/* =========================================================
   DABBIES — WHY IT MATTERS
   MONOGRAPH / EDITORIAL SYSTEM
========================================================= */

:root {
  --black: #080808;
  --black-soft: #0e0e0e;
  --white: #f3f3ef;
  --muted: #858580;
  --soft: #b6b6b0;
  --line: rgba(243, 243, 239, 0.14);
  --line-strong: rgba(243, 243, 239, 0.28);

  --max-width: 1440px;
}


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


html {
  scroll-behavior: smooth;
}


body {
  background: var(--black);
  color: var(--white);

  font-family:
    Inter,
    Helvetica Neue,
    Helvetica,
    Arial,
    sans-serif;

  overflow-x: hidden;
}


body.menu-open {
  overflow: hidden;
}


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


button {
  font: inherit;
}


/* =========================================================
   LOADER
========================================================= */

.page-loader {
  position: fixed;
  inset: 0;

  z-index: 9999;

  display: flex;
  align-items: center;
  justify-content: center;

  background: var(--black);

  transition:
    opacity 0.6s ease,
    visibility 0.6s ease;
}


.page-loader.loaded {
  opacity: 0;
  visibility: hidden;
}


.loader-mark {
  display: flex;
  gap: 5px;
}


.loader-mark span {
  width: 5px;
  height: 5px;

  border-radius: 50%;

  background: var(--white);

  animation:
    loaderPulse 1s infinite ease-in-out;
}


.loader-mark span:nth-child(2) {
  animation-delay: 0.15s;
}


.loader-mark span:nth-child(3) {
  animation-delay: 0.3s;
}


@keyframes loaderPulse {

  0%,
  100% {
    opacity: 0.2;
    transform: translateY(0);
  }

  50% {
    opacity: 1;
    transform: translateY(-4px);
  }

}


/* =========================================================
   HEADER
========================================================= */

.site-header {
  max-width: var(--max-width);

  margin: auto;

  padding:
    28px clamp(20px, 4vw, 64px);

  display: flex;
  align-items: center;
  justify-content: space-between;

  border-bottom: 1px solid var(--line);
}


.brand {
  display: flex;
  align-items: center;

  gap: 11px;
}


.brand-symbol {
  width: 30px;
  height: 30px;

  display: grid;
  place-items: center;

  border: 1px solid var(--line-strong);

  font-size: 12px;
  font-weight: 700;
}


.brand-name {
  font-size: 15px;
  font-weight: 600;

  letter-spacing: -0.03em;
}


.header-right {
  display: flex;
  align-items: center;

  gap: 28px;
}


.header-section {
  color: var(--muted);

  font-size: 10px;

  text-transform: uppercase;

  letter-spacing: 0.16em;
}


.menu-button {
  width: 44px;
  height: 44px;

  display: flex;
  flex-direction: column;

  align-items: center;
  justify-content: center;

  gap: 6px;

  border: 1px solid var(--line);

  background: transparent;

  cursor: pointer;
}


.menu-button span {
  width: 17px;
  height: 1px;

  background: var(--white);

  transition:
    transform 0.3s ease;
}


.menu-button.open span:first-child {
  transform:
    translateY(3.5px)
    rotate(45deg);
}


.menu-button.open span:last-child {
  transform:
    translateY(-3.5px)
    rotate(-45deg);
}


/* =========================================================
   MENU
========================================================= */

.menu-overlay {
  position: fixed;
  inset: 0;

  z-index: 5000;

  background: #0a0a0a;

  opacity: 0;
  visibility: hidden;

  transform: translateY(-10px);

  transition:
    opacity 0.35s ease,
    visibility 0.35s ease,
    transform 0.35s ease;

  overflow-y: auto;
}


.menu-overlay.open {
  opacity: 1;
  visibility: visible;

  transform: translateY(0);
}


.menu-inner {
  max-width: var(--max-width);

  min-height: 100%;

  margin: auto;

  padding:
    32px clamp(20px, 5vw, 70px);

  display: flex;
  flex-direction: column;
}


.menu-top,
.menu-bottom {
  display: flex;
  justify-content: space-between;

  color: var(--muted);

  font-size: 10px;

  text-transform: uppercase;

  letter-spacing: 0.15em;
}


.main-navigation {
  margin: auto 0;

