/* ViHealth Calculator - Full Page Styles */

/* CSS Variables */
:root {
  --vi-dark: #151B49;
  --vi-card-bg: #B8E0EC;
  --vi-input-dark: #1E2A5E;
  --vi-input-light: #D4EEF7;
  --vi-accent: #BCFFA5;
  --vi-primary: #13ab90;
  --vi-primary-dark: #0e8a73;
  --vi-white: #ffffff;
  --vi-gray-50: #f9fafb;
  --vi-gray-100: #f3f4f6;
  --vi-gray-200: #e5e7eb;
  --vi-gray-300: #d1d5db;
  --vi-gray-500: #6b7280;
  --vi-gray-600: #4b5563;
  --vi-gray-700: #374151;
  --vi-gray-900: #111827;
  --vi-error: #dc2626;
  --vi-success: #16a34a;
  --vi-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --vi-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --vi-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

/* Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--vi-white);
  background-color: var(--vi-dark);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Page Wrapper */
.vi-page-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Site Header */
.vi-site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--vi-dark);
  padding: 0 24px;
  position: relative;
  overflow: hidden;
}

.vi-site-header::before {
  content: '';
  position: absolute;
  top: -100%;
  right: 10%;
  width: 300px;
  height: 300px;
  background: radial-gradient(ellipse at center, rgba(188, 255, 165, 0.12) 0%, transparent 70%);
  filter: blur(30px);
  pointer-events: none;
}

.vi-header-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.vi-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.vi-logo svg {
  height: 32px;
  width: auto;
}

.vi-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.vi-nav a {
  color: var(--vi-white);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  transition: opacity 0.2s;
}

.vi-nav a:hover {
  opacity: 0.8;
}

.vi-nav-cta {
  background-color: var(--vi-primary) !important;
  padding: 10px 20px;
  border-radius: 6px;
  transition: background-color 0.2s !important;
}

.vi-nav-cta:hover {
  background-color: var(--vi-primary-dark) !important;
  opacity: 1 !important;
}

.vi-mobile-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.vi-mobile-menu-btn span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--vi-white);
  border-radius: 1px;
}

/* Page Hero */
.vi-page-hero {
  background: var(--vi-dark);
  padding: 80px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.vi-page-hero::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -15%;
  width: 700px;
  height: 700px;
  background: radial-gradient(ellipse at center, rgba(188, 255, 165, 0.25) 0%, rgba(188, 255, 165, 0.1) 30%, transparent 70%);
  filter: blur(40px);
  pointer-events: none;
}

.vi-page-hero::after {
  content: '';
  position: absolute;
  bottom: -40%;
  left: -15%;
  width: 600px;
  height: 600px;
  background: radial-gradient(ellipse at center, rgba(19, 171, 144, 0.2) 0%, rgba(188, 255, 165, 0.08) 40%, transparent 70%);
  filter: blur(50px);
  pointer-events: none;
}

.vi-hero-content {
  max-width: 800px;
  margin: 0 auto;
}

.vi-page-hero h1,
.vi-hero-headline {
  font-family: 'Playfair Display', serif;
  color: var(--vi-white);
  font-size: 3rem;
  font-weight: 600;
  margin-bottom: 16px;
  text-align: center;
}

.vi-page-hero p,
.vi-hero-subheading {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.125rem;
  font-weight: 400;
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
}

/* Main Content */
.vi-main-content {
  flex: 1;
  background-color: var(--vi-dark);
  padding: 60px 24px;
  position: relative;
  overflow: hidden;
}

/* Two-Column Layout */
.vi-main-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0;
  position: relative;
  z-index: 1;
}


.vi-left-column {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  padding-top: 0;
  padding-right: 40px;
}

.vi-right-column {
  position: relative;
  z-index: 1;
  padding-left: 20px;
}

/* Contact Column (Left) - Dark inputs */
.vi-contact-column {
  color: var(--vi-white);
}

