/**
 * PetPro Macros - High-Performance, Accessible CSS
 * 
 * Ergonomics: Presbyopia-First (18px+ text, 52px+ touch targets, WCAG AAA contrast).
 * Modern Web: Native dialog, inert styling, user-invalid triggers, zero-framework layout.
 */

:root {
  /* Color Palette - WCAG AAA Contrast (>= 7:1) */
  --color-primary: #15803d;        /* Deep Forest Green */
  --color-primary-hover: #166534;  /* Darker Forest Green */
  --color-primary-light: #f0fdf4;  /* Mint tint */
  --color-primary-border: #86efac;
  
  --color-secondary: #0369a1;      /* Deep Ocean Blue */
  --color-secondary-hover: #075985;
  --color-secondary-light: #f0f9ff;

  --color-text-main: #0f172a;       /* Slate 900 - maximum readability */
  --color-text-muted: #334155;      /* Slate 700 - high contrast subtext */
  --color-text-light: #64748b;      /* Slate 500 */
  
  --color-bg-page: #f8fafc;        /* Slate 50 */
  --color-bg-card: #ffffff;
  --color-bg-subtle: #f1f5f9;      /* Slate 100 */
  
  --color-border: #cbd5e1;         /* Slate 300 - clear borders */
  --color-border-focus: #15803d;
  
  --color-warning-bg: #fffbeb;
  --color-warning-border: #fcd34d;
  --color-warning-text: #92400e;
  
  --color-accent-amber: #b45309;
  --color-danger: #b91c1c;
  --color-danger-bg: #fef2f2;
  
  /* Typography */
  --font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-size-base: 18px;          /* Presbyopia baseline */
  --line-height-base: 1.55;
  
  /* Layout & Spacing */
  --touch-target-min: 52px;        /* Presbyopia ergonomic target */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-pill: 9999px;
  --shadow-card: 0 4px 12px rgba(15, 23, 42, 0.08), 0 1px 3px rgba(15, 23, 42, 0.05);
  --shadow-elevated: 0 10px 25px -5px rgba(15, 23, 42, 0.12), 0 8px 10px -6px rgba(15, 23, 42, 0.06);
}

/* Box-Sizing Reset & Zero Horizontal Scroll Guarantee */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 18px;
  scroll-behavior: smooth;
  text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--color-text-main);
  background-color: var(--color-bg-page);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  width: 100%;
}

/* Inert background handling for modal focus isolation */
[inert] {
  user-select: none;
  -webkit-user-select: none;
  pointer-events: none;
  opacity: 0.6;
}

/* Typography Hierarchy */
h1, h2, h3, h4 {
  color: var(--color-text-main);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.015em;
}

h1 {
  font-size: 2.1rem;
  margin-bottom: 0.5rem;
}

h2 {
  font-size: 1.6rem;
  margin-bottom: 0.75rem;
}

h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

p {
  margin-bottom: 1rem;
  color: var(--color-text-muted);
}

a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
  font-weight: 600;
}

a:hover, a:focus-visible {
  color: var(--color-primary-hover);
}

/* Layout Containers */
.top-bar {
  background-color: #0f172a;
  color: #ffffff;
  padding: 12px 20px;
  text-align: center;
  font-size: 0.95rem;
  font-weight: 600;
}

.top-bar-inner {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

.top-bar-badge {
  background-color: var(--color-primary);
  color: #ffffff;
  font-size: 0.8rem;
  padding: 2px 10px;
  border-radius: var(--radius-pill);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 700;
}

.hero-header {
  padding: 40px 20px 24px;
  text-align: center;
  background: linear-gradient(180deg, #ffffff 0%, var(--color-bg-page) 100%);
  border-bottom: 1px solid var(--color-border);
}

.header-container {
  max-width: 760px;
  margin: 0 auto;
}

.brand-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--color-primary-light);
  border: 1px solid var(--color-primary-border);
  color: var(--color-primary);
  font-size: 0.9rem;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 16px;
}

.hero-title {
  color: #0f172a;
  margin-bottom: 12px;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  max-width: 620px;
  margin: 0 auto 12px;
}

