/**
 * Comparador de Modais - Stylesheet
 * Desenvolvido por B20 Conteúdo Digital
 * https://www.b20.com.br
 */

/* ========== CSS Variables ========== */
:root {
    /* Colors - Amazon-inspired palette */
    --primary-color: #FF9900;
    --secondary-color: #232F3E;
    --tertiary-color: #37475A;
    --accent-color: #146EB4;
    --white: #FFFFFF;
    
    /* Semantic Colors */
    --success-color: #00A86B;
    --warning-color: #FFB800;
    --error-color: #E53935;
    --info-color: #146EB4;
    
    /* Neutral Colors */
    --bg-primary: #FFFFFF;
    --bg-secondary: #F5F5F5;
    --bg-tertiary: #E8E8E8;
    --text-primary: #232F3E;
    --text-secondary: #37475A;
    --text-muted: #767676;
    --border-color: #DDD;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    --transition-bounce: 400ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
    
    /* Animations */
    --animation-fade-in: fadeIn 0.3s ease-in;
    --animation-slide-up: slideUp 0.4s ease-out;
    --animation-scale-in: scaleIn 0.3s ease-out;
    --animation-pulse: pulse 2s ease-in-out infinite;
    
    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal: 1040;
    --z-toast: 1050;
    --z-tooltip: 1060;
}

/* Dark Mode Variables */
[data-theme="dark"] {
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --bg-tertiary: #404040;
    --text-primary: #FFFFFF;
    --text-secondary: #E0E0E0;
    --text-muted: #A0A0A0;
    --border-color: #404040;
    --secondary-color: #37475A;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    width: 100%;
    max-width: 100%;
}

/* ========== Animations ========== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

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

@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    min-height: 100vh;
    padding-bottom: 0;
    overflow-x: hidden;
    width: 100%;
    max-width: 100%;
    position: relative;
    transition: background-color var(--transition-base), color var(--transition-base);
}

/* ========== Typography ========== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-color);
}

/* ========== Layout ========== */
.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    box-sizing: border-box;
    overflow-x: hidden;
}

.app-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
    width: 100%;
    max-width: 100%;
    min-width: 0;
    box-sizing: border-box;
}

@media (min-width: 768px) {
    .app-layout {
        grid-template-columns: 320px 1fr;
    }
}

@media (min-width: 1024px) {
    .app-layout {
        grid-template-columns: 380px 1fr;
        gap: var(--spacing-xl);
    }
}

/* ========== Header ========== */
.app-header {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--tertiary-color) 100%);
    color: var(--white);
    padding: var(--spacing-lg) 0;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    overflow-x: hidden;
    width: 100%;
    max-width: 100%;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: nowrap;
    overflow-x: hidden;
    width: 100%;
    max-width: 100%;
}

.app-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--white);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin: 0;
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    text-decoration: none;
    transition: opacity var(--transition-base);
}

.app-title:hover {
    opacity: 0.9;
}

.app-title:focus-visible {
    outline: 2px solid var(--white);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

.app-logo {
    height: 40px;
    width: auto;
    max-width: 150px;
    object-fit: contain;
    flex-shrink: 0;
    transition: transform var(--transition-base);
}

.app-logo:hover {
    transform: scale(1.05);
}

.app-title span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.app-title i {
    color: var(--primary-color);
    flex-shrink: 0;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    flex-shrink: 0;
}

.header-actions .btn {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
    min-height: 36px;
    white-space: nowrap;
}

.theme-toggle {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--white);
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-base);
    flex-shrink: 0;
}

.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.2);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.theme-toggle i {
    font-size: var(--font-size-base);
}

.config-toggle {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--white);
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-base);
    flex-shrink: 0;
}

.config-toggle:hover {
    background: rgba(255, 255, 255, 0.2);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.config-toggle i {
    font-size: var(--font-size-base);
}

