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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #2c3e50;
    background: linear-gradient(135deg, #f8fafc, #e2e8f0);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 80px 0;
}

.hero h1 {
    font-size: 4rem;
    font-weight: bold;
    margin-bottom: 24px;
    background: linear-gradient(135deg, #3b82f6, #06b6d4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero .tagline {
    font-size: 1.875rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: #1e293b;
}

.hero .description {
    font-size: 1.25rem;
    color: #64748b;
    margin-bottom: 48px;
    max-width: 768px;
    margin-left: auto;
    margin-right: auto;
}

/* How It Works Section */
.how-it-works {
    background: white;
    padding: 80px 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: bold;
    text-align: center;
    margin-bottom: 64px;
    color: #1e293b;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.feature-card {
    text-align: center;
    padding: 32px;
    border-radius: 16px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.feature-card:hover {
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.feature-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
}

.feature-icon.protection {
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
}

.feature-icon.trusted {
    background: linear-gradient(135deg, #10b981, #059669);
}

.feature-icon.privacy {
    background: linear-gradient(135deg, #06b6d4, #3b82f6);
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: #1e293b;
}

.feature-description {
    color: #64748b;
}

/* Features Section */
.features-section {
    padding: 80px 0;
}

.features-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 48px;
    align-items: center;
}

.perfect-for h3 {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 24px;
    color: #1e293b;
}

.user-types {
    list-style: none;
}

.user-types li {
    display: flex;
    align-items: center;
    margin-bottom: 16px;
}

.user-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    margin-right: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    color: white;
}

.user-icon.seniors { background: #3b82f6; }
.user-icon.parents { background: #10b981; }
.user-icon.adventurers { background: #06b6d4; }
.user-icon.drivers { background: #8b5cf6; }

.peace-of-mind {
    background: white;
    padding: 32px;
    border-radius: 24px;
    border: 1px solid #e2e8f0;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
}

.peace-of-mind h3 {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 24px;
    color: #1e293b;
}

.peace-of-mind ul {
    list-style: none;
}

.peace-of-mind li {
    display: flex;
    align-items: flex-start;
    margin-bottom: 16px;
}

.feature-dot {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    margin-right: 12px;
    margin-top: 2px;
    flex-shrink: 0;
}

.feature-dot.primary { background: #3b82f6; }
.feature-dot.trust { background: #10b981; }
.feature-dot.safety { background: #06b6d4; }
.feature-dot.accent { background: #8b5cf6; }

/* Personal Message Section */
.personal-message {
    padding: 80px 0;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(16, 185, 129, 0.1));
}

.message-card {
    background: white;
    padding: 48px;
    border-radius: 24px;
    border: 1px solid #e2e8f0;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    max-width: 800px;
    margin: 0 auto;
}

.message-card h2 {
    font-size: 2rem;
    font-weight: bold;
    text-align: center;
    margin-bottom: 32px;
    color: #1e293b;
}

.message-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 24px 0 12px 0;
    color: #3b82f6;
}

.message-card p {
    margin-bottom: 12px;
    color: #1e293b;
}

.oh-yeah {
    background: rgba(139, 92, 246, 0.1);
    padding: 24px;
    border-radius: 16px;
    border: 1px solid rgba(139, 92, 246, 0.2);
    margin: 24px 0;
}

.oh-yeah h3 {
    color: #8b5cf6;
}

.final-message {
    text-align: center;
    font-weight: 600;
    font-size: 1.125rem;
    margin-top: 24px;
}

/* Sign Up Section */
.signup-section {
    padding: 80px 0;
    text-align: center;
}

.signup-form {
    max-width: 500px;
    margin: 0 auto;
}

.signup-form h2 {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 32px;
    color: #1e293b;
}

.signup-form p {
    font-size: 1.125rem;
    color: #64748b;
}

.form-group {
    margin-bottom: 24px;
}

.phone-input {
    width: 100%;
    padding: 16px 24px;
    border-radius: 16px;
    border: 1px solid #d1d5db;
    background: white;
    font-size: 1.125rem;
    margin-bottom: 16px;
}

.phone-input:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.device-selection {
    text-align: center;
    margin-bottom: 16px;
}

.radio-group {
    display: flex;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
}

.radio-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    padding: 12px 16px;
    border-radius: 12px;
    border: 1px solid #d1d5db;
    background: white;
    transition: all 0.3s ease;
    width: 47%;
    justify-content: flex-start;
}

.radio-label:hover {
    border-color: #3b82f6;
    background: rgba(59, 130, 246, 0.05);
}

.radio {
    width: 18px;
    height: 18px;
    accent-color: #3b82f6;
}

.radio-label input[type="radio"]:checked + span {
    color: #3b82f6;
    font-weight: 600;
}

.radio-label:has(input[type="radio"]:checked) {
    border-color: #3b82f6;
    background: rgba(59, 130, 246, 0.1);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.1);
}

.submit-btn {
    width: 100%;
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    color: white;
    padding: 16px 32px;
    border-radius: 16px;
    border: none;
    font-size: 1.125rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 10px 25px -5px rgba(59, 130, 246, 0.4);
}

.submit-btn:hover {
    background: linear-gradient(135deg, #1d4ed8, #3b82f6);
    box-shadow: 0 15px 35px -5px rgba(59, 130, 246, 0.5);
    transform: translateY(-2px);
}

.submit-btn:disabled {
    background: #9ca3af;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.submit-btn:disabled:hover {
    background: #9ca3af;
    transform: none;
    box-shadow: none;
}

/* Loading Spinner */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid #ffffff;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 1s ease-in-out infinite;
    margin-right: 8px;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.submit-btn-content {
    display: flex;
    align-items: center;
    justify-content: center;
}

.success-message {
    background: rgba(16, 185, 129, 0.1);
    padding: 32px;
    border-radius: 16px;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.success-icon {
    width: 64px;
    height: 64px;
    background: #10b981;
    border-radius: 50%;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
}

.success-message h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #10b981;
    margin-bottom: 8px;
}

/* Footer */
.footer {
    background: #f1f5f9;
    padding: 32px 0;
    text-align: center;
    color: #64748b;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    .hero .tagline {
        font-size: 1.5rem;
    }

    .hero .description {
        font-size: 1.125rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .features-content {
        grid-template-columns: 1fr;
    }

    .message-card {
        padding: 32px 24px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero {
        padding: 48px 0;
    }

    .how-it-works, .features-section, .personal-message, .signup-section {
        padding: 48px 0;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .radio-group {
        flex-direction: column;
        gap: 12px;
        align-items: center;
    }

    .radio-label {
        width: 100%;
    }
}