/* ============================================
   DAYS CALCULATOR — page-specific styles
   Accent: cyan / sky — Date & Time category
   Inherits variables from css/styles.css
   ============================================ */

/* ---- Page wrapper ---- */
.calc-page {
  position: relative; z-index: 1;
  max-width: 1320px; margin: 0 auto;
  padding: 48px 24px 80px;
  display: grid;
  grid-template-columns: 1fr 460px;
  grid-template-rows: auto auto;
  gap: 48px; align-items: start;
}
.calc-page-info {
  position: static;
}

/* Breadcrumb */
.calc-breadcrumb {
  display: flex; align-items: center; gap: 8px;
  font-size: 13px; color: var(--text-dim); margin-bottom: 20px; flex-wrap: wrap;
}
.calc-breadcrumb a { color: var(--text-dim); transition: color var(--transition); }
.calc-breadcrumb a:hover { color: #06b6d4; }
.calc-breadcrumb i { font-size: 10px; }

/* Category tag — cyan for Date & Time */
.calc-page-tag {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 4px 12px 4px 8px;
  background: rgba(6,182,212,0.12); border: 1px solid rgba(6,182,212,0.28);
  border-radius: 100px; font-size: 12px; font-weight: 600; color: #06b6d4;
  text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 18px;
}
body.light-theme .calc-page-tag {
  background: rgba(8,145,178,0.08); border-color: rgba(8,145,178,0.22); color: #0891b2;
}

/* Page title */
.calc-page-title {
  font-family: 'Bricolage Grotesque', sans-serif;
  font-size: clamp(28px, 3.2vw, 46px); font-weight: 800;
  line-height: 1.1; letter-spacing: -1.5px; color: var(--text); margin-bottom: 16px;
}
.calc-page-title span { color: #06b6d4; }
body.light-theme .calc-page-title span { color: #0891b2; }

.calc-page-desc { font-size: 16px; line-height: 1.75; color: var(--text-muted); margin-bottom: 32px; }

/* Feature pills */
.calc-features { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 40px; }
.calc-feature-pill {
  display: inline-flex; align-items: center; gap: 6px; padding: 6px 12px;
  background: var(--surface); border: 1px solid var(--border); border-radius: 100px;
  font-size: 13px; font-weight: 500; color: var(--text-muted);
}
.calc-feature-pill i { color: #06b6d4; font-size: 12px; }
body.light-theme .calc-feature-pill i { color: #0891b2; }

.calc-page-content {
  margin-top: 0;
  min-width: 0;
}

.calc-page-content.fade-up {
  opacity: 1;
  transform: none;
  animation: none;
  transition: none;
  visibility: visible;
}
.content-block { margin-bottom: 40px; }
.content-block h2 {
  font-family: 'Bricolage Grotesque', sans-serif; font-size: 22px; font-weight: 700;
  letter-spacing: -0.5px; color: var(--text); margin-bottom: 14px;
}
.content-block p { font-size: 15px; line-height: 1.8; color: var(--text-muted); margin-bottom: 10px; }
.content-block strong { color: var(--text); font-weight: 600; }

/* ============================================
   MODE CARDS (When to use each mode)
   ============================================ */
.mode-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 18px 0; }
.mode-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
  transition: border-color var(--transition);
}
.mode-card:hover { border-color: var(--border-hover); }
.mode-between    { border-top: 3px solid #06b6d4; }
.mode-addsubtract{ border-top: 3px solid #8b5cf6; }
body.light-theme .mode-between     { border-top-color: #0891b2; }
body.light-theme .mode-addsubtract { border-top-color: #7c3aed; }
.mode-card-header {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 16px; background: var(--bg-3); border-bottom: 1px solid var(--border);
}
.mode-icon {
  flex-shrink: 0; width: 32px; height: 32px; border-radius: 8px;
  display: flex; align-items: center; justify-content: center; font-size: 14px;
}
.mode-between     .mode-icon { background: rgba(6,182,212,0.12);  color: #06b6d4; }
.mode-addsubtract .mode-icon { background: rgba(139,92,246,0.12); color: #8b5cf6; }
body.light-theme .mode-between     .mode-icon { background: rgba(8,145,178,0.08);  color: #0891b2; }
body.light-theme .mode-addsubtract .mode-icon { background: rgba(124,58,237,0.08); color: #7c3aed; }
.mode-card-header strong { font-size: 13px; font-weight: 700; color: var(--text); }
.mode-card > p { font-size: 13px; line-height: 1.65; color: var(--text-muted); padding: 12px 16px 8px; margin: 0; }
.mode-list { list-style: none; padding: 0 16px 14px; margin: 0; display: flex; flex-direction: column; gap: 6px; }
.mode-list li {
  font-size: 12px; line-height: 1.5; color: var(--text-dim);
  padding-left: 14px; position: relative;
}
.mode-list li::before {
  content: '›'; position: absolute; left: 0; color: #06b6d4; font-weight: 700;
}
body.light-theme .mode-list li::before { color: #0891b2; }

