/* --- ОСНОВНІ НАЛАШТУВАННЯ --- */
:root {
    --bg-color: #141414;        
    --card-bg: #1f1f1f;         
    --main-green: #4ecb6e;
    --dim-green: rgba(80, 250, 123, 0.2);
    --text-color: #ffffff;
    --font-main: 'JetBrains Mono', monospace;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-main);
    overflow-x: hidden;
    line-height: 1.5;
    padding-top: 70px;

    /* --- HEXAGON PATTERN (ПАНЦИР) --- */
    /* Візерунок заданий тут і тепер буде видний всюди */
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='28' height='49' viewBox='0 0 28 49'%3E%3Cg fill-rule='evenodd'%3E%3Cg id='hexagons' fill='%23222222' fill-opacity='0.4' fill-rule='nonzero'%3E%3Cpath d='M13.99 9.25l13 7.5v15l-13 7.5L1 31.75v-15l12.99-7.5zM3 17.9v12.7l10.99 6.34 11-6.35V17.9l-11-6.34L3 17.9zM0 15l12.98-7.5V0h-2v6.35L0 12.69v2.3zm0 18.5L12.98 41v8h-2v-6.85L0 35.81v-2.3zM15 0v7.5L27.99 15H28v-2.31h-.01L17 6.35V0h-2zm0 49v-8l12.99-7.5H28v2.31h-.01L17 42.15V49h-2z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    background-attachment: fixed; /* Щоб фон не рухався при скролі (паралакс ефект) */
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* --- НАВІГАЦІЯ --- */
.navbar {
    position: fixed; top: 0; left: 0; width: 100%; height: 70px;
    background: rgba(20, 20, 20, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #333; z-index: 1000;
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 5%;
}

/* --- ЛОГОТИП (З ЕФЕКТОМ HOVER) --- */
.nav-logo {
    font-size: 1.4rem; font-weight: 800; 
    text-decoration: none; display: flex; align-items: center; letter-spacing: -1px;
    z-index: 1001;
    transition: 0.3s ease;
}

/* Перша частина: TURTLE */
.logo-part-1 {
    color: var(--main-green);
    transition: color 0.3s ease, text-shadow 0.3s ease;
}

/* Друга частина: _DEV */
.logo-part-2 {
    color: #fff;
    transition: color 0.3s ease, text-shadow 0.3s ease;
}

/* ЕФЕКТ ПРИ НАВЕДЕННІ */
.nav-logo:hover .logo-part-1 {
    color: #fff; 
}

.nav-logo:hover .logo-part-2 {
    color: var(--main-green);
}

.nav-menu { display: flex; align-items: center; gap: 25px; }

.nav-links { display: flex; gap: 25px; }
.nav-links a {
    color: #ccc; text-decoration: none; text-transform: uppercase;
    font-size: 0.9rem; font-weight: 700; transition: 0.3s;
}
.nav-links a:hover { color: var(--main-green); text-shadow: 0 0 10px var(--dim-green); }

/* БУРГЕР */
.burger { display: none; cursor: pointer; z-index: 1001; }
.burger div { width: 25px; height: 3px; background-color: var(--main-green); margin: 5px; transition: all 0.3s ease; }
.toggle .line1 { transform: rotate(-45deg) translate(-5px, 6px); }
.toggle .line2 { opacity: 0; }
.toggle .line3 { transform: rotate(45deg) translate(-5px, -6px); }

/* --- HEADER --- */
header {
    min-height: 85vh;
    display: flex; flex-direction: column;
    justify-content: center; align-items: center; text-align: center;
    position: relative; overflow: hidden; 
    padding: 40px 0;
    
    /* Хедер залишаємо з градієнтом, щоб текст читався, але низ плавно переходить у патерн */
    background: linear-gradient(to bottom, var(--bg-color) 20%, rgba(20,20,20,0.8));
}

#webCanvas { position: absolute; top: 0; left: 0; width: 100%; height: 100%; z-index: 0; }
.header-content { position: relative; z-index: 1; }

