/* ===== Theme Tokens (Dark Default) ===== */
  :root {
    --bg-primary: #0a0a0c;
    --bg-secondary: #111114;
    --bg-tertiary: #18181c;
    --text-primary: #e8e6e1;
    --text-secondary: #9a9890;
    --text-tertiary: #5c5b56;
    --accent-warm: #c8a882;
    --accent-warm-dim: #8a7560;
    --accent-cool: #7ba3c4;
    --accent-cool-dim: #4d7a9e;
    --selection-text: #0a0a0c;

    --logo-color: #ffffff;
    --hero-subtitle-color: #b5b2aa;

    --nav-scrolled-bg: rgba(10, 10, 12, 0.85);
    --nav-scrolled-border: rgba(200, 168, 130, 0.08);
    --mobile-menu-bg: rgba(10, 10, 12, 0.97);

    --theme-toggle-text: #b9b6ae;
    --theme-toggle-border: rgba(200, 168, 130, 0.22);
    --theme-toggle-bg: rgba(255, 255, 255, 0.015);
    --theme-toggle-hover-border: rgba(200, 168, 130, 0.45);
    --theme-toggle-hover-bg: rgba(255, 255, 255, 0.04);

    --btn-border: rgba(200, 168, 130, 0.25);
    --btn-hover-text: #0a0a0c;
    --btn-secondary-border: rgba(123, 163, 196, 0.45);
    --btn-secondary-text: #c8c5bd;
    --btn-secondary-bg: rgba(123, 163, 196, 0.06);
    --btn-secondary-hover-border: rgba(123, 163, 196, 0.6);
    --btn-secondary-fill: linear-gradient(to right, rgba(123, 163, 196, 0.65), rgba(200, 168, 130, 0.65));

    --hero-flutes-bg: repeating-linear-gradient(
      to right,
      rgba(0, 0, 0, 0.25) 0px,
      rgba(255, 255, 255, 0.03) 2px,
      rgba(255, 255, 255, 0.08) 4px,
      rgba(255, 255, 255, 0.03) 6px,
      rgba(0, 0, 0, 0.25) 8px
    );
    --hero-overlay-bg: radial-gradient(ellipse at 50% 50%, transparent 0%, rgba(10, 10, 12, 0.3) 58%, var(--bg-primary) 88%);
    --hero-grain-opacity: 0.03;

    --framework-diagram-border: rgba(200, 168, 130, 0.12);
    --framework-diagram-bg: radial-gradient(120% 90% at 50% 0%, rgba(123, 163, 196, 0.08) 0%, rgba(123, 163, 196, 0) 60%), linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0));
    --framework-gridline: rgba(255, 255, 255, 0.02);
    --framework-connector: rgba(200, 168, 130, 0.4);

    --system-pillar-border: rgba(123, 163, 196, 0.22);
    --system-pillar-bg: linear-gradient(180deg, rgba(123, 163, 196, 0.14), rgba(123, 163, 196, 0.03)), linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0));
    --system-pillar-topline: rgba(123, 163, 196, 0.9);
    --system-pillar-linkline: rgba(200, 168, 130, 0.55);
    --system-desc-color: #a8a59d;

    --system-base-border: rgba(200, 168, 130, 0.25);
    --system-base-bg: linear-gradient(90deg, rgba(200, 168, 130, 0.16), rgba(123, 163, 196, 0.14)), linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0));
    --system-base-topline: rgba(200, 168, 130, 0.7);

    --framework-hover-border: rgba(200, 168, 130, 0.18);
    --framework-hover-bg: linear-gradient(180deg, rgba(123, 163, 196, 0.2), rgba(123, 163, 196, 0.05)), linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0));
    --framework-hover-shadow: inset 0 0 0 1px rgba(200, 168, 130, 0.08);
    --framework-base-hover-border: rgba(200, 168, 130, 0.33);
    --framework-base-hover-bg: linear-gradient(90deg, rgba(200, 168, 130, 0.2), rgba(123, 163, 196, 0.17)), linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0));

