/* Classic academic style — self-contained, no external dependencies */

:root {
    --navy:        #1c3a5e;
    --navy-dk:     #0f2540;
    --blue:        #2c6ea4;
    --blue-dk:     #1d4d77;
    --gold:        #b8860b;
    --ink:         #1a1a1a;
    --muted:       #5a6470;
    --rule:        #cfd9e4;
    --rule-soft:   #e3eaf2;
    --bg:          #ffffff;
    --card:        #ffffff;
    --tint:        #eef3f9;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    background-color: var(--bg);
    color: var(--ink);
    font-family: Georgia, "Times New Roman", Times, serif;
    font-size: 17px;
    line-height: 1.65;
}

a {
    color: var(--navy);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 2px;
}

a:hover {
    color: var(--blue);
    background: rgba(44, 110, 164, 0.08);
}

a:visited {
    color: var(--navy);
}

/* Layout */
.site {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 36px;
}

/* Header */
.site-header {
    padding: 40px 0 22px;
    border-bottom: 3px double var(--navy);
    margin-bottom: 0;
    text-align: center;
}

.site-title {
    font-family: Georgia, "Times New Roman", Times, serif;
    font-size: 36px;
    font-weight: bold;
    letter-spacing: 1px;
    margin: 0;
    color: var(--navy);
}

.site-title a {
    color: inherit;
    text-decoration: none;
}

.site-title a:hover {
    color: var(--navy-dk);
    background: none;
}

.site-subtitle {
    margin: 6px 0 0;
    font-style: italic;
    color: var(--navy);
    font-size: 16px;
    letter-spacing: 0.5px;
}

/* Navigation */
.site-nav {
    border-bottom: 1px solid var(--rule);
    padding: 12px 36px;
    margin-bottom: 36px;
    background: var(--tint);
    margin-left: -36px;
    margin-right: -36px;
}

.site-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 40px;
}

.site-nav a {
    text-decoration: none;
    color: var(--navy);
    font-size: 15px;
    font-weight: bold;
    letter-spacing: 0.8px;
    text-transform: uppercase;
}

.site-nav a:hover {
    color: var(--navy);
    background: none;
}

.site-nav .current a {
    color: var(--navy);
    border-bottom: 2px solid var(--gold);
    padding-bottom: 4px;
}

/* Main content */
main {
    padding-bottom: 60px;
}

h1, h2, h3 {
    font-family: Georgia, "Times New Roman", Times, serif;
    color: var(--navy-dk);
    line-height: 1.25;
}

h1 {
    font-size: 30px;
    font-weight: bold;
    margin: 0 0 8px;
}

h2 {
    font-size: 24px;
    font-weight: bold;
    margin: 48px 0 22px;
    padding-bottom: 10px;
    color: var(--navy);
    border-bottom: 2px solid var(--navy);
    position: relative;
}

h2::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -6px;
    width: 60px;
    height: 2px;
    background: var(--gold);
}

h3 {
    font-size: 18px;
    font-weight: bold;
    margin: 24px 0 8px;
}

p {
    margin: 0 0 14px;
}

ul, ol {
    margin: 0 0 14px;
    padding-left: 26px;
}

li {
    margin-bottom: 6px;
}

li::marker {
    color: var(--navy);
}

hr {
    border: 0;
    border-top: 1px solid var(--rule);
    margin: 32px 0;
}

strong {
    color: var(--ink);
}

/* Profile section (index) */
.profile {
    display: flex;
    gap: 36px;
    align-items: flex-start;
    margin: 32px 0 16px;
    padding: 28px;
    background: var(--card);
    border: 1px solid var(--rule-soft);
    border-left: 4px solid var(--navy);
}

.profile-text {
    flex: 1 1 60%;
}

.profile-photo {
    flex: 0 0 200px;
    text-align: center;
}

.profile-photo img {
    max-width: 100%;
    height: auto;
    border: 1px solid var(--rule);
    padding: 5px;
    background: #fff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.affiliation {
    margin: 0 0 22px;
    color: var(--ink);
    line-height: 1.65;
    font-size: 16px;
}

.affiliation strong {
    color: var(--navy);
    font-weight: bold;
    font-size: 17px;
}

.research-interests {
    margin: 22px 0;
    padding: 16px 18px;
    background: var(--tint);
    border-left: 3px solid var(--gold);
}

.research-interests h2 {
    font-size: 17px;
    margin: 0 0 8px;
    padding: 0;
    border: 0;
    color: var(--navy-dk);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.research-interests h2::after {
    display: none;
}

