/* ==========================================================================
   DESIGN SYSTEM - BCSC WEBSITE
   ========================================================================== */

/* 1. Google Fonts Import (Inter) */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&display=swap');

/* 2. Custom Variables */
:root {
    /* Color Palette */
    --color-dark: #111111;
    --color-light: #FFFFFF;
    --color-bg-light: #F5F5F5;
    --color-border: #D9D9D9;
    --color-accent: #0F4C81;
    --color-accent-hover: #0a355c;
    --color-accent-rgb: 15, 76, 129;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    
    /* Spacing System */
    --spacing-xs: 0.5rem;    /* 8px */
    --spacing-sm: 1rem;      /* 16px */
    --spacing-md: 1.5rem;    /* 24px */
    --spacing-lg: 3rem;      /* 48px */
    --spacing-xl: 5rem;      /* 80px */
    --spacing-xxl: 8rem;     /* 128px */
    
    /* Layout & Visuals */
    --max-width: 1200px;
    --header-height: 80px;
    --header-height-shrink: 70px;
    --border-radius: 4px;
    --transition-smooth: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* 3. Global Resets & Core Styles */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-primary);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-dark);
    background-color: var(--color-light);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography elements */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-dark);
}

h1 {
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    letter-spacing: -0.01em;
    margin-bottom: var(--spacing-md);
}

h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

p {
    font-weight: 400;
    font-size: 1rem;
    color: #4a4a4a;
    margin-bottom: var(--spacing-sm);
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-smooth);
}

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

button, input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

/* Utilities */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-xl) 0;
}

.section-bg {
    background-color: var(--color-bg-light);
}

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

.d-flex { display: flex; }
.d-grid { display: grid; }

/* Buttons & CTAs */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.85rem 2rem;
    font-weight: 500;
    font-size: 0.95rem;
    border-radius: var(--border-radius);
    transition: var(--transition-smooth);
    cursor: pointer;
    border: none;
    letter-spacing: 0.01em;
}

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

.btn-primary:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    background-color: var(--color-dark);
    color: var(--color-light);
    transform: translateY(-2px);
}

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

.btn-outline:hover {
    background-color: var(--color-accent);
    color: var(--color-light);
    transform: translateY(-2px);
}

/* WhatsApp Floating Button */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: #25D366;
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 10px rgba(0,0,0,0.15);
    z-index: 1000;
    transition: var(--transition-smooth);
}

.whatsapp-float:hover {
    transform: scale(1.1) translateY(-3px);
    background-color: #20ba59;
}

.whatsapp-float svg {
    width: 30px;
    height: 30px;
    fill: currentColor;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 100px;
    right: 30px;
    background-color: var(--color-accent);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 10px rgba(0,0,0,0.15);
    z-index: 1000;
    transition: var(--transition-smooth);
    opacity: 0;
    visibility: hidden;
    cursor: pointer;
    border: none;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: scale(1.1) translateY(-3px);
    background-color: var(--color-accent-hover);
}

.back-to-top svg {
    width: 24px;
    height: 24px;
    fill: currentColor;
}


/* ==========================================================================
   NAVIGATION & HEADER
   ========================================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: transparent !important;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    border-bottom: 1px solid transparent;
    z-index: 100;
    transition: var(--transition-smooth);
}

.header-scrolled {
    height: var(--header-height-shrink);
    background-color: rgba(255, 255, 255, 0.95) !important;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-bottom-color: var(--color-border);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
}

.header .container {
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 1.5rem;
    color: var(--color-light);
    transition: var(--transition-smooth);
}

.header-scrolled .logo {
    color: var(--color-dark);
}

.logo-symbol {
    width: 32px;
    height: 32px;
    background-color: var(--color-accent);
    color: var(--color-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.15rem;
    font-weight: 600;
    border-radius: var(--border-radius);
}

/* Nav Menu */
.navbar-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    align-items: center;
}

.navbar-links a {
    font-size: 0.95rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
    padding: 0.5rem 0;
    position: relative;
    transition: var(--transition-smooth);
}

