/* タイポグラフィ */
h1, .h1 { font-size: 2.25rem; font-weight: 700; line-height: 2.5rem; }
h2, .h2 { font-size: 1.875rem; font-weight: 600; line-height: 2.25rem; }
h3, .h3 { font-size: 1.5rem; font-weight: 600; line-height: 2rem; }
h4, .h4 { font-size: 1.25rem; font-weight: 600; line-height: 1.75rem; }
h5, .h5 { font-size: 1.125rem; font-weight: 600; line-height: 1.5rem; }
h6, .h6 { font-size: 1rem; font-weight: 600; line-height: 1.5rem; }
p { font-size: 1rem; line-height: 1.75rem; }

/* スペーシング */
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.mt-5 { margin-top: 2rem; }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mb-5 { margin-bottom: 2rem; }
.p-0 { padding: 0; }
.p-1 { padding: 0.25rem; }
.p-2 { padding: 0.5rem; }
.p-3 { padding: 1rem; }
.p-4 { padding: 1.5rem; }
.p-5 { padding: 2rem; }

/* 色 */
:root {
  --primary-color: rgb(26, 187, 194);
  --secondary-color: #6B7280;
  --bs-border-radius: 0.575rem;
  --bs-btn-padding-y: 0.75rem;
  --bs-btn-padding-x: 1.75rem;
}

/* ロゴ */
.logo {
    height: 50px;
}

.text-primary { color: var(--primary-color); }
.text-secondary { color: var(--secondary-color); }

/* シャドウ */
.shadow-sm { box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05); }
.shadow { box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06); }
.shadow-lg { box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05); }

/* カード */
.card {
  border: none;
  border-radius: 0.5rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.card-body{
    padding: 1.5rem;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 15px rgba(0, 0, 0, 0.15);
}

/* ボタン */

.btn{
    display: inline-block;
    padding: 0.75rem 1.75rem;
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.5;
    color: #fff;
    background-color: var(--primary-color);
    border: none;
    border-radius: var(--bs-border-radius);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    cursor: pointer;
    text-align: center;
    text-decoration: none;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

.btn-primary {
    --btn-primary-bg: rgb(26, 187, 194);
    --btn-primary-hover-bg: rgb(20, 150, 155);
    --btn-primary-active-bg: rgb(15, 120, 125);
    --btn-primary-border: none;
    --btn-primary-color: #fff;

    display: inline-block;
    padding: 0.75rem 1.75rem;
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.5;
    color: var(--btn-primary-color);
    background-color: var(--btn-primary-bg);
    border: var(--btn-primary-border);
    border-radius: var(--bs-border-radius);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    cursor: pointer;
    text-align: center;
    text-decoration: none;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

.btn-primary:hover {
    background-color: var(--btn-primary-hover-bg);
    box-shadow: 0 6px 10px rgba(0, 0, 0, 0.15);
}

.btn-primary:focus {
    outline: none;
    box-shadow: 0 0 0 4px rgba(26, 187, 194, 0.4);
}

.btn-primary:active {
    background-color: var(--btn-primary-active-bg);
    box-shadow: inset 0 3px 5px rgba(0, 0, 0, 0.125);
}

.btn-primary:disabled {
    background-color: rgb(190, 230, 233);
    cursor: not-allowed;
    opacity: 0.65;
    box-shadow: none;
}