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

/* ===== VARIÁVEIS ===== */
:root {
    --verde: #00ff66;
    --verde-claro: #7dffb0;
    --verde-escuro: #00aa44;
    --verde-bg: #000800;
    --preto: #000000;
    --glow: 0 0 6px #00ff66, 0 0 12px rgba(0, 255, 102, 0.4);
}

/* ===== BODY ===== */
html, body {
    height: 100%;
}

body {
    font-family: 'Courier New', Courier, monospace;
    font-size: 16px;
    line-height: 1.6;
    color: var(--verde);
    background-color: var(--preto);
    text-shadow: var(--glow);
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

/* Efeito de scanlines de CRT */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    background: repeating-linear-gradient(
        0deg,
        rgba(0, 255, 102, 0.06) 0px,
        rgba(0, 255, 102, 0.06) 1px,
        transparent 1px,
        transparent 3px
    );
    pointer-events: none;
    z-index: 9999;
}

/* Vinheta + flicker sutil */
body::after {
    content: "";
    position: fixed;
    inset: 0;
    background: radial-gradient(
        ellipse at center,
        transparent 55%,
        rgba(0, 0, 0, 0.7) 100%
    );
    pointer-events: none;
    z-index: 9998;
    animation: flickerScreen 6s infinite;
}

@keyframes flickerScreen {
    0%, 100% { opacity: 1; }
    92% { opacity: 1; }
    93% { opacity: 0.85; }
    94% { opacity: 1; }
    97% { opacity: 0.92; }
    98% { opacity: 1; }
}

/* ===== CONTAINER PRINCIPAL ===== */
.crt {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
    position: relative;
    z-index: 1;
}

/* ===== PROMPT ===== */
.prompt {
    color: var(--verde-claro);
    margin-right: 0.5rem;
    font-weight: bold;
}

/* ===== HEADER ===== */
header {
    border: 1px solid var(--verde-escuro);
    padding: 1.25rem 1.5rem;
    margin-bottom: 1.5rem;
    background: rgba(0, 20, 0, 0.4);
    box-shadow: inset 0 0 20px rgba(0, 255, 102, 0.08);
}

header h1 {
    font-size: clamp(1rem, 3.5vw, 1.4rem);
    font-weight: normal;
    text-transform: none;
    letter-spacing: 1px;
    margin-bottom: 0.75rem;
    color: var(--verde);
}

nav ul {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

nav a {
    color: var(--verde);
    text-decoration: none;
    font-size: 0.95rem;
    letter-spacing: 1px;
    padding: 0.15rem 0.35rem;
    transition: background 0.1s steps(2), color 0.1s steps(2);
}

nav a::before {
    content: "";
}

nav a:hover {
    background: var(--verde);
    color: var(--preto);
    text-shadow: none;
}

/* ===== MAIN ===== */
main {
    margin-bottom: 1.5rem;
}

/* ===== JANELA DE TERMINAL ===== */
.terminal-window {
    border: 1px solid var(--verde-escuro);
    background: rgba(0, 10, 0, 0.6);
    box-shadow: 
        inset 0 0 30px rgba(0, 255, 102, 0.06),
        0 0 15px rgba(0, 255, 102, 0.15);
}

.terminal-bar {
    background: var(--verde-escuro);
    color: var(--preto);
    padding: 0.35rem 1rem;
    font-size: 0.85rem;
    letter-spacing: 1px;
    text-shadow: none;
    font-weight: bold;
}

.terminal-body {
    padding: 1.5rem;
    font-size: clamp(0.9rem, 2.5vw, 1rem);
}

.terminal-body .line {
    color: var(--verde);
    margin-bottom: 0.25rem;
    white-space: pre-wrap;
    word-break: break-word;
}

.terminal-body .output {
    color: var(--verde-claro);
    margin-bottom: 1.25rem;
    padding-left: 1.25rem;
    white-space: pre-wrap;
    word-break: break-word;
}

/* Cursor piscando */
.cursor {
    display: inline-block;
    color: var(--verde);
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    0%, 49% { opacity: 1; }
    50%, 100% { opacity: 0; }
}

/* ===== FOOTER ===== */
footer {
    border-top: 1px dashed var(--verde-escuro);
    padding: 1rem 0;
    text-align: center;
    font-size: 0.85rem;
    letter-spacing: 2px;
    color: var(--verde-escuro);
    text-shadow: 0 0 4px rgba(0, 255, 102, 0.5);
}

/* ===== RESPONSIVO ===== */
@media (max-width: 600px) {
    .crt {
        padding: 1rem 0.75rem;
    }

    header {
        padding: 1rem 1rem;
    }

    .terminal-body {
        padding: 1rem;
    }

    nav ul {
        gap: 0.5rem;
    }

    .terminal-bar {
        font-size: 0.75rem;
        padding: 0.3rem 0.75rem;
    }

    footer {
        font-size: 0.75rem;
        letter-spacing: 1px;
    }
}

@media (max-width: 380px) {
    body {
        font-size: 14px;
    }

    .terminal-body {
        font-size: 0.8rem;
    }

    header h1 {
        font-size: 0.85rem;
    }
}