/* ============================================
   COUNTING TABLE
   ============================================ */
.counting-table-wrap {
  overflow-x: auto; border: 1px solid var(--border);
  border-radius: var(--radius-sm); margin: 16px 0;
}
.counting-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.counting-table thead tr { background: var(--bg-3); }
.counting-table th {
  padding: 10px 14px; text-align: left;
  font-family: 'Bricolage Grotesque', sans-serif; font-size: 11px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--text-dim); border-bottom: 1px solid var(--border);
}
.counting-table td { padding: 9px 14px; color: var(--text-muted); border-bottom: 1px solid var(--border); }
.counting-table tbody tr:last-child td { border-bottom: none; }
.counting-table tbody tr:nth-child(even) { background: var(--bg-2); }
.counting-table td:first-child { font-weight: 600; color: var(--text); }

/* ============================================
   LEAP CARDS
   ============================================ */
.leap-cards { display: flex; flex-direction: column; gap: 10px; margin: 16px 0; }
.leap-card {
  display: flex; gap: 14px; padding: 14px 16px;
  background: var(--surface); border: 1px solid var(--border);
  border-left: 3px solid #06b6d4; border-radius: var(--radius-sm);
  transition: border-color var(--transition);
}
body.light-theme .leap-card { border-left-color: #0891b2; }
.leap-icon {
  flex-shrink: 0; width: 32px; height: 32px; border-radius: 8px;
  background: rgba(6,182,212,0.12); display: flex; align-items: center;
  justify-content: center; font-size: 14px; color: #06b6d4;
}
body.light-theme .leap-icon { background: rgba(8,145,178,0.08); color: #0891b2; }
.leap-body { display: flex; flex-direction: column; gap: 4px; }
.leap-body strong { font-size: 13px; font-weight: 700; color: var(--text); }
.leap-body span   { font-size: 12px; line-height: 1.6; color: var(--text-dim); }

/* FAQ */
.faq-list { display: flex; flex-direction: column; gap: 8px; }
.faq-item { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); overflow: hidden; transition: border-color var(--transition); }
.faq-item:hover { border-color: var(--border-hover); }
.faq-question {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 14px 18px; background: transparent; border: none; cursor: pointer;
  font-family: 'DM Sans', sans-serif; font-size: 15px; font-weight: 600;
  color: var(--text); text-align: left; transition: color var(--transition);
}
.faq-question:hover { color: #06b6d4; }
body.light-theme .faq-question:hover { color: #0891b2; }
.faq-question i { font-size: 12px; color: var(--text-dim); transition: transform var(--transition), color var(--transition); flex-shrink: 0; }
.faq-item.open .faq-question i { transform: rotate(180deg); color: #06b6d4; }
body.light-theme .faq-item.open .faq-question i { color: #0891b2; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s ease, padding 0.35s ease; font-size: 14px; line-height: 1.75; color: var(--text-muted); padding: 0 18px; }
.faq-item.open .faq-answer { max-height: 500px; padding: 0 18px 16px; }

/* Also search */
.also-search-grid { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.also-search-chip {
  display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px;
  background: var(--surface); border: 1px solid var(--border); border-radius: 100px;
  font-size: 13px; font-weight: 500; color: var(--text-muted); white-space: nowrap;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}
.also-search-chip:hover { background: rgba(6,182,212,0.1); border-color: #06b6d4; color: #06b6d4; }
body.light-theme .also-search-chip:hover { background: rgba(8,145,178,0.07); border-color: #0891b2; color: #0891b2; }

