/* ═══════════════════════════════════════════════
   LEXIBOOKS — style.css
   Fonts: League Spartan, Anton
   Colors: #0D5476 · #FEFAF0 · #89CFF0 · #E5F0FE
═══════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=League+Spartan:wght@300;400;500;600;700;800;900&family=Anton&display=swap');

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

:root {
  --navy: #0D5476;
  --cream: #FEFAF0;
  --sky: #89CFF0;
  --pale-blue: #E5F0FE;
  --navy-deep: #083d57;
  --navy-mid: #1a6d96;
  --sky-dark: #5cb8e8;
  --ink: #0a1f2e;

  --font-display: 'Anton', sans-serif;
  --font-body: 'League Spartan', sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background: var(--cream);
  color: var(--ink);
  overflow-x: hidden;
}

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

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

/* ── SCROLL REVEAL ── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.75s ease, transform 0.75s ease;
}

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

/* ════════════════════════════════
   NAV
════════════════════════════════ */
nav {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 4rem;
  background: rgba(254, 250, 240, 0.93);
  backdrop-filter: blur(10px);
  border-bottom: 2px solid transparent;
  transition: border-color 0.3s, box-shadow 0.3s;
}

nav.scrolled {
  border-color: var(--sky);
  box-shadow: 0 2px 24px rgba(13, 84, 118, 0.1);
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.6rem;
  letter-spacing: 0.06em;
  color: var(--navy);
}

.nav-logo span {
  color: var(--sky-dark);
}

.nav-links {
  display: flex;
  gap: 2.2rem;
  list-style: none;
}

.nav-links a {
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--navy);
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--sky-dark);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-insta {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--navy);
  transition: background 0.2s, transform 0.2s;
}

.nav-insta:hover {
  background: var(--sky-dark);
  transform: scale(1.08);
}

.nav-auth-btn {
  border: 1px solid rgba(13, 84, 118, 0.12);
  background: transparent;
  color: var(--navy);
  border-radius: 999px;
  padding: 0.52rem 0.85rem;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  transition: transform 0.2s, background 0.2s, color 0.2s;
}

.nav-auth-btn:hover {
  background: rgba(137, 207, 240, 0.18);
  transform: translateY(-1px);
}

.nav-auth-btn-secondary {
  background: var(--navy);
  color: var(--cream);
}

.nav-auth-btn.ghost {
  background: #fff4f4;
  color: #9c2e42;
  border-color: rgba(156, 46, 66, 0.16);
}

.nav-cart {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  border: 1px solid rgba(13, 84, 118, 0.12);
  background: var(--navy);
  color: var(--cream);
  border-radius: 999px;
  padding: 0.55rem 0.85rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  transition: transform 0.2s, background 0.2s;
}

.nav-cart:hover {
  background: var(--sky-dark);
  transform: translateY(-1px);
}

.cart-count {
  display: inline-grid;
  place-items: center;
  min-width: 1.45rem;
  height: 1.45rem;
  border-radius: 999px;
  background: var(--cream);
  color: var(--navy);
  font-size: 0.72rem;
  font-weight: 800;
}

.nav-insta svg {
  width: 15px;
  height: 15px;
  fill: var(--cream);
}

/* ════════════════════════════════
   HERO
════════════════════════════════ */
.hero {
  min-height: 100vh;
  display: grid;
  place-items: center;
  position: relative;
  overflow: hidden;
  background: var(--navy-deep);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('https://static.wixstatic.com/media/11062b_c94608713cee4f658af8a9dd03e696eff000.jpg/v1/fill/w_1541,h_867,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/11062b_c94608713cee4f658af8a9dd03e696eff000.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.2;
  mix-blend-mode: luminosity;
}

/* blue tint overlay */
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg,
      rgba(13, 84, 118, 0.55) 0%,
      rgba(137, 207, 240, 0.18) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 2rem;
  max-width: 960px;
  animation: fadeUp 1s ease both;
}

.hero-eyebrow {
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--sky);
  margin-bottom: 1.5rem;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 8vw, 7.5rem);
  line-height: 0.95;
  letter-spacing: 0.03em;
  color: var(--cream);
  margin-bottom: 1.6rem;
}

.hero-title em {
  font-family: var(--font-display);
  font-style: normal;
  color: var(--sky);
  display: block;
}

