/* ============================================================
   IronStreak — Global Stylesheet
   "Dark Luxury Fitness meets Gaming UI"
   ============================================================ */

/* ----------------------------------------
   1. @font-face Declarations
   Self-hosted for performance and privacy.
   Nunito (variable font): weights 400–900
   Plus Jakarta Sans (variable font): weights 700–800
   ---------------------------------------- */

@font-face {
  font-family: 'Nunito';
  font-style: normal;
  font-weight: 400 900;
  font-display: swap;
  src: url('../fonts/nunito-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: 'Nunito';
  font-style: normal;
  font-weight: 400 900;
  font-display: swap;
  src: url('../fonts/nunito-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

@font-face {
  font-family: 'Plus Jakarta Sans';
  font-style: normal;
  font-weight: 700 800;
  font-display: swap;
  src: url('../fonts/plus-jakarta-sans-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: 'Plus Jakarta Sans';
  font-style: normal;
  font-weight: 700 800;
  font-display: swap;
  src: url('../fonts/plus-jakarta-sans-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* ----------------------------------------
   2. CSS Custom Properties
   ---------------------------------------- */

:root {
  /* Brand */
  --flame: #FF6D00;
  --flame-light: #FF9100;
  --flame-gold: #FFB74D;
  --gradient-cta: linear-gradient(135deg, #FF6D00, #FF9100, #FFB74D);

  /* Backgrounds */
  --bg-app: #0E0E0E;
  --bg-surface: #1A1A1A;
  --bg-elevated: #1E1E1E;
  --bg-warm: linear-gradient(135deg, #1E0E00, #0E0E0E);

  /* Text */
  --text-primary: #FFFFFF;
  --text-secondary: rgba(255, 255, 255, 0.6);
  --text-tertiary: rgba(255, 255, 255, 0.4);

  /* Glass */
  --glass-bg: linear-gradient(135deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
  --glass-border: rgba(255, 255, 255, 0.05);
  --glass-inner: rgba(255, 255, 255, 0.04);

  /* Semantic */
  --success: #66BB6A;
  --info: #4FC3F7;
  --danger: #EF5350;

  /* Muscle Groups */
  --chest: #FF6D00;
  --back: #4FC3F7;
  --shoulders: #FFB74D;
  --legs: #66BB6A;
  --arms: #CE93D8;
  --core: #EF5350;

  /* Trophy Tiers */
  --bronze: #CD7F32;
  --silver: #C0C0C0;
  --gold: #FFD700;
  --platinum: #E5E4E2;

  /* Shadows */
  --glow-cta: 0 0 24px rgba(255, 109, 0, 0.3), 0 0 48px rgba(255, 109, 0, 0.1);
  --glow-hero: radial-gradient(circle, rgba(255, 109, 0, 0.2) 0%, transparent 70%);

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 12px;
  --space-lg: 16px;
  --space-xl: 20px;
  --space-xxl: 24px;
  --space-3xl: 32px;
  --space-4xl: 48px;
  --space-5xl: 64px;

  /* Radii */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 14px;
  --radius-xl: 16px;
  --radius-phone: 20px;

  /* Font stacks */
  --font-display: 'Plus Jakarta Sans', 'Nunito', system-ui, sans-serif;
  --font-body: 'Nunito', system-ui, sans-serif;
}

/* ----------------------------------------
   3. CSS Reset
   ---------------------------------------- */

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

html {
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

ul, ol {
  list-style: none;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
}

a {
  color: inherit;
  text-decoration: none;
}

img, picture, video, svg {
  display: block;
  max-width: 100%;
}

input, textarea, select {
  font: inherit;
}

/* ----------------------------------------
   4. Base Styles
   ---------------------------------------- */

body {
  background-color: var(--bg-app);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a:not(.btn-primary):not(.nav-link):not(.footer-link) {
  color: var(--flame);
  transition: color 0.2s ease;
}

a:not(.btn-primary):not(.nav-link):not(.footer-link):hover {
  color: var(--flame-light);
}

img {
  height: auto;
}

::selection {
  background: rgba(255, 109, 0, 0.3);
  color: var(--text-primary);
}

/* ----------------------------------------
   5. Typography Classes
   ---------------------------------------- */

.hero-mega {
  font: 900 clamp(36px, 8vw, 72px)/1.05 var(--font-display);
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.hero-headline {
  font: 800 clamp(28px, 6vw, 48px)/1.15 var(--font-display);
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.section-title {
  font: 800 clamp(22px, 4vw, 28px)/1.3 var(--font-display);
  color: var(--text-primary);
}

