@use '../abstracts/variables' as *;
@use '../abstracts/color-functions' as *;
@use '../abstracts/mixins' as *;

// -----------------------------------------------------------------------------
// Service Introduction Page Styles
// Figma Design (352:15) - DJBank 개발자포탈 소개
// -----------------------------------------------------------------------------

// =============================================================================
// Variables (signup-guide 등에서 공유)
// =============================================================================
$service-primary-blue: #0049b4;
$service-secondary-blue: #0066dd;
$service-icon-cyan: #00acdd;
$service-icon-blue: #008ae2;
$service-bg: #f9fafb;
$service-text-dark: #1e2939;
$service-text-gray: #4a5565;
$service-card-border: #f3f4f6;
$service-card-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
$service-card-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);

// =============================================================================
// DJBank 개발자포탈 소개 (Figma 352:15 기반)
// =============================================================================

.service-intro {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
  background-color: #fff;
  color: #000;
  font-family: '원신한', 'OneShinhan', 'Spoqa Han Sans Neo', sans-serif;
  display: flex;
  flex-direction: column;
  gap: 20px;

  &__title {
    margin: 0;
    font-size: 25px;
    font-weight: 700;
    line-height: 1.4;
    letter-spacing: -0.01em;
  }

  &__lead {
    margin: 0;
    font-size: 20px;
    font-weight: 700;
    line-height: 1.5;
    letter-spacing: -0.01em;
  }

  &__desc {
    margin: 0;
    font-size: 15px;
    font-weight: 500;
    line-height: 1.7;
  }

  &__spacer {
    height: 10px;
  }

  &__section-title {
    margin: 0;
    font-size: 20px;
    font-weight: 500;
    line-height: 1.5;
  }

  &__section-body {
    font-size: 15px;
    font-weight: 500;
    line-height: 1.7;

    p {
      margin: 0;

      & + p {
        margin-top: 8px;
      }
    }
  }

  &__list {
    margin: 0;
    padding-left: 22px;
    list-style: disc;
    font-size: 15px;
    font-weight: 500;
    line-height: 1.7;

    li + li {
      margin-top: 4px;
    }
  }
}

@media (max-width: 768px) {
  .service-intro {
    padding: 16px;
    gap: 16px;

    &__title { font-size: 22px; }
    &__lead { font-size: 17px; }
    &__section-title { font-size: 17px; }
    &__desc,
    &__section-body,
    &__list { font-size: 14px; }
  }
}


// =============================================================================
// 회원가입 안내 페이지 (Figma 디자인 기반 - New)
// =============================================================================

.signup-guide {
  max-width: 1200px;
  margin: 0 auto;
  padding: 64px 20px 80px;
  background-color: $service-bg;

  // Header Section
  &__header {
    margin-bottom: 64px;
  }

  &__title {
    font-size: 48px;
    font-weight: 700;
    line-height: 1;
    color: $service-primary-blue;
    margin: 0 0 22px 0;
  }

  &__underline {
    width: 96px;
    height: 4px;
    background-color: $service-primary-blue;
    margin-bottom: 36px;
  }

  &__desc {
    p {
      font-size: 20px;
      font-weight: 400;
      line-height: 1.625;
      color: $service-text-dark;
      margin: 0;
    }
  }

  // Step Process Card
  &__card {
    background: #fff;
    border-radius: 16px;
    padding: 48px 50px;
    box-shadow: $service-card-shadow-lg;
    margin-bottom: 64px;
  }

  &__steps {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 16px;
  }

  &__step {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;

    &--last {
      .signup-guide__step-line {
        display: none;
      }
    }
  }

  &__step-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: #fff;
    border: 1.6px solid $service-primary-blue;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 2;

    svg {
      width: 32px;
      height: 32px;
    }
  }

  &__step-dot {
    width: 12px;
    height: 12px;
    background-color: $service-primary-blue;
    border-radius: 50%;
    margin-top: 12px;
    position: relative;
    z-index: 2;
  }

  &__step-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 8px;
    text-align: center;
  }

  &__step-num {
    font-size: 14px;
    font-weight: 400;
    color: #6a7282;
    line-height: 20px;
  }

  &__step-text {
    font-size: 14px;
    font-weight: 700;
    color: $service-text-dark;
    line-height: 20px;
    margin-top: 4px;
    white-space: nowrap;
  }

  &__step-line {
    position: absolute;
    top: 32px;
    left: calc(50% + 32px);
    width: calc(100% - 32px);
    height: 2px;
    background: linear-gradient(to right, $service-primary-blue, rgba(0, 73, 180, 0.3));
    z-index: 1;
  }

