/* ══════════════════════════════════════════
   TAX SHIFT — v3
   Brighter tone · prominent section labels
   ══════════════════════════════════════════ */

:root {
    --bg-dark: #0d0e12;
    --bg-dark-2: #14161d;
    --bg-cream: #f5f2ec;
    --bg-cream-2: #ede9df;
    --bg-cream-3: #e6e1d3;
    --ink: #14161d;
    --ink-2: #2a2c36;
    --ink-muted: #6b6d78;
    --paper: #f5f2ec;
    --paper-muted: rgba(245,242,236,.55);
    --paper-dim: rgba(245,242,236,.35);
    --accent: #3b56db;
    --accent-2: #6480ff;
    --hair-dark: rgba(245,242,236,.1);
    --hair-light: rgba(20,22,29,.1);
    --hair-light-2: rgba(20,22,29,.18);
    --serif: 'Shippori Mincho', 'Noto Serif JP', serif;
    --sans: 'Noto Sans JP', 'Inter', sans-serif;
    --mono: 'Inter', sans-serif;
    --ease: cubic-bezier(.19,1,.22,1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--bg-cream); }
body {
    font-family: var(--sans);
    font-weight: 400;
    line-height: 1.85;
    color: var(--ink);
    background: var(--bg-cream);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    letter-spacing: .02em;
}
::selection { background: var(--accent); color: #fff; }
img { display: block; max-width: 100%; }

/* ══════ CURSOR ══════ */
.cursor, .cursor-ring {
    position: fixed; top: 0; left: 0; pointer-events: none;
    z-index: 9998; border-radius: 50%;
    transform: translate(-50%,-50%);
    mix-blend-mode: difference;
}
.cursor { width: 6px; height: 6px; background: var(--paper); transition: transform .18s var(--ease); }
.cursor-ring {
    width: 34px; height: 34px;
    border: 1px solid rgba(245,242,236,.55);
    transition: transform .35s var(--ease), width .35s var(--ease), height .35s var(--ease), border-color .35s var(--ease);
}
.cursor.hover { transform: translate(-50%,-50%) scale(0); }
.cursor-ring.hover { width: 62px; height: 62px; border-color: var(--paper); }
@media (hover: none) { .cursor, .cursor-ring { display: none; } }

/* ══════ NAV ══════ */
nav#navbar {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    padding: 1.4rem 0;
    transition: background .5s var(--ease), padding .4s var(--ease), border-color .4s var(--ease);
    border-bottom: 1px solid transparent;
}
nav#navbar.solid {
    background: rgba(245,242,236,.82);
    backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
    padding: .9rem 0; border-bottom-color: var(--hair-light);
}
nav#navbar.solid .nav-logo img { filter: none; }
nav#navbar.solid .nav-menu a { color: var(--ink-muted); }
nav#navbar.solid .nav-menu a:hover, nav#navbar.solid .nav-menu a.on { color: var(--ink); }
nav#navbar.solid .nav-menu a::after { background: var(--ink); }
nav#navbar.solid .nav-toggle span { background: var(--ink); }
.nav-bar {
    max-width: calc(100% - 4rem); margin: 0 auto;
    display: flex; align-items: center;
}
.nav-logo { flex-shrink: 0; text-decoration: none; }
.nav-logo img { height: 34px; width: auto; filter: brightness(0) invert(1); opacity: .95; transition: opacity .3s, filter .5s var(--ease); }
.nav-logo:hover img { opacity: 1; }
.nav-menu {
    display: flex; gap: 2.5rem; margin-left: auto;
    align-items: center;
}
.nav-menu a {
    font-family: var(--mono);
    font-size: 12px; font-weight: 500; letter-spacing: .1em;
    color: var(--paper-muted); text-decoration: none;
    display: inline-flex; align-items: center; gap: .5em;
    transition: color .3s;
    position: relative;
}
.nav-menu a .n {
    font-size: 9px; color: var(--accent-2); opacity: .9;
    font-variant-numeric: tabular-nums;
}
.nav-menu a:hover, .nav-menu a.on { color: var(--paper); }
.nav-menu a::after {
    content:''; position: absolute; left: 0; right: 100%; bottom: -5px;
    height: 1px; background: var(--paper);
    transition: right .5s var(--ease);
}
.nav-menu a:hover::after, .nav-menu a.on::after { right: 0; }
.nav-toggle {
    display: none; margin-left: auto;
    background: none; border: none; cursor: pointer;
    flex-direction: column; gap: 6px; padding: 8px;
    z-index: 101;
}
.nav-toggle span {
    display: block; width: 24px; height: 1px;
    background: var(--paper); transition: transform .4s var(--ease), background .4s var(--ease);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(3.5px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { transform: translateY(-3.5px) rotate(-45deg); }

