/* ============================================
   QUANTUM REALITY SHIFT — styles.css
   ============================================ */

/* --- VARIABLES --- */

:root {
  /* Colors */
  --color-bg: #0A0A0F;
  --color-surface: #12121A;
  --color-surface-rgb: 18, 18, 26;
  --color-frost-rgb: 136, 136, 140;
  --color-text: #F0EDE6;
  --color-text-heading: #F0EDE6;
  --color-muted: #8B8799;
  --color-accent: #E8652B;
  --color-accent-rgb: 232, 101, 43;
  --color-accent-hover: #F07040;
  --color-glow: #7B5BF2;
  --color-glow-rgb: 123, 91, 242;
  --color-success: #22C55E;
  --color-success-rgb: 34, 197, 94;
  --color-border: rgba(255, 255, 255, 0.06);
  --color-border-hover: rgba(var(--color-accent-rgb), 0.35);
  --shadow-card-hover: 0 0 20px rgba(var(--color-accent-rgb), 0.1);
  --color-noise-overlay: rgba(255, 255, 255, 0.5);

  /* Fonts */
  --font-heading: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'Source Serif 4', Georgia, serif;
  --font-hero: 'Instrument Serif', Georgia, serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

  /* Z-index scale */
  --z-behind: -1;
  --z-base: 0;
  --z-above: 1;
  --z-particles: -2;
  --z-content: 5;
  --z-noise: 90;
  --z-header: 100;
  --z-mobile-menu: 200;
  --z-overlay: 300;
  --z-modal: 400;

  /* Container */
  --container-max: 1200px;
  --container-padding: 1.25rem;
  --container-narrow: 860px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  --transition-reveal: 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-out-expo: cubic-bezier(0.25, 0.46, 0.45, 0.94);

  /* Opacity */
  --opacity-body-text: 0.85;

  /* Radii */
  --radius-sm: 0.75rem;
  --radius-md: 1.5rem;
  --radius-lg: 2rem;
  --radius-pill: 100px;
}

/* --- RESET --- */

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

html {
  font-size: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
}

img, video {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-fast), transform var(--transition-fast);
}

a:hover {
  color: var(--color-accent-hover);
}

/* --- NOISE OVERLAY --- */

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: var(--z-noise);
  pointer-events: none;
  opacity: 0.04;
  filter: url(#noiseFilter);
  background: var(--color-noise-overlay);
}

/* --- TYPOGRAPHY --- */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-text-heading);
  line-height: 1.2;
  font-weight: 600;
}

h1 { font-size: 2.25rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.375rem; }
h4 { font-size: 1.125rem; }

@media (min-width: 768px) {
  h1 { font-size: 3rem; }
  h2 { font-size: 2.25rem; }
  h3 { font-size: 1.625rem; }
  h4 { font-size: 1.25rem; }
}

@media (min-width: 1280px) {
  h1 { font-size: clamp(3rem, 3.5vw, 4.5rem); }
  h2 { font-size: clamp(2.25rem, 2.5vw, 3rem); }
  h3 { font-size: clamp(1.625rem, 1.8vw, 2rem); }
  h4 { font-size: clamp(1.25rem, 1.3vw, 1.5rem); }
}

.section-heading {
  margin-bottom: 2rem;
  text-align: center;
}

@media (min-width: 768px) {
  .section-heading {
    margin-bottom: 3rem;
  }
}

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

/* --- BUTTONS --- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9375rem;
  padding: 0.875rem 2rem;
  border: none;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition:
    background-color var(--transition-fast),
    transform 0.25s var(--ease-out-expo),
    box-shadow 0.25s var(--ease-out-expo);
  min-height: 44px;
  min-width: 44px;
  text-decoration: none;
  letter-spacing: -0.01em;
}

.btn:hover {
  transform: scale(1.03);
}

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

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

.btn--primary:hover {
  background-color: var(--color-accent-hover);
  color: var(--color-bg);
  box-shadow: 0 0 30px rgba(var(--color-accent-rgb), 0.3), 0 0 60px rgba(var(--color-accent-rgb), 0.1);
}

.btn--lg {
  padding: 1rem 2.5rem;
  font-size: 1.0625rem;
}

.btn--sm {
  padding: 0.5rem 1.25rem;
  font-size: 0.8125rem;
}

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

.btn--outline:hover {
  background-color: rgba(var(--color-accent-rgb), 0.1);
  color: var(--color-accent-hover);
}