  padding: 60px 0;
}


.main-navigation a {
  display: grid;

  grid-template-columns:
    55px
    1fr;

  align-items: baseline;

  padding: 18px 0;

  border-bottom: 1px solid var(--line);

  transition:
    padding-left 0.3s ease;
}


.main-navigation a:first-child {
  border-top: 1px solid var(--line);
}


.main-navigation a:hover,
.main-navigation a.active {
  padding-left: 15px;
}


.main-navigation a span {
  color: var(--muted);

  font-size: 10px;
}


.main-navigation a strong {
  font-size:
    clamp(30px, 5vw, 65px);

  font-weight: 400;

  letter-spacing: -0.055em;
}


/* =========================================================
   GENERAL
========================================================= */

.section-label {
  color: var(--muted);

  font-size: 9px;

  text-transform: uppercase;

  letter-spacing: 0.17em;
}


/* =========================================================
   HERO
========================================================= */

.hero {
  max-width: var(--max-width);

  min-height: 760px;

  margin: auto;

  padding:
    70px clamp(20px, 5vw, 70px)
    40px;

  display: grid;

  grid-template-columns:
    minmax(90px, 0.35fr)
    minmax(0, 2fr);

  grid-template-rows:
    1fr
    auto;
}


.hero-index {
  display: flex;
  flex-direction: column;

  gap: 7px;

  color: var(--muted);

  font-size: 9px;

  letter-spacing: 0.15em;
}


.hero-content {
  align-self: center;

  max-width: 1100px;
}


.eyebrow {
  margin-bottom: 35px;

  color: var(--muted);

  font-size: 10px;

  letter-spacing: 0.16em;
}


.hero h1 {
  max-width: 1050px;

  font-size:
    clamp(
      60px,
      9vw,
      145px
    );

  line-height: 0.87;

  font-weight: 400;

  letter-spacing: -0.078em;
}


.hero-description {
  max-width: 650px;

  margin-top: 50px;

  color: var(--soft);

  font-size:
    clamp(16px, 1.5vw, 21px);

  line-height: 1.6;
}


.hero-meta {
  grid-column: 2;

  display: flex;
  justify-content: space-between;

  color: var(--muted);

  font-size: 9px;

  letter-spacing: 0.15em;
}


/* =========================================================
   SIGNAL
========================================================= */

.signal-strip {
  overflow: hidden;

  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}


.signal-track {
  width: max-content;

  display: flex;
  align-items: center;

  gap: 28px;

  padding: 17px 0;

  color: var(--muted);

  font-size: 9px;

  text-transform: uppercase;

  letter-spacing: 0.17em;

  animation:
    signalMove 35s linear infinite;
}


.signal-track i {
  color: var(--white);

  font-style: normal;
}


@keyframes signalMove {

  from {
    transform: translateX(0);
  }

  to {
    transform: translateX(-50%);
  }

}


/* =========================================================
   OPENING
========================================================= */

.opening-section {
  max-width: var(--max-width);

  margin: auto;

  padding:
    150px clamp(20px, 5vw, 70px);

  display: grid;

  grid-template-columns:
    minmax(90px, 0.35fr)
    minmax(0, 2fr);

  border-bottom: 1px solid var(--line);
}


.section-number {
  color: var(--muted);

  font-size: 9px;

  letter-spacing: 0.15em;
}


.opening-content {
  max-width: 900px;
}


.opening-content h2 {
  margin:
    18px 0 45px;

  font-size:
    clamp(45px, 6vw, 85px);

  line-height: 0.94;

  font-weight: 400;

  letter-spacing: -0.065em;
}


.opening-content p:not(.section-label) {
  max-width: 720px;

  margin-bottom: 22px;

  color: var(--soft);

  font-size:
    clamp(16px, 1.4vw, 19px);

  line-height: 1.75;
}


/* =========================================================
   WORLD
========================================================= */

