/* =========================================
   1. VARIÁVEIS E RESET (A Base do Design)
   ========================================= */
:root {
    /* Paleta BTM Automações & BI */
    --color-primary: #004B23;   /* Verde Esmeralda (Corporativo) */
    --color-secondary: #2F3E46; /* Cinza Chumbo (Texto/Detalhes) */
    --color-accent: #52B788;    /* Verde Claro (Destaques/Botões) */
    --color-light: #E9ECEF;     /* Cinza Gelo (Fundos Gerais) */
    --color-ice-green: #F2F9F4; /* Verde Gelo (Fundo Hero e Cases) */
    --color-white: #ffffff;
    --color-text: #333333;
    
    /* Fontes */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Roboto', sans-serif;
}

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

body {
    font-family: var(--font-body);
    color: var(--color-text);
    background-color: #f9f9f9;
    line-height: 1.6;
    scroll-behavior: smooth;
}

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    color: var(--color-secondary);
    font-weight: 700;
}

a {
    text-decoration: none;
    transition: 0.3s;
}

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* =========================================
   2. BOTÕES (O Estilo BTM)
   ========================================= */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    font-family: var(--font-heading);
    transition: all 0.3s ease;
    text-align: center;
}

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

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

.btn-dark {
    background-color: #000000;
    color: #ffffff;
    border: 2px solid #000000;
    padding: 10px 25px;
}

.btn-dark:hover {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}

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

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

.btn-light {
    background-color: var(--color-white);
    color: var(--color-primary);
    font-weight: bold;
}

/* =========================================
   3. HEADER (Cabeçalho Estilo Devnology)
   ========================================= */
.header {
    background-color: var(--color-white);
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 15px 0;
}

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

.logo-img {
    height: 45px;
    width: auto;
}

.nav-menu ul {
    display: flex;
    gap: 40px;
}

.nav-menu a {
    color: #1a1a1a;
    font-weight: 500;
    position: relative;
}

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

.nav-menu a::after {
    content: '';
    display: block;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width 0.3s;
    position: absolute;
    bottom: -5px;
}

.nav-menu a:hover::after {
    width: 100%;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.lang-selector {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-weight: 600;
}

.flag-icon {
    width: 24px;
    border-radius: 2px;
}

.arrow-icon {
    font-size: 0.8rem;
    transform: rotate(180deg);
}

/* =========================================
   4. HERO SECTION (Fundo Verde Gelo)
   ========================================= */
.hero {
    background-color: var(--color-ice-green);
    color: var(--color-secondary);
    padding: 140px 0 100px 0;
    text-align: center;
}

.hero-title {
    font-size: 3rem;
    margin-bottom: 20px;
}

.highlight {
    color: var(--color-primary);
    font-weight: 800;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 40px;
    color: #555;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
}

/* =========================================
   5. SERVIÇOS (Estilo Clean - Sem Emojis)
   ========================================= */
.services {
    padding: 100px 0;
    background-color: var(--color-white);
}

.section-header {
    text-align: center;
    margin-bottom: 70px;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    color: var(--color-primary);
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.card {
    background: #fff;
    border: 1px solid #eee;
    border-radius: 16px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
    transition: 0.3s;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 75, 35, 0.1);
}

.card-icon {
    margin-bottom: 25px;
    height: 90px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.card-icon img {
    max-height: 100%;
    max-width: 90px;
}

.card h3 {
    margin-bottom: 15px;
    font-size: 1.4rem;
}

.card-desc {
    font-size: 0.95rem;
    color: #666;
    margin-bottom: 30px;
}

.card-topics {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.card-topics li {
    background-color: #F1F3F5;
    color: var(--color-secondary);
    padding: 12px 15px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 700;
    text-align: center;
    transition: 0.3s;
}

.card-topics li:hover {
    background-color: #E2E6EA;
}

/* =========================================
   6. CASOS DE SUCESSO (CORRIGIDO PARA FLEX)
   ========================================= */
.cases {
    padding: 100px 0;
    background-color: var(--color-ice-green);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.case-card {
    background: var(--color-white);
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    border-top: 5px solid var(--color-primary);
    transition: 0.3s;
    
