/* --- CSS Variables & Theme Setup --- */
:root {
    /* Light Theme (Default) */
    --bg-color: #f8fafc;
    --bg-alt: #f1f5f9;
    --text-main: #0f172a;
    --text-muted: #475569;
    --accent: #2563eb;
    --accent-hover: #1d4ed8;
    --card-bg: #ffffff;
    --border-color: #e2e8f0;
    --header-bg: rgba(255, 255, 255, 0.9);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-hover: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    
    /* WhatsApp Color */
    --wa-color: #25D366;
    --wa-hover: #1EBE55;
}

[data-theme="dark"] {
    /* Dark Theme */
    --bg-color: #0f172a;
    --bg-alt: #1e293b;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --accent: #38bdf8;
    --accent-hover: #0284c7;
    --card-bg: #1e293b;
    --border-color: #334155;
    --header-bg: rgba(15, 23, 42, 0.9);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.5);
    --shadow-hover: 0 10px 15px -3px rgba(0, 0, 0, 0.7);
}

/* --- Base Resets --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
    overflow-x: hidden;
}

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

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

/* --- Layout Utils --- */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

.section {
    padding: 80px 0;
}

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

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

.mt-4 {
    margin-top: 2rem;
}

/* --- Typography --- */
h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--text-main);
}

p {
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--bg-alt);
    color: var(--accent);
    border-radius: 999px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
    border: 1px solid var(--border-color);
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    font-size: 1rem;
}

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

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

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

.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
}

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

.btn-outline-whatsapp:hover {
    background-color: var(--wa-color);
    color: #fff !important;
    transform: translateY(-2px);
}

.btn-block {
    width: 100%;
}

/* --- Navbar --- */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: var(--header-bg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 5%;
    max-width: 1400px;
    margin: 0 auto;
}

.logo-img {
    height: 100px;
    max-width: 350px;
    object-fit: contain;
    display: block;
    margin-left: 20px; /* Traz a logo mais para o "dentro" do layout */
}

.nav-menu {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    color: var(--text-main);
    font-weight: 500;
    transition: color 0.3s;
}

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

.btn-whatsapp-nav {
    background-color: var(--wa-color);
    color: #fff !important;
    padding: 0.5rem 1rem;
    border-radius: 6px;
}

.btn-whatsapp-nav:hover {
    background-color: var(--wa-hover);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.menu-toggle .bar {
    width: 25px;
    height: 3px;
    background-color: var(--text-main);
    transition: 0.3s;
}

/* Theme Toggle */
.theme-switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 24px;
}
.theme-switch input { display: none; }
.slider {
    position: absolute;
    cursor: pointer;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: var(--bg-alt);
    transition: .4s;
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 5px;
    font-size: 12px;
}
.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 2px;
    bottom: 2px;
    background-color: white;
    transition: .4s;
    z-index: 2;
}
.slider.round { border-radius: 34px; }
.slider.round:before { border-radius: 50%; }
input:checked + .slider { background-color: var(--accent); }
input:checked + .slider:before { transform: translateX(26px); }

/* --- Hero Section --- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 5% 60px;
    position: relative;
}

.hero-content {
    max-width: 800px;
    z-index: 2;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    letter-spacing: -1px;
}

.hero .subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* --- Services Grid --- */
.grid-4 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.card {
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: var(--accent);
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

/* --- Split Sections --- */
.split-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.split-grid.reverse {
    direction: rtl;
}

.split-grid.reverse > * {
    direction: ltr;
}

.feature-list {
    list-style: none;
    margin-top: 1.5rem;
}

.feature-list li {
    margin-bottom: 0.8rem;
    color: var(--text-muted);
}

.image-placeholder {
    width: 100%;
    aspect-ratio: 4/3;
    background-color: var(--border-color);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-weight: 600;
}

.maintenance-image-container {
    background-color: #ffffff; /* Fundo branco fixo para a imagem */
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow);
}

.maintenance-img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
}

/* --- Brands --- */
.brands-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1.5rem;
}

.brand-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 120px;
    transition: all 0.3s ease;
}

.brand-card:hover {
    border-color: var(--accent);
    transform: translateY(-5px);
}

.brand-logo {
    max-width: 80%;
    max-height: 60px;
    object-fit: contain;
    filter: brightness(0); /* Default for light theme: Black */
    transition: filter 0.3s ease;
}

[data-theme="dark"] .brand-logo {
    filter: brightness(0) invert(1); /* White for dark theme */
}

/* --- Supply Cards --- */
.supply-card {
    background: var(--card-bg);
    border-top: 4px solid var(--accent);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

/* --- Testimonials --- */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.testimonial-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.stars {
    color: #fbbf24;
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

/* --- Contact --- */
.contact-info .info-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.info-icon {
    font-size: 1.5rem;
}

.contact-form {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-alt);
    color: var(--text-main);
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
}

/* --- Floating WhatsApp --- */
.float-wa {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: var(--wa-color);
    color: #fff;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-hover);
    z-index: 100;
    transition: transform 0.3s;
}

.float-wa:hover {
    transform: scale(1.1);
    color: #fff;
}

/* --- Footer --- */
.footer {
    padding: 2rem 0;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
}

/* --- Animations --- */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-up.active {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }

/* --- Responsive --- */
@media (max-width: 992px) {
    .split-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .brands-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--header-bg);
        flex-direction: column;
        justify-content: center;
        transition: 0.3s;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
}