/* MATSUNAI WORKS — デザインシステム
   ハブ + 6デザイン系統(gentle/powerful/minimal/atmosphere/vivid/retro)の事例デモページ */
:root {
  --sans: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic", "Noto Sans JP", sans-serif;
  --serif: "Hiragino Mincho ProN", "Yu Mincho", "Noto Serif JP", serif;
  --mono: ui-monospace, "SF Mono", Menlo, monospace;
  --ink: #16181c;
  --paper: #fbfaf7;
  --brand: #16181c;
  --brand-accent: #2456e6;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--sans); color: var(--ink); background: var(--paper); line-height: 1.8; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; }

/* ============ ハブ ============ */
.hub-header { display: flex; justify-content: space-between; align-items: center; padding: 18px clamp(16px, 4vw, 48px); position: sticky; top: 0; background: rgba(251,250,247,.92); backdrop-filter: blur(8px); border-bottom: 1px solid #e5e2da; z-index: 50; }
.hub-brand { font-weight: 800; letter-spacing: .12em; font-size: 15px; }
.hub-header nav { display: flex; gap: clamp(10px, 2vw, 22px); align-items: center; font-size: 13px; }
.hub-header nav a { text-decoration: none; opacity: .75; }
.hub-header nav a:hover { opacity: 1; }
.hub-header .hub-cta { background: var(--brand); color: #fff; padding: 8px 18px; border-radius: 999px; opacity: 1; }
.hub-hero { padding: clamp(56px, 10vw, 120px) clamp(16px, 4vw, 48px) clamp(40px, 6vw, 72px); max-width: 1080px; margin: 0 auto; }
.hub-hero h1 { font-family: var(--serif); font-size: clamp(30px, 5.4vw, 58px); line-height: 1.35; letter-spacing: .02em; }
.hub-hero p { margin-top: 22px; font-size: clamp(14px, 1.6vw, 17px); opacity: .8; }
.hub-stats { display: flex; gap: clamp(20px, 4vw, 56px); margin-top: 44px; flex-wrap: wrap; }
.hub-stats div { display: flex; flex-direction: column; }
.hub-stats strong { font-size: clamp(34px, 4.6vw, 52px); font-family: var(--serif); line-height: 1.1; }
.hub-stats span { font-size: 12px; opacity: .65; margin-top: 4px; }
.hub-section { max-width: 1080px; margin: 0 auto; padding: clamp(40px, 6vw, 72px) clamp(16px, 4vw, 48px); }
.hub-section h2 { font-family: var(--serif); font-size: clamp(22px, 3vw, 32px); margin-bottom: 20px; }
.hub-section > p { max-width: 46em; opacity: .85; font-size: 15px; }
.family-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.family-chip { display: inline-flex; flex-direction: column; padding: 12px 18px; border: 1px solid #ddd8cd; border-radius: 12px; font-size: 12px; background: #fff; min-width: 130px; }
.family-chip strong { letter-spacing: .1em; font-size: 13px; }
.family-chip[data-family="gentle"] strong { color: #8a6d3b; }
.family-chip[data-family="powerful"] strong { color: #ff5a1f; }
.family-chip[data-family="minimal"] strong { color: #2456e6; }
.family-chip[data-family="atmosphere"] strong { color: #6b7f5c; }
.family-chip[data-family="vivid"] strong { color: #e5399b; }
.family-chip[data-family="retro"] strong { color: #c0392b; }

/* フィルタ */
.filters { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-bottom: 26px; }
.filters select { font: inherit; font-size: 13px; padding: 9px 12px; border: 1px solid #d5d0c4; border-radius: 8px; background: #fff; max-width: 100%; }
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { font: inherit; font-size: 12px; padding: 7px 14px; border: 1px solid #d5d0c4; background: #fff; border-radius: 999px; cursor: pointer; transition: all .15s; }
.chip:hover { border-color: var(--ink); }
.chip.active { background: var(--ink); color: #fff; border-color: var(--ink); }
.filter-count { font-size: 12px; opacity: .6; margin-left: auto; }