.hero-sub {
  font-size: clamp(0.95rem, 1.6vw, 1.15rem);
  font-weight: 300;
  color: rgba(254, 250, 240, 0.65);
  line-height: 1.75;
  max-width: 540px;
  margin: 0 auto 2.8rem;
  letter-spacing: 0.02em;
}

.hero-cta {
  display: inline-block;
  padding: 1rem 2.8rem;
  background: var(--sky);
  color: var(--navy-deep);
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  border-radius: 2px;
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
}

.hero-cta:hover {
  background: var(--cream);
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(137, 207, 240, 0.3);
}

.hero-scroll {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: rgba(137, 207, 240, 0.5);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.hero-scroll-line {
  width: 1px;
  height: 44px;
  background: linear-gradient(to bottom, transparent, var(--sky));
  animation: scrollPulse 2s ease-in-out infinite;
}

/* ════════════════════════════════
   DESERT / STATS
════════════════════════════════ */
.desert {
  padding: 8rem 4rem;
  background: var(--pale-blue);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.desert::before {
  content: '?';
  font-family: var(--font-display);
  font-size: 24rem;
  color: rgba(13, 84, 118, 0.04);
  position: absolute;
  top: -4rem;
  left: 50%;
  transform: translateX(-50%);
  pointer-events: none;
  line-height: 1;
}

.desert-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 3.4rem);
  color: var(--navy);
  max-width: 740px;
  margin: 0 auto 3.5rem;
  line-height: 1.1;
  letter-spacing: 0.02em;
}

.stats {
  display: flex;
  gap: 2rem;
  justify-content: center;
  flex-wrap: wrap;
  max-width: 860px;
  margin: 0 auto 2.5rem;
}

.stat {
  background: var(--navy);
  color: var(--cream);
  padding: 2.5rem 2.8rem;
  border-radius: 3px;
  flex: 1;
  min-width: 260px;
  position: relative;
  overflow: hidden;
}

.stat::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--sky);
}

.stat-num {
  font-family: var(--font-display);
  font-size: 4.5rem;
  color: var(--sky);
  line-height: 1;
  margin-bottom: 0.6rem;
  letter-spacing: 0.02em;
}

.stat-desc {
  font-size: 0.9rem;
  font-weight: 400;
  line-height: 1.65;
  opacity: 0.8;
  letter-spacing: 0.01em;
}

.desert-source {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--navy);
  opacity: 0.5;
  max-width: 520px;
  margin: 0 auto;
  letter-spacing: 0.03em;
}

/* ════════════════════════════════
   MARQUEE
════════════════════════════════ */
.marquee-wrap {
  background: var(--navy);
  padding: 1.1rem 0;
  overflow: hidden;
  white-space: nowrap;
  border-top: 1px solid rgba(137, 207, 240, 0.2);
  border-bottom: 1px solid rgba(137, 207, 240, 0.2);
}

.marquee-track {
  display: inline-flex;
  gap: 0;
  animation: marquee 30s linear infinite;
}

.marquee-item {
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.06em;
  color: var(--cream);
  padding: 0 2.5rem;
  opacity: 0.85;
}

.marquee-dot {
  color: var(--sky);
  font-size: 1.2rem;
  padding: 0 0.3rem;
  opacity: 0.6;
}

/* ════════════════════════════════
   ABOUT
════════════════════════════════ */
.about-wrapper {
  background: var(--cream);
}

.about {
  padding: 8rem 4rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

.about-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--sky-dark);
  margin-bottom: 0.8rem;
}

.about-accent {
  width: 56px;
  height: 3px;
  background: var(--navy);
  margin-bottom: 1.6rem;
}

.about-title,
.about-text-big {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3vw, 2.8rem);
  color: var(--navy);
  line-height: 1.1;
  margin-bottom: 1.6rem;
  letter-spacing: 0.02em;
}

.about-text {
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.8;
  color: rgba(10, 31, 46, 0.68);
  margin-bottom: 1rem;
  letter-spacing: 0.01em;
}

.about-text-small {
  font-size: 0.9rem;
  font-weight: 400;
  line-height: 1.75;
  color: rgba(10, 31, 46, 0.68);
  margin-bottom: 0.8rem;
  letter-spacing: 0.01em;
  align-self: center;
}

