/* AI省エネ診断ライト版 共通CSS（Freeasy風 グリーン×ティール） */
:root{
  --green:#18B58A; --green-d:#0E9C7E; --teal:#0EA5BE; --navy:#0E3A33; --ink:#1E293B;
  --gray:#64748B; --line:#E2E8F0; --bg:#F4FAF8; --cyan:#E9FAF4; --white:#fff;
  --accent:#FF8A3D; --radius:14px; --shadow:0 6px 20px rgba(14,156,126,.10);
}
*{box-sizing:border-box;margin:0;padding:0;}
body{font-family:'Hiragino Kaku Gothic ProN','Noto Sans JP','Meiryo',sans-serif;color:var(--ink);background:var(--bg);line-height:1.7;font-size:15px;}
a{color:var(--green-d);text-decoration:none;}
.container{max-width:1080px;margin:0 auto;padding:0 20px;}
.narrow{max-width:560px;}
/* header */
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:100;}
.header-inner{max-width:1080px;margin:0 auto;padding:0 20px;height:62px;display:flex;align-items:center;justify-content:space-between;}
.logo{font-size:1.15rem;font-weight:800;color:var(--navy);display:flex;align-items:center;gap:8px;}
.logo .mark{width:32px;height:32px;border-radius:9px;background:linear-gradient(135deg,var(--green),var(--teal));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:.85rem;}
.nav{display:flex;align-items:center;gap:14px;}
.nav a{color:var(--gray);font-size:.9rem;font-weight:600;}
/* buttons (pill) */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:none;border-radius:999px;padding:11px 24px;font-size:.95rem;font-weight:700;cursor:pointer;transition:.15s;font-family:inherit;}
.btn-primary{background:linear-gradient(135deg,var(--green),var(--teal));color:#fff;}
.btn-primary:hover{filter:brightness(1.05);}
.btn-outline{background:#fff;color:var(--green-d);border:2px solid var(--green);}
.btn-ghost{background:transparent;color:var(--gray);border:1px solid var(--line);}
.btn-danger{background:#fff;color:#dc2626;border:1px solid #fca5a5;}
.btn-sm{padding:7px 16px;font-size:.85rem;}
.btn-lg{padding:15px 36px;font-size:1.05rem;}
.btn:disabled{opacity:.5;cursor:not-allowed;}
.btn-block{width:100%;}
/* cards */
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);margin-bottom:18px;}
.card-title{font-size:1.15rem;font-weight:800;color:var(--navy);margin-bottom:6px;}
.card-desc{font-size:.88rem;color:var(--gray);margin-bottom:18px;}
/* hero */
.hero{background:linear-gradient(135deg,var(--navy) 0%,#15564A 55%,var(--teal) 100%);color:#fff;border-radius:22px;padding:48px 40px;position:relative;overflow:hidden;margin:24px 0;}
.hero h1{font-size:2rem;font-weight:900;line-height:1.4;margin-bottom:14px;}
.hero p{font-size:1rem;opacity:.92;line-height:1.9;margin-bottom:24px;max-width:560px;}
.hero .pill{display:inline-block;background:rgba(255,255,255,.18);color:#fff;border-radius:999px;padding:4px 16px;font-size:.8rem;font-weight:700;margin-bottom:16px;}
/* form */
.form-group{margin-bottom:16px;}
.form-label{display:block;font-size:.85rem;font-weight:700;color:var(--navy);margin-bottom:6px;}
.form-input,.form-select,textarea.form-input{width:100%;border:1.5px solid var(--line);border-radius:10px;padding:11px 14px;font-size:.95rem;font-family:inherit;color:var(--ink);background:#fff;}
.form-input:focus,.form-select:focus{outline:none;border-color:var(--green);}
.form-hint{font-size:.78rem;color:var(--gray);margin-top:4px;}
.req{color:#fff;background:var(--accent);font-size:.65rem;padding:1px 7px;border-radius:99px;vertical-align:middle;}
.opt{color:var(--gray);font-size:.7rem;}
/* table */
.tbl{width:100%;border-collapse:collapse;font-size:.85rem;background:#fff;border-radius:10px;overflow:hidden;}
.tbl th{background:var(--navy);color:#fff;padding:9px 10px;text-align:left;font-weight:700;white-space:nowrap;}
.tbl td{border-bottom:1px solid var(--line);padding:9px 10px;}
.tbl tr:nth-child(even) td{background:#f8fbfa;}
/* badges/stats */
