:root {
      --bg: #07090d;
      --panel: rgba(255, 255, 255, 0.075);
      --text: #f6f7fb;
      --muted: #aeb7c7;
      --line: rgba(255, 255, 255, 0.15);
      --cyan: #54f4d0;
      --blue: #68a8ff;
      --violet: #a986ff;
      --gold: #f4c46d;
      --max: 1180px;
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      min-width: 320px;
      background: var(--bg);
      color: var(--text);
      font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      line-height: 1.65;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
      text-rendering: optimizeLegibility;
    }

    .skip-link {
      position: fixed;
      top: 10px;
      left: 10px;
      z-index: 20;
      transform: translateY(-140%);
      border-radius: 999px;
      background: var(--cyan);
      color: #04100d;
      padding: 10px 14px;
      font-weight: 850;
      text-decoration: none;
      transition: transform 0.18s ease;
    }

    .skip-link:focus {
      transform: translateY(0);
    }

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

    a:focus-visible,
    button:focus-visible,
    input:focus-visible,
    select:focus-visible,
    textarea:focus-visible,
    summary:focus-visible {
      outline: 3px solid #ffffff;
      outline-offset: 4px;
      box-shadow: 0 0 0 6px rgba(0, 95, 204, 0.75);
    }

    body::before {
      content: "";
      position: fixed;
      inset: 0;
      z-index: -3;
      background:
        radial-gradient(circle at 15% 15%, rgba(84, 244, 208, 0.24), transparent 32%),
        radial-gradient(circle at 84% 12%, rgba(169, 134, 255, 0.22), transparent 30%),
        radial-gradient(circle at 74% 72%, rgba(104, 168, 255, 0.18), transparent 36%),
        linear-gradient(145deg, #07090d 0%, #10131c 48%, #090b10 100%);
    }

    #ai-field {
      position: fixed;
      inset: 0;
      z-index: -2;
      width: 100%;
      height: 100%;
      opacity: 0.56;
    }

    .grain {
      position: fixed;
      inset: 0;
      z-index: -1;
      pointer-events: none;
      background-image:
        linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
      background-size: 72px 72px;
      mask-image: linear-gradient(to bottom, black, transparent 86%);
    }

    nav {
      position: fixed;
      inset: 0 0 auto;
      z-index: 50;
      border-bottom: 1px solid var(--line);
      background: rgba(7, 9, 13, 0.72);
      backdrop-filter: blur(22px);
    }

    .nav-inner {
      width: min(var(--max), calc(100% - 28px));
      min-height: 72px;
      margin: 0 auto;
      display: flex;
      align-items: center;
      gap: 14px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 11px;
      color: var(--text);
      text-decoration: none;
      font-size: 0.94rem;
      font-weight: 850;
      text-transform: uppercase;
      white-space: nowrap;
    }

    .brand-mark {
      width: 34px;
      height: 34px;
      border: 1px solid rgba(84, 244, 208, 0.5);
      border-radius: 10px;
      display: grid;
      place-items: center;
      background: linear-gradient(135deg, rgba(84,244,208,0.24), rgba(169,134,255,0.18));
      box-shadow: 0 0 34px rgba(84, 244, 208, 0.18);
    }

    .brand-mark::before {
      content: "";
      width: 11px;
      height: 11px;
      border-radius: 50%;
      background: var(--cyan);
      box-shadow: 0 0 0 7px rgba(84,244,208,0.14), 0 0 24px var(--cyan);
    }

    .nav-links {
      margin: 0 0 0 auto;
      padding: 0;
      list-style: none;
      display: flex;
      gap: 4px;
      align-items: center;
    }

    .nav-links a {
      display: inline-flex;
      min-height: 38px;
      align-items: center;
      padding: 0 8px;
      color: rgba(246,247,251,0.78);
      text-decoration: none;
      border-radius: 10px;
      font-size: 0.72rem;
      font-weight: 760;
      text-transform: uppercase;
    }

    .nav-links a:hover {
      color: #fff;
      background: rgba(255,255,255,0.08);
    }

    .lang-switcher {
      display: flex;
      gap: 4px;
      align-items: center;
    }

    .lang-switcher button {
      min-width: 44px;
      min-height: 44px;
      border: 1px solid var(--line);
      border-radius: 10px;
      background: rgba(255,255,255,0.055);
      color: rgba(246,247,251,0.78);
      font-weight: 850;
      font-size: 0.72rem;
      cursor: pointer;
    }

    .lang-switcher button.active {
      background: var(--cyan);
      border-color: var(--cyan);
      color: #04100d;
    }

    .menu-btn {
      display: none;
      width: 42px;
      height: 42px;
      margin-left: auto;
      border: 1px solid var(--line);
      border-radius: 12px;
      background: rgba(255,255,255,0.07);
      color: var(--text);
      cursor: pointer;
    }

    .menu-btn span {
      display: block;
      width: 18px;
      height: 2px;
      margin: 4px auto;
      border-radius: 3px;
      background: currentColor;
    }

    .hero {
      min-height: 100svh;
      display: grid;
      align-items: end;
      padding: 132px 0 54px;
      position: relative;
    }

    .hero-inner {
      width: min(var(--max), calc(100% - 28px));
      margin: 0 auto;
      display: grid;
      grid-template-columns: minmax(0, 1.12fr) 380px;
      gap: 42px;
      align-items: end;
    }

    .hero-side {
      display: grid;
      gap: 18px;
      align-self: end;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      margin: 0 0 18px;
      color: var(--cyan);
      font-size: 0.82rem;
      font-weight: 850;
      text-transform: uppercase;
    }

    .eyebrow::before {
      content: "";
      width: 36px;
      height: 1px;
      background: linear-gradient(90deg, var(--cyan), transparent);
    }

    h1, h2, h3 {
      margin: 0;
      line-height: 0.98;
      letter-spacing: -0.045em;
      font-weight: 880;
    }

    h1 {
      max-width: 920px;
      font-size: clamp(4.1rem, 9.4vw, 9.6rem);
      text-transform: uppercase;
    }

    .hero-title > span {
      display: block;
      color: transparent;
      -webkit-text-stroke: 1.2px rgba(246,247,251,0.72);
      text-stroke: 1.2px rgba(246,247,251,0.72);
    }

    .dti-letter {
      display: inline-block;
      color: var(--cyan);
      -webkit-text-stroke: 0;
      text-stroke: 0;
      text-shadow:
        0 0 18px rgba(84, 244, 208, 0.72),
        0 0 46px rgba(104, 168, 255, 0.42);
    }

    .hero-copy {
      max-width: 760px;
      margin: 24px 0 0;
      color: var(--muted);
      font-size: clamp(1.08rem, 1.6vw, 1.32rem);
      line-height: 1.6;
    }

    .value-prop {
      max-width: 760px;
      margin: 18px 0 0;
      color: var(--text);
      font-size: clamp(1.15rem, 1.8vw, 1.48rem);
      line-height: 1.35;
      font-weight: 850;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 30px;
    }

    .button {
      min-height: 52px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 0 18px;
      border-radius: 14px;
      border: 1px solid rgba(255,255,255,0.2);
      color: var(--text);
      text-decoration: none;
      font-weight: 840;
      text-transform: uppercase;
      font-size: 0.84rem;
    }

    .button.primary {
      color: #05100d;
      background: linear-gradient(135deg, var(--cyan), #b9fff0);
      border-color: transparent;
      box-shadow: 0 24px 58px rgba(84,244,208,0.18);
    }

    .button:disabled {
      cursor: wait;
      opacity: 0.62;
    }

    .button.secondary {
      background: rgba(255,255,255,0.07);
      backdrop-filter: blur(12px);
    }

    .hero-video-card {
      position: relative;
      overflow: hidden;
      border: 1px solid var(--line);
      border-radius: 18px;
      background: linear-gradient(180deg, rgba(255,255,255,0.1), rgba(255,255,255,0.04));
      box-shadow: 0 24px 70px rgba(0,0,0,0.24);
      backdrop-filter: blur(16px);
    }

    .hero-video {
      display: block;
      width: 100%;
      aspect-ratio: 16 / 9;
      object-fit: cover;
      border: 0;
      background: #02050a;
    }

