/* =========================================================
   DIGIPRODUX — Stylesheet v2
   Dark, futuristic. Cyan on graphite. Built to ship.
   ========================================================= */

:root {
  /* Palette — near-black graphite with soft electric cyan */
  --bg:          #09090B;   /* zinc 950 */
  --bg-soft:     #0F0F12;
  --surface:     #141418;
  --surface-2:   #1A1A1F;
  --line:        #1F1F24;
  --line-hi:     #2A2A31;
  --ink:         #FAFAFA;
  --ink-soft:    #A1A1AA;   /* zinc 400 */
  --ink-mute:    #52525B;   /* zinc 600 */
  --accent:      #67E8F9;   /* cyan 300 — soft electric */
  --accent-hi:   #22D3EE;   /* cyan 400 — punchier */
  --accent-dim:  #155E75;   /* cyan 800 — deep */
  --accent-glow: rgba(103, 232, 249, 0.20);

  /* Type */
  --display: "Unbounded", "Geist", ui-sans-serif, system-ui, sans-serif;
  --sans:    "Geist", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --mono:    "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  /* Rhythm */
  --radius: 6px;
  --maxw:   1200px;
  --pad:    48px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.55;
  letter-spacing: 0;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  position: relative;
}

/* Ambient cyan glow — behind everything */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(1100px 700px at 18% -8%, rgba(103, 232, 249, 0.06), transparent 60%),
    radial-gradient(900px 600px at 100% 110%, rgba(103, 232, 249, 0.035), transparent 60%);
  pointer-events: none;
  z-index: 0;
}

/* Dot-grid overlay — subtle technical texture */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  background-image: radial-gradient(circle at 1px 1px, var(--line-hi) 1px, transparent 0);
  background-size: 32px 32px;
  opacity: 0.5;
  pointer-events: none;
  z-index: 0;
  mask-image: radial-gradient(ellipse 90% 80% at 50% 40%, black 40%, transparent 85%);
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 50% 40%, black 40%, transparent 85%);
}

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

::selection {
  background: var(--accent);
  color: var(--bg);
}

/* -------------------- Wordmark (logo) -------------------- */
.wordmark {
  display: inline-flex;
  align-items: center;
  font-family: var(--sans);
  font-weight: 500;
  font-size: 15px;
  letter-spacing: 0.12em;
  line-height: 1;
  color: var(--ink);
  user-select: none;
}
.wordmark__token { display: inline-block; }
.wordmark__cursor {
  display: inline-block;
  width: 2px;
  height: 0.85em;
  margin: 0 0.35em;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow), 0 0 2px var(--accent);
  animation: cursor-blink 1.4s ease-in-out infinite;
  transform: translateY(0.06em);
}
@keyframes cursor-blink {
  0%, 45%   { opacity: 1; }
  50%, 100% { opacity: 0.25; }
}

.wordmark--lg { font-size: 22px; letter-spacing: 0.1em; }

/* -------------------- NAV -------------------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px var(--pad);
  background: rgba(9, 9, 11, 0.72);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--line);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 4px;
  margin: -4px;
  border-radius: 4px;
}

.nav__badge {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-mute);
  padding: 4px 8px;
  border: 1px solid var(--line);
  border-radius: 3px;
  line-height: 1;
}

.nav__links {
  display: flex;
  gap: 36px;
}
.nav__links a {
  position: relative;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-soft);
  transition: color 0.2s ease;
  padding: 4px 0;
}
.nav__links a:hover { color: var(--accent); }
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s cubic-bezier(.2,.8,.2,1);
}
.nav__links a:hover::after { transform: scaleX(1); }

/* -------------------- Buttons -------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 24px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.22s cubic-bezier(.2,.8,.2,1);
  white-space: nowrap;
  position: relative;
}
.btn--small { padding: 10px 18px; font-size: 10px; letter-spacing: 0.18em; }

.btn--primary {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}
.btn--primary:hover {
  background: var(--accent-hi);
  border-color: var(--accent-hi);
  box-shadow: 0 10px 30px -8px var(--accent-glow), 0 0 0 1px rgba(103, 232, 249, 0.4);
  transform: translateY(-1px);
}
.btn--primary:active { transform: translateY(0); }

.btn--ghost {
  color: var(--ink-soft);
  border-color: var(--line-hi);
  background: transparent;
}
.btn--ghost:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(103, 232, 249, 0.04);
}

/* Focus — visible cyan ring */
.btn:focus-visible,
a:focus-visible,
input:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: var(--radius);
}

/* -------------------- Hero -------------------- */
.hero {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 120px var(--pad) 140px;
  position: relative;
  z-index: 2;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 48px;
  padding: 7px 14px;
  border: 1px solid var(--line);
  border-radius: 100px;
  background: var(--bg-soft);
  opacity: 0;
  animation: fadeUp 0.9s 0.1s ease forwards;
}
.dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
  animation: pulse 2.4s ease infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.4; transform: scale(0.85); }
}

