/* ==========================================================================
   Northbound - conversion-focused editorial blog system
   Demo build for Freelancer project 40739401
   Everything here is self-hosted. Zero external requests.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Fonts (self-hosted, variable, woff2)
   -------------------------------------------------------------------------- */

@font-face {
  font-family: 'Fraunces';
  font-style: normal;
  font-weight: 300 900;
  font-display: swap;
  src: url('../fonts/fraunces-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
    U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193,
    U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: 'Fraunces';
  font-style: normal;
  font-weight: 300 900;
  font-display: swap;
  src: url('../fonts/fraunces-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF,
    U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020,
    U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

@font-face {
  font-family: 'Instrument Sans';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url('../fonts/instrumentsans-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
    U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193,
    U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: 'Instrument Sans';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url('../fonts/instrumentsans-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF,
    U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020,
    U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* --------------------------------------------------------------------------
   2. Tokens
   -------------------------------------------------------------------------- */

:root {
  /* Paper and ink */
  --paper: #f7f3ec;
  --paper-sunk: #efe9de;
  --paper-card: #fffdf9;
  --ink: #14110f;
  --ink-soft: #383029;
  --ink-mute: #635a50;
  --rule: #ddd5c6;
  --rule-strong: #c6bcab;

  /* Signal */
  --signal: #d43a1f;
  --signal-deep: #b32e15;
  --signal-tint: #fae7e0;

  /* Typefaces */
  --font-display: 'Fraunces', Georgia, 'Times New Roman', serif;
  --font-body: 'Instrument Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif;

  /* Rhythm */
  --gutter: clamp(1.25rem, 5vw, 4.5rem);
  --shell: 1280px;
  --measure: 34rem;
  --section-gap: clamp(4.5rem, 10vw, 9rem);

  /* Motion */
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --ease-out-back: cubic-bezier(0.34, 1.32, 0.64, 1);
  --dur: 0.45s;

  /* Radii and shadow */
  --r-sm: 3px;
  --r-md: 6px;
  --shadow-lift: 0 1px 1px rgba(20, 17, 15, 0.04),
    0 8px 24px -12px rgba(20, 17, 15, 0.18);
}

/* --------------------------------------------------------------------------
   3. Reset and base
   -------------------------------------------------------------------------- */

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

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

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink-soft);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.68;
  font-feature-settings: 'kern' 1, 'liga' 1;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Paper grain. Sits above the background, under the content. */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.4;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)' opacity='0.09'/%3E%3C/svg%3E");
}

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

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  color: var(--ink);
  font-weight: 400;
  letter-spacing: -0.021em;
  line-height: 1.05;
  margin: 0;
  text-wrap: balance;
}

p {
  margin: 0 0 1.15em;
}

a {
  color: inherit;
}

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

::selection {
  background: var(--signal);
  color: #fff;
}

:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
  border-radius: 2px;
}

/* --------------------------------------------------------------------------
   4. Layout primitives
   -------------------------------------------------------------------------- */

.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
  position: relative;
  z-index: 1;
}

/* Sized so the article body column lands on 38rem, its ideal measure,
   once the 18rem sticky rail and the gap are subtracted. */
.shell--narrow {
  max-width: 68rem;
}

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

.section--tight {
  padding-block: clamp(3rem, 6vw, 5rem);
}

.rule {
  height: 1px;
  background: var(--rule);
  border: 0;
  margin: 0;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--ink);
  color: var(--paper);
  padding: 0.75rem 1.25rem;
}

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

/* --------------------------------------------------------------------------
   5. Typography helpers
   -------------------------------------------------------------------------- */

.eyebrow {
  font-family: var(--font-body);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin: 0 0 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.eyebrow::before {
  content: '';
  width: 1.75rem;
  height: 1px;
  background: var(--signal);
  flex: none;
}

.eyebrow--plain::before {
  display: none;
}

.display {
  font-size: clamp(2.4rem, 5.1vw, 4.4rem);
  font-variation-settings: 'opsz' 96, 'SOFT' 0, 'WONK' 1;
  letter-spacing: -0.031em;
  line-height: 1.02;
}

.h-xl {
  font-size: clamp(2.25rem, 4.6vw, 3.6rem);
  font-variation-settings: 'opsz' 72;
  letter-spacing: -0.028em;
}

.h-lg {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-variation-settings: 'opsz' 40;
  letter-spacing: -0.024em;
}

.h-md {
  font-size: clamp(1.3rem, 1.9vw, 1.6rem);
  font-variation-settings: 'opsz' 24;
  line-height: 1.18;
  letter-spacing: -0.017em;
}

