:root {
  color-scheme: dark;
  --bg-deep: #0d0d0d;
  --bg-surface: #161616;
  --bg-card: #1c1c1c;
  --bg-card-hover: #242424;
  --border: #2a2a2a;
  --border-strong: #3a3a3a;
  --text-primary: #f4f4f4;
  --text-secondary: #b9b9b9;
  --text-muted: #7a7a7a;
  --accent: #ffffff;
  --accent-hover: #d4d4d4;
  --accent-ink: #0d0d0d;
  --max-width: 1180px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, "Inter", "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg-deep);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  line-height: 1.5;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1 0 auto;
}

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

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 120ms ease;
}

a:hover,
a:focus-visible {
  color: var(--accent-hover);
  text-decoration: underline;
}

a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  padding: 10px 14px;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 700;
  border-radius: var(--radius-sm);
  z-index: 100;
}

.skip-link:focus {
  left: 12px;
  top: 12px;
}

/* -------- Header -------- */

.site-header {
  background: transparent;
  padding: 4px 0;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 16px;
  padding-top: 18px;
  padding-bottom: 6px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text-primary);
  font-weight: 800;
  letter-spacing: 0.3px;
  font-size: 20px;
}

.brand:hover,
.brand:focus-visible {
  color: var(--text-primary);
  text-decoration: none;
}

.brand__mark {
  display: block;
  flex-shrink: 0;
}

/* -------- Manifesto (single-page landing) -------- */

.manifesto {
  padding: 24px 0 80px;
}

@media (max-width: 600px) {
  .manifesto {
    padding: 16px 0 56px;
  }
}

.manifesto__inner {
  max-width: 720px;
  margin: 0 auto;
}

.manifesto__eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 22px;
}

.manifesto__title {
  font-size: clamp(28px, 4.9vw, 50px);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.04;
  margin: 0 0 36px;
  color: var(--text-primary);
}

.manifesto__mascot {
  display: flex;
  justify-content: flex-start;
  margin: 0 0 24px;
}

.manifesto__mascot img {
  width: 100%;
  max-width: 192px;
  height: auto;
  /* image is a pale-white seal silhouette — make it pure white on the dark bg */
  filter: brightness(0) invert(1);
  opacity: 0.95;
}

@media (max-width: 600px) {
  .manifesto__mascot img {
    max-width: 144px;
  }
}

.manifesto__body {
  margin: 0 0 40px;
}

.manifesto__body p {
  margin: 0 0 18px;
  font-size: 17px;
  line-height: 1.7;
  color: var(--text-secondary);
}

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

.manifesto__contact {
  margin: 26px 0 0;
  color: var(--text-muted);
  font-size: 14px;
}

/* Inline "Read more" toggle at end of the lead paragraph */

.manifesto__lead {
  margin: 0 0 18px;
}

.manifesto__more-toggle {
  display: inline;
  margin: 0 0 0 4px;
  padding: 0;
  font: inherit;
  font-weight: 700;
  color: var(--accent);
  background: transparent;
  border: 0;
  cursor: pointer;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  -webkit-tap-highlight-color: transparent;
  text-decoration: none;
  white-space: nowrap;
}

.manifesto__more-toggle::after {
  content: ' \25BE';
  font-size: 0.85em;
  margin-left: 2px;
}

.manifesto__more-toggle[aria-expanded="true"]::after {
  content: ' \25B4';
}

.manifesto__more-toggle:hover,
.manifesto__more-toggle:focus-visible {
  color: var(--accent-hover);
  text-decoration: underline;
}

.manifesto__more-body {
  margin-top: 0;
}

.manifesto__more-body p {
  margin: 0 0 18px;
  font-size: 17px;
  line-height: 1.7;
  color: var(--text-secondary);
}

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

/* -------- Signup form -------- */

.signup__intro {
  margin: 0 0 10px;
  color: var(--text-muted);
  font-size: 12px;
  line-height: 1.5;
}

.signup-form {
  margin: 0 0 8px;
  position: relative;
}

.signup-form__row {
  display: flex;
  gap: 8px;
  max-width: 560px;
  align-items: stretch;
}

@media (max-width: 540px) {
  .signup-form__row {
    flex-direction: column;
    max-width: none;
    gap: 10px;
  }
  .signup-form__input,
  .signup-form__btn {
    width: 100%;
    height: 48px;
  }
}