/* ══════ HERO ══════ */
#hero {
    position: relative; min-height: 100vh;
    display: flex; align-items: center; justify-content: center;
    overflow: hidden;
    background: var(--bg-dark);
}
.hero-bg { position: absolute; inset: 0; z-index: 1; }
.hero-bg img {
    width: 100%; height: 100%; object-fit: cover;
    transform: scale(1.05);
    animation: heroKen 24s ease-in-out infinite alternate;
    opacity: .6;
}
@keyframes heroKen {
    from { transform: scale(1.05) translate(-1%, -1%); }
    to { transform: scale(1.12) translate(1%, 1%); }
}
.hero-veil {
    position: absolute; inset: 0; z-index: 2;
    background:
        radial-gradient(ellipse at 50% 40%, transparent 0%, rgba(13,14,18,.55) 65%, var(--bg-dark) 100%),
        linear-gradient(180deg, rgba(13,14,18,.5) 0%, rgba(13,14,18,.2) 40%, rgba(13,14,18,.85) 100%);
}
#particles { position: absolute; inset: 0; z-index: 3; }

.hero-body {
    position: relative; z-index: 4;
    text-align: center;
    padding: 0 2rem;
    max-width: 1000px;
}
.hero-h {
    font-family: var(--serif);
    font-weight: 500;
    font-size: clamp(2.6rem, 6.4vw, 5.6rem);
    line-height: 1.24; letter-spacing: .04em;
    color: var(--paper);
}
.hero-line {
    display: block;
    overflow: hidden;
    padding: .1em 0;
}
.hero-line .char {
    display: inline-block;
    opacity: 0;
    transform: translateY(110%) scale(1.06);
    filter: blur(8px);
    transition:
        opacity 1s var(--ease),
        transform 1.15s var(--ease),
        filter .75s var(--ease);
    will-change: transform, opacity, filter;
}
.hero-line--em .char { color: var(--paper); }
.hero-line--em { font-weight: 600; }
.loaded .hero-line .char {
    opacity: 1;
    transform: translateY(0) scale(1);
    filter: blur(0);
}
/* accent line under the hero copy — draws in after text lands */
.hero-accent {
    display: block;
    width: 56px; height: 1px;
    background: var(--paper);
    margin: 2.6rem auto 0;
    transform: scaleX(0);
    transform-origin: center;
    opacity: .5;
    transition: transform 1.4s 1.6s var(--ease);
}
.loaded .hero-accent { transform: scaleX(1); }
.hero-sub {
    margin-top: 1.8rem;
    font-family: var(--sans);
    font-size: .82rem; letter-spacing: .35em;
    color: var(--paper-dim);
    line-height: 2.2;
    opacity: 0;
    transform: translateY(14px);
    transition: opacity 1.2s 1.9s var(--ease), transform 1.2s 1.9s var(--ease);
}
.loaded .hero-sub { opacity: 1; transform: translateY(0); }

