/*
Theme Name: システム工房
Author: 今村伶志
Version: 2.0
Description: 白黒基調のモノトーン・ミニマルデザイン。Vanilla JSによるインタラクション。
*/

/* =========================================
   Design Tokens
========================================= */
:root{
    --c-black: #0f0f0f;
    --c-white: #f7f7f5;
    --c-gray: #8a8a8a;
    --c-line: #dcdcdc;
    --c-line-dark: rgba(255, 255, 255, .18);

    --font-display: 'Space Grotesk', 'Noto Sans JP', sans-serif;
    --font-body: 'Noto Sans JP', sans-serif;
    --font-mono: 'IBM Plex Mono', monospace;

    --ease-out: cubic-bezier(.22, 1, .36, 1);
    --ease-expo: cubic-bezier(.16, 1, .3, 1);

    --header-h: 76px;
}

/* =========================================
   Base
========================================= */
*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html{
    scroll-behavior: smooth;
}

body{
    font-family: var(--font-body);
    font-weight: 400;
    background-color: var(--c-white);
    color: var(--c-black);
    line-height: 1.9;
    letter-spacing: .02em;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

body.is-loading,
body.nav-open{
    overflow: hidden;
}

img{
    max-width: 100%;
    display: block;
}

a{
    color: inherit;
}

::selection{
    background: var(--c-black);
    color: var(--c-white);
}

/* =========================================
   Loader
========================================= */
.loader{
    position: fixed;
    inset: 0;
    z-index: 9999;
    pointer-events: none;
}

.loader-panel{
    position: absolute;
    inset: 0;
    background: var(--c-black);
    transition: transform 1s var(--ease-expo);
}

.loader-inner{
    position: absolute;
    inset: 0;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    color: var(--c-white);
    transition: opacity .4s ease;
}

.loader-count{
    font-family: var(--font-display);
    font-size: clamp(4rem, 12vw, 9rem);
    font-weight: 300;
    line-height: 1;
}

.loader-count::after{
    content: '%';
    font-size: .3em;
    color: var(--c-gray);
    margin-left: .2em;
}

.loader-label{
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: .5em;
    color: var(--c-gray);
}

.loader.is-done .loader-inner{
    opacity: 0;
}

.loader.is-done .loader-panel{
    transform: translateY(-100%);
}

.loader.is-hidden{
    display: none;
}

/* =========================================
   Custom Cursor
========================================= */
.cursor-dot,
.cursor-ring{
    position: fixed;
    top: 0;
    left: 0;
    z-index: 10000;
    pointer-events: none;
    border-radius: 50%;
    mix-blend-mode: difference;
    opacity: 0;
}

.cursor-dot{
    width: 8px;
    height: 8px;
    background: #fff;
}

.cursor-ring{
    width: 36px;
    height: 36px;
    border: 1px solid #fff;
    transition: width .35s var(--ease-out), height .35s var(--ease-out), opacity .3s;
}

body.cursor-active .cursor-dot,
body.cursor-active .cursor-ring{
    opacity: 1;
}

body.cursor-hover .cursor-ring{
    width: 72px;
    height: 72px;
}

@media (hover: none), (pointer: coarse){
    .cursor-dot,
    .cursor-ring{
        display: none;
    }
}

/* =========================================
   Scroll Progress
========================================= */
.scroll-progress{
    position: fixed;
    top: 0;
    left: 0;
    height: 2px;
    width: 100%;
    background: #fff;
    mix-blend-mode: difference;
    transform: scaleX(0);
    transform-origin: left;
    z-index: 1200;
}

/* =========================================
   Header
========================================= */
.site-header{
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2.5rem;
    z-index: 1100;
    mix-blend-mode: difference;
    color: #fff;
    transition: transform .5s var(--ease-out);
}

.site-header.is-hidden{
    transform: translateY(-100%);
}

.site-logo{
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 18px;
    letter-spacing: .22em;
    text-decoration: none;
    color: #fff;
}

