/* ==========================================================================
   Darian Vale Koh — Personal Institutional Website
   Theme: Institutional Gravitas, Calm, Restrained, Information-Dense
   Palette: Near-Black (#080808), Dark Slate (#11151E), Warm Bronze/Gold (#C8AA7B)
   ========================================================================== */

:root {
  /* Color Tokens */
  --bg-base: #080808;
  --bg-surface: #11141c;
  --bg-elevated: #161b26;
  --bg-card: rgba(17, 21, 30, 0.75);
  --bg-glass: rgba(8, 8, 8, 0.94);
  
  --text-primary: #f5f6f8;
  --text-secondary: #9aa5b5;
  --text-muted: #616c7d;
  
  --accent-gold: #c8aa7b;
  --accent-gold-light: #dfcaa8;
  --accent-gold-dim: rgba(200, 170, 123, 0.12);
  --border-gold-subtle: rgba(200, 170, 123, 0.28);
  
  --border-subtle: #1c1f28;
  --border-hairline: rgba(255, 255, 255, 0.07);
  
  /* Typography */
  --font-serif: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  /* Layout Spacing */
  --max-width: 1180px;
  --header-height: 90px;
  --section-padding-y: 6.5rem;
  --radius-sm: 2px;
  --radius-md: 4px;
}

/* Reset & Foundation */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-base);
  color: var(--text-primary);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease, opacity 0.2s ease;
}

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

/* Container */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 2rem;
  padding-right: 2rem;
}

/* Common Section Layout */
section {
  padding: var(--section-padding-y) 0;
  position: relative;
}

/* Section Header / Labels */
.section-header {
  margin-bottom: 3.5rem;
  text-align: center;
}

.section-label {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 0.85rem;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(2.1rem, 3.6vw, 3rem);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.section-desc {
  font-size: 1.025rem;
  color: var(--text-secondary);
  max-width: 680px;
  margin: 1rem auto 0;
  line-height: 1.75;
}

/* Hairline Dividers */
.hairline-divider {
  width: 100%;
  max-width: var(--max-width);
  height: 1px;
  background-color: var(--border-subtle);
  margin: 0 auto;
}

.chinese-name {
  font-family: var(--font-serif), 'Songti SC', 'SimSun', serif;
  font-size: 0.85em;
  color: var(--accent-gold);
  margin-left: 6px;
  font-weight: 300;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: 1000;
  background: linear-gradient(180deg, rgba(8, 8, 8, 0.8) 0%, rgba(8, 8, 8, 0.3) 65%, transparent 100%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.site-header.scrolled {
  background: rgba(8, 8, 8, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-gold-subtle);
  height: 76px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.wordmark {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: #f5f6f8;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
  transition: color 0.2s ease;
}

.wordmark:hover {
  color: var(--accent-gold);
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #9aa5b5;
  position: relative;
  padding: 0.4rem 0;
  transition: color 0.2s ease;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--accent-gold);
  transition: width 0.25s ease;
}

.nav-link:hover,
.nav-link.active {
  color: #f4f4f6;
}

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

.nav-link-cta {
  padding: 0.45rem 1.25rem;
  border: 1px solid var(--border-gold-subtle);
  border-radius: var(--radius-sm);
  color: var(--accent-gold) !important;
  background: rgba(200, 170, 123, 0.08);
  transition: all 0.25s ease;
}

.nav-link-cta::after {
  display: none !important;
}

.nav-link-cta:hover {
  background: var(--accent-gold);
  color: #080808 !important;
  border-color: var(--accent-gold);
  box-shadow: 0 4px 18px rgba(200, 170, 123, 0.35);
  transform: translateY(-1px);
}

/* Mobile Hamburger Toggle */
.hamburger-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1100;
}

.hamburger-toggle span {
  display: block;
  width: 24px;
  height: 1.5px;
  background-color: var(--text-primary);
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.hamburger-toggle.active span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.hamburger-toggle.active span:nth-child(2) {
  opacity: 0;
}
.hamburger-toggle.active span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* Mobile Menu Overlay */
.mobile-nav-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--bg-base);
  z-index: 1050;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.mobile-nav-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav-menu {
  list-style: none;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.mobile-nav-link {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-primary);
  transition: color 0.2s ease;
}

.mobile-nav-link:hover {
  color: var(--accent-gold);
}

/* ==========================================================================
   Module 1: Hero Section (Minimalist, Restrained, Video BG — NO BUTTONS)
   ========================================================================== */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: var(--header-height);
  padding-bottom: 5rem;
  background-color: #060709;
}