/* ========== Hero Section ========== */
.hero-section {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--tertiary-color) 50%, var(--accent-color) 100%);
    color: var(--white);
    padding: var(--spacing-2xl) 0;
    margin: var(--spacing-xl) 0;
    border-radius: var(--radius-lg);
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.hero-icon {
    height: 120px;
    width: auto;
    max-width: 300px;
    object-fit: contain;
    margin-bottom: var(--spacing-lg);
    display: block;
    margin-left: auto;
    margin-right: auto;
    filter: brightness(0) invert(1);
    animation: fadeIn 0.6s ease-out, pulse 3s ease-in-out infinite;
    animation-delay: 0s, 1s;
}

.hero-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.hero-description {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

/* ========== Sidebar ========== */
.sidebar {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    height: fit-content;
    position: sticky;
    top: calc(80px + var(--spacing-lg));
}

.section-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-xl);
}

.section-title i {
    color: var(--primary-color);
}

/* ========== Form Styles ========== */
.comparison-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.form-label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.form-label-icon {
    color: var(--primary-color);
}

.form-input,
.form-select {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 153, 0, 0.15);
    transform: translateY(-1px);
}

.form-input:focus-visible,
.form-select:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.form-input.error,
.form-select.error {
    border-color: var(--error-color);
    animation: shake 0.4s ease-in-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}

.error-message {
    color: var(--error-color);
    font-size: var(--font-size-xs);
    display: none;
    margin-top: var(--spacing-xs);
    padding-left: var(--spacing-sm);
    animation: slideUp 0.3s ease-out;
}

.error-message.visible {
    display: block;
}

.form-input:valid:not(:placeholder-shown) {
    border-color: var(--success-color);
}

.form-input:valid:not(:placeholder-shown) + .error-message {
    display: none;
}

/* Radio Group */
.radio-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.radio-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.radio-label:hover {
    background: var(--bg-tertiary);
    transform: translateX(4px);
}

.radio-label:has(input:checked) {
    background: rgba(255, 153, 0, 0.1);
    border: 2px solid var(--primary-color);
    font-weight: 600;
}

.radio-label:has(input:focus-visible) {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
    border-radius: var(--radius-md);
}

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

.radio-icon {
    color: var(--primary-color);
}

/* ========== Buttons ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: 600;
    font-family: var(--font-family);
    cursor: pointer;
    transition: all var(--transition-base);
    min-height: 44px;
}

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

.btn-primary:hover {
    background: #E68A00;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

.btn-primary:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

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

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

.btn-secondary:hover {
    background: var(--border-color);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

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

.btn-secondary:focus-visible {
    outline: 2px solid var(--text-primary);
    outline-offset: 2px;
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: var(--secondary-color);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

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

.btn-outline:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.btn-block {
    width: 100%;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* ========== History Section ========== */
.history-section {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
}

.subsection-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
}

.history-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.history-item {
    padding: var(--spacing-md);
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.history-item:hover {
    border-color: var(--primary-color);
    transform: translateX(4px);
}

.history-date {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    margin-bottom: var(--spacing-xs);
}

.history-details {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* ========== Results Section ========== */
.results-section {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
    width: 100%;
    max-width: 100%;
    min-width: 0;
    overflow-x: hidden;
    box-sizing: border-box;
}

.results-tabs {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.tab-button {
    flex: 1;
    min-width: 140px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.tab-button i {
    font-size: var(--font-size-lg);
}

.tab-button.active {
    background: var(--primary-color);
    color: var(--secondary-color);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.tab-button:not(.active):hover {
    border-color: var(--border-color);
}

.initial-state {
    text-align: center;
    padding: var(--spacing-2xl) 0;
    animation: fadeIn 0.5s ease-in;
}

.empty-state-message {
    max-width: 500px;
    margin: 0 auto;
    animation: slideUp 0.5s ease-out;
}

