/* Reset e Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colors */
    --primary-blue: #1a365d;
    --secondary-orange: #ed8936;
    --success-green: #38a169;
    --error-red: #e53e3e;
    --neutral-light: #f7fafc;
    --neutral-medium: #718096;
    --neutral-dark: #2d3748;
    --white: #ffffff;
    --black: #000000;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 12px;
    --font-size-sm: 14px;
    --font-size-base: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    --font-size-2xl: 24px;
    --font-size-3xl: 32px;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Transitions */
    --transition-fast: 200ms ease-in-out;
    --transition-normal: 300ms ease-in-out;
    --transition-slow: 400ms ease-in-out;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--neutral-dark);
    background-color: var(--neutral-light);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Header */
.header {
    background: var(--white);
    border-bottom: 1px solid #e2e8f0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
    gap: var(--spacing-lg);
}

.logo {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--primary-blue);
    white-space: nowrap;
}

.progress-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex: 1;
    max-width: 400px;
}

.progress-bar {
    flex: 1;
    height: 8px;
    background: #e2e8f0;
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-blue), var(--secondary-orange));
    border-radius: var(--radius-sm);
    transition: width var(--transition-normal);
    width: 14.28%; /* 1/7 steps */
}

.progress-text {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--neutral-medium);
    white-space: nowrap;
}

.btn-reset {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: none;
    background: var(--neutral-light);
    color: var(--neutral-medium);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-reset:hover {
    background: #e2e8f0;
    color: var(--neutral-dark);
}

/* Main Layout */
.main {
    flex: 1;
    padding: var(--spacing-2xl) 0;
}

.app-layout {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: var(--spacing-2xl);
    min-height: 600px;
}

/* Step Content */
.step-content {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-md);
}

.step-header {
    margin-bottom: var(--spacing-2xl);
}

.step-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-sm);
}

.step-description {
    font-size: var(--font-size-lg);
    color: var(--neutral-medium);
}

.step-container {
    display: none;
}

.step-container.active {
    display: block;
    animation: fadeIn var(--transition-normal);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Options Grid */
.options-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.option-card {
    background: var(--white);
    border: 2px solid #e2e8f0;
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.option-card:hover {
    border-color: var(--primary-blue);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.option-card.selected {
    border-color: var(--primary-blue);
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
}

.option-card.selected .option-check {
    opacity: 1;
    transform: scale(1);
}

.option-image {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--neutral-light);
    display: flex;
    align-items: center;
    justify-content: center;
}

.option-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.option-content {
    text-align: center;
}

.option-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-sm);
}

.option-description {
    font-size: var(--font-size-sm);
    color: var(--neutral-medium);
    line-height: 1.5;
}

.option-check {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 32px;
    height: 32px;
    background: var(--success-green);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: scale(0.8);
    transition: all var(--transition-fast);
}

/* Step Subsections */
.step-subsections {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2xl);
}

.subsection {
    background: var(--neutral-light);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
}

.subsection-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-md);
}

.options-row {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.options-grid-small {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: var(--spacing-sm);
}

.option-chip {
    background: var(--white);
    border: 2px solid #e2e8f0;
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: center;
    font-size: var(--font-size-sm);
    font-weight: 500;
    white-space: nowrap;
}

.option-chip:hover {
    border-color: var(--primary-blue);
    background: #f0f9ff;
}

.option-chip.selected {
    border-color: var(--primary-blue);
    background: var(--primary-blue);
    color: var(--white);
}

/* Preview Panel */
.preview-panel {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 120px;
    height: fit-content;
    max-height: calc(100vh - 140px);
    overflow-y: auto;
}

.preview-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid #e2e8f0;
}

.preview-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--primary-blue);
}

.btn-toggle-preview {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: none;
    background: var(--neutral-light);
    color: var(--neutral-medium);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-toggle-preview:hover {
    background: #e2e8f0;
    color: var(--neutral-dark);
}

.preview-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.preview-visual {
    aspect-ratio: 16/9;
    background: var(--neutral-light);
    border-radius: var(--radius-md);
    overflow: hidden;
    position: relative;
}

.preview-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--neutral-medium);
    text-align: center;
    padding: var(--spacing-lg);
}

.preview-placeholder svg {
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.preview-text h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-md);
}

.prompt-output {
    background: var(--neutral-light);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    min-height: 120px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: var(--font-size-sm);
    line-height: 1.6;
    border: 1px solid #e2e8f0;
}

.prompt-placeholder {
    color: var(--neutral-medium);
    font-style: italic;
}

.btn-copy {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    width: 100%;
    padding: var(--spacing-md);
    background: var(--primary-blue);
    color: var(--white);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-copy:hover:not(:disabled) {
    background: #2c5282;
    transform: translateY(-1px);
}

.btn-copy:disabled {
    background: var(--neutral-medium);
    cursor: not-allowed;
    opacity: 0.6;
}

/* Navigation */
.navigation {
    background: var(--white);
    border-top: 1px solid #e2e8f0;
    padding: var(--spacing-lg) 0;
    position: sticky;
    bottom: 0;
    z-index: 100;
    box-shadow: 0 -4px 6px -1px rgba(0, 0, 0, 0.1);
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
}

.btn-nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--primary-blue);
    color: var(--white);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    min-width: 120px;
    justify-content: center;
}

