/* ==========================================================================
   PAGE STYLE: adventures.css
   Specially extracted for the Adventures page to remove dependencies on global/styles.css
   ========================================================================== */

/* 1. IMPORTS & BASE */
@import url('https://fonts.googleapis.com/css2?family=Newsreader:ital,opsz,wght@0,6..72,200..800;1,6..72,200..800&family=Inter:wght@300;400;500;600;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@20..48,100..700,0..1,-50..200&display=swap');
@import "tailwindcss";

*, *::before, *::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-family: 'Newsreader', serif;
  font-weight: 400;
}

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

.material-symbols-outlined {
  font-family: 'Material Symbols Outlined';
  font-weight: normal;
  font-style: normal;
  font-size: 24px;
  line-height: 1;
  letter-spacing: normal;
  text-transform: none;
  display: inline-block;
  white-space: nowrap;
  word-wrap: normal;
  direction: ltr;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: 'liga';
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
  vertical-align: middle;
}

/* 2. DESIGN VARIABLES */
:root {
  /* Colors */
  --sdi-color-primary: #e2c62d;
  --sdi-color-on-primary: #393000;
  --sdi-color-accent: #073731;
  --sdi-color-bg-infobar: #101415;
  --sdi-color-bg-header: rgba(22, 28, 30, 0.9);
  --sdi-color-bg-header-transparent: rgba(2, 44, 34, 0.6);
  --sdi-color-bg-header-scrolled: #0b1c1a;
  --sdi-color-bg-dropdown: rgba(2, 44, 34, 0.95);
  --sdi-color-background: #101415;
  --sdi-color-on-background: #e0e3e4;
  --sdi-color-surface: #101415;
  --sdi-color-on-surface: #e0e3e4;
  --sdi-color-on-surface-variant: #c0c8c5;
  --sdi-color-outline-variant: #404846;
  --sdi-color-border-infobar: rgba(218, 220, 224, 0.2);
  --sdi-color-border-header: rgba(255, 255, 255, 0.1);
  --sdi-color-text-muted: #d6d3d1;
  --sdi-color-text-light: #ffffff;
  --sdi-color-text-header: #e7e5e4;
  --sdi-color-yellow-400: #e2c62d;
  --sdi-color-stone-300: #d6d3d1;
  --sdi-color-stone-400: #a8a29e;
  --sdi-color-stone-600: #57534e;
  --sdi-color-deep-stone: #44403c;
  --sdi-color-emerald-800: #065f46;
  --sdi-color-emerald-dark: #16423c;

  /* Typography */
  --sdi-font-family-sans: 'Inter', sans-serif;
  --sdi-font-family-serif: 'Newsreader', serif;
  --sdi-font-size-xs: 10px;
  --sdi-font-size-sm: 12px;
  --sdi-font-size-md: 1rem;
  --sdi-font-size-lg: 1.125rem;
  --sdi-font-size-xl: 1.5rem;
  --sdi-letter-spacing-widest: 0.1em;
  --sdi-letter-spacing-logo: 0.2em;

  /* Spacing Shared */
  --sdi-infobar-spacing-padding-x: 3rem;
  --sdi-header-spacing-padding-x: 3rem;
  --sdi-header-spacing-padding-y: 1.5rem;
  --sdi-header-spacing-gap: 2rem;
  --sdi-infobar-spacing-container-max-width: 100%;
  --sdi-infobar-spacing-item-gap: 1.5rem;
  --sdi-footer-spacing-padding-top: 6rem;
  --sdi-footer-spacing-padding-bottom: 3rem;
  --sdi-footer-spacing-padding-x: 3rem;
  --sdi-footer-spacing-gap: 3rem;
  --sdi-footer-spacing-margin-top-copyright: 5rem;

  /* Adventures Specific Variables */
  --sdi-adv-hero-bg: rgb(224, 227, 228);
  --sdi-adv-hero-text: #101415;
  --sdi-adv-hero-subtitle: #064e3b;
  --sdi-adv-hero-desc: #313536;
  --sdi-adv-tabs-bg: rgb(224, 227, 228);
  --sdi-adv-spacing-section-padding-y: 60px;
  --sdi-adv-spacing-section-padding-y-lg: 80px;
  --sdi-adv-spacing-hero-padding-top: 6rem;
  --sdi-adv-spacing-tabs-sticky-top: 92px;
  --sdi-adv-spacing-panel-min-height: 850px;
  --sdi-adv-spacing-standards-padding-y: 100px;
  --sdi-adv-spacing-standards-padding-y-lg: 140px;
  --sdi-adv-spacing-cta-padding-y: 140px;