/* ============================================
   CALC CARD
   ============================================ */
.calc-panel { position: sticky; top: calc(var(--header-h) + 24px); }
.calc-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  overflow: hidden; box-shadow: var(--shadow-lg), 0 0 60px rgba(6,182,212,0.07);
}
.calc-card-header {
  padding: 20px 24px 18px; background: var(--bg-2); border-bottom: 1px solid var(--border);
  display: none; align-items: center; gap: 12px;
}
@media (max-width: 1024px) { .calc-card-header { display: flex; } }
.calc-card-icon {
  width: 40px; height: 40px; border-radius: 10px;
  background: rgba(6,182,212,0.12); border: 1px solid rgba(6,182,212,0.25);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; color: #06b6d4; flex-shrink: 0;
}
body.light-theme .calc-card-icon { background: rgba(8,145,178,0.08); border-color: rgba(8,145,178,0.22); color: #0891b2; }
.calc-card-header-text h3 { font-family: 'Bricolage Grotesque', sans-serif; font-size: 16px; font-weight: 700; color: var(--text); margin-bottom: 2px; }
.calc-card-header-text p  { font-size: 12px; color: var(--text-dim); }
.calc-card-body { padding: 24px; }

/* Form */
.form-group { margin-bottom: 16px; }
.form-label {
  display: flex; align-items: center; gap: 7px;
  font-size: 12px; font-weight: 600; color: var(--text-muted);
  margin-bottom: 8px; text-transform: uppercase; letter-spacing: 0.05em;
}
.form-label i { color: #06b6d4; font-size: 12px; }
body.light-theme .form-label i { color: #0891b2; }

/* Segmented toggle — mode switcher */
.segmented-toggle {
  display: flex; background: var(--bg-3); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 3px; gap: 3px;
}
.seg-opt {
  flex: 1; padding: 9px 10px; border: none; border-radius: calc(var(--radius-sm) - 2px);
  background: transparent; font-family: 'DM Sans', sans-serif; font-size: 13px; font-weight: 600;
  color: var(--text-muted); cursor: pointer;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition);
  display: flex; align-items: center; justify-content: center; gap: 7px; white-space: nowrap;
}
.seg-opt:hover { color: var(--text); }
.seg-opt.active {
  background: var(--surface); color: #06b6d4;
  box-shadow: 0 1px 4px rgba(0,0,0,0.12);
}
body.light-theme .seg-opt.active { color: #0891b2; }
/* Add op: cyan active; Subtract op: red active */
.seg-add.active      { color: #06b6d4; }
.seg-subtract.active { color: #f87171; background: var(--surface); box-shadow: 0 1px 4px rgba(0,0,0,0.12); }
body.light-theme .seg-add.active      { color: #0891b2; }
body.light-theme .seg-subtract.active { color: #ef4444; }

.form-divider { height: 1px; background: var(--border); margin: 16px 0; }

/* Date inputs */
.form-input {
  width: 100%; padding: 11px 14px; background: var(--bg-2); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text); font-family: 'DM Sans', sans-serif;
  font-size: 15px; outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  appearance: none; -webkit-appearance: none;
  color-scheme: dark;
}
body.light-theme .form-input { color-scheme: light; }
.form-input:hover { border-color: var(--border-hover); }
.form-input:focus {
  border-color: #06b6d4;
  box-shadow: 0 0 0 3px rgba(6,182,212,0.15);
  background: var(--surface);
}
body.light-theme .form-input:focus { border-color: #0891b2; box-shadow: 0 0 0 3px rgba(8,145,178,0.1); }
.form-input.error { border-color: var(--pink) !important; box-shadow: 0 0 0 3px var(--pink-dim) !important; }
.date-input { cursor: pointer; }

