/* ============================================================
   BudgetCalc — Calculator Pages Shared Styles
   Extends css/styles.css
   ============================================================ */

/* ---- Nav Dropdown ---- */
.nav-item-dropdown { position: relative; }
.nav-dropdown-btn {
  display: flex; align-items: center; gap: 5px;
  padding: 8px 14px;
  font-size: .9rem; font-weight: 600; color: var(--gray-600);
  border-radius: var(--radius-sm);
  background: none; border: none; cursor: pointer;
  font-family: var(--font-body);
  transition: var(--transition);
}
.nav-dropdown-btn:hover { color: var(--blue-600); background: var(--blue-50); }
.nav-dropdown {
  display: none; position: absolute; top: calc(100% + 8px); left: 50%;
  transform: translateX(-50%);
  background: var(--white); border-radius: var(--radius-lg);
  box-shadow: 0 20px 60px rgba(0,0,0,.15), 0 4px 16px rgba(37,99,235,.1);
  border: 1px solid var(--gray-100);
  width: 340px; padding: 8px; z-index: 200;
}
.nav-dropdown.open { display: block; animation: dropIn .18s ease; }
@keyframes dropIn { from { opacity:0; transform: translateX(-50%) translateY(-8px); } to { opacity:1; transform: translateX(-50%) translateY(0); } }
.nav-dropdown-item {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 12px; border-radius: var(--radius-sm);
  transition: var(--transition);
}
.nav-dropdown-item:hover { background: var(--gray-50); }
.ddi-icon { width: 36px; height: 36px; border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 1.1rem; flex-shrink: 0; }
.ddi-title { font-size: .875rem; font-weight: 700; color: var(--gray-800); }
.ddi-desc { font-size: .75rem; color: var(--gray-400); margin-top: 1px; }

/* Mobile nav section title */
.mobile-nav-section-title {
  padding: 8px 16px 4px;
  font-size: .7rem; font-weight: 700; letter-spacing: 1px;
  text-transform: uppercase; color: var(--gray-400);
}

/* ---- Page Hero (reused across all calc pages) ---- */
.page-hero {
  padding-top: 68px;
  background: linear-gradient(145deg, var(--hero-from, #EFF6FF) 0%, var(--hero-mid, #EEF5FF) 50%, var(--hero-to, #FFFBEB) 100%);
  position: relative; overflow: hidden;
}
.page-hero::before {
  content: ''; position: absolute; inset: 0;
  background-image:
    radial-gradient(circle at 15% 40%, var(--hero-glow1, rgba(37,99,235,.07)) 0%, transparent 55%),
    radial-gradient(circle at 85% 60%, var(--hero-glow2, rgba(245,158,11,.07)) 0%, transparent 55%);
  pointer-events: none;
}
.page-hero-inner {
  max-width: 1200px; margin: 0 auto; padding: 64px 24px 56px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center;
  position: relative;
}
.page-hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 5px 14px; border-radius: 100px;
  font-size: .78rem; font-weight: 700; letter-spacing: .5px; text-transform: uppercase;
  margin-bottom: 20px;
}
.page-hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4.5vw, 3.4rem);
  line-height: 1.1; color: var(--gray-900); margin-bottom: 16px;
}
.page-hero-title .accent { font-style: italic; }
.page-hero-desc {
  font-size: 1.05rem; color: var(--gray-600); line-height: 1.7;
  margin-bottom: 28px; max-width: 480px;
}
.page-hero-ctas { display: flex; gap: 12px; flex-wrap: wrap; }
.page-hero-visual { position: relative; }

/* ---- Breadcrumb ---- */
.breadcrumb {
  max-width: 1200px; margin: 0 auto; padding: 12px 24px 0;
  display: flex; align-items: center; gap: 8px;
  font-size: .8rem; color: var(--gray-400); position: relative; z-index: 1;
}
.breadcrumb a { color: var(--gray-400); }
.breadcrumb a:hover { color: var(--blue-600); }
.breadcrumb-sep { color: var(--gray-300); }
.breadcrumb-current { color: var(--gray-600); font-weight: 600; }

