:root {
  /* Colors */
  --color-primary: #A81612;
  --color-primary-light: #c92a26;
  --color-primary-dark: #8a120f;
  --color-secondary: #5B7F2A;
  --color-secondary-light: #6e9934;
  --color-secondary-dark: #496621;
  --color-accent: #E2B13C;
  --color-accent-light: #f0c75e;
  --color-accent-dark: #c99a2e;
  --color-bg: #FFFFFF;
  --color-bg-alt: #F8F9FA;
  --color-bg-card: #FFFFFF;
  --color-surface: #FFFFFF;
  --color-text: #222222;
  --color-text-secondary: #555555;
  --color-text-muted: #888888;
  --color-border: #E5E7EB;
  --color-border-light: #F0F0F0;
  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-error: #EF4444;
  --color-info: #3B82F6;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.05);
  --shadow-card: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-card-hover: 0 8px 25px rgba(0,0,0,0.12);
  --shadow-nav: 0 2px 10px rgba(0,0,0,0.08);

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 3.75rem;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  /* Container */
  --container-max: 1280px;
  --container-narrow: 800px;
  --container-padding: 1.5rem;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
  --transition-spring: 400ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Z-index */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-nav: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-toast: 600;
}

[data-theme="dark"] {
  --color-bg: #111111;
  --color-bg-alt: #1A1A1A;
  --color-bg-card: #1E1E1E;
  --color-surface: #252525;
  --color-text: #F0F0F0;
  --color-text-secondary: #B0B0B0;
  --color-text-muted: #777777;
  --color-border: #333333;
  --color-border-light: #2A2A2A;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.4);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.5);
  --shadow-xl: 0 20px 25px rgba(0,0,0,0.6);
  --shadow-card: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-card-hover: 0 8px 25px rgba(0,0,0,0.5);
  --shadow-nav: 0 2px 10px rgba(0,0,0,0.5);
}

/* ==========================================================================
   1. CSS Reset / Normalize
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  font-family: var(--font-family);
  line-height: var(--line-height-normal);
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: inherit;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

main {
  display: block;
}

hr {
  box-sizing: content-box;
  height: 0;
  overflow: visible;
  border: 0;
  border-top: 1px solid var(--color-border);
  margin: var(--space-8) 0;
}

a {
  background-color: transparent;
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-dark);
}

abbr[title] {
  border-bottom: none;
  text-decoration: underline;
  text-decoration: underline dotted;
}

b, strong {
  font-weight: var(--font-weight-bold);
}

code, kbd, samp {
  font-family: monospace, monospace;
  font-size: 1em;
}

small {
  font-size: 80%;
}

sub, sup {
  font-size: 75%;
  line-height: 0;
  position: relative;
  vertical-align: baseline;
}

sub { bottom: -0.25em; }
sup { top: -0.5em; }

img {
  border-style: none;
  max-width: 100%;
  height: auto;
  display: block;
}

button, input, optgroup, select, textarea {
  font-family: inherit;
  font-size: 100%;
  line-height: 1.15;
  margin: 0;
}

button, input {
  overflow: visible;
}

button, select {
  text-transform: none;
}

button, [type="button"], [type="reset"], [type="submit"] {
  -webkit-appearance: button;
}

button::-moz-focus-inner,
[type="button"]::-moz-focus-inner,
[type="reset"]::-moz-focus-inner,
[type="submit"]::-moz-focus-inner {
  border-style: none;
  padding: 0;
}

button:-moz-focusring,
[type="button"]:-moz-focusring,
[type="reset"]:-moz-focusring,
[type="submit"]:-moz-focusring {
  outline: 1px dotted ButtonText;
}

fieldset {
  padding: 0.35em 0.75em 0.625em;
  margin: 0;
  border: 0;
}

legend {
  box-sizing: border-box;
  color: inherit;
  display: table;
  max-width: 100%;
  padding: 0;
  white-space: normal;
}

progress {
  vertical-align: baseline;
}

textarea {
  overflow: auto;
}

[type="checkbox"], [type="radio"] {
  box-sizing: border-box;
  padding: 0;
}

[type="number"]::-webkit-inner-spin-button,
[type="number"]::-webkit-outer-spin-button {
  height: auto;
}

