:root {
    --primary-blue: #1e40af;
    --secondary-blue: #3b82f6;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --white: #ffffff;
    --black: #000000;
    --gray-light: #f3f4f6;
    --gray-medium: #e5e7eb;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--text-dark);
    line-height: 1.5;
    background-color: var(--white);
}

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

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Announcement Bar */
.announcement-bar {
    background-color: var(--black);
    color: var(--white);
    text-align: center;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.announcement-bar span {
    font-weight: bold;
    color: #fbbf24;
}

/* Header & Nav */
header {
    border-bottom: 1px solid var(--gray-medium);
    position: sticky;
    top: 0;
    background: var(--white);
    z-index: 100;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo img {
    height: 40px;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-text .name {
    font-weight: bold;
    font-size: 1.25rem;
}

.logo-text .tagline {
    font-size: 0.75rem;
    color: var(--text-light);
}

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

.nav-links a {
    font-weight: 500;
    font-size: 0.9375rem;
    color: var(--text-dark);
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--primary-blue);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.lang-switch {
    display: flex;
    gap: 0.5rem;
    background: var(--gray-light);
    padding: 0.25rem;
    border-radius: 9999px;
}

.lang-btn {
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    cursor: pointer;
    border: none;
    background: transparent;
}

.lang-btn.active {
    background: var(--white);
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

.icon-btn {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-dark);
}

/* Page Header / Hero for subpages */
.page-header {
    background-color: #1e3a8a;
    color: var(--white);
    padding: 4rem 0;
    text-align: center;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

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

.section-title {
    font-size: 2rem;
    margin-bottom: 2rem;
    text-align: center;
}

/* Grid layouts */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.card {
    background: var(--white);
    border-radius: 0.75rem;
    padding: 2rem;
    border: 1px solid var(--gray-medium);
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

/* Footer */
footer {
    background: #111827;
    color: #d1d5db;
    padding: 4rem 0 2rem;
    margin-top: 4rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 4rem;
}

.footer-col h4 {
    color: var(--white);
    margin-bottom: 1.5rem;
}

.footer-col ul li {
    margin-bottom: 0.75rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #374151;
    font-size: 0.875rem;
}

.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    display: inline-block;
    transition: background 0.2s;
}

.btn-primary {
    background: var(--primary-blue);
    color: var(--white);
    border: none;
}

.btn-primary:hover {
    background: #1e3a8a;
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
}