/* ============================================================================
   VARIÁVEIS E CORES
   ============================================================================ */

:root {
    /* Cores Primárias */
    --primary: #0F3A7D;           /* Azul Marinho */
    --accent: #00D9FF;            /* Ciano Vibrante */
    
    /* Neutros */
    --white: #FFFFFF;
    --light-gray: #F5F7FA;
    --medium-gray: #E8EEF5;
    --dark-gray: #2C3E50;
    --text-gray: #7A8FA3;
    
    /* Espaçamento */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Transições */
    --transition: all 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================================================
   RESET E ESTILOS GLOBAIS
   ============================================================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--dark-gray);
    background-color: var(--white);
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    line-height: 1.2;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

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

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

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

/* ============================================================================
   CONTAINER
   ============================================================================ */

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
}

/* ============================================================================
   BOTÕES
   ============================================================================ */

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    font-family: 'Inter', sans-serif;
}

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

.btn-primary:hover {
    background-color: #0a2a5c;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(15, 58, 125, 0.3);
}

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

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

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

.btn-white:hover {
    background-color: var(--light-gray);
}

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

.btn-accent:hover {
    background-color: #00b8d4;
}

.btn-cta {
    padding: 0.75rem 1.5rem;
}

/* ============================================================================
   HEADER
   ============================================================================ */

.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--white);
    border-bottom: 1px solid var(--medium-gray);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 4rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 700;
    color: var(--primary);
}

.logo-icon {
    width: 2rem;
    height: 2rem;
    background-color: var(--primary);
    color: var(--white);
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.logo-text {
    font-size: 1.125rem;
    display: none;
}

@media (min-width: 640px) {
    .logo-text {
        display: inline;
    }
}

.nav {
    display: none;
    gap: var(--spacing-lg);
}

@media (min-width: 768px) {
    .nav {
        display: flex;
    }
}

.nav-link {
    color: var(--dark-gray);
    font-weight: 500;
    font-size: 0.875rem;
}

.nav-link:hover {
    color: var(--primary);
}

.menu-toggle {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

@media (min-width: 768px) {
    .menu-toggle {
        display: none;
    }
}

.menu-toggle span {
    width: 1.5rem;
    height: 2px;
    background-color: var(--dark-gray);
    transition: var(--transition);
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(0.5rem, 0.5rem);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(0.4rem, -0.4rem);
}

.mobile-menu {
    display: none;
    flex-direction: column;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background-color: var(--white);
    border-top: 1px solid var(--medium-gray);
}

.mobile-menu.active {
    display: flex;
}

@media (min-width: 768px) {
    .mobile-menu {
        display: none !important;
    }
}

/* ============================================================================
   HERO SECTION
   ============================================================================ */

.hero {
    position: relative;
    padding: 5rem var(--spacing-sm) 7rem;
    overflow: hidden;
}

@media (min-width: 768px) {
    .hero {
        padding: 8rem var(--spacing-sm) 10rem;
    }
}

.hero-background {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #0F3A7D 0%, #1e5a96 50%, #00D9FF 100%);
    z-index: -2;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgba(255, 255, 255, 1) 0%, rgba(255, 255, 255, 0.8) 50%, transparent 100%);
    z-index: -1;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 600px;
}

.hero-title {
    font-size: 2.5rem;
    line-height: 1.2;
    color: var(--primary);
    margin-bottom: var(--spacing-md);
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 3.5rem;
    }
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--dark-gray);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

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

@media (min-width: 640px) {
    .hero-buttons {
        flex-direction: row;
    }
}

/* ============================================================================
   SEÇÃO DE SERVIÇOS
   ============================================================================ */

.servicos {
    padding: var(--spacing-2xl) var(--spacing-sm);
    background-color: var(--light-gray);
}

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

.section-header h2 {
    color: var(--primary);
}

.section-header p {
    font-size: 1.125rem;
    color: var(--text-gray);
    max-width: 600px;
    margin: 0 auto;
}

.servicos-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media (min-width: 768px) {
    .servicos-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.servico-card {
    background-color: var(--white);
    border-radius: 0.5rem;
    padding: var(--spacing-lg);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.servico-card:hover {
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    transform: translateY(-5px) scale(1.02);
}

.servico-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.servico-card h3 {
    color: var(--primary);
}

.servico-card p {
    color: var(--text-gray);
    font-size: 0.95rem;
}

/* ============================================================================
   DIVISOR
   ============================================================================ */

.divider {
    height: 1px;
    background: linear-gradient(to right, transparent, var(--accent), transparent);
    margin: var(--spacing-2xl) 0;
}

/* ============================================================================
   SEÇÃO DE FEATURES
   ============================================================================ */

.features {
    padding: var(--spacing-2xl) var(--spacing-sm);
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media (min-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

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

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.feature-item h3 {
    color: var(--primary);
}

.feature-item p {
    color: var(--text-gray);
}

/* ============================================================================
   CTA SECTION
   ============================================================================ */

.cta {
    background-color: var(--primary);
    color: var(--white);
    padding: var(--spacing-2xl) var(--spacing-sm);
    text-align: center;
}

.cta h2 {
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.cta p {
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
    color: rgba(255, 255, 255, 0.9);
}

.cta-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    justify-content: center;
}

@media (min-width: 640px) {
    .cta-buttons {
        flex-direction: row;
    }
}

/* ============================================================================
   FOOTER
   ============================================================================ */

.footer {
    background-color: var(--primary);
    color: rgba(255, 255, 255, 0.9);
    padding: var(--spacing-2xl) var(--spacing-sm);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.footer-column h3 {
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

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

.footer-column ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-column a {
    color: rgba(255, 255, 255, 0.8);
}

.footer-column a:hover {
    color: var(--accent);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    align-items: center;
    justify-content: space-between;
}

@media (min-width: 768px) {
    .footer-bottom {
        flex-direction: row;
    }
}

.footer-bottom p {
    margin: 0;
    font-size: 0.875rem;
}

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

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    color: var(--white);
    font-weight: 600;
    font-size: 0.75rem;
}

.social-links a:hover {
    background-color: var(--accent);
    color: var(--primary);
}

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

@media (max-width: 640px) {
    h2 {
        font-size: 1.875rem;
    }

    .hero-title {
        font-size: 2rem;
    }

    .btn {
        width: 100%;
    }
}