.portfolio {
  scroll-margin-top: 6rem;
  border-block: 1px solid var(--line);
  background: var(--white);
}

.portfolio-heading {
  display: grid;
  max-width: 68rem;
  grid-template-columns: minmax(0, 1fr) minmax(18rem, 0.75fr);
  align-items: end;
  gap: clamp(2rem, 7vw, 7rem);
  margin-bottom: clamp(3.5rem, 6vw, 5rem);
}

.portfolio-heading h2 {
  margin-bottom: 0;
  color: var(--navy);
  font-size: clamp(2.75rem, 5vw, 5.35rem);
  font-weight: 800;
  line-height: 0.98;
}

.portfolio-heading p {
  max-width: 31rem;
  margin: 0 0 0.15rem;
  color: var(--slate);
  font-size: 1.03rem;
}

.portfolio-browser {
  display: grid;
  grid-template-columns: minmax(12rem, 0.28fr) minmax(0, 0.72fr);
  border-block: 1px solid var(--line);
}

.portfolio-index {
  display: grid;
  align-content: start;
  border-right: 1px solid var(--line);
}

.portfolio-tab {
  position: relative;
  display: grid;
  grid-template-columns: 2.5rem minmax(0, 1fr);
  gap: 0.55rem;
  width: 100%;
  min-height: 4.75rem;
  align-items: center;
  padding: 0.8rem 1rem;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
  color: var(--slate);
  cursor: pointer;
  text-align: left;
  transition: background-color 180ms ease, color 180ms ease;
}

.portfolio-tab:last-child {
  border-bottom: 0;
}

.portfolio-tab::after {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 3px;
  background: transparent;
  content: "";
  transition: background-color 180ms ease;
}

.portfolio-tab:hover,
.portfolio-tab:focus-visible {
  background: var(--soft);
  color: var(--navy);
}

.portfolio-tab[aria-selected="true"] {
  background: var(--navy);
  color: var(--white);
}

.portfolio-tab[aria-selected="true"]::after {
  background: var(--lime);
}

.portfolio-tab-number {
  color: var(--teal-ink);
  font-family: "Montserrat", "Avenir Next", Avenir, "Segoe UI", sans-serif;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.portfolio-tab[aria-selected="true"] .portfolio-tab-number {
  color: var(--lime);
}

.portfolio-tab-title {
  overflow: hidden;
  font-family: "Montserrat", "Avenir Next", Avenir, "Segoe UI", sans-serif;
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  line-height: 1.25;
  text-overflow: ellipsis;
}

.portfolio-stage {
  min-width: 0;
  padding: clamp(1.25rem, 3.2vw, 2.8rem);
  outline: 0;
}

.portfolio-media {
  position: relative;
  aspect-ratio: 16 / 9;
  margin: 0;
  overflow: hidden;
  border: 1px solid #d9e0e8;
  background: var(--soft);
  box-shadow: 0 18px 48px rgba(11, 45, 91, 0.12);
}

.portfolio-media::after {
  position: absolute;
  z-index: 2;
  inset: 0;
  background: linear-gradient(120deg, rgba(255, 255, 255, 0.88), rgba(238, 246, 247, 0.76));
  content: "";
  opacity: 0;
  pointer-events: none;
  transition: opacity 180ms ease;
}

.portfolio-media.is-loading::after {
  opacity: 1;
}

.portfolio-chrome {
  position: absolute;
  z-index: 1;
  display: flex;
  width: 100%;
  height: clamp(1.8rem, 3vw, 2.4rem);
  align-items: center;
  gap: 0.34rem;
  padding-inline: 0.8rem;
  border-bottom: 1px solid rgba(11, 45, 91, 0.13);
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(12px);
}

.portfolio-chrome span {
  width: 0.48rem;
  height: 0.48rem;
  border-radius: 50%;
  background: #cbd5e1;
}

.portfolio-chrome span:first-child {
  background: var(--teal);
}

.portfolio-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.portfolio-protection {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin: 0.95rem 0 0;
  color: var(--slate);
  font-family: "Montserrat", "Avenir Next", Avenir, "Segoe UI", sans-serif;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.095em;
  line-height: 1.4;
  text-transform: uppercase;
}

.portfolio-protection::before {
  display: inline-block;
  width: 1.8rem;
  height: 2px;
  background: var(--lime);
  content: "";
}

