/* FDE: scoped additions using the existing IAventure design tokens. */
.fde-section { position: relative; isolation: isolate; margin-block: 4rem; color: var(--neutral); }
#fde { scroll-margin-top: calc(var(--headerH) + 1rem); }
.fde-panel { padding: clamp(1.25rem, 4vw, 4rem); border: 1px solid var(--primary); border-radius: 3rem 0 3rem 0; background: var(--secondary); background-image: radial-gradient(ellipse at top right, #a298e820, transparent 60%); }
.fde-feature-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: clamp(2rem, 5vw, 5rem); align-items: center; }
.fde-section h2 { font-size: clamp(2rem, 3.8vw, 3.75rem); font-weight: 800; line-height: 1.08; letter-spacing: -.025em; }
.fde-section h3 { font-size: clamp(1.5rem, 2.5vw, 2.35rem); font-weight: 700; line-height: 1.2; max-width: 38ch; }
.fde-section h4 { font-size: 1.15rem; font-weight: 700; line-height: 1.4; }
.fde-section p { line-height: 1.6; margin-top: 1.25rem; max-width: 70ch; color: var(--neutral-dark); }
.fde-section strong { font-weight: 700; color: var(--neutral); }
.fde-section .fde-eyebrow { font-size: .8rem; letter-spacing: .1em; text-transform: uppercase; font-weight: 700; color: var(--primary-light); margin: 0 0 1rem; }
.fde-section .fde-kicker { color: var(--accent); font-size: 1.15rem; font-weight: 600; margin: .75rem 0 1.5rem; }
.fde-section .fde-lead { font-size: clamp(1.2rem, 1.7vw, 1.5rem); color: var(--primary-light); line-height: 1.4; }
.fde-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 2rem; margin-top: 1.5rem; }
.fde-section .fde-button { --btnH: 5.5rem; font-size: .9rem; white-space: normal; text-align: left; padding-right: 3.5rem; min-height: 5.5rem; height: auto; max-width: 100%; }
.fde-button::after { background-size: 1.25rem; }
.fde-text-link { display: inline-flex; align-items: center; gap: .5rem; min-height: 44px; text-decoration: underline; text-underline-offset: .3em; }
.fde-section a:focus-visible, .fde-section summary:focus-visible, .fde-hero-link:focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; border-radius: 3px; }
.fde-cycle { border-left: 1px solid var(--primary); padding-left: 2rem; }
.fde-lifecycle { list-style: none; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.fde-lifecycle li { min-width: 0; border-top: 1px solid #a298e860; padding: 1.25rem 0; }
.fde-number { display: block; color: var(--accent); font-size: .8rem; margin-bottom: .75rem; }
.fde-lifecycle strong { font-size: .9rem; text-transform: uppercase; letter-spacing: .04em; }
.fde-lifecycle li:not(:last-child) > strong::after { content: ' →'; color: var(--accent); }
.fde-proofs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2rem; list-style: none; border-top: 1px solid #a298e860; padding-top: 2rem; margin-top: 3rem; }
.fde-proofs li { font-size: .85rem; line-height: 1.6; color: var(--neutral-dark); }
.fde-proofs strong { display: block; font-size: .95rem; margin-bottom: .5rem; }
.fde-manifesto { border-left: 2px solid var(--primary); padding-left: 2rem; }
.fde-manifesto p:first-child, .fde-manifesto p:nth-child(2) { font-size: clamp(1.3rem, 2.3vw, 2rem); line-height: 1.5; }
.fde-manifesto p:first-child { color: var(--primary-light); }
.fde-work, .fde-expertise, .fde-rhythm, .fde-comparison, .fde-faq, .fde-conversion { margin-top: 4rem; padding-top: 3rem; border-top: 1px solid #a298e860; }
.fde-lifecycle-full { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem 2rem; margin-top: 2rem; }
.fde-lifecycle-full h4 { margin-top: 1rem; }
.fde-lifecycle-full p { font-size: .95rem; margin-top: .75rem; }
.fde-tags { display: flex; flex-wrap: wrap; gap: .75rem; list-style: none; margin-top: 1.5rem; }