[type="search"] {
  -webkit-appearance: textfield;
  outline-offset: -2px;
}

[type="search"]::-webkit-search-decoration {
  -webkit-appearance: none;
}

::-webkit-file-upload-button {
  -webkit-appearance: button;
  font: inherit;
}

details {
  display: block;
}

summary {
  display: list-item;
  cursor: pointer;
}

template {
  display: none;
}

[hidden] {
  display: none !important;
}

ul, ol {
  padding-left: var(--space-6);
  margin-top: 0;
  margin-bottom: var(--space-4);
}

li {
  margin-bottom: var(--space-2);
}

/* ==========================================================================
   2. Typography
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
  margin-top: 0;
  margin-bottom: var(--space-4);
  color: var(--color-text);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

@media (min-width: 768px) {
  h1 { font-size: var(--font-size-5xl); }
  h2 { font-size: var(--font-size-4xl); }
  h3 { font-size: var(--font-size-3xl); }
  h4 { font-size: var(--font-size-2xl); }
  h5 { font-size: var(--font-size-xl); }
}

p {
  margin-top: 0;
  margin-bottom: var(--space-4);
  color: var(--color-text-secondary);
}

strong {
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
}

em {
  font-style: italic;
}

blockquote {
  margin: var(--space-6) 0;
  padding: var(--space-4) var(--space-6);
  border-left: 4px solid var(--color-primary);
  background-color: var(--color-bg-alt);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--color-text-secondary);
  font-style: italic;
}

.text-gradient {
  background-image: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.section-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

/* ==========================================================================
   3. Layout
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.container-narrow {
  width: 100%;
  max-width: var(--container-narrow);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.section {
  padding-top: var(--space-12);
  padding-bottom: var(--space-12);
}

@media (min-width: 768px) {
  .section {
    padding-top: var(--space-20);
    padding-bottom: var(--space-20);
  }
}

.grid-2, .grid-3, .grid-4, .grid-6 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-6 { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
  .grid-6 { grid-template-columns: repeat(6, 1fr); }
}

/* ==========================================================================
   4. Navigation (.nav)
   ========================================================================== */
.nav {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background-color: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition-base);
}

[data-theme="dark"] .nav {
  background-color: rgba(17, 17, 17, 0.85);
}

.nav.scrolled {
  background-color: var(--color-bg);
  box-shadow: var(--shadow-nav);
  border-bottom: 1px solid var(--color-border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
}

@media (min-width: 768px) {
  .nav-inner {
    height: 5rem;
  }
}

.nav-brand {
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-xl);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.nav-brand:hover {
  color: var(--color-primary-dark);
}

.nav-menu {
  display: none;
}

@media (min-width: 1024px) {
  .nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-6);
  }
}

.nav-item {
  position: relative;
  list-style: none;
}

.nav-link {
  color: var(--color-text);
  font-weight: var(--font-weight-medium);
  padding: var(--space-2) 0;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-primary);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-link.active {
  color: var(--color-primary);
}

.nav-link.active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.nav-toggle {
  display: block;
  background: none;
  border: none;
  color: var(--color-text);
  font-size: var(--font-size-2xl);
  cursor: pointer;
  padding: var(--space-2);
}

@media (min-width: 1024px) {
  .nav-toggle {
    display: none;
  }
}

.nav-mobile {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: var(--color-bg);
  z-index: var(--z-modal);
  transform: translateX(100%);
  transition: transform var(--transition-base);
  padding: var(--space-20) var(--space-6) var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.nav-mobile.active {
  transform: translateX(0);
}

.mega-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background-color: var(--color-bg-card);
  box-shadow: var(--shadow-xl);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  width: max-content;
  max-width: 90vw;
  display: none;
  opacity: 0;
  pointer-events: none;
  transition: all var(--transition-fast);
  border: 1px solid var(--color-border);
  z-index: var(--z-dropdown);
}

.nav-item:hover .mega-menu {
  display: grid;
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-6);
}

/* ==========================================================================
   5. Hero Section (.hero)
   ========================================================================== */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: white;
  padding: var(--space-12) 0;
  overflow: hidden;
}