    --insights-radial-bg: radial-gradient(ellipse at 50% 100%, rgba(200, 168, 130, 0.03) 0%, transparent 58%);
    --placeholder-border: rgba(200, 168, 130, 0.1);
    --placeholder-bg: rgba(255, 255, 255, 0.01);
    --placeholder-header-border: rgba(200, 168, 130, 0.08);
    --insight-card-border: rgba(200, 168, 130, 0.06);
    --insight-card-bg: rgba(255, 255, 255, 0.008);
    --insight-card-hover-border: rgba(200, 168, 130, 0.18);
    --insight-card-hover-bg: rgba(255, 255, 255, 0.02);
    --insight-media-border: rgba(200, 168, 130, 0.14);
    --insight-media-bg: radial-gradient(120% 140% at 20% 18%, rgba(123, 163, 196, 0.4) 0%, rgba(123, 163, 196, 0) 62%), radial-gradient(130% 150% at 86% 84%, rgba(200, 168, 130, 0.34) 0%, rgba(200, 168, 130, 0) 58%), linear-gradient(135deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.01));
    --insight-media-gridline: rgba(255, 255, 255, 0.05);
    --insight-media-topline: rgba(200, 168, 130, 0.85);
    --insight-thumb-color: rgba(232, 230, 225, 0.72);

    --field-border: rgba(200, 168, 130, 0.16);
    --field-bg: rgba(255, 255, 255, 0.01);
    --field-focus-border: rgba(200, 168, 130, 0.45);
    --field-focus-bg: rgba(255, 255, 255, 0.02);
    --footer-border: rgba(200, 168, 130, 0.05);

    --display: 'Outfit', sans-serif;
    --sans: 'DM Sans', -apple-system, sans-serif;
  }

  /* ===== Theme Tokens (Light Override) ===== */
  [data-theme="light"] {
    --bg-primary: #f5f1e9;
    --bg-secondary: #ebe5db;
    --bg-tertiary: #e2dbd0;
    --text-primary: #1d242c;
    --text-secondary: #4a555f;
    --text-tertiary: #707b86;
    --accent-warm: #b98a5c;
    --accent-warm-dim: #8f6d4f;
    --accent-cool: #5d82a7;
    --accent-cool-dim: #6f90ac;
    --selection-text: #ffffff;

    --logo-color: #1f262d;
    --hero-subtitle-color: #475361;

    --nav-scrolled-bg: rgba(245, 241, 233, 0.86);
    --nav-scrolled-border: rgba(143, 109, 79, 0.2);
    --mobile-menu-bg: rgba(245, 241, 233, 0.97);

    --theme-toggle-text: #465360;
    --theme-toggle-border: rgba(143, 109, 79, 0.22);
    --theme-toggle-bg: rgba(255, 255, 255, 0.58);
    --theme-toggle-hover-border: rgba(93, 130, 167, 0.35);
    --theme-toggle-hover-bg: rgba(255, 255, 255, 0.85);

    --btn-border: rgba(143, 109, 79, 0.35);
    --btn-hover-text: #ffffff;
    --btn-secondary-border: rgba(93, 130, 167, 0.46);
    --btn-secondary-text: #405162;
    --btn-secondary-bg: rgba(93, 130, 167, 0.08);
    --btn-secondary-hover-border: rgba(93, 130, 167, 0.68);
    --btn-secondary-fill: linear-gradient(to right, rgba(93, 130, 167, 0.7), rgba(185, 138, 92, 0.72));

    --hero-flutes-bg: repeating-linear-gradient(
      to right,
      rgba(122, 111, 96, 0.05) 0px,
      rgba(255, 255, 255, 0.16) 2px,
      rgba(93, 130, 167, 0.08) 4px,
      rgba(255, 255, 255, 0.16) 6px,
      rgba(122, 111, 96, 0.05) 8px
    );
    --hero-overlay-bg: radial-gradient(ellipse at 50% 50%, rgba(255, 255, 255, 0.08) 0%, rgba(245, 241, 233, 0.42) 60%, var(--bg-primary) 88%);
    --hero-grain-opacity: 0.014;

