/* ============================================================
   04. INTRO CONTENT & AUTHOR — About, Info и Author

   ОГЛАВЛЕНИЕ
   4.1    Intro: reduced motion
   4.2    Общая типографика и заголовки Intro
   4.3    Карточка About: текст и смысловые блоки
   4.4    Карточка About: footer и компактный режим
   4.5    Info: заголовок, выделения и ссылки
   4.6    Author: профиль, институт и логотип
   4.7    Author: нижние действия и контактный popover
   4.8    Intro footer dividers и метаданные автора
   4.9    Крупные экраны: глобальное увеличение шрифта
   4.10   Author actions: index-tab controls и состояния
   4.11   Author: адаптивная типографика до 2000 px

   Порядок подключения: 4 / 10
   ============================================================ */

/* ============================================================
   4.1. Intro: reduced motion
   ============================================================ */





@media (prefers-reduced-motion: reduce) {
  .about-block,
  .criteria-block,
  .info-block
   {
    transition: none
  }
}

/* ============================================================
   4.2. Общая типографика и заголовки Intro
   ============================================================ */





.intro-section h2 {
  margin: 0 0 0.65rem;
  padding-bottom: 0.4rem;

  font-size: 1.5rem;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;

  color: #4a3e3d;

  border-bottom: 2px solid rgba(97, 60, 36, 0.25);
}

.intro-section h3 {
  margin: 0 0 0.5rem;

  font-size: 1.2rem;
  line-height: 1.3;
  letter-spacing: -0.02em;

  color: #4a3e3d;
}

/* ============================================================
   4.3. Карточка About: текст и смысловые блоки
   ============================================================ */





.about-section {
  display: flex;
  flex: 1 1 auto;
  flex-direction: column;

  width: 100%;
  min-height: 0;
}


.about-section > p {
  position: relative;
  display: block;
  align-self: flex-start;

  
  width: calc(100% - clamp(0.5rem, 0.9vw, 1.4rem));

  margin: 0;

  
  padding:
    clamp(0.58rem, 1.1vh, 0.85rem)
    clamp(0.65rem, 0.8vw, 1rem)
    clamp(0.58rem, 1.1vh, 0.85rem)
    clamp(7.8rem, 9vw, 10rem);

  font-size: 1rem;
  line-height: 1.55;

  color: #4a4641;

  border-radius: 6px;
}

.about-section > p + p {
  border-top: 0;
}


.about-section > p::before {
  position: absolute;
  top: clamp(0.58rem, 1.1vh, 0.85rem);
  left: 0.7rem;

  display: block;
  width: 6.4rem;

  padding-top: 0.15em;

  font-size: 0.76rem;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.about-section > p:nth-of-type(1) {
  background-color: rgba(142, 127, 113, 0.065);
}

.about-section > p:nth-of-type(1)::before {
  content: "Purpose";
  color: #7d6e61;
}

.about-section > p:nth-of-type(2) {
  background-color: rgba(73, 103, 120, 0.055);
}

.about-section > p:nth-of-type(2)::before {
  content: "Classification";
  color: #496878;
}

.about-section > p:nth-of-type(3) {
  background-color: rgba(74, 107, 83, 0.06);
}
.about-section > p:nth-of-type(3)::before {
  content: "Methodology";
  color: #4a6b53;
}

.about-section > p strong {
  padding: 0;

  font-weight: 650;
  letter-spacing: -0.005em;

  background: none;

  -webkit-box-decoration-break: initial;
  box-decoration-break: initial;
}


.about-section > p:nth-of-type(1) strong {
  color: #6f6054;
}


.about-section > p:nth-of-type(2) strong {
  color: #3f6070;
}


.about-section > p:nth-of-type(3) strong {
  color: #3f624a;
}

.about-section .about-cursive {
  font-style: italic;
  letter-spacing: 0.02em;
}

/* ============================================================
   4.4. Карточка About: footer и компактный режим
   ============================================================ */





