/* ============================================
   Dagg Landing Page — Design Tokens & Styles
   Derived from Brand Guidelines v2.0
   ============================================ */

/* === Design Tokens === */
:root {
  /* Dark palette */
  --color-night: #1A1A2E;
  --color-predawn: #2C2C3A;
  --color-text-on-dark: #FFFFFF;
  --color-text-muted-dark: #C8C2B4;

  /* Light palette */
  --color-fog: #F5F2EC;
  --color-text-primary: #1A1A1A;
  --color-text-secondary: #8B8680;
  --color-border: #C8C2B4;

  /* Accent — used with extreme restraint */
  --color-forest: #4A7C59;
  --color-dew: #A8C5B8;
  --color-dawn: #D4A574;
  --color-signal: #E07A2F;

  /* Typography */
  --font-marketing: 'Inter', 'Source Sans 3', sans-serif;
  --font-product: 'Space Mono', monospace;

  --font-weight-light: 400;
  --font-weight-regular: 400;
  --font-weight-medium: 400;
  --font-weight-semibold: 700;

  /* Type scale */
  --text-hero: clamp(3rem, 6vw, 5.5rem);
  --text-section: clamp(2rem, 3.5vw, 3rem);
  --text-subsection: clamp(1.25rem, 2vw, 1.75rem);
  --text-body: 1.125rem;
  --text-body-small: 0.9375rem;
  --text-label: 0.8125rem;
  --text-stat: clamp(2.5rem, 4vw, 4rem);

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 3rem;
  --space-xl: 6rem;
  --space-2xl: 10rem;
  --space-3xl: 14rem;

  /* Borders */
  --border-subtle: 1px solid rgba(200, 194, 180, 0.25);
  --border-card: 1px solid #C8C2B4;

  /* Shadows */
  --shadow-subtle: 0 1px 3px rgba(26, 26, 46, 0.04);
  --shadow-image: 0 8px 32px rgba(26, 26, 46, 0.12);

  /* Motion */
  --duration-fade: 800ms;
  --duration-reveal: 1200ms;
  --duration-hover: 300ms;
  --duration-dot-pulse: 2000ms;
  --easing-default: cubic-bezier(0.25, 0.1, 0.25, 1);
  --easing-reveal: cubic-bezier(0.0, 0.0, 0.2, 1);
}


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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-product);
  font-weight: var(--font-weight-regular);
  font-size: var(--text-body);
  line-height: 1.7;
  color: var(--color-text-primary);
  background-color: var(--color-night);
}

img {
  max-width: 100%;
  display: block;
}

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

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


/* === Film Grain Texture === */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 256px 256px;
  opacity: 0.025;
  pointer-events: none;
  z-index: 9999;
}

.grain::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 256px 256px;
  opacity: 0.035;
  pointer-events: none;
  z-index: 1;
}


/* === Navigation === */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 64px;
  z-index: 100;
  transition: background-color var(--duration-hover) var(--easing-default),
              border-color var(--duration-hover) var(--easing-default);
}

.nav--scrolled {
  background-color: var(--color-fog);
  border-bottom: var(--border-subtle);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  color: var(--color-text-on-dark);
  transition: color var(--duration-hover) var(--easing-default);
  display: flex;
  align-items: center;
}

.nav--scrolled .logo {
  color: var(--color-text-primary);
}

.logo-mark {
  height: 24px;
  width: auto;
}

.logo-dot {
  animation: dot-breathe var(--duration-dot-pulse) var(--easing-default) infinite;
}

@keyframes dot-breathe {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.45; }
}

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

.nav-links a {
  position: relative;
  font-family: var(--font-product);
  font-weight: var(--font-weight-medium);
  font-size: var(--text-label);
  color: var(--color-text-muted-dark);
  transition: color var(--duration-hover) var(--easing-default);
}

.nav-links a:hover {
  color: var(--color-text-on-dark);
}

.nav-links a:not(.nav-download)::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -4px;
  height: 1px;
  background-color: currentColor;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--duration-hover) var(--easing-default);
}

.nav-links a:not(.nav-download):hover::after,
.nav-links a:not(.nav-download):focus-visible::after {
  transform: scaleX(1);
}

.nav--scrolled .nav-links a {
  color: var(--color-text-secondary);
}

.nav--scrolled .nav-links a:hover {
  color: var(--color-text-primary);
}

.nav-links .nav-download {
  color: var(--color-text-on-dark);
  border: 1px solid rgba(255, 255, 255, 0.4);
  padding: 0.4rem 1rem;
  transition: color var(--duration-hover) var(--easing-default),
              border-color var(--duration-hover) var(--easing-default),
              background-color var(--duration-hover) var(--easing-default);
}