.hero-cue {
    position: absolute; bottom: 3rem; right: 2rem; z-index: 5;
    display: flex; flex-direction: column; align-items: center; gap: .8rem;
    text-decoration: none;
    opacity: 0; transition: opacity 1.2s 1s var(--ease);
}
.loaded .hero-cue { opacity: 1; }
.hero-cue span {
    font-family: var(--mono); font-size: 10px;
    letter-spacing: .3em; color: var(--paper-dim);
    writing-mode: vertical-rl;
}
.hero-cue i {
    width: 1px; height: 60px; background: var(--paper-dim);
    position: relative; overflow: hidden;
}
.hero-cue i::after {
    content: ''; position: absolute; inset: 0;
    background: var(--paper);
    animation: cuePulse 2.2s infinite var(--ease);
}
@keyframes cuePulse {
    0% { transform: translateY(-100%); }
    50%,100% { transform: translateY(100%); }
}

/* ══════ SECTIONS ══════ */
.sec-cream { background: var(--bg-cream); color: var(--ink); position: relative; }
.sec-cream--tinted { background: var(--bg-cream-2); }
.sec-dark { background: var(--bg-dark); color: var(--paper); position: relative; }

.sec-inner {
    max-width: 1240px; margin: 0 auto;
    padding: 0 2rem;
}

/* Section head — prominent label */
.sec-head {
    padding: 8rem 0 6rem;
    max-width: 900px;
}
.sec-head--center {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

/* Section label — the new prominent version */
.sec-lbl {
    display: inline-flex;
    align-items: center;
    gap: 1.2rem;
    margin-bottom: 3rem;
    font-family: var(--serif);
}
.sec-head--center .sec-lbl { justify-content: center; }
.sec-lbl-num {
    font-family: var(--mono);
    font-size: 12px; font-weight: 500;
    letter-spacing: .18em;
    color: var(--accent);
    font-variant-numeric: tabular-nums;
    padding-top: .1em;
}
.sec-lbl-line {
    display: inline-block;
    width: 48px; height: 1px;
    background: var(--accent);
}
.sec-lbl-jp {
    font-family: var(--serif);
    font-size: 1.35rem;
    font-weight: 500;
    letter-spacing: .12em;
    color: var(--ink);
}
.sec-lbl-en {
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: .32em;
    color: var(--ink-muted);
    text-transform: uppercase;
    padding-top: .3em;
}

.sec-h {
    font-family: var(--serif);
    font-size: clamp(2.2rem, 5.2vw, 4.4rem);
    font-weight: 500; line-height: 1.3; letter-spacing: .02em;
    color: var(--ink);
    margin-bottom: 1.5rem;
}
.sec-desc {
    font-size: .92rem; line-height: 2.2;
    color: var(--ink-muted);
    margin-top: 1.5rem;
}

/* Dark section variant of labels */
.sec-dark .sec-lbl-jp { color: var(--paper); }
.sec-dark .sec-lbl-en { color: var(--paper-muted); }
.sec-dark .sec-h { color: var(--paper); }
.sec-dark .sec-desc { color: var(--paper-muted); }
.sec-dark .sec-lbl-num { color: var(--accent-2); }
.sec-dark .sec-lbl-line { background: var(--accent-2); }

/* ══════ ABOUT ══════ */
#about { padding-bottom: 8rem; }
.about-body {
    display: grid;
    grid-template-columns: 1.1fr .9fr;
    gap: 5rem;
    align-items: start;
}
.about-pic {
    position: relative;
    aspect-ratio: 4/5;
    border-radius: 4px; overflow: hidden;
    grid-row: 1; grid-column: 2;
    background: var(--bg-cream-2);
}
.about-pic img {
    width: 100%; height: 100%; object-fit: cover;
    transition: transform 1.6s var(--ease);
}
.about-pic:hover img { transform: scale(1.05); }
.about-txt {
    grid-row: 1; grid-column: 1;
    padding-top: 2rem;
    max-width: 500px;
}
.about-txt p {
    font-size: .95rem; line-height: 2.35; color: var(--ink-2);
    margin-bottom: 1.5rem;
}
.about-txt p:last-child { margin-bottom: 0; }

