:root {
    --bg-main: #f8f9fa;
    --bg-card: #ffffff;
    --text-main: #212529;
    --text-muted: #6c757d;
    --accent: #2ec4b6;
    --accent-light: rgba(46, 196, 182, 0.1);
    --border-color: #e9ecef;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
    padding-bottom: 60px;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-main);
    text-decoration: none;
}

.logo span {
    color: var(--accent);
}

.nav-menu a {
    color: var(--text-muted);
    text-decoration: none;
    margin-left: 25px;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.2s;
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
    text-align: center;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--accent);
    color: #fff;
}

.btn-primary:hover {
    opacity: 0.9;
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    color: var(--text-main);
    border-color: var(--text-muted);
}

/* Layouts & Cards */
.content-section {
    padding: 60px 0;
}

.section-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-main);
}

.text-block {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 30px;
    margin-bottom: 30px;
    text-align: left;
}

.text-block p {
    color: var(--text-muted);
    font-size: 15px;
    margin-bottom: 15px;
}

/* Footer */
.footer {
    background: var(--bg-card);
    border-top: 1px solid var(--border-color);
    padding: 40px 0;
    margin-top: 60px;
    font-size: 13px;
    color: var(--text-muted);
}

.footer-links {
    margin-top: 15px;
    display: flex;
    gap: 20px;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
}

.footer-links a:hover {
    color: var(--accent);
}

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