    .event-panel {
      border: 1px solid var(--line);
      border-radius: 22px;
      background: linear-gradient(180deg, rgba(255,255,255,0.12), rgba(255,255,255,0.055));
      box-shadow: 0 30px 90px rgba(0,0,0,0.28);
      overflow: hidden;
      backdrop-filter: blur(18px);
    }

    .event-panel .top {
      padding: 22px;
      border-bottom: 1px solid var(--line);
    }

    .event-panel .date {
      color: var(--gold);
      font-size: 2.3rem;
      line-height: 1;
      font-weight: 900;
      letter-spacing: -0.04em;
    }

    .event-panel .meta {
      margin-top: 10px;
      color: var(--muted);
      font-size: 0.98rem;
    }

    .metric-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
    }

    .metric {
      min-height: 110px;
      padding: 18px;
      border-right: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
    }

    .metric:nth-child(even) { border-right: 0; }
    .metric strong {
      display: block;
      color: var(--text);
      font-size: 1.25rem;
      line-height: 1.1;
    }

    .metric span {
      display: block;
      margin-top: 8px;
      color: var(--muted);
      font-size: 0.82rem;
      text-transform: uppercase;
      font-weight: 780;
    }

    .countdown-metric {
      grid-column: span 1;
    }

    .countdown-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 8px;
      align-items: end;
    }

    .countdown-unit strong {
      font-size: 1.18rem;
      font-variant-numeric: tabular-nums;
    }

    .countdown-unit span {
      margin-top: 5px;
      font-size: 0.68rem;
      letter-spacing: 0.02em;
    }

    .metric .countdown-caption {
      margin-top: 12px;
      color: var(--muted);
    }

    main {
      width: min(var(--max), calc(100% - 28px));
      margin: 0 auto;
    }

    section {
      padding: 96px 0;
      border-top: 1px solid rgba(255,255,255,0.1);
      scroll-margin-top: 100px;
    }

    .section-head {
      display: grid;
      grid-template-columns: 0.72fr 1fr;
      gap: 36px;
      align-items: start;
      margin-bottom: 34px;
    }

    .section-kicker {
      color: var(--cyan);
      font-size: 0.8rem;
      font-weight: 880;
      text-transform: uppercase;
    }

    h2 {
      font-size: clamp(2.3rem, 5vw, 5.2rem);
      text-transform: uppercase;
    }

    .lead {
      margin: 0;
      color: var(--muted);
      font-size: clamp(1.05rem, 1.55vw, 1.28rem);
      line-height: 1.7;
    }

    .copy {
      color: var(--muted);
      font-size: 1.03rem;
      max-width: 920px;
    }

    .copy p { margin: 0 0 18px; }
    .copy strong { color: var(--text); }

    .section-subtitle {
      margin: 30px 0 14px;
      color: var(--cyan);
      font-size: 0.95rem;
      font-weight: 900;
      text-transform: uppercase;
      letter-spacing: 0.02em;
    }

    .pillars {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 14px;
      margin-top: 34px;
    }

    .card {
      border: 1px solid var(--line);
      border-radius: 20px;
      background: var(--panel);
      padding: 22px;
      box-shadow: 0 22px 70px rgba(0,0,0,0.2);
      backdrop-filter: blur(16px);
    }

    .card .number {
      color: var(--gold);
      font-weight: 900;
      font-size: 0.8rem;
      text-transform: uppercase;
    }

    .card h3 {
      margin-top: 18px;
      font-size: 1.5rem;
      line-height: 1.05;
    }

    .card p {
      margin: 14px 0 0;
      color: var(--muted);
    }

    .list-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 12px;
      margin-top: 28px;
      padding: 0;
      list-style: none;
    }

    .list-grid li {
      position: relative;
      min-height: 74px;
      padding: 18px 18px 18px 46px;
      border: 1px solid var(--line);
      border-radius: 18px;
      background: rgba(255,255,255,0.055);
      color: var(--muted);
    }

    .list-grid li::before {
      content: "";
      position: absolute;
      left: 18px;
      top: 25px;
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: var(--cyan);
      box-shadow: 0 0 24px rgba(84,244,208,0.62);
    }

    .program-strip {
      display: grid;
      grid-template-columns: 1fr 1fr 1fr;
      gap: 1px;
      overflow: hidden;
      border: 1px solid var(--line);
      border-radius: 22px;
      background: var(--line);
    }

    .deadline-strip {
      grid-template-columns: repeat(5, minmax(0, 1fr));
    }

    .program-item {
      min-height: 170px;
      padding: 24px;
      background: rgba(255,255,255,0.07);
    }

    .program-item span {
      color: var(--cyan);
      font-size: 0.78rem;
      font-weight: 880;
      text-transform: uppercase;
    }

    .program-item h3 {
      margin-top: 18px;
      font-size: 1.6rem;
    }

    .venue-layout {
      display: grid;
      grid-template-columns: 1fr 1.1fr;
      gap: 26px;
      align-items: stretch;
    }

    .venue-image {
      width: 100%;
      min-height: 360px;
      object-fit: cover;
      border-radius: 24px;
      border: 1px solid var(--line);
      box-shadow: 0 30px 80px rgba(0,0,0,0.34);
    }

    .committee {
      display: grid;
      grid-template-columns: 0.92fr 1.08fr;
      gap: 16px;
    }

    .name-list {
      margin: 18px 0 0;
      padding: 0;
      list-style: none;
      display: grid;
      gap: 10px;
    }

    .name-list li {
      padding: 13px 14px;
      border-radius: 14px;
      background: rgba(255,255,255,0.055);
      color: var(--text);
    }

    .name-list .institution {
      display: block;
      margin-top: 3px;
      color: var(--muted);
      font-size: 0.9rem;
    }

    .contact {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }

    .contact a {
      color: var(--cyan);
      font-weight: 850;
      text-decoration: none;
      overflow-wrap: anywhere;
    }

    .registration-form {
      margin-top: 28px;
      border: 1px solid var(--line);
      border-radius: 24px;
      background:
        linear-gradient(180deg, rgba(84,244,208,0.08), rgba(255,255,255,0.055)),
        rgba(255,255,255,0.055);
      padding: 24px;
      box-shadow: 0 24px 80px rgba(0,0,0,0.24);
      backdrop-filter: blur(16px);
    }

    .form-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 14px;
    }

    .form-field {
      display: grid;
      gap: 7px;
    }

    .form-field.full {
      grid-column: 1 / -1;
    }

    .form-field label,
    .choice-group legend {
      color: var(--text);
      font-size: 0.84rem;
      font-weight: 850;
      text-transform: uppercase;
    }

    .required {
      color: var(--cyan);
    }

    .form-field input,
    .form-field select,
    .form-field textarea {
      width: 100%;
      border: 2px solid rgba(255,255,255,0.28);
      border-radius: 14px;
      background: rgba(7, 9, 13, 0.72);
      color: var(--text);
      padding: 0 14px;
      font: inherit;
      outline: 2px solid transparent;
    }

    .form-field input,
    .form-field select {
      min-height: 52px;
    }

    .form-field textarea {
      min-height: 108px;
      padding-top: 13px;
      resize: vertical;
    }

    .form-field input:focus,
    .form-field select:focus,
    .form-field textarea:focus {
      border-color: rgba(84,244,208,0.78);
      box-shadow: 0 0 0 4px rgba(84,244,208,0.12);
    }

    .form-help {
      margin: 0;
      color: #d2d8e4;
      font-size: 0.9rem;
      line-height: 1.55;
    }

    .form-error-summary {
      display: none;
      grid-column: 1 / -1;
      border: 2px solid var(--gold);
      border-radius: 16px;
      background: rgba(244, 196, 109, 0.12);
      color: var(--text);
      padding: 16px;
    }

    .form-error-summary.is-visible {
      display: block;
    }

    .form-error-summary h3 {
      margin: 0 0 8px;
      font-size: 1.05rem;
    }

    .field-error {
      min-height: 1.35em;
      color: #ffd38a;
      font-size: 0.9rem;
      line-height: 1.45;
    }

    [aria-invalid="true"] {
      border-color: var(--gold) !important;
    }

    .choice-group {
      grid-column: 1 / -1;
      margin: 4px 0 0;
      padding: 0;
      border: 0;
    }