.hero-video-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: 1;
}

.hero-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  display: block;
}

/* Radiant Ambient Vignette & Text Readability Overlay */
.hero-overlay {
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(circle at 25% 45%, rgba(8, 8, 8, 0.88) 0%, rgba(8, 8, 8, 0.65) 48%, rgba(8, 8, 8, 0.25) 78%, transparent 100%),
    linear-gradient(180deg, rgba(8, 8, 8, 0.75) 0%, transparent 32%, rgba(8, 8, 8, 0.88) 100%);
  pointer-events: none;
}

.hero-container {
  position: relative;
  z-index: 2;
  width: 100%;
}

.hero-content-restrained {
  max-width: 820px;
  display: flex;
  flex-direction: column;
}

.hero-org-affiliation {
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 1.25rem;
}

.hero-name {
  font-family: var(--font-serif);
  font-size: clamp(3.8rem, 6.5vw, 5.6rem);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.015em;
  color: #ffffff;
  text-shadow: 0 4px 25px rgba(0, 0, 0, 0.6);
  margin-bottom: 0.75rem;
}

.hero-chinese-name {
  font-family: var(--font-serif), 'Songti SC', 'SimSun', serif;
  font-size: 0.65em;
  color: var(--accent-gold);
  font-weight: 300;
  margin-left: 12px;
}

.hero-title-tag {
  font-family: var(--font-serif);
  font-size: clamp(1.3rem, 2.2vw, 1.7rem);
  color: #dfcaa8;
  margin-bottom: 2.25rem;
  letter-spacing: 0.02em;
}

.hero-philosophy-line {
  border-left: 2px solid var(--accent-gold);
  padding-left: 1.75rem;
  margin-top: 0.5rem;
}

.hero-statement {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 2.4vw, 1.9rem);
  font-style: italic;
  color: #f5f6f8;
  line-height: 1.4;
  text-shadow: 0 2px 15px rgba(0, 0, 0, 0.5);
}

/* ==========================================================================
   Module 2: Professional Snapshot (Information-Dense, Factual)
   ========================================================================== */
.snapshot-section {
  background: rgba(14, 18, 25, 0.85);
  border-bottom: 1px solid var(--border-subtle);
  padding: 5.5rem 0;
}

.snapshot-header {
  margin-bottom: 2.5rem;
}

.snapshot-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.snapshot-item {
  background: rgba(18, 22, 30, 0.65);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-top: 2px solid var(--border-gold-subtle);
  border-radius: var(--radius-sm);
  padding: 1.65rem 1.85rem;
  transition: all 0.25s ease;
}

.snapshot-item:hover {
  border-top-color: var(--accent-gold);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.35);
}

.snapshot-label {
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-gold);
  display: block;
  margin-bottom: 0.4rem;
  font-weight: 600;
}

.snapshot-value {
  font-size: 1.05rem;
  color: #f5f6f8;
  font-weight: 500;
  line-height: 1.45;
}

/* ==========================================================================
   Module 3: About Darian — Personal Background (Condensed, Features Darian2.jpg)
   ========================================================================== */
.about-section {
  position: relative;
  background: var(--bg-base);
}

.about-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 4.5rem;
  align-items: flex-start;
}

.about-portrait-col {
  position: sticky;
  top: 110px;
}

.portrait-container {
  width: 100%;
  max-width: 410px;
  border: 1px solid rgba(200, 170, 123, 0.3);
  background-color: var(--bg-surface);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.7);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.portrait-container img {
  width: 100%;
  height: auto;
  aspect-ratio: 853 / 1280;
  object-fit: cover;
}

.portrait-caption {
  background: rgba(18, 22, 30, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  padding: 1rem 1.25rem;
  margin-top: 1.25rem;
  max-width: 410px;
}

.caption-name {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  color: #f5f6f8;
  display: block;
}

.caption-sub {
  font-size: 0.75rem;
  color: var(--accent-gold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.narrative-blocks {
  display: flex;
  flex-direction: column;
  gap: 2.25rem;
  margin-top: 2rem;
}

.narrative-block {
  background: rgba(18, 22, 30, 0.65);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-left: 2px solid var(--accent-gold);
  border-radius: var(--radius-sm);
  padding: 2.25rem 2.25rem;
}

