:root {
  --paper-white: #ffffff;
  --ink-black: #111111;
  --ink-soft: #3a3a38;
  --signal-accent: #e5482b;
  --hairline: #d9d9d4;
  --muted-grey: #6b6b66;
  --cover-deep: #151515;
  --cover-warm: #2a2a28;
  --sheet-tint: #f5f5f2;
  --gutter: 1.25rem;
  --heading-font: 'Space Grotesk', 'Noto Sans Arabic', sans-serif;
  --text-font: 'IBM Plex Sans', 'Noto Sans Arabic', sans-serif;
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body.ink-page {
  margin: 0;
  background: var(--paper-white);
  color: var(--ink-black);
  font-family: var(--text-font), 'Noto Sans Arabic', sans-serif;
  font-size: clamp(1.125rem, 1.6vw, 1.4rem);
  line-height: 1.6;
  overflow-x: hidden;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

h1,
h2,
h3 {
  font-family: var(--heading-font), 'Noto Sans Arabic', sans-serif;
  font-weight: 700;
  line-height: 1.15;
  margin: 0 0 0.6em;
}

h1 {
  font-size: clamp(2.6rem, 6vw, 5.5rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4.2vw, 3.6rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.25rem, 2vw, 1.6rem);
}

p {
  margin: 0 0 1em;
  max-width: 38rem;
}

a {
  color: inherit;
}

:focus-visible {
  outline: 3px solid var(--signal-accent);
  outline-offset: 3px;
}

.ink-main > section {
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: clamp(3rem, 8vw, 6rem) var(--gutter);
  border-bottom: 1px solid var(--hairline);
}

.ink-main > section:last-of-type {
  border-bottom: 0;
}

/* Screen 1: hero */
.reader-hero {
  width: 100%;
}

.reader-hero,
.chapter-band,
.reader-note,
.order-grid {
  display: grid;
  gap: 2.5rem;
  align-items: center;
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.kicker {
  font-family: var(--heading-font), 'Noto Sans Arabic', sans-serif;
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  text-transform: none;
  color: var(--signal-accent);
  font-weight: 700;
  margin: 0;
}

.hero-sub {
  color: var(--ink-soft);
  margin: 0;
}

.signal-cta,
.submit-signal {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  align-self: flex-start;
  min-height: 3.5rem;
  padding: 0.9rem 2rem;
  background: var(--ink-black);
  color: var(--paper-white);
  border: 2px solid var(--ink-black);
  border-radius: 0;
  font-family: var(--heading-font), 'Noto Sans Arabic', sans-serif;
  font-size: 1.125rem;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

.signal-cta:hover,
.submit-signal:hover {
  background: var(--signal-accent);
  border-color: var(--signal-accent);
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-photo {
  width: 100%;
  aspect-ratio: 4 / 3;
  border: 1px solid var(--hairline);
  border-radius: 0;
}

.spine-cover {
  position: relative;
  z-index: 1;
  width: min(100%, 20rem);
  aspect-ratio: 2 / 3;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 2rem 1.75rem 2rem 2.25rem;
  background: linear-gradient(165deg, var(--cover-deep) 0%, var(--cover-warm) 62%, var(--signal-accent) 130%);
  color: var(--paper-white);
  border-radius: 0;
  box-shadow: 0 28px 50px -18px rgba(0, 0, 0, 0.45);
  margin-block-end: 1.5rem;
}

.hero-visual .spine-cover {
  position: absolute;
  inset-block-end: -1rem;
  inset-inline-start: -0.5rem;
  transform: rotate(-2deg);
}

.spine-cover::before {
  content: "";
  position: absolute;
  inset-block: 0;
  inset-inline-start: 0;
  width: 14px;
  background: rgba(255, 255, 255, 0.14);
  border-inline-end: 1px solid rgba(255, 255, 255, 0.25);
}

.spine-cover::after {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  pointer-events: none;
}

.spine-cover--small {
  width: min(100%, 15rem);
  margin-block-end: 0;
}

.cover-series {
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  opacity: 0.85;
}

.cover-title {
  font-family: var(--heading-font), 'Noto Sans Arabic', sans-serif;
  font-size: clamp(1.8rem, 3.6vw, 2.6rem);
  font-weight: 900;
  line-height: 1.15;
}

.cover-author {
  font-size: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.35);
  padding-top: 0.75rem;
}

/* Screen 2 and 3: bands */
.chapter-band,
.reader-note {
  grid-template-columns: 1fr;
}

.band-media img {
  width: 100%;
  aspect-ratio: 4 / 5;
  border-radius: 0;
  border: 1px solid var(--hairline);
}

.band-copy {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.chapter-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0 2rem;
  counter-reset: chapter;
  border-top: 1px solid var(--hairline);
}

.chapter-list li {
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--hairline);
  position: relative;
  padding-inline-start: 3.5rem;
}

.chapter-list li::before {
  counter-increment: chapter;
  content: counter(chapter, decimal-leading-zero);
  position: absolute;
  inset-inline-start: 0;
  top: 1.35rem;
  font-family: var(--heading-font), 'Noto Sans Arabic', sans-serif;
  font-weight: 700;
  color: var(--signal-accent);
  font-size: 1rem;
}

