:root {
  --paper: #fefdfe;
  --ink: #0d0d0d;
  --ink-soft: rgba(13, 13, 13, 0.74);
  --line: rgba(13, 13, 13, 0.15);
  --panel: #111111;
  --panel-soft: #171717;
  --max-width: 1160px;
  --radius: 8px;
  --shadow: 0 24px 60px rgba(13, 13, 13, 0.08);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(var(--line), var(--line)) left 1.5rem top / calc(100% - 3rem) 1px no-repeat,
    linear-gradient(var(--line), var(--line)) left 1.5rem bottom / calc(100% - 3rem) 1px no-repeat,
    var(--paper);
  color: var(--ink);
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
  line-height: 1.55;
}

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

a {
  color: inherit;
}

.page {
  width: min(calc(100% - 2rem), var(--max-width));
  margin: 0 auto;
  padding: 2rem 0 4rem;
}

.hero {
  display: grid;
  gap: 3rem;
  padding: 0 2rem 3rem;
}

.hero-logo {
  width: min(100%, 980px);
  height: auto;
  justify-self: center;
}

.signup-panel {
  max-width: 860px;
  padding: clamp(1.5rem, 3vw, 2.75rem);
  background:
    linear-gradient(135deg, var(--panel-soft) 0%, var(--panel) 100%);
  color: var(--paper);
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  justify-self: center;
}

.eyebrow {
  margin: 0 0 0.6rem;
  color: inherit;
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 0.95;
  font-weight: 700;
}

h1 {
  max-width: 10ch;
  font-size: clamp(2.6rem, 7vw, 5.4rem);
}

h2 {
  font-size: clamp(2.1rem, 4vw, 3.5rem);
}

h3 {
  font-size: 2rem;
  line-height: 1;
}

.intro,
.panel-note,
.feature-copy,
.card-description,
.card-url {
  font-size: 1.05rem;
}

.intro {
  max-width: 34rem;
  margin: 1rem 0 0;
  color: rgba(254, 253, 254, 0.88);
}

.panel-note {
  margin: 0.9rem 0 0;
  color: rgba(254, 253, 254, 0.66);
}

.signup-form {
  display: grid;
  gap: 0.9rem;
  margin-top: 1.8rem;
}

.signup-form label {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.signup-form input,
.signup-form textarea,
.signup-form button {
  font: inherit;
}

.signup-form input,
.signup-form textarea {
  width: 100%;
  padding: 1rem 1.05rem;
  border: 1.5px solid rgba(13, 13, 13, 0.9);
  border-radius: 6px;
  background: var(--paper);
  color: var(--ink);
}

.signup-form input::placeholder,
.signup-form textarea::placeholder {
  color: rgba(13, 13, 13, 0.56);
}

.signup-form textarea {
  min-height: 9rem;
  resize: vertical;
}

.signup-form input:focus,
.signup-form textarea:focus,
.signup-form button:focus,
.article-card:focus {
  outline: 3px solid var(--paper);
  outline-offset: 3px;
}

.signup-form button {
  justify-self: start;
  margin-top: 0.35rem;
  padding: 1rem 1.5rem;
  border: 1.5px solid var(--paper);
  border-radius: 999px;
  background: transparent;
  color: var(--paper);
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition:
    background-color 180ms ease,
    color 180ms ease,
    transform 180ms ease;
}

.signup-form button:hover {
  background: var(--paper);
  color: var(--ink);
  transform: translateY(-1px);
}

.features {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
  padding: 2.5rem 2rem 0;
  border-top: 1px solid var(--ink);
}

.feature {
  min-height: 100%;
  padding: clamp(1.4rem, 2.5vw, 2rem);
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.feature-video {
  background: var(--paper);
  color: var(--ink);
}

.feature-reading {
  background: var(--ink);
  color: var(--paper);
}

.feature-copy {
  max-width: 30rem;
  margin: 0.9rem 0 1.35rem;
}

.feature-video .feature-copy {
  color: var(--ink-soft);
}

.feature-reading .feature-copy {
  color: rgba(254, 253, 254, 0.78);
}

.video-frame {
  overflow: hidden;
  border: 2px solid var(--ink);
  border-radius: 6px;
  background: #000000;
  aspect-ratio: 16 / 9;
}

.video-frame iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.article-card {
  display: grid;
  gap: 0;
  overflow: hidden;
  border: 1.5px solid var(--paper);
  border-radius: 6px;
  background: var(--paper);
  color: var(--ink);
  text-decoration: none;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease;
}

.article-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.24);
}

.article-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-bottom: 1.5px solid var(--ink);
}

.card-copy {
  padding: 1.1rem 1.15rem 1.2rem;
}

.card-kicker {
  margin: 0 0 0.5rem;
  color: var(--ink-soft);
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.card-description {
  margin: 0.8rem 0 1rem;
}

.card-url {
  margin: 0;
  color: var(--ink-soft);
  word-break: break-word;
}

@media (max-width: 900px) {
  .page {
    width: min(calc(100% - 1rem), var(--max-width));
  }

  .hero {
    gap: 2rem;
    padding: 0 1rem 2.25rem;
  }

  .features {
    grid-template-columns: 1fr;
    padding: 2rem 1rem 0;
  }

  h1 {
    max-width: none;
  }
}

@media (max-width: 640px) {
  body {
    background:
      linear-gradient(var(--line), var(--line)) left 0.75rem top / calc(100% - 1.5rem) 1px no-repeat,
      linear-gradient(var(--line), var(--line)) left 0.75rem bottom / calc(100% - 1.5rem) 1px no-repeat,
      var(--paper);
  }

  .page {
    padding: 1rem 0 2.5rem;
  }

  .signup-panel,
  .feature {
    padding: 1.25rem;
  }

  h1 {
    font-size: clamp(2.4rem, 12vw, 4.4rem);
  }

  h2 {
    font-size: clamp(2rem, 10vw, 3rem);
  }

  .signup-form button {
    width: 100%;
    justify-self: stretch;
  }
}