.world-section {
  max-width: var(--max-width);

  margin: auto;

  padding:
    120px clamp(20px, 5vw, 70px);

  display: grid;

  grid-template-columns:
    minmax(0, 1.2fr)
    minmax(280px, 0.8fr);

  gap: 80px;

  align-items: center;

  border-bottom: 1px solid var(--line);
}


.world-visual {
  position: relative;

  min-height: 570px;

  overflow: hidden;

  border: 1px solid var(--line);

  display: grid;

  place-items: center;
}


.world-grid,
.map-grid {
  position: absolute;
  inset: 0;

  background-image:
    linear-gradient(
      var(--line) 1px,
      transparent 1px
    ),
    linear-gradient(
      90deg,
      var(--line) 1px,
      transparent 1px
    );

  background-size:
    45px 45px;

  opacity: 0.3;
}


.world-lines {
  position: absolute;

  inset: 0;

  display: flex;

  align-items: center;
  justify-content: center;
}


.world-lines span {
  position: absolute;

  width: 75%;

  height: 75%;

  border:
    1px solid var(--line);

  border-radius: 50%;

  transform:
    rotate(35deg)
    scaleX(0.65);
}


.world-lines span:nth-child(2) {
  transform:
    rotate(-35deg)
    scaleX(0.65);
}


.world-lines span:nth-child(3) {
  width: 50%;
  height: 85%;

  transform:
    rotate(90deg)
    scaleX(0.65);
}


.world-center {
  position: relative;

  z-index: 2;

  display: flex;
  flex-direction: column;

  align-items: center;

  gap: 18px;

  text-align: center;
}


.world-center strong {
  font-size: 90px;

  line-height: 0.8;

  font-weight: 200;
}


.world-small {
  color: var(--muted);

  font-size: 9px;

  letter-spacing: 0.17em;
}


.world-coordinate {
  position: absolute;

  left: 20px;
  bottom: 20px;

  color: var(--muted);

  font-size: 8px;

  letter-spacing: 0.15em;
}


.world-copy h2 {
  margin:
    18px 0 30px;

  font-size:
    clamp(42px, 5vw, 72px);

  line-height: 0.94;

  font-weight: 400;

  letter-spacing: -0.065em;
}


.world-copy p:not(.section-label) {
  margin-bottom: 20px;

  color: var(--soft);

  font-size: 16px;

  line-height: 1.75;
}


/* =========================================================
   REASONS
========================================================= */

.reasons-section {
  max-width: var(--max-width);

  margin: auto;

  padding:
    130px clamp(20px, 5vw, 70px);

  border-bottom: 1px solid var(--line);
}


.reasons-heading {
  max-width: 800px;

  margin-bottom: 75px;
}


.reasons-heading h2 {
  margin-top: 18px;

  font-size:
    clamp(45px, 6vw, 85px);

  line-height: 0.92;

  font-weight: 400;

  letter-spacing: -0.07em;
}


.reasons-grid {
  display: grid;

  grid-template-columns:
    repeat(3, 1fr);

  gap: 1px;

  background: var(--line);
}


.reason-card {
  min-height: 410px;

  padding: 30px;

  background: var(--black);

  display: flex;
  flex-direction: column;
}


.reason-number {
  color: var(--muted);

  font-size: 9px;

  letter-spacing: 0.15em;
}


.reason-icon {
  width: 65px;
  height: 65px;

  margin:
    55px 0 30px;

  display: grid;
  place-items: center;

  border: 1px solid var(--line-strong);

  font-size: 25px;

  font-weight: 200;
}


.reason-card h3 {
  margin-top: auto;

  font-size:
    clamp(27px, 3vw, 42px);

  line-height: 0.95;

  font-weight: 400;

  letter-spacing: -0.055em;
}


.reason-card p {
  margin-top: 17px;

  color: var(--muted);

  font-size: 13px;

  line-height: 1.65;
}


/* =========================================================
   AFRICA
========================================================= */

.africa-section {
  max-width: var(--max-width);

  margin: auto;

  padding:
    130px clamp(20px, 5vw, 70px);

  display: grid;

  grid-template-columns:
    minmax(100px, 0.35fr)
    minmax(0, 1.35fr)
    minmax(250px, 0.65fr);

  gap: 55px;

  border-bottom: 1px solid var(--line);
}


.africa-header {
  display: flex;
  flex-direction: column;

  justify-content: space-between;
}


.africa-mark {
  color: var(--muted);

  font-size: 9px;

  letter-spacing: 0.12em;
}


.africa-content h2 {
  margin:
    18px 0 30px;

  font-size:
    clamp(55px, 7vw, 105px);

