@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  --bra-size-calculator-teal: #0D9488;
  --bra-size-calculator-teal-light: #14B8A6;
  --bra-size-calculator-teal-dark: #0F766E;
  --bra-size-calculator-navy: #0F172A;
  --bra-size-calculator-navy-mid: #1E293B;
  --bra-size-calculator-white: #FFFFFF;
  --bra-size-calculator-gray: #F1F5F9;
  --bra-size-calculator-gray-mid: #E2E8F0;
  --bra-size-calculator-text: #0F172A;
  --bra-size-calculator-text-muted: #64748B;
  --bra-size-calculator-red: #DC2626;
  --bra-size-calculator-amber: #D97706;
}

.bra-size-calculator-wrap * { box-sizing: border-box; }

.bra-size-calculator-wrap {
  font-family: 'Inter', sans-serif;
  max-width: 1100px;
  margin: 0 auto;
  padding: 20px;
  color: var(--bra-size-calculator-text);
}

/* Header */
.bra-size-calculator-header {
  background: linear-gradient(135deg, var(--bra-size-calculator-navy) 0%, var(--bra-size-calculator-navy-mid) 100%);
  color: var(--bra-size-calculator-white);
  padding: 40px;
  border-radius: 16px;
  text-align: center;
  margin-bottom: 20px;
}
.bra-size-calculator-header-icon { font-size: 48px; margin-bottom: 12px; }
.bra-size-calculator-header h2 { font-size: 30px; font-weight: 800; margin: 0 0 8px; }
.bra-size-calculator-header p { font-size: 15px; opacity: 0.7; margin: 0; }

/* How to Measure panel */
.bra-size-calculator-howto-card {
  background: var(--bra-size-calculator-white);
  border: 1.5px solid var(--bra-size-calculator-teal);
  border-radius: 16px;
  margin-bottom: 20px;
  overflow: hidden;
}
.bra-size-calculator-howto-toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  text-align: left;
  background: rgba(13, 148, 136, 0.08);
  border: none;
  padding: 16px 20px;
  font-size: 14px;
  font-weight: 700;
  color: var(--bra-size-calculator-teal-dark);
  cursor: pointer;
  font-family: inherit;
}
.bra-size-calculator-howto-toggle-icon { flex: 0 0 auto; transition: transform 0.15s ease; font-size: 11px; }
.bra-size-calculator-howto-toggle-icon--collapsed { transform: rotate(-90deg); }
.bra-size-calculator-howto-body { padding: 18px 22px 22px; }
.bra-size-calculator-howto-body--collapsed { display: none; }
.bra-size-calculator-howto-list { margin: 0 0 16px; padding-left: 22px; display: flex; flex-direction: column; gap: 10px; }
.bra-size-calculator-howto-list li { font-size: 13.5px; line-height: 1.55; color: var(--bra-size-calculator-text); }
.bra-size-calculator-howto-diagram { display: flex; justify-content: center; }
.bra-size-calculator-howto-svg { width: 100%; max-width: 420px; height: auto; }
.bra-size-calculator-howto-svg-label { font-size: 8.5px; fill: var(--bra-size-calculator-text-muted); font-weight: 600; }

/* Main Grid */
.bra-size-calculator-main-grid { display: grid; grid-template-columns: 380px 1fr; gap: 24px; align-items: start; margin-bottom: 20px; }
@media (max-width: 900px) { .bra-size-calculator-main-grid { grid-template-columns: 1fr; } }

/* Inputs Panel */
.bra-size-calculator-inputs-panel {
  background: var(--bra-size-calculator-white);
  border: 1px solid var(--bra-size-calculator-gray-mid);
  border-radius: 16px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.bra-size-calculator-field label { display: block; font-size: 12.5px; font-weight: 600; color: var(--bra-size-calculator-navy); margin-bottom: 6px; }
.bra-size-calculator-field { flex: 0 1 auto; min-width: 0; margin-bottom: 14px; }
.bra-size-calculator-field-row { display: flex; gap: 14px; margin-bottom: 16px; flex-wrap: wrap; }
.bra-size-calculator-field-row > .bra-size-calculator-field { flex: 1 1 140px; margin-bottom: 0; }
.bra-size-calculator-field-btn { display: flex; align-items: flex-end; }

