:root {
  --bg-deep:      #000000;
  --bg-card:      #232840;
  --bg-inner:     #2b3150;
  --border:       #3d4872;
  --border-glow:  #5567c0;
  --accent:       #6b8fff;
  --accent-bright:#90aaff;
  --accent-dim:   #3a4f9a;
  --gold:         #f0c84e;
  --gold-dim:     #8a6820;
  --red:          #f07070;
  --green:        #4de0a0;
  --text-primary: #eef1fa;
  --text-secondary:#aab2d4;
  --text-dim:     #6a759e;
  --shadow-blue:  0 0 28px rgba(107,143,255,0.15);
  --shadow-gold:  0 0 18px rgba(240,200,78,0.18);
  --radius-lg:    16px;
  --radius-md:    10px;
  --radius-sm:    6px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Apple SD Gothic Neo', sans-serif;
  background: #000000;
  min-height: 100vh;
  padding: 40px 20px 80px 20px;
  color: var(--text-primary);
}

/* ── Container (최외곽 박스 완전 제거) ── */
.container {
  max-width: 100%;
  width: 100%;
  margin: -50px auto 0;
  padding: 0 16px;
  background: transparent;
  border: none;
  border-radius: 0;
  box-shadow: none;
  position: relative;
  box-sizing: border-box;
}

/* ── Calculators Layout wrapper ── */
/* JS가 compareBanner.insertAdjacentHTML('beforebegin') 으로 삽입하므로
   계산기들이 .container 직접 자식으로 들어옴.
   flexbox로 항상 나란히 배치 */
.calculators-row,
#calculators-container {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  justify-content: center;
  flex-wrap: nowrap;
  width: 100%;
  max-width: 100%;
  margin: 0 0 20px;
  padding: 0;
  box-sizing: border-box;
}

@media (max-width: 768px) {
  .container { padding: 0; }
  .calculators-row,
  #calculators-container {
    flex-direction: column;
    align-items: center;
  }
  .calculators-row .calculator-wrapper,
  #calculators-container .calculator-wrapper {
    width: 100%;
    max-width: 480px;
    flex: none;
    min-width: 0;
  }
  .result-grid { grid-template-columns: 1fr !important; }
  .cmp-cards { flex-direction: column; }
  .cmp-vs { align-self: center; }
}

/* ── Heading ── */
h2 {
  text-align: center;
  margin-bottom: 24px;
  font-family: 'Apple SD Gothic Neo', serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.04em;
  text-shadow: 0 0 18px rgba(232,184,75,0.4), 0 2px 4px rgba(0,0,0,0.5);
  position: relative;
}

h2::after {
  content: '';
  display: block;
  width: 80px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  margin: 10px auto 0;
  border-radius: 2px;
}

/* ── Add Button ── */
#add-calculator-btn {
  display: block;
  margin: 0 0 16px auto;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--green);
  background: transparent;
  color: var(--green);
  font-size: 26px;
  line-height: 34px;
  text-align: center;
  cursor: pointer;
  user-select: none;
  transition: all 0.25s ease;
  box-shadow: 0 0 10px rgba(62,207,142,0.2);
}

#add-calculator-btn:hover {
  background: var(--green);
  color: #000;
  box-shadow: 0 0 20px rgba(62,207,142,0.45);
  transform: scale(1.1) rotate(90deg);
}

#add-calculator-btn:disabled {
  border-color: var(--text-dim);
  color: var(--text-dim);
  box-shadow: none;
  cursor: not-allowed;
  transform: none;
}

/* ── Calculator Wrapper (flex item) ── */
.calculator-wrapper {
  flex: 1 1 0;
  min-width: 280px;
  max-width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  background: var(--bg-inner);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.04), 0 4px 24px rgba(0,0,0,0.3);
  box-sizing: border-box;
  position: relative;
  transition: border-color 0.3s;
}

.calculator-wrapper:focus-within {
  border-color: var(--border-glow);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.05), var(--shadow-blue);
}

/* ── Calc Title ── */
.calc-title {
  font-weight: 700;
  font-size: 16px;
  margin-bottom: 24px;
  color: var(--accent-bright);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  position: relative;
  padding-right: 34px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.calc-title::before {
  content: '◆';
  color: var(--gold);
  font-size: 10px;
}

