/* ==========================================================================
   CSS CUSTOM VARIABLES & PALETTE SYSTEM
   ========================================================================== */
:root {
  /* Lux Color Palette */
  --bg-dark: #070707;
  --bg-deep-plum: #160a0f;
  --leather-cover: #121212;
  --paper-cream: #f6f5f2;
  --paper-cream-dark: #ebe9e3;
  --text-dark: #222222;
  --text-muted: #666666;
  
  /* Rose Gold / Pink Gradient Accents */
  --metallic-primary: #e05275;
  --metallic-secondary: #ff7597;
  --metallic-gradient: linear-gradient(135deg, #f3a0b3 0%, #e05275 50%, #9e2a45 100%);
  --metallic-gold-subtle: linear-gradient(135deg, #eed2c4 0%, #d4a396 100%);
  
  /* Fonts */
  --font-serif: 'Cormorant Garamond', Georgia, serif;
  --font-sans: 'Inter', Helvetica, sans-serif;
  --font-script: 'La Belle Aurore', cursive;
  
  /* Physics & Transitions */
  --page-transition-speed: 0.8s;
  --page-transition-ease: cubic-bezier(0.645, 0.045, 0.355, 1.000);
}

/* Reset and Global Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg-dark);
  color: #ffffff;
  font-family: var(--font-sans);
  overflow: hidden;
  height: 100vh;
  width: 100vw;
  display: flex;
  justify-content: center;
  align-items: center;
  perspective: 1500px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Ambient lighting radial sweep mimicking portfolio background glow */
.ambient-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 75% 20%, var(--bg-deep-plum) 0%, var(--bg-dark) 70%);
  z-index: 1;
}

/* Skeuomorphic micro-noise texture overlay */
.noise-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  pointer-events: none;
  opacity: 0.45;
  filter: url(#grainy-noise);
}

.svg-noise-filter {
  position: absolute;
  width: 0;
  height: 0;
}

/* ==========================================================================
   HUD EXTERNAL FRAME STYLING
   ========================================================================== */
.hud-header {
  position: fixed;
  top: 40px;
  left: 40px;
  right: 40px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  z-index: 10;
  pointer-events: none;
}

.hud-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  pointer-events: auto;
}

.logo-icon {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 700;
  color: var(--metallic-primary);
  border: 1px solid var(--metallic-primary);
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: #fff;
}

.brand-sub {
  font-size: 0.65rem;
  font-weight: 400;
  letter-spacing: 0.3em;
  color: var(--text-muted);
}

.hud-tagline {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  text-align: right;
  line-height: 1.4;
  color: var(--text-muted);
}

.hud-tagline span {
  color: var(--metallic-primary);
}

/* Sidebar Page Trackers */
.hud-sidebar-nav {
  position: fixed;
  left: 40px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 15px;
  z-index: 10;
}

.nav-item {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  padding-left: 15px;
}

.nav-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: var(--metallic-primary);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.nav-item.active {
  color: var(--metallic-primary);
}

.nav-item.active::before {
  opacity: 1;
}

/* Elastic Book Binding Tab on HUD right side */
.hud-right-tab {
  position: fixed;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  background-color: var(--metallic-primary);
  color: #ffffff;
  padding: 20px 10px;
  border-radius: 4px 0 0 4px;
  cursor: pointer;
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  box-shadow: -3px 5px 15px rgba(0,0,0,0.4);
  transition: background-color 0.3s ease, transform 0.3s ease;
}

.hud-right-tab:hover {
  background-color: var(--metallic-secondary);
  transform: translateY(-50%) translateX(-4px);
}

.tab-text {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  font-weight: 600;
}

.tab-arrow svg {
  width: 14px;
  height: 14px;
}

/* Footer Controls */
.hud-footer {
  position: fixed;
  bottom: 40px;
  left: 40px;
  right: 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 10;
}