    .choice-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 10px;
      margin-top: 10px;
    }

    .choice {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      min-height: 64px;
      padding: 13px;
      border: 1px solid var(--line);
      border-radius: 14px;
      background: rgba(255,255,255,0.05);
      color: var(--muted);
      cursor: pointer;
    }

    .choice input {
      width: 18px;
      height: 18px;
      margin-top: 2px;
      accent-color: var(--cyan);
    }

    .form-actions {
      display: flex;
      align-items: center;
      gap: 14px;
      flex-wrap: wrap;
      margin-top: 18px;
    }

    .form-status {
      color: var(--muted);
      font-size: 0.95rem;
    }

    .form-note {
      margin: 14px 0 0;
      color: var(--muted);
      font-size: 0.92rem;
      line-height: 1.6;
    }

    .cta-band {
      margin-top: 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      border: 1px solid rgba(84,244,208,0.34);
      border-radius: 22px;
      background: linear-gradient(135deg, rgba(84,244,208,0.14), rgba(169,134,255,0.08));
      padding: 20px;
    }

    .deadline-table,
    .program-table {
      width: 100%;
      margin-top: 22px;
      border-collapse: collapse;
      overflow: hidden;
      border: 1px solid var(--line);
      border-radius: 16px;
    }

    .deadline-table caption,
    .program-table caption {
      text-align: left;
      color: var(--text);
      font-weight: 850;
      margin-bottom: 10px;
    }

    .deadline-table th,
    .deadline-table td,
    .program-table th,
    .program-table td {
      border-bottom: 1px solid var(--line);
      padding: 14px 16px;
      text-align: left;
      vertical-align: top;
    }

    .deadline-table th,
    .program-table th {
      color: var(--cyan);
      background: rgba(255,255,255,0.07);
    }

    .deadline-table tr:last-child th,
    .deadline-table tr:last-child td,
    .program-table tr:last-child th,
    .program-table tr:last-child td {
      border-bottom: 0;
    }

    .paper-fields {
      display: contents;
    }

    .paper-fields[hidden] {
      display: none;
    }

    .cta-band p {
      margin: 0;
      color: var(--text);
      font-weight: 760;
    }

    .faq-list {
      display: grid;
      gap: 12px;
    }

    .faq-list details {
      border: 1px solid var(--line);
      border-radius: 16px;
      background: rgba(255,255,255,0.055);
      padding: 16px;
    }

    .faq-list summary {
      cursor: pointer;
      color: var(--text);
      font-weight: 850;
    }

    .faq-list p {
      margin: 12px 0 0;
      color: var(--muted);
    }

    .partner-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 14px;
    }

    #partners .partner-grid .card {
      text-align: center;
    }

    footer {
      width: min(var(--max), calc(100% - 28px));
      margin: 0 auto;
      padding: 40px 0 56px;
      color: var(--muted);
      border-top: 1px solid rgba(255,255,255,0.1);
      font-size: 0.9rem;
      display: grid;
      gap: 14px;
    }

    .footer-links {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px 18px;
    }

    footer > div:first-child {
      text-align: center;
    }

    .visitor-counter {
      display: inline-flex;
      align-items: center;
      justify-self: center;
      gap: 12px;
      width: fit-content;
      padding: 9px 14px;
      border: 1px solid rgba(122, 247, 222, 0.28);
      border-radius: 999px;
      background: linear-gradient(135deg, rgba(122, 247, 222, 0.11), rgba(184, 166, 255, 0.09));
      color: var(--text);
    }

    .visitor-counter-label {
      color: var(--muted);
      font-size: 0.78rem;
      font-weight: 750;
      letter-spacing: 0.08em;
      text-transform: uppercase;
    }

    .visitor-counter-value {
      color: var(--cyan);
      font-size: 1.05rem;
      font-variant-numeric: tabular-nums;
    }

    .footer-links a {
      color: var(--text);
      opacity: 0.86;
    }

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

    /* Premium visual refinement: calmer contrast, cleaner panels and less neon glare. */
    :root {
      --bg: #05070a;
      --panel: rgba(255, 255, 255, 0.052);
      --text: #fbfcff;
      --muted: #b8c0ce;
      --line: rgba(255, 255, 255, 0.115);
      --cyan: #7af7de;
      --blue: #a7c7ff;
      --violet: #b8a6ff;
      --gold: #f0d28a;
    }

    body::before {
      background:
        radial-gradient(circle at 18% 12%, rgba(122, 247, 222, 0.16), transparent 34%),
        radial-gradient(circle at 82% 8%, rgba(184, 166, 255, 0.12), transparent 30%),
        radial-gradient(circle at 75% 78%, rgba(167, 199, 255, 0.11), transparent 38%),
        linear-gradient(145deg, #05070a 0%, #0b1018 46%, #070911 100%);
    }

    #ai-field {
      opacity: 0.34;
    }

    .grain {
      background-image:
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
      background-size: 96px 96px;
      opacity: 0.58;
    }

    nav {
      background: rgba(5, 7, 10, 0.76);
      border-bottom-color: rgba(255,255,255,0.09);
      box-shadow: 0 18px 46px rgba(0,0,0,0.22);
    }

    .brand {
      letter-spacing: 0.02em;
    }

    .brand-mark {
      border-radius: 8px;
      background: linear-gradient(145deg, rgba(122,247,222,0.18), rgba(255,255,255,0.05));
      box-shadow: inset 0 1px 0 rgba(255,255,255,0.18), 0 18px 44px rgba(0,0,0,0.28);
    }

    .brand-mark::before {
      box-shadow: 0 0 0 6px rgba(122,247,222,0.1), 0 0 18px rgba(122,247,222,0.58);
    }

    .nav-links a,
    .lang-switcher button {
      border-radius: 8px;
      transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
    }

    .nav-links a:hover,
    .lang-switcher button:hover {
      background: rgba(255,255,255,0.065);
      color: var(--text);
    }

    .lang-switcher button.active {
      background: rgba(122,247,222,0.92);
      border-color: rgba(122,247,222,0.92);
      box-shadow: 0 12px 28px rgba(122,247,222,0.16);
    }

    .hero {
      padding-bottom: 78px;
    }

    .eyebrow,
    .section-kicker,
    .section-subtitle,
    .program-item span {
      letter-spacing: 0.075em;
    }

    h1, h2, h3 {
      letter-spacing: -0.035em;
      font-weight: 820;
    }

    .hero-title > span {
      -webkit-text-stroke-color: rgba(251,252,255,0.64);
      text-stroke-color: rgba(251,252,255,0.64);
    }

    .dti-letter {
      color: #8ffbe7;
      text-shadow:
        0 0 16px rgba(122,247,222,0.55),
        0 0 34px rgba(167,199,255,0.22);
    }

    .value-prop {
      font-weight: 720;
    }

    .hero-copy,
    .lead,
    .copy,
    .card p,
    .list-grid li,
    .faq-list p,
    .form-note,
    .form-status {
      color: rgba(232,237,247,0.78);
    }

    .button {
      border-radius: 10px;
      letter-spacing: 0.035em;
      transition: transform 0.22s ease, box-shadow 0.22s ease, background 0.22s ease;
    }

    .button:hover {
      transform: translateY(-1px);
    }

    .button.primary {
      background: linear-gradient(135deg, #9bffee, #eefcff);
      box-shadow: 0 22px 48px rgba(122,247,222,0.14);
    }

    .button.secondary {
      background: rgba(255,255,255,0.045);
      border-color: rgba(255,255,255,0.16);
    }

    .hero-video-card,
    .event-panel,
    .registration-form {
      border-radius: 18px;
      background:
        linear-gradient(180deg, rgba(255,255,255,0.09), rgba(255,255,255,0.038)),
        rgba(8, 12, 18, 0.72);
      border-color: rgba(255,255,255,0.13);
      box-shadow: inset 0 1px 0 rgba(255,255,255,0.08), 0 34px 90px rgba(0,0,0,0.28);
    }

    .event-panel .top {
      border-bottom-color: rgba(255,255,255,0.1);
    }

    .event-panel .date {
      color: #f3d996;
      font-weight: 820;
    }

    .metric {
      border-color: rgba(255,255,255,0.1);
    }

    section {
      padding: 112px 0;
      border-top-color: rgba(255,255,255,0.075);
    }

