/* =====================================================================
   About Us — hero
   ===================================================================== */

/* --hero-pad mirrors the hero's horizontal padding so the rule below the
   description can reach past it to the screen edge (see .hero__line::before) */
.hero--about {
    --hero-pad: 40px;
}

.hero--about .hero__content {
    justify-content: flex-end;
    gap: 200px;
}

/* the right inset sits on the wrapper, so the description ends exactly where
   the rule's tip ends */
.hero__top {
    margin-right: 10px;
}

.hero__note {
    max-width: 433px;
    margin-left: auto;
    margin-bottom: 45px;
    font-weight: 500;
    font-size: 16px;
    line-height: 140%;
    color: #fff;
}

.hero__line {
    position: relative;
    display: block;
    height: 6px;
}

.hero__line::before {
    content: "";
    position: absolute;
    left: calc(-1 * var(--hero-pad));
    right: 0;
    top: 50%;
    height: 1px;
    background-color: rgba(255, 255, 255, 0.5);
}

.hero__line::after {
    content: "";
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 63px;
    height: 6px;
    background-color: #fff;
}

.hero--about .hero__title {
    margin-bottom: 63px;
    font-weight: 400;
    font-size: 150px;
    line-height: 80%;
    color: #fff;
    max-width: 100%;
}

.hero__btn-big {
    min-width: 235px;
}

.hero__btn-small {
    min-width: 253px;
}

.hero--about .hero__buttons {
    gap: 18px;
}

/* round scroll-down control */
.hero__scroll {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 110px;
    height: 110px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 1000px;
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: background-color 0.3s ease, opacity 0.3s ease;
}

.hero__scroll:hover {
    opacity: 0.8;
}

/* =====================================================================
   Experience — pinned circle animation
   ===================================================================== */
/* The top padding lives on the heading, not on the section: the sticky stage
   has to start at the very top of the section, otherwise the pin only engages
   after the padding has scrolled away. */
.experience {
    padding: 0 40px 0 70px;
    background-color: #F7F7F7;
    color: #173145;
}

.experience__top {
    position: relative;
    z-index: 2;
    padding-top: 120px;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 40px;
}

.experience__title {
    font-weight: 500;
    font-size: 45px;
    line-height: 111%;
    letter-spacing: -0.03em;
    color: #344a5b;
}

.experience__title span {
    display: block;
    color: #adb2b6;
}

.experience__intro {
    display: flex;
    align-items: center;
    gap: 33px;
    flex-shrink: 0;
}

.experience__descr {
    max-width: 388px;
    font-weight: 400;
    font-size: 16px;
    line-height: 156%;
    letter-spacing: -0.03em;
    text-align: right;
    color: #647889;
}

.experience__logo {
    flex-shrink: 0;
    width: 116px;
    height: auto;
}

/* ----- the pin: its height is the scroll distance the stage stays fixed ----- */
/* The height is set from main.js: stage height + one scroll step per point,
   so the last point lands exactly at the end of the pin and there is no dead
   scrolling left underneath the circle. */
.experience__pin {
    --ring-top: 294px; /* top padding + the heading above the circle */
    /* The radius is what is left of the screen below the heading, so the arc
       ends exactly at the bottom edge: half the circle, and no empty strip
       under it while the section is pinned. */
    --ring: calc((var(--fixed-vh, 100vh) - var(--ring-top)) * 2);
    position: relative;
}

/* Cropped at the circle's centre line, so exactly the top half shows. On a
   short screen the viewport is the limit instead, so nothing is cut off. */
.experience__stage {
    position: sticky;
    top: 0;
    height: var(--fixed-vh, 100vh);
    overflow: hidden;
}

/* ----- the circle -----
   The ring box matches the arc's viewBox, so its centre is at 50%/50% and the
   arc radius is exactly half the box width. Items are placed by angle from
   that centre, which keeps dots and icons on the same radius line. */
.experience__ring {
    --arc-r: calc(var(--ring) / 2);
    --icon-r: calc(var(--arc-r) + 74px); /* 45px gap + half the icon circle */
    position: absolute;
    top: var(--ring-top);
    left: 50%;
    width: var(--ring);
    height: calc(var(--ring) * 1.00687); /* 1612 / 1601 */
    transform: translateX(-50%);
}

