/*
 * NK Base Theme - components.css
 * ボタン・カード・フォーム・FAQ・CTA等の共通コンポーネント
 */

/* ============================================================
   ボタン
   ============================================================ */
.nk-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    padding: .75rem 2rem;
    font-weight: 600;
    font-size: 0.9375rem;
    line-height: 1.4;
    border-radius: var(--nk-radius-sm);
    text-decoration: none;
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--nk-transition);
    white-space: nowrap;
    font-family: inherit;
}

.nk-btn--sm  { padding: .5rem 1.25rem; font-size: 0.875rem; }
.nk-btn--lg  { padding: 1rem 2.5rem;   font-size: 1.0625rem; }
.nk-btn--xl  { padding: 1.25rem 3rem;  font-size: 1.125rem; }
.nk-btn--full{ width: 100%; }

/* Primary */
.nk-btn--primary {
    background: var(--nk-btn);
    color: var(--nk-btn-text);
    border-color: var(--nk-btn);
}
.nk-btn--primary:hover {
    background: color-mix(in srgb, var(--nk-btn) 85%, black);
    border-color: color-mix(in srgb, var(--nk-btn) 85%, black);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: var(--nk-shadow-md);
}

/* Secondary */
.nk-btn--secondary {
    background: var(--nk-secondary);
    color: #fff;
    border-color: var(--nk-secondary);
}
.nk-btn--secondary:hover {
    background: color-mix(in srgb, var(--nk-secondary) 85%, black);
    color: #fff;
}

/* Accent */
.nk-btn--accent {
    background: var(--nk-accent);
    color: #fff;
    border-color: var(--nk-accent);
}
.nk-btn--accent:hover {
    background: color-mix(in srgb, var(--nk-accent) 85%, black);
    color: #fff;
}

/* Outline */
.nk-btn--outline {
    background: transparent;
    color: var(--nk-primary);
    border-color: var(--nk-primary);
}
.nk-btn--outline:hover {
    background: var(--nk-primary);
    color: #fff;
}

.nk-btn--outline-white {
    background: transparent;
    color: #fff;
    border-color: #fff;
}
.nk-btn--outline-white:hover {
    background: #fff;
    color: var(--nk-primary);
}

/* Ghost */
.nk-btn--ghost {
    background: transparent;
    color: var(--nk-text);
    border-color: var(--nk-border);
}
.nk-btn--ghost:hover {
    background: var(--nk-bg-light);
    border-color: var(--nk-text-muted);
}

/* Tel */
.nk-btn--tel {
    background: var(--nk-accent);
    color: #fff;
    border-color: var(--nk-accent);
}
.nk-btn--tel:hover {
    background: color-mix(in srgb, var(--nk-accent) 85%, black);
    color: #fff;
}

/* ============================================================
   タグ・ラベル
   ============================================================ */
.nk-tag {
    display: inline-flex;
    align-items: center;
    padding: .2rem .75rem;
    font-size: 0.8125rem;
    font-weight: 600;
    border-radius: var(--nk-radius-full);
    text-decoration: none;
    transition: var(--nk-transition);
    background: var(--nk-bg-light);
    color: var(--nk-text);
    border: 1px solid var(--nk-border);
}
.nk-tag--sm    { font-size: 0.75rem; padding: .1rem .5rem; }
.nk-tag--primary { background: var(--nk-primary); color: #fff; border-color: var(--nk-primary); }
.nk-tag a { color: inherit; text-decoration: none; }
.nk-tag:hover { background: var(--nk-primary); color: #fff; border-color: var(--nk-primary); }

/* ============================================================
   投稿カード
   ============================================================ */
.nk-post-card {
    background: #fff;
    border-radius: var(--nk-radius-md);
    overflow: hidden;
    box-shadow: var(--nk-shadow-sm);
    transition: var(--nk-transition-slow);
    display: flex;
    flex-direction: column;
}
.nk-post-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--nk-shadow-lg);
}
.nk-post-card__thumbnail {
    aspect-ratio: 3/2;
    overflow: hidden;
    margin: 0;
}
.nk-post-card__thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .4s ease;
}
.nk-post-card:hover .nk-post-card__thumbnail img {
    transform: scale(1.05);
}
.nk-post-card__body {
    padding: var(--nk-space-md);
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: .5rem;
}
.nk-post-card__cats { display: flex; gap: .4rem; flex-wrap: wrap; }
.nk-post-card__title {
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.5;
    flex: 1;
}
.nk-post-card__title a {
    color: var(--nk-text);
    text-decoration: none;
}
.nk-post-card__title a:hover { color: var(--nk-primary); }
.nk-post-card__excerpt {
    font-size: 0.875rem;
    color: var(--nk-text-muted);
    line-height: 1.6;
    overflow: hidden;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
}
.nk-post-card__meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.8125rem;
    color: var(--nk-text-muted);
    margin-top: auto;
    padding-top: .75rem;
    border-top: 1px solid var(--nk-border);
}