.main-content {
  flex: 1;
  max-width: 860px;
  width: 100%;
  margin: 0 auto;
  padding: 24px 20px 60px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* Card Component */
.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-card);
  width: 100%;
  min-inline-size: 0;
}

@media (max-width: 600px) {
  .card {
    padding: 22px 18px;
    border-radius: var(--radius-md);
  }
}

.card-title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 6px;
}

.card-subtitle {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin-bottom: 24px;
}

/* Form Styles */
.calculator-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-inline-size: 0;
  width: 100%;
}

.form-label {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text-main);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.form-hint {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--color-text-light);
}

/* Weight Input Row with Unit Switcher */
.weight-input-container {
  display: flex;
  gap: 10px;
  align-items: stretch;
  width: 100%;
}

.weight-input-wrapper {
  position: relative;
  flex: 1;
}

.input-text, .input-number {
  width: 100%;
  min-height: var(--touch-target-min);
  padding: 12px 16px;
  font-size: 1.25rem;
  font-weight: 600;
  font-family: inherit;
  color: var(--color-text-main);
  background-color: #ffffff;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  appearance: textfield;
  -moz-appearance: textfield;
}

.input-number::-webkit-outer-spin-button,
.input-number::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.input-text:focus, .input-number:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(21, 128, 61, 0.18);
}

/* Modern Validation Feedback */
.input-number:user-invalid,
.input-text:user-invalid {
  border-color: var(--color-danger) !important;
  background-color: var(--color-danger-bg) !important;
}

.input-number:user-valid:not(:placeholder-shown) {
  border-color: var(--color-primary) !important;
}

.validation-msg {
  display: none;
  color: var(--color-danger);
  font-size: 0.9rem;
  font-weight: 600;
  margin-top: 4px;
}

.input-number:user-invalid + .validation-msg {
  display: block;
}

/* Unit Toggle Segmented Control */
.unit-toggle-group {
  display: inline-flex;
  background-color: var(--color-bg-subtle);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 4px;
  gap: 4px;
  min-height: var(--touch-target-min);
  align-self: flex-start;
}

.unit-toggle-btn {
  background: transparent;
  border: none;
  padding: 0 20px;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text-muted);
  border-radius: var(--radius-sm);
  cursor: pointer;
  min-height: 42px;
  transition: all 0.15s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.unit-toggle-btn.active {
  background-color: #ffffff;
  color: var(--color-text-main);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  border: 1px solid var(--color-border);
}

.unit-toggle-btn:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

/* Accessible Fieldset & Pill Radiogroup (Presbyopia Ergonomics) */
.form-pill-fieldset {
  border: none;
  margin: 0;
  padding: 0;
  min-inline-size: 0;
  width: 100%;
}

.form-pill-fieldset legend {
  display: block;
  width: 100%;
  margin-bottom: 12px;
  padding: 0;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--color-text-main);
}

.pill-selector-grid {
  clear: both;
  display: grid;
  width: 100%;
  gap: 12px;
}

.pill-grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.pill-grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

@media (max-width: 480px) {
  .pill-grid-2, .pill-grid-4 {
    grid-template-columns: 1fr;
  }
}

.pill-btn {
  background-color: #ffffff;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  min-height: var(--touch-target-min);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
  cursor: pointer;
  transition: all 0.15s ease;
  font-family: inherit;
  position: relative;
}

.pill-btn:hover {
  border-color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.pill-btn:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

.pill-btn.active {
  border-color: var(--color-primary);
  background-color: var(--color-primary-light);
  box-shadow: 0 0 0 2px var(--color-primary-border);
}

.pill-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: 8px;
  margin-bottom: 4px;
}

.pill-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text-main);
  display: flex;
  align-items: center;
  gap: 8px;
}

.pill-badge {
  font-size: 0.85rem;
  font-weight: 700;
  background-color: #e2e8f0;
  color: #334155;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
}

.pill-btn.active .pill-badge {
  background-color: var(--color-primary);
  color: #ffffff;
}

