/* ============================================================
   まえだ会計 — コーポレートサイト 静的層スタイル
   トーン: クラシック美術館(深緑 × 金 × 生成り)
   ============================================================ */

:root {
    --green-deep: #142820;
    --green: #1d3a2c;
    --green-soft: #28503c;
    --gold: #b08d3f;
    --gold-text: #7d6228; /* 明色背景上の文字用(WCAG AA 4.5:1+) */
    --gold-bright: #cfa84e;
    --gold-pale: #e3cf9c;
    --wine: #5d2430;
    --paper: #f7f3ea;
    --paper-warm: #efe8d8;
    --ink: #29251c;
    --ink-muted: #6e6553;
    --ink-dim: #978d77;
    --line: #d9d0bc;
    --serif: "Hiragino Mincho ProN", "Yu Mincho", "YuMincho", "Noto Serif JP", serif;
    --sans: "Hiragino Kaku Gothic ProN", "Yu Gothic", "Noto Sans JP", "Meiryo", system-ui, -apple-system, sans-serif;
    --en-serif: Georgia, "Times New Roman", serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

/* スキップリンク(フォーカス時のみ表示) */
.skip-link {
    position: fixed;
    top: -48px;
    left: 12px;
    z-index: 300;
    padding: 10px 18px;
    background: var(--green-deep);
    color: var(--gold-pale);
    font-size: 13px;
    letter-spacing: 0.1em;
    text-decoration: none;
    border: 1px solid var(--gold);
    border-radius: 0 0 4px 4px;
    transition: top 0.2s;
}
.skip-link:focus { top: 0; }

html { scroll-behavior: smooth; }

body {
    font-family: var(--sans);
    color: var(--ink);
    background: var(--paper);
    line-height: 1.9;
    font-size: 15.5px;
    letter-spacing: 0.02em;
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--green); }

::selection { background: var(--gold-pale); }

/* ---------- ヘッダー ---------- */

.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 28px;
    background: rgba(247, 243, 234, 0.92);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s, box-shadow 0.3s;
}
.site-header.is-scrolled {
    border-bottom-color: var(--line);
    box-shadow: 0 2px 18px rgba(41, 37, 28, 0.07);
}

.brand {
    font-family: var(--serif);
    font-size: 21px;
    font-weight: 600;
    letter-spacing: 0.12em;
    color: var(--green-deep);
    text-decoration: none;
    display: flex;
    flex-direction: column;
    line-height: 1.3;
}
.brand-jp {
    font-family: var(--sans);
    font-size: 10.5px;
    font-weight: 400;
    letter-spacing: 0.18em;
    color: var(--ink-muted);
}

.nav-main {
    display: flex;
    gap: 26px;
}
.nav-main a {
    font-size: 13.5px;
    letter-spacing: 0.08em;
    color: var(--ink);
    text-decoration: none;
    padding: 4px 0;
    border-bottom: 1px solid transparent;
    transition: color 0.25s, border-color 0.25s;
}
.nav-main a:hover { color: var(--gold-text); }
.nav-main a.is-current {
    color: var(--green);
    border-bottom-color: var(--gold);
    font-weight: 600;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 42px; height: 42px;
    background: none;
    border: 1px solid var(--line);
    border-radius: 4px;
    cursor: pointer;
    padding: 10px;
}
.nav-toggle span {
    display: block;
    height: 1.5px;
    background: var(--green-deep);
    transition: transform 0.3s, opacity 0.3s;
}
.nav-toggle.is-open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ---------- ページヒーロー ---------- */

.page-hero {
    position: relative;
    padding: 150px 24px 72px;
    text-align: center;
    background: var(--green-deep);
    color: var(--paper);
    overflow: hidden;
}
.page-hero::after {
    /* 金の罫(額縁の下辺のイメージ) */
    content: "";
    position: absolute;
    left: 0; right: 0; bottom: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--gold) 18%, var(--gold-bright) 50%, var(--gold) 82%, transparent);
}
.hero-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0.22;
    filter: saturate(0.7);
}
.page-hero > * { position: relative; }

