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

:root {
  --gold: #C9A84C;
  --gold-light: #E8C97A;
  --gold-dark: #9A7A30;
  --dark: #0D0D0D;
  --dark-2: #1A1A1A;
  --dark-3: #252525;
  --dark-4: #2E2E2E;
  --mid: #4A4A4A;
  --light: #F5F0E8;
  --light-2: #FAF7F2;
  --white: #FFFFFF;
  --text-dark: #1A1A1A;
  --text-mid: #555555;
  --text-light: #CCCCCC;
  --danger: #C0392B;
  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans: 'Inter', system-ui, sans-serif;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 4px 24px rgba(0,0,0,0.12);
  --shadow-lg: 0 12px 48px rgba(0,0,0,0.2);
  --shadow-gold: 0 8px 32px rgba(201,168,76,0.25);
  --transition: 0.3s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  color: var(--text-dark);
  background: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
}

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

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

/* ══════════════════════════════════════════
   UTILITIES
══════════════════════════════════════════ */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  border: 1px solid var(--gold);
  padding: 5px 14px;
  border-radius: 50px;
  margin-bottom: 18px;
}

.section-tag--gold {
  background: var(--gold);
  color: var(--dark);
  border-color: var(--gold);
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3.5vw, 2.6rem);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 20px;
}

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

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

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto 48px;
}

.highlight {
  color: var(--gold);
}

.highlight-light {
  color: var(--gold-light);
}

/* ══════════════════════════════════════════
   HEADER
══════════════════════════════════════════ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(13, 13, 13, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(201, 168, 76, 0.15);
  padding: 16px 0;
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header__logo {
  display: flex;
  align-items: center;
  height: 50px;
}

.header__logo-img {
  height: 50px;
  width: auto;
  filter: brightness(1.1);
  transition: filter var(--transition);
}

.header__logo:hover .header__logo-img {
  filter: brightness(1.3);
}

.header__nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

.header__cta {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--gold);
  padding: 10px 20px;
  border: 1px solid var(--gold);
  border-radius: 50px;
  transition: all var(--transition);
}

.header__cta:hover {
  background: var(--gold);
  color: var(--dark);
}

/* ══════════════════════════════════════════
   BUTTONS
══════════════════════════════════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1rem;
  padding: 16px 36px;
  border-radius: 50px;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  text-align: center;
  letter-spacing: 0.02em;
}

.btn--primary {
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: var(--dark);
  box-shadow: var(--shadow-gold);
}

.btn--primary:hover {
  background: linear-gradient(135deg, var(--gold-light), var(--gold));
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(201,168,76,0.4);
}

.btn--cta {
  background: linear-gradient(135deg, #E8C97A, #C9A84C, #9A7A30);
  color: var(--dark);
  font-size: 1.1rem;
  padding: 20px 40px;
  box-shadow: 0 8px 32px rgba(201,168,76,0.35);
  animation: pulse-gold 2.5s ease-in-out infinite;
}

.btn--cta:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 16px 48px rgba(201,168,76,0.5);
  animation: none;
}

.btn--full {
  width: 100%;
  display: flex;
}

.btn--hero {
  font-size: 1.05rem;
  padding: 18px 42px;
}

.btn--large {
  font-size: 1.15rem;
  padding: 22px 52px;
}

@keyframes pulse-gold {
  0%, 100% { box-shadow: 0 8px 32px rgba(201,168,76,0.35); }
  50% { box-shadow: 0 8px 48px rgba(201,168,76,0.6); }
}

/* ══════════════════════════════════════════
   HERO
══════════════════════════════════════════ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: url('assets/hero-house.jpg') center center / cover no-repeat;
  text-align: center;
  overflow: hidden;
  margin-top: 70px;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    160deg,
    rgba(0,0,0,0.88) 0%,
    rgba(13,13,13,0.82) 50%,
    rgba(30,20,0,0.75) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 780px;
  padding: 80px 24px 120px;
}

.hero__badge {
  display: inline-block;
  background: var(--gold);
  color: var(--dark);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 6px 18px;
  border-radius: 50px;
  margin-bottom: 28px;
  animation: fadeInDown 0.8s ease both;
}

.hero__title {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 20px;
  animation: fadeInUp 0.9s ease 0.1s both;
}