.lede {
  font-size: clamp(1.1rem, 1.5vw, 1.3rem);
  line-height: 1.6;
  color: var(--ink-soft);
  max-width: var(--measure);
}

.muted {
  color: var(--ink-mute);
}

.meta {
  font-size: 0.8125rem;
  letter-spacing: 0.02em;
  color: var(--ink-mute);
}

.signal-text {
  color: var(--signal-deep);
}

/* Underline that draws on hover */
.ulink {
  text-decoration: none;
  background-image: linear-gradient(var(--signal), var(--signal));
  background-size: 0% 1px;
  background-repeat: no-repeat;
  background-position: 0 100%;
  transition: background-size var(--dur) var(--ease), color 0.2s var(--ease);
}

.ulink:hover,
.ulink:focus-visible {
  background-size: 100% 1px;
  color: var(--ink);
}

/* --------------------------------------------------------------------------
   6. Buttons
   -------------------------------------------------------------------------- */

.btn {
  --btn-bg: var(--signal-deep);
  --btn-fg: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.95rem 1.6rem;
  background: var(--btn-bg);
  color: var(--btn-fg);
  border: 1px solid var(--btn-bg);
  border-radius: var(--r-sm);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.005em;
  text-decoration: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: transform 0.28s var(--ease), box-shadow 0.28s var(--ease),
    background-color 0.28s var(--ease);
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: #fff;
  opacity: 0;
  transition: opacity 0.28s var(--ease);
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 10px 22px -12px rgba(179, 46, 21, 0.65);
}

.btn:hover::after,
.btn:focus-visible::after {
  opacity: 0.09;
}

.btn:active {
  transform: translateY(0);
}

.btn__arrow {
  transition: transform 0.28s var(--ease);
}

.btn:hover .btn__arrow {
  transform: translateX(3px);
}

.btn--ghost {
  --btn-bg: transparent;
  --btn-fg: var(--ink);
  border-color: var(--rule-strong);
}

.btn--ghost:hover,
.btn--ghost:focus-visible {
  border-color: var(--ink);
  box-shadow: none;
}

.btn--ink {
  --btn-bg: var(--ink);
  --btn-fg: var(--paper);
}

.btn--ink:hover,
.btn--ink:focus-visible {
  box-shadow: 0 10px 22px -12px rgba(20, 17, 15, 0.7);
}

.btn--wide {
  width: 100%;
}

.btn--sm {
  padding: 0.6rem 1.05rem;
  font-size: 0.8125rem;
}

/* --------------------------------------------------------------------------
   7. Demo strip
   -------------------------------------------------------------------------- */

.demo-strip {
  background: var(--ink);
  color: #efe9de;
  font-size: 0.78125rem;
  letter-spacing: 0.015em;
  position: relative;
  z-index: 3;
}

.demo-strip__in {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding-block: 0.6rem;
  flex-wrap: wrap;
}

.demo-strip__tag {
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.17em;
  text-transform: uppercase;
  background: var(--signal);
  color: #fff;
  padding: 0.2rem 0.5rem;
  border-radius: 2px;
  flex: none;
}

.demo-strip__close {
  margin-left: auto;
  background: none;
  border: 1px solid rgba(239, 233, 222, 0.28);
  color: inherit;
  border-radius: 2px;
  padding: 0.15rem 0.5rem;
  font-size: 0.7rem;
  cursor: pointer;
  flex: none;
}

.demo-strip__close:hover {
  border-color: rgba(239, 233, 222, 0.7);
}

/* --------------------------------------------------------------------------
   8. Header
   -------------------------------------------------------------------------- */

.site-head {
  position: sticky;
  top: 0;
  z-index: 40;
  background: color-mix(in srgb, var(--paper) 96%, transparent);
  backdrop-filter: saturate(1.3) blur(14px);
  -webkit-backdrop-filter: saturate(1.3) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease), background-color 0.3s var(--ease);
}

.site-head.is-stuck {
  border-bottom-color: var(--rule);
}

.site-head__in {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  min-height: 4.5rem;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 0.55rem;
  text-decoration: none;
  flex: none;
}

.brand__mark {
  font-family: var(--font-display);
  font-size: 1.32rem;
  font-weight: 600;
  font-variation-settings: 'opsz' 20, 'WONK' 1;
  letter-spacing: -0.028em;
  color: var(--ink);
}

.brand__dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--signal);
  align-self: center;
  flex: none;
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.9rem;
  margin-left: auto;
}

.nav a {
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--ink-soft);
  position: relative;
  padding-block: 0.35rem;
}

.nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  height: 1px;
  width: 0;
  background: var(--signal);
  transition: width 0.32s var(--ease);
}

