/* ==========================================================================
   al-folio inspired stylesheet for Saurabh Kaushik
   ========================================================================== */

:root {
  --global-bg-color: #ffffff;
  --global-code-bg-color: rgba(0, 0, 0, 0.05);
  --global-text-color: #000000;
  --global-text-color-light: #828282;
  --global-theme-color: #b509ac;
  --global-hover-color: #b509ac;
  --global-hover-text-color: #ffffff;
  --global-footer-bg-color: #1c1c1d;
  --global-footer-text-color: #e8e8e8;
  --global-footer-link-color: #ffffff;
  --global-distinctive-color: #b509ac;
  --global-divider-color: rgba(0, 0, 0, 0.1);
  --global-card-bg-color: #ffffff;
  --global-highlight-color: #e74d3c;
  --global-back-to-top-bg-color: rgba(0, 0, 0, 0.4);
  --global-back-to-top-text-color: #ffffff;
  --global-newsletter-bg-color: #ffffff;
  --global-newsletter-text-color: #000000;
  --global-tip-block: #42b983;
  --global-tip-block-bg: #e2f5ec;
  --global-tip-block-text: #215d42;
  --global-tip-block-title: #359469;
  --global-warning-block: #ff8d1a;
  --global-warning-block-bg: #ffe5d0;
  --global-warning-block-text: #804f1c;
  --global-warning-block-title: #c25a0e;
  --global-danger-block: #c0341d;
  --global-danger-block-bg: #ffe0db;
  --global-danger-block-text: #5b1a11;
  --global-danger-block-title: #a52511;
}

html[data-theme='dark'] {
  --global-bg-color: #1c1c1d;
  --global-code-bg-color: #2c3034;
  --global-text-color: #e8e8e8;
  --global-text-color-light: #b3b3b3;
  --global-theme-color: #ce8cce;
  --global-hover-color: #ce8cce;
  --global-hover-text-color: #1c1c1d;
  --global-footer-bg-color: #e8e8e8;
  --global-footer-text-color: #1c1c1d;
  --global-footer-link-color: #000000;
  --global-distinctive-color: #ce8cce;
  --global-divider-color: rgba(255, 255, 255, 0.1);
  --global-card-bg-color: #2c3034;
  --global-back-to-top-bg-color: rgba(255, 255, 255, 0.5);
  --global-back-to-top-text-color: #1c1c1d;
  --global-newsletter-bg-color: #2c3034;
  --global-newsletter-text-color: #e8e8e8;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Roboto Slab', serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--global-text-color);
  background-color: var(--global-bg-color);
  margin: 0;
  padding: 0;
  padding-top: 56px;
  transition: color 0.2s ease, background-color 0.2s ease;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--global-theme-color);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--global-hover-color);
  text-decoration: underline;
}

p { margin: 0 0 1rem; }

h1, h2, h3, h4, h5, h6 {
  font-family: 'Roboto Slab', serif;
  font-weight: 500;
  margin-top: 1.5rem;
  margin-bottom: 1rem;
  line-height: 1.2;
  color: var(--global-text-color);
}

h1 { font-size: 2.5rem; font-weight: 300; }
h2 { font-size: 1.75rem; font-weight: 400; }
h3 { font-size: 1.4rem; font-weight: 400; }
h4 { font-size: 1.2rem; font-weight: 500; }

hr {
  border: 0;
  border-top: 1px solid var(--global-divider-color);
  margin: 2rem 0;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

code {
  background-color: var(--global-code-bg-color);
  padding: 0.15rem 0.35rem;
  border-radius: 3px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.9em;
}

/* ===== Navbar ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--global-divider-color);
  padding: 0.5rem 0;
  transition: background-color 0.2s ease;
}

html[data-theme='dark'] .navbar {
  background-color: rgba(28, 28, 29, 0.95);
}

.navbar-container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.navbar-brand {
  font-family: 'Roboto Slab', serif;
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--global-text-color) !important;
  text-decoration: none;
}

.navbar-brand:hover {
  text-decoration: none;
  color: var(--global-theme-color) !important;
}