.vi-contact-column .vi-form-group {
  margin-bottom: 20px;
}

.vi-contact-column label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--vi-white);
  font-size: 0.9375rem;
}

.vi-contact-column input:not([type="checkbox"]) {
  width: 100%;
  background-color: var(--vi-white);
  color: var(--vi-dark);
  border: none;
  padding: 14px 16px;
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  min-height: 52px;
  transition: box-shadow 0.2s;
}

.vi-contact-column input:not([type="checkbox"])::placeholder {
  color: rgba(21, 27, 73, 0.4);
}

.vi-contact-column input:not([type="checkbox"]):focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(188, 255, 165, 0.3);
}

.vi-contact-column .vi-error-message {
  display: block;
  font-size: 0.8125rem;
  color: #ff6b6b;
  margin-top: 6px;
  min-height: 20px;
}

/* Checkbox Group */
.vi-contact-column .vi-checkbox-group {
  margin-top: 8px;
}

.vi-contact-column .vi-checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  cursor: pointer;
  font-weight: 400;
  line-height: 1.5;
}

.vi-contact-column .vi-checkbox-label input[type="checkbox"] {
  -webkit-appearance: checkbox;
  -moz-appearance: checkbox;
  appearance: checkbox;
  width: 20px;
  height: 20px;
  min-width: 20px;
  min-height: 20px;
  margin-top: 2px;
  accent-color: var(--vi-primary);
  cursor: pointer;
}

.vi-contact-column .vi-checkbox-text {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.9);
}

/* Consent Section */
.vi-contact-column .vi-consent-section {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.vi-contact-column .vi-consent-intro {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 16px;
  line-height: 1.5;
}

.vi-contact-column .vi-consent-intro a {
  color: #BCFFA5;
  text-decoration: underline;
  font-weight: 500;
}

.vi-contact-column .vi-consent-intro a:hover {
  color: #D4FFB8;
}

.vi-consent-section .vi-checkbox-group {
  margin-bottom: 12px;
}

.vi-consent-section .vi-checkbox-group:last-child {
  margin-bottom: 0;
}

.vi-consent-section .vi-consent-unsubscribe {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 12px;
  margin-bottom: 12px;
  line-height: 1.4;
}

.vi-consent-section .vi-consent-unsubscribe a {
  color: #BCFFA5;
  text-decoration: underline;
}

.vi-consent-section .vi-consent-unsubscribe a:hover {
  color: #D4FFB8;
}

.vi-consent-section .vi-consent-submit-notice {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 12px;
  line-height: 1.4;
}

/* Calculator Card (Right Column) */
.vi-calculator-card {
  background-color: #B8E0EC;
  border-radius: 16px;
  padding: 32px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.vi-calculator-card h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--vi-dark);
  margin-bottom: 24px;
}

/* Calculator Card Inputs */
.vi-calculator-card .vi-form-group {
  margin-bottom: 20px;
}

.vi-calculator-card label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--vi-dark);
  font-size: 0.9375rem;
}

.vi-calculator-card input,
.vi-calculator-card select {
  width: 100%;
  background-color: var(--vi-input-light);
  color: var(--vi-dark);
  border: none;
  border-radius: 8px;
  padding: 14px 16px;
  font-size: 1rem;
  font-family: inherit;
  min-height: 52px;
  transition: box-shadow 0.2s;
}

.vi-calculator-card input::placeholder {
  color: rgba(21, 27, 73, 0.5);
}

.vi-calculator-card input:focus,
.vi-calculator-card select:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(21, 27, 73, 0.15);
}

.vi-calculator-card .vi-error-message {
  display: block;
  font-size: 0.8125rem;
  color: var(--vi-error);
  margin-top: 6px;
  min-height: 20px;
}

.vi-calculator-card .vi-helper-text {
  display: block;
  font-size: 0.8125rem;
  color: rgba(21, 27, 73, 0.6);
  margin-top: 6px;
}

