/* Naruto lesson layout · Wabi-sabi Shinobi Field Manual 3.0 */
:root {
  --ninja-red: #b24d2c;
  --ninja-red-hover: #8f3d23;
  --ninja-gold: #c98838;
  --ninja-dark: #2c251e;
  --ninja-paper: #fffcf7;
  --ninja-paper2: #f7f0e4;
  --ninja-border: #dfd4c4;
}

body.ninja-guide {
  --ui-muted: #6f6558;
  --dim: #6f6558;
  background: radial-gradient(circle at 85% 3%, rgba(229, 185, 138, 0.22), transparent 38%), #f5f0e6 !important;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.95;
  color: var(--ninja-dark);
}

body.ninja-guide main {
  max-width: 1040px;
  padding-top: 36px;
  margin: 0 auto;
}

/* Header Banner in Ninja Pages */
body.ninja-guide .ninja-head {
  padding: 34px 38px;
  border-left: 0;
  border-top: 5px solid var(--ninja-red);
  background: linear-gradient(135deg, #ffffff 0%, #fffbf4 55%, #f6ece0 100%);
  border-radius: 18px;
  box-shadow: 0 4px 20px rgba(85, 50, 20, 0.06), 0 1px 3px rgba(85, 50, 20, 0.04);
  border: 1px solid var(--ninja-border);
  border-top-width: 5px;
  margin-bottom: 24px;
  position: relative;
  overflow: hidden;
}
body.ninja-guide .ninja-head:after {
  content: "忍";
  font-family: "STKaiti", "KaiTi", "Songti SC", serif;
  font-size: 130px;
  line-height: 1;
  position: absolute;
  right: 28px;
  bottom: -15px;
  color: rgba(178, 77, 44, 0.06);
  pointer-events: none;
  font-weight: 900;
  user-select: none;
}
body.ninja-guide .ninja-head h2 {
  font-family: inherit;
  font-size: clamp(26px, 3.2vw, 34px);
  letter-spacing: -0.02em;
  color: var(--ninja-dark);
  margin: 0 0 10px;
  z-index: 1;
  position: relative;
}
body.ninja-guide .ninja-head p {
  color: #685b4d;
  font-size: 15.5px;
  margin: 6px 0 0;
  max-width: 780px;
  z-index: 1;
  position: relative;
}

.lesson-intro {
  margin: 22px 0 28px;
  max-width: 880px;
}
.lesson-intro p {
  margin: 10px 0;
  font-size: 15.5px;
}
.lesson-kicker {
  font-size: 12px;
  color: var(--ninja-red);
  letter-spacing: 2px;
  font-weight: 850;
  text-transform: uppercase;
}
.source-status {
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--ninja-muted);
}

/* Sticky Stage Navigation */
.lesson-nav {
  position: sticky;
  top: 104px;
  z-index: 25;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 6px;
  padding: 8px;
  background: rgba(255, 252, 247, 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--ninja-border);
  border-radius: 14px;
  box-shadow: 0 8px 24px rgba(50, 35, 21, 0.08);
  margin: 26px 0 36px;
}
.lesson-nav a {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 8px;
  font-weight: 750;
  font-size: 13.5px;
  color: #6b6154;
  border-radius: 9px;
  text-decoration: none;
  transition: all 0.2s ease;
}
.lesson-nav a span {
  font-size: 11px;
  font-weight: 800;
  color: var(--ninja-red);
  background: rgba(178, 77, 44, 0.1);
  padding: 1px 6px;
  border-radius: 4px;
}
.lesson-nav a:hover, .lesson-nav a[aria-current="location"] {
  background: #f4e6d8;
  color: var(--ninja-red-hover);
}
.lesson-nav a[aria-current="location"] {
  box-shadow: inset 0 0 0 1px rgba(178, 77, 44, 0.2);
}