.nav-links .nav-download:hover {
  border-color: var(--color-text-on-dark);
  background-color: rgba(255, 255, 255, 0.1);
}

.nav--scrolled .nav-links .nav-download {
  color: var(--color-text-primary);
  border-color: var(--color-border);
}

.nav--scrolled .nav-links .nav-download:hover {
  border-color: var(--color-text-primary);
  background-color: rgba(26, 26, 46, 0.05);
}

/* Focus states */
.nav-links a:focus-visible,
.logo:focus-visible,
.btn-primary:focus-visible,
.btn-appstore:focus-visible,
.text-link:focus-visible {
  outline: 2px solid var(--color-forest);
  outline-offset: 2px;
}

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

.nav-hamburger span {
  display: block;
  width: 20px;
  height: 1px;
  background-color: var(--color-text-on-dark);
  transition: background-color var(--duration-hover) var(--easing-default),
              transform var(--duration-hover) var(--easing-default),
              opacity var(--duration-hover) var(--easing-default);
}

.nav--scrolled .nav-hamburger span {
  background-color: var(--color-text-primary);
}

.nav-hamburger.active span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}
.nav-hamburger.active span:nth-child(2) {
  opacity: 0;
}
.nav-hamburger.active span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Mobile menu overlay */
.mobile-menu {
  position: fixed;
  inset: 0;
  background-color: var(--color-night);
  z-index: 99;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-fade) var(--easing-default);
}

.mobile-menu.active {
  opacity: 1;
  pointer-events: auto;
}

.mobile-menu nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
}

.mobile-menu a {
  font-family: var(--font-product);
  font-weight: var(--font-weight-medium);
  font-size: var(--text-section);
  color: var(--color-text-on-dark);
}

.mobile-menu a:hover {
  color: var(--color-text-muted-dark);
}


/* === Hero === */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background-color: var(--color-night);
  background-image: url('assets/img/hero.jpg');
  background-image: image-set(
    url('assets/img/hero.avif') type('image/avif'),
    url('assets/img/hero.webp') type('image/webp'),
    url('assets/img/hero.jpg') type('image/jpeg'));
  background-position: center center;
  background-size: cover;
  background-repeat: no-repeat;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(26, 26, 46, 0.55), rgba(26, 26, 46, 0.8));
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: var(--space-md);
  max-width: 960px;
  font-family: var(--font-product);
}

.hero-tagline {
  font-family: var(--font-product);
  font-size: clamp(1.125rem, 2.2vw, 1.75rem);
  font-weight: var(--font-weight-regular);
  color: var(--color-text-on-dark);
  margin-top: var(--space-lg);
  letter-spacing: 0.02em;
  /* 0.01, not 0: an element first painted at opacity 0 never registers as an
     LCP candidate, and with the full-viewport hero background excluded by
     Chrome the page otherwise has none (Lighthouse NO_LCP error). */
  opacity: 0.01;
  animation: hero-reveal var(--duration-reveal) var(--easing-reveal) 400ms forwards;
}

.hero-divider {
  border: none;
  border-top: 1px solid rgba(200, 194, 180, 0.25);
  width: 100%;
  max-width: 480px;
  margin: var(--space-lg) auto;
  opacity: 0.01;
  animation: hero-reveal var(--duration-reveal) var(--easing-reveal) 600ms forwards;
}

.hero-cta {
  opacity: 0.01;
  animation: hero-reveal var(--duration-reveal) var(--easing-reveal) 800ms forwards;
}

.hero-meta {
  display: block;
  font-size: var(--text-label);
  color: var(--color-text-muted-dark);
  margin-top: var(--space-md);
  opacity: 0.01;
  animation: hero-reveal var(--duration-reveal) var(--easing-reveal) 1000ms forwards;
}

@keyframes hero-reveal {
  from {
    opacity: 0.01;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: var(--space-lg);
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  width: 1px;
  height: 40px;
  background-color: rgba(255, 255, 255, 0.3);
  animation: scroll-fade 2.5s var(--easing-default) infinite;
}

@keyframes scroll-fade {
  0%, 100% { opacity: 0; }
  40%, 60% { opacity: 1; }
}


/* === Sections === */
.section {
  position: relative;
}

.section-light {
  background-color: var(--color-fog);
  padding: var(--space-2xl) 0;
}

.section-dark {
  background-color: var(--color-night);
  padding: var(--space-2xl) 0;
}

