/* ======================================================
   RESET & BASE
====================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Montserrat', sans-serif;
  background-color: var(--offwhite);
  color: #111111;
  line-height: 1.7;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

/* ======================================================
   CSS CUSTOM PROPERTIES
====================================================== */
:root {
  --cream:    #ffedcc;
  --offwhite: #faf7f2;
  --indigo:   #6c5aa5;
  --orange:   #f89e66;
  --teal:     #209d8c;
  --white:    #ffffff;
  --dark:     #111111;
  --dark-60:  rgba(17,17,17,0.6);
  --indigo-10: rgba(108,90,165,0.08);
  --indigo-20: rgba(108,90,165,0.16);
  --orange-10: rgba(248,158,102,0.12);
  --teal-10:   rgba(32,157,140,0.10);

  --radius-sm:  8px;
  --radius-md:  16px;
  --radius-lg:  24px;
  --radius-xl:  36px;

  --shadow-card: 0 4px 24px rgba(108,90,165,0.10);
  --shadow-book: 0 24px 64px rgba(108,90,165,0.22), 0 8px 24px rgba(17,17,17,0.12);

  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);

  --max-width: 1200px;
  --section-py: 96px;
  --section-py-sm: 64px;
}

/* ======================================================
   CONTAINER
====================================================== */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: 24px;
}

/* ======================================================
   TYPOGRAPHY
====================================================== */
.section-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 600;
  color: var(--indigo);
  line-height: 1.2;
  margin-bottom: 20px;
}

.section-title--white {
  color: var(--white);
}

.section-subtitle {
  font-family: 'Montserrat', sans-serif;
  font-size: 1rem;
  color: var(--dark-60);
  max-width: 600px;
  margin-inline: auto;
  margin-top: -8px;
  margin-bottom: 0;
}

.section-tag {
  display: inline-block;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--teal);
  background: var(--teal-10);
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 16px;
}

.section-tag--indigo {
  color: var(--indigo);
  background: var(--indigo-10);
}

.section-tag--orange {
  color: #c96d2a;
  background: var(--orange-10);
}

.section-tag--white {
  color: var(--white);
  background: rgba(255,255,255,0.15);
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-header .section-title {
  margin-bottom: 16px;
}

/* ======================================================
   BUTTONS
====================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 12px 24px;
  border-radius: 100px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn--orange {
  background: var(--orange);
  color: var(--white);
  border-color: var(--orange);
  box-shadow: 0 4px 20px rgba(248,158,102,0.35);
}

.btn--orange:hover {
  background: #e88748;
  border-color: #e88748;
  box-shadow: 0 8px 28px rgba(248,158,102,0.45);
}

.btn--outline {
  background: transparent;
  color: var(--indigo);
  border-color: var(--indigo);
}

.btn--outline:hover {
  background: var(--indigo-10);
}

.btn--indigo {
  background: var(--indigo);
  color: var(--white);
  border-color: var(--indigo);
}

.btn--indigo:hover {
  background: #5a4a8f;
  border-color: #5a4a8f;
}

.btn--outline-indigo {
  background: transparent;
  color: var(--indigo);
  border-color: var(--indigo);
}

.btn--outline-indigo:hover {
  background: var(--indigo);
  color: var(--white);
}

.btn--large {
  font-size: 0.9375rem;
  padding: 14px 32px;
}

.btn--xlarge {
  font-size: 1rem;
  padding: 18px 40px;
  border-radius: 100px;
}

/* ======================================================
   REVEAL ANIMATIONS
====================================================== */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal--delay-1 { transition-delay: 0.12s; }
.reveal--delay-2 { transition-delay: 0.24s; }
.reveal--delay-3 { transition-delay: 0.36s; }

/* ======================================================
   HEADER
====================================================== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 247, 242, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(108,90,165,0.10);
  transition: box-shadow var(--transition);
}

.header.is-scrolled {
  box-shadow: 0 2px 20px rgba(108,90,165,0.12);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 68px;
}

.header__brand {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.header__logo {
  height: 48px;
  width: auto;
  object-fit: contain;
  display: block;
}