.pill-desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.35;
}

/* Primary Action Buttons */
.btn-primary {
  width: 100%;
  min-height: var(--touch-target-min);
  background-color: var(--color-primary);
  color: #ffffff;
  border: none;
  border-radius: var(--radius-md);
  font-size: 1.15rem;
  font-weight: 700;
  font-family: inherit;
  padding: 16px 24px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  box-shadow: 0 4px 6px -1px rgba(21, 128, 61, 0.25);
  transition: transform 0.1s ease, background-color 0.15s ease, box-shadow 0.15s ease;
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  box-shadow: 0 6px 12px -2px rgba(21, 128, 61, 0.35);
}

.btn-primary:active {
  transform: scale(0.985);
}

.btn-primary:focus-visible {
  outline: 3px solid #0f172a;
  outline-offset: 3px;
}

.btn-secondary {
  min-height: var(--touch-target-min);
  background-color: #ffffff;
  color: var(--color-text-main);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 700;
  font-family: inherit;
  padding: 12px 20px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: all 0.15s ease;
}

.btn-secondary:hover {
  border-color: var(--color-primary);
  background-color: var(--color-bg-subtle);
}

.btn-secondary:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

/* RESULTS CARD (High Visibility & Clear Hierarchy) */
.results-card {
  display: none; /* Revealed dynamically */
  background: #ffffff;
  border: 2px solid var(--color-primary-border);
  box-shadow: var(--shadow-elevated);
}

.results-header-banner {
  background: linear-gradient(135deg, var(--color-primary-light) 0%, #ffffff 100%);
  border: 1px solid var(--color-primary-border);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.target-highlight-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 540px) {
  .target-highlight-grid {
    grid-template-columns: 1fr;
  }
}

.target-block {
  background-color: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: center;
}

.target-block.primary-highlight {
  border-color: var(--color-primary);
  background-color: #ffffff;
  box-shadow: 0 4px 6px -1px rgba(21, 128, 61, 0.1);
}

.target-label {
  font-size: 0.95rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-light);
  margin-bottom: 6px;
}

.target-number {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.1;
}

.target-subtext {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-muted);
  margin-top: 4px;
}

/* Component Macro Breakdown List */
.macro-list-container {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 28px;
}

.macro-card-item {
  background-color: var(--color-bg-page);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: border-color 0.15s ease;
}

.macro-card-item:hover {
  border-color: var(--color-primary);
}

.macro-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.macro-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text-main);
  display: flex;
  align-items: center;
  gap: 10px;
}

.macro-percent-tag {
  font-size: 0.85rem;
  font-weight: 700;
  background-color: #e2e8f0;
  padding: 3px 8px;
  border-radius: var(--radius-pill);
  color: #1e293b;
}

.macro-values-dual {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-weight: 700;
}

.val-daily {
  font-size: 1.25rem;
  color: var(--color-primary);
}

.val-weekly {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  background-color: #ffffff;
  border: 1px solid var(--color-border);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
}

.macro-examples {
  font-size: 0.88rem;
  color: var(--color-text-muted);
}

/* Sub-organ breakdown row for PMR */
.organ-sub-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 6px;
  padding-top: 8px;
  border-top: 1px dashed var(--color-border);
}

.organ-sub-item {
  font-size: 0.88rem;
  background-color: #ffffff;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

.organ-sub-title {
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 2px;
}

/* Results Actions Toolbar */
.results-actions-bar {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
}

.results-actions-bar .btn-secondary {
  flex: 1;
  min-width: 200px;
}

/* "PREP TIME REALITY" CALLOUT CARD */
.reality-card {
  background: #ffffff;
  border: 2px solid var(--color-warning-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-card);
}

@media (max-width: 600px) {
  .reality-card {
    padding: 22px 18px;
  }
}

.reality-header {
  text-align: center;
  margin-bottom: 24px;
}

.reality-badge {
  background-color: var(--color-warning-bg);
  border: 1px solid var(--color-warning-border);
  color: var(--color-warning-text);
  font-size: 0.85rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: inline-block;
  margin-bottom: 10px;
}

.reality-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 24px;
}

@media (max-width: 680px) {
  .reality-grid {
    grid-template-columns: 1fr;
  }
}

.reality-column {
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.reality-diy {
  background-color: #fff7ed;
  border: 1px solid #ffedd5;
}