.nav a:hover::after,
.nav a:focus-visible::after,
.nav a[aria-current='page']::after {
  width: 100%;
}

.nav a[aria-current='page'] {
  color: var(--ink);
}

.head-cta {
  flex: none;
}

/* The nav carries its own CTA for the mobile drawer only. On desktop the
   standalone .head-cta is the single call to action in the header. */
@media (min-width: 861px) {
  .nav .btn {
    display: none;
  }
}

.nav-toggle {
  display: none;
  margin-left: auto;
  background: none;
  border: 1px solid var(--rule-strong);
  border-radius: var(--r-sm);
  padding: 0.5rem 0.7rem;
  cursor: pointer;
  line-height: 0;
}

.nav-toggle svg {
  width: 20px;
  height: 14px;
}

.nav-toggle rect {
  fill: var(--ink);
  transition: transform 0.3s var(--ease), opacity 0.2s var(--ease);
  transform-origin: center;
}

.nav-toggle[aria-expanded='true'] rect:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle[aria-expanded='true'] rect:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded='true'] rect:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

@media (max-width: 860px) {
  .nav-toggle {
    display: inline-flex;
  }

  .nav {
    position: fixed;
    inset: 0 0 auto;
    top: var(--head-offset, 4.5rem);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--rule);
    padding: 0.5rem var(--gutter) 1.5rem;
    margin-left: 0;
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.26s var(--ease), transform 0.26s var(--ease),
      visibility 0.26s;
  }

  .nav.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .nav a {
    padding-block: 0.95rem;
    border-bottom: 1px solid var(--rule);
    font-size: 1.05rem;
  }

  .nav a::after {
    display: none;
  }

  .nav .btn {
    margin-top: 1.1rem;
  }

  .head-cta {
    display: none;
  }
}

/* --------------------------------------------------------------------------
   9. Hero
   -------------------------------------------------------------------------- */

.hero {
  padding-top: clamp(2.25rem, 4.4vw, 3.5rem);
  padding-bottom: clamp(2.75rem, 5vw, 4.25rem);
  position: relative;
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: end;
}

@media (max-width: 900px) {
  .hero__grid {
    grid-template-columns: 1fr;
    align-items: start;
  }
}

.hero__title .hl {
  position: relative;
  white-space: nowrap;
}

.hero__title .hl::after {
  content: '';
  position: absolute;
  left: -0.06em;
  right: -0.06em;
  bottom: 0.28em;
  height: 0.27em;
  background: var(--signal-tint);
  z-index: -1;
  transform: scaleX(0);
  transform-origin: left;
  animation: draw-hl 0.9s var(--ease) 0.75s forwards;
}

@keyframes draw-hl {
  to {
    transform: scaleX(1);
  }
}

.hero__aside {
  border-left: 1px solid var(--rule);
  padding-left: clamp(1.25rem, 2.5vw, 2rem);
}

@media (max-width: 900px) {
  .hero__aside {
    border-left: 0;
    border-top: 1px solid var(--rule);
    padding-left: 0;
    padding-top: 1.75rem;
  }
}

.hero__stat {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 4.5vw, 3.6rem);
  font-variation-settings: 'opsz' 60, 'WONK' 1;
  color: var(--ink);
  line-height: 1;
  letter-spacing: -0.035em;
  display: block;
}

.hero__stat-label {
  font-size: 0.875rem;
  color: var(--ink-mute);
  margin-top: 0.5rem;
  max-width: 22rem;
}

.hero__stat-wrap + .hero__stat-wrap {
  margin-top: 1.75rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--rule);
}

/* --------------------------------------------------------------------------
   10. Inline capture form (the hero conversion device)
   -------------------------------------------------------------------------- */

.capture {
  margin-top: clamp(1.5rem, 2.6vw, 2.1rem);
  max-width: 34rem;
}

.capture__row {
  display: flex;
  gap: 0.6rem;
  align-items: stretch;
}

@media (max-width: 520px) {
  .capture__row {
    flex-direction: column;
  }
}

.capture__field {
  flex: 1 1 auto;
  min-width: 0;
  position: relative;
}

.capture__input {
  width: 100%;
  padding: 0.95rem 1rem;
  background: var(--paper-card);
  border: 1px solid var(--rule-strong);
  border-radius: var(--r-sm);
  font-size: 0.9375rem;
  transition: border-color 0.24s var(--ease), box-shadow 0.24s var(--ease);
}

.capture__input::placeholder {
  color: #8e8478;
}

.capture__input:hover {
  border-color: #aa9f8d;
}

.capture__input:focus {
  outline: none;
  border-color: var(--signal);
  box-shadow: 0 0 0 3px var(--signal-tint);
}