.card-title {
  font: 700 20px/1.4 var(--font-body);
  color: var(--text-primary);
}

.body-text {
  font: 400 17px/1.7 var(--font-body);
  color: var(--text-secondary);
}

.body-semibold {
  font: 600 17px/1.7 var(--font-body);
}

.secondary {
  font: 400 16px/1.7 var(--font-body);
  color: var(--text-secondary);
}

.caption {
  font: 400 12px/1.5 var(--font-body);
  color: var(--text-tertiary);
}

.stat-value {
  font: 800 28px/1.2 var(--font-display);
  color: var(--flame);
}

.stat-label {
  font: 600 11px/1 var(--font-body);
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.kicker {
  font: 700 12px/1 var(--font-body);
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--flame);
}

/* Gradient text utility */
.gradient-text {
  background: var(--gradient-cta);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ----------------------------------------
   6. Component Classes
   ---------------------------------------- */

/* Glass Card */
.glass-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: inset 0 1px 0 var(--glass-inner);
  padding: var(--space-xxl);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* Gradient Button (Primary CTA) */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  background: var(--gradient-cta);
  border: none;
  border-radius: var(--radius-xl);
  color: var(--text-primary);
  font: 600 17px/1 var(--font-body);
  padding: 14px 32px;
  box-shadow: var(--glow-cta);
  cursor: pointer;
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.2s ease;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary:hover {
  transform: scale(1.02);
  box-shadow: 0 0 32px rgba(255, 109, 0, 0.4), 0 0 64px rgba(255, 109, 0, 0.15);
}

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

/* Secondary / Ghost Button */
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-xl);
  color: var(--text-primary);
  font: 600 17px/1 var(--font-body);
  padding: 14px 32px;
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
  text-decoration: none;
  white-space: nowrap;
}

.btn-secondary:hover {
  border-color: var(--flame);
  background: rgba(255, 109, 0, 0.05);
}

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

/* Feature Tag */
.feature-tag {
  display: inline-block;
  background: rgba(255, 109, 0, 0.1);
  color: var(--flame);
  font: 600 13px/1 var(--font-body);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
}

/* Trophy tier tag variants */
.feature-tag--bronze { background: rgba(205, 127, 50, 0.15); color: var(--bronze); }
.feature-tag--silver { background: rgba(192, 192, 192, 0.15); color: var(--silver); }
.feature-tag--gold { background: rgba(255, 215, 0, 0.15); color: var(--gold); }
.feature-tag--platinum { background: rgba(229, 228, 226, 0.15); color: var(--platinum); }

/* Phone Mockup */
.phone-mockup {
  border-radius: var(--radius-phone);
  border: 1px solid rgba(255, 255, 255, 0.1);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.phone-mockup img {
  width: 100%;
  height: auto;
  display: block;
}

/* ----------------------------------------
   7. Layout Utilities
   ---------------------------------------- */

.container {
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-xl);
  padding-right: var(--space-xl);
}

.container--narrow {
  max-width: 720px;
}

.section {
  padding-top: var(--space-5xl);
  padding-bottom: var(--space-5xl);
}

.section--warm {
  background: var(--bg-warm);
}

.split {
  display: flex;
  align-items: center;
  gap: var(--space-5xl);
}

.split > * {
  flex: 1;
  min-width: 0;
}

.split--reverse {
  flex-direction: row-reverse;
}

.text-center {
  text-align: center;
}

/* ----------------------------------------
   8. Animation Classes
   ---------------------------------------- */

/* Scroll Reveal — elements start visible, JS adds .reveal class */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
  }

  .reveal.visible {
    opacity: 1;
    transform: translateY(0);
  }

  /* Stagger children */
  .reveal-stagger > .reveal:nth-child(1) { transition-delay: 0s; }
  .reveal-stagger > .reveal:nth-child(2) { transition-delay: 0.1s; }
  .reveal-stagger > .reveal:nth-child(3) { transition-delay: 0.2s; }
  .reveal-stagger > .reveal:nth-child(4) { transition-delay: 0.3s; }
  .reveal-stagger > .reveal:nth-child(5) { transition-delay: 0.4s; }
  .reveal-stagger > .reveal:nth-child(6) { transition-delay: 0.5s; }
}