.toggle-btn{
    position: relative;
    width: 44px;
    height: 44px;
    background: none;
    border: none;
    cursor: pointer;
}

.toggle-btn span{
    position: absolute;
    left: 50%;
    display: block;
    width: 32px;
    height: 1.5px;
    background: #fff;
    transition: transform .5s var(--ease-out);
}

.toggle-btn span:nth-child(1){
    transform: translate(-50%, -5px);
}

.toggle-btn span:nth-child(2){
    transform: translate(-50%, 5px);
}

body.nav-open .toggle-btn span:nth-child(1){
    transform: translate(-50%, 0) rotate(45deg);
}

body.nav-open .toggle-btn span:nth-child(2){
    transform: translate(-50%, 0) rotate(-45deg);
}

/* =========================================
   Global Nav (fullscreen)
========================================= */
.global-nav{
    position: fixed;
    inset: 0;
    z-index: 1000;
    visibility: hidden;
    transition: visibility 0s .9s;
}

.global-nav-bg{
    position: absolute;
    inset: 0;
    background: var(--c-black);
    transform: translateY(-100%);
    transition: transform .8s var(--ease-expo);
}

.global-nav-watermark{
    position: absolute;
    right: -2vw;
    bottom: -6vw;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 42vw;
    line-height: 1;
    color: transparent;
    -webkit-text-stroke: 1px rgba(255, 255, 255, .07);
    pointer-events: none;
    user-select: none;
}

.global-nav-inner{
    position: relative;
    height: 100%;
    display: flex;
    flex-direction: column;
    padding: calc(var(--header-h) + .5rem) clamp(2rem, 8vw, 10rem) 2rem;
    overflow-y: auto;
}

.nav-items{
    list-style: none;
    /* 上下autoマージンで中央寄せ（溢れた場合はスクロールに切替わる） */
    margin-top: auto;
}

.nav-items li{
    overflow: hidden;
    border-bottom: 1px solid var(--c-line-dark);
}

.nav-items li a{
    display: flex;
    align-items: baseline;
    gap: 1.5rem;
    padding: .3em 0;
    text-decoration: none;
    color: var(--c-white);
    font-family: var(--font-display);
    font-weight: 400;
    /* 画面の幅と高さの両方に連動させ、低い画面でも6項目が収まるように */
    font-size: min(clamp(1.7rem, 5vw, 3.6rem), 6vh);
    line-height: 1.3;
    letter-spacing: .04em;
    transform: translateY(110%);
    transition: transform .8s var(--ease-expo), color .3s, letter-spacing .5s var(--ease-out);
}

.nav-items li a:hover{
    color: var(--c-gray);
    letter-spacing: .12em;
}

.nav-index{
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--c-gray);
}

.nav-ext{
    font-size: .5em;
    margin-left: .5em;
}

.global-nav-foot{
    margin-top: clamp(1.2rem, 4vh, 3rem);
    margin-bottom: auto;
    overflow: hidden;
    flex-shrink: 0;
}

.global-nav-note{
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: .3em;
    color: var(--c-gray);
    transform: translateY(110%);
    transition: transform .8s var(--ease-expo) .5s;
}

body.nav-open .global-nav{
    visibility: visible;
    transition: visibility 0s 0s;
}

body.nav-open .global-nav-bg{
    transform: translateY(0);
}

body.nav-open .nav-items li a,
body.nav-open .global-nav-note{
    transform: translateY(0);
}

body.nav-open .nav-items li:nth-child(1) a{ transition-delay: .25s; }
body.nav-open .nav-items li:nth-child(2) a{ transition-delay: .32s; }
body.nav-open .nav-items li:nth-child(3) a{ transition-delay: .39s; }
body.nav-open .nav-items li:nth-child(4) a{ transition-delay: .46s; }
body.nav-open .nav-items li:nth-child(5) a{ transition-delay: .53s; }
body.nav-open .nav-items li:nth-child(6) a{ transition-delay: .6s; }

/* =========================================
   Split Text / Reveal Animation
========================================= */
[data-split] .split-word{
    display: inline-block;
    overflow: hidden;
    vertical-align: bottom;
}

