/* ============================================
   OficinaTexto - CSS Compartilhado de Ferramentas
   Sistema DRY para todas as páginas de tools
   ============================================ */

/* Fonts */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=DM+Serif+Display&family=JetBrains+Mono:wght@400;500&display=swap');

/* Variables */
:root {
    /* Colors */
    --color-bg: #faf9f7;
    --color-bg-alt: #f5f4f2;
    --color-surface: #ffffff;
    --color-border: #e8e6e3;
    --color-border-light: #f0eeeb;
    
    --color-text: #1a1a2e;
    --color-text-secondary: #5c5c6d;
    --color-text-muted: #8888a4;
    
    --color-primary: #2d5a27;
    --color-primary-light: #3d7a35;
    --color-primary-bg: #eef5ed;
    
    --color-accent: #c45d35;
    --color-accent-light: #e8d4cb;
    
    --color-success: #22863a;
    --color-success-bg: #dcffe4;
    --color-error: #cb2431;
    --color-error-bg: #ffeef0;
    --color-warning: #b08800;
    --color-warning-bg: #fffbdd;
    --color-info: #0366d6;
    --color-info-bg: #f1f8ff;
    
    /* Typography */
    --font-sans: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-serif: 'DM Serif Display', Georgia, serif;
    --font-mono: 'JetBrains Mono', 'Consolas', monospace;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.06);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.08);
    --shadow-focus: 0 0 0 3px rgba(45, 90, 39, 0.15);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 400ms ease;
}

/* Base Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Header */
.tool-header-nav {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-md) 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.tool-header-nav .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.tool-header-nav .logo {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--color-text);
    text-decoration: none;
}

.tool-header-nav .nav-links {
    display: flex;
    gap: var(--space-lg);
    list-style: none;
}

.tool-header-nav .nav-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.tool-header-nav .nav-links a:hover {
    color: var(--color-primary);
}

/* Tool Hero */
.tool-hero {
    background: linear-gradient(180deg, var(--color-surface) 0%, var(--color-bg) 100%);
    padding: var(--space-2xl) 0;
    border-bottom: 1px solid var(--color-border-light);
}

.tool-hero .container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    text-align: center;
}

.tool-hero .breadcrumb {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-lg);
}

.tool-hero .breadcrumb a {
    color: var(--color-text-secondary);
    text-decoration: none;
}

.tool-hero .breadcrumb a:hover {
    color: var(--color-primary);
    text-decoration: underline;
}

.tool-hero h1 {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 5vw, 2.75rem);
    font-weight: 400;
    color: var(--color-text);
    margin-bottom: var(--space-md);
    line-height: 1.2;
}

.tool-hero .lead {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.tool-hero .badges {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    margin-top: var(--space-lg);
    flex-wrap: wrap;
}

.tool-hero .badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-md);
    background: var(--color-primary-bg);
    color: var(--color-primary);
    font-size: 0.8125rem;
    font-weight: 500;
    border-radius: 100px;
}

.tool-hero .badge svg {
    width: 14px;
    height: 14px;
}

/* Main Tool Container */
.tool-main {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--space-2xl) var(--space-lg);
}

/* Tool Card */
.tool-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.tool-card-header {
    padding: var(--space-lg);
    border-bottom: 1px solid var(--color-border-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.tool-card-header h2 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.tool-card-header h2 svg {
    width: 20px;
    height: 20px;
    color: var(--color-primary);
}

.tool-card-actions {
    display: flex;
    gap: var(--space-sm);
}

.tool-card-body {
    padding: var(--space-lg);
}

/* Form Elements */
.tool-input-group {
    margin-bottom: var(--space-lg);
}

.tool-input-group label {
    display: block;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: var(--space-sm);
    font-size: 0.9375rem;
}

.tool-input-group .hint {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    margin-top: var(--space-xs);
}

/* Textarea */
.tool-textarea {
    width: 100%;
    min-height: 200px;
    padding: var(--space-md);
    font-family: var(--font-mono);
    font-size: 0.9375rem;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    resize: vertical;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.tool-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: var(--shadow-focus);
    background: var(--color-surface);
}

.tool-textarea::placeholder {
    color: var(--color-text-muted);
}

/* Text Input */
.tool-input {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    color: var(--color-text);
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.tool-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: var(--shadow-focus);
    background: var(--color-surface);
}

/* Options Grid */
.tool-options-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.tool-option {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.tool-option:hover {
    border-color: var(--color-primary);
    background: var(--color-primary-bg);
}

.tool-option input[type="checkbox"],
.tool-option input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--color-primary);
    cursor: pointer;
}

