/* ===== Water Theme Palette =====
   深海〜浅瀬の5段階グラデーション。Bootstrap変数を上書きして
   btn-primary/bg-primary/リンク色等サイト全体に波及させる。 */
:root {
    --water-deep:    #023047;
    --water-primary: #0077b6;
    --water-accent:  #00b4d8;
    --water-light:   #90e0ef;
    --water-pale:    #caf0f8;

    --bs-primary: var(--water-primary);
    --bs-primary-rgb: 0, 119, 182;
    --bs-primary-text-emphasis: var(--water-deep);
    --bs-primary-bg-subtle: var(--water-pale);
    --bs-primary-border-subtle: var(--water-light);
    --bs-link-color: var(--water-primary);
    --bs-link-color-rgb: 0, 119, 182;
    --bs-link-hover-color: var(--water-deep);
    --bs-link-hover-color-rgb: 2, 48, 71;
}

/* ===== Base ===== */
body {
    font-family: 'Noto Sans JP', sans-serif;
    font-size: 0.95rem;
    background: linear-gradient(180deg, var(--water-pale) 0%, #f5f7fa 260px, #f5f7fa 100%);
    color: #212529;
}

/* ===== Navbar: 海のグラデーション ===== */
.bg-water-gradient {
    background: linear-gradient(115deg, var(--water-deep) 0%, var(--water-primary) 55%, var(--water-accent) 100%) !important;
}

/* ===== 波の区切り線（アニメーション） ===== */
.wave-divider {
    position: relative;
    height: 22px;
    margin-top: -1px;
    overflow: hidden;
    background: var(--water-accent);
}
.wave-divider svg {
    position: absolute;
    top: 0; left: 0;
    width: 200%;
    height: 100%;
    animation: wave-flow 14s linear infinite;
}
.wave-divider svg.wave-back {
    opacity: 0.55;
    animation-duration: 22s;
    animation-direction: reverse;
}
@keyframes wave-flow {
    from { transform: translateX(0); }
    to   { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) {
    .wave-divider svg { animation: none; }
}

/* ===== トップページ ヒーロー ===== */
.water-hero {
    border-radius: 1rem;
    overflow: hidden;
    background: linear-gradient(120deg, var(--water-deep) 0%, var(--water-primary) 60%, var(--water-accent) 100%);
    color: #fff;
    box-shadow: 0 4px 16px rgba(2,48,71,0.25);
}
.water-hero-inner {
    padding: 1.75rem 1.5rem 1.5rem;
    text-align: center;
}
.water-hero-inner h2 {
    font-weight: 700;
    font-size: 1.15rem;
    letter-spacing: 0.04em;
    margin-bottom: 1.1rem;
}
.water-hero-pillars {
    display: flex;
    justify-content: center;
    gap: 2rem;
}
.water-hero-pillars > div {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
}
.water-hero-pillars i {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    background: rgba(255,255,255,0.18);
    font-size: 1.4rem;
    border: 1px solid rgba(255,255,255,0.35);
}
.water-hero-pillars span {
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.08em;
}

/* ===== 水紋カード（サイト趣旨等）=====
   色付き上帯・左ボーダーを廃し、角の控えめな波紋のみで水を表現 */
.water-card {
    position: relative;
    background: #fff;
    border: 1px solid var(--water-light);
    overflow: hidden;
}
.water-card::before {
    content: "";
    position: absolute;
    top: -40px;
    right: -40px;
    width: 140px;
    height: 140px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--water-pale) 0%, rgba(202,240,248,0) 70%);
    pointer-events: none;
}
.water-card .water-card-body {
    position: relative;
    z-index: 1;
}
.water-card h4 {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}
.water-card h4 i {
    color: var(--water-accent);
    font-size: 1.1rem;
}
.water-card hr {
    border: none;
    height: 1px;
    background: var(--water-light);
    opacity: 0.6;
}

