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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav {
    padding: 1rem 0;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: #2563eb;
}

.logo a {
    text-decoration: none;
    color: inherit;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: #2563eb;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
    color: white;
    padding: 5rem 0;
    text-align: center;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.tagline {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    opacity: 0.95;
    color: rgba(255, 255, 255, 0.95);
}

.description {
    font-size: 1.15rem;
    max-width: 700px;
    margin: 0 auto;
    opacity: 1;
    color: rgba(255, 255, 255, 0.95);
    line-height: 1.7;
}

/* Sections */
section {
    padding: 4rem 0;
}

section:nth-child(even) {
    background-color: #fff;
}

section h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    text-align: center;
    color: #1e293b;
}

section p {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: #64748b;
}

/* Features */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature {
    background-color: #f8fafc;
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.feature h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #2563eb;
}

.feature p {
    color: #64748b;
}

/* Apps section – left-align card content and fix list alignment */
.apps .feature {
    text-align: left;
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
}

.apps .feature ul {
    margin: 1rem 0;
    padding-left: 1.5rem;
    list-style-position: outside;
}

.apps .feature li {
    margin-bottom: 0.5rem;
    color: #64748b;
    padding-left: 0.25rem;
}

.apps .feature p:last-of-type {
    margin-bottom: 0;
}

/* Privacy Content */
.privacy-content {
    background-color: #fff;
    padding: 4rem 0;
}

.privacy-content h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #1e293b;
}

.privacy-content h2 {
    font-size: 1.8rem;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    color: #1e293b;
    text-align: left;
}

.privacy-content h3 {
    font-size: 1.3rem;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    color: #334155;
}

.privacy-content ul {
    margin-left: 2rem;
    margin-bottom: 1.5rem;
}

.privacy-content li {
    margin-bottom: 0.5rem;
    color: #64748b;
}

.privacy-content p {
    margin-bottom: 1rem;
    color: #64748b;
}

.privacy-content strong {
    color: #1e293b;
}

.privacy-content a {
    color: #2563eb;
    text-decoration: none;
}

.privacy-content a:hover {
    text-decoration: underline;
}

/* Contact Form */
.contact-form {
    max-width: 600px;
    margin: 2rem auto 0;
    background-color: #fff;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #1e293b;
}

.required {
    color: #dc2626;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #cbd5e1;
    border-radius: 4px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.g-recaptcha {
    margin: 1rem 0;
    display: flex;
    justify-content: center;
}

.recaptcha-warning {
    padding: 1rem;
    background-color: #fef3c7;
    color: #92400e;
    border: 1px solid #fbbf24;
    border-radius: 4px;
    text-align: center;
    font-size: 0.9rem;
}

.submit-btn {
    background-color: #2563eb;
    color: white;
    padding: 0.75rem 2rem;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s;
    width: 100%;
}

.submit-btn:hover {
    background-color: #1e40af;
}

.submit-btn:active {
    transform: translateY(1px);
}

.form-message {
    max-width: 600px;
    margin: 1rem auto;
    padding: 1rem;
    border-radius: 4px;
    font-weight: 500;
}

.form-message.success {
    background-color: #d1fae5;
    color: #065f46;
    border: 1px solid #6ee7b7;
}

.form-message.error {
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #fca5a5;
}

/* Footer */
footer {
    background-color: #1e293b;
    color: white;
    padding: 2rem 0;
    text-align: center;
}

footer p {
    margin-bottom: 0.5rem;
    color: #cbd5e1;
}

footer a {
    color: #60a5fa;
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        flex-direction: column;
        gap: 1rem;
    }

    nav .container {
        flex-direction: column;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .tagline {
        font-size: 1.2rem;
    }

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

    section h2 {
        font-size: 2rem;
    }

    .contact-form {
        padding: 1.5rem;
    }
}