/* ==============================
   Presentation section
   ============================== */
.presentation {
  position: relative;
  padding: 110px 0;
  background: var(--color-bg);
  overflow: hidden;
}

.presentation__deco {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.presentation__deco--1 {
  width: 500px;
  height: 500px;
  top: -100px;
  right: -120px;
  background: radial-gradient(circle, rgba(13, 92, 74, 0.07) 0%, transparent 70%);
}

.presentation__deco--2 {
  width: 400px;
  height: 400px;
  bottom: -80px;
  left: -100px;
  background: radial-gradient(circle, rgba(26, 154, 125, 0.08) 0%, transparent 70%);
}

.presentation .container {
  position: relative;
  z-index: 1;
}

.presentation__header {
  text-align: center;
  margin-bottom: 64px;
}

.presentation__tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  margin-bottom: 20px;
  border-radius: 100px;
  background: var(--color-accent-soft);
  color: var(--color-accent);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: 1px solid rgba(13, 92, 74, 0.12);
}

.presentation__tag::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(13, 92, 74, 0.15);
}

.presentation__title {
  margin: 0 0 16px;
  font-size: clamp(1.9rem, 3.2vw, 2.6rem);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.presentation__subtitle {
  margin: 0 auto;
  max-width: 620px;
  font-size: 1.05rem;
  color: var(--color-muted);
  line-height: 1.65;
}

/* ---------- Feature grid ---------- */
.presentation__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}

.presentation__card {
  position: relative;
  display: flex;
  flex-direction: column;
  border-radius: 18px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(26, 36, 32, 0.04);
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.35s ease,
    border-color 0.35s ease;
}

.presentation__card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-hero-bg);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
  z-index: 2;
}

.presentation__card:hover {
  transform: translateY(-6px);
  border-color: rgba(13, 92, 74, 0.2);
  box-shadow: 0 24px 64px rgba(13, 92, 74, 0.12);
}

.presentation__card:hover::before {
  transform: scaleX(1);
}

/* Image placeholder */
.presentation__card-img {
  position: relative;
  width: 100%;
  height: 190px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  flex-shrink: 0;
}

.presentation__card-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(0, 0, 0, 0.03) 100%);
  pointer-events: none;
}

.presentation__card-img svg {
  width: 56px;
  height: 56px;
  color: var(--color-accent);
  opacity: 0.55;
  transition: transform 0.4s ease, opacity 0.4s ease;
  position: relative;
  z-index: 1;
}

.presentation__card:hover .presentation__card-img svg {
  transform: scale(1.12) rotate(-4deg);
  opacity: 0.85;
}

.presentation__card-img--ownership { background: linear-gradient(135deg, #fef0e8, #fce4d4); }
.presentation__card-img--stats { background: linear-gradient(135deg, #e8f0fe, #d4e4fc); }
.presentation__card-img--catalog { background: linear-gradient(135deg, #e8f3ef, #d4e8e0); }
.presentation__card-img--cart { background: linear-gradient(135deg, #fef3e2, #fdebd0); }
.presentation__card-img--cabinet { background: linear-gradient(135deg, #e8f0fe, #d4e4fc); }
.presentation__card-img--admin { background: linear-gradient(135deg, #f0e8fe, #e4d8fc); }
.presentation__card-img--constructor { background: linear-gradient(135deg, #e8fef0, #d4fce4); }
.presentation__card-img--chat { background: linear-gradient(135deg, #fef0e8, #fce4d8); }
.presentation__card-img--onec { background: linear-gradient(135deg, #f0f0f0, #e4e4e4); }
.presentation__card-img--seo { background: linear-gradient(135deg, #e8fef8, #d4fcf0); }
.presentation__card-img--promo { background: linear-gradient(135deg, #fef8e8, #fcf0d4); }
.presentation__card-img--blog { background: linear-gradient(135deg, #e8f0f0, #d4e4e4); }
.presentation__card-img--updates { background: linear-gradient(135deg, #e8fefe, #d0fcfc); }
.presentation__card-img--payment { background: linear-gradient(135deg, #f0fef8, #e0fcf0); }