.hero-eyebrow {
    font-family: var(--en-serif);
    font-size: 12.5px;
    letter-spacing: 0.42em;
    text-transform: uppercase;
    color: var(--gold-bright);
    margin-bottom: 18px;
}
.page-hero h1 {
    font-family: var(--serif);
    font-size: clamp(30px, 5.5vw, 44px);
    font-weight: 600;
    letter-spacing: 0.14em;
    line-height: 1.5;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.page-hero h1 .jp {
    font-family: var(--en-serif);
    font-size: 13px;
    font-weight: 400;
    letter-spacing: 0.3em;
    color: var(--gold-pale);
}
.page-hero p {
    max-width: 640px;
    margin: 26px auto 0;
    font-size: 14.5px;
    color: rgba(247, 243, 234, 0.82);
}

/* ホーム用ヒーロー */
.page-hero--home { padding: 180px 24px 110px; }
.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-top: 34px;
    flex-wrap: wrap;
}
.btn.btn--ghost {
    color: var(--gold-pale);
    border-color: var(--gold);
    background: transparent;
}
.btn.btn--ghost:hover { background: rgba(176, 141, 63, 0.25); }

/* ---------- セクション共通 ---------- */

main { display: block; }

.content {
    max-width: 980px;
    margin: 0 auto;
    padding: 72px 24px;
}
.content--narrow { max-width: 760px; }

.content h2 {
    font-family: var(--serif);
    font-size: clamp(22px, 3.6vw, 30px);
    font-weight: 600;
    letter-spacing: 0.12em;
    color: var(--green-deep);
    margin: 56px 0 24px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.content h2:first-child { margin-top: 0; }
.content h2 .jp {
    font-family: var(--en-serif);
    font-size: 11.5px;
    font-weight: 400;
    letter-spacing: 0.34em;
    text-transform: uppercase;
    color: var(--gold-text);
}
.content h2::after {
    content: "";
    width: 54px;
    height: 2px;
    margin-top: 12px;
    background: linear-gradient(90deg, var(--gold), var(--gold-pale));
}

.content h3 {
    font-family: var(--serif);
    font-size: 19px;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--green);
    margin: 40px 0 14px;
}

.content p { margin: 0 0 18px; }
.content ul { margin: 0 0 18px 1.4em; }
.content li { margin-bottom: 6px; }

.eyebrow {
    font-family: var(--en-serif);
    font-size: 12px;
    letter-spacing: 0.38em;
    text-transform: uppercase;
    color: var(--gold-text);
    margin-bottom: 12px;
}

.section-title {
    font-family: var(--serif);
    letter-spacing: 0.12em;
}

/* 金の罫線(セクション区切り) */
.gilt-rule {
    width: 100%;
    max-width: 980px;
    margin: 0 auto;
    border: none;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--gold) 30%, var(--gold) 70%, transparent);
    opacity: 0.45;
}

/* ---------- カード ---------- */

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(252px, 1fr));
    gap: 22px;
}

.card {
    background: #fffdf8;
    border: 1px solid var(--line);
    border-top: 3px solid var(--gold);
    padding: 26px 24px 24px;
    box-shadow: 0 3px 16px rgba(41, 37, 28, 0.05);
    transition: transform 0.3s, box-shadow 0.3s;
}
.card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 28px rgba(41, 37, 28, 0.1);
}
.card .num {
    font-family: var(--en-serif);
    font-size: 11.5px;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--gold-text);
    margin-bottom: 10px;
}
.card h3 {
    font-family: var(--serif);
    font-size: 18px;
    margin: 0 0 12px;
    color: var(--green-deep);
    letter-spacing: 0.08em;
}
.card p { font-size: 14px; margin-bottom: 0; color: var(--ink-muted); }
.card ul { margin: 0; padding-left: 1.3em; font-size: 14px; color: var(--ink-muted); }
.card .more {
    display: inline-block;
    margin-top: 14px;
    font-size: 13px;
    letter-spacing: 0.08em;
    color: var(--green);
}

.card--media { padding: 0; overflow: hidden; }
.card--media .media { aspect-ratio: 16 / 10; overflow: hidden; }
.card--media .media-inner {
    width: 100%; height: 100%;
    background-size: cover;
    background-position: center;
    transition: transform 0.5s;
}
.card--media:hover .media-inner { transform: scale(1.04); }
.card--media .body { padding: 22px 24px 24px; }