/* Advanced params in card */
.vi-calculator-card .vi-advanced-params {
  margin-top: 24px;
  border: 1px solid rgba(21, 27, 73, 0.15);
  border-radius: 8px;
  overflow: hidden;
}

.vi-calculator-card .vi-advanced-params summary {
  padding: 14px 16px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--vi-dark);
  cursor: pointer;
  background: rgba(21, 27, 73, 0.05);
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
}

.vi-calculator-card .vi-advanced-params summary::-webkit-details-marker {
  display: none;
}

.vi-calculator-card .vi-advanced-params summary::before {
  content: '';
  width: 6px;
  height: 6px;
  border-right: 2px solid var(--vi-dark);
  border-bottom: 2px solid var(--vi-dark);
  transform: rotate(-45deg);
  transition: transform 0.2s;
}

.vi-calculator-card .vi-advanced-params[open] summary::before {
  transform: rotate(45deg);
}

.vi-calculator-card .vi-advanced-params summary:hover {
  background: rgba(21, 27, 73, 0.08);
}

.vi-calculator-card .vi-advanced-content {
  padding: 20px 16px;
  border-top: 1px solid rgba(21, 27, 73, 0.15);
}

.vi-calculator-card .vi-advanced-section {
  padding-bottom: 20px;
  margin-bottom: 20px;
  border-bottom: 1px solid rgba(21, 27, 73, 0.1);
}

.vi-calculator-card .vi-advanced-section:last-child {
  padding-bottom: 0;
  margin-bottom: 0;
  border-bottom: none;
}

.vi-calculator-card .vi-field-label {
  display: block;
  font-weight: 600;
  color: var(--vi-dark);
  font-size: 0.9375rem;
  margin-bottom: 12px;
}

.vi-calculator-card .vi-toggle-group {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.vi-calculator-card .vi-toggle-option {
  flex: 1;
  position: relative;
  cursor: pointer;
}

.vi-calculator-card .vi-toggle-option input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.vi-calculator-card .vi-toggle-option span {
  display: block;
  padding: 10px 16px;
  text-align: center;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--vi-dark);
  background: rgba(21, 27, 73, 0.05);
  border: 1px solid rgba(21, 27, 73, 0.15);
  border-radius: 6px;
  transition: all 0.2s;
}

.vi-calculator-card .vi-toggle-option input:checked + span {
  color: var(--vi-dark);
  background: rgba(188, 255, 165, 0.3);
  border-color: var(--vi-accent);
}

.vi-calculator-card .vi-slider-container {
  display: flex;
  align-items: center;
  gap: 16px;
}

.vi-calculator-card .vi-slider {
  flex: 1;
  height: 6px;
  -webkit-appearance: none;
  appearance: none;
  background: rgba(21, 27, 73, 0.15);
  border-radius: 3px;
  outline: none;
}

.vi-calculator-card .vi-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  background: var(--vi-dark);
  border-radius: 50%;
  cursor: pointer;
}

.vi-calculator-card .vi-slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  background: var(--vi-dark);
  border: none;
  border-radius: 50%;
  cursor: pointer;
}

.vi-calculator-card .vi-slider-value {
  min-width: 48px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--vi-dark);
  text-align: right;
}

.vi-calculator-card .vi-dual-input {
  display: flex;
  gap: 16px;
}

.vi-calculator-card .vi-input-pair {
  flex: 1;
}

.vi-calculator-card .vi-input-pair label {
  display: block;
  font-size: 0.8125rem;
  color: rgba(21, 27, 73, 0.7);
  margin-bottom: 6px;
  font-weight: 500;
}

.vi-calculator-card .vi-input-with-prefix {
  position: relative;
  display: flex;
  align-items: center;
}

.vi-calculator-card .vi-input-with-prefix input {
  padding-left: 28px;
}

.vi-calculator-card .vi-input-prefix {
  position: absolute;
  left: 12px;
  color: rgba(21, 27, 73, 0.6);
  font-weight: 500;
}