    --framework-diagram-border: rgba(143, 109, 79, 0.2);
    --framework-diagram-bg: radial-gradient(120% 90% at 50% 0%, rgba(93, 130, 167, 0.16) 0%, rgba(93, 130, 167, 0) 62%), linear-gradient(180deg, rgba(255, 255, 255, 0.68), rgba(255, 255, 255, 0.38));
    --framework-gridline: rgba(93, 130, 167, 0.06);
    --framework-connector: rgba(143, 109, 79, 0.36);

    --system-pillar-border: rgba(93, 130, 167, 0.28);
    --system-pillar-bg: linear-gradient(180deg, rgba(93, 130, 167, 0.2), rgba(93, 130, 167, 0.06)), linear-gradient(180deg, rgba(255, 255, 255, 0.78), rgba(255, 255, 255, 0.4));
    --system-pillar-topline: rgba(93, 130, 167, 0.66);
    --system-pillar-linkline: rgba(143, 109, 79, 0.45);
    --system-desc-color: #4f5c68;

    --system-base-border: rgba(143, 109, 79, 0.28);
    --system-base-bg: linear-gradient(90deg, rgba(185, 138, 92, 0.24), rgba(93, 130, 167, 0.2)), linear-gradient(180deg, rgba(255, 255, 255, 0.84), rgba(255, 255, 255, 0.46));
    --system-base-topline: rgba(143, 109, 79, 0.55);

    --framework-hover-border: rgba(143, 109, 79, 0.36);
    --framework-hover-bg: linear-gradient(180deg, rgba(93, 130, 167, 0.27), rgba(93, 130, 167, 0.1)), linear-gradient(180deg, rgba(255, 255, 255, 0.88), rgba(255, 255, 255, 0.5));
    --framework-hover-shadow: inset 0 0 0 1px rgba(143, 109, 79, 0.12);
    --framework-base-hover-border: rgba(143, 109, 79, 0.42);
    --framework-base-hover-bg: linear-gradient(90deg, rgba(185, 138, 92, 0.3), rgba(93, 130, 167, 0.25)), linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.55));

    --insights-radial-bg: radial-gradient(ellipse at 50% 100%, rgba(185, 138, 92, 0.08) 0%, transparent 58%);
    --placeholder-border: rgba(143, 109, 79, 0.2);
    --placeholder-bg: rgba(255, 255, 255, 0.56);
    --placeholder-header-border: rgba(143, 109, 79, 0.16);
    --insight-card-border: rgba(143, 109, 79, 0.16);
    --insight-card-bg: rgba(255, 255, 255, 0.7);
    --insight-card-hover-border: rgba(143, 109, 79, 0.32);
    --insight-card-hover-bg: rgba(255, 255, 255, 0.9);
    --insight-media-border: rgba(143, 109, 79, 0.24);
    --insight-media-bg: radial-gradient(120% 140% at 20% 18%, rgba(93, 130, 167, 0.36) 0%, rgba(93, 130, 167, 0) 62%), radial-gradient(130% 150% at 86% 84%, rgba(185, 138, 92, 0.28) 0%, rgba(185, 138, 92, 0) 58%), linear-gradient(135deg, rgba(255, 255, 255, 0.9), rgba(235, 229, 219, 0.46));
    --insight-media-gridline: rgba(93, 130, 167, 0.12);
    --insight-media-topline: rgba(143, 109, 79, 0.72);
    --insight-thumb-color: rgba(29, 36, 44, 0.68);

    --field-border: rgba(143, 109, 79, 0.25);
    --field-bg: rgba(255, 255, 255, 0.78);
    --field-focus-border: rgba(93, 130, 167, 0.48);
    --field-focus-bg: rgba(255, 255, 255, 0.95);
    --footer-border: rgba(143, 109, 79, 0.16);
  }