/* ---------- 額装画像(静的ページの「絵画」) ---------- */

.frame-card {
    background: linear-gradient(135deg, #c9a44c, #a37c2e 45%, #dcc185 70%, #b08d3f);
    padding: 14px;
    box-shadow: 0 14px 40px rgba(20, 40, 32, 0.25);
    display: block;
}
.frame-card .mat {
    background: var(--paper);
    padding: 12px;
}
.frame-card img { width: 100%; }
.frame-plaque {
    width: max-content;
    margin: 18px auto 0;
    padding: 7px 22px;
    background: linear-gradient(180deg, #d9bc77, #b08d3f);
    color: #2c2410;
    font-family: var(--serif);
    font-size: 12.5px;
    letter-spacing: 0.22em;
    border-radius: 2px;
    box-shadow: 0 2px 6px rgba(41, 37, 28, 0.25);
}

/* ---------- バリュー/数値ブロック ---------- */

.values {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 16px;
}
.value {
    text-align: center;
    border: 1px solid var(--line);
    background: #fffdf8;
    padding: 26px 12px;
}
.value .label-en {
    font-family: var(--en-serif);
    font-size: 11px;
    letter-spacing: 0.28em;
    text-transform: uppercase;
    color: var(--gold-text);
    margin-bottom: 10px;
}
.value h4 {
    font-family: var(--serif);
    font-size: 16.5px;
    letter-spacing: 0.1em;
    color: var(--green-deep);
    line-height: 1.7;
}

/* ---------- ステップ(選考フロー等) ---------- */

.steps { counter-reset: step; margin: 0 0 18px; list-style: none; }
.steps li {
    counter-increment: step;
    position: relative;
    padding: 14px 18px 14px 64px;
    border: 1px solid var(--line);
    background: #fffdf8;
    margin-bottom: 10px;
}
.steps li::before {
    content: counter(step, decimal-leading-zero);
    position: absolute;
    left: 18px; top: 50%;
    transform: translateY(-50%);
    font-family: var(--en-serif);
    font-size: 17px;
    color: var(--gold-text);
}

/* ---------- タグ/バッジ ---------- */

.tags, .badges { display: flex; flex-wrap: wrap; gap: 10px; margin: 0 0 18px; }
.tag, .badges span {
    font-size: 12.5px;
    letter-spacing: 0.06em;
    padding: 5px 14px;
    border: 1px solid var(--gold);
    color: var(--green-deep);
    background: rgba(176, 141, 63, 0.07);
    border-radius: 999px;
}

/* ---------- 表 ---------- */

.info-table { border-top: 1px solid var(--line); }
.info-table .row {
    display: grid;
    grid-template-columns: 200px 1fr;
    border-bottom: 1px solid var(--line);
}
.info-table dt {
    padding: 18px 16px;
    background: var(--paper-warm);
    font-family: var(--serif);
    font-weight: 600;
    font-size: 14px;
    letter-spacing: 0.1em;
    color: var(--green-deep);
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.info-table dt .jp {
    font-family: var(--en-serif);
    font-size: 10px;
    font-weight: 400;
    letter-spacing: 0.24em;
    text-transform: uppercase;
    color: var(--gold-text);
}
.info-table dd { padding: 18px 20px; font-size: 14.5px; }

/* ---------- ボタン ---------- */

.btn {
    display: inline-block;
    padding: 13px 34px;
    font-size: 14px;
    letter-spacing: 0.14em;
    font-family: var(--serif);
    color: var(--green-deep);
    background: transparent;
    border: 1px solid var(--gold);
    text-decoration: none;
    cursor: pointer;
    transition: background 0.3s, color 0.3s, box-shadow 0.3s;
}
.btn:hover { background: rgba(176, 141, 63, 0.1); }
.btn--solid {
    background: linear-gradient(135deg, var(--green), var(--green-soft));
    color: var(--gold-pale);
    border-color: var(--green);
    box-shadow: 0 4px 16px rgba(29, 58, 44, 0.25);
}
.btn--solid:hover {
    background: linear-gradient(135deg, var(--green-soft), var(--green));
    box-shadow: 0 6px 22px rgba(29, 58, 44, 0.35);
}

