:root {
    --ink: #071a40;
    --ink-soft: #173764;
    --ink-deep: #030d26;
    --cobalt: #0b56ff;
    --blue: #2f7cff;
    --cyan: #72dcff;
    --violet: #7167ff;
    --ice: #edf7ff;
    --paper: #f9fcff;
    --white: #ffffff;
    --muted: #58708f;
    --line: rgba(7, 26, 64, .14);
    --serif: Georgia, "Times New Roman", serif;
    --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
    --shell: min(100% - 64px, 1320px);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body {
    margin: 0;
    overflow-x: hidden;
    color: var(--ink);
    background: var(--paper);
    font-family: var(--sans);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}
main { overflow: clip; }
img { display: block; max-width: 100%; }
a { color: inherit; }
button, input, select, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid var(--cyan); outline-offset: 4px; }
.shell { width: var(--shell); margin-inline: auto; }
.section { position: relative; padding: 132px 0; }
.section-dark { color: var(--white); background: var(--ink-deep); }
.visually-hidden { position: absolute !important; width: 1px !important; height: 1px !important; padding: 0 !important; overflow: hidden !important; clip: rect(0, 0, 0, 0) !important; white-space: nowrap !important; border: 0 !important; }

.skip-link {
    position: fixed;
    z-index: 1000;
    top: 12px;
    left: 12px;
    padding: 10px 14px;
    color: var(--white);
    background: var(--ink);
    transform: translateY(-150%);
}
.skip-link:focus { transform: none; }

.site-header {
    position: sticky;
    z-index: 100;
    top: 0;
    border-bottom: 1px solid rgba(7, 26, 64, .08);
    background: rgba(244, 250, 255, .84);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
}
.header-inner { display: flex; min-height: 78px; align-items: center; justify-content: space-between; gap: 32px; }
.brand { display: inline-flex; align-items: center; gap: 11px; color: var(--ink); font-family: var(--serif); font-size: 25px; font-weight: 700; line-height: 1; text-decoration: none; }
.brand-mark { width: 42px; height: 30px; color: var(--cobalt); }
.site-nav { display: flex; align-items: center; gap: 34px; }
.site-nav a { color: var(--ink-soft); font-size: 13px; font-weight: 700; text-decoration: none; transition: color .2s ease, transform .2s ease; }
.site-nav a:hover { color: var(--cobalt); transform: translateY(-1px); }
.site-nav .nav-contact { padding: 9px 16px; border: 1px solid rgba(7, 26, 64, .2); border-radius: 999px; }
.nav-toggle { display: none; border: 0; color: var(--ink); background: transparent; }

.eyebrow {
    display: flex;
    align-items: center;
    gap: 11px;
    margin: 0 0 24px;
    color: rgba(255, 255, 255, .64);
    font-family: var(--mono);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: .15em;
    text-transform: uppercase;
}
.eyebrow span { width: 28px; height: 2px; border-radius: 9px; background: var(--cyan); }
.eyebrow-dark { color: var(--muted); }
.eyebrow-dark span { background: var(--cobalt); }

