:root {
  --bg: #f4f6f8;
  --panel: #ffffff;
  --text: #17202a;
  --muted: #637083;
  --line: #d9e0e8;
  --primary: #116149;
  --primary-hover: #0d4f3b;
  --danger: #b42318;
  --soft: #eef5f2;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
}

.shell,
.admin-shell {
  width: min(1120px, calc(100vw - 32px));
  margin: 32px auto;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
  box-shadow: 0 8px 24px rgba(17, 24, 39, 0.06);
}

.panel.narrow {
  max-width: 420px;
  margin: 12vh auto 0;
}

.topbar,
.section-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}

h1,
h2 {
  margin: 0 0 6px;
  letter-spacing: 0;
}

h1 {
  font-size: 26px;
}

h2 {
  font-size: 18px;
}

.muted,
small,
.field-hint {
  color: var(--muted);
}

.form-grid,
.admin-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.admin-grid {
  margin-bottom: 18px;
}

.wide {
  grid-column: 1 / -1;
}

.stack {
  display: grid;
  gap: 14px;
}

.two-col,
.filters {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.filters {
  grid-template-columns: minmax(180px, 1fr) minmax(160px, 1fr) auto;
  align-items: end;
  margin-bottom: 16px;
}

label,
.project-intro,
.project-countdown,
.intro-text-field {
  display: grid;
  gap: 7px;
}

label span,
.intro-text-field > label,
.project-intro > span,
.project-countdown > span {
  font-size: 14px;
  font-weight: 650;
}

.intro-text-field .field-hint {
  font-weight: 400;
  line-height: 1.45;
}

.project-overview {
  display: grid;
  gap: 12px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fafc;
}

.project-overview h2 {
  margin: 0;
}

.project-overview-list {
  display: grid;
  gap: 10px;
}

.project-overview-item {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  overflow: hidden;
}

.project-overview-fields {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0;
}

.project-overview-fields div {
  display: grid;
  gap: 4px;
  padding: 12px;
  border-right: 1px solid var(--line);
}

.project-overview-fields div:nth-child(3) {
  border-right: 0;
}

.project-overview-fields dt,
.project-overview-fields dd {
  margin: 0;
  line-height: 1.45;
}

.project-overview-fields dt {
  color: var(--muted);
  font-size: 13px;
  font-weight: 650;
}

.project-overview-fields dd {
  overflow-wrap: anywhere;
  white-space: pre-wrap;
}

.project-overview-intro {
  grid-column: 1 / -1;
  border-right: 0;
  border-top: 1px solid var(--line);
}

.project-overview-empty {
  color: var(--muted);
}

.template-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

input,
select,
textarea {
  width: 100%;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 9px 11px;
  font: inherit;
  background: #fff;
}

textarea {
  resize: vertical;
  line-height: 1.55;
}

input:focus,
select:focus,
textarea:focus {
  outline: 2px solid rgba(17, 97, 73, 0.18);
  border-color: var(--primary);
}

.file-picker {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.file-picker input[type="file"] {
  display: none;
}

.file-names {
  min-height: 24px;
  color: var(--muted);
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.multi-select {
  position: relative;
}

.multi-select-toggle {
  width: 100%;
  justify-content: flex-start;
  background: #fff;
  color: var(--text);
  border-color: var(--line);
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.multi-select-toggle:hover {
  background: #fff;
  border-color: var(--primary);
}

.multi-select-menu {
  position: absolute;
  z-index: 20;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  max-height: 240px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  box-shadow: 0 10px 24px rgba(17, 24, 39, 0.12);
  padding: 6px;
}

.multi-select-option {
  display: flex;
  grid-template-columns: none;
  align-items: center;
  gap: 8px;
  padding: 8px;
  border-radius: 4px;
  cursor: pointer;
}

.multi-select-option:hover {
  background: var(--soft);
}

.multi-select-option input {
  width: auto;
  min-height: 0;
}

.multi-select-empty {
  padding: 8px;
  color: var(--muted);
}

.intro-box,
.countdown-box {
  min-height: 74px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 12px;
  background: var(--soft);
  white-space: pre-wrap;
}