/* ===== キャッチコピー 3階層 ===== */
.water-copy-main {
    font-size: 1.3rem;
    font-weight: 800;
    line-height: 1.55;
    color: var(--water-deep);
    margin-bottom: 1rem;
    letter-spacing: 0.01em;
}
.water-copy-sub {
    display: block;
    width: 100%;
    box-sizing: border-box;
    font-size: 1rem;
    font-weight: 700;
    color: var(--water-primary);
    background: var(--water-pale);
    border-radius: 0.5rem;
    padding: 0.7rem 1rem;
    margin-bottom: 1.2rem;
    line-height: 1.6;
}
.water-copy-lead {
    font-size: 0.95rem;
    font-weight: 400;
    color: #3a4650;
    line-height: 1.9;
    margin-bottom: 0;
}
@media (max-width: 480px) {
    .water-copy-main { font-size: 1.15rem; }
}

/* ===== Bottom padding (mobile: for fixed bottom nav / desktop: for footer) ===== */
.pb-mobile {
    padding-bottom: 300px !important;
}
@media (min-width: 768px) {
    .pb-mobile {
        padding-bottom: 6rem !important;
    }
}

/* ===== Breadcrumb ===== */
.breadcrumb {
    font-size: 0.8rem;
    background: transparent;
    padding: 0;
    margin-bottom: 0.75rem;
}

/* ===== Card ===== */
.card {
    border: none;
    border-radius: 0.75rem;
    box-shadow: 0 1px 6px rgba(0,0,0,0.08);
}
.card-header {
    background: #fff;
    border-bottom: 1px solid #f0f0f0;
    border-radius: 0.75rem 0.75rem 0 0 !important;
    font-weight: 600;
}

/* ===== Table ===== */
.table th {
    font-size: 0.8rem;
    white-space: nowrap;
}
.table td {
    vertical-align: middle;
    font-size: 0.88rem;
}

/* ===== Article card (mobile list) ===== */
.article-card {
    background: #fff;
    border-radius: 0.75rem;
    padding: 1rem;
    margin-bottom: 0.75rem;
    box-shadow: 0 1px 6px rgba(0,0,0,0.07);
    border-left: 4px solid var(--water-accent);
}
.article-card .article-theme {
    font-weight: 600;
    font-size: 1rem;
    color: #212529;
    margin-bottom: 0.25rem;
}
.article-card .article-meta {
    font-size: 0.78rem;
    color: #6c757d;
}
.article-card .article-actions {
    margin-top: 0.75rem;
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

/* ===== Forms ===== */
.form-label {
    font-weight: 500;
    font-size: 0.9rem;
    margin-bottom: 0.3rem;
}
.form-control, .form-select {
    border-radius: 0.5rem;
    font-size: 1rem;
    padding: 0.55rem 0.75rem;
}
.form-control:focus, .form-select:focus {
    border-color: #0d6efd;
    box-shadow: 0 0 0 0.2rem rgba(13,110,253,0.15);
}

/* ===== Buttons ===== */
.btn {
    border-radius: 0.5rem;
}
.btn-sm {
    font-size: 0.8rem;
    padding: 0.3rem 0.65rem;
}

/* ===== Flash messages ===== */
.message {
    border-radius: 0.5rem;
    padding: 0.75rem 1rem;
    margin: 0.5rem 0;
}

/* ===== Pagination ===== */
.page-link {
    font-size: 0.85rem;
    border-radius: 0.4rem !important;
}

/* ===== View detail rows ===== */
.detail-label {
    font-weight: 600;
    font-size: 0.85rem;
    color: #6c757d;
    min-width: 100px;
}

/* ===== Asc/Desc sort ===== */
.asc a::after  { content: " ↓"; }

/* ===== DebugKit ツールバー非表示 ===== */
#debug-kit-toolbar { display: none !important; }
.desc a::after { content: " ↑"; }


/* ===== Top page content width ===== */
.page-content {
    margin: 0 auto;
}
@media (min-width: 1200px) {
    .page-content {
        max-width: 800px;
    }
}