/* --- Değişkenler ve Reset (Cyber Tech Palette) --- */
:root {
    --sidebar-width: 260px;
    
    /* Renkler */
    --color-bg: #0D0E12;        /* Derin Siyah/Lacivert */
    --color-sidebar: #15161C;   /* Sidebar Koyu Gri */
    --color-text: #B0B0B0;      /* Gümüş Gri */
    --color-purple: #9D00FF;    /* Neon Mor */
    --color-purple-hover: #7A00CC;
    --color-green: #00FF9D;     /* Devre Kartı Yeşili (Matrix) */
    --color-card-bg: #1E1F26;
    --color-border: #2A2B36;
    
    /* Fontlar */
    --font-heading: 'Orbitron', sans-serif; /* Fütüristik */
    --font-mono: 'Share Tech Mono', monospace; /* Teknik/Kod */
    --font-body: 'Roboto', sans-serif;         /* Okunaklı */
}

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

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

a { text-decoration: none; color: inherit; transition: 0.3s; }
img { max-width: 100%; display: block; border-radius: 4px; filter: contrast(120%) brightness(0.9); }
ul { list-style: none; }

/* --- Ana Düzen --- */
.layout-wrapper {
    display: flex;
    min-height: 100vh;
}

/* --- Sidebar (Dark Tech) --- */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--color-sidebar);
    color: #fff;
    position: fixed;
    height: 100vh;
    padding: 40px 20px;
    display: flex;
    flex-direction: column;
    z-index: 1000;
    overflow-y: auto;
    border-right: 1px solid var(--color-border);
    box-shadow: 5px 0 20px rgba(0,0,0,0.5);
}

.brand {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 50px;
    color: var(--color-purple);
    letter-spacing: 2px;
    text-shadow: 0 0 10px rgba(157, 0, 255, 0.5);
}
.chip-icon { font-size: 1.5rem; margin-left: 5px; }

.nav-menu li { margin-bottom: 10px; }
.nav-menu a {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    color: #6E6E7A;
    display: block;
    padding: 10px 15px;
    border-left: 3px solid transparent;
    transition: all 0.2s ease;
    text-transform: uppercase;
}
.nav-menu a:hover, .nav-menu a.active {
    color: #FFF;
    background: rgba(157, 0, 255, 0.1);
    border-left-color: var(--color-purple);
    padding-left: 20px;
    text-shadow: 0 0 5px var(--color-purple);
}

.sidebar-footer {
    margin-top: auto;
    font-size: 0.9rem;
    color: #555;
    padding-top: 30px;
    border-top: 1px solid var(--color-border);
    text-align: center;
}
.email-link { display: block; margin-top: 5px; color: var(--color-green); font-family: var(--font-mono); font-size: 0.9rem; }

/* Tracking Module */
.tracking-module { margin-top: 20px; text-align: left; }
.tracking-module label { display: block; font-family: var(--font-mono); color: var(--color-purple); font-size: 0.7rem; margin-bottom: 5px; }
.input-group { display: flex; }
.input-group input { width: 100%; padding: 5px; background: #000; border: 1px solid var(--color-border); color: #fff; font-family: var(--font-mono); font-size: 0.8rem; }
.input-group button { background: var(--color-purple); border: none; color: #fff; padding: 0 10px; cursor: pointer; font-weight: bold; }
.input-group button:hover { background: var(--color-purple-hover); }

/* --- Sağ Ana İçerik --- */
.main-content {
    margin-left: var(--sidebar-width);
    width: calc(100% - var(--sidebar-width));
    display: flex;
    flex-direction: column;
}

/* --- Hero & Header --- */
.hero-header, .page-header {
    height: 75vh;
    background-size: cover;
    background-position: center;
    position: relative;
    border-bottom: 2px solid var(--color-purple);
}
.page-header.compact { height: 45vh; }

.overlay {
    background: linear-gradient(to right, rgba(13, 14, 18, 0.9), rgba(13, 14, 18, 0.4));
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 0 60px;
    color: #fff;
}

.hero-text { max-width: 800px; padding-left: 20px; border-left: 5px solid var(--color-green); }

.glitch {
    font-family: var(--font-mono);
    color: var(--color-green);
    font-size: 1.2rem;
    margin-bottom: 10px;
    letter-spacing: 3px;
    position: relative;
}

.hero-header h1, .page-header h1 {
    font-family: var(--font-heading);
    font-size: 4rem;
    margin-bottom: 20px;
    font-weight: 700;
    line-height: 1;
    text-transform: uppercase;
}
.neon-text { 
    color: #fff; 
    text-shadow: 0 0 10px var(--color-purple), 0 0 20px var(--color-purple);
}

.subtitle {
    font-size: 1.2rem;
    font-weight: 300;
    margin-bottom: 30px;
    color: #ccc;
    font-family: var(--font-body);
}

/* --- Content Container --- */
.content-container {
    max-width: 1100px; 
    margin: 0 auto;
    padding: 80px 50px;
    width: 100%;
}

/* --- Typography & Sections --- */
.text-section { margin-bottom: 70px; }
h2 { 
    font-family: var(--font-heading); 
    font-size: 2.5rem; 
    margin-bottom: 25px; 
    color: #fff;
    text-transform: uppercase;
    letter-spacing: 1px;
}
h3 { font-family: var(--font-heading); font-size: 1.5rem; margin-bottom: 15px; color: var(--color-green); margin-top: 20px; letter-spacing: 1px; }
p { margin-bottom: 20px; text-align: justify; font-size: 1rem; color: #aaa; }