  // Notes Section
  &__notes {
    margin-bottom: 48px;
  }

  &__note {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 18px;
    font-weight: 400;
    line-height: 32px;
    color: $service-text-dark;
    margin: 0 0 16px 0;

    &:last-child {
      margin-bottom: 0;
    }
  }

  &__note-mark {
    flex-shrink: 0;
    width: 18px;
  }

  // Action Button
  &__action {
    text-align: center;
    padding-top: 16px;
  }

  &__btn {
    display: inline-block;
    padding: 18px 64px;
    background: $service-primary-blue;
    color: #fff;
    font-size: 18px;
    font-weight: 600;
    border-radius: 8px;
    text-decoration: none;
    transition: background 0.2s ease, transform 0.2s ease;

    &:hover {
      background: darken($service-primary-blue, 10%);
      transform: translateY(-2px);
    }

    &:active {
      transform: translateY(0);
    }
  }
}

// =============================================================================
// Responsive Styles - Signup Guide
// =============================================================================

@media (max-width: 1024px) {
  .signup-guide {
    padding: 48px 24px 64px;

    &__title {
      font-size: 36px;
    }

    &__steps {
      grid-template-columns: repeat(3, 1fr);
      gap: 24px 16px;
    }

    &__step {
      &:nth-child(3) {
        .signup-guide__step-line {
          display: none;
        }
      }
    }

    &__step-line {
      width: calc(100% - 24px);
    }
  }
}

@media (max-width: 768px) {
  .signup-guide {
    padding: 32px 16px 48px;

    &__header {
      margin-bottom: 32px;
    }

    &__title {
      font-size: 28px;
    }

    &__underline {
      width: 64px;
      height: 3px;
      margin-bottom: 24px;
    }

    &__desc {
      p {
        font-size: 16px;
        line-height: 1.75;
      }
    }

    &__card {
      padding: 32px 20px;
      margin-bottom: 32px;
    }

    &__steps {
      grid-template-columns: repeat(2, 1fr);
      gap: 32px 16px;
    }

    &__step {
      &:nth-child(2n) {
        .signup-guide__step-line {
          display: none;
        }
      }
      &:nth-child(3) {
        .signup-guide__step-line {
          display: block;
        }
      }
    }

    &__step-icon {
      width: 56px;
      height: 56px;

      svg {
        width: 28px;
        height: 28px;
      }
    }

    &__step-dot {
      width: 10px;
      height: 10px;
    }

    &__step-text {
      font-size: 13px;
      white-space: normal;
    }

    &__step-line {
      top: 28px;
      left: calc(50% + 28px);
      width: calc(100% - 28px);
    }

    &__notes {
      margin-bottom: 32px;
    }

    &__note {
      font-size: 14px;
      line-height: 24px;
    }

    &__btn {
      padding: 16px 48px;
      font-size: 16px;
      width: 100%;
      max-width: 320px;
    }
  }
}

@media (max-width: 480px) {
  .signup-guide {
    &__steps {
      grid-template-columns: 1fr;
      gap: 24px;
    }

    &__step {
      flex-direction: row;
      align-items: center;
      gap: 16px;

      .signup-guide__step-line {
        display: none !important;
      }
    }

    &__step-icon {
      flex-shrink: 0;
    }

    &__step-dot {
      display: none;
    }

    &__step-label {
      align-items: flex-start;
      margin-top: 0;
      text-align: left;
    }
  }
}

// =============================================================================
// 회원가입 안내 페이지 (Legacy - 기존 클래스 호환성 유지)
// =============================================================================

.service_guide_header {
  padding: 56px 16px 32px;
  text-align: center;
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);

  .service_guide {
    .title {
      font-size: 28px;
      font-weight: 700;
      line-height: 36px;
      letter-spacing: -0.02em;
      color: #140064;
      margin-bottom: 16px;
    }

    .detail {
      font-size: 14px;
      font-weight: 400;
      line-height: 22px;
      color: #495057;
    }
  }
}

.service_guide_image {
  padding: 32px 16px;
  text-align: center;
  background: #fff;

  img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  }
}

.service_guide_info {
  padding: 24px 16px;
  text-align: center;

  .info_text {
    font-size: 14px;
    line-height: 24px;
    color: #212529;
    margin-bottom: 12px;

    strong {
      color: #140064;
      font-weight: 600;
    }
  }

  .info_notice {
    font-size: 13px;
    color: #0049B4;
    font-weight: 500;
  }
}

.service_member_table {
  padding: 16px;

  table {
    width: 100%;
    border-collapse: collapse;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    overflow: hidden;

    th, td {
      padding: 16px;
      font-size: 14px;
      line-height: 22px;
      border-bottom: 1px solid #dee2e6;
    }

    th {
      background: #f8f9fa;
      color: #140064;
      font-weight: 600;
      text-align: center;
      vertical-align: middle;
    }

    td {
      color: #495057;
      text-align: left;
    }

    tr:last-child th,
    tr:last-child td {
      border-bottom: none;
    }
  }
}

.service_guide_notice {
  padding: 16px;
  text-align: center;

