/* =========================================================
   無料オンラインセミナー LP  ―  独自配色（Teal × Coral）
   KeySession の色味は踏襲しない、フレッシュで行動喚起型
   ========================================================= */
:root{
    --ink:#0f2b2e;
    --ink-2:#274a4d;
    --teal:#0d9488;      /* メイン */
    --teal-d:#0b7a70;
    --teal-l:#5eead4;
    --coral:#f9603a;     /* CTA/アクセント */
    --coral-d:#e34a24;
    --amber:#fbbf24;
    --paper:#f4faf9;
    --card:#ffffff;
    --line:#dcece9;
    --muted:#5b7273;
    --sans:"Hiragino Sans","Hiragino Kaku Gothic ProN","Noto Sans JP","Yu Gothic",-apple-system,sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{margin:0;font-family:var(--sans);color:var(--ink);background:var(--paper);line-height:1.8;-webkit-font-smoothing:antialiased;padding-bottom:0;}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;}
.ms-container{max-width:1080px;margin:0 auto;padding:0 20px;}
.ms-narrow{max-width:760px;}
.ms-center{text-align:center;margin-top:34px;}
.ms-pc{display:inline;}
@media(max-width:640px){ .ms-pc{display:none;} }

/* ===== Buttons ===== */
.ms-btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;font-weight:800;letter-spacing:.02em;border:0;border-radius:999px;padding:14px 28px;cursor:pointer;transition:transform .15s, box-shadow .15s, background .15s;white-space:nowrap;}
.ms-btn-lg{padding:18px 40px;font-size:1.05rem;}
.ms-btn-block{display:flex;width:100%;}
.ms-btn-primary{background:linear-gradient(180deg,var(--coral),var(--coral-d));color:#fff;box-shadow:0 10px 24px rgba(249,96,58,.35);}
.ms-btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(249,96,58,.45);color:#fff;}
.ms-btn-accent{background:#fff;color:var(--coral-d);box-shadow:0 10px 26px rgba(0,0,0,.18);}
.ms-btn-accent:hover{transform:translateY(-2px);}
.ms-btn-ghost{background:rgba(255,255,255,.14);color:#fff;border:1.5px solid rgba(255,255,255,.5);}
.ms-btn-ghost:hover{background:rgba(255,255,255,.24);color:#fff;}

/* ===== Header ===== */
.ms-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);transition:box-shadow .2s;}
.ms-header.is-scrolled{box-shadow:0 4px 18px rgba(13,148,136,.10);}
.ms-header-inner{display:flex;align-items:center;justify-content:space-between;height:62px;}
.ms-logo{font-weight:900;font-size:1.3rem;color:var(--teal-d);letter-spacing:.02em;display:flex;align-items:baseline;gap:2px;}
.ms-logo span{color:var(--coral);}
.ms-logo small{font-weight:700;font-size:.66rem;color:var(--muted);margin-left:8px;letter-spacing:.02em;}
.ms-header-cta{background:linear-gradient(180deg,var(--coral),var(--coral-d));color:#fff;font-weight:800;font-size:.9rem;padding:9px 20px;border-radius:999px;box-shadow:0 6px 16px rgba(249,96,58,.3);}
.ms-header-cta:hover{color:#fff;transform:translateY(-1px);}
@media(max-width:640px){ .ms-logo small{display:none;} .ms-header-cta{font-size:.82rem;padding:8px 15px;} }