/* ============================================================
   お知らせ一覧（テーブル形式）
   ============================================================ */
.nk-news-list { list-style: none; padding: 0; }
.nk-news-list__item + .nk-news-list__item {
    border-top: 1px solid var(--nk-border);
}
.nk-news-list__link {
    display: flex;
    align-items: baseline;
    gap: 1rem;
    padding: .875rem 0;
    color: var(--nk-text);
    text-decoration: none;
    transition: var(--nk-transition);
}
.nk-news-list__link:hover { color: var(--nk-primary); }
.nk-news-list__date {
    font-size: 0.875rem;
    color: var(--nk-text-muted);
    flex-shrink: 0;
    font-family: var(--nk-font-en);
}
.nk-news-list__cat {
    font-size: 0.75rem;
    font-weight: 600;
    background: var(--nk-primary);
    color: #fff;
    padding: .1em .6em;
    border-radius: var(--nk-radius-full);
    flex-shrink: 0;
    white-space: nowrap;
}
.nk-news-list__title { flex: 1; line-height: 1.5; }

/* お知らせ詳細一覧ページ */
.nk-news-item {
    border-bottom: 1px solid var(--nk-border);
}
.nk-news-item__link {
    display: flex;
    align-items: baseline;
    gap: 1rem;
    padding: 1rem 0;
    color: var(--nk-text);
    text-decoration: none;
}
.nk-news-item__link:hover { color: var(--nk-primary); }
.nk-news-item__date { font-size: 0.875rem; color: var(--nk-text-muted); flex-shrink: 0; }
.nk-news-item__cat {
    font-size: 0.75rem; font-weight: 600;
    background: var(--nk-primary); color: #fff;
    padding: .1em .6em; border-radius: var(--nk-radius-full);
    flex-shrink: 0;
}
.nk-news-item__title { flex: 1; }

/* ============================================================
   FAQ アコーディオン
   ============================================================ */
.nk-faq { display: flex; flex-direction: column; gap: 0; }

.nk-faq__item {
    border: 1px solid var(--nk-border);
    border-radius: var(--nk-radius-md);
    overflow: hidden;
    margin-bottom: .75rem;
    background: #fff;
}

.nk-faq__question {
    width: 100%;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    background: none;
    border: none;
    text-align: left;
    font-size: 0.9375rem;
    font-weight: 600;
    cursor: pointer;
    transition: background .2s;
}
.nk-faq__question:hover { background: var(--nk-bg-light); }

.nk-faq__q-mark {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    background: var(--nk-primary);
    color: #fff;
    border-radius: 50%;
    font-weight: 700;
    font-size: 1rem;
    flex-shrink: 0;
}
.nk-faq__q-text { flex: 1; padding-top: .25rem; line-height: 1.5; }

.nk-faq__toggle {
    width: 1.5rem;
    height: 1.5rem;
    position: relative;
    flex-shrink: 0;
    margin-top: .25rem;
}
.nk-faq__toggle::before,
.nk-faq__toggle::after {
    content: '';
    position: absolute;
    background: var(--nk-text-muted);
    border-radius: 2px;
    transition: transform .3s ease;
}
.nk-faq__toggle::before {
    width: 100%; height: 2px;
    top: 50%; left: 0;
    transform: translateY(-50%);
}
.nk-faq__toggle::after {
    width: 2px; height: 100%;
    top: 0; left: 50%;
    transform: translateX(-50%);
}
.nk-faq__question[aria-expanded="true"] .nk-faq__toggle::after {
    transform: translateX(-50%) rotate(90deg);
    opacity: 0;
}

.nk-faq__answer {
    padding: 0 1.5rem 1.5rem;
    padding-left: calc(1.5rem + 2rem + 1rem);
    font-size: 0.9375rem;
    line-height: 1.8;
    color: var(--nk-text);
}
.nk-faq__answer[hidden] { display: none; }

.nk-faq__a-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem; height: 2rem;
    background: var(--nk-accent);
    color: #fff;
    border-radius: 50%;
    font-weight: 700;
    margin-right: .75rem;
    vertical-align: middle;
    float: left;
    margin-top: .1rem;
}

/* ============================================================
   CTA セクション
   ============================================================ */
.nk-cta-section {
    background: var(--nk-primary);
    color: #fff;
    padding-block: var(--nk-space-2xl);
}

.nk-cta-section--dark {
    background: var(--nk-bg-dark);
}

.nk-cta-section__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--nk-space-xl);
    flex-wrap: wrap;
}