@media (min-width: 768px) {
  .hero {
    padding: var(--space-20) 0;
    min-height: 70vh;
    display: flex;
    align-items: center;
  }
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI0MCIgaGVpZ2h0PSI0MCI+CiAgPHBhdGggZD0iTTIwIDIwTDAgMEg0MEwyMCAyMHoiIGZpbGw9IiNmZmYiIGZpbGwtb3BhY2l0eT0iMC4wNSIvPgo8L3N2Zz4=');
  opacity: 0.3;
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-10);
}

@media (min-width: 1024px) {
  .hero .container {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.hero-content {
  flex: 1;
  max-width: 600px;
}

.hero-image {
  flex: 1;
  display: flex;
  justify-content: center;
}

.hero-image img {
  max-width: 100%;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
}

.hero-title {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--space-4);
  color: white;
  line-height: var(--line-height-tight);
}

@media (min-width: 768px) {
  .hero-title {
    font-size: var(--font-size-6xl);
  }
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-8);
  color: rgba(255, 255, 255, 0.9);
  line-height: var(--line-height-relaxed);
}

.hero-cta {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.hero-stats {
  margin-top: var(--space-12);
  display: flex;
  gap: var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding-top: var(--space-6);
}

.hero-stat-item {
  display: flex;
  flex-direction: column;
}

.hero-stat-number {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-accent);
}

.hero-stat-label {
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: rgba(255, 255, 255, 0.8);
}

/* ==========================================================================
   6. Cards (.card)
   ========================================================================== */
.card {
  background-color: var(--color-bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  height: 100%;
  position: relative;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}

.card-image {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.card:hover .card-image img {
  transform: scale(1.05);
}

.card-body {
  padding: var(--space-6);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card-title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-2);
}

.card-text {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
  flex: 1;
}

.card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

.card-badge {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  background-color: var(--color-bg-card);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  box-shadow: var(--shadow-sm);
  z-index: 1;
}

.card-footer {
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--color-border);
  background-color: var(--color-bg-alt);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-horizontal {
  flex-direction: row;
}

.card-horizontal .card-image {
  width: 40%;
  aspect-ratio: unset;
}

.card-horizontal .card-body {
  width: 60%;
}

@media (max-width: 767px) {
  .card-horizontal {
    flex-direction: column;
  }
  .card-horizontal .card-image,
  .card-horizontal .card-body {
    width: 100%;
  }
  .card-horizontal .card-image {
    aspect-ratio: 16 / 9;
  }
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-6);
}

/* ==========================================================================
   7. Buttons (.btn)
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-full);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-base);
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
  line-height: 1;
}

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

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

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

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: var(--color-secondary);
  color: white;
}

.btn-secondary:hover {
  background-color: var(--color-secondary-dark);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-accent {
  background-color: var(--color-accent);
  color: var(--color-text);
}

.btn-accent:hover {
  background-color: var(--color-accent-dark);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background-color: transparent;
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-outline:hover {
  background-color: var(--color-primary);
  color: white;
}

.btn-ghost {
  background-color: transparent;
  color: var(--color-text);
}

.btn-ghost:hover {
  background-color: var(--color-bg-alt);
  color: var(--color-primary);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: var(--font-size-sm);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: var(--font-size-lg);
}

.btn-icon {
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

/* ==========================================================================
   8. Calculator UI (.calculator)
   ========================================================================== */
.calculator-container {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

@media (min-width: 1024px) {
  .calculator-container {
    flex-direction: row;
    align-items: flex-start;
  }
}

.calc-steps {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.calc-step {
  background-color: var(--color-bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.calc-step-header {
  padding: var(--space-4) var(--space-6);
  background-color: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  cursor: pointer;
  user-select: none;
}

.calc-step-header h3 {
  margin: 0;
  font-size: var(--font-size-lg);
}

.calc-step-content {
  padding: var(--space-6);
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: var(--space-4);
}

@media (min-width: 768px) {
  .calc-step-content {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }
}

.calc-option {
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  background-color: var(--color-bg-card);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
}