  .notice_text {
    font-size: 13px;
    color: #0049B4;
    font-weight: 500;
    line-height: 20px;
  }
}

.service_guide_action {
  padding: 32px 16px 56px;
  text-align: center;

  .btn_register {
    display: inline-block;
    padding: 16px 48px;
    background: #140064;
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    border-radius: 8px;
    text-decoration: none;
    transition: background 0.2s ease;

    &:hover {
      background: #0049B4;
    }
  }
}

// =============================================================================
// PC 반응형 스타일 (Legacy)
// =============================================================================

@media (min-width: 768px) {
  .service_guide_header {
    padding: 80px 32px 48px;

    .service_guide {
      .title {
        font-size: 40px;
        line-height: 48px;
      }

      .detail {
        font-size: 18px;
        line-height: 28px;
      }
    }
  }

  .service_guide_image {
    padding: 48px 32px;

    img {
      max-width: 800px;
    }
  }

  .service_guide_info {
    padding: 32px;

    .info_text {
      font-size: 16px;
      line-height: 28px;
    }

    .info_notice {
      font-size: 14px;
    }
  }

  .service_member_table {
    padding: 32px;
    max-width: 800px;
    margin: 0 auto;

    table {
      th, td {
        padding: 20px 24px;
        font-size: 15px;
      }
    }
  }

  .service_guide_notice {
    padding: 24px 32px;

    .notice_text {
      font-size: 14px;
    }
  }

  .service_guide_action {
    padding: 48px 32px 80px;

    .btn_register {
      padding: 18px 64px;
      font-size: 18px;
    }
  }
}


// =============================================================================
// OAuth2 인증 가이드 (Figma 367:1054 — OAuth2 인증가이드 V2)
// =============================================================================

$oguide-primary:   #0049b4;
$oguide-secondary: #c3dfea;
$oguide-bg-soft:   #EDF9FE;
$oguide-bg-light:  #F8FAFC;
$oguide-text-dark: #1A1A2E;
$oguide-text-gray: #64748B;
$oguide-text-mute: #94A3B8;
$oguide-border:    #E2E8F0;
$oguide-accent-cyan:   #00D4FF;
$oguide-accent-yellow: #FFD93D;
$oguide-accent-green:  #6BCF7F;

.oauth2-guide {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
  background-color: #FFFFFF;
  color: $oguide-text-dark;
  font-family: '원신한', 'OneShinhan', 'Spoqa Han Sans Neo', sans-serif;
  display: flex;
  flex-direction: column;
  gap: 24px;
  box-sizing: border-box;

  // -- common eyebrow / heading -----------------------------------------------
  &__eyebrow {
    display: inline-block;
    font-size: 14px;
    font-weight: 700;
    color: $oguide-primary;
    letter-spacing: 1.2px;
    margin-bottom: 8px;
  }

  &__h2 {
    margin: 0 0 12px;
    font-size: 26px;
    font-weight: 700;
    line-height: 1.3;
    color: $oguide-text-dark;
  }

  // -- Section 1: Hero --------------------------------------------------------
  &__hero {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 32px;
    padding: 60px 80px;
    border-radius: 20px;
    border: 1px solid $oguide-border;
    background: linear-gradient(135deg, $oguide-bg-soft 0%, #FFFFFF 100%);
  }

  &__hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 6px 16px;
    border-radius: 14px;
    background: #FFFFFF;
    border: 1px solid $oguide-secondary;
    color: $oguide-primary;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 20px;
  }

  &__hero-eyebrow-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: $oguide-primary;
  }

  &__hero-title {
    margin: 0 0 16px;
    font-size: 44px;
    font-weight: 800;
    color: $oguide-text-dark;
    letter-spacing: -0.5px;
    line-height: 1.2;
  }

  &__hero-lead {
    margin: 0;
    font-size: 17px;
    font-weight: 500;
    color: $oguide-text-gray;
    line-height: 1.6;

    & + & { margin-top: 2px; }
  }

  &__hero-chips {
    display: flex;
    gap: 12px;
    margin-top: 24px;
    flex-wrap: wrap;
  }

  &__chip {
    display: inline-flex;
    align-items: center;
    padding: 6px 18px;
    border-radius: 15px;
    background: #FFFFFF;
    border: 1px solid $oguide-border;
    font-size: 13px;
    font-weight: 600;
    color: $oguide-text-dark;
  }

