/*
 * ConfortClean - Landing Page Stylesheet V2
 * Material Design 3 Implementation
 * Com: Ícones Animados, Instagram Feed Auto, Carrossel de Depoimentos
 */

/* ==================== CSS CUSTOM PROPERTIES (Material Design 3 Tokens) ==================== */
:root {
    /* Cores da Marca ConfortClean */
    --color-primary: #083864;
    --color-primary-rgb: 8, 56, 100;
    --color-secondary: #6ce093;
    --color-secondary-rgb: 108, 224, 147;
    --color-dark: #383638;
    --color-dark-rgb: 56, 54, 56;
    --color-white: #ffffff;
    --color-white-rgb: 255, 255, 255;

    /* Material Design 3 Surface Colors */
    --mat-sys-surface: #fafafa;
    --mat-sys-surface-variant: #f5f5f5;
    --mat-sys-surface-container: #eeeeee;
    --mat-sys-surface-container-high: #e0e0e0;

    /* Material Design 3 State Layers */
    --mat-sys-state-hover: rgba(0, 0, 0, 0.08);
    --mat-sys-state-pressed: rgba(0, 0, 0, 0.12);
    --mat-sys-state-focus: rgba(0, 0, 0, 0.12);

    /* Typography - Montserrat */
    --font-family-primary: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-family-display: 'Montserrat', sans-serif;

    /* Material Design 3 Type Scale */
    --type-display-large: 700 57px/64px var(--font-family-display);
    --type-display-medium: 700 45px/52px var(--font-family-display);
    --type-display-small: 700 36px/44px var(--font-family-display);
    --type-headline-large: 600 32px/40px var(--font-family-primary);
    --type-headline-medium: 600 28px/36px var(--font-family-primary);
    --type-headline-small: 600 24px/32px var(--font-family-primary);
    --type-title-large: 600 22px/28px var(--font-family-primary);
    --type-title-medium: 500 16px/24px var(--font-family-primary);
    --type-title-small: 500 14px/20px var(--font-family-primary);
    --type-body-large: 400 16px/24px var(--font-family-primary);
    --type-body-medium: 400 14px/20px var(--font-family-primary);
    --type-body-small: 400 12px/16px var(--font-family-primary);
    --type-label-large: 500 14px/20px var(--font-family-primary);
    --type-label-medium: 500 12px/16px var(--font-family-primary);

    /* Elevation (Material Design 3) */
    --elevation-1: 0 1px 2px rgba(0, 0, 0, 0.3), 0 1px 3px 1px rgba(0, 0, 0, 0.15);
    --elevation-2: 0 1px 2px rgba(0, 0, 0, 0.3), 0 2px 6px 2px rgba(0, 0, 0, 0.15);
    --elevation-3: 0 4px 8px 3px rgba(0, 0, 0, 0.15), 0 1px 3px rgba(0, 0, 0, 0.3);
    --elevation-4: 0 6px 10px 4px rgba(0, 0, 0, 0.15), 0 2px 3px rgba(0, 0, 0, 0.3);
    --elevation-5: 0 8px 12px 6px rgba(0, 0, 0, 0.15), 0 4px 4px rgba(0, 0, 0, 0.3);

    /* Spacing Scale */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
    --spacing-4xl: 96px;

    /* Border Radius (Material Design 3) */
    --radius-xs: 4px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-2xl: 28px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Container Max Width */
    --container-max-width: 1200px;
    --container-padding: var(--spacing-md);
}

/* ==================== RESET & BASE STYLES ==================== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font: var(--type-body-large);
    color: var(--color-dark);
    background-color: var(--mat-sys-surface);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* ==================== UTILITY CLASSES ==================== */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    font: var(--type-headline-large);
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.section-description {
    font: var(--type-body-large);
    color: rgba(var(--color-dark-rgb), 0.7);
    margin: 0 auto;
}

/* ==================== HEADER / TOP APP BAR ==================== */
.top-app-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: var(--color-white);
    box-shadow: var(--elevation-2);
    transition: transform var(--transition-base);
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo-link {
    display: flex;
    align-items: center;
}

.logo {
    height: 50px;
    width: auto;
}

.nav-menu {
    display: none;
}

.nav-list {
    display: flex;
    gap: var(--spacing-lg);
}

.nav-link {
    font: var(--type-label-large);
    font-weight: 600;
    color: var(--color-dark);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-full);
    transition: background-color var(--transition-fast);
    position: relative;
}