.capture__input[aria-invalid='true'] {
  border-color: var(--signal-deep);
}

.capture__note {
  font-size: 0.78125rem;
  color: var(--ink-mute);
  margin-top: 0.8rem;
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.capture__note svg {
  width: 13px;
  height: 13px;
  flex: none;
  color: var(--ink-mute);
}

.capture__error {
  font-size: 0.8125rem;
  color: var(--signal-deep);
  margin-top: 0.55rem;
  font-weight: 500;
}

.capture__error:empty {
  display: none;
}

/* Success state swaps in place of the form */
.capture__done {
  border: 1px solid var(--rule-strong);
  border-left: 3px solid var(--signal);
  background: var(--paper-card);
  border-radius: var(--r-sm);
  padding: 1.15rem 1.25rem;
  animation: pop-in 0.45s var(--ease-out-back);
}

.capture__done strong {
  color: var(--ink);
  font-weight: 600;
}

.capture__done p {
  margin: 0.35rem 0 0;
  font-size: 0.875rem;
  color: var(--ink-mute);
}

@keyframes pop-in {
  from {
    opacity: 0;
    transform: translateY(8px) scale(0.985);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

[hidden] {
  display: none !important;
}

/* --------------------------------------------------------------------------
   11. Credibility strip
   -------------------------------------------------------------------------- */

.trust {
  border-block: 1px solid var(--rule);
  padding-block: 1.6rem;
}

.trust__in {
  display: flex;
  align-items: center;
  gap: clamp(1.5rem, 4vw, 3.5rem);
  flex-wrap: wrap;
}

.trust__label {
  font-size: 0.6875rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-mute);
  font-weight: 600;
  flex: none;
}

.trust__logos {
  display: flex;
  align-items: center;
  gap: clamp(1.5rem, 3.5vw, 3rem);
  flex-wrap: wrap;
}

.trust__logo {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  font-variation-settings: 'opsz' 18;
  letter-spacing: -0.015em;
  color: var(--ink-mute);
  opacity: 0.75;
  transition: opacity 0.3s var(--ease), color 0.3s var(--ease);
}

.trust__logo:hover {
  opacity: 1;
  color: var(--ink);
}

/* --------------------------------------------------------------------------
   12. Featured article
   -------------------------------------------------------------------------- */

.feature {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: clamp(1.75rem, 4vw, 4rem);
  align-items: center;
  text-decoration: none;
  color: inherit;
}

@media (max-width: 860px) {
  .feature {
    grid-template-columns: 1fr;
  }
}

.feature__media {
  position: relative;
  aspect-ratio: 4 / 3;
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--paper-sunk);
}

.feature__media .ph {
  transition: transform 0.7s var(--ease);
}

.feature:hover .feature__media .ph {
  transform: scale(1.03);
}

.feature__badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: var(--signal);
  color: #fff;
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 0.35rem 0.65rem;
  border-radius: 2px;
}

.feature__title {
  margin-bottom: 0.9rem;
}

.feature__title span {
  background-image: linear-gradient(var(--ink), var(--ink));
  background-size: 0% 1px;
  background-repeat: no-repeat;
  background-position: 0 100%;
  transition: background-size 0.5s var(--ease);
}

.feature:hover .feature__title span {
  background-size: 100% 1px;
}

/* --------------------------------------------------------------------------
   13. Article index (the numbered editorial list)
   -------------------------------------------------------------------------- */

.index-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 2.75rem;
  flex-wrap: wrap;
}

.post-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--rule);
}

.post {
  border-bottom: 1px solid var(--rule);
}

.post__link {
  display: grid;
  grid-template-columns: 4.5rem minmax(0, 1fr) 11rem;
  gap: clamp(1rem, 3vw, 2.5rem);
  align-items: baseline;
  padding-block: clamp(1.6rem, 2.6vw, 2.2rem);
  text-decoration: none;
  color: inherit;
  transition: background-color 0.35s var(--ease), padding-inline 0.35s var(--ease);
}

.post__link:hover,
.post__link:focus-visible {
  background: color-mix(in srgb, var(--paper-sunk) 55%, transparent);
  padding-inline: 1rem;
}

@media (max-width: 760px) {
  .post__link {
    grid-template-columns: 2.6rem minmax(0, 1fr);
    align-items: start;
  }
}

.post__num {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.6vw, 2.15rem);
  font-variation-settings: 'opsz' 30, 'WONK' 1;
  color: var(--rule-strong);
  line-height: 1;
  letter-spacing: -0.02em;
  transition: color 0.35s var(--ease);
}