  line-height: 0.86;

  font-weight: 400;

  letter-spacing: -0.075em;
}


.africa-content p {
  max-width: 650px;

  margin-bottom: 20px;

  color: var(--soft);

  font-size: 17px;

  line-height: 1.7;
}


.africa-map {
  position: relative;

  min-height: 430px;

  overflow: hidden;

  border: 1px solid var(--line);
}


.map-label {
  position: absolute;

  top: 50%;
  left: 50%;

  transform:
    translate(-50%, -50%);

  font-size: 10px;

  letter-spacing: 0.18em;
}


.map-coordinate {
  position: absolute;

  bottom: 18px;
  left: 18px;

  color: var(--muted);

  font-size: 8px;

  letter-spacing: 0.13em;
}


.map-dot {
  position: absolute;

  width: 6px;
  height: 6px;

  background: var(--white);

  border-radius: 50%;
}


.dot-one {
  top: 35%;
  left: 42%;
}


.dot-two {
  top: 45%;
  left: 55%;
}


.dot-three {
  top: 62%;
  left: 35%;
}


.dot-four {
  top: 70%;
  left: 60%;
}


.map-line {
  position: absolute;

  height: 1px;

  background: var(--line-strong);

  transform-origin: left center;
}


.line-one {
  width: 35%;

  top: 39%;
  left: 43%;

  transform: rotate(25deg);
}


.line-two {
  width: 28%;

  top: 47%;
  left: 55%;

  transform: rotate(115deg);
}


.line-three {
  width: 32%;

  top: 64%;
  left: 37%;

  transform: rotate(-20deg);
}


/* =========================================================
   HUMAN
========================================================= */

.human-section {
  max-width: var(--max-width);

  margin: auto;

  padding:
    130px clamp(20px, 5vw, 70px);

  display: grid;

  grid-template-columns:
    minmax(0, 1fr)
    minmax(280px, 0.75fr);

  gap: 90px;

  align-items: center;

  border-bottom: 1px solid var(--line);
}


.human-visual {
  width: 100%;
}


.human-frame {
  position: relative;

  min-height: 510px;

  display: grid;

  place-items: center;

  border: 1px solid var(--line);

  background:
    radial-gradient(
      circle at center,
      #191919 0,
      #0b0b0b 65%
    );
}


.frame-corner {
  position: absolute;

  width: 25px;
  height: 25px;

  border-color: var(--line-strong);

  border-style: solid;
}


.corner-one {
  top: 20px;
  left: 20px;

  border-width: 1px 0 0 1px;
}


.corner-two {
  top: 20px;
  right: 20px;

  border-width: 1px 1px 0 0;
}


.corner-three {
  bottom: 20px;
  left: 20px;

  border-width: 0 0 1px 1px;
}


.corner-four {
  right: 20px;
  bottom: 20px;

  border-width: 0 1px 1px 0;
}


.human-center {
  display: flex;
  align-items: center;

  gap: 25px;

  font-size: 10px;

  letter-spacing: 0.15em;
}


.human-center strong {
  width: 60px;
  height: 60px;

  display: grid;
  place-items: center;

  border: 1px solid var(--line-strong);

  font-size: 22px;

  font-weight: 200;
}


.human-copy h2 {
  margin:
    18px 0 30px;

  font-size:
    clamp(42px, 5vw, 72px);

  line-height: 0.93;

  font-weight: 400;

  letter-spacing: -0.065em;
}


.human-copy p:not(.section-label) {
  margin-bottom: 20px;

  color: var(--soft);

  font-size: 16px;

  line-height: 1.75;
}


/* =========================================================
   CHAIN
========================================================= */

