/* =========================================================
  BASE E STRUTTURA GENERALE
========================================================= */
html {
  overflow-y: scroll;
  scroll-behavior: smooth;
}

body {
  font-family: 'Space Grotesk', 'Poppins', sans-serif;
  margin: 0;
  background-color: #1a1a1a;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main {
  flex-grow: 1;
}


/* =========================================================
  TOP BAR & MENU
========================================================= */
.top-bar {
  width: 100%;
  height: 7vw;
  min-height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 5vw;
  box-sizing: border-box;
  background-color: #000;
  box-shadow: 1px 1rem 4rem 3px rgba(0, 0, 0, 0.4);
  color: aliceblue;
  position: relative;
  z-index: 1000;
}

body.overlay-open .top-bar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
}

body.overlay-open {
    overflow: hidden !important; 
    height: 100vh;
    touch-action: none; 
    touch-action: none;
    overscroll-behavior: contain;
}

.hamburger-menu {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 30px;
  height: 30px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 110;
  padding: 0;
}

.hamburger-menu .bar {
  display: block;
  width: 100%;
  height: 3px;
  background-color: aliceblue;
  border-radius: 2px;
  transition: transform 0.35s ease-in-out, opacity 0.35s ease-in-out;
  margin: 2px 0;
}

.hamburger-menu:hover .bar {
  background-color: #e2e2e2;
}

.hamburger-menu.active .bar:nth-child(1) {
  transform: translateY(7px) rotate(135deg);
}

.hamburger-menu.active .bar:nth-child(2) {
  opacity: 0;
}

.hamburger-menu.active .bar:nth-child(3) {
  transform: translateY(-7px) rotate(-135deg);
}

.logo-container {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  padding: 0;
}

.logo-link {
  display: block;
  height: 6.5vw;
  min-height: 40px;
  width: 250px;
}

.logo-image {
  width: 100%;
  height: 100%;
  background-image: url('https://www.loststructures.net/assets/images/loghi-senza-sfondo/ls-new-logo.png');
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
}

.nav-links {
  display: none;
}

.social-links {
  display: flex;
  align-items: center;
  gap: 2vw;
  margin-left: auto;
}

.social-links img {
  height: 1.6vw;
  width: auto;
  object-fit: contain;
}

/* =========================================================
  MENU OVERLAY
========================================================= */
.overlay {
  position: fixed;
  top: 7vw;
  left: 0;
  width: 100%;
  height: calc(100% - 7vw);
  background-color: rgba(0, 0, 0, 1);
  z-index: 999;
  overscroll-behavior: contain;
  opacity: 0;
  transform: translateY(-20px);
  pointer-events: none;
  transition: opacity 0.00 ease, transform 0.35s ease;
}

.overlay.open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.overlay-content {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  height: 100%;
  padding: 5vh 0;
  width: 100%;
}

.overlay-nav-links {
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
  flex-grow: 1;
}

.overlay-nav-links span {
  display: block;
  padding: 10px 0;
  position: relative;
}

.overlay-nav-links a {
  display: inline-block;
  font-size: 38px;
  color: #c2c2c2;
  transition: 0.3s;
  font-weight: 500;
  letter-spacing: 0.05em;
  cursor: pointer;
  text-decoration: none;
  padding: 10px 20px;
}

.overlay-nav-links span:not(:last-child)::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background-color: rgba(255, 255, 255, 0.15);
  margin: 10px auto 0;
  border-radius: 20px;
}

.overlay-nav-links a:hover,
.overlay-nav-links span:hover>a {
  color: #ffffff;
  transform: scale(1.05);
}

.overlay-social-links {
  display: none;
  justify-content: center;
  align-items: flex-end;
  gap: 30px;
  padding-bottom: 7vh;
}

.overlay-social-links img {
  height: 30px;
  width: auto;
}

/* =========================================================
  PRELOADER
========================================================= */
#preloader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #000;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.75s ease, visibility 0.75s ease;
  opacity: 1;
  visibility: visible;
}

