/* --- GLOBAL STYLES & FONT SETUP --- */
:root {
    --color-dark: #0A0A0A;
    --color-primary-neon: #00FFFF; /* Electric Blue */
    --color-secondary-neon: #FF00FF; /* Magenta/Pink */
    --color-text-light: #CCCCCC;
    --font-header: 'Orbitron', sans-serif;
    --font-body: 'Space Mono', monospace;
}

body {
    background-color: var(--color-dark);
    color: var(--color-text-light);
    font-family: var(--font-body);
    margin: 0;
    line-height: 1.6;
    overflow-x: hidden;
    font-size: 16px;
}

h1, h2, h3 {
    font-family: var(--font-header);
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

/* --- NEON GLOW EFFECTS --- */
.neon-text {
    color: var(--color-primary-neon);
    text-shadow: 0 0 7px var(--color-primary-neon), 0 0 15px rgba(0, 255, 255, 0.6);
}

.neon-title {
    color: white;
    text-shadow: 0 0 5px var(--color-primary-neon), 0 0 10px var(--color-primary-neon);
}

.section-title {
    font-size: 2.2em;
    margin-bottom: 50px;
    display: inline-block;
    padding: 10px 20px;
    border-bottom: 3px solid var(--color-secondary-neon);
    color: white;
}

/* --- HEADER & NAVIGATION --- */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 5%;
    background-color: rgba(10, 10, 10, 0.95);
    border-bottom: 1px solid rgba(0, 255, 255, 0.3);
    position: fixed;
    width: 90%;
    z-index: 1000;
}

.logo h1 {
    font-size: 1.8em;
    margin: 0;
    transition: transform 0.3s;
}

.logo h1:hover {
    transform: scale(1.05);
}

nav a {
    color: var(--color-text-light);
    text-decoration: none;
    margin-left: 25px;
    padding: 5px 10px;
    transition: color 0.3s, text-shadow 0.3s;
}

nav a:hover, nav a.cta-nav {
    color: var(--color-primary-neon);
    text-shadow: 0 0 5px var(--color-primary-neon);
}

/* --- HERO SECTION --- */
.hero-section {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding-top: 120px;
    /* Latar Belakang Circuit Board */
    background: 
        url('https://i.imgur.com/d8CGd8i.png') no-repeat center center/cover, /* Ganti dengan gambar sirkuit yang relevan (Gambar placeholder) */
        linear-gradient(to bottom, rgba(0, 0, 0, 0.8), rgba(0, 51, 102, 0.4));
    animation: scanline 1s infinite alternate; /* Efek scanline halus */
}

.hero-content {
    max-width: 800px;
    padding: 40px;
    background-color: rgba(10, 10, 10, 0.7); /* Latar belakang semi-transparan untuk kontras */
    border: 2px solid var(--color-primary-neon);
    box-shadow: 0 0 30px rgba(0, 255, 255, 0.5);
    animation: fadeIn 1.5s ease-out;
}

.hero-section .subtitle {
    font-size: 1.1em;
    margin-bottom: 40px;
    color: var(--color-text-light);
}

/* --- CTA BUTTON --- */
.cta-button {
    background: var(--color-primary-neon);
    color: var(--color-dark);
    padding: 15px 35px;
    font-size: 1.1em;
    font-weight: bold;
    text-transform: uppercase;
    border: none;
    border-radius: 3px;
    cursor: pointer;
    box-shadow: 0 0 10px var(--color-primary-neon);
    transition: all 0.4s ease;
}

.cta-button:hover {
    background: var(--color-secondary-neon);
    box-shadow: 0 0 20px var(--color-secondary-neon), 0 0 30px var(--color-secondary-neon);
    transform: translateY(-3px);
}

/* --- CONTENT SECTIONS --- */
.content-section {
    padding: 100px 5%;
    text-align: center;
}

/* Protocol Section (3-Column Grid) */
.protocol-section {
    background-color: #1A1A1A;
}

.protocol-grid {
    display: flex;
    justify-content: center;
    gap: 40px;
    max-width: 1100px;
    margin: 0 auto;
}

.protocol-item {
    flex: 1;
    padding: 25px;
    background-color: #0F0F0F;
    border: 1px solid rgba(0, 255, 255, 0.1);
    border-radius: 5px;
    transition: all 0.3s ease;
}

.protocol-item:hover {
    border-color: var(--color-primary-neon);
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.4);
    transform: scale(1.03);
}

.protocol-item .icon {
    font-size: 3em;
    display: block;
    margin-bottom: 15px;
}

/* Code Section (Keahlian) */
.code-section {
    background-color: #050505;
}

.code-grid {
    display: flex;
    justify-content: center;
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
}

.code-card {
    flex: 1 1 300px;
    text-align: left;
    padding: 30px;
    border-left: 5px solid var(--color-secondary-neon);
    background-color: #151515;
    transition: background-color 0.3s;
}

.code-card:hover {
    background-color: #202020;
}

.code-card h3 {
    color: var(--color-secondary-neon);
    font-size: 1.3em;
    margin-top: 0;
}

/* CONTACT SECTION (Form) */
.contact-form {
    max-width: 600px;
    margin: 40px auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.input-field {
    background-color: #1A1A1A;
    color: var(--color-primary-neon);
    border: 1px solid rgba(0, 255, 255, 0.5);
    padding: 15px;
    border-radius: 3px;
    font-family: var(--font-body);
    font-size: 1em;
    box-shadow: inset 0 0 5px rgba(0, 255, 255, 0.2);
    transition: border-color 0.3s;
}

.input-field:focus {
    border-color: var(--color-primary-neon);
    outline: none;
}

textarea.input-field {
    resize: vertical;
    min-height: 150px;
}

.submit-button {
    margin-top: 15px;
    /* Gunakan gaya CTA Button yang sudah ada */
}

/* --- FOOTER --- */
footer {
    background-color: #000000;
    color: #666666;
    text-align: center;
    padding: 20px;
    border-top: 1px solid rgba(0, 255, 255, 0.2);
    font-size: 0.85em;
    text-shadow: 0 0 2px rgba(0, 255, 255, 0.1);
}

/* --- ANIMATIONS & MEDIA QUERIES --- */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes scanline {
    from { background-position-y: 0%; }
    to { background-position-y: 100%; }
}

@media (max-width: 768px) {
    .hero-section h2 {
        font-size: 2em;
    }

    .protocol-grid, .code-grid {
        flex-direction: column;
    }

    .section-title {
        font-size: 1.8em;
    }
}