  &__hero-illust {
    align-self: center;
    background: #FFFFFF;
    border: 1px solid $oguide-secondary;
    border-radius: 24px;
    overflow: hidden;

    svg {
      display: block;
      width: 100%;
      height: auto;
    }
  }

  // -- Section 2: Definition --------------------------------------------------
  &__definition {
    display: grid;
    grid-template-columns: 220px 1fr;
    border: 1px solid $oguide-border;
    border-radius: 16px;
    background: #FFFFFF;
    overflow: hidden;
  }

  &__definition-icon {
    background: $oguide-bg-light;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;

    svg { width: 120px; height: 80px; }
  }

  &__definition-body {
    padding: 32px 40px;

    .oauth2-guide__eyebrow { margin-bottom: 6px; }

    p {
      margin: 0;
      font-size: 15px;
      font-weight: 500;
      color: $oguide-text-gray;
      line-height: 1.7;

      & + p { margin-top: 2px; }
    }
  }

  // -- Section 3: Core Parties ------------------------------------------------
  &__parties-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  &__party-card {
    display: grid;
    grid-template-columns: 88px 1fr;
    gap: 16px;
    align-items: center;
    padding: 24px 32px;
    background: #FFFFFF;
    border: 1px solid $oguide-border;
    border-radius: 14px;
  }

  &__party-icon svg {
    display: block;
    width: 56px;
    height: 44px;
  }

  &__party-title {
    margin: 0 0 8px;
    font-size: 18px;
    font-weight: 800;
    color: $oguide-text-dark;
  }

  &__party-body p {
    margin: 0;
    font-size: 14px;
    font-weight: 500;
    color: $oguide-text-gray;
    line-height: 1.6;

    & + p { margin-top: 2px; }
  }

  // -- Section 4: Grant Type --------------------------------------------------
  &__grant-sub {
    margin: 0 0 20px;
    font-size: 14px;
    font-weight: 500;
    color: $oguide-text-gray;

    strong {
      color: $oguide-primary;
      font-weight: 700;
    }
  }

  &__grant-card {
    position: relative;
    padding: 24px 32px;
    border-radius: 14px;
    background: linear-gradient(90deg, $oguide-primary 0%, #1f6fd0 100%);
    color: #FFFFFF;
    display: grid;
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "badge endpoint"
      "title endpoint"
      "desc  endpoint";
    column-gap: 32px;
    row-gap: 8px;
    overflow: hidden;

    &::before {
      content: "";
      position: absolute;
      inset: 0 auto 0 0;
      width: 6px;
      background: $oguide-accent-cyan;
    }
  }

  &__grant-badge {
    grid-area: badge;
    align-self: start;
    justify-self: start;
    padding: 5px 14px;
    border-radius: 13px;
    background: #FFFFFF;
    color: $oguide-primary;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.5px;
  }

  &__grant-title {
    grid-area: title;
    margin: 0;
    font-size: 22px;
    font-weight: 800;
    color: #FFFFFF;
    line-height: 1.3;
  }

  &__grant-desc {
    grid-area: desc;
    margin: 0;
    font-size: 14px;
    font-weight: 500;
    color: $oguide-secondary;
    line-height: 1.6;
  }

  &__grant-endpoint {
    grid-area: endpoint;
    align-self: center;
    padding: 14px 18px;
    background: $oguide-text-dark;
    border-radius: 10px;
    min-width: 320px;
    display: flex;
    flex-direction: column;
    gap: 6px;
  }

  &__endpoint-row {
    display: flex;
    align-items: center;
    gap: 12px;
  }

  &__method {
    display: inline-block;
    padding: 3px 12px;
    border-radius: 4px;
    background: $oguide-primary;
    color: #FFFFFF;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.5px;
  }

  &__path {
    font-family: 'Fira Code', monospace;
    font-size: 13px;
    color: #FFFFFF;
  }

  &__endpoint-params {
    font-family: 'Fira Code', monospace;
    font-size: 11px;
    color: $oguide-text-mute;
  }

  // -- Section 5: Sequence Diagram --------------------------------------------
  &__sequence-diagram {
    padding: 16px;
    background: #FFFFFF;
    border: 1px solid $oguide-border;
    border-radius: 14px;

    svg {
      display: block;
      width: 100%;
      height: auto;
    }
  }

  // -- Section 6: Bearer ------------------------------------------------------
  &__bearer-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  &__code-block {
    position: relative;
    margin: 0;
    padding: 28px 24px 28px 32px;
    border-radius: 14px;
    background: $oguide-text-dark;
    color: #FFFFFF;
    font-family: 'Fira Code', monospace;
    font-size: 14px;
    line-height: 1.7;
    overflow-x: auto;

