/* ==========================================================================
   QUEEN CITY CROSSROADS — DESIGN SYSTEM & MAIN STYLESHEET (V1)
   Architecture: Semantic Modern Vanilla CSS3, Baseline-First, Zero Frameworks
   Target: GitHub Pages | WCAG 2.1 Level AA / AAA Compliant
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS Custom Properties (Design Tokens)
   -------------------------------------------------------------------------- */
:root {
  /* Brand Color Palette ("Regal & Warm Historic") */
  --color-canvas: #F9F6F0;          /* Warm Parchment - Base Canvas */
  --color-canvas-alt: #EFECE6;      /* Muted Stone Parchment - Secondary Canvas */
  --color-text-primary: #1F2923;    /* Deep Crown Charcoal - Main Typography (13.8:1 AAA) */
  --color-text-muted: #4A564E;      /* Muted Forest Charcoal - Secondary Copy (7.5:1 AAA) */
  --color-brand-primary: #2D5A43;   /* Charlotte Queen Green - Primary Brand & Headings (7.2:1 AAA) */
  --color-brand-primary-dark: #1E3F2E; /* Deeper Green for interactive hover */
  --color-brand-primary-light: #3D7558; /* Lighter Green accent */
  --color-brand-secondary: #C86446; /* Historic Terracotta - CTA & Accent (4.8:1 AA) */
  --color-brand-secondary-hover: #B05337; /* Terracotta Hover Depth */
  --color-accent-detail: #D4A359;   /* Warm Ochre / Brass - Structural Borders & Detail */
  --color-accent-subtle: rgba(212, 163, 89, 0.22); /* Ochre Wash */
  --color-white: #FFFFFF;
  --color-card-bg: #FFFFFF;
  --color-card-border: rgba(45, 90, 67, 0.12);
  --color-focus-ring: #C86446;

  /* Modern Color Functions (Baseline-First HSL & OKLCH Alignment) */
  --color-brand-primary-hsl: hsl(150 33% 26%);
  --color-brand-secondary-oklch: oklch(0.58 0.14 42);
  --color-accent-detail-hsl: hsl(37 59% 59%);

  /* Typography Stacks */
  --font-serif: "Playfair Display", "Cinzel", "Georgia", "Charter", "Palatino", serif;
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Code", Menlo, monospace;

  /* Fluid Font Scale (clamp) */
  --step--1: clamp(0.85rem, 0.82rem + 0.15vw, 0.95rem);
  --step-0: clamp(1.00rem, 0.96rem + 0.22vw, 1.125rem);
  --step-1: clamp(1.18rem, 1.11rem + 0.35vw, 1.35rem);
  --step-2: clamp(1.40rem, 1.30rem + 0.55vw, 1.70rem);
  --step-3: clamp(1.75rem, 1.55rem + 0.95vw, 2.25rem);
  --step-4: clamp(2.15rem, 1.85rem + 1.50vw, 3.00rem);
  --step-5: clamp(2.65rem, 2.20rem + 2.25vw, 4.00rem);

  /* Fluid Spacing Scale */
  --space-2xs: clamp(0.25rem, 0.2rem + 0.25vw, 0.5rem);
  --space-xs:  clamp(0.5rem, 0.45rem + 0.3vw, 0.75rem);
  --space-s:   clamp(0.75rem, 0.65rem + 0.5vw, 1.0rem);
  --space-m:   clamp(1.0rem, 0.85rem + 0.75vw, 1.5rem);
  --space-l:   clamp(1.5rem, 1.25rem + 1.25vw, 2.25rem);
  --space-xl:  clamp(2.0rem, 1.65rem + 1.75vw, 3.25rem);
  --space-2xl: clamp(3.0rem, 2.40rem + 3.0vw, 5.0rem);
  --space-3xl: clamp(4.0rem, 3.20rem + 4.0vw, 7.0rem);

  /* Elevation Shadows */
  --shadow-sm: 0 1px 3px rgba(31, 41, 35, 0.08), 0 1px 2px rgba(31, 41, 35, 0.04);
  --shadow-md: 0 4px 12px rgba(31, 41, 35, 0.08), 0 2px 4px rgba(31, 41, 35, 0.04);
  --shadow-lg: 0 10px 24px rgba(31, 41, 35, 0.10), 0 4px 8px rgba(31, 41, 35, 0.05);
  --shadow-xl: 0 20px 36px rgba(31, 41, 35, 0.14), 0 8px 16px rgba(31, 41, 35, 0.06);