.nk-cta-section__heading {
    color: #fff;
    font-size: clamp(1.4rem, 3vw, 2rem);
    margin: 0;
}
.nk-cta-section__sub {
    color: rgba(255,255,255,.8);
    margin-top: .5rem;
    margin-bottom: 0;
}

.nk-cta-section__btns {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    flex-shrink: 0;
}

@media (max-width: 768px) {
    .nk-cta-section__inner { flex-direction: column; text-align: center; }
    .nk-cta-section__btns { justify-content: center; }
}

/* ============================================================
   ヒーローセクション
   ============================================================ */
.nk-hero {
    min-height: clamp(400px, 60vh, 700px);
    display: flex;
    align-items: center;
    position: relative;
    background: linear-gradient(135deg, var(--nk-primary) 0%, var(--nk-secondary) 100%);
    color: #fff;
    overflow: hidden;
}

.nk-hero--bg-image {
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.nk-hero__overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,.45);
    z-index: 1;
}

.nk-hero .container,
.nk-hero__content {
    position: relative;
    z-index: 2;
}

.nk-hero__heading {
    color: #fff;
    font-size: clamp(2rem, 5vw, 3.5rem);
    line-height: 1.2;
    margin-bottom: 1.5rem;
    text-shadow: 0 2px 8px rgba(0,0,0,.3);
}

.nk-hero__sub {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: rgba(255,255,255,.9);
    margin-bottom: 2.5rem;
    max-width: 600px;
}

.nk-hero__btns {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* ============================================================
   スタッフカード
   ============================================================ */
.nk-staff-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--nk-space-lg);
}
.nk-staff-card {
    background: #fff;
    border-radius: var(--nk-radius-md);
    overflow: hidden;
    box-shadow: var(--nk-shadow-sm);
    text-align: center;
    transition: var(--nk-transition-slow);
}
.nk-staff-card:hover { transform: translateY(-4px); box-shadow: var(--nk-shadow-md); }
.nk-staff-card__img { margin: 0; }
.nk-staff-card__img img { width: 100%; aspect-ratio: 1; object-fit: cover; }
.nk-staff-card__body { padding: 1.5rem; }
.nk-staff-card__role { font-size: 0.8rem; color: var(--nk-primary); font-weight: 600; margin-bottom: .25rem; }
.nk-staff-card__name { font-size: 1.1rem; font-weight: 700; margin-bottom: .75rem; }
.nk-staff-card__desc { font-size: 0.875rem; color: var(--nk-text-muted); }

@media (max-width: 768px) {
    .nk-staff-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
    .nk-staff-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   お客様の声カード
   ============================================================ */
.nk-voice-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--nk-space-lg);
}
.nk-voice-card {
    background: #fff;
    border-radius: var(--nk-radius-md);
    box-shadow: var(--nk-shadow-sm);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
}
.nk-voice-card__stars { margin-bottom: .75rem; color: var(--nk-accent); letter-spacing: 2px; }
.nk-star.is-filled  { color: var(--nk-accent); }
.nk-star:not(.is-filled) { color: var(--nk-border); }
.nk-voice-card__text {
    font-size: 0.9375rem;
    line-height: 1.8;
    border: none;
    padding: 0;
    margin: 0 0 1rem;
    flex: 1;
}
.nk-voice-card__footer {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--nk-border);
}
.nk-voice-card__avatar { width: 48px; height: 48px; border-radius: 50%; overflow: hidden; flex-shrink: 0; margin: 0; }
.nk-voice-card__avatar img { width: 100%; height: 100%; object-fit: cover; }
.nk-voice-card__name { font-weight: 700; font-size: 0.9rem; margin: 0 0 .1rem; }
.nk-voice-card__attr { font-size: 0.8rem; color: var(--nk-text-muted); margin: 0; }

@media (max-width: 768px) {
    .nk-voice-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
    .nk-voice-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   フロー（申込の流れ）
   ============================================================ */
.nk-flow {
    display: flex;
    align-items: stretch;
    gap: 0;
    counter-reset: flow-counter;
}

.nk-flow__step {
    flex: 1;
    padding: 2rem 1.5rem;
    background: var(--nk-bg-light);
    position: relative;
    text-align: center;
}
.nk-flow__step + .nk-flow__step { margin-left: 1px; }

.nk-flow__step::after {
    content: '';
    position: absolute;
    right: -1rem;
    top: 50%;
    transform: translateY(-50%);
    border: 1rem solid transparent;
    border-left-color: var(--nk-bg-light);
    z-index: 1;
}
.nk-flow__step:last-child::after { display: none; }

.nk-flow__num {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--nk-primary);
    font-family: var(--nk-font-en);
    line-height: 1;
    margin-bottom: 1rem;
}