.navbar-nav {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
  align-items: center;
}

.navbar-nav a {
  color: var(--global-text-color);
  font-size: 0.95rem;
  font-weight: 400;
  position: relative;
  padding: 0.25rem 0;
}

.navbar-nav a:hover {
  color: var(--global-theme-color);
  text-decoration: none;
}

.navbar-nav a.active {
  color: var(--global-theme-color);
  font-weight: 500;
}

.navbar-nav a.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--global-theme-color);
}

.theme-toggle {
  background: none;
  border: none;
  color: var(--global-text-color);
  font-size: 1rem;
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  transition: background-color 0.2s ease;
}

.theme-toggle:hover {
  background-color: var(--global-divider-color);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--global-text-color);
  font-size: 1.5rem;
  cursor: pointer;
}

/* ===== Container ===== */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  flex: 1;
  width: 100%;
}

/* ===== About / Profile ===== */
.profile {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 3rem;
  align-items: start;
  margin-bottom: 2rem;
}

.profile-text h1 {
  font-size: 3rem;
  font-weight: 300;
  margin-top: 0;
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.profile-subtitle {
  color: var(--global-text-color-light);
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
  font-style: italic;
}

.profile-subtitle a {
  color: var(--global-text-color-light);
  text-decoration: underline;
  text-decoration-color: var(--global-divider-color);
  text-underline-offset: 3px;
}

.profile-subtitle a:hover {
  color: var(--global-theme-color);
}

.profile-bio {
  color: var(--global-text-color);
  font-size: 1rem;
  line-height: 1.8;
}

.profile-image {
  text-align: center;
}

.profile-image img {
  width: 100%;
  max-width: 280px;
  border-radius: 50%;
  border: 1px solid var(--global-divider-color);
  margin: 0 auto;
}

.profile-address {
  text-align: center;
  margin-top: 1rem;
  font-size: 0.9rem;
  color: var(--global-text-color-light);
  line-height: 1.5;
}

.profile-address strong {
  color: var(--global-text-color);
  font-weight: 500;
}

/* ===== Social Icons ===== */
.social {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 1.5rem;
  flex-wrap: wrap;
}

.social a {
  color: var(--global-text-color);
  font-size: 1.4rem;
  transition: color 0.2s ease, transform 0.2s ease;
}

.social a:hover {
  color: var(--global-theme-color);
  transform: translateY(-2px);
}

/* ===== Section Headings ===== */
.section-heading {
  font-family: 'Roboto Slab', serif;
  font-size: 1.75rem;
  font-weight: 400;
  margin-top: 3rem;
  margin-bottom: 1.5rem;
  color: var(--global-text-color);
}

.section-heading a {
  color: inherit;
  text-decoration: none;
}

.section-heading a:hover {
  color: var(--global-theme-color);
  text-decoration: none;
}

/* ===== News Table ===== */
.news-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.news-table tr {
  border-bottom: 1px solid var(--global-divider-color);
}

.news-table tr:first-child {
  border-top: 1px solid var(--global-divider-color);
}

.news-table td {
  padding: 0.75rem 1rem;
  vertical-align: top;
}

.news-table td:first-child {
  white-space: nowrap;
  color: var(--global-text-color-light);
  font-weight: 500;
  width: 130px;
  font-size: 0.9rem;
}

.news-table tr:hover {
  background-color: var(--global-code-bg-color);
}

/* ===== Publications ===== */
.publications-list {
  list-style: none;
  padding: 0;
  margin: 0;
  counter-reset: pubs;
}

.pub-item {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 1.5rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--global-divider-color);
  counter-increment: pubs;
  position: relative;
}

.pub-item:last-child { border-bottom: none; }

.pub-preview {
  width: 100px;
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--global-code-bg-color);
  border-radius: 6px;
  overflow: hidden;
  font-size: 0.75rem;
  color: var(--global-text-color-light);
  text-align: center;
  font-weight: 500;
  padding: 0.5rem;
}

.pub-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.pub-content { min-width: 0; }

.pub-venue {
  display: inline-block;
  background: linear-gradient(45deg, var(--global-theme-color), #d24bcf);
  color: white;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.15rem 0.5rem;
  border-radius: 3px;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
}