.experience__arc {
    width: 100%;
    height: 100%;
}

/* one item = an icon plus the dot that sits on the arc under it */
.experience__item {
    --a: 0deg;
    position: absolute;
    left: 50%;
    top: 50%;
    width: 0;
    height: 0;
}

.experience__icon,
.experience__dot {
    position: absolute;
    left: 0;
    top: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    /* the ring snaps from point to point, so the travel itself is animated */
    transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1),
                opacity 0.25s ease,
                background-color 0.25s ease,
                border-color 0.25s ease;
}

/* rotate out to the radius, then rotate back so the icon stays upright */
.experience__icon {
    width: 72px;
    height: 72px;
    margin: -36px 0 0 -36px;
    border-radius: 50%;
    background-color: #E9E9E8;
    transform: rotate(var(--a)) translateY(calc(-1 * var(--icon-r))) rotate(calc(-1 * var(--a)));
}

.experience__icon img {
    width: 33px;
    height: 33px;
    opacity: 0.45;
    transition: opacity 0.4s ease;
}

.experience__dot {
    width: 17px;
    height: 17px;
    margin: -8.5px 0 0 -8.5px;
    border-radius: 50%;
    background-color: #AAAFBB;
    transform: rotate(var(--a)) translateY(calc(-1 * var(--arc-r))) rotate(calc(-1 * var(--a)));
}

.experience__item.is-active .experience__icon {
    border-color: rgba(23, 49, 69, 0.35);
}

.experience__item.is-active .experience__icon img {
    opacity: 1;
}

.experience__item.is-active .experience__dot {
    background-color: #173145;
}

/* ----- line + text under the top point ----- */
.experience__center {
    position: absolute;
    top: calc(var(--ring-top) + 15px); /* ring top + the dot's own radius */
    left: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    transform: translateX(-50%);
}

.experience__line {
    width: 1px;
    height: 208px;
    margin-bottom: 58px;
    background-color: rgba(34, 34, 34, 0.25);
    transform-origin: top center;
    transform: scaleY(1);
    /* the delay matches the ring's travel, so the line draws itself only once
       the next point has settled at the top */
    transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1) 0.45s;
}

.experience__line.is-resetting {
    transform: scaleY(0);
    transition: none;
}

/* the slides sit in one grid cell so the block keeps the tallest one's height */
.experience__slides {
    display: grid;
    width: 360px;
    text-align: center;
}

.experience__slide {
    grid-area: 1 / 1;
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.25s ease, transform 0.25s ease;
    pointer-events: none;
}

.experience__slide.is-active {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
    /* appears together with the line, once the ring has landed */
    transition-delay: 0.45s;
}

.experience__slide-title {
    margin-bottom: 20px;
    font-weight: 400;
    font-size: 40px;
    line-height: 93%;
    letter-spacing: -0.03em;
    color: #344a5b;
}

.experience__slide-desc {
    max-width: 360px;
    font-weight: 400;
    font-size: 18px;
    line-height: 111%;
    letter-spacing: -0.03em;
    text-align: center;
    color: #adb2b6;
}

/* =====================================================================
   What We Do
   ===================================================================== */
.deliverables {
    margin: 0 15px;
}

.deliverables__inner {
    --card: 311px;
    position: relative;
    padding: 60px 45px;
    border-radius: 10px;
    overflow: hidden;
    background-image: url("../assets/img/deliverables.webp");
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    color: #fff;
}

/* keeps the numbers and the copy readable over the photo */
.deliverables__inner::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.55) 0%, rgba(0, 0, 0, 0) 60%);
    pointer-events: none;
}

.deliverables__top,
.deliverables__bottom {
    position: relative;
    z-index: 2;
}

.deliverables__top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    margin-bottom: 470px;
}

.deliverables__eyebrow {
    font-weight: 400;
    font-size: 20px;
    line-height: 88%;
    color: #fff;
}

.deliverables__logo {
    width: 116px;
    height: auto;
}

.deliverables__bottom {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 40px;
}