.bg-circuit {
    background-color: #15161C;
    padding: 60px;
    border: 1px solid var(--color-purple);
    border-radius: 8px;
    box-shadow: inset 0 0 20px rgba(157, 0, 255, 0.1);
    /* Devre kartı deseni (basit) */
    background-image: radial-gradient(#2A2B36 1px, transparent 1px);
    background-size: 20px 20px;
}

/* --- Grid & Cards (Tech Cards) --- */
.grid-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 70px;
}

.tech-card {
    background: var(--color-card-bg);
    padding: 30px;
    border: 1px solid var(--color-border);
    transition: transform 0.3s;
    text-align: center;
}
.tech-card:hover { 
    transform: translateY(-5px); 
    border-color: var(--color-purple); 
    box-shadow: 0 0 15px rgba(157, 0, 255, 0.2);
}

.card-icon { font-size: 3rem; margin-bottom: 20px; text-shadow: 0 0 10px rgba(255,255,255,0.3); }

/* Split Layout */
.split-layout {
    display: flex;
    gap: 60px;
    align-items: center;
    margin-bottom: 70px;
}
.split-layout img { width: 45%; border: 1px solid var(--color-green); box-shadow: 0 0 10px rgba(0, 255, 157, 0.2); }
.split-layout .split-content { width: 55%; }

.tech-list li { 
    margin-bottom: 10px; 
    padding-left: 20px; 
    position: relative; 
    font-family: var(--font-mono); 
    color: #ccc; 
}
.tech-list li::before { content: '>'; color: var(--color-green); position: absolute; left: 0; font-weight: bold; }

/* --- Forms --- */
.contact-layout { display: grid; grid-template-columns: 1fr 2fr; gap: 50px; }
.contact-info { background: var(--color-card-bg); padding: 40px; border-top: 3px solid var(--color-green); }
.contact-info h3 { color: var(--color-green); border-bottom: 1px solid #333; padding-bottom: 10px; }
.contact-info p { color: #aaa; font-family: var(--font-mono); font-size: 0.9rem; }
.contact-info strong { color: #fff; }

.form-group { margin-bottom: 20px; }
label { display: block; margin-bottom: 8px; font-weight: 700; color: var(--color-purple); font-family: var(--font-mono); font-size: 0.9rem; letter-spacing: 1px; }
input, select, textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--color-border);
    background: #111;
    font-family: var(--font-body);
    font-size: 1rem;
    color: #fff;
    border-radius: 0; /* Keskin */
    transition: 0.3s;
}
input:focus, textarea:focus { border-color: var(--color-green); outline: none; background: #000; }

.btn {
    display: inline-block;
    padding: 15px 40px;
    font-family: var(--font-heading);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    transition: 0.3s;
    border-radius: 2px;
    letter-spacing: 1px;
}
.btn-purple { background-color: var(--color-purple); color: #fff; box-shadow: 0 0 10px rgba(157, 0, 255, 0.4); }
.btn-purple:hover { background-color: var(--color-purple-hover); box-shadow: 0 0 20px rgba(157, 0, 255, 0.6); }
.btn-outline-green { background: transparent; border: 1px solid var(--color-green); color: var(--color-green); }
.btn-outline-green:hover { background: var(--color-green); color: #000; box-shadow: 0 0 10px rgba(0, 255, 157, 0.4); }
.full-width { width: 100%; }

/* --- Yorumlar --- */
.reviews-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
.review-card {
    background: var(--color-card-bg);
    padding: 30px;
    border: 1px solid #333;
    position: relative;
}
.user-avatar { 
    width: 50px; height: 50px; 
    background: var(--color-border); 
    color: #fff; 
    border-radius: 50%; 
    display: flex; align-items: center; justify-content: center; 
    font-weight: bold; font-family: var(--font-heading);
    margin-bottom: 15px;
    border: 2px solid var(--color-purple);
}
blockquote { font-style: italic; color: #bbb; margin-bottom: 20px; font-size: 0.95rem; }
cite { font-weight: 700; font-size: 0.9rem; display: block; color: var(--color-green); font-family: var(--font-mono); }

/* --- Footer --- */
.page-footer {
    padding: 40px;
    text-align: center;
    border-top: 1px solid var(--color-border);
    color: #666;
    font-size: 0.8rem;
    margin-top: auto;
    background: #000;
    font-family: var(--font-mono);
}

.neon-line { border: 0; height: 2px; background: var(--color-purple); margin: 20px 0; width: 100px; box-shadow: 0 0 10px var(--color-purple); }

/* --- Mobil Menü Butonu --- */
.menu-toggle { display: none; }

/* --- Duyarlı Tasarım (Mobil) --- */
@media (max-width: 900px) {
    .sidebar {
        transform: translateX(-100%);
        width: 100%;
        transition: transform 0.3s ease;
        padding-top: 80px;
    }
    .sidebar.active { transform: translateX(0); }
    
    .main-content { margin-left: 0; width: 100%; }
    
    .menu-toggle {
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 6px;
        position: fixed;
        top: 20px;
        left: 20px;
        z-index: 1001;
        background: var(--color-card-bg);
        border: 1px solid var(--color-green);
        width: 50px;
        height: 50px;
        cursor: pointer;
    }
    .bar {
        display: block;
        width: 25px;
        height: 2px;
        background: var(--color-green);
    }

    .hero-header h1 { font-size: 2.5rem; }
    .hero-text { border: none; padding-left: 0; text-align: center; }
    .content-container { padding: 50px 25px; }
    .split-layout, .contact-layout { display: block; }
    .split-layout img, .split-layout .split-content { width: 100%; }
    .split-layout img { margin-bottom: 20px; }
    .grid-card { margin-bottom: 40px; }
}