.vi-calculator-card .vi-input-with-suffix {
  position: relative;
  display: flex;
  align-items: center;
}

.vi-calculator-card .vi-input-with-suffix input {
  padding-right: 44px;
}

.vi-calculator-card .vi-input-suffix {
  position: absolute;
  right: 16px;
  color: rgba(21, 27, 73, 0.6);
  font-weight: 500;
}

/* Submit Button - ViHealth Green */
.vi-btn-submit {
  display: block;
  width: auto;
  margin: 24px auto 0;
  background-color: #13ab90;
  color: var(--vi-white);
  border: none;
  border-radius: 24px;
  padding: 14px 48px;
  font-size: 1rem;
  font-family: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s, transform 0.1s;
  min-height: 52px;
}

.vi-btn-submit:hover:not(:disabled) {
  background-color: #0e8a73;
}

.vi-btn-submit:active:not(:disabled) {
  transform: scale(0.98);
}

.vi-btn-submit:disabled {
  background-color: #13ab90;
  color: rgba(255, 255, 255, 0.7);
  cursor: not-allowed;
}

.vi-btn-submit.vi-btn-loading {
  background-color: #0e8a73;
  pointer-events: none;
}

/* Submission Messages */
.vi-submission-message {
  margin-top: 16px;
  padding: 14px 20px;
  border-radius: 8px;
  font-size: 0.9375rem;
  font-weight: 500;
  text-align: center;
}

.vi-submission-message.vi-success {
  background-color: rgba(188, 255, 165, 0.2);
  color: var(--vi-accent);
  border: 1px solid rgba(188, 255, 165, 0.3);
}

.vi-submission-message.vi-error {
  background-color: rgba(255, 107, 107, 0.15);
  color: #ff6b6b;
  border: 1px solid rgba(255, 107, 107, 0.3);
}

/* Reset Button */
.vi-btn-reset {
  width: 100%;
  background-color: var(--vi-accent);
  color: var(--vi-dark);
  border: none;
  border-radius: 24px;
  padding: 14px 32px;
  font-size: 1rem;
  font-family: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s, transform 0.1s;
  min-height: 52px;
  margin-top: 16px;
}

.vi-btn-reset:hover {
  background-color: #A8F090;
}

.vi-btn-reset:active {
  transform: scale(0.98);
}

/* Inline Results in Calculator Card */
.vi-calculator-results {
  text-align: center;
}

.vi-calculator-results .vi-result-impact {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--vi-dark);
  margin: 0 0 24px 0;
  padding: 20px;
  background: rgba(188, 255, 165, 0.3);
  border-radius: 12px;
  border: 1px solid rgba(188, 255, 165, 0.5);
}

.vi-calculator-results .vi-result-explanation {
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 24px;
  color: var(--vi-dark);
  text-align: left;
}

.vi-calculator-results .vi-data-breakdown {
  margin: 24px 0;
  padding: 20px;
  background: rgba(21, 27, 73, 0.05);
  border-radius: 10px;
  border: 1px solid rgba(21, 27, 73, 0.1);
  text-align: left;
}

.vi-calculator-results .vi-data-breakdown h3 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--vi-dark);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.vi-calculator-results .vi-data-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.vi-calculator-results .vi-data-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.vi-calculator-results .vi-data-label {
  font-size: 0.8125rem;
  color: rgba(21, 27, 73, 0.6);
}

.vi-calculator-results .vi-data-value {
  font-size: 1rem;
  font-weight: 600;
  color: var(--vi-dark);
}

.vi-calculator-results .vi-result-attribution {
  font-size: 0.875rem;
  color: rgba(21, 27, 73, 0.6);
  font-style: italic;
  text-align: left;
  margin-bottom: 16px;
}

@media (max-width: 480px) {
  .vi-calculator-results .vi-data-grid {
    grid-template-columns: 1fr;
  }
}