[data-split] .split-char{
    display: inline-block;
    transform: translateY(120%);
    transition: transform .9s var(--ease-expo);
}

[data-split].is-inview .split-char{
    transform: translateY(0);
}

[data-reveal]{
    opacity: 0;
    transform: translateY(48px);
    transition: opacity 1s ease, transform 1s var(--ease-expo);
}

[data-reveal].is-inview{
    opacity: 1;
    transform: translateY(0);
}

[data-reveal="line"]{
    transform: scaleX(0);
    transform-origin: left;
}

[data-reveal="line"].is-inview{
    transform: scaleX(1);
}

[data-reveal="mask"]{
    transform: none;
    opacity: 1;
    clip-path: inset(0 100% 0 0);
    transition: clip-path 1.2s var(--ease-expo);
}

[data-reveal="mask"].is-inview{
    clip-path: inset(0 0 0 0);
}

/* グループ内の子要素を段階的に表示（delayはJSで付与） */
[data-reveal-group] > *{
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 1s ease, transform 1s var(--ease-expo);
}

[data-reveal-group].is-inview > *{
    opacity: 1;
    transform: translateY(0);
}

/* =========================================
   Layout Utilities
========================================= */
.section{
    padding: clamp(6rem, 12vw, 11rem) 0;
}

.section-inner{
    width: 90%;
    max-width: 72rem;
    margin: 0 auto;
}

.section-head{
    margin-bottom: clamp(3rem, 6vw, 5rem);
}

.section-label{
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: .35em;
    color: var(--c-gray);
    margin-bottom: 1.2rem;
}

.section-title{
    font-family: var(--font-display);
    font-weight: 500;
    font-size: clamp(3rem, 8vw, 6.5rem);
    line-height: 1.05;
    letter-spacing: .01em;
    text-transform: uppercase;
}

.section-divider{
    display: block;
    width: 100%;
    height: 1px;
    background: currentColor;
    opacity: .25;
    margin-top: 2rem;
}

/* 黒背景セクション */
.section--dark{
    background: var(--c-black);
    color: var(--c-white);
}

/* 矢印付きリンク */
.btn-line{
    display: inline-flex;
    align-items: center;
    gap: .8em;
    font-family: var(--font-display);
    font-size: clamp(1rem, 1.6vw, 1.25rem);
    letter-spacing: .12em;
    text-decoration: none;
    padding-bottom: .4em;
    position: relative;
}

.btn-line::after{
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: currentColor;
    transform: scaleX(1);
    transform-origin: left;
    transition: transform .5s var(--ease-out);
}

.btn-line:hover::after{
    transform: scaleX(0);
    transform-origin: right;
}

.btn-line .btn-arrow{
    display: inline-block;
    transition: transform .5s var(--ease-out);
}

.btn-line:hover .btn-arrow{
    transform: translateX(.5em);
}

.section-more{
    margin-top: 3.5rem;
    text-align: right;
}

/* =========================================
   Marquee
========================================= */
.marquee{
    overflow: hidden;
    width: 100%;
}

.marquee-track{
    display: flex;
    width: max-content;
    animation: marquee var(--marquee-duration, 40s) linear infinite;
}

.marquee:hover .marquee-track{
    animation-play-state: paused;
}

.marquee-group{
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

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

/* =========================================
   Hero (TOP)
========================================= */
.hero{
    position: relative;
    height: 100vh;
    height: 100svh;
    min-height: 640px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow: hidden;
}

#heroCanvas{
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.hero-inner{
    position: relative;
    width: 90%;
    max-width: 78rem;
    margin: 0 auto;
    pointer-events: none;
}

.hero-label{
    font-family: var(--font-mono);
    font-size: clamp(10px, 1.3vw, 13px);
    letter-spacing: .4em;
    color: var(--c-gray);
    margin-bottom: 2rem;
}

.hero-title{
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(2.6rem, 12vw, 10rem);
    line-height: 1.15;
    letter-spacing: .02em;
    text-transform: uppercase;
}