.input-legend {
  background: #edf3ee;
  border: 1px solid #d0ddd3;
  border-radius: 14px;
  padding: 16px 22px;
  margin: 24px 0 38px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
}
.input-legend summary {
  font-weight: 750;
  color: #2b543f;
  cursor: pointer;
}
.input-legend p {
  font-size: 14px;
  margin: 12px 0 6px;
  color: #384e42;
}

/* Lesson Stage Sections */
body.ninja-guide .lesson-stage {
  margin-bottom: 64px;
  scroll-margin-top: 180px;
}
body.ninja-guide .lesson-stage > h3 {
  display: flex;
  gap: 14px;
  align-items: center;
  border-left: 0;
  padding: 0 0 16px;
  margin: 0 0 26px;
  border-bottom: 2px solid var(--ninja-border);
  font-family: inherit;
  font-size: 23px;
  color: var(--ninja-dark);
  letter-spacing: -0.01em;
}
body.ninja-guide .lesson-stage > h3:after {
  display: none;
}
.lesson-stage > h3 > span {
  font-size: 13px;
  display: grid;
  place-items: center;
  min-width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--ninja-red), var(--ninja-red-hover));
  color: white;
  font-weight: 850;
  letter-spacing: 1px;
  box-shadow: 0 3px 8px rgba(178, 77, 44, 0.3);
}

.stable-attack {
  padding: 22px 26px;
  border-left: 4px solid #3e6a54;
  background: #edf4ef;
  border-radius: 0 14px 14px 0;
  margin-bottom: 24px;
}
.stable-attack h4 {
  color: #2b543f;
  margin-bottom: 8px;
  font-size: 17px;
}

/* Move Grid & Cards */
.move-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  align-items: stretch;
}
.move-card {
  padding: 24px;
  background: var(--ninja-paper);
  border: 1px solid var(--ninja-border);
  border-top: 4px solid #d99a6c;
  border-radius: 14px;
  min-width: 0;
  box-shadow: 0 3px 12px rgba(60, 40, 20, 0.04);
  transition: transform 0.2s, box-shadow 0.2s;
}
.move-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(60, 40, 20, 0.08);
}
.move-card h4 {
  font-size: 18.5px;
  color: var(--ninja-red-hover);
  margin: 0 0 16px;
  line-height: 1.4;
  border-bottom: 1px dashed var(--ninja-border);
  padding-bottom: 10px;
}
.move-card p {
  font-size: 14.5px;
  margin: 12px 0 0;
  line-height: 1.85;
}
.move-card p b {
  font-size: 12.5px;
  font-weight: 850;
  color: #5d5246;
}
.move-card .move-input {
  padding: 12px 16px;
  background: #f6efe4;
  border: 1px solid #e7dcce;
  border-radius: 10px;
  color: #2e2821;
  font-weight: 700;
  font-size: 14.5px;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}
.move-input b {
  color: var(--ninja-red-hover) !important;
  font-size: 14.5px !important;
}

.lesson-reference {
  margin: 24px 0;
  border: 1px solid var(--ninja-border);
  border-radius: 14px;
  background: var(--ninja-paper);
  padding: 18px 24px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
}
.lesson-reference > summary {
  font-weight: 750;
  color: #655441;
}
.lesson-reference[open] > summary {
  margin-bottom: 20px;
}
.lesson-reference .card {
  box-shadow: none;
}
.lesson-stage h4 {
  scroll-margin-top: 180px;
  font-size: 18.5px;
  line-height: 1.5;
  margin: 24px 0 14px;
}
.lesson-stage .card {
  padding: 26px;
  margin: 18px 0;
}
.lesson-stage .card h4:first-child {
  margin-top: 0;
}
.lesson-reference h4 {
  color: var(--ninja-red-hover);
}

