:root {
  /* --- Typography Scale --- */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.9rem  + 0.5vw,  1.125rem);
  --text-lg:   clamp(1.125rem, 0.95rem + 0.85vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1rem    + 1.5vw,  2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);
  --text-hero: clamp(3rem,     0.5rem  + 7vw,    6.5rem);

  /* --- Font Families --- */
  --font-display: 'Playfair Display', serif;
  --font-body: 'DM Sans', sans-serif;

  /* --- Spacing System --- */
  --space-1:  0.25rem;  /*  4px */
  --space-2:  0.5rem;   /*  8px */
  --space-3:  0.75rem;  /* 12px */
  --space-4:  1rem;     /* 16px */
  --space-5:  1.25rem;  /* 20px */
  --space-6:  1.5rem;   /* 24px */
  --space-8:  2rem;     /* 32px */
  --space-10: 2.5rem;   /* 40px */
  --space-12: 3rem;     /* 48px */
  --space-16: 4rem;     /* 64px */
  --space-20: 5rem;     /* 80px */
  --space-24: 6rem;     /* 96px */
  --space-32: 8rem;     /* 128px */

  /* --- Layout & Widths --- */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;
  --content-full: 100%;

  /* --- Radius --- */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* --- Transitions --- */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* ============================================
   LIGHT MODE (Custom Palette)
   ============================================ */
:root, [data-theme="light"] {
  /* --- Surfaces --- */
  --color-bg:             #faf9f5;
  --color-surface:        #f5f3ee;
  --color-surface-2:      #efeae3;
  --color-surface-offset: #f0eadd;
  --color-surface-offset-2: #e8e1d3;
  --color-surface-dynamic: #e0d7c7;
  --color-divider:        #ddd5c8;
  --color-border:         #ddd5c8;

  /* --- Text --- */
  --color-text:           #2c2416;
  --color-text-muted:     #7a7264;
  --color-text-faint:     #b0a89a;
  --color-text-inverse:   #ffffff;

  /* --- Primary Accent (Deep Forest Green) --- */
  --color-primary:        #2d5a3d;
  --color-primary-hover:  #1e4a2e;
  --color-primary-active: #153821;
  --color-primary-highlight: #d1e2d7;

  /* --- Secondary Accent (Warm Gold) --- */
  --color-gold:           #c69c3f;
  --color-gold-hover:     #b0862b;
  --color-gold-active:    #946e1c;
  --color-gold-highlight: #f5eedf;

  /* --- Semantic Colors --- */
  --color-error:          #b91c1c;
  --color-error-hover:    #991b1b;
  
  /* --- Shadows --- */
  --shadow-sm: 0 1px 2px oklch(0.2 0.01 80 / 0.06);
  --shadow-md: 0 4px 12px oklch(0.2 0.01 80 / 0.08);
  --shadow-lg: 0 12px 32px oklch(0.2 0.01 80 / 0.12);
}

/* ============================================
   DARK MODE
   ============================================ */
[data-theme="dark"] {
  /* --- Surfaces --- */
  --color-bg:             #1a1815;
  --color-surface:        #24211d;
  --color-surface-2:      #2c2823;
  --color-surface-offset: #26231e;
  --color-surface-offset-2: #302c26;
  --color-surface-dynamic: #3a362f;
  --color-divider:        #38342c;
  --color-border:         #4a453b;

  /* --- Text --- */
  --color-text:           #e8e4db;
  --color-text-muted:     #a39d91;
  --color-text-faint:     #757167;
  --color-text-inverse:   #2c2416;

  /* --- Primary Accent (Forest Green - adapted for dark) --- */
  --color-primary:        #4e8a64;
  --color-primary-hover:  #3d7552;
  --color-primary-active: #2f5e40;
  --color-primary-highlight: #28362d;

  /* --- Secondary Accent (Warm Gold) --- */
  --color-gold:           #d9b055;
  --color-gold-hover:     #e8c16b;
  --color-gold-active:    #f5d382;
  --color-gold-highlight: #423b28;

  /* --- Semantic Colors --- */
  --color-error:          #ef4444;
  --color-error-hover:    #dc2626;
  
  /* --- Shadows --- */
  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.2);
  --shadow-md: 0 4px 12px oklch(0 0 0 / 0.3);
  --shadow-lg: 0 12px 32px oklch(0 0 0 / 0.4);
}

/* ============================================
   COMPONENT & PAGE STYLES
   ============================================ */

/* --- Layout Utilities --- */
.container {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

