/* ========================================================================== Babson AI Providers — Consulting Executive Brief Visual register: McKinsey / BCG / federal-report ========================================================================== */ :root { --babson-green: #006747; --babson-green-dark: #004C33; --charcoal: #2C3540; --charcoal-soft: #4A5560; --rule: #1F2A33; --rule-soft: #C9CFD4; --rule-faint: #E5E7EA; --bg: #FFFFFF; --bg-soft: #FAFAF8; --bg-box: #F4F4F0; --text: #1A1F25; --text-muted: #5F6B75; --link: #006747; --serif: "IBM Plex Serif", "Charter", "Source Serif Pro", Georgia, serif; --sans: "IBM Plex Sans", "Helvetica Neue", Helvetica, Arial, sans-serif; --mono: "IBM Plex Mono", "SF Mono", Menlo, monospace; } /* ------------------------------- reset / base ----------------------------- */ * { box-sizing: border-box; } /* Reader-controlled font scale. Default bumped from 16px → 17.5px for older eyes. 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} .masthead .masthead-rule:last-child { display: none; } /* ------------------------------- authors' note ----------------------------- */ .authors-note { margin: 2rem 0 0; padding: 1.5rem 2rem 1.5rem; background: #ffffff; border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); font-family: var(--serif); font-size: 1rem; line-height: 1.6; } .an-header { margin-bottom: 0.85rem; } .an-tag { display: inline-block; font-family: var(--sans); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--babson-green-dark); padding-bottom: 0.25rem; border-bottom: 1px solid var(--rule); } .authors-note p { margin: 0 0 0.85rem; max-width: 70ch; } .authors-note p:last-of-type { margin-bottom: 1.1rem; } .authors-note em { font-style: italic; color: var(--babson-green-dark); } .authors-note a { color: var(--babson-green-dark); text-decoration: underline; text-underline-offset: 2px; } .an-signoff { display: flex; flex-wrap: wrap; gap: 0 2rem; padding-top: 0.85rem; border-top: 1px dotted var(--rule); margin-top: 0.5rem; } .an-signoff-name { font-family: var(--serif); font-size: 0.95rem; font-style: italic; color: var(--text); letter-spacing: 0.005em; } .an-signoff-name::before { content: "—\00a0"; font-style: normal; color: var(--text-muted); } /* --------------------------- executive summary ---------------------------- */ .executive-summary { background: var(--bg-box); border-left: 4px solid var(--babson-green); padding: 1.5rem 2rem 1.75rem; margin: 2rem 0 2.5rem; position: relative; } .es-header { margin-bottom: 0.85rem; } .es-tag { display: inline-block; font-family: var(--sans); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--babson-green-dark); border-bottom: 2px solid var(--babson-green); padding-bottom: 0.25rem; } .es-list { margin: 0; padding-left: 1.25rem; font-family: var(--serif); font-size: 1rem; line-height: 1.6; } .es-list li { margin-bottom: 0.6rem; padding-left: 0.35rem; } .es-list li:last-child { margin-bottom: 0; } .es-list li::marker { font-family: var(--sans); font-weight: 600; color: var(--babson-green); font-size: 0.9em; } /* --------------------------------- sections ------------------------------- */ .section { margin-top: 2.5rem; padding-top: 0.5rem; } .section-head { display: flex; align-items: baseline; gap: 0.85rem; border-bottom: 2px solid var(--rule); padding-bottom: 0.45rem; margin-bottom: 1.25rem; } .section-num { font-family: var(--sans); font-weight: 700; font-size: 1.05rem; letter-spacing: 0.02em; color: var(--babson-green); flex-shrink: 0; font-variant-numeric: tabular-nums; } .section-head h2 { font-family: var(--sans); font-size: 1.45rem; font-weight: 600; margin: 0; letter-spacing: -0.005em; } .section h3 { font-family: var(--sans); font-size: 1.05rem; font-weight: 600; margin: 1.5rem 0 0.65rem; color: var(--text); display: flex; align-items: baseline; gap: 