/* ===== Hero ===== */
.ms-hero{position:relative;overflow:hidden;background:linear-gradient(150deg,#0b7a70 0%,#0d9488 45%,#0f766e 100%);color:#fff;padding:64px 0 72px;}
.ms-hero-glow{position:absolute;top:-120px;right:-120px;width:420px;height:420px;background:radial-gradient(circle,rgba(94,234,212,.45),transparent 65%);pointer-events:none;}
.ms-hero-inner{position:relative;}
.ms-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.35);color:#fff;font-weight:800;font-size:.82rem;letter-spacing:.04em;padding:7px 16px;border-radius:999px;margin-bottom:22px;}
.ms-badge i{color:var(--amber);}
.ms-hero-title{font-size:2.9rem;font-weight:900;line-height:1.4;letter-spacing:.01em;margin:0 0 18px;}
.ms-hero-title em{font-style:normal;color:#bff5ea;}
.ms-hero-title .ms-hl{position:relative;color:#fff;padding:0 6px;}
.ms-hero-title .ms-hl::after{content:"";position:absolute;left:0;right:0;bottom:6px;height:14px;background:var(--coral);opacity:.85;z-index:-1;border-radius:3px;}
.ms-hero-sub{font-size:1.08rem;color:#e6fffb;margin:0 0 30px;max-width:660px;}
.ms-hero-cta-row{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:26px;}
.ms-hero-points{list-style:none;display:flex;flex-wrap:wrap;gap:10px 22px;margin:0;padding:0;}
.ms-hero-points li{font-weight:800;font-size:.95rem;color:#eafffb;display:inline-flex;align-items:center;gap:8px;}
.ms-hero-points i{color:var(--amber);}
@media(max-width:820px){ .ms-hero-title{font-size:2.1rem;} }
@media(max-width:640px){ .ms-hero{padding:44px 0 52px;} .ms-hero-title{font-size:1.72rem;} .ms-hero-sub{font-size:1rem;} .ms-btn-lg{padding:15px 28px;font-size:1rem;} .ms-hero-cta-row .ms-btn{flex:1;} }

/* ===== Sections ===== */
.ms-section{padding:72px 0;}
.ms-section-alt{background:linear-gradient(180deg,#eef8f6,#f4faf9);}
.ms-eyebrow{text-align:center;color:var(--teal);font-weight:900;letter-spacing:.22em;font-size:.74rem;margin:0 0 10px;}
.ms-h2{text-align:center;font-size:1.85rem;font-weight:900;line-height:1.45;margin:0 0 14px;color:var(--ink);}
.ms-lead{text-align:center;color:var(--muted);margin:0 auto 40px;max-width:640px;}
@media(max-width:640px){ .ms-section{padding:52px 0;} .ms-h2{font-size:1.45rem;} }

/* ===== Benefits ===== */
.ms-benefits{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:36px;}
.ms-benefit{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:28px 22px;text-align:center;transition:transform .18s, box-shadow .18s;}
.ms-benefit:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(13,148,136,.12);}
.ms-benefit-icon{width:62px;height:62px;margin:0 auto 16px;border-radius:16px;background:linear-gradient(135deg,var(--teal),var(--teal-d));color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.5rem;}
.ms-benefit h3{font-size:1.06rem;font-weight:800;margin:0 0 8px;}
.ms-benefit p{font-size:.9rem;color:var(--muted);margin:0;line-height:1.75;}
@media(max-width:900px){ .ms-benefits{grid-template-columns:repeat(2,1fr);} }
@media(max-width:520px){ .ms-benefits{grid-template-columns:1fr;} }

/* ===== Seminar Layout (カテゴリナビ + カード一覧) ===== */
.ms-seminar-layout{display:grid;grid-template-columns:240px 1fr;gap:28px;align-items:start;margin-top:10px;}
.ms-seminar-main{min-width:0;}

/* カテゴリナビ (PC: 左サイドバー) */
.ms-cat-nav{position:sticky;top:78px;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:18px 16px;}
.ms-cat-nav-title{margin:0 0 12px;font-size:.82rem;font-weight:900;color:var(--teal-d);letter-spacing:.04em;display:flex;align-items:center;gap:7px;}
.ms-cat-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px;max-height:min(560px,calc(100vh - 180px));overflow-y:auto;}
.ms-cat-btn{display:flex;align-items:center;justify-content:space-between;gap:8px;width:100%;text-align:left;background:transparent;border:1px solid transparent;border-radius:10px;padding:8px 12px;font-family:inherit;font-size:.88rem;font-weight:700;color:var(--ink-2);cursor:pointer;transition:background .15s,color .15s,border-color .15s;}
.ms-cat-btn:hover{background:#e7f6f3;color:var(--teal-d);}
.ms-cat-btn.is-active{background:linear-gradient(135deg,var(--teal),var(--teal-d));color:#fff;box-shadow:0 6px 14px rgba(13,148,136,.28);}
.ms-cat-count{flex:none;font-size:.72rem;font-weight:800;background:var(--paper);color:var(--muted);border-radius:999px;padding:1px 8px;min-width:26px;text-align:center;}
.ms-cat-btn.is-active .ms-cat-count{background:rgba(255,255,255,.22);color:#fff;}