.post__link:hover .post__num {
  color: var(--signal);
}

.post__title {
  margin-bottom: 0.5rem;
}

.post__dek {
  font-size: 0.9375rem;
  color: var(--ink-mute);
  margin: 0;
  max-width: 40rem;
}

.post__side {
  text-align: right;
  font-size: 0.8125rem;
  color: var(--ink-mute);
}

@media (max-width: 760px) {
  .post__side {
    grid-column: 2;
    text-align: left;
    margin-top: 0.75rem;
  }
}

.post__topic {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--signal-deep);
  margin-bottom: 0.3rem;
}

/* --------------------------------------------------------------------------
   14. Placeholder art (no image files, pure CSS/SVG)
   -------------------------------------------------------------------------- */

.ph {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background:
    repeating-linear-gradient(
      -45deg,
      transparent 0 11px,
      rgba(20, 17, 15, 0.035) 11px 12px
    ),
    linear-gradient(145deg, #e9e2d5 0%, #dfd6c6 55%, #e6ded0 100%);
}

.ph__tag {
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #8a8073;
  border: 1px solid #c8bdab;
  border-radius: 2px;
  padding: 0.3rem 0.6rem;
  background: rgba(255, 253, 249, 0.7);
}

.ph--signal {
  background:
    repeating-linear-gradient(
      -45deg,
      transparent 0 11px,
      rgba(20, 17, 15, 0.05) 11px 12px
    ),
    linear-gradient(145deg, #f0c9bd 0%, #e5a894 60%, #eec0b2 100%);
}

.ph--ink {
  background:
    repeating-linear-gradient(
      -45deg,
      transparent 0 11px,
      rgba(255, 255, 255, 0.04) 11px 12px
    ),
    linear-gradient(145deg, #2b2621 0%, #191512 60%, #241f1a 100%);
}

.ph--ink .ph__tag {
  color: #b5aa9c;
  border-color: #4a4239;
  background: rgba(20, 17, 15, 0.5);
}

/* --------------------------------------------------------------------------
   15. Topic rail
   -------------------------------------------------------------------------- */

.rail {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  border-radius: var(--r-md);
  overflow: hidden;
}

.rail__card {
  background: var(--paper);
  padding: clamp(1.5rem, 2.6vw, 2.25rem);
  text-decoration: none;
  color: inherit;
  position: relative;
  transition: background-color 0.35s var(--ease);
}

.rail__card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--signal);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.4s var(--ease);
}

.rail__card:hover,
.rail__card:focus-visible {
  background: var(--paper-card);
}

.rail__card:hover::before,
.rail__card:focus-visible::before {
  transform: scaleY(1);
}

.rail__count {
  font-size: 0.75rem;
  color: var(--ink-mute);
  margin-top: 0.75rem;
  display: block;
}

/* --------------------------------------------------------------------------
   16. CTA blocks (the reusable conversion units)
   -------------------------------------------------------------------------- */

.cta-ink {
  background: var(--ink);
  color: #e6ded1;
  border-radius: var(--r-md);
  padding: clamp(2.25rem, 5vw, 4.25rem);
  position: relative;
  overflow: hidden;
}

.cta-ink::after {
  content: '';
  position: absolute;
  right: -14%;
  top: -55%;
  width: 46rem;
  height: 46rem;
  border-radius: 50%;
  background: radial-gradient(
    circle at center,
    rgba(212, 58, 31, 0.3) 0%,
    rgba(212, 58, 31, 0) 62%
  );
  pointer-events: none;
}

.cta-ink__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: clamp(2rem, 4vw, 4rem);
  align-items: center;
  position: relative;
  z-index: 1;
}

@media (max-width: 860px) {
  .cta-ink__grid {
    grid-template-columns: 1fr;
  }
}

.cta-ink h2,
.cta-ink h3 {
  color: #fdfaf5;
}

.cta-ink .eyebrow {
  color: #a79c8d;
}

.cta-ink .capture__input {
  background: #221d19;
  border-color: #3d352d;
  color: #f4efe6;
}

.cta-ink .capture__input::placeholder {
  color: #8b8073;
}

.cta-ink .capture__input:focus {
  border-color: var(--signal);
  box-shadow: 0 0 0 3px rgba(212, 58, 31, 0.24);
}

.cta-ink .capture__note,
.cta-ink .capture__note svg {
  color: #9a8f81;
}

.cta-ink .btn {
  --btn-bg: var(--signal);
  --btn-fg: #fff;
}

.cta-ink .capture__done {
  background: #221d19;
  border-color: #3d352d;
  border-left-color: var(--signal);
}