/* ══════ BUSINESS ══════ */
#business .sec-head { padding-bottom: 4rem; }

.pin-wrap {
    position: relative;
    height: 500vh;
}
.pin-inner {
    position: sticky; top: 0;
    height: 100vh;
    overflow: hidden;
    display: flex; align-items: center;
}
.pin-progress {
    position: absolute; bottom: 3rem; left: 2rem; right: 2rem;
    height: 1px; background: rgba(20,22,29,.1);
    z-index: 10;
}
.pin-progress span {
    display: block; height: 100%; width: 0%;
    background: var(--ink);
    transition: width .1s linear;
}
.pin-track {
    display: flex; height: 100%;
    padding: 6rem 8vw 8rem;
    gap: 4vw;
    will-change: transform;
    align-items: center;
}
.card {
    flex-shrink: 0;
    width: 62vw; max-width: 900px;
    height: 78vh; max-height: 640px;
    background: #fff;
    display: grid;
    grid-template-columns: .95fr 1.05fr;
    overflow: hidden;
    border-radius: 2px;
    position: relative;
    box-shadow: 0 40px 80px -30px rgba(20,22,29,.18);
}
.card-media {
    position: relative; overflow: hidden;
    background: var(--bg-cream-2);
}
.card-media::after {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(135deg, rgba(20,22,29,.08) 0%, transparent 40%);
    z-index: 1;
}
.card-media img {
    width: 100%; height: 100%; object-fit: cover;
}
.card-body {
    padding: 3.5rem 3rem 2rem;
    display: flex; flex-direction: column;
    position: relative;
}
.card-n {
    font-family: var(--mono);
    font-size: 12px; font-weight: 500;
    letter-spacing: .2em;
    color: var(--accent);
    margin-bottom: 3rem;
    font-variant-numeric: tabular-nums;
}
.card-lbl {
    font-family: var(--mono); font-size: 10px;
    letter-spacing: .4em;
    color: var(--ink-muted);
    text-transform: uppercase;
    margin-bottom: 1rem;
}
.card-h {
    font-family: var(--serif);
    font-size: clamp(1.6rem, 2.4vw, 2.4rem);
    font-weight: 500; line-height: 1.32; letter-spacing: .02em;
    color: var(--ink);
    margin-bottom: 1.6rem;
}
.card-catch {
    font-family: var(--serif); font-size: .95rem;
    color: var(--accent); margin-bottom: 1.5rem;
    letter-spacing: .05em;
}
.card-txt {
    font-size: .85rem; line-height: 2.1;
    color: var(--ink-muted);
    margin-bottom: auto; padding-bottom: 2rem;
}
.card-tags {
    display: flex; flex-wrap: wrap; gap: .4rem;
    list-style: none;
    padding-top: 1.5rem;
    border-top: 1px solid var(--hair-light);
}
.card-tags li {
    font-family: var(--mono); font-size: 10px;
    letter-spacing: .15em;
    padding: .35rem .8rem;
    border: 1px solid var(--hair-light);
    border-radius: 100px;
    color: var(--ink-muted);
    transition: all .4s;
}
.card:hover .card-tags li { border-color: var(--hair-light-2); }

/* ══════ STRENGTH ══════ */
#strength { padding-bottom: 8rem; }
.str-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
}
.str-item {
    padding: 3.5rem 3rem 3.5rem 0;
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 2.5rem;
    border-top: 1px solid var(--hair-light);
    position: relative;
    align-items: start;
}
.str-item:nth-child(odd) { padding-right: 4rem; }
.str-item:nth-child(even) { padding-left: 4rem; padding-right: 0; border-left: 1px solid var(--hair-light); }
.str-item:nth-last-child(-n+2) { border-bottom: 1px solid var(--hair-light); }
.str-num {
    font-family: var(--mono);
    font-size: 12px; font-weight: 500;
    letter-spacing: .2em;
    color: var(--accent);
    padding-top: .35rem;
    font-variant-numeric: tabular-nums;
}
.str-body h3 {
    font-family: var(--serif);
    font-size: 1.35rem; font-weight: 500;
    line-height: 1.55; letter-spacing: .03em;
    color: var(--ink);
    margin-bottom: 1.2rem;
}
.str-body p {
    font-size: .88rem; line-height: 2.15;
    color: var(--ink-muted);
}