.fde-tags li { padding: .6rem 1rem; border: 1px solid var(--primary); border-radius: 2rem; font-size: .875rem; }
.fde-rhythm, .fde-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.fde-columns { margin-top: 2rem; }
.fde-columns h4 { color: var(--accent); }
.fde-columns ul { padding-left: 1.25rem; margin-top: 1rem; }
.fde-columns li { line-height: 1.65; margin-bottom: .5rem; }
.fde-faq h3 { margin-bottom: 1.5rem; }
.fde-faq details { border-bottom: 1px solid #a298e860; }
.fde-faq summary { padding: 1.25rem .25rem; cursor: pointer; font-weight: 600; line-height: 1.5; }
.fde-faq details p { margin: 0 0 1.5rem; }
.fde-conversion .btn { margin-top: 1.5rem; }
.fde-bridge { background: var(--secondary); padding-block: 2rem; }
.fde-bridge h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); max-width: 35ch; }
.fde-bridge-diagram { margin-block: 2.5rem 0; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); }
.fde-bridge-diagram ol { grid-column: 1 / -1; display: grid; grid-template-columns: subgrid; list-style: none; gap: .75rem; }
.fde-bridge-diagram li { padding: 1rem .5rem; border-bottom: 1px solid var(--primary); font-size: .9rem; font-weight: 600; }
.fde-bridge-diagram li:not(:last-child)::after { content: ' →'; color: var(--accent); }
.fde-bridge-diagram .fde-continuity { grid-column: 3 / -1; border-left: 2px solid var(--accent); padding: 1rem; background: #a298e818; font-size: .9rem; }
#home #hero .btn-ctn { height: auto; min-height: var(--btnH); display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 1rem 2rem; }
#home #hero .btn-ctn > .btn { position: relative; right: auto; margin: 0; }
.fde-hero-link { display: flex; flex-direction: column; align-items: flex-start; gap: .35rem; padding: .8rem 1.2rem; border: 1px solid var(--primary); background: var(--secondary); border-radius: 1rem 0; line-height: 1.4; }
.fde-hero-link strong { color: var(--primary-light); font-size: .75rem; font-weight: 700; }
.fde-hero-link span { font-size: .85rem; }
.fde-hero-link span:last-child { text-decoration: underline; text-underline-offset: .25rem; color: var(--accent); }
@media (max-width: 999px) {
 .fde-feature-grid { grid-template-columns: 1fr; }
 .fde-cycle { border-left: 0; padding-left: 0; }
 .fde-lifecycle-full { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 639px) {
 .fde-section { margin-block: 2.5rem; }
 .fde-panel { border-radius: 1.5rem 0; }
 .fde-proofs, .fde-rhythm, .fde-columns { grid-template-columns: 1fr; gap: 1.5rem; }
 .fde-actions { align-items: stretch; flex-direction: column; }
 .fde-section .fde-button { width: 100%; }
 .fde-lifecycle { grid-template-columns: 1fr; gap: 0; }
 .fde-lifecycle li:not(:last-child) > strong::after { content: ' ↓'; }
 .fde-bridge-diagram, .fde-bridge-diagram ol { display: block; }
 .fde-bridge-diagram li { padding: 1rem; }
 .fde-bridge-diagram li:not(:last-child)::after { content: ' ↓'; }
 .fde-bridge-diagram .fde-continuity { margin-left: 1rem; }
 #home #hero .btn-ctn { flex-direction: column; padding-bottom: 1rem; }
 .fde-hero-link { width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
 html:has(.fde-section) { scroll-behavior: auto; }
 .fde-section *, .fde-section *::before, .fde-section *::after, .fde-hero-link { animation: none !important; transition: none !important; }
}
/* Keep the new static content readable if the legacy animation bundle fails. */
.fde-section, .fde-hero-link { visibility: visible; }
@supports not (grid-template-columns: subgrid) {
 .fde-bridge-diagram ol { grid-template-columns: repeat(5, minmax(0, 1fr)); }
}