.hud-socials {
  display: flex;
  gap: 20px;
}

.hud-socials a {
  color: var(--text-muted);
  transition: color 0.3s ease;
}

.hud-socials a:hover {
  color: var(--metallic-primary);
}

.hud-socials svg {
  width: 18px;
  height: 18px;
}

.hud-scroll-hint {
  display: flex;
  align-items: center;
  gap: 15px;
  opacity: 0;
  transition: opacity 0.5s ease;
  pointer-events: none;
}

.hud-scroll-hint.visible {
  opacity: 1;
  pointer-events: auto;
}

.scroll-label {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--text-muted);
}

.nav-arrows {
  display: flex;
  gap: 10px;
}

.nav-arrows button {
  background: none;
  border: 1px solid rgba(255,255,255,0.15);
  color: #fff;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.nav-arrows button:hover {
  border-color: var(--metallic-primary);
  color: var(--metallic-primary);
}

.nav-arrows svg {
  width: 16px;
  height: 16px;
}

/* ==========================================================================
   MAIN BOOK PLATFORM DESIGN
   ========================================================================== */
.book-container {
  position: relative;
  width: 1100px;
  height: 700px;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: center;
}

.book {
  position: relative;
  width: 100%;
  height: 100%;
  background-color: var(--leather-cover);
  border-radius: 12px;
  box-shadow: 
    0 30px 70px rgba(0, 0, 0, 0.8),
    inset 0 2px 4px rgba(255, 255, 255, 0.1),
    inset 0 -2px 4px rgba(0, 0, 0, 0.6);
  transform-style: preserve-3d;
  transition: transform 1.2s var(--page-transition-ease);
}

/* Cover open/closed perspective styles */
.book.is-closed {
  width: 550px;
  transform: rotateY(0deg) translateX(0px);
}

.book.is-open {
  width: 1100px;
  transform: rotateY(0deg);
}

/* Spine detailing */
.book-spine {
  position: absolute;
  top: 0;
  left: 0;
  width: 30px;
  height: 100%;
  background: linear-gradient(to right, #000 0%, #222 30%, #111 70%, #000 100%);
  border-radius: 12px 0 0 12px;
  z-index: 10;
  box-shadow: inset -2px 0 5px rgba(0,0,0,0.8);
}

.book.is-open .book-spine {
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  border-radius: 0;
}

/* ==========================================================================
   FRONT COVER INTERFACE
   ========================================================================== */
.book-cover-front {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--leather-cover);
  border-radius: 12px;
  z-index: 9;
  transform-origin: left center;
  transition: transform 1.2s var(--page-transition-ease), opacity 1s;
  backface-visibility: hidden;
  overflow: hidden;
}

.book.is-open .book-cover-front {
  transform: rotateY(-140deg);
  opacity: 0;
  pointer-events: none;
}

.cover-design {
  position: relative;
  width: 100%;
  height: 100%;
  padding: 50px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.accent-band {
  position: absolute;
  top: 0;
  left: 45px;
  width: 4px;
  height: 100%;
  background: var(--metallic-gradient);
  opacity: 0.85;
}

.cover-content {
  margin-left: 40px;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.cover-welcome {
  font-size: 0.8rem;
  letter-spacing: 0.3em;
  color: var(--text-muted);
}

.cover-title {
  font-family: var(--font-serif);
  font-size: 2.8rem;
  line-height: 1.15;
  font-weight: 400;
  letter-spacing: 0.05em;
  margin-top: 20px;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.6);
}

.cover-title .highlight {
  font-weight: 700;
  background: var(--metallic-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.cover-tagline {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--text-muted);
  margin-top: 15px;
}

.signature-block {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.signature {
  font-family: var(--font-script);
  font-size: 2.2rem;
  color: var(--metallic-primary);
}

.sig-title {
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.cover-footer {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-top: auto;
}

.confidential {
  font-size: 0.65rem;
  line-height: 1.6;
  color: var(--text-muted);
}

.confidential strong {
  color: var(--metallic-primary);
  letter-spacing: 0.05em;
}

.watermark-g {
  font-family: var(--font-serif);
  font-size: 6rem;
  font-weight: 700;
  color: rgba(255,255,255,0.02);
  line-height: 1;
}