.calc-option:hover:not(.disabled) {
  border-color: var(--color-primary-light);
  background-color: var(--color-bg-alt);
}

.calc-option.selected {
  border-color: var(--color-primary);
  background-color: rgba(168, 22, 18, 0.05);
  box-shadow: 0 0 0 1px var(--color-primary);
}

.calc-option.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  filter: grayscale(100%);
}

.calc-option img {
  width: 64px;
  height: 64px;
  object-fit: contain;
  margin-bottom: var(--space-2);
}

.calc-option-name {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  line-height: var(--line-height-tight);
}

.calc-option-cals {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.calc-summary {
  width: 100%;
  background-color: var(--color-bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  padding: var(--space-6);
}

@media (min-width: 1024px) {
  .calc-summary {
    width: 350px;
    position: sticky;
    top: 6rem;
  }
}

.calc-summary-title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-6);
  text-align: center;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--space-4);
}

.calc-total-calories {
  text-align: center;
  margin-bottom: var(--space-6);
}

.calc-total-calories .label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: block;
}

.calc-total-calories .value {
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  line-height: 1;
}

.calc-macro-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.calc-macro-item {
  background-color: var(--color-bg-alt);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  text-align: center;
}

.calc-macro-item .label {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  display: block;
  margin-bottom: var(--space-1);
}

.calc-macro-item .value {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
}

.calc-macro-bar {
  height: 4px;
  background-color: var(--color-border);
  border-radius: var(--radius-full);
  margin-top: var(--space-2);
  overflow: hidden;
}

.calc-macro-bar-fill {
  height: 100%;
  border-radius: var(--radius-full);
}

.calc-macro-bar-fill.protein { background-color: #3b82f6; }
.calc-macro-bar-fill.carbs { background-color: #f59e0b; }
.calc-macro-bar-fill.fat { background-color: #ef4444; }

.calc-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.calc-preset-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.calc-variance-slider {
  width: 100%;
  margin: var(--space-6) 0;
}

.calc-variance-slider input[type="range"] {
  width: 100%;
  accent-color: var(--color-primary);
}

.calc-variance-slider .labels {
  display: flex;
  justify-content: space-between;
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-2);
}

.nutrition-label {
  border: 2px solid black;
  padding: var(--space-2);
  background-color: white;
  color: black;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  max-width: 300px;
  margin: 0 auto;
}

[data-theme="dark"] .nutrition-label {
  background-color: white;
  color: black;
}

.nutrition-label header {
  border-bottom: 10px solid black;
  padding-bottom: var(--space-1);
  margin-bottom: var(--space-1);
}

.nutrition-label header h1 {
  font-size: 2rem;
  font-weight: 900;
  margin: 0;
  line-height: 1;
  color: black;
}

.nutrition-label .serving-size {
  font-size: 1.1rem;
  font-weight: bold;
}

.nutrition-label .calories-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  border-bottom: 5px solid black;
  padding: var(--space-1) 0;
}

.nutrition-label .calories-row .amount {
  font-size: 2.5rem;
  font-weight: 900;
  line-height: 1;
}

.nutrition-label .nutrient-row {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid black;
  padding: 0.2rem 0;
  font-size: 0.9rem;
}

.nutrition-label .nutrient-row.thick {
  border-bottom: 5px solid black;
}

.nutrition-label .indent {
  padding-left: 1rem;
}

/* ==========================================================================
   9. Nutrition Tables (.nutrition-table)
   ========================================================================== */
.nutrition-table-container {
  width: 100%;
  overflow-x: auto;
  margin-bottom: var(--space-8);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.nutrition-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  min-width: 800px;
}

.nutrition-table th,
.nutrition-table td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.nutrition-table-header {
  background-color: var(--color-bg-alt);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  white-space: nowrap;
}

.nutrition-table th {
  position: sticky;
  top: 0;
  background-color: var(--color-bg-alt);
  z-index: 10;
}

.nutrition-table-row:hover {
  background-color: rgba(0, 0, 0, 0.02);
}

[data-theme="dark"] .nutrition-table-row:hover {
  background-color: rgba(255, 255, 255, 0.05);
}

