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

body {
    font-family: 'Roboto', Arial, sans-serif;
    background-color: #000;
    color: #fff;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding-top: 70px;
}

/* Navigation Styles */
.nav-container {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(0, 0, 0, 0.95);
    border-bottom: 1px solid #333;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.nav-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: #fff;
    text-decoration: none;
}

.nav-brand a {
    color: #fff;
    text-decoration: none;
    transition: color 0.3s;
}

.nav-brand a:hover {
    color: #ccc;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 0;
    align-items: center;
}

.nav-link {
    display: block;
    padding: 15px 20px;
    color: #fff;
    text-decoration: none;
    transition: background-color 0.3s, color 0.3s;
    border: none;
    cursor: pointer;
    font-family: 'Roboto', Arial, sans-serif;
    font-size: 1rem;
}

.nav-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: #fff;
}

.nav-link.active {
    background-color: #fff;
    color: #000;
}

/* Mobile Hamburger Menu */
.nav-toggle {
    display: none;
}

.nav-toggle-label {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.nav-toggle-label span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: #fff;
    transition: all 0.3s;
    transform-origin: center;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .nav-toggle-label {
        display: flex;
    }

    .nav-menu {
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        flex-direction: column;
        background-color: rgba(0, 0, 0, 0.98);
        border-bottom: 1px solid #333;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
        gap: 0;
    }

    .nav-link {
        width: 100%;
        padding: 15px 20px;
        border-bottom: 1px solid #222;
    }

    .nav-toggle:checked ~ .nav-menu {
        max-height: 300px;
    }

    .nav-toggle:checked ~ .nav-toggle-label span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }

    .nav-toggle:checked ~ .nav-toggle-label span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle:checked ~ .nav-toggle-label span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
}

.container {
    width: 100%;
    max-width: 1200px;
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    padding: 20px;
}

.card-with-image {
    display: flex;
    align-items: center;
    gap: 40px;
    width: 100%;
}

.robot-container {
    flex-shrink: 0;
    position: relative;
    z-index: 10;
}

.robot-image {
    width: 50px;
    height: auto;
    filter: drop-shadow(0 10px 30px rgba(255, 255, 255, 0.1));
    animation: float 6s ease-in-out infinite;
    position: relative;
    z-index: 10;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

.card {
    background-color: #111;
    border: 1px solid #333;
    border-radius: 8px;
    padding: 40px;
    width: 100%;
    box-shadow: 0 4px 6px rgba(255, 255, 255, 0.1);
}

h1 {
    font-size: 2rem;
    font-weight: 500;
    margin-bottom: 10px;
}

.subtitle {
    color: #888;
    font-size: 0.9rem;
    margin-bottom: 30px;
}

p {
    line-height: 1.6;
    margin-bottom: 20px;
}

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

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

input[type="email"] {
    width: 100%;
    padding: 12px 16px;
    background-color: #000;
    border: 1px solid #444;
    border-radius: 4px;
    color: #fff;
    font-size: 1rem;
    font-family: 'Roboto', Arial, sans-serif;
    transition: border-color 0.3s;
}

input[type="email"]:focus {
    outline: none;
    border-color: #fff;
}

input[type="email"]::placeholder {
    color: #666;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    background-color: #fff;
    color: #000;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: background-color 0.3s, transform 0.1s;
    font-family: 'Roboto', Arial, sans-serif;
}

.btn:hover {
    background-color: #ddd;
}

.btn:active {
    transform: scale(0.98);
}

.btn-link {
    display: inline-block;
    color: #fff;
    text-decoration: underline;
    margin-top: 20px;
}

.btn-link:hover {
    color: #ccc;
}

.success-message {
    background-color: #1a3d1a;
    border: 1px solid #2d5f2d;
    border-radius: 4px;
    padding: 20px;
    margin: 20px 0;
}

.error-message {
    background-color: #3d1a1a;
    border: 1px solid #5f2d2d;
    border-radius: 4px;
    padding: 20px;
    margin: 20px 0;
}

.email-display {
    font-weight: 500;
    font-size: 1.1rem;
    color: #fff;
    margin-top: 10px;
}

footer {
    margin-top: 40px;
    padding: 20px;
    text-align: center;
    color: #666;
    font-size: 0.9rem;
}

footer p {
    margin: 0;
}

@media (max-width: 968px) {
    .card-with-image {
        flex-direction: column;
        gap: 30px;
    }

    .robot-image {
        width: 37.5px;
    }

    .container {
        justify-content: flex-start;
    }
}

@media (max-width: 640px) {
    body {
        padding-top: 60px;
    }

    .nav-content {
        height: 60px;
        padding: 0 15px;
    }

    .nav-brand {
        font-size: 1.2rem;
    }

    .card {
        padding: 30px 20px;
    }

    h1 {
        font-size: 1.5rem;
    }

    .robot-image {
        width: 25px;
    }

    .container {
        padding: 15px;
    }
}