    .card,
    .list-grid li,
    .program-strip,
    .deadline-table,
    .program-table,
    .faq-list details,
    .choice,
    .name-list li,
    .cta-band {
      border-color: rgba(255,255,255,0.11);
      background: rgba(255,255,255,0.042);
      box-shadow: inset 0 1px 0 rgba(255,255,255,0.055), 0 18px 50px rgba(0,0,0,0.16);
    }

    .card {
      border-radius: 14px;
    }

    .list-grid li,
    .faq-list details,
    .choice,
    .name-list li {
      border-radius: 12px;
    }

    .list-grid li::before {
      background: #9bffee;
      box-shadow: 0 0 16px rgba(122,247,222,0.42);
    }

    .program-strip {
      border-radius: 16px;
      background: rgba(255,255,255,0.09);
    }

    .program-item {
      background: rgba(255,255,255,0.038);
    }

    .venue-image {
      border-radius: 18px;
      border-color: rgba(255,255,255,0.12);
      box-shadow: 0 34px 80px rgba(0,0,0,0.3);
    }

    .registration-form {
      padding: clamp(22px, 3vw, 34px);
    }

    .form-field input,
    .form-field select,
    .form-field textarea {
      border: 1px solid rgba(255,255,255,0.18);
      border-radius: 10px;
      background: rgba(4, 7, 11, 0.72);
      box-shadow: inset 0 1px 0 rgba(255,255,255,0.04);
    }

    .form-field input:focus,
    .form-field select:focus,
    .form-field textarea:focus {
      border-color: rgba(155,255,238,0.78);
      box-shadow: 0 0 0 4px rgba(122,247,222,0.095), inset 0 1px 0 rgba(255,255,255,0.06);
    }

    .form-help {
      color: rgba(232,237,247,0.76);
    }

    .cta-band {
      border-radius: 16px;
      background: linear-gradient(135deg, rgba(122,247,222,0.09), rgba(184,166,255,0.055));
    }

    .deadline-table,
    .program-table {
      border-radius: 12px;
    }

    .deadline-table th,
    .program-table th {
      background: rgba(255,255,255,0.045);
      color: #9bffee;
    }

    .hero-inner {
      align-items: center;
    }

    .hero::after {
      content: "";
      position: absolute;
      left: 50%;
      bottom: 18px;
      width: min(680px, 72vw);
      height: 1px;
      transform: translateX(-50%);
      background: linear-gradient(90deg, transparent, rgba(240,210,138,0.45), rgba(155,255,238,0.35), transparent);
      opacity: 0.75;
      pointer-events: none;
    }

    .hero-title {
      filter: drop-shadow(0 22px 38px rgba(0,0,0,0.28));
    }

    .hero-title > span {
      letter-spacing: -0.055em;
    }

    .value-prop {
      color: rgba(251,252,255,0.92);
      max-width: 820px;
    }

    .hero-actions {
      gap: 14px;
    }

    .button.primary:hover {
      box-shadow: 0 28px 62px rgba(122,247,222,0.2);
    }

    .button.secondary:hover {
      border-color: rgba(240,210,138,0.32);
      background: rgba(255,255,255,0.065);
    }

    .event-panel {
      position: relative;
      overflow: hidden;
    }

    .event-panel::before,
    .registration-form::before,
    .cta-band::before {
      content: "";
      position: absolute;
      inset: 0;
      border-radius: inherit;
      background: linear-gradient(135deg, rgba(255,255,255,0.14), transparent 34%, rgba(122,247,222,0.06));
      pointer-events: none;
      opacity: 0.72;
    }

    .event-panel > *,
    .registration-form > *,
    .cta-band > * {
      position: relative;
      z-index: 1;
    }

    .metric-grid {
      background: linear-gradient(180deg, rgba(255,255,255,0.035), rgba(255,255,255,0.01));
    }

    .metric strong,
    .countdown-unit strong {
      color: rgba(251,252,255,0.95);
      font-weight: 820;
    }

    .countdown-unit span,
    .countdown-caption {
      color: rgba(232,237,247,0.78);
      letter-spacing: 0.055em;
    }

    .section-head {
      align-items: end;
    }

    section:nth-of-type(even) {
      background: linear-gradient(180deg, rgba(255,255,255,0.012), rgba(255,255,255,0));
    }

    .section-kicker {
      color: #f0d28a;
    }

    .card,
    .list-grid li,
    .faq-list details,
    .name-list li,
    .choice {
      transition: transform 0.22s ease, border-color 0.22s ease, background 0.22s ease, box-shadow 0.22s ease;
    }

    .card:hover,
    .list-grid li:hover,
    .faq-list details:hover,
    .name-list li:hover {
      transform: translateY(-2px);
      border-color: rgba(155,255,238,0.22);
      background: rgba(255,255,255,0.058);
      box-shadow: inset 0 1px 0 rgba(255,255,255,0.075), 0 24px 62px rgba(0,0,0,0.2);
    }

    .card .number,
    .program-item span {
      color: #f0d28a;
    }

    .program-item {
      border-right-color: rgba(255,255,255,0.09);
    }

    .program-item strong,
    .deadline-table td:first-child,
    .program-table td:first-child {
      color: rgba(251,252,255,0.94);
    }

    .registration-form,
    .cta-band {
      position: relative;
      overflow: hidden;
    }

    .form-field label,
    .choice-grid legend {
      letter-spacing: 0.035em;
    }

    .choice:has(input:checked) {
      border-color: rgba(155,255,238,0.38);
      background: linear-gradient(135deg, rgba(122,247,222,0.1), rgba(255,255,255,0.045));
      box-shadow: inset 0 1px 0 rgba(255,255,255,0.07), 0 18px 46px rgba(122,247,222,0.08);
    }

    .form-status {
      border-radius: 10px;
    }

    .partner-grid .card,
    .committee .card,
    .contact .card {
      min-height: 100%;
    }

    footer {
      border-top-color: rgba(255,255,255,0.08);
    }

    /* Premium v2: stronger first impression while keeping all page text unchanged. */
    body::before {
      background:
        radial-gradient(circle at 18% 16%, rgba(122, 247, 222, 0.07), transparent 38%),
        radial-gradient(circle at 76% 10%, rgba(240, 210, 138, 0.08), transparent 30%),
        radial-gradient(circle at 88% 72%, rgba(184, 166, 255, 0.12), transparent 38%),
        linear-gradient(145deg, #030508 0%, #0b111a 46%, #060812 100%);
    }

    nav {
      min-height: 78px;
      backdrop-filter: blur(24px) saturate(145%);
      background:
        linear-gradient(180deg, rgba(255,255,255,0.075), rgba(255,255,255,0.025)),
        rgba(3, 5, 8, 0.78);
    }

    .nav-inner {
      min-height: 78px;
    }

    .brand {
      color: #ffffff;
      font-weight: 900;
    }

    .brand:focus,
    .brand:focus-visible {
      outline: 0;
      box-shadow: none;
    }

    .brand-mark {
      border-color: rgba(240,210,138,0.28);
      background:
        radial-gradient(circle at 50% 50%, rgba(122,247,222,0.42), rgba(122,247,222,0.1) 38%, transparent 62%),
        linear-gradient(145deg, rgba(255,255,255,0.12), rgba(255,255,255,0.035));
    }

    .hero {
      isolation: isolate;
    }

    .hero::before {
      content: none;
    }

    .hero-title {
      width: min(100%, 980px);
      max-width: 980px;
      margin-inline: 0;
      text-align: left;
      font-size: clamp(4rem, 8.75vw, 9.25rem);
      line-height: 0.94;
    }

    .hero-title > span {
      display: block;
      width: fit-content;
      color: transparent;
      -webkit-text-stroke: 1.2px rgba(251,252,255,0.64);
      text-stroke: 1.2px rgba(251,252,255,0.64);
      background: none;
      -webkit-background-clip: initial;
      background-clip: initial;
      -webkit-text-fill-color: transparent;
      text-shadow: none;
      margin-inline: 0;
      overflow-wrap: normal;
      word-break: normal;
      transform-origin: left center;
    }

    .hero-title > span:first-child {
      white-space: nowrap;
      transform: none;
    }

