/* ============================================
   メインスタイルシート
   ============================================ */

/* ============================================
   リセット & ベーススタイル
   ============================================ */
   * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  
  html {
    font-size: 16px;
    overflow-y: scroll;
  }
  
  body {
    font-family: var(--font-family-sans), "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
    color: var(--color-neutral-gray-600);
    background-color: var(--color-neutral-gray-100);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    word-break: break-all;
    overflow-wrap: break-word;
    word-wrap: break-word;
  }
  
  /* ============================================
     認証ページ
     ============================================ */
  .auth-page {
    position: relative;
    min-height: 100vh;
  }
  
  @media (max-width: 768px) {
    .auth-page {
      display: flex;
      flex-direction: column;
      height: auto;
      min-height: 100vh;
      overflow: visible;
    }
  }
  
  /* ============================================
     左側セクション（ブランディング）
     ============================================ */
  .auth-branding {
    position: fixed;
    top: 0;
    left: 0;
    width: 50%;
    height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    background-color: var(--color-neutral-white);
    background-image: url(../img/background.png);
    background-size: cover;
    background-position: center;
    overflow: hidden;
    padding: var(--space-600) 0 0;
    z-index: 1;
  }
  
  @media (max-width: 768px) {
    .auth-branding {
      display: none;
    }
  }
  
  .auth-branding__content {
    display: flex;
    flex-direction: column;
    gap: var(--space-1200);
    align-items: center;
    width: 383px;
    z-index: 1;
    flex-shrink: 0;
    flex: 1;
    justify-content: center;
    margin-top: var(--space-1600);
  }
  
  .auth-branding__logo {
    max-height: 220px;
    max-width: 181px;
    width: auto;
    height: 26vh;
    aspect-ratio: 181 / 220;
    position: relative;
    overflow: hidden;
  }
  
  .auth-branding__logo-image {
    position: absolute;
    width: 100%;
    height: 100%;
    object-fit: contain;
  }
  
  .auth-branding__tagline {
    text-align: center;
    width: 100%;
  }
  
  .company-logo__logo {
    height: 18px;
    width: 161px;
    position: relative;
    overflow: hidden;
    margin-top: var(--space-400);
  }
  
  
  /* ============================================
     右側セクション（認証フォーム）
     ============================================ */
  .auth-form-section {
    margin-left: 50%;
    width: 50%;
    display: flex;
    flex-direction: column;
    gap: var(--space-800);
    align-items: center;
    justify-content: flex-start;
    padding: max(64px, calc((100vh - 560px) / 2)) var(--space-1200) var(--space-1200);
    background-color: var(--color-neutral-gray-100);
    min-height: 100vh;
  }
  
  @media (max-width: 768px) {
    .auth-form-section {
      margin-left: 0;
      width: 100%;
      padding: var(--space-800) var(--space-400) 0;
      min-height: auto;
      height: auto;
      justify-content: flex-start;
    }
  }
  
  @media (max-width: 480px) {
    .auth-form-section {
      padding: var(--space-600) var(--space-400) 0;
    }
  }
  
  .auth-form-section__title {
    max-width: 464px;
    width: 100%;
    text-align: left;
  }
  
  .login-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-600);
    width: 100%;
    max-width: 464px;
  }
  
  .login-form__password-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-400);
    width: 100%;
  }
  
  .login-form__forgot-password {
    display: inline-block;
  }
  
  .login-form .btn, 
  .password-form .btn,
  .password-reset-form .btn,
  .password-success-message .btn {
    margin-top: var(--space-200);
  }
  
  .password-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-600);
    width: 100%;
    max-width: 464px;
  }
  
  .password-form__description {
    margin: 0;
    width: 100%;
  }
  
  .password-form__back {
    border-top: 1px solid var(--color-neutral-gray-200);
    padding-top: var(--space-800);
    width: 100%;
    max-width: 464px;
  }
  
  .password-form__back .btn {
    width: 100%;
  }
  
  .password-reset-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-600);
    width: 100%;
    max-width: 464px;
  }
  
  .password-reset-form__description {
    display: flex;
    flex-direction: column;
    gap: var(--space-100);
    width: 100%;
  }
  
