/* Diễn đàn: dùng chung bảng màu và kiểu viền "đồ chơi" với landing.css */

.forum {
  max-width: 1100px;
  margin: 0 auto;
  padding: 20px 16px 48px;
}

.forum h1, .forum h2 { font-family: "Baloo 2", "Be Vietnam Pro", sans-serif; font-weight: 800; color: var(--ink); }

.forum-crumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-weight: 600;
  color: #6a6590;
  margin-bottom: 12px;
}
.forum-crumbs a { color: #2f6fb5; }

.forum-hero {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  background:
    radial-gradient(circle at 92% 20%, #fff6a8 0 46px, transparent 48px),
    linear-gradient(180deg, #59bfff, #b7e6ff);
  border: 3px solid var(--ink);
  border-radius: 24px;
  box-shadow: 0 6px 0 var(--ink);
  padding: 22px 24px;
  margin-bottom: 20px;
}
.forum-hero h1 { font-size: clamp(2rem, 4vw, 2.8rem); line-height: 1.1; }
.forum-hero p { color: #102044; font-weight: 600; max-width: 40rem; }
.forum-hero-sm h1 { font-size: clamp(1.6rem, 3.4vw, 2.2rem); }
.forum-eyebrow {
  display: inline-block;
  background: #fff;
  border: 2px solid var(--ink);
  border-radius: 99px;
  padding: 2px 10px;
  font-size: 0.85rem;
  font-weight: 800;
  margin-bottom: 6px;
}

.forum-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 20px;
  align-items: start;
}

.forum-panel {
  background: #fff;
  border: 3px solid var(--ink);
  border-radius: 20px;
  box-shadow: 0 5px 0 var(--ink);
  padding: 16px;
}
.forum-panel + .forum-panel { margin-top: 16px; }
.forum-panel h2 { font-size: 1.25rem; margin-bottom: 8px; }

.forum-empty { color: #6a6590; padding: 8px 0; }

/* Danh sách chuyên mục */
.forum-cats { display: grid; gap: 12px; }
.forum-cat {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr) 110px minmax(0, 200px);
  align-items: center;
  gap: 14px;
  background: #fff;
  border: 3px solid var(--ink);
  border-radius: 18px;
  box-shadow: 0 5px 0 var(--ink);
  padding: 14px 16px;
  color: var(--ink);
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.forum-cat:hover { transform: translateY(2px); box-shadow: 0 3px 0 var(--ink); color: var(--ink); }
.forum-cat-icon {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: #8fd8ff;
  border: 2px solid var(--ink);
  font-size: 1.4rem;
}
.forum-cat:nth-child(5n+1) .forum-cat-icon { background: var(--yellow); }
.forum-cat:nth-child(5n+3) .forum-cat-icon { background: var(--mint); }
.forum-cat:nth-child(5n+4) .forum-cat-icon { background: var(--pink); }
.forum-cat:nth-child(5n+5) .forum-cat-icon { background: #c9b6ff; }
.forum-cat-main { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.forum-cat-main b { font-family: "Baloo 2", sans-serif; font-size: 1.25rem; line-height: 1.2; }
.forum-cat-main span { color: #3c3760; font-size: 0.92rem; line-height: 1.4; }
.forum-cat-stats, .forum-cat-last { display: flex; flex-direction: column; gap: 2px; font-size: 0.88rem; color: #6a6590; }
.forum-cat-stats b { color: var(--ink); }
.forum-cat-last-title {
  color: var(--ink);
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Cột phải */
.forum-recent { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.forum-recent li { display: flex; flex-direction: column; gap: 2px; padding-bottom: 10px; border-bottom: 1px dashed #d8d4ee; }
.forum-recent li:last-child { border-bottom: 0; padding-bottom: 0; }
.forum-recent a { color: var(--ink); font-weight: 700; line-height: 1.35; }
.forum-recent a:hover { color: #2f6fb5; }
.forum-recent span { font-size: 0.82rem; color: #6a6590; }
.forum-rules ol { margin: 0 0 0 1.2em; display: grid; gap: 6px; color: #3c3760; font-size: 0.92rem; }
.forum-rules { background: #fff8de; }