/* Date input row with Today button */
.date-input-row { display: flex; gap: 8px; align-items: stretch; }
.date-input-row .date-input { flex: 1; }
.today-btn {
  flex-shrink: 0; display: flex; align-items: center; gap: 6px;
  padding: 10px 14px; border-radius: var(--radius-sm);
  background: rgba(6,182,212,0.12); border: 1px solid rgba(6,182,212,0.3);
  color: #06b6d4; font-family: 'DM Sans', sans-serif; font-size: 13px; font-weight: 600;
  cursor: pointer; white-space: nowrap;
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
}
body.light-theme .today-btn { background: rgba(8,145,178,0.07); border-color: rgba(8,145,178,0.25); color: #0891b2; }
.today-btn:hover { background: rgba(6,182,212,0.22); box-shadow: 0 2px 10px rgba(6,182,212,0.2); }
body.light-theme .today-btn:hover { background: rgba(8,145,178,0.14); }
.today-btn:active { transform: scale(0.97); }
.today-btn.flash { color: #10b981; border-color: #10b981; background: rgba(16,185,129,0.1); }

/* ============================================
   DATE ARROW DIVIDER (between start & end)
   ============================================ */
.date-arrow-divider {
  display: flex; align-items: center; gap: 10px; margin: 8px 0;
}
.date-arrow-line { flex: 1; height: 1px; background: var(--border); }
.date-arrow-badge {
  flex-shrink: 0; width: 28px; height: 28px; border-radius: 50%;
  background: rgba(6,182,212,0.1); border: 1px solid rgba(6,182,212,0.25);
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; color: #06b6d4;
}
body.light-theme .date-arrow-badge { background: rgba(8,145,178,0.07); border-color: rgba(8,145,178,0.22); color: #0891b2; }

/* ============================================
   DURATION GRID (2×2 for add/subtract)
   ============================================ */
.duration-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px;
  margin-top: 10px; margin-bottom: 4px;
}
.duration-field { display: flex; flex-direction: column; gap: 5px; }
.dur-label {
  font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--text-dim); text-align: center;
}
.dur-input-wrap {
  display: flex; align-items: center; gap: 0;
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: var(--radius-sm); overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.dur-input-wrap:focus-within {
  border-color: #06b6d4; box-shadow: 0 0 0 3px rgba(6,182,212,0.15);
}
body.light-theme .dur-input-wrap:focus-within { border-color: #0891b2; box-shadow: 0 0 0 3px rgba(8,145,178,0.1); }
.dur-step {
  flex-shrink: 0; width: 32px; min-height: 40px; border: none;
  background: transparent; color: var(--text-dim); font-size: 15px; font-weight: 700;
  cursor: pointer; transition: background var(--transition), color var(--transition);
  display: flex; align-items: center; justify-content: center;
}
.dur-step:hover { background: rgba(6,182,212,0.14); color: #06b6d4; }
body.light-theme .dur-step:hover { background: rgba(8,145,178,0.09); color: #0891b2; }
.dur-step:active { transform: scale(0.9); }
.dur-input {
  flex: 1; border: none; background: transparent; color: var(--text);
  font-family: 'Bricolage Grotesque', sans-serif; font-size: 16px; font-weight: 700;
  text-align: center; padding: 9px 4px; outline: none; min-width: 0;
  -moz-appearance: textfield;
}
.dur-input::-webkit-outer-spin-button,
.dur-input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }

.hidden { display: none !important; }

/* Calculate button */
.calc-btn-primary {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  width: 100%; padding: 14px 20px; background: var(--accent); color: #0c0f1a;
  font-family: 'Bricolage Grotesque', sans-serif; font-size: 16px; font-weight: 700;
  border: none; border-radius: var(--radius-sm); cursor: pointer;
  transition: opacity var(--transition), transform var(--transition), box-shadow var(--transition);
  position: relative; overflow: hidden;
}
body.light-theme .calc-btn-primary { color: #fff; }
.calc-btn-primary::after { content: ''; position: absolute; inset: 0; background: #000; opacity: 0; transition: opacity 0.15s; }
.calc-btn-primary:hover { box-shadow: 0 4px 20px var(--accent-glow); }
.calc-btn-primary:hover::after { opacity: 0.06; }
.calc-btn-primary:active { transform: scale(0.98); }

/* Error toast */
.calc-error {
  display: flex; align-items: center; gap: 10px; padding: 12px 16px;
  background: var(--pink-dim); border: 1px solid rgba(251,113,133,0.3);
  border-radius: var(--radius-sm); color: var(--pink); font-size: 14px; font-weight: 500;
  margin-top: 12px; opacity: 0; transform: translateY(-6px);
  transition: opacity 0.3s ease, transform 0.3s ease; pointer-events: none;
}
.calc-error.show { opacity: 1; transform: translateY(0); pointer-events: auto; }

