:root { --portfolio-accent: var(--navy); }

.portfolio-page { min-height: 100vh; background: #f8faff; }
.portfolio-hero { padding: 180px 0 66px; }
.portfolio-kicker {
  margin: 0 0 20px;
  color: #7080a2;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.portfolio-hero h1 {
  max-width: 1100px;
  margin: 0;
  color: var(--portfolio-accent);
  font-size: clamp(52px, 8vw, 118px);
  line-height: .95;
  letter-spacing: -.065em;
  transition: color 220ms ease;
}
.portfolio-filters {
  margin-top: clamp(48px, 7vw, 86px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}
.filter-button {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 0;
  border: 0;
  border-bottom: 2px solid transparent;
  background: none;
  color: #5d6880;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}
.filter-button i { width: 12px; height: 12px; border-radius: 50%; background: currentColor; }
.filter-button:first-child i { display: none; }
.filter-button--web { color: var(--blue); }
.filter-button--ads { color: #d7a900; }
.filter-button--identity { color: var(--red); }
.filter-button--drone { color: #1bafa7; }
.filter-button.is-active { border-bottom-color: currentColor; }
.filter-button:focus-visible { border-radius: 4px; }

.portfolio-work { padding: 0 0 110px; }
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  grid-auto-flow: dense;
  gap: 12px;
}
.portfolio-card { position: relative; margin: 0; min-height: 300px; overflow: hidden; }
.portfolio-card:nth-child(1), .portfolio-card:nth-child(2) { grid-column: span 4; }
.portfolio-card:nth-child(3) { grid-column: span 4; grid-row: span 2; }
.portfolio-card:nth-child(4) { grid-column: span 4; grid-row: span 2; }
.portfolio-card:nth-child(5) { grid-column: span 4; }
.portfolio-card:nth-child(6) { grid-column: span 8; }
.portfolio-card[hidden] { display: none; }
.portfolio-card p {
  position: absolute;
  left: 18px;
  bottom: 16px;
  margin: 0;
  padding: 7px 11px;
  border-radius: 999px;
  background: rgba(8,29,76,.75);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
}
.portfolio-demo {
  width: 100%;
  height: 100%;
  min-height: 300px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: transform 350ms ease;
}
.portfolio-card:hover .portfolio-demo { transform: scale(1.02); }
.portfolio-demo span { font-weight: 900; line-height: .9; letter-spacing: -.06em; text-align: center; }
.portfolio-demo small { margin-bottom: 15px; font-weight: 800; letter-spacing: .12em; }
.portfolio-card--azara .portfolio-demo { background: radial-gradient(circle at 45% 42%, #566ce7, transparent 40%), linear-gradient(145deg, #3047c4, #6672e5); color: #fff; }
.portfolio-card--azara span { font-size: 56px; font-style: italic; }
.portfolio-card--talketo .portfolio-demo { background: radial-gradient(circle at 60% 15%, #353535, #050505 56%); color: #c6ffc7; }
.portfolio-card--talketo span { font-size: 45px; }
.portfolio-card--2026 .portfolio-demo { background: radial-gradient(circle at 25% 30%, rgba(34,217,255,.3), transparent 28%), linear-gradient(145deg, #fff, #eef7ff); color: #5681dd; }
.portfolio-card--2026 span { font-size: clamp(90px, 11vw, 170px); text-shadow: 0 22px 34px rgba(55,128,232,.22); }
.portfolio-card--north .portfolio-demo { background: linear-gradient(145deg, #5b12ff, #1c12e7); color: #fff; }
.portfolio-card--north span { padding: 22px 28px; background: #fff; color: #111; font-size: 28px; transform: skew(-9deg); }
.portfolio-card--protection .portfolio-demo { background: radial-gradient(circle at 18% 70%, #8549da, transparent 28%), linear-gradient(145deg, #12102e, #09051e); color: #e2c5ff; }
.portfolio-card--protection span { padding: 34px; border: 1px solid rgba(255,255,255,.15); border-radius: 22px; font-size: 30px; }
.portfolio-card--mob .portfolio-demo { flex-direction: row; gap: 34px; background: #050505; color: #fff; }
.portfolio-card--mob b { color: #db4053; font-size: 150px; font-weight: 900; line-height: .6; transform: skew(-10deg); }
.portfolio-card--mob span { font-size: 50px; text-align: left; }
.portfolio-note { margin-top: 24px; color: #7a86a3; font-size: 12px; line-height: 1.5; }

@media (max-width: 900px) {
  .portfolio-filters { flex-wrap: wrap; justify-content: flex-start; }
  .portfolio-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .portfolio-card, .portfolio-card:nth-child(n) { grid-column: span 1; grid-row: auto; min-height: 290px; }
  .portfolio-card:nth-child(3), .portfolio-card:nth-child(4), .portfolio-card:nth-child(6) { grid-column: span 2; }
}
@media (max-width: 560px) {
  .portfolio-hero { padding: 145px 0 48px; }
  .portfolio-hero h1 { font-size: clamp(48px, 15vw, 70px); }
  .portfolio-filters { margin-top: 44px; display: grid; align-items: start; gap: 9px; }
  .filter-button { width: fit-content; font-size: 11px; }
  .portfolio-grid { grid-template-columns: 1fr; }
  .portfolio-card:nth-child(n) { grid-column: 1; min-height: 270px; }
  .portfolio-card--mob .portfolio-demo { gap: 17px; }
  .portfolio-card--mob b { font-size: 92px; }
  .portfolio-card--mob span { font-size: 30px; }
}
@media (prefers-reduced-motion: reduce) {
  .portfolio-hero h1, .portfolio-demo { transition: none; }
}