.about-visual {
  height: 500px;
  border-radius: 3px;
  overflow: hidden;
  position: relative;
}

.about-visual-inner {
  width: 100%;
  height: 100%;
  background: whitesmoke;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 1.2rem;
  text-align: center;
  padding: 2rem;
  border: rgb(255, 222, 89) 7px solid;
}

.about-visual-icon {
  font-size: 5rem;
  opacity: 0.35;
}

.about-visual-text {
  font-family: var(--font-display);
  font-size: 1.4rem;
  letter-spacing: 0.08em;
  color: var(--cream);
  opacity: 0.6;
}

.highlight {
  background: rgb(255, 222, 89);
  padding: 0 0.2em;
  border-radius: 3px;
  display: inline;
  box-decoration-break: clone;
  line-height: 1;
}

/* ════════════════════════════════
   HOW IT WORKS
════════════════════════════════ */
.how {
  background: var(--pale-blue);
  padding: 8rem 4rem;
  text-align: center;
}

.section-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--navy);
  margin-bottom: 1rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.4rem);
  color: var(--navy);
  margin-bottom: 1rem;
  letter-spacing: 0.03em;
}

.section-sub {
  font-size: 1rem;
  font-weight: 400;
  color: var(--navy);
  max-width: 580px;
  margin: 0 auto 4rem;
  line-height: 1.75;
  letter-spacing: 0.01em;
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
}

.step {
  background: rgba(137, 207, 240, 0.06);
  border: 1px solid rgba(137, 207, 240, 0.15);
  border-radius: 3px;
  padding: 2.8rem 1.8rem;
  transition: background 0.3s, transform 0.3s, border-color 0.3s;
  position: relative;
  overflow: hidden;
}

.step::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 0;
  background: var(--navy);
  transition: height 0.3s;
  opacity: 0.15;
}

.step:hover {
  background: rgba(137, 207, 240, 0.1);
  border-color: rgba(137, 207, 240, 0.35);
  transform: translateY(-8px);
}

.step:hover::after {
  height: 4px;
}

.step-num {
  font-family: var(--font-display);
  font-size: 3.2rem;
  color: var(--navy);
  margin-bottom: 1rem;
  display: block;
  opacity: 0.7;
  letter-spacing: 0.04em;
}

.step-name {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--navy);
  margin-bottom: 0.8rem;
}

.step-desc {
  font-size: 0.88rem;
  font-weight: 400;
  color: var(--navy);
  line-height: 1.7;
}

/* ════════════════════════════════
   BOOKS
════════════════════════════════ */
.books {
  padding: 8rem 4rem;
  background: var(--pale-blue);
}

.books-header {
  text-align: center;
  margin-bottom: 4rem;
}

.books-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.4rem);
  color: var(--navy);
  letter-spacing: 0.03em;
}

.books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.book-card {
  background: var(--cream);
  border-radius: 3px;
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
  cursor: pointer;
  border: 1px solid rgba(13, 84, 118, 0.08);
}

.book-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 24px 48px rgba(13, 84, 118, 0.15);
}

.book-cover {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  background: var(--pale-blue);
}

.book-info {
  padding: 1.2rem;
}

.book-genre {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--sky-dark);
  margin-bottom: 0.4rem;
}

.book-title {
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.3;
  margin-bottom: 0.5rem;
}

.book-quote {
  font-size: 0.76rem;
  font-weight: 400;
  font-style: italic;
  color: rgba(10, 31, 46, 0.5);
  line-height: 1.55;
}

.add-cart-btn {
  width: 100%;
  margin-top: 1rem;
  border: none;
  border-radius: 999px;
  background: var(--navy);
  color: var(--cream);
  padding: 0.65rem 0.9rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  cursor: pointer;
  transition: transform 0.2s, background 0.2s;
}

.add-cart-btn:hover {
  background: var(--sky-dark);
  transform: translateY(-2px);
}

.cart-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(8, 22, 33, 0.42);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
  z-index: 120;
}

.cart-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

.cart-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: min(420px, 100vw);
  height: 100vh;
  background: var(--cream);
  border-left: 1px solid rgba(13, 84, 118, 0.12);
  box-shadow: -18px 0 40px rgba(8, 22, 33, 0.16);
  transform: translateX(110%);
  transition: transform 0.25s ease;
  z-index: 130;
  display: flex;
  flex-direction: column;
}