.nav-link:hover {
    background-color: var(--mat-sys-state-hover);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 80%;
    height: 2px;
    background-color: var(--color-secondary);
    transition: transform var(--transition-base);
}

.nav-link:hover::after {
    transform: translateX(-50%) scaleX(1);
}

.menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    color: var(--color-primary);
    transition: background-color var(--transition-fast);
}

.menu-toggle:hover {
    background-color: var(--mat-sys-state-hover);
}

/* ==================== HERO SECTION ==================== */
.hero-section {
    position: relative;
    padding: calc(80px + var(--spacing-3xl)) 0 var(--spacing-3xl);
    overflow: hidden;
    background: linear-gradient(135deg, 
        rgba(var(--color-primary-rgb), 0.05) 0%, 
        rgba(var(--color-secondary-rgb), 0.05) 100%);
}

.hero-content {
    display: grid;
    gap: var(--spacing-2xl);
    align-items: center;
}

.hero-text {
    text-align: center;
}

.hero-title {
    font: var(--type-display-medium);
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.hero-subtitle {
    font: var(--type-headline-small);
    color: var(--color-secondary);
    margin-bottom: var(--spacing-lg);
    font-weight: 600;
}

.hero-description {
    font: var(--type-body-large);
    color: rgba(var(--color-dark-rgb), 0.8);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-image {
    position: relative;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--elevation-4);
}

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

.hero-background {
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: linear-gradient(135deg, 
        transparent 0%, 
        rgba(var(--color-secondary-rgb), 0.1) 100%);
    z-index: -1;
    pointer-events: none;
}

/* ==================== BUTTONS (Material Design 3) ==================== */
.btn-filled,
.btn-outlined,
.btn-tonal {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    font: var(--type-label-large);
    font-weight: 600;
    padding: 12px 24px;
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.btn-filled {
    background-color: var(--color-primary);
    color: var(--color-white);
    box-shadow: var(--elevation-1);
}

.btn-filled:hover {
    background-color: rgba(var(--color-primary-rgb), 0.9);
    box-shadow: var(--elevation-2);
}

.btn-filled:active {
    box-shadow: var(--elevation-1);
}

.btn-outlined {
    background-color: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
}

.btn-outlined:hover {
    background-color: rgba(var(--color-primary-rgb), 0.08);
}

.btn-tonal {
    background-color: rgba(var(--color-secondary-rgb), 0.2);
    color: var(--color-primary);
}

.btn-tonal:hover {
    background-color: rgba(var(--color-secondary-rgb), 0.3);
    box-shadow: var(--elevation-1);
}

.btn-cta {
    padding: 16px 32px;
    font-size: 16px;
}

.btn-filled .material-symbols-outlined,
.btn-outlined .material-symbols-outlined,
.btn-tonal .material-symbols-outlined {
    font-size: 20px;
}
/* ==================== SERVICES SECTION COM ÍCONES ANIMADOS ==================== */
.services-section {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-white);
}

.services-grid {
    display: grid;
    gap: var(--spacing-xl);
}

.service-card {
    background-color: var(--mat-sys-surface);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--elevation-1);
    transition: all var(--transition-base);
    border: 1px solid rgba(var(--color-primary-rgb), 0.1);
}

.service-card:hover {
    box-shadow: var(--elevation-3);
    transform: translateY(-4px);
    border-color: var(--color-secondary);
}

/* Ícones Animados dos Serviços */
.card-icon-wrapper {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, 
        rgba(var(--color-primary-rgb), 0.1), 
        rgba(var(--color-secondary-rgb), 0.1));
    border-radius: var(--radius-lg);
    position: relative;
    overflow: hidden;
}

.card-icon-animated {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-main {
    font-size: 48px;
    color: var(--color-primary);
    z-index: 2;
    transition: transform var(--transition-slow);
}

.icon-sparkle {
    position: absolute;
    font-size: 24px;
    color: var(--color-secondary);
    opacity: 0;
    transform: scale(0) rotate(0deg);
    transition: all var(--transition-slow);
    font-variation-settings: 'FILL' 1;
}

/* Animação ao hover no card */
.service-card:hover .icon-main {
    transform: scale(1.1);
}

.service-card:hover .icon-sparkle {
    opacity: 1;
    transform: scale(1) rotate(360deg);
    animation: sparkle 2s ease-in-out infinite;
}

@keyframes sparkle {
    0%, 100% {
        transform: scale(1) rotate(0deg);
        opacity: 0.6;
    }
    50% {
        transform: scale(1.2) rotate(180deg);
        opacity: 1;
    }
}