.turtle-logo {
    width: 240px; 
    height: auto; 
    margin-bottom: 15px;
    filter: drop-shadow(0 0 15px rgba(80, 250, 123, 0.6));
    animation: float 6s ease-in-out infinite;
}
@keyframes float { 0% { transform: translateY(0px); } 50% { transform: translateY(-15px); } 100% { transform: translateY(0px); } }

h1 {
    font-size: 3rem; font-weight: 800; color: var(--main-green);
    text-transform: uppercase; letter-spacing: -2px; margin-bottom: 5px;
    text-shadow: 0 0 25px rgba(80, 250, 123, 0.25);
    line-height: 1.1;
}

/* ДРУКАРСЬКА МАШИНКА */
.typewriter-wrapper {
    display: inline-block;
    background: rgba(20, 20, 20, 0.6);
    padding: 5px 15px; border-radius: 5px;
    margin-top: 15px;
}
.typewriter-text {
    font-family: var(--font-main); color: #aaa; font-weight: 700; letter-spacing: 1px; font-size: 1.1rem;
    overflow: hidden; border-right: 3px solid var(--main-green); white-space: nowrap; margin: 0 auto;
    width: 0; animation: typing 3.5s steps(40, end) forwards, blink-caret .75s step-end infinite;
}
@keyframes typing { from { width: 0 } to { width: 100% } }
@keyframes blink-caret { from, to { border-color: transparent } 50% { border-color: var(--main-green) } }


/* --- СЕКЦІЇ (БЛОКИ) --- */
section { 
    padding: 60px 0; 
    scroll-margin-top: 90px;
    /* ЗМІНЕНО: Фон прозорий, щоб було видно патерн з body */
    background-color: transparent; 
}

.section-header { margin-bottom: 30px; border-left: 5px solid var(--main-green); padding-left: 15px; }
h2 { font-size: 2rem; font-weight: 800; color: #fff; text-transform: uppercase; margin: 0; }
.section-header p { margin-top: 5px; font-size: 0.9rem; color: #aaa; }

/* --- КАРТКИ --- */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 25px; }

.card {
    background-color: var(--card-bg); /* Картка лишається темною, щоб текст читався */
    border: 1px solid #333; 
    border-radius: 10px;
    padding: 30px; 
    transition: 0.3s; 
    position: relative; 
    overflow: hidden;
    display: flex; flex-direction: column;
}
.card:hover {
    border-color: var(--main-green); transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(80, 250, 123, 0.15);
}
.card h3 { color: var(--main-green); margin-bottom: 10px; font-size: 1.3rem; font-weight: 700; }
.card ul { list-style: none; margin-top: 10px; padding: 0; }
.card ul li { margin-bottom: 8px; font-size: 0.9rem; }
.card ul li::before { content: '> '; color: var(--main-green); font-weight: bold; }

/* "ЧОМУ МИ" */
#advantages .grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 25px; }
#advantages .card { flex: 0 1 350px; width: 100%; }
.advantage-icon { font-size: 1.8rem; margin-bottom: 10px; color: var(--main-green); }
.advantage-text { color: #ccc; font-size: 0.9rem; }

/* КЕЙСИ */
.case-tag {
    display: inline-block; align-self: flex-start; margin-bottom: 15px;
    font-size: 0.65rem; padding: 4px 8px; border: 1px solid #333;
    border-radius: 4px; color: #777; font-weight: bold; text-transform: uppercase;
}
.card:hover .case-tag { border-color: var(--main-green); color: var(--main-green); background: var(--dim-green); }

/* ЦІНИ */
.pricing-card { text-align: center; border: 2px dashed #444; }
.pricing-card .price { font-size: 2.2rem; color: #fff; margin: 15px 0; font-weight: 800; }
.pricing-card .price small { font-size: 0.9rem; color: #777; font-weight: normal; margin-right: 5px; }

/* --- ТЕРМІНАЛ (З КРУЖЕЧКАМИ) --- */
.terminal-window {
    background: #0a0a0a;
    border: 1px solid #333;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    overflow: hidden;
    max-width: 800px;
    margin: 0 auto;
}
/* Шапка терміналу */
.terminal-header {
    background: #222; 
    padding: 10px 15px;
    display: flex;
    align-items: center;
    gap: 8px;
    border-bottom: 1px solid #333;
}
/* Точки */
.dot { width: 12px; height: 12px; border-radius: 50%; display: inline-block; }
.red { background: #ff5f56; }
.yellow { background: #ffbd2e; }
.green { background: #27c93f; }

