/* ========================================
   RESET
======================================== */

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;

  background: #f5f5f0;
  color: #111111;

  font-family:
    Arial,
    Helvetica,
    sans-serif;
}


/* ========================================
   VARIABLES
======================================== */

:root {

  --page-margin:
    clamp(16px, 2.2vw, 36px);

  --section-space:
    clamp(80px, 10vw, 180px);

  --border:
    1px solid rgba(0, 0, 0, 0.22);

}


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

.header {
  display: flex;

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

  padding:
    18px
    var(--page-margin);

  border-bottom:
    var(--border);
}


.brand {
  color: inherit;

  text-decoration: none;

  font-size: 17px;
}


.nav {
  display: flex;

  gap:
    clamp(16px, 2vw, 34px);
}


.nav a {
  color: inherit;

  text-decoration: none;

  font-size: 14px;
}


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

.hero {
  min-height:
    calc(100svh - 55px);

  padding:
    var(--page-margin);

  display: flex;

  flex-direction: column;

  justify-content: space-between;

  border-bottom:
    var(--border);
}


.hero-meta {
  display: flex;

  justify-content: space-between;

  font-size: 13px;
}


.hero h1 {
  margin: 0;

  font-size:
    clamp(90px, 17vw, 320px);

  font-weight: 400;

  line-height: 0.72;

  letter-spacing: -0.065em;
}


/* ========================================
   TYPEFACE INTRO
======================================== */

.typeface-intro {
  display: grid;

  grid-template-columns:
    2fr 1fr;

  gap:
    clamp(40px, 6vw, 100px);

  padding:
    var(--section-space)
    var(--page-margin)
    var(--page-margin);

  border-bottom:
    var(--border);
}


.label {
  margin:
    0 0 18px 0;

  font-size: 12px;
}


.typeface-intro h2 {
  margin: 0;

  font-size:
    clamp(64px, 10vw, 180px);

  font-weight: 400;

  line-height: 0.82;

  letter-spacing: -0.055em;
}


.typeface-data {
  display: grid;

  grid-template-columns:
    repeat(2, 1fr);

  gap:
    10px 30px;

  align-content: end;

  font-size: 13px;
}


/* ========================================
   TYPE TESTER
======================================== */

.tester-section {
  border-bottom:
    var(--border);
}


.tester-controls {
  display: grid;

  grid-template-columns:
    1fr
    repeat(3, minmax(200px, 1fr));

  align-items: center;

  gap: 30px;

  padding:
    14px
    var(--page-margin);

  border-bottom:
    var(--border);

  font-size: 12px;
}


.tester-title {
  white-space: nowrap;
}


.control {
  display: grid;

  grid-template-columns:
    auto 1fr 55px;

  align-items: center;

  gap: 12px;
}


.control label {
  white-space: nowrap;
}


.control span {
  white-space: nowrap;

  text-align: right;
}


/* slider */

.control input[type="range"] {
  width: 100%;

  appearance: none;
  -webkit-appearance: none;

  height: 1px;

  background: #111;

  outline: none;
}


.control input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  -webkit-appearance: none;

  width: 12px;
  height: 12px;

  border-radius: 50%;

  background: #111;

  cursor: pointer;
}


.control input[type="range"]::-moz-range-thumb {
  width: 12px;
  height: 12px;

  border: 0;

  border-radius: 50%;

  background: #111;

  cursor: pointer;
}


/* editable tester */

.tester {
  width: 100%;

  min-height:
    clamp(320px, 45vw, 720px);

  padding:
    clamp(35px, 5vw, 80px)
    var(--page-margin);

  font-size: 96px;

  font-weight: 400;

  line-height: 0.9;

  letter-spacing: 0;

  outline: none;

  cursor: text;

  overflow-wrap: anywhere;
}


.tester:focus {
  outline: none;
}


/* ========================================
   SPECIMENS
======================================== */

.specimen {
  padding:
    12px
    var(--page-margin)
    clamp(30px, 4vw, 65px);

  border-bottom:
    var(--border);
}


.specimen-label {
  margin-bottom:
    clamp(30px, 4vw, 70px);

  font-size: 12px;
}


.specimen-text {
  font-size:
    clamp(82px, 15vw, 280px);

  line-height: 0.78;

  letter-spacing: -0.055em;

  overflow: hidden;
}


.thin {
  font-weight: 100;
}

.light {
  font-weight: 300;
}

.regular {
  font-weight: 400;
}

.medium {
  font-weight: 500;
}

.bold {
  font-weight: 700;
}

.black {
  font-weight: 900;
}


/* ========================================
   DISPLAY
======================================== */

.display-block {
  min-height: 85svh;