/* ============================================
   RESULT CARD
   ============================================ */
.result-card {
  margin-top: 20px; background: var(--bg-2); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
  display: none; opacity: 0; transform: translateY(8px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.result-card.show { display: block; opacity: 1; transform: translateY(0); }

/* Hero */
.result-hero {
  padding: 20px 24px 18px;
  background: linear-gradient(135deg, rgba(6,182,212,0.08) 0%, transparent 60%);
  border-bottom: 1px solid var(--border);
}
.result-hero-label {
  font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em;
  color: #06b6d4; margin-bottom: 6px;
}
body.light-theme .result-hero-label { color: #0891b2; }
.result-days-main {
  font-family: 'Bricolage Grotesque', sans-serif;
  font-size: 48px; font-weight: 800; letter-spacing: -2px; color: var(--text); line-height: 1;
}
.result-days-sub {
  font-size: 16px; color: #06b6d4; font-weight: 600; margin-top: 6px;
}
body.light-theme .result-days-sub { color: #0891b2; }
.result-direction {
  margin-top: 8px; font-size: 13px; font-weight: 600; color: var(--text-dim);
  display: flex; align-items: center; gap: 6px;
}
.result-direction::before {
  content: ''; display: inline-block; width: 7px; height: 7px;
  border-radius: 50%; background: #06b6d4; flex-shrink: 0;
}
body.light-theme .result-direction::before { background: #0891b2; }

/* ============================================
   BREAKDOWN 6-CELL GRID
   ============================================ */
.breakdown-section {
  background: var(--surface); border-bottom: 1px solid var(--border);
}
.breakdown-title {
  display: flex; align-items: center; gap: 8px; padding: 12px 18px;
  font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--text-dim); border-bottom: 1px solid var(--border); background: var(--bg-3);
}
.breakdown-title i { color: #06b6d4; }
body.light-theme .breakdown-title i { color: #0891b2; }

.breakdown-grid6 {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 1px; background: var(--border);
}
.bdcell {
  background: var(--surface); padding: 13px 10px;
  display: flex; flex-direction: column; align-items: center; gap: 3px;
  transition: background var(--transition);
}
.bdcell:hover { background: var(--bg-3); }
.bdval {
  font-family: 'Bricolage Grotesque', sans-serif; font-size: 20px; font-weight: 800;
  letter-spacing: -0.5px; color: var(--text);
}
.bdlabel { font-size: 10px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-dim); }

/* ============================================
   WEEKDAY SPLIT
   ============================================ */
.weekday-section {
  background: var(--surface); border-bottom: 1px solid var(--border);
}
.weekday-title {
  display: flex; align-items: center; gap: 8px; padding: 12px 18px;
  font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--text-dim); border-bottom: 1px solid var(--border); background: var(--bg-3);
}
.weekday-title i { color: #06b6d4; }
body.light-theme .weekday-title i { color: #0891b2; }
.weekday-row { display: flex; align-items: stretch; }
.weekday-cell {
  flex: 1; padding: 16px 18px; display: flex; flex-direction: column;
  align-items: center; gap: 6px;
}
.weekday-work { background: rgba(6,182,212,0.05); }
.weekday-rest { background: rgba(139,92,246,0.05); }
body.light-theme .weekday-work { background: rgba(8,145,178,0.04); }
body.light-theme .weekday-rest { background: rgba(124,58,237,0.04); }
.weekday-divider { width: 1px; background: var(--border); }
.weekday-val {
  font-family: 'Bricolage Grotesque', sans-serif; font-size: 28px; font-weight: 800;
  letter-spacing: -0.8px; color: var(--text);
}
.weekday-label {
  font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--text-dim); display: flex; align-items: center; gap: 5px;
}
.weekday-work .weekday-label i { color: #06b6d4; }
body.light-theme .weekday-work .weekday-label i { color: #0891b2; }
.weekday-rest .weekday-label i { color: #8b5cf6; }
body.light-theme .weekday-rest .weekday-label i { color: #7c3aed; }