.bra-size-calculator-select, .bra-size-calculator-input {
  width: 100%;
  border: 1.5px solid var(--bra-size-calculator-gray-mid);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 14.5px;
  font-family: inherit;
  color: var(--bra-size-calculator-text);
  background: var(--bra-size-calculator-white);
  transition: border-color .15s ease;
}
.bra-size-calculator-select:focus, .bra-size-calculator-input:focus { outline: none; border-color: var(--bra-size-calculator-teal); }

.bra-size-calculator-hint { margin: 6px 0 0; font-size: 12px; color: var(--bra-size-calculator-text-muted); line-height: 1.5; }

.bra-size-calculator-custom-system-field { margin-bottom: 8px; }

.bra-size-calculator-divider {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 8px 0 16px;
  color: var(--bra-size-calculator-text-muted);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.bra-size-calculator-divider::before, .bra-size-calculator-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--bra-size-calculator-gray-mid);
}

/* Mode toggle (unit, method, diagram) */
.bra-size-calculator-mode-toggle { display: flex; gap: 6px; background: var(--bra-size-calculator-gray); border: 1.5px solid var(--bra-size-calculator-gray-mid); border-radius: 10px; padding: 4px; margin-bottom: 16px; }
.bra-size-calculator-mode-toggle-btn {
  flex: 1;
  padding: 8px 10px;
  font-size: 12.5px;
  font-weight: 700;
  border: none;
  border-radius: 7px;
  background: transparent;
  color: var(--bra-size-calculator-text-muted);
  cursor: pointer;
  font-family: inherit;
  transition: background .15s ease, color .15s ease;
}
.bra-size-calculator-mode-toggle-btn--active { background: var(--bra-size-calculator-teal); color: var(--bra-size-calculator-white); }

/* Calc button */
.bra-size-calculator-calc-btn {
  background: var(--bra-size-calculator-teal);
  color: var(--bra-size-calculator-white);
  border: none;
  padding: 15px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  width: 100%;
  transition: background 0.2s;
  letter-spacing: 0.3px;
  font-family: inherit;
  margin-top: 6px;
}
.bra-size-calculator-calc-btn:hover { background: var(--bra-size-calculator-teal-dark); }

.bra-size-calculator-btn-ghost {
  background: var(--bra-size-calculator-teal);
  color: var(--bra-size-calculator-white);
  border: none;
  border-radius: 8px;
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  white-space: nowrap;
}
.bra-size-calculator-btn-ghost:hover { background: var(--bra-size-calculator-teal-dark); }
.bra-size-calculator-btn-ghost--small { padding: 7px 12px; font-size: 11.5px; }
.bra-size-calculator-btn-ghost--muted { background: var(--bra-size-calculator-white); color: var(--bra-size-calculator-text-muted); border: 1.5px solid var(--bra-size-calculator-gray-mid); }
.bra-size-calculator-btn-ghost--muted:hover { color: var(--bra-size-calculator-red); border-color: var(--bra-size-calculator-red); background: var(--bra-size-calculator-white); }

/* Results panel */
.bra-size-calculator-results-panel { display: flex; flex-direction: column; gap: 18px; }

.bra-size-calculator-hero-card {
  background: linear-gradient(135deg, var(--bra-size-calculator-navy) 0%, var(--bra-size-calculator-navy-mid) 100%);
  color: var(--bra-size-calculator-white);
  padding: 32px;
  border-radius: 16px;
  text-align: center;
}
.bra-size-calculator-hero-label { font-size: 13px; opacity: 0.7; margin-bottom: 8px; text-transform: uppercase; letter-spacing: 0.08em; }
.bra-size-calculator-hero-amount { font-size: 42px; font-weight: 800; color: var(--bra-size-calculator-teal-light); margin-bottom: 8px; word-break: break-word; }
.bra-size-calculator-hero-sub { font-size: 14px; opacity: 0.75; }