  /* Structural Border Radii */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;
  --radius-full: 9999px;

  /* Layout Boundaries */
  --container-max: 1200px;
  --header-height: 4.5rem;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 1.5rem);
  font-size: 100%;
  -webkit-text-size-adjust: 100%;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  background-color: var(--color-canvas);
  color: var(--color-text-primary);
  font-family: var(--font-sans);
  font-size: var(--step-0);
  line-height: 1.68;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

img, picture, svg, video {
  display: block;
  max-width: 100%;
  height: auto;
}

input, button, textarea, select {
  font: inherit;
}

ul, ol {
  list-style: none;
}

a {
  color: inherit;
  text-decoration: none;
}

/* --------------------------------------------------------------------------
   3. Accessibility & Focus Architecture (WCAG AA/AAA)
   -------------------------------------------------------------------------- */
:focus-visible {
  outline: 3px solid var(--color-focus-ring);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  z-index: 1000;
  padding: 0.85rem 1.5rem;
  background-color: var(--color-brand-secondary);
  color: var(--color-canvas);
  font-weight: 700;
  font-size: var(--step-0);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  box-shadow: var(--shadow-lg);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 0;
  outline: 3px solid var(--color-accent-detail);
}

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

/* --------------------------------------------------------------------------
   4. Global Typography & Core Elements
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  color: var(--color-brand-primary);
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.015em;
}

h1 { font-size: var(--step-4); }
h2 { font-size: var(--step-3); }
h3 { font-size: var(--step-2); }
h4 { font-size: var(--step-1); }

p {
  margin-bottom: 1.25rem;
}

p:last-child {
  margin-bottom: 0;
}

/* Utility Class for launch-hidden items */
.v1-hidden {
  display: none !important;
}

/* Base Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-m);
}

/* Section Badge Header (Consistent Chapter Style) */
.section-badge-header {
  text-align: center;
  max-width: 780px;
  margin-inline: auto;
  margin-bottom: var(--space-xl);
}

.badge-tag {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-brand-primary);
  background-color: var(--color-accent-subtle);
  border: 1px solid rgba(212, 163, 89, 0.4);
  padding: 0.3rem 0.9rem;
  border-radius: var(--radius-full);
  margin-bottom: 0.85rem;
}

.badge-tag-light {
  color: var(--color-canvas);
  background-color: rgba(249, 246, 240, 0.15);
  border-color: rgba(249, 246, 240, 0.3);
}

.sub-panel-title,
.section-title {
  font-size: var(--step-3);
  margin-bottom: 0.75rem;
}

.text-light {
  color: var(--color-canvas) !important;
}

.section-lead {
  font-size: var(--step-1);
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* Standard Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 44px; /* WCAG 44px touch target */
  min-width: 44px;
  padding: 0.65rem 1.45rem;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
}

.btn-cta {
  background-color: var(--color-brand-secondary);
  color: var(--color-canvas);
  border-color: var(--color-brand-secondary);
  box-shadow: 0 4px 10px rgba(200, 100, 70, 0.28);
}

.btn-cta:hover {
  background-color: var(--color-brand-secondary-hover);
  border-color: var(--color-brand-secondary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 14px rgba(200, 100, 70, 0.38);
}

.btn-cta:active {
  transform: translateY(0);
}

/* --------------------------------------------------------------------------
   5. Sticky Header & Glassmorphic Navigation (Section 3)
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(249, 246, 240, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(212, 163, 89, 0.3);
  box-shadow: 0 2px 10px rgba(31, 41, 35, 0.04);
  display: flex;
  align-items: center;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-m);
}

/* Brand Logo (Text + Crown) */
.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--color-brand-primary);
  min-height: 44px;
}

.brand-logo-icon {
  flex-shrink: 0;
  color: var(--color-accent-detail);
}

.brand-logo-text {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.05rem, 0.95rem + 0.3vw, 1.25rem);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--color-brand-primary);
  white-space: nowrap;
}

/* Nav Menu Items */
.nav-links-wrapper {
  display: flex;
  align-items: center;
  gap: var(--space-l);
}