.section-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}


/* === Scroll Reveal === */
.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity var(--duration-fade) var(--easing-reveal),
              transform var(--duration-fade) var(--easing-reveal);
}

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

.reveal-delay-1 { transition-delay: 100ms; }
.reveal-delay-2 { transition-delay: 200ms; }
.reveal-delay-3 { transition-delay: 300ms; }
.reveal-delay-4 { transition-delay: 400ms; }


/* === Philosophy Section === */
.section-philosophy h2 {
  font-family: var(--font-product);
  font-size: var(--text-section);
  font-weight: var(--font-weight-light);
  font-style: italic;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
  max-width: 38em;
  margin-bottom: var(--space-lg);
}

.section-philosophy p {
  max-width: 38em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-md);
}

.section-philosophy p:last-of-type {
  margin-bottom: 0;
}

.etymology {
  font-size: var(--text-body);
  color: var(--color-text-secondary);
  font-style: italic;
  font-variant: small-caps;
  letter-spacing: 0.03em;
  text-align: center;
  margin-top: var(--space-xl);
  margin-bottom: 0;
  margin-left: auto;
  margin-right: auto;
  padding-top: var(--space-md);
  padding-bottom: var(--space-md);
  border-top: var(--border-subtle);
  border-bottom: var(--border-subtle);
  max-width: 24em;
}

.philosophy-more {
  text-align: center;
  margin-top: var(--space-xl);
  font-size: var(--text-body-small);
}


/* === Product Section === */
.section-product {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.product-label {
  font-family: var(--font-product);
  font-size: var(--text-label);
  color: var(--color-text-secondary);
  letter-spacing: 0.05em;
  display: block;
  margin-bottom: var(--space-sm);
}

.product-text h2 {
  font-family: var(--font-product);
  font-size: var(--text-section);
  font-weight: var(--font-weight-semibold);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-md);
}

.product-text p {
  max-width: 38em;
  color: var(--color-text-primary);
}

.product-cta {
  margin-top: var(--space-md);
  font-size: var(--text-body-small);
}

/* Decorative route line that draws itself in ("Your run is a drawing") */
.route-draw {
  display: block;
  width: min(220px, 55%);
  height: auto;
  margin-bottom: var(--space-md);
  color: var(--color-text-primary);
  overflow: visible;
}

.route-draw path {
  fill: none;
  stroke: currentColor;
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  transition: stroke-dashoffset 1800ms var(--easing-reveal) 300ms;
}

.route-draw.visible path {
  stroke-dashoffset: 0;
}

.route-draw-dot {
  fill: var(--color-signal);
  opacity: 0;
  transition: opacity 600ms var(--easing-default) 2000ms;
}

.route-draw.visible .route-draw-dot {
  opacity: 1;
}


/* === App Mockup === */
.app-mockup {
  max-width: 320px;
  margin: 0 auto;
  border-radius: 32px;
  overflow: hidden;
  border: 2px solid var(--color-text-primary);
  box-shadow: 0 12px 48px rgba(26, 26, 46, 0.18);
}

.app-mockup img {
  width: 100%;
  height: auto;
  display: block;
  filter: saturate(0.85) contrast(1.05);
}

/* Watch variant: smaller frame, rounder corners, like the hardware. */
.app-mockup--watch {
  max-width: 220px;
  border-radius: 56px;
}


/* === Reversed product layout (image first on desktop) === */
@media (min-width: 961px) {
  .section-product.reverse .product-text { order: 2; }
  .section-product.reverse .app-mockup { order: 1; }
}

/* Eyebrow label above a section heading */
.section-eyebrow {
  font-family: var(--font-product);
  font-size: var(--text-label);
  color: var(--color-text-secondary);
  letter-spacing: 0.05em;
  display: block;
  margin-bottom: var(--space-sm);
}

/* Subtle inline text link (e.g. philosophy -> manifesto) */
.text-link {
  color: var(--color-text-secondary);
  text-decoration: none;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 1px;
  transition: color var(--duration-hover) var(--easing-default),
              border-color var(--duration-hover) var(--easing-default);
}

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


/* === Dagg Coaching (subscription) section === */
.section-coaching .section-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.coaching-text h2 {
  font-family: var(--font-product);
  font-size: var(--text-section);
  font-weight: var(--font-weight-semibold);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-md);
}

.coaching-text > p {
  max-width: 38em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-md);
}

.coaching-points {
  list-style: none;
  margin: 0 0 var(--space-lg);
  padding: 0;
}

