.join-grid {
      display: grid;
      grid-template-columns: minmax(0, 1fr);
      gap: var(--space-lg);
      max-width: 760px;
      margin: 0 auto;
    }
    .join-card {
      background: var(--surface-1);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-card);
      padding: clamp(1.5rem, 3vw, var(--space-2xl));
      display: flex;
      flex-direction: column;
      position: relative;
      overflow: hidden;
      transition: border-color 250ms ease, box-shadow 250ms ease, transform 250ms ease;
      min-height: 100%;
    }
    .join-card::before {
      content: '';
      position: absolute;
      inset: 0 0 auto 0;
      height: 4px;
      background: linear-gradient(90deg, var(--green-dark), var(--green));
      transform: scaleX(0);
      transform-origin: left;
      transition: transform 250ms ease;
    }
    .join-card:hover {
      border-color: var(--border-light);
      box-shadow: var(--shadow-card-hover);
      transform: translateY(-8px);
    }
    .join-card:hover::before {
      transform: scaleX(1);
    }
    .join-card--featured {
      background: linear-gradient(160deg, var(--green-dark) 0%, var(--green-deep) 100%);
      border-color: var(--green-mid);
      border-top: 4px solid var(--green);
    }
    .join-card--featured::before {
      display: none;
    }
    .join-card--featured:hover {
      box-shadow: 0 10px 35px rgba(11, 61, 46, 0.35);
      border-color: var(--green);
    }
    .join-card__tag {
      font-family: var(--font-mono);
      font-size: 0.63rem;
      color: var(--green-dark);
      letter-spacing: var(--tracking-widest);
      text-transform: uppercase;
      margin-bottom: var(--space-md);
      line-height: 1.3;
    }
    .join-card--featured .join-card__tag {
      color: var(--green-bright);
    }
    .join-card__title {
      font-family: var(--font-display);
      font-size: clamp(1.35rem, 2vw, 2rem);
      font-weight: var(--weight-semi);
      color: var(--chalk);
      line-height: var(--leading-head);
      padding-bottom: var(--space-md);
      margin-bottom: var(--space-md);
      border-bottom: 1px solid var(--border);
    }
    .join-card--featured .join-card__title {
      color: var(--white);
      border-bottom-color: rgba(255, 255, 255, 0.15);
    }
    .join-card__desc {
      font-family: var(--font-ui);
      font-size: var(--text-body);
      color: var(--fog);
      line-height: 1.75;
      margin: 0 0 var(--space-lg) 0;
    }
    .join-card--featured .join-card__desc {
      color: rgba(240, 237, 232, 0.88);
    }
    .reg-form-wrap {
      width: 100%;
      display: flex;
      justify-content: center;
    }
    .reg-form {
      width: 100%;
      max-width: 920px;
      background: var(--surface-1);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-card);
      padding: 1.5rem;
    }
    .reg-form__title-label {
      font-family: var(--font-mono);
      font-size: var(--text-small);
      color: var(--green);
      letter-spacing: var(--tracking-wide);
      text-transform: uppercase;
      margin-bottom: 0.75rem;
      display: block;
    }
    .reg-form__title {
      font-family: var(--font-display);
      font-size: clamp(1.55rem, 2.5vw, 2.4rem);
      font-weight: var(--weight-semi);
      color: var(--chalk);
      line-height: var(--leading-head);
      margin: 0 0 1.5rem 0;
    }
    .reg-form__section {
      margin-bottom: 1.75rem;
      padding: 1.25rem;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      background: rgba(255, 255, 255, 0.02);
    }
    .reg-form__section:last-of-type {
      margin-bottom: 0;
    }
    .reg-form__section-title {
      font-family: var(--font-display);
      font-size: 1.08rem;
      font-weight: var(--weight-semi);
      color: var(--chalk);
      margin: 0 0 0.9rem 0;
      padding-bottom: 0.9rem;
      border-bottom: 1px solid var(--border);
    }
    .reg-form__section-note {
      font-family: var(--font-ui);
      font-size: 0.92rem;
      color: var(--fog);
      line-height: 1.6;
      margin: 0 0 1.35rem 0;
    }
    .reg-form__grid,
    .reg-form__grid--2 {
      display: grid;
      grid-template-columns: 1fr;
      gap: 1.5rem;
    }
    .reg-form__group {
      display: flex;
      flex-direction: column;
      gap: 0.55rem;
      min-width: 0;
    }
    .reg-form__group--checkbox {
      justify-content: flex-end;
    }
    .reg-form__checkbox {
      display: inline-flex;
      align-items: center;
      gap: 0.55rem;
      color: var(--chalk);
      font-size: 0.95rem;
      min-height: 56px;
      cursor: pointer;
    }
    .reg-form__checkbox input {
      width: 18px;
      height: 18px;
      accent-color: var(--green);
    }
    .reg-form__label {
      font-family: var(--font-ui);
      font-size: 0.78rem;
      font-weight: var(--weight-med);