.btn__icon {
  flex-shrink: 0;
  margin-right: 0.5rem;
}

/* Focus states */
.btn:focus-visible,
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

/* --- LAYOUT --- */

main {
  position: relative;
  z-index: var(--z-content);
  flex-grow: 1;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* --- HEADER --- */

.header {
  position: fixed;
  top: 0.75rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: var(--z-header);
  width: calc(100% - 2rem);
  max-width: var(--container-max);
  transition: transform 0.4s var(--ease-out-expo);
}

.header__pill {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.625rem 1rem;
  border-radius: var(--radius-pill);
  background-color: transparent;
  border: 1px solid transparent;
  transition:
    background-color 0.5s var(--ease-out-expo),
    border-color 0.5s var(--ease-out-expo),
    box-shadow 0.5s var(--ease-out-expo);
}

.header--solid .header__pill {
  background-color: rgba(var(--color-surface-rgb), 0.75);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-color: var(--color-border);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3); /* black shadow — intentionally not themed */
}

.header__brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  transition: opacity var(--transition-fast);
}

.header__brand-logo {
  height: 32px;
  width: auto;
  display: block;
  transition: opacity var(--transition-fast);
}

.header__brand:hover .header__brand-logo {
  opacity: 0.8;
}

.header__nav {
  display: none;
}

@media (min-width: 768px) {
  .header__nav {
    display: flex;
    gap: 1.25rem;
    align-items: center;
  }
}

@media (min-width: 1280px) {
  .header__nav {
    gap: clamp(1.25rem, 1.5vw, 1.75rem);
  }
}

.header__nav-link {
  position: relative;
  color: var(--color-muted);
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 500;
  padding-bottom: 6px;
  transition: color var(--transition-fast);
  text-decoration: none;
}

.header__nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background-color: transparent;
  border-radius: 1px;
  transition:
    background-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

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

.header__nav-link.is-active {
  color: var(--color-text);
}

.header__nav-link.is-active::after {
  background-color: var(--color-accent);
  box-shadow: 0 0 8px rgba(var(--color-accent-rgb), 0.4);
}

.header__cta {
  display: none;
}

@media (min-width: 768px) {
  .header__cta {
    display: inline-flex;
  }
}

/* Hamburger */
.header__hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
}

@media (min-width: 768px) {
  .header__hamburger {
    display: none;
  }
}

.header__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
  transform-origin: center;
}

.header__hamburger.is-active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.header__hamburger.is-active span:nth-child(2) {
  opacity: 0;
}

.header__hamburger.is-active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --- MOBILE MENU --- */

.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: var(--z-mobile-menu);
  background-color: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s var(--ease-out-expo);
}

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

.mobile-menu__nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}

.mobile-menu__link {
  color: var(--color-text);
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 500;
  text-decoration: none;
}

.mobile-menu__link:hover {
  color: var(--color-accent);
}

.mobile-menu__cta {
  margin-top: 1rem;
}

/* --- HERO --- */

/* --- PARTICLE CANVAS (fixed background) --- */

.particle-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: var(--z-particles);
  pointer-events: none;
}

.hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 5rem var(--container-padding) 3rem;
}

.hero__content {
  position: relative;
  z-index: var(--z-content);
  max-width: var(--container-narrow);
  margin: 0 auto;
}

.hero__title {
  font-family: var(--font-hero);
  font-weight: 400;
  font-style: italic;
  font-size: 2.5rem;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 2rem;
  color: var(--color-text-heading);
}

.hero__title em {
  font-style: italic;
}

@media (min-width: 768px) {
  .hero__title {
    font-size: 3.5rem;
    margin-bottom: 2.5rem;
  }
}

@media (min-width: 1280px) {
  .hero__title {
    font-size: clamp(3.5rem, 4.2vw, 5.5rem);
  }
}

.hero__narrative {
  margin-bottom: 2.5rem;
}

.hero__narrative p {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--color-text);
  margin-bottom: 1rem;
  opacity: var(--opacity-body-text);
}

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

.hero__narrative em {
  font-style: italic;
  color: var(--color-accent);
  opacity: 1;
}

@media (min-width: 768px) {
  .hero__narrative p {
    font-size: 1.1875rem;
  }
}

@media (min-width: 1280px) {
  .hero__narrative p {
    font-size: clamp(1.1875rem, 1.2vw, 1.375rem);
  }
}