.hero__title {
  font-family: var(--display);
  font-weight: 300;
  font-size: clamp(3rem, 7.5vw, 6.8rem);
  line-height: 1.0;
  letter-spacing: -0.03em;
  margin-bottom: 36px;
  opacity: 0;
  animation: fadeUp 1s 0.25s ease forwards;
}
.hero__title .accent {
  color: var(--accent);
  font-weight: 400;
}

.hero__sub {
  max-width: 560px;
  font-size: 18px;
  line-height: 1.55;
  color: var(--ink-soft);
  margin-bottom: 48px;
  opacity: 0;
  animation: fadeUp 1s 0.4s ease forwards;
}

.hero__cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 96px;
  opacity: 0;
  animation: fadeUp 1s 0.55s ease forwards;
}

.hero__meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  padding-top: 36px;
  border-top: 1px solid var(--line);
  opacity: 0;
  animation: fadeUp 1s 0.7s ease forwards;
}
.hero__meta > div { display: flex; flex-direction: column; gap: 10px; }
.hero__meta-num {
  font-family: var(--display);
  font-size: 46px;
  font-weight: 300;
  color: var(--ink);
  line-height: 1;
  letter-spacing: -0.02em;
}
.hero__meta-num--text {
  font-size: 28px;
  letter-spacing: 0.02em;
}
.hero__meta-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.hero__meta-label::before {
  content: "// ";
  color: var(--accent);
  opacity: 0.6;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* -------------------- Section headings -------------------- */
.section-head { margin-bottom: 72px; }
.section-head__label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 22px;
}
.section-head__label::before {
  content: "";
  display: inline-block;
  width: 18px;
  height: 1px;
  background: var(--accent);
}
.section-head__title {
  font-family: var(--display);
  font-weight: 300;
  font-size: clamp(2rem, 4.6vw, 3.6rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
}
.section-head__title .accent {
  color: var(--accent);
  font-weight: 400;
}

/* -------------------- Collection / Books -------------------- */
.collection {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 80px var(--pad) 140px;
  position: relative;
  z-index: 2;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.book {
  display: flex;
  flex-direction: column;
  gap: 22px;
  padding: 22px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform 0.4s cubic-bezier(.2,.8,.2,1),
              border-color 0.3s ease,
              box-shadow 0.4s ease;
  position: relative;
}
.book::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  padding: 1px;
  background: linear-gradient(135deg, transparent 40%, rgba(103, 232, 249, 0.25) 100%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
          mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}
.book:hover {
  transform: translateY(-4px);
  border-color: var(--line-hi);
  box-shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.6);
}
.book:hover::before { opacity: 1; }

.book__cover-link { display: block; }

.book__cover {
  position: relative;
  aspect-ratio: 5 / 8;
  border-radius: 4px;
  overflow: hidden;
  background: var(--surface);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.03) inset,
    0 20px 40px -15px rgba(0, 0, 0, 0.6);
  transition: box-shadow 0.5s ease;
}
.book:hover .book__cover {
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.05) inset,
    0 30px 60px -15px rgba(0, 0, 0, 0.7),
    0 0 0 1px rgba(103, 232, 249, 0.18);
}
.book__cover img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.book__spine {
  position: absolute;
  top: 0; left: 0; bottom: 0;
  width: 6px;
  background: linear-gradient(90deg, rgba(0, 0, 0, 0.35), transparent);
  pointer-events: none;
  z-index: 2;
}

.book__meta {
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-mute);
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}
.book__meta span:last-child { color: var(--accent); opacity: 0.8; }
.book__name {
  font-family: var(--display);
  font-weight: 300;
  font-size: 22px;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-top: 16px;
  margin-bottom: 12px;
}
.book__desc {
  color: var(--ink-soft);
  font-size: 14.5px;
  line-height: 1.55;
  margin-bottom: 16px;
}
.book__buy {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}
.book__price {
  font-family: var(--display);
  font-size: 30px;
  font-weight: 300;
  color: var(--ink);
  line-height: 1;
  letter-spacing: -0.02em;
}
.book__price-currency {
  font-size: 14px;
  color: var(--accent);
  vertical-align: super;
  margin-right: 2px;
  font-weight: 400;
}

/* -------------------- Collection sub-groups (Work / Life) -------------------- */
.collection__group + .collection__group {
  margin-top: 96px;
}
.collection__group-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 22px;
  margin-bottom: 40px;
  border-bottom: 1px solid var(--line);
}
.collection__group-label {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.collection__group-count {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