/* CTA Glow Pulse */
@keyframes glow-pulse {
  0%, 100% { box-shadow: 0 0 24px rgba(255, 109, 0, 0.3); }
  50% { box-shadow: 0 0 36px rgba(255, 109, 0, 0.5); }
}

.glow-pulse {
  animation: glow-pulse 3s ease-in-out infinite;
}

/* Float animation for phone mockups */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

@media (prefers-reduced-motion: no-preference) {
  .float {
    animation: float 5s ease-in-out infinite;
  }

  .float--delayed {
    animation: float 5s ease-in-out 1.5s infinite;
  }
}

/* Subtle grain texture overlay */
@keyframes grain {
  0%, 100% { transform: translate(0, 0); }
  10% { transform: translate(-2%, -2%); }
  30% { transform: translate(1%, -1%); }
  50% { transform: translate(-1%, 2%); }
  70% { transform: translate(2%, 1%); }
  90% { transform: translate(-2%, 1%); }
}

/* ----------------------------------------
   9. Accessibility
   ---------------------------------------- */

/* Skip to content link */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-lg);
  background: var(--flame);
  color: var(--text-primary);
  font: 600 14px/1 var(--font-body);
  padding: var(--space-md) var(--space-lg);
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  z-index: 10000;
  transition: top 0.2s ease;
  text-decoration: none;
}

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

/* Focus indicators */
:focus-visible {
  outline: 2px solid var(--flame);
  outline-offset: 2px;
}

/* Remove outline for mouse users */
:focus:not(:focus-visible) {
  outline: none;
}

/* Reduced motion: disable all animations and transitions */
@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;
  }

  .reveal {
    opacity: 1 !important;
    transform: none !important;
  }
}

/* Screen reader only utility */
.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;
}

/* ----------------------------------------
   10. Navigation Styles
   ---------------------------------------- */

.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(14, 14, 14, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  transition: background 0.3s ease;
}

.site-nav--scrolled {
  background: rgba(14, 14, 14, 0.95);
}

.site-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-md) var(--space-xl);
  height: 64px;
}

.site-nav__brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  color: var(--text-primary);
  font: 700 20px/1 var(--font-display);
}

.site-nav__brand img {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
}

.site-nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-3xl);
}

.nav-link {
  color: var(--text-secondary);
  font: 600 15px/1 var(--font-body);
  text-decoration: none;
  transition: color 0.2s ease;
  position: relative;
}

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

.nav-link--active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--flame);
  border-radius: 1px;
}

.site-nav__cta {
  padding: 10px 24px;
  font-size: 15px;
}

/* Hamburger button — mobile */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 28px;
  height: 28px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1002;
}

.nav-hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-hamburger[aria-expanded="true"] span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

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

.nav-hamburger[aria-expanded="true"] span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile slide-in drawer */
.nav-drawer {
  display: none;
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(300px, 80vw);
  background: var(--bg-surface);
  border-left: 1px solid rgba(255, 255, 255, 0.05);
  padding: 80px var(--space-xxl) var(--space-xxl);
  flex-direction: column;
  gap: var(--space-lg);
  z-index: 1001;
  transform: translateX(100%);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-drawer.open {
  transform: translateX(0);
}

.nav-drawer .nav-link {
  font-size: 18px;
  padding: var(--space-md) 0;
  display: block;
}

.nav-drawer .btn-primary {
  margin-top: var(--space-lg);
  text-align: center;
}

/* Drawer overlay */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 1000;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.nav-overlay.visible {
  opacity: 1;
}

/* Nav spacer — pushes content below fixed nav */
.nav-spacer {
  height: 64px;
}

/* ----------------------------------------
   11. FAQ Accordion
   ---------------------------------------- */

.faq-list {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

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

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg) var(--space-xxl);
  cursor: pointer;
  font: 600 17px/1.4 var(--font-body);
  color: var(--text-primary);
  list-style: none;
  transition: color 0.2s ease;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: '+';
  font-size: 24px;
  font-weight: 300;
  color: var(--text-tertiary);
  transition: transform 0.3s ease, color 0.3s ease;
  flex-shrink: 0;
  margin-left: var(--space-lg);
}

.faq-item[open] summary::after {
  content: '-';
  color: var(--flame);
}

.faq-item summary:hover {
  color: var(--flame);
}

.faq-item__answer {
  padding: 0 var(--space-xxl) var(--space-lg);
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Smooth expand via grid trick */
.faq-item__content {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.3s ease;
}