/* 絞り込み結果0件 */
.ms-filter-empty{text-align:center;background:var(--card);border:1px dashed var(--line);border-radius:18px;padding:44px 24px;}
.ms-filter-empty p{color:var(--muted);margin:0 0 20px;}

/* カード絞り込み時の非表示 */
.ms-card.is-hidden{display:none;}

/* スマホ・タブレット: ナビを上部の横スクロールチップに */
@media(max-width:900px){
    .ms-seminar-layout{display:block;}
    .ms-cat-nav{position:static;padding:14px 14px 12px;margin-bottom:22px;}
    .ms-cat-list{flex-direction:row;flex-wrap:nowrap;overflow-x:auto;overflow-y:visible;max-height:none;gap:8px;padding-bottom:4px;-webkit-overflow-scrolling:touch;}
    .ms-cat-list li{flex:none;}
    .ms-cat-btn{white-space:nowrap;border-color:var(--line);padding:7px 13px;font-size:.84rem;}
}

/* ===== Seminar Cards (バナーはスクエア: 640x640) ===== */
.ms-seminars{display:grid;grid-template-columns:1fr;gap:26px;margin-top:10px;}
.ms-card{background:var(--card);border:1px solid var(--line);border-radius:20px;overflow:hidden;display:flex;flex-direction:row;align-items:stretch;transition:transform .18s, box-shadow .18s;}
.ms-card:hover{transform:translateY(-5px);box-shadow:0 24px 50px rgba(13,148,136,.16);}
.ms-card-media{position:relative;flex:none;width:240px;background:linear-gradient(135deg,#0d9488,#0f766e);overflow:hidden;display:flex;align-items:center;justify-content:center;}
.ms-card-media img{width:100%;aspect-ratio:1/1;object-fit:cover;}
.ms-card-media-empty i{color:rgba(255,255,255,.6);font-size:3rem;}
.ms-card-free{position:absolute;top:12px;left:12px;background:var(--coral);color:#fff;font-weight:900;font-size:.78rem;padding:5px 13px;border-radius:999px;box-shadow:0 4px 12px rgba(249,96,58,.4);}
.ms-card-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1;}
.ms-card-meta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:10px;}
.ms-card-meta span{font-size:.78rem;font-weight:700;color:var(--teal-d);background:#e7f6f3;border-radius:6px;padding:3px 10px;}
.ms-card-title{font-size:1.18rem;font-weight:900;line-height:1.5;margin:0 0 14px;color:var(--ink);}
.ms-card-target{background:var(--paper);border-radius:12px;padding:13px 15px;margin-bottom:14px;}
.ms-card-target-label{font-size:.72rem;font-weight:800;color:var(--muted);letter-spacing:.06em;}
.ms-card-target ul{list-style:none;margin:6px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:4px 14px;}
.ms-card-target li{font-size:.85rem;font-weight:600;color:var(--ink-2);display:inline-flex;align-items:center;gap:6px;}
.ms-card-target li i{color:var(--teal);font-size:.75rem;}
.ms-card-company{font-size:.82rem;color:var(--muted);margin:0 0 16px;display:flex;align-items:center;gap:6px;}
.ms-card-company i{color:var(--teal);}
.ms-card .ms-btn{margin-top:auto;}
@media(max-width:640px){
    .ms-card{flex-direction:column;}
    .ms-card-media{width:100%;}
    .ms-card-media img{max-width:420px;margin:0 auto;}
    .ms-card-media-empty{aspect-ratio:16/8;}
}

/* ===== Empty ===== */
.ms-empty{text-align:center;background:var(--card);border:1px dashed var(--line);border-radius:18px;padding:44px 24px;}
.ms-empty p{color:var(--muted);margin:0 0 20px;}

