/* =====================================================================
   sivva — app.css   （クリーン・コーポレートブルー / 参考: rakubaco.biz）
   ===================================================================== */
:root{
  --brand:#0a6ec2; --brand-d:#085a9f; --brand-l:#e9f3fb; --brand-ll:#f3f8fd;
  --ink:#1d2733; --ink-2:#33414f; --muted:#647082; --line:#e2e8f0; --line-2:#eef2f7;
  --bg:#f4f7fb; --surface:#ffffff; --accent:#f5a524;
  --ok:#15803d; --ok-bg:#e7f6ec; --warn:#b45309; --warn-bg:#fdf3e7; --err:#dc2626; --err-bg:#fdeaea;
  --radius:14px; --radius-sm:10px; --radius-pill:999px;
  --sh-sm:0 1px 2px rgba(16,24,40,.06); --sh:0 4px 16px rgba(16,24,40,.08); --sh-lg:0 18px 44px rgba(16,24,40,.12);
  --maxw:1120px;
  --font:"Hiragino Kaku Gothic ProN","Noto Sans JP",system-ui,-apple-system,"Segoe UI",Roboto,"Yu Gothic",Meiryo,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.75;font-size:15px;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
a{color:var(--brand);text-decoration:none}
a:hover{color:var(--brand-d);text-decoration:underline}
img{max-width:100%;display:block}
h1,h2,h3,h4{line-height:1.35;margin:0 0 .6em;color:var(--ink);font-weight:800;letter-spacing:.01em}
h1{font-size:30px}h2{font-size:24px}h3{font-size:18px}
p{margin:0 0 1em}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.muted{color:var(--muted)}
.hidden{display:none!important}
.center{text-align:center}
.eyebrow{display:inline-block;color:var(--brand);font-weight:800;font-size:12px;letter-spacing:.14em;text-transform:uppercase;margin:0 0 10px}
.sub{color:var(--muted);margin-top:-4px}
.lead{font-size:17px;color:var(--ink-2)}
.hint{font-size:12.5px;color:var(--muted);margin:10px 0 0}
.tag{display:inline-block;font-size:11px;font-weight:800;color:var(--brand);background:var(--brand-l);padding:3px 10px;border-radius:var(--radius-pill);letter-spacing:.02em}
.ok{color:var(--ok);font-weight:700;font-size:12px}
.warn{color:var(--warn);font-weight:700;font-size:12px}

/* ---------- Buttons ---------- */
.btn-primary,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:.5em;
  font-weight:700;font-size:15px;line-height:1;padding:13px 24px;border-radius:var(--radius-pill);
  border:1.5px solid transparent;cursor:pointer;transition:.16s ease;font-family:inherit;white-space:nowrap;text-decoration:none}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(10,110,194,.26)}
.btn-primary:hover{background:var(--brand-d);color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:0 10px 22px rgba(10,110,194,.3)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{background:var(--brand-ll);border-color:var(--brand);color:var(--brand-d);text-decoration:none}
.btn-primary.sm,.btn-ghost.sm{padding:8px 16px;font-size:13px}
.btn-primary.block,.btn-ghost.block{display:flex;width:100%;margin-top:12px}
.btn-ghost.danger{color:var(--err);border-color:#f3c2c2}
.btn-ghost.danger:hover{background:var(--err-bg);border-color:var(--err)}
.danger-btn{background:var(--err);box-shadow:0 6px 16px rgba(220,38,38,.26)}
.danger-btn:hover{background:#b91c1c}

