/* 2020 — темна тема, скло, великий тип, grid, cookie-банер і чат-віджет. */

[data-era="2020"] #stage {
  background:
    radial-gradient(900px 500px at 80% -10%, rgba(124, 92, 255, 0.28), transparent 65%),
    radial-gradient(700px 420px at 5% 20%, rgba(0, 209, 178, 0.18), transparent 60%),
    #0b0f17;
  color: #d7dde8;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
}

.e20-wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}
.e20-plain {
  margin: 0;
  padding: 0;
  list-style: none;
}

.e20 a {
  color: inherit;
  text-decoration: none;
}

/* header */
.e20-head {
  position: sticky;
  top: var(--shell-h);
  z-index: 20;
  background: rgba(11, 15, 23, 0.72);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}
.e20-head__in {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 72px;
}
.e20-logo {
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.16em;
}
.e20-nav {
  display: flex;
  gap: 26px;
  margin-left: auto;
  color: #93a0b5;
  font-size: 15px;
}
.e20-nav a:hover {
  color: #fff;
}

/* кнопки */
.e20-btn {
  display: inline-block;
  padding: 11px 22px;
  border: 0;
  border-radius: 12px;
  background: linear-gradient(135deg, #7c5cff, #00d1b2);
  color: #06101a;
  font-family: inherit;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.18s, box-shadow 0.18s;
}
.e20-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 30px -10px rgba(124, 92, 255, 0.8);
}
.e20-btn--lg {
  padding: 14px 28px;
  font-size: 16px;
}
.e20-ghost {
  display: inline-block;
  padding: 13px 20px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 12px;
  background: transparent;
  color: #d7dde8;
  font-family: inherit;
  font-size: 15px;
  cursor: pointer;
  transition: border-color 0.18s, color 0.18s;
}
.e20-ghost:hover {
  border-color: rgba(255, 255, 255, 0.4);
  color: #fff;
}

/* типографіка */
.e20-eyebrow {
  margin: 0 0 14px;
  color: #00d1b2;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.e20-h1 {
  max-width: 16ch;
  margin: 0 0 22px;
  color: #fff;
  font-size: clamp(40px, 6.6vw, 78px);
  font-weight: 800;
  line-height: 1.03;
  letter-spacing: -0.03em;
}
.e20-h2 {
  max-width: 22ch;
  margin: 0 0 18px;
  color: #fff;
  font-size: clamp(28px, 3.8vw, 44px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
}
.e20-lede {
  max-width: 60ch;
  margin: 0 0 26px;
  color: #93a0b5;
  font-size: 18px;
}
.e20-meta {
  margin: 0;
  color: #6c7a90;
  font-size: 14px;
}

.e20-hero {
  padding: 110px 0 90px;
}
.e20-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin: 0 0 26px;
}

.e20-section {
  padding: 80px 0;
}

.e20-grid {
  display: grid;
  gap: 20px;
  margin-top: 40px;
}
.e20-grid--3 {
  grid-template-columns: repeat(3, 1fr);
}
.e20-grid--4 {
  grid-template-columns: repeat(4, 1fr);
}

/* скляні картки */
.e20-glass {
  padding: 26px 24px;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.045);
  backdrop-filter: blur(10px);
  transition: transform 0.22s, border-color 0.22s, background-color 0.22s;
}
.e20-glass:hover {
  transform: translateY(-3px);
  border-color: rgba(124, 92, 255, 0.5);
  background: rgba(255, 255, 255, 0.07);
}
.e20-glass h3 {
  margin: 0 0 8px;
  color: #fff;
  font-size: 19px;
  font-weight: 600;
}
.e20-glass p {
  margin: 0;
  color: #93a0b5;
  font-size: 15px;
}
.e20-num {
  color: #00d1b2;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
}