.hero-liquid {
    position: relative;
    min-height: 790px;
    padding: 84px 0 150px;
    overflow: hidden;
    background:
        radial-gradient(circle at 13% 15%, rgba(114, 220, 255, .34), transparent 25%),
        linear-gradient(140deg, #f8fcff 0%, var(--ice) 52%, #e5f2ff 100%);
}
.hero-aurora { position: absolute; inset: 0; pointer-events: none; }
.aurora { position: absolute; display: block; border-radius: 50%; filter: blur(2px); opacity: .72; }
.aurora-one { top: -210px; right: 4%; width: 520px; height: 520px; background: radial-gradient(circle at 40% 45%, rgba(113, 103, 255, .35), rgba(114, 220, 255, .06) 67%, transparent 70%); animation: aurora-one-drift 16s ease-in-out infinite alternate; }
.aurora-two { right: -170px; bottom: 28px; width: 520px; height: 330px; border-radius: 45% 55% 38% 62%; background: linear-gradient(145deg, rgba(11, 86, 255, .42), rgba(114, 220, 255, .08)); transform: rotate(-12deg); animation: aurora-two-drift 19s ease-in-out infinite alternate; }
.aurora-three { bottom: 72px; left: -190px; width: 590px; height: 190px; border: 1px solid rgba(11, 86, 255, .18); border-radius: 50%; transform: rotate(7deg); }
@keyframes aurora-one-drift { to { transform: translate3d(-28px, 24px, 0) scale(1.05); } }
@keyframes aurora-two-drift { to { transform: translate3d(-35px, -22px, 0) rotate(-7deg) scale(1.04); } }
.hero-grid { position: relative; z-index: 2; display: grid; grid-template-columns: minmax(0, .9fr) minmax(560px, 1.1fr); gap: 54px; align-items: center; }
.hero-copy { position: relative; z-index: 8; padding-bottom: 18px; }
.hero h1, .section-heading h2, .concepts-intro h2, .method h2, .contact h2, .legal-hero h1, .error-page h1 {
    margin: 0;
    font-family: var(--serif);
    font-weight: 400;
    line-height: .92;
    letter-spacing: -.06em;
}
.hero h1 { max-width: 660px; font-size: clamp(70px, 6.8vw, 106px); }
.hero h1 em, .section-heading h2 em, .concepts-intro h2 em, .method h2 em, .contact h2 em { color: var(--cobalt); font-weight: 400; }
.hero-lead { max-width: 600px; margin: 30px 0 0; color: var(--muted); font-size: 18px; line-height: 1.65; }
.hero-actions { display: flex; align-items: center; gap: 30px; margin-top: 36px; }
.button {
    display: inline-flex;
    min-height: 54px;
    align-items: center;
    justify-content: center;
    gap: 28px;
    padding: 12px 22px;
    border: 1px solid transparent;
    border-radius: 11px;
    font-size: 13px;
    font-weight: 800;
    text-decoration: none;
    cursor: pointer;
    box-shadow: 0 12px 28px rgba(11, 86, 255, .16);
    transition: transform .25s ease, box-shadow .25s ease, background .25s ease;
}
.button:hover { transform: translateY(-3px); box-shadow: 0 16px 35px rgba(11, 86, 255, .24); }
.button-primary, .button-accent { color: var(--white); background: var(--cobalt); }
.button-primary:hover, .button-accent:hover { background: #0049e7; }
.button-light { color: var(--ink); background: var(--white); }
.button-light:hover { background: var(--ice); }
.button:disabled { opacity: .62; cursor: wait; transform: none; }
.text-link { display: inline-flex; align-items: center; gap: 12px; padding-bottom: 2px; border-bottom: 1px solid currentColor; color: var(--ink); font-size: 13px; font-weight: 750; text-decoration: none; }
.text-link span { transition: transform .22s ease; }
.text-link:hover span { transform: translate(4px, -3px); }
.hero-meta { display: flex; gap: 36px; margin: 45px 0 0; padding: 0; list-style: none; }
.hero-meta li { display: grid; grid-template-columns: auto 1fr; gap: 10px; align-items: center; }
.hero-meta strong { color: var(--cobalt); font-family: var(--serif); font-size: 28px; font-weight: 400; }
.hero-meta span { max-width: 90px; color: var(--muted); font-family: var(--mono); font-size: 8px; line-height: 1.35; letter-spacing: .09em; text-transform: uppercase; }

.hero-collage { position: relative; min-height: 585px; perspective: 1100px; }
.collage-card {
    position: absolute;
    width: 56%;
    margin: 0;
    overflow: hidden;
    border: 1px solid rgba(7, 26, 64, .15);
    border-radius: 18px;
    background: var(--white);
    box-shadow: 0 24px 50px rgba(20, 59, 111, .2);
    transition: transform .45s cubic-bezier(.2, .8, .2, 1), box-shadow .35s ease;
}
.collage-card:hover { z-index: 12; box-shadow: 0 32px 64px rgba(20, 59, 111, .28); }
.collage-card img { width: 100%; height: auto; aspect-ratio: 16 / 10; object-fit: cover; object-position: top; }
.collage-card figcaption { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 9px 12px; color: var(--ink); font-family: var(--mono); font-size: 8px; font-weight: 700; letter-spacing: .07em; text-transform: uppercase; }
.collage-card figcaption span { color: var(--cobalt); }
.collage-card-01 { z-index: 5; top: 58px; left: -10px; transform: rotate(-5deg); }
.collage-card-01:hover { transform: rotate(-2deg) translateY(-8px); }
.collage-card-02 { z-index: 4; top: 12px; right: -18px; transform: rotate(4deg); }
.collage-card-02:hover { transform: rotate(1deg) translateY(-8px); }
.collage-card-03 { z-index: 7; bottom: 20px; left: 25px; transform: rotate(3deg); }
.collage-card-03:hover { transform: rotate(1deg) translateY(-8px); }
.collage-card-04 { z-index: 6; right: -8px; bottom: 2px; transform: rotate(-4deg); }
.collage-card-04:hover { transform: rotate(-1deg) translateY(-8px); }
.collage-note { position: absolute; z-index: 15; top: 49%; left: 45%; padding: 9px 13px; border: 1px solid rgba(255, 255, 255, .5); border-radius: 999px; color: var(--white); background: rgba(7, 26, 64, .8); font-family: var(--mono); font-size: 8px; letter-spacing: .12em; text-transform: uppercase; transform: rotate(-8deg); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); }
.hero-wave { position: absolute; z-index: 1; right: 0; bottom: -1px; left: 0; height: 175px; }
.hero-wave svg { width: 100%; height: 100%; }
.hero-wave path { fill: var(--paper); }