.header__nav-list {
  display: flex;
  align-items: center;
  gap: 8px;
}

.header__nav-link {
  font-family: 'Montserrat', sans-serif;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--dark);
  padding: 6px 12px;
  border-radius: 100px;
  transition: color var(--transition), background var(--transition);
}

.header__nav-link:hover,
.header__nav-link.is-active {
  color: var(--indigo);
  background: var(--indigo-10);
  font-weight: 600;
}

.header__cta {
  flex-shrink: 0;
}

.header__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
}

.header__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--indigo);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.header__hamburger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.header__hamburger.is-open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.header__hamburger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ======================================================
   HERO
====================================================== */
.hero {
  position: relative;
  padding: 80px 0 96px;
  overflow: hidden;
  background: var(--cream);
}

.hero__bg-circle {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.hero__bg-circle--1 {
  width: 560px;
  height: 560px;
  background: radial-gradient(circle, rgba(248,158,102,0.13) 0%, transparent 70%);
  top: -160px;
  right: -80px;
}

.hero__bg-circle--2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(32,157,140,0.09) 0%, transparent 70%);
  bottom: -100px;
  left: -60px;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 64px;
  align-items: center;
}

.hero__content {
  max-width: 600px;
}

.hero__tag {
  display: inline-block;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--teal);
  border: 1.5px solid var(--teal);
  padding: 5px 14px;
  border-radius: 100px;
  margin-bottom: 24px;
}

.hero__title {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 700;
  color: var(--indigo);
  line-height: 1.1;
  margin-bottom: 20px;
}

.hero__title-highlight {
  font-style: italic;
  color: var(--orange);
}

.hero__subtitle {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.0625rem;
  font-weight: 500;
  color: var(--indigo);
  margin-bottom: 16px;
  line-height: 1.6;
}

.hero__body {
  font-size: 0.9375rem;
  color: var(--dark-60);
  margin-bottom: 20px;
  line-height: 1.75;
}

.hero__author {
  font-size: 0.9375rem;
  color: var(--dark);
  margin-bottom: 20px;
}

.hero__author strong {
  color: var(--indigo);
  font-weight: 600;
}

.hero__publishers {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 36px;
}

.hero__publishers-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--dark-60);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  white-space: nowrap;
}

.hero__seals {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* assets/selo-editora-planeta.png e assets/selo-paidos.png */
.hero__seal {
  height: 36px;
  width: auto;
  object-fit: contain;
  opacity: 0.85;
  transition: opacity var(--transition);
}

.hero__seal[alt="Editora Planeta"] {
  height: 22px;
}

.hero__seal:hover { opacity: 1; }

.hero__ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 36px;
}

.hero__shipping-note {
  font-size: 0.775rem;
  color: var(--dark-60);
  opacity: 0.65;
  margin-top: 4px;
}

.hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.hero__badge {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--dark-60);
  display: flex;
  align-items: center;
  gap: 6px;
}

.badge-icon {
  color: var(--teal);
  font-size: 0.7rem;
}

/* Book visual */
.hero__visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__book-wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* assets/mockup-livro-tdah.png */
.hero__book {
  width: 360px;
  max-width: 100%;
  object-fit: contain;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-book);
  position: relative;
  z-index: 1;
  transition: transform 0.6s ease;
}

.hero__book:hover {
  transform: translateY(-8px) rotate(1deg);
}

.hero__book-glow {
  position: absolute;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(248,158,102,0.25) 0%, transparent 70%);
  border-radius: 50%;
  z-index: 0;
}

/* ======================================================
   WHY SECTION
====================================================== */
.why {
  padding: var(--section-py) 0;
  background: var(--offwhite);
}

.why__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.why__body {
  font-size: 1rem;
  color: var(--dark-60);
  line-height: 1.8;
  margin-top: 8px;
}

.quote-block {
  position: relative;
  padding: 32px 32px 32px 40px;
  background: linear-gradient(135deg, var(--teal) 0%, #197a6d 100%);
  border-radius: var(--radius-xl);
  color: var(--white);
  overflow: hidden;
}

.quote-block::before {
  content: '\201C';
  font-family: 'Cormorant Garamond', serif;
  font-size: 6rem;
  font-weight: 700;
  color: rgba(255,255,255,0.10);
  position: absolute;
  top: -8px;
  left: 16px;
  line-height: 1;
}