/* Tactics & Combos */
.tactic-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}
.tactic-grid article {
  background: var(--ninja-paper);
  padding: 22px 25px;
  border: 1px solid var(--ninja-border);
  border-radius: 14px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
}
.tactic-grid h4 {
  margin: 0 0 12px;
  color: #2b543f;
  font-size: 17px;
}
.tactic-grid p {
  font-size: 14.5px;
  line-height: 1.85;
}
.combo-list {
  padding-left: 22px;
}
.combo-list li {
  padding: 12px 0;
  border-bottom: 1px dashed var(--ninja-border);
}
.combo-list li:last-child {
  border-bottom: none;
}
.combo-list p {
  line-height: 2.1;
  font-size: 15px;
}
.combo-list small {
  color: var(--ninja-muted);
  font-size: 13px;
}

/* Practice Checklist Panel */
.practice-panel {
  padding: 28px 32px;
  background: var(--ninja-paper);
  border: 1px solid var(--ninja-border);
  border-radius: 16px;
  box-shadow: 0 4px 16px rgba(60, 40, 20, 0.05);
}
.practice-panel > p {
  font-size: 14.5px;
  color: var(--ninja-muted);
  margin-bottom: 18px;
}
.practice-panel label {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid #ebe2d4;
  cursor: pointer;
  font-size: 15px;
  line-height: 1.75;
  transition: background-color 0.15s;
}
.practice-panel label:hover {
  background-color: rgba(62, 106, 84, 0.04);
}
.practice-panel input {
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin-top: 4px;
  accent-color: #3e6a54;
}
.practice-panel label:has(input:checked) span {
  color: #3e6a54;
  text-decoration: line-through;
  opacity: 0.85;
}
.practice-panel button {
  font: inherit;
  font-size: 13.5px;
  font-weight: 750;
  padding: 10px 18px;
  margin-top: 20px;
  background: #f4ece0;
  border: 1px solid var(--ninja-border);
  border-radius: 9px;
  cursor: pointer;
  color: #554433;
  transition: all 0.2s;
}
.practice-panel button:hover {
  background: var(--ninja-border);
  color: var(--ninja-dark);
}

.practice-progress {
  margin: 14px 0 22px;
  padding: 15px 20px;
  border-radius: 12px;
  background: #eaf2ec;
  color: #2b543f;
  font-size: 13.5px;
  font-weight: 750;
  border: 1px solid #d2e2d6;
}
.practice-progress progress {
  display: block;
  width: 100%;
  height: 10px;
  margin-top: 10px;
  accent-color: #3e6a54;
  border-radius: 999px;
  overflow: hidden;
}

/* GIF Demo Container */
body.ninja-guide .gifdemo {
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--ninja-border);
  background: #1c1814;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
  margin: 22px 0;
}
body.ninja-guide .gifdemo img {
  width: 100%;
  height: auto;
  max-height: 640px;
  object-fit: contain;
  display: block;
  background: #1c1814;
}

/* Table styles */
.lesson-stage table {
  font-size: 14px;
}
.lesson-stage th, .lesson-stage td {
  padding: 12px 16px;
  text-align: left;
  min-width: 150px;
  border-bottom: 1px solid #e7ded2;
}
.lesson-stage th {
  background: #f2e6d6;
  font-weight: 750;
  color: #4b3d30;
}

/* Responsive adjustments */
@media(max-width: 768px) {
  body.ninja-guide .ninja-head { padding: 24px; }
  .move-grid, .tactic-grid { grid-template-columns: 1fr; }
  .lesson-nav { top: 101px; padding: 6px; gap: 3px; }
  .lesson-nav a { flex-direction: column; gap: 3px; font-size: 11.5px; padding: 8px 2px; }
  .lesson-nav a span { font-size: 10px; }
  .lesson-stage > h3 { font-size: 20px !important; align-items: flex-start !important; }
  .move-card { padding: 20px; }
  .practice-panel { padding: 22px; }
}

@media print {
  .lesson-nav, .practice-panel button { display: none; }
  .move-grid, .tactic-grid { display: block; }
  .move-card, .tactic-grid article { break-inside: avoid; margin-bottom: 14px; }
  .lesson-stage { scroll-margin-top: 0; }
  .lesson-reference { border: 0; }
  .practice-progress { border: 1px solid #bbb; background: white; color: #111; }
}