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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: linear-gradient(180deg, #f0f6ff 0%, #ffffff 60%);
    color: #1e293b;
    line-height: 1.6;
}

/* NAVBAR */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 3rem;
}

.logo {
    font-weight: 500;
    font-size: 1.1rem;
    letter-spacing: 0.5px;
}

nav a {
    text-decoration: none;
    color: #334155;
    margin-left: 2rem;
    font-size: 0.95rem;
}

nav a:hover {
    color: #2563eb;
}

/* LAYOUT */
.container {
    max-width: 760px;
    margin: 4rem auto;
    padding: 0 2rem;
}

/* INTRO */
.intro h1 {
    font-size: 2.5rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

.intro p {
    font-size: 1.1rem;
    color: #475569;
    margin-bottom: 4rem;
}

/* LINK CARDS */
.links {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.link-card {
    padding-bottom: 3rem;
    border-bottom: 1px solid #e2e8f0;
}

.link-card h2 {
    font-size: 1.2rem;
    margin-bottom: 0.4rem;
}

.link-card p {
    color: #64748b;
    margin-bottom: 0.6rem;
}

.link-card a {
    text-decoration: none;
    color: #2563eb;
    font-weight: 500;
}

.link-card a:hover {
    text-decoration: underline;
}

/* PDF PREVIEW */
.pdf-preview {
    margin: 1.5rem 0;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    overflow: hidden;
}

.pdf-preview iframe {
    width: 80%;
    height: 400px;
    border: none;
}

/* FOOTER */
footer {
    text-align: center;
    margin: 6rem 0 3rem;
    font-size: 0.85rem;
    color: #94a3b8;
}