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

:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --bg-gray: #f3f4f6;
    --border-color: #e5e7eb;
    --white: #ffffff;
    --focus-ring: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background: var(--white);
}

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

/* Header and navigation */
header {
    background: var(--white);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.nav-brand a {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
    text-decoration: none;
}

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

.nav-menu a {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-color);
}

.nav-menu a:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 4px;
    border-radius: 2px;
}

/* Hero section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--white);
    padding: 5rem 0;
    text-align: center;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.hero .lead {
    font-size: 1.25rem;
    max-width: 700px;
    margin: 0 auto;
    opacity: 0.95;
}

/* Page header */
.page-header {
    background: var(--bg-light);
    padding: 3rem 0;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.page-header h1 {
    font-size: 2.25rem;
    margin-bottom: 0.75rem;
    font-weight: 700;
}

.page-header .lead {
    font-size: 1.125rem;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto;
}

/* Notice section */
.notice {
    background: #fef3c7;
    border-top: 3px solid #f59e0b;
    border-bottom: 3px solid #f59e0b;
    padding: 1.5rem 0;
    margin-top: 0;
}

.notice p {
    color: #92400e;
    text-align: center;
    font-size: 0.95rem;
    max-width: 800px;
    margin: 0 auto;
}

/* Content sections */
.content-section {
    padding: 4rem 0;
}

.content-section.gray {
    background: var(--bg-gray);
}

.content-section h2 {
    font-size: 1.875rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
}

.content-section p {
    margin-bottom: 1rem;
    color: var(--text-light);
    line-height: 1.75;
}

/* Grid layouts */
.grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.grid.reverse {
    direction: rtl;
}

.grid.reverse > * {
    direction: ltr;
}

.content-image img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    display: block;
}

/* Text columns */
.text-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 1.5rem;
}

/* Feature cards */
.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.feature-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
    font-weight: 600;
}

.feature-card p {
    color: var(--text-light);
    margin: 0;
}

/* Info boxes */
.info-boxes {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.info-box {
    background: var(--bg-light);
    padding: 1.75rem;
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
}

.info-box h3 {
    font-size: 1.125rem;
    margin-bottom: 0.75rem;
    color: var(--text-dark);
    font-weight: 600;
}

.info-box p {
    margin: 0;
    color: var(--text-light);
    font-size: 0.95rem;
}

/* Contact page */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
}

.contact-details {
    margin-top: 1.5rem;
}

.contact-item {
    margin-bottom: 2rem;
}

.contact-item h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.contact-item p {
    color: var(--text-light);
    margin: 0;
}

/* Forms */
.contact-form {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 8px;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-dark);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-family: inherit;
    font-size: 1rem;
    color: var(--text-dark);
    background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: var(--focus-ring);
}

.btn-primary {
    background: var(--primary-color);
    color: var(--white);
    border: none;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 500;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-primary:hover {
    background: var(--primary-hover);
}

.btn-primary:focus {
    outline: none;
    box-shadow: var(--focus-ring);
}

/* Legal content */
.legal-content {
    max-width: 800px;
    margin: 0 auto;
}

.legal-content h2 {
    font-size: 1.5rem;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
}

.legal-content h2:first-child {
    margin-top: 0;
}

.legal-content p {
    margin-bottom: 1.25rem;
}

.legal-note {
    background: var(--bg-gray);
    padding: 1.25rem;
    border-radius: 4px;
    border-left: 4px solid var(--primary-color);
    margin-top: 3rem;
    font-size: 0.95rem;
}

/* Footer */
footer {
    background: var(--text-dark);
    color: var(--white);
    padding: 2rem 0;
    margin-top: 4rem;
}

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

.footer-content p {
    margin: 0;
    opacity: 0.9;
}

.footer-nav {
    display: flex;
    gap: 1.5rem;
}

.footer-nav a {
    color: var(--white);
    text-decoration: none;
    opacity: 0.9;
    transition: opacity 0.2s;
}

.footer-nav a:hover {
    opacity: 1;
    text-decoration: underline;
}

.footer-nav a:focus {
    outline: 2px solid var(--white);
    outline-offset: 4px;
    border-radius: 2px;
}

/* Responsive design */
@media (max-width: 768px) {
    .nav-menu {
        gap: 1rem;
        font-size: 0.95rem;
    }

    .hero h1 {
        font-size: 2rem;
    }

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

    .page-header h1 {
        font-size: 1.875rem;
    }

    .grid,
    .grid.reverse {
        grid-template-columns: 1fr;
        gap: 2rem;
        direction: ltr;
    }

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

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

    .info-boxes {
        grid-template-columns: 1fr;
    }

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

    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    nav {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-menu {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }

    .hero {
        padding: 3rem 0;
    }

    .hero h1 {
        font-size: 1.75rem;
    }

    .content-section {
        padding: 2.5rem 0;
    }
}

@media (max-width: 360px) {
    .container {
        padding: 0 15px;
    }

    .hero h1 {
        font-size: 1.5rem;
    }

    .hero .lead {
        font-size: 1rem;
    }

    .content-section h2 {
        font-size: 1.5rem;
    }
}