.hero__actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.hero__sub-cta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-muted);
  letter-spacing: 0.02em;
  text-align: center;
}

/* Hero load animation */
.hero__anim {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s var(--ease-out-expo), transform 0.8s var(--ease-out-expo);
}

.hero__anim.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- SECTIONS (base) --- */

section {
  padding: 5rem 0;
}

@media (min-width: 768px) {
  section {
    padding: 7rem 0;
  }
}

@media (min-width: 1280px) {
  section {
    padding: clamp(7rem, 8vw, 10rem) 0;
  }
}

/* --- Scroll Reveals --- */

.reveal {
  opacity: 0;
  transition: opacity var(--transition-reveal), transform var(--transition-reveal);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

.reveal--up {
  transform: translateY(30px);
}

.reveal--left {
  transform: translateX(-30px);
}

.reveal--right {
  transform: translateX(30px);
}

.reveal--zoom {
  transform: scale(0.96);
}

/* Stagger children */
.reveal-child {
  opacity: 0;
  transform: translateY(20px) scale(0.96);
  transition: opacity 0.6s var(--ease-out-expo), transform 0.6s var(--ease-out-expo);
}

.reveal-stagger.is-visible > .reveal-child:nth-child(1) { transition-delay: 0s; opacity: 1; transform: none; }
.reveal-stagger.is-visible > .reveal-child:nth-child(2) { transition-delay: 0.15s; opacity: 1; transform: none; }
.reveal-stagger.is-visible > .reveal-child:nth-child(3) { transition-delay: 0.3s; opacity: 1; transform: none; }
.reveal-stagger.is-visible > .reveal-child:nth-child(4) { transition-delay: 0.45s; opacity: 1; transform: none; }
.reveal-stagger.is-visible > .reveal-child:nth-child(5) { transition-delay: 0.6s; opacity: 1; transform: none; }
.reveal-stagger.is-visible > .reveal-child:nth-child(6) { transition-delay: 0.75s; opacity: 1; transform: none; }

/* --- SECTION: OBSERVATION --- */

.observation {
  position: relative;
}

.observation .container {
  max-width: var(--container-narrow);
  margin: 0 auto;
}

.observation__body p {
  font-size: 1.0625rem;
  line-height: 1.8;
  margin-bottom: 1.5rem;
  color: var(--color-text);
  opacity: var(--opacity-body-text);
}

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

.observation__body em {
  font-style: italic;
  color: var(--color-accent);
  opacity: 1;
}

@media (min-width: 768px) {
  .observation__body p {
    font-size: 1.125rem;
  }
}

@media (min-width: 1280px) {
  .observation__body p {
    font-size: clamp(1.125rem, 1.15vw, 1.3125rem);
  }
}

/* --- SECTION: HOW IT WORKS --- */

.how-it-works__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 1rem;
}

.how-it-works__label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--color-muted);
  letter-spacing: 0.08em;
}

@media (min-width: 768px) {
  .how-it-works__grid {
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: auto auto;
    gap: 1.5rem;
  }

  .how-it-works__label {
    align-self: end;
  }

  .how-it-works__label--daily {
    grid-column: 1 / 3;
    grid-row: 1;
  }

  .how-it-works__label--monthly {
    grid-column: 3;
    grid-row: 1;
  }

  .how-it-works__grid .step-card:nth-of-type(1) {
    grid-column: 1;
    grid-row: 2;
  }

  .how-it-works__grid .step-card:nth-of-type(2) {
    grid-column: 2;
    grid-row: 2;
  }

  .how-it-works__grid .step-card:nth-of-type(3) {
    grid-column: 3;
    grid-row: 2;
  }
}

@media (min-width: 1280px) {
  .how-it-works__grid {
    gap: clamp(1.5rem, 2vw, 2.5rem);
  }
}

.step-card {
  background-color: rgba(var(--color-frost-rgb), 0.06);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2rem 1.5rem;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.step-card:hover {
  border-color: var(--color-border-hover);
  box-shadow: var(--shadow-card-hover);
}

.step-card__number {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-accent);
  display: block;
  margin-bottom: 1.25rem;
  letter-spacing: 0.05em;
}

.step-card__title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.step-card__body {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--color-muted);
}

