/* ---------- Dùng chung giữa các trang ---------- */
.h3 { font-size: 1.2rem; }
.grid-4 { display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(min(100%, 240px), 1fr)); }
.section-soft { background: var(--bg-soft); }

.check-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.check-list li { display: flex; gap: 10px; align-items: flex-start; color: var(--text-2); }
.check-list .icon { color: var(--primary); margin-top: 2px; }

/* ---------- Trang chủ ---------- */
.hero { padding: 40px 0 24px; }
.hero-grid { display: grid; gap: 24px; align-items: center; }
.hero h1 { margin-top: 12px; }
.hero-lead { font-size: 1.075rem; color: var(--text-2); max-width: 560px; }

.ask-box {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 6px 6px 14px;
  margin: 20px 0 14px;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow-card);
  max-width: 620px;
}
.ask-box:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px var(--tint); }
.ask-box > .icon { color: var(--primary); }
.ask-input { flex: 1; min-width: 0; min-height: var(--tap); border: 0; background: none; outline: none; }
.ask-input::placeholder { color: var(--text-muted); }

.quick { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; }
.hero-card { background: var(--surface); }
.hero-card h2 { margin-bottom: 14px; }

@media (min-width: 960px) {
  .hero { padding: 56px 0 32px; }
  .hero-grid { grid-template-columns: 1.4fr 1fr; gap: 48px; }
}
@media (max-width: 479px) {
  .ask-box { flex-wrap: wrap; padding: 6px; }
  .ask-box > .icon { display: none; }
  .ask-input { padding: 0 8px; flex-basis: 100%; }
  .ask-box .btn { width: 100%; }
}

.level-card,
.tool-card {
  display: block;
  color: inherit;
  text-decoration: none;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.level-card:hover,
.tool-card:hover { border-color: var(--primary); color: inherit; transform: translateY(-2px); }
.level-card h3,
.tool-card h3 { color: var(--text); }

/* Bộ lọc kho */
.filters { display: grid; gap: 0 12px; grid-template-columns: repeat(2, 1fr); align-items: end; margin-bottom: 20px; padding: 16px; }
.filters .field { margin-bottom: 12px; }
.filter-search { grid-column: 1 / -1; }
.filter-reset { grid-column: 1 / -1; justify-self: start; margin-bottom: 4px; }
@media (min-width: 960px) {
  .filters { grid-template-columns: 2fr repeat(4, 1fr) auto; }
  .filter-search,
  .filter-reset { grid-column: auto; }
  .filters .field,
  .filter-reset { margin-bottom: 0; }
}
.input-icon { position: relative; }
.input-icon .icon { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--text-muted); pointer-events: none; }
.input-icon .input { padding-left: 40px; }

.doc-grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(min(100%, 260px), 1fr)); }
.doc-card { display: flex; flex-direction: column; gap: 8px; padding: 18px; }
.doc-card .tag { align-self: flex-start; }
.doc-title { margin: 4px 0 0; font-size: 1.05rem; }
.doc-meta { margin: 0; }
.doc-actions { display: flex; gap: 8px; margin-top: auto; padding-top: 8px; }
.doc-actions .btn { flex: 1; }

.empty { text-align: center; padding: 32px 20px; }
.report-note { display: flex; gap: 8px; align-items: flex-start; margin: 20px 0 0; }
.report-note .icon { margin-top: 3px; }

.band {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 24px;
  border-radius: var(--radius-card);
  background: var(--accent);
  color: var(--on-accent);
}
.band h2 { color: var(--on-accent); margin-bottom: 4px; }
.band p { margin: 0; }

/* ---------- Tạo đề test ---------- */
.paper-wrap { overflow-x: auto; padding-bottom: 4px; }
.paper {
  width: 100%;
  max-width: 794px; /* khổ A4 ở 96dpi */
  margin: 0 auto;
  padding: 32px 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  box-shadow: var(--shadow-card);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--text);
}
.paper h2 { text-align: center; font-size: 1.25rem; margin-bottom: 2px; }
.paper .paper-sub { text-align: center; color: var(--text-2); margin-bottom: 16px; }
.paper-info { display: grid; gap: 8px 16px; grid-template-columns: 1fr auto; margin-bottom: 16px; }
.dotted { border-bottom: 1px dotted var(--text-muted); display: inline-block; min-width: 120px; }
.score-box { display: grid; grid-template-columns: 90px 1fr; border: 1px solid var(--text-muted); margin-bottom: 20px; }
.score-box > div { padding: 8px 10px; min-height: 64px; }
.score-box > div + div { border-left: 1px solid var(--text-muted); }
.paper h3 { font-size: 1rem; margin: 18px 0 8px; }
.paper ol { margin: 0; padding-left: 22px; display: grid; gap: 10px; }
.choices { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2px 16px; margin-top: 4px; color: var(--text-2); }
.lines { margin-top: 6px; }
.lines span { display: block; height: 26px; border-bottom: 1px dotted var(--text-muted); }
.paper-foot { margin-top: 24px; padding-top: 10px; border-top: 1px solid var(--border); font-size: 0.8rem; color: var(--text-muted); }
.preview-actions { display: flex; flex-wrap: wrap; gap: 10px; justify-content: flex-end; margin-top: 16px; }
.matrix { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }

/* ---------- Lộ trình ---------- */
.phase-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.phase { display: grid; grid-template-columns: auto 1fr; gap: 14px; }
.phase-num {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--on-primary);
  font-family: var(--font-heading);
  font-weight: var(--heading-weight);
}
.phase h3 { margin-bottom: 2px; }
.phase dl { display: grid; gap: 6px; margin: 10px 0 0; }
.phase dt { font-weight: 600; font-size: 0.85rem; color: var(--primary-strong); }
.phase dd { margin: 0 0 4px; color: var(--text-2); font-size: 0.925rem; }
.milestone { border-left: 3px solid var(--primary); padding: 2px 0 2px 14px; margin-bottom: 18px; }
.milestone h3 { font-size: 1rem; margin-bottom: 4px; }
.message {
  padding: 12px 14px;
  margin: 8px 0;
  border-radius: 12px;
  background: var(--bg-soft);
  color: var(--text);
  font-size: 0.9rem;
}

/* ---------- Công cụ AI ---------- */
.step-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: var(--primary-strong);
  margin-bottom: 8px;
}
.step-label b {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--tint);
  font-size: 0.9rem;
}
.note {
  display: flex;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 12px;
  background: var(--bg-soft);
  color: var(--text-2);
  font-size: 0.875rem;
}
.note .icon { color: var(--primary); margin-top: 2px; }
.tool-card .card-foot { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-top: 12px; }

/* ---------- Đóng góp & xếp hạng ---------- */
.dropzone {
  display: grid;
  place-items: center;
  gap: 6px;
  padding: 24px 16px;
  border: 1.5px dashed var(--border);
  border-radius: 14px;
  background: var(--bg-soft);
  text-align: center;
  color: var(--text-2);
  cursor: pointer;
}
.dropzone:hover { border-color: var(--primary); }
.dropzone .icon { color: var(--primary); }
.checkbox { display: flex; gap: 10px; align-items: flex-start; font-size: 0.9rem; color: var(--text-2); }
.checkbox input { width: 20px; height: 20px; margin: 2px 0 0; accent-color: var(--primary); flex: none; }
.list { list-style: none; margin: 0; padding: 0; }
.list li { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--border); }
.list li:last-child { border-bottom: 0; }
.status { padding: 2px 10px; border-radius: var(--radius-pill); font-size: 0.75rem; font-weight: 600; white-space: nowrap; }
.status-ok { background: var(--tint); color: var(--primary-strong); }
.status-wait { background: var(--accent); color: var(--on-accent); }
.status-fix { background: var(--surface); color: var(--text); border: 1px solid var(--text-muted); }
.rank { list-style: none; margin: 0; padding: 0; counter-reset: rank; }
.rank li { display: grid; grid-template-columns: 32px 1fr auto; align-items: center; gap: 10px; padding: 10px 0; border-bottom: 1px solid var(--border); }
.rank li::before {
  counter-increment: rank;
  content: counter(rank);
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bg-soft);
  color: var(--text-2);
  font-weight: 600;
  font-size: 0.85rem;
}
.rank li:nth-child(-n + 3)::before { background: var(--primary); color: var(--on-primary); }
.rank .pts { font-weight: 600; color: var(--primary-strong); }
.points { display: grid; gap: 8px; margin: 0; }
.points div { display: flex; justify-content: space-between; gap: 12px; padding: 10px 12px; border-radius: 10px; background: var(--bg-soft); }
.points dt { color: var(--text-2); }
.points dd { margin: 0; font-weight: 600; color: var(--primary-strong); }

/* ---------- Khoảng cách ---------- */
.section-block { margin-top: 20px; }
.section-gap { margin-top: 16px; }
.section-btn { margin-top: 16px; }

/* ---------- Trang văn bản (chính sách, điều khoản) ---------- */
.prose { max-width: 820px; margin: 32px auto 0; padding: 24px 20px; line-height: 1.7; }
@media (min-width: 768px) { .prose { padding: 40px 48px; } }
.prose h2 { margin-top: 1.6em; font-size: 1.3rem; }
.prose h3 { margin-top: 1.2em; font-size: 1.05rem; }
.prose ul { padding-left: 1.2em; margin: 0 0 1em; }
.prose li { margin-bottom: 0.4em; }
.table { width: 100%; border-collapse: collapse; margin: 0 0 1em; font-size: 0.925rem; }
.table th,
.table td { padding: 10px 12px; border: 1px solid var(--border); text-align: left; vertical-align: top; }
.table th { background: var(--bg-soft); font-weight: 600; }

