/* ==========================================================================
   Kalavava Design System & Style Sheet
   ========================================================================== */

/* 1. Imports & Variables */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Playfair+Display:ital,wght@0,400;0,500;0,600;0,700;1,400&display=swap');

:root {
  --color-jade: #1b3322;
  --color-jade-light: #2c4d36;
  --color-jade-dark: #0f1f14;
  --color-sand: #fbf9f5;
  --color-sand-dark: #f3eee6;
  --color-charcoal: #2a2a2a;
  --color-charcoal-light: #444444;
  --color-gold: #c5a059;
  --color-gold-hover: #b59049;
  --color-white: #ffffff;
  
  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  
  --transition-smooth: all 0.5s cubic-bezier(0.25, 1, 0.5, 1);
  --transition-fast: all 0.2s ease-in-out;
  
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 8rem;
  
  --max-width: 1200px;
}

/* 2. Reset & Base Styles */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 500;
  color: var(--color-jade);
  line-height: 1.25;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 3.5vw, 3rem);
  margin-bottom: var(--spacing-md);
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  margin-bottom: var(--spacing-sm);
}

p {
  font-weight: 300;
  font-size: 1.125rem;
  color: var(--color-charcoal-light);
  margin-bottom: var(--spacing-md);
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-fast);
}

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

/* 3. Reusable UI Components & Layout Utilities */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  width: 100%;
}

.section-padding {
  padding: var(--spacing-xl) 0;
}

/* Buttons */
.btn {
  display: inline-block;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 0.9rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 1rem 2.25rem;
  border-radius: 0;
  transition: var(--transition-smooth);
  cursor: pointer;
  position: relative;
}

.btn-primary {
  background-color: var(--color-gold);
  color: var(--color-white);
  border: 1px solid var(--color-gold);
}

.btn-primary::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 1px solid var(--color-gold);
  transform: scale(1);
  opacity: 0;
  transition: var(--transition-smooth);
}

.btn-primary:hover {
  background-color: transparent;
  color: var(--color-gold);
  transform: translateY(-2px);
}

.btn-primary:hover::after {
  transform: scale(1.08, 1.15);
  opacity: 1;
}

.btn-outline {
  border: 1px solid var(--color-jade);
  color: var(--color-jade);
  background-color: transparent;
}

.btn-outline:hover {
  background-color: var(--color-jade);
  color: var(--color-sand);
  transform: translateY(-2px);
}

.btn-white {
  background-color: var(--color-sand);
  color: var(--color-jade);
  border: 1px solid var(--color-sand);
}

.btn-white:hover {
  background-color: transparent;
  color: var(--color-sand);
  border-color: var(--color-sand);
  transform: translateY(-2px);
}

/* 4. Global Navigation & Header */
.site-header {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  padding: 1.5rem 0;
  transition: var(--transition-smooth);
}

.site-header.scrolled {
  position: fixed;
  background-color: rgba(27, 51, 34, 0.95);
  backdrop-filter: blur(10px);
  padding: 1rem 0;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
  border-bottom: 1px solid rgba(197, 160, 89, 0.2);
}

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

.logo-link {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: 0.1em;
  color: var(--color-sand);
  display: flex;
  flex-direction: column;
}

.logo-sub {
  font-family: var(--font-sans);
  font-weight: 300;
  font-size: 0.65rem;
  letter-spacing: 0.3em;
  color: var(--color-gold);
  text-transform: uppercase;
  margin-top: -3px;
}

.nav-menu {
  display: flex;
  gap: var(--spacing-md);
  list-style: none;
  align-items: center;
}

.nav-link {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(251, 249, 245, 0.85);
  padding: 0.5rem 0;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-gold);
  transition: var(--transition-smooth);
}

.nav-link:hover, .nav-link.active {
  color: var(--color-sand);
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

/* Burger Menu */
.burger-menu {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 30px;
  height: 20px;
  position: relative;
  z-index: 105;
}

.burger-line {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-sand);
  position: absolute;
  left: 0;
  transition: var(--transition-smooth);
}

.burger-line:nth-child(1) { top: 0; }
.burger-line:nth-child(2) { top: 9px; }
.burger-line:nth-child(3) { top: 18px; }

/* Mobile Menu Open State */
.burger-menu.open .burger-line:nth-child(1) {
  transform: rotate(45deg);
  top: 9px;
}
.burger-menu.open .burger-line:nth-child(2) {
  opacity: 0;
}
.burger-menu.open .burger-line:nth-child(3) {
  transform: rotate(-45deg);
  top: 9px;
}