.coaching-points li {
  position: relative;
  font-size: var(--text-body-small);
  color: var(--color-text-primary);
  line-height: 1.6;
  padding-left: var(--space-md);
  margin-bottom: var(--space-xs);
}

.coaching-points li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 8px;
  height: 1px;
  background-color: var(--color-text-secondary);
}

.coaching-meta {
  font-size: var(--text-body-small);
  color: var(--color-text-secondary);
  line-height: 1.6;
  padding-top: var(--space-md);
  border-top: var(--border-subtle);
  max-width: 38em;
}

.coaching-meta strong {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

/* Paired phone mockups */
.app-mockup-pair {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
}

.app-mockup-pair .app-mockup {
  margin: 0;
  max-width: 200px;
}

.app-mockup-pair .app-mockup:first-child {
  transform: translateY(var(--space-md));
}


/* === App Store download button === */
.btn-appstore {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-product);
  font-weight: var(--font-weight-medium);
  font-size: var(--text-body-small);
  color: var(--color-text-primary);
  background-color: #FFFFFF;
  padding: 1rem 2rem;
  border-radius: 0;
  transition: background-color var(--duration-hover) var(--easing-default),
              transform var(--duration-hover) var(--easing-default),
              box-shadow var(--duration-hover) var(--easing-default);
}

.btn-appstore:hover {
  background-color: var(--color-fog);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

.btn-appstore:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.app-store-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.cta-meta {
  display: block;
  font-size: var(--text-label);
  color: var(--color-text-muted-dark);
  margin-top: var(--space-md);
}

/* QR code for desktop visitors (phones tap the button instead) */
.cta-qr {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-xl);
}

.cta-qr svg {
  width: 108px;
  height: 108px;
  padding: 8px;
  background-color: var(--color-fog);
  color: var(--color-night);
}

.cta-qr-label {
  font-size: var(--text-label);
  color: var(--color-text-muted-dark);
}


/* === Atmospheric Break === */
.section-atmospheric {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background-color: var(--color-predawn);
  background-image: url('assets/img/break-fog.jpg');
  background-image: image-set(
    url('assets/img/break-fog.avif') type('image/avif'),
    url('assets/img/break-fog.webp') type('image/webp'),
    url('assets/img/break-fog.jpg') type('image/jpeg'));
  background-position: center center;
  background-size: cover;
  background-repeat: no-repeat;
}

.section-atmospheric-2 {
  min-height: 100vh;
  background-image: url('assets/img/break-woods.jpg');
  background-image: image-set(
    url('assets/img/break-woods.avif') type('image/avif'),
    url('assets/img/break-woods.webp') type('image/webp'),
    url('assets/img/break-woods.jpg') type('image/jpeg'));
}

.atmospheric-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(26, 26, 46, 0.4), rgba(26, 26, 46, 0.6));
  z-index: 1;
}

.pull-quote {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 32em;
  padding: var(--space-2xl) var(--space-md);
}

.pull-quote p {
  font-family: var(--font-product);
  font-size: var(--text-section);
  font-weight: var(--font-weight-light);
  font-style: italic;
  line-height: 1.15;
  color: var(--color-text-muted-dark);
}


/* === Feature Cards === */
.section-features .section-inner {
  max-width: 960px;
}

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

.feature-card {
  border: var(--border-card);
  padding: var(--space-lg);
  background: transparent;
}

.feature-label {
  font-family: var(--font-product);
  font-size: var(--text-label);
  color: var(--color-text-secondary);
  letter-spacing: 0.05em;
  display: block;
  margin-bottom: var(--space-sm);
}

.feature-card h3 {
  font-family: var(--font-product);
  font-size: var(--text-subsection);
  font-weight: var(--font-weight-semibold);
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-xs);
}

.feature-card p {
  font-size: var(--text-body-small);
  color: var(--color-text-primary);
  max-width: 38em;
}


/* === Anti-features Section === */
.section-anti {
  text-align: left;
}

.section-anti h2 {
  font-family: var(--font-product);
  font-size: var(--text-section);
  font-weight: var(--font-weight-light);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-text-on-dark);
  margin-bottom: var(--space-lg);
}

.anti-features {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.anti-item {
  position: relative;
  display: block;
  font-size: var(--text-body);
  line-height: 2;
  color: var(--color-text-muted-dark);
}

/* The strikethrough draws itself across each item after it appears */
.anti-item::after {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 100%;
  height: 1px;
  background-color: currentColor;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 500ms var(--easing-default);
}

