:root {
  --bg: #FAF9F6;
  --panel: #ffffff;
  --ink: #1A1A2E;
  --ink-soft: #5A5A72;
  --accent: #6C5CE7;
  --accent-soft: #E8E6FF;
  --border: #E4E1DA;
  --error: #E5484D;
  --success: #2E7D32;
  --warn: #B8860B;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body { font-family: 'Noto Sans JP', sans-serif; background: var(--bg); color: var(--ink); line-height: 1.7; min-height: 100vh; }
h1, h2, h3 { font-family: 'Zen Kaku Gothic New', sans-serif; font-weight: 700; letter-spacing: 0.02em; }
a { color: var(--accent); text-decoration: none; }
button { font-family: inherit; }

/* ===== Topbar ===== */
.topbar { background: rgba(250,249,246,0.92); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 50; }
.topbar-inner { max-width: 1240px; margin: 0 auto; padding: 0.85rem 1.5rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.logo { font-family: 'Zen Kaku Gothic New', sans-serif; font-weight: 700; font-size: 1.15rem; display: flex; align-items: center; gap: 8px; color: var(--ink); }
.logo-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); }
.topbar-right { display: flex; align-items: center; gap: 1rem; font-size: 13px; color: var(--ink-soft); }
.plan-pill { display: inline-flex; align-items: center; gap: 6px; background: var(--accent-soft); color: var(--accent); font-weight: 700; padding: 0.3rem 0.8rem; border-radius: 999px; font-size: 12px; }
.usage-pill { display: inline-flex; align-items: center; gap: 6px; padding: 0.3rem 0.8rem; border-radius: 999px; font-size: 12px; background: var(--bg); border: 1px solid var(--border); }
.usage-pill .bar { width: 50px; height: 5px; border-radius: 3px; background: var(--border); overflow: hidden; }
.usage-pill .bar-fill { height: 100%; background: var(--accent); }
.btn-logout { background: transparent; border: 1px solid var(--border); border-radius: 999px; padding: 0.45rem 1.1rem; font-size: 13px; color: var(--ink-soft); cursor: pointer; }
.btn-logout:hover { border-color: var(--accent); color: var(--accent); }

/* ===== Layout ===== */
.app-layout { max-width: 1240px; margin: 0 auto; padding: 1.5rem; display: grid; grid-template-columns: 220px 1fr; gap: 1.5rem; align-items: start; }
@media (max-width: 900px) { .app-layout { grid-template-columns: 1fr; } }

/* ===== Sidebar ===== */
.sidebar { background: var(--panel); border: 1px solid var(--border); border-radius: 16px; padding: 0.75rem; position: sticky; top: 80px; }
@media (max-width: 900px) { .sidebar { position: static; display: flex; overflow-x: auto; gap: 0.4rem; padding: 0.6rem; } }
.nav-item { display: flex; align-items: center; gap: 0.7rem; padding: 0.7rem 0.85rem; border-radius: 10px; font-size: 14px; color: var(--ink-soft); cursor: pointer; transition: background 0.15s, color 0.15s; white-space: nowrap; border: none; background: none; width: 100%; text-align: left; font-family: inherit; }
@media (max-width: 900px) { .nav-item { width: auto; } }
.nav-item .num { display: inline-flex; align-items: center; justify-content: center; width: 22px; height: 22px; border-radius: 50%; background: var(--bg); color: var(--ink-soft); font-size: 11px; font-weight: 700; flex-shrink: 0; }
.nav-item:hover { background: var(--bg); color: var(--ink); }
.nav-item.active { background: var(--accent-soft); color: var(--accent); }
.nav-item.active .num { background: var(--accent); color: #fff; }
.nav-item.locked { opacity: 0.55; }
.nav-item .lock-icon { margin-left: auto; font-size: 12px; }

/* ===== Main panel ===== */
.main-col { display: flex; flex-direction: column; gap: 1.25rem; min-width: 0; }
.panel { background: var(--panel); border: 1px solid var(--border); border-radius: 16px; padding: 1.75rem; position: relative; }
.panel-head { margin-bottom: 1.25rem; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; font-size: 12px; color: var(--accent); font-weight: 500; letter-spacing: 0.15em; text-transform: uppercase; margin-bottom: 0.6rem; }
.eyebrow::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.panel-head h2 { font-size: 1.3rem; margin-bottom: 0.4rem; }
.panel-head p { font-size: 13.5px; color: var(--ink-soft); }

.feature-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
@media (max-width: 760px) { .feature-grid { grid-template-columns: 1fr; } }

