.start-hero {
  min-height: 180px;
  padding: 58px 48px 44px;
  background:
    linear-gradient(
      rgba(255,255,255,.18),
      rgba(255,255,255,.18)
    ),
    url("/images/start-bg.png");
  background-repeat: no-repeat;
  background-position: center 78%;
  background-size: cover;
}

.start-hero-inner {
  position: relative;
  z-index: 2;
  max-width: 1180px;
  margin: 0 auto;
}

.start-hero h1 {
  font-size: clamp(36px, 4vw, 56px);
  font-weight: 900;
  letter-spacing: -1.6px;
  line-height: 1.16;
  color: #07183f;
  margin: 0;
}

.start-section {
  padding: 24px 48px 80px;
}

.start-wrap {
  max-width: 1180px;
  margin: 0 auto;
}

.role-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.role-card {
  border: 1px solid var(--border);
  border-radius: 26px;
  padding: 34px 32px;
  background: #fff;
  cursor: pointer;
  transition: 0.2s ease;
  text-align: center;
}

.role-card:hover {
  transform: translateY(-4px);
  border-color: #cfe3ff;
  box-shadow: 0 18px 42px rgba(49,130,246,0.11);
}

.role-icon {
  width: 118px;
  height: 118px;
  margin: 0 auto 18px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.role-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.role-card h2 {
  font-size: 27px;
  font-weight: 900;
  margin-bottom: 10px;
}

.role-card p {
  color: var(--gray);
  font-size: 15px;
  line-height: 1.8;
}

.notice-box {
  margin-top: 28px;
  padding: 22px;
  border-radius: 22px;
  background: #f8fbff;
  border: 1px solid #d9e8ff;
  color: var(--gray);
  font-size: 15px;
  line-height: 1.8;
  text-align: center;
}

/* STEP MODAL */
.step-modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: none;
}

.step-modal.show {
  display: block;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(25,31,40,0.42);
  backdrop-filter: blur(4px);
}

.step-box {
  position: relative;
  z-index: 2;
  width: calc(100% - 40px);
  max-width: 560px;
  max-height: calc(100vh - 60px);
  overflow-y: auto;
  margin: 0 auto;
  top: 50%;
  transform: translateY(-50%);
  background: #fff;
  border-radius: 28px;
  padding: 30px;
  box-shadow: 0 24px 60px rgba(15,23,42,0.18);
}

.close-btn {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 38px;
  height: 38px;
  border: none;
  border-radius: 999px;
  background: #f2f4f6;
  font-size: 24px;
  cursor: pointer;
}

.step-top {
  margin-bottom: 26px;
  padding-right: 42px;
}

.step-count {
  display: inline-flex;
  padding: 6px 11px;
  border-radius: 999px;
  background: var(--blue-light);
  color: var(--blue-dark);
  font-size: 13px;
  font-weight: 900;
  margin-bottom: 12px;
}

.step-title {
  font-size: 27px;
  font-weight: 900;
  line-height: 1.35;
  letter-spacing: -0.8px;
  margin-bottom: 8px;
}

.step-desc {
  font-size: 15px;
  color: var(--gray);
  line-height: 1.75;
}

.step-panel {
  display: none;
}

.step-panel.active {
  display: block;
}

.option-grid {
  display: grid;
  gap: 12px;
}

.option-btn {
  width: 100%;
  min-height: 58px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: #fff;
  padding: 0 18px;
  font-family: inherit;
  font-size: 16px;
  font-weight: 800;
  text-align: left;
  cursor: pointer;
  transition: 0.16s ease;
}

.option-btn:hover,
.option-btn.active {
  border-color: var(--blue);
  background: #f8fbff;
  color: var(--blue-dark);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.form-group label {
  font-size: 14px;
  font-weight: 800;
  color: var(--black);
}

.form-group input,
.form-group textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 15px 16px;
  font-family: inherit;
  font-size: 15px;
  background: #fff;
  outline: none;
}

.form-group textarea {
  min-height: 100px;
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--blue);
}

