:root {
  --color-warm-white: #fcfaf5;
  --color-pale-stone: #e9e4da;
  --color-lavender-mist: #c9c2d9;
  --color-soft-mint: #c8ded0;
  --color-charcoal: #292a2d;
  --color-slate: #62636a;
  --color-line-stone: #d7d1c6;
  --color-lavender-deep: #716684;
  --color-mint-deep: #47715f;

  --color-page: var(--color-warm-white);
  --color-surface: #ffffff;
  --color-surface-muted: var(--color-pale-stone);
  --color-text: var(--color-charcoal);
  --color-text-muted: var(--color-slate);
  --color-border: var(--color-line-stone);
  --color-link: var(--color-lavender-deep);
  --color-focus: var(--color-lavender-deep);
  --color-success: var(--color-mint-deep);

  --font-body: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-heading: Manrope, Inter, ui-sans-serif, system-ui, sans-serif;

  --font-size-12: 0.75rem;
  --font-size-14: 0.875rem;
  --font-size-16: 1rem;
  --font-size-18: 1.125rem;
  --font-size-22: 1.375rem;
  --font-size-30: 1.875rem;
  --font-size-40: 2.5rem;
  --font-size-56: 3.5rem;
  --font-size-68: 4.25rem;

  --line-height-tight: 1.12;
  --line-height-heading: 1.18;
  --line-height-body: 1.62;
  --line-height-relaxed: 1.7;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-24: 6rem;

  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-round: 50%;

  --border-width: 1px;
  --border: var(--border-width) solid var(--color-border);
  --shadow-floating: 0 8px 24px rgb(41 42 45 / 8%);

  --sidebar-width: 15.5rem;
  --content-max-width: 73.75rem;
  --container-padding: 4rem;
  --container-padding-tablet: 2rem;
  --container-padding-mobile: 1.25rem;

  --section-space: 6rem;
  --section-space-tablet: 4.5rem;
  --section-space-mobile: 3.5rem;

  --transition-fast: 180ms ease-out;
}

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

html {
  min-width: 0;
  scroll-behavior: smooth;
  text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
}

body {
  min-width: 0;
  min-height: 100vh;
  margin: 0;
  overflow-wrap: break-word;
  background: var(--color-page);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: clamp(1rem, 0.96rem + 0.18vw, 1.125rem);
  font-weight: 400;
  line-height: var(--line-height-body);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection {
  background: var(--color-lavender-mist);
  color: var(--color-charcoal);
}

img,
picture,
svg,
canvas,
video,
iframe,
embed,
object {
  display: block;
  max-inline-size: 100%;
}

img,
video {
  block-size: auto;
}

svg {
  flex: none;
}

button,
input,
select,
textarea {
  color: inherit;
  font: inherit;
}

button,
select {
  text-transform: none;
}

button,
[type="button"],
[type="reset"],
[type="submit"] {
  cursor: pointer;
}

button:disabled,
input:disabled,
select:disabled,
textarea:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

textarea {
  min-block-size: 7rem;
  resize: vertical;
}

input,
select,
textarea {
  inline-size: 100%;
  border: var(--border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  padding: 0.7rem 0.75rem;
  line-height: 1.5;
}

input::placeholder,
textarea::placeholder {
  color: var(--color-slate);
  opacity: 1;
}

fieldset {
  min-inline-size: 0;
  margin: 0 0 var(--space-6);
  padding: var(--space-4);
  border: var(--border);
}

legend {
  padding-inline: var(--space-2);
  font-family: var(--font-heading);
  font-weight: 700;
}

table {
  inline-size: 100%;
  border-collapse: collapse;
  border-spacing: 0;
}

th,
td {
  padding: var(--space-3);
  border-block-end: var(--border);
  text-align: start;
  vertical-align: top;
}

th {
  font-family: var(--font-heading);
  font-weight: 700;
}

a {
  color: var(--color-link);
  text-decoration-line: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.16em;
}