.container-narrow {
  max-width: var(--content-narrow);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

section {
  padding-block: clamp(var(--space-12), 8vw, var(--space-24));
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-12);
}

.section-title {
  font-size: var(--text-2xl);
  font-family: var(--font-display);
  margin-bottom: var(--space-4);
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -0.25em;
  left: 50%;
  transform: translateX(-50%);
  width: 2em;
  height: 2px;
  background-color: var(--color-gold);
}

.section-desc {
  color: var(--color-text-muted);
  max-width: 60ch;
  margin-inline: auto;
}

/* --- Header & Nav --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background: linear-gradient(to bottom, oklch(0 0 0 / 0.75) 0%, oklch(0 0 0 / 0) 100%);
  transition: background var(--transition-interactive), 
              padding var(--transition-interactive),
              box-shadow var(--transition-interactive);
  padding-block: var(--space-6);
}

.site-header.scrolled {
  background: oklch(from var(--color-bg) l c h / 0.9);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding-block: var(--space-3);
  box-shadow: var(--shadow-sm);
  border-bottom: 1px solid oklch(from var(--color-border) l c h / 0.5);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: var(--content-wide);
  margin: 0 auto;
  padding-inline: var(--space-6);
}

.logo {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: #fff;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  transition: color var(--transition-interactive);
}

.site-header.scrolled .logo {
  color: var(--color-text);
}

.logo-leaf {
  color: #8abe8a;
  transition: color var(--transition-interactive);
}

.site-header.scrolled .logo-leaf {
  color: var(--color-primary);
}

.nav-menu {
  display: flex;
  gap: var(--space-6);
  align-items: center;
}

.nav-menu a {
  text-decoration: none;
  color: #fff;
  font-size: var(--text-sm);
  font-weight: 500;
  position: relative;
  transition: color var(--transition-interactive);
  text-decoration-color: transparent;
}

.site-header.scrolled .nav-menu a {
  color: var(--color-text);
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--color-gold);
}

.site-header.scrolled .nav-menu a:hover,
.site-header.scrolled .nav-menu a.active {
  color: var(--color-primary);
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-gold);
  transform: scaleX(0);
  transition: transform var(--transition-interactive);
  transform-origin: right;
}

.site-header.scrolled .nav-menu a::after {
  background-color: var(--color-primary);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  color: #fff;
  transition: background-color var(--transition-interactive), color var(--transition-interactive);
}

.site-header.scrolled .icon-btn {
  color: var(--color-text);
}

.icon-btn:hover {
  background-color: oklch(1 0 0 / 0.15);
  color: var(--color-gold);
}

.site-header.scrolled .icon-btn:hover {
  background-color: var(--color-surface-offset);
  color: var(--color-primary);
}

.mobile-menu-btn {
  display: none;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: var(--text-sm);
  text-decoration: none;
  transition: all var(--transition-interactive);
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-primary:active {
  background-color: var(--color-primary-active);
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

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

.btn-outline:hover {
  background-color: var(--color-surface);
  border-color: var(--color-text);
  transform: translateY(-1px);
}

/* --- Hero Section --- */
.hero {
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 5rem;
  padding-bottom: 2rem;
}

.hero-img {
  position: absolute;
  top: -10%;
  left: 0;
  right: 0;
  width: 100%;
  height: 120%;
  object-fit: cover;
  z-index: -2;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to right, oklch(0 0 0 / 0.7) 0%, oklch(0 0 0 / 0.4) 45%, oklch(0 0 0 / 0.1) 100%),
    linear-gradient(to bottom, oklch(0 0 0 / 0.3) 0%, oklch(0 0 0 / 0.45) 100%);
  z-index: -1;
}

.hero-content {
  color: #fff;
  background: radial-gradient(ellipse at 35% 50%, oklch(0 0 0 / 0.5) 0%, oklch(0 0 0 / 0.3) 45%, oklch(0 0 0 / 0) 80%);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border-radius: 0;
  padding: var(--space-16) var(--space-12);
  border: none;
  margin-left: 0;
  max-width: 800px;
}

.hero-title {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  line-height: 1.1;
  margin-bottom: var(--space-6);
  text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.hero-subtitle {
  font-size: var(--text-lg);
  font-weight: 300;
  margin-bottom: var(--space-8);
  opacity: 0.9;
  max-width: 600px;
}