.spinner {
  width: 50px;
  height: 50px;
  border: 4px solid rgba(255, 255, 255, 0.2);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

#preloader.hidden {
  opacity: 0;
  visibility: hidden;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* =========================================================
  INTRO SECTION
========================================================= */
.intro-section {
  text-align: center;
  color: #e0e0e0;
  background-color: #111;
  margin-bottom: 0;
  padding-top: 6vh;
  padding-bottom: 0.5vw;
}

.intro-section h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 600;
  letter-spacing: -0.5px;
  margin: 0 0 1rem 0;
  color: #ffffff;
  text-shadow: 0 2px 15px rgba(0, 0, 0, 0.5);
}

.intro-section .intro-subtitle {
  font-family: 'Poppins', sans-serif;
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  font-weight: 300;
  line-height: 1.6;
  max-width: 60ch;
  margin: 0 auto;
  color: #b0b0b0;
}

/* =========================================================
  SEPARATORE DI SEZIONE 
========================================================= */
.section-separator {
  padding-bottom: 5vw;
  text-align: center;
  position: relative;
}

.section-separator::after {
  content: '';
  display: inline-block;
  width: 80px;
  height: 2px;
  background-color: rgba(255, 255, 255, 0.25);
  border-radius: 2px;
}

.intro-section+.section-separator {
  background-color: #111;
}

.slideshow-wrapper+.section-separator {
  background-color: #111;
  padding-top: 10vw;
  padding-bottom: 4vw;
  display: none;
}

.promo-separator {
  padding-top: 10vh;
  padding-bottom: 10vh;
}

.book-promo-container+.section-separator,
.promo-separator {
  background-color: #1a1a1a;
}

/* =========================================================
   STILE SEPARATORE PROMO 
========================================================= */
.promo-section-divider {
	padding-top: 10vw;
	padding-bottom: 70px;
	text-align: center;
	position: relative;
	background: #111;
}

.promo-section-divider::after {
    content: '';
    display: inline-block;
    width: 80px;
    height: 2px;
    background-color: rgba(255, 255, 255, 0.25); 
    border-radius: 2px;
}

/* =========================================================
   FIX PER COERENZA FOOTER SU PAGINE ALBUM
========================================================= */
.footer-wave-top {
  background-color: #111;
}

/* =========================================================
  SLIDESHOW
========================================================= */
@keyframes kenBurns {
  0% {
    transform: scale(1);
  }

  100% {
    transform: scale(1.05);
  }
}

.slideshow-wrapper {
  position: relative;
  width: 100%;
  height: 75vh;
  min-height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #1a1a1a;
  overflow: hidden;
}

.shape-divider-top,
.shape-divider-bottom {
  position: absolute;
  left: 0;
  width: 100%;
  overflow: hidden;
  line-height: 0;
  z-index: 3;
}

.shape-divider-top {
  top: -1px;
}

.shape-divider-bottom {
  bottom: -1px;
  transform: rotate(180deg);
}

.shape-divider-top svg,
.shape-divider-bottom svg {
  position: relative;
  display: block;
  width: calc(100% + 1.3px);
  height: 45px;
}

.shape-divider-top .shape-fill {
  fill: #111;
}

.shape-divider-bottom .shape-fill {
  fill: #111;
}

.background-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.slideshow-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  animation: kenBurns 20s infinite alternate-reverse ease-in-out;
  transition: opacity 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.glass-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.25);
  backdrop-filter: blur(15px) saturate(110%);
  -webkit-backdrop-filter: blur(15px) saturate(110%);
  z-index: 2;
}

.slideshow-container {
  position: relative;
  width: 90%;
  max-width: clamp(1200px, 80vw, 2200px);
  height: 100%;
  z-index: 4;
}

.slides {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1.5s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1;
}