/* ---- Calc Tool Card ---- */
.tool-section { padding: 80px 0; background: var(--gray-50); }
.tool-layout {
  max-width: 1200px; margin: 0 auto; padding: 0 24px;
  display: grid; grid-template-columns: 1fr 380px; gap: 28px; align-items: start;
}
.tool-panel {
  background: var(--white); border-radius: var(--radius-lg);
  border: 1px solid var(--gray-100); box-shadow: var(--shadow);
  overflow: hidden;
}
.tool-panel-header {
  padding: 20px 28px; border-bottom: 1px solid var(--gray-100);
  display: flex; align-items: center; gap: 12px;
}
.tool-panel-icon { font-size: 1.4rem; }
.tool-panel-title { font-weight: 800; font-size: 1.05rem; color: var(--gray-900); }
.tool-panel-sub { font-size: .8rem; color: var(--gray-400); margin-top: 1px; }
.tool-panel-body { padding: 28px; }
.tool-panel-footer {
  padding: 16px 28px; background: var(--gray-50);
  border-top: 1px solid var(--gray-100); display: flex; gap: 12px;
}

/* ---- Form Elements (shared) ---- */
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.form-row-3 { grid-template-columns: 1fr 1fr 1fr; }
.form-row.single { grid-template-columns: 1fr; }
.field { display: flex; flex-direction: column; gap: 5px; }
.field-label {
  font-size: .8rem; font-weight: 700; color: var(--gray-600);
  display: flex; align-items: center; gap: 6px;
}
.field-hint { font-size: .7rem; color: var(--gray-400); font-weight: 400; }
.field-input-wrap { position: relative; display: flex; align-items: center; }
.field-prefix, .field-suffix {
  position: absolute; font-size: .875rem; font-weight: 600;
  color: var(--gray-400); pointer-events: none; z-index: 1;
}
.field-prefix { left: 11px; }
.field-suffix { right: 11px; }
.finput {
  width: 100%; padding: 10px 12px;
  border: 1.5px solid var(--gray-200); border-radius: var(--radius-sm);
  font-size: .925rem; font-family: var(--font-body); color: var(--gray-800);
  background: var(--white); transition: var(--transition);
  -moz-appearance: textfield;
}
.finput::-webkit-inner-spin-button, .finput::-webkit-outer-spin-button { -webkit-appearance: none; }
.finput:focus { outline: none; border-color: var(--blue-500); box-shadow: 0 0 0 3px rgba(37,99,235,.1); }
.finput.has-prefix { padding-left: 26px; }
.finput.has-suffix { padding-right: 32px; }
.fselect {
  width: 100%; padding: 10px 36px 10px 12px;
  border: 1.5px solid var(--gray-200); border-radius: var(--radius-sm);
  font-size: .925rem; font-family: var(--font-body); color: var(--gray-800);
  background: var(--white) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2394A3B8' stroke-width='1.5' fill='none'/%3E%3C/svg%3E") no-repeat right 12px center;
  appearance: none; transition: var(--transition);
}
.fselect:focus { outline: none; border-color: var(--blue-500); box-shadow: 0 0 0 3px rgba(37,99,235,.1); }
.form-section-sep {
  font-size: .72rem; font-weight: 700; letter-spacing: 1px;
  text-transform: uppercase; color: var(--gray-400);
  padding: 16px 0 8px; border-bottom: 1px solid var(--gray-100); margin-bottom: 16px;
}
.form-section-sep:first-child { padding-top: 0; }