.field { margin-bottom: 1rem; }
.field label { display: block; font-size: 13px; font-weight: 500; color: var(--ink); margin-bottom: 0.4rem; }
.field input, .field select, .field textarea { width: 100%; font-family: inherit; font-size: 14px; padding: 0.7rem 0.9rem; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); color: var(--ink); }
.field textarea { resize: vertical; min-height: 110px; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--accent); background: #fff; }
.field .hint { font-size: 12px; color: var(--ink-soft); margin-top: 0.3rem; }

.btn-primary { background: var(--accent); color: #fff; border: none; border-radius: 999px; padding: 0.8rem 1.8rem; font-size: 14px; font-weight: 500; cursor: pointer; transition: opacity 0.2s; }
.btn-primary:hover { opacity: 0.9; }
.btn-primary:disabled { opacity: 0.55; cursor: not-allowed; }
.btn-secondary { background: var(--panel); color: var(--accent); border: 1.5px solid var(--accent); border-radius: 999px; padding: 0.7rem 1.6rem; font-size: 13.5px; font-weight: 500; cursor: pointer; transition: background 0.2s; }
.btn-secondary:hover { background: var(--accent-soft); }
.btn-outline { background: transparent; color: var(--ink); border: 1px solid var(--border); border-radius: 999px; padding: 0.8rem 1.8rem; font-size: 14px; font-weight: 500; cursor: pointer; }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }

.result-box { margin-top: 1.5rem; padding-top: 1.5rem; border-top: 1px solid var(--border); display: none; }
.result-box.show { display: block; }
.result-box.loading { text-align: center; color: var(--ink-soft); font-size: 13px; padding: 2rem 0; }
.spinner { width: 28px; height: 28px; border: 3px solid var(--accent-soft); border-top-color: var(--accent); border-radius: 50%; margin: 0 auto 0.75rem; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* score meters */
.score-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0.85rem; margin-bottom: 1.25rem; }
@media (max-width: 760px) { .score-grid { grid-template-columns: repeat(2, 1fr); } }
.score-card { background: var(--bg); border: 1px solid var(--border); border-radius: 12px; padding: 1rem 0.75rem; text-align: center; }
.score-card .ring { width: 64px; height: 64px; margin: 0 auto 0.5rem; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 1.1rem; color: var(--ink); font-family: 'Zen Kaku Gothic New', sans-serif; }
.score-card .label { font-size: 11.5px; color: var(--ink-soft); line-height: 1.4; }

.summary-box { background: var(--accent-soft); border-left: 3px solid var(--accent); border-radius: 0 8px 8px 0; padding: 1rem 1.25rem; font-size: 13.5px; color: var(--ink); line-height: 1.8; margin-bottom: 1.25rem; }

table.result-table { width: 100%; border-collapse: collapse; font-size: 13px; }
table.result-table th, table.result-table td { border: 1px solid var(--border); padding: 0.6rem 0.85rem; text-align: left; vertical-align: top; }
table.result-table th { background: var(--bg); color: var(--ink-soft); font-weight: 500; }
@media (max-width: 600px) { table.result-table { font-size: 12px; } table.result-table th, table.result-table td { padding: 0.45rem 0.6rem; } }

.tag-list { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.tag { background: var(--bg); border: 1px solid var(--border); border-radius: 999px; padding: 0.35rem 0.85rem; font-size: 12px; color: var(--ink-soft); }
.tag.hl { background: var(--accent-soft); color: var(--accent); border-color: transparent; font-weight: 500; }

pre.code-block { background: #1A1A2E; color: #E8E6FF; padding: 1rem 1.25rem; border-radius: 10px; font-size: 12px; overflow-x: auto; line-height: 1.6; white-space: pre-wrap; word-break: break-word; }
.copy-btn { font-size: 12px; background: var(--bg); border: 1px solid var(--border); border-radius: 999px; padding: 0.35rem 0.9rem; cursor: pointer; margin-bottom: 0.6rem; color: var(--ink-soft); }
.copy-btn:hover { border-color: var(--accent); color: var(--accent); }

.faq-item { background: var(--bg); border: 1px solid var(--border); border-radius: 10px; padding: 1rem 1.25rem; margin-bottom: 0.75rem; }
.faq-item .q { font-weight: 700; font-size: 13.5px; margin-bottom: 0.4rem; display: flex; gap: 0.5rem; }
.faq-item .a { font-size: 13px; color: var(--ink-soft); }