.slide.active {
  opacity: 1;
  z-index: 2;
}

.slide-inner {
  position: absolute;
  top: 65px;
  bottom: 65px;
  left: 0;
  right: 0;
  background-size: contain;
  background-position: center;
  background-repeat: no-repeat;
}

.slide-img-1 {
  background-image: url('https://www.loststructures.net/assets/images/foto-slideshow/foto1.jpg');
}

.slide-img-2 {
  background-image: url('https://www.loststructures.net/assets/images/foto-slideshow/foto2.jpg');
}

.slide-img-3 {
  background-image: url('https://www.loststructures.net/assets/images/foto-slideshow/foto3.JPG');
}

.slide-img-4 {
  background-image: url('https://www.loststructures.net/assets/images/foto-slideshow/foto4.jpg');
}

.slide-img-5 {
  background-image: url('https://www.loststructures.net/assets/images/foto-slideshow/foto5.jpg');
}

.slide-img-6 {
  background-image: url('https://www.loststructures.net/assets/images/foto-slideshow/foto6.jpg');
}

.slide-img-7 {
  background-image: url('https://www.loststructures.net/assets/images/foto-slideshow/foto7.jpg');
}

.slide-img-8 {
  background-image: url('https://www.loststructures.net/assets/images/foto-slideshow/foto8.jpg');
}

.slide-img-9 {
  background-image: url('https://www.loststructures.net/assets/images/foto-slideshow/foto9.jpg');
}

.slide-img-10 {
  background-image: url('https://www.loststructures.net/assets/images/foto-slideshow/foto10.jpg');
}

.slide-img-11 {
  background-image: url('https://www.loststructures.net/assets/images/foto-slideshow/foto11.JPG');
}

.slide-img-12 {
  background-image: url('https://www.loststructures.net/assets/images/foto-slideshow/foto12.JPG');
}

.slide-img-13 {
  background-image: url('https://www.loststructures.net/assets/images/foto-slideshow/foto13.jpg');
}

.slide-img-14 {
  background-image: url('https://www.loststructures.net/assets/images/foto-slideshow/foto14.jpg');
}


.slideshow-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background-color: rgba(10, 10, 10, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.15);
  cursor: pointer;
  z-index: 5;
  transition: background-color 0.3s, transform 0.2s;
  border-radius: 50%;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.slideshow-arrow:hover {
  background-color: rgba(0, 0, 0, 0.6);
  transform: translateY(-50%) scale(1.05);
}

.slideshow-arrow svg {
  width: 28px;
  height: 28px;
  stroke: #fff;
  stroke-width: 1.5;
}

.slideshow-arrow.prev {
  left: 2.5vw;
}

.slideshow-arrow.next {
  right: 2.5vw;
}

/* =========================================================
   STILI SEZIONE PROSSIMO VIDEO (Classi Isolate e Sicure)
========================================================= */

.promo-divider {
    width: 60%;
    max-width: 800px;
    height: 1px;
    background: rgba(255, 215, 0, 0.15); 
    margin: 100px auto; 
    border: none;
}

.next-video-promo {
	font-family: 'Space Grotesk', sans-serif;
	padding: 0 20px;
	background: #111;
}

.next-video-promo__container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 50px;
    padding-bottom: 5vw;
}

.next-video-promo__video-col {
    flex: 1.2; 
}

.next-video-promo__video-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    border-radius: 12px;
    overflow: hidden;
    background-color: #000;
    box-shadow: 0 25px 50px -12px rgba(0,0,0,0.75);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.next-video-promo__video-wrapper iframe,
.next-video-promo__video-wrapper .youtube-facade {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.next-video-promo__details-col {
    flex: 1;
    color: #fff;
}

.next-video-promo__subtitle {
    color: #ffd700;
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin: 0 0 15px 0;
}

.next-video-promo__title {
    font-size: clamp(2rem, 5vw, 2.8rem); 
    font-weight: 700;
    margin: 0 0 20px 0;
    line-height: 1.2;
}