  /* ===== Base Reset ===== */
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }

  html {
    scroll-behavior: smooth;
    scrollbar-width: thin;
    scrollbar-color: var(--text-tertiary) var(--bg-primary);
  }

  body {
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--sans);
    font-weight: 300;
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
  }

  ::selection {
    background: var(--accent-warm);
    color: var(--selection-text);
  }

  /* ===== Navigation ===== */
  nav {
    position: fixed;
    top: 2px;
    left: 0;
    right: 0;
    z-index: 200;
    padding: 1.35rem 3rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all 0.45s cubic-bezier(0.16, 1, 0.3, 1);
  }

  nav.scrolled {
    background: var(--nav-scrolled-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--nav-scrolled-border);
    padding: 1rem 3rem;
  }

  .nav-logo {
    font-family: var(--display);
    font-weight: 500;
    font-size: 1.48rem;
    letter-spacing: -0.01em;
    color: var(--logo-color);
    text-decoration: none;
    line-height: 1;
  }

  .nav-actions {
    display: flex;
    align-items: center;
    gap: 0.8rem;
  }

  .theme-toggle {
    border: 1px solid var(--theme-toggle-border);
    background: var(--theme-toggle-bg);
    color: var(--theme-toggle-text);
    font-family: var(--sans);
    font-size: 0.66rem;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    padding: 0.62rem 0.85rem;
    line-height: 1;
    border-radius: 999px;
    cursor: pointer;
    transition: border-color 0.3s ease, background 0.3s ease, color 0.3s ease;
  }

  .theme-toggle:hover {
    border-color: var(--theme-toggle-hover-border);
    background: var(--theme-toggle-hover-bg);
    color: var(--text-primary);
  }

  .theme-toggle:focus-visible {
    outline: 2px solid var(--accent-cool);
    outline-offset: 2px;
  }

  .nav-links {
    display: flex;
    gap: 2.1rem;
    list-style: none;
    align-items: center;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
  }

  .nav-links a {
    font-family: var(--sans);
    font-size: 0.75rem;
    font-weight: 400;
    letter-spacing: 0.13em;
    text-transform: uppercase;
    color: var(--text-secondary);
    text-decoration: none;
    position: relative;
    transition: color 0.3s ease;
  }

  .nav-links a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -4px;
    height: 1px;
    width: 0;
    background: var(--accent-warm);
    transition: width 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  }

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

  .nav-links a:hover::after {
    width: 100%;
  }

  .mobile-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 205;
  }

  .mobile-toggle span {
    display: block;
    width: 22px;
    height: 1px;
    background: var(--text-primary);
    margin: 6px 0;
    transition: all 0.3s ease;
  }

  .btn {
    position: relative;
    overflow: hidden;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.92rem 2.1rem;
    border: 1px solid var(--btn-border);
    color: var(--text-primary);
    background: transparent;
    text-decoration: none;
    font-family: var(--sans);
    font-size: 0.76rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    white-space: nowrap;
    cursor: pointer;
  }

  .btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--accent-warm);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: -1;
  }

  .btn:hover {
    color: var(--btn-hover-text);
    border-color: var(--accent-warm);
  }

  .btn:hover::before {
    transform: scaleX(1);
  }

  .btn-secondary {
    border-color: var(--btn-secondary-border);
    color: var(--btn-secondary-text);
    background: var(--btn-secondary-bg);
  }

  .btn-secondary::before {
    background: var(--btn-secondary-fill);
  }

  .btn-secondary:hover {
    color: var(--btn-hover-text);
    border-color: var(--btn-secondary-hover-border);
  }

  .nav-cta {
    padding: 0.75rem 1.4rem;
    font-size: 0.68rem;
    letter-spacing: 0.14em;
  }

  main section[id] {
    scroll-margin-top: 110px;
  }

  /* ===== Hero ===== */
  .hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 9rem 2rem 7rem;
  }

  .hero-gradient-canvas,
  .hero-flutes,
  .hero-overlay,
  .hero-grain {
    position: absolute;
    inset: 0;
  }

