.ba-head { max-width: 760px; margin: 0 auto clamp(36px, 5vw, 56px); text-align: center; }
.ba-eyebrow { margin: 0; font: 700 0.78125rem/1.3 var(--font-family); letter-spacing: 0.14em; text-transform: uppercase; color: var(--color-text-subtle); }
.ba-head h2 { margin: 12px auto 0; text-wrap: balance; }
.ba-head h2 + p { margin: 16px auto 0; max-width: 34em; font-size: 1.15625rem; color: var(--color-text-body); }
.ba-stage { display: grid; justify-items: start; gap: 20px; min-width: 0; }
.ba-chip { display: inline-flex; align-items: center; gap: 8px; margin: 0; padding: 6px 14px; border-radius: var(--radius-full); background: var(--ch-glass); border: 1px solid var(--ch-glass-line);
  font: 600 0.84375rem/1.3 var(--font-family); color: var(--color-text-body); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); }
.ba-chip i { flex: 0 0 auto; width: 7px; height: 7px; border-radius: 50%; background: var(--color-accent); }
.ba-docs { position: relative; width: 100%; padding: 10px 0 40px; }
.ba-doc { position: relative; padding: 24px; border-radius: var(--radius-xl); background: var(--ch-glass); border: 1px solid var(--ch-glass-line); box-shadow: var(--ch-shadow);
  -webkit-backdrop-filter: blur(16px) saturate(1.3); backdrop-filter: blur(16px) saturate(1.3); }
.ba-doc::before { content: ""; position: absolute; left: 24px; right: 24px; top: 0; height: 2px; border-radius: 2px; background: linear-gradient(90deg, var(--ch-m1), var(--ch-m2), var(--ch-m3)); }
.ba-doc-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.ba-doc-title { font: 400 1.75rem/1.1 var(--font-head); color: var(--color-dark); }
.ba-doc-tag { flex: 0 0 auto; padding: 6px 8px; border: 1px dashed var(--color-border-strong); border-radius: 8px; font: 700 0.71875rem/1 var(--font-family); letter-spacing: 0.12em; text-transform: uppercase; color: var(--color-text-subtle); }
.ba-doc-rows { display: grid; margin: 16px 0 0; padding: 0; list-style: none; }
.ba-doc-rows li { display: flex; justify-content: space-between; gap: 16px; margin: 0; padding: 12px 0; border-bottom: 1px solid var(--color-border); font-size: 0.9375rem; }
.ba-doc-rows li:last-child { border-bottom: 0; }
.ba-doc-rows span { min-width: 0; color: var(--color-text-subtle); }
.ba-doc-rows b { min-width: 0; text-align: right; color: var(--color-dark); }
.ba-doc-sign { display: flex; align-items: center; gap: 10px; margin: 16px 0 0; font: italic 400 1.375rem/1 var(--font-head); color: var(--color-dark); }
.ba-doc-sign i { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; background: linear-gradient(135deg, var(--ch-m1), var(--ch-m2)); }
.ba-doc-note { position: absolute; right: -8px; bottom: -8px; width: min(270px, 68%); padding: 18px; transform: rotate(2deg); }
.ba-doc-note .ba-note-title { margin: 0; font: 400 1.375rem/1.15 var(--font-head); color: var(--color-dark); }
.ba-doc-note .ba-note-text { margin: 6px 0 0; font-size: 0.875rem; color: var(--color-text-subtle); }
@media (max-width: 560px) {
  .ba-docs { padding-bottom: 0; }
  .ba-doc-note { position: relative; right: auto; bottom: auto; width: auto; margin: -16px 14px 0; transform: rotate(1deg); }
}
@media (prefers-reduced-motion: no-preference) {
  .ba-doc-note { transition: transform 0.4s ease; }
  .ba-docs:hover .ba-doc-note { transform: rotate(0) translateY(-4px); }
}
section.ba-principles { padding: var(--space-6) 0; background: transparent; }
.ba-capsule { padding: 12px; border-radius: var(--radius-xl); background: var(--ch-glass); border: 1px solid var(--ch-glass-line); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); }
.ba-capsule ul { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin: 0; padding: 0; list-style: none; }
.ba-capsule ul li { display: inline-flex; align-items: center; gap: 10px; margin: 0; padding: 8px 14px; font-size: 0.9375rem; font-weight: 600; color: var(--color-text-body); }
.ba-capsule svg { flex: 0 0 auto; width: 18px; height: 18px; color: var(--color-accent-text); }
.ba-plans { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--space-4); align-items: stretch; }
.ba-plan { position: relative; display: flex; flex-direction: column; min-width: 0; margin: 0; padding: var(--space-6) var(--space-5); background: var(--ch-surface); border: 1px solid var(--color-border); border-radius: var(--radius-xl); }
.ba-plan-featured { background: var(--ch-glass); border-color: var(--ch-glass-line); box-shadow: var(--ch-shadow); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px); }
.ba-plan-featured::before { content: ""; position: absolute; left: 26px; right: 26px; top: 0; height: 3px; border-radius: 3px; background: linear-gradient(90deg, var(--ch-m1), var(--ch-m2), var(--ch-m3)); }
.ba-plan .ba-plan-flag { align-self: flex-start; margin: 0 0 12px; font: italic 400 1.125rem/1 var(--font-head); color: var(--color-accent-text); }
.ba-plan .ba-plan-for { margin: 0; font: 700 0.875rem/1.3 var(--font-family); letter-spacing: 0.08em; text-transform: uppercase; color: var(--color-text-subtle); }
.ba-plan h3 { margin: 8px 0 0; font: 400 2.5rem/1 var(--font-head); letter-spacing: -0.01em; }
.ba-plan .ba-plan-text { margin: 10px 0 0; font-size: 1rem; }
.ba-plan .ba-plan-price { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 4px 12px; margin: var(--space-5) 0 0; padding: 14px 0; border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); }