/* --- Notice/Alert Card --- */
.alert-card {
  background-color: var(--color-surface);
  border-left: 4px solid var(--color-error);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  padding: var(--space-6) var(--space-8);
  box-shadow: var(--shadow-sm);
}

.alert-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  color: var(--color-error);
}

.alert-header h3 {
  font-size: var(--text-lg);
  margin: 0;
}

.alert-content p {
  margin-bottom: var(--space-4);
}

.alert-content ul {
  padding-left: var(--space-6);
  margin-bottom: var(--space-4);
  list-style-type: disc;
}

.alert-content li {
  margin-bottom: var(--space-2);
}

/* --- Cards Grid --- */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  gap: var(--space-6);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 350px), 1fr));
  gap: var(--space-8);
}

.card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-interactive), box-shadow var(--transition-interactive);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.card-icon {
  width: 48px;
  height: 48px;
  background-color: var(--color-primary-highlight);
  color: var(--color-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-6);
}

.card-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  margin-bottom: var(--space-3);
  color: var(--color-text);
}

a.card,
a.card:hover {
  color: var(--color-text);
  text-decoration: none;
}

a.card .card-title {
  color: var(--color-text);
}

.card-body {
  color: var(--color-text-muted);
  flex-grow: 1;
}

/* --- Table --- */
.table-container {
  overflow-x: auto;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

th {
  background-color: var(--color-surface-offset);
  padding: var(--space-4) var(--space-6);
  font-weight: 600;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
}

td {
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-muted);
}

tr:last-child td {
  border-bottom: none;
}

/* --- Accordion (Architectural Standards) --- */
.accordion {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-surface);
}

.accordion-item {
  border-bottom: 1px solid var(--color-border);
}

.accordion-item:last-child {
  border-bottom: none;
}

.accordion-header {
  width: 100%;
  text-align: left;
  padding: var(--space-5) var(--space-6);
  background: transparent;
  font-size: var(--text-base);
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--color-text);
}

.accordion-header:hover {
  background-color: var(--color-surface-offset);
}

.accordion-icon {
  transition: transform var(--transition-interactive);
}

.accordion-header.active .accordion-icon {
  transform: rotate(180deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
  background-color: var(--color-surface-2);
}

.accordion-content-inner {
  padding: var(--space-5) var(--space-6);
  color: var(--color-text-muted);
}

/* --- Feature Section w/ Image --- */
.feature-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
}

.feature-img-wrapper {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4/3;
}

.feature-img-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* --- Calendar Timeline --- */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding: var(--space-8) 0;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 24px;
  width: 2px;
  background: var(--color-border);
}

.timeline-item {
  position: relative;
  padding-left: 64px;
  margin-bottom: var(--space-8);
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-marker {
  position: absolute;
  left: 16px;
  top: 4px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 4px solid var(--color-bg);
  box-shadow: 0 0 0 2px var(--color-primary-highlight);
}

.timeline-date {
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--space-1);
}

.timeline-content {
  background: var(--color-surface);
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

/* --- Members Login --- */
.login-container {
  max-width: 480px;
  margin: 0 auto;
  background: var(--color-surface);
  padding: var(--space-10);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  text-align: center;
}

.login-icon {
  width: 64px;
  height: 64px;
  background: var(--color-surface-offset);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-6);
  color: var(--color-primary);
}

.form-group {
  margin-bottom: var(--space-6);
  text-align: left;
}

.form-label {
  display: block;
  margin-bottom: var(--space-2);
  font-weight: 500;
  color: var(--color-text);
}

.form-input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  transition: all var(--transition-interactive);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-highlight);
}

#logged-in-state {
  display: none;
}

/* --- Maps --- */
.map-container {
  width: 100%;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  height: 500px;
}

/* --- Footer --- */
.site-footer {
  background-color: var(--color-surface-2);
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-16) var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

.footer-col h4 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  margin-bottom: var(--space-4);
}

.footer-links {
  list-style: none;
  padding: 0;
}

.footer-links li {
  margin-bottom: var(--space-2);
}

.footer-links a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-interactive);
}

.footer-links a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-divider);
  color: var(--color-text-faint);
  font-size: var(--text-sm);
}

/* --- Animations --- */
.reveal-up {
  opacity: 0;
  animation: reveal-fade-up 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes reveal-fade-up {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@supports (animation-timeline: scroll()) {
  .scroll-reveal {
    opacity: 0;
    animation: reveal-fade linear both;
    animation-timeline: view();
    animation-range: entry 10% cover 30%;
  }
  