/* 事例グリッド */
.works-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 22px; }
.work-card { text-decoration: none; background: #fff; border: 1px solid #e5e2da; border-radius: 14px; overflow: hidden; transition: transform .18s, box-shadow .18s; display: flex; flex-direction: column; }
.work-card:hover { transform: translateY(-4px); box-shadow: 0 14px 34px rgba(20, 20, 24, .12); }
.work-media { position: relative; aspect-ratio: 16 / 9; overflow: hidden; background: #eee; }
.work-media img { width: 100%; height: 100%; object-fit: cover; }
.card-fallback { width: 100%; height: 100%; background: linear-gradient(125deg, var(--accent) 0%, color-mix(in srgb, var(--accent) 35%, #ffffff) 100%); }
.work-family { position: absolute; left: 10px; bottom: 10px; font-size: 10px; letter-spacing: .12em; background: rgba(12,12,16,.72); color: #fff; padding: 4px 10px; border-radius: 999px; }
.work-body { padding: 16px 18px 18px; display: flex; flex-direction: column; gap: 6px; border-top: 3px solid var(--accent); }
.work-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.work-tags span { font-size: 10.5px; border: 1px solid #ddd8cd; border-radius: 999px; padding: 2px 9px; opacity: .8; }
.work-body strong { font-size: 15px; line-height: 1.45; }
.work-body p { font-size: 12.5px; opacity: .7; line-height: 1.6; }

/* 制作の流れ */
.flow { list-style: none; display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 18px; counter-reset: step; }
.flow li { background: #fff; border: 1px solid #e5e2da; border-radius: 14px; padding: 22px 20px; font-size: 13px; line-height: 1.7; counter-increment: step; }
.flow li::before { content: "0" counter(step); display: block; font-family: var(--serif); font-size: 26px; opacity: .3; }
.flow li strong { display: block; font-size: 15px; margin: 6px 0 8px; }

.hub-footer { border-top: 1px solid #e5e2da; margin-top: 40px; padding: 40px clamp(16px, 4vw, 48px) 60px; text-align: center; font-size: 13px; }
.hub-footer a { color: var(--brand-accent); }
.disclaimer { margin-top: 12px; font-size: 11.5px; opacity: .6; max-width: 40em; margin-left: auto; margin-right: auto; }

/* ============ 事例ページ共通 ============ */
.harness-bar { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 10px clamp(14px, 3vw, 32px); background: #101216; color: #f4f4f6; font-size: 12px; flex-wrap: wrap; }
.harness-back { color: #f4f4f6; text-decoration: none; opacity: .85; white-space: nowrap; }
.harness-back:hover { opacity: 1; }
.harness-badges { display: flex; gap: 6px; flex-wrap: wrap; }
.badge { border: 1px solid rgba(255,255,255,.28); border-radius: 999px; padding: 3px 11px; font-size: 10.5px; letter-spacing: .04em; }
.badge-family { background: var(--accent); border-color: transparent; color: #fff; }
.badge-demo { background: #f4d35e; color: #101216; border-color: transparent; font-weight: 700; }

.prod-note { max-width: 880px; margin: clamp(36px, 6vw, 64px) auto; padding: 30px clamp(20px, 4vw, 40px); background: #fff; border: 1px solid #e5e2da; border-radius: 16px; font-family: var(--sans); color: #16181c; }
.prod-note h2 { font-size: 17px; letter-spacing: .06em; margin-bottom: 16px; padding-bottom: 12px; border-bottom: 2px solid var(--accent); display: inline-block; }
.prod-note dl { display: grid; grid-template-columns: max-content 1fr; gap: 10px 22px; font-size: 13.5px; }
.prod-note dt { font-weight: 700; opacity: .65; white-space: nowrap; }
.prod-note ul { padding-left: 1.2em; }
.prod-note-links { margin-top: 20px; font-size: 13px; }
.prod-note-links a { color: var(--brand-accent); }
@media (max-width: 560px) { .prod-note dl { grid-template-columns: 1fr; gap: 2px; } .prod-note dt { margin-top: 10px; } }

