* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #f8f9fa;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: white;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    z-index: 1001;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 24px;
}

.header-title {
    font-size: 20px;
    font-weight: 600;
    color: #1a1a1a;
    text-decoration: none;
}

.header-title:hover {
    color: #d63031;
}

.header-title .mobile-text {
    display: none;
}

.header-nav {
    display: flex;
    gap: 20px;
}

.header-nav a {
    color: #005fff;
    text-decoration: underline;
    font-size: 14px;
    font-weight: 500;
    padding: 8px 12px;
    border-radius: 4px;
    transition: all 0.2s;
}

.header-nav a:hover {
    background: #e3f2fd;
    color: #1976d2;
}

.header-nav a.active {
    background: #d63031;
    color: white;
}

/* Burger menu */
.burger-menu {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
    z-index: 1002;
}

.burger-menu span {
    width: 25px;
    height: 3px;
    background: #1a1a1a;
    border-radius: 3px;
    transition: all 0.3s;
}

.burger-menu.active span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

.burger-menu.active span:nth-child(2) {
    opacity: 0;
}

.burger-menu.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Content */
.content {
    max-width: 1000px;
    margin: 80px auto 40px;
    padding: 40px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

h1 {
    color: #d63031;
    font-size: 32px;
    margin: 0 0 24px 0;
    border-bottom: 3px solid #d63031;
    padding-bottom: 16px;
}

h2 {
    color: #1a1a1a;
    font-size: 24px;
    margin: 32px 0 16px 0;
}

h3 {
    color: #444;
    font-size: 20px;
    margin: 24px 0 12px 0;
}

p, ul, li {
    color: #444;
    line-height: 1.8;
    margin-bottom: 16px;
}

.alert, .danger, .important {
    padding: 16px;
    margin: 24px 0;
    border-radius: 4px;
    border-left: 4px solid;
}

.alert {
    background: #fff3cd;
    border-color: #ffc107;
}

.danger {
    background: #f8d7da;
    border-color: #d63031;
}

.important {
    background: #d1ecf1;
    border-color: #0c5460;
}

.success-box {
    background: #d4edda;
    border-left: 4px solid #28a745;
    padding: 20px;
    margin: 24px 0;
}

.cta-box {
    background: #28a745;
    color: white;
    padding: 24px;
    border-radius: 8px;
    text-align: center;
    margin: 40px 0;
}

.cta-box h2 {
    color: white;
    margin: 8px 0;
}

/* Mobile styles */
@media (max-width: 768px) {
    .header {
        padding: 0 16px;
    }

    .header-title {
        font-size: 16px;
    }

    .header-title .desktop-text {
        display: none;
    }

    .header-title .mobile-text {
        display: inline;
    }

    .burger-menu {
        display: flex;
    }

    .header-nav {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        gap: 0;
        box-shadow: 0 4px 8px rgba(0,0,0,0.1);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }

    .header-nav.active {
        max-height: 400px;
    }

    .header-nav a {
        padding: 16px 24px;
        border-radius: 0;
        border-bottom: 1px solid #f0f0f0;
    }

    .content {
        margin: 80px 16px 24px;
        padding: 24px 16px;
    }

    h1 {
        font-size: 24px;
    }

    h2 {
        font-size: 20px;
    }

    h3 {
        font-size: 18px;
    }
}