/* Maamoun PharmD — newsletter site
   Tokens mirror maamoun-pharmd/brand-guidelines.md §9 */

:root {
  --cream:      #F9F6F1;
  --cream-deep: #F1EBE1;
  --surface:    #FFFFFF;
  --forest:     #0B3E12;
  --charcoal:   #14110E;
  --amber:      #C87A15;
  --amber-soft: #F3E4CC;
  --amber-deep: #8A5209;
  --slate:      #3E3A36;
  --taupe:      #6E6862;
  --hairline:   #E3DCD1;
  --muted:      #A89F94;
  --placeholder:#A39C94;

  --display: "Playfair Display", Georgia, serif;
  --body:    "DM Sans", -apple-system, BlinkMacSystemFont, sans-serif;
  --mono:    "DM Mono", ui-monospace, "SF Mono", monospace;

  --page: 1120px;
  --prose: 660px;
  --radius: 8px;
}

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

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

body {
  margin: 0;
  background: var(--cream);
  color: var(--slate);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.kicker {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--taupe);
  text-transform: uppercase;
  margin: 0;
}

.display {
  font-family: var(--display);
  font-weight: 500;
  letter-spacing: -0.022em;
  color: var(--charcoal);
  margin: 0;
}
.display em {
  font-style: italic;
  color: var(--amber);
}

.wrap { max-width: var(--page); margin: 0 auto; padding: 0 24px; }
.prose { max-width: var(--prose); margin: 0 auto; }

/* ---------- nav ---------- */
.nav {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 26px 44px;
}
.nav__mark {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--charcoal);
}
.nav__links { display: flex; align-items: center; gap: 30px; }
.nav__links a {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--taupe);
  transition: color .15s ease;
}
.nav__links a:hover { color: var(--charcoal); }

/* ---------- hero ---------- */
.hero {
  position: relative;
  min-height: 700px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px 80px 60px;
}
.hero__title { font-size: 62px; line-height: 1.19; }
.hero__sub {
  max-width: 620px;
  margin: 24px 0 0;
  font-size: 18px;
  line-height: 1.67;
  color: var(--slate);
}

/* ---------- signup ---------- */
.signup {
  display: flex;
  align-items: stretch;
  margin-top: 34px;
  border: 1px solid var(--charcoal);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
  max-width: 100%;
}
.signup input {
  width: 330px;
  max-width: 100%;
  height: 54px;
  border: 0;
  outline: 0;
  padding: 0 20px;
  font-family: var(--body);
  font-size: 16px;
  color: var(--charcoal);
  background: transparent;
}
.signup input::placeholder { color: var(--placeholder); }
.signup button {
  height: 54px;
  border: 0;
  padding: 0 30px;
  background: var(--charcoal);
  color: var(--cream);
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.12em;
  cursor: pointer;
  white-space: nowrap;
  transition: background .15s ease;
}
.signup button:hover { background: #2A2520; }
.signup button:disabled { opacity: .6; cursor: default; }

.signup-note {
  margin: 16px 0 0;
  font-size: 14px;
  color: var(--taupe);
}
.form-msg {
  margin: 14px 0 0;
  font-size: 15px;
  min-height: 22px;
}
.form-msg--ok { color: var(--forest); }
.form-msg--err { color: #A33; }

/* ---------- value line ---------- */
.value {
  margin: 26px 0 0;
  font-size: 17px;
  font-weight: 600;
  color: var(--charcoal);
  line-height: 1.9;
}
.value mark {
  background: var(--amber-soft);
  color: var(--amber-deep);
  border-radius: 3px;
  padding: 3px 9px;
}
.value-src {
  margin: 12px 0 0;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

/* ---------- proof ---------- */
.proof {
  margin: 44px 0 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--taupe);
}
.proof span { color: var(--forest); }

/* ---------- ingredient texture ---------- */
.texture {
  position: absolute;
  top: 118px;
  display: flex;
  flex-direction: column;
  gap: 7px;
  opacity: .16;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--forest);
  white-space: pre;
  pointer-events: none;
  user-select: none;
}
.texture--l { left: 0; padding-left: 28px; }
.texture--r { right: 0; top: 168px; padding-right: 28px; text-align: right; }

/* ---------- letter ---------- */
.letter {
  background: var(--cream-deep);
  padding: 92px 80px 96px;
  text-align: center;
}
.letter__body { text-align: left; margin-top: 34px; }
.letter__lede {
  font-family: var(--display);
  font-size: 27px;
  font-weight: 500;
  line-height: 1.48;
  letter-spacing: -0.015em;
  color: var(--charcoal);
  margin: 0;
}
.letter__body p {
  margin: 22px 0 0;
  font-size: 18px;
  line-height: 1.78;
  color: var(--slate);
}
.letter__body p:first-of-type { margin-top: 24px; }

.signoff {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 34px;
  padding-top: 26px;
  border-top: 1px solid var(--hairline);
}
.signoff img {
  width: 56px;
  height: 56px;
  border-radius: 999px;
  object-fit: cover;
  object-position: 50% 18%;
  border: 1px solid var(--hairline);
  flex-shrink: 0;
}
.signoff__name {
  font-family: var(--display);
  font-size: 18px;
  font-weight: 600;
  color: var(--charcoal);
}
.signoff__creds {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--taupe);
  margin-top: 2px;
}

/* ---------- faq ---------- */
.faq { padding: 92px 80px 100px; text-align: center; }
.faq__title { font-size: 40px; line-height: 1.3; margin-top: 16px; }
.faq__list {
  max-width: 760px;
  margin: 44px auto 0;
  text-align: left;
  border-top: 1px solid var(--hairline);
}
.faq__item { border-bottom: 1px solid var(--hairline); }
.faq__q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 26px 4px;
  background: none;
  border: 0;
  cursor: pointer;
  text-align: left;
  font-family: var(--display);
  font-size: 21px;
  font-weight: 600;
  line-height: 1.43;
  color: var(--charcoal);
}
.faq__chev {
  flex-shrink: 0;
  stroke: var(--taupe);
  transition: transform .2s ease, stroke .2s ease;
}
.faq__item[open] .faq__chev { transform: rotate(180deg); stroke: var(--amber); }
.faq__a {
  margin: 0;
  padding: 0 4px 26px;
  max-width: 680px;
  font-size: 17px;
  line-height: 1.7;
  color: var(--slate);
}
.faq__q::-webkit-details-marker { display: none; }

/* ---------- closing cta + footer ---------- */
.closing { margin-top: 60px; display: flex; flex-direction: column; align-items: center; }

.foot {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  padding: 22px 44px 26px;
}
.foot__mark {
  font-family: var(--display);
  font-size: 19px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--charcoal);
}
.foot__mark em { font-style: italic; font-weight: 400; color: var(--amber); }
.foot__links { display: flex; flex-wrap: wrap; align-items: center; gap: 26px; }
.foot__links a {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--muted);
  transition: color .15s ease;
}
.foot__links a:hover { color: var(--slate); }

.legal {
  padding: 0 44px 34px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
  max-width: 560px;
}

/* ---------- mobile ---------- */
@media (max-width: 860px) {
  .texture { display: none; }
  .nav { padding: 18px 20px; flex-wrap: wrap; gap: 14px; }
  .nav__links { gap: 18px; }
  .hero { padding: 32px 20px 52px; min-height: 0; }
  .hero__title { font-size: 38px; line-height: 1.16; }
  .hero__sub { font-size: 17px; margin-top: 20px; }
  .signup { flex-direction: column; width: 100%; max-width: 380px; }
  .signup input { width: 100%; height: 52px; }
  .signup button { width: 100%; height: 52px; border-top: 1px solid var(--charcoal); }
  .value { font-size: 16px; line-height: 2.1; }
  .proof { margin-top: 34px; font-size: 11px; letter-spacing: 0.1em; }
  .letter { padding: 60px 20px 64px; }
  .letter__lede { font-size: 23px; }
  .letter__body p { font-size: 17px; }
  .faq { padding: 60px 20px 72px; }
  .faq__title { font-size: 30px; }
  .faq__q { font-size: 18px; }
  .foot { padding: 20px; }
  .legal { padding: 0 20px 28px; }
}