/* ============================================
   DATE RANGE CONNECTOR
   ============================================ */
.date-range-section { background: var(--surface); padding: 16px 20px; }
.date-range-row { display: flex; align-items: center; gap: 14px; }
.dr-icon {
  flex-shrink: 0; width: 30px; height: 30px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center; font-size: 13px;
}
.dr-from { background: rgba(6,182,212,0.12); color: #06b6d4; }
.dr-to   { background: rgba(16,185,129,0.12); color: #10b981; }
body.light-theme .dr-from { background: rgba(8,145,178,0.08); color: #0891b2; }
.dr-content { flex: 1; display: flex; flex-direction: column; gap: 2px; }
.dr-label { font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.07em; color: var(--text-dim); }
.dr-val { font-family: 'DM Mono', monospace; font-size: 13px; font-weight: 600; color: var(--text); }
.dr-connector {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 0 6px 8px; margin: 2px 0;
}
.dr-line { flex: 1; height: 1px; background: var(--border); }
.dr-badge {
  padding: 3px 10px; border-radius: 100px;
  background: rgba(6,182,212,0.12); border: 1px solid rgba(6,182,212,0.3);
  font-family: 'DM Mono', monospace; font-size: 11px; font-weight: 700; color: #06b6d4;
  white-space: nowrap;
}
body.light-theme .dr-badge { background: rgba(8,145,178,0.08); border-color: rgba(8,145,178,0.25); color: #0891b2; }
.dr-badge.badge-subtract { background: rgba(248,113,113,0.1); border-color: rgba(248,113,113,0.3); color: #f87171; }
body.light-theme .dr-badge.badge-subtract { color: #ef4444; }

/* ============================================
   TOPIC CLUSTER
   ============================================ */
.topic-cluster-section {
  position: relative; z-index: 1;
  background: var(--bg-2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
}
.topic-cluster-inner { max-width: 1320px; margin: 0 auto; padding: 56px 24px; }
.topic-cluster-header { max-width: 680px; margin-bottom: 40px; }
.topic-cluster-tag {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 4px 12px 4px 8px; background: rgba(6,182,212,0.12); border: 1px solid rgba(6,182,212,0.22);
  border-radius: 100px; font-size: 12px; font-weight: 600; color: #06b6d4;
  text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 16px;
}
body.light-theme .topic-cluster-tag { background: rgba(8,145,178,0.07); border-color: rgba(8,145,178,0.2); color: #0891b2; }
.topic-cluster-header h2 { font-family: 'Bricolage Grotesque', sans-serif; font-size: clamp(22px,2.5vw,30px); font-weight: 800; letter-spacing: -0.8px; color: var(--text); margin-bottom: 12px; }
.topic-cluster-header p { font-size: 15px; line-height: 1.75; color: var(--text-muted); }
.cluster-grid { display: grid; grid-template-columns: 280px 1fr; gap: 24px; margin-bottom: 40px; align-items: start; }
.cluster-primary {
  background: var(--surface); border: 2px solid #06b6d4; border-radius: var(--radius); padding: 22px; position: relative;
}
body.light-theme .cluster-primary { border-color: #0891b2; }
.cluster-primary::before { content: ''; position: absolute; inset: 0; border-radius: inherit; background: linear-gradient(135deg, rgba(6,182,212,0.07) 0%, transparent 60%); pointer-events: none; }
.cluster-primary-label { display: inline-flex; align-items: center; gap: 6px; font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: #06b6d4; margin-bottom: 10px; }
body.light-theme .cluster-primary-label { color: #0891b2; }
.cluster-primary h3 { font-family: 'Bricolage Grotesque', sans-serif; font-size: 18px; font-weight: 700; color: var(--text); margin-bottom: 8px; position: relative; }
.cluster-primary p { font-size: 13px; line-height: 1.65; color: var(--text-muted); margin-bottom: 14px; position: relative; }
.cluster-keywords { display: flex; flex-wrap: wrap; gap: 6px; position: relative; }
.cluster-keywords span { padding: 3px 9px; background: rgba(6,182,212,0.1); border: 1px solid rgba(6,182,212,0.2); border-radius: 100px; font-size: 11px; font-weight: 600; color: #06b6d4; }
body.light-theme .cluster-keywords span { background: rgba(8,145,178,0.07); border-color: rgba(8,145,178,0.18); color: #0891b2; }
.cluster-links { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.cluster-links h3 { font-family: 'Bricolage Grotesque', sans-serif; font-size: 14px; font-weight: 700; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.06em; padding: 14px 20px; border-bottom: 1px solid var(--border); background: var(--bg-3); }
.cluster-link-list { display: flex; flex-direction: column; }
.cluster-link-item { display: flex; align-items: center; gap: 14px; padding: 14px 20px; border-bottom: 1px solid var(--border); transition: background var(--transition); }
.cluster-link-item:last-child { border-bottom: none; }
.cluster-link-item:hover { background: var(--bg-3); }
.cluster-link-icon { flex-shrink: 0; width: 34px; height: 34px; border-radius: 8px; background: rgba(6,182,212,0.1); display: flex; align-items: center; justify-content: center; font-size: 15px; color: #06b6d4; }
body.light-theme .cluster-link-icon { background: rgba(8,145,178,0.07); color: #0891b2; }
.cluster-link-text { flex: 1; display: flex; flex-direction: column; gap: 2px; }
.cluster-link-text strong { font-size: 14px; font-weight: 600; color: var(--text); }
.cluster-link-text span { font-size: 12px; color: var(--text-dim); }
.cluster-link-arrow { color: var(--text-dim); font-size: 12px; transition: transform var(--transition), color var(--transition); }
.cluster-link-item:hover .cluster-link-arrow { transform: translateX(3px); color: #06b6d4; }
body.light-theme .cluster-link-item:hover .cluster-link-arrow { color: #0891b2; }
.cluster-link-all { background: var(--bg-2); }
.cluster-crosslinks { padding-top: 32px; border-top: 1px solid var(--border); }
.cluster-crosslinks h3 { font-family: 'Bricolage Grotesque', sans-serif; font-size: 18px; font-weight: 700; letter-spacing: -0.3px; color: var(--text); margin-bottom: 6px; }
.cluster-crosslinks > p { font-size: 14px; color: var(--text-muted); margin-bottom: 20px; }
.crosslink-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.crosslink-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 16px; display: flex; flex-direction: column; gap: 8px; transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition); }
.crosslink-card:hover { border-color: #06b6d4; transform: translateY(-3px); box-shadow: var(--shadow); }
body.light-theme .crosslink-card:hover { border-color: #0891b2; }
.crosslink-card i { font-size: 20px; color: #06b6d4; }
body.light-theme .crosslink-card i { color: #0891b2; }
.crosslink-card strong { font-family: 'Bricolage Grotesque', sans-serif; font-size: 14px; font-weight: 700; color: var(--text); }
.crosslink-card span { font-size: 12px; line-height: 1.5; color: var(--text-dim); }