.cart-drawer.open {
  transform: translateX(0);
}

.cart-drawer-header {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 1.2rem 1rem;
  border-bottom: 1px solid rgba(13, 84, 118, 0.1);
}

.cart-label {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--sky-dark);
  margin-bottom: 0.35rem;
}

.cart-title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--navy);
  letter-spacing: 0.04em;
}

.cart-close {
  width: 2rem;
  height: 2rem;
  border-radius: 999px;
  border: 1px solid rgba(13, 84, 118, 0.12);
  background: transparent;
  color: var(--navy);
  font-size: 1.1rem;
  cursor: pointer;
}

.cart-items {
  flex: 1;
  overflow-y: auto;
  padding: 1rem 1.2rem;
}

.cart-item {
  border: 1px solid rgba(13, 84, 118, 0.12);
  border-radius: 14px;
  padding: 0.95rem;
  background: #fff;
  margin-bottom: 0.75rem;
}

.cart-item-genre {
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--sky-dark);
  margin-bottom: 0.25rem;
}

.cart-item-title {
  font-size: 0.95rem;
  color: var(--navy);
  line-height: 1.35;
}

.cart-item-actions {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin-top: 0.9rem;
}

.qty-btn,
.remove-btn {
  border-radius: 999px;
  border: 1px solid rgba(13, 84, 118, 0.16);
  background: var(--pale-blue);
  color: var(--navy);
  padding: 0.35rem 0.55rem;
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
}

.qty-value {
  min-width: 1.5rem;
  text-align: center;
  font-weight: 700;
  color: var(--navy);
}

.remove-btn {
  margin-left: auto;
  background: #fff4f4;
  color: #9c2e42;
  border-color: rgba(156, 46, 66, 0.18);
}

.cart-footer {
  padding: 1rem 1.2rem 1.2rem;
  border-top: 1px solid rgba(13, 84, 118, 0.1);
  background: rgba(229, 240, 254, 0.35);
}

.cart-total-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.45rem;
  color: var(--navy);
  font-size: 0.95rem;
}

.cart-note {
  font-size: 0.78rem;
  color: rgba(10, 31, 46, 0.65);
  line-height: 1.45;
  margin-bottom: 0.9rem;
}

.cart-checkout {
  width: 100%;
  border: none;
  border-radius: 999px;
  background: var(--navy);
  color: var(--cream);
  padding: 0.75rem 1rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  cursor: pointer;
}

.cart-empty {
  color: rgba(10, 31, 46, 0.65);
  font-size: 0.95rem;
  line-height: 1.6;
}

.auth-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(8, 22, 33, 0.45);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
  z-index: 140;
}

.auth-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

.auth-modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.96);
  width: min(420px, calc(100vw - 1.5rem));
  background: var(--cream);
  border-radius: 18px;
  box-shadow: 0 25px 55px rgba(8, 22, 33, 0.22);
  padding: 1.2rem;
  z-index: 150;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
}

.auth-modal.open {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, -50%) scale(1);
}

.auth-close {
  position: absolute;
  top: 0.7rem;
  right: 0.7rem;
  border: none;
  background: transparent;
  font-size: 1.35rem;
  cursor: pointer;
  color: var(--navy);
}

.auth-header {
  margin-bottom: 1rem;
}

.auth-copy {
  font-size: 0.92rem;
  color: rgba(10, 31, 46, 0.65);
  line-height: 1.5;
}

.auth-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.auth-tab {
  flex: 1;
  border: 1px solid rgba(13, 84, 118, 0.12);
  background: transparent;
  border-radius: 999px;
  padding: 0.55rem 0.65rem;
  color: var(--navy);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
}

.auth-tab.active {
  background: var(--navy);
  color: var(--cream);
}

.auth-form {
  display: none;
}

.auth-form.active {
  display: grid;
  gap: 0.8rem;
}

.auth-form label {
  display: grid;
  gap: 0.35rem;
  color: var(--navy);
  font-size: 0.88rem;
  font-weight: 600;
}

.auth-form input {
  border: 1px solid rgba(13, 84, 118, 0.14);
  border-radius: 12px;
  background: #fff;
  color: var(--navy);
  padding: 0.75rem 0.85rem;
  font: inherit;
}

