/*
 * The Oakland Project — Design System
 * European Modern / International Typographic Style
 * Tri-chromatic palette: Off-White, Charcoal, Civic Blue
 *
 * Color Contrast Summary (WCAG 2.2 AA):
 * - Charcoal on Off-White: ~15.3:1 ✓
 * - Civic Blue on Off-White: ~4.5:1 ✓
 * - White on Civic Blue: ~4.5:1 ✓
 * - White on Charcoal: ~15.3:1 ✓
 */

/* ============================================
   DESIGN TOKENS
   ============================================ */
:root {
  /* Colors — tri-chromatic only */
  --color-bg: #F8FAFC;
  --color-ink: #0F172A;
  --color-accent: #2563EB;

  /* Derived colors via opacity */
  --color-ink-90: rgba(15, 23, 42, 0.9);
  --color-ink-70: rgba(15, 23, 42, 0.7);
  --color-ink-50: rgba(15, 23, 42, 0.5);
  --color-ink-15: rgba(15, 23, 42, 0.15);
  --color-ink-12: rgba(15, 23, 42, 0.12);
  --color-ink-08: rgba(15, 23, 42, 0.08);
  --color-accent-15: rgba(37, 99, 235, 0.15);

  /* Typography */
  --font-family: 'Inter', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-weight-regular: 400;
  --font-weight-semibold: 600;

  /* Type scale */
  --text-base: 18px;
  --text-sm: 16px;
  --text-xs: 14px;
  --text-lg: 21px;
  --text-xl: 24px;
  --text-2xl: 30px;
  --text-3xl: 36px;
  --text-4xl: 48px;

  /* Line heights */
  --leading-tight: 1.35;
  --leading-normal: 1.5;

  /* Letter spacing */
  --tracking-tight: -0.01em;
  --tracking-normal: 0;
  --tracking-wide: 0.06em;

  /* Layout */
  --max-width: 1200px;
  --gutter: 24px;
  --section-spacing: 96px;
  --section-spacing-sm: 64px;

  /* Effects */
  --radius: 4px;
  --shadow: 0 1px 3px rgba(15, 23, 42, 0.08);

  /* Focus */
  --focus-ring: 0 0 0 3px var(--color-accent-15);
  --focus-outline: 2px solid var(--color-accent);
}

/* ============================================
   RESET & BASE
   ============================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: var(--text-base);
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  font-family: var(--font-family);
  font-weight: var(--font-weight-regular);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-ink);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: var(--font-weight-semibold);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--color-ink);
}

h1 {
  font-size: var(--text-4xl);
}

h2 {
  font-size: var(--text-3xl);
}

h3 {
  font-size: var(--text-2xl);
}

h4 {
  font-size: var(--text-xl);
}

p {
  margin-bottom: 1em;
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

a:hover {
  text-decoration: none;
}

a:focus-visible {
  outline: var(--focus-outline);
  outline-offset: 2px;
  border-radius: 2px;
}

.overline {
  display: block;
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-accent);
  margin-bottom: 8px;
}

/* ============================================
   LAYOUT
   ============================================ */
.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  z-index: 1000;
  padding: 12px 24px;
  background: var(--color-ink);
  color: var(--color-bg);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
  border-radius: var(--radius);
}

.skip-link:focus {
  top: 16px;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.section {
  padding-top: var(--section-spacing);
  padding-bottom: var(--section-spacing);
}

@media (max-width: 640px) {
  .section {
    padding-top: var(--section-spacing-sm);
    padding-bottom: var(--section-spacing-sm);
  }
}

/* 12-column grid */
.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--gutter);
}

.col-span-6 {
  grid-column: span 6;
}

.col-span-12 {
  grid-column: span 12;
}

@media (max-width: 1024px) {
  .col-span-6 {
    grid-column: span 12;
  }
}

/* ============================================
   HEADER / NAV
   ============================================ */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-ink-08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.wordmark {
  font-weight: var(--font-weight-semibold);
  font-size: var(--text-lg);
  color: var(--color-ink);
  text-decoration: none;
  letter-spacing: var(--tracking-tight);
}