a:hover {
  color: var(--color-charcoal);
  text-decoration-thickness: 2px;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
summary:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  max-inline-size: 24ch;
  margin: 0 0 var(--space-4);
  color: var(--color-charcoal);
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: var(--line-height-heading);
  text-wrap: balance;
}

h1 {
  font-size: clamp(2.5rem, 4vw + 1rem, 4.25rem);
  line-height: 1.05;
}

h2 {
  font-size: clamp(1.875rem, 2vw + 1rem, 3.5rem);
  line-height: 1.1;
}

h3 {
  font-size: clamp(1.375rem, 1vw + 1rem, 1.875rem);
  line-height: 1.2;
}

h4 {
  font-size: clamp(1.125rem, 0.5vw + 1rem, 1.375rem);
}

h5,
h6 {
  font-size: 1rem;
  line-height: 1.3;
}

p {
  margin: 0 0 var(--space-6);
}

ul,
ol {
  margin: 0 0 var(--space-6);
  padding-inline-start: 1.25rem;
}

li::marker {
  color: var(--color-lavender-deep);
}

blockquote {
  margin: 0 0 var(--space-6);
  padding: var(--space-4) var(--space-6);
  border-inline-start: 3px solid var(--color-lavender-deep);
  color: var(--color-slate);
  font-size: 1.05em;
}

figure {
  margin: 0 0 var(--space-6);
}

figcaption {
  margin-block-start: var(--space-3);
  color: var(--color-slate);
  font-size: var(--font-size-14);
  line-height: 1.43;
}

hr {
  block-size: 1px;
  margin: var(--space-8) 0;
  border: 0;
  background: var(--color-border);
}

small {
  font-size: var(--font-size-12);
  line-height: 1.33;
}

strong,
b {
  font-weight: 700;
}

em,
i {
  font-style: italic;
}

code,
kbd,
samp,
pre {
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
}

code,
kbd,
samp {
  border-radius: var(--radius-sm);
  background: var(--color-pale-stone);
  padding: 0.1em 0.3em;
  font-size: 0.9em;
}

pre {
  max-inline-size: 100%;
  margin: 0 0 var(--space-6);
  overflow: auto;
  border: var(--border);
  border-radius: var(--radius-md);
  background: var(--color-pale-stone);
  padding: var(--space-4);
  font-size: var(--font-size-14);
  line-height: 1.5;
}

pre code {
  padding: 0;
  background: transparent;
}

details {
  margin: 0 0 var(--space-4);
  border: var(--border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  padding: var(--space-3) var(--space-4);
}

summary {
  cursor: pointer;
  color: var(--color-charcoal);
  font-family: var(--font-heading);
  font-weight: 700;
}

summary + * {
  margin-block-start: var(--space-3);
}

main,
article,
section,
aside,
header,
footer,
nav,
form,
fieldset,
div {
  min-inline-size: 0;
}

.container {
  inline-size: min(100%, var(--content-max-width));
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

.container--wide {
  max-inline-size: none;
}

.section {
  padding-block: var(--section-space);
}

.section--compact {
  padding-block: var(--space-8);
}

.surface {
  border: var(--border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

.surface--muted {
  background: var(--color-surface-muted);
}

.surface--lavender {
  background: var(--color-lavender-mist);
}

.surface--mint {
  background: var(--color-soft-mint);
}

.card {
  min-inline-size: 0;
  border: var(--border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  padding: var(--space-6);
}

.card > :last-child,
.panel > :last-child,
.stack > :last-child,
.content-list > :last-child {
  margin-block-end: 0;
}

.card--floating {
  box-shadow: var(--shadow-floating);
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.card--floating:hover {
  border-color: var(--color-lavender-deep);
  transform: translateY(-2px);
}

.panel {
  min-inline-size: 0;
  border: var(--border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  padding: var(--space-8);
}

.eyebrow {
  margin: 0 0 var(--space-2);
  color: var(--color-slate);
  font-size: var(--font-size-12);
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1.33;
  text-transform: uppercase;
}

.caption,
.meta {
  color: var(--color-slate);
  font-size: var(--font-size-14);
  line-height: 1.43;
}