.about-footer {
  display: flex;
  flex: 0 0 auto;
  flex-direction: column;
  align-items: center;
  justify-content: center;

  
  row-gap:
    clamp(0.7rem, 1.1dvh, 1.05rem);

  margin-top: auto;

  padding:
    clamp(0.72rem, 1.25dvh, 0.95rem)
    0.3rem
    clamp(0.3rem, 0.55dvh, 0.45rem);

  text-align: center;
}



.about-footer .suggestions-text {
  margin: 0;

  font-size: 1.16rem;
  font-style: italic;
  font-weight: 400;
  line-height: 1.25;
  text-align: center;

  color: #625c56;
}


.about-footer .suggestions-trigger {
  padding-inline: 0.08em;

  font-weight: 700;

  color: #3f624a !important;

  text-decoration-line: underline;
  text-decoration-color: rgba(63, 98, 74, 0.45);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.16em;

  border-radius: 3px;

  cursor: pointer;

  transition:
    color 0.2s ease,
    background-color 0.2s ease,
    text-decoration-color 0.2s ease;
}

.about-footer .suggestions-trigger:hover {
  color: #2f543b !important;
  background-color: rgba(74, 107, 83, 0.07);
  text-decoration-color: #2f543b;
}


.about-footer .enjoy-text {
  margin: 0;
  padding: 0;

  font-size: 1.5rem;
  font-style: italic;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.02em;
  text-align: center;

  color: #3b5340 !important;
}





@media screen and (max-width: 1099px) {
.about-section {
    gap: 0.45rem;
  }

  .about-section > p {
    width: 100%;
    padding: 0.75rem;
  }

  .about-section > p::before {
    position: static;

    width: auto;
    margin-bottom: 0.35rem;
    padding-top: 0;
  }
}



@media screen and (min-width: 2000px) and (min-height: 1100px) {
  .about-section {
    gap: 0.3rem;
  }

  .about-section > p {
    padding-block: clamp(0.8rem, 1.15vh, 1rem);

    
    line-height: 1.62;
  }
}

/* ============================================================
   4.5. Info: заголовок, выделения и ссылки
   ============================================================ */


.info-block h2 {
  text-align: left;
  text-transform: none;
  letter-spacing: normal;
}


.afil-link {
  text-decoration: none !important;
  color: #4a4541 !important;
  transition: all 0.2s ease;
}

.afil-link.value {
  border-bottom: 1px solid transparent;
}


.suggestions-trigger {
  color: #4a6b53 !important;
  text-decoration: underline;
  text-decoration-color: rgba(74, 107, 83, 0.3);
  font-weight: 700;
  transition: all 0.2s ease;
  cursor: pointer;
}


.suggestions-trigger:hover {
  color: #5b8566 !important;
  text-decoration-color: #5b8566;
  letter-spacing: 0.2px;
}

/* ============================================================
   4.6. Author: профиль, институт и логотип
   ============================================================ */

.author-section {
  margin-top: 1vh !important;
  margin-bottom: 2vh !important;
  padding-bottom: 1.5vh;
  border-bottom: 1px solid #edeade;

}

.author-name {
  display: inline-flex;
  align-items: center;

  gap: 0.45rem;

  margin:
    0 0 0.32rem 0 !important;

  font-family:
    var(--font-primary);

  font-size:
    1.14rem !important;

  font-weight:
    760 !important;

  line-height:
    1.18;

  letter-spacing:
    -0.012em;

  color:
    #4a3e3d !important;
}



.author-flag {
  width: 18px !important;
  height: 18px !important;
  border-radius: 50% !important;
  object-fit: cover !important;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
  flex-shrink: 0;
}

.author-position {
  margin:
    0.1rem 0 0;

  font-family:
    var(--font-primary);

  font-size:
    0.84rem !important;

  font-weight:
    500 !important;

  font-style:
    italic;

  line-height:
    1.35;

  letter-spacing:
    0.01em;

  color:
    #756a61 !important;
}

.institution-panel {
  display: flex;

  flex:
    1 1 auto;

  flex-direction:
    column;

  align-items:
    center;

  justify-content:
    center;

  width:
    100%;

  min-height:
    0;

  margin:
    clamp(
      0.7rem,
      1.4vh,
      1.1rem
    )
    0;

  padding:
    clamp(
      0.95rem,
      1.65vh,
      1.3rem
    )
    clamp(
      0.5rem,
      0.75vw,
      0.8rem
    );

  text-align:
    center;


  

  background-color:
    rgba(73, 103, 120, 0.055);


  border:
    1px solid
    rgba(73, 103, 120, 0.14);

  border-radius:
    7px;



  box-shadow:
    inset 0 1px 0
    rgba(255, 255, 255, 0.34);

  transition:
    background-color 0.2s ease,
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}


