/* Section 03. Base layout is designed for a narrow, single-column reading flow. */
.interest-case{--case-soft:#f4f5fa;--case-rule:#dce1ee;--case-pink:#ff4d73;--case-ink:#2e3d91;color:var(--case-ink)}
.interest-case h4{margin:0}.interest-case figure{margin:28px 0 0}.interest-case ol,.interest-case ul{list-style:none;padding:0;margin:0}
.interest-case .v-section-heading{display:block}.interest-case .v-kicker{font-size:10px;line-height:1.7;color:var(--blue);margin-bottom:18px;letter-spacing:1.3px}
.interest-case .v-section-heading h2{font-size:clamp(30px,8.2vw,44px);line-height:1.18;letter-spacing:-1.4px;max-width:20ch;text-wrap:balance}
.interest-case .section-intro{font-size:15px;line-height:1.8;color:#62667d;margin-top:22px;max-width:55ch}
.diagram-label,.chapter-label,.phase-number{display:block;text-transform:uppercase;font-size:10px;font-weight:700;line-height:1.7;letter-spacing:1px}
/* One comparison, with the numbers and destination on the same visual axis. */
.interest-case .system-comparison{position:relative;display:grid;margin-top:32px;border-radius:18px;overflow:hidden;background:var(--case-soft)}
.previous-system,.planned-system{min-width:0;padding:27px 24px}.baseline-fact{display:grid;grid-template-columns:55px minmax(0,1fr);align-items:center;gap:16px;margin:18px 0 23px}.baseline-fact>strong{font-size:62px;line-height:1;font-weight:400;letter-spacing:-4px}.baseline-fact>span{font-size:15px;line-height:1.6;max-width:27ch}
.external-tools{display:grid;grid-template-columns:1fr 1fr;gap:0 15px}.external-tools li{font-size:13px;line-height:1.65;padding:10px 0;border-top:1px solid #dce1ee}
.system-direction{position:absolute;top:0;left:calc(50% - 18px);display:none}.planned-system{background:var(--blue);color:white}.planned-system .diagram-label{color:#cdd5ff}
.destination-path{display:grid;grid-template-columns:minmax(0,1fr) 18px minmax(0,1fr);gap:8px;align-items:center;padding-top:14px;border-top:1px solid #6470ae}.destination-path>div{min-width:0}.destination-path strong{display:block;font-size:13px;font-weight:700;line-height:1.6}.destination-path div>span{display:block;color:#d6dcff;font-size:12px;line-height:1.6;margin-top:4px}.destination-arrow{font-size:25px;text-align:center}.interest-case .system-comparison figcaption{grid-column:1/-1;font-size:11px;line-height:1.7;color:#62667d;padding:16px 24px;margin:0;background:var(--case-soft)}
/* Shared editorial rhythm, without reducing text to fit the desktop diagrams. */
.case-chapter{padding-top:64px;scroll-margin-top:24px}.chapter-label{margin-bottom:14px;color:var(--blue)}.chapter-heading>h3{font-size:26px;line-height:1.24;letter-spacing:-.85px;text-wrap:balance;max-width:27ch}.chapter-intro{font-size:15px;line-height:1.8;color:#62667d;margin-top:17px;max-width:63ch}
/* Three moments. Each contains the two actors/actions, in reading order. */
.journey-groups{display:grid;gap:32px}.journey-group{position:relative;min-width:0}.journey-group-heading{display:flex;align-items:center;gap:13px;margin-bottom:15px}.journey-group-heading>span{font-size:12px;font-weight:700;display:grid;place-items:center;width:34px;height:34px;border:1px solid #c4cce4;border-radius:50%;background:white;flex-shrink:0}.journey-group-heading h4{font-size:17px;line-height:1.4;letter-spacing:-.35px}
.journey-pair{position:relative;border-left:1px solid #c4cce4;margin-left:16px;padding-left:22px;display:grid;gap:22px}.journey-node{position:relative;min-width:0}.node-actor{display:inline-flex;align-items:center;gap:6px;font-size:10px;font-weight:700;line-height:1.5;letter-spacing:.35px;color:#626c92;margin-bottom:7px}.node-actor:before{content:'';display:block;width:5px;height:5px;background:#9da9cc;border-radius:50%}.journey-node h4{font-size:17px;line-height:1.5;letter-spacing:-.3px;font-weight:400}.journey-node p{font-size:14px;line-height:1.7;color:#62667d;margin-top:4px;max-width:32ch}.journey-node:before{content:'';position:absolute;width:7px;height:7px;border-radius:50%;background:white;border:1px solid #9da9cc;left:-26px;top:7px}.stage-record{padding:21px 20px;background:var(--blue);border-radius:12px;color:white}.stage-record .node-actor,.stage-record p{color:#d6dcff}.stage-record .node-actor:before{background:#ff7c99}.stage-record:before{background:var(--blue);border-color:var(--blue)}.automatic-label{font-size:11px;line-height:1.5;color:var(--blue);margin:-5px 0 -13px}.interest-case .journey-figure figcaption{font-size:11px;line-height:1.8;color:#62667d;margin-top:25px;max-width:75ch}
