/* style.css */
body {
    font-family: 'Segoe UI', Arial, Helvetica, sans-serif;
    background: #f6f6f7;
    margin: 0;
    color: #223056;
}

header .header-bg {
    background: linear-gradient(135deg, #25408B 0%, #46BCE9 100%);
    height: 180px;
    position: relative;
}

.header-overlay {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: flex-end;
    justify-content: flex-start;
    padding: 0 60px 18px 60px;
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
}

.logo-section {
    background: rgba(255,255,255,0.90);
    padding: 18px 35px 14px 25px;
    border-radius: 16px 16px 0 0;
    box-shadow: 0 6px 28px rgba(0,0,0,0.09);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.logo {
    font-size: 2.5rem;
    font-weight: bold;
    color: #25408B;
    letter-spacing: 2px;
}

.logo-img {
    height: 56px;
    width: auto;
    margin-bottom: 8px;
    display: block;
}

header nav {
    background: #433b67;
    display: flex;
    padding: 0 60px;
    height: 48px;
    align-items: center;
    box-shadow: 0 2px 16px rgba(70, 188, 233, 0.05);
}

header nav a {
    color: #fff;
    text-decoration: none;
    margin-right: 35px;
    font-size: 1.07rem;
    font-weight: 500;
    transition: color 0.2s;
}

header nav a:hover {
    color: #FFD200;
}

header .header-bg {
    width: 100vw;
    min-width: 100%;
    left: 0;
    top: 0;
    background: url('banner-cttc.png') center center / cover no-repeat;
    height: 180px;
    position: relative;
    margin: 0;
}

main {
    max-width: 990px;
    margin: 48px auto;
    padding: 20px;
}

h1 {
    font-size: 2.2rem;
    color: #25408B;
    margin-bottom: 32px;
    font-weight: 500;
    letter-spacing: 1px;
}

.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
    gap: 34px;
}

.link-card {
    background: #fff;
    border: 2px solid #e6eaf3;
    border-radius: 16px;
    padding: 30px 24px;
    box-shadow: 0 2px 18px rgba(67, 59, 103, 1);
    text-decoration: none;
    color: #2c3445;
    transition: box-shadow 0.2s, border-color 0.2s;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.link-card:hover {
/*    box-shadow: 0 8px 36px rgba(39, 66, 139, 0.22); */ 
    box-shadow: 0 2px 18px #433b67;
    border-color: #46BCE9;
}

.link-title {
    font-size: 1.18rem;
    font-weight: bold;
    color: #25408B;
    margin-bottom: 8px;
}

.link-desc {
    color: #594e42;
    font-size: 0.97rem;
}

footer {
    background: #433b67;
    color: #fff;
    text-align: center;
    padding: 16px 0;
    font-size: 0.97rem;
    letter-spacing: 1px;
    margin-top: 60px;
}