    .hero-title > span:nth-child(2) {
      max-width: none;
      letter-spacing: 0.005em;
      transform: none;
    }

    .hero-title > span:last-child {
      max-width: 2ch;
      transform: none;
    }

    .dti-letter {
      background: none;
      -webkit-background-clip: initial;
      background-clip: initial;
      -webkit-text-fill-color: #8ffbe7;
      color: #8ffbe7;
      text-shadow:
        0 0 16px rgba(122,247,222,0.55),
        0 0 34px rgba(167,199,255,0.22);
    }

    .eyebrow::before,
    .section-kicker::before {
      background: linear-gradient(90deg, #f0d28a, #7af7de);
      box-shadow: 0 0 18px rgba(240,210,138,0.26);
    }

    .value-prop {
      font-size: clamp(1.06rem, 1.7vw, 1.32rem);
      line-height: 1.62;
    }

    .hero-copy,
    .lead,
    .copy {
      color: rgba(238,242,249,0.82);
    }

    .button.primary {
      color: #03100d;
      background:
        linear-gradient(135deg, rgba(255,255,255,0.88), rgba(155,255,238,0.92) 44%, rgba(240,210,138,0.82));
      box-shadow:
        inset 0 1px 0 rgba(255,255,255,0.7),
        0 24px 58px rgba(122,247,222,0.18),
        0 8px 28px rgba(240,210,138,0.08);
    }

    .button.secondary {
      color: rgba(251,252,255,0.92);
    }

    .event-panel,
    .registration-form,
    .cta-band {
      border-color: rgba(240,210,138,0.18);
      background:
        linear-gradient(145deg, rgba(255,255,255,0.12), rgba(255,255,255,0.035) 44%, rgba(122,247,222,0.045)),
        rgba(5, 8, 13, 0.78);
      box-shadow:
        inset 0 1px 0 rgba(255,255,255,0.12),
        0 44px 120px rgba(0,0,0,0.38);
      backdrop-filter: blur(18px) saturate(128%);
    }

    .event-panel .date {
      color: #ffe4a3;
      text-shadow: 0 0 22px rgba(240,210,138,0.18);
    }

    .metric {
      padding: 24px 20px;
    }

    .metric strong,
    .countdown-unit strong {
      font-size: 1.15rem;
    }

    .countdown-unit strong {
      color: #ffffff;
    }

    .countdown-unit span,
    .countdown-caption {
      color: #f0d28a;
    }

    section {
      background:
        linear-gradient(180deg, rgba(255,255,255,0.018), rgba(255,255,255,0));
    }

    .section-head h2 {
      max-width: 860px;
    }

    .section-subtitle {
      color: rgba(240,210,138,0.9);
    }

    .card,
    .list-grid li,
    .program-strip,
    .deadline-table,
    .program-table,
    .faq-list details,
    .choice,
    .name-list li {
      border-color: rgba(255,255,255,0.13);
      background:
        linear-gradient(180deg, rgba(255,255,255,0.07), rgba(255,255,255,0.028)),
        rgba(5, 8, 13, 0.58);
    }

    .card {
      border-radius: 10px;
      border-top-color: rgba(240,210,138,0.28);
    }

    .card h3 {
      color: #ffffff;
    }

    .card .number {
      color: #ffe4a3;
    }

    .program-strip {
      border-top-color: rgba(240,210,138,0.22);
    }

    .program-item {
      background: rgba(3, 5, 8, 0.22);
    }

    .venue-image {
      border-color: rgba(240,210,138,0.22);
      filter: saturate(1.06) contrast(1.02);
    }

    .form-field input,
    .form-field select,
    .form-field textarea {
      background: rgba(2, 5, 8, 0.84);
      color: #ffffff;
    }

    .form-field input::placeholder,
    .form-field textarea::placeholder {
      color: rgba(232,237,247,0.52);
    }

    .footer-links a {
      color: rgba(251,252,255,0.9);
    }

    .form-grid {
      column-gap: 16px;
      row-gap: 20px;
      align-items: start;
    }

    .form-field {
      align-content: start;
      grid-template-rows: auto auto minmax(18px, auto);
      min-height: 104px;
    }

    .form-field label {
      min-height: 20px;
      display: inline-flex;
      align-items: center;
    }

    .form-field input,
    .form-field select {
      height: 64px;
      min-height: 64px;
    }

    .field-error {
      min-height: 18px;
      display: block;
    }

    .form-field.full {
      min-height: 0;
    }

    .event-panel .top {
      text-align: center;
    }

    .metric {
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      text-align: center;
    }

    .metric strong,
    .metric span {
      width: 100%;
    }

    .countdown-grid {
      width: 100%;
      max-width: 250px;
      margin: 0 auto;
      justify-items: center;
    }

    .countdown-unit {
      width: 100%;
      text-align: center;
    }

    .metric .countdown-caption {
      width: 100%;
      text-align: center;
    }

    /* Typography polish: clearer reading rhythm without changing wording. */
    .hero-copy,
    .value-prop,
    .lead,
    .copy {
      max-width: 74ch;
    }

    .hero-copy,
    .lead {
      font-size: clamp(1.03rem, 1.25vw, 1.18rem);
      line-height: 1.78;
    }

    [data-i18n="aboutLead"] {
      text-align: justify;
      text-align-last: left;
    }

    [data-i18n="venueLead"] {
      text-align: justify;
      text-align-last: left;
      hyphens: none;
    }

    [data-i18n="registerLead"] {
      text-align: center;
      margin-inline: auto;
    }

    .value-prop {
      line-height: 1.55;
    }

    .hero .value-prop,
    .hero .hero-copy {
      display: block;
      text-align: justify;
      text-align-last: left;
      hyphens: none;
      overflow-wrap: normal;
      word-break: normal;
    }

    .hero .value-prop {
      width: min(100%, 54ch);
      max-width: 54ch;
    }

    .hero .hero-copy {
      width: min(100%, 62ch);
      max-width: 62ch;
      color: rgba(251,252,255,0.92);
      font-weight: 720;
    }

    .section-head {
      gap: clamp(28px, 4vw, 54px);
    }

    .section-head h2 {
      line-height: 1.04;
      letter-spacing: -0.032em;
      text-wrap: balance;
    }

    [data-i18n="aboutTitle"] {
      margin-inline: auto;
      text-align: center;
    }

    .section-kicker,
    .section-subtitle,
    .card .number,
    .form-field label,
    .choice-group legend,
    .deadline-table caption,
    .program-table caption {
      letter-spacing: 0.09em;
    }

    .section-kicker {
      margin-bottom: 14px;
      font-size: 0.76rem;
    }

    .section-subtitle {
      margin: 42px 0 18px;
      font-size: 0.82rem;
    }

    .copy {
      line-height: 1.82;
    }

    .copy p {
      margin-bottom: 20px;
      text-align: justify;
      text-align-last: left;
    }

    .card {
      padding: clamp(22px, 2.3vw, 30px);
    }

    .card h3 {
      margin-top: 16px;
      font-size: clamp(1.18rem, 1.55vw, 1.42rem);
      line-height: 1.16;
      letter-spacing: -0.018em;
      text-wrap: balance;
    }

    .card p {
      margin-top: 16px;
      line-height: 1.72;
      font-size: 0.98rem;
    }

    .pillars .card {
      display: grid;
      grid-template-rows: auto minmax(68px, auto) 1fr;
      align-content: start;
      text-align: left;
      min-height: 318px;
    }

    .pillars .card .number {
      display: inline-flex;
      align-items: center;
      min-height: 22px;
      width: fit-content;
      font-size: 0.78rem;
      line-height: 1.2;
      letter-spacing: 0.095em;
    }

    .pillars .card h3 {
      display: flex;
      align-items: flex-start;
      margin-top: 24px;
      margin-bottom: 0;
      max-width: 13.5ch;
    }

    .pillars .card p {
      margin-top: 18px;
      max-width: 34ch;
      text-align: left;
      line-height: 1.7;
    }

    .list-grid {
      gap: 14px;
    }

    .list-grid li {
      line-height: 1.62;
      padding-top: 20px;
      padding-bottom: 20px;
    }

    .program-item {
      padding: clamp(20px, 2.4vw, 28px);
      text-align: center;
    }