.faq-item[open] .faq-item__content {
  grid-template-rows: 1fr;
}

.faq-item__content > div {
  overflow: hidden;
}

/* ----------------------------------------
   12. Comparison Table
   ---------------------------------------- */

.comparison-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.comparison-table th,
.comparison-table td {
  padding: var(--space-md) var(--space-lg);
  text-align: left;
  border-bottom: 1px solid var(--glass-border);
}

.comparison-table th {
  background: var(--bg-elevated);
  font: 600 14px/1.4 var(--font-body);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.comparison-table td {
  font: 400 15px/1.5 var(--font-body);
  color: var(--text-primary);
}

.comparison-table tr:last-child td {
  border-bottom: none;
}

.comparison-table tbody tr {
  transition: background 0.2s ease;
}

.comparison-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

/* Check / Cross indicators */
.check-yes,
.check-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  font-size: 12px;
  font-weight: 700;
}

.check-yes {
  background: rgba(102, 187, 106, 0.15);
  color: var(--success);
}

.check-yes::before {
  content: '';
  width: 10px;
  height: 6px;
  border-left: 2px solid var(--success);
  border-bottom: 2px solid var(--success);
  transform: rotate(-45deg);
  margin-top: -2px;
}

.check-no {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-tertiary);
}

.check-no::before {
  content: '';
  width: 10px;
  height: 10px;
  position: relative;
  background:
    linear-gradient(45deg, transparent 43%, var(--text-tertiary) 43%, var(--text-tertiary) 57%, transparent 57%),
    linear-gradient(-45deg, transparent 43%, var(--text-tertiary) 43%, var(--text-tertiary) 57%, transparent 57%);
}

/* ----------------------------------------
   13. Footer Styles
   ---------------------------------------- */

.site-footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--glass-border);
  padding-top: var(--space-5xl);
  padding-bottom: var(--space-3xl);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-4xl);
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.site-footer__brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.site-footer__brand-name {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font: 700 20px/1 var(--font-display);
  color: var(--text-primary);
}

.site-footer__brand-name img {
  width: 28px;
  height: 28px;
  border-radius: 6px;
}

.site-footer__tagline {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.6;
  max-width: 280px;
}

.site-footer__app-store {
  margin-top: var(--space-md);
}

.site-footer__app-store img {
  height: 40px;
  width: auto;
}

.site-footer__column h4 {
  font: 600 13px/1 var(--font-body);
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: var(--space-lg);
}

.site-footer__column ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.footer-link {
  color: var(--text-secondary);
  font-size: 15px;
  text-decoration: none;
  transition: color 0.2s ease;
}

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

.site-footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: var(--space-4xl) auto 0;
  padding: var(--space-lg) var(--space-xl) 0;
  border-top: 1px solid var(--glass-border);
  color: var(--text-tertiary);
  font-size: 14px;
}

.site-footer__bottom a {
  color: var(--text-tertiary);
  transition: color 0.2s ease;
}

.site-footer__bottom a:hover {
  color: var(--text-secondary);
}

/* ----------------------------------------
   14. Blog Styles
   ---------------------------------------- */

/* Blog listing cards */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-3xl);
}

.blog-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xxl);
  transition: border-color 0.2s ease, transform 0.2s ease;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.blog-card:hover {
  border-color: rgba(255, 109, 0, 0.2);
  transform: translateY(-2px);
}

.blog-card__category {
  display: inline-block;
  font: 600 11px/1 var(--font-body);
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--flame);
}

.blog-card__title {
  font: 700 20px/1.3 var(--font-body);
  color: var(--text-primary);
}

.blog-card__excerpt {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-card__meta {
  display: flex;
  gap: var(--space-lg);
  color: var(--text-tertiary);
  font-size: 13px;
  margin-top: auto;
  padding-top: var(--space-md);
}

/* Blog post body */
.post-body {
  max-width: 720px;
  margin: 0 auto;
}

.post-body h1 {
  font: 800 clamp(28px, 5vw, 40px)/1.2 var(--font-display);
  margin-bottom: var(--space-lg);
}

.post-body h2 {
  font: 700 clamp(20px, 3vw, 26px)/1.3 var(--font-display);
  margin-top: var(--space-4xl);
  margin-bottom: var(--space-lg);
  color: var(--text-primary);
}

.post-body h3 {
  font: 700 20px/1.4 var(--font-body);
  margin-top: var(--space-3xl);
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

.post-body p {
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
  line-height: 1.8;
}

.post-body ul,
.post-body ol {
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
  padding-left: var(--space-xxl);
}