/* Calculator Widget */
.vi-calculator {
  --vi-primary-color: var(--vi-primary);
  --vi-primary-dark: var(--vi-primary-dark);
  --vi-secondary-color: var(--vi-gray-100);
  --vi-text-color: var(--vi-gray-900);
  --vi-text-light: var(--vi-gray-600);
  --vi-error-color: var(--vi-error);
  --vi-success-color: var(--vi-success);
  --vi-border-color: var(--vi-gray-200);

  max-width: 560px;
  margin: 0 auto;
  padding: 0;
  font-family: inherit;
  font-size: 16px;
  line-height: 1.6;
  color: var(--vi-text-color);
  background-color: transparent;
  border-radius: 0;
  position: relative;
  z-index: 1;
}

/* Progress indicator */
.vi-calculator .vi-progress {
  text-align: center;
  padding: 16px 0;
  margin-bottom: 24px;
  background: var(--vi-white);
  border-radius: 12px;
  box-shadow: var(--vi-shadow);
}

.vi-calculator .vi-progress-text {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--vi-gray-700);
}

.vi-calculator .vi-progress-current {
  color: var(--vi-primary);
  font-weight: 700;
}

/* Screens container */
.vi-calculator .vi-screens-container {
  position: relative;
  overflow: hidden;
  min-height: 480px;
}

/* Individual screens */
.vi-calculator .vi-screen {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  transform: translateX(100%);
  transition: transform 350ms ease-out;
  visibility: hidden;
}

.vi-calculator .vi-screen.active {
  position: relative;
  transform: translateX(0);
  visibility: visible;
}

.vi-calculator .vi-screen.exit-left {
  transform: translateX(-100%);
  visibility: visible;
}

.vi-calculator .vi-screen.exit-right {
  transform: translateX(100%);
  visibility: visible;
}

@media (prefers-reduced-motion: reduce) {
  .vi-calculator .vi-screen {
    transition: none;
  }
}

/* Intro section */
.vi-calculator .vi-intro {
  background: var(--vi-white);
  padding: 24px;
  border-radius: 12px;
  margin-bottom: 24px;
  box-shadow: var(--vi-shadow);
  text-align: center;
}

.vi-calculator .vi-intro p {
  color: var(--vi-gray-700);
  font-size: 1.0625rem;
  line-height: 1.75;
  font-weight: 450;
}

/* Calculator section */
.vi-calculator .vi-calculator-section {
  background: var(--vi-white);
  padding: 32px;
  border-radius: 12px;
  box-shadow: var(--vi-shadow);
}

/* Results section */
.vi-calculator .vi-results-section {
  background: var(--vi-white);
  padding: 32px;
  border-radius: 12px;
  box-shadow: var(--vi-shadow);
}

.vi-calculator .vi-results-section h2 {
  color: var(--vi-gray-900);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--vi-gray-200);
}

.vi-calculator .vi-results-content {
  margin-bottom: 24px;
}

.vi-calculator .vi-result-item {
  margin-bottom: 10px;
  color: var(--vi-text-light);
  font-size: 1rem;
}

.vi-calculator .vi-result-item strong {
  color: var(--vi-text-color);
  font-weight: 600;
}

.vi-calculator .vi-result-impact {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--vi-primary);
  margin: 24px 0;
  padding: 20px;
  background: linear-gradient(135deg, rgba(188, 255, 165, 0.15), rgba(19, 171, 144, 0.08));
  border-radius: 12px;
  text-align: center;
  border: 1px solid rgba(188, 255, 165, 0.3);
}

.vi-calculator .vi-result-explanation {
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 16px;
  color: var(--vi-gray-700);
}

.vi-calculator .vi-result-attribution {
  font-size: 0.875rem;
  color: var(--vi-text-light);
  font-style: italic;
}

/* Data breakdown section */
.vi-calculator .vi-data-breakdown {
  margin: 24px 0;
  padding: 20px;
  background: var(--vi-gray-50);
  border-radius: 10px;
  border: 1px solid var(--vi-gray-200);
}

