/* ===== Fonts ===== */
@font-face {
  font-family: "IBM Plex Mono";
  src: url("../fonts/ibm-plex-mono-300-normal.woff2") format("woff2");
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("../fonts/ibm-plex-mono-300-italic.woff2") format("woff2");
  font-weight: 300;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("../fonts/ibm-plex-mono-400-normal.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("../fonts/ibm-plex-mono-700-normal.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

/* ===== Base ===== */
:root {
  --dark: #111b2d;
  --white: #ffffff;
  --text: rgba(17, 27, 45, 0.85);
  --muted: rgba(17, 27, 45, 0.75);
  --muted-light: rgba(255, 255, 255, 0.8);
  --font: "IBM Plex Mono", "Courier New", monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font);
  font-weight: 300;
  color: var(--dark);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, p, ul, address {
  margin: 0;
  padding: 0;
}

ul {
  list-style: none;
}

address {
  font-style: normal;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.section--dark {
  background: var(--dark);
  color: var(--white);
}

/* Общая шапка секций 2 и 3 */
.section__head {
  text-align: center;
  margin-bottom: 56px;
}

.section__title {
  font-size: 36px;
  font-weight: 700;
  line-height: 1.23;
  letter-spacing: 0.5px;
}

.section__subtitle {
  margin-top: 4px;
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: 0.5px;
  color: var(--muted);
}

.section--dark .section__subtitle {
  color: var(--muted-light);
}

/* ===== 1. About ===== */
.about {
  padding: 105px 0 130px;
}

.about__head {
  text-align: center;
}

.about__title {
  font-size: 66px;
  font-weight: 700;
  line-height: 1.17;
  letter-spacing: 1px;
}

.about__slogan {
  margin-top: -6px;
  font-size: 16px;
  font-style: italic;
  line-height: 1.5;
  letter-spacing: 0.3px;
  color: var(--muted);
}

.about__text {
  max-width: 620px;
  margin: 52px auto 0;
  font-size: 18px;
  line-height: 1.6;
  letter-spacing: 0.4px;
  color: var(--text);
}

.about__text p + p {
  margin-top: 28px;
}

.about__text strong {
  font-weight: 700;
  color: var(--dark);
}

/* ===== Cards (projects + team) ===== */
.cards {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  max-width: 800px;
  margin: 0 auto;
}

.card {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 33.333%;
  padding: 0 10px;
  text-align: center;
}

.card__photo {
  width: 200px;
  height: 200px;
  object-fit: cover;
}

.card__name {
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.card__role {
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* --- 2. Projects --- */
.projects {
  padding: 50px 0 80px;
}

.cards--projects {
  row-gap: 44px;
}

.cards--projects .card__name {
  font-size: 17px;
  line-height: 1.45;
}

.cards--projects .card__role {
  font-size: 17px;
  line-height: 1.45;
  color: var(--muted-light);
}

/* Подпись прижата книзу: однострочное имя (ANNA) выравнивается по второй строке соседей */
.cards--projects .card__info {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  margin-top: 32px;
}

.card__social {
  display: block;
  margin-top: 16px;
  transition: opacity 0.2s;
}

.card__social:hover {
  opacity: 0.7;
}

.card__social img {
  width: 26px;
  height: 26px;
}

/* --- 3. Team --- */
.team {
  padding: 50px 0 80px;
}

.cards--team {
  row-gap: 56px;
}

.cards--team .card__name {
  margin-top: 32px;
  font-size: 16px;
  line-height: 1.4;
}

.cards--team .card__role {
  margin-top: 16px;
  font-size: 15px;
  line-height: 1.4;
  color: var(--muted);
}

/* ===== 4. Join ===== */
.join {
  padding: 35px 0 0;
}

.join__head {
  text-align: center;
}

.join__title {
  font-size: 40px;
  font-weight: 700;
  line-height: 1.23;
  letter-spacing: 1.5px;
}

.join__subtitle {
  margin-top: 2px;
  font-size: 16px;
  line-height: 1.55;
  letter-spacing: 1px;
  color: var(--muted-light);
}