.wordmark:hover {
  color: var(--color-ink);
}

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

.nav-link {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-regular);
  color: var(--color-ink-70);
  text-decoration: none;
  transition: color 0.15s ease;
}

.nav-link:hover,
.nav-link:focus {
  color: var(--color-ink);
}

.nav-link:focus-visible {
  outline: var(--focus-outline);
  outline-offset: 4px;
}

/* Mobile menu */
.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  border: none;
  cursor: pointer;
  position: relative;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-ink);
  position: absolute;
  left: 10px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.menu-toggle span:nth-child(1) {
  top: 16px;
}

.menu-toggle span:nth-child(2) {
  top: 21px;
}

.menu-toggle span:nth-child(3) {
  top: 26px;
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: rotate(45deg) translate(3px, 4px);
}

.menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: rotate(-45deg) translate(3px, -4px);
}

@media (max-width: 1024px) {
  .nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-ink-08);
    padding: 16px var(--gutter);
  }

  .nav.is-open {
    display: flex;
  }

  .nav-link {
    display: block;
    padding: 12px 0;
    width: 100%;
    border-bottom: 1px solid var(--color-ink-08);
  }

  .nav-link:last-child {
    border-bottom: none;
  }

  .menu-toggle {
    display: block;
  }
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  min-width: 44px;
  padding: 12px 24px;
  font-family: var(--font-family);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease, box-shadow 0.15s ease;
}

.btn:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring), 0 0 0 1px var(--color-accent);
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  border: none;
}

.btn-primary:hover {
  background: #1d4ed8;
}

.btn-ghost {
  background: transparent;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
}

.btn-ghost:hover {
  background: var(--color-accent-15);
}

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative;
  padding-top: 80px;
  padding-bottom: 80px;
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 640px;
}

.hero h1 {
  margin-bottom: 16px;
}

.hero-subtitle {
  font-size: var(--text-xl);
  color: var(--color-ink-70);
  margin-bottom: 32px;
  line-height: var(--leading-normal);
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}

.hero-cta .btn-ghost {
  border: none;
  padding-left: 0;
}

.hero-motif {
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  pointer-events: none;
}

.hero-motif svg {
  width: 100%;
  height: 100%;
}

@media (max-width: 1024px) {
  .hero-motif {
    opacity: 0.3;
    width: 70%;
  }
}

@media (max-width: 640px) {
  .hero {
    padding-top: 48px;
    padding-bottom: 48px;
  }

  .hero h1 {
    font-size: var(--text-3xl);
  }

  .hero-subtitle {
    font-size: var(--text-lg);
  }

  .hero-motif {
    display: none;
  }
}

/* ============================================
   SECTIONS
   ============================================ */
.section-header {
  margin-bottom: 48px;
}

.section-header h2 {
  max-width: 640px;
}

/* How It Works - 3 Column Grid */
.how-it-works-grid {
  display: grid;
  gap: 32px;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 24px;
}

.how-item {
  position: relative;
  padding-right: 16px;
}

.how-item h3 {
  font-size: var(--text-xl);
  margin-bottom: 12px;
  color: var(--color-ink);
}

.how-item p {
  font-size: var(--text-base);
  color: var(--color-ink-70);
  line-height: var(--leading-normal);
}

.how-icon {
  width: 40px;
  height: 40px;
  background: var(--color-accent-15);
  color: var(--color-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  margin-bottom: 20px;
}

@media (max-width: 768px) {
  .how-it-works-grid {
    grid-template-columns: 1fr;
  }
}

/* What we do - bullet list */
.bullet-list {
  list-style: none;
  display: grid;
  gap: 16px;
}

.bullet-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: var(--text-lg);
}

.bullet-list li::before {
  content: "";
  flex-shrink: 0;
  width: 8px;
  height: 8px;
  margin-top: 10px;
  background: var(--color-accent);
  border-radius: 50%;
}

/* Approach - principles */
.principles {
  display: grid;
  gap: 40px;
}

.principle {
  padding-bottom: 40px;
  border-bottom: 1px solid var(--color-ink-15);
}