/* ---------- Form controls ---------- */
label{display:block;font-weight:700;font-size:13.5px;color:var(--ink-2);margin:14px 0 6px}
input[type=text],input[type=url],input[type=email],input[type=password],input[type=number],input[type=search],input:not([type]),textarea,select{
  -webkit-appearance:none;appearance:none;width:100%;padding:12px 14px;
  border:1.5px solid var(--line);border-radius:var(--radius-sm);
  font-size:15px;font-family:inherit;line-height:1.5;color:var(--ink);background:#fff;transition:border-color .15s,box-shadow .15s}
input::placeholder,textarea::placeholder{color:#9aa6b4}
input:hover,textarea:hover,select:hover{border-color:#c9d3df}
input:focus,textarea:focus,select:focus{outline:0;border-color:var(--brand);box-shadow:0 0 0 3.5px rgba(10,110,194,.16)}
textarea{resize:vertical;min-height:72px}
select{
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23647082' stroke-width='3' stroke-linecap='round'><path d='M6 9l6 6 6-6'/></svg>");
  background-repeat:no-repeat;background-position:right 14px center;padding-right:40px;cursor:pointer}
input[type=file]{width:100%;font-size:13px;padding:10px 12px;border:1.5px dashed var(--line);border-radius:var(--radius-sm);background:var(--brand-ll);cursor:pointer}
input[type=color]{-webkit-appearance:none;appearance:none;padding:3px;height:42px;width:52px;border-radius:8px;cursor:pointer}
input[type=number]{appearance:auto;-webkit-appearance:auto}
.row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
fieldset{border:1.5px solid var(--line);border-radius:var(--radius);padding:8px 18px 18px;margin:0 0 18px;background:#fff}
legend{font-weight:800;font-size:14px;color:var(--brand-d);padding:0 8px}

/* ---------- Card ---------- */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--sh);padding:24px}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{font-weight:900;font-size:20px;color:var(--ink);display:flex;align-items:center;gap:.45em;letter-spacing:.02em}
.brand:hover{text-decoration:none;color:var(--ink)}
.brand-mark{color:var(--brand)}
.nav-links{display:flex;align-items:center;gap:20px}
.nav-links a{color:var(--ink-2);font-weight:600;font-size:14px}
.nav-links a:hover{color:var(--brand)}
.nav-links a.btn-primary{color:#fff}
.credits-badge{background:var(--brand-l);color:var(--brand-d);border:1px solid #cfe5f7;border-radius:var(--radius-pill);padding:5px 13px;font-weight:800;font-size:13px}
.inline{display:inline}form.inline{margin:0;display:inline}

/* ---------- Hero ---------- */
.hero{background:
  radial-gradient(900px 380px at 88% -8%,rgba(10,110,194,.12),transparent 70%),
  linear-gradient(180deg,#fbfdff 0%,#eef4fb 100%);
  border-bottom:1px solid var(--line);padding:60px 0 64px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero-copy .eyebrow{margin-bottom:14px}
.hero-copy h1{font-size:42px;font-weight:900;letter-spacing:.01em;color:var(--ink)}
.hero-copy .lead{color:var(--ink-2);max-width:40ch}
.hero-points{list-style:none;padding:0;margin:24px 0 0;display:grid;gap:10px}
.hero-points li{padding:12px 16px 12px 44px;position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);box-shadow:var(--sh-sm);font-size:14px;color:var(--ink-2);font-weight:600}
.hero-points li::before{content:"✓";position:absolute;left:16px;top:50%;transform:translateY(-50%);width:18px;height:18px;line-height:18px;text-align:center;background:var(--brand);color:#fff;border-radius:50%;font-size:11px;font-weight:900}
.hero-form{box-shadow:var(--sh-lg)}

/* ---------- Tabs ---------- */
.tabs{display:flex;gap:6px;background:var(--bg);padding:5px;border-radius:12px;margin-bottom:18px;border:1px solid var(--line)}
.tab{flex:1;border:0;background:transparent;padding:11px;border-radius:8px;font-weight:700;cursor:pointer;color:var(--muted);font-family:inherit;font-size:14px;transition:.15s}
.tab:hover{color:var(--ink)}
.tab.active{background:#fff;color:var(--brand-d);box-shadow:var(--sh-sm)}

