html,
body {
    margin: 0;
    padding: 0;
    min-height: 100%;
    font-family: "Segoe UI", Arial, sans-serif;
    background: #f4f6f9;
    color: #333;
}

* {
    box-sizing: border-box;
}

a {
    color: #0070c0;
    text-decoration: underline;
}

a:hover,
a:focus {
    color: #004578;
    text-decoration: none;
}

/* Layout */

#wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */

#header {
    background: linear-gradient(135deg, #005ea5, #004578);
    min-height: 90px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 30px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.15);
}

#header h1 {
    margin: 0;
    color: #ffffff;
    font-size: 2rem;
    font-weight: 600;
}

.header-logo {
    height: 80px;
    width: auto;
}

/* Content */

#content {
    flex: 1;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 20px;
}

#content_top {
    margin-bottom: 24px;
}

#content_top h2 {
    color: #004578;
    margin-bottom: 15px;
}

#content_top p {
    line-height: 1.7;
}

.copyright {
    text-align: center;
    margin-top: 20px;
}

/* Cards */

#content_left,
#content_right {
    background: #ffffff;
    border: 1px solid #d9e2ec;
    border-radius: 16px;
    box-shadow: 0 4px 18px rgba(0,0,0,0.08);
    padding: 25px;
    min-height: 220px;
    width: 48%;
}

#content_left {
    float: left;
}

#content_right {
    float: right;
}

#content_left h2,
#content_right h2 {
    margin-top: 0;
    color: #004578;
}

/* Buttons */

.btn {
    display: inline-block;
    margin-top: 12px;
    background: #005ea5;
    color: #fff;
    padding: 12px 20px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: background .2s ease;
}

.btn:hover {
    background: #004578;
    text-decoration: none;
}

/* Support Section */

#content_bottom {
    clear: both;
    text-align: center;
    padding: 40px 20px;
}

/* Footer */

#footer {
    text-align: center;
    background: white;
    border-top: 1px solid #d9e2ec;
    padding: 12px;
}

#footer img {
    height: 54px;
    width: auto;
}

/* Responsive */

@media (max-width: 768px) {

    #header {
        flex-direction: column;
        padding: 15px;
        text-align: center;
    }

    .header-logo {
        margin-top: 10px;
        height: 60px;
    }

    #content_left,
    #content_right {
        width: 100%;
        float: none;
        margin-bottom: 20px;
    }

    #header h1 {
        font-size: 1.7rem;
    }
}