0.6rem; } .section h3 .section-num.small { font-size: 0.85rem; color: var(--charcoal-soft); } .lede { font-family: var(--serif); font-size: 1rem; color: var(--charcoal); line-height: 1.6; margin-bottom: 1.1rem; max-width: 60em; } /* --------------------------------- tables --------------------------------- */ .data-table { width: 100%; border-collapse: collapse; font-family: var(--sans); font-size: 0.9rem; margin: 1rem 0 1.5rem; border-top: 2px solid var(--rule); border-bottom: 2px solid var(--rule); } .data-table thead th { background: var(--bg-soft); text-align: left; font-weight: 600; font-size: 0.74rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--charcoal); padding: 0.7rem 0.85rem; border-bottom: 1px solid var(--rule); vertical-align: bottom; } .data-table tbody td { padding: 0.85rem; border-bottom: 1px solid var(--rule-faint); vertical-align: top; line-height: 1.5; color: var(--text); } .data-table tbody tr:last-child td { border-bottom: none; } .data-table .cell-provider { font-weight: 600; color: var(--babson-green-dark); font-size: 0.95rem; letter-spacing: -0.005em; } .data-table .meta { font-style: italic; color: var(--text-muted); font-size: 0.85em; font-weight: 400; } .providers-table tbody td em { font-style: italic; color: var(--charcoal); } /* --------------------------------- callout -------------------------------- */ .callout { background: #FFFFFF; border: 1px solid var(--rule); border-left: 4px solid var(--charcoal); padding: 1rem 1.35rem 1.1rem; margin: 1rem 0 1rem; font-family: var(--sans); font-size: 0.92rem; line-height: 1.55; } .callout-tag { font-family: var(--sans); font-size: 0.7rem; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; color: var(--charcoal); margin-bottom: 0.45rem; } .callout p { margin: 0; color: var(--text); } .callout strong { color: var(--babson-green-dark); } /* --------------------------------- matrix --------------------------------- */ .matrix-figure { margin: 1.25rem 0 1.5rem; } .matrix { display: grid; grid-template-columns: auto 1fr; grid-template-rows: 1fr auto; gap: 0.75rem 0.85rem; align-items: stretch; background: var(--bg-soft); border: 1px solid var(--rule); padding: 1.5rem 1.75rem 1.25rem; max-width: 720px; } .matrix-y-label { grid-column: 1; grid-row: 1; writing-mode: vertical-rl; transform: rotate(180deg); font-family: var(--sans); font-size: 0.72rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--charcoal); align-self: center; text-align: center; } .matrix-grid { grid-column: 2; grid-row: 1; display: grid; grid-template-columns: auto 1fr; grid-template-rows: 1fr auto; gap: 0.5rem; } .matrix-axis-y { grid-column: 1; grid-row: 1; display: flex; flex-direction: column; justify-content: space-between; font-family: var(--sans); font-size: 0.7rem; color: var(--text-muted); letter-spacing: 0.06em; text-transform: uppercase; padding: 0.25rem 0.4rem 0.25rem 0; text-align: right; } .matrix-quadrants { grid-column: 2; grid-row: 1; display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: 1fr 1fr; border: 1px solid var(--rule); min-height: 280px; position: relative; } .matrix-quadrants::before { content: ""; position: absolute; inset: 0; background: linear-gradient(to right, transparent calc(50% - 0.5px), var(--rule-soft) calc(50% - 0.5px), var(--rule-soft) calc(50% + 0.5px), transparent calc(50% + 0.5px)), linear-gradient(to bottom, transparent calc(50% - 0.5px), var(--rule-soft) calc(50% - 0.5px), var(--rule-soft) calc(50% + 0.5px), transparent calc(50% + 0.5px)); pointer-events: none; } .quadrant { position: relative; padding: 0.85rem 1rem; display: flex; flex-direction: column; justify-content: center; align-items: flex-start; gap: 0.25rem; background: rgba(255, 255, 255, 0.6); } .q-marker { display: inline-flex; align-items: center; justify-content: center; width: 1.7rem; height: 