:root {
    --cor-fundo: #0d1117;
    --cor-superficie: #161b22;
    --texto-principal: #c9d1d9;
    --cor-destaque: #00ffcc;
    --cor-borda: #30363d;
    --fonte-principal: 'Inter', sans-serif;
    --fonte-mono: 'Fira Code', monospace;
}

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

body {
    background-color: var(--cor-fundo);
    background-image: radial-gradient(circle, #21262d 1px, transparent 1px);
    background-size: 35px 35px;
    color: var(--texto-principal);
    font-family: var(--fonte-principal);
    line-height: 1.6;
}

/* NAVBAR GLOBAL */
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 60px;
    border-bottom: 1px solid var(--cor-borda);
    position: sticky;
    top: 0;
    background-color: rgba(13, 17, 23, 0.9);
    backdrop-filter: blur(10px);
    z-index: 100;
}

.nav-logo {
    font-family: var(--fonte-mono);
    color: var(--cor-destaque);
    font-size: 1.1rem;
    text-decoration: none;
}

.nav-links { 
    display: flex; 
    gap: 16px; 
}

.btn {
    background: transparent;
    border: 2px solid var(--cor-destaque);
    color: white;
    padding: 10px 22px;
    font-family: var(--fonte-mono);
    font-size: 0.9rem;
    border-radius: 4px;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s;
}

.btn:hover, 
.btn.ativo {
    background: var(--cor-destaque);
    color: var(--cor-fundo);
}

/* ELEMENTOS GLOBAIS COMUNS */
h1 {
    font-size: 2.8rem;
    color: white;
    margin-bottom: 12px;
}

.subtexto {
    font-size: 1rem;
    color: #8b949e;
    margin-bottom: 50px;
}

.texto-terminal {
    font-family: var(--fonte-mono);
    color: var(--cor-destaque);
    font-size: 1rem;
    margin-bottom: 12px;
}

.cursor { 
    animation: blink 0.8s step-end infinite; 
}

@keyframes blink { 
    50% { opacity: 0; } 
}

/* DIVISOR GERAL */
.divisor {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 30px;
}

.divisor h2 {
    font-family: var(--fonte-mono);
    font-size: 1rem;
    color: var(--cor-destaque);
    white-space: nowrap;
}

.divisor hr {
    flex: 1;
    border: none;
    border-top: 1px solid var(--cor-borda);
}

@media (max-width: 650px) {
    nav { 
        padding: 16px 20px; 
        flex-direction: column; 
        gap: 14px; 
    }
}