/* Danh sách chủ đề */
.forum-threads { padding: 6px 16px; }
.forum-row {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr) 120px 140px;
  align-items: center;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px dashed #d8d4ee;
  color: var(--ink);
}
.forum-row:last-child { border-bottom: 0; }
.forum-row:hover .forum-row-title { color: #2f6fb5; }
.forum-row-main { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.forum-row-title { font-weight: 700; font-size: 1.05rem; line-height: 1.35; }
.forum-row-meta, .forum-row-stats, .forum-row-last { font-size: 0.85rem; color: #6a6590; }
.forum-row-stats, .forum-row-last { display: flex; flex-direction: column; gap: 2px; }
.forum-row-stats b { color: var(--ink); }

.forum-avatar {
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid var(--ink);
  font-family: "Baloo 2", sans-serif;
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--ink);
  flex-shrink: 0;
}
.forum-avatar.is-lg { width: 56px; height: 56px; font-size: 1.5rem; }

.forum-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 1px 8px;
  border-radius: 99px;
  border: 2px solid var(--ink);
  background: #efe6ff;
  color: var(--ink);
  vertical-align: middle;
}
.forum-badge.is-pin { background: var(--yellow); }
.forum-badge.is-lock { background: #ffd1d6; }
.forum-badge.is-admin { background: var(--mint); }

/* Trang chủ đề */
.forum-thread-head { margin-bottom: 12px; }
.forum-thread-head h1 { font-size: clamp(1.6rem, 3.4vw, 2.3rem); line-height: 1.15; }
.forum-thread-head p { color: #6a6590; font-weight: 600; }
.forum-tools { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.forum-tools form { display: flex; gap: 8px; }
.forum-tools .button { border: 2px solid var(--ink); border-radius: 8px; font-weight: 700; }

.forum-post {
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr);
  background: #fff;
  border: 3px solid var(--ink);
  border-radius: 20px;
  box-shadow: 0 5px 0 var(--ink);
  margin-bottom: 14px;
  overflow: hidden;
}
.forum-post.is-op { border-width: 3px; box-shadow: 0 6px 0 var(--ink); }
.forum-post.is-op .forum-post-author { background: #fff6c8; }
.forum-post-author {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 16px 10px;
  background: #e7f6ff;
  border-right: 2px solid var(--ink);
  text-align: center;
  word-break: break-word;
}
.forum-post-body { padding: 14px 18px 18px; min-width: 0; }
.forum-post-time {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: #6a6590;
  margin-bottom: 8px;
}
.forum-post-time a { color: #2f6fb5; font-weight: 700; }
.forum-text {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  line-height: 1.6;
  color: #1f1b3d;
}

.forum-inline { display: inline; margin-left: auto; }
.forum-link-btn {
  all: unset;
  cursor: pointer;
  color: #2f6fb5;
  font-weight: 700;
}
.forum-link-btn:hover { text-decoration: underline; }

.forum-pages { display: flex; flex-wrap: wrap; gap: 6px; margin: 16px 0; }
.forum-pages a, .forum-pages span {
  display: inline-grid;
  place-items: center;
  min-width: 36px;
  height: 36px;
  padding: 0 8px;
  border: 2px solid var(--ink);
  border-radius: 10px;
  background: #fff;
  color: var(--ink);
  font-weight: 700;
}
.forum-pages .is-current { background: var(--yellow); }

.forum-reply .textarea,
.forum-create .textarea,
.forum-create .input,
.forum-create select { border: 2px solid var(--ink); border-radius: 12px; box-shadow: none; }
.forum-create h1 { font-size: 1.8rem; margin-bottom: 12px; }
.forum-form-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 12px;
}
.forum-form-foot span { font-size: 0.85rem; color: #6a6590; }
.forum .toy { font-size: 1.05rem; min-height: 46px; }

@media (max-width: 900px) {
  .forum-layout { grid-template-columns: minmax(0, 1fr); }
  .forum-cat { grid-template-columns: 48px minmax(0, 1fr); }
  .forum-cat-icon { width: 48px; height: 48px; }
  .forum-cat-stats { grid-column: 2; flex-direction: row; gap: 12px; }
  .forum-cat-last { display: none; }
  .forum-row { grid-template-columns: 40px minmax(0, 1fr); }
  .forum-row-stats { grid-column: 2; flex-direction: row; gap: 12px; }
  .forum-row-last { display: none; }
}

@media (max-width: 600px) {
  .forum { padding-top: 12px; }
  .forum-post { grid-template-columns: minmax(0, 1fr); }
  .forum-post-author {
    flex-direction: row;
    justify-content: flex-start;
    border-right: 0;
    border-bottom: 2px solid var(--ink);
    padding: 10px 14px;
  }
  .forum-avatar.is-lg { width: 40px; height: 40px; font-size: 1.15rem; }
}