:root {
    --primary: #FF9F1C;
    --dark: #0A0A0B;
    --light: #F4F4F9;
    --gray: #1E1E20;
    --text-muted: #A0A0A5;
}

/* Reset Global - 100% Quadrado e Otimizado */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    border-radius: 0 !important;
}

html {
    scroll-behavior: smooth;
    /* Melhora a estabilidade visual durante o scroll */
    overflow-y: scroll;
}

/* Otimização de Performance de Texto */
body {
    font-family: 'Inter', sans-serif;
    background-color: var(--dark);
    color: var(--light);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    overflow-x: hidden;
    /* Força a renderização suave sem travar a thread principal */
    text-rendering: optimizeSpeed;
    -webkit-font-smoothing: antialiased;
}

:target {
    scroll-margin-top: 100px;
}

/* --- BARRA DE ROLAGEM OTIMIZADA --- */
::-webkit-scrollbar {
    width: 8px;
}

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

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

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

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}

@media (max-width: 350px) {
    .container {
        padding: 0 10px;
    }
}

/* Header Sticky - Performance de Camada */
header {
    padding: 25px 0;
    border-bottom: 1px solid var(--gray);
    background: var(--dark);
    position: sticky;
    top: 0;
    z-index: 1001;
    /* Garante que o header fique na sua própria camada de renderização */
    transform: translateZ(0);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    text-decoration: none;
    font-size: 1.6rem;
    font-weight: 900;
    color: var(--light);
    letter-spacing: -1px;
    text-transform: uppercase;
    transition: opacity 0.2s ease;
}

.logo:hover {
    opacity: 0.8;
}

.logo .highlight {
    color: var(--primary);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-img {
    height: 32px;
    width: auto;
    object-fit: contain;
}

/* Menu Desktop */
.nav-links {
    list-style: none;
    display: flex;
    gap: 25px;
}

.nav-links a {
    text-decoration: none;
    color: var(--light);
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    transition: color 0.2s ease;
}

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

.menu-btn {
    display: none;
    color: var(--light);
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 1002;
    background: transparent;
    border: none;
}

main {
    flex: 1;
    padding: 60px 0;
    /* Otimização para LCP: renderiza o conteúdo principal com prioridade */
    contain: content;
}

footer {
    width: 100%;
    padding: 40px 0;
    text-align: center;
    border-top: 1px solid var(--gray);
    color: var(--text-muted);
    font-size: 0.85rem;
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* RESPONSIVIDADE - Menu Mobile de Alta Performance */
@media (max-width: 768px) {
    .menu-btn {
        display: block;
    }

    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--dark);
        border-bottom: 1px solid var(--gray);
        flex-direction: column;
        gap: 0;
        opacity: 0;
        visibility: hidden;
        transform: translateY(-10px);
        /* will-change avisa o browser para usar a GPU */
        will-change: transform, opacity;
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
            opacity 0.3s ease,
            visibility 0.3s;
        z-index: 1000;
    }

    .nav-links.active {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    .nav-links li {
        width: 100%;
        border-top: 1px solid rgba(255, 255, 255, 0.05);
    }

    .nav-links a {
        display: block;
        padding: 18px 20px;
        transition: background 0.2s, color 0.2s, transform 0.2s;
    }

    .nav-links a:hover {
        background-color: var(--gray);
        color: var(--primary);
        transform: translateX(8px);
    }
}