/* ===== VARIABLES ===== */
:root {
    --bg-color: #0d0d0d;
    --bg-darker: #050505;
    --text-color: #f1f1f1;
    --text-muted: #aaaaaa;
    --accent-color: #26ff26; /* Venom Neon Green */
    --accent-hover: #1acc1a;
    --header-bg: rgba(5, 5, 5, 0.95);
    
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Open Sans', sans-serif;
    
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

.section {
    padding: 80px 0;
}

.dark-bg {
    background-color: var(--bg-darker);
}

.text-accent {
    color: var(--accent-color);
}

.text-center {
    text-align: center;
}

.mx-auto {
    margin-left: auto;
    margin-right: auto;
}

.line {
    width: 60px;
    height: 3px;
    background-color: var(--accent-color);
    margin: 15px 0 25px;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-block;
    padding: 12px 30px;
    font-family: var(--font-heading);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.primary-btn {
    background-color: var(--accent-color);
    color: #000;
}

.primary-btn:hover {
    background-color: var(--text-color);
    box-shadow: 0 0 15px var(--accent-color);
}

.outline-btn {
    background-color: transparent;
    border: 2px solid var(--accent-color);
    color: var(--accent-color);
}

.outline-btn:hover {
    background-color: var(--accent-color);
    color: #000;
}

/* ===== HEADER ===== */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: transparent;
    padding: 20px 0;
    z-index: 1000;
    transition: var(--transition);
}

header.scrolled {
    background-color: var(--header-bg);
    padding: 15px 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.5);
}

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

.logo h2 {
    font-size: 24px;
    color: #fff;
    font-weight: 900;
}

.logo span {
    color: var(--accent-color);
}

.logo-img {
    height: 50px;
    width: auto;
    /* Siyah yazılı beyaz arkaplanı karanlık temaya uydurmak için: */
    filter: invert(1); /* Siyahı beyaza, beyazı siyaha çevirir */
    mix-blend-mode: screen; /* Siyah arkaplanı şeffaf yapar */
    transition: var(--transition);
}

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

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links li a {
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    position: relative;
    padding-bottom: 5px;
}

.nav-links li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0%;
    height: 2px;
    background-color: var(--accent-color);
    transition: var(--transition);
}

.nav-links li a:hover::after,
.nav-links li a.active::after {
    width: 100%;
}

.mobile-menu-icon {
    display: none;
    font-size: 24px;
    cursor: pointer;
}

/* ===== HERO SECTION ===== */
.hero {
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    position: relative;
    background: url('https://images.unsplash.com/photo-1549719386-74dfcbf7dbed?q=80&w=1920&auto=format&fit=crop') center/cover no-repeat;
    /* Placeholder for impactful image */
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0.6) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero-content h1 {
    font-size: 4rem;
    font-weight: 900;
    margin-bottom: 15px;
    text-transform: uppercase;
}

.hero-content h1 span {
    color: var(--accent-color);
    text-shadow: 0 0 10px rgba(38, 255, 38, 0.4);
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: #ccc;
    max-width: 600px;
}

/* Animations for hero */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s ease forwards;
}

.delay-1 { animation-delay: 0.3s; }
.delay-2 { animation-delay: 0.6s; }

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== ABOUT SECTION ===== */
.about-container {
    display: flex;
    flex-wrap: wrap;
    gap: 50px;
    align-items: center;
}

.about-text {
    flex: 1;
    min-width: 300px;
}

.about-text p {
    margin-bottom: 15px;
    color: var(--text-muted);
}

.about-features {
    display: flex;
    gap: 30px;
    margin-top: 30px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 15px;
}

.feature-item i {
    font-size: 30px;
    color: var(--accent-color);
}

.feature-item span {
    font-family: var(--font-heading);
    font-weight: 700;
}

.about-image-placeholder {
    flex: 1;
    min-width: 300px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.image-box {
    width: 100%;
    aspect-ratio: 1/1;
    background: linear-gradient(135deg, var(--bg-darker), #1a1a1a);
    border: 2px solid #222;
    border-radius: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--accent-color);
    /* For actual image, change to img tag */
}

/* ===== SERVICES SECTION ===== */
.section-title {
    margin-bottom: 50px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.service-card {
    background-color: var(--bg-color);
    padding: 30px 20px;
    border-radius: 8px;
    text-align: center;
    border: 1px solid #222;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-color);
    box-shadow: 0 10px 20px rgba(38, 255, 38, 0.1);
}

.service-icon {
    font-size: 40px;
    color: var(--accent-color);
    margin-bottom: 20px;
}

.service-card h3 {
    margin-bottom: 15px;
}

.service-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ===== CTA SECTION ===== */
.cta-section {
    background: linear-gradient(rgba(0,0,0,0.8), rgba(0,0,0,0.8)), url('https://images.unsplash.com/photo-1599058917212-d750089bc07e?q=80&w=1920&auto=format&fit=crop') center/cover fixed;
    padding: 100px 0;
}

.cta-section h2 {
    font-size: 2.5rem;
    margin-bottom: 30px;
}

/* ===== CONTACT SECTION ===== */
.contact-container {
    display: flex;
    flex-wrap: wrap;
    gap: 50px;
}

.contact-info {
    flex: 1;
    min-width: 300px;
}

.contact-info p {
    margin-bottom: 30px;
    color: var(--text-muted);
}

.contact-list li {
    display: flex;
    gap: 20px;
    margin-bottom: 25px;
}

.contact-list i {
    font-size: 24px;
    color: var(--accent-color);
    margin-top: 5px;
}

.contact-list h4 {
    margin-bottom: 5px;
}

.contact-list a {
    color: var(--text-muted);
}

.contact-list a:hover {
    color: var(--accent-color);
}

.contact-form {
    flex: 1;
    min-width: 300px;
    background-color: var(--bg-darker);
    padding: 30px;
    border-radius: 8px;
    border: 1px solid #222;
}

.form-group {
    margin-bottom: 20px;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 15px;
    background-color: #111;
    border: 1px solid #333;
    color: #fff;
    font-family: var(--font-body);
    font-size: 1rem;
    border-radius: 4px;
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--accent-color);
}

.submit-btn {
    width: 100%;
}

.form-notice {
    margin-top: 15px;
    font-size: 0.8rem;
    color: #666;
    text-align: center;
}

/* ===== FOOTER ===== */
footer {
    background-color: #000;
    padding: 20px 0;
    text-align: center;
    border-top: 1px solid #111;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.social-links a {
    display: inline-block;
    width: 40px;
    height: 40px;
    line-height: 40px;
    background-color: #111;
    border-radius: 50%;
    margin-left: 10px;
    transition: var(--transition);
}

.social-links a:hover {
    background-color: var(--accent-color);
    color: #000;
    transform: translateY(-3px);
}

/* ===== JS ANIMATIONS ===== */
.reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s ease-out;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        height: 100vh;
        width: 70%;
        max-width: 300px;
        background-color: var(--header-bg);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: var(--transition);
        box-shadow: -5px 0 15px rgba(0,0,0,0.5);
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .mobile-menu-icon {
        display: block;
        z-index: 1001;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .about-features {
        flex-direction: column;
        gap: 15px;
    }
    
    .footer-bottom {
        flex-direction: column;
        justify-content: center;
    }
}