.presentation__card-body {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 26px 26px 30px;
}

.presentation__card-title {
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.presentation__card-desc {
  font-size: 0.9rem;
  color: var(--color-muted);
  line-height: 1.65;
  margin: 0;
}

.presentation__card-divider {
  width: 36px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), #1a9a7d);
  border-radius: 2px;
  margin: 2px 0;
  transition: width 0.35s ease;
}

.presentation__card:hover .presentation__card-divider {
  width: 52px;
}

.presentation__card-advantage {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--color-accent-soft), rgba(13, 92, 74, 0.04));
  border: 1px solid rgba(13, 92, 74, 0.08);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--color-accent);
  line-height: 1.45;
  margin-top: 6px;
  transition: background 0.3s ease;
}

.presentation__card:hover .presentation__card-advantage {
  background: linear-gradient(135deg, rgba(13, 92, 74, 0.12), rgba(13, 92, 74, 0.06));
}

.presentation__card-advantage svg {
  flex-shrink: 0;
  margin-top: 1px;
}

/* Stagger reveal for cards */
.presentation__grid.is-visible .presentation__card {
  animation: cardReveal 0.6s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.presentation__card {
  opacity: 0;
  transform: translateY(24px);
}

.presentation__grid.is-visible .presentation__card:nth-child(1) { animation-delay: 0.04s; }
.presentation__grid.is-visible .presentation__card:nth-child(2) { animation-delay: 0.08s; }
.presentation__grid.is-visible .presentation__card:nth-child(3) { animation-delay: 0.12s; }
.presentation__grid.is-visible .presentation__card:nth-child(4) { animation-delay: 0.16s; }
.presentation__grid.is-visible .presentation__card:nth-child(5) { animation-delay: 0.20s; }
.presentation__grid.is-visible .presentation__card:nth-child(6) { animation-delay: 0.24s; }
.presentation__grid.is-visible .presentation__card:nth-child(7) { animation-delay: 0.28s; }
.presentation__grid.is-visible .presentation__card:nth-child(8) { animation-delay: 0.32s; }
.presentation__grid.is-visible .presentation__card:nth-child(9) { animation-delay: 0.36s; }
.presentation__grid.is-visible .presentation__card:nth-child(10) { animation-delay: 0.40s; }
.presentation__grid.is-visible .presentation__card:nth-child(11) { animation-delay: 0.44s; }
.presentation__grid.is-visible .presentation__card:nth-child(12) { animation-delay: 0.48s; }
.presentation__grid.is-visible .presentation__card:nth-child(13) { animation-delay: 0.52s; }
.presentation__grid.is-visible .presentation__card:nth-child(14) { animation-delay: 0.56s; }

@keyframes cardReveal {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==============================
   Demo access section
   ============================== */
.demo-access {
  position: relative;
  padding: 110px 0;
  background: linear-gradient(180deg, var(--color-surface) 0%, var(--color-bg) 100%);
  overflow: hidden;
}

.demo-access__deco {
  position: absolute;
  width: 600px;
  height: 400px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: radial-gradient(ellipse, rgba(13, 92, 74, 0.05) 0%, transparent 70%);
  pointer-events: none;
}

.demo-access .container {
  position: relative;
  z-index: 1;
}

.demo-access__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.demo-access__header {
  text-align: center;
  margin-bottom: 56px;
}

.demo-access__tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  margin-bottom: 20px;
  border-radius: 100px;
  background: var(--color-accent-soft);
  color: var(--color-accent);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: 1px solid rgba(13, 92, 74, 0.12);
}

.demo-access__tag::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(13, 92, 74, 0.15);
}

.demo-access__title {
  margin: 0 0 14px;
  font-size: clamp(1.9rem, 3.2vw, 2.6rem);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.03em;
}