.stack {
  display: flex;
  min-inline-size: 0;
  flex-direction: column;
  align-items: stretch;
  gap: var(--space-4);
}

.stack--compact {
  gap: var(--space-2);
}

.stack--spacious {
  gap: var(--space-8);
}

.cluster {
  display: flex;
  min-inline-size: 0;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
}

.cluster > * {
  min-inline-size: 0;
}

.cluster--compact {
  gap: var(--space-2);
}

.cluster--spacious {
  gap: var(--space-6);
}

.content-list {
  margin: 0 0 var(--space-6);
  padding: 0;
  list-style: none;
}

.content-list > .button,
.button-link {
  display: inline-flex;
  min-inline-size: 0;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  border: 1px solid var(--color-charcoal);
  border-radius: var(--radius-sm);
  background: var(--color-charcoal);
  color: var(--color-warm-white);
  padding: 0.65rem 0.9rem;
  font-family: var(--font-heading);
  font-size: var(--font-size-16);
  font-weight: 700;
  line-height: 1.25;
  text-align: center;
  text-decoration: none;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.button:hover,
.button-link:hover {
  border-color: var(--color-lavender-deep);
  background: var(--color-lavender-deep);
  color: var(--color-warm-white);
  text-decoration: none;
}

.button--outline,
.button-link--outline {
  background: transparent;
  color: var(--color-charcoal);
}

.button--outline:hover,
.button-link--outline:hover {
  background: var(--color-lavender-mist);
  color: var(--color-charcoal);
}

.button--quiet,
.button-link--quiet {
  border-color: var(--color-line-stone);
  background: var(--color-pale-stone);
  color: var(--color-charcoal);
}

.button--quiet:hover,
.button-link--quiet:hover {
  border-color: var(--color-lavender-deep);
  background: var(--color-lavender-mist);
  color: var(--color-charcoal);
}

.google-play-badge {
  display: inline-flex;
  max-inline-size: 100%;
  line-height: 0;
  text-decoration: none;
}

.google-play-badge img {
  inline-size: 11.875rem; /* 190px, natural 3:1 badge ratio */
  block-size: auto;
  max-inline-size: 100%;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.google-play-badge:hover img,
.google-play-badge:focus-visible img {
  opacity: 0.85;
  transform: translateY(-1px);
}

.status-marker {
  display: inline-grid;
  inline-size: 1.75rem;
  block-size: 1.75rem;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-round);
  background: var(--color-warm-white);
  color: var(--color-charcoal);
  font-size: var(--font-size-14);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  line-height: 1;
}

.status-marker--complete {
  border-color: var(--color-mint-deep);
  background: var(--color-soft-mint);
  color: var(--color-mint-deep);
}

.visually-hidden {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  margin: -1px;
  padding: 0;
  white-space: nowrap;
}

.skip-link {
  position: fixed;
  z-index: 100;
  inset-block-start: var(--space-3);
  inset-inline-start: var(--space-3);
  transform: translateY(-200%);
  border-radius: var(--radius-sm);
  background: var(--color-charcoal);
  color: var(--color-warm-white);
  padding: var(--space-3) var(--space-4);
  font-weight: 700;
}

.skip-link:focus {
  transform: translateY(0);
}

@media (max-width: 899px) {
  :root {
    --container-padding: var(--container-padding-tablet);
    --section-space: var(--section-space-tablet);
  }
}

@media (max-width: 599px) {
  :root {
    --container-padding: var(--container-padding-mobile);
    --section-space: var(--section-space-mobile);
  }

  h1 {
    font-size: clamp(2rem, 9vw, 2.625rem);
  }

  h2 {
    font-size: clamp(1.875rem, 7vw, 2.25rem);
  }

  .card {
    padding: var(--space-4);
  }

  .panel {
    padding: var(--space-6);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms;
    animation-duration: 0.01ms;
    animation-iteration-count: 1;
    scroll-behavior: auto;
  }

  .card--floating:hover {
    transform: none;
  }
}