.research-interests p {
    margin: 0;
    font-size: 16px;
}

/* Buttons (CV link) */
.button {
    display: inline-block;
    padding: 9px 22px;
    background: var(--navy);
    border: 1px solid var(--navy);
    color: #fff !important;
    text-decoration: none;
    font-size: 15px;
    font-weight: bold;
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: background 0.15s, transform 0.1s;
}

.button:hover {
    background: var(--navy-dk);
    color: #fff !important;
    transform: translateY(-1px);
}

/* Papers list */
.paper {
    margin: 0 0 32px;
    padding: 18px 22px 18px 24px;
    background: var(--card);
    border: 1px solid var(--rule-soft);
    border-left: 4px solid var(--navy);
    transition: border-color 0.15s, box-shadow 0.15s;
}

.paper:hover {
    border-left-color: var(--blue);
    box-shadow: 0 2px 8px rgba(28, 58, 94, 0.08);
}

.paper-title {
    font-size: 18px;
    margin: 0 0 6px;
    font-weight: bold;
    color: var(--navy-dk);
    line-height: 1.35;
}

.paper-title em {
    font-style: italic;
}

.paper-meta {
    font-size: 14.5px;
    color: var(--muted);
    margin: 0 0 10px;
}

.paper-meta em {
    font-style: italic;
    color: var(--blue);
    font-weight: bold;
}

.paper-meta strong {
    color: var(--navy);
}

.paper-links {
    font-size: 13.5px;
    margin: 0 0 12px;
    text-transform: uppercase;
    letter-spacing: 0.6px;
}

.paper-links a {
    display: inline-block;
    margin-right: 6px;
    margin-bottom: 4px;
    padding: 3px 10px;
    background: var(--tint);
    border: 1px solid var(--rule);
    color: var(--navy);
    text-decoration: none;
    font-weight: bold;
}

.paper-links a:hover {
    background: var(--navy);
    color: #fff;
    border-color: var(--navy);
}

.paper-abstract {
    text-align: justify;
    font-size: 15.5px;
    color: #2a2a2a;
    margin: 10px 0 0;
    padding-left: 14px;
    border-left: 2px solid var(--rule);
    line-height: 1.65;
}

/* PDF download block (seminar page) */
.file-link {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    padding: 12px 18px;
    border: 1px solid var(--rule);
    background: var(--card);
    text-decoration: none;
    color: var(--ink);
    font-size: 15px;
    margin: 8px 0 16px;
    border-left: 4px solid var(--navy);
}

.file-link:hover {
    background: var(--tint);
    color: var(--navy);
}

.file-icon {
    display: inline-block;
    background: var(--navy);
    color: #fff;
    font-size: 11px;
    font-weight: bold;
    padding: 5px 8px;
    letter-spacing: 1.2px;
    line-height: 1;
}

/* Two-column block (seminar page) */
.two-col {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 24px;
    margin: 28px 0;
    padding: 22px 24px;
    background: var(--card);
    border: 1px solid var(--rule-soft);
    border-left: 4px solid var(--navy);
}

.two-col h3 {
    margin: 0;
    font-style: italic;
    font-size: 18px;
    color: var(--blue);
    font-weight: bold;
    border-bottom: 1px solid var(--rule);
    padding-bottom: 8px;
}

.two-col-content {
    text-align: justify;
}

.two-col-content p strong,
.two-col-content > p:first-child > strong {
    display: inline-block;
    color: var(--navy);
    font-weight: bold;
}

/* Footer */
.site-footer {
    border-top: 3px double var(--navy);
    padding: 22px 0;
    color: var(--muted);
    font-size: 13px;
    text-align: center;
    letter-spacing: 0.5px;
}

/* Mobile */
@media (max-width: 640px) {
    body {
        font-size: 16px;
    }

    .site {
        padding: 0 16px;
    }

    h1 {
        font-size: 24px;
    }

    h2 {
        font-size: 20px;
    }

    .site-title {
        font-size: 28px;
    }

    .site-nav {
        margin-left: -16px;
        margin-right: -16px;
        padding-left: 16px;
        padding-right: 16px;
    }

    .site-header {
        padding: 28px 0 16px;
    }

    .site-nav ul {
        gap: 20px;
    }

    .profile {
        flex-direction: column-reverse;
        gap: 18px;
        padding: 20px;
    }

    .profile-photo {
        flex: 0 0 auto;
        max-width: 200px;
        margin: 0 auto;
    }

    .two-col {
        grid-template-columns: 1fr;
        gap: 8px;
        padding: 18px;
    }

    .paper {
        padding: 16px 16px 16px 18px;
    }

    .paper-abstract {
        padding-left: 12px;
        font-size: 15px;
    }
}