@charset "UTF-8";

/* =========================================
   Base Setup (CRAFT AUTO)
   ========================================= */
:root {
    --bg-color: #1a1a1a;    /* ほぼ黒に近いグレー */
    --card-bg: #252525;     /* カード背景 */
    --text-main: #e0e0e0;   /* 白に近いグレー */
    --text-muted: #888888;
    --accent: #ffcc00;      /* インダストリアルイエロー */
    --font-en: 'Oswald', sans-serif; /* 太くて強い英字フォント */
    --font-jp: 'Noto Sans JP', sans-serif;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-jp);
    line-height: 1.8;
    letter-spacing: 0.05em;
    overflow-x: hidden;
}

a { text-decoration: none; color: inherit; transition: 0.3s; }
img { width: 100%; height: 100%; object-fit: cover; display: block; }
ul { list-style: none; }

/* 英語見出し（Oswald） */
.en {
    font-family: var(--font-en);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 500;
}

/* 斜めラインの装飾 */
.slash-bg {
    position: relative;
    z-index: 1;
}
.slash-bg::before {
    content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background: var(--card-bg);
    transform: skewY(-3deg); /* 斜めに傾ける */
    z-index: -1;
    transform-origin: top left;
}

/* アニメーション */
.fade-in {
    opacity: 0; transform: translateY(20px); transition: all 0.8s ease;
}
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* =========================================
   Header
   ========================================= */
.header {
    position: fixed;
    top: 0; left: 0; width: 100%;
    padding: 1.5rem 4%;
    display: flex; justify-content: space-between; align-items: center;
    z-index: 1000;
    background: rgba(26, 26, 26, 0.9);
    border-bottom: 2px solid #333;
}

.logo {
    font-family: var(--font-en);
    font-size: 1.8rem;
    font-weight: 700;
    color: #fff;
    font-style: italic; /* スピード感 */
}
.logo span { color: var(--accent); }

.nav ul { display: flex; gap: 2.5rem; }
.nav a {
    font-family: var(--font-en);
    font-size: 1.1rem;
    color: #fff;
    position: relative;
}
.nav a::after {
    content: ''; position: absolute; bottom: -5px; left: 0; width: 0; height: 3px;
    background: var(--accent); transition: 0.3s; skewX(-20deg);
}
.nav a:hover { color: var(--accent); }
.nav a:hover::after, .nav a.active::after { width: 100%; }

.btn-contact {
    background: var(--accent); color: #000 !important;
    padding: 0.5rem 1.5rem; font-weight: 700;
    transform: skewX(-20deg); /* ボタン自体を斜めに */
    display: inline-block;
}
.btn-contact span {
    display: block; transform: skewX(20deg); /* 文字の傾きを戻す */
}
.btn-contact:hover { background: #fff; }

.hamburger { display: none; cursor: pointer; }
.hamburger span { display: block; width: 30px; height: 3px; background: #fff; margin: 6px 0; }

/* =========================================
   Hero Section
   ========================================= */
.hero {
    height: 90vh;
    position: relative;
    overflow: hidden;
    display: flex; align-items: center;
    padding: 0 10%;
}
.hero-bg {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background-size: cover; background-position: center;
    z-index: -1;
    filter: brightness(0.4); /* 暗くして文字を目立たせる */
}
/* グリッド模様のオーバーレイ */
.hero::after {
    content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background-image: linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
}

.hero-content { z-index: 2; width: 100%; max-width: 1200px; }
.hero-tag {
    color: var(--accent); font-weight: 700; letter-spacing: 0.2em;
    margin-bottom: 1rem; display: block;
}
.hero-title {
    font-family: var(--font-en);
    font-size: 5rem;
    font-weight: 700;
    line-height: 1;
    color: #fff;
    margin-bottom: 2rem;
    text-transform: uppercase;
}
.hero-btn {
    display: inline-block; border: 2px solid #fff; color: #fff;
    padding: 1rem 3rem; font-family: var(--font-en); font-size: 1.2rem;
    transition: 0.3s;
}
.hero-btn:hover { background: var(--accent); border-color: var(--accent); color: #000; }

/* =========================================
   Common Components
   ========================================= */
.section { padding: 8rem 5%; position: relative; }
.container { max-width: 1100px; margin: 0 auto; }