.quote-block__line {
  width: 32px;
  height: 3px;
  background: var(--orange);
  border-radius: 2px;
  margin-bottom: 16px;
}

.quote-block__text {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(1.15rem, 2vw, 1.45rem);
  font-weight: 500;
  font-style: italic;
  line-height: 1.5;
  color: var(--white);
}

/* ======================================================
   FOR WHOM
====================================================== */
.for-whom {
  padding: var(--section-py) 0;
  background: var(--white);
}

.for-whom__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.for-whom__card {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: var(--offwhite);
  border: 1.5px solid rgba(108,90,165,0.08);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.for-whom__card:hover {
  border-color: var(--teal);
  box-shadow: 0 4px 16px rgba(32,157,140,0.10);
  transform: translateY(-2px);
}

.card-check {
  width: 20px;
  height: 20px;
  min-width: 20px;
  border-radius: 50%;
  background: var(--teal);
  position: relative;
  flex-shrink: 0;
  margin-top: 1px;
}

.card-check::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 9px;
  height: 5px;
  border-left: 2px solid var(--white);
  border-bottom: 2px solid var(--white);
  transform: translate(-50%, -60%) rotate(-45deg);
}

.for-whom__card p {
  font-size: 0.875rem;
  color: var(--dark);
  line-height: 1.55;
}

/* ======================================================
   CONTENT SECTION
====================================================== */
.content-section {
  padding: var(--section-py) 0;
  background: var(--offwhite);
}

.content-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.content-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
  border: 1.5px solid transparent;
}

.content-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--orange), var(--teal));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.content-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
  border-color: rgba(108,90,165,0.12);
}

.content-card:hover::after {
  transform: scaleX(1);
}

.content-card__number {
  font-family: 'Cormorant Garamond', serif;
  font-size: 3rem;
  font-weight: 700;
  color: var(--orange);
  opacity: 0.45;
  line-height: 1;
  margin-bottom: 8px;
}

.content-card__title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--indigo);
  margin-bottom: 10px;
  line-height: 1.3;
}

.content-card__body {
  font-size: 0.875rem;
  color: var(--dark-60);
  line-height: 1.65;
}

/* ======================================================
   GUIDE SECTION
====================================================== */
.guide {
  padding: var(--section-py) 0;
  background: var(--white);
}

.guide__inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 72px;
  align-items: center;
}

/* assets/contracapa-livro-tdah.png */
.guide__book-img {
  width: 100%;
  max-width: 320px;
  margin-inline: auto;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-book);
  transition: transform 0.5s ease;
}

.guide__book-img:hover {
  transform: scale(1.02);
}

.guide__body {
  font-size: 1rem;
  color: var(--dark-60);
  line-height: 1.8;
  margin-bottom: 36px;
}

.guide__pillars {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.guide__pillar {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  background: var(--white);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--teal);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--dark);
  transition: transform var(--transition), box-shadow var(--transition);
}

.guide__pillar:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-card);
}

.guide__pillar-icon {
  color: var(--teal);
  font-size: 1.1rem;
  flex-shrink: 0;
}

/* ======================================================
   AUTHOR SECTION
====================================================== */
.author {
  padding: var(--section-py) 0;
  background: var(--offwhite);
}

.author__inner {
  display: grid;
  grid-template-columns: 420px 1fr;
  gap: 72px;
  align-items: start;
}

.author__image-wrap {
  position: relative;
}

/* assets/foto-lara-clara.jpeg */
.author__photo {
  width: 100%;
  border-radius: var(--radius-xl);
  object-fit: cover;
  aspect-ratio: 4/5;
  display: block;
  position: relative;
  z-index: 1;
  box-shadow: 0 20px 60px rgba(108,90,165,0.15);
}

.author__image-deco {
  position: absolute;
  inset: 16px -16px -16px 16px;
  border: 2px solid var(--orange);
  border-radius: var(--radius-xl);
  z-index: 0;
  opacity: 0.5;
}

.author__body {
  font-size: 0.9375rem;
  color: var(--dark-60);
  line-height: 1.8;
  margin-bottom: 16px;
}

