/* Reset e Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --black: #000000;
    --black-light: #1a1a1a;
    --purple-neon: #9D00FF;
    --purple-bright: #B026FF;
    --purple-dark: #7000CC;
    --purple-light: #C850FF;
    --purple-glow: rgba(157, 0, 255, 0.5);
    --white: #ffffff;
    --gray: #666666;
    --gray-light: #999999;
    --gradient-primary: linear-gradient(135deg, #9D00FF 0%, #B026FF 50%, #C850FF 100%);
    --glow: 0 0 20px var(--purple-glow);
}

/* Mobile First */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--black);
    color: var(--white);
    line-height: 1.8;
    padding: 20px;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    background: var(--black-light);
    border: 2px solid var(--purple-dark);
    border-radius: 20px;
    padding: 30px 20px;
    box-shadow: var(--glow);
}

.header {
    margin-bottom: 30px;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--gray-light);
    text-decoration: none;
    font-size: clamp(0.9rem, 2.5vw, 1rem);
    padding: 8px 15px;
    border-radius: 25px;
    background: rgba(157, 0, 255, 0.1);
    border: 1px solid transparent;
    transition: all 0.3s;
}

.back-link:hover {
    color: var(--purple-bright);
    border-color: var(--purple-bright);
    box-shadow: var(--glow);
}

.back-link svg {
    width: 20px;
    height: 20px;
}

.logo {
    max-width: 100px;
    height: auto;
    display: block;
    margin: 0 auto 20px;
    filter: drop-shadow(0 0 15px var(--purple-glow));
}

h1 {
    text-align: center;
    font-size: clamp(1.8rem, 5vw, 2.5rem);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
    font-weight: 800;
}

.subtitle {
    text-align: center;
    color: var(--gray-light);
    margin-bottom: 30px;
    font-size: clamp(0.9rem, 2.5vw, 1rem);
}

.update-date {
    text-align: center;
    color: var(--gray);
    font-size: clamp(0.85rem, 2vw, 0.9rem);
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--purple-dark);
}

.content h2 {
    color: var(--purple-bright);
    font-size: clamp(1.3rem, 4vw, 1.6rem);
    margin: 30px 0 15px;
    padding-top: 20px;
    border-top: 1px solid var(--purple-dark);
}

.content h2:first-child {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

.content h3 {
    color: var(--purple-light);
    font-size: clamp(1.1rem, 3vw, 1.3rem);
    margin: 20px 0 10px;
}

.content p {
    color: var(--gray-light);
    margin-bottom: 15px;
    font-size: clamp(0.95rem, 2.5vw, 1rem);
}

.content ul,
.content ol {
    margin: 15px 0 15px 25px;
    color: var(--gray-light);
}

.content li {
    margin-bottom: 10px;
    font-size: clamp(0.9rem, 2.5vw, 0.95rem);
}

.content strong {
    color: var(--white);
}

.highlight-box {
    background: rgba(157, 0, 255, 0.1);
    border-left: 4px solid var(--purple-bright);
    padding: 20px;
    margin: 20px 0;
    border-radius: 10px;
}

.highlight-box p {
    color: var(--white);
}

.contact-box {
    background: var(--black);
    border: 1px solid var(--purple-dark);
    padding: 20px;
    border-radius: 15px;
    margin: 30px 0;
}

.contact-box h3 {
    color: var(--purple-bright);
    margin-bottom: 15px;
}

.contact-box a {
    color: var(--purple-bright);
    text-decoration: none;
}

.contact-box a:hover {
    color: var(--purple-light);
    text-shadow: var(--glow);
}

.footer-mini {
    text-align: center;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--purple-dark);
    color: var(--gray);
    font-size: clamp(0.8rem, 2vw, 0.85rem);
}

/* Tablet - 640px+ */
@media (min-width: 640px) {
    .container {
        padding: 40px 35px;
    }
}

/* Desktop - 968px+ */
@media (min-width: 968px) {
    body {
        padding: 40px;
    }
    
    .container {
        padding: 50px 60px;
    }
    
    .logo {
        max-width: 120px;
    }
}