/* ==========================================================================
   INTERNAL DOUBLE PAGE LAYOUTS
   ========================================================================== */
.book-pages {
  position: absolute;
  top: 10px;
  bottom: 10px;
  left: 15px;
  right: 15px;
  background-color: var(--paper-cream);
  border-radius: 4px;
  overflow: hidden;
  z-index: 5;
  box-shadow: inset 0 0 40px rgba(0,0,0,0.15);
}

.book-spread {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--page-transition-speed) var(--page-transition-ease);
}

.book-spread.active {
  opacity: 1;
  pointer-events: auto;
}

/* Page half bases */
.page {
  flex: 1;
  height: 100%;
  background-color: var(--paper-cream);
  padding: 55px 60px;
  overflow-y: auto;
  position: relative;
}

/* Physical fold page shadow effects */
.page-left {
  border-right: 1px solid rgba(0,0,0,0.08);
  box-shadow: inset -30px 0 35px rgba(0,0,0,0.04);
}

.page-right {
  box-shadow: inset 30px 0 35px rgba(0,0,0,0.04);
}

/* Header style within pages */
.page-num {
  position: absolute;
  top: 55px;
  left: 60px;
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--metallic-primary);
  font-weight: 700;
}

.page-content {
  margin-top: 40px;
  height: calc(100% - 40px);
  color: var(--text-dark);
}

h2 {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  letter-spacing: 0.05em;
  color: var(--text-dark);
  margin-bottom: 25px;
  position: relative;
}

h2::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 40px;
  height: 1px;
  background-color: var(--metallic-primary);
}

.intro-p {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-dark);
  font-weight: 500;
  margin-bottom: 20px;
}

.body-p {
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--text-muted);
}

/* ==========================================================================
   SPREAD 1 SPECS (About)
   ========================================================================== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 40px;
}

.stat-box {
  background: rgba(0,0,0,0.02);
  border: 1px solid rgba(0,0,0,0.05);
  padding: 15px;
  border-radius: 6px;
}

.stat-box strong {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.8rem;
  color: var(--metallic-primary);
  line-height: 1.2;
}

.stat-box span {
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  text-transform: uppercase;
}

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

.visual-wrapper {
  position: relative;
  width: 100%;
  max-width: 360px;
}

.workstation-graphic {
  width: 100%;
  height: 240px;
  background-color: #1a1a1a;
  border-radius: 8px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 15px 30px rgba(0,0,0,0.2);
}

.screen-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100px;
  height: 100px;
  background: radial-gradient(circle, rgba(224,82,117,0.3) 0%, rgba(0,0,0,0) 70%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.screen-logo {
  font-family: var(--font-serif);
  font-size: 3rem;
  color: var(--metallic-primary);
  text-shadow: 0 0 15px rgba(224,82,117,0.8);
}

.expertise-overlay {
  background: #ffffff;
  padding: 25px;
  border-radius: 8px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.05);
  margin-top: -30px;
  position: relative;
  z-index: 2;
  border: 1px solid rgba(0,0,0,0.05);
}

.expertise-overlay h3 {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--text-muted);
  margin-bottom: 15px;
}

.expertise-overlay ul {
  list-style: none;
}

.expertise-overlay li {
  font-size: 0.8rem;
  color: var(--text-dark);
  margin-bottom: 8px;
  padding-left: 15px;
  position: relative;
}

.expertise-overlay li::before {
  content: '•';
  color: var(--metallic-primary);
  position: absolute;
  left: 0;
}

/* ==========================================================================
   SPREAD 2 SPECS (Services)
   ========================================================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 25px;
  height: 100%;
}

.service-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.card-icon {
  color: var(--metallic-primary);
  width: 28px;
  height: 28px;
}

.service-card h3 {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  color: var(--text-dark);
}

.service-card p {
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--text-muted);
}

/* ==========================================================================
   SPREAD 3 SPECS (Why Choose Us)
   ========================================================================== */
.values-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.value-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

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

.val-icon {
  width: 20px;
  height: 20px;
  color: var(--metallic-primary);
}

.value-item h3 {
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: var(--text-dark);
}

.value-item p {
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--text-muted);
}