.anti-item.visible::after {
  transform: scaleX(1);
}

.anti-item:nth-child(1)::after { transition-delay: 500ms; }
.anti-item:nth-child(2)::after { transition-delay: 650ms; }
.anti-item:nth-child(3)::after { transition-delay: 800ms; }
.anti-item:nth-child(4)::after { transition-delay: 950ms; }
.anti-item:nth-child(5)::after { transition-delay: 1100ms; }
.anti-item:nth-child(6)::after { transition-delay: 1250ms; }
.anti-item:nth-child(7)::after { transition-delay: 1400ms; }

.anti-closing {
  color: var(--color-text-on-dark);
  margin-top: var(--space-lg);
}


/* === CTA Section === */
.section-cta {
  background-color: var(--color-night);
  padding: var(--space-3xl) 0;
  text-align: center;
  border-top: var(--border-subtle);
}

.cta-content h2 {
  font-family: var(--font-product);
  font-size: var(--text-section);
  font-weight: var(--font-weight-light);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-text-on-dark);
  margin-bottom: var(--space-sm);
}

.cta-content > p {
  font-size: var(--text-body);
  color: var(--color-text-muted-dark);
  margin-bottom: var(--space-lg);
}

.btn-primary {
  display: inline-block;
  font-family: var(--font-product);
  font-weight: var(--font-weight-medium);
  font-size: var(--text-body-small);
  color: var(--color-text-primary);
  background-color: #FFFFFF;
  padding: 1rem 2.5rem;
  border: none;
  border-radius: 0;
  cursor: pointer;
  transition: background-color var(--duration-hover) var(--easing-default);
}

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

.platform-note {
  display: block;
  font-size: var(--text-label);
  color: var(--color-text-muted-dark);
  margin-top: var(--space-md);
}


/* === Screen-reader 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;
}

/* === Footer === */
.footer {
  background-color: var(--color-night);
  padding: var(--space-xl) 0;
  border-top: var(--border-subtle);
}

.footer-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-logo {
  color: var(--color-text-muted-dark);
  display: flex;
  align-items: center;
}

.footer-logo .logo-mark {
  height: 16px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-xs) var(--space-md);
}

.footer-links a {
  font-size: var(--text-label);
  color: var(--color-text-muted-dark);
  white-space: nowrap;
  transition: color var(--duration-hover) var(--easing-default);
}

.footer-links a:hover {
  color: var(--color-text-on-dark);
}

.footer-copyright {
  font-size: var(--text-label);
  color: var(--color-text-muted-dark);
  white-space: nowrap;
}


/* === Legal / Privacy Page === */
.page-secondary {
  background-color: var(--color-fog);
}

.page-secondary .nav {
  background-color: var(--color-fog);
  border-bottom: var(--border-subtle);
}

.page-secondary .logo {
  color: var(--color-text-primary);
}

.page-secondary .nav-links a {
  color: var(--color-text-secondary);
}

.page-secondary .nav-links a:hover {
  color: var(--color-text-primary);
}

.page-secondary .nav-hamburger span {
  background-color: var(--color-text-primary);
}

.legal-page {
  max-width: 720px;
  margin: 0 auto;
  padding: calc(64px + var(--space-xl)) var(--space-md) var(--space-xl);
}

.legal-title {
  font-family: var(--font-product);
  font-size: var(--text-section);
  font-weight: var(--font-weight-semibold);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-xs);
}

.legal-effective {
  font-family: var(--font-product);
  font-size: var(--text-label);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
}

.legal-summary {
  font-family: var(--font-product);
  font-size: var(--text-body);
  color: var(--color-text-primary);
  line-height: 1.7;
  padding: var(--space-lg);
  border: var(--border-card);
  margin-bottom: var(--space-xl);
}

.legal-section {
  margin-bottom: var(--space-xl);
}

.legal-section h2 {
  font-family: var(--font-product);
  font-size: var(--text-subsection);
  font-weight: var(--font-weight-semibold);
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-sm);
}

.legal-section h3 {
  font-family: var(--font-product);
  font-size: var(--text-body);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-top: var(--space-md);
  margin-bottom: var(--space-xs);
}

.legal-section p {
  color: var(--color-text-primary);
  margin-bottom: var(--space-sm);
}

.legal-section p:last-child {
  margin-bottom: 0;
}

.legal-section ul {
  list-style: none;
  padding-left: var(--space-md);
  margin-bottom: var(--space-sm);
}

.legal-section ul li {
  position: relative;
  color: var(--color-text-primary);
  margin-bottom: var(--space-xs);
}