/* ══════ COMPANY ══════ */
#company { padding-bottom: 8rem; }
#company .sec-head { padding-bottom: 3rem; }
.co-grid {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 6rem;
    align-items: start;
}
.co-lead { position: sticky; top: 6rem; }
.co-h {
    font-family: var(--serif);
    font-size: clamp(2.4rem, 5.5vw, 5rem);
    font-weight: 500; line-height: 1.05; letter-spacing: .02em;
    color: var(--ink);
    margin-bottom: 3rem;
}
.co-mark { width: 90px; opacity: .5; }
.co-list { border-top: 1px solid var(--hair-light-2); }
.co-row {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: 2rem;
    padding: 1.8rem 0;
    border-bottom: 1px solid var(--hair-light-2);
    align-items: start;
}
.co-row dt {
    font-family: var(--mono); font-size: 11px;
    letter-spacing: .28em; color: var(--ink-muted);
    text-transform: uppercase;
    padding-top: .3rem;
}
.co-row dd {
    font-size: .98rem; line-height: 2;
    color: var(--ink);
}
.co-row dd a {
    color: var(--accent); text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color .3s;
}
.co-row dd a:hover { border-bottom-color: var(--accent); }

/* ══════ FOOTER ══════ */
footer {
    position: relative;
    background: var(--bg-dark);
    padding: 5rem 0 2rem;
    overflow: hidden;
}
.ft-inner {
    max-width: 1240px; margin: 0 auto;
    padding: 0 2rem 3rem;
    display: flex; justify-content: space-between; align-items: flex-end;
    gap: 3rem; flex-wrap: wrap;
    border-bottom: 1px solid var(--hair-dark);
    margin-bottom: 2rem;
}
.ft-logo { height: 32px; width: auto; opacity: .8; filter: brightness(0) invert(1); margin-bottom: 1.2rem; }
.ft-tag {
    font-family: var(--serif); font-size: 1.05rem;
    letter-spacing: .05em; color: var(--paper);
    font-style: italic;
}
.ft-nav {
    display: flex; gap: 2rem; flex-wrap: wrap;
}
.ft-nav a {
    font-family: var(--mono); font-size: 11px;
    letter-spacing: .28em; color: var(--paper-muted);
    text-decoration: none; text-transform: uppercase;
    transition: color .3s;
    padding-bottom: 2px;
    border-bottom: 1px solid transparent;
}
.ft-nav a:hover { color: var(--paper); border-bottom-color: var(--paper); }
.ft-c {
    max-width: 1240px; margin: 0 auto; padding: 0 2rem;
    font-family: var(--mono); font-size: 10px;
    letter-spacing: .22em; color: var(--paper-dim);
    text-align: center;
}

/* ══════ REVEAL ANIMATIONS ══════ */
.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 1.1s var(--ease), transform 1.1s var(--ease);
}
.reveal.in { opacity: 1; transform: translateY(0); }

.reveal-mask {
    position: relative;
    overflow: hidden;
}
.reveal-mask::before {
    content: ''; position: absolute; inset: 0;
    background: var(--bg-cream-2);
    transform-origin: right center;
    transform: scaleX(1);
    transition: transform 1.4s var(--ease);
    z-index: 2;
}
.reveal-mask.in::before { transform: scaleX(0); }
.reveal-mask img { transform: scale(1.14); transition: transform 2s var(--ease); }
.reveal-mask.in img { transform: scale(1); }

