/* ==========================================================================
   Talking to Patients — V3
   Design tokens derived from the book cover: warm ivory, deep navy,
   medical blue, coral/skin tones. System fonts only (no webfont requests).
   ========================================================================== */

:root {
  --ivory: #FBF6EC;
  --ivory-deep: #F3EBDC;
  --navy: #0B1E3D;
  --navy-soft: #16294A;
  --blue: #2C7BE5;
  --blue-deep: #1B5FC4;
  --coral: #D98B78;
  --ink: #14151A;
  --ink-soft: #4A4E58;
  --line: rgba(11, 30, 61, 0.12);
  --line-light: rgba(251, 246, 236, 0.22);
  --card-tint: #EEF4FC;

  --font-display: -apple-system, "Helvetica Neue", Helvetica, Arial, "Segoe UI", sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --max-w: 1180px;
  --radius: 14px;
  --shadow-card: 0 20px 60px -20px rgba(11, 30, 61, 0.35);
  --shadow-soft: 0 10px 30px -12px rgba(11, 30, 61, 0.18);

  padding-top: env(safe-area-inset-top, 0px);
  padding-bottom: env(safe-area-inset-bottom, 0px);
  color-scheme: light;
}

* { box-sizing: border-box; min-width: 0; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--ivory);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
[hidden] { display: none !important; }

a { color: inherit; }

h1, h2, h3 {
  font-family: var(--font-display);
  margin: 0;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.recognition__lead,
.section-heading {
  text-wrap: balance;
}

p { margin: 0; }

.section-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 96px 24px;
}

@media (max-width: 640px) {
  .section-inner { padding: 64px 20px; }
}

.eyebrow {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blue-deep);
  margin: 0 0 16px;
}

.eyebrow--center { text-align: center; }

.section-heading {
  font-size: clamp(26px, 2.6vw, 38px);
  font-weight: 700;
  text-align: center;
  line-height: 1.15;
  text-transform: uppercase;
  margin-bottom: 56px;
}

/* Focus visibility */
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--navy);
  color: #fff;
  padding: 12px 20px;
  z-index: 1000;
  border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

/* ---------------- Buttons ---------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  white-space: nowrap;
}

.btn--primary {
  background: var(--blue-deep);
  color: #fff;
  padding: 18px 34px;
  font-size: 15px;
  box-shadow: var(--shadow-soft);
}
.btn--primary:hover { background: #163f8c; transform: translateY(-1px); }
.btn--primary:active { transform: translateY(0); }

.btn--lg { padding: 20px 40px; font-size: 16px; }

.btn--nav {
  padding: 11px 20px;
  font-size: 12.5px;
  background: var(--navy);
  color: #fff;
  flex-shrink: 0;
}
.btn--nav:hover { background: var(--blue-deep); }

.btn--sticky { padding: 12px 22px; font-size: 13px; }

/* ---------------- Nav ---------------- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(251, 246, 236, 0.92);
  backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--line);
}
.site-nav__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 20px;
}
.site-nav__logo {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 15px;
  text-decoration: none;
  color: var(--navy);
  letter-spacing: -0.01em;
  margin-right: auto;
}
.site-nav__links {
  display: flex;
  gap: 22px;
}
.site-nav__links a {
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-soft);
}
.site-nav__links a:hover { color: var(--blue-deep); }

@media (max-width: 700px) {
  .site-nav__links { display: none; }
}

/* ---------------- Hero ---------------- */
.hero {
  padding: 56px 24px 72px;
}
.hero__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}
.hero__headline {
  font-size: clamp(30px, 4.2vw, 68px);
  font-weight: 900;
  line-height: 1.02;
  text-transform: uppercase;
  color: var(--navy);
}
.hero__headline .accent { color: var(--blue); }

