/* ==========================================================================
   Academic Minimal — Subash Timilsina
   Inspired by al-folio / classical academic websites
   ========================================================================== */

:root {
    --bg-color: #fdfaf3;
    --text-color: #1a1a1a;
    --text-light: #555;
    --text-lighter: #8a8377;
    --accent: #8b1a3a;
    --accent-hover: #a82547;
    --accent-soft: #c47230;
    --venue-color: #1d4d3a;
    --border-color: #e6dfd0;
    --hairline: #d8cfba;
    --selection-bg: #f8d8b0;
    --code-bg: #f1e9d8;
    --max-width: 960px;
}

[data-theme="dark"] {
    --bg-color: #1c1612;
    --text-color: #efe6d3;
    --text-light: #c2b9a4;
    --text-lighter: #8a8170;
    --accent: #e8a4b2;
    --accent-hover: #f3c0c9;
    --accent-soft: #d8a06a;
    --venue-color: #8fbfa3;
    --border-color: #332a22;
    --hairline: #3f352a;
    --selection-bg: #5c4720;
    --code-bg: #2c241d;
}

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

::selection {
    background: var(--selection-bg);
    color: var(--text-color);
}

html {
    font-size: 18px;
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Crimson Pro', 'Crimson Text', Georgia, 'Times New Roman', serif;
    font-size: 23px;
    line-height: 1.65;
    color: var(--text-color);
    background-color: var(--bg-color);
    transition: background-color 0.25s ease, color 0.25s ease;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.25;
    color: var(--text-color);
    letter-spacing: -0.01em;
}

h1 { font-size: 2.8rem; margin-bottom: 0.4rem; }
h2 { font-size: 1.8rem; margin-bottom: 1.2rem; font-weight: 600; }
h3 { font-size: 1.3rem; margin-bottom: 0.4rem; font-weight: 600; }

p {
    margin-bottom: 1rem;
}

a {
    color: var(--accent);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: color 0.15s ease, border-color 0.15s ease;
}

a:hover {
    color: var(--accent-hover);
    border-bottom-color: var(--accent-hover);
}

em { font-style: italic; }
strong { font-weight: 600; }

code {
    font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 0.85em;
    background: var(--code-bg);
    padding: 0.1rem 0.35rem;
    border-radius: 3px;
}

/* ==========================================================================
   Navigation — slim, minimal, top of page
   ========================================================================== */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg-color);
    border-bottom: 1px solid var(--hairline);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 14px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.nav-brand {
    font-family: 'Crimson Pro', Georgia, serif;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-color);
    border: none;
    letter-spacing: 0.005em;
}

.nav-brand:hover {
    color: var(--accent);
    border: none;
}

.nav-menu {
    list-style: none;
    display: flex;
    gap: 1.6rem;
    margin: 0;
    align-items: center;
}

.nav-link {
    font-size: 1.05rem;
    color: var(--text-light);
    border: none;
    font-family: 'Crimson Pro', Georgia, serif;
    font-weight: 500;
}

.nav-link:hover {
    color: var(--text-color);
    border: none;
}

.theme-toggle {
    background: none;
    border: 1px solid var(--hairline);
    border-radius: 4px;
    width: 34px;
    height: 34px;
    cursor: pointer;
    color: var(--text-light);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    font-size: 0.85rem;
}

.theme-toggle:hover {
    color: var(--text-color);
    border-color: var(--text-light);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger .bar {
    width: 22px;
    height: 1.5px;
    background-color: var(--text-color);
}

/* ==========================================================================
   Section headings (small caps style)
   ========================================================================== */
section {
    padding: 56px 0 32px;
}

.section-title {
    font-size: 0.95rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    color: var(--accent);
    margin-bottom: 1.8rem;
    padding-bottom: 0.7rem;
    border-bottom: 2px solid var(--accent);
    display: inline-block;
}

/* ==========================================================================
   About / Profile
   ========================================================================== */
.profile-timeline {
    padding-top: 64px;
}

.profile-header {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 2rem;
    align-items: start;
    margin-bottom: 2.5rem;
}

.profile-info {
    order: 1;
}

.profile-image-container {
    order: 2;
}

.profile-image {
    width: 200px;
    height: 250px;
    object-fit: cover;
    object-position: center top;
    border: 1px solid var(--hairline);
    border-radius: 2px;
    box-shadow: 4px 4px 0 var(--accent);
}

.profile-name {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

.profile-tagline {
    font-size: 1.2rem;
    color: var(--text-color);
    margin-bottom: 0.3rem;
}

.profile-description {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 1rem;
}

