/*
  Custom research-focused theme with dark/light mode
  Uses CSS variables and [data-theme] attribute toggled by JS
*/

:root {
  --bg: #ffffff;
  --text: #0f172a; /* slate-900 */
  --muted: black; /* slate-600 */
  --muted1: black; /* slate-600 */
  --primary: #2563eb; /* blue-600 */
  --primary-contrast: #ffffff;
  --card: #f8fafc; /* slate-50 */
  --chip: #e2e8f0; /* slate-200 */
  --border: #e5e7eb;
}

html[data-theme='dark'] {
  --bg: #0b1220;
  --text: #e5e7eb;
  --muted: white;
  --muted1: black;
  --primary: #60a5fa;
  --primary-contrast: #0b1220;
  --card: #0f172a;
  --chip: #1f2937;
  --border: #1f2937;
}

html, body { height: 100%; }

body {
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, 'Apple Color Emoji', 'Segoe UI Emoji';
  background: var(--bg);
  color: var(--text);
}

h1, h2, h3, h4, h5, h6 { color: var(--text); }

p, li { color: var(--muted); }

a { color: var(--primary); text-decoration: none; }

a:hover { text-decoration: underline; }

/* Sidebar overrides */
#sideNav { background: var(--primary) !important; }
#sideNav .navbar-nav .nav-link { color: var(--primary-contrast); }
#sideNav .navbar-nav .nav-link:hover { color: #f1f5f9; }
#sideNav .navbar-brand .img-profile { border: 0.35rem solid rgba(255,255,255,.3); }

/* Sections */
.resume-section { padding: 4rem 0; }
.resume-section .resume-section-content { max-width: 900px; margin: 0 auto; }

/* Chips */
.chips { display: flex; flex-wrap: wrap; gap: .5rem; }
.chip { background: var(--chip); color: var(--text); border-radius: 999px; padding: .35rem .75rem; font-size: .9rem; }

/* Publications - Grid */
/* Show all items in a single responsive grid that shrinks cards to fit */
.pub-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: .6rem; }
.pub-card { background: var(--card); border: 1px solid var(--border); border-radius: .6rem; padding: .6rem .7rem; display: grid; gap: .25rem; }
.pub-card .pub-meta { font-size: .8rem; color: var(--muted); }
.pub-card .pub-title { color: var(--text); text-decoration: none; font-size: .92rem; line-height: 1.25; }
.pub-card .pub-title:hover { text-decoration: underline; }

/* Publications - Serial list layout: Date | Title | Subject | Type */
.commit-timeline { display: block; }
.commit-item { display: grid; grid-template-columns: 140px 1fr 120px 120px; gap: .25rem 1rem; align-items: start; padding: .5rem 0; border-bottom: 1px solid var(--border); }
.commit-item:last-child { border-bottom: none; }

/* Columns */
.commit-item .commit-date { grid-column: 1; color: var(--muted); font-weight: 600; white-space: nowrap; }
.commit-item .commit-message { grid-column: 2; color: var(--text); text-decoration: none; }
.commit-item .commit-message:hover { text-decoration: underline; }
.commit-item .commit-domain { grid-column: 3; color: var(--muted1);}
.commit-item .commit-type { grid-column: 4; text-transform: capitalize; color: var(--muted1);}
.commit-item .commit-meta { display: contents; }

/* Show/Hide for filtering */
.commit-item.hidden { display: none; }

/* Compact margins so more fit on screen */
section#publications .resume-section-content { max-width: 1200px; }

/* Responsive adjustments */
@media (max-width: 992px) {
  .commit-item { grid-template-columns: 120px 1fr 110px 100px; }
}
@media (max-width: 768px) {
  .commit-item { grid-template-columns: 100px 1fr 1fr; }
  .commit-item .commit-domain { grid-column: 3; }
  .commit-item .commit-type { grid-column: 3; justify-self: end; }
}
@media (max-width: 520px) {
  .commit-item { grid-template-columns: 90px 1fr; }
  .commit-item .commit-domain { grid-column: 2; }
  .commit-item .commit-type { grid-column: 2; justify-self: start; }
}

/* On very small screens keep 2 columns if possible */
@media (max-width: 420px) { .pub-grid { grid-template-columns: repeat(2, 1fr); } }

/* Cards / Projects */
.card.project-card { background: var(--card); border: 1px solid var(--border); }
.card .card-title { color: var(--text); }
.card .card-text { color: var(--muted); }
.tags { display: flex; gap: .35rem; margin-top: .5rem; }
.tag { background: var(--chip); color: var(--text); border-radius: .4rem; padding: .2rem .5rem; font-size: .8rem; }

/* Timeline - 2 column (dates left, details right) */
.timeline { display: grid; grid-template-columns: 180px 1fr; gap: 1rem 1.25rem; align-items: start; }
.timeline-item { display: contents; }
.timeline-item .timeline-date { color: var(--muted); font-weight: 600; }
.timeline-item .timeline-content { background: var(--card); border: 1px solid var(--border); border-radius: .6rem; padding: .9rem 1rem; }

@media (max-width: 768px) {
  .timeline { grid-template-columns: 1fr; }
  .timeline-item .timeline-content { order: 2; }
}

/* Experience cards - compact and always single column to fit any screen */
.exp-list { display: grid; grid-template-columns: 1fr; gap: .8rem; }
.exp-card { background: var(--card); border: 1px solid var(--border); border-radius: .6rem; padding: .8rem .9rem; }
.exp-card .exp-header { display: grid; grid-template-columns: 1fr auto; gap: .5rem; align-items: start; }

/* Experience as timeline: date left, details right */
#experience .exp-card { display: grid; grid-template-columns: 180px 1fr; gap: 1rem; }
#experience .exp-card .exp-header { grid-column: 2; }
#experience .exp-card .exp-date { grid-column: 1; color: var(--muted); font-weight: 600; }

@media (max-width: 768px) {
  #experience .exp-card { grid-template-columns: 1fr; }
  #experience .exp-card .exp-date { order: -1; }
}

/* Contact */
.contact-form .form-label { color: var(--text); }
.contact-form .form-control, .contact-form textarea { background: var(--card); color: var(--text); border-color: var(--border); }
.contact-form .form-control:focus { border-color: var(--primary); box-shadow: 0 0 0 .2rem rgba(37,99,235,.15); }

/* Buttons */
.btn-outline-primary { color: var(--primary); border-color: var(--primary); }
.btn-outline-primary:hover { background: var(--primary); color: var(--primary-contrast); }

/* Footer */
footer a { color: var(--primary); }

/* Resume embed height a bit larger */
#resume .ratio { --bs-aspect-ratio: 65%; }

/* Utilities */
.text-primary { color: var(--primary) !important; }

/* Responsive */
@media (max-width: 991.98px) {
  #sideNav { position: sticky; top: 0; }
}