.deliverables__title {
    margin-bottom: 40px;
    font-weight: 400;
    font-size: 80px;
    line-height: 88%;
    color: #fff;
    max-width: 750px;
}

/* ----- cards ----- */
.deliverables__cards {
    display: flex;
    gap: 8px;
}

.deliverables__card {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    flex-shrink: 0;
    width: var(--card);
    height: var(--card);
    padding: 0 20px 35px 33px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    background: rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    color: #fff;
}

.deliverables__card--light {
    border-color: transparent;
    background: #fff;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    color: #173145;
}

.deliverables__num {
    margin-bottom: 8px;
    font-weight: 400;
    font-size: 55px;
    line-height: 100%;
}

.deliverables__label {
    font-weight: 400;
    font-size: 20px;
    line-height: 129%;
    letter-spacing: -0.03em;
}

/* ----- copy + button ----- */
.deliverables__aside {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: flex-start;
    gap: 40px;
    flex-shrink: 0;
    height: var(--card);
}

.deliverables__descr {
    max-width: 292px;
    font-weight: 500;
    font-size: 18px;
    line-height: 150%;
    color: #fff;
}

/* =====================================================================
   How We Work
   ===================================================================== */

/* The side padding sits on .how__top only: the slider keeps running to the
   right edge of the screen instead of being cut at the container. */
.how {
    padding: 150px 0 130px;
    background-color: #F7F7F7;
}

.how__top {
    padding: 0 46px;
}

.how__divider {
    display: block;
    margin-bottom: 80px;
    border-top: 1px dashed rgba(23, 49, 69, 0.25);
}

.how__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    margin-bottom: 150px;
}

.how__title {
    font-weight: 400;
    font-size: 45px;
    line-height: 1;
    letter-spacing: -0.03em;
    color: #173145;
}

.how__nav {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

/* ----- cards ----- */
.how__slider .swiper-slide {
    width: 600px;
}

.how-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 500px;
    padding-left: 87px;
    padding-top: 85px;
    border-left: 1px dashed #413421;
}

/* only the first column opens the row, so it is the one without a separator */
.how__slider .swiper-slide:first-child .how-card {
    border-left: none;
    padding-left: 0;
}

/* the outer columns are narrower than the ones in the middle */
.how__slider .swiper-slide:first-child,
.how__slider .swiper-slide:last-child {
    width: 450px;
}

.how__slider .swiper-slide:last-child .how-card__title {
    max-width: 500px;
}

.how__slider .swiper-slide:first-child {
    border: none;
    padding-left: 0;
}

.how-card__icon img {
    width: 21px;
    height: 21px;
}

.how-card__title {
    max-width: 400px;
    margin-bottom: 27px;
    font-weight: 400;
    font-size: 40px;
    line-height: 93%;
    letter-spacing: -0.03em;
    color: #344a5b;
}

.how-card__desc {
    max-width: 450px;
    font-weight: 400;
    font-size: 15px;
    line-height: 160%;
    letter-spacing: -0.03em;
    color: #adb2b6;
}

/* =====================================================================
   Five trades
   ===================================================================== */
.trades {
    margin: 0 15px;
}

/* the panel keeps its own height and pushes the two rows apart, so the gap
   between them follows the panel instead of a fixed margin */
.trades__inner {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 1100px;
    padding: 60px 65px;
    border-radius: 10px;
    overflow: hidden;
    background-image: url("../assets/img/specialists.webp");
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    color: #fff;
}

.trades__inner::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.75) 0%, rgba(0, 0, 0, 0) 55%);
    pointer-events: none;
}

.trades__top,
.trades__bottom {
    position: relative;
    z-index: 2;
}

.trades__top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.trades__eyebrow {
    font-weight: 400;
    font-size: 20px;
    line-height: 88%;
    color: #fff;
}

.trades__logo {
    width: 116px;
    height: auto;
}

.trades__bottom {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 60px;
}

.trades__title {
    max-width: 960px;
    margin-bottom: 45px;
    font-weight: 400;
    font-size: 70px;
    line-height: 1;
    letter-spacing: -0.03em;
    color: #fff;
}

.trades__main {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.trades__btn {
    min-width: 263px;
}