.projects { padding-top: 90px; background: var(--paper); }
.section-heading { display: grid; grid-template-columns: 1.12fr .88fr; gap: 110px; align-items: end; margin-bottom: 120px; }
.section-heading h2, .concepts-intro h2, .method h2, .contact h2 { font-size: clamp(54px, 5.7vw, 84px); }
.section-heading > p { max-width: 490px; margin: 0 0 5px; color: var(--muted); font-size: 17px; }
.section-heading h2 em { color: var(--violet); }
.project-stream { display: grid; gap: 164px; }
.project-story { position: relative; display: grid; grid-template-columns: minmax(0, 1.24fr) minmax(320px, .76fr); gap: 94px; align-items: center; }
.project-story:nth-child(even) { grid-template-columns: minmax(320px, .76fr) minmax(0, 1.24fr); }
.project-story:nth-child(even) .project-visual { grid-column: 2; grid-row: 1; }
.project-story:nth-child(even) .project-copy { grid-column: 1; grid-row: 1; }
.project-visual { position: relative; padding: 48px 42px 36px; }
.project-visual::before { position: absolute; inset: 0; border-radius: 40% 60% 52% 48% / 55% 42% 58% 45%; background: #dff2ff; content: ""; transform: rotate(-3deg); }
.project-story:nth-child(even) .project-visual::before { border-radius: 60% 40% 44% 56% / 43% 58% 42% 57%; transform: rotate(3deg); }
.project-astral .project-visual::before { background: #e9e5ff; }
.project-tees .project-visual::before { background: #def6ff; }
.project-life .project-visual::before { background: #dceaff; }
.project-index { position: absolute; z-index: 0; top: -54px; left: -5px; color: rgba(11, 86, 255, .1); font-family: var(--serif); font-size: 138px; line-height: 1; }
.project-story:nth-child(even) .project-index { right: 0; left: auto; }
.project-frame { position: relative; z-index: 2; display: flex; aspect-ratio: 16 / 10; flex-direction: column; overflow: hidden; border: 1px solid rgba(7, 26, 64, .14); border-radius: 18px; background: var(--white); box-shadow: 0 28px 65px rgba(22, 57, 104, .22); text-decoration: none; transform: rotate(-1.4deg); transition: transform .35s ease, box-shadow .35s ease; }
.project-story:nth-child(even) .project-frame { transform: rotate(1.4deg); }
.project-frame:hover { transform: rotate(0) translateY(-7px); box-shadow: 0 36px 75px rgba(22, 57, 104, .28); }
.frame-bar { display: flex; flex: 0 0 34px; align-items: center; gap: 6px; padding: 0 12px; border-bottom: 1px solid rgba(7, 26, 64, .1); background: rgba(255, 255, 255, .96); }
.frame-bar i { width: 7px; height: 7px; border-radius: 50%; background: #cbd9e7; }
.frame-bar i:first-child { background: var(--cobalt); }
.frame-bar b { flex: 1; overflow: hidden; margin-left: 7px; color: var(--muted); font-family: var(--mono); font-size: 8px; font-weight: 500; text-align: center; text-overflow: ellipsis; white-space: nowrap; }
.project-frame img { width: 100%; min-height: 0; flex: 1 1 auto; object-fit: cover; object-position: top; }
.capture-note { position: relative; z-index: 3; display: block; margin: 20px 0 0 8px; color: var(--muted); font-family: var(--mono); font-size: 8px; letter-spacing: .1em; text-transform: uppercase; }
.capture-note::before { display: inline-block; width: 18px; height: 1px; margin: 0 8px 3px 0; background: currentColor; content: ""; }
.project-copy { position: relative; z-index: 3; }
.project-type { color: var(--cobalt); font-family: var(--mono); font-size: 9px; font-weight: 700; letter-spacing: .11em; text-transform: uppercase; }
.project-copy h3 { max-width: 560px; margin: 16px 0 25px; font-family: var(--serif); font-size: clamp(49px, 5.1vw, 76px); font-weight: 400; line-height: .94; letter-spacing: -.055em; }
.project-concept { max-width: 500px; margin: 0 0 20px; color: var(--ink-soft); font-family: var(--serif); font-size: 26px; line-height: 1.25; }
.project-description { max-width: 480px; margin: 0 0 30px; color: var(--muted); font-size: 15px; }

