:root {
      --color-primary: #004341;
      --color-primary-deep: #063a39;
      --color-primary-soft: #cde8e6;
      --color-primary-fixed: #aaefec;
      --color-primary-fixed-dim: #8ed3cf;

      --color-secondary: #4a6362;
      --color-secondary-container: #cde8e6;

      --color-tertiary: #5d2f14;
      --color-tertiary-soft: #794528;

      --color-bg: #fafaf5;
      --color-surface: #fafaf5;
      --color-surface-low: #f4f4ef;
      --color-surface-container: #eeeee9;
      --color-surface-container-high: #e8e8e3;
      --color-surface-container-highest: #e3e3de;
      --color-surface-lowest: #ffffff;

      --color-text: #1a1c19;
      --color-text-soft: #3f4948;
      --color-text-muted: rgba(26, 28, 25, 0.72);
      --color-outline: #6f7978;
      --color-outline-soft: #bec9c7;

      --font-heading: "Newsreader", serif;
      --font-body: "Manrope", sans-serif;

      --radius-sm: 4px;
      --radius-md: 8px;
      --radius-lg: 12px;
      --radius-xl: 16px;

      --shadow-sm: 0 4px 14px rgba(0, 0, 0, 0.04);
      --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.08);
      --shadow-lg: 0 20px 45px rgba(0, 0, 0, 0.12);

      --transition: all 0.3s ease;
      --section-padding: 110px;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-body);
      background: var(--color-bg);
      color: var(--color-text);
    }

    img,
    video {
      max-width: 100%;
      display: block;
    }

    a {
      text-decoration: none;
    }

    .material-symbols-outlined {
      font-variation-settings: "FILL" 0, "wght" 400, "GRAD" 0, "opsz" 24;
      line-height: 1;
      vertical-align: middle;
    }

    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 1000;
      background: rgba(250, 250, 245, 0.92);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      box-shadow: 0 2px 12px rgba(0, 0, 0, 0.03);
      transition: var(--transition);
    }

    .navbar-brand-custom {
      font-family: var(--font-heading);
      font-style: italic;
      font-size: 1.65rem;
      color: var(--color-primary);
      font-weight: 500;
      letter-spacing: 0.01em;
    }

    .main-nav .nav-link {
      font-family: var(--font-heading);
      font-size: 0.72rem;
      text-transform: uppercase;
      letter-spacing: 0.22em;
      color: var(--color-primary);
      padding: 0.4rem 0.2rem;
      position: relative;
    }

    .main-nav .nav-link.active::after,
    .main-nav .nav-link:hover::after {
      content: "";
      position: absolute;
      bottom: -6px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--color-primary);
    }

    .btn-site {
      border-radius: var(--radius-md);
      padding: 0.95rem 1.7rem;
      font-weight: 700;
      font-size: 0.82rem;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      transition: var(--transition);
      border: 1px solid transparent;
    }

    .btn-site-primary {
      background: var(--color-primary);
      color: #fff;
    }

    .btn-site-primary:hover {
      background: var(--color-primary-deep);
      color: #fff;
    }

    .btn-site-light {
      background: #fff;
      color: var(--color-primary);
      border-color: rgba(255, 255, 255, 0.35);
    }

    .btn-site-light:hover {
      background: var(--color-surface-low);
      color: var(--color-primary);
    }

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

    .btn-site-outline:hover {
      background: var(--color-surface-low);
      color: var(--color-text);
    }

    .btn-site-glass {
      background: rgba(255, 255, 255, 0.08);
      color: #fff;
      border: 1px solid rgba(255, 255, 255, 0.24);
      backdrop-filter: blur(8px);
      -webkit-backdrop-filter: blur(8px);
    }

    .btn-site-glass:hover {
      background: rgba(255, 255, 255, 0.16);
      color: #fff;
    }

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

    .eyebrow {
      display: inline-block;
      margin-bottom: 1rem;
      font-size: 0.68rem;
      font-weight: 700;
      letter-spacing: 0.28em;
      text-transform: uppercase;
      color: var(--color-primary);
    }

