/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #0f172a;
    background-color: #ffffff;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Container */
.container {
    max-width: 768px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Header */
.header {
    background-color: #ffffff;
    border-bottom: 1px solid #e2e8f0;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: #0f172a;
    text-decoration: none;
}

.nav {
    display: flex;
    gap: 0.5rem;
}

.nav-link {
    padding: 0.5rem 1rem;
    color: #64748b;
    text-decoration: none;
    border-radius: 0.375rem;
    font-weight: 500;
    transition: all 0.15s ease;
    font-size: 0.875rem;
}

.nav-link:hover {
    color: #0f172a;
    background-color: #f1f5f9;
}

.nav-link.active {
    color: #ffffff;
    background-color: #0f172a;
}

/* Main content */
.main {
    flex: 1;
    padding: 2rem 0;
}

.content {
    max-width: 100%;
}

.title {
    font-size: 2.25rem;
    font-weight: 800;
    color: #0f172a;
    margin-bottom: 0.5rem;
}

.subtitle {
    color: #64748b;
    font-size: 1rem;
    margin-bottom: 2rem;
}

/* Cards */
.card {
    background-color: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 0.5rem;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    transition: box-shadow 0.15s ease;
}

.card:hover {
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.card h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #0f172a;
    margin-bottom: 0.75rem;
}

.card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: #0f172a;
    margin-bottom: 0.5rem;
}

.card p {
    color: #475569;
    margin-bottom: 0.75rem;
}

.card p:last-child {
    margin-bottom: 0;
}

.card ul, .card ol {
    color: #475569;
    margin-left: 1.5rem;
    margin-bottom: 0.75rem;
}

.card li {
    margin-bottom: 0.25rem;
}

/* FAQ items */
.faq-item {
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #f1f5f9;
}

.faq-item:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.faq-item h3 {
    margin-bottom: 0.5rem;
}

.faq-item p:last-child {
    margin-bottom: 0;
}

/* Contact email */
.contact-email {
    color: #0f172a !important;
    font-weight: 600;
    background-color: #f1f5f9;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    font-family: ui-monospace, SFMono-Regular, "SF Mono", Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    font-size: 0.875rem;
}

/* Contact Form */
.contact-form {
    margin: 1.5rem 0;
}

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

.form-label {
    display: block;
    font-weight: 600;
    color: #0f172a;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #d1d5db;
    border-radius: 0.375rem;
    font-size: 1rem;
    line-height: 1.5;
    color: #0f172a;
    background-color: #ffffff;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

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

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

.form-button {
    background-color: #0f172a;
    color: #ffffff;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.375rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.15s ease, transform 0.1s ease;
}

.form-button:hover {
    background-color: #1e293b;
    transform: translateY(-1px);
}

.form-button:active {
    transform: translateY(0);
}

.form-button:focus {
    outline: 2px solid #3b82f6;
    outline-offset: 2px;
}

.contact-info {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid #e2e8f0;
}

.contact-info p {
    margin-bottom: 0.5rem;
}

.contact-info p:last-child {
    margin-bottom: 0;
}

/* Footer */
.footer {
    background-color: #f8fafc;
    border-top: 1px solid #e2e8f0;
    padding: 1.5rem 0;
    margin-top: auto;
}

.footer p {
    text-align: center;
    color: #64748b;
    font-size: 0.875rem;
}

/* Mobile responsiveness */
@media (max-width: 640px) {
    .container {
        padding: 0 0.75rem;
    }
    
    .header .container {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
    }
    
    .nav {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .nav-link {
        flex: 1;
        text-align: center;
        min-width: 0;
    }
    
    .title {
        font-size: 1.875rem;
    }
    
    .card {
        padding: 1rem;
        margin-bottom: 1rem;
    }
    
    .main {
        padding: 1.5rem 0;
    }
    
    .contact-email {
        word-break: break-all;
    }
}

@media (max-width: 480px) {
    .title {
        font-size: 1.5rem;
    }
    
    .card h2 {
        font-size: 1.125rem;
    }
    
    .nav-link {
        font-size: 0.8rem;
        padding: 0.4rem 0.6rem;
    }
}

/* Focus states for accessibility */
.nav-link:focus {
    outline: 2px solid #3b82f6;
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .header, .footer {
        display: none;
    }
    
    .card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #e2e8f0;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.5;
    }
}

/* Dark mode support (optional) */
@media (prefers-color-scheme: dark) {
    body {
        background-color: #0f172a;
        color: #e2e8f0;
    }
    
    .header {
        background-color: #0f172a;
        border-bottom-color: #334155;
    }
    
    .logo {
        color: #e2e8f0;
    }
    
    .nav-link {
        color: #94a3b8;
    }
    
    .nav-link:hover {
        color: #e2e8f0;
        background-color: #1e293b;
    }
    
    .nav-link.active {
        color: #0f172a;
        background-color: #e2e8f0;
    }
    
    .title {
        color: #e2e8f0;
    }
    
    .subtitle {
        color: #94a3b8;
    }
    
    .card {
        background-color: #1e293b;
        border-color: #334155;
    }
    
    .card h2, .card h3 {
        color: #e2e8f0;
    }
    
    .card p, .card ul, .card ol {
        color: #cbd5e1;
    }
    
    .faq-item {
        border-bottom-color: #334155;
    }
    
    .contact-email {
        color: #0f172a !important;
        background-color: #cbd5e1;
    }
    
    .form-label {
        color: #e2e8f0;
    }
    
    .form-input,
    .form-textarea {
        background-color: #1e293b;
        border-color: #475569;
        color: #e2e8f0;
    }
    
    .form-input:focus,
    .form-textarea:focus {
        border-color: #60a5fa;
        box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.1);
    }
    
    .form-input::placeholder,
    .form-textarea::placeholder {
        color: #94a3b8;
    }
    
    .form-button {
        background-color: #e2e8f0;
        color: #0f172a;
    }
    
    .form-button:hover {
        background-color: #cbd5e1;
    }
    
    .contact-info {
        border-top-color: #334155;
    }
    
    .footer {
        background-color: #1e293b;
        border-top-color: #334155;
    }
    
    .footer p {
        color: #94a3b8;
    }
}