/* 5. Home Hero & Page Heros */
.hero-home {
  height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-sand);
  text-align: center;
  overflow: hidden;
  background-color: var(--color-jade);
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
  filter: brightness(0.4) contrast(1.05);
  transform: scale(1.05);
  animation: zoomSlow 20s infinite alternate;
}

@keyframes zoomSlow {
  from { transform: scale(1); }
  to { transform: scale(1.08); }
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, rgba(27,51,34,0.3) 0%, rgba(27,51,34,0.7) 100%);
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 10;
  max-width: 900px;
  padding: 0 var(--spacing-md);
  margin-top: 5rem;
}

.hero-title {
  color: var(--color-sand);
  margin-bottom: var(--spacing-sm);
  text-transform: uppercase;
  font-size: clamp(2rem, 5.5vw, 4rem);
  letter-spacing: 0.05em;
  line-height: 1.1;
}

.hero-title span {
  display: block;
  font-family: var(--font-serif);
  font-size: 0.4em;
  color: var(--color-gold);
  letter-spacing: 0.35em;
  margin-bottom: 0.5rem;
  font-weight: 300;
  text-transform: uppercase;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  color: rgba(251, 249, 245, 0.9);
  max-width: 700px;
  margin: 0 auto var(--spacing-md) auto;
  font-weight: 300;
}

/* Inner Page Hero (Standard) */
.hero-inner {
  height: 65vh;
  position: relative;
  display: flex;
  align-items: center;
  color: var(--color-sand);
  background-color: var(--color-jade);
  overflow: hidden;
}

.hero-inner .hero-content {
  text-align: left;
  margin-top: 6rem;
}

.hero-inner .hero-title {
  font-size: clamp(2.2rem, 4.5vw, 3.5rem);
}

.hero-inner-split {
  height: 75vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: stretch;
  background-color: var(--color-jade);
  color: var(--color-sand);
  position: relative;
}

.hero-split-left {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--spacing-xl) var(--spacing-xl) var(--spacing-lg) var(--spacing-xl);
  z-index: 10;
  background-color: var(--color-jade);
}

.hero-split-right {
  position: relative;
  overflow: hidden;
}

.hero-split-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.7);
}

/* 6. Layout Style: Alternating Text & Image Blocks */
.alternating-section {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.block-row {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--spacing-xl);
  align-items: center;
}

.block-row.reverse {
  grid-template-columns: 1.2fr 1fr;
}

.block-row.reverse .block-text {
  order: 2;
}
.block-row.reverse .block-media {
  order: 1;
}

.block-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.block-tag {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: var(--spacing-xs);
}

.block-title {
  color: var(--color-jade);
  margin-bottom: var(--spacing-sm);
  position: relative;
}

.block-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 1px;
  background-color: var(--color-gold);
  margin-top: 1rem;
}

.block-desc {
  color: var(--color-charcoal-light);
  font-size: 1.1rem;
  font-weight: 300;
}

.block-media {
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.05);
}

.block-img {
  width: 100%;
  height: 500px;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.block-media:hover .block-img {
  transform: scale(1.03);
}

/* 7. Home Page Specific Components */
/* Contrast section */
.contrast-section {
  background-color: var(--color-sand-dark);
  text-align: center;
}

.contrast-wrap {
  max-width: 800px;
  margin: 0 auto;
}

.contrast-quote {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 2.5vw, 2.2rem);
  line-height: 1.4;
  color: var(--color-jade);
  font-style: italic;
  margin-bottom: var(--spacing-md);
}

.contrast-divider {
  width: 80px;
  height: 2px;
  background-color: var(--color-gold);
  margin: 2rem auto;
}

/* Anchors */
.anchors-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.anchor-card {
  background-color: var(--color-white);
  padding: var(--spacing-md);
  border: 1px solid rgba(27, 51, 34, 0.05);
  transition: var(--transition-smooth);
  position: relative;
}

.anchor-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 15px 35px rgba(27, 51, 34, 0.05);
  border-color: rgba(197, 160, 89, 0.3);
}

.anchor-num {
  font-family: var(--font-serif);
  font-size: 3rem;
  color: rgba(197, 160, 89, 0.3);
  margin-bottom: var(--spacing-xs);
  line-height: 1;
}

.anchor-title {
  color: var(--color-jade);
  font-size: 1.4rem;
  margin-bottom: var(--spacing-xs);
}

.anchor-desc {
  font-size: 0.95rem;
  color: var(--color-charcoal-light);
  line-height: 1.6;
}