  @keyframes reveal-fade {
    to { opacity: 1; }
  }
}

.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: 50%;
  border-top-color: #fff;
  animation: spin 1s ease-in-out infinite;
}

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

/* --- Banner Divider --- */
.banner-divider {
  position: relative;
  width: 100%;
  height: clamp(200px, 30vh, 400px);
  margin-block: var(--space-16);
  overflow: hidden;
}

.banner-divider img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.banner-divider .banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, oklch(from var(--color-primary) l c h / 0.8), transparent);
  mix-blend-mode: multiply;
}

[data-theme="dark"] .banner-divider .banner-overlay {
  background: linear-gradient(to right, oklch(from var(--color-bg) l c h / 0.9), oklch(from var(--color-bg) l c h / 0.4));
}

/* 11. New Components (Forms, Modals, Badges)
-------------------------------------------------- */

/* Form Select */
.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-4) center;
  background-size: 16px;
  padding-right: var(--space-12);
}

[data-theme="dark"] .form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23e8e4db' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
}

/* File Upload Area */
.file-upload-area {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-8);
  text-align: center;
  background-color: var(--color-surface-2);
  transition: all var(--transition-interactive);
}

.file-upload-area:hover {
  border-color: var(--color-primary);
  background-color: var(--color-surface);
}

/* Status Badges */
.status-badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  border-radius: 9999px;
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.status-badge--pending {
  background-color: color-mix(in oklch, var(--color-gold) 15%, transparent);
  color: var(--color-gold-active);
  border: 1px solid color-mix(in oklch, var(--color-gold) 30%, transparent);
}

.status-badge--paid {
  background-color: color-mix(in oklch, var(--color-error) 15%, transparent);
  color: var(--color-error);
  border: 1px solid color-mix(in oklch, var(--color-error) 30%, transparent);
}

/* Coming Soon Badge */
.coming-soon-badge {
  display: inline-block;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-style: italic;
  padding: var(--space-1) var(--space-3);
  background-color: var(--color-surface-2);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

/* Form Success State */
.form-success {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-8);
  background-color: color-mix(in oklch, var(--color-primary) 5%, transparent);
  border: 1px solid color-mix(in oklch, var(--color-primary) 20%, transparent);
  border-radius: var(--radius-md);
  color: var(--color-text);
  animation: fadeIn 0.4s ease-out;
}

/* Modal Styles */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background-color: color-mix(in oklch, var(--color-text) 50%, transparent);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-interactive);
}

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

.modal-panel {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 640px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  transform: translateY(20px) scale(0.95);
  transition: all var(--transition-interactive);
  border: 1px solid var(--color-border);
}

.modal-backdrop.active .modal-panel {
  transform: translateY(0) scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-6) var(--space-8);
  border-bottom: 1px solid var(--color-border);
}

.modal-close {
  color: var(--color-text-muted);
  transition: color var(--transition-interactive);
  background: none;
  border: none;
  cursor: pointer;
}

.modal-close:hover {
  color: var(--color-text);
}

.modal-body {
  padding: var(--space-8);
  overflow-y: auto;
  overscroll-behavior: contain;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* --- Mobile Responsiveness --- */
@media (max-width: 992px) {
  .feature-split {
    grid-template-columns: 1fr;
  }
  
  .feature-split:nth-child(even) .feature-img-wrapper {
    order: -1;
  }
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: block;
    background: none;
    border: none;
    color: var(--color-text);
  }

  .nav-menu {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--color-bg);
    flex-direction: column;
    padding: var(--space-6);
    box-shadow: var(--shadow-md);
    border-bottom: 1px solid var(--color-border);
    clip-path: inset(0 0 100% 0);
    transition: clip-path 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  }

  .nav-menu.active {
    clip-path: inset(0 0 0 0);
  }
  
  .hero-title {
    font-size: var(--text-3xl);
  }

  .hero-content {
    padding: var(--space-10) var(--space-6);
    margin-left: 0;
  }

  .mobile-menu-btn {
    color: #fff;
  }

  .site-header.scrolled .mobile-menu-btn {
    color: var(--color-text);
  }
  
  .alert-card {
    border-radius: var(--radius-lg);
    border-left: none;
    border-top: 4px solid var(--color-error);
    padding: var(--space-4) var(--space-5);
  }

  .map-container {
    height: 350px;
  }
  
  .timeline::before {
    left: 16px;
  }
  
  .timeline-item {
    padding-left: 48px;
  }
  
  .timeline-marker {
    left: 8px;
  }
}