  .hero-gradient-canvas {
    z-index: 0;
  }

  .hero-gradient-canvas canvas {
    width: 100%;
    height: 100%;
  }

  .hero-flutes {
    z-index: 1;
    pointer-events: none;
    /* background: var(--hero-flutes-bg); */
  }

  .hero-overlay {
    z-index: 2;
    background: var(--hero-overlay-bg);
  }

  .hero-grain {
    opacity: var(--hero-grain-opacity);
    z-index: 3;
    pointer-events: none;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    background-repeat: repeat;
    background-size: 256px 256px;
  }

  .hero-content {
    position: relative;
    z-index: 4;
    text-align: center;
    max-width: 840px;
    margin: 0 auto;
    text-shadow: 0 2px 28px rgba(0, 0, 0, 0.6);
  }

  .hero-eyebrow {
    font-size: 0.74rem;
    font-weight: 500;
    letter-spacing: 0.33em;
    text-transform: uppercase;
    color: var(--accent-warm);
    margin-bottom: 1.6rem;
    opacity: 0;
    animation: fadeUp 1s cubic-bezier(0.16, 1, 0.3, 1) 0.24s forwards;
  }

  .hero-title {
    font-family: var(--display);
    font-weight: 300;
    font-size: clamp(2.35rem, 5.5vw, 4.75rem);
    line-height: 1.08;
    letter-spacing: -0.03em;
    margin-bottom: 1.5rem;
    opacity: 0;
    animation: fadeUp 1s cubic-bezier(0.16, 1, 0.3, 1) 0.42s forwards;
  }

  .hero-highlight {
    background: linear-gradient(135deg, #e8a44a, #4a8ec2);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
  }

  .hero-subtitle {
    font-size: 1.03rem;
    color: var(--hero-subtitle-color);
    max-width: 730px;
    margin: 0 auto;
    line-height: 1.85;
    opacity: 0;
    animation: fadeUp 1s cubic-bezier(0.16, 1, 0.3, 1) 0.6s forwards;
  }

  .hero-actions {
    margin-top: 2.1rem;
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    opacity: 0;
    animation: fadeUp 1s cubic-bezier(0.16, 1, 0.3, 1) 0.9s forwards;
  }

  .hero-actions .btn {
    min-width: 180px;
  }

  .hero-line {
    width: 1px;
    height: 76px;
    background: linear-gradient(to bottom, var(--accent-warm-dim), transparent);
    margin: 3rem auto 0;
    opacity: 0;
    animation: fadeUp 1s cubic-bezier(0.16, 1, 0.3, 1) 1.04s forwards;
  }

  section {
    padding: 8rem 3rem;
    position: relative;
  }

  .section-inner {
    max-width: 980px;
    margin: 0 auto;
  }

  .stacked {
    max-width: 760px;
    margin: 0 auto;
    text-align: center;
  }

  .section-label {
    font-size: 0.68rem;
    font-weight: 500;
    letter-spacing: 0.35em;
    text-transform: uppercase;
    color: var(--accent-warm-dim);
    margin-bottom: 1.5rem;
  }

  .section-title {
    font-family: var(--display);
    font-weight: 300;
    font-size: clamp(2rem, 3.4vw, 3rem);
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
  }

  .lead {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.85;
  }

  /* ===== About ===== */
  .about {
    background: var(--bg-secondary);
  }

  .about-copy {
    margin-top: 2.2rem;
    display: grid;
    gap: 1.45rem;
    justify-items: center;
    text-align: center;
  }

  .about-copy p {
    max-width: 68ch;
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.88;
  }

  .about-close {
    margin-top: 2rem;
    font-family: var(--display);
    font-size: 1.13rem;
    font-weight: 300;
    letter-spacing: -0.01em;
    color: var(--text-primary);
  }

  /* ===== Investment Framework ===== */
  .framework {
    background:
      radial-gradient(ellipse at 50% 55%, rgba(200, 168, 130, 0.04) 0%, rgba(123, 163, 196, 0.02) 25%, transparent 55%),
      var(--bg-primary);
  }