.cta-ink .capture__done strong {
  color: #fdfaf5;
}

.cta-ink .capture__done p {
  color: #9a8f81;
}

.cta-ink__list {
  list-style: none;
  margin: 1.75rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.cta-ink__list li {
  display: flex;
  gap: 0.7rem;
  align-items: flex-start;
  font-size: 0.9375rem;
  color: #c2b8a9;
}

.cta-ink__list svg {
  width: 15px;
  height: 15px;
  flex: none;
  margin-top: 0.28rem;
  color: var(--signal);
}

/* Inline mid-article CTA */
.cta-inline {
  border: 1px solid var(--rule-strong);
  border-left: 3px solid var(--signal);
  border-radius: var(--r-sm);
  background: var(--paper-card);
  padding: clamp(1.5rem, 3vw, 2.1rem);
  margin-block: clamp(2.5rem, 5vw, 3.5rem);
  box-shadow: var(--shadow-lift);
}

.cta-inline h3 {
  margin-bottom: 0.6rem;
}

.cta-inline p {
  font-size: 0.9375rem;
  color: var(--ink-mute);
}

/* --------------------------------------------------------------------------
   17. Article page
   -------------------------------------------------------------------------- */

.progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 100%;
  background: transparent;
  z-index: 60;
  pointer-events: none;
}

.progress__bar {
  height: 100%;
  width: 0;
  background: var(--signal);
  transform-origin: left;
}

.article-head {
  padding-top: clamp(2.5rem, 5vw, 4.5rem);
  padding-bottom: clamp(1.5rem, 3vw, 2.5rem);
}

.crumbs {
  font-size: 0.78125rem;
  color: var(--ink-mute);
  margin-bottom: 1.75rem;
}

.crumbs a {
  text-decoration: none;
}

.crumbs a:hover {
  color: var(--ink);
}

.crumbs span {
  margin-inline: 0.45rem;
  color: var(--rule-strong);
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex-wrap: wrap;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
  font-size: 0.8125rem;
  color: var(--ink-mute);
}

.avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(140deg, #d8cdbb, #b9ab95);
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 600;
  color: #4a4136;
  flex: none;
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 18rem;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}

@media (max-width: 1000px) {
  .article-layout {
    grid-template-columns: 1fr;
  }
}

.article-body {
  max-width: 38rem;
  font-size: 1.125rem;
  line-height: 1.75;
}

.article-body > h2 {
  font-size: clamp(1.6rem, 2.4vw, 2.05rem);
  font-variation-settings: 'opsz' 32;
  margin-top: 2.75rem;
  margin-bottom: 1rem;
  scroll-margin-top: 6rem;
}

.article-body > h3 {
  font-size: 1.3rem;
  font-variation-settings: 'opsz' 24;
  margin-top: 2rem;
  margin-bottom: 0.7rem;
  scroll-margin-top: 6rem;
}

.article-body a:not(.btn) {
  color: var(--signal-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  text-decoration-color: rgba(179, 46, 21, 0.4);
  transition: text-decoration-color 0.25s var(--ease);
}

.article-body a:not(.btn):hover {
  text-decoration-color: var(--signal-deep);
}

.article-body ul,
.article-body ol {
  padding-left: 1.2rem;
  margin: 0 0 1.4rem;
}

.article-body li {
  margin-bottom: 0.55rem;
}

.article-body li::marker {
  color: var(--signal);
}

.drop::first-letter {
  font-family: var(--font-display);
  font-size: 3.9em;
  font-variation-settings: 'opsz' 144, 'WONK' 1;
  line-height: 0.78;
  float: left;
  margin: 0.06em 0.1em 0 0;
  color: var(--ink);
}

.pullquote {
  margin: clamp(2.25rem, 4vw, 3rem) 0;
  padding-left: clamp(1.25rem, 2.5vw, 1.75rem);
  border-left: 2px solid var(--signal);
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.1vw, 1.7rem);
  font-variation-settings: 'opsz' 36, 'WONK' 1;
  line-height: 1.32;
  letter-spacing: -0.018em;
  color: var(--ink);
}

.pullquote p {
  margin: 0;
}

.pullquote cite {
  display: block;
  margin-top: 0.85rem;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-style: normal;
  letter-spacing: 0.02em;
  color: var(--ink-mute);
}

.figure {
  margin: clamp(2rem, 4vw, 2.75rem) 0;
}

.figure__frame {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: var(--r-md);
  overflow: hidden;
}

.figure figcaption {
  font-size: 0.8125rem;
  color: var(--ink-mute);
  margin-top: 0.7rem;
  padding-left: 0.1rem;
}

/* Sticky sidebar */
.aside-sticky {
  position: sticky;
  top: 6.5rem;
  display: grid;
  gap: 1.75rem;
}