    &::before {
      content: "";
      position: absolute;
      inset: 0 auto 0 0;
      width: 6px;
      background: $oguide-primary;
      border-radius: 14px 0 0 14px;
    }
  }

  &__code-comment {
    display: block;
    color: $oguide-text-mute;
    font-size: 13px;
    margin-bottom: 6px;
  }

  &__code-line {
    display: block;
    color: #FFFFFF;

    &--highlight { color: $oguide-accent-cyan; }
  }

  &__lifecycle {
    padding: 24px 28px;
    background: #FFFFFF;
    border: 1px solid $oguide-border;
    border-radius: 14px;
  }

  &__lifecycle-title {
    margin: 0 0 16px;
    font-size: 14px;
    font-weight: 700;
    color: $oguide-text-dark;
  }

  &__lifecycle-steps {
    list-style: none;
    margin: 0 0 14px;
    padding: 0;
    display: flex;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
  }

  &__lifecycle-step {
    display: flex;
    align-items: center;
    gap: 8px;
    position: relative;

    &:not(:last-child)::after {
      content: "";
      display: inline-block;
      width: 28px;
      height: 0;
      border-top: 1.5px dashed $oguide-text-mute;
      margin-left: 6px;
    }
  }

  &__lifecycle-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: $oguide-primary;
    color: #FFFFFF;
    font-size: 13px;
    font-weight: 700;
  }

  &__lifecycle-step--muted &__lifecycle-num { background: $oguide-text-mute; }
  // ↑ doesn't work in nesting; explicit modifier below:
  &__lifecycle-step--muted .oauth2-guide__lifecycle-num { background: $oguide-text-mute; }
  &__lifecycle-step--muted .oauth2-guide__lifecycle-label { color: $oguide-text-gray; }

  &__lifecycle-label {
    font-size: 13px;
    font-weight: 600;
    color: $oguide-text-dark;
  }

  &__lifecycle-desc {
    margin: 0;
    font-size: 13px;
    color: $oguide-text-gray;
    line-height: 1.6;

    & + & { margin-top: 2px; }
  }

  // -- Section 7: Security ----------------------------------------------------
  &__security-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 20px;
  }

  &__security-card {
    padding: 24px 28px;
    background: #FFFFFF;
    border: 1px solid $oguide-border;
    border-radius: 14px;
  }

  &__security-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 14px;

    svg { width: 28px; height: 28px; }

    &--blue   { background: $oguide-bg-soft; }
    &--yellow { background: #FFF9E6; }
    &--green  { background: #E8F8EE; }
  }

  &__security-title {
    margin: 0 0 8px;
    font-size: 15px;
    font-weight: 700;
    color: $oguide-text-dark;
  }

  &__security-card p {
    margin: 0;
    font-size: 13px;
    font-weight: 500;
    color: $oguide-text-gray;
    line-height: 1.6;

    & + p { margin-top: 2px; }
  }

  // -- Section 8: CTA ---------------------------------------------------------
  &__cta {
    position: relative;
    display: block;
    padding: 36px 48px;
    border-radius: 20px;
    background: linear-gradient(90deg, $oguide-primary 0%, #1f6fd0 100%);
    color: #FFFFFF;
    text-decoration: none;
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;

    &:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 28px rgba(0, 73, 180, 0.25);
    }
  }

  &__cta-body { position: relative; z-index: 1; }

  &__cta-eyebrow {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    color: $oguide-secondary;
    letter-spacing: 1.2px;
    margin-bottom: 12px;
  }

  &__cta-title {
    margin: 0 0 10px;
    font-size: 26px;
    font-weight: 800;
    color: #FFFFFF;
    line-height: 1.3;
  }

  &__cta-desc {
    margin: 0 0 18px;
    font-size: 14px;
    font-weight: 500;
    color: $oguide-secondary;
  }

  &__cta-button {
    display: inline-flex;
    align-items: center;
    padding: 10px 24px;
    border-radius: 19px;
    background: #FFFFFF;
    color: $oguide-primary;
    font-size: 14px;
    font-weight: 700;
  }

  &__cta-deco {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);

    &--lg {
      width: 120px;
      height: 120px;
      right: 80px;
      bottom: 30px;
    }

    &--sm {
      width: 80px;
      height: 80px;
      right: 20px;
      bottom: -10px;
      background: rgba(255, 255, 255, 0.10);
    }
  }
}

@media (max-width: 1024px) {
  .oauth2-guide {
    &__hero {
      grid-template-columns: 1fr;
      padding: 40px;
    }
    &__hero-illust { max-width: 280px; }
    &__definition { grid-template-columns: 1fr; }
    &__definition-icon { padding: 24px; }
    &__bearer-grid,
    &__parties-grid { grid-template-columns: 1fr; }
    &__security-grid { grid-template-columns: 1fr 1fr; }
    &__grant-card {
      grid-template-areas:
        "badge"
        "title"
        "desc"
        "endpoint";
      grid-template-columns: 1fr;
    }
    &__grant-endpoint { min-width: 0; }
  }
}