.hero__title-small {
  font-family: var(--font-serif);
  font-size: clamp(1.2rem, 2.5vw, 1.6rem);
  font-weight: 400;
  color: var(--gold-light);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.hero__title-main {
  font-family: var(--font-serif);
  font-size: clamp(3.5rem, 9vw, 7rem);
  font-weight: 900;
  color: var(--white);
  line-height: 0.9;
  letter-spacing: -0.02em;
  text-shadow: 0 4px 24px rgba(0,0,0,0.5);
}

.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: rgba(255,255,255,0.85);
  margin-bottom: 28px;
  line-height: 1.6;
  animation: fadeInUp 0.9s ease 0.2s both;
}

.hero__divider {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
  margin: 0 auto 28px;
  border-radius: 2px;
  animation: fadeInUp 0.9s ease 0.3s both;
}

.hero__hook {
  font-size: clamp(0.95rem, 1.8vw, 1.1rem);
  color: rgba(255,255,255,0.8);
  margin-bottom: 36px;
  line-height: 1.8;
  animation: fadeInUp 0.9s ease 0.4s both;
}

.hero__hook strong {
  color: var(--white);
}

.hero__hook em {
  color: var(--gold-light);
  font-style: normal;
  font-weight: 600;
}

.hero__price-hint {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 20px;
  animation: fadeInUp 0.9s ease 0.6s both;
}

.hero__price-label {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.hero__price-value {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--gold-light);
}

.hero__scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}

.hero__scroll-indicator span {
  display: block;
  width: 24px;
  height: 24px;
  border-right: 2px solid var(--gold);
  border-bottom: 2px solid var(--gold);
  transform: rotate(45deg);
  animation: scroll-bounce 1.5s ease-in-out infinite;
  opacity: 0.7;
}

@keyframes scroll-bounce {
  0%, 100% { transform: rotate(45deg) translateY(0); opacity: 0.7; }
  50% { transform: rotate(45deg) translateY(6px); opacity: 1; }
}

/* ══════════════════════════════════════════
   PROBLEM
══════════════════════════════════════════ */
.problem {
  background: var(--light-2);
  padding: 100px 0;
}

.problem__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.problem__lead {
  font-size: 1.1rem;
  color: var(--text-mid);
  margin-bottom: 16px;
  line-height: 1.8;
}

.problem__body {
  font-size: 0.98rem;
  color: var(--text-mid);
  line-height: 1.8;
}

.problem__risks {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.risk-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: var(--white);
  border: 1px solid #E8E0D0;
  border-left: 4px solid var(--gold);
  padding: 18px 20px;
  border-radius: var(--radius);
  box-shadow: 0 2px 12px rgba(0,0,0,0.05);
  transition: transform var(--transition), box-shadow var(--transition);
}

.risk-card:hover {
  transform: translateX(4px);
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.risk-card__icon {
  font-size: 1.4rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.risk-card__text {
  font-size: 0.95rem;
  color: var(--text-mid);
  line-height: 1.6;
}

/* ══════════════════════════════════════════
   LEARN
══════════════════════════════════════════ */
.learn {
  background: var(--dark-2);
  padding: 100px 0;
}

.learn__header {
  text-align: center;
  margin-bottom: 64px;
}

.learn__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  margin-bottom: 60px;
}

.learn-item {
  display: flex;
  gap: 20px;
  background: var(--dark-3);
  border: 1px solid rgba(201,168,76,0.15);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: all var(--transition);
}

.learn-item:hover {
  border-color: rgba(201,168,76,0.4);
  background: var(--dark-4);
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}

.learn-item__number {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 900;
  color: rgba(201,168,76,0.2);
  line-height: 1;
  flex-shrink: 0;
  min-width: 52px;
}

.learn-item__content h3 {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--gold-light);
  margin-bottom: 8px;
  line-height: 1.4;
}

.learn-item__content p {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.7;
}

.learn__cta {
  text-align: center;
  background: linear-gradient(135deg, rgba(201,168,76,0.1), rgba(201,168,76,0.05));
  border: 1px solid rgba(201,168,76,0.2);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.learn__cta-text {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.7);
  margin-bottom: 8px;
}

.learn__cta-emphasis {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  color: var(--white);
}

.learn__cta-emphasis strong {
  color: var(--gold-light);
}

/* ══════════════════════════════════════════
   AUTHOR
══════════════════════════════════════════ */
.author {
  background: var(--light-2);
  padding: 100px 0;
}

.author__inner {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 72px;
  align-items: center;
}

.author__image-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.author__image-frame {
  position: relative;
  width: 280px;
  height: 340px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 3px solid var(--gold);
}

.author__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  filter: grayscale(15%);
}

.author__credentials {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
  max-width: 280px;
}

.credential {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--white);
  border: 1px solid #E8E0D0;
  border-radius: 8px;
  padding: 10px 16px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.credential__icon {
  font-size: 1.1rem;
}

.credential__text {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-dark);
}

.author__text {
  font-size: 1rem;
  color: var(--text-mid);
  line-height: 1.85;
  margin-bottom: 32px;
}

.author__pillars {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.pillar {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--white);
  border: 1px solid #E8E0D0;
  border-left: 4px solid var(--gold);
  padding: 16px 20px;
  border-radius: var(--radius);
  box-shadow: 0 2px 10px rgba(0,0,0,0.04);
}

.pillar__icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.pillar__content {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.pillar__content strong {
  font-size: 0.95rem;
  color: var(--text-dark);
}

.pillar__content span {
  font-size: 0.85rem;
  color: var(--text-mid);
}

/* ══════════════════════════════════════════
   AUDIENCE
══════════════════════════════════════════ */
.audience {
  background: var(--dark-2);
  padding: 100px 0;
}

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

.audience__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.audience-card {
  background: var(--dark-3);
  border: 1px solid rgba(201,168,76,0.15);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  text-align: center;
  transition: all var(--transition);
}

.audience-card:hover {
  border-color: rgba(201,168,76,0.4);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}

.audience-card__icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.audience-card p {
  font-size: 0.98rem;
  color: rgba(255,255,255,0.75);
  line-height: 1.7;
}

.audience-card p strong {
  color: var(--gold-light);
}

.audience__conclusion {
  text-align: center;
  background: linear-gradient(135deg, rgba(201,168,76,0.12), rgba(201,168,76,0.06));
  border: 1px solid rgba(201,168,76,0.25);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.audience__conclusion p {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--white);
  line-height: 1.6;
}

.audience__conclusion strong {
  color: var(--gold-light);
}

/* ══════════════════════════════════════════
   COST
══════════════════════════════════════════ */
.cost {
  background: linear-gradient(135deg, #1A0A00, #2E1800, #1A0A00);
  padding: 100px 0;
}

.cost__inner {
  text-align: center;
}

.cost__items {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin: 48px 0;
  flex-wrap: wrap;
}

.cost-item {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(201,168,76,0.2);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  max-width: 240px;
  text-align: center;
  flex: 1;
  min-width: 180px;
}

.cost-item__icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.cost-item p {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.7);
  line-height: 1.7;
}

.cost-item p strong {
  color: var(--gold-light);
  display: block;
}

.cost-item__arrow {
  font-size: 1.5rem;
  color: var(--gold);
  font-weight: 700;
  flex-shrink: 0;
}

.cost__conclusion {
  font-size: 1.2rem;
  color: rgba(255,255,255,0.8);
  margin-top: 8px;
}

/* ══════════════════════════════════════════
   OFFER
══════════════════════════════════════════ */
.offer {
  background: var(--dark);
  padding: 100px 0;
}

.offer__box {
  background: linear-gradient(145deg, var(--dark-3), var(--dark-4));
  border: 1px solid rgba(201,168,76,0.3);
  border-radius: var(--radius-lg);
  padding: 60px 48px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(0,0,0,0.5), inset 0 1px 0 rgba(201,168,76,0.1);
}

.offer__box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gold-dark), var(--gold), var(--gold-light), var(--gold), var(--gold-dark));
}

.offer__badge {
  position: absolute;
  top: 24px;
  right: 24px;
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: var(--dark);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  padding: 8px 18px;
  border-radius: 50px;
}

/* Book Mockup */
.book-mockup {
  display: flex;
  position: relative;
  filter: drop-shadow(0 20px 40px rgba(0,0,0,0.6));
}

.book-mockup__spine {
  width: 28px;
  background: linear-gradient(180deg, #7A5A20, #9A7A30, #7A5A20);
  border-radius: 4px 0 0 4px;
  flex-shrink: 0;
}

.book-mockup__cover {
  width: 200px;
  height: 280px;
  background: linear-gradient(145deg, #1A1200, #2E2000, #1A1200);
  border-radius: 0 8px 8px 0;
  border: 1px solid rgba(201,168,76,0.4);
  border-left: none;
  overflow: hidden;
  position: relative;
}