/* Four phases as a continuous vertical index on phones. */
.deal-timeline>ol{display:grid;counter-reset:phase;gap:0}.deal-timeline>ol>li{position:relative;min-width:0;padding:0 0 31px 43px;border-left:1px solid #c4cce4;margin-left:14px;counter-increment:phase}.deal-timeline>ol>li:last-child{border-left-color:transparent;padding-bottom:0}.deal-timeline>ol>li:before{content:counter(phase,decimal-leading-zero);position:absolute;left:-15px;top:0;width:29px;height:29px;display:grid;place-items:center;background:white;border:1px solid #c4cce4;border-radius:50%;font-size:10px;font-weight:700}.deal-timeline>ol>.entry-phase:before{border-color:var(--case-pink);color:var(--case-pink)}.phase-number{display:none}.deal-timeline h4{font-size:19px;line-height:1.5;letter-spacing:-.4px;font-weight:400}.phase-subtitle{font-size:12px;line-height:1.65;color:#62667d;margin-top:4px}.deal-timeline ul{display:grid;gap:10px;margin-top:19px}.deal-timeline ul li{font-size:14px;line-height:1.65;position:relative;padding-left:14px}.deal-timeline ul li:before{content:'';position:absolute;left:0;top:9px;width:4px;height:4px;border-radius:50%;background:#a8b3d4}.deal-timeline ul .interest-entry{padding:10px 12px;border-left:2px solid var(--case-pink);border-radius:0 6px 6px 0;background:#fff0f4;font-weight:700}.deal-timeline ul .interest-entry:before{display:none}.entry-note{display:flex;gap:9px;font-size:12px;line-height:1.7;color:#62667d;margin-top:13px;max-width:30ch}.entry-note>span{color:var(--case-pink);font-size:21px;line-height:1.1}
/* Outcomes are questions and answers, with one clear hierarchy. */
.team-answers{margin:28px 0 0;display:grid}.team-answers>div{padding:25px 0;border-top:1px solid var(--case-rule);min-width:0}.team-answers dt{display:flex;align-items:center;gap:13px;font-size:18px;line-height:1.45;letter-spacing:-.4px;font-weight:700}.answer-icon{width:36px;height:36px;display:grid;place-items:center;flex-shrink:0;background:var(--case-soft);border-radius:10px}.answer-icon svg{width:22px;height:22px;stroke:var(--blue);stroke-width:1.3;stroke-linecap:round;stroke-linejoin:round}.team-answers dd{margin:14px 0 0;font-size:15px;line-height:1.8;color:#62667d;max-width:50ch}.interest-case .case-status{font-size:11px;line-height:1.8;color:#62667d;margin-top:22px;padding-top:20px;border-top:1px solid var(--case-rule);max-width:none}
@media(min-width:600px){
 .previous-system,.planned-system{padding:32px}.interest-case .system-comparison figcaption{padding-inline:32px}.baseline-fact{grid-template-columns:65px 1fr}.baseline-fact>strong{font-size:76px}.baseline-fact>span{font-size:16px}.external-tools li{font-size:14px}.destination-path strong{font-size:14px}.destination-path div>span{font-size:13px}
 .chapter-heading>h3{font-size:32px;max-width:29ch}.case-chapter{padding-top:80px}.journey-pair{grid-template-columns:1fr 1fr;gap:32px;padding:0 0 0 25px}.journey-node p{font-size:15px}.journey-node:before{left:-29px}.journey-node:nth-of-type(2):before{display:none}.journey-node:nth-of-type(2):after{content:'→';position:absolute;left:-26px;top:30px;color:#9da9cc}.stage-record{padding:20px}.automatic-label{grid-column:1/-1;margin:0 0 -22px}.stage-record+.journey-node:after{left:-26px}
 .deal-timeline>ol{grid-template-columns:1fr 1fr;gap:35px 30px}.deal-timeline>ol>li,.deal-timeline>ol>li:last-child{margin:0;padding:24px 0 0;border-left:0;border-top:1px solid var(--case-rule)}.deal-timeline>ol>li:before{left:0;top:-15px}.deal-timeline h4{margin-top:0}.entry-note{max-width:29ch}