.hero-title .hero-line{
    display: block;
}

.hero-title .hero-line--outline .split-char{
    color: transparent;
    -webkit-text-stroke: 1.5px var(--c-black);
}

.hero-sub{
    margin-top: 2.5rem;
    font-size: clamp(.85rem, 1.6vw, 1.05rem);
    line-height: 2.2;
    color: #3c3c3c;
}

.hero-meta{
    position: absolute;
    bottom: 2.2rem;
    left: 0;
    width: 100%;
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    padding: 0 2.5rem;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: .25em;
    color: var(--c-gray);
}

.hero-scroll{
    display: flex;
    align-items: center;
    gap: 1rem;
}

.hero-scroll-line{
    display: block;
    width: 1px;
    height: 56px;
    background: var(--c-gray);
    overflow: hidden;
    position: relative;
}

.hero-scroll-line::after{
    content: '';
    position: absolute;
    top: -100%;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--c-black);
    animation: scrollLine 2s var(--ease-out) infinite;
}

@keyframes scrollLine{
    0%{ top: -100%; }
    50%{ top: 0; }
    100%{ top: 100%; }
}

/* =========================================
   Intro (TOP: about)
========================================= */
.intro-statement{
    font-size: clamp(1.4rem, 3.2vw, 2.4rem);
    font-weight: 500;
    line-height: 1.8;
    letter-spacing: .04em;
    margin-bottom: 3.5rem;
}

.intro-text{
    columns: 2;
    column-gap: 4rem;
}

.intro-text p{
    font-size: .95rem;
    color: #3c3c3c;
    margin-bottom: 1.8em;
    break-inside: avoid;
}

.intro-more{
    margin-top: 3rem;
}

/* =========================================
   Services (TOP)
========================================= */
.service-list{
    list-style: none;
    border-top: 1px solid var(--c-line-dark);
}

.service-item{
    border-bottom: 1px solid var(--c-line-dark);
    position: relative;
    overflow: hidden;
}

.service-item::before{
    content: '';
    position: absolute;
    inset: 0;
    background: var(--c-white);
    transform: scaleY(0);
    transform-origin: bottom;
    transition: transform .5s var(--ease-out);
}

.service-item:hover::before{
    transform: scaleY(1);
    transform-origin: top;
}

.service-item-inner{
    position: relative;
    display: grid;
    grid-template-columns: 5rem 1fr 1.5fr auto;
    align-items: center;
    gap: 2rem;
    padding: 2.6rem 1.5rem;
    transition: color .4s;
}

.service-item:hover .service-item-inner{
    color: var(--c-black);
}

.service-index{
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--c-gray);
}

.service-name{
    font-family: var(--font-display);
    font-size: clamp(1.3rem, 2.6vw, 1.9rem);
    font-weight: 500;
    line-height: 1.3;
}

.service-name-ja{
    display: block;
    font-family: var(--font-body);
    font-size: .8rem;
    font-weight: 400;
    color: var(--c-gray);
    margin-top: .4em;
    letter-spacing: .1em;
}

.service-desc{
    font-size: .88rem;
    line-height: 2;
    color: var(--c-gray);
    transition: color .4s;
}

.service-item:hover .service-desc{
    color: #3c3c3c;
}

.service-arrow{
    font-family: var(--font-display);
    font-size: 1.5rem;
    transition: transform .5s var(--ease-out);
}

.service-item:hover .service-arrow{
    transform: translateX(.4em) rotate(-45deg);
}

/* =========================================
   Work Cards（共通）
========================================= */
.work-card{
    display: block;
    text-decoration: none;
    color: inherit;
    position: relative;
}

.work-card-img{
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: #e8e8e6;
}

.work-card-img img{
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(100%);
    transform: scale(1.02);
    transition: filter .7s ease, transform 1.2s var(--ease-out);
}

.work-card:hover .work-card-img img{
    filter: grayscale(0%);
    transform: scale(1.08);
}