.principle:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.principle-number {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-accent);
  margin-bottom: 8px;
}

.principle h3 {
  font-size: var(--text-xl);
  margin-bottom: 8px;
}

.principle p {
  color: var(--color-ink-70);
  max-width: 640px;
}

/* Program model - grid */
.model-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  background: var(--color-ink-15);
  border: 1px solid var(--color-ink-15);
  border-radius: var(--radius);
  overflow: hidden;
}

.model-item {
  background: var(--color-bg);
  padding: 24px;
}

.model-item dt {
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-ink-50);
  margin-bottom: 8px;
}

.model-item dd {
  font-size: var(--text-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-ink);
}

@media (max-width: 1024px) {
  .model-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 640px) {
  .model-grid {
    grid-template-columns: 1fr 1fr;
  }

  .model-item:last-child {
    grid-column: span 2;
  }
}

/* Rationale */
.rationale {
  max-width: 800px;
}

.rationale p {
  font-size: var(--text-lg);
  color: var(--color-ink-90);
  margin-bottom: 1.5em;
}

/* Partners */
.partners-list {
  list-style: none;
  display: grid;
  gap: 24px;
}

.partners-list li {
  padding: 20px 24px;
  background: #fff;
  border: 1px solid var(--color-ink-15);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.partners-list strong {
  display: block;
  margin-bottom: 4px;
  color: var(--color-ink);
}

.partners-list span {
  font-size: var(--text-sm);
  color: var(--color-ink-70);
}

@media (min-width: 640px) {
  .partners-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .partners-list {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Safeguards */
.safeguards-list {
  list-style: none;
  display: grid;
  gap: 16px;
  margin-bottom: 32px;
}

.safeguards-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.safeguards-list li::before {
  content: "✓";
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-accent);
  background: var(--color-accent-15);
  border-radius: 50%;
}

.statement {
  padding: 24px;
  background: var(--color-ink-08);
  border-left: 3px solid var(--color-accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: var(--text-sm);
  color: var(--color-ink-90);
  max-width: 800px;
}

/* ============================================
   FORM
   ============================================ */
.form-section {
  background: #fff;
  border: 1px solid var(--color-ink-15);
  border-radius: var(--radius);
  padding: 48px;
  box-shadow: var(--shadow);
  max-width: 640px;
}

@media (max-width: 640px) {
  .form-section {
    padding: 24px;
  }
}

.form-intro {
  margin-bottom: 32px;
}

.form-grid {
  display: grid;
  gap: 24px;
}

.form-row {
  display: grid;
  gap: 24px;
}

@media (min-width: 640px) {
  .form-row.two-col {
    grid-template-columns: 1fr 1fr;
  }
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-group label {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  margin-bottom: 6px;
  color: var(--color-ink);
}

.form-group label .required {
  color: var(--color-accent);
}

.form-group input,
.form-group textarea {
  font-family: var(--font-family);
  font-size: var(--text-base);
  padding: 12px 16px;
  border: 1px solid var(--color-ink-15);
  border-radius: var(--radius);
  background: var(--color-bg);
  color: var(--color-ink);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: var(--focus-ring);
}

.form-group input[aria-invalid="true"],
.form-group textarea[aria-invalid="true"] {
  border-color: #dc2626;
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.form-group .error-message {
  font-size: var(--text-xs);
  color: #dc2626;
  margin-top: 4px;
}

/* Honeypot */
.honeypot {
  position: absolute;
  left: -9999px;
  opacity: 0;
  pointer-events: none;
}

.form-submit {
  margin-top: 8px;
}

.form-success {
  display: none;
  padding: 24px;
  background: var(--color-accent-15);
  border-radius: var(--radius);
  text-align: center;
}

.form-success.is-visible {
  display: block;
}

.form-success p {
  font-weight: var(--font-weight-semibold);
  color: var(--color-accent);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  padding: 32px 0;
  border-top: 1px solid var(--color-ink-08);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.footer-text {
  font-size: var(--text-sm);
  color: var(--color-ink-50);
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-size: var(--text-sm);
  color: var(--color-ink-50);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--color-ink);
}