.narrative-heading {
  font-family: var(--font-serif);
  font-size: 1.45rem;
  color: #f5f6f8;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.narrative-block p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 0.85rem;
}

.narrative-subtext {
  font-size: 0.925rem;
  color: #9aa5b5;
  line-height: 1.7;
}

/* ==========================================================================
   Module 4: Career Focus (Problems He Focuses on Solving, Features Darian1.jpg)
   ========================================================================== */
.focus-editorial-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 4.5rem;
  align-items: flex-start;
  margin-top: 3rem;
}

.focus-portrait-side {
  position: sticky;
  top: 110px;
}

.focus-portrait-badge {
  background: rgba(14, 18, 25, 0.92);
  border: 1px solid var(--border-gold-subtle);
  border-radius: var(--radius-sm);
  padding: 1rem 1.25rem;
  margin-top: 1.25rem;
  max-width: 410px;
}

.badge-tag {
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-gold);
  display: block;
  margin-bottom: 3px;
  font-weight: 600;
}

.badge-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: #f5f6f8;
}

.focus-problems-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.problem-card {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 1.75rem;
  background: rgba(18, 22, 30, 0.7);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-left: 3px solid var(--accent-gold);
  padding: 2.25rem 2.25rem;
  border-radius: var(--radius-sm);
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.problem-card:hover {
  transform: translateX(4px);
  border-color: rgba(200, 170, 123, 0.45);
}

.problem-num {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  color: var(--accent-gold);
  line-height: 1;
  font-weight: 500;
}

.problem-title {
  font-family: var(--font-serif);
  font-size: 1.45rem;
  color: #f5f6f8;
  margin-bottom: 0.65rem;
  line-height: 1.3;
}

.problem-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.75;
}

/* ==========================================================================
   Modules 5 & 6: Investment Philosophy (With Architectural Visuals)
   ========================================================================== */
.philosophy-section {
  position: relative;
  background: 
    radial-gradient(circle at 85% 25%, rgba(200, 170, 123, 0.04) 0%, transparent 45%),
    radial-gradient(circle at 15% 75%, rgba(22, 28, 40, 0.5) 0%, transparent 55%),
    var(--bg-base);
}

.group-header {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 2rem;
}

.group-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent-gold);
  white-space: nowrap;
}

.group-line {
  height: 1px;
  flex-grow: 1;
  background: linear-gradient(90deg, rgba(200, 170, 123, 0.3) 0%, rgba(255, 255, 255, 0.05) 100%);
}

.principles-grid-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.principle-card {
  background: rgba(18, 22, 30, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-left: 3px solid var(--accent-gold);
  border-radius: var(--radius-sm);
  padding: 2.25rem 2.25rem;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.principle-card:hover {
  transform: translateY(-4px);
  border-color: rgba(200, 170, 123, 0.45);
}

.principle-num {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-gold);
  display: block;
  margin-bottom: 0.75rem;
}

.principle-statement {
  font-family: var(--font-serif);
  font-size: 1.55rem;
  font-weight: 400;
  line-height: 1.3;
  color: #f5f6f8;
  margin-bottom: 0.75rem;
}

.principle-note {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* 3 Operational Perspectives with Architectural Visuals */
.perspectives-visual-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.25rem;
}

.perspective-visual-card {
  background: rgba(18, 22, 30, 0.75);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.45);
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.perspective-visual-card:hover {
  transform: translateY(-6px);
  border-color: rgba(200, 170, 123, 0.4);
}

.card-image-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #0d1016;
}

.card-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.perspective-visual-card:hover .card-image-wrap img {
  transform: scale(1.05);
}

.card-image-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8, 8, 8, 0.2) 0%, rgba(8, 8, 8, 0.7) 100%);
  pointer-events: none;
}

.card-image-tag {
  position: absolute;
  bottom: 12px;
  left: 14px;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #f5f6f8;
  background: rgba(8, 8, 8, 0.82);
  backdrop-filter: blur(8px);
  padding: 4px 10px;
  border-radius: 100px;
  border: 1px solid rgba(200, 170, 123, 0.3);
}

.card-content-wrap {
  padding: 2rem 1.85rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  justify-content: space-between;
}

.perspective-card-title {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 400;
  color: #f5f6f8;
  margin-bottom: 0.85rem;
  line-height: 1.25;
}

.perspective-card-text {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.perspective-card-footer {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.card-footer-pill {
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-gold);
  padding: 3px 8px;
  background: rgba(200, 170, 123, 0.08);
  border-radius: 2px;
  border: 1px solid rgba(200, 170, 123, 0.18);
}