    .section-title {
      font-family: var(--font-heading);
      font-size: clamp(2.1rem, 4vw, 3.5rem);
      line-height: 1.08;
      font-weight: 400;
      color: var(--color-text);
      margin-bottom: 1.5rem;
    }

    .section-copy {
      font-size: 1.05rem;
      line-height: 1.8;
      color: var(--color-text-muted);
    }

    .hero-section {
      position: relative;
      min-height: 920px;
      padding-top: 120px;
      display: flex;
      align-items: center;
      overflow: hidden;
    }

    .hero-bg {
      position: absolute;
      inset: 0;
      z-index: 0;
      overflow: hidden;
    }

    .hero-bg video,
    .hero-bg img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .hero-bg::after {
      content: "";
      position: absolute;
      inset: 0;
      background: rgba(0, 67, 65, 0.42);
      mix-blend-mode: multiply;
    }

    .hero-content {
      position: relative;
      z-index: 2;
      color: #fff;
      max-width: 760px;
    }

    .hero-eyebrow {
      color: rgba(255, 255, 255, 0.9);
    }

    .hero-title {
      font-family: var(--font-heading);
      font-style: italic;
      font-weight: 400;
      font-size: clamp(3rem, 7vw, 6rem);
      line-height: 1.04;
      color: #fff;
      margin-bottom: 2rem;
    }

    .hero-copy {
      max-width: 640px;
      font-size: 1.22rem;
      line-height: 1.85;
      color: rgba(255, 255, 255, 0.82);
      margin-bottom: 2.6rem;
    }

    .pillars-section {
      background: var(--color-surface);
    }

    .pillar-card {
      background: var(--color-surface-low);
      height: 100%;
      padding: 2.3rem;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      min-height: 330px;
    }

    .pillar-card.white {
      background: var(--color-surface-lowest);
      box-shadow: var(--shadow-sm);
    }

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

    .pillar-icon {
      font-size: 2.2rem;
      margin-bottom: 1.8rem;
      color: var(--color-primary);
      font-variation-settings: "FILL" 1, "wght" 500, "GRAD" 0, "opsz" 24;
    }

    .pillar-card.tertiary-icon .pillar-icon {
      color: var(--color-tertiary-soft);
    }

    .pillar-title {
      font-family: var(--font-heading);
      font-size: 1.7rem;
      line-height: 1.2;
      margin-bottom: 1rem;
      color: var(--color-text);
    }

    .pillar-copy {
      font-size: 0.98rem;
      line-height: 1.9;
      color: var(--color-text-soft);
    }

    .card-link {
      display: inline-flex;
      align-items: center;
      gap: 0.45rem;
      margin-top: 1.8rem;
      color: var(--color-primary);
      font-weight: 800;
      font-size: 0.9rem;
    }

    .card-link .material-symbols-outlined {
      font-size: 1rem;
      transition: var(--transition);
    }

    .card-link:hover .material-symbols-outlined {
      transform: translateX(4px);
    }

    .schedule-section {
      background: var(--color-surface-low);
      overflow: hidden;
    }

    .schedule-sticky {
      position: sticky;
      top: 120px;
    }

    .schedule-list .schedule-item {
      background: var(--color-surface);
      padding: 2rem;
      display: flex;
      align-items: center;
      gap: 2rem;
      transition: var(--transition);
      border-bottom: 1px solid rgba(111, 121, 120, 0.08);
    }

    .schedule-list .schedule-item:hover {
      transform: translateX(8px);
      box-shadow: var(--shadow-sm);
    }

    .schedule-month {
      width: 88px;
      flex-shrink: 0;
      font-family: var(--font-heading);
      font-size: 2rem;
      color: var(--color-primary);
      opacity: 0.32;
      transition: var(--transition);
    }

    .schedule-item:hover .schedule-month {
      opacity: 1;
    }

    .schedule-title {
      font-size: 1.18rem;
      font-weight: 800;
      margin-bottom: 0.35rem;
      color: var(--color-text);
    }

    .schedule-copy {
      margin: 0;
      font-size: 0.98rem;
      color: var(--color-text-soft);
      line-height: 1.7;
    }

    .schedule-icon {
      margin-left: auto;
      color: var(--color-outline-soft);
      font-size: 1.2rem;
    }