.legal-section ul li::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--space-sm));
  top: 0.85em;
  width: 4px;
  height: 1px;
  background-color: var(--color-text-secondary);
}

.legal-label {
  font-family: var(--font-product);
  font-size: var(--text-label);
  color: var(--color-text-secondary);
  letter-spacing: 0.05em;
  display: block;
  margin-bottom: var(--space-xs);
}

.legal-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--space-sm);
  font-size: var(--text-body-small);
}

.legal-table th,
.legal-table td {
  text-align: left;
  padding: var(--space-sm);
  border-bottom: var(--border-subtle);
  color: var(--color-text-primary);
}

.legal-table th {
  font-weight: var(--font-weight-semibold);
  font-size: var(--text-label);
  color: var(--color-text-secondary);
  letter-spacing: 0.05em;
}

.legal-section a {
  color: var(--color-text-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--duration-hover) var(--easing-default);
}

.legal-section a:hover {
  color: var(--color-text-secondary);
}

.page-secondary .footer {
  background-color: var(--color-night);
}


/* === Responsive === */

/* Tablet */
@media (max-width: 960px) {
  .section-light,
  .section-dark {
    padding: var(--space-xl) 0;
  }

  .section-product {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .section-coaching .section-inner {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .app-mockup {
    max-width: 260px;
  }

  .feature-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

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

  .cta-qr {
    display: none;
  }

  .legal-page {
    padding-top: calc(64px + var(--space-lg));
  }

  .legal-table {
    font-size: var(--text-label);
  }
}

/* Mobile */
@media (max-width: 600px) {
  .nav-links {
    display: none;
  }

  .nav-hamburger {
    display: flex;
  }

  .section-cta {
    padding: var(--space-xl) 0;
  }

  .btn-primary {
    display: block;
    width: calc(100% - var(--space-md) * 2);
    max-width: 400px;
    margin: 0 auto;
    text-align: center;
  }

  .app-mockup-pair .app-mockup {
    max-width: 150px;
  }

  .app-mockup-pair {
    gap: var(--space-sm);
  }

  .pull-quote {
    padding: var(--space-xl) var(--space-md);
  }

  .section-atmospheric {
    min-height: 40vh;
  }

  .footer-links {
    gap: var(--space-md);
  }

  .legal-page {
    padding-top: calc(64px + var(--space-md));
    padding-left: var(--space-sm);
    padding-right: var(--space-sm);
  }

  .legal-summary {
    padding: var(--space-md);
  }

  .legal-table th,
  .legal-table td {
    padding: var(--space-xs);
  }
}


/* === Accessibility: Reduced Motion === */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

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

  .hero-tagline,
  .hero-divider,
  .hero-cta,
  .hero-meta {
    opacity: 1;
    animation: none;
  }

  .scroll-indicator {
    animation: none;
    opacity: 0.3;
  }

  .logo-dot {
    animation: none;
  }

  .route-draw path {
    stroke-dashoffset: 0;
  }

  .route-draw-dot {
    opacity: 1;
  }

  .anti-item::after {
    transform: scaleX(1);
  }

  html {
    scroll-behavior: auto;
  }
}


/* === Plan Builder Page === */
.plan-page {
  max-width: 840px;
  margin: 0 auto;
  padding: calc(64px + var(--space-xl)) var(--space-md) var(--space-xl);
}

.plan-intro {
  margin-bottom: var(--space-lg);
}

.plan-title {
  font-family: var(--font-product);
  font-size: var(--text-section);
  font-weight: var(--font-weight-semibold);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-sm);
}

.plan-lede {
  max-width: 38em;
  color: var(--color-text-primary);
}

/* --- Form: the instrument panel --- */
.plan-form {
  border: var(--border-card);
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.plan-field {
  border: none;
  min-width: 0;
}

.plan-field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.plan-label {
  font-family: var(--font-product);
  font-size: var(--text-label);
  color: var(--color-text-secondary);
  letter-spacing: 0.05em;
  display: block;
  margin-bottom: var(--space-xs);
}

.plan-optional {
  letter-spacing: 0;
  text-transform: none;
}

.plan-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.plan-chip {
  display: inline-block;
  border: 1px solid var(--color-border);
  padding: 0.5rem 1rem;
  font-size: var(--text-body-small);
  color: var(--color-text-primary);
  cursor: pointer;
  user-select: none;
  transition: background-color var(--duration-hover) var(--easing-default),
              color var(--duration-hover) var(--easing-default),
              border-color var(--duration-hover) var(--easing-default);
}