  .password-reset-form__text {
    margin: 0;
    width: 100%;
  }
  
  .password-reset-form__requirements {
    font-family: var(--font-family-sans);
    font-size: var(--typography-body-size-small);
    font-weight: var(--font-weight-regular);
    line-height: var(--line-height-body);
    letter-spacing: var(--letter-spacing-body-small);
    color: var(--color-neutral-gray-600);
    margin: 0;
    padding-left: 21px;
    list-style: disc;
  }
  
  .password-reset-form__requirements li {
    line-height: var(--line-height-body);
  }
  
  .password-success-message {
    display: flex;
    flex-direction: column;
    gap: var(--space-600);
    width: 100%;
    max-width: 464px;
  }
  
  .password-success-message__text {
    font-family: var(--font-family-sans);
    font-size: var(--typography-body-size-medium);
    font-weight: var(--font-weight-regular);
    line-height: var(--line-height-body);
    letter-spacing: var(--letter-spacing-body-medium);
    color: var(--color-neutral-gray-600);
    margin: 0;
    width: 100%;
  }
  
  .password-reset-success-message {
    display: flex;
    flex-direction: column;
    gap: var(--space-600);
    width: 100%;
    max-width: 464px;
  }
  
  .password-reset-success-message__text {
    font-family: var(--font-family-sans);
    font-size: var(--typography-body-size-medium);
    font-weight: var(--font-weight-regular);
    line-height: var(--line-height-body);
    letter-spacing: var(--letter-spacing-body-medium);
    color: var(--color-neutral-gray-600);
    margin: 0;
    width: 100%;
    text-align: left;
  }
  
  /* ============================================
     ユーティリティクラス
     ============================================ */
  .visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
  }
  
  .text-center {
    text-align: center;
  }
  
  /* タイポグラフィ共通クラス */
  .text-body {
    font-family: var(--font-family-sans);
    font-size: var(--typography-body-size-medium);
    font-weight: var(--font-weight-regular);
    line-height: var(--line-height-body);
    letter-spacing: var(--letter-spacing-body-medium);
    color: var(--color-neutral-gray-600);
  }
  
  .text-heading-small {
    font-family: var(--font-family-sans);
    font-size: var(--typography-heading-size-small);
    font-weight: var(--font-weight-regular);
    line-height: var(--line-height-heading);
    letter-spacing: var(--letter-spacing-heading-small);
    color: var(--color-neutral-gray-600);
  }
  
  .text-heading-medium {
    font-family: var(--font-family-sans);
    font-size: var(--typography-heading-size-medium);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-heading);
    letter-spacing: var(--letter-spacing-heading-base);
    color: var(--color-neutral-gray-600);
  }
  
  .text-heading-large {
    font-family: var(--font-family-sans);
    font-size: var(--typography-heading-size-large);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-heading);
    letter-spacing: var(--letter-spacing-heading-base);
    color: var(--color-neutral-gray-600);
  }
  
  /* ============================================
     モバイル専用要素
     ============================================ */
  .mobile-branding,
  .mobile-footer {
    display: none;
  }
  
  @media (max-width: 768px) {
    .mobile-branding {
      display: flex;
    }
  
    .auth-branding__content {
      width: 100%;
      max-width: 383px;
      position: relative;
      top: auto;
      left: auto;
      transform: none;
      margin: 0 auto var(--space-400);
      gap: var(--space-400);
    }
  
    .auth-branding__logo {
      height: 2em;
      width: 100%;
    }
  
    .auth-branding__tagline {
      font-size: var(--typography-body-size-small);
    }
  
    .mobile-footer {
      display: flex;
      margin-top: auto;
      padding-top: var(--space-1600);
    }
  
    .company-logo__logo {
      height: 14px;
      width: 129px;
    }
  }
  
  /* ============================================
     ツール一覧ページ
     ============================================ */
  .main {
    display: flex;
    min-height: calc(100vh - 48px);
    position: relative;
  }
  
  .main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: var(--space-800) var(--space-600) var(--space-2400);
    width: 100%;
    max-width: calc(100vw - 309px);
  }
  
  @media (min-width: 1280px) {
    .main-content {
      padding: var(--space-800) var(--space-1200) var(--space-2400);
    }
  }
  