.empty-icon {
    animation: pulse 2s ease-in-out infinite;
}

.empty-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    opacity: 0.6;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.feature-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.hero-section .feature-item {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    color: var(--white);
}

.hero-section .feature-item:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-4px);
}

.feature-item i {
    font-size: var(--font-size-2xl);
    color: var(--primary-color);
}

.hero-section .feature-item i {
    color: var(--white);
}

.feature-item span {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
}

.hero-section .feature-item span {
    color: var(--white);
}

.config-section {
    margin-top: var(--spacing-lg);
}

.config-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-lg);
}

.config-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
    animation: fadeIn 0.4s ease-out backwards;
}

.config-card:nth-child(1) { animation-delay: 0.1s; }
.config-card:nth-child(2) { animation-delay: 0.2s; }
.config-card:nth-child(3) { animation-delay: 0.3s; }

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

.config-card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 700;
    color: var(--text-primary);
    font-size: var(--font-size-lg);
}

.config-card-header i {
    color: var(--primary-color);
}

.config-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.config-actions .btn {
    flex: 1;
    min-width: 160px;
}

.social-share {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.social-share-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.social-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--spacing-sm);
}

.social-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-primary);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-base);
    font-size: var(--font-size-sm);
    font-weight: 500;
    min-height: 60px;
}

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

.social-btn i {
    font-size: var(--font-size-lg);
}

.social-btn span {
    font-size: var(--font-size-xs);
}

.social-btn.facebook {
    border-color: #1877F2;
    color: #1877F2;
}

.social-btn.facebook:hover {
    background: #1877F2;
    color: var(--white);
}

.social-btn.twitter {
    border-color: #000000;
    color: #000000;
}

.social-btn.twitter:hover {
    background: #000000;
    color: var(--white);
}

.social-btn.linkedin {
    border-color: #0077B5;
    color: #0077B5;
}

.social-btn.linkedin:hover {
    background: #0077B5;
    color: var(--white);
}

.social-btn.whatsapp {
    border-color: #25D366;
    color: #25D366;
}

.social-btn.whatsapp:hover {
    background: #25D366;
    color: var(--white);
}

.social-btn.telegram {
    border-color: #0088CC;
    color: #0088CC;
}

.social-btn.telegram:hover {
    background: #0088CC;
    color: var(--white);
}

.config-item {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--spacing-md);
}

.config-item p {
    margin: 0;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.status-badge {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
}

.status-badge.success {
    background: rgba(0, 168, 107, 0.15);
    color: var(--success-color);
}

/* Loading State */
.loading-state {
    text-align: center;
    padding: var(--spacing-2xl) 0;
    animation: fadeIn 0.3s ease-in;
}

.loading-state p {
    color: var(--text-secondary);
    font-size: var(--font-size-lg);
    margin-top: var(--spacing-md);
    animation: pulse 2s ease-in-out infinite;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--bg-tertiary);
    border-top-color: var(--primary-color);
    border-right-color: var(--primary-color);
    border-radius: 50%;
    margin: 0 auto var(--spacing-lg);
    animation: spin 0.8s linear infinite;
    position: relative;
}

.spinner::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    border: 2px solid var(--primary-color);
    border-top-color: transparent;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    animation: spin 0.4s linear infinite reverse;
}

/* Skeleton Loading */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--bg-secondary) 0%,
        var(--bg-tertiary) 50%,
        var(--bg-secondary) 100%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s ease-in-out infinite;
    border-radius: var(--radius-md);
}

.skeleton-text {
    height: 1em;
    margin-bottom: var(--spacing-sm);
}

.skeleton-title {
    height: 1.5em;
    width: 60%;
    margin-bottom: var(--spacing-md);
}

.skeleton-card {
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
}

/* Results Container */
.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.results-title {
    margin: 0;
}

.results-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* Best Option Card */
.best-option-card {
    background: linear-gradient(135deg, var(--primary-color) 0%, #E68A00 100%);
    color: var(--secondary-color);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    animation: scaleIn 0.5s ease-out;
    position: relative;
    overflow: hidden;
}

