/* ==========================================================================
   DHANVESTTOR — UNIVERSAL FINANCIAL CALCULATORS DESIGN SYSTEM
   1:1 Pixel-Perfect Parity with Next.js / Vercel Reference (dhanvesttorwebsite)
   
   Applies to:
   - Landing Page Live Calculator (#calculators, #landingCalculator)
   - Calculators Hub Suite (calculators/calculators.php, sip, lumpsum, swp, etc.)
   - Modular Calculator Components (includes/calculator-section.php)
   - Individual & Bridge Calculator Views
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CALCULATOR VARIABLES & DESIGN TOKENS
   -------------------------------------------------------------------------- */
:root {
  --calc-ivory: var(--color-ivory, #FBF7F0);
  --calc-paper: var(--color-paper, #F4EDE1);
  --calc-sand: var(--color-sand, #E9DCC7);
  --calc-indigo: var(--color-indigo, #2E2A6E);
  --calc-indigo-deep: var(--color-indigo-deep, #221F55);
  --calc-raspberry: var(--color-raspberry, #DE4D7A);
  --calc-raspberry-deep: var(--color-raspberry-deep, #C23B66);
  --calc-marigold: var(--color-marigold, #F8C233);
  --calc-ink: var(--color-ink, #1D1B3A);
  --calc-mist: var(--color-mist, #6E6C86);
  --calc-line: var(--color-line, rgba(29, 27, 58, 0.12));
  --calc-text-body: var(--color-text-body, #3F3D5C);
  --calc-white: #FFFFFF;

  --calc-font-heading: var(--font-heading, "Playfair Display", Georgia, serif);
  --calc-font-number: var(--font-number, "DM Serif Display", Georgia, serif);
  --calc-font-body: var(--font-body, "Gotham", "Montserrat", system-ui, sans-serif);
  --calc-font-tertiary: var(--font-tertiary, "Georgia Pro", Georgia, serif);

  --calc-radius-card: 16px;
  --calc-radius-pill: 9999px;
  --calc-shadow-card: 0 10px 30px -15px rgba(29, 27, 58, 0.08);
  --calc-shadow-result: 0 20px 45px -12px rgba(46, 42, 110, 0.38);
}

/* --------------------------------------------------------------------------
   2. PAGE WRAPPERS & HERO LAYOUT
   -------------------------------------------------------------------------- */
.page-calculators {
  background-color: var(--calc-ivory);
  color: var(--calc-ink);
  min-height: 100vh;
}

.calc-page-hero {
  padding-top: 4rem;
  padding-bottom: 5rem;
  border-bottom: 1px solid var(--calc-line);
}

@media (min-width: 640px) {
  .calc-page-hero {
    padding-top: 5rem;
    padding-bottom: 6rem;
  }
}

/* --------------------------------------------------------------------------
   3. CALCULATOR HUB PILL NAVIGATION (Suite Tab Switcher)
   -------------------------------------------------------------------------- */
.calc-hub-nav,
[role="tablist"][aria-label="Financial Calculators"] {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 2.5rem;
  padding: 6px;
  background-color: var(--calc-paper);
  border-radius: var(--calc-radius-pill);
  border: 1px solid var(--calc-line);
  width: fit-content;
  max-width: 100%;
}

.calc-hub-btn {
  padding: 8px 18px;
  border-radius: var(--calc-radius-pill);
  font-family: var(--calc-font-body);
  font-size: 13.5px;
  font-weight: 500;
  color: var(--calc-mist);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.2, 0.7, 0.2, 1);
  text-decoration: none;
  white-space: nowrap;
}

.calc-hub-btn:hover {
  color: var(--calc-ink);
}

.calc-hub-btn.is-active,
.calc-hub-btn[aria-selected="true"] {
  background-color: var(--calc-indigo) !important;
  color: var(--calc-ivory) !important;
  box-shadow: 0 4px 14px -2px rgba(46, 42, 110, 0.35);
}

/* --------------------------------------------------------------------------
   4. LANDING PAGE MODE TOGGLE PILLS (SIP vs Lumpsum)
   -------------------------------------------------------------------------- */
.calc-tab-wrap {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px;
  border-radius: var(--calc-radius-pill);
  background-color: var(--calc-paper);
  border: 1px solid var(--calc-line);
}

.calc-tab-btn {
  padding: 7px 18px;
  border-radius: var(--calc-radius-pill);
  font-family: var(--calc-font-body);
  font-size: 13px;
  font-weight: 500;
  color: var(--calc-ink);
  background: transparent;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.22s cubic-bezier(0.2, 0.7, 0.2, 1);
  white-space: nowrap;
}

.calc-tab-btn:hover {
  color: var(--calc-indigo);
  border-color: rgba(46, 42, 110, 0.25);
}