.hero__sub {
  margin-top: 24px;
  font-size: 18px;
  color: var(--ink-soft);
  max-width: 46ch;
}
.hero__meta {
  margin-top: 20px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-soft);
}
.hero__price {
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 900;
  color: var(--navy);
  margin-top: 6px;
}
.hero__inner .btn { margin-top: 22px; }
.hero__reassurance {
  margin-top: 14px;
  font-size: 13px;
  color: var(--ink-soft);
}
.hero__byline {
  margin-top: 18px;
  font-size: 13px;
  font-weight: 600;
  color: var(--navy);
}

.hero__product-frame {
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transform: rotate(1.2deg);
}
@media (prefers-reduced-motion: no-preference) {
  .hero__product-frame {
    animation: float 7s ease-in-out infinite;
  }
}
@keyframes float {
  0%, 100% { transform: rotate(1.2deg) translateY(0); }
  50% { transform: rotate(1.2deg) translateY(-10px); }
}

.hero__product--mobile { display: none; }

@media (max-width: 900px) {
  .hero__inner { grid-template-columns: 1fr; gap: 28px; text-align: center; }
  .hero__sub { max-width: none; margin-left: auto; margin-right: auto; }
  .hero__product--desktop { display: none; }
  .hero__product--mobile {
    display: block;
    max-width: 320px;
    margin: 20px auto 0;
  }
  .hero__product--mobile .hero__product-frame,
  .hero__product--mobile picture {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-card);
  }
  .hero__product--mobile img { border-radius: 16px; }
}

/* ---------------- Recognition ---------------- */
.recognition {
  background: var(--ivory-deep);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.recognition__lead {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 3.2vw, 50px);
  line-height: 1.1;
  text-align: center;
  color: var(--navy);
  text-transform: uppercase;
  max-width: 800px;
  margin: 0 auto;
}
.recognition__prompt {
  text-align: center;
  margin-top: 16px;
  font-size: 16px;
  font-weight: 500;
  color: var(--ink-soft);
  font-style: italic;
}

.voice-stack {
  list-style: none;
  margin: 64px auto;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 30px;
  max-width: 760px;
}
.voice {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--navy);
}
.voice--a { font-size: clamp(19px, 2.4vw, 27px); align-self: flex-start; }
.voice--b { font-size: clamp(23px, 2.9vw, 33px); font-weight: 700; align-self: center; color: var(--blue-deep); }
.voice--c { font-size: clamp(17px, 2vw, 23px); align-self: flex-end; }

.voice-stack--light .voice { color: #fff; }
.voice-stack--light .voice--b { color: var(--blue); }

.recognition__resolve {
  text-align: center;
  font-size: clamp(30px, 3vw, 48px);
  font-weight: 800;
  text-transform: uppercase;
  color: var(--navy);
  line-height: 1.08;
  max-width: 860px;
  margin: 0 auto;
}

@media (max-width: 640px) {
  .voice--a, .voice--b, .voice--c { align-self: center; text-align: center; }
}

/* ---------------- Insight (dark) ---------------- */
.insight {
  background: var(--navy);
  color: #fff;
}
.insight__headline {
  font-size: clamp(32px, 3.5vw, 52px);
  font-weight: 800;
  line-height: 1.08;
  text-align: center;
  color: #fff;
  text-transform: uppercase;
  max-width: 780px;
  margin: 0 auto;
}
.insight__question {
  text-align: center;
  margin-top: 40px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(21px, 2.4vw, 28px);
  color: var(--blue);
}
.insight__resolve {
  text-align: center;
  margin-top: 56px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 2.6vw, 40px);
  line-height: 1.15;
  text-transform: uppercase;
  color: #fff;
}
.insight__copy {
  max-width: 62ch;
  margin: 32px auto 0;
  text-align: center;
  font-size: 17px;
  line-height: 1.65;
  color: rgba(255,255,255,0.78);
}

/* ---------------- Look Inside ---------------- */
.page-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px 28px;
}
@media (max-width: 900px) {
  .page-gallery { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .page-gallery { grid-template-columns: 1fr; max-width: 380px; margin: 0 auto; }
}

.page-card { margin: 0; }
.page-card__btn {
  display: block;
  width: 100%;
  padding: 0;
  border: none;
  background: none;
  cursor: zoom-in;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.page-card__btn:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}
.page-card__btn img { width: 100%; height: auto; }