/* ══════ RESPONSIVE ══════ */
@media (max-width: 1024px) {
    .about-body { grid-template-columns: 1fr; gap: 3rem; }
    .about-pic { grid-row: 1; grid-column: 1; max-width: 500px; }
    .about-txt { grid-row: 2; grid-column: 1; padding-top: 0; }
    .co-grid { grid-template-columns: 1fr; gap: 3rem; }
    .co-lead { position: static; }
    .card { width: 80vw; }
}

@media (max-width: 768px) {
    body { letter-spacing: .01em; }
    .nav-menu {
        position: fixed; inset: 0 -100% 0 auto;
        width: 78%; height: 100vh;
        background: var(--bg-cream);
        flex-direction: column;
        justify-content: center; align-items: flex-start;
        padding: 4rem 2.5rem; gap: 2rem;
        transition: right .5s var(--ease);
    }
    .nav-menu.open { right: 0; }
    .nav-menu a { font-size: 15px; color: var(--ink-muted); }
    .nav-menu a::after { background: var(--ink); }
    .nav-menu a .n { font-size: 10px; }
    .nav-toggle { display: flex; }
    nav#navbar:not(.solid) .nav-toggle.open + .nav-menu a { color: var(--ink-muted); }

    .sec-inner { padding: 0 1.5rem; }
    .sec-head { padding: 5rem 0 3rem; }
    .sec-lbl { gap: .8rem; margin-bottom: 2rem; }
    .sec-lbl-line { width: 32px; }
    .sec-lbl-jp { font-size: 1.05rem; letter-spacing: .1em; }
    .sec-lbl-en { font-size: 9px; letter-spacing: .28em; }

    #about, #strength, #company { padding-bottom: 5rem; }
    .about-txt p { font-size: .88rem; }

    .hero-body { padding: 0 1.5rem; }
    .hero-h { font-size: clamp(1.9rem, 8vw, 3rem); }
    .hero-sub { font-size: .68rem; letter-spacing: .25em; margin-top: 2rem; }
    .hero-cue { display: none; }

    /* Business: switch to vertical scroll on mobile */
    .pin-wrap { height: auto; }
    .pin-inner { position: static; height: auto; overflow: visible; }
    .pin-progress { display: none; }
    .pin-track {
        flex-direction: column; padding: 2rem 1.5rem 4rem;
        gap: 2.5rem; height: auto;
    }
    .card {
        width: 100%; height: auto;
        grid-template-columns: 1fr;
        max-height: none;
    }
    .card-media { aspect-ratio: 16/10; }
    .card-body { padding: 2.5rem 1.8rem 2rem; }
    .card-n { margin-bottom: 1.5rem; }
    .card-h { font-size: 1.4rem; }

    .str-grid { grid-template-columns: 1fr; }
    .str-item, .str-item:nth-child(odd), .str-item:nth-child(even) {
        padding: 2.5rem 0; border-left: none; border-right: none;
    }
    .str-item:not(:last-child) { border-bottom: 1px solid var(--hair-light); }
    .str-item:nth-last-child(-n+2):not(:last-child) { border-bottom: 1px solid var(--hair-light); }
    .str-body h3 { font-size: 1.1rem; }

    .co-row { grid-template-columns: 1fr; gap: .4rem; padding: 1.4rem 0; }
    .co-row dt { padding-top: 0; }
    .co-row dd { font-size: .9rem; }

    .ft-inner { flex-direction: column; align-items: flex-start; gap: 2rem; }
}

/* ══════ MOTION PREFERENCE ══════ */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
    }
    .hero-line .char { opacity: 1; transform: none; filter: none; }
    .hero-accent { transform: scaleX(1); }
    .hero-sub { opacity: 1; transform: none; }
    .reveal { opacity: 1; transform: none; }
    .reveal-mask::before { transform: scaleX(0); }
    .reveal-mask img { transform: none; }
}