:root {
    --bg: #0b0e14;
    --panel: rgba(20, 24, 33, 0.75);
    --accent: #7c4dff;
    --cyan: #00e5ff;
    --text: #e2e8f0;
    --text-dim: #94a3b8;
    --border: rgba(255, 255, 255, 0.08);
    --card-bg: rgba(30, 41, 59, 0.4);
}

[data-theme="light"] {
    --bg: #f1f5f9;
    --panel: rgba(255, 255, 255, 0.85);
    --accent: #6366f1;
    --text: #0f172a;
    --text-dim: #475569;
    --border: rgba(0, 0, 0, 0.1);
    --card-bg: rgba(255, 255, 255, 0.9);
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: 'Inter', sans-serif;
    margin: 0; min-height: 100vh;
    transition: background 0.4s, color 0.4s;
    display: flex; flex-direction: column;
    background-image: radial-gradient(circle at top right, rgba(124, 77, 255, 0.05), transparent);
}

/* --- ВЕРХНЯЯ ПАНЕЛЬ --- */
.top-bar {
    position: fixed; top: 0; left: 0; right: 0;
    height: 70px; background: var(--panel);
    backdrop-filter: blur(25px) saturate(180%); border-bottom: 1px solid var(--border);
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 30px; z-index: 1100; box-shadow: 0 4px 30px rgba(0,0,0,0.1);
}

/* --- МЕНЮ (КАПСУЛА) --- */
.main-nav {
    position: fixed; background: var(--panel);
    backdrop-filter: blur(25px) saturate(180%); border: 1px solid var(--border);
    display: flex; gap: 15px; z-index: 1000; transition: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
}

.main-nav a { 
    color: var(--text-dim); font-size: 20px; transition: 0.3s; 
    width: 45px; height: 45px; display: flex; align-items: center; justify-content: center;
    border-radius: 50%; text-decoration: none;
}
.main-nav a:hover { color: var(--cyan); background: rgba(255,255,255,0.08); transform: scale(1.15); box-shadow: 0 0 15px rgba(0, 229, 255, 0.2); }

/* ПЛАВАЮЩАЯ КАПСУЛА - СЛЕВА */
body[data-layout="left"] .main-nav {
    top: 50%; left: 20px; transform: translateY(-50%); width: 70px;
    flex-direction: column; align-items: center; padding: 20px 0;
    border-radius: 35px;
}

/* ПЛАВАЮЩАЯ КАПСУЛА - СПРАВА */
body[data-layout="right"] .main-nav {
    top: 50%; right: 20px; transform: translateY(-50%); width: 70px;
    flex-direction: column; align-items: center; padding: 20px 0;
    border-radius: 35px;
}

/* ПЛАВАЮЩАЯ КАПСУЛА - СНИЗУ */
body[data-layout="bottom"] .main-nav {
    bottom: 20px; left: 50%; transform: translateX(-50%); height: 70px;
    flex-direction: row; align-items: center; padding: 0 20px;
    border-radius: 35px;
}

/* --- ОСНОВНОЙ КОНТЕЙНЕР --- */
.container { 
    margin-top: 70px; transition: 0.5s; padding: 40px; 
    max-width: 1400px; margin-inline: auto; box-sizing: border-box; width: 100%;
}
body[data-layout="left"] .container { padding-left: 120px; }
body[data-layout="right"] .container { padding-right: 120px; }
body[data-layout="bottom"] .container { padding-bottom: 110px; }

/* --- БЛОКИ (GLASSMORPHISM) --- */
.glass {
    background: var(--panel); backdrop-filter: blur(25px) saturate(180%);
    border: 1px solid var(--border); border-radius: 24px; padding: 30px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
}

.stat-card {
    background: var(--card-bg); border: 1px solid var(--border);
    border-radius: 20px; padding: 25px; transition: 0.3s;
}
.stat-card:hover { border-color: var(--accent); transform: translateY(-5px); box-shadow: 0 10px 30px rgba(0,0,0,0.3); }

/* --- ФОРМЫ И КНОПКИ --- */
.cyber-input {
    background: rgba(0,0,0,0.2); border: 1px solid var(--border);
    color: var(--text); padding: 15px; border-radius: 12px; width: 100%;
    font-family: 'JetBrains Mono'; outline: none; margin-bottom: 15px; box-sizing: border-box;
}
.cyber-input:focus { border-color: var(--cyan); box-shadow: 0 0 10px rgba(0, 229, 255, 0.1); }

.btn {
    background: var(--accent); color: white; border: none;
    padding: 12px 24px; border-radius: 12px; cursor: pointer;
    font-family: 'JetBrains Mono'; font-weight: bold; transition: 0.3s;
}
.btn:hover { box-shadow: 0 0 20px var(--accent); transform: translateY(-2px); filter: brightness(1.1); }

.serif-huge { font-family: 'Cinzel', serif; letter-spacing: 5px; color: var(--text); margin-top: 0;}