.section-title {
    margin-bottom: 4rem;
    border-left: 5px solid var(--accent);
    padding-left: 1.5rem;
}
.section-title span {
    display: block; color: var(--accent); font-size: 1rem; letter-spacing: 0.2em; margin-bottom: 0.5rem;
}
.section-title h2 {
    font-size: 2.5rem; color: #fff; line-height: 1.2;
}

/* Service Cards */
.card-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem;
}
.service-card {
    background: var(--card-bg);
    border: 1px solid #333;
    transition: 0.3s;
    position: relative;
    overflow: hidden;
}
.service-card:hover { border-color: var(--accent); transform: translateY(-5px); }
.service-img { height: 250px; filter: grayscale(50%); transition: 0.5s; }
.service-card:hover .service-img { filter: grayscale(0%); }
.service-body { padding: 2rem; }
.service-num {
    font-family: var(--font-en); font-size: 3rem; color: rgba(255,255,255,0.05);
    position: absolute; top: 1rem; right: 1rem; font-weight: 700; line-height: 1;
}
.service-title { font-size: 1.4rem; color: #fff; margin-bottom: 1rem; font-weight: 700; }
.service-text { font-size: 0.9rem; color: var(--text-muted); }

/* Works Gallery */
.works-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2px; }
.work-item { position: relative; height: 350px; overflow: hidden; group; }
.work-item img { transition: 0.5s; filter: brightness(0.7); }
.work-item:hover img { transform: scale(1.1); filter: brightness(1); }
.work-overlay {
    position: absolute; bottom: 0; left: 0; width: 100%; padding: 2rem;
    background: linear-gradient(to top, rgba(0,0,0,0.9), transparent);
}
.work-cat { color: var(--accent); font-size: 0.8rem; font-weight: 700; }
.work-title { color: #fff; font-size: 1.5rem; font-weight: 700; }

/* Sub Page Header */
.page-header {
    height: 40vh;
    display: flex; align-items: flex-end;
    padding: 0 10% 4rem;
    position: relative;
    background: #111;
    border-bottom: 5px solid var(--accent);
}
.page-header::before {
    /* ストライプパターン */
    content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background: repeating-linear-gradient(45deg, #1a1a1a, #1a1a1a 10px, #222 10px, #222 20px);
    z-index: 0;
}
.page-title {
    position: relative; z-index: 1;
    color: #fff; font-family: var(--font-en); font-size: 4rem; line-height: 1;
}
.page-sub {
    color: var(--accent); font-size: 1rem; display: block; margin-bottom: 0.5rem; letter-spacing: 0.2em;
}

/* Company Table */
.company-table { width: 100%; border-collapse: collapse; margin-top: 2rem; }
.company-table th, .company-table td {
    padding: 1.5rem; border-bottom: 1px solid #333; text-align: left;
}
.company-table th { width: 30%; color: var(--text-muted); font-weight: normal; }
.company-table td { color: #fff; }

/* Form */
.form-dark { max-width: 700px; margin: 0 auto; }
input, textarea, select {
    width: 100%; padding: 1rem; border: 1px solid #444; background: #222;
    color: #fff; margin-bottom: 1.5rem; font-family: inherit;
}
input:focus, textarea:focus { border-color: var(--accent); outline: none; }
.btn-submit {
    width: 100%; padding: 1.2rem; background: var(--accent); color: #000;
    border: none; font-weight: 700; font-size: 1.1rem; cursor: pointer;
    text-transform: uppercase; letter-spacing: 0.1em;
}
.btn-submit:hover { background: #fff; }

/* Footer */
.footer {
    background: #000; padding: 5rem 5% 2rem; border-top: 1px solid #333;
}
.footer-logo { font-family: var(--font-en); font-size: 2rem; font-weight: 700; color: #fff; margin-bottom: 1rem; }
.footer-logo span { color: var(--accent); }
.footer-info { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 3rem; }
.copyright { text-align: center; font-size: 0.8rem; color: #555; border-top: 1px solid #222; padding-top: 2rem; }

/* Responsive */
@media (max-width: 768px) {
    .nav { display: none; }
    .hamburger { display: block; }
    .hero { padding: 0 5%; }
    .hero-title { font-size: 3rem; }
    .works-grid { grid-template-columns: 1fr; }
    .page-title { font-size: 2.5rem; }
}