  .info-header {
    margin-bottom: var(--space-600);
    width: 100%;
  }
  
  .auth-form-section .info-header {
    max-width: 464px;
  }
  
  /* ユーザー設定ページのinfo-header */
  #user-info-header,
  #password-info-header, 
  #mfa-info-header {
    margin-top: var(--space-1200);
    margin-bottom: 0;
  }
  
  .title-header {
    margin-bottom: var(--space-150);
  }
  
  .title-header__title {
    font-family: var(--font-family-sans);
    font-size: var(--typography-heading-size-large);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-heading);
    letter-spacing: var(--letter-spacing-heading-base);
    color: var(--color-neutral-gray-600);
    margin: 0;
  }
  
  /* ツール一覧ページのみにpaddingを適用 */
  .main-content .title-header__title {
    padding: 0 var(--space-800);
  }
  
  .search-result-header {
    display: flex;
    justify-content: flex-end;
    padding-bottom: var(--space-600);
    border-bottom: 1px solid var(--color-neutral-gray-200);
  }
  
  .tool-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, 333px);
    gap: var(--space-800) var(--space-600);
    padding: var(--space-800) var(--space-800) 0;
    justify-content: center;
  }
  
  .tool-grid__empty-message {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--space-1600) 0;
    color: var(--color-neutral-gray-600);
    font-size: var(--typography-body-size-large);
  }
  
  @media (max-width: 960px) {
    .main {
      flex-direction: column;
    }
  
    .main-content {
      padding: var(--space-800) var(--space-400) var(--space-2400);
      max-width: 100%;
    }
  
    .title-header__title {
      font-size: var(--typography-heading-size-medium);
    }
  
    /* ツール一覧ページのみにpaddingを適用 */
    .main-content .title-header__title {
      padding: 0 var(--space-200);
    }
  
    .tool-grid {
      padding: var(--space-800) 0 0;
    }
  }
  
  @media (max-width: 375px) {
    .tool-grid {
      display: flex;
      flex-wrap: wrap
    }
  }
  /* ============================================
     ツール詳細ページ・お気に入りページ
     ============================================ */
  .main-t {
    display: flex;
    flex-direction: column;
    min-height: calc(100vh - 48px);
    position: relative;
  }
  
  .page-content {
    max-width: 1152px;
    width: 100%;
    margin: 0 auto;
    padding: var(--space-1200) var(--space-400) var(--space-2400);
  }
  
  .tool-header {
    margin-bottom: var(--space-800);
  }
  
  .tool-header__head {
    display: flex;
    align-items: flex-start;
    gap: var(--space-600);
    margin-bottom: var(--space-800);
  }
  
  .tool-header__title {
    font-family: var(--font-family-sans);
    font-size: var(--typography-heading-size-large);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-heading);
    letter-spacing: var(--letter-spacing-heading-base);
    color: var(--color-neutral-gray-600);
    margin: 0;
    flex: 1;
    min-width: 0;
  }
  
  .tool-header__actions {
    display: flex;
    align-items: center;
    gap: var(--space-400);
    flex-shrink: 0;
    padding: var(--space-200) 0;
  }
  
  .tool-header__action-icon {
    width: var(--icon-size-medium);
    height: var(--icon-size-medium);
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  .tool-header__action-icon img {
    width: var(--icon-size-medium);
    height: var(--icon-size-medium);
    display: block;
  }
  
  .tool-header__action-button {
    width: var(--icon-size-medium);
    height: var(--icon-size-medium);
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.1s;
  }
  
  .tool-header__favorite:hover img {
    filter: brightness(0) saturate(100%) invert(30%) sepia(95%) saturate(5000%) hue-rotate(320deg) brightness(0.95) contrast(0.9);
  }
  
  .tool-header__action-button:focus-visible {
    outline: 2px solid var(--color-neutral-gray-600);
    outline-offset: 2px;
    border-radius: var(--radius-100);
  }
  
  .tool-header__action-button img {
    width: var(--icon-size-medium);
    height: var(--icon-size-medium);
    display: block;
  }
  
  .tool-header__description {
    font-family: var(--font-family-sans);
    font-size: var(--typography-body-size-medium);
    font-weight: var(--font-weight-regular);
    line-height: var(--line-height-body);
    letter-spacing: var(--letter-spacing-body-medium);
    color: var(--color-neutral-gray-600);
    margin: 0;
  }
  