/* ---------- Result area / confirm (JS) ---------- */
#result-area{margin-top:18px}
.confirm-box{border:1px solid var(--line);border-radius:var(--radius);padding:20px;background:var(--brand-ll);margin-top:8px}
.confirm-box h3{font-size:16px;margin-bottom:14px}
.confirm-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px 14px}
.confirm-grid .full{grid-column:1/-1}
.confirm-grid label{margin-top:6px}
.swatch-row{display:flex;align-items:center;gap:10px}
.swatch-row input[type=text]{flex:1}
.logo-prev{display:flex;align-items:center;gap:12px;margin-top:12px}
.logo-prev img{width:56px;height:56px;object-fit:contain;border:1px solid var(--line);border-radius:10px;background:#fff;padding:4px}
.confirm-actions{display:flex;gap:12px;margin-top:18px}
.confirm-actions .btn-primary,.confirm-actions .btn-ghost{flex:1}
.gen-progress{margin-top:18px;display:grid;gap:10px}
.gen-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:2px}
.gen-item{display:flex;gap:14px;align-items:center;border:1px solid var(--line);border-radius:12px;padding:12px;background:#fff;box-shadow:var(--sh-sm)}
.gen-item .thumb{width:64px;height:64px;border-radius:10px;background:var(--bg);overflow:hidden;display:flex;align-items:center;justify-content:center;flex:0 0 auto;color:var(--muted);font-weight:800}
.gen-item .thumb img{width:100%;height:100%;object-fit:cover}
.gen-item .meta{flex:1;min-width:0}
.gen-item .meta strong{display:block;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--ink)}
.gen-item .meta small{color:var(--muted)}
.badge{font-size:11px;font-weight:800;padding:4px 11px;border-radius:var(--radius-pill);white-space:nowrap}
.badge.pending{background:var(--warn-bg);color:var(--warn)}
.badge.run{background:var(--brand-l);color:var(--brand-d)}
.badge.done{background:var(--ok-bg);color:var(--ok)}
.badge.failed{background:var(--err-bg);color:var(--err)}
.spinner{width:16px;height:16px;border:2.5px solid #cfd9e4;border-top-color:var(--brand);border-radius:50%;animation:spin .7s linear infinite;display:inline-block}
@keyframes spin{to{transform:rotate(360deg)}}
.notice{padding:12px 14px;border-radius:10px;font-size:13.5px;margin-top:12px;line-height:1.6}
.notice.err{background:var(--err-bg);color:#9a1c1c}
.notice.info{background:var(--brand-l);color:var(--brand-d)}
.notice a{font-weight:700}

/* ---------- Samples ---------- */
.samples{padding:64px 0}
.samples h2{text-align:center}
.samples .sub{text-align:center}
.sample-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:30px}
.sample-item{border:1px solid var(--line);padding:0;background:#fff;cursor:pointer;border-radius:14px;overflow:hidden;box-shadow:var(--sh-sm);transition:.18s}
.sample-item:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);border-color:#cfe0f0}
.sample-item img{aspect-ratio:1/1;object-fit:cover;width:100%}

/* ---------- FAQ ---------- */
.faq-home{padding:8px 0 72px}
.faq-home h2{text-align:center}
.faq-list{max-width:780px;margin:26px auto 0;display:grid;gap:12px}
.faq-list details,.article details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:2px 18px;box-shadow:var(--sh-sm)}
.faq-list summary,.article summary{cursor:pointer;font-weight:700;padding:15px 0;list-style:none;color:var(--ink);position:relative;padding-right:28px}
.faq-list summary::-webkit-details-marker,.article summary::-webkit-details-marker{display:none}
.faq-list summary::after,.article summary::after{content:"+";position:absolute;right:2px;top:50%;transform:translateY(-50%);color:var(--brand);font-size:20px;font-weight:400}
details[open] summary::after{content:"–"}
details[open] summary{color:var(--brand-d)}
.faq-list p,.article details p{margin:0 0 16px;color:var(--ink-2)}

/* ---------- Generic article page ---------- */
.article{padding:48px 24px;max-width:860px}
.article.center{text-align:center}
.error-detail{background:#0f1b2a;color:#ffb4b4;padding:16px;border-radius:10px;text-align:left;overflow:auto;font-size:12px;line-height:1.6}