.btn-nav:hover:not(:disabled) {
    background: #2c5282;
    transform: translateY(-1px);
}

.btn-nav:disabled {
    background: var(--neutral-medium);
    cursor: not-allowed;
    opacity: 0.6;
}

.btn-prev {
    background: var(--neutral-medium);
}

.btn-prev:hover:not(:disabled) {
    background: var(--neutral-dark);
}

.step-indicators {
    display: flex;
    gap: var(--spacing-sm);
}

.step-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    cursor: pointer;
    min-width: 60px;
}

.step-indicator:hover {
    background: var(--neutral-light);
}

.step-indicator.active {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
}

.step-indicator.completed {
    background: linear-gradient(135deg, #f0fff4 0%, #dcfce7 100%);
}

.step-number {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: #e2e8f0;
    color: var(--neutral-medium);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
    font-weight: 600;
    transition: all var(--transition-fast);
}

.step-indicator.active .step-number {
    background: var(--primary-blue);
    color: var(--white);
}

.step-indicator.completed .step-number {
    background: var(--success-green);
    color: var(--white);
}

.step-label {
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--neutral-medium);
    text-align: center;
}

.step-indicator.active .step-label {
    color: var(--primary-blue);
}

.step-indicator.completed .step-label {
    color: var(--success-green);
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.loading-overlay.active {
    display: flex;
}

.loading-spinner {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    text-align: center;
    box-shadow: var(--shadow-xl);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #e2e8f0;
    border-top: 4px solid var(--primary-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-md);
}

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

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: 1100;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.toast {
    background: var(--white);
    border-radius: var(--radius-md);
    padding: var(--spacing-md) var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    border-left: 4px solid var(--success-green);
    max-width: 300px;
    animation: slideIn var(--transition-normal);
}

.toast.error {
    border-left-color: var(--error-red);
}

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* Modal de Finalização */
.finish-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 1000;
    overflow-y: auto;
}

.finish-modal.active {
    display: block;
}

.modal-content {
    background: #FFFFFF;
    max-width: 1200px;
    margin: 2rem auto;
    border-radius: 1rem;
    box-shadow: 0 0 40px rgba(0, 0, 0, 0.3);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid #e2e8f0;
    background: #FFFFFF;
    border-radius: 1rem 1rem 0 0;
}

.modal-header h2 {
    font-size: 1.5rem;
    margin: 0;
    color: var(--primary-blue);
}

.modal-close {
    background: none;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
    color: var(--neutral-medium);
    transition: color 0.2s;
}

.modal-close:hover {
    color: var(--neutral-dark);
}

.modal-body {
    padding: 2rem;
    background: #FFFFFF;
    border-radius: 0 0 1rem 1rem;
}

.final-prompt {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--neutral-light);
    border-radius: 0.5rem;
    border: 1px solid #e2e8f0;
}

.prompt-box {
    margin: 1rem 0;
    padding: 1rem;
    background: var(--neutral-light);
    border-radius: 0.5rem;
    white-space: pre-wrap;
    border: 1px solid #e2e8f0;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: var(--font-size-sm);
}

.ai-tools {
    margin-top: 3rem;
}

.tools-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.tool-card {
    background: var(--neutral-light);
    border-radius: 0.5rem;
    padding: 1.5rem;
    transition: transform 0.2s;
    border: 1px solid #e2e8f0;
}

.tool-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.tool-card h4 {
    margin: 0 0 1rem 0;
    font-size: 1.2rem;
    color: var(--primary-blue);
}

.tool-card p {
    margin: 0 0 1.5rem 0;
    color: var(--neutral-medium);
}

.tool-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tool-links a {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--primary-blue);
    border-radius: 0.25rem;
    color: #FFFFFF;
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.2s;
}

.tool-links a:hover {
    background: #2c5282;
    transform: translateY(-1px);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .app-layout {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .preview-panel {
        position: static;
        max-height: none;
        order: -1;
    }
    
    .header-content {
        flex-wrap: wrap;
        gap: var(--spacing-md);
    }
    
    .progress-container {
        order: 3;
        flex-basis: 100%;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .main {
        padding: var(--spacing-lg) 0;
    }
    
    .step-content {
        padding: var(--spacing-lg);
    }
    
    .options-grid {
        grid-template-columns: 1fr;
    }
    
    .options-grid-small {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    }
    
    .nav-content {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .step-indicators {
        order: -1;
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .step-indicator {
        min-width: 50px;
    }
    
    .step-label {
        display: none;
    }
    
    .btn-nav {
        min-width: 140px;
    }
}

@media (max-width: 480px) {
    .logo {
        font-size: var(--font-size-xl);
    }
    
    .step-title {
        font-size: var(--font-size-2xl);
    }
    
    .options-row {
        justify-content: center;
    }
    
    .option-chip {
        flex: 1;
        min-width: 100px;
    }
    
    .preview-visual {
        aspect-ratio: 1;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles for keyboard navigation */
.option-card:focus,
.option-chip:focus,
.btn-nav:focus,
.btn-copy:focus,
.btn-reset:focus,
.btn-toggle-preview:focus,
.step-indicator:focus {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --neutral-light: #ffffff;
        --neutral-medium: #000000;
        --neutral-dark: #000000;
    }
    
    .option-card {
        border-width: 3px;
    }
    
    .option-chip {
        border-width: 3px;
    }
}