  /* Transitions */
  --sdi-transition-fast: 0.2s ease;
  --sdi-transition-standard: 0.3s ease;

  /* Global Overlay */
  --sdi-hero-overlay: rgba(0, 0, 0, 0.4);
  --sdi-hero-min-height: 884px;
  --sdi-infobar-height: 40px;
}

/* 3. CORE COMPONENTS */

.sdi-body {
  background-color: var(--sdi-color-background);
  color: var(--sdi-color-on-background);
}

[data-lazy-init] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

[data-lazy-init].sdi-is-visible {
  opacity: 1;
  transform: translateY(0);
}

.sdi-infobar {
  background-color: var(--sdi-color-bg-infobar);
  height: var(--sdi-infobar-height);
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--sdi-color-border-infobar);
}

.sdi-infobar__container {
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--sdi-infobar-spacing-padding-x);
  padding-right: var(--sdi-infobar-spacing-padding-x);
  width: var(--sdi-infobar-spacing-container-max-width);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.sdi-infobar__group {
  display: flex;
  gap: var(--sdi-infobar-spacing-item-gap);
}

.sdi-infobar__link {
  font-family: var(--sdi-font-family-sans);
  text-transform: uppercase;
  text-decoration: none;
  letter-spacing: var(--sdi-letter-spacing-widest);
  font-size: var(--sdi-font-size-xs);
  color: var(--sdi-color-text-muted);
  transition: color var(--sdi-transition-fast);
}

.sdi-infobar__link:hover {
  color: var(--sdi-color-text-light);
}

.sdi-infobar__text {
  font-family: var(--sdi-font-family-sans);
  text-transform: uppercase;
  letter-spacing: var(--sdi-letter-spacing-widest);
  font-size: var(--sdi-font-size-xs);
  color: var(--sdi-color-text-muted);
}

.sdi-infobar__item--hidden-xs {
  display: none;
}

@media (min-width: 768px) {
  .sdi-infobar__item--hidden-xs {
    display: inline;
  }
}

.sdi-header {
  width: 100%;
  z-index: 50;
  position: sticky;
  top: 0;
  background-color: var(--sdi-color-bg-header-transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: all var(--sdi-transition-standard);
}

.sdi-header--scrolled {
  background-color: var(--sdi-color-bg-header-scrolled);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.sdi-header--scrolled .sdi-header__nav {
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
}

.sdi-header__nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-left: var(--sdi-header-spacing-padding-x);
  padding-right: var(--sdi-header-spacing-padding-x);
  padding-top: var(--sdi-header-spacing-padding-y);
  padding-bottom: var(--sdi-header-spacing-padding-y);
}

.sdi-header__logo {
  font-family: var(--sdi-font-family-serif);
  font-size: var(--sdi-font-size-xl);
  color: var(--sdi-color-primary);
  text-decoration: none;
  font-style: italic;
  letter-spacing: -0.025em;
  line-height: 1;
}

.sdi-header__logo-subtext {
  display: block;
  font-family: var(--sdi-font-family-sans);
  font-size: var(--sdi-font-size-sm);
  font-style: normal;
  text-transform: uppercase;
  letter-spacing: var(--sdi-letter-spacing-logo);
  opacity: 0.8;
  margin-top: 0.25rem;
}

.sdi-header__menu {
  display: none;
  align-items: center;
  gap: var(--sdi-header-spacing-gap);
}

@media (min-width: 768px) {
  .sdi-header__menu {
    display: flex;
  }
}

.sdi-header__menu-item {
  position: relative;
}

.sdi-header__link {
  font-family: var(--sdi-font-family-serif);
  font-style: italic;
  letter-spacing: 0.025em;
  color: var(--sdi-color-text-header);
  text-decoration: none;
  transition: color var(--sdi-transition-standard);
  display: flex;
  align-items: center;
  gap: 0.25rem;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.sdi-header__link:hover {
  color: var(--sdi-color-primary);
}