.vi-calculator .vi-data-breakdown h3 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--vi-gray-700);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.vi-calculator .vi-data-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.vi-calculator .vi-data-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.vi-calculator .vi-data-label {
  font-size: 0.8125rem;
  color: var(--vi-text-light);
}

.vi-calculator .vi-data-value {
  font-size: 1rem;
  font-weight: 600;
  color: var(--vi-gray-900);
}

@media (max-width: 480px) {
  .vi-calculator .vi-data-grid {
    grid-template-columns: 1fr;
  }
}

/* Contact section */
.vi-calculator .vi-contact-section {
  background: var(--vi-white);
  padding: 32px;
  border-radius: 12px;
  box-shadow: var(--vi-shadow);
}

.vi-calculator .vi-contact-section h2 {
  color: var(--vi-gray-900);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.vi-calculator .vi-contact-intro {
  color: var(--vi-text-light);
  margin-bottom: 24px;
  font-size: 1rem;
}

/* Form styles */
.vi-calculator .vi-form-group {
  margin-bottom: 20px;
}

.vi-calculator .vi-form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--vi-text-color);
  font-size: 0.9375rem;
}

.vi-calculator .vi-form-group input,
.vi-calculator .vi-form-group select {
  width: 100%;
  padding: 14px 16px;
  font-size: 1rem;
  font-family: inherit;
  border: 1px solid var(--vi-border-color);
  border-radius: 8px;
  transition: border-color 0.2s, box-shadow 0.2s;
  min-height: 52px;
  background-color: var(--vi-white);
  color: var(--vi-text-color);
}

.vi-calculator .vi-form-group input:focus,
.vi-calculator .vi-form-group select:focus {
  outline: none;
  border-color: var(--vi-primary);
  box-shadow: 0 0 0 3px rgba(19, 171, 144, 0.15);
}

.vi-calculator .vi-form-group input.invalid,
.vi-calculator .vi-form-group select.invalid {
  border-color: var(--vi-error-color);
}

.vi-calculator .vi-input-with-suffix {
  position: relative;
  display: flex;
  align-items: center;
}

.vi-calculator .vi-input-with-suffix input {
  padding-right: 44px;
}

.vi-calculator .vi-input-suffix {
  position: absolute;
  right: 16px;
  color: var(--vi-text-light);
  font-weight: 500;
}

.vi-calculator .vi-helper-text {
  display: block;
  font-size: 0.8125rem;
  color: var(--vi-text-light);
  margin-top: 6px;
}

.vi-calculator .vi-error-message {
  display: block;
  font-size: 0.8125rem;
  color: var(--vi-error-color);
  margin-top: 6px;
  min-height: 20px;
}

/* Advanced parameters collapsible */
.vi-calculator .vi-advanced-params {
  margin-top: 24px;
  border: 1px solid var(--vi-gray-200);
  border-radius: 8px;
  overflow: hidden;
}

.vi-calculator .vi-advanced-params summary {
  padding: 14px 16px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--vi-gray-700);
  cursor: pointer;
  background: var(--vi-gray-50);
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
}

.vi-calculator .vi-advanced-params summary::-webkit-details-marker {
  display: none;
}

.vi-calculator .vi-advanced-params summary::before {
  content: '';
  width: 6px;
  height: 6px;
  border-right: 2px solid var(--vi-gray-500);
  border-bottom: 2px solid var(--vi-gray-500);
  transform: rotate(-45deg);
  transition: transform 0.2s;
}

.vi-calculator .vi-advanced-params[open] summary::before {
  transform: rotate(45deg);
}

.vi-calculator .vi-advanced-params summary:hover {
  background: var(--vi-gray-100);
}

.vi-calculator .vi-advanced-content {
  padding: 20px 16px;
  border-top: 1px solid var(--vi-gray-200);
}

.vi-calculator .vi-advanced-content .vi-form-group {
  margin-bottom: 0;
}

.vi-calculator .vi-advanced-section {
  padding-bottom: 20px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--vi-gray-200);
}