.header-scrolled .navbar-links a {
    color: #555555;
}

.navbar-links a:hover,
.navbar-links a.active {
    color: var(--color-light);
}

.header-scrolled .navbar-links a:hover,
.header-scrolled .navbar-links a.active {
    color: var(--color-dark);
}

.navbar-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-light);
    transition: var(--transition-smooth);
}

.header-scrolled .navbar-links a::after {
    background-color: var(--color-accent);
}

.navbar-links a:hover::after,
.navbar-links a.active::after {
    width: 100%;
}

.nav-cta {
    margin-left: var(--spacing-sm);
}

.nav-cta .btn-primary {
    color: var(--color-light) !important;
}

.header-scrolled .nav-cta .btn-primary {
    color: var(--color-light) !important;
}

/* Hamburger Menu */
.hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 101;
}

.hamburger-box {
    width: 24px;
    height: 18px;
    display: block;
    position: relative;
}

.hamburger-inner {
    width: 100%;
    height: 2px;
    background-color: var(--color-light);
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    transition: var(--transition-smooth);
}

.header-scrolled .hamburger-inner {
    background-color: var(--color-dark);
}

.hamburger-inner::before,
.hamburger-inner::after {
    content: '';
    width: 100%;
    height: 2px;
    background-color: var(--color-light);
    position: absolute;
    left: 0;
    transition: var(--transition-smooth);
}

.header-scrolled .hamburger-inner::before,
.header-scrolled .hamburger-inner::after {
    background-color: var(--color-dark);
}

.hamburger-inner::before { top: -8px; }
.hamburger-inner::after { bottom: -8px; }

/* Open State Mobile Hamburger */
.hamburger.is-active .hamburger-inner {
    background-color: transparent;
}
.hamburger.is-active .hamburger-inner::before {
    transform: translateY(8px) rotate(45deg);
}
.hamburger.is-active .hamburger-inner::after {
    transform: translateY(-8px) rotate(-45deg);
}


/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero {
    width: 100%;
    min-height: 90vh;
    height: 90vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background-image:
        linear-gradient(
            to bottom,
            rgba(0, 0, 0, 0.7) 0%,
            rgba(0, 0, 0, 0.55) 20%,
            rgba(0, 0, 0, 0.55) 100%
        ),
        url('../img/hero_operation.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
}

.hero-container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 40px;
    height: 100%;
    display: flex;
    align-items: center;
}

.hero-content {
    max-width: 700px;
}

.hero-headline {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 700;
    line-height: 1.1;
    color: var(--color-light);
    margin-bottom: var(--spacing-sm);
    max-width: 700px;
}

.hero-subheadline {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 32px;
    line-height: 1.6;
    max-width: 650px;
}

.hero-ctas {
    display: flex;
    gap: 16px;
}

.hero .btn-primary {
    background-color: var(--color-accent);
    color: var(--color-light) !important;
}

.hero .btn-primary:hover {
    background-color: var(--color-accent-hover);
    color: var(--color-light) !important;
}

.hero .btn-secondary {
    background-color: transparent;
    color: var(--color-light);
    border: 1px solid var(--color-light);
}

.hero .btn-secondary:hover {
    background-color: var(--color-light);
    color: var(--color-dark);
}


/* ==========================================================================
   CREDIBILIDADE (Os 3 Pilares)
   ========================================================================== */
.credibility-section {
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.section-subtitle-small {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--color-accent);
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-xs);
}

.credibility-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.pilar-card {
    background-color: var(--color-light);
    padding: var(--spacing-md) var(--spacing-md);
    border-left: 3px solid var(--color-border);
    transition: var(--transition-smooth);
}

.pilar-card:hover {
    border-left-color: var(--color-accent);
    background-color: var(--color-bg-light);
}

.pilar-card h3 {
    margin-bottom: 0.5rem;
}

.pilar-card p {
    margin-bottom: 0;
    font-size: 0.95rem;
}


/* ==========================================================================
   SERVIÇOS (GRELHA MINIMALISTA)
   ========================================================================== */
.section-intro {
    max-width: 600px;
    margin-bottom: var(--spacing-lg);
}