.author__closing {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.2rem;
  font-style: italic;
  color: var(--indigo);
  margin-top: 8px;
  margin-bottom: 28px;
  padding-left: 16px;
  border-left: 3px solid var(--orange);
  line-height: 1.5;
}

.author__credentials {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.author__credential {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--indigo);
  background: var(--indigo-10);
  padding: 6px 14px;
  border-radius: 100px;
  border: 1px solid var(--indigo-20);
  transition: background var(--transition), transform var(--transition);
}

.author__credential:hover {
  background: var(--indigo);
  color: var(--white);
  transform: translateY(-2px);
}

/* ======================================================
   EVIDENCE SECTION
====================================================== */
.evidence {
  padding: var(--section-py) 0;
  background: linear-gradient(135deg, var(--indigo) 0%, #4a3870 100%);
  position: relative;
  overflow: hidden;
}

.evidence::before {
  content: '';
  position: absolute;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(248,158,102,0.12) 0%, transparent 70%);
  top: -150px;
  right: -100px;
  pointer-events: none;
}

.evidence__inner {
  text-align: center;
}

.evidence__body {
  font-size: 1rem;
  color: rgba(255,255,255,0.75);
  max-width: 640px;
  margin-inline: auto;
  line-height: 1.8;
  margin-top: 8px;
  margin-bottom: 56px;
}

.evidence__pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 800px;
  margin-inline: auto;
}

.evidence__pillar {
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-lg);
  padding: 36px 24px;
  transition: background var(--transition), transform var(--transition);
}

.evidence__pillar:hover {
  background: rgba(255,255,255,0.12);
  transform: translateY(-4px);
}

.evidence__pillar-icon {
  color: var(--orange);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.evidence__pillar h3 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--white);
  line-height: 1.35;
}

/* ======================================================
   PRESALE
====================================================== */
.presale {
  padding: var(--section-py) 0;
  background: var(--cream);
  position: relative;
}

.presale__deco-top {
  height: 4px;
  background: linear-gradient(90deg, var(--orange), var(--teal), var(--indigo));
}

.presale__inner {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 72px;
  align-items: center;
}

/* assets/mockup-livro-tdah.png */
.presale__book {
  width: 100%;
  max-width: 380px;
  margin-inline: auto;
  filter: drop-shadow(var(--shadow-book));
  transition: transform 0.5s ease;
}

.presale__book:hover {
  transform: translateY(-8px) scale(1.02);
}

.presale__subtitle {
  font-size: 1rem;
  color: var(--dark-60);
  line-height: 1.75;
  margin-bottom: 28px;
}

.presale__publishers {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 36px;
}

.presale__pub-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--dark-60);
  white-space: nowrap;
}

.presale__seals {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* assets/selo-paidos.png e assets/selo-editora-planeta.png */
.presale__seal {
  height: 40px;
  width: auto;
  object-fit: contain;
  opacity: 0.85;
  transition: opacity var(--transition);
}

.presale__seal[alt="Editora Planeta"] {
  height: 24px;
}

.presale__seal:hover { opacity: 1; }

.presale__cta-wrap {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.presale__disclaimer {
  font-size: 0.8rem;
  color: var(--dark-60);
}

.presale__shipping-note {
  font-size: 0.8rem;
  color: var(--dark-60);
  opacity: 0.75;
}

/* ======================================================
   SOCIAL SECTION
====================================================== */
.social {
  padding: var(--section-py) 0;
  background: var(--offwhite);
}

.social__inner {
  text-align: center;
}

.social__body {
  font-size: 1rem;
  color: var(--dark-60);
  max-width: 520px;
  margin-inline: auto;
  line-height: 1.75;
  margin-bottom: 0;
}

.social__actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 40px;
}

/* ======================================================
   FOOTER
====================================================== */
.footer {
  background: #197a6d;
  color: rgba(255,255,255,0.85);
}

.footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 32px;
  padding-block: 40px;
}

.footer__brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
}


.footer__tagline {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.65);
  line-height: 1.55;
  max-width: 340px;
}

.footer__brand-logo {
  height: 56px;
  width: auto;
  object-fit: contain;
  display: block;
  margin-bottom: 12px;
  opacity: 0.95;
}