.seller-only {
  display: none;
}

body.seller-mode .seller-only {
  display: flex;
}

.holder-group {
  display: none;
}

.holder-group.show {
  display: flex;
}

.verify-btn {
  width: 100%;
  min-height: 56px;
  margin-top: 4px;
}

.verify-btn.success {
  background: #16c784;
  border-color: #16c784;
  color: #fff;
}

.verify-btn.fail {
  background: #ff4d4f;
  border-color: #ff4d4f;
  color: #fff;
}

.verify-message {
  display: none;
  margin-top: 12px;
  padding: 16px;
  border-radius: 16px;
  font-size: 14px;
  font-weight: 800;
  line-height: 1.7;
}

.verify-message.fail {
  display: block;
  background: #fff1f0;
  border: 1px solid #ffccc7;
  color: #cf1322;
}

.change-account-btn {
  display: none;
  width: 100%;
  margin-top: 10px;
  border: none;
  background: transparent;
  color: var(--gray);
  font-family: inherit;
  font-size: 14px;
  font-weight: 800;
  cursor: pointer;
  text-decoration: underline;
}

.change-account-btn.show {
  display: block;
}

.file-note {
  padding: 16px;
  border-radius: 16px;
  background: #f8fafc;
  border: 1px solid var(--border);
  font-size: 14px;
  color: var(--gray);
  line-height: 1.75;
  margin-bottom: 16px;
}

.step-actions {
  display: flex;
  gap: 10px;
  margin-top: 26px;
}

.btn-primary,
.btn-light {
  flex: 1;
  min-height: 56px;
  border-radius: 16px;
  font-family: inherit;
  font-size: 16px;
  font-weight: 900;
  cursor: pointer;
}

.btn-primary {
  border: none;
  background: var(--blue);
  color: #fff;
  box-shadow: 0 10px 24px rgba(49,130,246,0.22);
}

.btn-primary:hover {
  background: var(--blue-dark);
}

.btn-light {
  border: 1px solid var(--border);
  background: #fff;
  color: var(--black);
}

.complete-box {
  text-align: center;
  padding: 12px 4px 4px;
}

.complete-icon {
  font-size: 48px;
  margin-bottom: 18px;
}

.complete-box h3 {
  font-size: 28px;
  font-weight: 900;
  margin-bottom: 12px;
}

.complete-box p {
  font-size: 15px;
  color: var(--gray);
  line-height: 1.8;
}

.input-error {
  border-color: #ff4d4f !important;
  background: #fffafa !important;
}

.field-error {
  margin-top: 6px;
  color: #cf1322;
  font-size: 13px;
  font-weight: 800;
  line-height: 1.5;
}

@media (max-width: 768px) {
  .start-hero {
    min-height: 150px;
    padding: 46px 20px 34px;
  }

  .start-hero h1 {
    font-size: 42px;
  }

  .start-section {
    padding: 20px 20px 64px;
  }

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

  .step-box {
    width: calc(100% - 32px);
    padding: 26px 20px;
    border-radius: 24px;
  }

  .step-actions {
    flex-direction: column;
  }
}

@media (max-width: 430px) {
  .start-hero {
    min-height: 125px;
    padding: 38px 18px 28px;
  }

  .start-hero h1 {
    font-size: 34px;
    letter-spacing: -1.2px;
  }

  .start-section {
    padding: 16px 16px 58px;
  }

  .role-card {
    padding: 26px 22px;
    border-radius: 22px;
  }

  .role-icon {
    width: 98px;
    height: 98px;
    margin-bottom: 14px;
  }

  .role-card h2 {
    font-size: 23px;
  }

  .role-card p {
    font-size: 14px;
  }

  .notice-box {
    margin-top: 20px;
    padding: 18px;
    border-radius: 18px;
    font-size: 13.5px;
  }

  .step-box {
    width: calc(100% - 24px);
    max-height: calc(100vh - 36px);
    padding: 24px 18px;
  }

  .step-title {
    font-size: 24px;
  }

  .step-desc {
    font-size: 14px;
  }

  .option-btn {
    min-height: 54px;
    font-size: 15px;
  }

  .form-group input,
  .form-group textarea {
    padding: 14px;
    font-size: 14px;
  }
}