.institution-logo-link {
  display: grid;
  place-items: center;

  width: 100%;
  margin: 0;

  text-decoration: none;

  transition: transform 0.2s ease;
}

.institution-large-logo {
  display: block;

  width: min(94%, 11rem);
  height: auto;
  margin-inline: auto;

  object-fit: contain;
  object-position: center;

  filter:
  grayscale(8%)
  opacity(0.95);

  transition:
    filter 0.2s ease,
    transform 0.2s ease;
}

.institution-name {
  width: 100%;

  margin:
    clamp(0.6rem, 1vh, 0.82rem)
    auto
    0;

  font-family:
    var(--font-primary);

  font-size:
    0.8rem;

  font-weight:
    700;

  line-height:
    1.28;

  letter-spacing:
    0.005em;

  text-align:
    center;

  color:
    #4a4641;
}


.institution-name span {
  display: block;

  margin-top:
    0.18rem;

  font-size:
    0.88em;

  font-weight:
    500;

  line-height:
    1.32;

  letter-spacing:
    0.01em;

  color:
    #827469;
}

.institution-logo-link:hover {
  transform:
    none;
}


.institution-logo-link:hover .institution-large-logo {
  filter:
    grayscale(0%)
    opacity(1);

  transform:
    scale(1.012);
}




.institution-panel:has(.institution-logo-link:hover) {
  background-color:
    rgba(73, 103, 120, 0.078);

  border-color:
    rgba(73, 103, 120, 0.22);

  box-shadow:
    inset 0 1px 0
      rgba(255, 255, 255, 0.38),

    0 2px 7px
      rgba(73, 103, 120, 0.04);
}

/* ============================================================
   4.7. Author: нижние действия и контактный popover
   ============================================================ */


.author-actions-container {
  position: relative;

  display: flex;
  flex: 0 0 auto;
  flex-direction: column;

  width: 100%;
  margin-top: 0;

  gap: clamp(0.28rem, 0.48vh, 0.42rem);
}


.author-actions-container .updates-log-pill-btn {
  margin: 0 !important;
}


.contact-popover-wrapper {
  position: relative;
  width: 100%;
}

.contact-toggle-checkbox {
  display: none; 
}

.contact-mini-popover {
  position: absolute;

  bottom: 130%;
  left: 50%;

  transform:
    translateX(-50%)
    translateY(8px);

  width: 100%;
  max-width: 250px;

  padding: 0.7rem 0.9rem;

  background:
    linear-gradient(
      180deg,
      rgba(255, 255, 255, 0.16) 0%,
      rgba(255, 255, 255, 0.02) 100%
    ),
    #f0ebe3;

  color: #4a4641;

  border: 1px solid #b5a696;
  border-radius: 10px;

  box-shadow:
    0 4px 8px rgba(91, 76, 64, 0.07),
    0 12px 26px rgba(91, 76, 64, 0.14);

  z-index: 200;

  opacity: 0;
  pointer-events: none;

  transition:
    opacity 0.22s ease,
    transform 0.22s cubic-bezier(0.4, 0, 0.2, 1),
    box-shadow 0.22s ease;
}


.popover-arrow {
  position: absolute;

  top: 100%;
  left: 50%;

  transform: translateX(-50%);

  border-width: 7px;
  border-style: solid;

  border-color:
    #f0ebe3
    transparent
    transparent
    transparent;
}

.popover-arrow::after {
  content: "";

  position: absolute;

  bottom: 1px;
  left: -7px;

  border-width: 7px;
  border-style: solid;

  border-color:
    #b5a696
    transparent
    transparent
    transparent;

  z-index: -1;
}


.contact-toggle-checkbox:checked ~ .contact-mini-popover {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}


.popover-contacts-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.popover-contacts-list li {
  display: flex;
  align-items: center;

  gap: 0.65rem;

  padding: 0.48rem 0;

  font-size: 0.85rem;

  color: #4a4641;

  border-bottom:
    1px solid
    rgba(181, 166, 150, 0.38);
}

.popover-contacts-list li:last-child {
  border-bottom: none;
}

.popover-contacts-list i {
  width: 1rem;

  color: #8e7f71;

  text-align: center;
  flex: 0 0 auto;
}

.popover-contacts-list a {
  color: #4a4641;

  font-weight: 500;

  text-decoration: none;

  transition:
    color 0.16s ease,
    text-decoration-color 0.16s ease;
}

.popover-contacts-list a:hover {
  color: #75604f;

  text-decoration: underline;
  text-decoration-color:
    rgba(117, 96, 79, 0.42);

  text-underline-offset: 0.14em;
}



.author-card-footer {
  flex: 0 0 auto;

  width: 100%;

  margin-top: clamp(0.8rem, 1.5vh, 1.2rem) !important;
  padding-top: clamp(0.85rem, 1.1vh, 1rem);
}