.nutrition-table-row:last-child td {
  border-bottom: none;
}

.nutrition-highlight {
  background-color: rgba(168, 22, 18, 0.05);
  font-weight: var(--font-weight-medium);
}

[data-theme="dark"] .nutrition-highlight {
  background-color: rgba(168, 22, 18, 0.15);
}

/* ==========================================================================
   10. FAQ Accordion (.faq)
   ========================================================================== */
.faq {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-bg-card);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-4) var(--space-6);
  background: none;
  border: none;
  text-align: left;
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.faq-question:hover {
  background-color: var(--color-bg-alt);
}

.faq-question::after {
  content: '▼';
  font-size: 0.8em;
  transition: transform var(--transition-base);
  color: var(--color-primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
  background-color: var(--color-bg-card);
}

.faq-answer-inner {
  padding: 0 var(--space-6) var(--space-4);
  color: var(--color-text-secondary);
}

.faq-item.active .faq-question::after {
  transform: rotate(180deg);
}

.faq-item.active .faq-answer {
  max-height: 1000px; /* Arbitrary large value for transition */
}

/* ==========================================================================
   11. Badges & Tags
   ========================================================================== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25em 0.75em;
  font-size: 0.75em;
  font-weight: var(--font-weight-bold);
  line-height: 1;
  text-align: center;
  white-space: nowrap;
  vertical-align: baseline;
  border-radius: var(--radius-full);
}

.badge-primary { background-color: var(--color-primary); color: white; }
.badge-secondary { background-color: var(--color-secondary); color: white; }
.badge-accent { background-color: var(--color-accent); color: var(--color-text); }
.badge-success { background-color: var(--color-success); color: white; }
.badge-warning { background-color: var(--color-warning); color: white; }
.badge-error { background-color: var(--color-error); color: white; }

.dietary-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  background-color: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
}

.allergen-badge {
  background-color: rgba(239, 68, 68, 0.1);
  color: var(--color-error);
  border-color: rgba(239, 68, 68, 0.2);
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-4);
  background-color: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tag:hover {
  background-color: var(--color-border-light);
}

.tag.active {
  background-color: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

/* ==========================================================================
   12. Breadcrumbs (.breadcrumb)
   ========================================================================== */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  padding: 0;
  margin: 0 0 var(--space-4) 0;
  list-style: none;
}

.breadcrumb-item {
  display: flex;
  align-items: center;
  font-size: var(--font-size-sm);
}

.breadcrumb-item + .breadcrumb-item::before {
  content: '›';
  display: inline-block;
  padding: 0 var(--space-2);
  color: var(--color-text-muted);
}

.breadcrumb-link {
  color: var(--color-text-secondary);
  text-decoration: none;
}

.breadcrumb-link:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

.breadcrumb-item.active {
  color: var(--color-text-muted);
}

/* ==========================================================================
   13. Footer (.footer)
   ========================================================================== */
.footer {
  background-color: #1a1a1a;
  color: white;
  padding-top: var(--space-16);
  padding-bottom: var(--space-8);
  margin-top: auto;
}

[data-theme="dark"] .footer {
  background-color: #0a0a0a;
  border-top: 1px solid var(--color-border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
  margin-bottom: var(--space-12);
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.footer-brand .nav-brand {
  color: white;
}

.footer-brand p {
  color: #a3a3a3;
  font-size: var(--font-size-sm);
  max-width: 300px;
}

.footer h4 {
  color: white;
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-4);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-links a {
  color: #a3a3a3;
  text-decoration: none;
  transition: color var(--transition-fast);
  font-size: var(--font-size-sm);
}

.footer-links a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid #333;
  padding-top: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  align-items: center;
  text-align: center;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer-bottom p {
  margin: 0;
  color: #a3a3a3;
  font-size: var(--font-size-sm);
}

.disclaimer-text {
  font-size: var(--font-size-xs);
  color: #737373;
  text-align: center;
  max-width: 800px;
  margin: var(--space-6) auto 0;
  line-height: var(--line-height-relaxed);
}

/* ==========================================================================
   14. Search Modal (.search-modal)
   ========================================================================== */
.search-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  z-index: var(--z-modal-backdrop);
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding-top: 10vh;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.search-modal.active {
  opacity: 1;
  visibility: visible;
}