  .framework-diagram {
    margin: 3rem auto 2.3rem;
    padding: 1.8rem 1.35rem 1.25rem;
    border: 1px solid var(--framework-diagram-border);
    background: var(--framework-diagram-bg);
    max-width: 780px;
    position: relative;
    overflow: hidden;
    box-shadow:
      0 0 30px rgba(200, 168, 130, 0.04),
      0 0 60px rgba(123, 163, 196, 0.03);
  }

  .framework-diagram::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
      repeating-linear-gradient(
        to right,
        var(--framework-gridline) 0px,
        var(--framework-gridline) 1px,
        transparent 1px,
        transparent 48px
      );
    opacity: 0.18;
    pointer-events: none;
  }

  .framework-system {
    max-width: 710px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
  }

  .framework-superstructure {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.15rem;
    align-items: stretch;
    margin: 0 auto 1.05rem;
    max-width: 700px;
    position: relative;
    padding-bottom: 1.2rem;
  }

  .framework-superstructure::after {
    content: '';
    position: absolute;
    left: 11%;
    right: 11%;
    bottom: 0;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--framework-connector), transparent);
    animation: pulseLine 4s ease-in-out infinite;
  }

  .system-pillar {
    min-height: 236px;
    border: 1px solid var(--system-pillar-border);
    background: var(--system-pillar-bg);
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    text-align: left;
    padding: 1rem 1rem 1.05rem;
    position: relative;
    overflow: hidden;
    transition: border-color 0.35s ease, background 0.35s ease, box-shadow 0.35s ease;
  }

  .system-pillar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--system-pillar-topline), transparent);
  }

  .system-pillar::after {
    content: '';
    position: absolute;
    bottom: -1.2rem;
    left: 50%;
    width: 1px;
    height: 1.2rem;
    transform: translateX(-50%);
    background: linear-gradient(to bottom, var(--system-pillar-linkline), rgba(200, 168, 130, 0));
  }

  .system-kicker {
    font-size: 0.62rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--accent-cool);
    margin-bottom: 0.6rem;
  }

  .system-title {
    font-family: var(--display);
    font-size: 1.02rem;
    font-weight: 400;
    letter-spacing: -0.01em;
    color: var(--text-primary);
    line-height: 1.3;
    margin-bottom: 0.55rem;
  }

  .system-desc {
    color: var(--system-desc-color);
    font-size: 0.84rem;
    line-height: 1.65;
  }

  .system-base {
    max-width: 700px;
    margin: 0 auto;
    min-height: 126px;
    border: 1px solid var(--system-base-border);
    background: var(--system-base-bg);
    padding: 0.95rem 1.15rem;
    position: relative;
    transition: border-color 0.35s ease, background 0.35s ease, box-shadow 0.35s ease;
  }

  .system-base::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    width: 74%;
    max-width: 430px;
    transform: translateX(-50%);
    height: 1px;
    background: linear-gradient(to right, transparent, var(--system-base-topline), transparent);
  }

  .system-base .system-kicker {
    color: var(--accent-warm-dim);
  }

  .system-pillar:hover {
    border-color: var(--framework-hover-border);
    background: var(--framework-hover-bg);
    box-shadow: var(--framework-hover-shadow);
  }

  .system-base:hover {
    border-color: var(--framework-base-hover-border);
    background: var(--framework-base-hover-bg);
    box-shadow: var(--framework-hover-shadow);
  }

  .framework-close {
    margin-top: 1.8rem;
    color: var(--text-primary);
    font-size: 1rem;
    line-height: 1.85;
  }

  /* ===== Insights ===== */
  .insights {
    background: var(--bg-secondary);
    overflow: hidden;
  }

  .insights-bg {
    position: absolute;
    inset: 0;
    background: var(--insights-radial-bg);
    pointer-events: none;
  }

  .insights .section-inner {
    position: relative;
    z-index: 1;
  }

  .substack-feed {
    margin-top: 2.6rem;
    border: 1px solid var(--placeholder-border);
    background: var(--placeholder-bg);
    padding: 1.35rem;
    text-align: left;
  }