/* 8. Page 3 Experience - Tiered Offerings & Water Adventures */
.interactive-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.offering-card {
  background-color: var(--color-white);
  padding: var(--spacing-lg) var(--spacing-md);
  text-align: center;
  border-top: 3px solid var(--color-jade);
  transition: var(--transition-smooth);
  box-shadow: 0 10px 30px rgba(0,0,0,0.02);
}

.offering-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(27, 51, 34, 0.05);
  border-top-color: var(--color-gold);
}

.offering-icon {
  margin: 0 auto var(--spacing-md) auto;
  width: 64px;
  height: 64px;
  color: var(--color-gold);
  display: flex;
  align-items: center;
  justify-content: center;
}

.offering-icon svg {
  width: 100%;
  height: 100%;
}

.offering-title {
  font-size: 1.5rem;
  color: var(--color-jade);
  margin-bottom: var(--spacing-sm);
}

.offering-body {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--color-charcoal-light);
}

.full-width-media {
  position: relative;
  height: 70vh;
  overflow: hidden;
  margin-top: var(--spacing-xl);
}

.full-width-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.7);
}

.full-width-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: var(--spacing-xl) 0;
  background: linear-gradient(to top, rgba(27, 51, 34, 0.9) 0%, rgba(27, 51, 34, 0) 100%);
  color: var(--color-sand);
}

.full-width-content {
  max-width: 800px;
}

.full-width-title {
  color: var(--color-sand);
  margin-bottom: var(--spacing-sm);
}

.full-width-desc {
  color: rgba(251, 249, 245, 0.9);
  font-size: 1.1rem;
}

/* 9. Page 4 Philosophy - Infographics & Metrics */
.philosophy-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
}

/* Infographic styling */
.infographic-wrapper {
  background-color: var(--color-white);
  padding: var(--spacing-lg);
  border: 1px dashed rgba(197, 160, 89, 0.4);
  position: relative;
  overflow: hidden;
}

.info-diagram {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
  position: relative;
}

.info-node {
  background-color: var(--color-sand);
  border: 1px solid var(--color-jade);
  padding: 1rem 1.5rem;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-jade);
  text-align: center;
  min-width: 250px;
  position: relative;
  z-index: 2;
  transition: var(--transition-smooth);
}

.info-node:hover {
  background-color: var(--color-jade);
  color: var(--color-sand);
  transform: scale(1.05);
}

.info-arrow {
  color: var(--color-gold);
  width: 24px;
  height: 24px;
  z-index: 2;
}

.info-arrow svg {
  transform: rotate(90deg);
  width: 100%;
  height: 100%;
}

.info-connecting-line {
  position: absolute;
  top: 40px;
  bottom: 40px;
  width: 1px;
  background-color: rgba(197, 160, 89, 0.3);
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
}

/* Impact Metrics */
.metrics-section {
  background-color: var(--color-sand-dark);
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
  text-align: center;
}

.metric-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.metric-number {
  font-family: var(--font-serif);
  font-size: clamp(3.5rem, 6vw, 5.5rem);
  color: var(--color-gold);
  font-weight: 700;
  line-height: 1;
  margin-bottom: var(--spacing-xs);
}

.metric-label {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-jade);
  margin-bottom: var(--spacing-xs);
}

.metric-desc {
  font-size: 0.95rem;
  color: var(--color-charcoal-light);
  max-width: 260px;
}

/* 10. Page 5 Journey - Accommodations, Conduct & Booking Form */
/* Flip Cards */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.accommodation-card {
  perspective: 1500px;
  height: 450px;
}

.card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  text-align: center;
  transition: transform 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  transform-style: preserve-3d;
  cursor: pointer;
}

.accommodation-card:hover .card-inner {
  transform: rotateY(180deg);
}

.card-front, .card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  display: flex;
  flex-direction: column;
  border: 1px solid rgba(27, 51, 34, 0.05);
}

.card-front {
  background-color: var(--color-white);
}

.card-img-wrap {
  width: 100%;
  height: 60%;
  overflow: hidden;
  background-color: var(--color-jade);
}

.card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.card-front-content {
  padding: var(--spacing-md);
  display: flex;
  flex-direction: column;
  justify-content: center;
  flex-grow: 1;
}

.card-title {
  font-size: 1.4rem;
  color: var(--color-jade);
  margin-bottom: var(--spacing-xs);
}

.card-subtitle {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-gold);
}

.card-back {
  background-color: var(--color-jade);
  color: var(--color-sand);
  transform: rotateY(180deg);
  padding: var(--spacing-lg) var(--spacing-md);
  justify-content: center;
  align-items: center;
}

.card-back h3 {
  color: var(--color-gold);
  margin-bottom: var(--spacing-sm);
}