@media (max-width: 1000px) {
  .aside-sticky {
    position: static;
    top: auto;
  }
}

.side-card {
  border: 1px solid var(--rule);
  border-radius: var(--r-md);
  background: var(--paper-card);
  padding: 1.35rem;
}

.side-card h4 {
  font-size: 1.05rem;
  font-variation-settings: 'opsz' 20;
  margin-bottom: 0.5rem;
}

.side-card p {
  font-size: 0.875rem;
  color: var(--ink-mute);
}

.toc {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.875rem;
  border-left: 1px solid var(--rule);
}

.toc a {
  display: block;
  padding: 0.45rem 0 0.45rem 0.9rem;
  margin-left: -1px;
  border-left: 1px solid transparent;
  text-decoration: none;
  color: var(--ink-mute);
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.toc a:hover {
  color: var(--ink);
}

.toc a.is-active {
  color: var(--ink);
  border-left-color: var(--signal);
  font-weight: 500;
}

.author-box {
  display: flex;
  gap: 1.15rem;
  align-items: flex-start;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  padding-block: 1.75rem;
  margin-top: clamp(2.5rem, 5vw, 3.5rem);
}

.author-box .avatar {
  width: 52px;
  height: 52px;
  font-size: 1.05rem;
}

.author-box p {
  font-size: 0.9375rem;
  color: var(--ink-mute);
  margin: 0.3rem 0 0;
  max-width: 34rem;
}

/* Slide-up bar */
.slidebar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 50;
  background: var(--ink);
  color: #e6ded1;
  transform: translateY(105%);
  transition: transform 0.5s var(--ease);
  box-shadow: 0 -8px 30px -18px rgba(20, 17, 15, 0.6);
}

.slidebar.is-up {
  transform: translateY(0);
}

.slidebar__in {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding-block: 0.9rem;
  flex-wrap: wrap;
}

.slidebar__text {
  font-size: 0.9375rem;
  margin: 0;
  flex: 1 1 16rem;
  min-width: 0;
}

.slidebar__text strong {
  color: #fdfaf5;
  font-weight: 600;
}

.slidebar .btn {
  --btn-bg: var(--signal);
  --btn-fg: #fff;
  flex: none;
}

.slidebar__close {
  background: none;
  border: 1px solid rgba(230, 222, 209, 0.28);
  color: inherit;
  border-radius: 2px;
  width: 28px;
  height: 28px;
  cursor: pointer;
  flex: none;
  line-height: 0;
  display: grid;
  place-items: center;
}

.slidebar__close:hover {
  border-color: rgba(230, 222, 209, 0.75);
}

@media (max-width: 620px) {
  .slidebar__text {
    flex-basis: 100%;
    font-size: 0.875rem;
  }
}

/* --------------------------------------------------------------------------
   18. Landing page variant
   -------------------------------------------------------------------------- */

.lp-hero {
  padding-top: clamp(2.5rem, 6vw, 5rem);
  padding-bottom: clamp(2.5rem, 5vw, 4rem);
}

.lp-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}

@media (max-width: 940px) {
  .lp-hero__grid {
    grid-template-columns: 1fr;
  }
}

.lp-form {
  border: 1px solid var(--rule-strong);
  border-radius: var(--r-md);
  background: var(--paper-card);
  padding: clamp(1.5rem, 3vw, 2.15rem);
  box-shadow: var(--shadow-lift);
  position: relative;
}

.lp-form::before {
  content: '';
  position: absolute;
  inset: -1px -1px auto;
  height: 3px;
  background: linear-gradient(90deg, var(--signal), #e8845f);
  border-radius: var(--r-md) var(--r-md) 0 0;
}

.lp-form .field {
  margin-bottom: 0.9rem;
}

.field label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 0.4rem;
}

.field select {
  width: 100%;
  padding: 0.95rem 1rem;
  background: var(--paper-card);
  border: 1px solid var(--rule-strong);
  border-radius: var(--r-sm);
  font-size: 0.9375rem;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%23635a50' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 12px 8px;
  padding-right: 2.5rem;
}

.field select:focus {
  outline: none;
  border-color: var(--signal);
  box-shadow: 0 0 0 3px var(--signal-tint);
}

.lp-proof {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr));
  gap: 1px;
  background: var(--rule);
  border-block: 1px solid var(--rule);
}

.lp-proof__cell {
  background: var(--paper);
  padding: clamp(1.5rem, 3vw, 2.25rem) clamp(1.25rem, 2.5vw, 1.75rem);
}

.lp-proof__num {
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 3.4vw, 2.9rem);
  font-variation-settings: 'opsz' 48, 'WONK' 1;
  color: var(--ink);
  line-height: 1;
  letter-spacing: -0.035em;
  display: block;
  margin-bottom: 0.55rem;
}