/* ---------- Result page ---------- */
.result-page{padding:40px 24px}
.back{font-size:13px;font-weight:700;display:inline-block;margin-bottom:8px}
.strategy-card{margin:18px 0 26px;background:var(--brand-ll);border-color:#d4e6f7}
.strategy-card h3{color:var(--brand-d)}
.banner-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(248px,1fr));gap:20px}
.banner-card{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:var(--sh);transition:.18s}
.banner-card:hover{box-shadow:var(--sh-lg)}
.banner-card>img{width:100%;aspect-ratio:1/1;object-fit:cover;background:var(--bg)}
.banner-pending,.banner-fail{aspect-ratio:1/1;display:flex;align-items:center;justify-content:center;color:var(--muted);background:var(--bg);text-align:center;font-size:13px;flex-direction:column;gap:6px}
.banner-fail{color:var(--err)}.banner-fail span{font-size:11px;color:var(--muted)}
.banner-meta{padding:14px}
.banner-meta .tag{margin-bottom:8px}
.banner-meta strong{display:block;font-size:14px;color:var(--ink)}
.banner-meta p{font-size:13px;color:var(--muted);margin:5px 0}
.cta-pill{display:inline-block;background:var(--accent);color:#3a2600;font-weight:800;font-size:12px;padding:4px 11px;border-radius:var(--radius-pill)}
.banner-card a.block{margin:0 14px 14px}

/* ---------- Dashboard ---------- */
.dash{padding:40px 24px}
.dash-head{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-bottom:8px}
.credit-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius-pill);padding:8px 8px 8px 18px;font-size:14px;display:flex;align-items:center;gap:12px;box-shadow:var(--sh-sm)}
.credit-box strong{color:var(--brand-d);font-size:17px}
.dash h2{margin-top:32px;font-size:19px}

/* ---------- Tables ---------- */
.table{width:100%;border-collapse:separate;border-spacing:0;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;box-shadow:var(--sh-sm);margin:14px 0}
.table th,.table td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line-2);font-size:14px;vertical-align:middle}
.table thead th{background:var(--brand-ll);font-size:11.5px;color:var(--muted);text-transform:uppercase;letter-spacing:.04em;font-weight:800}
.table tbody tr:hover{background:var(--brand-ll)}
.table tr:last-child td{border-bottom:0}
.table td.pos{color:var(--ok);font-weight:700}
.table td.neg{color:var(--err);font-weight:700}

/* status pills */
.status{display:inline-block;font-size:11px;font-weight:800;padding:3px 10px;border-radius:var(--radius-pill);background:var(--line-2);color:var(--ink-2);text-transform:capitalize}
.status-done{background:var(--ok-bg);color:var(--ok)}
.status-failed{background:var(--err-bg);color:var(--err)}
.status-generating,.status-analyzing,.status-analyzed{background:var(--brand-l);color:var(--brand-d)}

/* ---------- Auth ---------- */
.auth-box{max-width:440px;margin:56px auto;padding:0 24px}
.auth-box .card{padding:30px}
.auth-box h1{font-size:24px;text-align:center}
.auth-alt{text-align:center;margin:18px 0 0;font-size:14px;color:var(--muted)}

/* ---------- Flash ---------- */
.flash-area{margin-top:16px;display:grid;gap:8px}
.flash{padding:12px 16px;border-radius:10px;font-size:14px;font-weight:600;border:1px solid transparent}
.flash-success{background:var(--ok-bg);color:var(--ok);border-color:#bfe6cb}
.flash-error{background:var(--err-bg);color:#9a1c1c;border-color:#f3c2c2}
.flash-info{background:var(--brand-l);color:var(--brand-d);border-color:#cfe5f7}

/* ---------- Footer ---------- */
.site-footer{background:#0f1b2a;color:#9fb0c4;padding:36px 0;margin-top:56px}
.foot-links{display:flex;gap:20px;flex-wrap:wrap;margin-bottom:12px}
.foot-links a{color:#d3deea;font-size:13px}
.foot-links a:hover{color:#fff}
.copy{font-size:12px;color:#7286a0;margin:0}