.section-intro h2 {
    margin-bottom: var(--spacing-xs);
}

/* SERVIÇOS ESTRATÉGICOS - Cards Grandes */
.services-grid-strategic {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-md);
}

.service-card-strategic {
    background: var(--color-light);
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: var(--transition-smooth);
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.service-card-strategic:hover {
    border-color: var(--color-accent);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
    transform: translateY(-6px);
}

.service-card-strategic .service-card-image {
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background-color: var(--color-bg-light);
}

.service-card-strategic .service-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(20%);
    transition: var(--transition-smooth);
}

.service-card-strategic:hover .service-card-image img {
    filter: grayscale(0%);
    transform: scale(1.05);
}

.service-card-strategic .service-card-content {
    padding: var(--spacing-md);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

/* Checklist para serviços estratégicos */
.service-checklist {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.service-checklist li {
    font-size: 0.95rem;
    color: #555555;
    display: flex;
    align-items: center;
    gap: 8px;
}

.service-checklist li::before {
    content: '✓';
    color: var(--color-accent);
    font-weight: 600;
    font-size: 1.1rem;
}

/* SERVIÇOS COMPLEMENTARES - Cards Compactos */
.services-grid-complementary {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.service-card-complementary {
    background: var(--color-light);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
}

.service-card-complementary:hover {
    border-color: var(--color-accent);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.06);
    transform: translateY(-2px);
}

/* Checklist compacta para serviços complementares */
.service-checklist-compact {
    list-style: none;
    padding: 0;
    margin: var(--spacing-xs) 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.service-checklist-compact li {
    font-size: 0.85rem;
    color: #666666;
}

/* Link discreto para complementares */
.service-link-discrete {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-accent);
    text-decoration: none;
    margin-top: auto;
    padding-top: var(--spacing-sm);
    display: inline-block;
    transition: var(--transition-smooth);
}

.service-link-discrete:hover {
    color: var(--color-accent-hover);
    transform: translateX(4px);
}

/* ANTIGOS ESTILOS - Manter para compatibilidade com outras páginas */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.service-card {
    background: var(--color-light);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: var(--transition-smooth);
}

.service-card:hover {
    border-color: var(--color-accent);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.05);
    transform: translateY(-4px);
}

.service-card-image {
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background-color: var(--color-bg-light);
}

.service-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(20%);
    transition: var(--transition-smooth);
}

.service-card:hover .service-card-image img {
    filter: grayscale(0%);
    transform: scale(1.05);
}

.service-card-content {
    padding: var(--spacing-md);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.service-card-content p {
    font-size: 0.95rem;
    flex-grow: 1;
    margin-bottom: var(--spacing-md);
}

.service-card-link {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-accent);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    align-self: flex-start;
}

.service-card-link svg {
    transition: var(--transition-smooth);
}

.service-card-link:hover svg {
    transform: translateX(4px);
}


/* ==========================================================================
   DIFERENCIAL (Parceiros Operacionais)
   ========================================================================== */
.differential-grid {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.differential-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.diff-item {
    background-color: var(--color-light);
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
}

.diff-item h3 {
    color: var(--color-accent);
    margin-bottom: 0.5rem;
}

.diff-item p {
    margin-bottom: 0;
    font-size: 0.9rem;
}


/* ==========================================================================
   ABOUT & INTERNAS
   ========================================================================== */
.page-header {
    background-color: var(--color-bg-light);
    padding: var(--spacing-xl) 0 var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-border);
    padding-top: calc(var(--header-height) + var(--spacing-xl));
}

/* HERO GLOBAL PARA PÁGINAS DE SERVIÇO */
.service-hero {
    min-height: 60vh;
    display: flex;
    align-items: center;
    color: white;
    position: relative;
    padding-top: var(--header-height);
    background-size: cover !important;
    background-position: center !important;
    background-repeat: no-repeat !important;
}

.service-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.75) 0%, rgba(0, 0, 0, 0.65) 100%);
    z-index: 1;
}

.service-hero .container {
    position: relative;
    z-index: 2;
}

.service-hero h1,
.service-hero p {
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.page-title {
    margin-bottom: var(--spacing-xs);
}