.badge{display:inline-block;border-radius:999px;padding:2px 11px;font-size:.72rem;font-weight:700;}
.b-green{background:#dcfce7;color:#166534;} .b-gray{background:#f1f5f9;color:#475569;}
.b-amber{background:#fef3c7;color:#92400e;} .b-teal{background:var(--cyan);color:var(--green-d);}
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px;margin:16px 0;}
.stat{background:linear-gradient(135deg,var(--green),var(--teal));color:#fff;border-radius:14px;padding:20px;text-align:center;}
.stat .num{font-size:1.8rem;font-weight:900;line-height:1.1;}
.stat .lbl{font-size:.78rem;opacity:.95;margin-top:6px;}
.stat.alt{background:#fff;color:var(--navy);border:1px solid var(--line);}
.stat.alt .num{color:var(--green-d);}
/* notice */
.notice{border-radius:10px;padding:11px 15px;font-size:.85rem;margin-bottom:14px;}
.notice-info{background:var(--cyan);color:var(--green-d);border-left:4px solid var(--green);}
.notice-warn{background:#fef2f2;color:#b91c1c;border-left:4px solid #ef4444;}
.notice-ok{background:#dcfce7;color:#166534;border-left:4px solid #16a34a;}
.hidden{display:none!important;}
/* steps */
.steps{display:flex;gap:8px;margin:18px 0;flex-wrap:wrap;}
.step{flex:1;min-width:120px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px;text-align:center;}
.step .n{width:30px;height:30px;border-radius:50%;background:var(--green);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;margin:0 auto 8px;}
.step.done .n{background:var(--green-d);} .step.active{border-color:var(--green);box-shadow:var(--shadow);}
/* row card */
.row-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 18px;margin-bottom:12px;display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;}
.row-card .rname{font-weight:700;color:var(--navy);}
.row-card .rmeta{font-size:.8rem;color:var(--gray);margin-top:3px;}
/* chat widget */
#ais-chat-btn{position:fixed;right:20px;bottom:20px;width:58px;height:58px;border-radius:50%;background:linear-gradient(135deg,var(--green),var(--teal));color:#fff;border:none;cursor:pointer;box-shadow:0 8px 24px rgba(14,156,126,.4);font-size:1.5rem;z-index:300;}
#ais-chat-panel{position:fixed;right:20px;bottom:88px;width:340px;max-width:calc(100vw - 40px);height:460px;background:#fff;border-radius:16px;box-shadow:0 16px 48px rgba(0,0,0,.2);display:none;flex-direction:column;overflow:hidden;z-index:300;}
#ais-chat-panel.open{display:flex;}
.chat-head{background:linear-gradient(135deg,var(--green),var(--teal));color:#fff;padding:14px 16px;font-weight:700;display:flex;justify-content:space-between;align-items:center;}
.chat-body{flex:1;overflow-y:auto;padding:14px;background:var(--bg);}
.chat-msg{margin-bottom:10px;display:flex;}
.chat-msg.user{justify-content:flex-end;}
.chat-bubble{max-width:80%;padding:9px 13px;border-radius:14px;font-size:.85rem;line-height:1.6;white-space:pre-wrap;}
.chat-msg.bot .chat-bubble{background:#fff;border:1px solid var(--line);color:var(--ink);}
.chat-msg.user .chat-bubble{background:var(--green);color:#fff;}
.chat-input{display:flex;gap:8px;padding:10px;border-top:1px solid var(--line);background:#fff;}
.chat-input input{flex:1;border:1.5px solid var(--line);border-radius:999px;padding:9px 14px;font-size:.85rem;font-family:inherit;}
.text-c{text-align:center;} .text-muted{color:var(--gray);} .text-sm{font-size:.85rem;}
.mt8{margin-top:8px;} .mt16{margin-top:16px;} .mb8{margin-bottom:8px;}
.flex{display:flex;gap:10px;align-items:center;} .flex-between{justify-content:space-between;}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
@media(max-width:600px){.grid2{grid-template-columns:1fr;} .hero{padding:32px 22px;} .hero h1{font-size:1.5rem;}}
footer.site-footer{background:var(--navy);color:#cdeae0;text-align:center;padding:24px;font-size:.8rem;margin-top:40px;}