/* Efeito de brilho no background do ícone */
.card-icon-wrapper::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        45deg,
        transparent,
        rgba(var(--color-secondary-rgb), 0.3),
        transparent
    );
    transform: rotate(45deg);
    transition: all 0.6s ease;
    opacity: 0;
}

.service-card:hover .card-icon-wrapper::before {
    opacity: 1;
    animation: shine 1.5s ease-in-out infinite;
}

@keyframes shine {
    0% {
        transform: translateX(-100%) translateY(-100%) rotate(45deg);
    }
    100% {
        transform: translateX(100%) translateY(100%) rotate(45deg);
    }
}

.card-title {
    font: var(--type-title-large);
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.card-description {
    font: var(--type-body-medium);
    color: rgba(var(--color-dark-rgb), 0.8);
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

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

.card-features li {
    font: var(--type-body-small);
    color: rgba(var(--color-dark-rgb), 0.7);
    padding-left: var(--spacing-lg);
    position: relative;
}

.card-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-secondary);
    font-weight: 700;
}

/* ==================== PORTFOLIO / INSTAGRAM FEED SECTION ==================== */
.portfolio-section {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(180deg, 
        var(--color-white) 0%, 
        rgba(var(--color-secondary-rgb), 0.05) 100%);
}

.instagram-embed-wrapper {
    margin-bottom: var(--spacing-xl);
    min-height: 400px;
}

/* Estilos para o Curator.io Feed */
#curator-feed-default-feed-layout {
    width: 100%;
}

.crt-logo {
    display: none !important; /* Oculta logo do Curator */
}

/* Fallback para carregamento */
.instagram-feed-fallback {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    background-color: var(--mat-sys-surface);
    border-radius: var(--radius-xl);
}

.fallback-message {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    font: var(--type-body-large);
    color: rgba(var(--color-dark-rgb), 0.6);
}

.fallback-message .material-symbols-outlined {
    font-size: 48px;
    color: var(--color-secondary);
}

.portfolio-cta {
    text-align: center;
}

/* ==================== TESTIMONIALS SECTION (CARROSSEL INFINITO) ==================== */
.testimonials-section {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-white);
    overflow: hidden;
}

.testimonials-carousel {
    margin-bottom: var(--spacing-xl);
    overflow: hidden;
    position: relative;
}

.testimonials-track {
    display: flex;
    flex-direction: row;
    gap: var(--spacing-lg);
    width: max-content;
    animation: scroll-testimonials 30s linear infinite;
    will-change: transform;
}

/* Pausa a animação ao hover */
.testimonials-track:hover {
    animation-play-state: paused;
}

@keyframes scroll-testimonials {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

.testimonial-card {
    flex-shrink: 0;
    width: 320px;
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--elevation-2);
    transition: all var(--transition-base);
    background-color: var(--mat-sys-surface);
}

.testimonial-card:hover {
    box-shadow: var(--elevation-4);
    transform: scale(1.05);
}

.testimonial-image {
    width: 100%;
    height: auto;
    min-height: 200px;
    max-height: 600px;
    position: relative;
    overflow: hidden;
}

.testimonial-image img {
    width: 100%;
    height: 100%;
    object-fit: contain; /* Mantém proporção sem cortar */
    background-color: var(--color-white);
    display: block;
}

.testimonial-overlay {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 48px;
    height: 48px;
    background-color: rgba(var(--color-secondary-rgb), 0.9);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--elevation-2);
}

.testimonial-overlay .material-symbols-outlined {
    font-size: 28px;
    color: var(--color-primary);
    font-variation-settings: 'FILL' 1;
}

/* Duplica os testimonials para loop infinito suave */
.testimonials-track::after {
    content: '';
    position: absolute;
    top: 0;
    left: 100%;
    width: 100%;
    height: 100%;
}

.testimonials-info {
    text-align: center;
    margin-top: var(--spacing-xl);
}

.testimonials-info p {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    font: var(--type-body-small);
    color: rgba(var(--color-dark-rgb), 0.6);
    background-color: rgba(var(--color-secondary-rgb), 0.1);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-full);
}

.testimonials-info .material-symbols-outlined {
    font-size: 18px;
}

/* Responsivo - Ajusta velocidade em telas menores */
@media (max-width: 600px) {
    .testimonial-card {
        width: 280px;
    }

