/* Variáveis CSS para Cores */
:root {
    /* --- NOVAS CORES DA IDENTIDADE (Baseadas na Logo) --- */
    
    /* Azul Escuro (Chave Inglesa e Texto "SERVITEC") */
    --primary-color: #1B2431; 
    --primary-hover: #2c3b50;
    
    /* Vermelho (Casa e Swosh) - Usado para destaque/botões */
    --accent-color: #C1272D; 
    --accent-hover: #a01f25;

    /* Cores de Fundo e Texto */
    --bg-color: #ffffff;
    --bg-secondary: #f8f9fa; /* Cinza bem claro para seções alternadas */
    --text-color: #333333;
    --text-muted: #666666;
    --border-color: #e5e7eb;

    /* Sombras mais suaves */
    --shadow-sm: 0 2px 4px 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);

    --transition: all 0.3s ease;
}

/* Modo Escuro */
body.dark-mode {
    /* Fundos */
    --bg-color: #0f172a;      /* Azul quase preto (Fundo Principal) */
    --bg-secondary: #1e293b;  /* Azul acinzentado (Fundo de Cards/Seções) */
    
    /* Textos */
    --text-color: #f1f5f9;    /* Branco gelo (Texto Padrão) */
    --text-muted: #94a3b8;    /* Cinza claro (Textos secundários) */
    --primary-color: #60a5fa; /* Um azul mais CLARO e brilhante para destaque no escuro */
    
    /* Bordas */
    --border-color: #334155;  /* Bordas visíveis, mas sutis */
}

/* Navbar no Modo Escuro */
body.dark-mode #mainNav {
    background-color: var(--bg-color); /* Fundo escuro */
    box-shadow: 0 2px 10px rgba(0,0,0,0.5);
}

/* Nome "Servitec" na Navbar */
body.dark-mode .navbar-brand span {
    color: #ffffff !important;
}

/* Links da Navbar */
body.dark-mode .nav-link {
    color: #e2e8f0 !important; /* Quase branco */
}
body.dark-mode .nav-link:hover {
    color: var(--accent-color) !important; /* Vermelho no hover */
}

/* Botão de Tema (Lua/Sol) */
body.dark-mode #themeToggle {
    color: #ffffff;
}

/* ========================================
   Estilos Globais
   ======================================== */

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

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

body {
    font-family: 'Montserrat', sans-serif; /* Nova fonte */
    background-color: var(--bg-color);
    transition: background-color 0.3s ease, color 0.3s ease;
    color: var(--text-color);
    line-height: 1.6;
}

/* ========================================
   Navbar
   ======================================== */

#mainNav {
    background-color: var(--bg-color); /* Fundo sempre branco */
        /* Sombra leve para separar do Hero */
    padding: 1rem 0;
    transition: var(--transition);
}

#mainNav.scrolled {
    background-color: var(--bg-color);
    box-shadow: var(--shadow-md);
}

.dark-mode #mainNav.scrolled {
    background-color: var(--bg-secondary);
}

.navbar-brand {
    font-size: 1.5rem;
    color: var(--text-color) !important;
    transition: var(--transition);
}

.logo-img {
    width: 40px;
    height: 40px;
    object-fit: contain;
    border-radius: 8px;
}

.nav-link {
    color: var(--text-color) !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    transition: var(--transition);
}

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

#themeToggle {
    background: none;
    border: none;
    font-size: 1.2rem;
    padding: 0.5rem;
    cursor: pointer;
    color: var(--text-color);
}

/* ========================================
   Hero Section
   ======================================== */

.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--primary-color) 0%, #0f172a 100%);

}

.hero-section::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right,
            rgba(255, 255, 255, 0.95),
            rgba(255, 255, 255, 0.85),
            rgba(255, 255, 255, 0.7));
}

.dark-mode .hero-overlay {
    background: linear-gradient(to right,
            rgba(17, 24, 39, 0.95),
            rgba(17, 24, 39, 0.85),
            rgba(17, 24, 39, 0.7));
}

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

.hero-section h1 {
    color: var(--text-color);
}

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

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-icon {
    width: 24px;
    height: 40px;
    border: 2px solid var(--text-muted);
    border-radius: 20px;
    position: relative;
}

.scroll-icon::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 12px;
    background-color: var(--text-muted);
    border-radius: 3px;
}

/* Subtítulo do Hero no Modo Escuro */
body.dark-mode .hero-section h2, 
body.dark-mode .hero-section .text-primary {
    color: #bfdbfe !important; /* Um azul bem clarinho para ler no fundo escuro */
    /* Ou use #ffffff se preferir branco total */
}

/* ========================================
   Animations
   ======================================== */
@keyframes bounce {

    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateX(-50%) translateY(0);
    }

    40% {
        transform: translateX(-50%) translateY(-10px);
    }

    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* ========================================
   Service Cards
   ======================================== */

.service-card {
    border: 1px solid var(--border-color);
    background-color: var(--bg-color);
    transition: var(--transition);
    height: 100%;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    background-color: rgba(30, 64, 175, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: var(--primary-color);
}