.work-card-img::after{
    content: 'VIEW';
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: .4em;
    color: var(--c-white);
    background: rgba(15, 15, 15, .35);
    opacity: 0;
    transition: opacity .5s ease;
}

.work-card:hover .work-card-img::after{
    opacity: 1;
}

.work-card-body{
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1.5rem;
    padding: 1.1rem .2rem 0;
    border-top: 1px solid currentColor;
    margin-top: 1.1rem;
}

.work-card-title{
    font-size: .95rem;
    font-weight: 500;
    line-height: 1.6;
}

.work-card-date{
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--c-gray);
    white-space: nowrap;
}

/* TOPページ：マーキー内カード */
.works-marquee .marquee-group{
    gap: 2.5rem;
    padding-right: 2.5rem;
    align-items: stretch;
}

.works-marquee .work-card{
    width: clamp(280px, 32vw, 420px);
    flex-shrink: 0;
}

/* グリッド（一覧ページ / ポートフォリオ） */
.works-cards{
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 4rem 2.5rem;
}

.works-cards .work-card.is-collapsed{
    display: none;
}

/* =========================================
   News List（共通）
========================================= */
.news-list{
    list-style: none;
    border-top: 1px solid currentColor;
}

.news-list li{
    border-bottom: 1px solid currentColor;
}

.news-list li.is-collapsed{
    display: none;
}

.news-list li a{
    display: flex;
    align-items: baseline;
    gap: 2.5rem;
    padding: 1.7rem 1rem;
    text-decoration: none;
    color: inherit;
    position: relative;
    transition: padding-left .5s var(--ease-out), color .3s;
}

.news-list li a:hover{
    padding-left: 2rem;
    color: var(--c-gray);
}

.news-date{
    font-family: var(--font-mono);
    font-size: 11.5px;
    letter-spacing: .1em;
    color: var(--c-gray);
    white-space: nowrap;
}

.news-title{
    font-size: .98rem;
    font-weight: 500;
    line-height: 1.7;
    flex: 1;
}

.news-item-arrow{
    font-family: var(--font-display);
    transition: transform .5s var(--ease-out);
}

.news-list li a:hover .news-item-arrow{
    transform: translateX(.4em);
}

/* =========================================
   CTA（共通）
========================================= */
.cta{
    padding: clamp(7rem, 14vw, 13rem) 0;
}

.cta-inner{
    width: 90%;
    max-width: 72rem;
    margin: 0 auto;
    text-align: center;
}

.cta-label{
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: .35em;
    color: var(--c-gray);
    margin-bottom: 2rem;
}

.cta-link{
    display: inline-block;
    text-decoration: none;
    color: inherit;
    font-family: var(--font-display);
    font-weight: 500;
    font-size: clamp(2.4rem, 8vw, 6.5rem);
    line-height: 1.1;
    text-transform: uppercase;
    letter-spacing: .01em;
    position: relative;
    transition: color .5s, letter-spacing .6s var(--ease-out);
}

.cta-link:hover{
    color: transparent;
    -webkit-text-stroke: 1.5px var(--c-white);
    letter-spacing: .04em;
}

.cta-note{
    margin-top: 2.5rem;
    font-size: .9rem;
    color: var(--c-gray);
}

/* =========================================
   Page Hero（下層ページ共通）
========================================= */
.page-hero{
    padding: calc(var(--header-h) + clamp(4rem, 9vw, 8rem)) 0 clamp(3rem, 6vw, 5rem);
}

.page-hero-inner{
    width: 90%;
    max-width: 72rem;
    margin: 0 auto;
}

.page-hero-label{
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: .35em;
    color: var(--c-gray);
    margin-bottom: 1.5rem;
}

.page-hero-title{
    font-family: var(--font-display);
    font-weight: 500;
    font-size: clamp(3.4rem, 11vw, 9rem);
    line-height: 1;
    text-transform: uppercase;
    letter-spacing: -.01em;
}