.best-option-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: pulse 3s ease-in-out infinite;
}

.best-option-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: rgba(35, 47, 62, 0.2);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.best-option-title {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-md);
}

.best-option-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.stat-item {
    text-align: center;
}

.stat-value {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    display: block;
}

.stat-label {
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

/* Comparison Grid */
.comparison-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.modal-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    border: 2px solid transparent;
    animation: slideUp 0.4s ease-out backwards;
    cursor: pointer;
}

.modal-card:nth-child(1) { animation-delay: 0.1s; }
.modal-card:nth-child(2) { animation-delay: 0.2s; }
.modal-card:nth-child(3) { animation-delay: 0.3s; }
.modal-card:nth-child(4) { animation-delay: 0.4s; }
.modal-card:nth-child(5) { animation-delay: 0.5s; }

.modal-card:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.modal-card:active {
    transform: translateY(-2px) scale(1.01);
}

.modal-card.recommended {
    border-color: var(--primary-color);
    background: linear-gradient(to bottom, rgba(255, 153, 0, 0.05), var(--bg-primary));
    animation: scaleIn 0.5s ease-out;
    position: relative;
}

.modal-card.recommended::after {
    content: '⭐';
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    font-size: var(--font-size-lg);
    animation: pulse 2s ease-in-out infinite;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}

.modal-icon {
    font-size: var(--font-size-3xl);
    display: inline-flex;
}

.modal-icon i {
    font-size: inherit;
}

.modal-score {
    background: var(--primary-color);
    color: var(--secondary-color);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-weight: 700;
}

.modal-name {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-md);
}

.modal-warning {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    background: rgba(229, 57, 53, 0.08);
    color: var(--error-color);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-md);
}

.capacity-warning {
    color: var(--error-color);
    font-weight: 700;
}

.modal-metrics {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.metric-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-color);
}

.metric-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.metric-value {
    font-weight: 600;
    color: var(--text-primary);
}

/* Table */
.table-container {
    margin-top: var(--spacing-xl);
}

.table-responsive {
    overflow-x: auto;
    margin-top: var(--spacing-md);
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.comparison-table th,
.comparison-table td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.comparison-table th {
    background: var(--bg-tertiary);
    font-weight: 600;
    color: var(--text-primary);
}

.comparison-table tbody tr:hover {
    background: var(--bg-secondary);
}

.comparison-table tbody tr.best-row {
    background: rgba(255, 153, 0, 0.1);
    font-weight: 600;
}

/* ========== FAQ Section ========== */
.faq-section {
    background: var(--bg-secondary);
    padding: var(--spacing-2xl) 0;
    margin-top: var(--spacing-2xl);
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.faq-question {
    width: 100%;
    padding: var(--spacing-lg);
    background: none;
    border: none;
    text-align: left;
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background var(--transition-fast);
}

.faq-question:hover {
    background: var(--bg-secondary);
}

.faq-icon {
    font-size: var(--font-size-xl);
    color: var(--primary-color);
    transition: transform var(--transition-base);
}

.faq-question[aria-expanded="true"] .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 var(--spacing-lg);
    max-height: 0;
    overflow: hidden;
    transition: all var(--transition-base);
}

.faq-answer.visible {
    padding: var(--spacing-lg);
    max-height: 500px;
}

.faq-answer p {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* FAQ Dedicated Page */
.faq-hero {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--tertiary-color) 60%, var(--accent-color) 100%);
    color: var(--white);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-lg);
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    margin-top: 30px;
}

.faq-hero-content h2 {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-md);
}

.faq-hero-content p {
    color: rgba(255, 255, 255, 0.85);
}

.faq-breadcrumb {
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: rgba(255, 255, 255, 0.7);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

.faq-hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
    align-items: center;
    justify-content: space-between;
}