.plan-chip:hover {
  border-color: var(--color-text-primary);
}

input:checked + .plan-chip {
  background-color: var(--color-night);
  border-color: var(--color-night);
  color: var(--color-text-on-dark);
}

input:focus-visible + .plan-chip {
  outline: 2px solid var(--color-forest);
  outline-offset: 2px;
}

.plan-chip-square {
  min-width: 2.75rem;
  padding: 0.5rem 0;
  text-align: center;
}

.plan-custom-distance {
  margin-top: var(--space-sm);
  max-width: 240px;
}

.plan-form input[type="text"],
.plan-form input[type="date"],
.plan-form input[type="number"] {
  width: 100%;
  font: inherit;
  font-size: 1rem;
  color: var(--color-text-primary);
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: 0;
  padding: 0.6rem 0.75rem;
  transition: border-color var(--duration-hover) var(--easing-default);
}

.plan-form input:hover {
  border-color: var(--color-text-secondary);
}

.plan-form input:focus-visible {
  outline: 2px solid var(--color-forest);
  outline-offset: 1px;
}

.plan-input-unit {
  display: flex;
}

.plan-input-unit input {
  flex: 1;
  min-width: 0;
}

.plan-unit-suffix {
  display: flex;
  align-items: center;
  padding: 0 0.75rem;
  border: 1px solid var(--color-border);
  border-left: none;
  font-size: var(--text-body-small);
  color: var(--color-text-secondary);
  white-space: nowrap;
}

.plan-hint {
  display: block;
  font-size: var(--text-label);
  color: var(--color-text-secondary);
  margin-top: var(--space-xs);
}

.plan-error {
  color: var(--color-signal);
  font-size: var(--text-body-small);
  font-weight: var(--font-weight-semibold);
  margin: 0;
}

.plan-build {
  align-self: flex-start;
  font-family: var(--font-product);
  font-weight: var(--font-weight-semibold);
  font-size: var(--text-body-small);
  color: var(--color-text-on-dark);
  background-color: var(--color-night);
  padding: 1rem 2.5rem;
  border-radius: 0;
  transition: background-color var(--duration-hover) var(--easing-default);
}

.plan-build:hover {
  background-color: var(--color-predawn);
}

.plan-build:focus-visible {
  outline: 2px solid var(--color-forest);
  outline-offset: 2px;
}

/* --- Result --- */
.plan-result {
  margin-top: var(--space-xl);
  outline: none;
  scroll-margin-top: calc(64px + var(--space-sm));
}

.plan-summary {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
  padding: var(--space-md) 0;
  border-top: var(--border-card);
  border-bottom: var(--border-subtle);
  margin-bottom: var(--space-lg);
}

.plan-stat b {
  display: block;
  font-size: var(--text-subsection);
  font-weight: var(--font-weight-semibold);
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
  line-height: 1.2;
}

.plan-stat span {
  font-size: var(--text-label);
  color: var(--color-text-secondary);
  letter-spacing: 0.05em;
}

/* The week punch card: seven square day cells per week */
.plan-weeks {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.plan-week-row {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.plan-week-label {
  font-size: var(--text-label);
  color: var(--color-text-secondary);
  width: 2.5rem;
  flex-shrink: 0;
}

.plan-week-cells {
  display: flex;
  gap: 6px;
}

.plan-cell {
  position: relative;
  display: inline-block;
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.plan-cell-easy {
  border: 1px solid var(--color-text-primary);
}

.plan-cell-long {
  background-color: var(--color-night);
}

.plan-cell-quality {
  background-color: var(--color-signal);
}

.plan-cell-race {
  background-color: var(--color-signal);
  border: 2px solid var(--color-night);
}

.plan-cell-rest::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 3px;
  height: 3px;
  margin: -1.5px 0 0 -1.5px;
  background-color: var(--color-border);
}

.plan-week-total {
  margin-left: auto;
  font-size: var(--text-label);
  color: var(--color-text-secondary);
  white-space: nowrap;
}

.plan-legend {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-top: var(--space-sm);
  font-size: var(--text-label);
  color: var(--color-text-secondary);
}

.plan-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.plan-legend .plan-cell {
  width: 12px;
  height: 12px;
}

/* --- Actions --- */
.plan-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin: var(--space-lg) 0;
}

.plan-action {
  font-family: var(--font-product);
  font-size: var(--text-body-small);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
  padding: 0.65rem 1.25rem;
  transition: border-color var(--duration-hover) var(--easing-default);
}