.pub-title {
  font-size: 1.05rem;
  font-weight: 500;
  margin: 0.25rem 0;
  line-height: 1.4;
  color: var(--global-text-color);
}

.pub-title a {
  color: var(--global-text-color);
}

.pub-title a:hover {
  color: var(--global-theme-color);
  text-decoration: none;
}

.pub-authors {
  font-size: 0.95rem;
  margin: 0.25rem 0;
  color: var(--global-text-color);
}

.pub-authors em {
  font-style: italic;
  font-weight: 600;
}

.pub-journal {
  font-size: 0.9rem;
  font-style: italic;
  color: var(--global-text-color-light);
  margin: 0.25rem 0;
}

.pub-links {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
}

.pub-link {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.2rem 0.55rem;
  border: 1px solid var(--global-theme-color);
  color: var(--global-theme-color);
  border-radius: 3px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  transition: all 0.2s ease;
}

.pub-link:hover {
  background-color: var(--global-theme-color);
  color: white;
  text-decoration: none;
}

/* ===== Projects Grid ===== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.project-card {
  background-color: var(--global-card-bg-color);
  border: 1px solid var(--global-divider-color);
  border-radius: 8px;
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
}

.project-thumb {
  width: 100%;
  height: 160px;
  background: linear-gradient(135deg, #f0e6f5, #e8d5e8);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--global-theme-color);
  font-size: 2.5rem;
}

html[data-theme='dark'] .project-thumb {
  background: linear-gradient(135deg, #3a2e3f, #44324a);
}

.project-body {
  padding: 1rem 1.25rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.project-title {
  font-size: 1.05rem;
  font-weight: 500;
  margin: 0 0 0.5rem;
  color: var(--global-text-color);
}

.project-desc {
  font-size: 0.9rem;
  color: var(--global-text-color-light);
  margin: 0;
  flex: 1;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  margin-top: 0.75rem;
}

.project-tag {
  font-size: 0.7rem;
  background-color: var(--global-code-bg-color);
  color: var(--global-text-color-light);
  padding: 0.15rem 0.4rem;
  border-radius: 3px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

/* ===== CV-style sections ===== */
.cv-entry {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 1.5rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--global-divider-color);
}

.cv-entry:last-child { border-bottom: none; }

.cv-date {
  color: var(--global-text-color-light);
  font-size: 0.9rem;
  font-weight: 500;
}

.cv-title {
  font-size: 1.05rem;
  font-weight: 500;
  margin: 0 0 0.25rem;
  color: var(--global-text-color);
}

.cv-org {
  font-size: 0.95rem;
  color: var(--global-text-color-light);
  margin: 0 0 0.5rem;
  font-style: italic;
}

.cv-desc {
  font-size: 0.95rem;
  color: var(--global-text-color);
  margin: 0;
}

/* ===== Footer ===== */
.footer {
  background-color: var(--global-footer-bg-color);
  color: var(--global-footer-text-color);
  padding: 1.5rem 1.5rem;
  text-align: center;
  font-size: 0.85rem;
  margin-top: 4rem;
}

.footer a {
  color: var(--global-footer-link-color);
  text-decoration: underline;
}

.footer p { margin: 0.25rem 0; }

/* ===== Mobile ===== */
@media (max-width: 768px) {
  .profile {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  .profile-text { order: 2; }
  .profile-image { order: 1; }
  .profile-image img { max-width: 220px; }
  .profile-text h1 { font-size: 2.25rem; }

  .menu-toggle { display: block; }

  .navbar-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--global-bg-color);
    flex-direction: column;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--global-divider-color);
    gap: 0.5rem;
  }

  .navbar-nav.open { display: flex; }

  .pub-item, .cv-entry {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .pub-preview {
    width: 100%;
    max-width: 200px;
    height: 120px;
  }
}

/* ===== Utility ===== */
.text-muted { color: var(--global-text-color-light); }
.text-center { text-align: center; }
.mb-0 { margin-bottom: 0; }
.mt-0 { margin-top: 0; }