  padding:
    var(--page-margin);

  display: flex;

  flex-direction: column;

  justify-content: space-between;

  border-bottom:
    var(--border);
}


.display-small {
  font-size: 12px;
}


.display-large {
  font-size:
    clamp(180px, 38vw, 700px);

  line-height: 0.64;

  letter-spacing: -0.08em;
}


/* ========================================
   SECTION TITLE
======================================== */

.section-title {
  margin-bottom:
    clamp(50px, 8vw, 120px);

  font-size: 12px;
}


/* ========================================
   CHARACTERS
======================================== */

.characters {
  padding:
    var(--section-space)
    var(--page-margin);

  border-bottom:
    var(--border);
}


.character-text {
  font-size:
    clamp(32px, 5.5vw, 100px);

  line-height: 1;

  letter-spacing: -0.025em;

  overflow-wrap: anywhere;
}


/* ========================================
   FEATURES
======================================== */

.features {
  padding:
    var(--section-space)
    var(--page-margin);

  border-bottom:
    var(--border);
}


.feature-grid {
  display: grid;

  grid-template-columns:
    repeat(2, 1fr);
}


.feature {
  min-height:
    clamp(220px, 28vw, 440px);

  padding: 16px;

  display: flex;

  flex-direction: column;

  justify-content: space-between;

  border-top:
    var(--border);
}


.feature:nth-child(odd) {
  border-right:
    var(--border);
}


.feature span {
  font-size: 12px;
}


.feature strong {
  font-size:
    clamp(56px, 9vw, 160px);

  font-weight: 400;

  line-height: 0.9;

  letter-spacing: -0.04em;
}


/* ========================================
   ABOUT
======================================== */

.about-typeface {
  display: grid;

  grid-template-columns:
    1fr 2fr;

  gap:
    clamp(40px, 7vw, 120px);

  padding:
    var(--section-space)
    var(--page-margin);

  border-bottom:
    var(--border);
}


.about-title {
  font-size:
    clamp(120px, 20vw, 350px);

  line-height: 0.7;

  letter-spacing: -0.06em;
}


.about-copy p {
  margin: 0;

  max-width: 1200px;

  font-size:
    clamp(30px, 4vw, 74px);

  line-height: 1.03;

  letter-spacing: -0.035em;
}


.metadata {
  display: grid;

  grid-template-columns:
    repeat(2, 1fr);

  gap: 30px;

  margin-top:
    clamp(80px, 10vw, 160px);
}


.metadata div {
  display: flex;

  flex-direction: column;

  gap: 8px;
}


.metadata span {
  font-size: 12px;
}


.metadata strong {
  font-size: 17px;

  font-weight: 400;
}


/* ========================================
   CTA
======================================== */

.cta {
  min-height: 65svh;

  padding:
    var(--page-margin);

  display: flex;

  flex-direction: column;

  justify-content: space-between;

  border-bottom:
    var(--border);
}


.cta span {
  font-size: 12px;
}


.cta a {
  color: inherit;

  text-decoration: none;

  font-size:
    clamp(72px, 12vw, 220px);

  line-height: 0.84;

  letter-spacing: -0.055em;
}


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

footer {
  display: flex;

  justify-content: space-between;

  padding:
    20px
    var(--page-margin);

  font-size: 12px;
}


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

@media (max-width: 1000px) {

  .tester-controls {
    grid-template-columns:
      1fr 1fr;
  }

}


@media (max-width: 900px) {

  .typeface-intro {
    grid-template-columns: 1fr;
  }


  .about-typeface {
    grid-template-columns: 1fr;
  }

}


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

@media (max-width: 650px) {

  .header {
    align-items: flex-start;
  }


  .nav {
    flex-direction: column;

    gap: 4px;

    text-align: right;
  }


  .hero {
    min-height: 80svh;
  }


  .hero-meta {
    flex-direction: column;

    gap: 4px;
  }


  .hero h1 {
    font-size:
      clamp(72px, 22vw, 130px);
  }


  .typeface-data {
    grid-template-columns: 1fr;
  }


  .tester-controls {
    grid-template-columns: 1fr;

    gap: 18px;
  }


  .control {
    grid-template-columns:
      65px 1fr 50px;
  }


  .tester {
    min-height: 280px;

    font-size: 64px;
  }


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


  .feature:nth-child(odd) {
    border-right: 0;
  }


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


  footer {
    flex-direction: column;

    gap: 6px;
  }

}