.portfolio-details {
  display: grid;
  grid-template-columns: minmax(0, 0.75fr) minmax(16rem, 1.25fr);
  column-gap: clamp(2rem, 6vw, 6rem);
  align-items: start;
  margin-top: clamp(1.7rem, 3vw, 2.4rem);
}

.portfolio-category {
  grid-column: 1;
  margin-bottom: 0.65rem;
  color: var(--teal-ink);
  font-family: "Montserrat", "Avenir Next", Avenir, "Segoe UI", sans-serif;
  font-size: 0.67rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  line-height: 1.25;
  text-transform: uppercase;
}

.portfolio-details h3 {
  grid-column: 1;
  margin-bottom: 0;
  color: var(--navy);
  font-size: clamp(1.8rem, 3vw, 2.85rem);
  font-weight: 800;
  letter-spacing: -0.055em;
  line-height: 0.98;
}

.portfolio-summary {
  grid-column: 2;
  grid-row: 1 / span 2;
  max-width: 34rem;
  margin: 0;
  color: var(--slate);
  font-size: 1rem;
  line-height: 1.65;
}

.portfolio-features {
  display: grid;
  grid-column: 1 / -1;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin: clamp(2rem, 4vw, 3.2rem) 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.portfolio-features li {
  min-height: 5rem;
  padding: 1rem 1rem 0.5rem 0;
  color: var(--navy);
  font-size: 0.82rem;
  font-weight: 600;
  line-height: 1.45;
}

.portfolio-features li + li {
  padding-left: 1rem;
  border-left: 1px solid var(--line);
}

.portfolio-features li::before {
  display: block;
  width: 1.5rem;
  height: 2px;
  margin-bottom: 0.7rem;
  background: var(--teal);
  content: "";
}

.portfolio-features li:nth-child(2)::before {
  background: var(--lime);
}

.portfolio-features li:nth-child(3)::before {
  background: var(--navy);
}

.portfolio-contact-link {
  grid-column: 1 / -1;
  width: fit-content;
  margin-top: 1.2rem;
}

@media (max-width: 900px) {
  .portfolio-browser {
    grid-template-columns: minmax(10.5rem, 0.26fr) minmax(0, 0.74fr);
  }

  .portfolio-tab {
    grid-template-columns: 2rem minmax(0, 1fr);
    min-height: 4.5rem;
    padding-inline: 0.75rem;
  }

  .portfolio-details {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .portfolio-summary {
    grid-column: 1;
    grid-row: auto;
    margin-top: 1.1rem;
  }
}

@media (max-width: 720px) {
  .portfolio {
    scroll-margin-top: 5rem;
  }

  .portfolio-heading {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-bottom: 3.25rem;
  }

  .portfolio-heading h2 {
    font-size: clamp(2.8rem, 12vw, 4.5rem);
  }

  .portfolio-browser {
    display: block;
  }

  .portfolio-index {
    display: flex;
    overflow-x: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
    scrollbar-width: thin;
  }

  .portfolio-tab {
    width: max-content;
    min-width: 8.8rem;
    min-height: 4.3rem;
    flex: 0 0 auto;
    grid-template-columns: 1.8rem minmax(0, 1fr);
    padding: 0.8rem;
    border-right: 1px solid var(--line);
    border-bottom: 0;
  }

  .portfolio-tab::after {
    top: auto;
    right: 0;
    bottom: 0;
    width: auto;
    height: 3px;
  }

  .portfolio-tab-title {
    max-width: 7.5rem;
    white-space: nowrap;
  }

  .portfolio-stage {
    padding: 1rem 0 0;
  }

  .portfolio-media {
    border-inline: 0;
    box-shadow: none;
  }

  .portfolio-protection,
  .portfolio-details {
    margin-inline: var(--page-pad);
  }

  .portfolio-details {
    margin-top: 1.55rem;
  }

  .portfolio-features {
    grid-template-columns: 1fr;
    margin-top: 1.7rem;
  }

  .portfolio-features li,
  .portfolio-features li + li {
    min-height: 0;
    padding: 0.95rem 0;
    border-left: 0;
    border-bottom: 1px solid var(--line);
  }

  .portfolio-features li::before {
    display: inline-block;
    width: 1.25rem;
    margin: 0 0.65rem 0.22rem 0;
  }

  .portfolio-contact-link {
    margin-bottom: 2rem;
  }
}