.about-intro-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.about-highlight-box {
    background-color: var(--color-bg-light);
    border-left: 4px solid var(--color-accent);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    font-size: 1.15rem;
    font-weight: 500;
    line-height: 1.6;
    color: var(--color-dark);
}

.about-values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.value-item {
    border-top: 1px solid var(--color-border);
    padding-top: var(--spacing-sm);
}


/* ==========================================================================
   CONTACT & FORM
   ========================================================================== */
.contact-grid {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: var(--spacing-lg);
}

.contact-info-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact-info-item {
    display: flex;
    gap: var(--spacing-sm);
}

.contact-info-icon {
    width: 24px;
    height: 24px;
    color: var(--color-accent);
    flex-shrink: 0;
}

.contact-info-details h4 {
    font-size: 1rem;
    margin-bottom: 2px;
}

.contact-info-details p,
.contact-info-details a {
    font-size: 0.95rem;
    color: #555555;
    margin: 0;
}

.contact-info-details a:hover {
    color: var(--color-accent);
}

/* Contact Form Styling */
.contact-form-wrapper {
    background-color: var(--color-bg-light);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--color-dark);
}

.form-control {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 1px solid var(--color-border);
    background-color: var(--color-light);
    border-radius: var(--border-radius);
    font-size: 0.95rem;
    color: var(--color-dark);
    transition: var(--transition-smooth);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(15, 76, 129, 0.15);
}

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

/* Form Message Status Alert */
.form-status {
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
    font-size: 0.95rem;
    display: none;
}

.form-status.success {
    display: block;
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.form-status.error {
    display: block;
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}


/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
    background-color: var(--color-dark);
    color: var(--color-light);
    padding: var(--spacing-lg) 0 var(--spacing-md) 0;
    border-top: 3px solid var(--color-accent);
}

.footer h3,
.footer h4 {
    color: var(--color-light);
}

.footer p {
    color: #a0a0a0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-brand h3 {
    margin-bottom: var(--spacing-sm);
}

.footer-links-list {
    list-style: none;
}

.footer-links-list li {
    margin-bottom: 8px;
}

.footer-links-list a {
    color: #a0a0a0;
    font-size: 0.95rem;
}

.footer-links-list a:hover {
    color: var(--color-light);
    padding-left: 4px;
}

.footer-contact p {
    font-size: 0.95rem;
    margin-bottom: 8px;
}

.footer-bottom {
    border-top: 1px solid #222222;
    padding-top: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.footer-bottom p {
    font-size: 0.85rem;
    margin: 0;
}

.footer-bottom-links {
    display: flex;
    gap: var(--spacing-md);
}

.footer-bottom-links a {
    font-size: 0.85rem;
    color: #a0a0a0;
}

.footer-bottom-links a:hover {
    color: var(--color-light);
}
/* ==========================================================================
   CLUSTERS DE SERVIÇOS
   ========================================================================== */
.service-cluster {
    margin-bottom: var(--spacing-lg);
}

.service-cluster:last-child {
    margin-bottom: 0;
}

.service-cluster-title {
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-xs);
    border-bottom: 1px solid var(--color-border);
    position: relative;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.service-cluster-title::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 60px;
    height: 1px;
    background-color: var(--color-accent);
}

/* ==========================================================================
   ONDE ATUAMOS (Secção)
   ========================================================================== */
.where-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.where-card {
    background-color: var(--color-light);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    transition: var(--transition-smooth);
}

.where-card:hover {
    border-color: var(--color-accent);
    box-shadow: 0 8px 25px rgba(0,0,0,0.04);
    transform: translateY(-3px);
}

.where-card-icon {
    width: 36px;
    height: 36px;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.where-card-icon svg {
    width: 100%;
    height: 100%;
}

.where-card h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.where-card p {
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 0;
    color: #555555;
}

/* ==========================================================================
   DIFERENCIAIS (Secção Evoluída)
   ========================================================================== */
.diff-grid-comp {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.diff-card-comp {
    background-color: var(--color-light);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
}

.diff-card-comp:hover {
    border-color: var(--color-accent);
    box-shadow: 0 8px 25px rgba(0,0,0,0.04);
    transform: translateY(-3px);
}