.principles { margin-top: 140px; overflow: hidden; border-radius: 8% 8% 0 0 / 3% 3% 0 0; background: radial-gradient(circle at 70% 15%, #173a83 0%, var(--ink) 42%, var(--ink-deep) 100%); }
.concept-glow { position: absolute; border-radius: 50%; pointer-events: none; }
.concept-glow-one { top: -230px; right: -160px; width: 580px; height: 580px; border: 1px solid rgba(114, 220, 255, .3); box-shadow: inset 0 0 130px rgba(11, 86, 255, .18); }
.concept-glow-two { bottom: -240px; left: -100px; width: 510px; height: 510px; background: radial-gradient(circle, rgba(113, 103, 255, .19), transparent 67%); }
.concepts-layout { position: relative; z-index: 2; display: grid; grid-template-columns: .72fr 1.28fr; gap: 90px; align-items: center; }
.concepts-intro { align-self: start; padding-top: 64px; }
.concepts-intro h2 em { color: var(--cyan); }
.concepts-intro > p:last-child { max-width: 450px; margin: 32px 0 0; color: rgba(255, 255, 255, .62); font-size: 17px; }
.concept-cloud { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; align-items: start; }
.concept-card { min-height: 315px; padding: 34px; border: 1px solid rgba(255, 255, 255, .17); border-radius: 48px 100px 48px 72px; background: rgba(255, 255, 255, .075); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px); }
.concept-card-01 { transform: translateY(28px) rotate(-2deg); }
.concept-card-02 { border-radius: 88px 40px 74px 48px; transform: rotate(2deg); }
.concept-card-03 { border-radius: 42px 80px 54px 105px; transform: translateY(24px) rotate(1.5deg); }
.concept-card-04 { border-radius: 85px 48px 105px 52px; transform: translateY(-8px) rotate(-1.5deg); }
.concept-card > span { color: var(--cyan); font-family: var(--mono); font-size: 10px; }
.concept-card h3 { margin: 24px 0 14px; font-family: var(--serif); font-size: 31px; font-weight: 400; line-height: 1.08; }
.concept-card p { margin: 0; color: rgba(255, 255, 255, .65); font-size: 14px; }
.concept-card ul { display: flex; flex-wrap: wrap; gap: 7px; margin: 25px 0 0; padding: 0; list-style: none; }
.concept-card li { padding: 5px 10px; border: 1px solid rgba(114, 220, 255, .26); border-radius: 999px; color: #bfefff; font-family: var(--mono); font-size: 8px; letter-spacing: .06em; text-transform: uppercase; }

.method { background: linear-gradient(180deg, var(--paper), var(--ice)); }
.method-grid { display: grid; grid-template-columns: .82fr 1.18fr; gap: 130px; }
.method-intro { position: sticky; top: 124px; align-self: start; }
.method h2 em { color: var(--violet); }
.method-intro > p:last-child { max-width: 440px; margin: 30px 0 0; color: var(--muted); font-size: 17px; }
.method-steps { position: relative; margin: 0; padding: 0; list-style: none; }
.method-steps::before { position: absolute; top: 18px; bottom: 18px; left: 28px; width: 1px; background: linear-gradient(var(--cobalt), var(--cyan), var(--violet)); content: ""; }
.method-steps li { position: relative; display: grid; grid-template-columns: 58px 1fr; gap: 30px; min-height: 190px; padding: 0 0 62px; }
.method-steps li:last-child { min-height: 0; padding-bottom: 0; }
.method-steps > li > span { position: relative; z-index: 2; display: grid; width: 58px; height: 58px; place-items: center; border: 1px solid rgba(11, 86, 255, .2); border-radius: 50%; color: var(--cobalt); background: var(--paper); font-family: var(--mono); font-size: 10px; box-shadow: 0 8px 24px rgba(11, 86, 255, .1); }
.method-steps h3 { margin: -8px 0 9px; font-family: var(--serif); font-size: 45px; font-weight: 400; line-height: 1; }
.method-steps p { max-width: 510px; margin: 0; color: var(--muted); }