.page-hero-title .hero-line{
    display: block;
}

/* 一覧ページ本文エリア */
.archive-body{
    padding-bottom: clamp(6rem, 10vw, 9rem);
}

.page-hero-sub{
    margin-top: 2rem;
    font-size: clamp(.9rem, 1.6vw, 1.05rem);
    color: #3c3c3c;
}

/* =========================================
   Filter（カテゴリ選択）
========================================= */
.filter-bar{
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin: 3rem 0 4rem;
}

.filter-label{
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: .3em;
    color: var(--c-gray);
}

.category-select{
    appearance: none;
    -webkit-appearance: none;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--c-black);
    border-radius: 0;
    padding: .5em 2.5em .5em .2em;
    font-family: var(--font-display);
    font-size: 1rem;
    letter-spacing: .08em;
    color: var(--c-black);
    cursor: pointer;
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='7'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%230f0f0f' fill='none'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right .4em center;
}

/* もっと見る / 閉じる */
.list-btn{
    display: block;
    margin: 4rem auto 0;
    padding: 1em 3.5em;
    background: none;
    border: 1px solid var(--c-black);
    font-family: var(--font-display);
    font-size: .9rem;
    letter-spacing: .25em;
    color: var(--c-black);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: color .4s;
    z-index: 0;
}

.list-btn::before{
    content: '';
    position: absolute;
    inset: 0;
    background: var(--c-black);
    transform: scaleY(0);
    transform-origin: bottom;
    transition: transform .45s var(--ease-out);
    z-index: -1;
}

.list-btn:hover{
    color: var(--c-white);
}

.list-btn:hover::before{
    transform: scaleY(1);
}

.list-btn.is-hidden{
    display: none;
}

/* =========================================
   Portfolio（aboutページ）
========================================= */
.portfolio-hero .page-hero-title .split-char{
    color: transparent;
    -webkit-text-stroke: 1.5px var(--c-black);
}

.portfolio-hero .page-hero-title .hero-line--fill .split-char{
    color: var(--c-black);
    -webkit-text-stroke: 0;
}

.portfolio-hero-meta{
    display: flex;
    flex-wrap: wrap;
    gap: 1rem 3rem;
    margin-top: 2.5rem;
    font-family: var(--font-mono);
    font-size: 11.5px;
    letter-spacing: .2em;
    color: var(--c-gray);
}

.profile-grid{
    display: grid;
    grid-template-columns: 1fr 1.6fr;
    gap: 4rem;
    align-items: start;
}

.profile-side{
    position: sticky;
    top: calc(var(--header-h) + 2rem);
}

.profile-name-ja{
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: .2em;
}

.profile-role{
    font-family: var(--font-mono);
    font-size: 11.5px;
    letter-spacing: .2em;
    color: var(--c-gray);
    margin-top: .8rem;
}

.profile-text p{
    font-size: .95rem;
    color: #3c3c3c;
    margin-bottom: 1.8em;
}

/* Skills */
.skill-groups{
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem 2.5rem;
}

.skill-group{
    border-top: 1px solid var(--c-line-dark);
    padding-top: 1.6rem;
}

.skill-group-index{
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--c-gray);
    letter-spacing: .2em;
}

.skill-group-name{
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 500;
    margin: .6rem 0 1.4rem;
    letter-spacing: .05em;
}

.skill-tags{
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: .6rem;
}

.skill-tag{
    font-family: var(--font-mono);
    font-size: 12px;
    padding: .45em 1.1em;
    border: 1px solid var(--c-line-dark);
    border-radius: 100px;
    color: #cfcfcf;
    transition: background .4s, color .4s, border-color .4s;
}

.skill-tag:hover{
    background: var(--c-white);
    color: var(--c-black);
    border-color: var(--c-white);
}

/* =========================================
   Single（記事詳細 共通）
========================================= */
.article-container{
    width: 90%;
    max-width: 46rem;
    margin: 0 auto;
    padding: calc(var(--header-h) + clamp(3rem, 8vw, 6rem)) 0 clamp(6rem, 10vw, 9rem);
}

.article-label{
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: .35em;
    color: var(--c-gray);
    margin-bottom: 1.2rem;
}

