:root {
  --bg: #f7f6f2;
  --paper: rgba(255, 255, 255, 0.84);
  --paper-strong: rgba(255, 255, 255, 0.94);
  --ink: #171d26;
  --ink-soft: #505964;
  --muted: #747d89;
  --line: rgba(23, 29, 38, 0.12);
  --line-strong: rgba(23, 29, 38, 0.22);
  --accent: #27384c;
  --accent-soft: rgba(39, 56, 76, 0.06);
  --crimson: #a51c30;
  --crimson-deep: #7f1425;
  --crimson-soft: rgba(165, 28, 48, 0.065);
  --container: 1080px;
  --radius: 10px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background:
    radial-gradient(1100px 460px at 82% -12%, rgba(165, 28, 48, 0.045), transparent 62%),
    radial-gradient(900px 420px at -8% -6%, rgba(39, 56, 76, 0.05), transparent 58%),
    linear-gradient(rgba(23, 29, 38, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 29, 38, 0.015) 1px, transparent 1px),
    var(--bg);
  background-size: auto, auto, 36px 36px, 36px 36px, auto;
  background-attachment: fixed;
  font: 14px/1.62 Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

img {
  max-width: 100%;
}

::selection {
  background: rgba(165, 28, 48, 0.16);
}

.container {
  width: min(calc(100% - 2rem), var(--container));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-top: 3px solid var(--crimson);
  background: rgba(247, 246, 242, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 3.55rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: inherit;
  text-decoration: none;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  flex: 0 0 1.75rem;
}

.brand-mark-image {
  display: block;
  width: 100%;
  height: 100%;
  image-rendering: pixelated;
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 0.02rem;
}

.brand-text strong {
  font-size: 0.88rem;
  letter-spacing: 0.01em;
}

.brand-text span {
  color: var(--muted);
  font-size: 0.76rem;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.1rem;
}

.site-nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.81rem;
  padding: 0.36rem 0.5rem;
  border-radius: 7px;
}

.site-nav a:hover {
  background: rgba(255, 255, 255, 0.75);
  color: var(--crimson-deep);
}

.section {
  padding: 2.4rem 0 0;
}

.section-first {
  padding-top: 1.35rem;
}

.section-heading {
  margin-bottom: 0.85rem;
}

.section-heading h1 {
  position: relative;
  display: inline-block;
  margin-bottom: 0;
  padding-bottom: 0.42rem;
}

.section-heading h1::after {
  content: "";
  position: absolute;
  left: 0.06rem;
  bottom: 0;
  width: 2.1rem;
  height: 3px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--crimson), rgba(165, 28, 48, 0.25));
}

.course-head h1 {
  color: var(--crimson-deep);
}

.meta-label,
.assignment-kind,
.lecture-table thead th {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.assignment-kind,
.meta-label {
  color: var(--crimson);
  font-size: 0.68rem;
}

h1,
h2,
h3 {
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Palatino, "Times New Roman", serif;
}

h1,
h2,
h3,
p,
ul,
dl {
  margin-top: 0;
}

h1 {
  margin-bottom: 0.35rem;
  font-size: clamp(1.3rem, 2vw, 1.7rem);
  line-height: 1.1;
  font-weight: 600;
  letter-spacing: -0.018em;
}

h2 {
  margin-bottom: 0.18rem;
  font-size: clamp(0.96rem, 1.35vw, 1.08rem);
  line-height: 1.12;
  font-weight: 600;
}

h3 {
  margin-bottom: 0.38rem;
  font-size: 0.92rem;
  line-height: 1.2;
  font-weight: 600;
}

.section-note,
.course-kicker,
.course-summary,
.course-main p,
.assignment-content p,
.material-column li,
.footer-inner p,
.plain-list li,
.meta-value {
  color: var(--ink-soft);
}

.course-panel,
.panel {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow:
    0 1px 2px rgba(23, 29, 38, 0.04),
    0 14px 34px -22px rgba(23, 29, 38, 0.22);
}

.course-panel {
  padding: 1rem 1.05rem 1.1rem;
}

.course-head {
  max-width: 52rem;
  padding-bottom: 0.9rem;
  border-bottom: 1px solid var(--line);
}

.course-kicker {
  margin-bottom: 0.45rem;
  font-size: 0.84rem;
}

.course-summary {
  max-width: 64ch;
  margin-bottom: 0;
  font-size: 0.94rem;
}

.course-meta-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.7rem;
  padding-top: 0.9rem;
}

.meta-card {
  min-height: 4.5rem;
  padding: 0.72rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--paper-strong);
}

.meta-label {
  margin-bottom: 0.24rem;
}

.meta-value {
  margin-bottom: 0;
  font-size: 0.94rem;
  line-height: 1.42;
}

.course-body-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.95fr);
  gap: 0.9rem;
  padding-top: 0.9rem;
}

.course-main {
  padding: 0.1rem 0.1rem 0 0;
}

.course-side {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

.mini-panel {
  padding: 0.8rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--paper-strong);
}