/* デモ共通骨格 */
.case-body { background: #ecebe6; }
.demo { --demo-bg: #ffffff; --demo-ink: #16181c; background: var(--demo-bg); color: var(--demo-ink); }
.demo-nav { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 16px clamp(16px, 4vw, 44px); flex-wrap: wrap; }
.demo-brand { font-weight: 800; font-size: 15px; letter-spacing: .04em; }
.demo-links { display: flex; gap: clamp(10px, 2vw, 20px); font-size: 12.5px; flex-wrap: wrap; align-items: center; }
.demo-links a { text-decoration: none; opacity: .78; }
.demo-links a:hover { opacity: 1; }
.demo-nav-cta { border: 1.5px solid var(--accent); color: var(--accent); border-radius: 999px; padding: 6px 16px; opacity: 1 !important; }
.demo-hero { position: relative; min-height: clamp(340px, 55vh, 560px); display: flex; align-items: flex-end; overflow: hidden; }
.demo-hero-media { position: absolute; inset: 0; }
.demo-hero-media img { width: 100%; height: 100%; object-fit: cover; }
.demo-hero-scrim { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(8,8,12,.05) 30%, rgba(8,8,12,.66) 100%); }
.demo-hero-fallback { background: linear-gradient(130deg, var(--accent), color-mix(in srgb, var(--accent) 30%, #202028)); }
.demo-hero-inner { position: relative; padding: clamp(28px, 5vw, 64px) clamp(16px, 4vw, 44px); color: #fff; max-width: 900px; }
.demo-hero-inner h1 { font-size: clamp(26px, 4.6vw, 48px); line-height: 1.4; letter-spacing: .03em; text-shadow: 0 2px 18px rgba(0,0,0,.35); }
.demo-lead { margin-top: 14px; font-size: clamp(13px, 1.6vw, 16px); opacity: .92; text-shadow: 0 1px 10px rgba(0,0,0,.4); }
.demo-section { max-width: 980px; margin: 0 auto; padding: clamp(40px, 7vw, 84px) clamp(16px, 4vw, 44px); }
.demo-section h2 { font-size: clamp(20px, 2.6vw, 28px); margin-bottom: 24px; display: flex; flex-direction: column; gap: 6px; }
.demo-eyebrow { font-size: 11px; letter-spacing: .22em; text-transform: uppercase; color: var(--accent); font-family: var(--sans); }
.demo-about { max-width: 44em; font-size: 15px; }
.demo-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 18px; }
.demo-card { border: 1px solid color-mix(in srgb, var(--demo-ink) 14%, transparent); border-radius: 12px; padding: 24px 22px; background: color-mix(in srgb, var(--demo-bg) 92%, var(--demo-ink) 2%); }
.demo-card-num { font-family: var(--serif); font-size: 22px; color: var(--accent); }
.demo-card h3 { font-size: 15.5px; margin: 10px 0 8px; line-height: 1.5; }
.demo-card p { font-size: 13px; opacity: .8; }
.demo-message blockquote { font-family: var(--serif); font-size: clamp(16px, 2.2vw, 21px); line-height: 2; max-width: 38em; border-left: 3px solid var(--accent); padding-left: clamp(16px, 3vw, 30px); }
.demo-table { border-collapse: collapse; width: 100%; max-width: 620px; font-size: 14px; }
.demo-table th, .demo-table td { text-align: left; padding: 13px 10px; border-bottom: 1px solid color-mix(in srgb, var(--demo-ink) 14%, transparent); }
.demo-table th { width: 7em; opacity: .6; font-weight: 600; }
.demo-contact { text-align: center; }
.demo-contact h2 { align-items: center; }
.demo-cta { font: inherit; font-size: 14px; margin-top: 18px; background: var(--accent); color: #fff; border: none; padding: 15px 44px; border-radius: 999px; cursor: pointer; letter-spacing: .06em; }
.demo-cta:hover { filter: brightness(1.08); }
.demo-footer { text-align: center; font-size: 11.5px; opacity: .55; padding: 30px 16px 40px; }