@media (min-width: 768px) {
  .step-card {
    padding: 2.5rem 2rem;
  }

  .step-card__body {
    font-size: 0.9375rem;
  }
}

@media (min-width: 1280px) {
  .step-card__title {
    font-size: clamp(1.25rem, 1.3vw, 1.5rem);
  }
}

/* --- SECTION: FRAMEWORK --- */

.framework .container {
  max-width: var(--container-max);
}

.framework__intro {
  max-width: var(--container-narrow);
  margin-left: auto;
  margin-right: auto;
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--color-text);
  opacity: var(--opacity-body-text);
  margin-bottom: 3rem;
}

@media (min-width: 768px) {
  .framework__intro {
    font-size: 1.125rem;
    margin-bottom: 4rem;
  }
}

.framework__forces {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-bottom: 3rem;
}

@media (min-width: 768px) {
  .framework__forces {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-bottom: 4rem;
  }
}

.force-card {
  background-color: rgba(var(--color-frost-rgb), 0.06);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2rem 1.5rem;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.force-card:hover {
  border-color: var(--color-border-hover);
  box-shadow: var(--shadow-card-hover);
}

.force-card__title {
  font-size: 1.375rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.force-card__body {
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--color-muted);
}

@media (min-width: 768px) {
  .force-card {
    padding: 2.5rem 2rem;
  }
}

.framework__bridge {
  max-width: var(--container-narrow);
  margin-left: auto;
  margin-right: auto;
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--color-text);
  opacity: var(--opacity-body-text);
  margin-bottom: 3rem;
}

@media (min-width: 768px) {
  .framework__bridge {
    margin-bottom: 4rem;
  }
}

.framework__actions {
  margin-bottom: 3rem;
}

.framework__actions-heading {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.action-pair {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

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

.action-card {
  background-color: rgba(var(--color-frost-rgb), 0.06);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2rem 1.5rem;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.action-card:hover {
  border-color: var(--color-border-hover);
  box-shadow: var(--shadow-card-hover);
}

.action-card__title {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  letter-spacing: 0.05em;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
  font-weight: 400;
}

.action-card__body {
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--color-muted);
}

.framework__nuance {
  max-width: var(--container-narrow);
  margin-left: auto;
  margin-right: auto;
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--color-text);
  opacity: var(--opacity-body-text);
  margin-bottom: 3rem;
}

@media (min-width: 768px) {
  .framework__nuance {
    margin-bottom: 4rem;
  }
}

/* Matrix */
.matrix {
  margin-bottom: 3rem;
}

@media (min-width: 768px) {
  .matrix {
    margin-bottom: 4rem;
  }
}

.matrix__grid {
  display: grid;
  grid-template-columns: auto 1fr 1fr;
  gap: 0;
  max-width: 100%;
  margin: 0 auto;
}

.matrix__corner {
  background-color: transparent;
  padding: 1rem;
}

.matrix__col-header {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 1rem 1.25rem;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}

.matrix__row-header {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 1.25rem 1rem;
  display: flex;
  align-items: center;
  writing-mode: horizontal-tb;
}

.matrix__cell {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  border-radius: 0;
}

/* Round the corners of the grid */
.matrix__cell:nth-of-type(1) {
  border-radius: var(--radius-sm) 0 0 0;
}

.matrix__cell:nth-of-type(2) {
  border-radius: 0 var(--radius-sm) 0 0;
}

.matrix__cell:nth-of-type(3) {
  border-radius: 0 0 0 var(--radius-sm);
}

.matrix__cell:nth-of-type(4) {
  border-radius: 0 0 var(--radius-sm) 0;
}

.matrix__cell--highlight {
  border-color: rgba(var(--color-accent-rgb), 0.25);
  box-shadow: inset 0 0 30px rgba(var(--color-accent-rgb), 0.06);
}

.matrix__cell--neutral {
  opacity: 0.8;
}

.matrix__cell--warning {
  border-color: rgba(var(--color-accent-rgb), 0.12);
}

.matrix__cell--danger {
  opacity: 0.6;
}

.matrix__icon {
  color: var(--color-accent);
  margin-bottom: 0.5rem;
  flex-shrink: 0;
}

.matrix__label {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-heading);
}

.matrix__sublabel {
  font-size: 0.8125rem;
  color: var(--color-muted);
}

@media (min-width: 768px) {
  .matrix__cell {
    padding: 1.5rem;
  }
}

/* Filter / 3-Question */
.filter {
  max-width: var(--container-narrow);
  margin-left: auto;
  margin-right: auto;
}