/* Diagram card */
.bra-size-calculator-diagram-card {
  background: var(--bra-size-calculator-white);
  border: 1px solid var(--bra-size-calculator-gray-mid);
  border-radius: 16px;
  padding: 18px;
}
.bra-size-calculator-chart-title { font-size: 12.5px; font-weight: 700; color: var(--bra-size-calculator-navy); text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: 12px; }
.bra-size-calculator-diagram-wrap { display: flex; justify-content: center; margin-bottom: 12px; }
.bra-size-calculator-diagram-svg { width: 100%; max-width: 320px; height: auto; }
.bra-size-calculator-diagram-band { fill: rgba(13, 148, 136, 0.15); stroke: var(--bra-size-calculator-teal); stroke-width: 2.5; transition: all 0.5s cubic-bezier(0.22, 1, 0.36, 1); }
.bra-size-calculator-diagram-cup { fill: rgba(15, 23, 42, 0.10); stroke: var(--bra-size-calculator-navy-mid); stroke-width: 2.5; transition: all 0.5s cubic-bezier(0.22, 1, 0.36, 1); }
.bra-size-calculator-diagram-label { font-size: 9px; fill: var(--bra-size-calculator-text-muted); font-weight: 700; }
.bra-size-calculator-diagram-value-label { font-size: 11px; fill: var(--bra-size-calculator-navy); font-weight: 800; }
.bra-size-calculator-diagram-toggle { display: flex; gap: 6px; margin-bottom: 4px; }
.bra-size-calculator-diagram-toggle-btn {
  flex: 1;
  padding: 8px 8px;
  font-size: 11.5px;
  font-weight: 700;
  border: 1.5px solid var(--bra-size-calculator-gray-mid);
  border-radius: 8px;
  background: var(--bra-size-calculator-white);
  color: var(--bra-size-calculator-text-muted);
  cursor: pointer;
  font-family: inherit;
  transition: background .15s ease, color .15s ease, border-color .15s ease;
}
.bra-size-calculator-diagram-toggle-btn--active { background: var(--bra-size-calculator-teal); color: var(--bra-size-calculator-white); border-color: var(--bra-size-calculator-teal); }

/* Sister size cards */
.bra-size-calculator-sister-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
@media (max-width: 640px) { .bra-size-calculator-sister-grid { grid-template-columns: 1fr; } }
.bra-size-calculator-sister-card { background: var(--bra-size-calculator-white); border: 1px solid var(--bra-size-calculator-gray-mid); border-radius: 12px; padding: 14px; text-align: center; }
.bra-size-calculator-sister-card-label { font-size: 11px; font-weight: 700; color: var(--bra-size-calculator-text-muted); text-transform: uppercase; letter-spacing: 0.03em; margin-bottom: 8px; line-height: 1.4; }
.bra-size-calculator-sister-card-val { font-size: 22px; font-weight: 800; color: var(--bra-size-calculator-teal-dark); }

/* Table */
.bra-size-calculator-table-card {
  background: var(--bra-size-calculator-white);
  border: 1px solid var(--bra-size-calculator-gray-mid);
  border-radius: 16px;
  padding: 18px;
}
.bra-size-calculator-table-wrap {
  background: var(--bra-size-calculator-white);
  border: 1px solid var(--bra-size-calculator-gray-mid);
  border-radius: 12px;
  overflow: hidden;
}
.bra-size-calculator-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.bra-size-calculator-table th {
  background: var(--bra-size-calculator-navy);
  color: white;
  text-align: left;
  padding: 10px 14px;
  font-weight: 600;
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.bra-size-calculator-table td {
  padding: 9px 14px;
  text-align: left;
  border-bottom: 1px solid var(--bra-size-calculator-gray-mid);
  color: var(--bra-size-calculator-text);
}
.bra-size-calculator-table tr:nth-child(even) { background: var(--bra-size-calculator-gray); }
.bra-size-calculator-table-note { color: var(--bra-size-calculator-amber); font-weight: 600; font-size: 11.5px; }

