/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.9375rem;
  transition: transform 0.35s var(--ease-out), box-shadow 0.35s var(--ease-out),
    background 0.25s var(--ease-soft), color 0.25s var(--ease-soft);
}

.btn--ghost {
  border: 1px solid rgba(255, 255, 255, 0.55);
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(10px);
}

.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.14);
  transform: translateY(-1px);
}

.btn--solid {
  background: #fff;
  color: var(--color-brand-deep);
  box-shadow: var(--shadow-sm);
}

.btn--solid:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--outline-dark {
  border: 1px solid var(--color-line);
  color: var(--color-ink);
  background: #fff;
}

.btn--outline-dark:hover {
  border-color: rgba(0, 56, 200, 0.3);
  color: var(--color-brand);
}

/* ---------- Cards / shells ---------- */
.shell {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.shell--lift {
  transition: transform 0.45s var(--ease-out), box-shadow 0.45s var(--ease-out),
    border-color 0.35s var(--ease-soft);
}

.shell--lift:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(0, 56, 200, 0.16);
}

.shell--soft {
  position: relative;
  overflow: hidden;
  padding: clamp(0.95rem, 1.8vw, 1.2rem) clamp(1rem, 1.8vw, 1.35rem);
  background: rgba(255, 255, 255, 0.72);
  border-color: rgba(40, 120, 248, 0.14);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow:
    0 8px 28px rgba(0, 56, 200, 0.05),
    0 2px 8px rgba(136, 56, 248, 0.04);
}

.shell--glass {
  position: relative;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.58);
  border: 1px solid rgba(255, 255, 255, 0.65);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow:
    0 12px 36px rgba(0, 56, 200, 0.07),
    0 4px 16px rgba(136, 56, 248, 0.05);
}

.shell--glass::before {
  content: "";
  position: absolute;
  top: 0;
  left: 8%;
  right: 8%;
  height: 2.5px;
  border-radius: 99px;
  background: var(--gradient-card-top);
  opacity: 0.9;
}

/* ---------- Section titles ---------- */
.section-head {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 3.25rem;
}

.section-head--compact {
  margin-bottom: clamp(1rem, 2.5vh, 1.75rem);
}

.section-head--left {
  text-align: left;
  margin-inline: 0;
}

.section-kicker {
  display: inline-block;
  font-size: 0.8125rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-logo-blue-bright);
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: clamp(1.55rem, 2.1vw, 2rem);
  font-weight: 750;
  letter-spacing: -0.02em;
  margin: 0 0 0.75rem;
  color: var(--color-ink);
}

.section-title--sub {
  font-size: clamp(1.35rem, 1.8vw, 1.65rem);
}

.section-lead {
  margin: 0;
  color: var(--color-ink-muted);
  font-size: 1rem;
  line-height: 1.75;
}

.section-lead--lines {
  max-width: 52rem;
  margin-inline: auto;
}

.section-lead__line {
  display: block;
}

/* ---------- Tags ---------- */
.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag-row--prominent {
  justify-content: center;
  gap: 0.65rem;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-brand);
  background: var(--color-brand-soft);
  border: 1px solid rgba(0, 56, 200, 0.12);
}

.tag-row--prominent .tag {
  padding: 0.5rem 1.1rem;
  font-size: 0.9375rem;
  background: var(--color-accent-soft);
  border-color: rgba(40, 120, 248, 0.2);
  color: var(--color-brand-deep);
}

/* ---------- Lists ---------- */
.tick-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.tick-list li {
  position: relative;
  padding-left: 1.75rem;
  margin: 0 0 0.85rem;
  color: var(--color-ink-muted);
}

.tick-list--compact li {
  margin-bottom: 0.5rem;
}

.tick-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #fff, var(--color-accent));
  box-shadow: 0 0 0 3px var(--color-accent-soft), 0 0 0 5px var(--color-purple-soft);
}

/* ---------- Motion helpers ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 0.7s var(--ease-out) var(--reveal-delay, 0s),
    transform 0.7s var(--ease-out) var(--reveal-delay, 0s);
  will-change: opacity, transform;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}