1.7rem; border-radius: 50%; font-family: var(--sans); font-weight: 700; font-size: 0.85rem; color: #fff; margin-bottom: 0.2rem; } .q-marker-openai { background: var(--babson-green); } .q-marker-anthropic { background: var(--charcoal); } .q-marker-google { background: #B45309; } .q-name { font-family: var(--sans); font-weight: 600; font-size: 0.92rem; color: var(--text); } .q-note { font-family: var(--sans); font-size: 0.74rem; color: var(--text-muted); line-height: 1.35; } .q-note sup.ref a { color: var(--text-muted); } .matrix-axis-x { grid-column: 2; grid-row: 2; display: flex; justify-content: space-between; font-family: var(--sans); font-size: 0.7rem; color: var(--text-muted); letter-spacing: 0.06em; text-transform: uppercase; padding: 0.4rem 0.25rem 0; } .matrix-x-label { grid-column: 2; grid-row: 2; font-family: var(--sans); font-size: 0.72rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--charcoal); text-align: center; padding-top: 0.35rem; } .matrix-figure figcaption { font-family: var(--sans); font-size: 0.78rem; color: var(--text-muted); margin-top: 0.65rem; font-style: italic; line-height: 1.5; max-width: 60em; } /* ----------------------------- adoption grid ------------------------------ */ .adoption-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; margin-top: 1rem; } .adoption-card { border: 1px solid var(--rule-soft); border-top: 3px solid var(--babson-green); padding: 1rem 1.1rem 1.1rem; background: #FFFFFF; display: flex; flex-direction: column; } .ac-head { display: flex; align-items: baseline; gap: 0.55rem; padding-bottom: 0.55rem; border-bottom: 1px solid var(--rule-faint); margin-bottom: 0.75rem; } .ac-num { font-family: var(--sans); font-weight: 700; font-size: 0.78rem; color: var(--babson-green); letter-spacing: 0.04em; font-variant-numeric: tabular-nums; } .ac-provider { font-family: var(--sans); font-weight: 600; font-size: 1.02rem; color: var(--text); } .ac-list { list-style: none; margin: 0; padding: 0; font-family: var(--serif); font-size: 0.92rem; line-height: 1.5; } .ac-list li { padding: 0.5rem 0; border-bottom: 1px dotted var(--rule-faint); color: var(--charcoal); } .ac-list li:last-child { border-bottom: none; } .ac-list strong { color: var(--text); font-weight: 600; } /* ------------------------------ observations ----------------------------- */ .observations { list-style: none; counter-reset: obs; margin: 1rem 0 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem 1.5rem; } .observations li { counter-increment: obs; background: var(--bg-soft); border-left: 3px solid var(--babson-green); padding: 1rem 1.25rem 1.1rem; position: relative; } .observations li::before { content: counter(obs, decimal-leading-zero); position: absolute; top: 0.85rem; right: 1.1rem; font-family: var(--mono); font-weight: 500; font-size: 0.78rem; color: var(--babson-green); letter-spacing: 0.05em; } .observations h4 { font-family: var(--sans); font-size: 0.98rem; font-weight: 600; margin: 0 2rem 0.4rem 0; color: var(--text); line-height: 1.3; } .observations p { font-family: var(--serif); font-size: 0.94rem; line-height: 1.55; color: var(--charcoal); margin: 0; } /* ------------------------------ references -------------------------------- */ .references-section { margin-top: 3rem; padding-top: 1.5rem; border-top: 3px double var(--rule); } .references-section .section-num { font-family: var(--serif); font-size: 1.3rem; color: var(--charcoal); } .ref-note { font-family: var(--sans); font-size: 0.82rem; color: var(--text-muted); font-style: italic; margin-bottom: 1rem; } .references-list { margin: 0; padding-left: 2.25rem; font-family: var(--serif); font-size: 0.86rem; line-height: 1.5; color: var(--charcoal); counter-reset: refs; list-style: decimal; } .references-list li { padding: 0.45rem 0; border-bottom: 1px dotted var(--rule-faint); } .references-list