/* ============================================================
   追従 CTA（画面下部）
   ============================================================ */
.nk-floating-cta {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: var(--nk-z-floating);
    background: var(--nk-bg-dark);
    padding: .75rem 1rem;
    box-shadow: 0 -2px 12px rgba(0,0,0,.15);
    transform: translateY(100%);
    transition: transform .3s ease;
}
.nk-floating-cta.is-visible {
    transform: translateY(0);
}
.nk-floating-cta__inner {
    display: flex;
    justify-content: center;
    gap: 1rem;
    max-width: 500px;
    margin-inline: auto;
}
.nk-floating-cta__btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: .25rem;
    padding: .5rem;
    border-radius: var(--nk-radius-sm);
    text-decoration: none;
    font-weight: 700;
    font-size: 0.8125rem;
    transition: var(--nk-transition);
}
.nk-floating-cta__btn--tel {
    background: var(--nk-accent);
    color: #fff;
}
.nk-floating-cta__btn--contact {
    background: var(--nk-primary);
    color: #fff;
}
.nk-floating-cta__icon { font-size: 1.25rem; line-height: 1; }

/* ============================================================
   カテゴリフィルター
   ============================================================ */
.nk-category-filter {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
    margin-bottom: 2rem;
}
.nk-filter-btn {
    display: inline-block;
    padding: .4rem 1.25rem;
    border-radius: var(--nk-radius-full);
    border: 1px solid var(--nk-border);
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    color: var(--nk-text);
    transition: var(--nk-transition);
}
.nk-filter-btn:hover,
.nk-filter-btn.is-active {
    background: var(--nk-primary);
    color: #fff;
    border-color: var(--nk-primary);
}

/* ============================================================
   ページネーション
   ============================================================ */
.nav-links {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: .5rem;
    margin-top: var(--nk-space-xl);
}

.nav-links a,
.nav-links span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2.5rem;
    height: 2.5rem;
    padding: 0 .75rem;
    border-radius: var(--nk-radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    border: 1px solid var(--nk-border);
    color: var(--nk-text);
    transition: var(--nk-transition);
}
.nav-links a:hover { background: var(--nk-primary); color: #fff; border-color: var(--nk-primary); }
.nav-links .current { background: var(--nk-primary); color: #fff; border-color: var(--nk-primary); }

/* ============================================================
   404ページ
   ============================================================ */
.nk-404 {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
    text-align: center;
    padding: var(--nk-space-3xl) 0;
}
.nk-404__code {
    font-size: clamp(6rem, 15vw, 12rem);
    font-weight: 700;
    color: var(--nk-border);
    line-height: 1;
    margin-bottom: 0;
    font-family: var(--nk-font-en);
}
.nk-404__heading { font-size: 1.5rem; margin-bottom: 1rem; }
.nk-404__text { color: var(--nk-text-muted); margin-bottom: 2rem; }
.nk-404__actions { margin-bottom: 2rem; }
.nk-404__search { max-width: 400px; margin-inline: auto; }

/* ============================================================
   シェアボタン
   ============================================================ */
.nk-share-buttons {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--nk-border);
}
.nk-share-buttons__label { font-size: 0.875rem; font-weight: 600; margin-bottom: .75rem; }
.nk-share-buttons__list { display: flex; gap: .5rem; list-style: none; padding: 0; }
.nk-share-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 80px;
    padding: .4rem 1rem;
    border-radius: var(--nk-radius-sm);
    font-size: 0.8125rem;
    font-weight: 700;
    text-decoration: none;
    transition: var(--nk-transition);
}
.nk-share-btn--x    { background: #000; color: #fff; }
.nk-share-btn--fb   { background: #1877f2; color: #fff; }
.nk-share-btn--line { background: #06c755; color: #fff; }
.nk-share-btn:hover { opacity: .85; transform: translateY(-1px); }

/* ============================================================
   関連投稿
   ============================================================ */
.nk-related-posts {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 2px solid var(--nk-border);
}
.nk-related-posts__heading { font-size: 1.25rem; margin-bottom: 1.5rem; }
.nk-related-posts__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}
.nk-related-posts__item { }
.nk-related-posts__link {
    display: block;
    text-decoration: none;
    color: var(--nk-text);
}
.nk-related-posts__thumb {
    aspect-ratio: 3/2;
    overflow: hidden;
    border-radius: var(--nk-radius-sm);
    margin-bottom: .5rem;
}
.nk-related-posts__thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s; }
.nk-related-posts__link:hover img { transform: scale(1.05); }
.nk-related-posts__title { font-size: 0.875rem; line-height: 1.4; font-weight: 600; }
.nk-related-posts__date { font-size: 0.75rem; color: var(--nk-text-muted); margin-top: .25rem; display: block; }

@media (max-width: 768px) {
    .nk-related-posts__grid { grid-template-columns: repeat(2, 1fr); }
}