.sdi-header__dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  width: 18rem;
  padding-top: 0.5rem;
  opacity: 0;
  pointer-events: none;
  transition: all var(--sdi-transition-standard);
  z-index: 50;
}

.sdi-header__menu-item:hover .sdi-header__dropdown {
  opacity: 1;
  pointer-events: auto;
}

.sdi-header__dropdown-inner {
  background-color: var(--sdi-color-bg-dropdown);
  border: 1px solid var(--sdi-color-border-header);
  backdrop-filter: blur(12px);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.sdi-header__dropdown-item {
  text-decoration: none;
  display: block;
}

.sdi-header__dropdown-title {
  color: var(--sdi-color-primary);
  font-family: var(--sdi-font-family-serif);
  font-style: italic;
  font-size: var(--sdi-font-size-lg);
  display: block;
}

.sdi-header__dropdown-desc {
  color: var(--sdi-color-text-muted);
  font-size: var(--sdi-font-size-xs);
  text-transform: uppercase;
  letter-spacing: var(--sdi-letter-spacing-widest);
  display: block;
  margin-top: 0.25rem;
}

.sdi-header__divider {
  height: 1px;
  background-color: var(--sdi-color-border-header);
  width: 100%;
}

.sdi-header__button {
  background-color: var(--sdi-color-primary);
  color: var(--sdi-color-accent);
  padding-left: 1.5rem;
  padding-right: 1.5rem;
  padding-top: 0.5rem;
  padding-bottom: 0.5rem;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: all var(--sdi-transition-standard);
  font-family: var(--sdi-font-family-sans);
}

.sdi-header__button:hover {
  background-color: var(--sdi-color-text-light);
  transform: scale(1.05);
}

.sdi-header__button:active {
  transform: scale(0.95);
}

/* 4. ADVENTURES COMPONENTS (extracted from styles.css) */

.sdi-adv-hero {
  position: relative;
  min-height: var(--sdi-hero-min-height);
  display: flex;
  align-items: center;
  padding-top: var(--sdi-adv-spacing-hero-padding-top);
  overflow: hidden;
  background-color: var(--sdi-adv-hero-bg);
}

.sdi-adv-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.sdi-adv-hero__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.25;
  position: absolute;
}

@media (min-width: 768px) {
  .sdi-adv-hero__img {
    width: 35%;
    margin-left: auto;
    right: 0;
  }
}

.sdi-adv-hero__overlay {
  position: absolute;
  inset: 0;
}

@media (min-width: 768px) {
  .sdi-adv-hero__overlay {
    background: linear-gradient(to top, var(--sdi-adv-hero-bg),
        rgba(224, 227, 228, 0.6), transparent);
  }
}

.sdi-adv-hero__container {
  position: relative;
  z-index: 10;
  width: 100%;
  max-width: 80rem;
  margin-left: auto;
  margin-right: auto;
  padding-left: 2rem;
  padding-right: 2rem;
}

@media (min-width: 768px) {
  .sdi-adv-hero__container {
    padding-left: 4rem;
    padding-right: 4rem;
  }
}

.sdi-adv-hero__content {
  max-width: 56rem;
}

.sdi-adv-hero__tagline {
  font-family: var(--sdi-font-family-sans);
  letter-spacing: var(--sdi-letter-spacing-widest);
  color: var(--sdi-adv-hero-subtitle);
  text-transform: uppercase;
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
  display: block;
}

.sdi-adv-hero__title {
  font-family: var(--sdi-font-family-serif);
  font-size: 3rem;
  color: var(--sdi-adv-hero-text);
  line-height: 1.1;
  margin-bottom: 2rem;
}

@media (min-width: 768px) {
  .sdi-adv-hero__title {
    font-size: 4.5rem;
  }
}

@media (min-width: 1024px) {
  .sdi-adv-hero__title {
    font-size: 6rem;
  }
}

.sdi-adv-hero__description {
  font-family: var(--sdi-font-family-serif);
  font-style: italic;
  font-size: 1.25rem;
  color: var(--sdi-adv-hero-desc);
  max-width: 42rem;
  line-height: 1.5;
}

@media (min-width: 768px) {
  .sdi-adv-hero__description {
    font-size: 1.5rem;
  }
}