/* ----- the two columns on the right ----- */
.trades__cols {
    display: flex;
    gap: 53px;
    flex-shrink: 0;
}

.trades__col {
    width: 288px;
}

.trades__col + .trades__col {
    padding-left: 87px;
    border-left: 1px solid rgba(255, 255, 255, 0.35);
    width: 319px;
}

.trades__col-title {
    margin-bottom: 22px;
    font-weight: 500;
    font-size: 30px;
    line-height: 110%;
    letter-spacing: -0.03em;
    color: #fff;
}

.trades__col-desc {
    font-weight: 500;
    font-size: 16px;
    line-height: 175%;
    letter-spacing: -0.03em;
    color: #fff;
}

/* =====================================================================
   Founder
   ===================================================================== */
.founder {
    display: flex;
    /* stretch, so the aside is as tall as the card grid and its last
       paragraph can sit on the bottom edge */
    align-items: stretch;
    gap: 48px;
    padding: 140px 55px;
    background-color: #F7F7F7;
}

/* ----- left: six cells, two per row -----
   The DOM order is the mobile order; on desktop the note and the numbered
   cards are placed explicitly, so one column can be reflowed without
   touching the markup. */
.founder__grid {
    --card-h: 425px;
    flex: 1;
    min-width: 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.founder__cell--photo { grid-area: 1 / 1; }
.founder__card--two   { grid-area: 1 / 2; }
.founder__card--three { grid-area: 2 / 1; }
.founder__card--four  { grid-area: 2 / 2; }
.founder__cell--note  { grid-area: 3 / 1; }
.founder__card--five  { grid-area: 3 / 2; }

.founder__cell,
.founder__card {
    height: var(--card-h);
}

.founder__cell--photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* the note has no frame and no padding — only its text sits on the baseline */
.founder__cell--note {
    display: flex;
    align-items: flex-end;
}

.founder__cell--note p {
    font-weight: 400;
    font-size: 17px;
    line-height: 171%;
    color: rgba(52, 74, 91, 0.4);
    max-width: 340px;
}

/* ----- numbered cards ----- */
.founder__card {
    position: relative;
    display: flex;
    flex-direction: column;
    padding: 20px 20px 40px;
    border: 1px solid rgba(0, 0, 0, 0.15);
}

.founder__card-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 20px;
}

.founder__num {
    font-weight: 400;
    font-size: 16px;
    line-height: 144%;
    color: #adb2b6;
}

.founder__arrow {
    position: absolute;
    top: 42px;
    right: 42px;
    width: 12px;
    height: 12px;
}

.founder__card--two .founder__arrow {
    rotate: -180deg;
}

.founder__card--two .founder__card-text {
    max-width: 380px;
}

.founder__card--three .founder__card-text {
    max-width: 426px;
}

.founder__card--five .founder__card-text {
    max-width: 460px;
}

/* the copy is pinned to the bottom of the card */
.founder__card-text {
    margin-top: auto;
    font-weight: 500;
    font-size: 21px;
    line-height: 119%;
    color: #344a5b;
    margin-left: 20px;
}

/* the grey line at the top right of the last card */
.founder__card-note {
    max-width: 360px;
    margin: 0px 0 0 auto;
    font-weight: 400;
    font-size: 17px;
    line-height: 171%;
    text-align: right;
    color: rgba(52, 74, 91, 0.4);
    text-align: right;
    color: #9DA8B0;
}

.founder__card--five {
    padding-top: 40px;
    padding-right: 40px;
}

/* the plus in the middle of card four */
.founder__plus {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 22px;
    height: 22px;
    transform: translate(-50%, -50%);
}

.founder__plus::before,
.founder__plus::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    background-color: #173145;
    transform: translate(-50%, -50%);
}

.founder__plus::before {
    width: 100%;
    height: 1.5px;
}

.founder__plus::after {
    width: 1px;
    height: 100%;
}

/* ----- right column ----- */
.founder__aside {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    width: 529px;
    flex-shrink: 0;
}

/* greys out and fills in on scroll — see the fill-text handler in main.js */
.founder__lead {
    margin-bottom: 89px;
    font-weight: 500;
    font-size: 45px;
    line-height: 111%;
    letter-spacing: -0.03em;
    color: #344a5b;
    max-width: 501px;
}