/* ============================================================
   4.8. Intro footer dividers и метаданные автора
   ============================================================ */


.about-footer,
.author-card-footer {
  position: relative;

  border-top: 0 !important;
}


.about-footer::before {
  content: "";

  position: absolute;

  top: 0;
  left: 0;
  right: 0;

  height:
    var(--intro-divider-thickness);

  background-image:
    repeating-linear-gradient(
      90deg,

      var(--intro-divider-color) 0,

      var(--intro-divider-color)
        var(--intro-divider-dash-length),

      transparent
        var(--intro-divider-dash-length),

      transparent
        calc(
          var(--intro-divider-dash-length) +
          var(--intro-divider-dash-gap)
        )
    );

  background-repeat:
    repeat-x;

  background-size:
    auto
    var(--intro-divider-thickness);

  pointer-events: none;
}


.author-card-footer::before {
  content: "";

  position: absolute;

  top: 0;
  left: 0;
  right: 0;

  height:
    1.5px;

  background-image:
    repeating-linear-gradient(
      90deg,

      var(--intro-divider-color) 0,

      var(--intro-divider-color)
        var(--intro-divider-dash-length),

      transparent
        var(--intro-divider-dash-length),

      transparent
        calc(
          var(--intro-divider-dash-length) +
          var(--intro-divider-dash-gap)
        )
    );

  background-repeat:
    repeat-x;

  background-size:
    auto
    1.5px;

  pointer-events: none;
}


.criteria-footer {
  position: relative;

  border-top: 0 !important;
}


.author-card-footer .footer-row:last-child {
  margin-bottom: 0;
}

.author-card-footer .footer-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;

  gap: 0.6rem;

  margin-bottom:
    0.28rem;

  font-family:
    var(--font-primary);

  font-size:
    0.7rem;

  font-weight:
    650 !important;

  line-height:
    1.2;

  letter-spacing:
    0.07em;

  text-transform:
    uppercase;

  color:
    #91857b;
}

/* ============================================================
   4.9. Крупные экраны: глобальное увеличение шрифта
   ============================================================ */

@media screen and (min-width: 2000px) and (min-height: 1000px) {
  :root {
    --root-font-size: clamp(18px, calc(12px + 0.6vmin), 23px);
  }
}

/* ============================================================
   4.10. Author actions: index-tab controls и состояния
   ============================================================ */

.author-actions-container {
  --author-tab-cut: 7px;
}


.author-actions-container .btn-author-action,
.author-actions-container .updates-log-pill-btn {
  position: relative;

  display: flex !important;
  align-items: center !important;
  justify-content: flex-start !important;

  gap: 0.55rem !important;

  width: 100% !important;

  min-height: 0;

  margin: 0 !important;

  padding:
    0.36rem
    calc(0.85rem + var(--author-tab-cut))
    0.36rem
    0.78rem !important;

  box-sizing: border-box;

  font-family:
    var(--font-primary) !important;

  font-size:
    0.85rem !important;

  font-weight:
    700 !important;

  line-height:
    1.15;

  text-align:
    left !important;

  color:
    var(--ui-warm-text) !important;

  background:
    rgba(233, 224, 213, 0.48) !important;

  border:
    0 !important;

  border-radius:
    0 !important;


  box-shadow:
    inset 2px 0 0
      rgba(159, 140, 121, 0.72),

    inset 0 1px 0
      rgba(182, 165, 147, 0.58),

    inset 0 -1px 0
      rgba(182, 165, 147, 0.58)
      !important;
  

  clip-path:
    polygon(
      0 0,
      calc(100% - var(--author-tab-cut)) 0,
      100% 50%,
      calc(100% - var(--author-tab-cut)) 100%,
      0 100%
    );

  -webkit-clip-path:
    polygon(
      0 0,
      calc(100% - var(--author-tab-cut)) 0,
      100% 50%,
      calc(100% - var(--author-tab-cut)) 100%,
      0 100%
    );

  cursor:
    pointer !important;

  transition:
    color 0.16s ease,
    background-color 0.16s ease,
    box-shadow 0.16s ease
    !important;
}