.search-modal-content {
  width: 100%;
  max-width: 600px;
  background-color: var(--color-bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  padding: var(--space-6);
  transform: translateY(-20px);
  transition: transform var(--transition-base);
}

.search-modal.active .search-modal-content {
  transform: translateY(0);
}

.search-input-wrapper {
  position: relative;
  margin-bottom: var(--space-4);
}

.search-input {
  width: 100%;
  padding: var(--space-4) var(--space-4) var(--space-4) var(--space-10);
  font-size: var(--font-size-lg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-bg);
  color: var(--color-text);
  transition: border-color var(--transition-fast);
}

.search-input:focus {
  outline: none;
  border-color: var(--color-primary);
}

.search-icon {
  position: absolute;
  left: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
}

.search-close {
  position: absolute;
  right: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  font-size: var(--font-size-xl);
  color: var(--color-text-muted);
  cursor: pointer;
}

.search-results {
  max-height: 300px;
  overflow-y: auto;
  margin: 0;
  padding: 0;
  list-style: none;
}

.search-result-item {
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-border);
}

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

.search-result-item a {
  display: block;
  color: var(--color-text);
  text-decoration: none;
}

.search-result-item a:hover {
  color: var(--color-primary);
}

/* ==========================================================================
   15. Forms
   ========================================================================== */
.form-group {
  margin-bottom: var(--space-4);
}

.form-label {
  display: block;
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--space-2);
  color: var(--color-text);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-bg);
  background-clip: padding-box;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--color-primary);
  outline: 0;
  box-shadow: 0 0 0 3px rgba(168, 22, 18, 0.25);
}

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

.form-error {
  border-color: var(--color-error);
}

.form-error:focus {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.25);
}

.form-error-message {
  color: var(--color-error);
  font-size: var(--font-size-sm);
  margin-top: var(--space-1);
}

.form-help {
  display: block;
  margin-top: var(--space-1);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* ==========================================================================
   16. Article / Blog Layout (.article)
   ========================================================================== */
.article {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--space-8) 0;
}

.article-header {
  margin-bottom: var(--space-8);
  text-align: center;
}

.article-title {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--space-4);
}

.article-meta {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-4);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-6);
}

.article-author {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.article-author img {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
}

.article-author-info {
  text-align: left;
}

.article-author-name {
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  margin: 0;
}

.article-author-cred {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin: 0;
}

.article-reviewer {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background-color: var(--color-bg-alt);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.article-layout {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

@media (min-width: 1024px) {
  .article-layout {
    flex-direction: row;
    align-items: flex-start;
  }
}

.article-toc {
  background-color: var(--color-bg-alt);
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  position: sticky;
  top: 6rem;
}

@media (min-width: 1024px) {
  .article-toc {
    width: 250px;
    flex-shrink: 0;
  }
}

.article-toc h4 {
  margin-bottom: var(--space-4);
  font-size: var(--font-size-lg);
}

.article-toc ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.article-toc li {
  margin-bottom: var(--space-2);
}

.article-toc a {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  text-decoration: none;
}

.article-toc a:hover {
  color: var(--color-primary);
}

.article-content {
  flex: 1;
  font-size: 1.125rem;
  line-height: 1.8;
  color: var(--color-text);
}

.article-content h2 {
  font-size: var(--font-size-2xl);
  margin-top: var(--space-8);
  margin-bottom: var(--space-4);
}

.article-content h3 {
  font-size: var(--font-size-xl);
  margin-top: var(--space-6);
  margin-bottom: var(--space-3);
}

.article-content p {
  margin-bottom: var(--space-6);
}

.article-content ul, .article-content ol {
  margin-bottom: var(--space-6);
  padding-left: var(--space-6);
}

.article-content li {
  margin-bottom: var(--space-2);
}

.article-content img {
  border-radius: var(--radius-lg);
  margin: var(--space-8) 0;
  width: 100%;
}

.article-references {
  margin-top: var(--space-12);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
}

.article-references h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-4);
}

.article-references ol {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.article-related {
  margin-top: var(--space-16);
}