    .program-item h3 {
      margin-top: 10px;
      font-size: clamp(1.08rem, 1.45vw, 1.32rem);
      line-height: 1.16;
      text-wrap: balance;
    }

    .deadline-table caption,
    .program-table caption {
      color: #ffe4a3;
      font-size: 0.82rem;
      text-transform: uppercase;
    }

    .deadline-table th,
    .deadline-table td,
    .program-table th,
    .program-table td {
      padding: 17px 18px;
      line-height: 1.58;
    }

    .deadline-table td:first-child,
    .program-table td:first-child {
      font-weight: 760;
      color: #ffe4a3;
      white-space: nowrap;
    }

    .name-list {
      gap: 12px;
    }

    .name-list li {
      padding: 16px 18px;
      line-height: 1.45;
    }

    .name-list strong {
      display: block;
      font-size: 1rem;
      line-height: 1.4;
      letter-spacing: -0.01em;
    }

    .name-list .institution {
      margin-top: 7px;
      font-size: 0.86rem;
      line-height: 1.45;
    }

    .form-help {
      max-width: 92ch;
      line-height: 1.7;
    }

    #reg-accessibility-help {
      width: 100%;
      max-width: none;
      text-align: justify;
      text-align-last: left;
      hyphens: none;
    }

    .form-field label,
    .choice-group legend {
      font-size: 0.78rem;
      color: rgba(251,252,255,0.92);
    }

    .choice {
      align-items: center;
      line-height: 1.42;
    }

    .choice span {
      color: rgba(238,242,249,0.82);
    }

    .registration-form .choice-grid {
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 14px;
      margin-top: 14px;
    }

    .registration-form .choice-grid.attendance-choice-grid {
      grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .registration-form .choice {
      min-height: 74px;
      padding: 18px 20px;
      align-items: center;
      border-radius: 16px;
      border-color: rgba(255,255,255,0.16);
      background:
        linear-gradient(145deg, rgba(255,255,255,0.075), rgba(255,255,255,0.028)),
        rgba(5, 8, 13, 0.62);
      box-shadow:
        inset 0 1px 0 rgba(255,255,255,0.08),
        0 18px 42px rgba(0,0,0,0.18);
    }

    .registration-form .choice:hover {
      transform: translateY(-1px);
      border-color: rgba(240,210,138,0.34);
      background:
        linear-gradient(145deg, rgba(240,210,138,0.09), rgba(122,247,222,0.045)),
        rgba(5, 8, 13, 0.68);
    }

    .registration-form .choice:has(input:checked) {
      border-color: rgba(122,247,222,0.58);
      background:
        linear-gradient(145deg, rgba(122,247,222,0.16), rgba(240,210,138,0.075)),
        rgba(5, 8, 13, 0.76);
      box-shadow:
        inset 0 1px 0 rgba(255,255,255,0.12),
        0 20px 52px rgba(122,247,222,0.13);
    }

    .registration-form .choice input {
      width: 20px;
      height: 20px;
      margin: 0;
      flex: 0 0 auto;
    }

    .registration-form .choice span {
      color: rgba(251,252,255,0.88);
      font-weight: 650;
      line-height: 1.38;
    }

    .registration-form .form-note {
      width: 100%;
      max-width: none;
      text-align: justify;
      text-align-last: left;
      hyphens: none;
      overflow-wrap: normal;
      word-break: normal;
    }

    .form-actions {
      align-items: center;
      gap: 18px;
    }

    .form-status {
      line-height: 1.55;
    }

    .contact .card a[href^="mailto:"] {
      display: inline-block;
      margin-top: 8px;
      font-size: clamp(1.35rem, 2.5vw, 2rem);
      line-height: 1.15;
      letter-spacing: -0.04em;
    }

    .contact-email-card h3 {
      margin-top: clamp(92px, 7vw, 118px);
    }

    .contact-email-card a[href^="mailto:"] {
      padding: 0;
      background: transparent;
      box-shadow: none;
    }

    footer {
      font-size: 0.86rem;
      line-height: 1.65;
    }

    .footer-links {
      gap: 8px;
    }

    .footer-links a {
      padding: 7px 10px;
      border: 1px solid rgba(255,255,255,0.1);
      border-radius: 9px;
      background: rgba(255,255,255,0.028);
    }

    .footer-links a:hover {
      border-color: rgba(155,255,238,0.28);
      background: rgba(122,247,222,0.055);
    }

    @media (max-width: 1120px) {
      .nav-links a { padding: 0 8px; font-size: 0.7rem; }
      .lang-switcher button { min-width: 44px; min-height: 44px; }
    }

    @media (max-width: 980px) {
      .menu-btn { display: block; }
      .nav-inner { flex-wrap: wrap; }
      .nav-links {
        order: 3;
        width: 100%;
        display: none;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 8px;
        padding: 0 0 14px;
      }
      nav.open .nav-links { display: grid; }
      .nav-links a { justify-content: center; background: rgba(255,255,255,0.055); }
      .lang-switcher { margin-left: auto; }
      .hero-inner,
      .section-head,
      .venue-layout,
      .committee,
      .contact,
      .partner-grid {
        grid-template-columns: 1fr;
      }
      .hero-side {
        width: min(100%, 520px);
      }
      .event-panel { max-width: 520px; }
      .pillars { grid-template-columns: 1fr; }
      .pillars .card {
        min-height: 0;
        grid-template-rows: auto auto auto;
      }
      .pillars .card h3,
      .pillars .card p {
        max-width: none;
      }
      .form-grid,
      .choice-grid {
        grid-template-columns: 1fr;
      }
      /* Typ účasti: na úzkych obrazovkách má každý výber vlastný riadok.
         Zabráni sa tak stlačeniu textu a prekrytiu prepínačov. */
      .registration-form .choice-grid.attendance-choice-grid {
        grid-template-columns: 1fr;
      }
      .contact-email-card h3 {
        margin-top: 34px;
      }
      .cta-band {
        align-items: stretch;
        flex-direction: column;
      }
    }

    @media (max-width: 640px) {
      .nav-inner { min-height: 64px; }
      .brand { font-size: 0.78rem; }
      .lang-switcher {
        order: 4;
        width: 100%;
        justify-content: space-between;
        padding-bottom: 12px;
      }
      .lang-switcher button { flex: 1; }
      .hero { padding-top: 150px; }
      h1 { font-size: clamp(3.05rem, 18vw, 5rem); }
      .hero-title {
        width: 100%;
        text-align: left;
      }
      .hero-title > span {
        transform: none !important;
        width: auto;
      }
      .hero-title > span:nth-child(2) {
        max-width: none;
        letter-spacing: -0.035em;
      }
      .hero .value-prop,
      .hero .hero-copy {
        text-align: left;
      }
      .hero-actions .button { width: 100%; }
      section { padding: 70px 0; }
      .list-grid,
      .program-strip,
      .deadline-strip {
        grid-template-columns: 1fr;
      }
      .metric-grid { grid-template-columns: 1fr; }
      .metric { border-right: 0; }
      .venue-image { min-height: 260px; }
    }

    /* Calm premium pass: lighter rhythm, fewer hard edges, easier scanning. */
    :root {
      --panel: rgba(255, 255, 255, 0.038);
      --line: rgba(255, 255, 255, 0.085);
      --muted: rgba(226, 232, 242, 0.76);
      --soft-panel: rgba(8, 12, 18, 0.56);
      --soft-shadow: 0 18px 58px rgba(0, 0, 0, 0.22);
    }

    body {
      line-height: 1.72;
    }

    body::before {
      background:
        radial-gradient(circle at 18% 16%, rgba(122, 247, 222, 0.055), transparent 38%),
        radial-gradient(circle at 78% 12%, rgba(240, 210, 138, 0.052), transparent 30%),
        radial-gradient(circle at 88% 74%, rgba(184, 166, 255, 0.082), transparent 40%),
        linear-gradient(145deg, #030508 0%, #090e15 48%, #060811 100%);
    }

    #ai-field {
      opacity: 0.24;
    }

    .grain {
      opacity: 0.34;
    }

    nav {
      background: rgba(5, 7, 10, 0.68);
      box-shadow: 0 12px 32px rgba(0,0,0,0.18);
    }