.sdi-adv-discovery {
  padding-top: var(--sdi-adv-spacing-section-padding-y);
  padding-bottom: var(--sdi-adv-spacing-section-padding-y);
  background-color: var(--sdi-adv-hero-bg);
}

@media (min-width: 768px) {
  .sdi-adv-discovery {
    padding-top: var(--sdi-adv-spacing-section-padding-y-lg);
    padding-bottom: var(--sdi-adv-spacing-section-padding-y-lg);
  }
}

.sdi-adv-discovery__container {
  width: 100%;
  max-width: 80rem;
  margin-left: auto;
  margin-right: auto;
  padding-left: 2rem;
  padding-right: 2rem;
}

@media (min-width: 768px) {
  .sdi-adv-discovery__container {
    padding-left: 4rem;
    padding-right: 4rem;
  }
}

.sdi-adv-discovery__header {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 3rem;
  gap: 2rem;
}

@media (min-width: 768px) {
  .sdi-adv-discovery__header {
    flex-direction: row;
  }
}

.sdi-adv-discovery__intro {
  max-width: 36rem;
  width: 100%;
  text-align: left;
}

.sdi-adv-discovery__title {
  font-family: var(--sdi-font-family-serif);
  font-size: 1.875rem;
  margin-bottom: 1rem;
  color: var(--sdi-color-accent);
}

@media (min-width: 768px) {
  .sdi-adv-discovery__title {
    font-size: 2.25rem;
  }
}

.sdi-adv-discovery__text {
  color: var(--sdi-color-on-surface-variant);
}

.sdi-adv-tabs {
  display: flex;
  gap: 0.25rem;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  position: sticky;
  top: var(--sdi-adv-spacing-tabs-sticky-top);
  z-index: 40;
  background-color: var(--sdi-adv-hero-bg);
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  scroll-snap-type: x mandatory;
}

.sdi-adv-tabs::-webkit-scrollbar {
  display: none;
}

@media (min-width: 768px) {
  .sdi-adv-tabs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
  }
}

.sdi-adv-tabs__btn {
  cursor: pointer;
  padding: 1.5rem 1rem;
  text-align: left;
  border: none;
  border-bottom: 2px solid transparent;
  background: none;
  transition: all var(--sdi-transition-standard);
  min-width: 280px;
  flex-shrink: 0;
  scroll-snap-align: start;
}

@media (min-width: 768px) {
  .sdi-adv-tabs__btn {
    padding: 2rem 1rem;
    min-width: 0;
  }
}

.sdi-adv-tabs__btn.active {
  border-bottom-color: var(--sdi-color-accent);
  opacity: 1;
}

.sdi-adv-tabs__number {
  display: block;
  font-family: var(--sdi-font-family-sans);
  font-size: 0.75rem;
  letter-spacing: -0.05em;
  color: #6b7280;
  margin-bottom: 0.5rem;
}

.sdi-adv-tabs__label {
  font-family: var(--sdi-font-family-serif);
  font-size: 1.5rem;
  color: #374151;
  white-space: nowrap;
}

@media (min-width: 768px) {
  .sdi-adv-tabs__label {
    white-space: normal;
  }
}

.sdi-adv-tabs__btn:hover .sdi-adv-tabs__label {
  font-style: italic;
}

.sdi-adv-tabs__btn.active .sdi-adv-tabs__label {
  font-style: italic;
  color: var(--sdi-color-accent);
}

.sdi-adv-panel {
  min-height: var(--sdi-adv-spacing-panel-min-height);
  display: none;
  align-items: center;
  background-color: var(--sdi-color-surface);
  position: relative;
  overflow: hidden;
  padding: 1.5rem;
  opacity: 0;
  transition: opacity 0.4s ease;
}

@media (min-width: 768px) {
  .sdi-adv-panel {
    padding: 2rem;
  }
}

.sdi-adv-panel.active {
  display: flex;
  opacity: 1;
}

.sdi-adv-panel--steady {
  background-color: #075985;
  color: #ffffff;
}

.sdi-adv-panel__container {
  width: 100%;
  max-width: 80rem;
  margin-left: auto;
  margin-right: auto;
  padding-left: 2rem;
  padding-right: 2rem;
  display: flex;
  flex-direction: column;
  gap: 4rem;
  align-items: center;
  height: 100%;
}