.vi-calculator .vi-advanced-section:last-child {
  padding-bottom: 0;
  margin-bottom: 0;
  border-bottom: none;
}

.vi-calculator .vi-dual-input {
  display: flex;
  gap: 16px;
}

.vi-calculator .vi-input-pair {
  flex: 1;
}

.vi-calculator .vi-input-pair label {
  display: block;
  font-size: 0.8125rem;
  color: var(--vi-text-light);
  margin-bottom: 6px;
}

.vi-calculator .vi-input-with-prefix {
  position: relative;
  display: flex;
  align-items: center;
}

.vi-calculator .vi-input-with-prefix input {
  padding-left: 28px;
}

.vi-calculator .vi-input-prefix {
  position: absolute;
  left: 12px;
  color: var(--vi-text-light);
  font-weight: 500;
}

.vi-calculator .vi-field-label {
  display: block;
  font-weight: 600;
  color: var(--vi-text-color);
  font-size: 0.9375rem;
  margin-bottom: 12px;
}

.vi-calculator .vi-toggle-group {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.vi-calculator .vi-toggle-option {
  flex: 1;
  position: relative;
  cursor: pointer;
}

.vi-calculator .vi-toggle-option input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.vi-calculator .vi-toggle-option span {
  display: block;
  padding: 10px 16px;
  text-align: center;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--vi-gray-600);
  background: var(--vi-gray-100);
  border: 1px solid var(--vi-gray-200);
  border-radius: 6px;
  transition: all 0.2s;
}

.vi-calculator .vi-toggle-option input:checked + span {
  color: var(--vi-primary);
  background: rgba(19, 171, 144, 0.1);
  border-color: var(--vi-primary);
}

.vi-calculator .vi-toggle-option:hover span {
  border-color: var(--vi-gray-300);
}

/* Slider styles */
.vi-calculator .vi-slider-container {
  display: flex;
  align-items: center;
  gap: 16px;
}

.vi-calculator .vi-slider {
  flex: 1;
  height: 6px;
  -webkit-appearance: none;
  appearance: none;
  background: var(--vi-gray-200);
  border-radius: 3px;
  outline: none;
}

.vi-calculator .vi-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  background: var(--vi-primary);
  border-radius: 50%;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
}

.vi-calculator .vi-slider::-webkit-slider-thumb:hover {
  transform: scale(1.1);
  box-shadow: 0 0 0 4px rgba(19, 171, 144, 0.2);
}

.vi-calculator .vi-slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  background: var(--vi-primary);
  border: none;
  border-radius: 50%;
  cursor: pointer;
}

.vi-calculator .vi-slider-value {
  min-width: 48px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--vi-primary);
  text-align: right;
}

/* Buttons */
.vi-calculator .vi-btn {
  padding: 14px 28px;
  font-size: 1rem;
  font-family: inherit;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
  min-height: 52px;
}

.vi-calculator .vi-btn:active {
  transform: scale(0.98);
}

.vi-calculator .vi-btn-primary {
  background-color: var(--vi-primary);
  color: var(--vi-white);
}

.vi-calculator .vi-btn-primary:hover:not(:disabled) {
  background-color: var(--vi-dark);
  color: var(--vi-white);
}

.vi-calculator .vi-btn-primary:disabled {
  background-color: var(--vi-gray-300);
  cursor: not-allowed;
}

.vi-calculator .vi-btn-secondary {
  background-color: var(--vi-white);
  color: var(--vi-gray-700);
  border: 1px solid var(--vi-gray-300);
}

.vi-calculator .vi-btn-secondary:hover {
  background-color: var(--vi-gray-50);
  border-color: var(--vi-gray-400);
}

.vi-calculator .vi-button-group {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.vi-calculator .vi-button-group .vi-btn {
  flex: 1;
  min-width: 140px;
}

/* Success message */
.vi-calculator .vi-success-message {
  text-align: center;
  padding: 32px;
}