/* ==========================================================================
   Modules 7, 8, 9: Aurora Ridge Partners (Subdued Institutional Section)
   ========================================================================== */
.firm-section {
  position: relative;
  background: 
    linear-gradient(180deg, rgba(6, 8, 12, 0.55) 0%, rgba(6, 8, 12, 0.30) 40%, rgba(6, 8, 12, 0.60) 100%),
    url('firm-bg.jpg') center center / cover no-repeat;
  background-attachment: fixed;
  overflow: hidden;
  border-top: 1px solid rgba(212, 175, 55, 0.25);
  border-bottom: 1px solid rgba(212, 175, 55, 0.25);
  padding: 6.5rem 0;
}

.firm-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at 50% 30%, rgba(197, 160, 89, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.firm-section .container {
  position: relative;
  z-index: 2;
}

.firm-section .section-title {
  text-shadow: 0 4px 16px rgba(0, 0, 0, 0.85);
}

.firm-section .section-desc {
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.9);
  max-width: 680px;
}

.firm-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 3.5rem;
}

.firm-card {
  background: rgba(10, 14, 22, 0.68);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-top: 2px solid var(--accent-gold);
  border-radius: var(--radius-sm);
  padding: 2.5rem 2.15rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: 0 25px 55px rgba(0, 0, 0, 0.65);
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.firm-card:hover {
  transform: translateY(-3px);
  border-color: rgba(197, 160, 89, 0.35);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.65);
}

.firm-card-label {
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 0.75rem;
  font-weight: 600;
}

.firm-card-title {
  font-family: var(--font-serif);
  font-size: 1.55rem;
  color: #f5f6f8;
  margin-bottom: 1rem;
}

.firm-card-body {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 1.5rem;
}

.firm-meta-line {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-gold);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 1rem;
}

.firm-scope-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 1.5rem;
}

.firm-scope-list strong {
  color: #f5f6f8;
  display: block;
  margin-bottom: 2px;
}

/* ==========================================================================
   Module 10: Research & Thinking — Notes & Perspectives
   ========================================================================== */
.perspectives-section {
  position: relative;
  background: 
    radial-gradient(ellipse at 50% 12%, rgba(197, 160, 89, 0.08) 0%, transparent 65%),
    linear-gradient(180deg, #07090e 0%, #090c13 50%, #06080c 100%);
  padding: 7rem 0 6.5rem;
  overflow: hidden;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
}

.perspectives-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: radial-gradient(rgba(197, 160, 89, 0.04) 1px, transparent 1px);
  background-size: 36px 36px;
  pointer-events: none;
}

.perspectives-section .container {
  position: relative;
  z-index: 2;
}

.perspectives-editorial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.25rem;
  margin-top: 3.75rem;
}

.perspective-dossier-card {
  background: linear-gradient(160deg, rgba(16, 20, 28, 0.88) 0%, rgba(10, 13, 19, 0.96) 100%);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-top: 2px solid var(--accent-gold);
  border-radius: var(--radius-sm);
  padding: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.45);
  position: relative;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), 
              border-color 0.35s ease, 
              box-shadow 0.35s ease;
}

.perspective-dossier-card:hover {
  transform: translateY(-6px);
  border-color: rgba(197, 160, 89, 0.55);
  border-top-color: #e5c07b;
  box-shadow: 0 30px 65px rgba(0, 0, 0, 0.7), 0 0 35px rgba(197, 160, 89, 0.12);
}

.dossier-visual-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #05070a;
  border-bottom: 1px solid rgba(197, 160, 89, 0.25);
}

.dossier-visual-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), filter 0.6s ease;
  filter: brightness(0.95) contrast(1.05);
}

.perspective-dossier-card:hover .dossier-visual-img {
  transform: scale(1.05);
  filter: brightness(1.08) contrast(1.1);
}

.dossier-visual-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: rgba(8, 11, 16, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(197, 160, 89, 0.45);
  color: var(--accent-gold);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  font-weight: 700;
  padding: 0.25rem 0.6rem;
  border-radius: 2px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
}

.dossier-card-body {
  padding: 2.25rem 2rem 2.25rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  justify-content: space-between;
}

.dossier-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.dossier-index {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  color: var(--accent-gold);
  letter-spacing: 0.05em;
  font-weight: 500;
}