/* Nhãn nội dung do AI tạo (Luật 134/2025/QH15 Điều 11) */
.ai-label { display: inline-flex; align-items: center; gap: 6px; margin: 0 0 10px; padding: 4px 12px; border-radius: var(--radius-pill); background: var(--accent); color: var(--on-accent); font-size: 0.8rem; font-weight: 600; }

.load-more { display: flex; justify-content: center; margin-top: 20px; }
.doc-title a { color: inherit; text-decoration: none; }
.doc-title a:hover { color: var(--primary-strong); text-decoration: underline; }

/* ---------- Trang xem tài liệu ---------- */
.breadcrumb { margin: 20px 0 12px; color: var(--text-muted); }
.breadcrumb a { color: var(--text-2); }
.viewer-layout { display: grid; gap: 20px; align-items: start; }
.viewer-side { display: grid; gap: 10px; }
.viewer-side .tag { justify-self: start; }
.viewer-side p { margin: 0; }
.viewer-side .btn-text { justify-self: start; }
.viewer-title { font-size: 1.4rem; margin: 0; }
.viewer-pages { display: grid; gap: 12px; }
.pdf-page { width: 100%; background: var(--surface); border: 1px solid var(--border); border-radius: 6px; box-shadow: var(--shadow-card); overflow: hidden; }
.pdf-page canvas { display: block; width: 100%; height: auto; }
@media (min-width: 960px) {
  .viewer-layout { grid-template-columns: 1fr 340px; }
  .viewer-side { order: 2; }
}
@media (max-width: 959px) {
  .viewer-side { order: -1; position: static; }
}

/* ---------- Quản trị ---------- */
.tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.count-badge { display: inline-grid; place-items: center; min-width: 22px; height: 22px; padding: 0 6px; border-radius: var(--radius-pill); background: var(--danger); color: var(--on-primary); font-size: 0.75rem; font-weight: 700; }
.admin-filters { display: grid; grid-template-columns: 1fr auto; gap: 8px; margin-bottom: 8px; }
.admin-list { list-style: none; margin: 0; padding: 0; }
.admin-list > li { padding: 12px 0; border-bottom: 1px solid var(--border); }
.admin-list > li:last-child { border-bottom: 0; }
.admin-item { display: grid; gap: 10px; }
.admin-item-main { display: grid; gap: 4px; min-width: 0; }
.admin-item-title { font-weight: 600; color: var(--text); text-decoration: none; overflow-wrap: anywhere; }
.admin-item-title:hover { color: var(--primary-strong); text-decoration: underline; }
.admin-item-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.admin-item-actions { display: flex; flex-wrap: wrap; gap: 6px; }
@media (min-width: 700px) {
  .admin-item { grid-template-columns: 1fr auto; align-items: center; }
}
.form-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.progress { height: 8px; border-radius: var(--radius-pill); background: var(--bg-soft); overflow: hidden; margin: 8px 0; }
.progress span { display: block; height: 100%; width: 0; background: var(--primary); transition: width 0.2s ease; }

/* Xem trước Word (.docx): khung trang giống tờ giấy, co theo màn hình */
.docx-box { display: grid; gap: 12px; }
.docx-box section.docx {
  width: 100% !important;
  min-height: 0 !important;
  margin: 0 !important;
  padding: 32px 28px !important;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  box-shadow: var(--shadow-card);
  overflow-x: auto;
  color: var(--text);
}
.docx-box table { max-width: 100%; }
/* Ảnh Word có kích thước pt riêng, nằm trong khung bọc rộng 0px: bỏ giới hạn chung của base.css */
.docx-box img { max-width: none; display: inline-block; }
@media (max-width: 599px) {
  .docx-box section.docx { padding: 18px 14px !important; }
}

/* ---------- Tải nhiều tài liệu ---------- */
.bulk-drop {
  display: grid;
  place-items: center;
  gap: 8px;
  margin: 12px 0 16px;
  padding: 28px 16px;
  border: 2px dashed var(--border);
  border-radius: 14px;
  background: var(--bg-soft);
  text-align: center;
  color: var(--text-2);
}
.bulk-drop.is-over { border-color: var(--primary); background: var(--tint); }
.bulk-drop .icon { color: var(--primary); }
.bulk-pick { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; }
.bulk-defaults { padding: 12px 14px; margin-bottom: 12px; border-radius: 12px; background: var(--bg-soft); }
.bulk-defaults p { margin: 0 0 8px; }
.bulk-defaults .field { margin-bottom: 0; }
.bulk-table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 12px; }
.bulk-table { margin: 0; min-width: 760px; }
.bulk-table th, .bulk-table td { border-width: 0 0 1px; vertical-align: middle; padding: 8px; }
.bulk-table td:nth-child(2) { min-width: 240px; }
.bulk-table .input-sm { min-height: 40px; padding: 6px 8px; font-size: 0.875rem; }
.bulk-path { display: block; margin-top: 2px; overflow-wrap: anywhere; }
.bulk-need td { background: var(--accent); }
.bulk-table input[type="checkbox"] { width: 20px; height: 20px; accent-color: var(--primary); }