/* Cards Framework */
.card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 2.25rem;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 0.75rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.degree {
    font-size: 1.1rem;
    color: var(--text-muted);
}

.highlight-detail {
    font-size: 0.95rem;
    color: var(--primary);
    margin-top: 0.5rem;
}

/* Timeline Implementation */
.timeline {
    position: relative;
    border-left: 2px solid var(--border-color);
    padding-left: 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 3.5rem;
}

.timeline-item {
    position: relative;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: calc(-2.5rem - 7px);
    top: 6px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--primary);
    border: 2px solid var(--bg-base);
}

.timeline-meta h4 {
    font-size: 1.5rem;
    font-weight: 700;
}

.timeline-meta .role {
    display: block;
    color: var(--text-muted);
    font-weight: 500;
    margin: 0.25rem 0 0.75rem 0;
}

.timeline-meta .duration {
    font-size: 0.85rem;
    color: var(--primary);
    background: rgba(56, 189, 248, 0.1);
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
}

.timeline-content {
    margin-top: 1.5rem;
}

.timeline-content ul {
    list-style-type: square;
    margin-top: 0.75rem;
    padding-left: 1.25rem;
    color: var(--text-muted);
}

.timeline-content li {
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

/* Publications Metadata styling overrides */
.pub-meta {
    font-size: 0.9rem;
    color: var(--primary);
    margin: 0.5rem 0 1rem 0;
}

.badge {
    display: inline-block;
    background: rgba(129, 140, 248, 0.15);
    color: #a5b4fc;
    font-size: 0.75rem;
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    margin-bottom: 1rem;
    font-weight: 600;
}

/* Tags & Badges */
.tags-container, .project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.tag {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 0.35rem 0.85rem;
    border-radius: 6px;
    font-size: 0.85rem;
}

.project-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100%;
}

.credential-card {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.credential-card h3 {
    margin: 0.85rem 0 0.5rem;
}

.credential-type {
    align-self: flex-start;
    color: var(--primary);
    background: var(--primary-glow);
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 700;
    padding: 0.3rem 0.7rem;
}

.credential-provider {
    color: var(--text-muted);
}

.credential-card time {
    margin-top: auto;
    padding-top: 1.5rem;
    color: var(--primary);
    font-size: 0.9rem;
    font-weight: 600;
}

.card-footer {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-top: 1.5rem;
}

.icon-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-left: 1rem;
    color: var(--primary);
    font-size: 1.2rem;
    transition: color 0.3s ease, transform 0.2s ease;
}

.icon-link:hover {
    color: #7dd3fc;
    transform: translateY(-1px);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.85rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: background 0.3s, transform 0.2s;
}

.btn-primary {
    background: var(--primary);
    color: var(--bg-base);
    border: none;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-main);
    border: 1px solid rgba(255, 255, 255, 0.08);
    margin-left: 1rem;
}

.theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 14px;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: var(--text-main);
    cursor: pointer;
    transition: background 0.3s ease, border-color 0.3s ease, transform 0.2s ease;
}

.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-1px);
}

.theme-toggle:focus-visible {
    outline: 3px solid var(--primary);
    outline-offset: 3px;
}

html[data-theme="light"] .theme-toggle {
    border-color: rgba(15, 23, 42, 0.15);
    color: var(--text-main);
}

.btn-primary:hover,
.btn-secondary:hover {
    transform: translateY(-1px);
}

.btn-primary:hover {
    background: #7dd3fc;
}

.btn-secondary:hover {
    background: rgba(56, 189, 248, 0.12);
}

.publication-link {
    margin-top: 1rem;
}

.blogs-grid .publication-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 1.75rem;
}

.blog-card-link {
    color: var(--text-main);
    text-decoration: none;
}

.blog-card-link:focus-visible {
    outline: 3px solid var(--primary);
    outline-offset: 4px;
}