.contact { padding: 68px 0 150px; background: linear-gradient(180deg, var(--ice), #e8f4ff); }
.contact-panel { position: relative; padding: 86px clamp(38px, 7vw, 104px) 98px; overflow: hidden; border-radius: 62px 170px 62px 62px; color: var(--white); background: radial-gradient(circle at 93% 2%, #245ccc 0%, transparent 31%), radial-gradient(circle at 4% 98%, rgba(113, 103, 255, .28), transparent 29%), linear-gradient(145deg, var(--ink-deep), var(--ink)); box-shadow: 0 35px 90px rgba(7, 26, 64, .19); }
.contact-panel::before { position: absolute; right: -110px; bottom: -230px; width: 520px; height: 520px; border: 1px solid rgba(114, 220, 255, .24); border-radius: 50%; content: ""; }
.contact-panel::after { position: absolute; top: 235px; left: -80px; width: 220px; height: 470px; border: 1px solid rgba(114, 220, 255, .13); border-radius: 50%; content: ""; transform: rotate(-22deg); }
.contact-copy, .contact-action, .contact-form { position: relative; z-index: 2; }
.contact-copy { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(300px, .92fr); gap: 90px; align-items: end; max-width: 1050px; margin: 0 auto 58px; }
.contact h2 { font-size: clamp(62px, 6vw, 90px); }
.contact h2 em { color: var(--cyan); }
.contact-intro { padding: 0 0 6px 26px; border-left: 1px solid rgba(114, 220, 255, .38); }
.contact-intro p { margin: 0; color: rgba(255, 255, 255, .72); font-size: 16px; }
.contact-intro p + p { margin-top: 14px; color: rgba(255, 255, 255, .48); font-family: var(--mono); font-size: 9px; letter-spacing: .04em; }
.contact-action { display: flex; align-items: center; justify-content: center; flex-direction: column; gap: 18px; }
.contact-action .button { min-width: 220px; }
.contact-feedback { min-height: 22px; margin: 0; color: rgba(255, 255, 255, .76); font-size: 12px; text-align: center; }
.contact-feedback.is-success { color: #8ff0bf; font-weight: 700; }
.contact-feedback.is-error { color: #ffb2a8; font-weight: 700; }
.contact-dialog { width: min(960px, calc(100% - 24px)); max-width: none; max-height: calc(100dvh - 24px); padding: 0; overflow: auto; overscroll-behavior: contain; border: 0; border-radius: 8px 52px 10px 10px; color: var(--ink); background: transparent; box-shadow: 0 35px 100px rgba(1, 9, 29, .5); }
.contact-dialog::backdrop { background: rgba(3, 13, 38, .76); -webkit-backdrop-filter: blur(7px); backdrop-filter: blur(7px); }
.contact-dialog-shell { position: relative; min-height: 180px; }
.contact-dialog-close { position: absolute; z-index: 6; top: 18px; left: 18px; margin: 0; }
.contact-dialog-close button { display: grid; width: 42px; height: 42px; padding: 0; place-items: center; border: 1px solid rgba(7, 26, 64, .2); border-radius: 50%; color: var(--ink); background: rgba(255, 255, 255, .9); font-size: 25px; line-height: 1; cursor: pointer; box-shadow: 0 8px 22px rgba(7, 26, 64, .13); }
.contact-form-host { min-height: 180px; }
.contact-dialog-status { display: grid; min-height: 180px; margin: 0; padding: 40px; place-items: center; border-radius: 8px 58px 10px 10px; color: var(--muted); background: var(--paper); font-family: var(--mono); font-size: 10px; letter-spacing: .05em; text-align: center; }
.contact-dialog .contact-form { width: 100%; margin: 0; }
.contact-form { max-width: 920px; margin: 0 auto; padding: 30px clamp(28px, 4vw, 48px) 24px; border: 1px solid rgba(255, 255, 255, .8); border-radius: 5px 52px 7px 7px; color: var(--ink); background: linear-gradient(150deg, #fff 0%, #f9fcff 58%, #edf7ff 100%); box-shadow: 0 34px 75px rgba(1, 9, 29, .32), inset 0 0 0 1px rgba(7, 26, 64, .04); }
.contact-form::before { position: absolute; z-index: 1; top: 18px; right: 24px; display: grid; width: 48px; height: 48px; place-items: center; border: 1px solid rgba(11, 86, 255, .32); border-radius: 50%; color: var(--cobalt); font-family: var(--mono); font-size: 9px; font-weight: 800; letter-spacing: .08em; content: "N9"; transform: rotate(9deg); }
.contact-form::after { position: absolute; top: 74px; right: 0; left: 0; height: 1px; background: linear-gradient(90deg, transparent, rgba(7, 26, 64, .13) 8%, rgba(7, 26, 64, .13) 92%, transparent); content: ""; }
.letter-meta { display: flex; min-height: 30px; align-items: flex-start; justify-content: space-between; gap: 60px; padding-right: 65px; color: var(--muted); font-family: var(--mono); font-size: 7px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.letter-opening { padding: 28px 0 24px; }
.letter-salutation { margin: 0 0 18px; font-family: var(--serif); font-size: 40px; line-height: 1; }
.letter-sentence { display: grid; align-items: end; gap: 12px; }
.letter-sentence label, .letter-topics legend, .letter-message label { color: var(--ink-soft); font-family: var(--serif); font-size: 20px; line-height: 1.25; }
.letter-sentence label span, .letter-topics legend span, .letter-message label span, .privacy-check b { color: var(--cobalt); }
.letter-sentence input { width: 100%; min-width: 0; padding: 5px 3px 7px; border: 0; border-bottom: 1px solid rgba(7, 26, 64, .35); border-radius: 0; color: var(--ink); background: transparent; transition: border-color .2s ease, box-shadow .2s ease; }
.letter-sentence input::placeholder { color: rgba(23, 55, 100, .34); }
.letter-sentence input:focus { outline: 0; border-color: var(--cobalt); box-shadow: 0 2px 0 rgba(11, 86, 255, .12); }
.letter-identity { grid-template-columns: auto minmax(130px, .72fr) auto minmax(190px, 1fr); }
.letter-topics { min-width: 0; margin: 0; padding: 0 0 24px; border: 0; }
.letter-topics legend { margin-bottom: 12px; padding: 0; }
.topic-options { display: flex; flex-wrap: wrap; gap: 7px; }
.topic-chip { position: relative; cursor: pointer; }
.topic-chip input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.topic-chip span { display: block; padding: 7px 12px; border: 1px solid rgba(7, 26, 64, .16); border-radius: 999px; color: var(--ink-soft); background: rgba(237, 247, 255, .58); font-family: var(--mono); font-size: 8px; font-weight: 700; letter-spacing: .03em; transition: color .2s ease, border-color .2s ease, background .2s ease, transform .2s ease; }
.topic-chip:hover span { border-color: rgba(11, 86, 255, .45); transform: translateY(-2px); }
.topic-chip input:checked + span { border-color: var(--cobalt); color: var(--white); background: var(--cobalt); box-shadow: 0 8px 18px rgba(11, 86, 255, .2); }
.topic-chip input:focus-visible { outline: 0; }
.topic-chip input:focus-visible + span { outline: 3px solid var(--cyan); outline-offset: 3px; }
.letter-message label { display: block; margin-bottom: 8px; }
.letter-message textarea { width: 100%; min-height: 120px; padding: 8px 4px; border: 0; border-radius: 0; color: var(--ink); background-color: transparent; background-image: repeating-linear-gradient(transparent 0, transparent 27px, rgba(11, 86, 255, .13) 28px); line-height: 28px; resize: vertical; transition: background-color .2s ease; }
.letter-message textarea::placeholder { color: rgba(23, 55, 100, .34); }
.letter-message textarea:focus { outline: 0; background-color: rgba(114, 220, 255, .06); }
.letter-closing { display: grid; grid-template-columns: .6fr 1.4fr; gap: 36px; align-items: end; padding-top: 20px; }
.letter-closing > p { margin: 0; color: var(--ink-soft); font-family: var(--serif); font-size: 14px; line-height: 1.35; }
.letter-closing > p em { color: var(--cobalt); font-size: 21px; font-weight: 400; }
.privacy-check { display: flex; align-items: flex-start; gap: 10px; color: var(--muted); font-size: 11px; cursor: pointer; }
.privacy-check input { flex: 0 0 auto; width: 17px; height: 17px; margin-top: 2px; accent-color: var(--cobalt); }
.privacy-check a { text-underline-offset: 3px; }
.form-footer { display: flex; min-height: 54px; align-items: center; justify-content: flex-end; gap: 20px; margin-top: 16px; padding-top: 14px; border-top: 1px solid rgba(7, 26, 64, .12); }
.form-status { flex: 1; margin: 0; font-size: 11px; line-height: 1.4; }
.form-status:empty { display: none; }
.form-status.is-success { color: #087342; font-weight: 700; }
.form-status.is-error { color: #a52f22; font-weight: 700; }
.honeypot { position: absolute !important; width: 1px !important; height: 1px !important; overflow: hidden !important; clip: rect(1px, 1px, 1px, 1px) !important; white-space: nowrap !important; }