.post-body li {
  list-style: disc;
  margin-bottom: var(--space-sm);
  line-height: 1.7;
}

.post-body ol li {
  list-style: decimal;
}

.post-body strong {
  color: var(--text-primary);
  font-weight: 700;
}

.post-body a {
  color: var(--flame);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.post-body a:hover {
  color: var(--flame-light);
}

.post-body blockquote {
  border-left: 3px solid var(--flame);
  padding-left: var(--space-xl);
  margin: var(--space-xxl) 0;
  color: var(--text-secondary);
  font-style: italic;
}

.post-body code {
  background: var(--bg-elevated);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 15px;
}

.post-body pre {
  background: var(--bg-elevated);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: var(--space-lg);
  overflow-x: auto;
  margin-bottom: var(--space-lg);
}

.post-body pre code {
  background: none;
  padding: 0;
}

.post-body img {
  border-radius: var(--radius-md);
  margin: var(--space-xxl) 0;
}

/* Blog post header */
.post-header {
  max-width: 720px;
  margin: 0 auto var(--space-4xl);
}

.post-header__meta {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  color: var(--text-tertiary);
  font-size: 14px;
  margin-top: var(--space-lg);
}

/* Table of contents */
.post-toc {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: var(--space-xxl);
  margin-bottom: var(--space-4xl);
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.post-toc h2 {
  font: 600 14px/1 var(--font-body);
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: var(--space-lg);
}

.post-toc ol {
  counter-reset: toc;
  padding: 0;
}

.post-toc li {
  counter-increment: toc;
  list-style: none;
  margin-bottom: var(--space-sm);
}

.post-toc li::before {
  content: counter(toc) ". ";
  color: var(--flame);
  font-weight: 600;
}

.post-toc a {
  color: var(--text-secondary);
  font-size: 15px;
  text-decoration: none;
  transition: color 0.2s ease;
}

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

/* Mid-article CTA banner */
.post-cta {
  background: var(--glass-bg);
  border: 1px solid rgba(255, 109, 0, 0.15);
  border-radius: var(--radius-lg);
  padding: var(--space-3xl);
  margin: var(--space-4xl) 0;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
}

.post-cta__title {
  font: 700 20px/1.3 var(--font-body);
  color: var(--text-primary);
}

.post-cta__text {
  color: var(--text-secondary);
  font-size: 15px;
}

/* Related posts */
.related-posts {
  margin-top: var(--space-5xl);
  padding-top: var(--space-4xl);
  border-top: 1px solid var(--glass-border);
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.related-posts__title {
  font: 700 20px/1.3 var(--font-body);
  margin-bottom: var(--space-xxl);
}

.related-posts__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-lg);
}

/* ----------------------------------------
   15. Hero Section Utilities
   ---------------------------------------- */

.hero {
  position: relative;
  overflow: hidden;
  padding-top: var(--space-5xl);
  padding-bottom: var(--space-5xl);
}

.hero--warm {
  background: var(--bg-warm);
}

.hero__glow {
  position: absolute;
  width: 600px;
  height: 600px;
  background: var(--glow-hero);
  pointer-events: none;
  z-index: 0;
}

.hero__content {
  position: relative;
  z-index: 1;
}

/* Trust bar */
.trust-bar {
  display: flex;
  justify-content: center;
  gap: var(--space-5xl);
  padding: var(--space-3xl) 0;
  border-top: 1px solid var(--glass-border);
  border-bottom: 1px solid var(--glass-border);
}

.trust-bar__item {
  text-align: center;
}

.trust-bar__number {
  font: 800 clamp(28px, 5vw, 40px)/1 var(--font-display);
  color: var(--flame);
}

.trust-bar__label {
  font: 600 11px/1 var(--font-body);
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-top: var(--space-sm);
}

/* How It Works steps */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3xl);
}

.step-card {
  text-align: center;
  padding: var(--space-3xl) var(--space-xxl);
}

.step-card__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-cta);
  font: 800 20px/1 var(--font-display);
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
}

.step-card__title {
  font: 700 20px/1.3 var(--font-body);
  margin-bottom: var(--space-md);
}

.step-card__text {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.7;
}

/* Feature section tag row */
.feature-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

/* ----------------------------------------
   16. Pricing Page Utilities
   ---------------------------------------- */

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3xl);
  max-width: 800px;
  margin: 0 auto;
}

