 0.05);
}

.code-line.has-issue {
    padding-left: 0.5rem;
    animation: errorPulse 2s ease-in-out infinite;
}

.code-line.has-issue.security {
    background: rgba(239, 68, 68, 0.1);
    border-left: 3px solid var(--error);
}

.code-line.has-issue.bug {
    background: rgba(139, 92, 246, 0.1);
    border-left: 3px solid var(--secondary);
}

.code-line.has-issue.performance {
    background: rgba(245, 158, 11, 0.1);
    border-left: 3px solid var(--warning);
}

.code-line.has-issue.style {
    background: rgba(59, 130, 246, 0.1);
    border-left: 3px solid var(--info);
}

.code-line.has-issue.optimization {
    background: rgba(16, 185, 129, 0.1);
    border-left: 3px solid var(--success);
}

@keyframes errorPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.line-number {
    color: var(--text-muted);
    min-width: 3rem;
    text-align: right;
    padding-right: 1rem;
    font-size: 0.75rem;
    user-select: none;
}

.line-content {
    flex: 1;
    white-space: pre-wrap;
}

.code-line.has-issue .line-number {
    color: var(--error);
    font-weight: 600;
}

.issues-section {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.issues-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border);
}

.issues-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.issues-count {
    background: var(--primary);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
}

.filter-tabs {
    display: flex;
    gap: 0.5rem;
}

.filter-tab {
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: var(--bg-primary);
    color: var(--text-secondary);
    font-size: 0.75rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-tab:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.filter-tab.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.issues-list {
    max-height: 500px;
    overflow-y: auto;
}

.issue-item {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
    transition: background-color 0.3s ease;
}

.issue-item:hover {
    background: var(--bg-tertiary);
}

.issue-item:last-child {
    border-bottom: none;
}

.issue-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.issue-type {
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.issue-type.security { background: rgba(239, 68, 68, 0.1); color: var(--error); }
.issue-type.performance { background: rgba(245, 158, 11, 0.1); color: var(--warning); }
.issue-type.style { background: rgba(59, 130, 246, 0.1); color: var(--info); }
.issue-type.bug { background: rgba(139, 92, 246, 0.1); color: var(--secondary); }
.issue-type.optimization { background: rgba(16, 185, 129, 0.1); color: var(--success); }

.issue-severity {
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

.issue-severity.critical { background: var(--error); color: white; }
.issue-severity.high { background: var(--warning); color: white; }
.issue-severity.medium { background: var(--info); color: white; }
.issue-severity.low { background: var(--success); color: white; }

.issue-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.issue-description {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.issue-line {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.25rem 0.75rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.75rem;
}

/* Chat Section */
.chat-section {
    background: var(--bg-secondary);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    overflow: hidden;
    margin-bottom: 2rem;
}

.chat-header {
    padding: 1.5rem;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border);
    text-align: center;
}

.chat-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.chat-header p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.chat-messages {
    padding: 1.5rem;
    max-height: 300px;
    overflow-y: auto;
}

.message {
    margin-bottom: 1rem;
    display: flex;
    gap: 0.75rem;
}

.message.user {
    flex-direction: row-reverse;
}

.message-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    flex-shrink: 0;
}

.message.user .message-avatar {
    background: var(--primary);
    color: white;
}

.message.assistant .message-avatar {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

.message-content {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    max-width: 80%;
    word-wrap: break-word;
}

.message.user .message-content {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.chat-input-container {
    padding: 1.5rem;
    border-top: 1px solid var(--border);
    background: var(--bg-tertiary);
}

.chat-input {
    display: flex;
    gap: 0.75rem;
}

.chat-input input {
    flex: 1;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    font-size: 0.875rem;
}

.chat-input input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.send-btn {
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.send-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

/* Buttons */
.btn-primary, .btn-secondary {
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-secondary {
    background: var(--bg-primary);
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

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

.step-actions {
    display: flex;
    justify-content: space-between;
    margin-top: 3rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header {
        padding: 1rem;
    }
    
    .main {
        padding: 1rem;
    }
    
    .step-content {
        padding: 2rem;
    }
    
    .language-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 1rem;
    }
    
    .code-container {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .results-content {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .step-actions {
        flex-direction: column;
        gap: 1rem;
    }
    
    .step-actions button {
        width: 100%;
        justify-content: center;
    }
}