@media (max-width: 640px) {
  .oauth2-guide {
    padding: 16px;
    gap: 16px;

    &__hero { padding: 28px 24px; }
    &__hero-title { font-size: 32px; }
    &__hero-lead { font-size: 15px; }
    &__h2 { font-size: 22px; }
    &__security-grid { grid-template-columns: 1fr; }
    &__cta { padding: 28px 24px; }
    &__cta-title { font-size: 22px; }
  }
}


// =============================================================================
// OAuth2 2-Legged 구현 가이드 (Figma 367:1564 - OAuth2 2-Legged 가이드 V3)
// =============================================================================

$o2leg-primary:   #0049b4;
$o2leg-secondary: #c3dfea;
$o2leg-bg-soft:   #EDF9FE;
$o2leg-bg-light:  #F8FAFC;
$o2leg-text-dark: #1A1A2E;
$o2leg-text-gray: #64748B;
$o2leg-text-mute: #94A3B8;
$o2leg-border:    #E2E8F0;
$o2leg-cyan:      #00D4FF;
$o2leg-yellow:    #FFD93D;
$o2leg-green:     #6BCF7F;
$o2leg-purple:    #A78BFA;
$o2leg-red:       #FF6B6B;
$o2leg-warn-bg:   #FFF9E6;
$o2leg-warn-fg:   #a07a00;
$o2leg-err-bg:    #FFE9E9;
$o2leg-err-fg:    #a23b3b;

.oauth2-2legged {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
  background-color: #FFFFFF;
  color: $o2leg-text-dark;
  font-family: '원신한', 'OneShinhan', 'Spoqa Han Sans Neo', sans-serif;
  display: flex;
  flex-direction: column;
  gap: 24px;
  box-sizing: border-box;

  // -- common eyebrow / heading -----------------------------------------------
  &__eyebrow {
    display: inline-block;
    font-size: 14px;
    font-weight: 700;
    color: $o2leg-primary;
    letter-spacing: 1.2px;
    margin-bottom: 8px;
  }

  &__h2 {
    margin: 0 0 8px;
    font-size: 26px;
    font-weight: 700;
    line-height: 1.3;
    color: $o2leg-text-dark;
  }

  &__desc {
    margin: 0 0 16px;
    font-size: 14px;
    font-weight: 500;
    color: $o2leg-text-gray;
  }

  // -- Section 1: Hero --------------------------------------------------------
  &__hero {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 32px;
    padding: 48px 80px;
    border-radius: 20px;
    border: 1px solid $o2leg-border;
    background: linear-gradient(135deg, $o2leg-bg-soft 0%, #FFFFFF 100%);
  }

  &__hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 6px 18px;
    border-radius: 14px;
    background: #FFFFFF;
    border: 1px solid $o2leg-secondary;
    color: $o2leg-primary;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 18px;
  }

  &__hero-eyebrow-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: $o2leg-primary;
  }

  &__hero-title {
    margin: 0 0 16px;
    font-size: 36px;
    font-weight: 800;
    color: $o2leg-text-dark;
    letter-spacing: -0.5px;
    line-height: 1.2;
    white-space: nowrap;
  }

  &__hero-lead {
    margin: 0;
    font-size: 16px;
    font-weight: 500;
    color: $o2leg-text-gray;
    line-height: 1.6;

    & + & { margin-top: 2px; }
  }

  &__hero-chips {
    display: flex;
    gap: 12px;
    margin-top: 22px;
    flex-wrap: wrap;
  }

  &__chip {
    display: inline-flex;
    align-items: center;
    padding: 6px 18px;
    border-radius: 15px;
    background: #FFFFFF;
    border: 1px solid $o2leg-border;
    font-size: 13px;
    font-weight: 600;
    color: $o2leg-text-dark;

    &--primary {
      background: $o2leg-primary;
      border-color: $o2leg-primary;
      color: #FFFFFF;
    }
  }

  &__hero-illust {
    align-self: center;
    background: #FFFFFF;
    border: 1px solid $o2leg-secondary;
    border-radius: 20px;
    overflow: hidden;

    svg { display: block; width: 100%; height: auto; }
  }

  // -- Section 2: 사전 준비 ----------------------------------------------------
  &__prereq-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 16px;
  }

  &__prereq-card {
    display: grid;
    grid-template-columns: 44px 1fr;
    gap: 12px;
    align-items: start;
    padding: 24px;
    background: #FFFFFF;
    border: 1px solid $o2leg-border;
    border-radius: 14px;
  }