/* ===== Flow ===== */
.ms-flow{display:flex;align-items:stretch;justify-content:center;gap:8px;flex-wrap:wrap;margin-top:36px;}
.ms-flow-step{flex:1;min-width:220px;max-width:300px;background:var(--card);border:1px solid var(--line);border-radius:18px;padding:30px 22px 26px;text-align:center;position:relative;}
.ms-flow-num{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,var(--coral),var(--coral-d));color:#fff;font-weight:900;font-size:1.2rem;display:flex;align-items:center;justify-content:center;margin:0 auto 14px;box-shadow:0 8px 18px rgba(249,96,58,.35);}
.ms-flow-step h3{font-size:1.05rem;font-weight:800;margin:0 0 8px;}
.ms-flow-step p{font-size:.88rem;color:var(--muted);margin:0;}
.ms-flow-arrow{display:flex;align-items:center;color:var(--teal-l);font-size:1.4rem;}
@media(max-width:760px){ .ms-flow-arrow{transform:rotate(90deg);} .ms-flow-step{max-width:none;width:100%;} }

/* ===== FAQ ===== */
.ms-faq{margin-top:30px;}
.ms-faq-item{background:var(--card);border:1px solid var(--line);border-radius:14px;margin-bottom:12px;overflow:hidden;}
.ms-faq-item summary{list-style:none;cursor:pointer;font-weight:800;font-size:1.02rem;padding:18px 52px 18px 20px;position:relative;color:var(--ink);}
.ms-faq-item summary::-webkit-details-marker{display:none;}
.ms-faq-item summary::after{content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;right:20px;top:50%;transform:translateY(-50%);color:var(--teal);transition:transform .2s;font-size:.9rem;}
.ms-faq-item[open] summary::after{content:"\f068";}
.ms-faq-item p{margin:0;padding:0 20px 20px;color:var(--muted);font-size:.94rem;}
.ms-faq-item p strong{color:var(--coral-d);}

/* ===== Final CTA ===== */
.ms-final{background:linear-gradient(150deg,#0f766e,#0d9488);color:#fff;padding:74px 0;text-align:center;position:relative;overflow:hidden;}
.ms-final-inner{position:relative;}
.ms-final h2{font-size:2rem;font-weight:900;margin:0 0 12px;}
.ms-final p{color:#e6fffb;margin:0 0 28px;}
.ms-final-points{display:flex;justify-content:center;flex-wrap:wrap;gap:12px 24px;margin-top:22px;}
.ms-final-points span{font-weight:800;font-size:.92rem;display:inline-flex;align-items:center;gap:7px;color:#eafffb;}
.ms-final-points i{color:var(--amber);}
@media(max-width:640px){ .ms-final h2{font-size:1.5rem;} }

/* ===== Footer ===== */
.ms-footer{background:var(--ink);color:#9fb8b6;text-align:center;padding:26px 0;font-size:.82rem;}

/* ===== Sticky Mobile CTA ===== */
.ms-sticky-cta{position:fixed;left:0;right:0;bottom:0;z-index:90;padding:10px 14px calc(10px + env(safe-area-inset-bottom));background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-top:1px solid var(--line);display:none;}
.ms-sticky-cta a{display:flex;align-items:center;justify-content:center;gap:9px;background:linear-gradient(180deg,var(--coral),var(--coral-d));color:#fff;font-weight:900;font-size:1.02rem;padding:15px;border-radius:12px;box-shadow:0 8px 20px rgba(249,96,58,.4);}
@media(max-width:900px){ .ms-sticky-cta{display:block;} body{padding-bottom:76px;} }

/* ===== 参加条件 ===== */
.ms-condition{margin-top:28px;background:var(--card);border:1px solid var(--line);border-left:5px solid var(--teal);border-radius:14px;padding:26px 28px;}
.ms-condition ul{list-style:none;margin:0;padding:0;}
.ms-condition li{position:relative;padding-left:30px;margin-bottom:16px;font-size:.95rem;line-height:1.85;color:var(--ink-2);}
.ms-condition li:last-child{margin-bottom:0;}
.ms-condition li i{position:absolute;left:0;top:.35em;color:var(--teal);font-size:.95rem;}
.ms-condition li i.fa-triangle-exclamation{color:var(--coral);}
.ms-condition li strong{color:var(--ink);}
@media(max-width:640px){ .ms-condition{padding:20px 18px;} .ms-condition li{font-size:.9rem;} }