.article-title{
    font-size: clamp(1.6rem, 4vw, 2.4rem);
    font-weight: 700;
    line-height: 1.5;
    letter-spacing: .04em;
}

.article-meta{
    display: flex;
    align-items: center;
    gap: 2rem;
    margin: 1.5rem 0 0;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--c-black);
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--c-gray);
}

.article-hero-img{
    margin: 3rem 0 0;
    overflow: hidden;
}

.article-hero-img img{
    width: 100%;
}

.article-back{
    margin-top: 4.5rem;
}

.article-cta{
    margin: 4rem 0 0;
    text-align: center;
}

/* 記事本文 */
.news-page-content{
    margin-top: 3rem;
    font-size: 16px;
    line-height: 2;
    color: #222;
    word-break: break-word;
}

.news-page-content h1,
.news-page-content h2,
.news-page-content h3,
.news-page-content h4{
    line-height: 1.5;
    margin: 3rem 0 1.2rem;
    font-weight: 700;
    letter-spacing: .04em;
}

.news-page-content h1{ font-size: 24px; }

.news-page-content h2{
    font-size: 21px;
    padding-left: .8em;
    border-left: 3px solid var(--c-black);
}

.news-page-content h3{ font-size: 18px; }
.news-page-content h4{ font-size: 16px; }

.news-page-content p{
    margin: 0 0 1.6rem;
    font-size: 16px;
}

.news-page-content ul,
.news-page-content ol{
    margin: 0 0 2rem 1.2rem;
    padding: 0;
}

.news-page-content li{
    margin: 0 0 .8rem;
    font-size: 16px;
}

.news-page-content img{
    max-width: 100%;
    height: auto;
    margin: 2rem 0;
    display: block;
}

.news-page-content a{
    color: var(--c-black);
    text-decoration: underline;
    text-underline-offset: .25em;
    word-break: break-all;
    transition: color .3s;
}

.news-page-content a:hover{
    color: var(--c-gray);
}

.news-page-content blockquote{
    border-left: 2px solid var(--c-line);
    padding-left: 1.5em;
    color: var(--c-gray);
    margin: 0 0 2rem;
}

.news-page-content pre{
    background: var(--c-black);
    color: var(--c-white);
    font-family: var(--font-mono);
    font-size: 13px;
    padding: 1.5em;
    overflow-x: auto;
    margin: 0 0 2rem;
}

/* =========================================
   Contact
========================================= */
.contact-form{
    width: 90%;
    max-width: 40rem;
    margin: 0 auto;
    padding-bottom: clamp(6rem, 10vw, 9rem);
}

.contact-form label{
    display: block;
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: .2em;
    color: var(--c-gray);
    margin-bottom: .6em;
}

.contact-form p{
    margin-bottom: 2rem;
}

.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form input[type="tel"],
.contact-form input[type="url"],
.contact-form textarea{
    width: 100%;
    padding: .9em .2em;
    font-family: var(--font-body);
    font-size: 16px;
    color: var(--c-black);
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--c-line);
    border-radius: 0;
    outline: none;
    transition: border-color .4s;
}

.contact-form input:focus,
.contact-form textarea:focus{
    border-bottom-color: var(--c-black);
}

.contact-form ::placeholder{
    color: #bbb;
}

.contact-form textarea{
    resize: none;
    min-height: 10em;
}

.form-submit{
    text-align: center;
    margin-top: 3rem;
}

.form-submit input[type="submit"]{
    padding: 1.1em 5em;
    font-family: var(--font-display);
    font-size: .95rem;
    letter-spacing: .3em;
    color: var(--c-white);
    background: var(--c-black);
    border: 1px solid var(--c-black);
    cursor: pointer;
    transition: background .4s, color .4s;
}

.form-submit input[type="submit"]:hover{
    background: transparent;
    color: var(--c-black);
}

.form-submit .wpcf7-spinner{
    position: absolute;
}

.wpcf7-not-valid-tip{
    font-size: 12px;
    color: #c00;
    margin-top: .5em;
    display: block;
}