/* ── Remove Button ── */
.remove-calc-btn {
  position: absolute;
  top: 0;
  right: 0;
  width: 28px;
  height: 28px;
  border: 1px solid rgba(224,82,82,0.3);
  background: transparent;
  color: var(--red);
  font-size: 20px;
  line-height: 26px;
  text-align: center;
  cursor: pointer;
  user-select: none;
  font-weight: bold;
  padding: 0;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.remove-calc-btn:hover {
  background: rgba(224,82,82,0.15);
  border-color: var(--red);
  box-shadow: 0 0 10px rgba(224,82,82,0.3);
}

/* ── Amount Input ── */
.amount-input {
  width: 100%;
  padding: 12px 16px;
  font-size: 18px;
  font-family: 'Apple SD Gothic Neo', sans-serif;
  font-weight: 700;
  color: #111;
  background: #ffffff;
  border: 1px solid #c8cde0;
  border-radius: var(--radius-md);
  margin-bottom: 6px;
  box-sizing: border-box;
  appearance: textfield;
  -moz-appearance: textfield;
  transition: border-color 0.25s, box-shadow 0.25s;
  letter-spacing: 0.03em;
}

.amount-input::placeholder { color: #aaa; font-weight: 400; font-size: 14px; }
.amount-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(91,124,255,0.18);
}

.amount-input::-webkit-outer-spin-button,
.amount-input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }

/* ── Amount Units ── */
.amount-units {
  font-size: 12px;
  color: var(--gold);
  margin-bottom: 16px;
  min-height: 18px;
  letter-spacing: 0.04em;
  font-weight: 500;
}

/* ── Options Group ── */
.options-group {
  display: flex;
  gap: 16px;
  align-items: flex-end;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.options-group > div { flex: 1 1 140px; }

.options-group label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  color: var(--text-secondary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 6px;
  cursor: default;
}

.options-group label strong { color: var(--text-secondary); font-weight: 700; }

/* ── Select ── */
select {
  width: 100%;
  padding: 10px 36px 10px 12px;
  font-size: 13px;
  font-family: 'Apple SD Gothic Neo', sans-serif;
  color: #111;
  background-color: #ffffff;
  background-image: url("data:image/svg+xml;utf8,<svg fill='%233a5ae0' height='20' viewBox='0 0 24 24' width='20' xmlns='http://www.w3.org/2000/svg'><path d='M7 10l5 5 5-5z'/></svg>");
  background-repeat: no-repeat;
  background-position: right 8px center;
  background-size: 18px;
  border: 1px solid #c8cde0;
  border-radius: var(--radius-sm);
  box-sizing: border-box;
  appearance: none;
  cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s;
}

select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(91,124,255,0.18);
}

select option { background: #fff; color: #111; }

/* ── Calc Button ── */
button.calc-btn {
  width: 100%;
  padding: 13px;
  font-size: 15px;
  font-family: 'Apple SD Gothic Neo', sans-serif;
  font-weight: 700;
  letter-spacing: 0.08em;
  border: 1px solid var(--accent);
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--accent-dim) 0%, #1e2a6a 100%);
  color: var(--accent-bright);
  cursor: pointer;
  margin-bottom: 20px;
  user-select: none;
  position: relative;
  overflow: hidden;
  transition: all 0.25s ease;
}

button.calc-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent) 0%, #3a5ae0 100%);
  opacity: 0;
  transition: opacity 0.25s;
}

button.calc-btn:hover {
  color: #fff;
  box-shadow: 0 0 20px rgba(91,124,255,0.4);
  transform: translateY(-1px);
}

button.calc-btn:hover::before { opacity: 1; }
button.calc-btn span { position: relative; z-index: 1; }

/* ── Error ── */
.error-msg {
  color: var(--red) !important;
  font-weight: 700;
  font-size: 13px;
  min-height: 18px;
  margin-bottom: 4px;
}

/* ── Result Grid ── */
.result-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
  animation: fadeUp 0.35s ease both;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Result Box (흰색 배경) ── */
.box {
  background: #ffffff;
  border: 1px solid #d8ddf0;
  border-radius: var(--radius-md);
  padding: 18px;
  box-sizing: border-box;
  word-break: break-word;
  transition: border-color 0.2s;
}

.box:hover { border-color: var(--accent); }

.box h3 {
  margin-top: 0;
  margin-bottom: 14px;
  color: #1a2050;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.05em;
  border-bottom: 1px solid #e0e4f4;
  padding-bottom: 10px;
}

.box p {
  font-size: 13px;
  color: #444;
  margin-bottom: 7px;
  line-height: 1.6;
}

.box p strong {
  color: #111;
  font-weight: 600;
}

.box h4 {
  font-size: 13px;
  color: var(--accent);
  margin: 16px 0 8px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