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

.nav-link {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-brand-primary);
  padding: 0.5rem 0.6rem;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0.4rem;
  left: 0.6rem;
  right: 0.6rem;
  height: 2px;
  background-color: var(--color-brand-secondary);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--transition-normal);
}

.nav-link:hover {
  color: var(--color-brand-secondary);
}

.nav-link:hover::after {
  transform: scaleX(1);
}

/* Dropdown Menu Architecture */
.nav-item-dropdown {
  position: relative;
}

.nav-dropdown-toggle {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-brand-primary);
  background: none;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 0.6rem;
  min-height: 44px;
}

.nav-dropdown-toggle:hover {
  color: var(--color-brand-secondary);
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 0.25rem);
  left: 0;
  min-width: 230px;
  background-color: var(--color-canvas);
  border: 1px solid var(--color-accent-detail);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 0.5rem;
  display: none;
  flex-direction: column;
  gap: 0.25rem;
  z-index: 101;
}

.dropdown-menu.is-open {
  display: flex;
}

.dropdown-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0.85rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-primary);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.dropdown-link:hover {
  background-color: var(--color-canvas-alt);
  color: var(--color-brand-primary);
}

/* --------------------------------------------------------------------------
   6. Panel 1: Listen (Hero) Architecture (Section 4.1)
   -------------------------------------------------------------------------- */
.section-hero {
  position: relative;
  background-color: var(--color-canvas);
  padding-block: var(--space-2xl) var(--space-xl);
  overflow: hidden;
}

/* Scattered Charlotte SVG Vector Pattern Background */
.hero-pattern-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  color: var(--color-brand-primary);
}

.hero-content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.hero-header-stack {
  max-width: 900px;
  margin-bottom: var(--space-xl);
}

.hero-eyebrow {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: var(--step--1);
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-brand-secondary);
  margin-bottom: 0.75rem;
}

.hero-title {
  font-size: var(--step-4);
  line-height: 1.18;
  color: var(--color-brand-primary);
  margin-bottom: 1.25rem;
  text-wrap: balance;
}

.hero-subtitle {
  font-size: var(--step-1);
  color: var(--color-text-muted);
  max-width: 720px;
  margin-inline: auto;
  line-height: 1.55;
  text-wrap: balance;
}

/* Custom Responsive SoundCloud Player Container */
.soundcloud-player-container {
  width: 100%;
  max-width: 960px;
  background-color: var(--color-white);
  border: 1px solid var(--color-accent-detail);
  border-radius: var(--radius-lg);
  padding: 1rem;
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.soundcloud-player-container:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-2px);
}

.soundcloud-player-container iframe {
  width: 100%;
  border-radius: var(--radius-md);
  border: none;
  background-color: #2D5A43;
}

.player-caption {
  margin-top: 0.75rem;
  font-size: var(--step--1);
  font-weight: 600;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
}

/* Platform Subscription Row */
.platform-links-wrapper {
  margin-top: var(--space-l);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.platform-heading {
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.platform-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
}

.platform-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  min-height: 44px;
  background-color: var(--color-white);
  color: var(--color-text-primary);
  border: 1px solid rgba(45, 90, 67, 0.2);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.platform-badge:hover {
  border-color: var(--color-brand-primary);
  color: var(--color-brand-primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* --------------------------------------------------------------------------
   7. Undulating Wave Dividers (Section 2.3)
   -------------------------------------------------------------------------- */
.wave-divider-wrapper {
  width: 100%;
  line-height: 0;
  overflow: hidden;
  margin-block: 0;
}

.undulating-divider {
  display: block;
  width: 100%;
  height: clamp(40px, 4vw, 80px);
}

/* --------------------------------------------------------------------------
   8. Panel 2: About Architecture (Section 4.2)
   -------------------------------------------------------------------------- */
.section-about {
  position: relative;
  background-color: var(--color-canvas);
}

/* Full Narrative Statement Card */
.about-opening-container {
  padding-block: var(--space-xl) var(--space-l);
}

.narrative-card {
  background-color: var(--color-white);
  border-left: 5px solid var(--color-brand-secondary);
  border-top: 1px solid var(--color-card-border);
  border-right: 1px solid var(--color-card-border);
  border-bottom: 1px solid var(--color-card-border);
  border-radius: var(--radius-md);
  padding: var(--space-l) var(--space-xl);
  box-shadow: var(--shadow-md);
  position: relative;
}

