:root {
  --bg: #f9fafb;
  --card: #ffffff;
  --ink: #111827;
  --muted: #6b7280;
  --accent: #2563eb;
  --accent-2: #10b981;
  --border: #e5e7eb;
  --hover: #f3f4f6;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 8px 24px rgba(17, 24, 39, 0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
}

header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 10;
}

header .brand {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  max-width: 1100px;
  margin: 0 auto;
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand h1,
.brand-title {
  margin: 0;
  font-size: 20px;
  letter-spacing: 0.2px;
  font-weight: 700;
}

.brand-subtitle {
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.3px;
}

nav a {
  margin-right: 12px;
  text-decoration: none;
  color: var(--muted);
  font-weight: 600;
}

nav a:hover { color: var(--ink); }

.lang-toggle button {
  border: 1px solid var(--border);
  background: var(--card);
  padding: 6px 10px;
  margin-left: 6px;
  cursor: pointer;
  font-weight: 600;
  border-radius: 8px;
}

.lang-toggle button.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px;
}

.hero {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 24px;
  align-items: center;
  background: var(--card);
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: var(--shadow-sm);
}

.hero h2 { margin-top: 0; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}

.section {
  margin-top: 28px;
}

.section h3 {
  margin-bottom: 12px;
  border-left: 6px solid var(--accent);
  padding-left: 12px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-shadow: var(--shadow-sm);
}

.card a { color: var(--accent); text-decoration: none; font-weight: 600; }

.badge {
  display: inline-block;
  background: #eef2ff;
  border: 1px solid #e0e7ff;
  border-radius: 999px;
  padding: 2px 10px;
  font-size: 12px;
  color: #3730a3;
  font-weight: 600;
}

.footer {
  margin-top: 48px;
  padding: 24px;
  text-align: center;
  color: var(--muted);
}

.table {
  width: 100%;
  border-collapse: collapse;
}

.table th, .table td {
  border-bottom: 1px solid var(--border);
  padding: 10px;
  text-align: left;
  font-size: 14px;
}

.admin-layout {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px;
}

.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.input {
  width: 100%;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 10px;
  font-family: inherit;
  background: #fff;
}

.button {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 10px 14px;
  border-radius: 10px;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}

.button.secondary {
  background: var(--accent-2);
  color: #ffffff;
}

.notice {
  padding: 10px 12px;
  background: #fef3c7;
  border: 1px solid #fde68a;
  border-radius: 10px;
  margin-bottom: 12px;
}

.home-layout.compact {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 20px;
  margin-top: 22px;
}

.home-left {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  align-content: start;
}

.home-left .panel.full {
  grid-column: 1 / -1;
}

.home-right {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
  box-shadow: var(--shadow-sm);
}

.panel-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 6px;
}

.panel-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-size: 16px;
  font-weight: 600;
}

.panel-subtitle {
  margin: 0 0 10px 0;
  font-size: 12px;
  color: var(--muted);
}

.panel-icon {
  width: 30px;
  height: 30px;
  border-radius: 9px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: #fff;
}

.panel-icon.blue { background: var(--accent); }
.panel-icon.green { background: var(--accent-2); }
.panel-icon.amber { background: #f59e0b; }
.panel-icon.neutral {
  background: #f3f4f6;
  color: #111827;
}

.panel-icon svg {
  width: 16px;
  height: 16px;
}

.panel-link {
  font-size: 13px;
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

.stack {
  display: grid;
  gap: 10px;
}

.stack .card {
  background: var(--hover);
  border-left: 4px solid var(--accent);
  box-shadow: none;
}

.card-title {
  font-weight: 600;
  font-size: 14px;
  margin: 0 0 4px 0;
}

.card-summary {
  color: var(--muted);
  font-size: 13px;
  margin: 0 0 6px 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-meta {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 12px;
}

.card-link {
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
}

.empty {
  font-size: 12px;
  color: var(--muted);
  padding: 8px 0;
}

.deadline-item {
  background: var(--hover);
  border-radius: 12px;
  padding: 10px 12px;
  border-left: 4px solid #f59e0b;
  display: grid;
  gap: 6px;
}

.deadline-date {
  font-size: 12px;
  font-weight: 700;
  color: #b45309;
}

.news-item {
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}

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

.news-title {
  font-size: 13px;
  font-weight: 600;
  margin: 0 0 4px 0;
}

.news-summary {
  font-size: 12px;
  color: var(--muted);
  margin: 0 0 4px 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-date {
  font-size: 11px;
  color: var(--muted);
}

.calendar-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 16px;
  box-shadow: var(--shadow-sm);
}

.calendar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.cal-title {
  font-size: 16px;
  font-weight: 600;
}

.cal-nav {
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 10px;
  padding: 6px 10px;
  cursor: pointer;
  font-weight: 600;
}

.cal-week {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 12px;
  text-align: center;
}

.cal-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
}

.cal-day {
  height: 38px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  border: 1px solid transparent;
  cursor: pointer;
  background: #fff;
}

.cal-day.muted {
  color: #c4c7cf;
}

.cal-day.today {
  border-color: #111827;
}

.cal-day.has {
  background: #111827;
  color: #fff;
}

.cal-day.selected {
  outline: 2px solid #111827;
  outline-offset: 2px;
}

.calendar-list {
  margin-top: 16px;
  display: grid;
  gap: 10px;
}

.calendar-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px 14px;
  box-shadow: var(--shadow-sm);
}

.calendar-item-title {
  font-weight: 600;
  margin-bottom: 4px;
}

.calendar-item-date {
  font-size: 12px;
  color: var(--muted);
}

@media (max-width: 900px) {
  .home-layout.compact { grid-template-columns: 1fr; }
  .home-left { grid-template-columns: 1fr; }
}

@media (max-width: 800px) {
  .hero { grid-template-columns: 1fr; }
  nav { display: none; }
}