/* ── Stat Rows (result layout) ── */
.stat-rows {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.stat-row {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 7px 0;
  border-bottom: 1px solid #e8eaf5;
}

.stat-row:last-child { border-bottom: none; }

.stat-label {
  font-size: 12px;
  color: #777;
  letter-spacing: 0.04em;
}

.stat-value {
  font-size: 13px;
  color: #222;
  font-weight: 600;
  text-align: right;
  width: 100%;
  word-break: break-all;
}

.stat-rate { color: #3a5ae0; }
.stat-fee  { color: #d03030; font-size: 12px; }

.stat-divider {
  height: 1px;
  background: #c8cde8;
  margin: 4px 0;
  opacity: 0.8;
}

.stat-row--highlight .stat-label {
  color: #444;
  font-weight: 700;
  font-size: 13px;
}

.stat-net {
  color: #0a8c50 !important;
  font-size: 15px !important;
  font-weight: 700 !important;
}

.stat-note {
  font-size: 11px !important;
  color: #888 !important;
  margin-top: 8px !important;
  margin-bottom: 0 !important;
  padding: 0 !important;
  border: none !important;
  background: none !important;
}

.stat-warn {
  font-size: 12px !important;
  color: #c03030 !important;
  background: rgba(200,50,50,0.06) !important;
  border: 1px solid rgba(200,50,50,0.25) !important;
  border-radius: var(--radius-sm) !important;
  padding: 6px 10px !important;
  margin-top: 8px !important;
  margin-bottom: 0 !important;
}

/* ── Split Outer Row (수작 박스 나란히) ── */
.split-outer-row {
  display: flex;
  gap: 16px;
  margin: 16px 0 0;
  align-items: flex-start;
  justify-content: center;
  width: 100%;
  box-sizing: border-box;
}

.split-outer-slot {
  flex: 1 1 0;
  min-width: 280px;
  max-width: 100%;
}

/* ── Split Outer Box (각 계산기 수작 컨테이너) ── */
.split-outer-box {
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-lg);
  overflow: hidden;
  animation: fadeUp 0.3s ease both;
}

.split-outer-header {
  background: linear-gradient(135deg, rgba(107,143,255,0.2), rgba(43,49,80,0.8));
  padding: 11px 18px;
  font-size: 13px;
  font-weight: 700;
  color: var(--accent-bright);
  letter-spacing: 0.04em;
  border-bottom: 1px solid var(--border);
}

.split-outer-body {
  background: var(--bg-inner);
  padding: 14px 16px;
}

.split-outer-body .split-section__title { display: none; }

/* ── 수작 카드 그리드: 반응형 (너비 줄면 1개씩 내려감) ── */
.split-cards-grid {
  display: grid;
  /* 카드 최소 180px, 공간 되면 최대 4열 */
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 10px;
  align-items: start;
}

.split-card {
  /* flex 고정 제거 — grid가 너비 관리 */
  width: auto;
  background: rgba(0,0,0,0.35);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color 0.2s;
}

/* ── 비교 배너 기호 컬럼 ── */
.cmp-symbols {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex-shrink: 0;
  align-items: center;
  align-self: stretch;
}

.cmp-sym-spacer {
  /* cmp-col__title 높이에 맞춤 */
  height: 32px;
  flex-shrink: 0;
  margin-bottom: 0;
}

.cmp-sym {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  /* 고정 높이 제거 — flex: 1로 각 cmp-item 높이에 맞게 늘어남 */
  flex: 1;
  font-size: 18px;
  font-weight: 900;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

/* 기호 컬럼이 cmp-col 높이와 동일하게 stretch */
.cmp-body--lr {
  background: rgba(43,49,80,0.4);
  display: flex;
  gap: 8px;
  padding: 16px 18px;
  align-items: stretch;
}

.cmp-sym--eq { color: var(--text-dim);      background: rgba(255,255,255,0.04); }
.cmp-sym--gt { color: var(--green);         background: rgba(77,224,160,0.10);  }
.cmp-sym--lt { color: var(--accent-bright); background: rgba(107,143,255,0.10); }

@media (max-width: 768px) {
  .split-outer-row  { flex-direction: column; align-items: center; }
  .split-outer-slot { flex: none; width: 100%; max-width: 480px; min-width: 0; }
  .split-cards-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
  .cmp-body--lr  { flex-direction: column; }
  .cmp-symbols   { flex-direction: row; height: auto; }
  .cmp-sym-spacer { display: none; }
  .cmp-sym       { flex: 1; height: 28px; }
}