@media (max-width: 640px) {
  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ============================================
   DARK SECTIONS
   ============================================ */
.section-dark {
  background: var(--color-ink);
  color: #fff;
}

.section-dark .overline {
  color: var(--color-accent);
}

.section-dark h2,
.section-dark h3 {
  color: #fff;
}

/* ============================================
   STATS GRID (Investment Section)
   ============================================ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--color-ink-15);
  border: 1px solid var(--color-ink-15);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 48px;
}

.section-dark .stats-grid {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.1);
}

.stat-card {
  background: var(--color-bg);
  padding: 32px 24px;
  text-align: center;
}

.section-dark .stat-card {
  background: var(--color-ink);
}

.stat-number {
  font-size: var(--text-3xl);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--tracking-tight);
  color: var(--color-accent);
  margin-bottom: 8px;
}

.stat-label {
  font-size: var(--text-sm);
  color: var(--color-ink-70);
}

.section-dark .stat-label {
  color: rgba(255, 255, 255, 0.7);
}

@media (max-width: 1024px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .stat-card {
    padding: 24px 16px;
  }

  .stat-number {
    font-size: var(--text-2xl);
  }
}

/* ============================================
   BUDGET BREAKDOWN
   ============================================ */
.budget-section h3 {
  margin-bottom: 24px;
  font-size: var(--text-xl);
}

.budget-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.budget-item {
  display: grid;
  grid-template-columns: 120px 1fr auto;
  align-items: center;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.budget-item:last-child {
  border-bottom: none;
}

.budget-bar {
  height: 8px;
  background: var(--color-accent);
  border-radius: 4px;
  width: var(--bar-width, 0%);
}

.budget-details {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.budget-category {
  font-weight: var(--font-weight-semibold);
  color: #fff;
}

.budget-desc {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.6);
}

.budget-amount {
  font-size: var(--text-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-accent);
  min-width: 80px;
  text-align: right;
}

@media (max-width: 640px) {
  .budget-item {
    grid-template-columns: 1fr auto;
    gap: 12px;
  }

  .budget-bar {
    display: none;
  }
}

/* ============================================
   COST OF VIOLENCE
   ============================================ */
.cost-comparison {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.cost-card {
  background: #fff;
  border: 1px solid var(--color-ink-15);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
}

.cost-header {
  margin-bottom: 16px;
}

.cost-type {
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-ink-50);
}

.cost-amount {
  font-size: var(--text-4xl);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--tracking-tight);
  color: var(--color-ink);
  margin-bottom: 4px;
}

.cost-card-fatal .cost-amount {
  color: #dc2626;
}

.cost-note {
  font-size: var(--text-sm);
  color: var(--color-ink-50);
  margin-bottom: 24px;
}

.cost-breakdown {
  list-style: none;
  margin-bottom: 24px;
}

.cost-breakdown li {
  padding: 8px 0;
  border-bottom: 1px solid var(--color-ink-08);
  font-size: var(--text-sm);
  color: var(--color-ink-70);
}

.cost-breakdown li:last-child {
  border-bottom: none;
}

.cost-citation {
  position: relative;
}

.cost-citation cite {
  font-size: var(--text-xs);
  font-style: normal;
  color: var(--color-ink-50);
}

/* Tooltip */
.tooltip-trigger {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--color-accent-15);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-accent);
  cursor: pointer;
  transition: background-color 0.15s ease;
}

.tooltip-trigger:hover {
  background: rgba(37, 99, 235, 0.25);
}

.tooltip-trigger:focus-visible {
  outline: var(--focus-outline);
  outline-offset: 2px;
}

.tooltip-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  background: var(--color-accent);
  color: #fff;
  border-radius: 50%;
  font-size: 12px;
  font-style: italic;
}

.tooltip {
  display: none;
  position: absolute;
  bottom: 100%;
  left: 0;
  right: 0;
  margin-bottom: 8px;
  padding: 16px;
  background: var(--color-ink);
  color: #fff;
  border-radius: var(--radius);
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.2);
  z-index: 10;
}