.demo-access__subtitle {
  margin: 0 auto;
  max-width: 540px;
  font-size: 1.05rem;
  color: var(--color-muted);
  line-height: 1.65;
}

.demo-access__cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  width: 100%;
  max-width: 880px;
}

.demo-access__card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 36px 32px 32px;
  border-radius: 20px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: 0 4px 20px rgba(26, 36, 32, 0.05);
  overflow: hidden;
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.35s ease,
    border-color 0.35s ease;
}

.demo-access__card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--color-hero-bg);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.demo-access__card:hover {
  transform: translateY(-6px);
  box-shadow: 0 28px 72px rgba(13, 92, 74, 0.14);
  border-color: rgba(13, 92, 74, 0.2);
}

.demo-access__card:hover::before {
  opacity: 1;
}

.demo-access__card--admin {
  background: linear-gradient(145deg, #f6f8f7 0%, #eef5f1 100%);
  border-color: rgba(13, 92, 74, 0.25);
}

.demo-access__card--admin::after {
  content: "";
  position: absolute;
  top: -40px;
  right: -40px;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(13, 92, 74, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.demo-access__card-top {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}

.demo-access__card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: var(--color-hero-bg);
  color: #fff;
  flex-shrink: 0;
  box-shadow: 0 8px 24px rgba(13, 92, 74, 0.3);
  transition: transform 0.35s ease;
}

.demo-access__card:hover .demo-access__card-icon {
  transform: scale(1.08) rotate(-3deg);
}

.demo-access__card--admin .demo-access__card-icon {
  background: linear-gradient(135deg, var(--color-accent-hover), var(--color-accent));
}

.demo-access__card-name {
  font-size: 1.18rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.demo-access__badge {
  margin-left: auto;
  padding: 4px 12px;
  border-radius: 100px;
  background: rgba(234, 179, 8, 0.15);
  color: #a16207;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  white-space: nowrap;
  border: 1px solid rgba(234, 179, 8, 0.2);
}

.demo-access__card-desc {
  margin: 0 0 28px;
  font-size: 0.92rem;
  color: var(--color-muted);
  line-height: 1.65;
  flex: 1;
}

.demo-access__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 26px;
  border-radius: 12px;
  font-family: var(--font);
  font-size: 0.92rem;
  font-weight: 600;
  color: #fff;
  background: var(--color-hero-bg);
  text-decoration: none;
  box-shadow: 0 6px 20px rgba(13, 92, 74, 0.3);
  transition: background 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
  align-self: flex-start;
}

.demo-access__btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 32px rgba(13, 92, 74, 0.4);
  text-decoration: none;
  color: #fff;
}

.demo-access__btn svg {
  transition: transform 0.25s ease;
}

.demo-access__btn:hover svg {
  transform: translate(3px, -3px);
}

.demo-access__btn--outline {
  background: transparent;
  color: var(--color-accent);
  border: 2px solid var(--color-accent);
  box-shadow: none;
}

.demo-access__btn--outline:hover {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 8px 28px rgba(13, 92, 74, 0.3);
}

/* ---------- Responsive ---------- */
@media (max-width: 1023px) {
  .presentation,
  .demo-access {
    padding: 70px 0;
  }

  .presentation__header {
    margin-bottom: 44px;
  }

  .presentation__grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .presentation__card-img {
    height: 160px;
  }

  .demo-access__header {
    margin-bottom: 36px;
  }

  .demo-access__cards {
    grid-template-columns: 1fr;
    gap: 18px;
  }
}

@media (max-width: 767px) {
  .presentation,
  .demo-access {
    padding: 48px 0;
  }

  .presentation__card-body {
    padding: 22px 20px 26px;
  }

  .demo-access__card {
    padding: 28px 22px 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .presentation__grid.is-visible .presentation__card {
    animation: none;
    opacity: 1;
    transform: none;
  }
}