    .brand,
    .nav-links a,
    .lang-switcher button,
    .button,
    .eyebrow,
    .section-kicker,
    .section-subtitle,
    .form-field label,
    .choice-group legend,
    .card .number,
    .program-item span {
      font-weight: 720;
    }

    h1, h2, h3 {
      font-weight: 760;
      letter-spacing: -0.026em;
    }

    h2 {
      font-size: clamp(2.05rem, 4.4vw, 4.5rem);
    }

    .hero {
      padding-bottom: 64px;
    }

    .hero-inner {
      gap: clamp(34px, 5vw, 58px);
    }

    .hero-title {
      filter: drop-shadow(0 16px 30px rgba(0,0,0,0.22));
    }

    .hero-title > span {
      -webkit-text-stroke-color: rgba(251,252,255,0.54);
      text-stroke-color: rgba(251,252,255,0.54);
    }

    .dti-letter {
      text-shadow:
        0 0 12px rgba(122,247,222,0.42),
        0 0 26px rgba(167,199,255,0.16);
    }

    .value-prop,
    .hero .hero-copy {
      font-weight: 620;
    }

    .hero-copy,
    .lead,
    .copy,
    .card p,
    .list-grid li,
    .faq-list p,
    .form-note,
    .form-status,
    .metric span,
    .event-panel .meta {
      color: var(--muted);
    }

    section {
      padding: clamp(72px, 8vw, 96px) 0;
      border-top-color: rgba(255,255,255,0.055);
    }

    .section-head {
      margin-bottom: 28px;
    }

    .section-kicker,
    .section-subtitle,
    .card .number,
    .program-item span {
      letter-spacing: 0.07em;
    }

    .hero-video-card,
    .event-panel,
    .registration-form,
    .cta-band,
    .card,
    .list-grid li,
    .program-strip,
    .deadline-table,
    .program-table,
    .faq-list details,
    .choice,
    .name-list li {
      border-color: var(--line);
      background:
        linear-gradient(180deg, rgba(255,255,255,0.052), rgba(255,255,255,0.02)),
        var(--soft-panel);
      box-shadow: var(--soft-shadow);
    }

    .event-panel,
    .registration-form,
    .hero-video-card {
      box-shadow: inset 0 1px 0 rgba(255,255,255,0.055), var(--soft-shadow);
    }

    .event-panel::before,
    .registration-form::before,
    .cta-band::before {
      opacity: 0.36;
    }

    .card:hover,
    .list-grid li:hover,
    .faq-list details:hover,
    .name-list li:hover {
      transform: translateY(-1px);
      box-shadow: 0 20px 54px rgba(0,0,0,0.2);
    }

    .card {
      border-radius: 12px;
      padding: clamp(20px, 2.1vw, 26px);
    }

    .card h3 {
      font-weight: 740;
    }

    .pillars .card {
      min-height: 286px;
    }

    .program-item {
      min-height: 142px;
    }

    .event-panel .date {
      font-size: 2.05rem;
      font-weight: 760;
      text-shadow: none;
    }

    .metric {
      min-height: 96px;
      padding: 18px 16px;
    }

    .metric strong,
    .countdown-unit strong {
      font-weight: 760;
    }

    .registration-form {
      padding: clamp(20px, 2.5vw, 28px);
    }

    .form-grid {
      row-gap: 14px;
    }

    .form-field {
      min-height: 96px;
    }

    .form-field input,
    .form-field select {
      height: 56px;
      min-height: 56px;
    }

    .form-field textarea {
      min-height: 96px;
    }

    .form-field input,
    .form-field select,
    .form-field textarea {
      background: rgba(4, 7, 11, 0.64);
      border-color: rgba(255,255,255,0.13);
    }

    .registration-form .choice {
      min-height: 62px;
      padding: 14px 16px;
      box-shadow: none;
    }

    .registration-form .choice:hover {
      transform: none;
    }

    .button {
      min-height: 48px;
      border-radius: 9px;
      font-size: 0.78rem;
      box-shadow: none;
    }

    .button.primary {
      box-shadow: 0 14px 34px rgba(122,247,222,0.12);
    }

    .contact .card a[href^="mailto:"] {
      font-weight: 760;
    }

    footer {
      padding-top: 34px;
    }

    /* Calm premium pass v2: visible simplification and lighter page density. */
    body::before {
      background:
        radial-gradient(circle at 18% 18%, rgba(122, 247, 222, 0.035), transparent 34%),
        radial-gradient(circle at 82% 14%, rgba(184, 166, 255, 0.045), transparent 32%),
        linear-gradient(145deg, #05080d 0%, #0b1017 48%, #070a10 100%);
    }

    #ai-field {
      opacity: 0.18;
    }

    .grain {
      opacity: 0.18;
    }

    nav {
      background: rgba(5, 8, 13, 0.58);
      border-bottom-color: rgba(255,255,255,0.055);
      box-shadow: none;
    }

    .hero {
      padding-bottom: 82px;
    }

    .hero-inner {
      gap: clamp(46px, 6vw, 76px);
    }

    .eyebrow,
    .section-kicker,
    .section-subtitle,
    .card .number,
    .program-item span {
      color: rgba(240, 210, 138, 0.86);
      font-weight: 680;
    }

    h2 {
      font-weight: 700;
    }

    .hero .value-prop,
    .hero .hero-copy,
    .lead,
    .copy {
      color: rgba(238,242,249,0.8);
      font-weight: 500;
    }

    section {
      padding: clamp(88px, 9vw, 118px) 0;
      border-top-color: rgba(255,255,255,0.04);
    }

    .section-head {
      margin-bottom: 44px;
    }

    .hero-video-card,
    .event-panel,
    .registration-form,
    .card,
    .list-grid li,
    .program-strip,
    .deadline-table,
    .program-table,
    .faq-list details,
    .choice,
    .name-list li,
    .cta-band {
      background: rgba(255,255,255,0.026);
      border-color: rgba(255,255,255,0.07);
      box-shadow: none;
    }

    .hero-video-card,
    .event-panel,
    .registration-form {
      background:
        linear-gradient(180deg, rgba(255,255,255,0.052), rgba(255,255,255,0.018)),
        rgba(8, 12, 18, 0.48);
      box-shadow: 0 18px 52px rgba(0,0,0,0.18);
    }

    .event-panel::before,
    .registration-form::before,
    .cta-band::before {
      opacity: 0.18;
    }

    .card {
      padding: clamp(24px, 2.6vw, 34px);
    }

    .card:hover,
    .list-grid li:hover,
    .faq-list details:hover,
    .name-list li:hover {
      transform: none;
      box-shadow: none;
      background: rgba(255,255,255,0.038);
    }

    .pillars {
      gap: 20px;
    }

    .pillars .card {
      min-height: 270px;
    }

    .card h3 {
      font-weight: 680;
    }

    .card p,
    .list-grid li,
    .faq-list p {
      color: rgba(226,232,242,0.72);
    }

    .program-strip,
    .deadline-strip {
      gap: 0;
      background: transparent;
    }

    .program-item {
      background: rgba(255,255,255,0.022);
      min-height: 128px;
    }

    .event-panel .date {
      font-size: 1.92rem;
      font-weight: 700;
    }

    .metric {
      min-height: 88px;
      padding: 16px 14px;
      border-color: rgba(255,255,255,0.055);
    }

    .metric strong,
    .countdown-unit strong {
      font-weight: 690;
    }

    .registration-form {
      margin-top: 34px;
      padding: clamp(22px, 3vw, 32px);
    }

    .form-grid {
      gap: 12px 18px;
    }

    .form-field {
      min-height: 88px;
    }

    .form-field input,
    .form-field select {
      height: 52px;
      min-height: 52px;
    }

    .form-field input,
    .form-field select,
    .form-field textarea {
      background: rgba(255,255,255,0.035);
      border-color: rgba(255,255,255,0.11);
    }

    .registration-form .choice {
      min-height: 58px;
      padding: 12px 14px;
      background: rgba(255,255,255,0.03);
      border-color: rgba(255,255,255,0.08);
    }

    .registration-form .choice:has(input:checked) {
      background: rgba(122,247,222,0.075);
      border-color: rgba(122,247,222,0.34);
      box-shadow: none;
    }

    .button.primary {
      box-shadow: none;
    }

    .footer-links a {
      background: transparent;
      border-color: rgba(255,255,255,0.07);
    }