.narrative-card::before {
  content: "“";
  position: absolute;
  top: -0.85rem;
  left: 1.5rem;
  font-family: var(--font-serif);
  font-size: 4rem;
  color: var(--color-accent-detail);
  line-height: 1;
  opacity: 0.4;
  pointer-events: none;
}

.narrative-lead {
  font-family: var(--font-serif);
  font-size: clamp(1.15rem, 1.05rem + 0.5vw, 1.45rem);
  line-height: 1.65;
  color: var(--color-text-primary);
  font-weight: 500;
  position: relative;
  z-index: 1;
}

/* Sub-Panel 2A: The Problem */
.sub-panel-problem {
  background-color: var(--color-canvas);
  padding-block: var(--space-l) var(--space-xl);
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-l);
}

.callout-card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-l);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-card-border);
  display: flex;
  flex-direction: column;
}

.callout-card-myths {
  border-top: 4px solid var(--color-brand-secondary);
}

.callout-card-teaching {
  border-top: 4px solid var(--color-accent-detail);
}

.card-header-icon {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.card-icon-symbol {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 1.1rem;
}

.callout-card-myths .card-icon-symbol {
  background-color: rgba(200, 100, 70, 0.12);
  color: var(--color-brand-secondary);
}

.callout-card-teaching .card-icon-symbol {
  background-color: rgba(212, 163, 89, 0.18);
  color: #9E7432;
}

.callout-card-title {
  font-family: var(--font-serif);
  font-size: var(--step-1);
  color: var(--color-text-primary);
}

.myth-list,
.teaching-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.myth-item {
  display: flex;
  align-items: baseline;
  gap: 0.65rem;
  font-size: var(--step-0);
  line-height: 1.5;
}

.myth-label {
  font-weight: 700;
  color: var(--color-brand-secondary);
  font-size: 0.95rem;
  white-space: nowrap;
}

.myth-text {
  color: var(--color-text-primary);
}

.teaching-item {
  display: flex;
  align-items: baseline;
  gap: 0.65rem;
  font-size: var(--step-0);
  line-height: 1.5;
}

.teaching-bullet {
  color: var(--color-accent-detail);
  font-size: 1.3rem;
  line-height: 1;
}

.teaching-text {
  color: var(--color-text-primary);
}

/* Sub-Panel 2B: The Solution */
.sub-panel-solution {
  background-color: var(--color-brand-primary);
  color: var(--color-canvas);
  padding-block: var(--space-xl) var(--space-2xl);
}

.solution-header .sub-panel-title {
  color: var(--color-canvas);
}

.solution-subtitle {
  font-size: var(--step-1);
  color: rgba(249, 246, 240, 0.9);
  max-width: 700px;
  margin-inline: auto;
  line-height: 1.55;
}

.solution-features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-l);
  margin-top: var(--space-m);
}

.solution-feature-card {
  background: rgba(249, 246, 240, 0.08);
  border: 1px solid rgba(212, 163, 89, 0.35);
  border-radius: var(--radius-lg);
  padding: var(--space-l);
  backdrop-filter: blur(4px);
  transition: transform var(--transition-normal), background var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.solution-feature-card:hover {
  background: rgba(249, 246, 240, 0.14);
  transform: translateY(-4px);
}

.solution-icon-wrap {
  width: 56px;
  height: 56px;
  background-color: rgba(212, 163, 89, 0.2);
  border: 1px solid var(--color-accent-detail);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent-detail);
  margin-bottom: 1.25rem;
}

.solution-card-title {
  font-family: var(--font-serif);
  font-size: var(--step-1);
  color: var(--color-canvas);
  margin-bottom: 0.75rem;
}

.solution-card-text {
  font-size: 0.98rem;
  line-height: 1.6;
  color: rgba(249, 246, 240, 0.92);
}

/* Sub-Panel 2C: Instructional Materials Gallery */
.sub-panel-instructional {
  background-color: var(--color-canvas-alt);
  padding-block: var(--space-xl) var(--space-2xl);
}