.next-video-promo__description {
    color: #c2c2c2;
    font-size: 1rem;
    line-height: 1.6;
    max-width: 500px;
}

.promo-countdown {
    display: flex;
    gap: 15px;
    margin-top: 40px;
}

.promo-countdown__block {
    text-align: center;
    width: 85px;
    height: 85px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: rgba(25, 25, 25, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}

.promo-countdown__value {
    font-size: 2.2rem;
    font-weight: 600;
    color: #fff;
}

.promo-countdown__label {
    font-size: 0.75rem;
    color: #c2c2c2;
    text-transform: uppercase;
    letter-spacing: 1px;
}

@media (max-width: 950px) {
    
    .next-video-promo__container {
        flex-direction: column;
        text-align: center; 
    }

    .next-video-promo__video-col {
        width: 100%;
        flex: none; 
        margin-bottom: 40px;
    }

    .next-video-promo__details-col {
        width: 100%; 
        display: flex;
        flex-direction: column;
        align-items: center; 
    }

    .next-video-promo__description {
        margin: 0 auto; 
    }

    .promo-countdown {
        width: 100%;
        justify-content: center; 
        gap: 8px; 
    }

    .promo-countdown__block {
        width: auto;    
        flex: 1;        
        max-width: 80px; 
        height: 75px;   
        min-width: 0;   
    }

    .promo-countdown__value {
        font-size: 1.6rem; 
    }

    .promo-countdown__label {
        font-size: 0.6rem; 
        letter-spacing: 0;
    }
}

/* =========================================================
  SEZIONE PROMO LIBRO (HOMEPAGE)
========================================================= */
.home-promo-section {
  position: relative;
  background-color: #111;
  padding: 20vh 5vw;
  overflow: hidden;
  margin: 0;
  border: none;
  box-shadow: none;
}

.home-promo-content {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 5vw;
  max-width: 1100px;
  margin: 0 auto;
  align-items: center;
  position: relative;
  z-index: 2;
}

.home-promo-section .book-cover {
  transition-delay: 0.1s;
}

.home-promo-section .book-details {
  transition-delay: 0.2s;
}

.book-cover img {
  width: 100%;
  max-width: 380px;
  display: block;
  margin: 0 auto;
  border-radius: 8px;
  box-shadow: 0 25px 60px -10px rgba(0, 0, 0, 0.8);
  transform: none;
  transition: transform 0.5s ease, box-shadow 0.5s ease;
}

.book-cover:hover img {
  transform: scale(1.03);
  box-shadow: 0 35px 70px -10px rgba(0, 0, 0, 0.6);
}

.promo-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1rem;
  font-weight: 500;
  color: #888;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 10px;
}

.book-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 600;
  color: #f0f0f0;
  margin: 0 0 20px 0;
  line-height: 1.2;
}

.promo-description {
  font-family: 'Poppins', sans-serif;
  color: #b0b0b0;
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 55ch;
}

.promo-actions {
  display: flex;
  gap: 20px;
  align-items: center;
}

.promo-actions .btn {
  padding: 15px 30px;
  text-decoration: none;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 500;
  border-radius: 8px;
  transition: all 0.3s ease;
  border: 1px solid transparent;
}

.promo-actions .btn.btn-primary {
  background-color: wheat;
  color: #1a1a1a;
}

.promo-actions .btn.btn-primary:hover {
  background-color: #fff;
  transform: translateY(-2px);
}

.promo-actions .btn.btn-secondary {
  background-color: wheat;
  color: #1a1a1a;
}

.promo-actions .btn.btn-secondary:hover {
  background-color: #fff;
  transform: translateY(-2px);
}

.dynamic-book-cover {
  display: block;
  background-color: #2a2a2a;
  aspect-ratio: 2480 / 2948;
  width: 100%;
  height: auto;
}

/* =========================================================
  SEZIONE VIDEO
========================================================= */
.video-section {
  padding-top: 12vh 5vw 9vh 5vw;
  text-align: center;
  background-color: #1a1a1a;
  padding-right: 2vw;
  padding-left: 2vw;
}