.filter__item {
  display: flex;
  gap: 1rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--color-border);
  align-items: flex-start;
  text-align: left;
}

.filter__item:first-child {
  border-top: 1px solid var(--color-border);
}

.filter__item--emphasis {
  padding-top: 2rem;
  padding-bottom: 2rem;
}

.filter__item--emphasis .filter__text {
  color: var(--color-text-heading);
  opacity: 1;
}

.filter__number {
  font-family: var(--font-mono);
  font-size: 1.125rem;
  color: var(--color-accent);
  font-weight: 400;
  line-height: 1.7;
  flex-shrink: 0;
  width: 1.5rem;
}

.filter__text {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--color-text);
  opacity: var(--opacity-body-text);
}

.filter__text strong {
  color: var(--color-text-heading);
  font-weight: 600;
}

@media (min-width: 768px) {
  .filter__text {
    font-size: 1rem;
  }
}

/* --- SECTION: OUTPUT (What You Get) --- */

.output__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .output__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
}

@media (min-width: 1280px) {
  .output__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: clamp(1.5rem, 2vw, 2.5rem);
  }
}

.output-card {
  background-color: rgba(var(--color-frost-rgb), 0.06);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.output-card:hover {
  border-color: var(--color-border-hover);
  box-shadow: var(--shadow-card-hover);
}

.output-card__header {
  padding: 0.75rem 1.5rem;
  border-bottom: 1px solid var(--color-border);
  background-color: rgba(var(--color-glow-rgb), 0.02);
}

.output-card__filename {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-muted);
  letter-spacing: 0.02em;
}

.output-card__body {
  padding: 1.5rem;
}

.output-card__title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.output-card__body p {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--color-muted);
}

@media (min-width: 768px) {
  .output-card__body {
    padding: 2rem;
  }
}

/* --- SECTION: STORY --- */

.story .container {
  max-width: var(--container-narrow);
  margin: 0 auto;
}

.story__body p {
  font-size: 1.0625rem;
  line-height: 1.8;
  margin-bottom: 1.5rem;
  color: var(--color-text);
  opacity: var(--opacity-body-text);
}

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

.story__attribution {
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--color-text-heading);
  opacity: 1;
  font-style: normal;
}

@media (min-width: 768px) {
  .story__body p {
    font-size: 1.125rem;
  }
}

/* --- SECTION: GETTING STARTED --- */

.getting-started .container {
  max-width: var(--container-narrow);
  margin: 0 auto;
}

.getting-started__requirements {
  font-size: 0.875rem;
  color: var(--color-muted);
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

@media (min-width: 768px) {
  .getting-started__requirements {
    font-size: 0.9375rem;
  }
}

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

.getting-started__steps {
  margin-bottom: 2.5rem;
}

.setup-step {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  text-align: left;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--color-border);
}

.setup-step:first-child {
  border-top: 1px solid var(--color-border);
}

.setup-step__number {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--color-accent);
  flex-shrink: 0;
  width: 1.5rem;
  line-height: 1.7;
}

.setup-step__text {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
}

.getting-started__note {
  font-size: 0.9375rem;
  color: var(--color-muted);
  margin-bottom: 2rem;
  line-height: 1.7;
}

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

/* --- LEGAL PAGES (terms, disclaimer) --- */

.legal {
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding: 8rem var(--container-padding) 5rem;
}

.legal__title {
  font-size: 2.25rem;
  margin-bottom: 0.75rem;
}

.legal__effective {
  font-size: 0.875rem;
  color: var(--color-muted);
  margin-bottom: 3rem;
}

.legal h2 {
  font-size: 1.25rem;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  text-align: left;
}

.legal p {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--color-text);
  opacity: var(--opacity-body-text);
  margin-bottom: 1.25rem;
}

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

.legal p strong {
  color: var(--color-text-heading);
  font-weight: 600;
}

.legal ul {
  list-style: none;
  padding: 0;
  margin-bottom: 1.25rem;
}

.legal ul li {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--color-text);
  opacity: var(--opacity-body-text);
  padding-left: 1.5rem;
  position: relative;
  margin-bottom: 0.5rem;
}

.legal ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.75em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-accent);
}

