/* ===== Variables ===== */
:root {
  --sidebar-width: 260px;
  --pico-font-size: 16px;
}

/* ===== Body Reset ===== */
body {
  margin: 0;
  padding: 0;
  display: flex;
  min-height: 100vh;
}

/* ===== Sidebar ===== */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--sidebar-width);
  overflow-y: auto;
  padding: 1.5rem 1rem;
  background: var(--pico-card-background-color);
  border-right: 1px solid var(--pico-muted-border-color);
  z-index: 100;
}

.sidebar nav header {
  padding: 0 0.5rem 1rem;
  margin-bottom: 0.5rem;
  border-bottom: 1px solid var(--pico-muted-border-color);
}

.sidebar nav header strong {
  font-size: 1.15rem;
}

.sidebar nav > ul,
.sidebar nav details > ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sidebar nav > ul > li,
.sidebar nav details > ul > li {
  margin: 0;
}

.sidebar nav a {
  display: block;
  padding: 0.4rem 0.75rem;
  border-radius: 0.375rem;
  text-decoration: none;
  color: var(--pico-color);
  font-size: 0.9rem;
  transition: background 0.15s;
}

.sidebar nav a:hover {
  background: var(--pico-primary-focus);
}

.sidebar nav a[aria-current="page"] {
  background: var(--pico-primary-background);
  color: var(--pico-primary-inverse);
  font-weight: 600;
}

.sidebar details {
  margin: 0.5rem 0;
  border: none;
}

.sidebar details summary {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--pico-muted-color);
  padding: 0.4rem 0.75rem;
  cursor: pointer;
}

/* ===== Main Content ===== */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  padding: 2rem;
  max-width: 100%;
  min-width: 0;
}

.main-content > main {
  max-width: 1200px;
  margin: 0 auto;
}

.main-content > footer {
  max-width: 1200px;
  margin: 2rem auto 0;
}

/* ===== Mobile Header ===== */
.mobile-header {
  display: none;
  position: sticky;
  top: 0;
  z-index: 90;
  background: var(--pico-card-background-color);
  border-bottom: 1px solid var(--pico-muted-border-color);
  padding: 0.75rem 1rem;
  align-items: center;
  gap: 0.75rem;
}

/* ===== Burger Button ===== */
.burger {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.25rem;
  width: 2rem;
  height: 2rem;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.burger span {
  display: block;
  width: 1.25rem;
  height: 2px;
  background: var(--pico-color);
  border-radius: 1px;
  transition: all 0.3s ease;
  position: absolute;
}

.burger span:nth-child(1) { transform: translateY(-6px); }
.burger span:nth-child(3) { transform: translateY(6px); }

/* Burger → X animation */
.sidebar-open .burger span:nth-child(1) {
  transform: rotate(45deg);
}
.sidebar-open .burger span:nth-child(2) {
  opacity: 0;
}
.sidebar-open .burger span:nth-child(3) {
  transform: rotate(-45deg);
}

/* ===== Overlay ===== */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 99;
}

/* ===== Card Grid ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
  margin: 1rem 0;
}

.card-grid article.card {
  height: 100%;
  margin: 0;
}

.card-grid article.card header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.5rem;
}

.card-grid article.card header a {
  text-decoration: none;
}

/* ===== Mermaid ===== */
.mermaid {
  background: var(--pico-card-background-color);
  padding: 1.5rem;
  border-radius: 8px;
  margin: 1rem 0;
  overflow-x: auto;
}

.mermaid svg {
  max-width: 100%;
  height: auto;
}

/* ===== Status Pills ===== */
.status-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0.75rem 0 1.5rem;
}

.status-pill {
  display: inline-block;
  padding: 0.2rem 0.7rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  color: #fff;
  line-height: 1.4;
}

.status-pill--in-progress { background: #e53e3e; }
.status-pill--review      { background: #ed8936; }
.status-pill--todo        { background: #3182ce; }
.status-pill--done        { background: #38a169; }

/* ===== Tables ===== */
.main-content table {
  width: 100%;
}

/* ===== Responsive: Mobile ===== */
@media (max-width: 768px) {
  .mobile-header {
    display: flex;
  }

  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.3s ease;
  }

  .sidebar-open .sidebar {
    transform: translateX(0);
  }

  .sidebar-open .sidebar-overlay {
    display: block;
  }

  .main-content {
    margin-left: 0;
    padding: 1rem;
  }
}