@charset "UTF-8";

/* =========================================
   Base Setup (NEXT REHA)
   ========================================= */
:root {
    --bg-color: #f4f5f7;   /* クールグレー */
    --navy: #102a43;       /* メイン：信頼のネイビー */
    --orange: #f37021;     /* アクセント：活力のオレンジ */
    --text-main: #333333;
    --text-white: #ffffff;
    --font-en: 'Roboto', sans-serif; /* スポーティな英語フォント */
    --font-jp: 'Noto Sans JP', sans-serif; /* 可読性重視 */
    --sidebar-width: 280px;
}

* { 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: 0.03em;
    overflow-x: hidden; /* 横スクロール防止 */
}

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

/* 英語フォント */
.en { font-family: var(--font-en); font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; }

/* アニメーション（スライドイン） */
.slide-in {
    opacity: 0;
    transform: translateX(30px);
    transition: all 0.8s cubic-bezier(0.25, 1, 0.5, 1);
}
.slide-in.visible {
    opacity: 1;
    transform: translateX(0);
}

/* =========================================
   Sidebar Layout (PC)
   ========================================= */
.sidebar {
    position: fixed;
    top: 0; left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--navy);
    color: var(--text-white);
    padding: 3rem 2rem;
    z-index: 100;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.logo {
    font-family: var(--font-en);
    font-size: 2rem;
    font-weight: 900;
    line-height: 1;
    color: var(--text-white);
    border-left: 5px solid var(--orange);
    padding-left: 15px;
}
.logo span { font-size: 0.8rem; font-weight: 400; display: block; margin-top: 5px; opacity: 0.7; }

.nav ul { display: flex; flex-direction: column; gap: 1.5rem; margin-top: 3rem; }
.nav a {
    font-family: var(--font-en);
    font-size: 1.1rem;
    color: rgba(255,255,255,0.6);
    display: flex; align-items: center; justify-content: space-between;
}
.nav a:hover, .nav a.active { color: var(--text-white); }
.nav a:hover::after, .nav a.active::after {
    content: '▶'; color: var(--orange); font-size: 0.8rem;
}

.sidebar-footer { font-size: 0.8rem; color: rgba(255,255,255,0.4); }

.hamburger { display: none; } /* PCでは非表示 */

/* メインコンテンツエリア */
.main-content {
    margin-left: var(--sidebar-width); /* サイドバーの分空ける */
    width: calc(100% - var(--sidebar-width));
    min-height: 100vh;
}

/* =========================================
   Hero Section (Slash Design)
   ========================================= */
.hero {
    height: 80vh;
    position: relative;
    overflow: hidden;
    background: #000;
}
.hero-bg {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background-size: cover; background-position: center;
    opacity: 0.7;
    /* 斜めにカット */
    clip-path: polygon(0 0, 100% 0, 100% 85%, 0 100%);
}
.hero-text {
    position: absolute;
    bottom: 20%; left: 10%;
    color: #fff;
    z-index: 2;
}
.hero-title {
    font-family: var(--font-en);
    font-size: 4.5rem;
    font-weight: 900;
    line-height: 1;
    margin-bottom: 1rem;
    font-style: italic; /* スピード感 */
}
.hero-title span { color: var(--orange); }
.hero-sub {
    font-size: 1.2rem;
    background: rgba(16, 42, 67, 0.8);
    display: inline-block;
    padding: 0.5rem 1.5rem;
    border-left: 4px solid var(--orange);
}

/* =========================================
   Common Components
   ========================================= */
.section { padding: 6rem 8%; }
.container { max-width: 1100px; margin: 0 auto; }

.section-header {
    margin-bottom: 4rem;
    display: flex; align-items: baseline; gap: 1.5rem;
    border-bottom: 2px solid #ddd;
    padding-bottom: 1rem;
}
.section-header h2 {
    font-family: var(--font-en); font-size: 3rem; color: var(--navy); line-height: 1;
}
.section-header span {
    font-weight: 700; color: var(--orange); font-size: 1rem;
}