.faq-hero-actions .btn-group {
    display: flex;
    gap: var(--spacing-sm);
}

.faq-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.85);
    flex-wrap: wrap;
}

.faq-meta span {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.faq-hero-highlight {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: var(--spacing-md);
}

.faq-highlight-card {
    background: rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    text-align: center;
    backdrop-filter: blur(10px);
}

.faq-highlight-card strong {
    display: block;
    font-size: var(--font-size-2xl);
    margin: var(--spacing-xs) 0;
}

.faq-tools {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.faq-search-wrapper {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.faq-search {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    padding: var(--spacing-sm) var(--spacing-md);
    box-shadow: var(--shadow-sm);
}

.faq-search input {
    border: none;
    background: transparent;
    width: 100%;
    font-size: var(--font-size-base);
    color: var(--text-primary);
}

.faq-search input:focus {
    outline: none;
}

.faq-results-count {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.faq-toolbar {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.faq-quick-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.faq-nav {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.faq-nav a {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-full);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.faq-nav a:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.faq-content {
    margin-bottom: var(--spacing-2xl);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-xl);
}

.faq-category {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    position: relative;
}

.faq-category--empty {
    opacity: 0.4;
}

.faq-category--empty::after {
    content: 'Nenhuma pergunta encontrada nesta categoria';
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.faq-category .faq-item {
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-sm);
}

.faq-category .faq-question {
    border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.faq-item--hidden {
    display: none;
}

.faq-category .faq-answer {
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    border-top: 1px solid var(--border-color);
}

/* ========== Privacy Page ========== */
.privacy-content {
    margin-top: var(--spacing-2xl);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.privacy-section {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.privacy-section h3 {
    font-size: var(--font-size-xl);
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.privacy-section h3 i {
    color: var(--primary-color);
}

.privacy-section h4 {
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.privacy-section p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.privacy-section ul {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
    line-height: 1.8;
}

.privacy-section ul li {
    margin-bottom: var(--spacing-xs);
}

.privacy-section ul li strong {
    color: var(--text-primary);
}

.privacy-section a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-base);
}

.privacy-section a:hover {
    color: var(--accent-color);
    text-decoration: underline;
}

.contact-info {
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin: var(--spacing-md) 0;
}

.contact-info p {
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.contact-info i {
    color: var(--primary-color);
    width: 20px;
}

/* ========== Footer ========== */
.app-footer {
    background: var(--secondary-color);
    color: var(--white);
    padding: var(--spacing-xl) 0;
    text-align: center;
    margin-top: var(--spacing-2xl);
}

.footer-logo {
    margin-bottom: var(--spacing-lg);
    display: flex;
    justify-content: center;
    align-items: center;
}

.footer-logo-img {
    height: 50px;
    width: auto;
    max-width: 200px;
    object-fit: contain;
    opacity: 0.9;
    transition: all var(--transition-base);
    filter: brightness(0) invert(1);
}

.footer-logo-img:hover {
    opacity: 1;
    transform: scale(1.05);
}

[data-theme="dark"] .footer-logo-img {
    filter: brightness(0) invert(1);
}

.footer-text {
    margin-bottom: var(--spacing-sm);
}

.b20-link {
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-base);
}

.b20-link:hover {
    text-decoration: underline;
    transform: scale(1.05);
    display: inline-block;
}

.footer-link a {
    color: var(--white);
}

.footer-copyright {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-top: var(--spacing-md);
}

/* ========== Toast Notification ========== */
.toast {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--secondary-color);
    color: var(--white);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-xl);
    z-index: var(--z-toast);
    opacity: 0;
    transition: all var(--transition-bounce);
    max-width: 90%;
    text-align: center;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 500;
}

.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
    animation: slideUp 0.4s ease-out;
}

.toast::before {
    content: '';
    width: 20px;
    height: 20px;
    border-radius: 50%;
    flex-shrink: 0;
}