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

.legal__contact {
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

@media (min-width: 768px) {
  .legal__title {
    font-size: 3rem;
  }

  .legal h2 {
    font-size: 1.5rem;
  }
}

/* --- CTA terms note --- */

.cta-terms {
  font-size: 0.6875rem;
  color: var(--color-muted);
  margin-top: 0.5rem;
  text-align: center;
}

.cta-terms a {
  color: var(--color-muted);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.cta-terms a:hover {
  color: var(--color-text);
}

/* --- SECTION: SUPPORT --- */

.support .container {
  max-width: var(--container-narrow);
  margin: 0 auto;
}

.support__body {
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--color-text);
  opacity: var(--opacity-body-text);
  margin-bottom: 2.5rem;
}

@media (min-width: 768px) {
  .support__body {
    font-size: 1.125rem;
  }
}

.support__cta {
  text-align: center;
  margin-bottom: 1.25rem;
}

.support__note {
  font-size: 0.875rem;
  color: var(--color-muted);
  line-height: 1.7;
  text-align: center;
}

/* --- SECTION: FAQ --- */

.faq .container {
  max-width: var(--container-narrow);
  margin: 0 auto;
}

.faq__list {
  border-top: 1px solid var(--color-border);
}

.faq__item {
  border-bottom: 1px solid var(--color-border);
}

.faq__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.5rem 0;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  min-height: 44px;
}

.faq__question {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text);
  transition: color var(--transition-fast);
}

.faq__trigger:hover .faq__question {
  color: var(--color-accent);
}

.faq__icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  position: relative;
  transition: transform 0.3s var(--ease-out-expo);
}

.faq__icon::before,
.faq__icon::after {
  content: '';
  position: absolute;
  background-color: var(--color-accent);
  border-radius: 1px;
}

.faq__icon::before {
  top: 50%;
  left: 50%;
  width: 14px;
  height: 2px;
  transform: translate(-50%, -50%);
}

.faq__icon::after {
  top: 50%;
  left: 50%;
  width: 2px;
  height: 14px;
  transform: translate(-50%, -50%);
  transition: transform 0.3s var(--ease-out-expo), opacity 0.3s var(--ease-out-expo);
}

.faq__item.is-open .faq__icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
  opacity: 0;
}

.faq__answer {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.4s var(--ease-out-expo);
}

.faq__item.is-open .faq__answer {
  grid-template-rows: 1fr;
}

.faq__answer-inner {
  overflow: hidden;
}

.faq__answer p {
  padding-bottom: 1.5rem;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--color-muted);
}

@media (min-width: 768px) {
  .faq__question {
    font-size: 1.0625rem;
  }

  .faq__answer p {
    font-size: 1rem;
  }
}

/* --- FOOTER --- */

.footer {
  position: relative;
  z-index: var(--z-content);
  background-color: var(--color-surface);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  margin-top: 2rem;
  padding: 3rem 0 2rem;
}

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

.footer__top {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 2rem;
}

@media (min-width: 768px) {
  .footer__top {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
  }
}

.footer__brand {
  flex-shrink: 0;
}

.footer__brand-logo {
  height: 40px;
  width: auto;
  display: block;
  margin-bottom: 0.5rem;
}

.footer__tagline {
  font-size: 0.875rem;
  color: var(--color-muted);
  font-style: italic;
}

.footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
}

.footer__links a {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  color: var(--color-muted);
  transition: color var(--transition-fast);
  text-decoration: none;
}

.footer__links a:hover {
  color: var(--color-text);
}

.footer__link--icon {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
}

.footer__disclaimer {
  font-size: 0.8125rem;
  color: var(--color-accent);
  font-style: italic;
  line-height: 1.7;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 2rem;
}

.footer__bottom {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.footer__creator {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.footer__creator span {
  font-size: 0.8125rem;
  color: var(--color-muted);
}

.footer__creator a {
  font-size: 0.8125rem;
  color: var(--color-muted);
  text-decoration: none;
}

.footer__creator a:hover {
  color: var(--color-accent);
}

.footer__social {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-muted);
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer__social:hover {
  color: var(--color-text);
}

/* --- REDUCED MOTION --- */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0s !important;
  }

  .reveal,
  .reveal--up,
  .reveal--left,
  .reveal--right,
  .reveal--zoom,
  .reveal-child,
  .hero__anim {
    opacity: 1 !important;
    transform: none !important;
  }

  .particle-canvas {
    display: none !important;
  }
}