.dossier-badge {
  font-size: 0.65rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-gold);
  background: rgba(197, 160, 89, 0.08);
  border: 1px solid rgba(197, 160, 89, 0.2);
  padding: 0.3rem 0.75rem;
  border-radius: 2px;
  font-weight: 600;
}

.dossier-accent-line {
  height: 1px;
  width: 100%;
  background: linear-gradient(90deg, rgba(197, 160, 89, 0.4) 0%, rgba(255, 255, 255, 0.04) 100%);
  margin: 1.35rem 0 1.5rem;
}

.dossier-title {
  font-family: var(--font-serif);
  font-size: 1.45rem;
  line-height: 1.35;
  color: #f5f6f8;
  margin-bottom: 1.1rem;
  min-height: 3.9rem;
  transition: color 0.25s ease;
}

.perspective-dossier-card:hover .dossier-title {
  color: #ffffff;
}

.dossier-abstract {
  font-size: 0.925rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 1.85rem;
  flex-grow: 1;
}

.dossier-topics {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.dossier-tag {
  font-size: 0.7rem;
  color: #9aa8bc;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(255, 255, 255, 0.07);
  padding: 0.35rem 0.7rem;
  border-radius: 2px;
  letter-spacing: 0.02em;
  transition: border-color 0.25s ease, color 0.25s ease;
}

.perspective-dossier-card:hover .dossier-tag {
  border-color: rgba(197, 160, 89, 0.25);
  color: #cbd5e1;
}

.dossier-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  padding-top: 1.15rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.dossier-meta {
  font-size: 0.72rem;
  color: var(--accent-gold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 500;
}

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

/* ==========================================================================
   Module 11: Professional Engagement — Restrained Contact Section
   ========================================================================== */
.engagement-section {
  padding: 7rem 0 5.5rem;
  text-align: center;
}

.engagement-inner {
  max-width: 640px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.engagement-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 2rem;
}

.engagement-statement {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 3rem;
  max-width: 540px;
}

.email-box-link {
  display: block;
  width: 100%;
  max-width: 520px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 1.35rem 1.5rem;
  text-align: center;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.email-box-link:hover {
  background-color: var(--bg-elevated);
  border-color: var(--accent-gold);
}

.email-text {
  font-family: var(--font-serif);
  font-size: clamp(0.95rem, 3.8vw, 1.25rem);
  font-weight: 400;
  color: var(--text-primary);
  letter-spacing: 0.02em;
  word-break: break-all;
  overflow-wrap: anywhere;
}

.engagement-hubs-line {
  margin-top: 2rem;
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-gold);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  padding: 3.5rem 0 4rem;
  text-align: center;
}

.footer-inner {
  max-width: 640px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
}

.footer-affiliation {
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.footer-copyright {
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

/* ==========================================================================
   Responsive Adaptations
   ========================================================================== */
@media (max-width: 1024px) {
  .snapshot-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-grid,
  .focus-editorial-layout {
    grid-template-columns: 1fr;
    gap: 3.5rem;
  }

  .about-portrait-col,
  .focus-portrait-side {
    position: static;
    max-width: 420px;
    margin: 0 auto;
  }

  .principles-grid-cards,
  .perspectives-visual-grid,
  .firm-grid,
  .perspectives-editorial-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 74px;
    --section-padding-y: 4.5rem;
  }

  .firm-section {
    background-attachment: scroll;
    padding: 4.5rem 0;
  }

  .site-header {
    height: var(--header-height);
  }

  .nav-desktop {
    display: none;
  }

  .hamburger-toggle {
    display: flex;
  }

  .mobile-nav-overlay {
    display: flex;
  }

  .hero-name {
    font-size: 2.85rem;
  }

  .hero-title-tag {
    font-size: 1.25rem;
  }

  .snapshot-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .narrative-block {
    padding: 1.75rem 1.5rem;
  }

  .problem-card {
    grid-template-columns: 1fr;
    gap: 0.75rem;
    padding: 1.75rem 1.5rem;
  }

  .principle-card {
    padding: 1.6rem 1.4rem;
  }

  .card-content-wrap {
    padding: 1.5rem 1.35rem;
  }

  .perspective-dossier-card {
    padding: 0;
  }

  .dossier-card-body {
    padding: 1.75rem 1.4rem;
  }

  .email-box-link {
    padding: 1.15rem 1rem;
  }

  .email-text {
    font-size: 0.98rem;
  }
}