.calc-tab-btn.is-active,
.calc-tab-btn.active,
.calc-tab-btn[aria-pressed="true"],
.calc-tab-btn[aria-selected="true"] {
  background-color: var(--calc-indigo) !important;
  color: var(--calc-ivory) !important;
  border-color: var(--calc-indigo) !important;
  box-shadow: 0 4px 12px rgba(46, 42, 110, 0.25);
}

/* --------------------------------------------------------------------------
   5. TWO-COLUMN RESPONSIVE GRIDS (.calc-shell-grid, .calc-grid, #landingCalculator)
   -------------------------------------------------------------------------- */
.calc-shell-grid,
.landing-calc-grid,
#landingCalculator {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: start;
}

@media (min-width: 1024px) {
  .calc-shell-grid {
    grid-template-columns: 1fr 1.1fr;
    gap: 40px;
  }

  .landing-calc-grid,
  #landingCalculator {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

/* --------------------------------------------------------------------------
   6. LEFT CARD: INTERACTIVE INPUTS (.calc-card-inputs, .calc-inputs-card)
   -------------------------------------------------------------------------- */
.calc-card-inputs,
.calc-inputs-card,
.calc-inputs-section {
  background-color: var(--calc-white);
  border: 1px solid var(--calc-line);
  border-radius: var(--calc-radius-card);
  padding: 24px;
  display: grid;
  gap: 28px;
  box-shadow: var(--calc-shadow-card);
  align-content: flex-start;
  transition: box-shadow 0.3s ease;
}

@media (min-width: 640px) {
  .calc-card-inputs,
  .calc-inputs-card,
  .calc-inputs-section {
    padding: 32px;
  }
}

.calc-field,
.calc-group,
.input-group,
[data-range] {
  display: grid;
  gap: 10px;
}

.calc-field-top,
.calc-group-top,
.input-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.calc-field-label,
.calc-group-label,
.input-header label {
  font-family: var(--calc-font-body);
  font-size: 14px;
  font-weight: 500;
  color: var(--calc-ink);
  letter-spacing: -0.01em;
}

/* Value Input Box */
.calc-input-box,
.calc-num-input-wrap,
.glass-input-wrapper .input-box {
  display: flex;
  align-items: center;
  border: 1px solid var(--calc-line);
  border-radius: 8px;
  background-color: var(--calc-white);
  padding: 6px 14px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.calc-input-box:focus-within,
.calc-num-input-wrap:focus-within,
.glass-input-wrapper .input-box:focus-within {
  outline: none;
  border-color: var(--calc-raspberry);
  box-shadow: 0 0 0 2px rgba(222, 77, 122, 0.40);
}

.calc-input-prefix,
.calc-input-suffix,
.calc-num-unit,
.glass-input-wrapper .input-box span {
  font-family: var(--calc-font-body);
  font-size: 14px;
  font-weight: 500;
  color: var(--calc-mist);
}

.calc-input-prefix { margin-right: 4px; }
.calc-input-suffix { margin-left: 4px; }

.calc-num-input,
.glass-input-wrapper .input-box input {
  width: 96px;
  background: transparent;
  border: none;
  outline: none;
  text-align: right;
  font-family: var(--calc-font-body);
  font-size: 15px;
  font-weight: 600;
  color: var(--calc-indigo);
  -moz-appearance: textfield;
}

.calc-num-input::-webkit-outer-spin-button,
.calc-num-input::-webkit-inner-spin-button,
.glass-input-wrapper .input-box input::-webkit-outer-spin-button,
.glass-input-wrapper .input-box input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

/* --------------------------------------------------------------------------
   7. CUSTOM RANGE SLIDERS — PIXEL-PERFECT 1:1 REBUILD
   -------------------------------------------------------------------------- */
.calc-slider,
.calc-range-slider,
.dv-slider,
.modern-calc-slider,
input[type="range"].calc-slider,
input[type="range"].calc-range-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: var(--calc-radius-pill);
  outline: none;
  cursor: pointer;
  background: var(--calc-sand);
  margin-top: 6px;
  touch-action: pan-y;
  position: relative;
  transition: background 0.15s ease;
}

/* WebKit Track (Transparent so linear-gradient on element shows cleanly) */
.calc-slider::-webkit-slider-runnable-track,
.calc-range-slider::-webkit-slider-runnable-track,
.dv-slider::-webkit-slider-runnable-track,
.modern-calc-slider::-webkit-slider-runnable-track {
  height: 6px;
  border-radius: var(--calc-radius-pill);
  background: transparent;
  border: none;
}