.reality-delivery {
  background-color: var(--color-primary-light);
  border: 2px solid var(--color-primary-border);
  box-shadow: 0 4px 6px -1px rgba(21, 128, 61, 0.12);
}

.reality-col-title {
  font-size: 1.15rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
}

.reality-diy .reality-col-title {
  color: #9a3412;
}

.reality-delivery .reality-col-title {
  color: var(--color-primary);
}

.reality-stat-hero {
  font-size: 1.7rem;
  font-weight: 800;
  margin-bottom: 6px;
}

.reality-diy .reality-stat-hero {
  color: #c2410c;
}

.reality-delivery .reality-stat-hero {
  color: var(--color-primary);
}

.reality-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 6px;
}

.reality-list li {
  font-size: 0.95rem;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  line-height: 1.4;
  color: var(--color-text-main);
}

.reality-list .icon-x {
  color: #dc2626;
  font-weight: 800;
}

.reality-list .icon-check {
  color: var(--color-primary);
  font-weight: 800;
}

/* MULTI-AFFILIATE OFFERS SECTION */
.affiliates-section {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 8px;
}

.affiliate-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

.affiliate-card {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-card);
  position: relative;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.affiliate-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-elevated);
}

.affiliate-card.featured {
  border: 2px solid var(--color-primary);
  background: linear-gradient(180deg, #ffffff 0%, var(--color-primary-light) 100%);
}

.featured-ribbon {
  position: absolute;
  top: -12px;
  left: 20px;
  background-color: var(--color-primary);
  color: #ffffff;
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  box-shadow: 0 2px 4px rgba(0,0,0,0.15);
}

.affiliate-card-header {
  margin-bottom: 12px;
  margin-top: 6px;
}

.affiliate-tag {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  display: block;
  margin-bottom: 4px;
}

.affiliate-title {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--color-text-main);
  margin-bottom: 8px;
}

.affiliate-badge {
  display: inline-block;
  background-color: #fef08a;
  color: #854d0e;
  font-size: 0.9rem;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
}

.affiliate-body {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  margin-bottom: 20px;
}

.affiliate-cta-btn {
  width: 100%;
  min-height: var(--touch-target-min);
  background-color: var(--color-primary);
  color: #ffffff;
  border: none;
  border-radius: var(--radius-md);
  font-size: 1.05rem;
  font-weight: 700;
  padding: 14px 16px;
  text-align: center;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  cursor: pointer;
  transition: background-color 0.15s ease, transform 0.1s ease;
}

.affiliate-cta-btn:hover {
  background-color: var(--color-primary-hover);
  color: #ffffff;
  text-decoration: none;
}

.affiliate-cta-btn:active {
  transform: scale(0.98);
}

.affiliate-cta-btn:focus-visible {
  outline: 3px solid #0f172a;
  outline-offset: 3px;
}

/* Secondary affiliate button style */
.affiliate-card:not(.featured) .affiliate-cta-btn {
  background-color: #0f172a;
}

.affiliate-card:not(.featured) .affiliate-cta-btn:hover {
  background-color: #1e293b;
}

/* NATIVE EXCLUSIVE FAQ ACCORDIONS */
.faq-section {
  margin-top: 10px;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background-color: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.15s ease;
}

.faq-item[open] {
  border-color: var(--color-primary);
  box-shadow: 0 2px 6px rgba(0,0,0,0.04);
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text-main);
  cursor: pointer;
  min-height: var(--touch-target-min);
  list-style: none;
  user-select: none;
}

.faq-question::-webkit-details-marker,
.faq-question::marker {
  display: none;
}

.faq-question:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: -2px;
}

.faq-icon {
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--color-text-light);
  transition: transform 0.2s ease;
  line-height: 1;
}

.faq-item[open] .faq-icon {
  transform: rotate(45deg);
  color: var(--color-primary);
}

.faq-answer {
  padding: 0 20px 20px;
  font-size: 1rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ACCESSIBLE LEAD CAPTURE MODAL (<dialog>) */
dialog#leadModal {
  margin: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  max-width: 520px;
  width: calc(100% - 32px);
  background-color: #ffffff;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.25), 0 10px 10px -5px rgba(0, 0, 0, 0.1);
}