.chain-section {
  max-width: var(--max-width);

  margin: auto;

  padding:
    130px clamp(20px, 5vw, 70px);

  border-bottom: 1px solid var(--line);
}


.chain-heading {
  max-width: 750px;

  margin-bottom: 75px;
}


.chain-heading h2 {
  margin-top: 18px;

  font-size:
    clamp(45px, 6vw, 80px);

  line-height: 0.92;

  font-weight: 400;

  letter-spacing: -0.07em;
}


.chain {
  display: grid;

  grid-template-columns:
    1fr
    50px
    1fr
    50px
    1fr
    50px
    1fr;

  align-items: center;

  gap: 10px;
}


.chain-item {
  min-height: 180px;

  padding: 25px;

  display: flex;
  flex-direction: column;

  justify-content: space-between;

  border: 1px solid var(--line);
}


.chain-item span {
  color: var(--muted);

  font-size: 9px;

  letter-spacing: 0.15em;
}


.chain-item strong {
  font-size:
    clamp(22px, 2.5vw, 34px);

  font-weight: 400;

  letter-spacing: -0.04em;
}


.chain-arrow {
  color: var(--muted);

  font-size: 25px;

  text-align: center;
}


/* =========================================================
   PRINCIPLE
========================================================= */

.principle-section {
  max-width: var(--max-width);

  margin: auto;

  padding:
    150px clamp(20px, 5vw, 70px);

  display: grid;

  grid-template-columns:
    minmax(90px, 0.35fr)
    minmax(0, 2fr);

  border-bottom: 1px solid var(--line);
}


.principle-number {
  color: var(--muted);

  font-size: 9px;

  letter-spacing: 0.15em;
}


.principle-content {
  max-width: 1050px;
}


.principle-content h2 {
  margin:
    20px 0 45px;

  font-size:
    clamp(
      50px,
      8vw,
      115px
    );

  line-height: 0.88;

  font-weight: 400;

  letter-spacing: -0.075em;
}


.principle-content p:last-child {
  color: var(--muted);

  font-size: 18px;
}


/* =========================================================
   FINAL
========================================================= */

.final-section {
  max-width: var(--max-width);

  margin: auto;

  padding:
    180px clamp(20px, 5vw, 70px);

  text-align: center;
}


.final-section h2 {
  max-width: 1050px;

  margin:
    20px auto 45px;

  font-size:
    clamp(
      48px,
      8vw,
      115px
    );

  line-height: 0.88;

  font-weight: 400;

  letter-spacing: -0.075em;
}


.final-link {
  display: inline-block;

  padding-bottom: 7px;

  border-bottom: 1px solid var(--line-strong);

  font-size: 10px;

  text-transform: uppercase;

  letter-spacing: 0.15em;
}


/* =========================================================
   FOOTER
========================================================= */

.site-footer {
  max-width: var(--max-width);

  margin: auto;

  padding:
    70px
    clamp(20px, 5vw, 70px)
    30px;

  border-top: 1px solid var(--line);
}


.footer-top {
  display: grid;

  grid-template-columns:
    1fr
    2fr;

  gap: 70px;
}


.footer-symbol {
  width: 45px;
  height: 45px;

  display: grid;
  place-items: center;

  border: 1px solid var(--line-strong);

  font-size: 13px;
  font-weight: 600;
}


.footer-brand h2 {
  margin-top: 22px;

  font-size: 28px;

  font-weight: 500;

  letter-spacing: -0.05em;
}


.footer-brand p {
  margin-top: 7px;

  color: var(--muted);

  font-size: 12px;
}


.footer-links {
  display: grid;

  grid-template-columns:
    repeat(3, 1fr);

  gap: 30px;
}


.footer-column {
  display: flex;

  flex-direction: column;

  align-items: flex-start;
}


.footer-column > span {
  margin-bottom: 20px;

  color: var(--muted);

  font-size: 9px;

  text-transform: uppercase;

  letter-spacing: 0.15em;
}


.footer-column a {
  margin-bottom: 9px;

  color: #c8c8c3;

  font-size: 12px;
}


.footer-column a:hover {
  color: var(--white);
}


.footer-bottom {
  display: flex;

  justify-content: space-between;

  gap: 20px;

  margin-top: 100px;

  padding-top: 20px;

  border-top: 1px solid var(--line);

  color: var(--muted);

  font-size: 9px;

  text-transform: uppercase;

  letter-spacing: 0.13em;
}


/* =========================================================
   TABLET
========================================================= */

@media (max-width: 1000px) {

  .world-section,
  .human-section {
    gap: 45px;
  }


  .africa-section {
    grid-template-columns:
      100px
      minmax(0, 1fr);

    gap: 40px;
  }


  .africa-map {
    grid-column: 2;

    min-height: 350px;
  }


  .chain {
    grid-template-columns:
      1fr
      40px
      1fr;

    gap: 15px;
  }


  .chain-item:nth-of-type(5),
  .chain-item:nth-of-type(6),
  .chain-item:nth-of-type(7) {
    margin-top: 10px;
  }