  .tool-usage {
    margin-bottom: var(--space-1200);
    border-top: 1px solid var(--color-neutral-gray-200);
    border-bottom: 1px solid var(--color-neutral-gray-200);
  }
  
  .tool-usage__container {
    display: flex;
    flex-direction: column;
    gap: var(--space-50);
  }
  
  .tool-usage__toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    background: none;
    border: none;
    padding: var(--space-300) var(--space-400);
    cursor: pointer;
    text-align: left;
    transition: all 0.1s;
    position: relative;
  }
  
  .tool-usage__toggle:hover {
    background-color: var(--color-neutral-gray-200);
  }
  
  .tool-usage__heading {
    font-family: var(--font-family-sans);
    font-size: var(--typography-body-size-medium);
    font-weight: var(--font-weight-regular);
    line-height: var(--line-height-body);
    letter-spacing: var(--letter-spacing-body-medium);
    color: var(--color-neutral-gray-600);
    margin: 0;
  }
  
  .tool-usage__icon {
    width: var(--icon-size-small);
    height: var(--icon-size-small);
    flex-shrink: 0;
    position: absolute;
    right: var(--space-400);
    transition: opacity 0.1s;
  }
  
  .tool-usage__icon--open {
    opacity: 1;
  }
  
  .tool-usage__icon--close {
    opacity: 0;
  }
  
  .tool-usage__toggle[aria-expanded="true"] .tool-usage__icon--open {
    opacity: 0;
  }
  
  .tool-usage__toggle[aria-expanded="true"] .tool-usage__icon--close {
    opacity: 1;
  }
  
  .tool-usage__content {
    display: none;
    padding: 0 var(--space-400) var(--space-300);
  }
  
  .tool-usage__content[aria-hidden="false"] {
    display: block;
  }
  
  .tool-usage__content p {
    font-family: var(--font-family-sans);
    font-size: var(--typography-body-size-medium);
    font-weight: var(--font-weight-regular);
    line-height: var(--line-height-body);
    letter-spacing: var(--letter-spacing-body-medium);
    color: var(--color-neutral-gray-600);
    margin: 0;
  }
  
  .tool-form {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-800);
    background: var(--color-neutral-white);
    padding: var(--space-800) var(--space-1200);
    border-radius: var(--radius-400);
  }
  
  .form-group__required {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 var(--space-200);
    border: 1px solid var(--color-brand-red-700);
    border-radius: var(--radius-100);
    color: var(--color-brand-red-700);
    font-family: var(--font-family-sans);
    font-size: var(--typography-body-size-small);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-body);
    letter-spacing: var(--letter-spacing-body-small);
    height: 24px;
    min-width: 47px;
  }
  
  .form-group__fieldset {
    border: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-200);
  }
  
  .form-input__field--textarea {
    min-height: 163px;
    max-height: 163px;
    resize: vertical;
    padding: var(--space-400);
  }
  
  .form-input__field--select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none'%3E%3Cpath d='M7 10l5 5 5-5' stroke='%231c1a18' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--space-400) center;
    background-size: var(--icon-size-small);
    padding-right: 40px !important;
    cursor: pointer;
  }
  
  @media (max-width: 960px) {
    .page-content {
      padding: var(--space-800) var(--space-400) var(--space-2400);
    }
  
    .tool-header__head {
      gap: var(--space-400);
    }
  
    .tool-header__actions {
      align-self: flex-start;
    }
  
    .tool-header__title {
      font-size: var(--typography-heading-size-medium);
    }
  }
  
  /* ============================================
     ランキングページ
     ============================================ */
  .ranking-header {
    display: flex;
    align-items: center;
    gap: var(--space-0);
  }
  
  .ranking-header__title {
    font-family: var(--font-family-sans);
    font-size: var(--typography-heading-size-large);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-heading);
    letter-spacing: var(--letter-spacing-heading-base);
    color: var(--color-neutral-gray-600);
    margin: 0;
  }
  
  .ranking-header__period {
    font-family: var(--font-family-sans);
    font-size: var(--typography-heading-size-small);
    font-weight: var(--font-weight-regular);
    line-height: var(--line-height-heading);
    letter-spacing: var(--letter-spacing-heading-small);
    color: var(--color-neutral-gray-600);
    margin: 0;
  }
  