.tool-option span {
    font-size: 0.9375rem;
    color: var(--color-text);
}

/* Range Slider */
.tool-range-container {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.tool-range {
    flex: 1;
    height: 6px;
    background: var(--color-border);
    border-radius: 3px;
    -webkit-appearance: none;
    appearance: none;
}

.tool-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    background: var(--color-primary);
    border-radius: 50%;
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.tool-range::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.tool-range-value {
    min-width: 48px;
    padding: var(--space-xs) var(--space-sm);
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    text-align: center;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: 500;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
}

.btn svg {
    width: 18px;
    height: 18px;
}

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

.btn-primary:hover:not(:disabled) {
    background: var(--color-primary-light);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover:not(:disabled) {
    background: var(--color-border-light);
    border-color: var(--color-text-muted);
}

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

.btn-accent:hover:not(:disabled) {
    background: #b35430;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-lg {
    padding: var(--space-md) var(--space-xl);
    font-size: 1rem;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Action Button with Loading */
.btn-action {
    position: relative;
    min-width: 180px;
}

.btn-action .btn-text {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    transition: opacity var(--transition-fast);
}

.btn-action .btn-loader {
    position: absolute;
    display: none;
    align-items: center;
    gap: var(--space-sm);
}

.btn-action.loading .btn-text {
    opacity: 0;
}

.btn-action.loading .btn-loader {
    display: flex;
}

/* Spinner Animation */
.spinner {
    width: 18px;
    height: 18px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Result Section */
.tool-result {
    margin-top: var(--space-xl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-border-light);
    opacity: 0;
    transform: translateY(20px);
    transition: all var(--transition-normal);
}

.tool-result.visible {
    opacity: 1;
    transform: translateY(0);
}

.tool-result-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-md);
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.tool-result-header h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.tool-result-header h3 svg {
    width: 20px;
    height: 20px;
    color: var(--color-success);
}

/* Result Output */
.tool-output {
    position: relative;
    background: var(--color-text);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.tool-output-content {
    padding: var(--space-lg);
    font-family: var(--font-mono);
    font-size: 1.125rem;
    color: #fff;
    word-break: break-all;
    line-height: 1.6;
}

.tool-output-copy {
    position: absolute;
    top: var(--space-sm);
    right: var(--space-sm);
    padding: var(--space-sm);
    background: rgba(255,255,255,0.1);
    border: none;
    border-radius: var(--radius-sm);
    color: rgba(255,255,255,0.7);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.tool-output-copy:hover {
    background: rgba(255,255,255,0.2);
    color: #fff;
}

.tool-output-copy svg {
    width: 18px;
    height: 18px;
}

.tool-output-copy.copied {
    background: var(--color-success);
    color: white;
}

/* Stats Grid */
.tool-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

.tool-stat {
    background: var(--color-bg-alt);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    text-align: center;
}

.tool-stat-value {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-primary);
    display: block;
}

.tool-stat-label {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    margin-top: var(--space-xs);
}

/* Feedback Toast */
.tool-toast {
    position: fixed;
    bottom: var(--space-xl);
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    padding: var(--space-md) var(--space-lg);
    background: var(--color-text);
    color: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    z-index: 1000;
    opacity: 0;
    transition: all var(--transition-normal);
}

.tool-toast.visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.tool-toast.success {
    background: var(--color-success);
}

.tool-toast.error {
    background: var(--color-error);
}

.tool-toast.warning {
    background: var(--color-warning);
    color: var(--color-text);
}

.tool-toast svg {
    width: 20px;
    height: 20px;
}

/* Info Box */
.tool-info-box {
    background: var(--color-info-bg);
    border: 1px solid rgba(3, 102, 214, 0.2);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    margin-top: var(--space-lg);
    display: flex;
    gap: var(--space-sm);
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.tool-info-box svg {
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    color: var(--color-info);
    margin-top: 2px;
}

/* Content Section */
.tool-content {
    max-width: 800px;
    margin: var(--space-3xl) auto;
    padding: 0 var(--space-lg);
}

.tool-content h2 {
    font-family: var(--font-serif);
    font-size: 1.75rem;
    font-weight: 400;
    color: var(--color-text);
    margin-top: var(--space-2xl);
    margin-bottom: var(--space-md);
}

.tool-content h2:first-child {
    margin-top: 0;
}

.tool-content h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text);
    margin-top: var(--space-xl);
    margin-bottom: var(--space-sm);
}

.tool-content p {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

.tool-content ul, .tool-content ol {
    padding-left: var(--space-lg);
    margin-bottom: var(--space-md);
    color: var(--color-text-secondary);
}

.tool-content li {
    margin-bottom: var(--space-sm);
}

.tool-content strong {
    color: var(--color-text);
}

/* Feature Grid */
.tool-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
    margin: var(--space-xl) 0;
}