.page-card figcaption {
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.page-card__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--navy);
  text-transform: uppercase;
}
.page-card__caption {
  font-size: 14px;
  color: var(--ink-soft);
}

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
}
.lightbox__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(11, 20, 35, 0.92);
}
.lightbox__dialog {
  position: relative;
  z-index: 1;
  max-width: min(90vw, 640px);
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: env(safe-area-inset-top, 0px) 16px env(safe-area-inset-bottom, 0px);
}
.lightbox__image {
  max-width: 100%;
  max-height: 74vh;
  border-radius: 10px;
  box-shadow: 0 30px 80px rgba(0,0,0,0.5);
}
.lightbox__caption {
  color: #fff;
  margin-top: 16px;
  font-size: 14px;
  text-align: center;
  max-width: 60ch;
}
.lightbox__close {
  position: absolute;
  top: -6px;
  right: 8px;
  background: none;
  border: none;
  color: #fff;
  font-size: 34px;
  line-height: 1;
  cursor: pointer;
  padding: 8px;
}
.lightbox__nav {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255,255,255,0.12);
  border: none;
  color: #fff;
  font-size: 32px;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  cursor: pointer;
}
.lightbox__nav:hover { background: rgba(255,255,255,0.22); }
.lightbox__nav--prev { left: 16px; }
.lightbox__nav--next { right: 16px; }
@media (max-width: 640px) {
  .lightbox__nav { width: 44px; height: 44px; font-size: 26px; }
  .lightbox__nav--prev { left: 6px; }
  .lightbox__nav--next { right: 6px; }
}

/* ---------------- What You'll Learn ---------------- */
.learn-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 44px 40px;
}
@media (max-width: 900px) {
  .learn-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .learn-grid { grid-template-columns: 1fr; }
}
.learn-item {
  border-top: 3px solid var(--navy);
  padding-top: 18px;
}
.learn-item h3 {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--navy);
  margin-bottom: 10px;
}
.learn-item p {
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink-soft);
}
.learn__cta {
  text-align: center;
  margin-top: 64px;
}

/* ---------------- Author ---------------- */
.author {
  background: var(--ivory-deep);
}
.author__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 96px 24px;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: center;
}
.author__photo picture, .author__photo img {
  border-radius: 18px;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.author__name {
  font-size: clamp(24px, 2.6vw, 32px);
  font-weight: 700;
  color: var(--navy);
  text-transform: uppercase;
  margin-top: 4px;
}
.author__title {
  margin-top: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--blue-deep);
}
.author__bio {
  margin-top: 22px;
  font-size: 17px;
  color: var(--ink-soft);
  max-width: 52ch;
}
@media (max-width: 900px) {
  .author__inner { grid-template-columns: 1fr; text-align: center; padding: 64px 20px; }
  .author__bio { margin-left: auto; margin-right: auto; }
  .author__photo { max-width: 340px; margin: 0 auto; }
}

/* ---------------- Offer ---------------- */
.offer__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 96px 24px;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: center;
}
.offer__visual picture, .offer__visual img {
  border-radius: 18px;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.offer__title {
  font-size: clamp(24px, 2.6vw, 32px);
  font-weight: 700;
  color: var(--navy);
  text-transform: uppercase;
}
.offer__format {
  margin-top: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-soft);
}
.offer__benefits {
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.offer__benefits li {
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink-soft);
  padding-left: 24px;
  position: relative;
}
.offer__benefits li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 10px;
  height: 2px;
  background: var(--blue);
}
.offer__price {
  margin-top: 32px;
  font-family: var(--font-display);
  font-size: 44px;
  font-weight: 900;
  color: var(--navy);
}
.offer__payment {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--ink-soft);
  margin-top: 2px;
}
.offer__inner .btn { margin-top: 22px; }
.offer__reassurance {
  margin-top: 14px;
  font-size: 13px;
  color: var(--ink-soft);
}
@media (max-width: 900px) {
  .offer__inner { grid-template-columns: 1fr; text-align: center; padding: 64px 20px; }
  .offer__benefits { align-items: center; }
  .offer__benefits li { padding-left: 0; }
  .offer__benefits li::before { display: none; }
  .offer__visual { max-width: 340px; margin: 0 auto; }
}