/* ---- 系統: GENTLE(上質・信頼 / セリフ・生成り・センター寄せヒーロー) ---- */
[data-family="gentle"] .demo { --demo-bg: #faf7f0; --demo-ink: #1e2a38; font-family: var(--sans); }
[data-family="gentle"] .demo-brand, [data-family="gentle"] .demo-hero-inner h1, [data-family="gentle"] .demo-section h2 { font-family: var(--serif); }
[data-family="gentle"] .demo-hero { align-items: center; text-align: center; }
[data-family="gentle"] .demo-hero-inner { margin: 0 auto; padding-bottom: clamp(48px, 8vw, 96px); }
[data-family="gentle"] .demo-hero-scrim { background: rgba(16, 20, 30, .42); }
[data-family="gentle"] .demo-section h2 { align-items: center; text-align: center; }
[data-family="gentle"] .demo-about { margin: 0 auto; text-align: center; }
[data-family="gentle"] .demo-message blockquote { margin: 0 auto; border-left: none; border-top: 1px solid var(--accent); padding: 26px 0 0; text-align: center; }
[data-family="gentle"] .demo-table { margin: 0 auto; }
[data-family="gentle"] .demo-card { border-radius: 2px; background: #fff; }

/* ---- 系統: POWERFUL(先進・迫力 / ダーク・極太・左寄せ大型ヒーロー) ---- */
[data-family="powerful"] .demo { --demo-bg: #0e1116; --demo-ink: #f2f4f8; }
[data-family="powerful"] .demo-hero { min-height: clamp(420px, 68vh, 640px); }
[data-family="powerful"] .demo-hero-inner h1 { font-weight: 900; font-size: clamp(30px, 5.6vw, 60px); letter-spacing: .01em; }
[data-family="powerful"] .demo-hero-scrim { background: linear-gradient(90deg, rgba(8,10,14,.82) 0%, rgba(8,10,14,.18) 70%); }
[data-family="powerful"] .demo-nav { border-bottom: 1px solid rgba(255,255,255,.12); }
[data-family="powerful"] .demo-section h2 { font-weight: 900; }
[data-family="powerful"] .demo-card { background: #161b23; border-color: rgba(255,255,255,.1); }
[data-family="powerful"] .demo-eyebrow { letter-spacing: .3em; }
[data-family="powerful"] .demo-footer { opacity: .4; }

/* ---- 系統: MINIMAL(端正 / 白・細罫・小さめタイポ・余白広め) ---- */
[data-family="minimal"] .demo { --demo-bg: #ffffff; --demo-ink: #16181c; }
[data-family="minimal"] .demo-nav { border-bottom: 1px solid #ececec; }
[data-family="minimal"] .demo-hero { min-height: clamp(300px, 46vh, 460px); }
[data-family="minimal"] .demo-hero-inner h1 { font-size: clamp(22px, 3.4vw, 38px); font-weight: 600; letter-spacing: .05em; }
[data-family="minimal"] .demo-hero-scrim { background: rgba(14,14,18,.38); }
[data-family="minimal"] .demo-section { padding-top: clamp(48px, 8vw, 96px); padding-bottom: clamp(48px, 8vw, 96px); }
[data-family="minimal"] .demo-section h2 { font-weight: 600; font-size: clamp(17px, 2vw, 22px); letter-spacing: .08em; }
[data-family="minimal"] .demo-card { border: none; border-top: 1px solid #e3e3e3; border-radius: 0; padding-left: 0; background: transparent; }
[data-family="minimal"] .demo-message blockquote { font-family: var(--sans); font-size: clamp(15px, 1.8vw, 18px); }