/* ---------- お問い合わせ ---------- */

.contact-form .field { margin-bottom: 20px; }
.contact-form label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.08em;
    color: var(--green-deep);
    margin-bottom: 7px;
}
.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 12px 14px;
    font: inherit;
    font-size: 14.5px;
    color: var(--ink);
    background: #fffdf8;
    border: 1px solid var(--line);
    border-radius: 3px;
    transition: border-color 0.25s, box-shadow 0.25s;
}
.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--gold);
    box-shadow: 0 0 0 3px rgba(176, 141, 63, 0.15);
}
.contact-form textarea { min-height: 170px; resize: vertical; }
.form-actions { margin: 26px 0 14px; }

.contact-direct {
    margin: 42px 0;
    padding: 30px 28px;
    text-align: center;
    background: var(--green-deep);
    color: var(--paper);
    border: 1px solid var(--gold);
}
.contact-direct .label {
    font-size: 12px;
    letter-spacing: 0.3em;
    color: var(--gold-bright);
    margin-bottom: 12px;
}
.contact-direct .email,
.contact-direct .tel {
    font-family: var(--en-serif);
    font-size: clamp(17px, 3.4vw, 22px);
    letter-spacing: 0.06em;
    margin-bottom: 6px;
}
.contact-direct .tel a { color: var(--paper); text-decoration: none; }

/* ---------- フッター ---------- */

.site-footer {
    margin-top: 80px;
    background: var(--green-deep);
    color: rgba(247, 243, 234, 0.85);
    border-top: 3px solid var(--gold);
}
.footer-grid {
    max-width: 980px;
    margin: 0 auto;
    padding: 52px 24px 36px;
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 36px;
}
.footer-brand {
    font-family: var(--serif);
    font-size: 19px;
    letter-spacing: 0.14em;
    color: var(--paper);
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 14px;
}
.footer-brand .jp {
    font-family: var(--sans);
    font-size: 10.5px;
    letter-spacing: 0.18em;
    color: rgba(247, 243, 234, 0.6);
}
.footer-addr { font-size: 13px; line-height: 1.9; color: rgba(247, 243, 234, 0.7); }
.footer-col h5 {
    font-family: var(--en-serif);
    font-size: 11px;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--gold-bright);
    margin-bottom: 14px;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 8px; }
.footer-col a {
    font-size: 13px;
    color: rgba(247, 243, 234, 0.85);
    text-decoration: none;
}
.footer-col a:hover { color: var(--gold-bright); }
.footer-bottom {
    border-top: 1px solid rgba(176, 141, 63, 0.3);
    padding: 18px 24px;
    max-width: 980px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 11.5px;
    letter-spacing: 0.08em;
    color: rgba(247, 243, 234, 0.55);
}

/* ---------- Reveal ---------- */

.js .reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.7s ease, transform 0.7s ease; }
.js .reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
    .js .reveal { opacity: 1; transform: none; transition: none; }
    html { scroll-behavior: auto; }
}

/* ---------- レスポンシブ ---------- */

@media (max-width: 880px) {
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
}

@media (max-width: 820px) {
    .nav-toggle { display: flex; }
    .nav-main {
        position: fixed;
        top: 71px; left: 0; right: 0;
        flex-direction: column;
        gap: 0;
        background: var(--paper);
        border-bottom: 1px solid var(--line);
        box-shadow: 0 14px 28px rgba(41, 37, 28, 0.12);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.35s ease;
    }
    .nav-main.is-open { max-height: 480px; }
    .nav-main a {
        padding: 15px 28px;
        border-bottom: 1px solid var(--line);
        font-size: 14.5px;
    }
    .nav-main a.is-current { border-bottom-color: var(--line); background: var(--paper-warm); }
}

@media (max-width: 640px) {
    .info-table .row { grid-template-columns: 1fr; }
    .info-table dt { padding: 12px 16px 8px; }
    .info-table dd { padding: 10px 16px 16px; }
    .page-hero { padding: 130px 20px 56px; }
    .content { padding: 56px 20px; }
}