    .conference-section {
      position: relative;
      background: var(--color-primary);
      overflow: hidden;
      color: #fff;
    }

    .conference-bg {
      position: absolute;
      inset: 0;
      opacity: 0.1;
      mix-blend-mode: overlay;
    }

    .conference-bg img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .conference-copy {
      position: relative;
      z-index: 2;
    }

    .conference-copy .eyebrow {
      color: var(--color-primary-fixed);
    }

    .conference-title {
      font-family: var(--font-heading);
      font-size: clamp(2.6rem, 5vw, 4.4rem);
      line-height: 1.08;
      color: #fff;
      margin-bottom: 1.8rem;
    }

    .conference-text {
      font-size: 1.2rem;
      line-height: 1.85;
      color: rgba(170, 239, 236, 0.82);
      margin-bottom: 2.4rem;
      max-width: 580px;
    }

    .conference-media-wrap {
      position: relative;
      z-index: 2;
    }

    .conference-glow {
      position: absolute;
      inset: -18px;
      background: rgba(10, 92, 90, 0.3);
      filter: blur(36px);
      opacity: 0.5;
      transition: var(--transition);
    }

    .conference-media-wrap:hover .conference-glow {
      opacity: 1;
    }

    .conference-media {
      position: relative;
      aspect-ratio: 16 / 9;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-lg);
      background: #000;
    }

    .conference-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      opacity: 0.82;
    }

    .play-button {
      position: absolute;
      inset: 0;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .play-button span {
      width: 92px;
      height: 92px;
      border-radius: 50%;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: rgba(255, 255, 255, 0.18);
      backdrop-filter: blur(10px);
      -webkit-backdrop-filter: blur(10px);
      color: #fff;
      font-size: 2rem;
      transition: var(--transition);
      font-variation-settings: "FILL" 1, "wght" 500, "GRAD" 0, "opsz" 24;
    }

    .play-button span:hover {
      transform: scale(1.08);
    }

    .founders-section {
      background: var(--color-surface);
    }

    .founder-card {
      height: 100%;
    }

    .founder-image {
      position: relative;
      overflow: hidden;
      border-radius: var(--radius-md);
      background: var(--color-surface-container-high);
      aspect-ratio: 3 / 4;
      margin-bottom: 1.8rem;
    }

    .founder-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      filter: grayscale(100%);
      transform: scale(1.05);
      transition: 0.7s ease;
    }

    .founder-card:hover .founder-image img {
      filter: grayscale(0%);
      transform: scale(1);
    }

    .founder-name {
      font-family: var(--font-heading);
      font-size: 1.8rem;
      font-style: italic;
      margin-bottom: 0.45rem;
      color: var(--color-text);
    }

    .founder-role {
      color: var(--color-primary);
      font-size: 0.78rem;
      font-weight: 800;
      letter-spacing: 0.2em;
      text-transform: uppercase;
    }

    .big-cta-box {
      background: var(--color-secondary-container);
      border-radius: var(--radius-lg);
      padding: 4rem 2rem;
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    .big-cta-title {
      font-family: var(--font-heading);
      font-size: clamp(2.5rem, 4vw, 4rem);
      line-height: 1.08;
      color: var(--color-primary);
      margin-bottom: 1.3rem;
    }

    .big-cta-copy {
      max-width: 700px;
      margin: 0 auto 2.3rem;
      font-size: 1.2rem;
      color: rgba(74, 99, 98, 0.9);
      line-height: 1.8;
    }

    .testimonials-section {
      background: var(--color-bg);
    }

    .testimonial-card {
      background: var(--color-surface-lowest);
      box-shadow: var(--shadow-sm);
      border-left: 4px solid var(--color-primary);
      padding: 2.2rem;
      height: 100%;
    }

    .testimonial-quote {
      font-family: var(--font-heading);
      font-size: 1.55rem;
      line-height: 1.65;
      font-style: italic;
      color: var(--color-text);
      margin-bottom: 1.7rem;
    }

    .testimonial-author {
      font-size: 0.75rem;
      letter-spacing: 0.18em;
      text-transform: uppercase;
      color: var(--color-text-soft);
      font-weight: 700;
    }