.split-section__title {
  font-size: 12px;
  font-weight: 700;
  color: var(--accent-bright);
  letter-spacing: 0.05em;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

/* split-cards-grid, split-card → split-outer-row 섹션에서 정의됨 */

.split-card:hover { border-color: var(--border-glow); }

.split-card__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 7px 11px;
  background: rgba(107,143,255,0.12);
  border-bottom: 1px solid var(--border);
  gap: 6px;
}

.split-card__amount {
  font-size: 12px;
  font-weight: 700;
  color: var(--gold);
  white-space: nowrap;
}

.split-card__count {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  white-space: nowrap;
}

.split-plus {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-size: 9px;
  font-weight: 800;
  padding: 1px 4px;
  border-radius: 3px;
  margin: 0 1px;
  vertical-align: middle;
}

.split-card__body {
  padding: 8px 11px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.split-card__row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 6px;
}

.split-card__row--net {
  padding-top: 6px;
  border-top: 1px solid var(--border);
  margin-top: 2px;
}

.split-card__label {
  font-size: 10px;
  color: var(--text-dim);
  white-space: nowrap;
}

.split-card__row--net .split-card__label {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-secondary);
}

.split-card__val {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  text-align: right;
}

.split-card__val--fee  { color: var(--red); }
.split-card__val--left { color: var(--accent-bright); }
.split-card__val--net  {
  font-size: 13px !important;
  font-weight: 700 !important;
  color: var(--green) !important;
}



/* ── 수작 뱃지 (타이틀 옆) ── */
.split-badge {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 20px;
  background: rgba(240,200,78,0.15);
  border: 1px solid var(--gold);
  color: var(--gold);
  letter-spacing: 0.04em;
  margin-left: 6px;
  vertical-align: middle;
  animation: fadeUp 0.2s ease both;
}

/* ── Generic Tables (fee rate chart) ── */

/* ── Fee Diff ── */
#fee-diff {
  margin-top: 14px;
  font-weight: 700;
  font-size: 15px;
  color: var(--text-secondary);
  text-align: center;
  min-height: 24px;
}

/* ── Net Compare Banner ── */
.net-compare-banner {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-glow);
  animation: fadeUp 0.4s ease both;
  margin-top: 20px;
  margin-bottom: 16px;
}

.cmp-header {
  background: linear-gradient(135deg, var(--accent-dim), #2a3a7a);
  padding: 11px 18px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-bright);
}

/* 좌우 두 컬럼 — calculators-row 와 동일한 gap */
.cmp-body--lr {
  background: rgba(43,49,80,0.4);
  display: flex;
  gap: 24px;
  padding: 16px 18px;
  align-items: flex-start;
}

/* 각 컬럼: 비교 배너는 유연하게 늘어남 */
.cmp-col {
  flex: 1 1 0;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.cmp-col__title {
  font-size: 13px;
  font-weight: 700;
  color: var(--accent-bright);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-glow);
  margin-bottom: 2px;
  display: flex;
  align-items: center;
  gap: 6px;
  height: 32px;
  box-sizing: border-box;
  flex-shrink: 0;
}

.cmp-col__title::before {
  content: '◆';
  color: var(--gold);
  font-size: 9px;
}

/* 각 항목 — flex:1로 기호와 높이 공유 */
.cmp-item {
  flex: 1;
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  transition: border-color 0.2s, background 0.2s;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.cmp-item--win {
  background: rgba(77,224,160,0.07);
  border-color: rgba(77,224,160,0.35);
}

.cmp-item--lose {
  opacity: 0.55;
}

.cmp-item--empty {
  flex: 1;
  border: 1px solid transparent !important;
  background: transparent !important;
  padding: 10px 14px;
  pointer-events: none;
}

.cmp-item--split {
  border-style: dashed;
}

.cmp-item--split.cmp-item--win {
  border-color: rgba(240,200,78,0.5);
  background: rgba(240,200,78,0.06);
}

.cmp-item__label {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-dim);
  letter-spacing: 0.04em;
  margin-bottom: 5px;
}

.cmp-item--win .cmp-item__label  { color: var(--green); }
.cmp-item--split.cmp-item--win .cmp-item__label { color: var(--gold); }

.cmp-item__net {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.cmp-item--win .cmp-item__net  { color: var(--green); }

.cmp-badge {
  font-size: 10px;
  font-weight: 800;
  padding: 2px 6px;
  border-radius: 20px;
  background: var(--green);
  color: #0a1a10;
  letter-spacing: 0.03em;
  white-space: nowrap;
}