.legal-hero { padding: 118px 0 104px; background: radial-gradient(circle at 80% 10%, #173a83, var(--ink-deep) 54%); }
.legal-hero-inner { display: grid; grid-template-columns: 1fr auto; gap: 40px; align-items: end; }
.legal-hero .eyebrow { grid-column: 1 / -1; margin-bottom: 4px; }
.legal-hero h1 { font-size: clamp(64px, 8vw, 110px); }
.legal-hero-inner > p:last-child { margin: 0 0 8px; color: rgba(255, 255, 255, .56); font-family: var(--mono); font-size: 9px; letter-spacing: .07em; }
.legal-section { padding: 100px 0 140px; background: var(--paper); }
.legal-grid { display: grid; grid-template-columns: 230px minmax(0, 780px); gap: 110px; align-items: start; }
.legal-index { position: sticky; top: 112px; display: grid; gap: 9px; padding: 24px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.legal-index span { margin-bottom: 8px; color: var(--muted); font-family: var(--mono); font-size: 9px; letter-spacing: .13em; text-transform: uppercase; }
.legal-index a { color: var(--muted); font-size: 12px; text-decoration: none; }
.legal-index a:hover { color: var(--cobalt); }
.legal-document section { scroll-margin-top: 105px; padding: 0 0 54px; margin: 0 0 54px; border-bottom: 1px solid var(--line); }
.legal-document section:last-child { margin-bottom: 0; }
.legal-number { color: var(--cobalt); font-family: var(--mono); font-size: 10px; letter-spacing: .08em; }
.legal-document h2 { margin: 8px 0 22px; font-family: var(--serif); font-size: 39px; font-weight: 400; line-height: 1.1; }
.legal-document p, .legal-document li { color: #405979; font-size: 16px; }
.legal-document a { color: var(--ink); text-decoration-color: var(--cobalt); text-decoration-thickness: 1px; text-underline-offset: 3px; }
.error-page { min-height: 72vh; padding: 140px 0; background: radial-gradient(circle at 78% 20%, #173a83, var(--ink-deep) 57%); }
.error-inner h1 { max-width: 830px; font-size: clamp(64px, 8vw, 108px); }
.error-inner > p:not(.eyebrow) { max-width: 520px; margin: 30px 0 40px; color: rgba(255, 255, 255, .66); }