.lp-proof__cell p {
  font-size: 0.875rem;
  color: var(--ink-mute);
  margin: 0;
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: clamp(1.75rem, 3.5vw, 3rem);
}

.value {
  border-top: 2px solid var(--ink);
  padding-top: 1.25rem;
}

.value h3 {
  font-size: 1.22rem;
  font-variation-settings: 'opsz' 22;
  margin-bottom: 0.55rem;
}

.value p {
  font-size: 0.9375rem;
  color: var(--ink-mute);
  margin: 0;
}

.value__i {
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--signal-deep);
  letter-spacing: 0.06em;
  display: block;
  margin-bottom: 0.65rem;
}

/* Accordion FAQ */
.faq {
  border-top: 1px solid var(--rule);
}

.faq details {
  border-bottom: 1px solid var(--rule);
}

.faq summary {
  list-style: none;
  cursor: pointer;
  padding-block: 1.35rem;
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 1.6vw, 1.28rem);
  font-variation-settings: 'opsz' 22;
  color: var(--ink);
  letter-spacing: -0.015em;
  line-height: 1.3;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1.5rem;
  transition: color 0.25s var(--ease);
}

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

.faq summary:hover {
  color: var(--signal-deep);
}

.faq summary::after {
  content: '';
  flex: none;
  width: 13px;
  height: 13px;
  margin-top: 0.42rem;
  background: currentColor;
  transition: transform 0.35s var(--ease);
  clip-path: polygon(
    46% 0,
    54% 0,
    54% 46%,
    100% 46%,
    100% 54%,
    54% 54%,
    54% 100%,
    46% 100%,
    46% 54%,
    0 54%,
    0 46%,
    46% 46%
  );
}

.faq details[open] summary::after {
  transform: rotate(135deg);
}

.faq details p {
  font-size: 0.9375rem;
  color: var(--ink-mute);
  max-width: 44rem;
  margin: 0 0 1.35rem;
}

/* --------------------------------------------------------------------------
   19. Footer
   -------------------------------------------------------------------------- */

.site-foot {
  background: var(--ink);
  color: #a79c8d;
  padding-block: clamp(3rem, 6vw, 4.5rem) 2rem;
  position: relative;
  z-index: 1;
}

.foot__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) repeat(3, minmax(0, 1fr));
  gap: clamp(2rem, 4vw, 3.5rem);
}

@media (max-width: 860px) {
  .foot__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .foot__brand {
    grid-column: 1 / -1;
  }
}

.foot__brand .brand__mark {
  color: #fdfaf5;
  font-size: 1.45rem;
}

.foot__brand p {
  font-size: 0.9375rem;
  max-width: 24rem;
  margin-top: 0.9rem;
}

.foot h5 {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #6f6558;
  margin: 0 0 1rem;
  font-family: var(--font-body);
}

.foot ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

.foot a {
  font-size: 0.9375rem;
  text-decoration: none;
  color: #a79c8d;
  transition: color 0.25s var(--ease);
}

.foot a:hover {
  color: #fdfaf5;
}

.foot__base {
  margin-top: clamp(2.5rem, 5vw, 3.5rem);
  padding-top: 1.5rem;
  border-top: 1px solid #2b2620;
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
  font-size: 0.8125rem;
  color: #6f6558;
}

/* --------------------------------------------------------------------------
   20. Reveal on scroll
   -------------------------------------------------------------------------- */

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.75s var(--ease), transform 0.75s var(--ease);
  will-change: opacity, transform;
}

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

/* Hero load-in, staggered */
.rise {
  opacity: 0;
  transform: translateY(16px);
  animation: rise 0.8s var(--ease) forwards;
}

.rise-1 { animation-delay: 0.05s; }
.rise-2 { animation-delay: 0.16s; }
.rise-3 { animation-delay: 0.27s; }
.rise-4 { animation-delay: 0.38s; }
.rise-5 { animation-delay: 0.49s; }

@keyframes rise {
  to {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-delay: 0ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

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

  .hero__title .hl::after {
    transform: scaleX(1);
  }
}

/* --------------------------------------------------------------------------
   21. Utilities
   -------------------------------------------------------------------------- */

.stack-sm > * + * { margin-top: 0.75rem; }
.stack-md > * + * { margin-top: 1.5rem; }
.stack-lg > * + * { margin-top: 2.5rem; }

.flex-row {
  display: flex;
  gap: 0.85rem;
  flex-wrap: wrap;
  align-items: center;
}

.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mt-2 { margin-top: 1.25rem; }
.mt-3 { margin-top: 2rem; }

.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;
}