  .substack-feed-loading {
    font-size: 0.86rem;
    color: var(--text-secondary);
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }

  .substack-feed-state {
    border: 1px solid var(--insight-card-border);
    background: var(--insight-card-bg);
    padding: 1.3rem 1.2rem;
  }

  .substack-feed-state h3 {
    font-family: var(--display);
    font-size: 1.1rem;
    font-weight: 400;
    color: var(--text-primary);
    margin-bottom: 0.45rem;
  }

  .substack-feed-state p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.72;
  }

  .substack-feed-error {
    border-color: var(--insight-media-border);
  }

  .insight-cards {
    display: grid;
    gap: 0.9rem;
  }

  .insight-card-link {
    display: block;
    color: inherit;
    text-decoration: none;
  }

  .insight-card {
    padding: 1rem;
    border: 1px solid var(--insight-card-border);
    background: var(--insight-card-bg);
    min-height: 164px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 180px;
    gap: 1rem;
    align-items: stretch;
    transition: border-color 0.35s ease, background 0.35s ease;
  }

  .insight-card-link:hover .insight-card,
  .insight-card:hover {
    border-color: var(--insight-card-hover-border);
    background: var(--insight-card-hover-bg);
  }

  .insight-card h3 {
    font-family: var(--display);
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-primary);
    line-height: 1.35;
    letter-spacing: -0.01em;
    margin-bottom: 0.7rem;
  }

  .insight-body {
    font-size: 0.89rem;
    color: var(--text-secondary);
    line-height: 1.72;
  }

  .insight-content {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
  }

  .insight-meta {
    margin-top: 0.8rem;
    font-size: 0.68rem;
    color: var(--text-tertiary);
    letter-spacing: 0.12em;
    text-transform: uppercase;
  }

  .insight-card-media {
    position: relative;
    border: 1px solid var(--insight-media-border);
    min-height: 132px;
    background: var(--insight-media-bg);
    overflow: hidden;
  }

  .insight-card-media.has-image {
    background: none;
  }

  .insight-card-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
  }

  .insight-card-media::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
      repeating-linear-gradient(
        to bottom,
        var(--insight-media-gridline) 0px,
        var(--insight-media-gridline) 1px,
        transparent 1px,
        transparent 20px
      );
    opacity: 0.3;
  }

  .insight-card-media.has-image::before {
    display: none;
  }

  .insight-card-media::after {
    content: "";
    position: absolute;
    top: 0;
    left: 12%;
    right: 12%;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--insight-media-topline), transparent);
  }

  .insight-thumb-tag {
    position: absolute;
    left: 0.65rem;
    bottom: 0.6rem;
    font-size: 0.58rem;
    letter-spacing: 0.17em;
    text-transform: uppercase;
    color: var(--insight-thumb-color);
    z-index: 2;
  }

  .insights-cta {
    margin-top: 2rem;
    text-align: center;
  }

  /* ===== Contact ===== */
  .contact {
    background:
      radial-gradient(ellipse at 50% 100%, rgba(200, 168, 130, 0.12) 0%, rgba(123, 163, 196, 0.06) 30%, transparent 65%),
      var(--bg-primary);
  }

  .contact-form {
    margin-top: 2rem;
    display: grid;
    gap: 0.95rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
  }

  .field {
    width: 100%;
    border: 1px solid var(--field-border);
    background: var(--field-bg);
    color: var(--text-primary);
    padding: 0.9rem 1rem;
    font-family: var(--sans);
    font-size: 0.9rem;
    font-weight: 300;
    line-height: 1.4;
    transition: border-color 0.3s ease, background 0.3s ease;
  }

  .field::placeholder {
    color: var(--text-tertiary);
  }

  .field:focus {
    outline: none;
    border-color: var(--field-focus-border);
    background: var(--field-focus-bg);
  }

  textarea.field {
    min-height: 140px;
    resize: vertical;
  }

  /* ===== Footer ===== */
  footer {
    background: var(--bg-primary);
    border-top: 1px solid var(--footer-border);
    padding: 2.4rem 3rem;
  }