/* ---- Range Slider ---- */
.range-wrap { display: flex; flex-direction: column; gap: 6px; }
.range-labels { display: flex; justify-content: space-between; font-size: .75rem; color: var(--gray-400); }
input[type=range] {
  width: 100%; -webkit-appearance: none; appearance: none;
  height: 6px; border-radius: 100px;
  background: var(--gray-200); outline: none;
}
input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 20px; height: 20px; border-radius: 50%;
  background: var(--blue-600); cursor: pointer;
  border: 3px solid white; box-shadow: 0 2px 6px rgba(37,99,235,.3);
}

/* ---- Results Panel ---- */
.results-aside {
  background: var(--white); border-radius: var(--radius-lg);
  border: 1px solid var(--gray-100); box-shadow: var(--shadow);
  overflow: hidden; position: sticky; top: 90px;
}
.results-aside-header {
  padding: 20px 22px;
  color: white;
}
.results-aside-label { font-size: .8rem; font-weight: 700; opacity: .8; margin-bottom: 10px; }
.results-aside-big {
  font-family: var(--font-display); font-size: 2.4rem;
  color: white; line-height: 1;
}
.results-aside-sub { font-size: .8rem; color: rgba(255,255,255,.7); margin-top: 5px; }
.results-aside-body { padding: 18px; }
.results-aside-section { margin-bottom: 18px; }
.ras-title { font-size: .7rem; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; color: var(--gray-400); margin-bottom: 10px; }
.ras-rows { display: flex; flex-direction: column; gap: 7px; }
.ras-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 8px 10px; border-radius: var(--radius-sm); background: var(--gray-50);
}
.ras-row-label { font-size: .835rem; color: var(--gray-600); }
.ras-row-val { font-size: .9rem; font-weight: 700; color: var(--gray-800); }
.ras-divider { height: 1px; background: var(--gray-100); margin: 10px 0; }
.ras-highlight {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 12px; border-radius: var(--radius-sm);
}
.ras-highlight-label { font-size: .875rem; font-weight: 700; }
.ras-highlight-val { font-size: 1rem; font-weight: 800; }
.ras-bar-wrap { margin-top: 10px; }
.ras-bar-label { display: flex; justify-content: space-between; font-size: .75rem; color: var(--gray-400); margin-bottom: 5px; }
.ras-bar-bg { height: 8px; background: var(--gray-100); border-radius: 100px; overflow: hidden; }
.ras-bar-fill { height: 100%; border-radius: 100px; transition: width .5s ease; }
.results-empty-state {
  padding: 40px 20px; text-align: center;
}
.res-empty-icon { font-size: 2.5rem; margin-bottom: 12px; }
.res-empty-title { font-weight: 700; color: var(--gray-600); margin-bottom: 6px; font-size: .95rem; }
.res-empty-desc { font-size: .8rem; color: var(--gray-400); line-height: 1.6; }
.btn-calc-main {
  flex: 1; padding: 13px; border-radius: var(--radius);
  background: linear-gradient(135deg, var(--btn-from, #2563EB), var(--btn-to, #1D4ED8));
  color: white; font-size: .95rem; font-weight: 700;
  transition: var(--transition); box-shadow: 0 4px 16px var(--btn-shadow, rgba(37,99,235,.3));
}
.btn-calc-main:hover { transform: translateY(-2px); filter: brightness(1.05); box-shadow: 0 8px 24px var(--btn-shadow, rgba(37,99,235,.35)); }
.btn-calc-reset {
  padding: 13px 18px; border-radius: var(--radius);
  background: var(--gray-100); color: var(--gray-600);
  font-size: .875rem; font-weight: 600; transition: var(--transition);
}
.btn-calc-reset:hover { background: var(--gray-200); }
.btn-export-sm {
  width: 100%; padding: 10px; margin-top: 14px; border-radius: var(--radius-sm);
  background: var(--gray-50); color: var(--gray-600);
  font-size: .8rem; font-weight: 600; border: 1.5px solid var(--gray-200);
  transition: var(--transition);
}
.btn-export-sm:hover { background: var(--gray-100); color: var(--gray-800); }

