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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #2d1b4e 0%, #4a2c5e 50%, #6b3d6f 100%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.navbar {
    background: rgba(30, 20, 50, 0.8);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: white;
    font-weight: 600;
    font-size: 1.1rem;
}

.logo-img {
    height: 32px;
    width: auto;
}

nav {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.3s;
}

.nav-link:hover {
    color: white;
}

.main-content {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6rem 2rem 4rem;
}

.card {
    background: white;
    border-radius: 8px;
    padding: 3rem 4rem;
    max-width: 500px;
    width: 100%;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.icon-container {
    display: flex;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.icon-container svg {
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.15));
}

.title {
    color: #3B82F6;
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.subtitle {
    color: #374151;
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

.instruction {
    color: #6B7280;
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 1.5rem;
}

.captcha-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem 1.5rem;
    margin-bottom: 2rem;
    border: 2px solid #D1D5DB;
    border-radius: 4px;
    background: #FFFFFF;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.captcha-checkbox {
    display: flex;
    align-items: center;
}

.captcha-input {
    display: none;
}

.captcha-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    user-select: none;
}

.checkbox-box {
    width: 28px;
    height: 28px;
    border: 2px solid #9CA3AF;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
    background: white;
}

.captcha-input:checked + .captcha-label .checkbox-box {
    background: #22C55E;
    border-color: #22C55E;
}

.captcha-input:checked + .captcha-label .checkbox-box::after {
    content: '✓';
    color: white;
    font-size: 18px;
    font-weight: bold;
}

.checkbox-text {
    color: #374151;
    font-size: 0.95rem;
    font-weight: 500;
}

.captcha-success {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #22C55E;
    font-weight: 500;
    font-size: 0.95rem;
}

.captcha-logo {
    display: flex;
    align-items: center;
    margin-left: auto;
}

.cf-link {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.cf-link svg {
    height: 24px;
    width: auto;
}

.logo-text {
    fill: #404041;
}

.btn-continue {
    background: #22C55E;
    color: white;
    border: none;
    border-radius: 6px;
    padding: 0.75rem 2rem;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: background 0.3s, transform 0.2s;
    text-decoration: none;
}

.btn-continue:hover {
    background: #16A34A;
    transform: translateY(-1px);
}

.btn-continue:active {
    transform: translateY(0);
}

.btn-continue svg {
    transform: rotate(-90deg);
}

.footer {
    background: rgba(20, 10, 40, 0.6);
    backdrop-filter: blur(10px);
    padding: 1.5rem 0;
    margin-top: auto;
}

.footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 0.85rem;
    transition: color 0.3s;
}

.footer-link:hover {
    color: white;
}

.footer-text {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.85rem;
}

.scroll-top {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    cursor: pointer;
    transition: background 0.3s;
}

.scroll-top:hover {
    background: rgba(255, 255, 255, 0.2);
}

@media (max-width: 768px) {
    .navbar .container {
        flex-direction: column;
        gap: 1rem;
    }
    
    nav {
        gap: 1.5rem;
    }
    
    .card {
        padding: 2rem 1.5rem;
    }
    
    .footer .container {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}