.site-footer { padding: 78px 0 25px; color: var(--white); background: var(--ink-deep); }
.footer-grid { display: grid; grid-template-columns: 1.6fr .7fr .7fr; gap: 70px; padding-bottom: 68px; }
.brand-footer { color: var(--white); }
.brand-footer .brand-mark { color: var(--cyan); }
.footer-grid > div:first-child > p { margin: 22px 0 0; color: rgba(255, 255, 255, .53); font-family: var(--serif); font-size: 24px; line-height: 1.3; }
.footer-links { display: grid; align-content: start; gap: 10px; }
.footer-links a { color: rgba(255, 255, 255, .68); font-size: 12px; text-decoration: none; }
.footer-links a:hover { color: var(--cyan); }
.footer-label { margin-bottom: 8px; color: var(--cyan); font-family: var(--mono); font-size: 8px; letter-spacing: .15em; text-transform: uppercase; }
.footer-bottom { display: flex; justify-content: space-between; padding-top: 22px; border-top: 1px solid rgba(255, 255, 255, .13); color: rgba(255, 255, 255, .38); font-family: var(--mono); font-size: 8px; letter-spacing: .08em; text-transform: uppercase; }

.has-reveal .reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s ease, transform .8s cubic-bezier(.2, .7, .2, 1); }
.has-reveal .reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 1120px) {
    :root { --shell: min(100% - 44px, 940px); }
    .hero-grid { grid-template-columns: minmax(0, .84fr) minmax(480px, 1.16fr); gap: 22px; }
    .hero h1 { font-size: clamp(64px, 7.4vw, 82px); }
    .hero-collage { min-height: 530px; }
    .project-story, .project-story:nth-child(even) { grid-template-columns: minmax(0, 1.12fr) minmax(300px, .88fr); gap: 58px; }
    .project-copy h3 { font-size: 55px; }
    .concepts-layout { grid-template-columns: 1fr; gap: 60px; }
    .concepts-intro { padding-top: 0; }
    .concepts-intro > p:last-child { max-width: 620px; }
    .contact-panel { padding: 72px 52px 80px; }
    .contact-copy { gap: 56px; }
    .letter-identity { grid-template-columns: auto 1fr; }
}

@media (max-width: 860px) {
    :root { --shell: min(100% - 38px, 700px); }
    .section { padding: 100px 0; }
    .hero-liquid { min-height: 0; padding: 76px 0 135px; }
    .hero-grid { grid-template-columns: 1fr; gap: 35px; }
    .hero-copy { max-width: 650px; }
    .hero-collage { min-height: 580px; }
    .collage-card { width: 51%; }
    .section-heading { grid-template-columns: 1fr; gap: 30px; margin-bottom: 100px; }
    .project-story, .project-story:nth-child(even) { grid-template-columns: 1fr; gap: 55px; }
    .project-story:nth-child(even) .project-visual, .project-story:nth-child(even) .project-copy { grid-column: auto; grid-row: auto; }
    .project-story:nth-child(even) .project-copy { grid-row: 2; }
    .project-copy { max-width: 600px; }
    .project-stream { gap: 135px; }
    .principles { margin-top: 80px; }
    .concept-cloud { gap: 16px; }
    .concept-card { min-height: 330px; padding: 29px; }
    .method-grid { grid-template-columns: 1fr; gap: 70px; }
    .method-intro { position: static; }
    .contact { padding-top: 35px; }
    .contact-panel { border-radius: 42px 110px 42px 42px; }
    .contact-copy { grid-template-columns: 1fr; gap: 32px; }
    .contact-intro { max-width: 600px; }
    .legal-grid { grid-template-columns: 180px 1fr; gap: 55px; }
}