.countdown-box {
  min-height: 48px;
  font-weight: 650;
}

.countdown-box.error {
  border-color: rgba(180, 35, 24, 0.35);
  background: #fff1f0;
  color: var(--danger);
}

.actions,
.row-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.submission-guide {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
  overflow-wrap: anywhere;
}

.submission-guide p,
.submission-guide ol {
  margin: 0 0 8px;
}

.submission-guide ol {
  padding-left: 1.5em;
}

.submission-guide li + li {
  margin-top: 4px;
}

.table-actions {
  justify-content: flex-end;
  margin-top: 14px;
}

button,
.ghost-link {
  min-height: 40px;
  border-radius: 6px;
  border: 1px solid var(--primary);
  background: var(--primary);
  color: #fff;
  padding: 8px 14px;
  font: inherit;
  font-weight: 650;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

button:hover,
.ghost-link:hover {
  background: var(--primary-hover);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

button.secondary,
.ghost-link {
  background: #fff;
  color: var(--primary);
}

button.secondary:hover,
.ghost-link:hover {
  background: var(--soft);
}

.success-dialog {
  width: min(480px, calc(100vw - 32px));
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0;
  color: var(--text);
  box-shadow: 0 24px 70px rgba(17, 24, 39, 0.24);
}

.success-dialog::backdrop {
  background: rgba(17, 24, 39, 0.42);
}

.success-dialog-body {
  padding: 22px;
}

.success-dialog h2 {
  margin-bottom: 6px;
}

.admin-dialog {
  max-height: calc(100vh - 48px);
  overflow: auto;
}

.admin-dialog.wide-dialog {
  width: min(640px, calc(100vw - 32px));
}

.compact-head {
  align-items: center;
  margin-bottom: 16px;
}

.compact-head h2 {
  margin: 0;
}

.dialog-list {
  max-height: 420px;
  overflow: auto;
}

.success-details {
  display: grid;
  gap: 0;
  margin: 18px 0 20px;
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
}

.success-details div {
  display: grid;
  grid-template-columns: 132px minmax(0, 1fr);
  min-height: 44px;
  border-bottom: 1px solid var(--line);
}

.success-details div:last-child {
  border-bottom: 0;
}

.success-details dt,
.success-details dd {
  margin: 0;
  padding: 11px 12px;
  line-height: 1.45;
}

.success-details dt {
  background: var(--soft);
  color: var(--muted);
  font-weight: 650;
}

.success-details dd {
  overflow-wrap: anywhere;
}

.dialog-actions {
  display: flex;
  justify-content: flex-end;
}

.status {
  color: var(--muted);
}

.status.error {
  color: var(--danger);
}

.hidden {
  display: none;
}

.list {
  margin-top: 18px;
  display: grid;
  gap: 10px;
}

.list-item {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 12px;
  display: grid;
  gap: 8px;
}

.list-item-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.project-title {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.creator-tag {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 2px 8px;
  background: var(--soft);
  color: var(--muted);
  font-size: 12px;
  font-weight: 650;
}

.list-item .meta {
  color: var(--muted);
  font-size: 13px;
  white-space: pre-wrap;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.compact-table table {
  min-width: 640px;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 860px;
}

th,
td {
  text-align: left;
  padding: 12px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

th {
  background: #f8fafc;
  font-size: 13px;
}

td a {
  color: var(--primary);
  font-weight: 650;
}

@media (max-width: 760px) {
  .form-grid,
  .admin-grid,
  .two-col,
  .filters {
    grid-template-columns: 1fr;
  }

  .topbar,
  .section-head {
    display: grid;
  }

  .success-details div {
    grid-template-columns: 1fr;
  }

  .project-overview-fields {
    grid-template-columns: 1fr;
  }

  .project-overview-fields div {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .project-overview-fields div:last-child {
    border-bottom: 0;
  }
}