.video-section h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 600;
  letter-spacing: -0.5px;
  margin: 0 0 5vh 0;
  color: #ffffff;
  text-shadow: 0 2px 15px rgba(0, 0, 0, 0.5);
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3.5vw;
  max-width: 1800px;
  margin: 0 auto;
}

.playlist-item {}

.playlist-title {
  margin: 0 0 12px 0;
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(0.9rem, 1.5vw, 1.1rem);
  font-weight: 500;
  letter-spacing: 0.5px;
  color: #c0c8d1;
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.video-card-link {
  display: block;
  text-decoration: none;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  overflow: hidden;
  position: relative;
  transition: transform 0.4s ease, box-shadow 0.4s ease;
  aspect-ratio: 16 / 9;
}

.video-card-link:hover {
  transform: scale(1.05);
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.7);
}

.video-card {
  width: 100%;
  height: 100%;
  background-color: #000;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  position: relative;
}

.video-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  background-image: var(--thumbnail-url);
  opacity: 0.8;
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.video-card-link:hover .video-card::before {
  opacity: 1;
  transform: scale(1.05);
}

/* =========================================================
  FOOTER
========================================================= */
.footer-section {
  position: relative;
  width: 100%;
  overflow: hidden;
  background-color: #000000;
  text-align: center;
  color: #a0b2c0;
  margin-top: 5vw;
}

.footer-wave-top {
  position: relative;
  width: 100%;
  height: 120px;
  overflow: hidden;
  line-height: 0;
  background-color: #1a1a1a;
}

.footer-wave-top svg {
  position: relative;
  display: block;
  width: calc(100% + 1.3px);
  height: 120px;
}

.footer-content {
  padding: 2vw 0 5vw 0;
  text-align: center;
  background-color: #000000;
}

.footer-content h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1rem, 1.2vw, 1.2rem);
  font-weight: 400;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: #a0b2c0;
  opacity: 0.7;
  margin: 0;
}

.footer-links {
  margin-top: 20px;
}

.footer-links a {
  font-family: 'Poppins', sans-serif;
  color: #888;
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.3s;
}

.footer-links a:hover {
  color: #fff;
  text-decoration: underline;
}

.developer-credit {
	font-size: 0.85rem;
	color: #888;
	font-family: sans-serif;
	padding-bottom: 4vw;
}

.developer-credit a {
    color: #fff; 
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.developer-credit a:hover {
    color: #ccc; 
    text-decoration: underline;
}

/* =========================================================
   ACCESSIBILITÀ, UX E PROTEZIONE IMMAGINI
========================================================= */
:focus-visible {
  outline: 3px solid wheat;
  outline-offset: 3px;
  border-radius: 4px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

img,
.logo-image,
.slide-inner,
.social-links img,
.overlay-social-links img {
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  -webkit-user-drag: none;
}

img:not(a img) {
  cursor: default;
}

.disable-user-interaction {
  pointer-events: none;
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  -webkit-user-drag: none;
}

.logo-container .logo-image,
.slide-inner,
.video-card::before {
  pointer-events: auto;
}

/* =========================================================
   SEZIONE CALL TO ACTION 
========================================================= */
.cta-section {
  background-color: #1a1a1a;
  padding-top: 0;
  padding-bottom: 2vw;
  text-align: center;
  position: relative;
}

.cta-content {
  max-width: 800px;
  margin: 0 auto;
}

.cta-icon {
  width: 48px;
  height: 48px;
  stroke: wheat;
  stroke-width: 1;
  margin-bottom: 30px;
  opacity: 0.7;
}

.cta-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2.2rem, 4vw, 3rem);
  font-weight: 600;
  color: #f5f5f5;
  margin: 0 0 20px 0;
  line-height: 1.2;
}