.social-links {
    display: flex;
    gap: 1.1rem;
    align-items: center;
    margin-top: 0.6rem;
}

.social-link {
    color: var(--text-light);
    border: none;
    font-size: 1.65rem;
    transition: color 0.15s ease, transform 0.15s ease;
}

.social-link:hover {
    color: var(--accent);
    transform: translateY(-2px);
    border: none;
}

.social-link:hover {
    color: var(--accent);
    border: none;
}

/* Bio paragraphs */
.bio {
    margin-bottom: 3rem;
    color: var(--text-color);
}

.bio p {
    margin-bottom: 1.1rem;
    line-height: 1.75;
    font-size: 1.08rem;
}

.bio em {
    color: var(--accent);
    font-style: italic;
}

/* ==========================================================================
   Timeline — one-sided with vertical line on the left
   ========================================================================== */
.timeline-list {
    list-style: none;
    margin: 0;
    padding: 1.5rem 0 0.5rem;
    position: relative;
}

/* Vertical line on the left */
.timeline-list::before {
    content: '';
    position: absolute;
    left: 28px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--hairline);
}

.timeline-entry {
    position: relative;
    padding: 0.6rem 0 2rem 5rem;
    box-sizing: border-box;
}

.timeline-entry:last-child {
    padding-bottom: 0.5rem;
}

/* Marker = circular dot sitting on the line */
.timeline-marker {
    position: absolute;
    left: 0;
    top: 0.5rem;
    width: 56px;
    height: 56px;
    border: 2px solid var(--accent);
    border-radius: 50%;
    background: var(--bg-color);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    z-index: 1;
    box-shadow: 0 0 0 4px var(--bg-color);
    transition: transform 0.2s ease;
}

.timeline-entry:hover .timeline-marker {
    transform: scale(1.05);
}

.timeline-logo {
    width: 70%;
    height: 70%;
    object-fit: contain;
}

.timeline-icon {
    font-size: 1.5rem;
    color: var(--accent);
    line-height: 1;
}

.timeline-year {
    display: block;
    font-size: 1rem;
    color: var(--accent);
    font-variant-numeric: tabular-nums;
    font-style: italic;
    font-weight: 700;
    margin-bottom: 0.4rem;
    letter-spacing: 0.02em;
}

.timeline-content p {
    font-size: 1.02rem;
    line-height: 1.65;
    margin: 0;
    color: var(--text-color);
}

/* ==========================================================================
   Publications — al-folio-style flat list, image left
   ========================================================================== */
.publications {
    display: flex;
    flex-direction: column;
}

.publication-card {
    display: grid;
    grid-template-columns: 310px 1fr;
    gap: 2rem;
    padding: 2rem 0;
    border-bottom: 1px solid var(--hairline);
    align-items: start;
}

.publication-card:first-child { padding-top: 0.4rem; }
.publication-card:last-child { border-bottom: none; }

.publication-image {
    background: var(--code-bg);
    border: 1px solid var(--hairline);
    border-radius: 2px;
    overflow: hidden;
    aspect-ratio: 16 / 11;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.35rem;
}

.publication-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform 0.3s ease;
}

.publication-image:hover img {
    transform: scale(1.04);
}

.publication-content {
    padding: 0.3rem 0 0;
}

.publication-content-full {
    grid-column: 1 / -1;
}

.publication-card:has(.publication-content-full) {
    grid-template-columns: 1fr;
}

.publication-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
    line-height: 1.3;
    color: var(--text-color);
}

.publication-authors {
    font-size: 1rem;
    color: var(--text-color);
    margin-bottom: 0.2rem;
}

.publication-authors strong {
    color: var(--accent);
    font-weight: 700;
}

.publication-venue {
    font-size: 0.95rem;
    color: var(--accent-soft);
    font-style: italic;
    font-weight: 600;
    margin-bottom: 0.6rem;
}

.publication-description {
    font-size: 0.98rem;
    color: var(--text-color);
    line-height: 1.5;
    margin-bottom: 0.8rem;
}

.publication-links {
    display: flex;
    gap: 0.6rem;
    flex-wrap: wrap;
}

.pub-link {
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 0.3rem 0.75rem;
    border: 1.5px solid var(--accent);
    color: var(--accent);
    border-radius: 2px;
    background: transparent;
    font-family: 'Crimson Pro', Georgia, serif;
    font-weight: 600;
    transition: all 0.15s ease;
}

.pub-link:hover {
    background: var(--accent);
    color: var(--bg-color);
    border-color: var(--accent);
}

/* ==========================================================================
   Projects — multi-column grid, vertical card layout
   ========================================================================== */
.project-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    padding-top: 0.5rem;
}