/* ---- 系統: ATMOSPHERE(情緒 / セリフ・低コントラスト・フルブリード写真) ---- */
[data-family="atmosphere"] .demo { --demo-bg: #f3efe8; --demo-ink: #3a3226; font-family: var(--serif); }
[data-family="atmosphere"] .demo-links, [data-family="atmosphere"] .demo-card p, [data-family="atmosphere"] .demo-table, [data-family="atmosphere"] .demo-footer { font-family: var(--sans); }
[data-family="atmosphere"] .demo-hero { min-height: clamp(420px, 72vh, 680px); }
[data-family="atmosphere"] .demo-hero-scrim { background: linear-gradient(180deg, rgba(20,16,10,0) 40%, rgba(20,16,10,.58) 100%); }
[data-family="atmosphere"] .demo-hero-inner h1 { font-weight: 500; letter-spacing: .12em; line-height: 1.7; }
[data-family="atmosphere"] .demo-section h2 { font-weight: 500; letter-spacing: .14em; }
[data-family="atmosphere"] .demo-card { background: rgba(255,255,255,.55); border-color: rgba(58,50,38,.14); }
[data-family="atmosphere"] .demo-message blockquote { line-height: 2.4; }

/* ---- 系統: VIVID(個性 / 高彩度・角丸大・遊び) ---- */
[data-family="vivid"] .demo { --demo-bg: #fffdf5; --demo-ink: #20242c; }
[data-family="vivid"] .demo-nav-cta { background: var(--accent); color: #fff; }
[data-family="vivid"] .demo-hero-inner h1 { font-weight: 900; }
[data-family="vivid"] .demo-hero-media::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 34px; background: var(--demo-bg); clip-path: ellipse(58% 100% at 50% 100%); }
[data-family="vivid"] .demo-hero-scrim { background: linear-gradient(160deg, color-mix(in srgb, var(--accent) 46%, transparent) 0%, rgba(16,16,22,.55) 100%); }
[data-family="vivid"] .demo-card { border-radius: 22px; border-width: 2px; border-color: color-mix(in srgb, var(--accent) 36%, transparent); }
[data-family="vivid"] .demo-card-num { background: var(--accent); color: #fff; font-family: var(--sans); font-size: 13px; font-weight: 800; border-radius: 999px; padding: 4px 12px; display: inline-block; }
[data-family="vivid"] .demo-eyebrow { font-weight: 800; }
[data-family="vivid"] .demo-cta { box-shadow: 0 8px 24px color-mix(in srgb, var(--accent) 42%, transparent); }

/* ---- 系統: RETRO(懐古・技術文化 / モノスペース・紙色・実線ボーダー) ---- */
[data-family="retro"] .demo { --demo-bg: #f5f1e3; --demo-ink: #2b2b26; font-family: var(--mono); }
[data-family="retro"] .demo-nav { border-bottom: 2px solid var(--demo-ink); }
[data-family="retro"] .demo-brand::before { content: "■ "; color: var(--accent); }
[data-family="retro"] .demo-hero { min-height: clamp(300px, 46vh, 440px); }
[data-family="retro"] .demo-hero-inner h1 { font-size: clamp(22px, 3.6vw, 40px); font-weight: 700; letter-spacing: 0; }
[data-family="retro"] .demo-hero-scrim { background: rgba(30,26,16,.5); }
[data-family="retro"] .demo-section h2 { font-size: clamp(17px, 2.2vw, 24px); }
[data-family="retro"] .demo-eyebrow::before { content: ">> "; }
[data-family="retro"] .demo-card { border: 2px solid var(--demo-ink); border-radius: 0; box-shadow: 5px 5px 0 color-mix(in srgb, var(--accent) 70%, transparent); background: #fbf8ee; }
[data-family="retro"] .demo-table th, [data-family="retro"] .demo-table td { border-bottom: 1.5px solid var(--demo-ink); }
[data-family="retro"] .demo-cta { border-radius: 0; border: 2px solid var(--demo-ink); box-shadow: 4px 4px 0 var(--demo-ink); }
[data-family="retro"] .demo-message blockquote { border-left: 4px double var(--accent); }