.instructional-intro {
  font-size: var(--step-0);
  color: var(--color-text-muted);
  max-width: 780px;
  margin-inline: auto;
  line-height: 1.65;
}

.doc-gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-l);
  margin-top: var(--space-l);
}

@media (min-width: 860px) {
  .doc-gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.doc-card {
  container-type: inline-size;
  container-name: doc;
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(45, 90, 67, 0.14);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

@container doc (min-width: 380px) {
  .doc-caption {
    padding: var(--space-m) var(--space-l);
  }
}

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

.doc-thumbnail-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  background: #E8E3D8;
  border-bottom: 2px solid var(--color-accent-detail);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Fallback styling for images if not loaded yet */
.doc-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
  background: linear-gradient(135deg, #e4ded3 0%, #d8d0c2 100%);
}

.doc-thumbnail-frame:hover .doc-img {
  transform: scale(1.04);
}

.doc-overlay {
  position: absolute;
  inset: 0;
  background: rgba(31, 41, 35, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.doc-thumbnail-frame:hover .doc-overlay,
.doc-thumbnail-frame:focus-within .doc-overlay {
  opacity: 1;
}

.btn-examine {
  background-color: var(--color-brand-secondary);
  color: var(--color-canvas);
  border-color: var(--color-brand-secondary);
  font-size: 0.88rem;
  padding: 0.55rem 1.15rem;
}

.btn-examine:hover {
  background-color: var(--color-brand-secondary-hover);
}

.doc-caption {
  padding: var(--space-m);
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.doc-era {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-brand-secondary);
  margin-bottom: 0.35rem;
}

.doc-title {
  font-family: var(--font-serif);
  font-size: var(--step-1);
  color: var(--color-brand-primary);
  margin-bottom: 0.5rem;
}

.doc-desc {
  font-size: 0.92rem;
  color: var(--color-text-muted);
  line-height: 1.55;
  margin-bottom: 1rem;
  flex-grow: 1;
}

.doc-inline-btn {
  background: none;
  border: none;
  padding: 0;
  color: var(--color-brand-primary);
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
  align-self: flex-start;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  transition: color var(--transition-fast);
}

.doc-inline-btn:hover {
  color: var(--color-brand-secondary);
}

/* --------------------------------------------------------------------------
   9. Native HTML <dialog> Lightbox Inspection Architecture
   -------------------------------------------------------------------------- */
.doc-modal {
  border: 1px solid var(--color-accent-detail);
  border-radius: var(--radius-lg);
  padding: 0;
  background-color: var(--color-canvas);
  color: var(--color-text-primary);
  box-shadow: var(--shadow-xl);
  max-width: min(880px, 92vw);
  width: 100%;
  margin: auto;
}

.doc-modal::backdrop {
  background: rgba(31, 41, 35, 0.75);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.modal-dialog-content {
  display: flex;
  flex-direction: column;
  max-height: 88vh;
  overflow-y: auto;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--color-accent-subtle);
  background-color: var(--color-white);
  position: sticky;
  top: 0;
  z-index: 10;
}

.modal-title {
  font-family: var(--font-serif);
  font-size: var(--step-1);
  color: var(--color-brand-primary);
}

.modal-close-btn {
  background: none;
  border: none;
  font-size: 1.8rem;
  line-height: 1;
  color: var(--color-text-muted);
  cursor: pointer;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast);
}

.modal-close-btn:hover {
  color: var(--color-brand-secondary);
}

.modal-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.modal-image-preview {
  width: 100%;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-accent-detail);
  background: #E8E3D8;
  min-height: 240px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-image-preview img {
  width: 100%;
  max-height: 55vh;
  object-fit: contain;
}

.modal-text-details h4 {
  font-size: var(--step-0);
  color: var(--color-brand-primary);
  margin-bottom: 0.5rem;
}

.modal-text-details p {
  font-size: 0.94rem;
  line-height: 1.6;
  color: var(--color-text-primary);
  margin-bottom: 0.75rem;
}

.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--color-accent-subtle);
  background-color: var(--color-white);
  display: flex;
  justify-content: flex-end;
}

.btn-modal-close {
  background-color: var(--color-brand-primary);
  color: var(--color-canvas);
  border: none;
  padding: 0.6rem 1.4rem;
  font-weight: 700;
  border-radius: var(--radius-md);
  cursor: pointer;
  min-height: 44px;
}