  .footer-inner {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    position: relative;
    align-items: center;
    gap: 1rem;
  }

  .footer-brand {
    font-family: var(--display);
    font-size: 0.95rem;
    font-weight: 400;
    color: var(--text-secondary);
  }

  .footer-nav {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
  }

  .footer-nav a {
    font-size: 0.69rem;
    letter-spacing: 0.13em;
    text-transform: uppercase;
    color: var(--text-tertiary);
    text-decoration: none;
    transition: color 0.3s ease;
  }

  .footer-nav a:hover {
    color: var(--text-secondary);
  }

  .footer-copy {
    font-size: 0.7rem;
    color: var(--text-tertiary);
    letter-spacing: 0.05em;
  }

  .reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  }

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

  .stagger > .reveal:nth-child(1) { transition-delay: 0s; }
  .stagger > .reveal:nth-child(2) { transition-delay: 0.1s; }
  .stagger > .reveal:nth-child(3) { transition-delay: 0.2s; }
  .stagger > .reveal:nth-child(4) { transition-delay: 0.3s; }
  .stagger > .reveal:nth-child(5) { transition-delay: 0.4s; }

  @keyframes fadeUp {
    from {
      opacity: 0;
      transform: translateY(18px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  @keyframes pulseLine {
    0%, 100% { opacity: 0.35; }
    50% { opacity: 0.9; }
  }

  @media (max-width: 980px) {
    nav,
    nav.scrolled {
      padding-left: 1.5rem;
      padding-right: 1.5rem;
    }

    .nav-links {
      display: none;
      position: fixed;
      top: 0;
      left: 0;
      width: 100vw;
      height: 100vh;
      height: 100dvh;
      transform: none;
      background: var(--mobile-menu-bg);
      backdrop-filter: blur(28px);
      -webkit-backdrop-filter: blur(28px);
      flex-direction: column;
      justify-content: center;
      gap: 2rem;
      align-items: center;
      z-index: 201;
    }

    .nav-links.open {
      display: flex;
    }

    .nav-links a {
      font-size: 0.95rem;
    }

    .mobile-toggle {
      display: block;
    }

    .mobile-toggle.open span:nth-child(1) {
      transform: rotate(45deg) translate(5px, 5px);
    }

    .mobile-toggle.open span:nth-child(2) {
      opacity: 0;
    }

    .mobile-toggle.open span:nth-child(3) {
      transform: rotate(-45deg) translate(5px, -5px);
    }

    .nav-cta {
      display: none;
    }

    .nav-actions {
      margin-left: auto;
      margin-right: 0.55rem;
    }

    .theme-toggle {
      padding: 0.58rem 0.78rem;
      font-size: 0.62rem;
      letter-spacing: 0.13em;
    }

    section {
      padding: 6rem 1.5rem;
    }

    .hero {
      padding-top: 8.5rem;
    }

    .hero-actions {
      flex-direction: column;
      align-items: center;
    }

    .btn {
      min-width: 220px;
    }

    .framework-diagram {
      padding: 1.35rem 0.8rem 1rem;
    }

    .framework-superstructure {
      gap: 0.7rem;
      padding-bottom: 1rem;
    }

    .system-pillar {
      min-height: 220px;
      padding: 0.8rem 0.7rem 0.85rem;
    }

    .system-title {
      font-size: 0.88rem;
      line-height: 1.3;
    }

    .system-desc {
      font-size: 0.79rem;
      line-height: 1.6;
    }

    .system-base {
      min-height: 116px;
      padding: 0.8rem 0.8rem;
    }

    .insight-card {
      grid-template-columns: 1fr;
      gap: 0.85rem;
    }

    .insight-card-media {
      order: -1;
      min-height: 126px;
    }
    .footer-inner {
      flex-direction: column;
      text-align: center;
      gap: 0.8rem;
    }

    .footer-nav {
      position: static;
      transform: none;
    }
  }