/* ==========================================================================
   SPREAD 4 SPECS (Portfolio)
   ========================================================================== */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 15px;
}

.portfolio-card {
  background: #fff;
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0,0,0,0.03);
  border: 1px solid rgba(0,0,0,0.05);
}

.project-img-placeholder {
  width: 100%;
  height: 120px;
  background-color: var(--paper-cream-dark);
  display: flex;
  align-items: center;
  justify-content: center;
}

.p-category {
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  font-weight: 600;
}

.p-details {
  padding: 12px;
}

.p-details h3 {
  font-size: 0.8rem;
  color: var(--text-dark);
  margin-bottom: 2px;
}

.p-details span {
  font-size: 0.65rem;
  color: var(--text-muted);
}

.cta-box {
  background: rgba(224, 82, 117, 0.05);
  border: 1px dashed var(--metallic-primary);
  padding: 25px;
  border-radius: 6px;
  margin-top: 35px;
  text-align: center;
}

.cta-box p {
  font-size: 0.85rem;
  color: var(--text-dark);
  margin-bottom: 10px;
  font-weight: 500;
}

.inline-cta-btn {
  font-size: 0.8rem;
  color: var(--metallic-primary);
  text-decoration: none;
  font-weight: 600;
  border-bottom: 1px solid var(--metallic-primary);
  padding-bottom: 2px;
  transition: opacity 0.3s;
}

.inline-cta-btn:hover {
  opacity: 0.8;
}

/* ==========================================================================
   SPREAD 5 SPECS (Testimonials)
   ========================================================================== */
.testimonials-container {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.testimonial-card {
  background: #fff;
  border: 1px solid rgba(0,0,0,0.05);
  border-radius: 6px;
  padding: 20px;
  position: relative;
}

.quote-mark {
  position: absolute;
  top: 10px;
  left: 15px;
  font-size: 2.5rem;
  color: rgba(224, 82, 117, 0.1);
  font-family: serif;
}

.quote-text {
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--text-dark);
  position: relative;
  z-index: 2;
  margin-bottom: 12px;
}

.client-info {
  display: flex;
  flex-direction: column;
}

.client-info strong {
  font-size: 0.75rem;
  color: var(--text-dark);
}

.client-info span {
  font-size: 0.65rem;
  color: var(--text-muted);
}

/* ==========================================================================
   SPREAD 6 SPECS (Pricing)
   ========================================================================== */
.pricing-wrapper {
  display: flex;
  gap: 15px;
  height: 100%;
  align-items: stretch;
}

.pricing-card {
  flex: 1;
  background: #fff;
  border: 1px solid rgba(0,0,0,0.05);
  border-radius: 8px;
  padding: 25px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}

.pricing-card.featured {
  border-color: var(--metallic-primary);
  box-shadow: 0 10px 25px rgba(224, 82, 117, 0.1);
}

.badge {
  position: absolute;
  top: -10px;
  background: var(--metallic-gradient);
  color: #fff;
  font-size: 0.55rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 12px;
  letter-spacing: 0.1em;
}

.plan-name {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--text-dark);
}

.plan-desc {
  font-size: 0.65rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.plan-price {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--metallic-primary);
  margin: 15px 0;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.plan-price span {
  font-size: 0.6rem;
  font-family: var(--font-sans);
  color: var(--text-muted);
  font-weight: 400;
}

.plan-features {
  list-style: none;
  width: 100%;
  margin-bottom: 20px;
}

.plan-features li {
  font-size: 0.7rem;
  color: var(--text-dark);
  padding: 6px 0;
  text-align: center;
  border-bottom: 1px solid rgba(0,0,0,0.03);
}

.pricing-btn {
  width: 100%;
  background: none;
  border: 1px solid rgba(0,0,0,0.15);
  color: var(--text-dark);
  padding: 8px;
  font-size: 0.7rem;
  font-weight: 600;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.3s;
  margin-top: auto;
}

.pricing-card.featured .pricing-btn {
  background: var(--metallic-primary);
  color: #fff;
  border: none;
}