.btn-modal-close:hover {
  background-color: var(--color-brand-primary-dark);
}

/* --------------------------------------------------------------------------
   10. Panel 3: The Team Architecture (Section 4.3)
   -------------------------------------------------------------------------- */
.section-team {
  background-color: var(--color-canvas);
  padding-block: var(--space-xl) var(--space-2xl);
}

/* 1. Featured Founder Spotlight Card */
.founder-card {
  container-type: inline-size;
  container-name: founder;
  background-color: var(--color-white);
  border: 2px solid var(--color-accent-detail);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-l);
  margin-bottom: var(--space-2xl);
}

.founder-card-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-l);
  align-items: center;
}

@container founder (min-width: 640px) {
  .founder-card-inner {
    grid-template-columns: 260px 1fr;
    gap: var(--space-xl);
  }
}

@media (min-width: 768px) {
  .founder-card-inner {
    grid-template-columns: 280px 1fr;
    gap: var(--space-xl);
  }
}

.founder-media {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.85rem;
}

.founder-photo-frame {
  width: 220px;
  height: 220px;
  border-radius: var(--radius-full);
  border: 4px solid var(--color-accent-detail);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  background: linear-gradient(135deg, #ded8cc 0%, #c9c0b0 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.founder-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.founder-role-badge {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-canvas);
  background-color: var(--color-brand-primary);
  padding: 0.35rem 1rem;
  border-radius: var(--radius-full);
}

.founder-name {
  font-family: var(--font-serif);
  font-size: var(--step-3);
  color: var(--color-brand-primary);
  margin-bottom: 0.4rem;
}

.founder-summary {
  font-size: var(--step-1);
  font-weight: 600;
  color: var(--color-brand-secondary);
  line-height: 1.45;
  margin-bottom: 1.25rem;
}

.founder-bio p {
  color: var(--color-text-primary);
  line-height: 1.65;
  margin-bottom: 0.85rem;
}

/* 2. Team Member Accordion Grid (<details> / <summary>) */
.team-accordion-section {
  margin-bottom: var(--space-2xl);
}

.team-subheading {
  font-family: var(--font-serif);
  font-size: var(--step-2);
  color: var(--color-brand-primary);
  margin-bottom: var(--space-l);
  text-align: center;
}

.team-accordion-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-m);
}

.team-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  overflow: hidden;
}

.team-card:hover {
  border-color: var(--color-accent-detail);
  box-shadow: var(--shadow-md);
}

.team-card[open] {
  border-color: var(--color-accent-detail);
  box-shadow: var(--shadow-lg);
}

.team-card-header {
  list-style: none; /* Hide native browser marker */
  cursor: pointer;
  padding: 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  min-height: 44px;
  user-select: none;
}

.team-card-header::-webkit-details-marker {
  display: none;
}

.team-photo {
  width: 72px;
  height: 72px;
  border-radius: var(--radius-full);
  border: 2px solid var(--color-accent-detail);
  object-fit: cover;
  flex-shrink: 0;
  background: linear-gradient(135deg, #ded8cc 0%, #c9c0b0 100%);
}

.team-meta {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.team-name {
  font-family: var(--font-serif);
  font-size: var(--step-0);
  color: var(--color-brand-primary);
  margin-bottom: 0.15rem;
}

.team-title {
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-brand-secondary);
  margin-bottom: 0.4rem;
}

.bio-toggle-btn {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--color-brand-primary);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  transition: color var(--transition-fast);
}

.team-card:hover .bio-toggle-btn {
  color: var(--color-brand-secondary);
}

.btn-text-open {
  display: none;
}

.team-card[open] .btn-text-closed {
  display: none;
}

.team-card[open] .btn-text-open {
  display: inline;
}

.team-bio-content {
  padding: 0 1.25rem 1.25rem 1.25rem;
  border-top: 1px solid rgba(45, 90, 67, 0.08);
  margin-top: 0.5rem;
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--color-text-primary);
  animation: fadeIn 250ms ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* 3. Candid Team Photo Grid (Strictly 2 horizontal image slots) */
.candid-section {
  text-align: center;
}