/* WebKit Thumb */
.calc-slider::-webkit-slider-thumb,
.calc-range-slider::-webkit-slider-thumb,
.dv-slider::-webkit-slider-thumb,
.modern-calc-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  margin-top: -7px; /* Center 20px thumb on 6px track */
  border-radius: 50%;
  background: #FFFFFF;
  border: 2.5px solid var(--calc-raspberry);
  box-shadow: 0 2px 6px rgba(222, 77, 122, 0.35);
  cursor: grab;
  transition: transform 0.15s cubic-bezier(0.2, 0.7, 0.2, 1), box-shadow 0.15s ease, border-color 0.15s ease;
}

.calc-slider::-webkit-slider-thumb:hover,
.calc-range-slider::-webkit-slider-thumb:hover,
.dv-slider::-webkit-slider-thumb:hover,
.modern-calc-slider::-webkit-slider-thumb:hover {
  transform: scale(1.18);
  box-shadow: 0 4px 12px rgba(222, 77, 122, 0.50);
}

.calc-slider::-webkit-slider-thumb:active,
.calc-range-slider::-webkit-slider-thumb:active,
.dv-slider::-webkit-slider-thumb:active,
.modern-calc-slider::-webkit-slider-thumb:active {
  cursor: grabbing;
  transform: scale(1.05);
}

/* Firefox Track */
.calc-slider::-moz-range-track,
.calc-range-slider::-moz-range-track,
.dv-slider::-moz-range-track,
.modern-calc-slider::-moz-range-track {
  height: 6px;
  border-radius: var(--calc-radius-pill);
  background: transparent;
  border: none;
}

/* Firefox Thumb */
.calc-slider::-moz-range-thumb,
.calc-range-slider::-moz-range-thumb,
.dv-slider::-moz-range-thumb,
.modern-calc-slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #FFFFFF;
  border: 2.5px solid var(--calc-raspberry);
  box-shadow: 0 2px 6px rgba(222, 77, 122, 0.35);
  cursor: grab;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.calc-slider::-moz-range-thumb:hover,
.calc-range-slider::-moz-range-thumb:hover,
.dv-slider::-moz-range-thumb:hover,
.modern-calc-slider::-moz-range-thumb:hover {
  transform: scale(1.18);
  box-shadow: 0 4px 12px rgba(222, 77, 122, 0.50);
}

.calc-slider::-moz-range-thumb:active,
.calc-range-slider::-moz-range-thumb:active,
.dv-slider::-moz-range-thumb:active,
.modern-calc-slider::-moz-range-thumb:active {
  cursor: grabbing;
  transform: scale(1.05);
}

.calc-slider:focus-visible,
.calc-range-slider:focus-visible {
  outline: 2px solid rgba(222, 77, 122, 0.50);
  outline-offset: 4px;
}

/* Min-Max Labels Under Sliders */
.calc-slider-scale {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: monospace;
  font-size: 11px;
  color: var(--calc-mist);
  margin-top: 4px;
}

/* --------------------------------------------------------------------------
   8. RIGHT CARD: RESULTS CARD (Rich Indigo Surface)
   -------------------------------------------------------------------------- */
.calc-card-right {
  display: grid;
  gap: 24px;
  align-content: flex-start;
}

.calc-card-result,
.calc-results-card,
.glass-results-card {
  background-color: var(--calc-indigo);
  color: var(--calc-ivory);
  border-radius: var(--calc-radius-card);
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 340px;
  box-shadow: var(--calc-shadow-result);
  border: 1px solid rgba(251, 247, 240, 0.08);
}

@media (min-width: 640px) {
  .calc-card-result,
  .calc-results-card,
  .glass-results-card {
    padding: 34px 32px;
  }
}

.calc-result-eyebrow,
.calc-results-top .eyebrow {
  font-family: var(--calc-font-body);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-weight: 700;
  color: var(--calc-marigold);
  margin-bottom: 4px;
}

.calc-result-headline,
.calc-big-value,
#calcHeadlineVal,
#calcTotalValue {
  margin-top: 8px;
  font-family: var(--calc-font-number) !important;
  font-size: clamp(2.75rem, 4vw, 3.4rem);
  font-weight: 400;
  line-height: 1;
  color: var(--calc-ivory);
  letter-spacing: -0.02em;
}

/* Breakdown List */
.calc-result-list,
.calc-breakdown-list {
  margin-top: 24px;
  border-top: 1px solid rgba(251, 247, 240, 0.15);
  padding-top: 18px;
  display: grid;
  gap: 13px;
  font-size: 14px;
  list-style: none;
}

.calc-result-row,
.calc-breakdown-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.calc-result-row-label {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(251, 247, 240, 0.80);
  font-family: var(--calc-font-body);
  font-size: 14px;
}

.calc-result-row-val,
.calc-breakdown-row strong {
  font-family: var(--calc-font-body);
  font-weight: 600;
  color: var(--calc-ivory);
  text-align: right;
  font-size: 15px;
}