.article-related h3 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-6);
  text-align: center;
}

/* ==========================================================================
   17. Store Locator (.store-locator)
   ========================================================================== */
.store-locator {
  padding: var(--space-8) 0;
}

.store-search {
  max-width: 600px;
  margin: 0 auto var(--space-8);
  display: flex;
  gap: var(--space-2);
}

.store-search .form-input {
  flex: 1;
}

.store-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .store-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.store-card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

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

.store-card h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-2);
}

.store-card p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-1);
}

.store-map-placeholder {
  width: 100%;
  height: 200px;
  background-color: var(--color-bg-alt);
  border-radius: var(--radius-md);
  margin-top: var(--space-4);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

/* ==========================================================================
   18. Animations & Keyframes
   ========================================================================== */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { transform: translateY(30px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

@keyframes slideDown {
  from { transform: translateY(-20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

@keyframes scaleIn {
  from { transform: scale(0.9); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

@keyframes counterUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes shimmer {
  0% { background-position: -1000px 0; }
  100% { background-position: 1000px 0; }
}

.animate-fade-in { animation: fadeIn 0.5s ease-out forwards; }
.animate-slide-up { animation: slideUp 0.5s ease-out forwards; }
.animate-scale-in { animation: scaleIn 0.5s ease-out forwards; }

.skeleton {
  animation: shimmer 2s infinite linear;
  background: linear-gradient(to right, var(--color-bg-alt) 4%, var(--color-border) 25%, var(--color-bg-alt) 36%);
  background-size: 1000px 100%;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ==========================================================================
   19. Utility Classes
   ========================================================================== */
.text-center { text-align: center !important; }
.text-left { text-align: left !important; }
.text-right { text-align: right !important; }

.text-primary { color: var(--color-primary) !important; }
.text-secondary { color: var(--color-secondary) !important; }
.text-accent { color: var(--color-accent) !important; }
.text-muted { color: var(--color-text-muted) !important; }

.bg-primary { background-color: var(--color-primary) !important; color: white !important; }
.bg-secondary { background-color: var(--color-secondary) !important; color: white !important; }
.bg-accent { background-color: var(--color-accent) !important; color: var(--color-text) !important; }
.bg-alt { background-color: var(--color-bg-alt) !important; }

.mt-2 { margin-top: var(--space-2) !important; }
.mt-4 { margin-top: var(--space-4) !important; }
.mt-8 { margin-top: var(--space-8) !important; }
.mb-2 { margin-bottom: var(--space-2) !important; }
.mb-4 { margin-bottom: var(--space-4) !important; }
.mb-8 { margin-bottom: var(--space-8) !important; }

.pt-4 { padding-top: var(--space-4) !important; }
.pb-4 { padding-bottom: var(--space-4) !important; }
.py-4 { padding-top: var(--space-4) !important; padding-bottom: var(--space-4) !important; }
.py-8 { padding-top: var(--space-8) !important; padding-bottom: var(--space-8) !important; }
.px-4 { padding-left: var(--space-4) !important; padding-right: var(--space-4) !important; }

.flex { display: flex !important; }
.flex-center { display: flex !important; align-items: center !important; justify-content: center !important; }
.flex-between { display: flex !important; align-items: center !important; justify-content: space-between !important; }
.flex-wrap { flex-wrap: wrap !important; }

.gap-2 { gap: var(--space-2) !important; }
.gap-4 { gap: var(--space-4) !important; }
.gap-6 { gap: var(--space-6) !important; }
.gap-8 { gap: var(--space-8) !important; }

.rounded { border-radius: var(--radius-md) !important; }
.rounded-lg { border-radius: var(--radius-lg) !important; }
.rounded-full { border-radius: var(--radius-full) !important; }

.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.line-clamp-3 {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* ==========================================================================
   20. Responsive Breakpoints
   ========================================================================== */
/* Covered throughout the file using mobile-first approach.
   Summary of breakpoints used:
   - Default: < 480px (mobile)
   - 480px: Small tablets
   - 768px: Tablets
   - 1024px: Desktop
   - 1280px: Large desktop
*/