/* ---- Info Callout ---- */
.info-callout {
  padding: 14px 16px; border-radius: var(--radius-sm);
  display: flex; gap: 10px; align-items: flex-start;
  font-size: .82rem; line-height: 1.6; margin-top: 14px;
}
.info-callout-icon { font-size: 1rem; flex-shrink: 0; margin-top: 1px; }

/* ---- Toggle Switch ---- */
.toggle-group { display: flex; background: var(--gray-100); border-radius: var(--radius-sm); padding: 3px; gap: 2px; }
.toggle-btn {
  flex: 1; padding: 8px 12px; border-radius: 6px;
  font-size: .82rem; font-weight: 700; color: var(--gray-500);
  transition: var(--transition); cursor: pointer;
}
.toggle-btn.active { background: var(--white); color: var(--blue-600); box-shadow: var(--shadow-sm); }
.toggle-btn:hover:not(.active) { color: var(--gray-700); }

/* ---- Content Sections ---- */
.page-content-section { padding: 80px 0; background: var(--white); }
.page-content-section.alt { background: var(--gray-50); }
.page-content-section.blue { background: var(--blue-50); }
.content-cols {
  max-width: 1200px; margin: 0 auto; padding: 0 24px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start;
}
.content-prose h2 { font-family: var(--font-display); font-size: 1.9rem; color: var(--gray-900); margin-bottom: 16px; line-height: 1.2; }
.content-prose h3 { font-size: 1.05rem; font-weight: 700; color: var(--gray-800); margin: 20px 0 8px; }
.content-prose p { font-size: .95rem; color: var(--gray-600); line-height: 1.8; margin-bottom: 14px; }
.content-prose ul { display: flex; flex-direction: column; gap: 7px; margin: 10px 0 14px; }
.content-prose li { font-size: .95rem; color: var(--gray-600); padding-left: 18px; position: relative; line-height: 1.6; }
.content-prose li::before { content: '→'; position: absolute; left: 0; color: var(--blue-500); font-weight: 700; }
.info-cards { display: flex; flex-direction: column; gap: 14px; }
.info-card {
  background: var(--white); border-radius: var(--radius); padding: 22px;
  border: 1px solid var(--gray-100); box-shadow: var(--shadow-sm);
}
.info-card h3 { font-weight: 700; font-size: .95rem; color: var(--gray-800); margin-bottom: 7px; display: flex; align-items: center; gap: 8px; }
.info-card p { font-size: .85rem; color: var(--gray-500); line-height: 1.65; }

/* ---- FAQ (page-level) ---- */
.page-faq-section { padding: 80px 0; }
.page-faq-inner { max-width: 800px; margin: 0 auto; padding: 0 24px; }

/* ---- Related Calculators ---- */
.related-section { padding: 72px 0; background: var(--white); }
.related-grid {
  max-width: 1200px; margin: 0 auto; padding: 0 24px;
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; margin-top: 36px;
}
.related-card {
  background: var(--gray-50); border-radius: var(--radius);
  padding: 20px 16px; text-align: center; border: 1px solid var(--gray-100);
  transition: var(--transition);
}
.related-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); background: var(--white); }
.related-card-icon { font-size: 1.8rem; margin-bottom: 10px; }
.related-card-name { font-size: .85rem; font-weight: 700; color: var(--gray-800); margin-bottom: 4px; }
.related-card-desc { font-size: .75rem; color: var(--gray-400); line-height: 1.4; }