.project-card {
    display: flex;
    flex-direction: column;
    border: 1px solid var(--hairline);
    border-radius: 2px;
    background: var(--bg-color);
    overflow: hidden;
    color: inherit;
    text-decoration: none;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.project-card:hover {
    transform: translateY(-3px);
    border-color: var(--accent);
    box-shadow: 4px 4px 0 var(--accent);
    color: inherit;
    border-bottom: 1px solid var(--accent);
}

.project-card:hover .project-title {
    color: var(--accent);
}

.project-image {
    background: var(--code-bg);
    overflow: hidden;
    aspect-ratio: 1.6 / 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid var(--hairline);
    padding: 0.6rem;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform 0.3s ease;
}

.project-card:hover .project-image img {
    transform: scale(1.04);
}

.project-content {
    padding: 1.2rem 1.4rem 1.4rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.project-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 0.45rem;
    line-height: 1.3;
}

.project-description {
    font-size: 0.98rem;
    color: var(--text-light);
    line-height: 1.55;
    margin-bottom: 0.9rem;
    flex: 1;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 0.7rem;
}

.project-tag {
    font-size: 0.78rem;
    padding: 0.18rem 0.6rem;
    color: var(--accent-soft);
    border: 1px solid var(--accent-soft);
    border-radius: 2px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 600;
    background: transparent;
}

.project-links {
    display: flex;
    gap: 0.6rem;
    flex-wrap: wrap;
}

/* ==========================================================================
   Blogs — simple chronological list
   ========================================================================== */
.blog-grid {
    display: flex;
    flex-direction: column;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    padding-top: 0.5rem;
}

.blog-card {
    display: flex;
    flex-direction: column;
    border: 1px solid var(--hairline);
    border-radius: 2px;
    background: var(--bg-color);
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.blog-card:hover {
    transform: translateY(-3px);
    border-color: var(--accent);
    box-shadow: 4px 4px 0 var(--accent);
}

.blog-image {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--code-bg);
    overflow: hidden;
    aspect-ratio: 1.6 / 1;
    border-bottom: 1px solid var(--hairline);
    border-radius: 0;
    border: none;
    padding: 0.6rem;
}

.blog-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform 0.3s ease;
    display: block;
}

.blog-card:hover .blog-image img {
    transform: scale(1.04);
}

.blog-content {
    padding: 1.2rem 1.4rem 1.4rem;
}

.blog-date {
    font-size: 0.95rem;
    color: var(--accent);
    font-style: italic;
    font-variant-numeric: tabular-nums;
    font-weight: 500;
}

.blog-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin: 0 0 0.3rem;
    line-height: 1.3;
}

.blog-title a {
    color: var(--text-color);
    border-bottom: 1px solid transparent;
}

.blog-title a:hover {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.blog-description {
    font-size: 1rem;
    color: var(--text-light);
    line-height: 1.6;
    margin: 0;
}

.blog-empty {
    padding: 2rem 0;
    color: var(--text-light);
    font-style: italic;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    margin-top: 4rem;
    padding: 2rem 0 3rem;
    border-top: 1px solid var(--hairline);
    text-align: center;
}

.footer p {
    font-size: 0.85rem;
    color: var(--text-lighter);
    margin: 0;
    font-style: italic;
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 720px) {
    html { font-size: 17px; }
    body { font-size: 21px; }

    .profile-header {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .profile-image-container { order: -1; }

    .profile-image {
        width: 170px;
        height: 210px;
    }

    .profile-name { font-size: 2.2rem; }

    /* Smaller timeline markers on mobile */
    .timeline-list::before {
        left: 22px;
    }

    .timeline-entry {
        padding: 0.5rem 0 1.6rem 4rem;
    }

    .timeline-marker {
        width: 46px;
        height: 46px;
    }

    .publication-card {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .publication-image {
        max-width: 100%;
        aspect-ratio: 16 / 9;
    }

    .project-grid,
    .blog-grid {
        grid-template-columns: 1fr;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 56px;
        flex-direction: column;
        background: var(--bg-color);
        width: 100%;
        text-align: center;
        gap: 0.6rem;
        padding: 1.5rem 0;
        border-bottom: 1px solid var(--hairline);
        transition: left 0.3s ease;
    }

    .nav-menu.active { left: 0; }

    .hamburger { display: flex; }

    .hamburger.active .bar:nth-child(1) {
        transform: translateY(5.5px) rotate(45deg);
    }
    .hamburger.active .bar:nth-child(2) { opacity: 0; }
    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-5.5px) rotate(-45deg);
    }
}