.pricing-btn:hover {
  background: var(--metallic-primary);
  color: #fff;
  border-color: var(--metallic-primary);
}

.custom-pricing-note {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-top: 40px;
}

/* ==========================================================================
   SPREAD 7 SPECS (Contact Interface)
   ========================================================================== */
.contact-info-column {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 25px;
  margin-top: 40px;
}

.detail-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.item-label {
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  color: var(--text-muted);
}

.item-value {
  font-size: 0.9rem;
  color: var(--text-dark);
  text-decoration: none;
  font-weight: 500;
}

/* Input Fields & Textareas conforming to premium spec sheet layouts */
.form-title {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: var(--text-dark);
  margin-bottom: 20px;
  font-weight: 600;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  background-color: rgba(0,0,0,0.02);
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: 4px;
  padding: 12px;
  font-size: 0.8rem;
  color: var(--text-dark);
  font-family: var(--font-sans);
  transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--metallic-primary);
}

.submit-btn {
  background: var(--metallic-gradient);
  color: #fff;
  border: none;
  padding: 12px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  border-radius: 4px;
  cursor: pointer;
  transition: opacity 0.3s;
}

.submit-btn:hover {
  opacity: 0.9;
}

/* ==========================================================================
   SPREAD 8 SPECS (Thank You / Outro)
   ========================================================================== */
.bg-dark-page {
  background-color: var(--leather-cover) !important;
  color: #fff !important;
  box-shadow: none !important;
}

.outro-quote-block {
  text-align: center;
  max-width: 320px;
}

.quote-sign {
  font-size: 3.5rem;
  color: var(--metallic-primary);
  font-family: serif;
}

.quote-body {
  font-size: 1.1rem;
  line-height: 1.6;
  color: #ccc;
  margin-bottom: 15px;
}

.quote-author {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--metallic-primary);
}

.thank-you-block {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.thank-you-block h2 {
  font-size: 2.2rem;
  margin-bottom: 5px;
  color: #fff;
}

.thank-you-block h2::after {
  display: none;
}

.thank-you-block h3 {
  font-size: 0.85rem;
  letter-spacing: 0.25em;
  color: var(--metallic-primary);
}

.brand-monogram {
  font-family: var(--font-serif);
  font-size: 4rem;
  border: 2px solid var(--metallic-primary);
  width: 90px;
  height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  color: var(--metallic-primary);
  margin: 25px 0;
}

.cta-line {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: #ccc;
  margin-bottom: 20px;
}

.action-btn-large {
  background: none;
  border: 1px solid var(--metallic-primary);
  color: #fff;
  padding: 12px 30px;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  font-weight: 600;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.3s;
}

.action-btn-large:hover {
  background-color: var(--metallic-primary);
}

.copyright {
  font-size: 0.6rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-top: 30px;
}

/* ==========================================================================
   RESPONSIVE SCALING ADAPTATIONS (Pure Layout Logic)
   ========================================================================== */
@media (max-width: 1200px) {
  .book-container {
    transform: scale(0.85);
  }
}

@media (max-width: 992px) {
  .book-container {
    transform: scale(0.7);
  }
}

/* Mobile Fallback: transforms layout smoothly into stack */
@media (max-width: 768px) {
  body {
    overflow-y: auto;
    height: auto;
  }
  .ambient-bg {
    position: fixed;
  }
  .hud-header, .hud-sidebar-nav, .hud-right-tab, .hud-footer {
    display: none !important;
  }
  .book-container {
    width: 100%;
    height: auto;
    transform: none;
    padding: 20px;
  }
  .book {
    width: 100% !important;
    height: auto;
    transform: none !important;
  }
  .book-cover-front {
    position: relative;
    height: auto;
    transform: none !important;
    opacity: 1 !important;
  }
  .book-pages {
    position: relative;
    top: auto;
    bottom: auto;
    left: auto;
    right: auto;
    height: auto;
  }
  .book-spread {
    position: relative;
    display: flex;
    flex-direction: column;
    opacity: 1;
    pointer-events: auto;
    height: auto;
  }
  .page {
    height: auto;
    padding: 40px 20px;
  }
}