@charset "UTF-8";

/* =========================================
   凱ビズ・オンライン合同会社 / STRATEGIA 
   全ページ共通カラールール ＆ ベース設定
========================================= */
:root {
  --color-primary: #DE5A14; 
  --color-accent: #ECA12A; 
  --color-secondary: #E0E0E0; 
  --color-bg-base: #FAFAFA; 
  --color-text-main: #333333; 
  --font-base: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', 'Meiryo', sans-serif;
}

body {
  background-color: var(--color-bg-base);
  color: var(--color-text-main);
  font-family: var(--font-base);
  line-height: 1.6;
  margin: 0;
  padding: 0;
}

/* =========================================
   全ページ共通：追尾ヘッダー
========================================= */
header {
  position: fixed;
  top: 0; left: 0; width: 100%; height: 150px;
  background-color: #FFFFFF;
  z-index: 1000;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 40px;
  box-sizing: border-box;
  transition: all 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}

header.is-scrolled {
  height: 70px;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(5px);
  box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.logo img { height: 80px; transition: height 0.4s ease; }
header.is-scrolled .logo img { height: 35px; }

nav ul { 
  list-style: none; 
  display: flex; 
  gap: 30px; 
  margin: 0; 
  padding: 0; /* メニューの右ズレを解消する中央揃えの要 */
}
nav a { text-decoration: none; color: var(--color-text-main); font-weight: bold; transition: color 0.3s; }
nav a:hover { color: var(--color-primary); }

/* =========================================
   全ページ共通：メインボタン（CTA）
========================================= */
.cta-section { 
  text-align: center; 
  padding: 150px 20px; 
  background-color: #FFF; 
  position: relative; 
  z-index: 2;
}

.btn-primary {
  display: inline-block;
  background-color: var(--color-primary);
  color: #FFFFFF;
  border: none;
  border-radius: 4px;
  padding: 12px 24px;
  font-weight: bold;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.3s ease; 
}

.btn-primary:hover {
  background-color: var(--color-accent);
}

/* =========================================
   スマホ向け（画面幅768px以下）ヘッダー共通対応
========================================= */
@media screen and (max-width: 768px) {
  header {
    flex-direction: column;
    justify-content: center;
    height: auto;
    padding: 15px 10px;
  }
  header.is-scrolled {
    height: auto;
    padding: 10px;
  }
  .logo img {
    height: 35px;
    margin-bottom: 10px;
  }
  nav ul {
    gap: 15px;
    font-size: 0.85rem;
    flex-wrap: wrap;
    justify-content: center;
    width: 100%; /* 全幅を使って確実に中央揃えにする */
  }
}