    .testimonials-track {
        animation-duration: 40s;
    }
}

/* ==================== REVIEWS / GOOGLE BUSINESS SECTION ==================== */
.reviews-section {
    padding: var(--spacing-3xl) 0;
    background-color: var(--mat-sys-surface);
}

.reviews-card {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    padding: var(--spacing-2xl);
    background: linear-gradient(135deg, 
        rgba(var(--color-primary-rgb), 0.05), 
        rgba(var(--color-secondary-rgb), 0.05));
    border-radius: var(--radius-2xl);
    border: 2px solid rgba(var(--color-secondary-rgb), 0.3);
}

.reviews-icon {
    display: flex;
    gap: var(--spacing-xs);
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.star-icon {
    font-size: 48px;
    color: #fbbf24;
    font-variation-settings: 'FILL' 1;
}

.reviews-title {
    font: var(--type-headline-medium);
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.reviews-description {
    font: var(--type-body-large);
    color: rgba(var(--color-dark-rgb), 0.8);
    margin-bottom: var(--spacing-xl);
}

/* ==================== CONTACT SECTION ==================== */
.contact-section {
    padding: var(--spacing-3xl) 0;
    background-color: var(--mat-sys-surface);
}

.contact-wrapper {
    display: grid;
    gap: var(--spacing-2xl);
}

.contact-info {
    background-color: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--elevation-2);
}

.info-title {
    font: var(--type-title-large);
    color: var(--color-primary);
    margin-bottom: var(--spacing-lg);
}

.info-item {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    background-color: #FFFFFF;
    border-radius: 10px;
    padding: var(--spacing-lg);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    border-top: 4px solid #6CE093;
    transition: all var(--transition-base);
}

.info-item:hover {
    border-top-color: rgba(108, 224, 147, 0.8);
}

.info-item .material-symbols-outlined {
    font-size: 24px;
    color: #6CE093;
    flex-shrink: 0;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.2));
    transition: color var(--transition-base);
}

.info-item:hover .material-symbols-outlined {
    color: rgba(108, 224, 147, 0.8);
}

.info-content {
    flex: 1;
}

.info-content strong {
    display: block;
    font: var(--type-title-small);
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.info-content a {
    color: var(--color-primary);
    transition: color var(--transition-fast);
}

.info-content a:hover {
    color: var(--color-secondary);
}

.info-content p {
    font: var(--type-body-medium);
    color: rgba(var(--color-dark-rgb), 0.8);
}

/* Premium word styling */
.shimmer-text {
    color: #083864;
    font-weight: 700;
    font-style: italic;
}

/* ==================== CONTACT FORM ==================== */
.contact-form-wrapper {
    background-color: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--elevation-2);
}

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

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

.form-label {
    font: var(--type-label-large);
    color: var(--color-primary);
    font-weight: 600;
}

.form-input,
.form-textarea {
    font: var(--type-body-medium);
    padding: 14px 16px;
    border: 1px solid rgba(var(--color-dark-rgb), 0.2);
    border-radius: var(--radius-sm);
    background-color: var(--mat-sys-surface);
    color: var(--color-dark);
    transition: all var(--transition-fast);
}

.form-input:hover,
.form-textarea:hover {
    border-color: rgba(var(--color-primary-rgb), 0.4);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    border-width: 2px;
    background-color: var(--color-white);
    box-shadow: 0 0 0 4px rgba(var(--color-primary-rgb), 0.1);
}

.form-input:invalid:not(:placeholder-shown),
.form-textarea:invalid:not(:placeholder-shown) {
    border-color: #dc2626;
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.btn-submit {
    width: 100%;
    margin-top: var(--spacing-md);
}

.form-status {
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    font: var(--type-body-medium);
    text-align: center;
    display: none;
}

.form-status.success {
    display: block;
    background-color: rgba(var(--color-secondary-rgb), 0.2);
    color: #065f46;
}

.form-status.error {
    display: block;
    background-color: #fee2e2;
    color: #991b1b;
}
/* ==================== FOOTER ==================== */
.footer {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-brand {
    text-align: center;
}

.footer-logo {
    height: 50px;
    width: auto;
    margin: 0 auto var(--spacing-md);
    /* filter removido para manter cores originais da logo branca */
}

.footer-tagline {
    font: var(--type-body-medium);
    color: rgba(var(--color-white-rgb), 0.8);
}

.footer-title {
    font: var(--type-title-medium);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--color-secondary);
}

.footer-text {
    font: var(--type-body-small);
    color: rgba(var(--color-white-rgb), 0.8);
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.footer-text a {
    transition: color var(--transition-fast);
}