.share-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.85rem; margin-bottom: 1.25rem; }
@media (max-width: 760px) { .share-grid { grid-template-columns: repeat(2, 1fr); } }
.share-card { background: var(--bg); border: 1px solid var(--border); border-radius: 12px; padding: 1rem; text-align: center; }
.share-card .engine { font-size: 12px; color: var(--ink-soft); margin-bottom: 0.5rem; }
.share-card .pct { font-family: 'Zen Kaku Gothic New', sans-serif; font-size: 1.6rem; font-weight: 700; }
.share-card .trend { font-size: 11px; margin-top: 0.3rem; }
.trend.up { color: var(--success); }
.trend.down { color: var(--error); }
.trend.flat { color: var(--ink-soft); }

/* ===== Overlays (gate / lock / login) ===== */
.overlay-screen { display: none; min-height: calc(100vh - 64px); align-items: center; justify-content: center; padding: 2rem 1.5rem; }
.overlay-screen.show { display: flex; }
.overlay-card { background: var(--panel); border: 1px solid var(--border); border-radius: 20px; padding: 2.5rem; max-width: 480px; width: 100%; text-align: center; }
.overlay-card h2 { font-size: 1.4rem; margin-bottom: 0.6rem; }
.overlay-card p { font-size: 13.5px; color: var(--ink-soft); margin-bottom: 1.5rem; }
.overlay-card .field { text-align: left; }
.form-message { font-size: 13px; padding: 0.7rem 1rem; border-radius: 8px; margin-bottom: 1rem; display: none; }
.form-message.show { display: block; }
.form-message.success { background: #E8F5E9; color: var(--success); }
.form-message.error { background: #FDECEC; color: var(--error); }

/* plan picker */
.plan-pick-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin: 1.5rem 0; }
@media (max-width: 700px) { .plan-pick-grid { grid-template-columns: 1fr; } }
.plan-pick { border: 1px solid var(--border); border-radius: 14px; padding: 1.25rem 1rem; text-align: left; cursor: pointer; transition: border-color 0.15s, transform 0.1s; background: var(--bg); }
.plan-pick:hover { border-color: var(--accent); transform: translateY(-2px); }
.plan-pick.featured { border-color: var(--accent); background: var(--accent-soft); }
.plan-pick .pname { font-family: 'Zen Kaku Gothic New', sans-serif; font-weight: 700; font-size: 1.05rem; margin-bottom: 0.3rem; }
.plan-pick .pprice { font-size: 1.4rem; font-weight: 700; font-family: 'Zen Kaku Gothic New', sans-serif; margin-bottom: 0.5rem; }
.plan-pick .pprice span { font-size: 12px; font-weight: 400; color: var(--ink-soft); }
.plan-pick ul { list-style: none; font-size: 12px; color: var(--ink-soft); display: grid; gap: 0.3rem; margin-bottom: 0.85rem; }
.plan-pick ul li::before { content: '✓ '; color: var(--accent); font-weight: 700; }
.plan-pick .btn-primary { width: 100%; font-size: 13px; padding: 0.65rem; }

/* lock overlay within a panel */
.feature-lock { position: absolute; inset: 0; background: rgba(250,249,246,0.85); backdrop-filter: blur(3px); border-radius: 16px; display: flex; align-items: center; justify-content: center; flex-direction: column; gap: 0.75rem; text-align: center; padding: 2rem; z-index: 5; }
.feature-lock .icon { font-size: 1.8rem; }
.feature-lock h3 { font-size: 1.05rem; }
.feature-lock p { font-size: 13px; color: var(--ink-soft); max-width: 320px; }

/* main dashboard hero panel (site monitoring) */
.panel-hero { border: 1px solid var(--accent); background: linear-gradient(180deg, var(--accent-soft) 0%, var(--panel) 220px); padding: 2rem 1.75rem; }
.panel-hero .eyebrow { color: var(--accent); }
.panel-hero .panel-head h2 { font-family: 'Zen Kaku Gothic New', sans-serif; font-size: 1.55rem; }
.panel-hero .panel-head p { max-width: 640px; }
.hero-footer-note { margin-top: 1.75rem; padding-top: 1.25rem; border-top: 1px dashed var(--border); }
.hero-footer-note p { font-size: 12.5px; color: var(--ink-soft); }

/* sidebar section label (separates hero nav item from the tool list) */
.nav-section-label { font-size: 10.5px; color: var(--ink-soft); text-transform: uppercase; letter-spacing: 0.1em; padding: 0.9rem 0.85rem 0.35rem; margin: 0; }

/* loading splash */
#loadingSplash { display: flex; min-height: 100vh; align-items: center; justify-content: center; flex-direction: column; gap: 1rem; color: var(--ink-soft); font-size: 13px; }

.hidden { display: none !important; }