.toast.success::before {
    content: '✓';
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.toast.error::before {
    content: '✕';
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.toast.warning::before {
    content: '⚠';
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.toast.info::before {
    content: 'ℹ';
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

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

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

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

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

/* ========== Tooltips ========== */
[data-tooltip] {
    position: relative;
    cursor: help;
}

[data-tooltip]:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--secondary-color);
    color: var(--white);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    white-space: nowrap;
    z-index: var(--z-tooltip);
    margin-bottom: var(--spacing-xs);
    box-shadow: var(--shadow-md);
    animation: fadeIn 0.2s ease-out;
    pointer-events: none;
}

[data-tooltip]:hover::before {
    content: '';
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 5px solid transparent;
    border-top-color: var(--secondary-color);
    margin-bottom: -5px;
    z-index: var(--z-tooltip);
    animation: fadeIn 0.2s ease-out;
    pointer-events: none;
}

/* ========== Utility Classes ========== */
.empty-state {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-muted);
    font-style: italic;
}

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

/* ========== Responsive Design ========== */
@media (max-width: 767px) {
    .sidebar {
        position: static;
        top: auto;
    }
}

@media (max-width: 767px) {
    /* Prevenir overflow horizontal */
    .app-header {
        width: 100%;
        max-width: 100%;
        overflow-x: hidden;
    }
    
    .header-content {
        width: 100%;
        max-width: 100%;
        flex-wrap: wrap;
        gap: var(--spacing-sm);
    }
    
    .container {
        padding: 0 var(--spacing-sm);
        width: 100%;
        max-width: 100vw;
    }
    
    .app-layout {
        width: 100%;
        max-width: 100%;
        gap: var(--spacing-md);
    }
    
    .app-title {
        font-size: var(--font-size-xl);
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
    
    .app-logo {
        height: 35px;
        max-width: 120px;
    }

    .header-actions {
        gap: var(--spacing-xs);
        flex-shrink: 0;
    }
    
    .header-actions .btn {
        flex: 0 0 auto;
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: var(--font-size-xs);
        min-height: 32px;
    }
    
    .theme-toggle,
    .config-toggle {
        width: 32px;
        height: 32px;
        flex: 0 0 auto;
    }
    
    .theme-toggle i,
    .config-toggle i {
        font-size: var(--font-size-sm);
    }
    
    .hero-section {
        padding: var(--spacing-xl) 0;
        margin: var(--spacing-md) 0;
        width: 100%;
        max-width: 100%;
    }
    
    .hero-icon {
        height: 80px;
        max-width: 200px;
    }
    
    .hero-title {
        font-size: var(--font-size-2xl);
    }
    
    .hero-description {
        font-size: var(--font-size-base);
    }

    .faq-header {
        padding: var(--spacing-sm) 0;
    }

    .faq-header-content {
        flex-direction: column;
        align-items: flex-start;
    }

    .faq-header-actions {
        width: 100%;
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        max-width: 100%;
    }
    
    .results-section {
        padding: var(--spacing-md);
        width: 100%;
        max-width: 100%;
    }
    
    .results-tabs {
        flex-direction: column;
        width: 100%;
    }
    
    .tab-button {
        width: 100%;
        min-width: 0;
        justify-content: flex-start;
    }
    
    .results-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
        width: 100%;
    }
    
    .results-actions {
        width: 100%;
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .results-actions .btn {
        width: 100%;
        min-width: 0;
    }
    
    .best-option-card {
        padding: var(--spacing-lg);
        width: 100%;
        max-width: 100%;
    }
    
    .best-option-stats {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: var(--spacing-sm);
    }
    
    .comparison-grid {
        grid-template-columns: 1fr;
        width: 100%;
        max-width: 100%;
    }
    
    .modal-card {
        padding: var(--spacing-md);
        width: 100%;
        max-width: 100%;
    }

    .config-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .config-actions .btn {
        width: 100%;
        min-width: 0;
    }
    