/* Ad slot */
.ad-slot { position: relative; z-index: 1; max-width: 1320px; margin: 0 auto; padding: 0 24px 40px; }
.ad-slot > div { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }

/* Fade-up */
.fade-up { opacity: 0; transform: translateY(16px); transition: opacity 0.5s ease, transform 0.5s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 1024px) {
  .calc-page { grid-template-columns: 1fr; padding: 32px 20px 60px; gap: 32px; }
  .calc-page-info { position: static; }
  .calc-panel { position: static; order: 2; }
  .calc-page-content { order: 3; }
  .cluster-grid { grid-template-columns: 1fr; }
  .crosslink-grid { grid-template-columns: 1fr 1fr; }
  .mode-cards { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .calc-page { padding: 24px 16px 48px; }
  .mode-cards { grid-template-columns: 1fr; }
  .breakdown-grid6 { grid-template-columns: repeat(2, 1fr); }
  .crosslink-grid { grid-template-columns: 1fr; }
  .result-days-main { font-size: 38px; }
  .topic-cluster-inner { padding: 36px 16px; }
  .segmented-toggle { flex-direction: column; }
  .seg-opt { font-size: 12px; padding: 8px; }
}

@media (min-width: 1025px) {
  .calc-page-info {
    grid-row: 1 / 2;
    grid-column: 1 / 2;
  }
  .calc-page-content {
    grid-row: 2 / 3;
    grid-column: 1 / 2;
  }
  .calc-panel {
    grid-row: 1 / 3;
    grid-column: 2 / 3;
    align-self: start;
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }
}