/* кейси */
.e20-case {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.04);
}
.e20-case img {
  display: block;
  width: 100%;
  height: 230px;
  object-fit: cover;
  transition: transform 0.5s;
}
.e20-case:hover img {
  transform: scale(1.05);
}
.e20-case__body {
  padding: 18px 20px 20px;
}
.e20-case h3 {
  margin: 0 0 4px;
  color: #fff;
  font-size: 18px;
  font-weight: 600;
}
.e20-case p {
  margin: 0;
  color: #6c7a90;
  font-size: 14px;
}

/* процес */
.e20-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 40px;
}
.e20-steps h3 {
  margin: 12px 0 6px;
  color: #fff;
  font-size: 18px;
  font-weight: 600;
}
.e20-steps p {
  margin: 0;
  color: #93a0b5;
  font-size: 15px;
}
.e20-dot {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(124, 92, 255, 0.35), rgba(0, 209, 178, 0.3));
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: #fff;
  font-weight: 700;
}

/* контакт */
.e20-contact {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.e20-formbox {
  padding: 30px;
}
.e20-row {
  margin: 0 0 16px;
}
.e20-label {
  display: block;
  margin-bottom: 7px;
  color: #d7dde8;
  font-size: 13px;
  font-weight: 600;
}
.e20-input {
  width: 100%;
  padding: 13px 15px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.28);
  color: #fff;
  font-family: inherit;
  font-size: 15px;
}
.e20-input::placeholder {
  color: #5c6779;
}
.e20-input:focus {
  outline: none;
  border-color: #7c5cff;
  box-shadow: 0 0 0 3px rgba(124, 92, 255, 0.25);
}
.e20-msg {
  margin: 0 0 14px;
  padding: 11px 15px;
  border-radius: 12px;
  font-size: 14px;
}
.e20-msg--error {
  background: rgba(255, 91, 91, 0.14);
  color: #ffb4b4;
}
.e20-msg--done {
  background: rgba(0, 209, 178, 0.14);
  color: #93f5e3;
}

/* підвал */
.e20-foot {
  padding: 30px 0 110px;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  color: #6c7a90;
  font-size: 14px;
}
.e20-foot__in {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

/* cookie і чат */
.e20-cookie {
  position: fixed;
  left: 24px;
  right: 24px;
  bottom: 24px;
  z-index: 40;
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  max-width: 720px;
  margin: 0 auto;
  padding: 16px 20px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 18px;
  background: rgba(17, 22, 33, 0.92);
  backdrop-filter: blur(12px);
  box-shadow: 0 20px 60px -20px rgba(0, 0, 0, 0.8);
}
.e20-cookie p {
  flex: 1 1 260px;
  margin: 0;
  font-size: 14px;
}
.e20-cookie__btns {
  display: flex;
  gap: 10px;
}
.e20-cookie .e20-btn,
.e20-cookie .e20-ghost {
  padding: 9px 16px;
  font-size: 14px;
}

.e20-chat {
  position: fixed;
  right: 24px;
  bottom: 108px;
  z-index: 39;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 13px 20px;
  border-radius: 999px;
  background: linear-gradient(135deg, #7c5cff, #00d1b2);
  box-shadow: 0 14px 34px -12px rgba(124, 92, 255, 0.9);
  color: #06101a;
  font-size: 15px;
  font-weight: 700;
  animation: e20-pulse 3.2s ease-in-out infinite;
}
@keyframes e20-pulse {
  50% {
    transform: translateY(-4px);
  }
}

@media (max-width: 980px) {
  .e20-grid--3,
  .e20-grid--4,
  .e20-steps {
    grid-template-columns: repeat(2, 1fr);
  }
  .e20-contact {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 640px) {
  .e20-nav {
    display: none;
  }
  .e20-grid--3,
  .e20-grid--4,
  .e20-steps {
    grid-template-columns: 1fr;
  }
  .e20-hero {
    padding: 64px 0 56px;
  }
  .e20-section {
    padding: 56px 0;
  }
  .e20-chat {
    bottom: 150px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .e20-btn,
  .e20-glass,
  .e20-case img,
  .e20-chat {
    transition: none;
    animation: none;
  }
}