    .social-buttons {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .social-btn {
        min-height: 55px;
    }
    
    .social-btn span {
        font-size: var(--font-size-xs);
    }

    .table-responsive {
        width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .comparison-table {
        min-width: 600px;
    }

    .faq-hero {
        grid-template-columns: 1fr;
        padding: var(--spacing-xl);
        width: 100%;
    }
    
    .faq-hero-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .privacy-content {
        padding: 0 var(--spacing-sm);
    }
    
    .privacy-section {
        padding: var(--spacing-lg);
    }
    
    .privacy-section h3 {
        font-size: var(--font-size-lg);
    }
    
    .privacy-section h4 {
        font-size: var(--font-size-base);
    }
    
    .faq-tools {
        padding: var(--spacing-lg);
        width: 100%;
    }
    
    .faq-nav {
        flex-direction: column;
    }
}

/* ========== Large Screens (Desktop) ========== */
@media (min-width: 1024px) {
    .results-section {
        min-height: 0;
        display: flex;
        flex-direction: column;
    }

    .results-container {
        width: 100%;
        max-width: 100%;
        min-width: 0;
        overflow-x: hidden;
    }

    .comparison-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        max-width: 100%;
    }

    .table-responsive {
        max-width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .best-option-stats {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}

@media (max-width: 1023px) and (min-width: 768px) {
    .results-section {
        padding: var(--spacing-lg);
    }

    .results-tabs {
        flex-direction: column;
    }

    .tab-button {
        width: 100%;
    }

    .results-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }

    .results-actions {
        width: 100%;
        flex-wrap: wrap;
    }

    .results-actions .btn {
        flex: 1;
        min-width: 160px;
    }

    .best-option-stats {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .best-option-card {
        padding: var(--spacing-lg);
    }

    .comparison-grid {
        grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    }

    .config-grid {
        grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
        width: 100%;
        max-width: 100vw;
    }
    
    .app-title {
        font-size: var(--font-size-lg);
        flex: 1;
        min-width: 0;
    }
    
    .app-logo {
        height: 30px;
        max-width: 100px;
    }
    
    .footer-logo-img {
        height: 40px;
        max-width: 150px;
    }
    
    .hero-icon {
        height: 60px;
        max-width: 150px;
    }
    
    .header-content {
        gap: var(--spacing-xs);
    }
    
    .header-actions .btn {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: var(--font-size-xs);
        min-height: 30px;
    }
    
    .theme-toggle,
    .config-toggle {
        width: 30px;
        height: 30px;
    }
    
    .theme-toggle i,
    .config-toggle i {
        font-size: var(--font-size-xs);
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        width: 100%;
    }
    
    .best-option-stats {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: var(--spacing-xs);
    }
    
    .comparison-table {
        min-width: 500px;
        font-size: var(--font-size-sm);
    }
    
    .comparison-table th,
    .comparison-table td {
        padding: var(--spacing-sm);
    }
    
    .privacy-section {
        padding: var(--spacing-md);
    }
    
    .privacy-section h3 {
        font-size: var(--font-size-base);
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
    }
    
    .privacy-section h4 {
        font-size: var(--font-size-sm);
    }
    
    .privacy-section ul {
        margin-left: var(--spacing-md);
    }
    
    .contact-info {
        padding: var(--spacing-md);
    }
    
    .social-buttons {
        grid-template-columns: 1fr;
    }
    
    .social-btn {
        min-height: 50px;
        flex-direction: row;
        justify-content: flex-start;
        padding: var(--spacing-sm);
    }
    
    .social-btn i {
        font-size: var(--font-size-base);
    }
    
    .social-btn span {
        font-size: var(--font-size-sm);
    }
}

/* ========== Print Styles ========== */
@media print {
    .theme-toggle,
    .results-actions,
    .sidebar {
        display: none !important;
    }
    
    body {
        padding-bottom: 0;
    }
}