@media (max-width: 680px) {
    :root { --shell: calc(100% - 28px); }
    html { scroll-padding-top: 72px; }
    .section { padding: 78px 0; }
    .header-inner { min-height: 68px; }
    .brand { font-size: 22px; }
    .brand-mark { width: 35px; }
    .js .nav-toggle { display: flex; align-items: center; gap: 10px; padding: 10px 0; font-size: 11px; font-weight: 750; cursor: pointer; }
    .nav-toggle-lines { position: relative; width: 20px; height: 1px; background: currentColor; }
    .nav-toggle-lines::after { position: absolute; top: 6px; left: 0; width: 20px; height: 1px; background: currentColor; content: ""; }
    .js .site-nav { position: absolute; top: 68px; right: 0; left: 0; display: none; padding: 15px 14px 21px; border-bottom: 1px solid var(--line); background: rgba(249, 252, 255, .98); }
    .js .site-nav.is-open { display: grid; gap: 3px; }
    .js .site-nav a { padding: 11px 13px; }
    .site-nav .nav-contact { border: 0; }
    .hero-liquid { padding-top: 60px; }
    .hero h1 { font-size: clamp(54px, 16vw, 74px); }
    .hero-lead { font-size: 16px; }
    .hero-actions { align-items: flex-start; flex-direction: column; gap: 21px; }
    .hero-meta { gap: 24px; }
    .hero-collage { display: grid; min-height: 0; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 11px; margin: 2px -4px 0; padding: 10px 0 24px; }
    .collage-card { position: relative; top: auto; right: auto; bottom: auto; left: auto; width: 100%; min-width: 0; border-radius: 12px; }
    .collage-card figcaption { padding: 7px 9px; font-size: 6px; }
    .collage-card-01 { transform: rotate(-2.5deg); }
    .collage-card-02 { transform: translateY(9px) rotate(2.5deg); }
    .collage-card-03 { transform: translateY(-5px) rotate(2deg); }
    .collage-card-04 { transform: translateY(4px) rotate(-2deg); }
    .collage-card-01:hover, .collage-card-02:hover, .collage-card-03:hover, .collage-card-04:hover { transform: translateY(-3px); }
    .collage-note { top: 48%; left: 50%; font-size: 6px; transform: translate(-50%, -50%) rotate(-6deg); }
    .section-heading { margin-bottom: 78px; }
    .section-heading h2, .concepts-intro h2, .method h2, .contact h2 { font-size: 51px; }
    .section-heading > p { font-size: 15px; }
    .project-stream { gap: 112px; }
    .project-story, .project-story:nth-child(even) { gap: 43px; }
    .project-visual { margin: 0 -10px; padding: 34px 13px 24px; }
    .project-index { top: -35px; font-size: 95px; }
    .project-frame { border-radius: 12px; }
    .frame-bar { flex-basis: 27px; }
    .project-copy h3 { margin-top: 12px; font-size: 49px; }
    .project-concept { font-size: 23px; }
    .principles { margin-top: 55px; border-radius: 35px 35px 0 0; }
    .concept-cloud { grid-template-columns: 1fr; }
    .concept-card, .concept-card-01, .concept-card-02, .concept-card-03, .concept-card-04 { min-height: 0; padding: 29px; border-radius: 38px 68px 38px 48px; transform: none; }
    .method-grid { gap: 60px; }
    .method-steps li { grid-template-columns: 49px 1fr; gap: 20px; }
    .method-steps::before { left: 24px; }
    .method-steps > li > span { width: 49px; height: 49px; }
    .method-steps h3 { font-size: 38px; }
    .contact { padding: 24px 0 78px; }
    .contact-panel { width: calc(100% - 20px); padding: 51px 16px 24px; border-radius: 34px 75px 34px 34px; }
    .contact-copy { padding: 0 8px; margin-bottom: 38px; }
    .contact-intro { padding-left: 18px; }
    .contact-dialog { width: calc(100% - 10px); max-height: calc(100dvh - 10px); border-radius: 5px 35px 7px 7px; }
    .contact-dialog-close { top: 12px; left: 12px; }
    .contact-dialog-close button { width: 38px; height: 38px; }
    .contact-form { padding: 22px 19px 16px; border-radius: 4px 35px 6px 6px; }
    .contact-form::before { top: 14px; right: 16px; width: 42px; height: 42px; }
    .contact-form::after { top: 66px; }
    .letter-meta { min-height: 28px; gap: 12px; padding-right: 46px; padding-left: 40px; font-size: 5px; }
    .letter-opening { padding: 24px 0 20px; }
    .letter-salutation { margin-bottom: 14px; font-size: 36px; }
    .letter-sentence, .letter-identity { grid-template-columns: 1fr; gap: 6px; }
    .letter-sentence label, .letter-topics legend, .letter-message label { font-size: 18px; }
    .letter-identity label:not(:first-child) { margin-top: 10px; }
    .letter-topics { padding-bottom: 18px; }
    .letter-topics legend { margin-bottom: 10px; }
    .topic-options { gap: 7px; }
    .topic-chip span { padding: 6px 9px; font-size: 7px; }
    .letter-message textarea { min-height: 120px; }
    .letter-closing { grid-template-columns: 1fr; gap: 0; padding-top: 14px; }
    .letter-closing > p { display: none; }
    .form-footer { align-items: stretch; flex-direction: column; gap: 10px; margin-top: 12px; padding-top: 12px; }
    .form-footer .button { width: 100%; }
    .legal-hero { padding: 80px 0 70px; }
    .legal-hero-inner { grid-template-columns: 1fr; gap: 24px; }
    .legal-hero h1 { font-size: 59px; }
    .legal-grid { grid-template-columns: 1fr; gap: 48px; }
    .legal-index { position: static; grid-template-columns: 1fr 1fr; }
    .legal-index span { grid-column: 1 / -1; }
    .legal-document h2 { font-size: 32px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 44px 24px; }
    .footer-grid > div:first-child { grid-column: 1 / -1; }
    .footer-bottom { align-items: flex-start; flex-direction: column; gap: 8px; }
}

@media (max-width: 430px) {
    .hero h1 { font-size: 52px; }
    .hero-meta { display: grid; grid-template-columns: 1fr 1fr; }
    .project-copy h3 { font-size: 43px; }
    .section-heading h2, .concepts-intro h2, .method h2, .contact h2 { font-size: 45px; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}