li:last-child { border-bottom: none; } .references-list li:target { background: rgba(0, 103, 71, 0.06); padding-left: 0.4rem; margin-left: -0.4rem; } .references-list em { color: var(--text); } .references-list a { word-break: break-all; font-family: var(--mono); font-size: 0.78rem; color: var(--charcoal-soft); } /* -------------------------------- colophon -------------------------------- */ .colophon { margin-top: 3rem; padding-top: 1rem; } .colophon-rule { height: 1px; background: var(--rule); margin-bottom: 0.85rem; } .colophon-inner { display: flex; justify-content: space-between; font-family: var(--sans); font-size: 0.72rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-muted); } /* -------------------------------- responsive ------------------------------ */ @media (max-width: 820px) { .page { padding: 1.5rem 1.25rem 3rem; } .masthead-inner { grid-template-columns: 1fr; gap: 1.5rem; } .masthead h1 { font-size: 1.75rem; } .adoption-grid { grid-template-columns: 1fr; } .observations { grid-template-columns: 1fr; } .data-table { font-size: 0.85rem; } .data-table thead th, .data-table tbody td { padding: 0.6rem 0.5rem; } .matrix { padding: 1rem; } .matrix-quadrants { min-height: 220px; } .topbar { padding: 0.5rem 1rem; font-size: 0.68rem; } .topbar-meta { display: none; } } /* ------------------------------ hello modal -------------------------------- */ /* Modal overlay shown on page load with the authors' note + CTA. */ html.modal-open { overflow: hidden; } .hello-dialog { border: none; padding: 0; background: transparent; max-width: 720px; width: calc(100% - 2rem); margin: auto; box-shadow: none; color: var(--text); } .hello-dialog::backdrop { background: rgba(20, 25, 31, 0.55); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); } .hello-content { background: #ffffff; border-top: 4px solid var(--babson-green); border-radius: 6px; padding: 1.4rem 1.75rem 1.5rem; font-family: var(--serif); font-size: 1rem; line-height: 1.6; box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25), 0 4px 14px rgba(0, 0, 0, 0.1); max-height: calc(100vh - 4rem); overflow-y: auto; } .hello-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1rem; border-bottom: 1px solid var(--rule); padding-bottom: 0.6rem; } .hello-tag { display: inline-block; font-family: var(--sans); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--babson-green-dark); } .hello-close-x { background: transparent; border: none; color: var(--text-muted); font-size: 1.6rem; line-height: 1; cursor: pointer; padding: 0 0.25rem; } .hello-close-x:hover { color: var(--text); } .hello-content p { margin: 0 0 0.85rem; max-width: 65ch; } .hello-content em { font-style: italic; color: var(--babson-green-dark); } .hello-content a { color: var(--babson-green-dark); text-decoration: underline; text-underline-offset: 2px; } .hello-signoff { display: flex; flex-wrap: wrap; gap: 0.3rem 1.5rem; padding: 0.7rem 0 0; border-top: 1px dotted var(--rule); margin: 0.6rem 0 1.1rem; } .hello-signoff-name { font-family: var(--serif); font-size: 0.95rem; font-style: italic; color: var(--text); } .hello-signoff-name::before { content: "—\00a0"; font-style: normal; color: var(--text-muted); } .hello-actions { display: flex; justify-content: flex-end; align-items: center; gap: 0.75rem; padding-top: 0.4rem; border-top: 1px solid var(--rule); } .hello-cta { font-family: var(--sans); font-size: 0.95rem; font-weight: 600; padding: 0.65rem 1.1rem; background: var(--babson-green); color: #ffffff; border: 1px solid var(--babson-green-dark); border-radius: 4px; cursor: pointer; transition: background 120ms ease, transform 120ms ease; } .hello-cta:hover { background: var(--babson-green-dark); transform: translateY(-1px); } .hello-cta-secondary { font-family: var(--sans); font-size: 0.88rem; color: var(--babson-green-dark); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; margin-right: auto; transition: color 120ms ease; } .hello-cta-secondary:hover { color: var(--babson-green); } .hello-cta:focus-visible { outline: 2px solid var(--babson-green-dark); outline-offset: 2px; } @media (max-width: 640px) { .hello-content { padding: 1.1rem 1.2rem 1.2rem; } .hello-actions { justify-content: stretch; } .hello-cta { width: 100%; text-align: center; } } /* ------------------------- sticky section nav ----------------------------- */ /* Sits below the masthead; sticks to the top of the viewport on scroll. */ .section-nav { position: sticky; top: 0; z-index: 40; background: rgba(255, 255, 255, 0.94); backdrop-filter: saturate(140%) blur(8px); -webkit-backdrop-filter: saturate(140%) blur(8px); border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); margin: 1.5rem 0 1.25rem; display: flex; align-items: stretch; justify-content: space-between; gap: 1rem; } .section-nav-inner { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0 0.15rem; align-items: stretch; flex: 1; min-width: 0; } .section-nav-inner li { display: inline-flex; } .section-nav-inner a { display: inline-flex; align-items: center; gap: 0.35rem; font-family: var(--sans); font-size: 0.82rem; font-weight: 600; color: var(--text); text-decoration: none; padding: 0.55rem 0.7rem; border-bottom: 2px solid transparent; transition: border-color 120ms ease, color 120ms ease; } .section-nav-inner a:hover { color: var(--babson-green-dark); border-bottom-color: rgba(0, 103, 71, 0.35); } .section-nav-inner a.active { color: var(--babson-green-dark); border-bottom-color: var(--babson-green); } .section-nav-inner a.sn-appendix { color: var(--babson-green-dark); } .section-nav-inner .sn-num { font-family: var(--mono); font-size: 0.72rem; color: var(--text-muted); font-weight: 500; } .section-nav-inner a.active .sn-num, .section-nav-inner a:hover .sn-num { color: var(--babson-green-dark); } .section-nav-actions { display: flex; align-items: stretch; border-left: 1px solid var(--rule); } .section-nav-reopen, .section-nav-display { font-family: var(--sans); font-size: 0.72rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-muted); background: transparent; border: none; padding: 0.55rem 0.85rem; cursor: pointer; white-space: nowrap; align-self: stretch; transition: color 120ms ease, background 120ms ease; } .section-nav-display { padding: 0.55rem 0.7rem; border-left: 1px solid var(--rule); } .section-nav-learn { font-family: var(--sans); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--babson-green-dark); background: rgba(0, 103, 71, 0.05); text-decoration: none; padding: 0.55rem 0.85rem; align-self: stretch; display: inline-flex; align-items: center; white-space: nowrap; transition: background 120ms ease; } .section-nav-learn:hover { background: rgba(0, 103, 71, 0.12); color: var(--babson-green-dark); } @media (max-width: 720px) { .section-nav-learn { display: none; } } .section-nav-reopen:hover, .section-nav-display:hover { color: var(--babson-green-dark); background: rgba(0, 103, 71, 0.04); } .section-nav-display .aa-icon { font-family: var(--serif); font-size: 0.95rem; font-style: italic; letter-spacing: -0.02em; text-transform: none; font-weight: 500; vertical-align: -1px; } @media (max-width: 720px) { .section-nav-inner { flex-wrap: nowrap; overflow-x: auto; -webkit-overflow-scrolling: touch; } .section-nav-inner a { padding: 0.5rem 0.55rem; font-size: 0.78rem; white-space: nowrap; } .section-nav-reopen { display: none; } } /* Anchor jumps should land below the sticky nav. */ section.section { scroll-margin-top: 4rem; } /* ------------------------- inline term definitions ------------------------ */ /* Underlined inline words throughout the brief that open a small modal with a plain-language definition. Pattern: