/* ==========================================================================
   DATA ANALYTICS & BUSINESS INTELLIGENCE PAGE — "da-" section system
   Specialisation / Analytics and Reporting / Data Analytics and BI
   Site theme: Afacad, deep navy/violet fields, brand accents
   magenta #B51BB5 · orange #F0A400 · violet #AC20BC · cyan #43D2E0.
   Its own layout language: the "newsroom of numbers" — halftone fields,
   exchange ticker tape, editorial manifesto with margin notes, oversized
   index rows, journal-style data figure, before/after signal slider,
   scoreboard with sparklines, byline stamps. No existing site component
   is reused.
   ========================================================================== */

:root {
    --da-ink: #12072e;
    --da-ink-2: #1c0b45;
    --da-violet: #4a128c;
    --da-purple: #7b2ff7;
    --da-magenta: #B51BB5;
    --da-orange: #F0A400;
    --da-cyan: #43D2E0;
    --da-paper: #f7f4fd;
    --da-line: rgba(18, 7, 46, .14);
    --da-radius: 22px;
    --da-shell: min(var(--site-width, 88%), 1240px);
    --da-ease: cubic-bezier(.22, .8, .24, 1);
}

.da-shell {
    width: var(--da-shell);
    margin-inline: auto;
}

/* ---------- shared type & controls --------------------------------------- */

.da-kicker {
    margin-bottom: 1.15rem;
    font-size: .82rem;
    font-weight: 600;
    letter-spacing: .22em;
    text-transform: uppercase;
    color: var(--da-magenta);
}

.da-kicker--light { color: var(--da-cyan); }

.da-grad {
    font-style: normal;
    background: linear-gradient(100deg, var(--da-cyan), var(--da-magenta) 55%, var(--da-orange));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.da-head {
    max-width: 780px;
    margin: 0 auto clamp(2.4rem, 5.5vh, 4rem);
    text-align: center;
}

.da-head h2 {
    margin: .65rem 0 1.05rem;
    font-size: clamp(1.95rem, 3.7vw, 3.15rem);
    line-height: 1.08;
    font-weight: 600;
    letter-spacing: -.015em;
    color: var(--da-ink);
}

.da-head--light h2 { color: #fff; }

.da-head__lead {
    font-size: clamp(1rem, 1.4vw, 1.15rem);
    line-height: 1.65;
    color: rgba(18, 7, 46, .72);
}

.da-head--light .da-head__lead { color: rgba(255, 255, 255, .82); }

.da-btn {
    display: inline-flex;
    align-items: center;
    gap: .6rem;
    padding: .95rem 1.75rem;
    border-radius: 999px;
    font-size: 1.02rem;
    font-weight: 600;
    letter-spacing: .01em;
    transition: transform .35s var(--da-ease), box-shadow .35s var(--da-ease),
        background .35s var(--da-ease), color .35s var(--da-ease), border-color .35s var(--da-ease);
}

.da-btn span { transition: transform .35s var(--da-ease); }
.da-btn:hover span { transform: translateX(5px); }

.da-btn--solid {
    color: var(--da-ink);
    background: linear-gradient(105deg, var(--da-cyan), var(--da-orange));
    box-shadow: 0 16px 40px rgba(67, 210, 224, .3);
}

.da-btn--solid:hover {
    transform: translateY(-3px);
    box-shadow: 0 22px 52px rgba(240, 164, 0, .36);
}

.da-btn--ghost {
    color: #fff;
    border: 1px solid rgba(255, 255, 255, .34);
    background: rgba(255, 255, 255, .05);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
}

.da-btn--ghost:hover {
    transform: translateY(-3px);
    border-color: rgba(255, 255, 255, .6);
    background: rgba(255, 255, 255, .12);
}

/* halftone print texture (dot screen) */
.da-hero__halftone,
.da-cta__halftone {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(rgba(255, 255, 255, .13) 1px, transparent 1.6px);
    background-size: 14px 14px;
    -webkit-mask-image: radial-gradient(120% 100% at 20% 0%, #000 10%, transparent 75%);
    mask-image: radial-gradient(120% 100% at 20% 0%, #000 10%, transparent 75%);
    pointer-events: none;
}

/* ============================================================
   1. HERO — THE FRONT PAGE
   ============================================================ */

.da-hero {
    position: relative;
    min-height: max(660px, 94svh);
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow: hidden;
    background:
        radial-gradient(110% 85% at 82% 6%, rgba(181, 27, 181, .32), transparent 55%),
        linear-gradient(158deg, var(--da-ink) 0%, var(--da-ink-2) 48%, var(--da-violet) 100%);
    isolation: isolate;
}

.da-hero__sky {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: .8;
}

.da-hero__inner {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    gap: clamp(2rem, 4.5vw, 4.2rem);
    align-items: center;
    padding: calc(var(--hdr-full, 108px) + 2.6rem) 0 clamp(3.5rem, 8vh, 6rem);
}

/* breadcrumb + eyebrow chip — site pattern on all specialisation pages */
.da-crumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .55rem;
    margin-bottom: 1.55rem;
    font-size: .88rem;
    color: rgba(255, 255, 255, .62);
}

.da-crumb a { color: rgba(255, 255, 255, .78); }
.da-crumb a:hover { color: var(--da-cyan); }
.da-crumb__sep { opacity: .45; }
.da-crumb__here { color: var(--da-orange); font-weight: 600; }

.da-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: .65rem;
    font-size: .82rem;
    font-weight: 600;
    letter-spacing: .16em;
    text-transform: uppercase;
    color: var(--da-cyan);
}

.da-eyebrow__chip {
    padding: .22rem .62rem;
    border-radius: 8px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: .78rem;
    letter-spacing: .12em;
    color: var(--da-ink);
    background: linear-gradient(115deg, var(--da-cyan), var(--da-orange));
    text-transform: none;
}

.da-hero__title {
    margin: 1.05rem 0 1.35rem;
    font-size: clamp(2.4rem, 5.2vw, 4.25rem);
    line-height: 1.05;
    font-weight: 600;
    letter-spacing: -.022em;
    color: #fff;
}

/* ---- typed headline — same "typing view" as home WHAT WE SPECIALISE IN ----- */
.da-hero__title .da-typing-line {
    display: block;
    position: relative;
    min-height: 1.15em;
    color: #fff;
}

/* invisible twin: keeps the wrapped height reserved while the line types */
.da-hero__title .da-typing-ghost {
    visibility: hidden;
}

.da-hero__title .da-typing-text {
    position: absolute;
    inset: 0;
    padding: 0 .06em .18em 0;
}

/* only "and the confidence to act." gets the gradient */
.da-hero__title .da-typing-gradient .da-typing-text {
    background: linear-gradient(100deg, var(--da-cyan), var(--da-magenta) 55%, var(--da-orange));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

.da-hero__title .da-typing-cursor {
    display: inline-block;
    width: .06em;
    height: .85em;
    margin-left: .06em;
    vertical-align: -.02em;
    background: var(--da-cyan);
    -webkit-text-fill-color: initial;
    animation: daTypingCursorBlink .7s steps(1, end) infinite;
}

@keyframes daTypingCursorBlink {
    0%, 45% { opacity: 1; }
    46%, 100% { opacity: 0; }
}

.da-hero__lead {
    max-width: 33rem;
    font-size: clamp(1.02rem, 1.5vw, 1.22rem);
    line-height: 1.66;
    color: rgba(255, 255, 255, .8);
}

.da-hero__cta {
    display: flex;
    flex-wrap: wrap;
    gap: .95rem;
    margin: 2.15rem 0 1.75rem;
}

.da-hero__tags {
    display: flex;
    flex-wrap: wrap;
    gap: .55rem;
}

.da-hero__tags li {
    padding: .42rem .95rem;
    border-radius: 999px;
    font-size: .84rem;
    letter-spacing: .02em;
    color: rgba(255, 255, 255, .82);
    border: 1px solid rgba(255, 255, 255, .18);
    background: rgba(255, 255, 255, .06);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
}

/* drifting insight pills */
.da-hero__field {
    position: relative;
    min-height: 340px;
}

.da-chip {
    position: absolute;
    display: inline-flex;
    align-items: baseline;
    gap: .5rem;
    padding: .72rem 1.15rem;
    border-radius: 16px;
    font-size: .92rem;
    color: rgba(255, 255, 255, .85);
    border: 1px solid rgba(255, 255, 255, .2);
    background: rgba(255, 255, 255, .08);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    box-shadow: 0 22px 50px rgba(5, 3, 24, .35);
    white-space: nowrap;
    animation: da-drift 7s ease-in-out infinite;
}

.da-chip b {
    font-size: 1.25rem;
    font-weight: 600;
    background: linear-gradient(100deg, var(--da-cyan), var(--da-orange));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.da-chip--a { top: 4%;  left: 6%;  animation-delay: 0s; }
.da-chip--b { top: 30%; right: 2%; animation-delay: -1.8s; }
.da-chip--c { top: 56%; left: 14%; animation-delay: -3.4s; }
.da-chip--d { top: 82%; right: 12%; animation-delay: -5.1s; }

@keyframes da-drift {
    0%, 100% { transform: translate3d(0, -7px, 0); }
    50%      { transform: translate3d(0, 9px, 0); }
}

/* ---------- exchange tape ----------------------------------------------- */

.da-tape {
    position: relative;
    z-index: 1;
    overflow: hidden;
    border-top: 1px solid rgba(255, 255, 255, .14);
    border-bottom: 1px solid rgba(255, 255, 255, .14);
    background: rgba(8, 4, 28, .55);
}

.da-tape__row {
    display: flex;
    width: max-content;
    animation: da-tape 42s linear infinite;
}

.da-tape__track {
    display: flex;
    gap: 2.75rem;
    padding: .78rem 1.375rem;
}

.da-tape__track li {
    display: inline-flex;
    align-items: center;
    gap: .55rem;
    white-space: nowrap;
    font-size: .82rem;
    letter-spacing: .13em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, .58);
}

.da-tape__track b {
    font-size: .95rem;
    letter-spacing: .04em;
    color: #fff;
}

.da-tape i { font-style: normal; font-size: .72rem; }
.da-tape .da-up { color: var(--da-cyan); }
.da-tape .da-down { color: var(--da-orange); }
.da-tape .da-flat { color: rgba(255, 255, 255, .4); }

@keyframes da-tape {
    to { transform: translateX(-50%); }
}

/* ============================================================
   2. MANIFESTO — THE EDITORIAL
   ============================================================ */

.da-manifesto {
    padding: clamp(4.5rem, 10vh, 8rem) 0 clamp(3.4rem, 9vh, 6.2rem);
    background: var(--da-paper);
}

.da-manifesto__title {
    max-width: 20ch;
    margin: 0 0 clamp(2.2rem, 5vh, 3.6rem);
    font-size: clamp(2.15rem, 4.4vw, 3.75rem);
    line-height: 1.06;
    font-weight: 600;
    letter-spacing: -.02em;
    color: var(--da-ink);
}

.da-manifesto__body {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(0, .65fr);
    gap: clamp(1.5rem, 4vw, 3.5rem);
    align-items: start;
}

.da-dropcap {
    font-size: clamp(1.18rem, 1.9vw, 1.52rem);
    line-height: 1.72;
    color: rgba(18, 7, 46, .32);
}

.da-dropcap::first-letter {
    float: left;
    margin: .08em .14em 0 0;
    font-size: 3.4em;
    line-height: .82;
    font-weight: 600;
    background: linear-gradient(120deg, var(--da-magenta), var(--da-orange));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* scroll-linked word fill (JS wraps words in .da-w) */
.da-dropcap .da-w {
    transition: color .45s ease;
}

.da-dropcap .da-w.is-lit {
    color: var(--da-ink);
}

.da-dropcap .da-w.is-key.is-lit {
    background: linear-gradient(100deg, var(--da-magenta), var(--da-orange));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* margin notes — printed marginalia */
.da-marginnotes {
    position: relative;
    height: 100%;
    padding-top: .6rem;
}

.da-marginnote {
    position: relative;
    margin: 0 0 1.35rem;
    padding-left: 1.15rem;
    font-size: .92rem;
    font-style: italic;
    line-height: 1.55;
    color: rgba(18, 7, 46, .58);
    transition: opacity .7s var(--da-ease), transform .7s var(--da-ease);
}

.da-js .da-marginnote {
    opacity: 0;
    transform: translateX(14px);
}

.da-marginnote span {
    position: absolute;
    left: 0;
    top: 0;
    color: var(--da-magenta);
    font-style: normal;
}

.da-marginnote::before {
    content: "";
    position: absolute;
    left: -1.15rem;
    top: .55em;
    width: .8rem;
    height: 1px;
    background: var(--da-magenta);
    opacity: .55;
}

.da-marginnote.is-visible { opacity: 1; transform: none; }
.da-marginnote--2 { margin-left: 1.4rem; }
.da-marginnote--3 { margin-left: .55rem; }

.da-badges {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: clamp(1rem, 2.5vw, 2rem);
    margin-top: clamp(2.6rem, 6vh, 4.2rem);
    padding-top: clamp(1.8rem, 4vh, 2.8rem);
    border-top: 1px solid var(--da-line);
}

.da-badges li {
    display: flex;
    flex-direction: column;
    gap: .35rem;
}

.da-badges b {
    font-size: clamp(1.9rem, 3.4vw, 2.9rem);
    font-weight: 600;
    letter-spacing: -.02em;
    background: linear-gradient(115deg, var(--da-violet), var(--da-magenta) 55%, var(--da-orange));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.da-badges span {
    font-size: .95rem;
    letter-spacing: .06em;
    text-transform: uppercase;
    color: rgba(18, 7, 46, .55);
}

/* ============================================================
   3. INDEX — OVERSIZED NUMBERED ROWS
   ============================================================ */

.da-index {
    padding: clamp(3.4rem, 9vh, 6.2rem) 0 clamp(4.5rem, 10vh, 7.5rem);
    background: var(--da-paper);
}

.da-rows {
    border-top: 1px solid var(--da-line);
}

.da-row {
    border-bottom: 1px solid var(--da-line);
    transition: opacity .7s var(--da-ease), transform .7s var(--da-ease);
}

/* hidden state only when JS is running — without JS everything stays visible */
.da-js .da-row {
    opacity: 0;
    transform: translateY(22px);
}

.da-row.is-visible { opacity: 1; transform: none; }

.da-row__head {
    position: relative;
    display: grid;
    grid-template-columns: 5.5rem minmax(0, 1fr) 3.5rem;
    gap: clamp(1rem, 3vw, 2.5rem);
    align-items: center;
    width: var(--da-shell);
    margin-inline: auto;
    padding: clamp(1.55rem, 3.4vh, 2.45rem) 0;
    /* overflow: hidden; */
    border: 0;
    text-align: left;
    font: inherit;
    color: var(--da-ink);
    background: none;
    cursor: pointer;
}

/* gradient sweep on hover / when open */
.da-row__head::before {
    content: "";
    position: absolute;
    inset: 0 calc((100% - var(--da-shell)) / -2);
    background: linear-gradient(100deg, var(--da-violet), var(--da-magenta) 55%, var(--da-orange));
    opacity: 0;
    transition: opacity .45s var(--da-ease);
}

.da-row__head:hover::before,
.da-row__head:focus-visible::before,
.da-row.is-open .da-row__head::before { opacity: 1; }

.da-row__no {
    position: relative;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 1.35rem;
    font-weight: 500;
    letter-spacing: .06em;
    color: var(--da-magenta);
    transition: color .35s;
}

.da-row__body {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: clamp(.85rem, 2.4vw, 2.25rem);
    align-items: baseline;
}

.da-row h3 {
    font-size: clamp(1.35rem, 2.5vw, 2.05rem);
    font-weight: 600;
    letter-spacing: -.012em;
    line-height: 1.15;
    transition: color .35s;
}

.da-row p {
    margin: 0;
    font-size: 1.02rem;
    line-height: 1.6;
    color: rgba(18, 7, 46, .62);
    transition: color .35s;
}

.da-row small {
    grid-column: 1 / -1;
    font-size: .82rem;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: rgba(18, 7, 46, .42);
    transition: color .35s;
}

.da-row__arrow {
    position: relative;
    justify-self: end;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: 1px solid var(--da-line);
    transition: transform .45s var(--da-ease), border-color .35s, background .35s;
}

/* plus icon */
.da-row__arrow::before,
.da-row__arrow::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 14px;
    height: 2px;
    background: var(--da-ink);
    transform: translate(-50%, -50%);
    transition: background .35s;
}

.da-row__arrow::after { transform: translate(-50%, -50%) rotate(90deg); }

.da-row.is-open .da-row__arrow {
    transform: rotate(45deg);
    background: #fff;
    border-color: transparent;
}

.da-row__head:hover .da-row__no,
.da-row__head:focus-visible .da-row__no,
.da-row.is-open .da-row__no { color: #fff; }
.da-row__head:hover h3,
.da-row__head:focus-visible h3,
.da-row.is-open h3 { color: #fff; }
.da-row__head:hover p,
.da-row__head:focus-visible p,
.da-row.is-open p { color: rgba(255, 255, 255, .85); }
.da-row__head:hover small,
.da-row__head:focus-visible small,
.da-row.is-open small { color: rgba(255, 255, 255, .65); }
.da-row__head:hover .da-row__arrow,
.da-row__head:focus-visible .da-row__arrow { border-color: rgba(255, 255, 255, .55); }
.da-row__head:hover .da-row__arrow::before,
.da-row__head:hover .da-row__arrow::after,
.da-row__head:focus-visible .da-row__arrow::before,
.da-row__head:focus-visible .da-row__arrow::after,
.da-row.is-open .da-row__arrow::before,
.da-row.is-open .da-row__arrow::after { background: var(--da-magenta); }

/* ---------- expandable detail panel (all content stays on-page) --------- */

.da-row__panel {
    transition: max-height .55s var(--da-ease);
}

/* collapsed only while JS is running; no-JS keeps every panel open */
.da-js .da-row__panel {
    max-height: 0;
    overflow: hidden;
}

.da-row__panel-inner {
    display: grid;
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr) minmax(0, .85fr);
    gap: clamp(1.25rem, 3vw, 2.5rem);
    width: var(--da-shell);
    margin-inline: auto;
    padding: clamp(1.35rem, 3vh, 2.15rem) 0 clamp(1.75rem, 3.8vh, 2.65rem);
    border-top: 1px solid var(--da-line);
}

/* detail columns — proper padded cards */
.da-row__col {
    padding: clamp(1.15rem, 2.2vw, 1.75rem);
    border: 1px solid var(--da-line);
    border-radius: 16px;
    background: #fff;
    box-shadow: 0 14px 34px rgba(18, 7, 46, .06);
}

.da-row__col--outcome {
    border-color: transparent;
    background: linear-gradient(155deg, rgba(123, 47, 247, .1), rgba(240, 164, 0, .12));
}

.da-row__col h4 {
    margin: 0 0 .85rem;
    font-size: .82rem;
    font-weight: 600;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: var(--da-magenta);
}

.da-row__col ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

.da-row__col li {
    position: relative;
    padding: .32rem 0 .32rem 1.35rem;
    font-size: 1rem;
    line-height: 1.55;
    color: rgba(18, 7, 46, .72);
}

.da-row__col li::before {
    content: "";
    position: absolute;
    left: 0;
    top: .82em;
    width: .55rem;
    height: 2px;
    background: linear-gradient(90deg, var(--da-magenta), var(--da-orange));
}

.da-row__chips {
    display: flex;
    flex-wrap: wrap;
    gap: .45rem;
    margin: 0;
}

.da-row__chips span {
    padding: .38rem .85rem;
    border-radius: 999px;
    border: 1px solid var(--da-line);
    font-size: .85rem;
    color: rgba(18, 7, 46, .72);
    background: #fff;
}

.da-row__outcome {
    margin: 0;
    font-size: 1.05rem;
    line-height: 1.6;
    color: rgba(18, 7, 46, .72);
}

.da-row__outcome b {
    display: block;
    margin-bottom: .35rem;
    font-size: clamp(1.75rem, 3vw, 2.35rem);
    font-weight: 600;
    letter-spacing: -.02em;
    background: linear-gradient(115deg, var(--da-violet), var(--da-magenta) 55%, var(--da-orange));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* ============================================================
   4. FIGURE — ONE DATASET, FOUR TRUTHS
   ============================================================ */

.da-figure {
    padding: clamp(3.4rem, 9vh, 6.2rem) 0;
    background:
        radial-gradient(90% 70% at 100% 0%, rgba(74, 18, 140, .55), transparent 60%),
        linear-gradient(165deg, var(--da-ink) 0%, var(--da-ink-2) 70%, var(--da-violet) 100%);
}

.da-views {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: .85rem;
    margin-bottom: clamp(1.6rem, 4vh, 2.6rem);
}

.da-view {
    display: flex;
    flex-direction: column;
    gap: .22rem;
    padding: 1.05rem 1.15rem;
    border: 1px solid rgba(255, 255, 255, .18);
    border-radius: 14px;
    text-align: left;
    color: rgba(255, 255, 255, .72);
    background: rgba(255, 255, 255, .05);
    cursor: pointer;
    transition: border-color .35s, background .35s, color .35s, transform .35s var(--da-ease);
}

.da-view b { font-size: 1.06rem; font-weight: 600; letter-spacing: .01em; }
.da-view small { font-size: .82rem; opacity: .72; }

.da-view:hover { transform: translateY(-3px); border-color: rgba(255, 255, 255, .42); }

.da-view.is-active {
    color: #fff;
    border-color: transparent;
    background: linear-gradient(115deg, rgba(67, 210, 224, .22), rgba(181, 27, 181, .32));
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .22);
}

.da-chart {
    margin: 0;
    padding: clamp(1.35rem, 3vw, 2.15rem);
    border: 1px solid rgba(255, 255, 255, .16);
    border-radius: var(--da-radius);
    background: rgba(255, 255, 255, .045);
    -webkit-backdrop-filter: blur(6px);
    backdrop-filter: blur(6px);
}

.da-chart svg {
    width: 100%;
    height: clamp(240px, 38vh, 320px);
    overflow: visible;
}

.da-chart__grid line {
    stroke: rgba(255, 255, 255, .1);
    stroke-width: 1;
}

.da-chart__axis text {
    fill: rgba(255, 255, 255, .45);
    font-size: 13px;
    letter-spacing: .08em;
}

/* bars */
.da-chart__bars rect {
    fill: rgba(67, 210, 224, .55);
    transform-origin: center bottom;
    transform-box: fill-box;
    transition: transform .6s var(--da-ease), opacity .5s;
}

.da-chart__bars rect:nth-child(2n) { fill: rgba(67, 210, 224, .38); }

.da-chart__bars.is-hidden rect { transform: scaleY(.02); opacity: 0; }

/* lines */
.da-chart__line,
.da-chart__forecast {
    fill: none;
    stroke-width: 3.5;
    stroke-linecap: round;
    stroke-linejoin: round;
    transition: stroke-dashoffset 1s var(--da-ease), opacity .5s;
}

.da-chart__line { stroke: var(--da-orange); }
.da-chart__forecast {
    stroke: var(--da-orange);
    stroke-dasharray: 10 9;
    opacity: 0;
}

.da-chart__band {
    fill: rgba(240, 164, 0, .16);
    opacity: 0;
    transition: opacity .6s;
}

.da-chart__note { opacity: 0; transition: opacity .5s; }
.da-chart__note circle { fill: var(--da-magenta); stroke: #fff; stroke-width: 2; }
.da-chart__note line { stroke: rgba(255, 255, 255, .55); stroke-dasharray: 4 5; }
.da-chart__note text { fill: rgba(255, 255, 255, .85); font-size: 14px; }

.da-chart__target { opacity: 0; transition: opacity .5s; }
.da-chart__target line { stroke: var(--da-cyan); stroke-width: 2; stroke-dasharray: 7 7; }
.da-chart__target text { fill: var(--da-cyan); font-size: 13px; letter-spacing: .12em; }

.da-chart__window {
    fill: rgba(181, 27, 181, .28);
    stroke: rgba(181, 27, 181, .75);
    stroke-width: 1.5;
    opacity: 0;
    transition: opacity .5s;
}

/* per-view states */
.da-chart.is-view-bars .da-chart__line,
.da-chart.is-view-bars .da-chart__forecast,
.da-chart.is-view-bars .da-chart__band { opacity: 0; }

.da-chart.is-view-line .da-chart__bars { opacity: 0; }

.da-chart.is-view-diag .da-chart__note { opacity: 1; }

.da-chart.is-view-pred .da-chart__forecast,
.da-chart.is-view-pred .da-chart__band { opacity: 1; }

.da-chart.is-view-presc .da-chart__target,
.da-chart.is-view-presc .da-chart__window { opacity: 1; }

.da-chart__caption {
    display: flex;
    flex-wrap: wrap;
    gap: .55rem;
    margin-top: 1.15rem;
    padding-top: 1.05rem;
    border-top: 1px solid rgba(255, 255, 255, .14);
    font-size: .98rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, .78);
}

.da-chart__caption b {
    color: var(--da-cyan);
    font-weight: 600;
    white-space: nowrap;
}

/* ============================================================
   5. STORY — BEFORE / AFTER DRAG SLIDER
   ============================================================ */

.da-story {
    padding: clamp(3.4rem, 9vh, 6.2rem) 0;
    background: var(--da-paper);
}

.da-compare {
    position: relative;
    min-height: 460px;
    border: 1px solid var(--da-line);
    border-radius: var(--da-radius);
    overflow: hidden;
    background: #fff;
    user-select: none;
}

.da-compare__side {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    padding: clamp(1.35rem, 3vw, 2.15rem);
}

.da-compare__label {
    margin: 0 0 1.05rem;
    font-size: .82rem;
    font-weight: 600;
    letter-spacing: .22em;
    text-transform: uppercase;
}

.da-compare__side--noise .da-compare__label { color: rgba(18, 7, 46, .45); }
.da-compare__side--signal .da-compare__label { color: var(--da-magenta); }

/* noise: a real spreadsheet -------------------------------------------- */

.da-sheet {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
    overflow: hidden;
    border: 1px solid rgba(18, 7, 46, .22);
    border-radius: 10px;
    background: #fff;
    box-shadow: 0 18px 40px rgba(18, 7, 46, .12);
}

.da-sheet__title {
    display: flex;
    align-items: center;
    gap: .55rem;
    padding: .38rem .7rem;
    background: #217346; /* Excel green */
    color: #fff;
    font-size: .78rem;
}

.da-sheet__logo {
    display: grid;
    place-items: center;
    width: 18px;
    height: 18px;
    border-radius: 3px;
    background: #fff;
    color: #217346;
    font-size: .72rem;
    font-weight: 700;
}

.da-sheet__file {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.da-sheet__win { letter-spacing: .28em; opacity: .85; }

.da-sheet__ribbon {
    display: flex;
    gap: 1.1rem;
    padding: .32rem .75rem;
    background: #f3f2f1;
    border-bottom: 1px solid #d6d6d6;
    font-size: .74rem;
    color: #444;
}

.da-sheet__ribbon b { font-weight: 500; }

.da-sheet__ribbon .is-on {
    color: #217346;
    font-weight: 700;
    border-bottom: 2px solid #217346;
}

.da-sheet__formula {
    display: flex;
    align-items: center;
    gap: .55rem;
    padding: .28rem .75rem;
    background: #fafafa;
    border-bottom: 1px solid #d6d6d6;
    font-size: .74rem;
    color: #333;
}

.da-sheet__ref {
    padding: .12rem .45rem;
    border: 1px solid #c8c8c8;
    border-radius: 3px;
    background: #fff;
}

.da-sheet__fx {
    font-style: italic;
    color: #777;
    border-left: 1px solid #d6d6d6;
    padding-left: .55rem;
}

.da-sheet__eq {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: #1a1a1a;
}

.da-sheet__grid {
    flex: 1;
    display: grid;
    grid-template-columns: 26px repeat(6, minmax(0, 1fr));
    grid-auto-rows: minmax(0, 1fr);
    min-height: 0;
    background: #fff;
}

.da-sheet__corner,
.da-sheet__col,
.da-sheet__rn {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: .68rem;
    color: #6b6b6b;
    background: #f0f0f0;
    border: 1px solid #d9d9d9;
}

.da-sheet__rn { color: #7a7a7a; }

.da-cell {
    display: flex;
    align-items: center;
    padding: 0 .45rem;
    border: 1px solid #e2e2e2;
    font-size: .72rem;
    color: #222;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.da-cell--head {
    background: #f7f7f7;
    font-weight: 700;
    color: #555;
    letter-spacing: .04em;
}

.da-cell--num { justify-content: flex-end; font-variant-numeric: tabular-nums; }
.da-cell--bold { font-weight: 700; }
.da-cell--muted { color: #b0b0b0; }

.da-cell--err {
    justify-content: flex-end;
    color: #c00000;
    font-weight: 600;
    background: #fff2f2;
}

.da-cell--warn {
    color: #9c6500;
    background: #fff4ce;
    font-style: italic;
}

.da-cell--mark { background: #fff8d8; }

.da-cell--sel {
    outline: 2px solid #217346;
    outline-offset: -2px;
}

.da-sheet__tabbar {
    display: flex;
    align-items: center;
    gap: .35rem;
    padding: .32rem .6rem;
    background: #f3f2f1;
    border-top: 1px solid #d6d6d6;
    font-size: .72rem;
    color: #555;
}

.da-sheet__tabbar span {
    padding: .18rem .62rem;
    border: 1px solid #d6d6d6;
    border-bottom: none;
    border-radius: 5px 5px 0 0;
    background: #ececec;
}

.da-sheet__tabbar .is-active {
    background: #fff;
    color: #217346;
    font-weight: 700;
}

.da-sheet__tabbar .da-sheet__add {
    border: none;
    background: none;
    font-size: .95rem;
    color: #777;
}

.da-sheet__note,
.da-panel__note {
    margin: 1.05rem 0 0;
    font-size: .88rem;
    letter-spacing: .04em;
    color: rgba(18, 7, 46, .55);
}

/* signal: clean dashboard */
.da-compare__side--signal {
    position: absolute;
    inset: 0 0 0 50%;
    background: linear-gradient(160deg, var(--da-ink) 0%, var(--da-ink-2) 60%, var(--da-violet) 130%);
    color: #fff;
    will-change: left;
}

.da-panel {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
    gap: 1.05rem;
    padding: 1.15rem;
    border-radius: 14px;
    border: 1px solid rgba(255, 255, 255, .18);
    background: rgba(255, 255, 255, .06);
}

.da-panel__kpis {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: .85rem;
}

.da-panel__kpis div {
    display: flex;
    flex-direction: column;
    gap: .15rem;
}

.da-panel__kpis b {
    font-size: clamp(1.25rem, 2.2vw, 1.85rem);
    font-weight: 600;
    background: linear-gradient(100deg, var(--da-cyan), var(--da-orange));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.da-panel__kpis small {
    font-size: .78rem;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, .62);
}

.da-panel__chart {
    flex: 1;
    width: 100%;
    min-height: 110px;
}

.da-panel__chart polyline {
    fill: none;
    stroke: var(--da-cyan);
    stroke-width: 3;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.da-panel__chart polygon { fill: rgba(67, 210, 224, .16); stroke: none; }

.da-panel__note { color: rgba(255, 255, 255, .62); }

/* grip */
.da-compare__grip {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 2px;
    transform: translateX(-1px);
    background: linear-gradient(180deg, var(--da-cyan), var(--da-magenta), var(--da-orange));
    cursor: ew-resize;
    touch-action: none;
}

.da-compare__handle {
    position: absolute;
    top: 50%;
    left: 50%;
    display: grid;
    place-items: center;
    width: 52px;
    height: 52px;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    font-size: .95rem;
    letter-spacing: .12em;
    color: var(--da-ink);
    background: #fff;
    box-shadow: 0 14px 34px rgba(18, 7, 46, .28);
}

/* ============================================================
   6. SCOREBOARD
   ============================================================ */

.da-score {
    padding: clamp(3.4rem, 9vh, 6.2rem) 0;
    background:
        radial-gradient(80% 65% at 0% 100%, rgba(181, 27, 181, .38), transparent 60%),
        linear-gradient(170deg, var(--da-ink) 0%, var(--da-ink-2) 100%);
}

.da-score__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    border: 1px solid rgba(255, 255, 255, .14);
    border-radius: var(--da-radius);
    overflow: hidden;
}

.da-stat {
    padding: clamp(1.55rem, 3.4vw, 2.45rem);
    border-right: 1px solid rgba(255, 255, 255, .14);
    transition: opacity .7s var(--da-ease), transform .7s var(--da-ease);
}

.da-js .da-stat {
    opacity: 0;
    transform: translateY(20px);
}

.da-stat:last-child { border-right: 0; }
.da-stat.is-visible { opacity: 1; transform: none; }

.da-stat b {
    display: block;
    font-size: clamp(2.45rem, 5vw, 4.15rem);
    font-weight: 600;
    letter-spacing: -.03em;
    line-height: 1;
    background: linear-gradient(115deg, var(--da-cyan), var(--da-orange));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.da-stat h3 {
    margin: .65rem 0 1.15rem;
    font-size: 1.02rem;
    font-weight: 500;
    letter-spacing: .04em;
    color: rgba(255, 255, 255, .72);
}

.da-spark {
    width: 100%;
    height: 36px;
    overflow: visible;
}

.da-spark polyline {
    fill: none;
    stroke: var(--da-orange);
    stroke-width: 2.5;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-dasharray: 240;
    stroke-dashoffset: 240;
    transition: stroke-dashoffset 1.3s var(--da-ease) .2s;
}

.da-stat.is-visible .da-spark polyline { stroke-dashoffset: 0; }

/* ============================================================
   7. BYLINE — STAMPS
   ============================================================ */

.da-byline {
    padding: clamp(3.4rem, 9vh, 6.2rem) 0 clamp(2.8rem, 6.5vh, 4.5rem);
    background: var(--da-paper);
}

.da-stamps {
    position: relative;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: clamp(1.15rem, 3vw, 2.25rem);
    margin: clamp(1.6rem, 4vh, 2.8rem) 0 0;
    padding: 0;
    list-style: none;
}

/* connector line runs through the roundel centres (31px = half of 62px) */
.da-stamps::before {
    content: "";
    position: absolute;
    top: 31px;
    left: 12.5%;
    right: 12.5%;
    height: 2px;
    background: var(--da-line);
}

/* progress fill with scroll — same gradient as the roundels */
.da-stamps::after {
    content: "";
    position: absolute;
    top: 31px;
    left: 12.5%;
    height: 2px;
    width: calc(75% * var(--da-progress, 0));
    background: linear-gradient(90deg, var(--da-magenta), var(--da-orange));
}

.da-stamp {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: opacity .7s var(--da-ease), transform .7s var(--da-ease);
}

.da-js .da-stamp {
    opacity: 0;
    transform: translateY(20px);
}

.da-stamp.is-visible { opacity: 1; transform: none; }

.da-stamp__round {
    display: grid;
    place-items: center;
    width: 62px;
    height: 62px;
    margin-bottom: 1.15rem;
    border: 2px solid var(--da-magenta);
    border-radius: 50%;
    background: var(--da-paper);
    transition: transform .5s var(--da-ease), background .45s, border-color .45s, box-shadow .45s;
}

.da-stamp__round b {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 1.02rem;
    font-weight: 600;
    letter-spacing: .08em;
    color: var(--da-magenta);
    transition: color .45s;
}

/* pressed-stamp angles at rest */
.da-stamp:nth-child(1) .da-stamp__round { transform: rotate(-3deg); }
.da-stamp:nth-child(2) .da-stamp__round { transform: rotate(2deg); border-color: var(--da-violet); }
.da-stamp:nth-child(2) .da-stamp__round b { color: var(--da-violet); }
.da-stamp:nth-child(3) .da-stamp__round { transform: rotate(-2deg); border-color: var(--da-orange); }
.da-stamp:nth-child(3) .da-stamp__round b { color: var(--da-orange); }
.da-stamp:nth-child(4) .da-stamp__round { transform: rotate(3deg); border-color: var(--da-cyan); }
.da-stamp:nth-child(4) .da-stamp__round b { color: var(--da-cyan); }

.da-stamp.is-visible .da-stamp__round {
    border-color: transparent;
    background: linear-gradient(115deg, var(--da-magenta), var(--da-orange));
    box-shadow: 0 14px 30px rgba(181, 27, 181, .26);
}

.da-stamp.is-visible .da-stamp__round b { color: #fff; }

.da-stamp:hover .da-stamp__round {
    transform: rotate(0deg) translateY(-3px);
}

.da-stamp h3 {
    margin: 0 0 .55rem;
    font-size: 1.22rem;
    font-weight: 600;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--da-ink);
}