.vi-calculator .vi-success-icon {
  font-size: 1.25rem;
  color: var(--vi-success);
  margin-bottom: 16px;
  font-weight: 600;
}

.vi-calculator .vi-success-message p {
  margin-bottom: 16px;
  color: var(--vi-text-color);
}

/* Calculator Footer */
.vi-calc-footer {
  text-align: center;
  padding: 24px 0 0;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.8125rem;
  max-width: 1200px;
  margin: 24px auto 0;
}

.vi-calc-footer p {
  margin-bottom: 4px;
}

/* No JS message */
.vi-calculator .no-js-message {
  background: #fef3c7;
  color: #92400e;
  padding: 16px;
  border-radius: 8px;
  text-align: center;
  margin-bottom: 24px;
}

/* Site Footer */
.vi-site-footer {
  background-color: var(--vi-white);
  border-top: 1px solid var(--vi-gray-200);
  padding: 60px 24px 0;
}

.vi-footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 60px;
  padding-bottom: 48px;
}

.vi-footer-brand {
  max-width: 280px;
}

.vi-footer-brand svg {
  height: 32px;
  width: auto;
  margin-bottom: 16px;
}

.vi-footer-tagline {
  color: var(--vi-gray-600);
  font-size: 0.9375rem;
  line-height: 1.6;
}

.vi-footer-links {
  display: flex;
  gap: 80px;
}

.vi-footer-column {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.vi-footer-column h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--vi-gray-900);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.vi-footer-column a {
  color: var(--vi-gray-600);
  text-decoration: none;
  font-size: 0.9375rem;
  transition: color 0.2s;
}

.vi-footer-column a:hover {
  color: var(--vi-primary);
}

.vi-footer-bottom {
  border-top: 1px solid var(--vi-gray-200);
  padding: 24px;
  text-align: center;
}

.vi-footer-bottom p {
  color: var(--vi-gray-500);
  font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  .vi-nav {
    display: none;
  }

  .vi-mobile-menu-btn {
    display: flex;
  }

  .vi-page-hero {
    padding: 48px 24px;
  }

  .vi-page-hero h1,
  .vi-hero-headline {
    font-size: 2rem;
  }

  .vi-page-hero p,
  .vi-hero-subheading {
    font-size: 1rem;
  }

  .vi-main-content {
    padding: 40px 16px;
  }

  /* Two-column becomes single column on mobile */
  .vi-main-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  /* Contact form first on mobile */
  .vi-contact-column {
    order: -1;
    padding-top: 0;
    padding-right: 0;
  }

  /* Reset right column margin on mobile */
  .vi-right-column {
    margin-top: 0;
    padding-left: 0;
  }

  .vi-calculator-card {
    padding: 24px;
  }

  .vi-calculator-card input,
  .vi-calculator-card select,
  .vi-btn-submit,
  .vi-btn-reset {
    min-height: 44px;
  }

  .vi-contact-column input:not([type="checkbox"]) {
    min-height: 44px;
  }

  .vi-footer-container {
    flex-direction: column;
    gap: 40px;
  }

  .vi-footer-links {
    flex-wrap: wrap;
    gap: 32px;
  }

  .vi-footer-column {
    min-width: 140px;
  }
}

@media (max-width: 480px) {
  .vi-header-container {
    height: 60px;
  }

  .vi-page-hero {
    padding: 36px 16px;
  }

  .vi-page-hero h1,
  .vi-hero-headline {
    font-size: 1.75rem;
  }

  .vi-main-content {
    padding: 32px 12px;
  }

  .vi-main-layout {
    gap: 24px;
  }

  .vi-calculator-card {
    padding: 20px;
    border-radius: 12px;
  }

  .vi-calculator-card .vi-result-impact {
    font-size: 1.125rem;
    padding: 16px;
  }

  .vi-site-footer {
    padding: 40px 16px 0;
  }

  .vi-footer-links {
    gap: 24px;
  }
}