.signup-form__input {
  flex: 1 1 auto;
  min-width: 0;
  height: 46px;
  padding: 0 14px;
  font: inherit;
  font-size: 16px; /* >=16px prevents iOS zoom-on-focus */
  line-height: 1.2;
  color: var(--text-primary);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  outline: none;
  box-shadow: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  -webkit-tap-highlight-color: transparent;
  transition: border-color 150ms ease, box-shadow 150ms ease;
}

.signup-form__input::placeholder {
  color: var(--text-muted);
}

.signup-form__input:focus,
.signup-form__input:focus-visible {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.14);
}

.signup-form__btn {
  flex: 0 0 auto;
  height: 46px;
  padding: 0 18px;
  font: inherit;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.2px;
  color: var(--accent-ink);
  background-color: var(--accent);
  background-image: none;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  -webkit-tap-highlight-color: transparent;
  box-shadow: none;
  text-shadow: none;
  transition: background-color 150ms ease, transform 100ms ease;
}

.signup-form__btn:hover,
.signup-form__btn:focus-visible {
  background: var(--accent-hover);
}

.signup-form__btn:active {
  transform: translateY(1px);
}

.signup-form__btn[disabled] {
  opacity: 0.7;
  cursor: progress;
}

.signup-form__status {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.5;
  min-height: 1em;
}

.signup-form__status--ok {
  color: var(--text-primary);
  font-weight: 600;
}

.signup-form__status--err {
  color: var(--text-secondary);
  font-weight: 600;
}


/* -------- Download buttons -------- */

.download-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  align-items: stretch;
  margin: 0 0 40px;
  max-width: 460px;
}

@media (max-width: 540px) {
  .download-row {
    gap: 10px;
  }
}

.store-btn {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 2px;
  min-width: 0;
  padding: 12px 18px;
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 16px;
  text-align: left;
  transition: background 150ms ease, border-color 150ms ease;
}

@media (max-width: 540px) {
  .store-btn {
    padding: 10px 12px;
  }
  .store-btn__sub {
    font-size: 10px;
  }
  .store-btn__main {
    font-size: 15px;
  }
}

.store-btn:hover,
.store-btn:focus-visible {
  background: var(--bg-card-hover);
  text-decoration: none;
  color: var(--text-primary);
  border-color: var(--border-strong);
}

.store-btn__sub {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.store-btn__main {
  font-size: 18px;
  font-weight: 800;
}

.store-btn--soon {
  opacity: 0.65;
  cursor: not-allowed;
}

.store-btn--soon:hover,
.store-btn--soon:focus-visible {
  background: var(--bg-card);
  border-color: var(--border);
}

/* -------- Features section ("Control on every message") -------- */

.features {
  padding: 64px 0 88px;
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
}

.section-title {
  font-size: clamp(26px, 3.8vw, 36px);
  font-weight: 800;
  letter-spacing: -0.015em;
  margin: 0 0 10px;
  text-align: center;
}

.section-lede {
  margin: 0 auto 36px;
  max-width: 560px;
  color: var(--text-secondary);
  font-size: 15px;
  text-align: center;
  line-height: 1.55;
}

.features__note {
  margin: 36px auto 0;
  max-width: 640px;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.7;
  text-align: justify;
  text-justify: inter-word;
  hyphens: auto;
}

.features__note strong {
  color: var(--text-primary);
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

@media (max-width: 900px) {
  .features__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    gap: 10px;
  }
}

@media (max-width: 600px) {
  .features {
    padding: 48px 0 64px;
  }
  .features .container {
    padding-left: 16px;
    padding-right: 16px;
  }
  .features__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    gap: 8px;
  }
}

.feature {
  background: #ffffff;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: var(--radius-md);
  padding: 14px 14px 14px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.12);
  transition: border-color 200ms ease, transform 200ms ease;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-rows: auto auto;
  column-gap: 10px;
  row-gap: 10px;
  align-items: start;
}

.feature:hover {
  border-color: rgba(0, 0, 0, 0.18);
  transform: translateY(-1px);
}

.feature__title {
  margin: 0;
  grid-column: 1;
  grid-row: 1;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.005em;
  color: #0d0d0d;
  align-self: center;
  min-width: 0;
}

.feature__body {
  margin: 0;
  grid-column: 1 / -1;
  grid-row: 2;
  font-size: 13.5px;
  line-height: 1.55;
  color: #4a4a4a;
}

/* Metric — top-right of block, same row as title, accent color */

.metric {
  grid-column: 2;
  grid-row: 1;
  justify-self: end;
  align-self: center;
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  margin: 0;
  background: #0d0d0d;
  color: #ffffff;
  border-radius: 999px;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.1px;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
}