/* ---------------- FAQ ---------------- */
.faq-list {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.faq-item {
  border-bottom: 1px solid var(--line);
  padding: 20px 4px;
}
.faq-item summary {
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 16.5px;
  color: var(--navy);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  font-size: 22px;
  color: var(--blue);
  flex-shrink: 0;
  transition: transform 0.2s ease;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p {
  margin-top: 14px;
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink-soft);
  max-width: 65ch;
}

/* ---------------- Final close ---------------- */
.final-close {
  background: var(--navy);
  color: #fff;
  text-align: center;
}
.final-close__headline {
  font-size: clamp(28px, 3vw, 44px);
  font-weight: 800;
  color: #fff;
  text-transform: uppercase;
  max-width: 720px;
  margin: 0 auto;
  line-height: 1.12;
}
.final-close__sub {
  margin: 24px auto 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(28px, 3vw, 44px);
  color: var(--blue);
  text-transform: uppercase;
  max-width: 720px;
  line-height: 1.12;
}
.final-close__book {
  margin-top: 48px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  text-transform: uppercase;
}
.final-close__meta {
  margin-top: 6px;
  font-size: 14px;
  color: rgba(255,255,255,0.7);
}
.final-close__price {
  margin-top: 14px;
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 900;
}
.final-close .btn { margin-top: 26px; }

/* ---------------- Footer ---------------- */
.site-footer {
  border-top: 1px solid var(--line);
  background: var(--ivory);
}
.site-footer__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 32px 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: space-between;
  font-size: 13px;
  color: var(--ink-soft);
}
.site-footer nav { display: flex; gap: 18px; }
.site-footer a { text-decoration: none; }
.site-footer a:hover { color: var(--blue-deep); }

/* ---------------- Sticky mobile CTA ---------------- */
.sticky-cta {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 90;
  background: rgba(251, 246, 236, 0.96);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--line);
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom, 0px));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.sticky-cta__price {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 20px;
  color: var(--navy);
}

@media (min-width: 701px) {
  .sticky-cta { display: none !important; }
}

/* ---------------- Legal pages ---------------- */
.legal-content {
  max-width: 720px;
  margin: 0 auto;
  padding: 72px 24px 96px;
}
.legal-content h1 {
  font-size: clamp(26px, 4vw, 36px);
  color: var(--navy);
  text-transform: uppercase;
  margin-bottom: 8px;
}
.legal-content .legal-updated {
  font-size: 13px;
  color: var(--ink-soft);
  margin-bottom: 40px;
}
.legal-content h2 {
  font-size: 18px;
  color: var(--navy);
  margin-top: 36px;
  margin-bottom: 12px;
}
.legal-content p, .legal-content li {
  font-size: 15px;
  color: var(--ink-soft);
  margin-bottom: 14px;
}
.legal-content a { color: var(--blue-deep); }

/* ---------------- 404 page ---------------- */
.notfound {
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 96px 24px;
}
.notfound h1 {
  font-size: clamp(32px, 6vw, 56px);
  color: var(--navy);
}
.notfound p {
  margin-top: 16px;
  font-size: 16px;
  color: var(--ink-soft);
  max-width: 50ch;
}
.notfound .btn { margin-top: 28px; }

@media (max-width: 400px) {
  .btn--lg { padding: 18px 20px; font-size: 13.5px; }
  .btn { white-space: normal; text-align: center; line-height: 1.3; }
}

/* ---------------- Reveal-on-scroll (progressive enhancement) ---------------- */
@media (prefers-reduced-motion: no-preference) {
  [data-reveal] {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.6s ease, transform 0.6s ease;
  }
  [data-reveal].is-visible {
    opacity: 1;
    transform: translateY(0);
  }
}