.da-stamp p {
    margin: 0;
    max-width: 27ch;
    font-size: .98rem;
    line-height: 1.62;
    color: rgba(18, 7, 46, .66);
}

/* ============================================================
   8. CTA — THE PREDICTION
   ============================================================ */

.da-cta {
    padding: clamp(3.2rem, 8vh, 5.6rem) 0 clamp(4rem, 9vh, 6.4rem);
    background: var(--da-paper);
}

.da-cta__card {
    position: relative;
    overflow: hidden;
    padding: clamp(2.4rem, 6vw, 4.35rem) clamp(1.5rem, 5vw, 4rem) clamp(2.6rem, 6.5vw, 4.6rem);
    border-radius: var(--da-radius);
    text-align: center;
    color: #fff;
    background:
        radial-gradient(110% 90% at 88% 0%, rgba(123, 47, 247, .5), transparent 55%),
        linear-gradient(158deg, var(--da-ink) 0%, var(--da-ink-2) 55%, var(--da-violet) 100%);
}

.da-cta__card > * { position: relative; }

.da-cta__card h2 {
    margin: .65rem 0 1.15rem;
    font-size: clamp(1.95rem, 3.9vw, 3.25rem);
    line-height: 1.08;
    font-weight: 600;
    letter-spacing: -.015em;
}

.da-cta__lead {
    max-width: 34rem;
    margin: 0 auto;
    font-size: clamp(1rem, 1.4vw, 1.15rem);
    line-height: 1.65;
    color: rgba(255, 255, 255, .82);
}

.da-cta__actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: .95rem;
    margin: 2.15rem 0 1.35rem;
}

.da-cta__fine {
    margin: 0;
    font-size: .86rem;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, .55);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 1180px) {
    .da-hero__inner {
        grid-template-columns: 1fr;
        padding: calc(var(--hdr-full, 108px) + 1.75rem) 0 clamp(3rem, 7vh, 5rem);
    }

    .da-hero__field {
        min-height: 220px;
        max-width: 720px;
    }

    .da-chip--a { top: 0; left: 0; }
    .da-chip--b { top: 22%; right: 0; }
    .da-chip--c { top: 52%; left: 8%; }
    .da-chip--d { top: 78%; right: 6%; }

    .da-views { grid-template-columns: repeat(2, 1fr); }

    .da-score__grid { grid-template-columns: repeat(2, 1fr); }
    .da-stat:nth-child(2n) { border-right: 0; }
    .da-stat:nth-child(-n+2) { border-bottom: 1px solid rgba(255, 255, 255, .14); }

    .da-stamps { grid-template-columns: repeat(2, 1fr); gap: 2.25rem 1.5rem; }
    .da-stamps::before, .da-stamps::after { display: none; }
}

@media (max-width: 900px) {
    .da-manifesto__body { grid-template-columns: 1fr; }
    .da-marginnotes { padding-top: 0; }
    .da-marginnote--2 { margin-left: 1.4rem; }

    .da-row__body { grid-template-columns: 1fr; }
    .da-row small { grid-column: auto; }

    .da-row__panel-inner {
        grid-template-columns: 1fr;
        gap: 1.35rem;
    }
}

@media (max-width: 768px) {
    .da-hero { min-height: 0; }
    .da-hero__inner { padding: calc(var(--hdr-full, 90px) + 1.1rem) 0 clamp(2.5rem, 6vh, 4rem); }
    .da-hero__title { font-size: clamp(2.25rem, 9.4vw, 3.15rem); }

    .da-hero__field { min-height: 200px; }
    .da-chip { font-size: .82rem; padding: .55rem .9rem; }
    .da-chip b { font-size: 1.05rem; }

    .da-badges { grid-template-columns: 1fr; gap: 1.15rem; }

    .da-row__head {
        grid-template-columns: 3.25rem minmax(0, 1fr) 2.25rem;
        gap: .85rem;
    }

    .da-row__no { font-size: 1.05rem; }
    .da-row__arrow { width: 34px; height: 34px; }

    .da-views { grid-template-columns: 1fr 1fr; gap: .62rem; }
    .da-view { padding: .85rem .95rem; }

    .da-compare { min-height: 0; }
    .da-compare__side--noise { display: none; }
    .da-compare__side--signal {
        position: relative;
        inset: auto;
        left: auto !important;
        clip-path: none !important;
    }
    .da-compare__grip { display: none; }

    .da-score__grid { grid-template-columns: 1fr; }
    .da-stat { border-right: 0; border-bottom: 1px solid rgba(255, 255, 255, .14); }
    .da-stat:last-child { border-bottom: 0; }

    .da-stamps { grid-template-columns: 1fr; }

    .da-btn { padding: .85rem 1.45rem; font-size: .98rem; }
}

/* ============================================================
   REDUCED MOTION
   ============================================================ */

@media (prefers-reduced-motion: reduce) {
    .da-hero__sky,
    .da-tape__row,
    .da-chip { animation: none !important; }

    .da-hero__title .da-typing-cursor { animation: none; opacity: 1; }

    .da-hero__title .da-typing-text { transition: none; }

    .da-row,
    .da-stat,
    .da-stamp,
    .da-marginnote {
        opacity: 1;
        transform: none;
        transition: none;
    }

    .da-spark polyline { stroke-dashoffset: 0; transition: none; }
    .da-chart__bars rect,
    .da-chart__line,
    .da-chart__forecast { transition: none; }
}