@media (max-width: 600px) {
  .feature {
    padding: 12px;
    column-gap: 8px;
    row-gap: 8px;
  }
  .feature__title {
    font-size: 14px;
  }
  .feature__body {
    font-size: 13px;
    line-height: 1.5;
  }
  .metric {
    font-size: 13px;
  }
}

.metric__num {
  font-size: 15px;
  font-weight: 800;
}

.metric__sep {
  margin: 0 3px;
  opacity: 0.55;
}

.metric__total {
  opacity: 0.75;
}

/* Toggle switch (visual only) — sits in the metric slot */

.toggle {
  grid-column: 2;
  grid-row: 1;
  justify-self: end;
  align-self: center;
  display: inline-block;
  position: relative;
  width: 38px;
  height: 22px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: transparent;
  transition: background 200ms ease, border-color 200ms ease;
}

.toggle::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--text-secondary);
  transition: transform 200ms ease, background 200ms ease;
}

.toggle--on {
  background: transparent;
  border-color: var(--border-strong);
}

.toggle--on::after {
  transform: translateX(16px);
  background: var(--text-primary);
}

@media (max-width: 600px) {
  .toggle {
    width: 34px;
    height: 20px;
  }
  .toggle::after {
    width: 14px;
    height: 14px;
  }
  .toggle--on::after {
    transform: translateX(14px);
  }
}

/* -------- Article / long-form pages -------- */

.article {
  padding: 48px 0 72px;
  background: var(--bg-deep);
}

.article__inner {
  max-width: 760px;
  margin: 0 auto;
}

.article__draft-banner {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--text-secondary);
  padding: 12px 16px;
  border-radius: var(--radius-md);
  margin-bottom: 28px;
  font-size: 14px;
  line-height: 1.5;
}

.article h1 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  letter-spacing: -0.015em;
  margin: 0 0 8px;
}

.article__meta {
  color: var(--text-muted);
  font-size: 13px;
  margin: 0 0 32px;
}

.article h2 {
  font-size: 20px;
  font-weight: 800;
  margin: 36px 0 12px;
  color: var(--text-primary);
}

.article h3 {
  font-size: 16px;
  font-weight: 700;
  margin: 24px 0 8px;
  color: var(--text-primary);
}

.article p,
.article li {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.7;
}

.article p {
  margin: 0 0 14px;
}

.article ul,
.article ol {
  padding-left: 22px;
  margin: 0 0 14px;
}

.article li {
  margin-bottom: 6px;
}

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

.article code,
.article pre {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 13px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1px 6px;
  color: var(--text-primary);
}

.article pre {
  display: block;
  padding: 12px 14px;
  overflow-x: auto;
  white-space: pre;
  line-height: 1.5;
}

.contact-card {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  margin: 20px 0;
  text-decoration: none;
  color: var(--text-primary);
  transition: background 150ms ease, border-color 150ms ease;
}

.contact-card:hover,
.contact-card:focus-visible {
  background: var(--bg-card-hover);
  border-color: var(--border-strong);
  text-decoration: none;
  color: var(--text-primary);
}

.contact-card__label {
  display: block;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text-muted);
  margin-bottom: 4px;
  font-weight: 600;
}

.contact-card__value {
  font-size: 17px;
  font-weight: 700;
  color: var(--accent);
}

/* -------- 404 -------- */

.notfound {
  padding: 96px 0;
  text-align: center;
}

.notfound h1 {
  font-size: 72px;
  letter-spacing: -0.04em;
  margin: 0 0 8px;
}

.notfound p {
  color: var(--text-secondary);
  margin: 0 0 28px;
  font-size: 16px;
}

.notfound a {
  display: inline-block;
  padding: 12px 22px;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 800;
  border-radius: var(--radius-md);
  text-decoration: none;
}

.notfound a:hover,
.notfound a:focus-visible {
  background: var(--accent-hover);
  text-decoration: none;
}

/* -------- Footer -------- */

.site-footer {
  background: transparent;
  border-top: 1px solid var(--border);
  padding: 22px 0 28px;
  margin-top: auto;
}

.site-footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.site-footer__copy {
  margin: 0;
  color: var(--text-muted);
  font-size: 13px;
}

.site-footer__nav {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.site-footer__nav a {
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
}

.site-footer__nav a:hover,
.site-footer__nav a:focus-visible {
  color: var(--text-primary);
}