.auth-submit {
  border: none;
  border-radius: 999px;
  padding: 0.75rem 1rem;
  background: var(--navy);
  color: var(--cream);
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-weight: 700;
  font-size: 0.75rem;
}

.auth-message {
  min-height: 1.1em;
  color: var(--navy);
  font-size: 0.82rem;
}

/* ════════════════════════════════
   QUESTIONNAIRE CTA
════════════════════════════════ */
.cta-section {
  background: var(--cream);
  padding: 7rem 4rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: 'READ';
  font-family: var(--font-display);
  font-size: 18rem;
  color: rgba(13, 84, 118, 0.04);
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  white-space: nowrap;
  letter-spacing: 0.1em;
}

.cta-eyebrow {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--sky-dark);
  margin-bottom: 1rem;
}

.cta-sub {
  font-size: 1.1rem;
  font-weight: 400;
  color: rgba(10, 31, 46, 0.55);
  margin-bottom: 2rem;
  letter-spacing: 0.02em;
}

.cta-big {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 5.5rem);
  color: var(--navy);
  line-height: 1;
  letter-spacing: 0.05em;
  position: relative;
  z-index: 1;
}

.cta-big-sub {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 3.5rem);
  color: var(--sky-dark);
  letter-spacing: 0.05em;
  margin: 0.4rem 0 1.5rem;
  position: relative;
  z-index: 1;
}

.cta-badge {
  display: inline-block;
  padding: 0.6rem 1.8rem;
  border: 2px solid var(--navy);
  color: var(--navy);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  border-radius: 100px;
  position: relative;
  z-index: 1;
  transition: background 0.2s, color 0.2s;
}

.cta-badge:hover {
  background: var(--navy);
  color: var(--cream);
}

/* ════════════════════════════════
   DONATE
════════════════════════════════ */
.donate {
  background: var(--navy);
  padding: 7rem 4rem;
  text-align: center;
  color: var(--cream);
  position: relative;
  overflow: hidden;
}

.donate::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 120%, rgba(137, 207, 240, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.donate-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 3rem);
  margin-bottom: 1rem;
  letter-spacing: 0.03em;
  position: relative;
}

.donate-sub {
  font-size: 1rem;
  font-weight: 400;
  opacity: 0.65;
  max-width: 580px;
  margin: 0 auto 3rem;
  line-height: 1.8;
  letter-spacing: 0.01em;
  position: relative;
}

.donate-contact {
  font-size: 0.92rem;
  font-weight: 500;
  opacity: 0.7;
  line-height: 2.2;
  position: relative;
}

.donate-contact a {
  color: var(--sky);
  transition: opacity 0.2s;
}

.donate-contact a:hover {
  opacity: 0.8;
  text-decoration: underline;
}

/* ════════════════════════════════
   FOOTER
════════════════════════════════ */
footer {
  background: var(--navy-deep);
  padding: 1.8rem 4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: rgba(254, 250, 240, 0.35);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  border-top: 1px solid rgba(137, 207, 240, 0.1);
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.08em;
  color: rgba(254, 250, 240, 0.45);
}

/* ════════════════════════════════
   KEYFRAMES
════════════════════════════════ */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(28px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes marquee {
  from {
    transform: translateX(0);
  }

  to {
    transform: translateX(-50%);
  }
}

@keyframes scrollPulse {

  0%,
  100% {
    opacity: 0.25;
  }

  50% {
    opacity: 0.7;
  }
}

/* ════════════════════════════════
   RESPONSIVE
════════════════════════════════ */
@media (max-width: 900px) {
  nav {
    padding: 1rem 1.5rem;
  }

  .nav-links {
    display: none;
  }

  .about {
    grid-template-columns: 1fr;
    gap: 3rem;
    padding: 5rem 1.5rem;
  }

  .about-visual {
    height: 280px;
  }

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

  .desert,
  .how,
  .books,
  .cta-section,
  .donate {
    padding: 5rem 1.5rem;
  }

  .hero {
    min-height: 90vh;
  }
}

@media (max-width: 580px) {
  .steps {
    grid-template-columns: 1fr;
  }

  footer {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
    padding: 1.5rem;
  }
}