/* Cards no Modo Escuro */
body.dark-mode .card {
    background-color: var(--bg-secondary); /* Cinza azulado escuro */
    border-color: var(--border-color);
}

body.dark-mode .card-title {
    color: #ffffff; /* Título do serviço em branco */
}

body.dark-mode .card-text {
    color: var(--text-muted); /* Descrição em cinza claro */
}

/* Ícones dos serviços no Modo Escuro */
body.dark-mode .service-icon {
    background-color: rgba(96, 165, 250, 0.1); /* Fundo do ícone sutil */
    color: #60a5fa; /* Ícone azul claro neon */
}

/* ========================================
   Buttons
   ======================================== */

.btn-primary {
    background-color: var(--accent-color); /* Botão vermelho chama mais atenção */
    border-color: var(--accent-color);
    transition: var(--transition);
}

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

.btn-outline-primary {
    color: var(--primary-color);
    border-color: var(--primary-color);
    transition: var(--transition);
}

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

/* ========================================
   Sections
   ======================================== */

section {
    padding: 4rem 0;
}

.bg-light {
    background-color: var(--bg-secondary) !important;
}

.dark-mode .bg-light {
    background-color: var(--bg-secondary) !important;
}

/* ========================================
   About Section
   ======================================== */

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

/* ========================================
   Service Cards
   ======================================== */

.service-card {
    border: 1px solid var(--border-color);
    background-color: var(--bg-color);
    transition: var(--transition);
    height: 100%;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    background-color: rgba(30, 64, 175, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: var(--primary-color);
}

/* ========================================
   Portfolio
   ======================================== */

.portfolio-item {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    cursor: pointer;
}

.portfolio-item img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    transition: var(--transition);
}

.portfolio-item:hover img {
    transform: scale(1.1);
}

.portfolio-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    color: white;
    padding: 1.5rem;
    transform: translateY(100%);
    transition: var(--transition);
}

.portfolio-item:hover .portfolio-overlay {
    transform: translateY(0);
}

.portfolio-overlay h5 {
    margin: 0;
    font-size: 1.1rem;
}

/* ========================================
   Location
   ======================================== */

.map-container {
    overflow: hidden;
}

.location-icon {
    width: 50px;
    height: 50px;
    border-radius: 10px;
    background-color: rgba(30, 64, 175, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary-color);
}

/* ========================================
   Contact
   ======================================== */

.contact-icon {
    width: 50px;
    height: 50px;
    border-radius: 10px;
    background-color: rgba(30, 64, 175, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary-color);
}

.form-control,
.form-select {
    background-color: var(--bg-color);
    border-color: var(--border-color);
    color: var(--text-color);
    transition: var(--transition);
}

.form-control:focus,
.form-select:focus {
    background-color: var(--bg-color);
    border-color: var(--primary-color);
    color: var(--text-color);
    box-shadow: 0 0 0 0.2rem rgba(30, 64, 175, 0.25);
}

/* Formulários no Modo Escuro */
body.dark-mode .form-control,
body.dark-mode .form-select {
    background-color: #1e293b; /* Fundo do input */
    border-color: #475569;     /* Borda visível */
    color: #ffffff;            /* Texto que o usuário digita */
}

body.dark-mode .form-control:focus,
body.dark-mode .form-select:focus {
    background-color: #1e293b;
    border-color: var(--accent-color); /* Foco vermelho */
    box-shadow: 0 0 0 0.25rem rgba(193, 39, 45, 0.25);
}

/* Cor do "Placeholder" (texto de exemplo dentro da caixa) */
body.dark-mode ::placeholder {
    color: #94a3b8 !important;
    opacity: 1;
}

/* Labels (Nomes acima das caixas) */
body.dark-mode .form-label, 
body.dark-mode h3, 
body.dark-mode h5 {
    color: #ffffff;
}

/* ========================================
   Footer
   ======================================== */

footer {
    background-color: #111827 !important;
}

.dark-mode footer {
    background-color: #000000 !important;
}

.text-light-emphasis {
    color: #9ca3af !important;
}

/* ========================================
   Cards
   ======================================== */

.card {
    background-color: var(--bg-color);
    border-color: var(--border-color);
    transition: var(--transition);
}

.dark-mode .card {
    background-color: var(--bg-secondary);
}

/* ========================================
   Utilities
   ======================================== */

.text-primary {
    color: var(--primary-color) !important; 
}

.text-muted {
    color: var(--text-muted) !important;
}

.bg-warning {
    background-color: var(--accent-color) !important;
}

/* ========================================
   Responsive
   ======================================== */

@media (max-width: 768px) {
    .hero-section {
        min-height: 100vh;
        padding: 2rem 0;
    }

    .hero-section h1 {
        font-size: 2.5rem;
    }

    .hero-section h2 {
        font-size: 1.75rem;
    }

    .portfolio-item img {
        height: 250px;
    }
}

@media (max-width: 576px) {
    .hero-section h1 {
        font-size: 2rem;
    }

    .hero-section h2 {
        font-size: 1.5rem;
    }

    .display-4 {
        font-size: 2rem;
    }

    .lead {
        font-size: 1rem;
    }
}

/* ========================================
   Animations
   ======================================== */

.fade-in {
    animation: fadeIn 0.6s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   Scrollbar (Webkit)
   ======================================== */

   ::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-hover);
}