  &__prereq-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: $o2leg-primary;
    color: #FFFFFF;
    font-size: 16px;
    font-weight: 800;
  }

  &__prereq-title {
    margin: 4px 0 8px;
    font-size: 15px;
    font-weight: 700;
    color: $o2leg-text-dark;
  }

  &__prereq-body p {
    margin: 0;
    font-size: 13px;
    font-weight: 500;
    color: $o2leg-text-gray;
    line-height: 1.6;

    & + p { margin-top: 2px; }
  }

  // -- Section 3: Sequence Diagram --------------------------------------------
  &__sequence-diagram {
    padding: 16px;
    background: #FFFFFF;
    border: 1px solid $o2leg-border;
    border-radius: 14px;

    svg { display: block; width: 100%; height: auto; }
  }

  // -- Step sections (4-6) shared --------------------------------------------
  &__step-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  &__endpoint-box {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 16px;
    padding: 16px 24px;
    margin-bottom: 20px;
    background: #FFFFFF;
    border: 1px solid $o2leg-border;
    border-radius: 12px;
  }

  &__method {
    display: inline-block;
    padding: 5px 14px;
    border-radius: 6px;
    background: $o2leg-primary;
    color: #FFFFFF;
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.5px;
  }

  &__endpoint-path {
    font-family: 'Fira Code', monospace;
    font-size: 16px;
    color: $o2leg-text-dark;
  }

  &__endpoint-content-type {
    display: inline-block;
    padding: 5px 14px;
    border-radius: 14px;
    background: $o2leg-bg-light;
    border: 1px solid $o2leg-border;
    color: $o2leg-text-gray;
    font-size: 11px;
    font-weight: 700;
  }

  // -- panels (tables) --------------------------------------------------------
  &__panel {
    padding: 24px 28px;
    background: #FFFFFF;
    border: 1px solid $o2leg-border;
    border-radius: 12px;
  }

  &__panel-title {
    margin: 0 0 14px;
    font-size: 14px;
    font-weight: 700;
    color: $o2leg-text-dark;
  }

  &__panel-subtitle {
    margin: 20px 0 10px;
    font-size: 13px;
    font-weight: 700;
    color: $o2leg-text-dark;
  }

  &__table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;

    thead {
      background: $o2leg-bg-light;
    }

    th {
      text-align: left;
      padding: 10px 4px;
      font-size: 12px;
      font-weight: 700;
      color: $o2leg-text-gray;
      letter-spacing: 0.4px;
    }

    td {
      padding: 12px 4px;
      border-bottom: 1px solid $o2leg-border;
      color: $o2leg-text-gray;
      vertical-align: middle;
    }

    tbody tr:last-child td { border-bottom: none; }

    code {
      font-family: 'Fira Code', monospace;
      font-size: 13px;
      font-weight: 700;
      color: $o2leg-text-dark;
    }

    &--errors {
      td:first-child { width: 64px; }
      td:nth-child(2) { width: 180px; }
      td:nth-child(3) { width: 280px; }
      td { color: $o2leg-text-gray; }
    }
  }

  &__field-name {
    color: $o2leg-primary !important;
  }

  &__req-badge {
    display: inline-block;
    min-width: 32px;
    padding: 2px 10px;
    border-radius: 9px;
    text-align: center;
    font-size: 10px;
    font-weight: 700;
    color: #FFFFFF;

    &--required { background: $o2leg-primary; }
    &--optional { background: $o2leg-text-mute; }
  }

  &__warning {
    margin: 16px 0 0;
    padding: 6px 14px;
    border-radius: 6px;
    background: $o2leg-warn-bg;
    color: $o2leg-warn-fg;
    font-size: 12px;
    font-weight: 600;
  }

  // -- code panels ------------------------------------------------------------
  &__code-panel {
    position: relative;
    padding: 24px 28px;
    border-radius: 12px;
    background: $o2leg-text-dark;
    overflow: hidden;

    &::before {
      content: "";
      position: absolute;
      inset: 0 auto 0 0;
      width: 6px;
      background: $o2leg-primary;
    }

    &--error::before { background: $o2leg-red; }
  }

  &__code-tag {
    display: inline-block;
    padding: 4px 14px;
    border-radius: 11px;
    background: $o2leg-primary;
    color: #FFFFFF;
    font-size: 11px;
    font-weight: 700;
    margin-bottom: 16px;

    &--ok    { background: $o2leg-primary; }
    &--error { background: $o2leg-red; }
  }

  &__code-block {
    margin: 0;
    color: #FFFFFF;
    font-family: 'Fira Code', monospace;
    font-size: 13px;
    line-height: 1.7;
    white-space: pre;
    overflow-x: auto;
  }