.footer-text a:hover {
    color: var(--color-secondary);
}

.footer-info,
.footer-contact,
.footer-social {
    text-align: center;
}

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    background-color: rgba(var(--color-white-rgb), 0.1);
    color: var(--color-white);
    transition: all var(--transition-fast);
}

.social-link:hover {
    background-color: var(--color-secondary);
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(var(--color-white-rgb), 0.1);
}

.copyright {
    font: var(--type-body-small);
    color: rgba(var(--color-white-rgb), 0.6);
}

/* ==================== FLOATING ACTION BUTTON (FAB) ==================== */
.fab {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: 999;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #25d366; /* WhatsApp Green */
    color: var(--color-white);
    border-radius: var(--radius-full);
    box-shadow: var(--elevation-3);
    transition: all var(--transition-base);
}

.fab:hover {
    transform: scale(1.1);
    box-shadow: var(--elevation-5);
}

.fab:active {
    transform: scale(0.95);
}

/* Animação de pulso no FAB */
.fab::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: var(--radius-full);
    background-color: #25d366;
    animation: pulse-fab 2s ease-out infinite;
    z-index: -1;
}

@keyframes pulse-fab {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    100% {
        transform: scale(1.3);
        opacity: 0;
    }
}

/* ==================== RESPONSIVE DESIGN ==================== */

/* Tablet (600px - Material Design 3 Breakpoint) */
@media (min-width: 600px) {
    :root {
        --container-padding: var(--spacing-lg);
    }

    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .contact-wrapper {
        grid-template-columns: 1fr 1.5fr;
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero-text {
        text-align: left;
    }

    .hero-description {
        margin-left: 0;
    }

    .testimonial-card {
        width: 350px;
    }
}

/* Laptop (905px - Material Design 3 Breakpoint) */
@media (min-width: 905px) {
    .nav-menu {
        display: block;
    }

    .menu-toggle {
        display: none;
    }

    .hero-content {
        grid-template-columns: 1fr 1fr;
    }

    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .footer-content {
        grid-template-columns: repeat(4, 1fr);
        text-align: left;
    }

    .footer-brand,
    .footer-info,
    .footer-contact,
    .footer-social {
        text-align: left;
    }

    .footer-logo {
        margin-left: 0;
    }

    .testimonial-card {
        width: 380px;
    }
}

/* Desktop (1240px - Material Design 3 Breakpoint) */
@media (min-width: 1240px) {
    :root {
        --container-padding: var(--spacing-xl);
    }

    .hero-title {
        font-size: 52px;
        line-height: 1.1;
    }

    .testimonial-card {
        width: 400px;
    }
}

/* Desktop Extra Large (1440px - Material Design 3 Breakpoint) */
@media (min-width: 1440px) {
    :root {
        --container-max-width: 1320px;
    }
}

/* ==================== MOBILE MENU STYLES ==================== */
@media (max-width: 904px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background-color: var(--color-white);
        box-shadow: var(--elevation-3);
        padding: var(--spacing-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease-out;
    }

    .nav-menu--open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-list {
        flex-direction: column;
        gap: 0;
    }

    .nav-link {
        display: block;
        padding: var(--spacing-md);
        border-radius: var(--radius-sm);
    }

    .menu-open {
        overflow: hidden;
    }
}

/* FAB visibility control */
.fab {
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease-out, visibility 0.3s ease-out, transform 0.2s ease-out;
}

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

    html {
        scroll-behavior: auto;
    }

    .testimonials-track {
        animation: none;
    }
}

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

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    .service-card,
    .contact-info,
    .contact-form-wrapper,
    .testimonial-card {
        border: 2px solid var(--color-primary);
    }
}

/* Erro de validação de formulário */
.form-input.error,
.form-textarea.error {
    border-color: #dc2626 !important;
    background-color: #fef2f2;
}

/* ==================== PRINT STYLES ==================== */
@media print {
    .top-app-bar,
    .fab,
    .hero-background,
    .testimonials-carousel {
        display: none;
    }

    body {
        background: white;
        color: black;
    }

    .service-card,
    .contact-info {
        break-inside: avoid;
    }
}

/* ==================== ANIMATION UTILITIES ==================== */
.animated {
    opacity: 1 !important;
    transform: translateY(0) !important;
}

/* Scroll reveal animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==================== LOADING STATES ==================== */
.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    border: 3px solid var(--mat-sys-surface-container);
    border-top-color: var(--color-primary);
    border-radius: var(--radius-full);
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}