/* Export */
.bra-size-calculator-export-row { display: flex; gap: 10px; flex-wrap: wrap; }
.bra-size-calculator-export-btn {
  flex: 1;
  min-width: 100px;
  background: var(--bra-size-calculator-white);
  border: 1.5px solid var(--bra-size-calculator-gray-mid);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 13.5px;
  font-weight: 600;
  font-family: inherit;
  color: var(--bra-size-calculator-navy);
  cursor: pointer;
  transition: border-color .15s ease, background .15s ease;
}
.bra-size-calculator-export-btn:hover { border-color: var(--bra-size-calculator-teal); background: var(--bra-size-calculator-gray); }

/* History */
.bra-size-calculator-history-toggle-btn {
  display: block;
  width: 100%;
  padding: 11px 14px;
  background: var(--bra-size-calculator-white);
  color: var(--bra-size-calculator-text-muted);
  border: 1.5px solid var(--bra-size-calculator-gray-mid);
  border-radius: 10px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  font-family: inherit;
  margin-bottom: 18px;
}
.bra-size-calculator-history-toggle-btn:hover { border-color: var(--bra-size-calculator-teal); color: var(--bra-size-calculator-navy); background: var(--bra-size-calculator-gray); }
.bra-size-calculator-history-panel { margin-bottom: 20px; background: var(--bra-size-calculator-gray); border: 1px solid var(--bra-size-calculator-gray-mid); border-radius: 16px; padding: 20px 20px 22px; }
.bra-size-calculator-history-head { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px; margin-bottom: 14px; }
.bra-size-calculator-history-title { margin: 0; font-size: 15px; color: var(--bra-size-calculator-navy); font-weight: 800; }
.bra-size-calculator-history-head-actions { display: flex; gap: 8px; }
.bra-size-calculator-history-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 10px; }
.bra-size-calculator-history-item {
  display: block;
  width: 100%;
  text-align: left;
  background: var(--bra-size-calculator-white);
  border: 1px solid var(--bra-size-calculator-gray-mid);
  border-radius: 10px;
  padding: 12px 14px;
  color: var(--bra-size-calculator-text);
  font-family: inherit;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.bra-size-calculator-history-item:hover { border-color: var(--bra-size-calculator-teal); box-shadow: 0 4px 12px rgba(13, 148, 136, 0.15); }
.bra-size-calculator-history-item-top { display: flex; justify-content: space-between; gap: 10px; font-size: 11px; color: var(--bra-size-calculator-text-muted); margin-bottom: 4px; }
.bra-size-calculator-history-item-summary { font-size: 12.5px; color: var(--bra-size-calculator-text-muted); margin-bottom: 3px; }
.bra-size-calculator-history-item-result { font-size: 14px; font-weight: 800; color: var(--bra-size-calculator-navy); }
.bra-size-calculator-history-empty { margin: 6px 0 0; font-size: 13px; color: var(--bra-size-calculator-text-muted); text-align: center; }
.bra-size-calculator-export-card { position: absolute; left: -9999px; top: -9999px; }

.bra-size-calculator-disclaimer { margin-top: 20px; font-size: 11.5px; color: var(--bra-size-calculator-text-muted); line-height: 1.6; text-align: center; }

@media (max-width: 640px) {
  .bra-size-calculator-header { padding: 28px 20px; }
  .bra-size-calculator-header h2 { font-size: 24px; }
  .bra-size-calculator-hero-amount { font-size: 30px; }
  .bra-size-calculator-export-row { flex-direction: column; }
}