    /* FLEXBOX HABILITADO PARA ALINHAR BOTÃO */
    display: flex;
    flex-direction: column;
    height: 100%; /* Garante altura igual */
    align-items: flex-start; /* Alinha textos à esquerda */
}

.case-card:hover {
    transform: translateY(-8px);
}

.case-tag {
    display: inline-block;
    background-color: #E8F5E9;
    color: var(--color-primary);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    margin-bottom: 20px;
}

.case-card h3 {
    font-size: 1.25rem;
    margin-bottom: 15px;
}

.case-description {
    font-size: 0.95rem;
    color: #666;
    margin-bottom: 25px;
}

.case-result {
    /* Margin-bottom: auto empurra o botão para o final do card */
    margin-bottom: auto; 
    background-color: #f8f9fa;
    padding: 15px;
    border-radius: 8px;
    font-size: 0.9rem;
    border-left: 3px solid var(--color-accent);
    width: 100%;
}

.case-result strong {
    color: var(--color-primary);
    display: block;
    margin-bottom: 5px;
}

/* =========================================
   BOTÃO DO CARD (Centralizado via Flex)
   ========================================= */
.case-link {
    /* Centraliza o botão dentro do flex container */
    align-self: center;
    
    display: inline-block;
    margin-top: 25px;
    
    /* Estilo Visual do Botão */
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 12px 30px;
    border-radius: 8px;
    font-weight: 700;
    font-size: 0.9rem;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 4px 10px rgba(0, 75, 35, 0.1);
    white-space: nowrap;
}

.case-link:hover {
    background-color: var(--color-accent);
    color: var(--color-white);
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(0, 75, 35, 0.2);
}

/* =========================================
   7. SOBRE & PÚBLICO
   ========================================= */
.about {
    padding: 80px 0;
    background-color: var(--color-light);
}

.about-container {
    display: flex;
    align-items: center;
    gap: 50px;
    flex-wrap: wrap;
}

.about-text {
    flex: 1;
}

.about-text h2 {
    color: var(--color-primary);
    margin-bottom: 20px;
}

.about-stats {
    flex: 1;
    display: flex;
    gap: 20px;
}

.stat-item {
    background: var(--color-white);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    flex: 1;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-accent);
}

/* =========================================
   8. CTA FINAL (Compacto)
   ========================================= */
.cta-footer {
    background-color: var(--color-ice-green);
    color: var(--color-secondary);
    text-align: center;
    padding: 60px 0;
    border-top: 1px solid rgba(0, 75, 35, 0.05);
}

.cta-footer h2 {
    color: var(--color-primary);
    font-size: 2.2rem;
    margin-bottom: 15px;
}

.cta-footer p {
    margin-bottom: 30px;
    font-size: 1.05rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    color: #555;
}

/* =========================================
   9. RODAPÉ (Faixa Pequena)
   ========================================= */
footer {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 15px 0;
}

.footer-content {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.footer-location {
    font-weight: 500;
    font-size: 0.85rem;
    min-width: fit-content;
}

.footer-social {
    display: flex;
    gap: 20px;
}

.footer-social a {
    color: var(--color-white);
    font-size: 0.85rem;
    opacity: 0.9;
    transition: 0.3s;
}

.footer-social a:hover {
    color: var(--color-accent);
    opacity: 1;
}

.footer-copyright {
    font-size: 0.75rem;
    opacity: 0.6;
    margin-top: 0;
    padding-top: 0;
    border-top: none;
    white-space: nowrap;
}

/* =========================================
   10. RESPONSIVIDADE FINAL
   ========================================= */
@media (max-width: 992px) {
    .hero-title { font-size: 2.5rem; }
}

@media (max-width: 768px) {
    .header-container { flex-direction: column; gap: 15px; }
    .nav-menu ul { gap: 15px; flex-wrap: wrap; justify-content: center; }
    .hero-title { font-size: 2rem; }
    .hero-buttons { flex-direction: column; }
    .about-container { flex-direction: column; }
    .lang-selector { display: none; }
    
    /* Footer Ajustes */
    .cta-footer { padding: 70px 0; }
    .cta-footer h2 { font-size: 2rem; }
    footer { padding: 40px 0; }
    .footer-content { flex-direction: column; gap: 10px; text-align: center; }
    .footer-social { gap: 20px; }
}