  // syntax color spans (inside <pre>)
  .o2leg-c  { color: $o2leg-cyan; }
  .o2leg-y  { color: $o2leg-yellow; }
  .o2leg-g  { color: $o2leg-green; }
  .o2leg-p  { color: $o2leg-purple; }
  .o2leg-cm { color: $o2leg-text-mute; }

  // -- step 3 header box + tips ----------------------------------------------
  &__header-box {
    padding: 14px 16px;
    border-radius: 8px;
    background: $o2leg-bg-light;
    margin-bottom: 6px;
  }

  &__header-key {
    display: block;
    font-family: 'Fira Code', monospace;
    font-size: 13px;
    font-weight: 700;
    color: $o2leg-primary;
    margin-bottom: 4px;
  }

  &__header-value {
    display: block;
    font-family: 'Fira Code', monospace;
    font-size: 13px;
    color: $o2leg-text-dark;
  }

  &__tips {
    list-style: none;
    margin: 0;
    padding: 0;

    li {
      position: relative;
      padding-left: 18px;
      font-size: 13px;
      font-weight: 500;
      color: $o2leg-text-gray;
      line-height: 1.6;

      &::before {
        content: "";
        position: absolute;
        left: 4px;
        top: 9px;
        width: 6px;
        height: 6px;
        border-radius: 50%;
        background: $o2leg-primary;
      }

      & + li { margin-top: 4px; }
    }
  }

  // -- Section 7: Errors table -----------------------------------------------
  &__status-badge {
    display: inline-block;
    min-width: 40px;
    padding: 2px 12px;
    border-radius: 11px;
    text-align: center;
    font-size: 12px;
    font-weight: 700;

    &--400 { background: $o2leg-err-bg; color: $o2leg-red; }
    &--403 { background: $o2leg-warn-bg; color: $o2leg-warn-fg; }
  }

  // -- Section 8 error note ---------------------------------------------------
  &__error-note {
    margin: 14px 0 0;
    padding: 6px 14px;
    border-radius: 6px;
    background: $o2leg-err-bg;
    color: $o2leg-err-fg;
    font-size: 12px;
    font-weight: 600;
  }

  // -- Section 9: CTA ---------------------------------------------------------
  &__cta {
    position: relative;
    display: block;
    padding: 36px 48px;
    border-radius: 20px;
    background: linear-gradient(90deg, $o2leg-primary 0%, #1f6fd0 100%);
    color: #FFFFFF;
    text-decoration: none;
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;

    &:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 28px rgba(0, 73, 180, 0.25);
    }
  }

  &__cta-body { position: relative; z-index: 1; }

  &__cta-eyebrow {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    color: $o2leg-secondary;
    letter-spacing: 1.2px;
    margin-bottom: 12px;
  }

  &__cta-title {
    margin: 0 0 10px;
    font-size: 26px;
    font-weight: 800;
    color: #FFFFFF;
    line-height: 1.3;
  }

  &__cta-desc {
    margin: 0 0 18px;
    font-size: 14px;
    font-weight: 500;
    color: $o2leg-secondary;
  }

  &__cta-button {
    display: inline-flex;
    align-items: center;
    padding: 10px 24px;
    border-radius: 19px;
    background: #FFFFFF;
    color: $o2leg-primary;
    font-size: 14px;
    font-weight: 700;
  }

  &__cta-deco {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);

    &--lg {
      width: 120px;
      height: 120px;
      right: 80px;
      bottom: 30px;
    }

    &--sm {
      width: 80px;
      height: 80px;
      right: 20px;
      bottom: -10px;
      background: rgba(255, 255, 255, 0.10);
    }
  }
}

@media (max-width: 1024px) {
  .oauth2-2legged {
    &__hero {
      grid-template-columns: 1fr;
      padding: 32px;
    }
    &__hero-illust { max-width: 280px; }
    &__prereq-grid { grid-template-columns: 1fr; }
    &__step-grid { grid-template-columns: 1fr; }
    &__endpoint-box {
      grid-template-columns: 1fr;
      gap: 8px;

      .oauth2-2legged__method,
      .oauth2-2legged__endpoint-content-type { justify-self: start; }
    }
    &__table--errors {
      td:first-child,
      td:nth-child(2),
      td:nth-child(3) { width: auto; }
    }
  }
}

@media (max-width: 640px) {
  .oauth2-2legged {
    padding: 16px;
    gap: 16px;

    &__hero { padding: 28px 24px; }
    &__hero-title { font-size: 28px; }
    &__h2 { font-size: 22px; }
    &__cta { padding: 28px 24px; }
    &__cta-title { font-size: 22px; }
    &__panel { padding: 18px 20px; }
    &__code-panel { padding: 18px 20px; }
  }
}