/* ==========================================================================
   21. Print Styles
   ========================================================================== */
@media print {
  .nav, .hero, .footer, .btn, .calc-preset-grid, .calc-variance-slider,
  .store-locator, .article-related, .search-modal {
    display: none !important;
  }

  body {
    background-color: white;
    color: black;
  }

  .container {
    max-width: 100%;
    padding: 0;
  }

  .calc-summary {
    box-shadow: none;
    border: none;
    position: static;
    width: 100%;
  }

  .nutrition-label {
    page-break-inside: avoid;
    border: 2px solid black !important;
  }

  .calc-option.selected {
    border: 1px solid black !important;
    background-color: #f0f0f0 !important;
  }

  * {
    -webkit-print-color-adjust: exact !important;
    color-adjust: exact !important;
  }
}

/* ==========================================================================
   22. Focus & Accessibility
   ========================================================================== */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: white;
  padding: 8px;
  z-index: 9999;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 0;
}

button, a, input, select, textarea, .calc-option, .faq-question {
  min-height: 44px; /* Minimum touch target size */
  min-width: 44px;
}


/* ==========================================================================
   Dark Mode Overrides - Calculator Legibility & Contrast
   ========================================================================== */
[data-theme="dark"] .calc-step {
  background-color: #1e1e1e !important;
  border-color: #333333 !important;
}

[data-theme="dark"] .calc-step-header {
  background-color: #252525 !important;
  border-bottom-color: #333333 !important;
  color: #ffffff !important;
}

[data-theme="dark"] .calc-step-header:hover {
  background-color: #2d2d2d !important;
}

[data-theme="dark"] .calc-step-number {
  background-color: var(--color-primary) !important;
  color: #ffffff !important;
}

[data-theme="dark"] .calc-step-title {
  color: #ffffff !important;
}

[data-theme="dark"] .calc-step-selection {
  color: var(--color-accent) !important;
}

[data-theme="dark"] .calc-option {
  background-color: #242424 !important;
  border-color: #383838 !important;
  color: #f0f0f0 !important;
}

[data-theme="dark"] .calc-option:hover:not(.disabled) {
  background-color: #2e2e2e !important;
  border-color: var(--color-primary-light) !important;
}

[data-theme="dark"] .calc-option.selected {
  background-color: #3d1414 !important;
  border-color: var(--color-primary-light) !important;
  box-shadow: 0 0 0 2px var(--color-primary) !important;
  color: #ffffff !important;
}

[data-theme="dark"] .calc-option-name {
  color: #ffffff !important;
}

[data-theme="dark"] .calc-option-cal {
  color: #bbbbbb !important;
}

[data-theme="dark"] .calc-option-check {
  color: var(--color-accent) !important;
}

[data-theme="dark"] .calc-summary {
  background-color: #1e1e1e !important;
  border-color: #333333 !important;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.7) !important;
}

[data-theme="dark"] .calc-summary-title {
  color: #ffffff !important;
  border-bottom-color: #333333 !important;
}

[data-theme="dark"] .calc-macro-item {
  background-color: #262626 !important;
  border: 1px solid #383838 !important;
}

[data-theme="dark"] .calc-macro-item .label {
  color: #aaaaaa !important;
}

[data-theme="dark"] .calc-macro-item .value {
  color: #ffffff !important;
}

[data-theme="dark"] .calc-macro-bar {
  background-color: #383838 !important;
}

[data-theme="dark"] .calc-total-calories .label {
  color: #bbbbbb !important;
}

[data-theme="dark"] .calc-total-calories .value {
  color: #ff5252 !important;
}

[data-theme="dark"] .calc-double-toggle,
[data-theme="dark"] .calc-preset-card {
  background-color: #242424 !important;
  border-color: #383838 !important;
  color: #ffffff !important;
}

[data-theme="dark"] .calc-double-toggle:hover,
[data-theme="dark"] .calc-preset-card:hover {
  background-color: #2e2e2e !important;
  border-color: var(--color-primary-light) !important;
}

[data-theme="dark"] .calc-price-estimate {
  background-color: #262626 !important;
  color: #ffffff !important;
  border-color: #383838 !important;
}