/* MOBO フォントの定義 */
@font-face {
    font-family: 'MOBO';
    src: url('../fonts/MOBO-Regular.otf') format('opentype');
    font-weight: 400;
    font-style: normal;
}

@font-face {
    font-family: 'MOBO';
    src: url('../fonts/MOBO-ExtraLight.otf') format('opentype');
    font-weight: 200;
    font-style: normal;
}

@font-face {
    font-family: 'MOBO';
    src: url('../fonts/MOBO-SemiBold.otf') format('opentype');
    font-weight: 600;
    font-style: normal;
}

@font-face {
    font-family: 'MOBO';
    src: url('../fonts/MOBO-Bold.otf') format('opentype');
    font-weight: 700;
    font-style: normal;
}

/* ロゴの雰囲気に合わせたカスタム設定 */
:root {
    --color-rails-tokyo-base: #EFDFD3;
    --color-rails-tokyo-green: #79B6B9;
    --color-rails-tokyo-dark-green: #2D433E;
    --color-rails-tokyo-red: #79B6B9;
    --color-teal: #2D6A6C;
    --color-teal-dark: #245557;
    --color-ruby: #E53170;
    --color-ruby-dark: #c2255c;
}

body {
    font-family: 'MOBO', sans-serif;
    background-color: #EFDFD3;
    color: var(--color-teal);
}

h1, h2, h3 {
    font-family: 'MOBO', sans-serif;
    font-weight: 600;
}

.bg-rails-tokyo {
    background-color: var(--color-rails-tokyo-base);
}

.bg-teal {
    background-color: var(--color-teal);
}

.text-teal {
    color: var(--color-teal);
}

.text-ruby {
    color: var(--color-ruby);
}

.border-teal {
    border-color: var(--color-teal);
}

.btn-ruby {
    background-color: var(--color-ruby);
    color: white;
    transition: background-color 0.3s ease;
}

.btn-ruby:hover {
    background-color: var(--color-ruby-dark);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-teal);
    border: 2px solid var(--color-teal);
    transition: all 0.3s ease;
}

.btn-outline:hover {
    background-color: var(--color-teal);
    color: white;
}

/* リンクのスタイル */
a {
    color: var(--color-ruby);
    text-decoration: underline;
    text-decoration-color: rgba(229, 49, 112, 0.3);
    text-underline-offset: 2px;
    transition: all 0.3s ease;
}

a:hover {
    color: var(--color-ruby-dark);
    text-decoration-color: var(--color-ruby-dark);
}

/* ヘッダーのナビゲーションリンクは下線なし */
header nav a {
    text-decoration: none;
}

header nav a:hover {
    color: var(--color-ruby);
}