* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Montserrat', sans-serif;
}

body {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    font-size: 16px;
}

nav {
    background: linear-gradient(to right, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0.85));
    padding: 1rem;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    background: linear-gradient(45deg, #6c63ff, #ff6b6b);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: #333;
    transition: all 0.3s ease;
    padding: 0.5rem 1rem;
    background: linear-gradient(90deg, #6c63ff, #ff6b6b);
    background-size: 200% 100%;
    background-position: 100% 0;
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.nav-links a:hover {
    background-position: 0 0;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 0.3rem;
    cursor: pointer;
}

.hamburger div {
    width: 20px;
    height: 3px;
    background: #333;
    border-radius: 2px;
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    /* КРИТИЧЕСКАЯ ЗАЩИТА - мобильное меню СКРЫТО пока не активно */
    .nav-links:not(.active) {
        display: none !important;
        visibility: hidden !important;
        opacity: 0 !important;
        pointer-events: none !important;
    }

    .nav-links {
        display: none;
        flex-direction: column;
        gap: 1rem;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(255, 255, 255, 0.95);
        padding: 1rem;
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    }

    .nav-links.active {
        display: flex;
    }
}

.login-container {
    max-width: 400px;
    margin: 100px auto;
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.login-form {
    display: flex;
    flex-direction: column;
}

.login-form h2 {
    font-size: 24px;
    margin-bottom: 20px;
    color: #333;
    text-align: center;
}

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

.input-group label {
    font-size: 14px;
    margin-bottom: 5px;
    color: #555;
}

.input-group input {
    width: 100%;
    padding: 10px;
    font-size: 16px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

.login-btn {
    background: linear-gradient(135deg, #6c63ff, #ff6b6b);
    color: white;
    padding: 10px;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
    transition: background 0.3s ease;
}

.login-btn:hover {
    background: linear-gradient(135deg, #ff6b6b, #6c63ff);
}