.card-back p {
  color: rgba(251, 249, 245, 0.85);
  font-size: 0.95rem;
  margin-bottom: var(--spacing-md);
  max-width: 280px;
}

/* Protocol Checklist */
.protocol-section {
  background-color: var(--color-white);
}

.protocol-box {
  border: 1px solid rgba(197, 160, 89, 0.4);
  padding: var(--spacing-lg);
  max-width: 800px;
  margin: 0 auto;
  position: relative;
}

.protocol-header {
  text-align: center;
  margin-bottom: var(--spacing-md);
}

.protocol-header h2::after {
  content: '';
  display: block;
  width: 50px;
  height: 1px;
  background-color: var(--color-gold);
  margin: 1rem auto 0 auto;
}

.protocol-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.protocol-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--spacing-sm);
  align-items: start;
}

.protocol-icon-check {
  width: 24px;
  height: 24px;
  color: var(--color-gold);
  margin-top: 3px;
}

.protocol-item-title {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--color-jade);
  margin-bottom: 2px;
}

.protocol-item-desc {
  font-size: 0.95rem;
  color: var(--color-charcoal-light);
}

/* 11. Elegant Booking Form */
.booking-section {
  background-color: var(--color-sand-dark);
}

.booking-wrapper {
  max-width: 750px;
  margin: 0 auto;
  background-color: var(--color-white);
  padding: var(--spacing-lg);
  box-shadow: 0 25px 50px rgba(27, 51, 34, 0.04);
  border: 1px solid rgba(27, 51, 34, 0.05);
  position: relative;
}

.booking-header {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.booking-header h2 {
  color: var(--color-jade);
  margin-bottom: var(--spacing-xs);
}

.booking-header p {
  font-size: 0.95rem;
  color: var(--color-charcoal-light);
}

.booking-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
}

.form-group {
  display: flex;
  flex-direction: column;
  position: relative;
}

.form-group.full-width {
  grid-column: span 2;
}

.form-label {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-jade);
  margin-bottom: 6px;
  font-weight: 500;
}

.form-input, .form-select, .form-textarea {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  padding: 0.85rem 1rem;
  background-color: var(--color-sand);
  border: 1px solid rgba(27, 51, 34, 0.1);
  color: var(--color-charcoal);
  border-radius: 0;
  transition: var(--transition-fast);
  width: 100%;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  background-color: var(--color-white);
  border-color: var(--color-gold);
  box-shadow: 0 0 0 3px rgba(197, 160, 89, 0.1);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

/* Custom Checkboxes for Tiers */
.form-checkbox-group {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-sm);
  margin-top: 5px;
}

.checkbox-label {
  display: flex;
  flex-direction: column;
  padding: var(--spacing-sm);
  background-color: var(--color-sand);
  border: 1px solid rgba(27, 51, 34, 0.08);
  cursor: pointer;
  transition: var(--transition-fast);
  position: relative;
}

.checkbox-label:hover {
  border-color: var(--color-gold);
}

.checkbox-label input {
  position: absolute;
  opacity: 0;
  cursor: pointer;
}

.checkbox-custom-box {
  width: 18px;
  height: 18px;
  border: 1px solid rgba(27, 51, 34, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 8px;
  background-color: var(--color-white);
  transition: var(--transition-fast);
}

.checkbox-label input:checked ~ .checkbox-custom-box {
  background-color: var(--color-gold);
  border-color: var(--color-gold);
}

.checkbox-custom-box::after {
  content: '';
  width: 6px;
  height: 10px;
  border: solid var(--color-white);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
  display: none;
}

.checkbox-label input:checked ~ .checkbox-custom-box::after {
  display: block;
}

.checkbox-title {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: var(--color-jade);
  margin-bottom: 2px;
}

.checkbox-desc {
  font-size: 0.75rem;
  color: var(--color-charcoal-light);
  line-height: 1.3;
}

.checkbox-label input:checked ~ .checkbox-title {
  color: var(--color-gold-hover);
}

.checkbox-label.selected {
  border-color: var(--color-gold);
  background-color: rgba(197, 160, 89, 0.03);
}

.error-message {
  font-size: 0.75rem;
  color: #c0392b;
  margin-top: 4px;
  display: none;
}

.form-group.has-error .form-input,
.form-group.has-error .form-select,
.form-group.has-error .form-textarea {
  border-color: #c0392b;
}

.form-group.has-error .error-message {
  display: block;
}

/* Success Modal Overlay */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(27, 51, 34, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-smooth);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-box {
  background-color: var(--color-sand);
  padding: var(--spacing-lg);
  max-width: 500px;
  width: 90%;
  text-align: center;
  border: 1px solid var(--color-gold);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.2);
  transform: translateY(30px);
  transition: var(--transition-smooth);
}