.book-mockup__cover::before {
  content: '';
  position: absolute;
  inset: 8px;
  border: 1px solid rgba(201,168,76,0.2);
  border-radius: 4px;
  pointer-events: none;
}

.book-mockup__cover-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding: 24px 20px;
  text-align: center;
  gap: 8px;
}

.book-mockup__key-icon {
  font-size: 2.5rem;
  margin-bottom: 4px;
}

.book-mockup__title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 900;
  color: var(--gold-light);
  line-height: 1.2;
  letter-spacing: 0.05em;
}

.book-mockup__subtitle {
  font-size: 0.65rem;
  color: rgba(201,168,76,0.6);
  line-height: 1.4;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.book-mockup__author {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.5);
  margin-top: 8px;
  font-style: italic;
}

/* Offer Details */
.offer__title {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 24px;
}

.offer__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 32px;
}

.offer__list li {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.75);
  display: flex;
  align-items: center;
  gap: 8px;
}

.offer__pricing {
  margin-bottom: 28px;
}

.offer__price-compare {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 8px;
}

.offer__price-old {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.35);
  text-decoration: line-through;
}

.offer__price-tag {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.55);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.offer__price-main {
  display: flex;
  align-items: flex-start;
  gap: 4px;
  line-height: 1;
  margin-bottom: 8px;
}

.offer__price-currency {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--gold-light);
  margin-top: 8px;
}

.offer__price-value {
  font-family: var(--font-serif);
  font-size: 5rem;
  font-weight: 900;
  color: var(--gold-light);
  line-height: 1;
}

.offer__price-cents {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--gold-light);
  margin-top: 12px;
}

.offer__price-note {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.4);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.offer__guarantee {
  text-align: center;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.45);
  margin-top: 14px;
}

.offer__urgency {
  text-align: center;
  font-size: 0.88rem;
  color: var(--gold);
  margin-top: 8px;
  font-weight: 600;
}

/* ══════════════════════════════════════════
   CLOSING
══════════════════════════════════════════ */
.closing {
  background: linear-gradient(160deg, #0A0A0A, #1A1200, #0A0A0A);
  padding: 120px 0;
  text-align: center;
}

.closing__inner {
  max-width: 680px;
  margin: 0 auto;
}

.closing__icon {
  font-size: 4rem;
  margin-bottom: 28px;
  display: block;
}

.closing__title {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1.3;
  margin-bottom: 24px;
}

.closing__text {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.65);
  line-height: 1.85;
  margin-bottom: 40px;
}

.closing__text strong {
  color: var(--white);
}

.closing__statement {
  margin-bottom: 48px;
}

.closing__statement p {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.4;
}

.closing__statement-bold {
  font-size: 2.4rem !important;
  color: var(--gold-light) !important;
  font-weight: 900;
}

/* ══════════════════════════════════════════
   FOOTER
══════════════════════════════════════════ */
.footer {
  background: var(--dark);
  border-top: 1px solid rgba(201,168,76,0.15);
  padding: 40px 0;
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 4px;
}

.footer__key {
  font-size: 1.4rem;
}

.footer__name {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--gold-light);
}

.footer__author {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.45);
}

.footer__copy {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.25);
}

/* ══════════════════════════════════════════
   ANIMATIONS
══════════════════════════════════════════ */
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* ══════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════ */
@media (max-width: 900px) {
  .problem__inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

  .author__inner {
    grid-template-columns: 1fr;
    gap: 48px;
    text-align: center;
  }

  .author__image-wrap {
    align-items: center;
  }

  .author__pillars {
    align-items: stretch;
  }

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

  .offer__box {
    grid-template-columns: 1fr;
    text-align: center;
    padding: 48px 28px;
  }

  .book-mockup {
    justify-content: center;
  }

  .offer__price-main {
    justify-content: center;
  }

  .offer__price-compare {
    justify-content: center;
  }

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

  .cost-item__arrow {
    transform: rotate(90deg);
  }
}

@media (max-width: 600px) {
  .hero__content {
    padding: 60px 20px 100px;
  }

  .hero__title-main {
    font-size: 3.5rem;
  }

  .problem,
  .learn,
  .author,
  .audience,
  .cost,
  .offer,
  .closing {
    padding: 72px 0;
  }

  .offer__box {
    padding: 36px 20px;
  }

  .offer__price-value {
    font-size: 4rem;
  }

  .btn--large {
    font-size: 1rem;
    padding: 18px 32px;
  }
}