.tooltip-trigger:focus+.tooltip,
.tooltip-trigger:hover+.tooltip,
.cost-citation:focus-within .tooltip {
  display: block;
}

.tooltip strong {
  color: var(--color-accent);
}

.tooltip cite {
  display: block;
  margin-top: 12px;
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.6);
}

/* Hidden cost callout */
.hidden-cost {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 24px;
  background: var(--color-ink-08);
  border-left: 3px solid var(--color-accent);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.hidden-cost-stat {
  font-size: var(--text-4xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-accent);
  flex-shrink: 0;
}

.hidden-cost-text {
  font-size: var(--text-sm);
  color: var(--color-ink-70);
}

.hidden-cost-text strong {
  color: var(--color-ink);
}

.hidden-cost-text cite {
  display: block;
  margin-top: 8px;
  font-style: normal;
  font-size: var(--text-xs);
  color: var(--color-ink-50);
}

@media (max-width: 1024px) {
  .cost-comparison {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .cost-card {
    padding: 24px;
  }

  .cost-amount {
    font-size: var(--text-3xl);
  }

  .hidden-cost {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
}

/* ============================================
   ROI CALCULATOR
   ============================================ */
.calculator {
  max-width: 900px;
  margin: 0 auto;
}

.calculator-input {
  margin-bottom: 48px;
}

.calculator-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  font-size: var(--text-lg);
  font-weight: var(--font-weight-semibold);
  color: #fff;
}

.calculator-output {
  font-size: var(--text-2xl);
  color: var(--color-accent);
}

/* Custom range slider */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 8px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 4px;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 24px;
  height: 24px;
  background: var(--color-accent);
  border: 3px solid #fff;
  border-radius: 50%;
  cursor: pointer;
  transition: transform 0.15s ease;
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.1);
}

input[type="range"]::-moz-range-thumb {
  width: 24px;
  height: 24px;
  background: var(--color-accent);
  border: 3px solid #fff;
  border-radius: 50%;
  cursor: pointer;
}

input[type="range"]:focus-visible {
  outline: none;
}

input[type="range"]:focus-visible::-webkit-slider-thumb {
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.5);
}

.slider-range {
  display: flex;
  justify-content: space-between;
  margin-top: 8px;
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.5);
}

/* Calculator results */
.calculator-results {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 24px;
  align-items: center;
  margin-bottom: 48px;
}

.result-card {
  padding: 32px;
  border-radius: var(--radius);
  text-align: center;
}

.result-investment {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.result-savings {
  background: var(--color-accent);
}

.result-label {
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 12px;
}

.result-value {
  font-size: var(--text-3xl);
  font-weight: var(--font-weight-semibold);
  color: #fff;
  margin-bottom: 8px;
}

.result-investment .result-value {
  color: var(--color-accent);
}

.result-detail {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.7);
}

.result-divider {
  display: flex;
  align-items: center;
  justify-content: center;
}

.result-divider span {
  font-size: var(--text-lg);
  font-weight: var(--font-weight-semibold);
  color: rgba(255, 255, 255, 0.5);
}

/* Calculator summary */
.calculator-summary {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 32px;
}

.summary-card {
  padding: 24px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  text-align: center;
}

.summary-label {
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 8px;
}

.summary-value {
  font-size: var(--text-4xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-accent);
}

.summary-detail {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.5);
  margin-top: 4px;
}

.calculator-note {
  padding: 20px 24px;
  background: rgba(37, 99, 235, 0.15);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius);
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.9);
  text-align: center;
}

.calculator-note strong {
  color: #fff;
}

@media (max-width: 1024px) {
  .calculator-results {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .result-divider {
    padding: 8px 0;
  }
}

@media (max-width: 640px) {
  .calculator-summary {
    grid-template-columns: 1fr;
  }

  .result-card {
    padding: 24px;
  }

  .result-value {
    font-size: var(--text-2xl);
  }

  .summary-value {
    font-size: var(--text-3xl);
  }
}