.modal-overlay.active .modal-box {
  transform: translateY(0);
}

.modal-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto var(--spacing-md) auto;
  color: var(--color-gold);
}

.modal-title {
  margin-bottom: var(--spacing-sm);
  color: var(--color-jade);
}

.modal-desc {
  color: var(--color-charcoal-light);
  margin-bottom: var(--spacing-md);
  font-size: 1rem;
}

/* 12. Footer */
.site-footer {
  background-color: var(--color-jade-dark);
  color: var(--color-sand);
  padding: var(--spacing-lg) 0 var(--spacing-md) 0;
  border-top: 1px solid rgba(197, 160, 89, 0.2);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

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

.footer-logo {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  color: var(--color-sand);
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
  letter-spacing: 0.05em;
}

.footer-logo-sub {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  color: var(--color-gold);
  text-transform: uppercase;
  margin-top: -3px;
  margin-bottom: var(--spacing-sm);
}

.footer-desc {
  font-size: 0.9rem;
  color: rgba(251, 249, 245, 0.7);
  line-height: 1.6;
}

.footer-col-title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--color-gold);
  margin-bottom: var(--spacing-sm);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-link {
  font-size: 0.9rem;
  color: rgba(251, 249, 245, 0.7);
}

.footer-link:hover {
  color: var(--color-sand);
  transform: translateX(3px);
}

.footer-bottom {
  border-top: 1px solid rgba(251, 249, 245, 0.1);
  padding-top: var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: rgba(251, 249, 245, 0.5);
}

.footer-bottom-links {
  display: flex;
  gap: var(--spacing-md);
}

/* 13. Dynamic Reveal Classes & Animations */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* Responsive Styles */
@media (max-width: 1024px) {
  :root {
    --spacing-xl: 5rem;
    --spacing-lg: 3rem;
  }
  
  .block-row, .block-row.reverse {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
  }
}

@media (max-width: 768px) {
  :root {
    --spacing-xl: 4rem;
    --spacing-lg: 2.5rem;
  }
  
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    background-color: var(--color-jade);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    z-index: 100;
    transition: var(--transition-smooth);
    box-shadow: -5px 0 30px rgba(0, 0, 0, 0.3);
  }
  
  .nav-menu.open {
    right: 0;
  }
  
  .burger-menu {
    display: block;
  }
  
  .hero-inner-split {
    grid-template-columns: 1fr;
    height: auto;
  }
  
  .hero-split-left {
    padding: var(--spacing-xl) var(--spacing-md) var(--spacing-lg) var(--spacing-md);
  }
  
  .hero-split-right {
    height: 350px;
  }
  
  .block-row, .block-row.reverse {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .block-row.reverse .block-text {
    order: 1;
  }
  .block-row.reverse .block-media {
    order: 2;
  }
  
  .block-img {
    height: 300px;
  }
  
  .anchors-grid, .interactive-grid, .cards-grid, .metrics-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .philosophy-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: var(--spacing-sm);
    text-align: center;
  }
  
  .form-row {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .form-group.full-width {
    grid-column: span 1;
  }
  
  .form-checkbox-group {
    grid-template-columns: 1fr;
  }
}

/* 14. Sponsors Section */
.sponsors-section {
  background-color: var(--color-white);
  border-top: 1px solid rgba(27, 51, 34, 0.05);
  border-bottom: 1px solid rgba(27, 51, 34, 0.05);
  text-align: center;
  padding: var(--spacing-lg) 0;
}

.sponsors-grid {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-xl);
  margin-top: var(--spacing-md);
  flex-wrap: wrap;
}

.sponsor-logo-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 60px;
  max-width: 180px;
}

.sponsor-logo-wrap.featured {
  height: 110px;
  max-width: 300px;
}

.sponsor-logo {
  max-height: 100%;
  max-width: 100%;
  object-fit: contain;
  opacity: 0.6;
  filter: grayscale(100%);
  transition: var(--transition-smooth);
}

.sponsor-logo.colored {
  opacity: 1;
  filter: none;
}

.sponsor-logo:hover {
  opacity: 0.95;
  filter: none;
}

@media (max-width: 768px) {
  .sponsors-grid {
    gap: var(--spacing-md);
  }
  .sponsor-logo-wrap {
    height: 45px;
    max-width: 130px;
  }
  .sponsor-logo-wrap.featured {
    height: 75px;
    max-width: 200px;
  }
}