.mini-panel h3,
.material-column h3 {
  padding-bottom: 0.3rem;
  border-bottom: 1px solid var(--line);
}

.plain-list {
  margin-bottom: 0;
  padding-left: 1rem;
}

.compact-list li + li {
  margin-top: 0.32rem;
}

.links-list a,
a {
  color: var(--crimson);
  text-decoration-color: rgba(165, 28, 48, 0.3);
  text-underline-offset: 0.16em;
}

.links-list a:hover,
a:hover {
  color: var(--crimson-deep);
  text-decoration-color: rgba(127, 20, 37, 0.55);
}

.table-panel {
  padding: 0.18rem 0;
}

.table-wrap {
  width: 100%;
  overflow-x: auto;
}

.lecture-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
}

.lecture-table th,
.lecture-table td {
  padding: 0.72rem 0.9rem;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.lecture-table thead th {
  color: var(--muted);
  font-size: 0.67rem;
  font-weight: 500;
}

.lecture-table tbody tr:last-child td {
  border-bottom: 0;
}

.lecture-table tbody tr:not(.break-row):hover td {
  background: var(--crimson-soft);
}

.assignment-row:not(.upcoming-note-row):hover {
  background: var(--crimson-soft);
}

.lecture-table td strong,
.assignment-content h3 {
  display: block;
}

.lecture-table td span {
  display: block;
  color: var(--ink-soft);
  margin-top: 0.08rem;
}

.assignment-list {
  display: grid;
}

.assignment-row {
  display: grid;
  grid-template-columns: 110px minmax(0, 1.45fr) 170px minmax(150px, 0.9fr);
  gap: 0.95rem;
  align-items: start;
  padding: 0.88rem 1rem;
  border-bottom: 1px solid var(--line);
}

.assignment-row:last-child {
  border-bottom: 0;
}

.assignment-meta {
  color: var(--muted);
  font-size: 0.88rem;
}

.assignment-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.materials-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
}

.material-column {
  padding: 0.9rem 0.95rem;
}

.site-footer {
  padding: 1.3rem 0 1.9rem;
}

.footer-inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line-strong);
}

.footer-inner strong {
  font-size: 0.88rem;
}

.footer-inner p {
  margin-bottom: 0;
  font-size: 0.84rem;
}

/* ============================================================
   Additions for spreadsheet-synced content
   ============================================================ */

.tbd {
  color: var(--muted);
  font-style: italic;
}

.date-dow {
  display: block;
  color: var(--muted);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.lecture-table td .date-dow {
  margin-top: 0;
}

.lecture-table td:first-child {
  white-space: nowrap;
}

.badges {
  display: flex !important;
  flex-wrap: wrap;
  gap: 0.3rem;
  margin-top: 0.32rem !important;
}

.pill {
  display: inline-block;
  font-style: normal;
  font-size: 0.72rem;
  line-height: 1.35;
  padding: 0.08rem 0.48rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--paper-strong);
  color: var(--ink-soft);
  max-width: 100%;
}

.pill-due {
  border-color: rgba(146, 64, 14, 0.35);
  color: #92400e;
  background: rgba(217, 119, 6, 0.07);
}

.pill-oral {
  border-color: rgba(165, 28, 48, 0.35);
  color: var(--crimson-deep);
  background: var(--crimson-soft);
}

.break-row td {
  color: var(--muted);
  font-style: italic;
  background: rgba(23, 29, 38, 0.025);
}

.upcoming-note td {
  background: transparent;
}

.upcoming-note-row p {
  margin-bottom: 0;
  color: var(--muted);
  font-style: italic;
}

.section-info {
  margin: 0.55rem 0 0;
  padding-top: 0.55rem;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
}

.supp {
  color: var(--muted);
  font-size: 0.86em;
  margin-top: 0.14rem;
}

.footnotes {
  list-style: none;
  margin: 0;
  padding: 0.6rem 0.9rem 0.7rem;
  border-top: 1px solid var(--line);
}

.footnotes li {
  color: var(--muted);
  font-size: 0.8rem;
}

.footnotes li + li {
  margin-top: 0.18rem;
}

.sync-note {
  color: var(--muted);
  font-size: 0.76rem;
  text-align: right;
}

.sponsor-note {
  margin: 1rem 0 0;
  padding-top: 0.85rem;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 0.87rem;
}

.past-row {
  opacity: 0.55;
}

@media (max-width: 920px) {
  .header-inner,
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .course-meta-grid,
  .materials-grid,
  .course-body-grid {
    grid-template-columns: 1fr;
  }

  .assignment-row {
    grid-template-columns: 1fr;
    gap: 0.45rem;
  }
}

@media (max-width: 720px) {
  body {
    font-size: 13.5px;
  }

  .container {
    width: min(calc(100% - 1rem), var(--container));
  }

  .course-panel,
  .panel,
  .material-column {
    padding-left: 0.85rem;
    padding-right: 0.85rem;
  }

  .course-meta-grid {
    grid-template-columns: 1fr;
  }

  .assignment-row {
    padding-left: 0;
    padding-right: 0;
  }
}