  .footer-top {
    grid-template-columns: 1fr;
  }

}


/* =========================================================
   MOBILE
========================================================= */

@media (max-width: 700px) {

  .site-header {
    padding: 18px 20px;
  }


  .header-section {
    display: none;
  }


  .menu-button {
    width: 40px;
    height: 40px;
  }


  .hero {
    min-height: 680px;

    padding:
      45px 20px
      35px;

    display: flex;

    flex-direction: column;
  }


  .hero-content {
    margin-top: auto;

    margin-bottom: 70px;
  }


  .hero h1 {
    font-size:
      clamp(
        50px,
        15vw,
        82px
      );
  }


  .hero-description {
    margin-top: 35px;

    font-size: 15px;
  }


  .hero-meta {
    display: flex;

    flex-direction: column;

    gap: 10px;
  }


  .opening-section {
    display: block;

    padding:
      90px 20px;
  }


  .section-number {
    margin-bottom: 40px;
  }


  .opening-content h2 {
    font-size:
      clamp(40px, 13vw, 60px);
  }


  .world-section,
  .human-section {
    display: flex;

    flex-direction: column;

    padding:
      85px 20px;

    gap: 50px;
  }


  .world-visual,
  .human-frame {
    width: 100%;

    min-height: 380px;
  }


  .world-copy h2,
  .human-copy h2 {
    font-size:
      clamp(40px, 12vw, 58px);
  }


  .reasons-section {
    padding:
      85px 20px;
  }


  .reasons-heading {
    margin-bottom: 50px;
  }


  .reasons-heading h2 {
    font-size:
      clamp(42px, 13vw, 62px);
  }


  .reasons-grid {
    grid-template-columns: 1fr;
  }


  .reason-card {
    min-height: 300px;
  }


  .reason-icon {
    margin-top: 35px;
  }


  .africa-section {
    display: flex;

    flex-direction: column;

    padding:
      85px 20px;

    gap: 35px;
  }


  .africa-header {
    flex-direction: row;
  }


  .africa-content h2 {
    font-size:
      clamp(50px, 15vw, 75px);
  }


  .africa-content p {
    font-size: 15px;
  }


  .africa-map {
    min-height: 340px;

    width: 100%;
  }


  .chain-section {
    padding:
      85px 20px;
  }


  .chain-heading {
    margin-bottom: 50px;
  }


  .chain-heading h2 {
    font-size:
      clamp(42px, 13vw, 62px);
  }


  .chain {
    display: flex;

    flex-direction: column;

    gap: 8px;
  }


  .chain-item {
    width: 100%;

    min-height: 150px;
  }


  .chain-arrow {
    transform:
      rotate(90deg);

    padding: 4px 0;
  }


  .principle-section {
    display: block;

    padding:
      90px 20px;
  }


  .principle-number {
    margin-bottom: 40px;
  }


  .principle-content h2 {
    font-size:
      clamp(47px, 14vw, 72px);
  }


  .final-section {
    padding:
      120px 20px;
  }


  .final-section h2 {
    font-size:
      clamp(47px, 14vw, 72px);
  }


  .footer-links {
    grid-template-columns:
      repeat(2, 1fr);

    row-gap: 45px;
  }


  .footer-bottom {
    flex-direction: column;

    margin-top: 70px;

    gap: 8px;
  }


  .main-navigation a {
    grid-template-columns:
      40px 1fr;
  }


  .main-navigation a strong {
    font-size:
      clamp(31px, 10vw, 52px);
  }

}


/* =========================================================
   SMALL PHONES
========================================================= */

@media (max-width: 380px) {

  .footer-links {
    grid-template-columns: 1fr;
  }


  .hero h1 {
    font-size: 48px;
  }

}


/* =========================================================
   REDUCED MOTION
========================================================= */

@media (prefers-reduced-motion: reduce) {

  html {
    scroll-behavior: auto;
  }


  *,
  *::before {
    animation-duration: 0.01ms !important;

    animation-iteration-count: 1 !important;

    transition-duration: 0.01ms !important;
  }

}