/* ===========================
   coluracetam/issue.css
   Editorial landing — rx no.010, the racetam for the things you read.
   Base inherited from the refrax/adrafinil issue system; deliberately short.
   Accent: the chromatic iris — cyan → lilac → pink.
   =========================== */

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

:root {
  --ink:        #0a0807;
  --ink-2:      #110e0b;
  --paper:      #f5ede0;
  --paper-dim:  #c2b5a0;
  --paper-mute: #7a6f5e;
  --rule:       rgba(245, 237, 224, 0.14);
  --rule-soft:  rgba(245, 237, 224, 0.06);

  --accent:      #4bbbff;
  --accent-soft: rgba(75, 187, 255, 0.16);
  --spectrum:    linear-gradient(100deg, #76e6e0, #c2a4f2, #ff86bf);

  --serif: 'Fraunces', ui-serif, Georgia, serif;
  --mono:  'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  --jp:    'Zen Kaku Gothic New', 'Noto Sans JP', sans-serif;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --content-max: 1100px;
  --gutter:      max(28px, 4vw);
}

html { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; scroll-behavior: smooth; overflow-x: hidden; }

body {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--serif);
  font-weight: 380;
  font-size: clamp(17px, 1.05vw + 12px, 19px);
  line-height: 1.55;
  letter-spacing: 0.005em;
  min-height: 100vh;
  position: relative;
}

/* Subtle paper grain on the ink */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 100;
  background-image: radial-gradient(rgba(245,237,224,0.018) 1px, transparent 1px);
  background-size: 3px 3px;
  mix-blend-mode: screen;
  opacity: 0.6;
}

a { color: inherit; text-decoration: none; }
::selection { background: var(--accent); color: var(--ink); }

/* ===========================
   Masthead
   =========================== */

.masthead {
  position: sticky;
  top: 0;
  z-index: 50;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 20px;
  align-items: center;
  padding: 14px var(--gutter);
  background: rgba(10, 8, 7, 0.78);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--paper-dim);
}
.masthead-mark { font-family: var(--jp); font-size: 18px; letter-spacing: 0.1em; color: var(--paper); text-transform: none; font-weight: 800; }
.masthead-meta { display: flex; gap: 22px; justify-content: center; }
.masthead-meta span { white-space: nowrap; }
.masthead-meta .dot { color: var(--paper-mute); }
.masthead-nav { display: flex; gap: 20px; align-items: center; }
.masthead-nav a:hover { color: var(--paper); }

.dl-pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 14px 7px 16px;
  border: 1px solid var(--paper); color: var(--paper);
  border-radius: 999px;
  transition: background 200ms var(--ease), color 200ms var(--ease);
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.16em;
}
.dl-pill:hover { background: var(--paper); color: var(--ink); }
.dl-pill .arr { display: inline-block; transform: translateY(1px); }

@media (max-width: 760px) {
  .masthead { grid-template-columns: auto auto; }
  .masthead-meta { display: none; }
}

/* ===========================
   Cover — the whole pitch, above the fold
   =========================== */

main { display: block; }

.wrap { max-width: var(--content-max); margin: 0 auto; padding: 0 var(--gutter); }

.cover { text-align: center; padding: clamp(3rem, 8vw, 6rem) 0 2.4rem; }
.cover-icon { width: 96px; height: 96px; border-radius: 22px; margin: 0 auto 1.6rem; display: block; box-shadow: 0 18px 50px -16px rgba(0,0,0,0.7); }
.cover-eyebrow {
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.28em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 1.1rem;
}
.cover-title {
  font-family: var(--serif); font-weight: 600;
  font-size: clamp(2.4rem, 6vw, 4.4rem); line-height: 1.02; letter-spacing: -0.01em;
}
.cover-title .grad {
  background: var(--spectrum); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.cover-sub {
  max-width: 40ch; margin: 1.4rem auto 0; color: var(--paper-dim);
  font-size: clamp(1rem, 1.4vw, 1.18rem); line-height: 1.6;
}
.cover-actions { display: flex; gap: 16px; justify-content: center; align-items: center; flex-wrap: wrap; margin-top: 2rem; }
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 12px 22px; border-radius: 999px;
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase;
  transition: transform 160ms var(--ease), background 200ms var(--ease), color 200ms var(--ease), border-color 200ms var(--ease);
}
.btn-primary { background: var(--accent); color: var(--ink); font-weight: 600; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 30px -10px var(--accent-soft); }
.btn-ghost { border: 1px solid var(--rule); color: var(--paper-dim); }
.btn-ghost:hover { color: var(--paper); border-color: var(--paper-dim); }

/* ===========================
   Screenshots
   =========================== */

.shots {
  display: flex; gap: clamp(16px, 3vw, 34px); justify-content: center; align-items: flex-start;
  flex-wrap: wrap; padding: 1.2rem 0 2.4rem;
}
.shot { margin: 0; max-width: 420px; flex: 1 1 340px; }
.shot img {
  width: 100%; height: auto; display: block; border-radius: 14px;
  border: 1px solid var(--rule);
  box-shadow: 0 30px 70px -30px rgba(0,0,0,0.85);
}
.shot figcaption {
  margin-top: 0.9rem; text-align: center;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--paper-mute);
}
.shot figcaption b { color: var(--paper-dim); font-weight: 600; }

/* ===========================
   Directions — the honest, tiny spec
   =========================== */

.spec { border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); padding: 2.6rem 0; }
.spec h2 {
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--paper-mute); text-align: center; margin-bottom: 1.8rem; font-weight: 500;
}
.spec-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.2rem 2.4rem; max-width: 820px; margin: 0 auto; }
.spec-item { display: flex; gap: 12px; align-items: baseline; }
.spec-item .k { color: var(--accent); font-family: var(--mono); font-size: 13px; flex: none; }
.spec-item .v { color: var(--paper-dim); font-size: 1rem; line-height: 1.5; }
.spec-item .v b { color: var(--paper); font-weight: 600; }

/* ===========================
   Final
   =========================== */

.final { text-align: center; padding: clamp(3rem, 7vw, 5rem) 0 2rem; }
.final p { font-family: var(--serif); font-size: clamp(1.4rem, 3vw, 2rem); color: var(--paper); }
.final .micro { font-family: var(--mono); font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--paper-mute); margin-top: 1.2rem; }
.final .cover-actions { margin-top: 1.8rem; }

/* ===========================
   Colophon
   =========================== */

.colophon {
  padding: 3.4rem var(--gutter) 2.6rem;
  border-top: 1px solid var(--rule);
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--paper-mute);
  display: grid; grid-template-columns: 1fr auto 1fr; gap: 28px; align-items: center;
}
.colophon a { color: var(--paper-dim); border-bottom: 1px solid var(--rule); transition: color 160ms var(--ease), border-color 160ms var(--ease); }
.colophon a:hover { color: var(--accent); border-bottom-color: var(--accent); }
.colophon-center { text-align: center; font-family: var(--jp); font-size: 16px; letter-spacing: 0.16em; color: var(--paper-dim); text-transform: none; }
.colophon-right { text-align: right; }
@media (max-width: 720px) {
  .colophon { grid-template-columns: 1fr; text-align: center; gap: 18px; }
  .colophon-right { text-align: center; }
}