.author-actions-container .btn-author-action i,
.author-actions-container .updates-log-pill-btn i {
  flex: 0 0 auto;

  width: 1rem;

  margin: 0 !important;

  text-align: center;

  color:
    #756b62;

  transition:
    color 0.16s ease;
}


.author-actions-container .btn-author-action:hover,
.author-actions-container .updates-log-pill-btn:hover {
  color:
    #4f6655 !important;

  background:
    rgba(222, 210, 196, 0.56) !important;

  box-shadow:
    inset 3px 0 0
      rgba(79, 102, 85, 0.74),

    inset 0 1px 0
      rgba(159, 140, 121, 0.62),

    inset 0 -1px 0
      rgba(159, 140, 121, 0.62)
      !important;
}


.author-actions-container .btn-author-action:hover i,
.author-actions-container .updates-log-pill-btn:hover i {
  color:
    #4f6655;
}


.contact-toggle-checkbox:checked + .btn-contact {
  color:
    #3f5948 !important;

  background:
    rgba(79, 102, 85, 0.09) !important;

  box-shadow:
    inset 3px 0 0
      rgba(79, 102, 85, 0.82),

    inset 0 1px 0
      rgba(79, 102, 85, 0.36),

    inset 0 -1px 0
      rgba(79, 102, 85, 0.36)
      !important;
}

.author-actions-container .btn-author-action:focus-visible,
.author-actions-container .updates-log-pill-btn:focus-visible {
  outline:
    1px solid
    rgba(79, 102, 85, 0.55);

  outline-offset:
    2px;
}

/* ============================================================
   4.11. Author: адаптивная типографика до 2000 px
   ============================================================ */

@media screen and (max-width: 1999px) {

  
.author-name {
  gap:
    clamp(
      0.32rem,
      0.42vw,
      0.46rem
    );

  font-size:
    clamp(
      1rem,
      calc(0.76rem + 0.32vw),
      1.1rem
    ) !important;

  line-height:
    1.18;

  letter-spacing:
    -0.012em;
}


.author-flag {
  width:
    clamp(
      14px,
      1em,
      18px
    ) !important;

  height:
    clamp(
      14px,
      1em,
      18px
    ) !important;
}


.author-position {
  font-size:
    clamp(
      0.74rem,
      calc(0.63rem + 0.14vw),
      0.82rem
    ) !important;

  line-height:
    1.34;
}


.institution-name {
  font-size:
    clamp(
      0.7rem,
      calc(0.59rem + 0.13vw),
      0.78rem
    );

  line-height:
    1.28;
}


.institution-name span {
  font-size:
    0.88em;

  line-height:
    1.32;
}

  
  .btn-author-action,
.updates-log-pill-btn {
  min-height: 0;

  padding: 0.3vh 1vw !important;

  font-size:
    clamp(
      0.72rem,
      calc(0.6rem + 0.16vw),
      0.84rem
    ) !important;

  line-height: normal;
}

  
.author-card-footer .footer-row {
  gap:
    0.45rem;

  font-size:
    clamp(
      0.62rem,
      calc(0.54rem + 0.1vw),
      0.7rem
    );

  line-height:
    1.2;

  letter-spacing:
    0.065em;
}

.contact-mini-popover {
    bottom: calc(100% + clamp(0.5rem, 0.9vh, 0.75rem));

    width:
      min(
        calc(100vw - 2rem),
        clamp(12.5rem, 16vw, 15rem)
      );

    max-width: none;

    padding:
      clamp(0.5rem, 0.8vh, 0.7rem)
      clamp(0.6rem, 0.75vw, 0.85rem);
  }

  .popover-contacts-list li {
    min-width: 0;

    gap: clamp(0.4rem, 0.5vw, 0.65rem);
    padding: clamp(0.32rem, 0.55vh, 0.48rem) 0;

    font-size:
      clamp(
        0.72rem,
        calc(0.6rem + 0.17vw),
        0.84rem
      );

    line-height: 1.28;
  }

  .popover-contacts-list i {
    flex: 0 0 1rem;

    width: 1rem;

    font-size: 0.95em;
  }

  .popover-contacts-list a {
    min-width: 0;

    overflow-wrap: anywhere;
  }  
}