.candid-title {
  font-family: var(--font-serif);
  font-size: var(--step-2);
  color: var(--color-brand-primary);
  margin-bottom: 0.5rem;
}

.candid-intro {
  font-size: var(--step-0);
  color: var(--color-text-muted);
  margin-bottom: var(--space-l);
}

.candid-photo-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .candid-photo-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.candid-frame {
  background-color: var(--color-white);
  border: 1px solid var(--color-accent-detail);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
}

.candid-img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  background: linear-gradient(135deg, #ded8cc 0%, #c9c0b0 100%);
}

.candid-caption {
  padding: 0.85rem 1rem;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--color-text-muted);
  background-color: var(--color-white);
  border-top: 1px solid rgba(0, 0, 0, 0.06);
}

/* --------------------------------------------------------------------------
   11. Fat Footer Architecture (Section 5)
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--color-brand-primary);
  color: var(--color-canvas);
  padding-top: var(--space-2xl);
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  padding-bottom: var(--space-2xl);
}

@media (min-width: 600px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 960px) {
  .footer-grid {
    grid-template-columns: 1.25fr 0.9fr 0.95fr 1.1fr;
  }
}

.footer-col-title {
  font-family: var(--font-serif);
  font-size: var(--step-1);
  color: var(--color-canvas);
  margin-bottom: 1rem;
  border-bottom: 1px solid rgba(212, 163, 89, 0.4);
  padding-bottom: 0.5rem;
}

.footer-link-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-link {
  color: rgba(249, 246, 240, 0.85);
  font-size: 0.95rem;
  display: inline-block;
  min-height: 36px;
  line-height: 36px;
  transition: color var(--transition-fast), transform var(--transition-fast);
}

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

.footer-contact-desc {
  font-size: 0.92rem;
  color: rgba(249, 246, 240, 0.9);
  margin-bottom: 0.75rem;
}

.footer-email-link {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--color-accent-detail);
  display: inline-block;
  margin-bottom: 0.75rem;
  min-height: 44px;
  line-height: 44px;
  word-break: break-all;
  transition: color var(--transition-fast);
}

.footer-email-link:hover {
  color: var(--color-canvas);
  text-decoration: underline;
}

.footer-response-note {
  font-size: 0.82rem;
  color: rgba(249, 246, 240, 0.72);
  line-height: 1.45;
}

/* Recent Episodes RSS Container in Footer */
.footer-episodes-loading {
  font-size: 0.88rem;
  color: rgba(249, 246, 240, 0.75);
}

.footer-episodes-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-episode-item a {
  color: rgba(249, 246, 240, 0.9);
  font-size: 0.92rem;
  font-weight: 600;
  line-height: 1.4;
  transition: color var(--transition-fast);
}

.footer-episode-item a:hover {
  color: var(--color-accent-detail);
}

.ep-date {
  font-size: 0.78rem;
  color: rgba(249, 246, 240, 0.65);
  margin-left: 0.35rem;
}

/* Footer Bottom Bar */
.footer-bottom-bar {
  border-top: 1px solid rgba(249, 246, 240, 0.12);
  padding-block: 1.25rem;
  background-color: var(--color-brand-primary-dark);
}

.footer-bottom-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  text-align: center;
  font-size: 0.85rem;
  color: rgba(249, 246, 240, 0.8);
}

@media (min-width: 768px) {
  .footer-bottom-container {
    flex-direction: row;
    text-align: left;
  }
}

.footer-attribution a {
  color: var(--color-accent-detail);
  font-weight: 700;
  transition: color var(--transition-fast);
}

.footer-attribution a:hover {
  color: var(--color-canvas);
  text-decoration: underline;
}

/* --------------------------------------------------------------------------
   12. Responsive Breakpoints & Container Adjustments
   -------------------------------------------------------------------------- */
@media (max-width: 680px) {
  .site-header {
    height: auto;
    padding-block: 0.75rem;
  }

  .nav-container {
    flex-direction: column;
    gap: 0.75rem;
  }

  .nav-links-wrapper {
    width: 100%;
    justify-content: space-between;
    gap: 0.5rem;
  }

  .brand-logo-text {
    font-size: 1.05rem;
  }

  .narrative-card {
    padding: var(--space-m);
  }

  .founder-photo-frame {
    width: 170px;
    height: 170px;
  }
}