.blogs-grid .card-footer {
    margin-top: auto;
    padding-top: 1.5rem;
    align-items: center;
    flex-direction: column;
}

.blogs-grid .project-tags {
    justify-content: center;
}

.blog-read-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    flex-shrink: 0;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--primary);
    font-size: 1rem;
}

@media (min-width: 701px) {
    .blogs-grid .card-footer {
        align-items: center;
        flex-direction: row;
        flex-wrap: nowrap;
        justify-content: space-between;
        gap: 0.75rem;
    }

    .blogs-grid .project-tags {
        flex-wrap: nowrap;
        gap: 0.35rem;
    }

    .blogs-grid .tag {
        padding: 0.25rem 0.6rem;
        font-size: 0.75rem;
        white-space: nowrap;
    }
}

.contact-details {
    padding: 2.5rem;
    text-align: center;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 14px;
}

.contact-details p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.contact-email {
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
    color: var(--primary);
    font-size: 1.1rem;
    font-weight: 700;
    text-decoration: none;
}

.contact-email:hover {
    text-decoration: underline;
}

:root {
    --bg-base: #0a0f1d;
    --bg-surface: #131b2e;
    --bg-card: #1c2742;
    --primary: #38bdf8;
    --primary-glow: rgba(56, 189, 248, 0.15);
    --text-main: #f1f5f9;
    --text-muted: #94a3b8;
    --border-color: #2e3d60;
}

html[data-theme="light"] {
    --bg-base: #f8fafc;
    --bg-surface: #ffffff;
    --bg-card: #f1f5f9;
    --primary: #2563eb;
    --primary-glow: rgba(37, 99, 235, 0.15);
    --text-main: #0f172a;
    --text-muted: #475569;
    --border-color: #cbd5e1;
}

html[data-theme="light"] body {
    background-color: var(--bg-base);
    color: var(--text-main);
}

html[data-theme="light"] .navbar {
    background: rgba(255, 255, 255, 0.92);
    border-color: var(--border-color);
}

html[data-theme="light"] .card,
html[data-theme="light"] .sub-block,
html[data-theme="light"] .contact-wrapper,
html[data-theme="light"] .clean-form input,
html[data-theme="light"] .clean-form textarea {
    background: var(--bg-surface);
}

html[data-theme="light"] .nav-links a {
    color: var(--text-muted);
}

html[data-theme="light"] .theme-toggle:hover {
    background: rgba(37, 99, 235, 0.08);
}

html[data-theme="light"] .btn-secondary {
    background: rgba(15, 23, 42, 0.05);
    border-color: rgba(15, 23, 42, 0.12);
}

/* Modern Label-Free Underlined Contact Elements */
.clean-form {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.clean-form input, .clean-form textarea {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 2px solid var(--border-color);
    padding: 1rem 0.5rem;
    color: var(--text-main);
    font-size: 1.05rem;
    font-family: inherit;
    outline: none;
    transition: border-color 0.3s ease;
}

.clean-form textarea {
    resize: none;
}

.clean-form input:focus, .clean-form textarea:focus {
    border-color: var(--primary);
}

@media (max-width: 700px) {
    .card {
        padding: 1.5rem;
    }

    .card-header {
        align-items: flex-start;
        flex-direction: column;
    }

    .timeline {
        padding-left: 1.5rem;
        gap: 2.5rem;
    }

    .timeline-item::before {
        left: calc(-1.5rem - 7px);
    }

    .timeline-meta h4 {
        font-size: 1.25rem;
    }

    .card-footer {
        align-items: center;
        flex-direction: column;
    }

    .card-footer .project-tags {
        justify-content: center;
    }

    .icon-link {
        margin-left: 0;
    }

    .contact-details {
        padding: 1.5rem;
    }

    .contact-email {
        font-size: 1rem;
        overflow-wrap: anywhere;
    }
}

.clean-list {
    list-style: none;
}

.clean-list li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.clean-list li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--primary);
}