}
@media(min-width:900px){
 .case-opening{display:grid;grid-template-columns:1.25fr 1fr;gap:60px;align-items:end}.interest-case .v-section-heading h2{font-size:43px;max-width:22ch}.interest-case .section-intro{font-size:16px;margin-top:0;padding-bottom:3px}.interest-case .system-comparison{grid-template-columns:1fr 1fr;margin-top:38px;border-radius:18px}.previous-system,.planned-system{padding:34px 38px}.baseline-fact{grid-template-columns:70px 1fr;margin:20px 0 26px}.external-tools{column-gap:28px}.destination-path{padding-top:12px;min-height:85px}.system-direction{display:grid;place-items:center;top:calc(50% - 36px);left:calc(50% - 19px);z-index:2;width:38px;height:38px;border:4px solid white;border-radius:50%;background:var(--case-pink);color:white;font-size:22px}.interest-case .system-comparison figcaption{padding:14px 38px;font-size:11px}
 .case-chapter{padding-top:88px}.chapter-heading{display:grid;grid-template-columns:1.25fr 1fr;gap:0 60px;align-items:end}.chapter-label{grid-column:1/-1;margin-bottom:17px}.chapter-heading>h3{font-size:32px;max-width:29ch}.chapter-intro{font-size:15px;line-height:1.8;margin:0;padding-bottom:2px}
 .interest-case .journey-figure{margin-top:36px}.journey-groups{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.journey-group{background:var(--case-soft);border-radius:14px;padding:24px 22px}.journey-group-heading{margin-bottom:25px;gap:10px}.journey-group-heading>span{width:30px;height:30px;font-size:11px;border:0}.journey-group-heading h4{font-size:17px}.journey-group:not(:last-child):after{content:'→';position:absolute;right:-19px;top:28px;z-index:2;color:#7e8cb9;background:white;border-radius:50%;width:28px;height:28px;display:grid;place-items:center;font-size:18px}
 .journey-pair{grid-template-columns:1fr;gap:27px;margin:0 0 0 3px;padding-left:19px}.journey-node h4{font-size:17px}.journey-node p{font-size:14px}.journey-node:before{left:-23px}.journey-node:nth-of-type(2):before{display:block}.journey-node:nth-of-type(2):after{display:none}.journey-pair .stage-record{margin-left:-4px;padding:16px 14px}.journey-pair .stage-record:before{left:-19px}.journey-node{min-height:110px}.automatic-label{margin:-16px 0 -16px;font-size:10px}.journey-figure figcaption{margin-top:18px!important}
 .team-answers{grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;margin-top:35px}.team-answers>div{padding-top:24px;padding-bottom:0}.team-answers dt{display:block;font-size:20px;line-height:1.4;min-height:105px}.answer-icon{margin-bottom:17px;width:40px;height:40px}.team-answers dd{font-size:15px;margin-top:16px}.interest-case .case-status{margin-top:35px}
}
@media(min-width:1150px){
 .case-opening,.chapter-heading{grid-template-columns:1.2fr 1fr;column-gap:90px}.interest-case .v-section-heading h2{font-size:42px}.interest-case .section-intro{font-size:17px}.chapter-heading>h3{font-size:35px}.chapter-intro{font-size:16px}.previous-system,.planned-system{padding:36px 45px}.baseline-fact>strong{font-size:82px}.baseline-fact{gap:24px}.baseline-fact>span{font-size:17px}.destination-path strong{font-size:15px}.destination-path div>span{font-size:13px}
 .journey-groups{gap:28px}.journey-group{padding:28px}.journey-group:not(:last-child):after{right:-22px}.journey-group-heading h4{font-size:20px}.journey-pair{gap:29px}.journey-node h4{font-size:19px}.journey-node p{font-size:15px}.node-actor{font-size:11px}.journey-node{min-height:112px}.journey-pair .stage-record{padding:18px}.automatic-label{font-size:11px}
 .deal-timeline>ol{grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}.deal-timeline h4{font-size:20px}.phase-subtitle{font-size:12px}.deal-timeline ul li{font-size:14px}.team-answers{gap:45px}.team-answers dt{font-size:22px}.team-answers dd{font-size:16px}
}
@media(prefers-reduced-motion:reduce){.interest-case{scroll-behavior:auto}}