@media (min-width: 768px) {
  .sdi-adv-panel__container {
    padding-left: 4rem;
    padding-right: 4rem;
    flex-direction: row;
  }
}

.sdi-adv-panel__container--steady {
  justify-content: center;
}

.sdi-adv-panel__info {
  width: 100%;
}

@media (min-width: 768px) {
  .sdi-adv-panel__info {
    width: 35%;
  }
}

.sdi-adv-panel__info--order-2 {
  order: 2;
}

@media (min-width: 768px) {
  .sdi-adv-panel__info--order-2 {
    order: 1;
  }
}

.sdi-adv-panel__tagline {
  font-family: var(--sdi-font-family-sans);
  color: var(--sdi-color-primary);
  letter-spacing: var(--sdi-letter-spacing-widest);
  font-size: 0.875rem;
  margin-bottom: 1rem;
  display: block;
  text-transform: uppercase;
}

.sdi-adv-panel--steady .sdi-adv-panel__tagline {
  color: #beece3;
}

.sdi-adv-panel__title {
  font-family: var(--sdi-font-family-serif);
  font-size: 2.25rem;
  margin-bottom: 2rem;
  line-height: 1.1;
}

@media (min-width: 1024px) {
  .sdi-adv-panel__title {
    font-size: 3rem;
  }
}

.sdi-adv-panel__body {
  margin-bottom: 2.5rem;
  color: var(--sdi-color-on-surface-variant);
  line-height: 1.625;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.sdi-adv-panel--steady .sdi-adv-panel__body {
  color: rgba(255, 255, 255, 0.9);
  max-width: 36rem;
}

.sdi-adv-panel__nav {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  font-family: var(--sdi-font-family-serif);
  font-size: 1.125rem;
  font-style: italic;
  color: var(--sdi-color-on-surface);
}

.sdi-adv-panel__tour-link {
  display: flex;
  align-items: center;
  gap: 1rem;
  text-decoration: none;
  color: inherit;
  transition: color var(--sdi-transition-standard);
}

.sdi-adv-panel__tour-link:hover {
  color: var(--sdi-color-primary);
}

.sdi-adv-panel__tour-line {
  width: 2rem;
  height: 1px;
  background-color: var(--sdi-color-primary);
  transition: background-color var(--sdi-transition-standard);
}

.sdi-adv-panel__tour-link:hover .sdi-adv-panel__tour-line {
  background-color: var(--sdi-color-primary);
}

.sdi-adv-panel__cta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--sdi-color-primary);
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.sdi-adv-panel--steady .sdi-adv-panel__cta {
  color: #fde047;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
}

.sdi-adv-panel__cta .material-symbols-outlined {
  transition: transform var(--sdi-transition-standard);
}

.sdi-adv-panel__cta:hover .material-symbols-outlined {
  transform: translateX(8px);
}

.sdi-adv-panel__visual {
  width: 100%;
}

@media (min-width: 768px) {
  .sdi-adv-panel__visual {
    width: 65%;
  }
}

.sdi-adv-panel__visual--order-1 {
  order: 1;
}

@media (min-width: 768px) {
  .sdi-adv-panel__visual--order-1 {
    order: 2;
  }
}

.sdi-adv-panel__grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1rem;
}

.sdi-adv-panel__img-box {
  border-radius: 0.5rem;
  overflow: hidden;
}

.sdi-adv-panel__img-box--main {
  grid-column: span 12;
  height: 500px;
}

@media (min-width: 768px) {
  .sdi-adv-panel__img-box--main {
    grid-column: span 8;
  }
}

.sdi-adv-panel__img-box--accent {
  grid-column: span 12;
  height: 300px;
}

@media (min-width: 768px) {
  .sdi-adv-panel__img-box--accent {
    grid-column: span 4;
    margin-top: 6rem;
  }
}

.sdi-adv-panel__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.sdi-adv-panel__img--grayscale {
  filter: grayscale(100%);
  transition: filter 0.7s ease;
}

.sdi-adv-panel__img--grayscale:hover {
  filter: grayscale(0%);
}

.sdi-adv-panel__grid-single {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4rem;
}