.cmp-item--split.cmp-item--win .cmp-badge {
  background: var(--gold);
  color: #1a0e00;
}

/* Legacy */
.fee-compare-msg { display: none; }
.cmp-card { display: none; }
/* .cmp-row, .cmp-cell, .cmp-vs, .cmp-diff, .cmp-section, .cmp-divider, .cmp-body — legacy, removed */

@media (max-width: 768px) {
  .cmp-body--lr { flex-direction: column; }
}

/* ── Fee Rate Table ── */
.fee-table-wrap {
  margin-top: 20px;
  animation: fadeUp 0.3s ease both;
}

.fee-rate-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
  background: #ffffff;
  border: 1px solid #d0d6ea;
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.fee-rate-table th {
  background: #eef1fb;
  color: #2a3a7a;
  font-weight: 700;
  padding: 9px 12px;
  text-align: center;
  border: 1px solid #d0d6ea;
  letter-spacing: 0.03em;
}

.fee-rate-table td {
  padding: 7px 12px;
  text-align: center;
  color: #222;
  border: 1px solid #d0d6ea;
  background: #ffffff;
}

.fee-rate-table tr:hover td {
  background: #f0f4ff;
}

/* ── Guide Text ── */
.guide-text {
  margin-top: 20px;
  padding: 18px 20px;
  background: #ffffff;
  border: 1px solid #d0d6ea;
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-md);
}

.guide-title {
  font-size: 13px;
  color: #c04000;
  font-weight: 700;
  margin-bottom: 10px;
}

.guide-text ul {
  padding-left: 0;
  list-style: none;
  margin: 0;
}

.guide-text ul li {
  font-size: 12px;
  color: #333;
  line-height: 1.85;
  margin-bottom: 1px;
  position: relative;
  padding-left: 14px;
}

.guide-text ul li::before {
  content: '›';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

.guide-text ul li strong { color: #111; }

/* ── Split No Leftover ── */
.split-no-leftover {
  color: var(--text-dim);
  font-size: 12px;
}

/* ── Warning text (express tier up) ── */
p[style*="d9534f"] {
  color: var(--red) !important;
  background: rgba(224,82,82,0.08);
  border: 1px solid rgba(224,82,82,0.25);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-size: 13px;
}

/* ── Sponsor Container ── */
#sponsor-container {
  position: fixed;
  bottom: 100px;
  right: 30px;
  width: 280px;
  background: var(--bg-card);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-blue);
  padding: 20px;
  display: none;
  z-index: 1000;
  font-size: 14px;
  color: var(--text-secondary);
}

#sponsor-container strong {
  display: block;
  margin-bottom: 10px;
  font-weight: 700;
  color: var(--accent-bright);
  text-align: center;
}

/* ── HR ── */
hr {
  border: none !important;
  border-top: 1px solid var(--border) !important;
  margin: 3rem auto !important;
  width: 90% !important;
  opacity: 0.5;
}

/* ── ul inside box ── */
ul {
  padding-left: 18px;
  margin-top: 5px;
  margin-bottom: 5px;
}


/* ── Box Toggle Buttons ── */
.box-toggles {
  display: flex;
  gap: 8px;
  margin-top: 0;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.box-toggle-btn {
  flex: 1;
  padding: 7px 12px;
  font-size: 12px;
  font-family: 'Apple SD Gothic Neo', sans-serif;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  user-select: none;
  transition: all 0.2s ease;
  border: 1px solid var(--border);
  background: var(--bg-deep);
  color: var(--text-dim);
  letter-spacing: 0.02em;
}

.box-toggle-btn.active {
  background: rgba(107,143,255,0.15);
  border-color: var(--accent);
  color: var(--accent-bright);
}

.box-toggle-btn:hover {
  border-color: var(--accent);
  color: var(--accent-bright);
}

.box-toggle-btn.active:hover {
  background: rgba(107,143,255,0.08);
  border-color: var(--border-glow);
  color: var(--text-secondary);
}

.toggle-state {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 20px;
  margin-left: 5px;
  background: rgba(255,255,255,0.15);
  vertical-align: middle;
}

.box-toggle-btn.active .toggle-state {
  background: rgba(107,143,255,0.3);
  color: #fff;
}

.box-toggle-btn:not(.active) .toggle-state {
  background: rgba(255,255,255,0.1);
  color: var(--text-dim);
}

/* ── 독립 사용방법 박스 (하단 고정) ── */
.guide-box-standalone {
  width: 85%;
  max-width: 85%;
  margin: 20px auto 0;
}