.ba-plan-price b { min-width: 0; font: 400 1.5rem/1.1 var(--font-head); color: var(--color-dark); }
.ba-plan-price span { min-width: 0; font-size: 0.84375rem; color: var(--color-text-subtle); text-align: right; }
.ba-plan ul { display: grid; flex: 1 1 auto; gap: 10px; margin: var(--space-5) 0 0; padding: 0; list-style: none; }
.ba-plan ul li { position: relative; margin: 0; padding-left: 28px; font-size: 1rem; }
.ba-plan ul li::before { content: ""; position: absolute; left: 3px; top: 0.55em; width: 11px; height: 6px; border-left: 2px solid var(--color-accent-text); border-bottom: 2px solid var(--color-accent-text); transform: rotate(-45deg); }
.ba-plan .ba-plan-act { margin: var(--space-6) 0 0; }
.ba-plan-act a { width: 100%; justify-content: space-between; }
@media (min-width: 900px) { .ba-plans { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 479px) { .ba-plan .ba-plan-price { flex-direction: column; align-items: flex-start; gap: 4px; } .ba-plan-price span { text-align: left; } }
.ba-ask-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--space-4); }
.ba-ask { min-width: 0; margin: 0; padding: var(--space-5); background: var(--ch-glass); border: 1px solid var(--ch-glass-line); border-radius: var(--radius-lg); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); }
.ba-ask .ba-ask-q { margin: 0; font: italic 400 1.625rem/1.2 var(--font-head); color: var(--color-dark); }
.ba-ask-q q { quotes: "\201C" "\201D"; }
.ba-ask .ba-ask-text { margin: 10px 0 0; font-size: 1rem; }
@media (min-width: 800px) { .ba-ask-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.ba-clusters { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--space-4); }
.ba-cluster { display: flex; flex-direction: column; gap: 10px; min-width: 0; padding: var(--space-5); background: var(--ch-surface); border: 1px solid var(--color-border); border-radius: var(--radius-xl); }
.ba-cluster h3 { margin: 0; font: 400 1.875rem/1.05 var(--font-head); letter-spacing: -0.01em; }
.ba-cluster .ba-cluster-text { margin: 0; font-size: 0.96875rem; color: var(--color-text-subtle); }
.ba-cluster ul { display: grid; margin: auto 0 0; padding: 0; list-style: none; }
.ba-cluster ul li { margin: 0; }
.ba-cluster ul li a { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 9px 0; border-top: 1px solid var(--color-border); color: var(--color-text-body); font-weight: 600; font-size: 0.9375rem; text-decoration: none; }
.ba-cluster ul li a::after { content: "\2192"; flex: 0 0 auto; color: var(--color-text-subtle); }
.ba-cluster ul li a:hover { color: var(--color-accent-text-hover); }
@media (min-width: 760px) { .ba-clusters { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1080px) { .ba-clusters { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.ba-close { position: relative; isolation: isolate; overflow: hidden; padding: clamp(48px, 7vw, 96px) clamp(24px, 6vw, 80px); border-radius: 36px; text-align: center; background: var(--ch-glass); border: 1px solid var(--ch-glass-line); }
.ba-close::before { content: ""; position: absolute; top: -20%; right: -10%; bottom: -10%; left: -10%; z-index: -1; opacity: calc(var(--ch-mesh-a) + 0.1); filter: blur(60px); pointer-events: none; background: var(--ch-mesh); }
.ba-close h2 { max-width: none; margin: 0 auto; font-size: clamp(2.625rem, 6.4vw, 5.25rem); line-height: 1; text-wrap: balance; }
.ba-close .ba-close-text { max-width: 34em; margin: var(--space-4) auto 0; font-size: 1.15625rem; color: var(--color-dark); }
.ba-close-act { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-3); margin-top: var(--space-6); }
@media (prefers-reduced-motion: no-preference) {
  .ba-close::before { animation: ba-drift 26s ease-in-out infinite alternate; }
  @keyframes ba-drift { to { transform: translate3d(-4%, 3%, 0) scale(1.06) rotate(4deg); } }
}
.ba-close .ba-close-text .ba-mail { color: var(--color-accent-text); font-weight: 700; overflow-wrap: anywhere; }
.ba-brief { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin: var(--space-6) 0 0; padding: 0; list-style: none; }
.ba-brief li { margin: 0; padding: 8px 18px; border-radius: var(--radius-full); border: 1px solid var(--ch-glass-line); background: var(--ch-surface); color: var(--color-text-body); font-size: 0.9375rem; }
.ba-shelf { display: grid; gap: var(--space-5); max-width: none; margin: var(--space-6) 0 0; padding: 0; list-style: none; }
@media (min-width: 700px) { .ba-shelf { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.ba-shelf li { position: relative; display: grid; align-content: start; gap: 8px; margin: 0; padding: 26px 22px 22px; border-radius: 22px; background: var(--ch-surface); border: 1px solid var(--ch-glass-line); box-shadow: var(--ch-shadow); overflow: hidden; }
.ba-shelf li::before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 3px; background: linear-gradient(90deg, var(--ch-m1), var(--ch-m2), var(--ch-m3), var(--ch-m4)); }
.ba-shelf a { font-family: var(--font-head); font-size: 1.375rem; line-height: 1.15; color: var(--color-dark); text-decoration: none; }
.ba-shelf a:hover { color: var(--color-accent-text); text-decoration: underline; }
.ba-note { font-size: var(--font-size-sm); line-height: 1.6; color: var(--color-text-body); }