    .faq-section {
      background: var(--color-surface-low);
    }

    .faq-box {
      max-width: 900px;
      margin: 0 auto;
    }

    .faq-title {
      text-align: center;
      font-family: var(--font-heading);
      font-size: clamp(2.3rem, 4vw, 3.3rem);
      margin-bottom: 3rem;
      color: var(--color-text);
    }

    .accordion-item.site-accordion-item {
      border: none;
      border-radius: var(--radius-md);
      overflow: hidden;
      margin-bottom: 1rem;
      background: #fff;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
    }

    .accordion-button.site-accordion-btn {
      background: #fff;
      color: var(--color-text);
      font-weight: 800;
      padding: 1.4rem 1.5rem;
      box-shadow: none;
    }

    .accordion-button.site-accordion-btn:not(.collapsed) {
      background: #fff;
      color: var(--color-text);
      box-shadow: none;
    }

    .accordion-body.site-accordion-body {
      padding: 0 1.5rem 1.5rem;
      color: var(--color-text-soft);
      line-height: 1.8;
    }

    .site-footer {
      background: var(--color-surface-low);
      border-top: 1px solid rgba(190, 201, 199, 0.3);
      margin-top: 5rem;
    }

    .footer-brand {
      font-family: var(--font-heading);
      font-size: 1.45rem;
      color: var(--color-primary);
    }

    .footer-copy {
      max-width: 320px;
      font-size: 0.96rem;
      line-height: 1.8;
      color: rgba(26, 28, 25, 0.72);
    }

    .footer-title {
      font-family: var(--font-heading);
      font-size: 0.8rem;
      text-transform: uppercase;
      letter-spacing: 0.2em;
      color: var(--color-primary);
      margin-bottom: 1.8rem;
    }

    .footer-links li + li {
      margin-top: 0.85rem;
    }

    .footer-links a,
    .footer-contact {
      color: rgba(26, 28, 25, 0.72);
      font-size: 0.94rem;
      transition: var(--transition);
    }

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

    .footer-bottom {
      border-top: 1px solid rgba(190, 201, 199, 0.18);
      padding-top: 1.5rem;
      margin-top: 1.5rem;
    }

    .footer-bottom p {
      margin: 0;
      color: rgba(26, 28, 25, 0.52);
      font-size: 0.9rem;
    }

    .footer-social {
      display: flex;
      gap: 1rem;
      align-items: center;
    }

    .footer-social span {
      color: rgba(0, 67, 65, 0.38);
      cursor: pointer;
      transition: var(--transition);
    }

    .footer-social span:hover {
      color: var(--color-primary);
    }

    @media (max-width: 1199.98px) {
      .hero-section {
        min-height: 820px;
      }

      .schedule-sticky {
        position: static;
      }
    }

    @media (max-width: 991.98px) {
      :root {
        --section-padding: 90px;
      }

      .hero-section {
        min-height: 760px;
        padding-top: 110px;
      }

      .hero-copy {
        font-size: 1.08rem;
      }

      .schedule-list .schedule-item {
        padding: 1.5rem;
        gap: 1.2rem;
      }

      .schedule-month {
        width: 64px;
        font-size: 1.5rem;
      }

      .big-cta-box {
        padding: 3.2rem 1.5rem;
      }
    }

    @media (max-width: 767.98px) {
      :root {
        --section-padding: 72px;
      }

      .site-header .container-xxl {
        padding-left: 1rem;
        padding-right: 1rem;
      }

      .navbar-brand-custom {
        font-size: 1.3rem;
      }

      .hero-section {
        min-height: 700px;
      }

      .hero-title {
        font-size: 3.2rem;
      }

      .hero-copy {
        font-size: 1rem;
      }

      .pillar-card {
        min-height: auto;
      }

      .schedule-list .schedule-item {
        flex-wrap: wrap;
      }

      .schedule-icon {
        margin-left: 0;
      }

      .conference-title {
        font-size: 2.4rem;
      }

      .conference-text,
      .big-cta-copy {
        font-size: 1rem;
      }

      .testimonial-quote {
        font-size: 1.3rem;
      }

      .footer-bottom {
        text-align: center;
      }

      .footer-social {
        justify-content: center;
      }
    }