.plan-action:hover {
  border-color: var(--color-text-primary);
}

.plan-action:focus-visible {
  outline: 2px solid var(--color-forest);
  outline-offset: 2px;
}

/* --- Detail table --- */
.plan-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-body-small);
}

.plan-table thead th {
  text-align: left;
  padding: var(--space-xs) var(--space-sm) var(--space-xs) 0;
  border-bottom: var(--border-card);
  font-weight: var(--font-weight-semibold);
  font-size: var(--text-label);
  color: var(--color-text-secondary);
  letter-spacing: 0.05em;
}

.plan-table td {
  padding: var(--space-sm) var(--space-sm) var(--space-sm) 0;
  border-bottom: var(--border-subtle);
  color: var(--color-text-primary);
  vertical-align: top;
}

.plan-table-week th {
  text-align: left;
  padding: var(--space-lg) 0 var(--space-xs);
  border-bottom: var(--border-card);
  font-weight: var(--font-weight-semibold);
  font-size: var(--text-label);
  color: var(--color-text-primary);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.plan-session-desc {
  display: block;
  font-size: var(--text-label);
  font-weight: var(--font-weight-regular);
  color: var(--color-text-secondary);
  max-width: 24em;
}

.plan-td-day,
.plan-td-dist,
.plan-td-pace {
  white-space: nowrap;
}

.plan-table-race b {
  color: var(--color-signal);
}

/* --- Print note (print only) --- */
.plan-print-note {
  display: none;
}

/* --- CTA --- */
.plan-cta {
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: var(--border-card);
}

.plan-cta p {
  max-width: 38em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-md);
}

.plan-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-product);
  font-weight: var(--font-weight-semibold);
  font-size: var(--text-body-small);
  color: var(--color-text-on-dark);
  background-color: var(--color-night);
  padding: 1rem 2rem;
  transition: background-color var(--duration-hover) var(--easing-default);
}

.plan-cta-btn:hover {
  background-color: var(--color-predawn);
}

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

.plan-cta-meta {
  display: block;
  font-size: var(--text-label);
  color: var(--color-text-secondary);
  margin-top: var(--space-sm);
}

/* --- About section --- */
.plan-about {
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: var(--border-subtle);
}

.plan-about h2 {
  font-family: var(--font-product);
  font-size: var(--text-subsection);
  font-weight: var(--font-weight-semibold);
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-sm);
}

.plan-about p {
  max-width: 38em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-sm);
}

.plan-about p:last-child {
  margin-bottom: 0;
}

/* --- FAQ --- */
.plan-faq {
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: var(--border-subtle);
}

.plan-faq h2 {
  font-family: var(--font-product);
  font-size: var(--text-subsection);
  font-weight: var(--font-weight-semibold);
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-sm);
}

.plan-faq h3 {
  font-family: var(--font-product);
  font-size: var(--text-body);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-top: var(--space-md);
  margin-bottom: var(--space-xs);
}

.plan-faq p {
  max-width: 38em;
  color: var(--color-text-primary);
}

/* --- Plan builder responsive --- */
@media (max-width: 600px) {
  .plan-page {
    padding-top: calc(64px + var(--space-lg));
    padding-left: var(--space-sm);
    padding-right: var(--space-sm);
  }

  .plan-form {
    padding: var(--space-md);
  }

  .plan-field-row {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .plan-build {
    align-self: stretch;
    text-align: center;
  }

  .plan-summary {
    gap: var(--space-md);
  }

  .plan-cell {
    width: 13px;
    height: 13px;
  }

  .plan-week-cells {
    gap: 4px;
  }

  .plan-table thead {
    display: none;
  }

  .plan-td-day {
    font-size: var(--text-label);
    color: var(--color-text-secondary);
  }
}

/* --- Plan builder print --- */
@media print {
  body,
  .page-secondary {
    background: #FFFFFF;
  }

  body::after {
    display: none;
  }

  .nav,
  .mobile-menu,
  .footer,
  .plan-intro .plan-lede,
  .plan-form,
  .plan-error,
  .plan-actions,
  .plan-cta,
  .plan-about,
  .plan-faq {
    display: none !important;
  }

  .plan-page {
    max-width: none;
    padding: 0;
  }

  .plan-result {
    margin-top: 1rem;
  }

  .plan-cell,
  .plan-cell-rest::after {
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }

  .plan-weeks {
    max-width: 480px;
  }

  .plan-table-week th {
    padding-top: 1.25rem;
  }

  .plan-print-note {
    display: block;
    margin-top: 1.5rem;
    font-size: var(--text-label);
    color: var(--color-text-secondary);
  }
}