.founder__photo {
    width: 100%;
    height: auto;
    margin-bottom: 50px;
}

.founder__name {
    margin-bottom: 11px;
    font-weight: 500;
    font-size: 35px;
    line-height: 71%;
    color: #344a5b;
}

.founder__role {
    display: block;
    font-weight: 400;
    font-size: 17px;
    line-height: 171%;
    color: rgba(30, 30, 30, 0.35);
}

.founder__desc {
    /* pushed to the bottom of the column instead of a fixed offset */
    margin-top: auto;
    padding-top: 40px;
    font-weight: 400;
    font-size: 17px;
    line-height: 165%;
    color: rgba(52, 74, 91, 0.4);
    max-width: 444px;
}

/* =====================================================================
   Career Path
   ===================================================================== */
.career {
    padding: 0 44px 190px;
    background-color: #F7F7F7;
}

.career__title {
    margin-bottom: 75px;
    font-weight: 500;
    font-size: 45px;
    line-height: 171%;
    letter-spacing: -0.03em;
    color: #344a5b;
}

/* Three rows: the years, the line, the captions. A grid keeps every caption
   under its own year; the last column is content-sized so it sits flush with
   the right edge. */
.career__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr) auto;
}

.career__year {
    grid-row: 1;
    font-weight: 500;
    font-size: 70px;
    line-height: 60%;
    letter-spacing: -0.03em;
    color: #9DA8B0;
    transition: color 0.5s ease;
}

.career__year.is-reached {
    color: #173145;
}

.career__track {
    position: relative;
    grid-row: 2;
    grid-column: 1 / -1;
    height: 1px;
    margin: 45px 0 35px;
    background-color: rgba(23, 49, 69, 0.15);
}

/* the fill runs left to right as the section scrolls through */
.career__progress {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, #173145 0%, #6d5ce7 100%);
    transform: scaleX(var(--progress, 0));
    transform-origin: left center;
    will-change: transform;
}

.career__label {
    grid-row: 3;
    font-weight: 400;
    font-size: 20px;
    line-height: 135%;
    letter-spacing: -0.03em;
    color: #9DA8B0;
    transition: color 0.5s ease;
}

/* a step stays lit once the line has passed it */
.career__label.is-reached {
    color: #173145;
}

/* =====================================================================
   Lets discuss
   ===================================================================== */
.discuss {
    margin: 0 15px;
}

.discuss__inner {
    position: relative;
    display: flex;
    align-items: stretch;
    justify-content: space-between;
    gap: 40px;
    min-height: 980px;
    padding: 40px 36px;
    border-radius: 15px;
    overflow: hidden;
    background-image: url("../assets/img/about-cta.webp");
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    color: #fff;
}

.discuss__inner::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.5) 0%, rgba(0, 0, 0, 0) 55%);
    pointer-events: none;
}

/* both columns push their top and bottom blocks apart */
.discuss__col {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.discuss__col--right {
    align-items: flex-end;
    flex-shrink: 0;
}

.discuss__descr {
    max-width: 520px;
    font-weight: 400;
    font-size: 16px;
    line-height: 138%;
    letter-spacing: -0.03em;
    color: #fff;
}

.discuss__title {
    margin-bottom: 42px;
    font-weight: 400;
    font-size: 70px;
    line-height: 94%;
    color: #fff;
}

/* the first line is set smaller than the rest of the heading */
.discuss__title span {
    display: block;
    font-size: 35px;
}

.discuss__logo {
    margin-top: 20px;
    width: 146px;
    height: auto;
}

.discuss__main {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

/* ----- squares ----- */
.discuss__squares {
    display: flex;
    gap: 8px;
}

.discuss__square {
    display: flex;
    align-items: flex-end;
    flex-shrink: 0;
    width: 315px;
    height: 224px;
    padding: 0 20px 34px 34px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    font-weight: 400;
    font-size: 30px;
    line-height: 90%;
    letter-spacing: -0.03em;
    color: #fff;
}

.discuss__square--navy {
    border: none;
    background: #173145;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
}