@media (min-width: 1024px) {
  .sdi-adv-panel__grid-single {
    grid-template-columns: repeat(2, 1fr);
  }
}

.sdi-adv-panel__featured {
  position: relative;
  height: 600px;
}

.sdi-adv-panel__glass {
  background: rgba(45, 49, 50, 0.6);
  backdrop-filter: blur(20px);
  padding: 2rem;
  max-width: 20rem;
  position: absolute;
  bottom: -2rem;
  right: -2rem;
  display: none;
}

@media (min-width: 768px) {
  .sdi-adv-panel__glass {
    display: block;
  }
}

.sdi-adv-panel__glass-title {
  font-family: var(--sdi-font-family-serif);
  font-style: italic;
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.sdi-adv-panel__glass-text {
  font-size: 0.875rem;
  opacity: 0.8;
}

.sdi-adv-panel__river-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-bottom: 3rem;
}

@media (min-width: 768px) {
  .sdi-adv-panel__river-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.sdi-adv-panel__river-card {
  position: relative;
  border-left: 1px solid rgba(255, 255, 255, 0.2);
  padding: 1.5rem;
  text-decoration: none;
  color: inherit;
  overflow: hidden;
  transition: all 0.5s ease;
}

.sdi-adv-panel__river-bg {
  position: absolute;
  inset: 0;
  background-color: #fde047;
  opacity: 0;
  transform: translateX(-100%);
  transition: all 0.5s ease-out;
  z-index: 1;
}

.sdi-adv-panel__river-card:hover .sdi-adv-panel__river-bg {
  opacity: 0.8;
  transform: translateX(0);
}

.sdi-adv-panel__river-content {
  position: relative;
  z-index: 10;
  transition: color 0.5s ease;
}

.sdi-adv-panel__river-card:hover .sdi-adv-panel__river-content {
  color: #073731;
}

.sdi-adv-panel__river-title {
  font-family: var(--sdi-font-family-serif);
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.sdi-adv-panel__river-desc {
  font-size: 0.875rem;
  opacity: 0.7;
}

.sdi-adv-panel__featured-box {
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

.sdi-adv-panel__featured-main {
  position: relative;
  height: 400px;
  overflow: hidden;
  border-radius: 0.5rem;
}

.sdi-adv-panel__featured-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s ease;
}

.sdi-adv-panel__featured-main:hover .sdi-adv-panel__featured-img {
  transform: scale(1.05);
}

.sdi-adv-panel__ancestral-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 768px) {
  .sdi-adv-panel__ancestral-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.sdi-adv-panel__ancestral-card {
  position: relative;
  border-left: 1px solid rgba(188, 108, 37, 0.4);
  padding: 2rem;
  text-decoration: none;
  color: inherit;
  overflow: hidden;
  background-color: var(--sdi-color-surface-container-low);
  transition: all 0.5s ease;
}

.sdi-adv-panel__ancestral-bg {
  position: absolute;
  inset: 0;
  background-color: #bc6c25;
  opacity: 0;
  transform: translateX(-100%);
  transition: all 0.5s ease-out;
  z-index: 1;
}

.sdi-adv-panel__ancestral-card:hover .sdi-adv-panel__ancestral-bg {
  opacity: 0.1;
  transform: translateX(0);
}

.sdi-adv-panel__ancestral-number {
  font-family: var(--sdi-font-family-serif);
  font-size: 1.875rem;
  color: #bc6c25;
  opacity: 0.3;
  font-style: italic;
  display: block;
  margin-bottom: 1rem;
}

.sdi-adv-panel__ancestral-title {
  font-family: var(--sdi-font-family-serif);
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.sdi-adv-panel__ancestral-card:hover .sdi-adv-panel__ancestral-title {
  color: #bc6c25;
}

.sdi-adv-standards {
  padding-top: var(--sdi-adv-spacing-standards-padding-y);
  padding-bottom: var(--sdi-adv-spacing-standards-padding-y);
  background-color: var(--sdi-color-surface);
  position: relative;
}

@media (min-width: 768px) {
  .sdi-adv-standards {
    padding-top: var(--sdi-adv-spacing-standards-padding-y-lg);
    padding-bottom: var(--sdi-adv-spacing-standards-padding-y-lg);
  }
}

.sdi-adv-standards__container {
  width: 100%;
  max-width: 80rem;
  margin-left: auto;
  margin-right: auto;
  padding-left: 2rem;
  padding-right: 2rem;
  display: flex;
  flex-direction: column;
  gap: 3rem;
  align-items: stretch;
}

@media (min-width: 768px) {
  .sdi-adv-standards__container {
    padding-left: 4rem;
    padding-right: 4rem;
    flex-direction: row;
  }
}

.sdi-adv-standards__main {
  width: 100%;
  background-color: #f4f5f6;
  padding: 3rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border: 1px solid rgba(0, 0, 0, 0.05);
}

@media (min-width: 768px) {
  .sdi-adv-standards__main {
    width: 70%;
  }
}

@media (min-width: 1024px) {
  .sdi-adv-standards__main {
    padding: 5rem;
  }
}

.sdi-adv-standards__title {
  font-family: var(--sdi-font-family-serif);
  font-size: 2.25rem;
  margin-bottom: 2rem;
  color: #1a1a1a;
}

@media (min-width: 768px) {
  .sdi-adv-standards__title {
    font-size: 3rem;
  }
}

.sdi-adv-standards__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

@media (min-width: 768px) {
  .sdi-adv-standards__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.sdi-adv-standards__item-icon {
  color: #bc6c25;
  font-size: 2.25rem !important;
  margin-bottom: 1rem;
}

.sdi-adv-standards__item-title {
  font-family: var(--sdi-font-family-serif);
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: #1a1a1a;
}

.sdi-adv-standards__item-text {
  color: #4a4a4a;
  font-size: 0.875rem;
}

.sdi-adv-standards__aside {
  width: 100%;
  background-color: #1a1a1a;
  color: #e0e3e4;
  padding: 3rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

@media (min-width: 768px) {
  .sdi-adv-standards__aside {
    width: 30%;
  }
}

.sdi-adv-standards__aside-label {
  font-family: var(--sdi-font-family-sans);
  font-size: 0.75rem;
  letter-spacing: var(--sdi-letter-spacing-widest);
  text-transform: uppercase;
  color: #a8a29e;
}

.sdi-adv-standards__quote {
  font-family: var(--sdi-font-family-serif);
  font-size: 1.875rem;
  font-style: italic;
  line-height: 1.1;
  margin-top: 3rem;
  margin-bottom: 3rem;
}

.sdi-adv-standards__footer {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.sdi-adv-standards__badge {
  width: 2.5rem;
  height: 2.5rem;
  background-color: #bc6c25;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sdi-adv-standards__badge-icon {
  color: #ffffff;
  font-size: 1.25rem !important;
}

.sdi-adv-standards__badge-text {
  font-family: var(--sdi-font-family-sans);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: -0.05em;
}

.sdi-adv-cta {
  padding-top: var(--sdi-adv-spacing-cta-padding-y);
  padding-bottom: var(--sdi-adv-spacing-cta-padding-y);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.sdi-adv-cta__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.sdi-adv-cta__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
}

.sdi-adv-cta__container {
  position: relative;
  z-index: 10;
  width: 100%;
  max-width: 56rem;
  margin-left: auto;
  margin-right: auto;
  padding-left: 2rem;
  padding-right: 2rem;
}

.sdi-adv-cta__title {
  font-family: var(--sdi-font-family-serif);
  font-size: 3rem;
  margin-bottom: 3rem;
}

@media (min-width: 768px) {
  .sdi-adv-cta__title {
    font-size: 4.5rem;
  }
}

.sdi-adv-cta__btn {
  background-color: var(--sdi-color-primary);
  color: var(--sdi-color-on-primary);
  padding: 1.25rem 2.5rem;
  border: none;
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: 0.025em;
  cursor: pointer;
  transition: transform var(--sdi-transition-standard);
}

.sdi-adv-cta__btn:hover {
  transform: scale(1.05);
}

.sdi-adv-cta__btn:active {
  transform: scale(0.95);
}

.sdi-adv-cta__text {
  margin-top: 2rem;
  font-family: var(--sdi-font-family-sans);
  color: var(--sdi-color-on-surface-variant);
  text-transform: uppercase;
  letter-spacing: var(--sdi-letter-spacing-widest);
  font-size: 0.875rem;
}