/* =========================================
   404
========================================= */
.not-found-container{
    min-height: 100svh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--header-h) 5% 4rem;
}

.not-found-heading{
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(8rem, 30vw, 22rem);
    line-height: 1;
    color: transparent;
    -webkit-text-stroke: 2px var(--c-black);
}

.not-found-text{
    margin: 2rem 0 3rem;
    color: var(--c-gray);
}

/* =========================================
   Footer
========================================= */
.site-footer{
    background: var(--c-black);
    color: var(--c-white);
    padding-top: clamp(3rem, 6vw, 5rem);
}

.footer-marquee{
    border-top: 1px solid var(--c-line-dark);
    border-bottom: 1px solid var(--c-line-dark);
    padding: 1.4rem 0;
}

.footer-marquee .marquee-group{
    gap: 3.5rem;
    padding-right: 3.5rem;
}

.footer-marquee span{
    font-family: var(--font-display);
    font-size: clamp(1.4rem, 3vw, 2.2rem);
    font-weight: 500;
    letter-spacing: .1em;
    white-space: nowrap;
    color: transparent;
    -webkit-text-stroke: 1px rgba(255, 255, 255, .5);
}

.footer-marquee .marquee-dot{
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, .4);
    -webkit-text-stroke: 0;
    flex-shrink: 0;
}

.footer-wrapper{
    display: flex;
    justify-content: space-between;
    gap: 3rem;
    width: 90%;
    max-width: 72rem;
    margin: 0 auto;
    padding: clamp(4rem, 7vw, 6rem) 0;
}

.footer-logo{
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: .18em;
    text-decoration: none;
}

.footer-lead{
    margin-top: 1.5rem;
    font-size: .85rem;
    color: var(--c-gray);
}

.footer-sitemap{
    display: flex;
    flex-direction: column;
    gap: .4rem;
    text-align: right;
}

.footer-sitemap a{
    font-family: var(--font-display);
    font-size: 1rem;
    letter-spacing: .18em;
    text-decoration: none;
    color: var(--c-white);
    transition: color .3s, letter-spacing .4s var(--ease-out);
}

.footer-sitemap a:hover{
    color: var(--c-gray);
    letter-spacing: .3em;
}

.footer-bottom{
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 90%;
    max-width: 72rem;
    margin: 0 auto;
    padding: 1.5rem 0 2rem;
    border-top: 1px solid var(--c-line-dark);
}

.footer-copyright{
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: .15em;
    color: var(--c-gray);
}

.footer-totop{
    background: none;
    border: none;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: .2em;
    color: var(--c-white);
    cursor: pointer;
    transition: color .3s;
}

.footer-totop:hover{
    color: var(--c-gray);
}

/* =========================================
   Responsive
========================================= */
@media (max-width: 900px){
    .intro-text{
        columns: 1;
    }

    .service-item-inner{
        grid-template-columns: 3rem 1fr auto;
        gap: 1.2rem;
        padding: 2rem .5rem;
    }

    .service-desc{
        grid-column: 2 / 3;
    }

    .profile-grid{
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .profile-side{
        position: static;
    }

    .skill-groups{
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
}

@media (max-width: 600px){
    .site-header{
        padding: 0 1.4rem;
    }

    .hero-meta{
        padding: 0 1.4rem;
    }

    .hero-meta .hero-coords{
        display: none;
    }

    .news-list li a{
        flex-direction: column;
        gap: .4rem;
        padding: 1.4rem .5rem;
    }

    .news-item-arrow{
        display: none;
    }

    .works-cards{
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .footer-wrapper{
        flex-direction: column;
    }

    .footer-sitemap{
        text-align: left;
    }

    .footer-bottom{
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
}

/* =========================================
   Reduced Motion
========================================= */
@media (prefers-reduced-motion: reduce){
    *,
    *::before,
    *::after{
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
    }

    html{
        scroll-behavior: auto;
    }

    [data-split] .split-char,
    [data-reveal]{
        transform: none;
        opacity: 1;
        clip-path: none;
    }
}