.join__list {
  margin-top: 50px;
  text-align: center;
}

.join__item + .join__item {
  margin-top: 50px;
}

.join__item-title {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 1.2px;
  text-transform: uppercase;
}

.join__email {
  display: inline-block;
  font-size: 15px;
  line-height: 1.5;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--muted-light);
  transition: color 0.2s;
}

.join__email:hover {
  color: var(--white);
}

/* ===== Footer ===== */
.footer {
  padding: 105px 0 25px;
  background: var(--dark);
  color: var(--white);
  text-align: center;
  font-size: 9px;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.footer__contacts p + p {
  margin-top: 16px;
}

.footer__links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px 42px;
  margin-top: 36px;
}

.footer a {
  transition: opacity 0.2s;
}

.footer a:hover {
  opacity: 0.7;
}

/* На страницах документов футер отделён от белого контента */
.doc + .footer {
  padding-top: 50px;
}

/* ===== Documents ===== */
.doc {
  padding: 60px 0 80px;
}

.container--doc {
  max-width: 800px;
}

.doc__back {
  display: inline-block;
  margin-bottom: 30px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--muted);
  transition: color 0.2s;
}

.doc__back:hover {
  color: var(--dark);
}

.doc__title {
  margin-bottom: 30px;
  font-size: 40px;
  font-weight: 700;
  line-height: 1.23;
  letter-spacing: 1px;
}

.doc h2 {
  margin: 36px 0 12px;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.35;
}

.doc p {
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  overflow-wrap: break-word;
}

.doc p + p {
  margin-top: 12px;
}

/* ===== Adaptive ===== */
@media (max-width: 960px) {
  .about {
    padding: 80px 0 100px;
  }
}

@media (max-width: 640px) {
  .container {
    padding: 0 16px;
  }

  .about {
    padding: 60px 0 70px;
  }

  .about__title {
    font-size: 42px;
  }

  .about__slogan {
    margin-top: 0;
    font-size: 14px;
  }

  .about__text {
    margin-top: 36px;
    font-size: 15px;
    letter-spacing: 0.2px;
  }

  .about__text p + p {
    margin-top: 22px;
  }

  .section__title {
    font-size: 26px;
  }

  .section__subtitle {
    font-size: 14px;
  }

  .section__head {
    margin-bottom: 40px;
  }

  .projects,
  .team {
    padding: 40px 0 50px;
  }

  /* две колонки, нечётная последняя карточка - по центру */
  .card {
    width: 50%;
    padding: 0 6px;
  }

  .card__photo {
    width: 150px;
    height: 150px;
  }

  .cards--projects {
    row-gap: 36px;
  }

  .cards--projects .card__info {
    margin-top: 22px;
  }

  .cards--projects .card__name,
  .cards--projects .card__role {
    font-size: 14px;
    letter-spacing: 0.5px;
  }

  .card__social img {
    width: 24px;
    height: 24px;
  }

  .cards--team {
    row-gap: 40px;
  }

  .cards--team .card__name {
    margin-top: 22px;
  }

  .cards--team .card__name,
  .cards--team .card__role {
    font-size: 12px;
    letter-spacing: 0.5px;
  }

  .join {
    padding-top: 50px;
  }

  .join__title {
    font-size: 28px;
  }

  .join__subtitle {
    font-size: 14px;
  }

  .join__list {
    margin-top: 40px;
  }

  .join__item + .join__item {
    margin-top: 34px;
  }

  .join__item-title,
  .join__email {
    font-size: 13px;
    letter-spacing: 0.5px;
  }

  .footer {
    padding-top: 70px;
  }

  .doc {
    padding: 40px 0 60px;
  }

  .doc__title {
    font-size: 28px;
  }

  .doc h2 {
    font-size: 17px;
  }

  .doc p {
    font-size: 14px;
  }
}

@media (max-width: 400px) {
  .about__title {
    font-size: 36px;
  }

  .card__photo {
    width: 130px;
    height: 130px;
  }

  .cards--projects .card__name,
  .cards--projects .card__role {
    font-size: 13px;
  }

  .cards--team .card__name,
  .cards--team .card__role {
    font-size: 11px;
    letter-spacing: 0.3px;
  }
}