/* Cards (Functional) */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }

.service-card {
    background: #fff;
    border-top: 4px solid var(--navy);
    padding: 2rem;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: 0.3s;
}
.service-card:hover {
    border-color: var(--orange);
    transform: translateY(-5px);
}
.card-num {
    font-family: var(--font-en); font-size: 2.5rem; font-weight: 900; color: #eee;
    margin-bottom: -1rem; display: block;
}
.card-title { font-size: 1.4rem; margin-bottom: 1rem; color: var(--navy); font-weight: 700; }

/* Buttons */
.btn-solid {
    display: inline-block; background: var(--navy); color: #fff;
    padding: 1.2rem 3rem; font-weight: 700;
    position: relative; overflow: hidden; z-index: 1;
    border: none; cursor: pointer;
}
.btn-solid::before {
    content: ''; position: absolute; top: 0; left: 0; width: 0; height: 100%;
    background: var(--orange); z-index: -1; transition: 0.4s;
    transform: skewX(-20deg); transform-origin: left;
}
.btn-solid:hover::before { width: 120%; }

/* =========================================
   Sub Pages
   ========================================= */
.page-header {
    background: var(--navy);
    padding: 6rem 8% 4rem;
    color: #fff;
    position: relative;
    clip-path: polygon(0 0, 100% 0, 100% 85%, 0 100%);
    margin-bottom: 4rem;
}
.page-title {
    font-family: var(--font-en); font-size: 3rem; font-weight: 900; font-style: italic;
}
.page-sub { color: var(--orange); font-weight: 700; }

/* Flow Steps */
.step-row {
    display: flex; gap: 3rem; align-items: flex-start; margin-bottom: 4rem;
    background: #fff; padding: 2rem; border-left: 5px solid var(--orange);
}
.step-num {
    font-family: var(--font-en); font-size: 3rem; font-weight: 900; color: var(--navy);
    line-height: 1; min-width: 80px;
}

/* Staff Grid */
.staff-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 2rem; }
.staff-card { background: #fff; }
.staff-img { height: 300px; filter: grayscale(100%); transition: 0.3s; }
.staff-card:hover .staff-img { filter: grayscale(0%); }
.staff-info { padding: 1.5rem; border-bottom: 3px solid var(--navy); }
.staff-role { color: var(--orange); font-size: 0.8rem; font-weight: 700; display: block; }
.staff-name { font-size: 1.2rem; font-weight: 700; }

/* Form */
.form-sharp { max-width: 700px; margin: 0 auto; }
input, textarea, select {
    width: 100%; padding: 1rem; border: 1px solid #ddd; background: #fff;
    margin-bottom: 1.5rem; font-family: inherit; border-radius: 0; /* 角丸なし */
}
input:focus, textarea:focus { border-color: var(--orange); outline: none; border-left: 4px solid var(--orange); }

/* Footer */
.footer {
    background: #0b1d2e; color: #fff; padding: 4rem 8%;
}

/* Responsive (Mobile) */
@media (max-width: 992px) {
    /* サイドバーをヘッダーに変更 */
    .sidebar {
        width: 100%; height: 70px;
        flex-direction: row; align-items: center;
        padding: 0 5%;
        position: fixed; top: 0; left: 0;
        z-index: 999;
    }
    .logo { font-size: 1.5rem; border-left: 3px solid var(--orange); }
    .logo span, .sidebar-footer { display: none; }
    
    .nav {
        display: none; /* ハンバーガーで開閉 */
        position: absolute; top: 70px; left: 0; width: 100%;
        background: var(--navy); padding: 2rem;
    }
    .hamburger {
        display: block; cursor: pointer;
    }
    .hamburger span {
        display: block; width: 30px; height: 3px; background: #fff; margin: 6px 0;
    }

    /* コンテンツエリアのリセット */
    .main-content { margin-left: 0; width: 100%; padding-top: 70px; }
    
    .hero-title { font-size: 3rem; }
    .grid-3 { grid-template-columns: 1fr; }
    .step-row { flex-direction: column; gap: 1rem; }
    .section-header { flex-direction: column; gap: 0.5rem; align-items: flex-start; }
}