/* -------------------- Coming-soon banner -------------------- */
.coming-soon {
  margin-top: 72px;
  padding: 36px 40px;
  background:
    linear-gradient(135deg, rgba(103, 232, 249, 0.04) 0%, transparent 60%),
    var(--bg-soft);
  border: 1px dashed var(--line-hi);
  border-radius: var(--radius);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 28px;
  position: relative;
  overflow: hidden;
}
.coming-soon::before {
  content: "";
  position: absolute;
  right: -40px;
  top: -40px;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, var(--accent-glow), transparent 60%);
  pointer-events: none;
  opacity: 0.6;
}
.coming-soon__pulse {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line-hi);
  border-radius: 50%;
  background: var(--bg);
  position: relative;
  z-index: 1;
}
.coming-soon__body { position: relative; z-index: 1; }
.coming-soon__label {
  display: inline-block;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}
.coming-soon__title {
  font-family: var(--display);
  font-weight: 300;
  font-size: clamp(1.25rem, 2.4vw, 1.7rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}
.coming-soon__title .accent {
  color: var(--accent);
  font-weight: 400;
}
.coming-soon__sub {
  color: var(--ink-soft);
  font-size: 14.5px;
  line-height: 1.55;
  max-width: 46ch;
}
.coming-soon__cta { position: relative; z-index: 1; }

/* -------------------- Philosophy -------------------- */
.philosophy {
  max-width: 900px;
  margin: 0 auto;
  padding: 120px var(--pad) 140px;
  text-align: center;
  position: relative;
  z-index: 2;
}
.philosophy .section-head__label {
  margin-bottom: 48px;
}
.philosophy__quote p {
  font-family: var(--display);
  font-weight: 300;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.philosophy__quote .accent {
  color: var(--accent);
  font-weight: 400;
}
.philosophy__sig {
  margin-top: 40px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

/* -------------------- Dispatch (Newsletter) -------------------- */
.letters {
  padding: 120px var(--pad);
  background: var(--bg-soft);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  position: relative;
  z-index: 2;
}
.letters__inner {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}
.letters h2 {
  font-family: var(--display);
  font-weight: 300;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin: 20px 0 16px;
}
.letters h2 .accent {
  color: var(--accent);
  font-weight: 400;
}
.letters__inner > p { color: var(--ink-soft); }

.letters__form {
  display: flex;
  gap: 8px;
  margin-top: 32px;
  padding: 5px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.letters__form:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.letters__form input {
  flex: 1;
  padding: 12px 16px;
  background: transparent;
  border: none;
  outline: none;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
}
.letters__form input::placeholder { color: var(--ink-mute); }

.letters__note {
  margin-top: 20px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  min-height: 18px;
}

/* -------------------- Footer -------------------- */
.footer {
  padding: 80px var(--pad) 40px;
  position: relative;
  z-index: 2;
}
.footer__top {
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 64px;
  padding-bottom: 60px;
  border-bottom: 1px solid var(--line);
}
.footer__brand p {
  margin-top: 20px;
  color: var(--ink-mute);
  font-size: 14px;
  max-width: 320px;
  line-height: 1.55;
}
.footer__cols {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.footer__cols h5 {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-soft);
  font-weight: 500;
  margin-bottom: 20px;
}
.footer__cols a {
  display: block;
  padding: 6px 0;
  color: var(--ink-mute);
  font-size: 14px;
  transition: color 0.2s ease;
}
.footer__cols a:hover { color: var(--accent); }

.footer__bottom {
  max-width: var(--maxw);
  margin: 32px auto 0;
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

/* -------------------- Responsive -------------------- */
@media (max-width: 900px) {
  :root { --pad: 24px; }
  .nav { padding: 14px 24px; }
  .nav__links { gap: 20px; }
  .nav__links a:nth-child(3) { display: none; }
  .nav__badge { display: none; }

  .hero { padding: 80px 24px 100px; }
  .hero__cta { margin-bottom: 72px; }

  .collection { padding: 60px 24px 100px; }
  .grid { grid-template-columns: 1fr; gap: 28px; }

  .collection__group + .collection__group { margin-top: 72px; }
  .collection__group-head { margin-bottom: 32px; }

  .coming-soon {
    margin-top: 56px;
    padding: 28px;
    grid-template-columns: 1fr;
    gap: 20px;
    text-align: left;
  }
  .coming-soon__pulse { display: none; }
  .coming-soon__cta { justify-self: start; }

  .philosophy { padding: 100px 24px; }

  .letters { padding: 100px 24px; }
  .letters__form { flex-direction: column; padding: 8px; }
  .letters__form input { width: 100%; }
  .letters__form .btn { width: 100%; }

  .footer { padding: 60px 24px 30px; }
  .footer__top { grid-template-columns: 1fr; gap: 40px; }
  .footer__cols { grid-template-columns: repeat(2, 1fr); gap: 32px 20px; }
  .footer__bottom { flex-direction: column; gap: 10px; align-items: flex-start; }
}

@media (max-width: 540px) {
  .hero__meta { grid-template-columns: 1fr; gap: 22px; }
}

/* -------------------- Motion preferences -------------------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .wordmark__cursor { animation: none; opacity: 1; }
  .dot { animation: none; opacity: 1; }
}