/* visually hidden, still read by screen readers */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- archive ---------- */
.page-head { text-align: center; padding: 78px 80px 40px; }
.page-head h1 { font-size: 54px; line-height: 1.22; margin: 18px 0 0; }
.page-head p { max-width: 560px; margin: 16px auto 0; color: var(--slate); }

.issues { max-width: 1120px; margin: 0 auto; padding: 0 80px 96px; }
.issue {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 22px 4px;
  border-bottom: 1px solid var(--hairline);
  transition: background .15s ease;
}
a.issue:hover { background: var(--cream-deep); }
.issue__n {
  width: 46px; flex-shrink: 0;
  font-family: var(--mono); font-size: 13px; color: #BCB3A7;
}
.issue__title {
  flex: 1;
  font-family: var(--display);
  font-size: 21px; font-weight: 500; line-height: 1.43;
  letter-spacing: -0.012em; color: var(--charcoal);
}
.issue__date {
  width: 106px; flex-shrink: 0; text-align: right;
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.05em; color: var(--taupe);
}
.issue__lock { width: 16px; flex-shrink: 0; text-align: right; color: #BCB3A7; }
.issues__empty { padding: 40px 4px; color: var(--taupe); }

/* ---------- post + wall ---------- */
.post-head { text-align: center; padding: 72px 80px 0; }
.post-head h1 { font-size: 52px; line-height: 1.25; margin: 20px auto 0; max-width: 820px; }
.post-head .dek { max-width: 640px; margin: 18px auto 0; font-size: 19px; color: var(--taupe); }
.byline {
  display: flex; align-items: center; justify-content: center;
  gap: 12px; margin-top: 32px; padding-bottom: 40px;
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.05em; color: var(--taupe);
}
.byline img { width: 38px; height: 38px; border-radius: 999px; object-fit: cover; object-position: 50% 18%; }

.post-body { max-width: var(--prose); margin: 0 auto; padding: 0 24px; font-size: 18px; line-height: 1.83; }
.post-body h2 {
  font-family: var(--display); font-size: 27px; font-weight: 600;
  letter-spacing: -0.015em; color: var(--charcoal); margin: 38px 0 0;
}
.post-body p { margin: 22px 0 0; color: var(--slate); }
.post-fade {
  height: 120px;
  margin-top: -120px;
  background: linear-gradient(to bottom, rgba(249,246,241,0), var(--cream));
  pointer-events: none;
  position: relative;
}

.wall {
  max-width: 760px;
  margin: 12px auto 96px;
  padding: 52px 72px 54px;
  background: var(--forest);
  border-radius: 14px;
  text-align: center;
}
.wall .kicker { color: #8FA78F; }
.wall h2 { font-size: 38px; line-height: 1.32; margin: 18px 0 0; color: var(--cream); }
.wall h2 em { color: var(--amber); font-style: italic; }
.wall p { max-width: 520px; margin: 14px auto 0; color: #C3CFC3; }
.wall .signup { border-color: #2A5F30; background: #0F4A17; margin-left: auto; margin-right: auto; }
.wall .signup input { color: var(--cream); }
.wall .signup input::placeholder { color: #7E967E; }
.wall .signup button { background: var(--amber); color: #fff; }
.wall .signup button:hover { background: #B06A11; }
.wall .signup-note { color: #8FA78F; }

@media (max-width: 860px) {
  .page-head { padding: 52px 20px 28px; }
  .page-head h1 { font-size: 34px; }
  .issues { padding: 0 20px 64px; }
  .issue { gap: 14px; flex-wrap: wrap; }
  .issue__n { display: none; }
  .issue__title { font-size: 18px; flex-basis: 100%; }
  .issue__date { width: auto; text-align: left; }
  .post-head { padding: 52px 20px 0; }
  .post-head h1 { font-size: 32px; }
  .wall { padding: 36px 24px 40px; margin: 12px 20px 64px; }
  .wall h2 { font-size: 28px; }
}