.tool-feature {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
}

.tool-feature h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-sm);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.tool-feature h4 svg {
    width: 20px;
    height: 20px;
    color: var(--color-primary);
}

.tool-feature p {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    margin: 0;
}

/* FAQ */
.tool-faq {
    margin: var(--space-xl) 0;
}

.tool-faq-item {
    border-bottom: 1px solid var(--color-border-light);
    padding: var(--space-lg) 0;
}

.tool-faq-item:first-child {
    border-top: 1px solid var(--color-border-light);
}

.tool-faq-item h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-sm);
}

.tool-faq-item p {
    color: var(--color-text-secondary);
    margin: 0;
}

/* CTA Section */
.tool-cta {
    background: var(--color-primary-bg);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    text-align: center;
    margin: var(--space-2xl) 0;
}

.tool-cta h3 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--color-text);
    margin-bottom: var(--space-sm);
}

.tool-cta p {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
}

.tool-cta-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.tool-cta-links a {
    padding: var(--space-sm) var(--space-md);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.875rem;
    transition: all var(--transition-fast);
}

.tool-cta-links a:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* Footer */
.tool-footer {
    background: var(--color-text);
    color: rgba(255,255,255,0.7);
    padding: var(--space-2xl) 0;
    margin-top: var(--space-3xl);
}

.tool-footer .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.tool-footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.tool-footer h4 {
    color: white;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-md);
}

.tool-footer ul {
    list-style: none;
}

.tool-footer li {
    margin-bottom: var(--space-sm);
}

.tool-footer a {
    color: rgba(255,255,255,0.6);
    text-decoration: none;
    font-size: 0.9375rem;
    transition: color var(--transition-fast);
}

.tool-footer a:hover {
    color: white;
}

.tool-footer-bottom {
    padding-top: var(--space-lg);
    border-top: 1px solid rgba(255,255,255,0.1);
    text-align: center;
    font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 768px) {
    .tool-hero {
        padding: var(--space-xl) 0;
    }
    
    .tool-hero h1 {
        font-size: 1.75rem;
    }
    
    .tool-main {
        padding: var(--space-lg);
    }
    
    .tool-card-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .tool-card-actions {
        width: 100%;
    }
    
    .tool-card-actions .btn {
        flex: 1;
    }
    
    .tool-options-grid {
        grid-template-columns: 1fr;
    }
    
    .tool-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .tool-result-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .tool-header-nav .nav-links {
        display: none;
    }
}

/* Print Styles */
@media print {
    .tool-header-nav,
    .tool-footer,
    .tool-card-actions,
    .btn {
        display: none;
    }
    
    .tool-output-content {
        background: #f5f5f5;
        color: #000;
        border: 1px solid #ccc;
    }
}

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

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus Visible */
:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* ============================================
   Ad Containers (AdSense)
   ============================================ */
.tool-ad {
    background: var(--color-bg-alt);
    border: 1px dashed var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    text-align: center;
    position: relative;
    min-height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tool-ad::before {
    content: 'Publicidade';
    position: absolute;
    top: -10px;
    left: var(--space-md);
    background: var(--color-bg);
    padding: 0 var(--space-sm);
    font-size: 0.6875rem;
    font-weight: 500;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Ad placement variants */
.tool-ad-top {
    max-width: 900px;
    margin: 0 auto var(--space-xl);
    padding-left: var(--space-lg);
    padding-right: var(--space-lg);
}

.tool-ad-top .tool-ad {
    min-height: 90px; /* Leaderboard: 728x90 */
}

.tool-ad-inline {
    margin: var(--space-xl) 0;
}

.tool-ad-inline .tool-ad {
    min-height: 280px; /* Medium Rectangle: 300x250 or 336x280 */
}

.tool-ad-bottom {
    max-width: 900px;
    margin: var(--space-xl) auto 0;
    padding-left: var(--space-lg);
    padding-right: var(--space-lg);
}

.tool-ad-bottom .tool-ad {
    min-height: 90px; /* Leaderboard: 728x90 */
}

/* Ad placeholder text (remove when AdSense is active) */
.tool-ad-placeholder {
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

/* Responsive ads */
@media (max-width: 768px) {
    .tool-ad-top .tool-ad,
    .tool-ad-bottom .tool-ad {
        min-height: 60px; /* Mobile banner: 320x50 */
    }
    
    .tool-ad-inline .tool-ad {
        min-height: 260px; /* Mobile rectangle */
    }
    
    .tool-ad-top,
    .tool-ad-bottom {
        padding-left: var(--space-md);
        padding-right: var(--space-md);
    }
}

/* Hide ads in print */
@media print {
    .tool-ad,
    .tool-ad-top,
    .tool-ad-inline,
    .tool-ad-bottom {
        display: none !important;
    }
}