/* ---------- Admin ---------- */
.admin-top{display:flex;align-items:center;gap:14px;background:#0f1b2a;color:#cdd8e6;padding:0 24px;height:62px;position:sticky;top:0;z-index:40;flex-wrap:wrap}
.admin-top .brand{color:#fff;font-size:16px}
.admin-top .brand:hover{color:#fff}
.admin-top nav{display:flex;align-items:center;gap:4px;margin-left:auto;flex-wrap:wrap}
.admin-top nav a{color:#aab8c9;padding:8px 13px;border-radius:8px;font-size:13px;font-weight:600}
.admin-top nav a:hover{background:rgba(255,255,255,.1);color:#fff;text-decoration:none}
.admin-top nav a.reset-link{color:#f8b4b4}
.admin-top .btn-ghost{background:transparent;color:#cdd8e6;border-color:rgba(255,255,255,.2);padding:8px 14px;font-size:13px}
.admin-top .btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff}
.admin-main{padding:34px 24px;min-height:calc(100vh - 62px)}
.admin-main h1{font-size:24px;margin-bottom:18px}
.admin-main h2{font-size:18px;margin-top:30px}

.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:16px;margin:6px 0 12px}
.stat{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px;box-shadow:var(--sh-sm);color:var(--muted);font-size:13px;font-weight:600}
.stat span{display:block;font-size:30px;font-weight:900;color:var(--brand-d);line-height:1.1;margin-bottom:4px}

.settings-form{max-width:860px}
.settings-form fieldset{margin-bottom:20px}
.settings-form .btn-primary{margin-top:6px}
.credit-adjust{display:inline-flex;align-items:center;gap:8px}
.credit-adjust input[type=number]{margin:0}

/* ---------- Pricing extras ---------- */
.article .table{max-width:560px}

/* ---------- Setup (install / reset) ---------- */
body.setup{background:linear-gradient(160deg,#0a4d8a,#0f1b2a);min-height:100vh}
.setup-wrap{max-width:660px;margin:44px auto;background:#fff;border-radius:18px;box-shadow:var(--sh-lg);padding:34px}
.setup-wrap h1{font-size:25px}
.setup-wrap h2{font-size:17px;margin-top:26px}
.check-table{width:100%;border-collapse:collapse;margin:12px 0}
.check-table td{padding:8px 10px;border-bottom:1px solid var(--line-2);font-size:14px}
.check-table tr.pass td:nth-child(2){color:var(--ok);font-weight:900}
.check-table tr.fail td:nth-child(2){color:var(--err);font-weight:900}
.setup-form fieldset{margin:14px 0}
.ok-box{text-align:center;padding:10px}
.ok-box h2{color:var(--ok);margin-top:0}
.err-box{background:var(--err-bg);color:#9a1c1c;border-radius:10px;padding:12px 16px;margin:14px 0;border:1px solid #f3c2c2}
.err-box.danger{background:var(--warn-bg);border-color:#f3d9b0;color:var(--warn)}
.err-box ul{margin:0;padding-left:18px}
code{background:var(--bg);padding:2px 7px;border-radius:6px;font-size:13px;border:1px solid var(--line)}

/* ---------- Responsive ---------- */
@media(max-width:880px){
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-copy h1{font-size:33px}
  .sample-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:560px){
  h1{font-size:25px}
  .wrap{padding:0 16px}
  .row,.confirm-grid{grid-template-columns:1fr}
  .nav-links{gap:12px}
  .nav-links a:not(.btn-primary){font-size:13px}
  .credits-badge{display:none}
  .table{display:block;overflow-x:auto;white-space:nowrap}
  .confirm-actions{flex-direction:column}
}

/* ---------- Download formats / admin card ---------- */
.dl-row{display:flex;flex-wrap:wrap;gap:6px;margin:0 14px 14px}
.dl-row .btn-primary,.dl-row .btn-ghost{flex:1 1 auto;min-width:60px;padding:7px 10px;font-size:12px}
.card-box{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;box-shadow:var(--sh-sm)}
.card-box h3{margin-top:0;font-size:16px;color:var(--brand-d)}