    /* Compact section spacing: removes the oversized empty gap above section titles. */
    section {
      padding: clamp(27px, 3vw, 39px) 0;
    }

    .section-head {
      margin-bottom: 22px;
    }

    /* Compact hero spacing: brings the first screen content closer to the fixed navigation. */
    .hero {
      min-height: auto;
      padding-top: clamp(92px, 8vw, 118px);
      padding-bottom: clamp(34px, 5vw, 58px);
      align-items: start;
    }

    .hero-inner {
      align-items: start;
    }

    .hero-side {
      align-self: start;
      justify-self: end;
      width: min(100%, 380px);
      padding-top: clamp(42px, 4.8vw, 70px);
      gap: clamp(52px, 5.8vw, 78px);
    }

    .hero .value-prop {
      font-weight: 460;
      color: rgba(226, 232, 242, 0.76);
      letter-spacing: 0;
      line-height: 1.72;
      text-align: center;
      text-align-last: center;
      margin-left: auto;
      margin-right: auto;
    }

    .hero .hero-copy {
      font-weight: 460;
      color: rgba(226, 232, 242, 0.76);
      letter-spacing: 0;
      line-height: 1.72;
      text-align: center;
      text-align-last: center;
      margin-left: auto;
      margin-right: auto;
    }

    .hero-actions {
      justify-content: center;
    }

    /* Final paragraph weight pass: make all prominent descriptive texts lighter and consistent. */
    .lead,
    .copy p,
    .form-note,
    .cta-band p {
      font-weight: 460 !important;
      color: rgba(226, 232, 242, 0.76);
    }

    /* Temporary visual assets for speakers, outputs and partners. */
    .visual-card {
      padding: 0;
      overflow: hidden;
      display: flex;
      flex-direction: column;
      min-height: 100%;
    }

    .visual-card .card-body {
      padding: 20px 22px 24px;
      display: grid;
      gap: 10px;
      align-content: start;
      flex: 1;
    }

    .speaker-photo {
      display: block;
      width: 100%;
      aspect-ratio: 1.45 / 1;
      object-fit: cover;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
      background: rgba(255, 255, 255, 0.04);
    }

    .speaker-photo--michal-hanak {
      object-position: center 32%;
    }

    .speaker-photo--jan-michalec {
      object-position: center 38%;
    }

    .partner-logo {
      display: block;
      width: calc(100% - 44px);
      height: 116px;
      object-fit: contain;
      margin: 22px 22px 0;
      padding: 14px;
      border: 1px solid rgba(255, 255, 255, 0.11);
      border-radius: 16px;
      background: rgba(255, 255, 255, 0.035);
    }

    .output-visual-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 16px;
      margin: 22px 0 26px;
    }

    .output-visual {
      position: relative;
      overflow: hidden;
      min-height: 190px;
      padding: 22px;
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: 18px;
      background:
        radial-gradient(circle at 18% 16%, rgba(114, 243, 221, 0.18), transparent 34%),
        linear-gradient(135deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.025));
      box-shadow: 0 22px 50px rgba(0, 0, 0, 0.18);
    }

    .output-visual::before {
      content: "";
      position: absolute;
      right: -26px;
      bottom: -28px;
      width: 150px;
      height: 190px;
      border: 1px solid rgba(255, 255, 255, 0.16);
      border-radius: 18px;
      background:
        linear-gradient(rgba(114, 243, 221, 0.18), rgba(114, 243, 221, 0.02)),
        repeating-linear-gradient(0deg, transparent 0 18px, rgba(255, 255, 255, 0.1) 19px 20px);
      transform: rotate(8deg);
      opacity: 0.7;
    }

    .output-visual::after {
      content: "";
      position: absolute;
      inset: auto 22px 22px auto;
      width: 48px;
      height: 48px;
      border-radius: 16px;
      background: linear-gradient(135deg, rgba(114, 243, 221, 0.9), rgba(255, 227, 161, 0.82));
      opacity: 0.86;
      box-shadow: 0 0 28px rgba(114, 243, 221, 0.24);
    }

    .output-visual > * {
      position: relative;
      z-index: 1;
    }

    .output-visual h3 {
      margin: 16px 0 10px;
    }

    .output-visual p {
      margin: 0;
      color: rgba(226, 232, 242, 0.74);
      font-weight: 460;
      line-height: 1.62;
    }

    @media (max-width: 900px) {
      .output-visual-grid {
        grid-template-columns: 1fr;
      }
    }

    .form-field select,
    .form-field select:focus {
      color: #f4f8ff;
      background-color: #070b12;
    }

    .form-field select option,
    .form-field select optgroup {
      color: #f4f8ff;
      background-color: #070b12;
    }

    .form-field select option:checked {
      color: #071017;
      background-color: #72f3dd;
    }


.animation-toggle {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 10;
  border: 1px solid rgba(246,247,251,.55);
  border-radius: 999px;
  background: #071017;
  color: #f6f7fb;
  padding: 10px 14px;
  font: inherit;
  font-size: .85rem;
  font-weight: 760;
  cursor: pointer;
}
.animation-toggle:hover { background: #132536; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  #ai-field { display: none; }
}


/* Partners and collaborating institutions */
.partners-section { position: relative; background: #050B2D; overflow: hidden; }
.partners-section::before { content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .24; background: radial-gradient(circle at 84% 9%, rgba(138,43,226,.18), transparent 30%), radial-gradient(circle at 8% 66%, rgba(0,229,255,.12), transparent 29%), linear-gradient(90deg, transparent 49.7%, rgba(0,229,255,.08) 50%, transparent 50.3%) center/180px 180px, linear-gradient(0deg, transparent 49.7%, rgba(138,43,226,.07) 50%, transparent 50.3%) center/180px 180px; mask-image: linear-gradient(to bottom, transparent, black 14%, black 86%, transparent); }
.partners-section .partners-head, .partners-section .partners-logo-grid { position: relative; }
.partners-rule { width: 58px; height: 2px; margin-top: 22px; background: linear-gradient(90deg, #00E5FF, #8A2BE2); box-shadow: 0 0 18px rgba(0,229,255,.55); }
.partners-logo-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 13px; }
.partners-logo-card { min-height: 226px; padding: 14px; border: 1px solid rgba(0,191,255,.28); border-radius: 14px; background: linear-gradient(140deg, rgba(16,31,79,.88), rgba(255,255,255,.045)); box-shadow: inset 0 1px 0 rgba(255,255,255,.055), 0 18px 50px rgba(0,0,0,.16); transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease; }
.partners-logo-card:hover { border-color: rgba(0,229,255,.68); transform: translateY(-3px); box-shadow: inset 0 1px 0 rgba(255,255,255,.06), 0 23px 52px rgba(0,191,255,.12); }
.partners-logo-stage { height: 164px; padding: 24px; display: flex; align-items: center; justify-content: center; overflow: hidden; border-radius: 11px; background: linear-gradient(145deg, #fff, #f0f4fb); }
.partners-logo-stage img { display: block; width: auto; height: auto; max-width: 72%; max-height: 72%; object-fit: contain; object-position: center; }
.partners-logo-stage.logo-tall img { max-width: 60%; max-height: 72%; }
.partners-logo-stage.logo-wide img { max-width: 78%; max-height: 62%; }
.partners-logo-stage.logo-extra-wide img { max-width: 82%; max-height: 58%; }
.partners-logo-stage.logo-compact img { max-width: 64%; max-height: 72%; }
.partners-logo-card > span { display: block; margin-top: 11px; color: #d8e3fb; font-size: .78rem; line-height: 1.3; }
@media (max-width: 980px) { .partners-logo-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } .partners-logo-card { min-height: 198px; } .partners-logo-stage { height: 142px; padding: 20px; } }
@media (max-width: 520px) { .partners-logo-grid { grid-template-columns: 1fr; gap: 11px; } .partners-logo-card { min-height: 184px; } .partners-logo-stage { height: 130px; padding: 18px; } }


/* Center the two final technology-partner cards in the 3-column desktop grid. */
@media (min-width: 981px) {
  .partners-logo-card--technology { transform: translateX(50%); }
  .partners-logo-card--technology:hover { transform: translate(50%, -3px); }
}