.chapter-list h3 {
  margin-bottom: 0.3rem;
}

.chapter-list p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 1rem;
}

.features-title {
  margin-top: 0.5rem;
}

.feature-grid {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

.feature-grid li {
  border: 1px solid var(--hairline);
  padding: 1rem 1.1rem;
  font-size: 1rem;
  background: var(--sheet-tint);
}

.audience-list {
  padding-inline-start: 1.25rem;
  margin: 0 0 1.25rem;
  color: var(--ink-soft);
}

.audience-list li {
  margin-bottom: 0.5rem;
}

.quote-block {
  margin: 1rem 0 0;
  padding: 1.5rem 0 0 0;
  border-top: 2px solid var(--signal-accent);
}

.quote-block p {
  font-family: var(--heading-font), 'Noto Sans Arabic', sans-serif;
  font-size: clamp(1.25rem, 2.2vw, 1.75rem);
  font-weight: 500;
  line-height: 1.4;
}

.quote-block cite {
  font-style: normal;
  font-size: 0.95rem;
  color: var(--muted-grey);
}

/* Screen 4: order */
.order-band {
  background: var(--sheet-tint);
}

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

.order-visual {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: center;
}

.order-photo {
  width: 100%;
  aspect-ratio: 3 / 2;
  border: 1px solid var(--hairline);
  border-radius: 0;
}

.order-panel {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.order-lead {
  color: var(--ink-soft);
  margin: 0;
}

.order-note {
  color: var(--muted-grey);
  font-size: 1rem;
  padding-block-end: 1rem;
  border-bottom: 1px solid var(--hairline);
}

.order-form {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-top: 1rem;
}

.field-label {
  font-weight: 600;
  font-size: 1.05rem;
  margin-top: 0.4rem;
}

.field-input {
  width: 100%;
  min-height: 3.5rem;
  padding: 0.75rem 1rem;
  font-family: var(--text-font), 'Noto Sans Arabic', sans-serif;
  font-size: 1.125rem;
  color: var(--ink-black);
  background: var(--paper-white);
  border: 1px solid var(--ink-black);
  border-radius: 0;
}

.field-input::placeholder {
  color: #8a8a85;
}

.field-input:focus-visible {
  outline: 3px solid var(--signal-accent);
  outline-offset: 2px;
  border-color: var(--signal-accent);
}

.submit-signal {
  width: 100%;
  margin-top: 0.8rem;
  min-height: 3.75rem;
}

.consent-line {
  font-size: 0.9rem;
  color: var(--muted-grey);
  margin-top: 1rem;
  max-width: none;
}

.consent-line a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* Footer */
.ink-footer {
  padding: 2.5rem var(--gutter) 3rem;
  text-align: center;
  border-top: 1px solid var(--hairline);
  font-size: 0.95rem;
  color: var(--muted-grey);
}

.ink-footer p {
  margin: 0.5rem auto;
  max-width: 38rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.25rem;
  margin-bottom: 1rem;
}

.footer-links a {
  color: var(--ink-black);
  text-underline-offset: 3px;
}

.footer-copy {
  color: var(--ink-black);
  font-weight: 600;
}

/* Legal pages */
.legal-page {
  margin: 0;
  background: var(--paper-white);
  color: var(--ink-black);
  font-family: var(--text-font), 'Noto Sans Arabic', sans-serif;
  font-size: 1.05rem;
  line-height: 1.7;
}

.legal-main {
  max-width: 46rem;
  margin: 0 auto;
  padding: 3rem var(--gutter) 4rem;
}

.legal-main h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  border-bottom: 2px solid var(--ink-black);
  padding-bottom: 0.5rem;
}

.legal-intro {
  color: var(--ink-soft);
  margin-top: 1.25rem;
}

.legal-section {
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--hairline);
}

.legal-section h2 {
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  color: var(--ink-black);
}

.legal-section p,
.legal-section li {
  color: var(--ink-soft);
}

.legal-section ul {
  padding-inline-start: 1.25rem;
}

.legal-back {
  display: inline-block;
  margin-bottom: 2rem;
  font-weight: 700;
  color: var(--signal-accent);
  text-decoration: none;
  border-bottom: 2px solid var(--signal-accent);
}

/* Responsive */
@media (min-width: 720px) {
  .feature-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 900px) {
  .reader-hero {
    grid-template-columns: 1.05fr 0.95fr;
  }

  .chapter-band,
  .reader-note {
    grid-template-columns: 1fr 1fr;
  }

  .band--flip .band-media {
    order: 2;
  }

  .order-grid {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 4rem;
  }

  .order-visual {
    align-items: flex-start;
  }

  .hero-visual .spine-cover {
    inset-inline-start: 0;
  }
}

@media (max-width: 359px) {
  .signal-cta,
  .submit-signal {
    font-size: 1rem;
    padding: 0.8rem 1.2rem;
  }
}