.pricing-card {
  padding: var(--space-3xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.pricing-card--pro {
  border-color: rgba(255, 109, 0, 0.3);
  position: relative;
}

.pricing-card--pro::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--radius-lg);
  padding: 1px;
  background: var(--gradient-cta);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
  -webkit-mask-composite: xor;
  pointer-events: none;
}

.pricing-card__price {
  font: 800 36px/1 var(--font-display);
  color: var(--text-primary);
}

.pricing-card__price span {
  font-size: 16px;
  font-weight: 400;
  color: var(--text-secondary);
}

.pricing-card__features {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin: var(--space-lg) 0;
  flex-grow: 1;
}

.pricing-card__feature {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  font-size: 15px;
  color: var(--text-secondary);
}

.pricing-card__feature::before {
  content: '';
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  border-radius: 50%;
  background: rgba(102, 187, 106, 0.15);
  position: relative;
}

/* ----------------------------------------
   17. Exercise Page Utilities
   ---------------------------------------- */

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
  padding: var(--space-lg) 0;
}

.filter-chip {
  background: var(--bg-elevated);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 100px;
  padding: var(--space-sm) var(--space-lg);
  font: 600 14px/1 var(--font-body);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
}

.filter-chip:hover {
  border-color: rgba(255, 255, 255, 0.15);
  color: var(--text-primary);
}

.filter-chip[aria-selected="true"],
.filter-chip.active {
  background: rgba(255, 109, 0, 0.1);
  border-color: rgba(255, 109, 0, 0.3);
  color: var(--flame);
}

.exercise-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.exercise-card {
  padding: var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  cursor: pointer;
  transition: border-color 0.2s ease;
}

.exercise-card:hover {
  border-color: rgba(255, 255, 255, 0.1);
}

.exercise-card__icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.exercise-card__name {
  font: 600 15px/1.3 var(--font-body);
  color: var(--text-primary);
}

.exercise-card__type {
  font-size: 13px;
  color: var(--text-tertiary);
}

/* ----------------------------------------
   18. Responsive Breakpoints
   ---------------------------------------- */

/* Small tablets (640px) */
@media (max-width: 639px) {
  .split {
    flex-direction: column;
    gap: var(--space-3xl);
  }

  .split--reverse {
    flex-direction: column;
  }

  .trust-bar {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xxl);
  }

  .steps-grid {
    grid-template-columns: 1fr;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .site-footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-3xl);
  }

  .site-footer__bottom {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }

  .site-nav__links {
    display: none;
  }

  .site-nav__cta.desktop-only {
    display: none;
  }

  .nav-hamburger {
    display: flex;
  }

  .nav-drawer {
    display: flex;
  }

  .section {
    padding-top: var(--space-4xl);
    padding-bottom: var(--space-4xl);
  }

  .blog-grid {
    grid-template-columns: 1fr;
  }
}

/* Tablets (640px–767px) */
@media (min-width: 640px) and (max-width: 767px) {
  .site-nav__links {
    display: none;
  }

  .site-nav__cta.desktop-only {
    display: none;
  }

  .nav-hamburger {
    display: flex;
  }

  .nav-drawer {
    display: flex;
  }
}

/* Small laptops (768px+) */
@media (min-width: 768px) {
  .split {
    gap: var(--space-4xl);
  }
}

/* Desktops (1024px+) */
@media (min-width: 1024px) {
  .hero {
    padding-top: 80px;
    padding-bottom: 80px;
  }

  .section {
    padding-top: 80px;
    padding-bottom: 80px;
  }

  .split {
    gap: var(--space-5xl);
  }
}

/* Large screens (1280px+) */
@media (min-width: 1280px) {
  .container {
    padding-left: var(--space-3xl);
    padding-right: var(--space-3xl);
  }

  .hero {
    padding-top: 100px;
    padding-bottom: 100px;
  }
}

/* ----------------------------------------
   19. Utility Classes
   ---------------------------------------- */

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-xs { gap: var(--space-xs); }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }
.gap-xxl { gap: var(--space-xxl); }
.gap-3xl { gap: var(--space-3xl); }

.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mt-xxl { margin-top: var(--space-xxl); }
.mt-3xl { margin-top: var(--space-3xl); }
.mt-4xl { margin-top: var(--space-4xl); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mb-xxl { margin-bottom: var(--space-xxl); }
.mb-3xl { margin-bottom: var(--space-3xl); }

.w-full { width: 100%; }
.mx-auto { margin-left: auto; margin-right: auto; }