.diff-card-icon-comp {
    width: 36px;
    height: 36px;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.diff-card-icon-comp svg {
    width: 100%;
    height: 100%;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.5;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.diff-card-comp h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.diff-card-comp p {
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 0;
    color: #555555;
}


/* ==========================================================================
   RESPONSIVENESS (Media Queries)
   ========================================================================== */

@media (max-width: 1024px) {
    .hero {
        height: 80vh;
        min-height: 80vh;
        background-attachment: scroll;
    }
    
    .hero-container {
        padding: 0 var(--spacing-md);
    }
    
    .hero-content {
        max-width: 100%;
        text-align: center;
    }
    
    .hero-headline {
        font-size: clamp(2.2rem, 6vw, 3.5rem);
    }
    
    .hero-subheadline {
        font-size: 1.05rem;
    }
    
    .hero-ctas {
        justify-content: center;
    }
    
    .credibility-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .services-grid,
    .services-grid-strategic {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .services-grid-complementary {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .where-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .differential-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .about-intro-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .about-values-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .diff-grid-comp {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .hero {
        height: 75vh;
        min-height: 75vh;
    }
    
    .hero-container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero-headline {
        font-size: clamp(2.2rem, 8vw, 3.5rem);
    }
    
    .hero-subheadline {
        font-size: 1.05rem;
    }
    
    .hero-ctas {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-ctas .btn {
        width: 100%;
    }
    
    /* Navbar Mobile */
    .hamburger {
        display: block;
    }
    
    .navbar-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background-color: var(--color-light);
        flex-direction: column;
        justify-content: flex-start;
        align-items: flex-start;
        padding: 100px var(--spacing-md) var(--spacing-md) var(--spacing-md);
        gap: var(--spacing-md);
        box-shadow: -4px 0 30px rgba(0, 0, 0, 0.1);
        transition: var(--transition-smooth);
        z-index: 99;
    }
    
    .navbar-links a {
        color: #555555 !important;
    }
    
    .navbar-links.is-open {
        right: 0;
    }
    
    .nav-cta {
        margin-left: 0;
        width: 100%;
    }
    
    .nav-cta a {
        display: flex;
        width: 100%;
    }
    
    .services-grid,
    .services-grid-strategic,
    .services-grid-complementary {
        grid-template-columns: 1fr;
    }
    
    .where-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .differential-list {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .whatsapp-float {
        bottom: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
    }
    
    .whatsapp-float svg {
        width: 25px;
        height: 25px;
    }
    
    .back-to-top {
        bottom: 80px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
    
    .back-to-top svg {
        width: 20px;
        height: 20px;
    }
    
    .diff-grid-comp {
        grid-template-columns: 1fr;
    }
}

/* ==========================================================================
   SOLUÇÕES COMPLEMENTARES (Redesenho Premium)
   ========================================================================== */
.comp-services-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    justify-content: center;
    margin-top: var(--spacing-lg);
}

.comp-service-card {
    flex: 1 1 calc(33.333% - var(--spacing-md));
    max-width: calc(33.333% - (var(--spacing-md) * 2 / 3));
    background: var(--color-light);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: var(--transition-smooth);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.02);
}

.comp-service-card:hover {
    border-color: var(--color-accent);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
    transform: translateY(-4px);
}

.comp-service-card .card-image {
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background-color: var(--color-bg-light);
}

.comp-service-card .card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.95;
    transition: transform 0.5s ease, opacity 0.3s ease;
}

.comp-service-card:hover .card-image img {
    opacity: 1;
    transform: scale(1.08);
}

.comp-service-card .card-content {
    padding: var(--spacing-md);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.comp-service-card h4 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-dark);
}

.comp-service-card p {
    font-size: 0.9rem;
    color: #555555;
    margin-bottom: var(--spacing-sm);
    line-height: 1.5;
    flex-grow: 1;
}

.comp-service-checklist {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--spacing-md) 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.comp-service-checklist li {
    font-size: 0.85rem;
    color: #666666;
    display: flex;
    align-items: center;
    gap: 8px;
}