.terminal-body {
    padding: 25px;
    font-family: 'JetBrains Mono', monospace; 
    color: #fff; 
    line-height: 1.8;
    overflow-x: auto;
}

/* ФОРМА */
.contact-form {
    max-width: 500px; margin: 0 auto; background: var(--card-bg); padding: 40px;
    border: 1px solid #333; border-radius: 12px; position: relative; z-index: 10;
}
.form-group { margin-bottom: 20px; text-align: left; }
.form-group label { display: block; color: var(--main-green); margin-bottom: 5px; font-weight: 700; font-size: 0.9rem; }
input, textarea {
    width: 100%; padding: 12px; background: var(--bg-color); border: 1px solid #333;
    color: #fff; font-family: var(--font-main); font-size: 0.95rem; outline: none; transition: 0.3s;
}
input:focus, textarea:focus { border-color: var(--main-green); }

/* КНОПКИ */
.btn {
    display: inline-block; padding: 12px 30px; background: var(--main-green); color: #000;
    text-decoration: none; font-weight: 800; text-transform: uppercase; border: none;
    cursor: pointer; border-radius: 5px; transition: 0.3s; letter-spacing: 0.5px; font-size: 0.9rem;
}
.btn:hover { background: #fff; box-shadow: 0 0 20px var(--main-green); }
.btn-accent { background: transparent; border: 2px solid var(--main-green); color: var(--main-green); }
.btn-accent:hover { background: var(--main-green); color: #000; }

#scrollTopBtn {
    display: none; position: fixed; bottom: 30px; right: 30px; z-index: 999;
    width: 45px; height: 45px; border: none; outline: none;
    background-color: var(--card-bg); color: var(--main-green); border: 2px solid var(--main-green);
    cursor: pointer; border-radius: 8px; box-shadow: 0 0 10px var(--dim-green);
    transition: 0.3s; font-size: 1.2rem; align-items: center; justify-content: center;
}

/* ФУТЕР */
footer { border-top: 1px solid #333; background: var(--bg-color); padding: 40px 0; margin-top: 0; }
.footer-content { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 20px; }
.footer-contacts p { margin: 5px 0; color: #888; font-weight: bold; font-size: 0.9rem; }
.footer-copy { color: #555; font-size: 0.8rem; }

/* МОБІЛЬНА АДАПТАЦІЯ */
@media (max-width: 768px) {
    .burger { display: block; }
    
    /* ЗМІНЕНО: Фон меню такий самий, як у .navbar */
    .nav-menu {
        position: fixed; top: 70px; right: -100%; width: 100%; height: auto;
        
        /* Використовуємо той самий фон, що і в хедері */
        background: rgba(20, 20, 20, 0.95);
        backdrop-filter: blur(10px);
        
        flex-direction: column; align-items: center;
        padding: 30px 0; border-bottom: 2px solid var(--main-green); transition: 0.4s ease-in-out;
    }
    
    .nav-menu.nav-active { right: 0; }
    .nav-links { flex-direction: column; align-items: center; gap: 20px; margin-bottom: 20px; }
    .nav-links a { font-size: 1.1rem; }
    .navbar .btn-accent.desktop-only { display: none; }
    .nav-menu .btn-accent.mobile-only { display: inline-block; }

    h1 { font-size: 2.2rem; margin-top: 10px; }
    .turtle-logo { width: 180px; height: 180px; }
    
    .typewriter-text { font-size: 0.8rem; white-space: normal; height: auto; border-right: none; animation: none; width: 100%; }
    .typewriter-wrapper { padding: 10px; width: 90%; }

    section { padding: 40px 0; scroll-margin-top: 80px; }
    h2 { font-size: 1.8rem; }
    .grid { gap: 15px; }
    .card { padding: 25px; }
    .footer-content { flex-direction: column; text-align: center; gap: 15px; }
    footer .btn-accent { width: 100%; text-align: center; }
}