/* 5. FOOTER & MOBILE NAV (extracted from styles.css) */

.sdi-footer {
  background-color: #022c22;
  padding-top: var(--sdi-footer-spacing-padding-top);
  padding-bottom: var(--sdi-footer-spacing-padding-bottom);
  width: 100%;
}

.sdi-footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sdi-footer-spacing-gap);
  padding-left: var(--sdi-footer-spacing-padding-x);
  padding-right: var(--sdi-footer-spacing-padding-x);
  margin-left: auto;
  margin-right: auto;
  width: 100%;
  max-width: 80rem;
}

@media (min-width: 768px) {
  .sdi-footer__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.sdi-footer__brand-logo {
  display: block;
  font-family: var(--sdi-font-family-serif);
  font-size: var(--sdi-font-size-xl);
  color: var(--sdi-color-primary);
  margin-bottom: 1.5rem;
  text-decoration: none;
}

.sdi-footer__brand-subtitle {
  color: var(--sdi-color-stone-400);
  font-family: var(--sdi-font-family-sans);
  font-size: var(--sdi-font-size-sm);
  letter-spacing: var(--sdi-letter-spacing-widest);
  text-transform: uppercase;
  margin-bottom: 2rem;
}

.sdi-footer__brand-text {
  color: var(--sdi-color-stone-600);
  max-width: 20rem;
  line-height: 1.625;
}

.sdi-footer__nav-title,
.sdi-footer__contact-title {
  color: var(--sdi-color-primary);
  font-family: var(--sdi-font-family-sans);
  font-size: var(--sdi-font-size-sm);
  letter-spacing: var(--sdi-letter-spacing-widest);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.sdi-footer__nav-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.sdi-footer__nav-link {
  color: var(--sdi-color-stone-400);
  text-decoration: none;
  font-family: var(--sdi-font-family-sans);
  font-size: var(--sdi-font-size-sm);
  letter-spacing: var(--sdi-letter-spacing-widest);
  text-transform: uppercase;
  transition: color var(--sdi-transition-fast);
}

.sdi-footer__nav-link:hover {
  color: var(--sdi-color-text-light);
}

.sdi-footer__contact-address {
  font-style: normal;
  color: var(--sdi-color-stone-400);
  margin-bottom: 0.5rem;
  display: block;
}

.sdi-footer__contact-text {
  color: var(--sdi-color-stone-400);
  margin-bottom: 1.5rem;
}

.sdi-footer__contact-socials {
  display: flex;
  gap: 1.5rem;
}

.sdi-footer__social-link {
  color: var(--sdi-color-primary);
  opacity: 0.8;
  transition: opacity var(--sdi-transition-fast);
  text-decoration: none;
}

.sdi-footer__social-link:hover {
  opacity: 1;
}

.sdi-footer__copyright {
  margin-top: var(--sdi-footer-spacing-margin-top-copyright);
  padding-left: var(--sdi-footer-spacing-padding-x);
  padding-right: var(--sdi-footer-spacing-padding-x);
  color: var(--sdi-color-stone-600);
  font-size: var(--sdi-font-size-xs);
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 2rem;
  padding-bottom: 2rem;
}

.sdi-mobile-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: rgba(22, 28, 30, 0.9);
  backdrop-filter: blur(16px);
  border-top: 1px solid rgba(144, 147, 151, 0.1);
  padding: 1rem 2rem;
  z-index: 50;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

@media (min-width: 768px) {
  .sdi-mobile-nav {
    display: none;
  }
}

.sdi-mobile-nav__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  text-decoration: none;
  color: #c4c6ca;
  transition: color var(--sdi-transition-fast);
}

.sdi-mobile-nav__item:focus {
  outline: none;
}

.sdi-mobile-nav__item--active {
  color: var(--sdi-color-primary);
}

.sdi-mobile-nav__item:hover {
  color: var(--sdi-color-primary);
}

.sdi-mobile-nav__label {
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: var(--sdi-letter-spacing-widest);
}

/* 6. PERFORMANCE & UTILITIES */
#hero,
#discovery-tunnels,
#footer-section {
  content-visibility: auto;
  contain-intrinsic-size: 1px 500px;
}