  .ranking-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-0);
    padding-top: var(--space-1200);
  }
  
  /* トップ3 */
  .ranking-top3 {
    display: flex;
    flex-direction: column;
    gap: var(--space-0);
    padding: var(--space-400) var(--space-600) 0;
    margin-bottom: var(--space-0);
  }
  
  .ranking-top3__item {
    display: flex;
    gap: var(--space-400);
    align-items: flex-start;
    padding-bottom: var(--space-1200);
  }
  
  .ranking-top3__crown {
    position: relative;
    width: 64px;
    height: 64px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  .ranking-top3__crown-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    z-index: 0;
  }
  
  .ranking-top3__crown-number {
    position: relative;
    z-index: 1;
    font-family: var(--font-family-sans);
    font-size: var(--typography-body-size-large);
    font-weight: var(--font-weight-bold);
    line-height: 1.6;
    letter-spacing: 0.252px;
    color: var(--color-neutral-white);
    text-align: center;
    padding: var(--space-200) 0 0;
  }
  
  .ranking-top3__card-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-200);
    min-width: 0;
    width: 100%;
  }
  
  .ranking-top3__card.card {
    width: 100%;
    min-height: 80px;
  }
  
  .ranking-top3__card .card__content {
    flex-direction: row-reverse;
    align-items: center;
    padding:var(--space-400);
    gap: var(--space-400);
  }
  
  .ranking-top3__card .card__title {
    flex: 1;
  }
  
  .ranking-top3__card .card__bottom-group {
    flex-shrink: 0;
    width: auto;
    justify-content: flex-end;
  }
  
  .ranking-top3__description {
    font-family: var(--font-family-sans);
    font-size: var(--typography-body-size-medium);
    font-weight: var(--font-weight-regular);
    line-height: var(--line-height-body);
    letter-spacing: var(--letter-spacing-body-medium);
    color: var(--color-neutral-gray-600);
    margin: 0;
  }
  
  /* 4位以降 */
  .ranking-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-1200) var(--space-800);
    padding: var(--space-0) var(--space-600);
    width: 100%;
    max-width: 100%;
  }
  
  .ranking-item {
    display: flex;
    gap: var(--space-300);
    align-items: flex-start;
    width: 100%;
    max-width: calc(50% - var(--space-400));
  }
  
  .ranking-item__badge {
    width: 52px;
    height: 52px;
    flex-shrink: 0;
    background-color: var(--color-brand-orange-600);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  .ranking-item__badge-number {
    font-family: var(--font-family-sans);
    font-size: var(--typography-body-size-large);
    font-weight: var(--font-weight-bold);
    line-height: 1.6;
    letter-spacing: 0.252px;
    color: var(--color-neutral-white);
    text-align: center;
    background-color: var(--color-brand-orange-600);
    border-radius: var(--radius-400);
  }
  
  .ranking-item__card-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-100);
    min-width: 0;
    width: 100%;
  }
  
  .ranking-item__card.card {
    width: 100%;
    max-width: 100%;
  }
  
  .ranking-item__description {
    margin: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  
  @media (max-width: 960px) {
    .ranking-header {
      flex-direction: column;
      align-items: flex-start;
      gap: var(--space-0);
    }
  
    .ranking-header__title {
      font-size: var(--typography-heading-size-medium);
    }
  
    .ranking-header__period {
      font-size: var(--typography-body-size-large);
    }
  
    .ranking-top3 {
      padding: var(--space-400) 0 0;
    }
  
    .ranking-top3__item {
      flex-direction: column;
      gap: var(--space-400);
    }
  
    .ranking-top3__crown {
      align-self: flex-start;
      width: 48px;
      height: 48px;
    }
  
    .ranking-grid {
      gap: var(--space-800);
      padding: var(--space-0);
    }
  
    .ranking-item {
      flex-direction: column;
      min-width: 333px;
      max-width: 100%;
    }
  
    .ranking-item__badge {
      align-self: flex-start;
      width: 40px;
      height: 40px;
    }
  }
  
  @media (max-width: 750px) {
    .ranking-item {
      width: 100%;
      min-width: 0;
    }
  }