.cta-description {
  font-family: 'Poppins', sans-serif;
  color: #b0b0b0;
  line-height: 1.8;
  font-size: 1.1rem;
  max-width: 65ch;
  margin-right: 3vw;
  margin-left: 3vw;
  margin-bottom: 3.5vw;
}

.cta-action {
  display: inline-block;
}

.cta-link {
  display: block;
  text-decoration: none;
  transition: transform 0.3s ease;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 30px;
  margin-right: 3vw;
  margin-left: 3vw;
}

.cta-link:hover {
  transform: scale(1.05);
  border-color: rgba(255, 255, 255, 0.2);
}

.cta-link span {
  font-family: 'Poppins', sans-serif;
  font-size: 1rem;
  color: #a0a0a0;
  display: block;
  margin-bottom: 8px;
}

.cta-link strong {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.2rem, 3vw, 1.8rem);
  font-weight: 600;
  color: wheat;
  letter-spacing: 1px;
}

.cta-follow-up {
  font-family: 'Poppins', sans-serif;
  color: #a0a0a0;
  font-size: 1.1rem;
  line-height: 1.8;
  margin: 30px auto 0 auto;
  max-width: 65ch;
  display: block;
}

/* =========================================================
  MEDIA QUERIES (MOBILE)
========================================================= */
@media screen and (max-width: 1000px) {
  .top-bar {
    min-height: 55px;
    height: 19vw;
  }

  .logo-link {
    height: 17vw;
    min-height: 45px;
    width: 150px;
  }

  .hamburger-menu {
    width: 28px;
    height: 28px;
  }

  .hamburger-menu .bar {
    height: 2px;
  }

  .hamburger-menu.active .bar {
    height: 2px;
  }

  .hamburger-menu.active .bar:nth-child(1) {
    transform: translateY(6px) rotate(135deg);
  }

  .hamburger-menu.active .bar:nth-child(3) {
    transform: translateY(-6px) rotate(-135deg);
  }

  .nav-links,
  .social-links {
    display: none;
  }

  .overlay {
    top: 19vw;
    height: calc(100% - 19vw);
  }

  .overlay-nav-links a {
    font-size: 26px; 
    padding: 5px 10px; 
  }

  .overlay-nav-links span {
    padding: 10px 0;
  }

  .overlay-nav-links span:not(:last-child)::after {
    height: 2px;
    width: 40px;
    margin: 10px auto 0; 
  }

  .overlay-social-links {
    display: flex;
    padding-bottom: 5vh; 
  }

  .slideshow-wrapper {
    height: 50vh;
    min-height: 0;
  }

  .shape-divider-top svg,
  .shape-divider-bottom svg {
    height: 30px;
  }

  .glass-overlay {
    backdrop-filter: blur(25px) saturate(100%);
    -webkit-backdrop-filter: blur(25px) saturate(100%);
    background-color: rgba(0, 0, 0, 0.3);
  }

  .slideshow-container {
    width: 100%;
  }

  .slide-inner {
    top: 40px;
    bottom: 40px;
    left: 5%;
    right: 5%;
  }

  .slideshow-arrow {
    width: 38px;
    height: 38px;
  }

  .slideshow-arrow svg {
    width: 20px;
    height: 20px;
  }

  .slideshow-arrow.prev {
    left: 15px;
  }

  .slideshow-arrow.next {
    right: 15px;
  }

  .video-section {
    padding: 6vh 5vw;
  }

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

  .home-promo-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .book-cover img {
    margin-bottom: 5vh;
  }

  .book-cover:hover img {
    transform: none;
  }

  .promo-description {
    margin-left: auto;
    margin-right: auto;
  }

  .promo-actions {
    justify-content: center;
  }
}

@media screen and (max-width: 600px) {
  .slideshow-wrapper {
    height: 40vh;
  }

  .footer-wave-top {
    height: 25vw;
  }

  .promo-separator {
    padding-top: 2vh;
    padding-bottom: 5vh;
  }
}