      color: var(--silver);
      letter-spacing: 0.03em;
      text-transform: uppercase;
      line-height: 1.2;
      margin: 0;
    }
    .field-req,
    .reg-form__label [aria-hidden="true"] {
      color: var(--green);
      margin-left: 0.15rem;
      font-weight: 600;
    }
    .reg-consent.is-invalid,
    #reg-consent-field.is-invalid {
      outline: 1px solid #e05252;
      outline-offset: 4px;
      border-radius: var(--radius-md);
    }
    .reg-form__input {
      appearance: none;
      -webkit-appearance: none;
      background: var(--surface-2, rgba(255, 255, 255, 0.05));
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      color: var(--chalk);
      font-family: var(--font-ui);
      font-size: 1rem;
      line-height: 1.4;
      padding: 1rem 1rem;
      min-height: 56px;
      width: 100%;
      box-sizing: border-box;
      outline: none;
      transition: border-color 200ms ease, box-shadow 200ms ease, background 200ms ease;
    }
    .reg-form__input::placeholder {
      color: var(--fog);
      opacity: 0.6;
    }
    .reg-form__input:focus {
      border-color: var(--green);
      box-shadow: 0 0 0 3px rgba(34, 139, 68, 0.18);
    }
    .reg-form__input.invalid {
      border-color: #e05252;
      box-shadow: 0 0 0 3px rgba(224, 82, 82, 0.15);
    }
    select.reg-form__input {
      background-image:
        linear-gradient(45deg, transparent 50%, var(--fog) 50%),
        linear-gradient(135deg, var(--fog) 50%, transparent 50%);
      background-position:
        calc(100% - 18px) calc(50% - 3px),
        calc(100% - 12px) calc(50% - 3px);
      background-size: 6px 6px, 6px 6px;
      background-repeat: no-repeat;
      padding-right: 2.75rem;
    }
    .reg-form__message {
      font-family: var(--font-ui);
      font-size: var(--text-small);
      border-radius: var(--radius-md);
      padding: 0.9rem 1rem;
      display: none;
      margin-top: 1rem;
    }
    .reg-form__message.success {
      display: block;
      background: rgba(34, 139, 68, 0.12);
      border: 1px solid var(--green);
      color: var(--green-bright, #4ade80);
    }
    .reg-form__message.error {
      display: block;
      background: rgba(224, 82, 82, 0.1);
      border: 1px solid #e05252;
      color: #f87171;
    }
    .reg-form__submit {
      width: 100%;
      margin-top: 1.25rem;
    }
    .reg-form__submit:disabled {
      opacity: 0.6;
      cursor: not-allowed;
    }
    .password-wrap {
      position: relative;
      width: 100%;
    }
    .password-wrap .reg-form__input {
      padding-right: 5rem;
    }
    .password-toggle {
      position: absolute;
      top: 50%;
      right: 0.9rem;
      transform: translateY(-50%);
      background: none;
      border: none;
      color: var(--green);
      font-family: var(--font-ui);
      font-size: 0.82rem;
      font-weight: var(--weight-med);
      cursor: pointer;
      padding: 0;
      line-height: 1;
    }
    .password-toggle:hover {
      color: var(--green-bright);
    }
    .password-toggle:focus-visible {
      outline: 2px solid var(--green);
      outline-offset: 3px;
      border-radius: 4px;
    }
    .reg-consent {
      margin-top: 1rem;
      padding-top: 0.25rem;
    }
    .reg-consent__label {
      display: flex;
      align-items: flex-start;
      gap: 0.75rem;
      font-size: 0.84rem;
      color: var(--fog);
      line-height: 1.55;
    }
    .reg-consent__label input[type="checkbox"] {
      appearance: auto;
      -webkit-appearance: checkbox;
      width: 16px;
      height: 16px;
      min-width: 16px;
      margin-top: 2px;
      cursor: pointer;
    }
    .reg-consent__text a {
      color: var(--green-bright);
      text-decoration: underline;
    }
    .reg-consent__note {
      font-size: 0.75rem;
      color: var(--fog);
      margin: 0.65rem 0 0;
      line-height: 1.5;
    }
    @media (min-width: 700px) {
      .reg-form {
        padding: 2rem;
      }
      .reg-form__section {
        padding: 1.75rem;
      }
      .reg-form__grid--2 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        column-gap: 2rem;
        row-gap: 1.75rem;
      }
    }
    @media (max-width: 799px) {
      .join-card {
        padding: 1.5rem;
      }
    }
    @media (max-width: 480px) {
      .reg-form {
        padding: 1rem;
      }
      .reg-form__section {
        padding: 1rem;
      }
      .reg-form__title {
        font-size: 1.45rem;
      }
      .reg-form__input {
        font-size: 16px;
        min-height: 52px;
      }
      .join-card__title {
        font-size: 1.25rem;
      }
      .join-card__desc {
        line-height: 1.6;
      }
      .reg-form__section-note {
        font-size: 0.85rem;
      }
      .reg-form__grid,
      .reg-form__grid--2 {
        gap: 1.25rem;
      }
    }