.footer__seals {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 14px;
  margin-top: 16px;
}

/* assets/selo-paidos.png e assets/selo-editora-planeta.png */
.footer__seal {
  height: 28px;
  width: auto;
  object-fit: contain;
  opacity: 0.70;
  filter: brightness(0) invert(1);
  transition: opacity var(--transition);
}

.footer__seal[alt="Editora Planeta"] {
  height: 17px;
}

.footer__seal:hover { opacity: 1; }

.footer__nav-list {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 8px 20px;
}

.footer__nav-link {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.70);
  transition: color var(--transition);
}

.footer__nav-link:hover {
  color: var(--white);
}

.footer__links {
  display: flex;
  flex-direction: row;
  gap: 16px;
}

.footer__social-link {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.70);
  transition: color var(--transition);
}

.footer__social-link:hover {
  color: var(--white);
}

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.15);
  padding-block: 16px;
}

.footer__bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer__copy,
.footer__credit {
  font-size: 0.775rem;
  color: rgba(255,255,255,0.50);
}

.footer__credit strong {
  color: rgba(255,255,255,0.70);
}

/* ======================================================
   RESPONSIVE — TABLET
====================================================== */
@media (max-width: 1024px) {
  :root {
    --section-py: 72px;
  }

  .hero__inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero__content {
    max-width: 100%;
    text-align: center;
  }

  .hero__publishers,
  .hero__ctas,
  .hero__badges {
    justify-content: center;
  }

  .hero__visual {
    order: -1;
  }

  .hero__book {
    width: 260px;
  }

  .why__inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .guide__inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .guide__book-img {
    max-width: 240px;
  }

  .author__inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .author__image-wrap {
    max-width: 360px;
    margin-inline: auto;
  }

  .presale__inner {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .presale__publishers,
  .presale__cta-wrap {
    align-items: center;
    justify-content: center;
  }

  .evidence__pillars {
    grid-template-columns: 1fr;
    max-width: 400px;
  }


}

/* ======================================================
   RESPONSIVE — MOBILE
====================================================== */
@media (max-width: 768px) {
  :root {
    --section-py: var(--section-py-sm);
  }

  /* Header mobile */
  .header__nav {
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--cream);
    border-bottom: 1px solid rgba(108,90,165,0.10);
    padding: 24px;
    display: none;
    box-shadow: 0 8px 24px rgba(17,17,17,0.10);
  }

  .header__nav.is-open {
    display: block;
  }

  .header__nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
  }

  .header__nav-link {
    display: block;
    padding: 12px 16px;
    font-size: 1rem;
    border-radius: var(--radius-sm);
  }

  .header__hamburger {
    display: flex;
  }

  .header__cta {
    display: none;
  }

  /* Hero mobile */
  .hero {
    padding: 48px 0 64px;
  }

  .hero__book {
    width: 220px;
  }

  .hero__ctas {
    flex-direction: column;
    align-items: center;
  }

  .hero__ctas .btn {
    width: 100%;
    justify-content: center;
  }

  /* Content grid mobile */
  .content-grid {
    grid-template-columns: 1fr;
  }

  .for-whom__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Evidence mobile */
  .evidence__pillars {
    grid-template-columns: 1fr;
  }

  /* Footer mobile */
  .footer__inner {
    flex-direction: column;
    gap: 24px;
  }

  .footer__nav-list {
    flex-direction: column;
    gap: 8px;
  }

  .footer__links {
    flex-direction: column;
    gap: 8px;
  }

  .footer__bottom-inner {
    flex-direction: column;
    text-align: center;
    gap: 8px;
  }

  /* Social actions mobile */
  .social__actions {
    flex-direction: column;
    align-items: center;
  }

  .social__actions .btn {
    width: 100%;
    max-width: 340px;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .section-title {
    font-size: 1.8rem;
  }

  .hero__title {
    font-size: 2rem;
  }

  .quote-block {
    padding: 28px 24px 28px 28px;
  }

  .author__image-deco {
    display: none;
  }

  .presale__cta-wrap .btn--xlarge {
    font-size: 0.9rem;
    padding: 16px 28px;
    text-align: center;
    justify-content: center;
    width: 100%;
  }
}