@media (max-width: 480px) {
  dialog#leadModal {
    padding: 24px 18px;
  }
}

dialog#leadModal::backdrop {
  background-color: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
}

.modal-close-btn {
  background: transparent;
  border: none;
  font-size: 1.7rem;
  line-height: 1;
  color: var(--color-text-light);
  cursor: pointer;
  min-width: 44px;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: color 0.15s ease;
}

.modal-close-btn:hover {
  color: var(--color-text-main);
  background-color: var(--color-bg-subtle);
}

.modal-close-btn:focus-visible {
  outline: 3px solid var(--color-primary);
}

.modal-body {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.modal-alert {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  display: none;
}

.modal-alert.success {
  display: block;
  background-color: var(--color-primary-light);
  border: 1px solid var(--color-primary-border);
  color: var(--color-primary-hover);
}

.modal-alert.error {
  display: block;
  background-color: var(--color-danger-bg);
  border: 1px solid #fecaca;
  color: var(--color-danger);
}

/* Footer & Disclaimers */
.app-footer {
  background-color: #0f172a;
  color: #94a3b8;
  padding: 40px 20px;
  font-size: 0.9rem;
  line-height: 1.6;
  border-top: 1px solid #334155;
  margin-top: auto;
}

.footer-inner {
  max-width: 860px;
  margin: 0 auto;
  text-align: center;
}

.footer-inner p {
  color: #94a3b8;
  margin-bottom: 12px;
}

.footer-disclaimer {
  font-size: 0.85rem;
  color: #64748b;
  border-top: 1px solid #1e293b;
  padding-top: 16px;
  margin-top: 16px;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 16px;
}

.footer-links a {
  color: #cbd5e1;
  text-decoration: none;
}

.footer-links a:hover {
  color: #ffffff;
  text-decoration: underline;
}

/* 1-CLICK PRINTABLE STYLESHEET (Clean, Professional Prep Sheet) */
@media print {
  /* Hide all non-printable UI elements */
  .top-bar,
  .hero-header,
  .calculator-card,
  .reality-card,
  .affiliates-section,
  .faq-section,
  .app-footer,
  .results-actions-bar,
  .unit-toggle-group,
  dialog,
  button {
    display: none !important;
  }

  body {
    background-color: #ffffff !important;
    color: #000000 !important;
    font-size: 14pt !important;
    line-height: 1.4 !important;
    padding: 0 !important;
  }

  .main-content {
    max-width: 100% !important;
    padding: 0 !important;
    margin: 0 !important;
  }

  .results-card {
    display: block !important;
    border: none !important;
    box-shadow: none !important;
    padding: 0 !important;
  }

  .print-only-header {
    display: block !important;
    border-bottom: 2pt solid #000000;
    padding-bottom: 10pt;
    margin-bottom: 14pt;
  }

  .print-only-header h1 {
    font-size: 20pt;
    color: #000000;
    margin-bottom: 4pt;
  }

  .print-meta-grid {
    display: grid !important;
    grid-template-columns: repeat(4, 1fr) !important;
    gap: 10pt;
    margin-bottom: 16pt;
    border-bottom: 1pt solid #ccc;
    padding-bottom: 10pt;
  }

  .print-meta-item strong {
    display: block;
    font-size: 10pt;
    text-transform: uppercase;
    color: #444;
  }

  .print-meta-item span {
    font-size: 14pt;
    font-weight: bold;
  }

  .macro-card-item {
    background: transparent !important;
    border: 1pt solid #ccc !important;
    break-inside: avoid;
    page-break-inside: avoid;
    margin-bottom: 10pt;
  }

  .print-safety-checklist {
    display: block !important;
    margin-top: 20pt;
    padding: 12pt;
    border: 1pt solid #000;
    break-inside: avoid;
  }

  .print-safety-checklist h3 {
    font-size: 13pt;
    margin-bottom: 6pt;
  }

  .print-safety-checklist ul {
    margin-left: 20pt;
    font-size: 11pt;
  }
}

/* Hide print elements during standard screen display */
@media screen {
  .print-only-header,
  .print-safety-checklist {
    display: none;
  }
}