/* Color Indicator Swatches */
.calc-swatch,
.calc-dot {
  width: 10px;
  height: 10px;
  border-radius: 3px;
  display: inline-block;
  flex-shrink: 0;
}

.calc-swatch-sand,
.calc-dot.dot-invest {
  background-color: var(--calc-sand);
  border: 1px solid rgba(200, 135, 106, 0.40);
}

.calc-swatch-indigo {
  background-color: var(--calc-indigo);
  border: 1px solid rgba(251, 247, 240, 0.30);
}

.calc-swatch-marigold,
.calc-dot.dot-gain {
  background-color: var(--calc-marigold);
}

.calc-swatch-raspberry {
  background-color: var(--calc-raspberry);
}

.calc-note {
  margin-top: 20px;
  font-size: 12px;
  line-height: 1.5;
  color: rgba(251, 247, 240, 0.65);
}

/* --------------------------------------------------------------------------
   9. INTERACTIVE SVG GROWTH CHART CARD
   -------------------------------------------------------------------------- */
.calc-chart-card {
  border-radius: var(--calc-radius-card);
  border: 1px solid var(--calc-line);
  background-color: var(--calc-white);
  padding: 16px 20px;
  box-shadow: var(--calc-shadow-card);
}

.calc-chart-legend {
  margin-bottom: 12px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 20px;
  font-size: 12.5px;
  color: var(--calc-mist);
  font-family: var(--calc-font-body);
}

.calc-chart-legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.calc-chart-readout {
  margin-left: auto;
  font-weight: 500;
  color: var(--calc-ink);
  font-variant-numeric: tabular-nums;
}

.calc-chart-svg {
  width: 100%;
  height: auto;
  touch-action: pan-y;
  display: block;
}

.calc-disclaimer {
  margin-top: 24px;
  max-width: 90ch;
  font-size: 12px;
  line-height: 1.6;
  color: var(--calc-mist);
  font-family: var(--calc-font-body);
}

/* --------------------------------------------------------------------------
   10. TAB PANEL SHOW / HIDE ANIMATION
   -------------------------------------------------------------------------- */
.calc-panel-item {
  display: none;
}

.calc-panel-item.is-active {
  display: block;
  animation: calcFadeUp 0.35s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}

@keyframes calcFadeUp {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --------------------------------------------------------------------------
   11. BACKWARD COMPATIBILITY LAYER FOR STANDALONE VIEWS
   -------------------------------------------------------------------------- */
.calc-page-wrapper {
  min-height: 80vh;
  padding: 60px 16px 80px;
  background-color: var(--calc-ivory);
}

.glass-panel {
  background: var(--calc-white) !important;
  border: 1px solid var(--calc-line) !important;
  border-radius: var(--calc-radius-card) !important;
  box-shadow: var(--calc-shadow-card) !important;
}

.calc-container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 32px 24px;
}

@media (min-width: 768px) {
  .calc-container {
    padding: 48px;
  }
}

.calc-header {
  margin-bottom: 36px;
  text-align: center;
}

.calc-header h1 {
  font-family: var(--calc-font-heading);
  color: var(--calc-ink);
  font-size: clamp(2.25rem, 4vw, 3.25rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 12px;
}

.calc-header p {
  color: var(--calc-text-body);
  font-family: var(--calc-font-body);
  font-size: 16px;
  line-height: 1.6;
  max-width: 58ch;
  margin: 0 auto;
}

.calc-grid-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}

@media (min-width: 1024px) {
  .calc-grid-layout {
    grid-template-columns: 1.1fr 1fr;
    gap: 48px;
  }
}

.glass-orb {
  display: none !important;
}

/* Standalone + / - Buttons & Input Wrapper */
.glass-input-wrapper {
  display: flex;
  align-items: center;
  gap: 8px;
}

.val-btn {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background-color: var(--calc-paper);
  border: 1px solid var(--calc-line);
  color: var(--calc-indigo);
  display: inline-flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  font-size: 13px;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.val-btn:hover {
  background-color: var(--calc-raspberry);
  color: #FFFFFF;
  border-color: var(--calc-raspberry);
  transform: scale(1.06);
}

.val-btn:active {
  transform: scale(0.96);
}

/* Standalone Chart Container & Result Breakdown */
.calc-results-section {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.chart-container {
  position: relative;
  height: 280px;
  width: 100%;
  max-width: 320px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.result-breakdown {
  display: grid;
  gap: 12px;
  width: 100%;
}

.result-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 14px;
  border-radius: 8px;
  background-color: var(--calc-paper);
  border: 1px solid var(--calc-line);
  font-family: var(--calc-font-body);
  font-size: 14px;
}

.result-row .label {
  color: var(--calc-mist);
  display: flex;
  align-items: center;
  gap: 8px;
}

.result-row .value {
  font-weight: 600;
  color: var(--calc-indigo);
  font-size: 15px;
}