.comp-service-checklist li svg {
    flex-shrink: 0;
    color: var(--color-accent);
}

.comp-service-link {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-accent);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: auto;
    align-self: flex-start;
    transition: var(--transition-smooth);
}

.comp-service-link svg {
    transition: var(--transition-smooth);
}

.comp-service-link:hover {
    color: var(--color-accent-hover);
}

.comp-service-link:hover svg {
    transform: translateX(4px);
}

/* Responsividade para Soluções Complementares */
@media (max-width: 1024px) {
    .comp-service-card {
        flex: 1 1 calc(50% - var(--spacing-md));
        max-width: calc(50% - (var(--spacing-md) / 2));
    }
}

@media (max-width: 768px) {
    .comp-service-card {
        flex: 1 1 100%;
        max-width: 100%;
    }
}

/* ==========================================================================
   LANGUAGE SELECTOR DROPDOWN (PT, EN, FR, ZH)
   ========================================================================== */
.nav-lang {
    margin-left: 0.5rem;
    position: relative;
    display: inline-flex;
    align-items: center;
}

.lang-dropdown {
    position: relative;
}

.lang-dropbtn {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.35);
    color: rgba(255, 255, 255, 0.95);
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
    font-weight: 500;
    border-radius: var(--border-radius);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.lang-dropbtn:hover {
    border-color: rgba(255, 255, 255, 0.8);
    background-color: rgba(255, 255, 255, 0.05);
}

.lang-chevron {
    transition: transform 0.3s ease;
}

.lang-dropdown:hover .lang-chevron {
    transform: rotate(180deg);
}

/* Header scrolled state adaptations */
.header-scrolled .lang-dropbtn {
    color: #555555;
    border-color: var(--color-border);
}

.header-scrolled .lang-dropbtn:hover {
    border-color: var(--color-dark);
    color: var(--color-dark);
    background-color: rgba(0, 0, 0, 0.03);
}

/* Dropdown Menu styling */
.lang-dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    background-color: var(--color-light);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    display: flex;
    flex-direction: column;
    min-width: 160px;
    z-index: 110;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition-smooth);
}

.lang-dropdown:hover .lang-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-dropdown-menu a {
    padding: 0.6rem 1rem;
    font-size: 0.85rem;
    color: var(--color-dark) !important;
    display: block;
    width: 100%;
    transition: var(--transition-smooth);
    border-bottom: 1px solid rgba(0, 0, 0, 0.03);
    text-align: left;
}

.lang-dropdown-menu a:last-child {
    border-bottom: none;
}

.lang-dropdown-menu a:hover {
    background-color: var(--color-bg-light);
    color: var(--color-accent) !important;
}

.lang-dropdown-menu a.active {
    background-color: rgba(var(--color-accent-rgb), 0.05);
    color: var(--color-accent) !important;
    font-weight: 600;
}

/* Mobile responsive styles */
@media (max-width: 768px) {
    .nav-lang {
        width: 100%;
        margin-left: 0;
        margin-top: var(--spacing-xs);
        margin-bottom: var(--spacing-xs);
    }
    
    .lang-dropdown {
        width: 100%;
    }
    
    .lang-dropbtn {
        width: 100%;
        justify-content: space-between;
        color: #555555;
        border-color: var(--color-border);
        padding: 0.6rem 1rem;
    }
    
    /* Disable hover-based menu display on mobile */
    .lang-dropdown:hover .lang-dropdown-menu {
        opacity: 0;
        visibility: hidden;
        transform: translateY(10px);
    }
    
    /* Toggle active class styles */
    .lang-dropdown.is-open .lang-dropdown-menu {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
        position: static;
        width: 100%;
        box-shadow: none;
        border-left: 2px solid var(--color-accent);
        border-top: none;
        border-right: none;
        border-bottom: none;
        margin-top: 4px;
        background-color: var(--color-bg-light);
        border-radius: 0;
    }
    
    .lang-dropdown.is-open .lang-chevron {
        transform: rotate(180deg);
    }
    
    .lang-dropdown-menu a {
        padding: 0.65rem 1.25rem;
    }
}