/* ---- CTA Banner ---- */
.page-cta {
  padding: 72px 0;
  background: linear-gradient(135deg, var(--cta-from, #1D4ED8), var(--cta-to, #1E3A8A));
  position: relative; overflow: hidden;
}
.page-cta::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 15% 50%, rgba(255,255,255,.06) 0%, transparent 50%),
              radial-gradient(circle at 85% 50%, rgba(255,255,255,.05) 0%, transparent 50%);
}
.page-cta-inner { max-width: 660px; margin: 0 auto; padding: 0 24px; text-align: center; position: relative; }
.page-cta-title { font-family: var(--font-display); font-size: clamp(1.8rem, 3.5vw, 2.6rem); color: white; line-height: 1.15; margin-bottom: 14px; }
.page-cta-desc { font-size: 1rem; color: rgba(255,255,255,.75); margin-bottom: 28px; }
.page-cta-btns { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ---- Progress/Timeline ---- */
.timeline { display: flex; flex-direction: column; gap: 0; }
.timeline-item { display: flex; gap: 16px; }
.timeline-spine { display: flex; flex-direction: column; align-items: center; }
.timeline-dot {
  width: 32px; height: 32px; border-radius: 50%; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: .8rem; font-weight: 700; color: white;
}
.timeline-line { width: 2px; flex: 1; background: var(--gray-200); min-height: 24px; }
.timeline-item:last-child .timeline-line { display: none; }
.timeline-content { padding-bottom: 20px; padding-top: 4px; }
.timeline-title { font-weight: 700; font-size: .95rem; color: var(--gray-800); margin-bottom: 4px; }
.timeline-desc { font-size: .85rem; color: var(--gray-500); line-height: 1.6; }

/* ---- Amortisation Table ---- */
.table-wrap { overflow-x: auto; border-radius: var(--radius-sm); border: 1px solid var(--gray-100); }
.data-table { width: 100%; border-collapse: collapse; font-size: .82rem; }
.data-table th {
  background: var(--gray-50); padding: 10px 14px;
  text-align: left; font-weight: 700; font-size: .75rem;
  letter-spacing: .5px; text-transform: uppercase; color: var(--gray-500);
  border-bottom: 1px solid var(--gray-200); white-space: nowrap;
}
.data-table td { padding: 9px 14px; color: var(--gray-700); border-bottom: 1px solid var(--gray-100); }
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--gray-50); }
.data-table .positive { color: var(--green-600); font-weight: 700; }
.data-table .negative { color: var(--red-500); font-weight: 700; }
.table-note { font-size: .75rem; color: var(--gray-400); margin-top: 8px; }

/* ---- Chart Container ---- */
.chart-container { position: relative; }
.chart-bars { display: flex; align-items: flex-end; gap: 3px; height: 120px; }
.chart-bar { flex: 1; border-radius: 4px 4px 0 0; min-width: 4px; transition: height .4s ease; }
.chart-labels { display: flex; gap: 3px; margin-top: 4px; overflow: hidden; }
.chart-label { flex: 1; font-size: .6rem; color: var(--gray-400); text-align: center; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ---- Pill Tabs ---- */
.pill-tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 20px; }
.pill-tab {
  padding: 7px 16px; border-radius: 100px;
  font-size: .82rem; font-weight: 700;
  border: 1.5px solid var(--gray-200); color: var(--gray-500);
  transition: var(--transition); cursor: pointer; background: var(--white);
}
.pill-tab.active { border-color: var(--blue-600); color: var(--blue-600); background: var(--blue-50); }
.pill-tab:hover:not(.active) { border-color: var(--gray-300); color: var(--gray-700); }

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .tool-layout { grid-template-columns: 1fr; }
  .results-aside { position: static; }
  .page-hero-inner { grid-template-columns: 1fr; gap: 36px; }
  .related-grid { grid-template-columns: repeat(3, 1fr); }
  .content-cols { grid-template-columns: 1fr; gap: 36px; }
}
@media (max-width: 768px) {
  .form-row { grid-template-columns: 1fr; gap: 12px; }
  .form-row-3 { grid-template-columns: 1fr; }
  .page-hero-inner { padding: 48px 24px 36px; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .page-hero-ctas { flex-direction: column; }
}
@media (max-width: 480px) {
  .related-grid { grid-template-columns: 1fr 1fr; }
}