/* KAGEKIRI site (landing, auth, account, admin) – built on the design system in /ds. Only tokens, no literals. */
html { scroll-behavior: smooth; }
body { min-height: 100vh; background: var(--kg-bg); background-image: var(--kg-haze); background-attachment: fixed; }
.wrap-x { width: min(1180px, 100%); margin: 0 auto; padding-inline: var(--kg-space-6); }
@media (max-width: 640px) { .wrap-x { padding-inline: var(--kg-space-4); } }

/* ---- top navigation */
.topnav { position: sticky; top: 0; z-index: var(--kg-z-sticky); background: var(--kg-chrome); backdrop-filter: blur(10px); border-bottom: 1px solid var(--kg-border); }
.topnav .wrap-x { display: flex; align-items: center; gap: var(--kg-space-6); height: 64px; }
.logo { display: flex; align-items: center; gap: var(--kg-space-3); text-decoration: none; color: var(--kg-text); }
.logo img { width: 40px; height: 40px; object-fit: contain; }
.logo b { font: var(--kg-weight-bold) 19px/1 var(--kg-font-display); letter-spacing: .08em; }
.logo small { display: block; font: 300 10px var(--kg-font-jp); letter-spacing: .5em; color: var(--kg-text-muted); }
.topnav nav { display: flex; gap: var(--kg-space-1); margin-left: auto; }
.topnav nav a { color: var(--kg-text-muted); text-decoration: none; font: var(--kg-weight-semibold) 14px var(--kg-font-display); padding: var(--kg-space-2) var(--kg-space-3); border-radius: var(--kg-radius-sm); }
.topnav nav a:hover { color: var(--kg-text); background: var(--kg-overlay-hover); }
.topnav .acts { display: flex; gap: var(--kg-space-2); align-items: center; margin-left: auto; }
.topnav nav + .acts { margin-left: var(--kg-space-4); }
@media (max-width: 900px) { .topnav nav { display: none; } .topnav nav + .acts { margin-left: auto; } }

/* ---- hero */
.hero-l { position: relative; overflow: hidden; padding-block: var(--kg-space-16) var(--kg-space-12); }
.hero-l .wrap-x { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: var(--kg-space-8); align-items: center; }
.hero-l h1 { font-size: clamp(38px, 5.4vw, 66px); line-height: 1.04; letter-spacing: -.025em; }
.hero-l .lead { font-size: 18px; line-height: 1.6; color: var(--kg-text-muted); max-width: 54ch; margin-top: var(--kg-space-5); }
.hero-l .ctas { display: flex; flex-wrap: wrap; gap: var(--kg-space-3); margin-top: var(--kg-space-8); align-items: center; }
.hero-l .proof { margin-top: var(--kg-space-6); display: flex; flex-wrap: wrap; gap: var(--kg-space-2); }
.mock { position: relative; display: flex; flex-direction: column; gap: var(--kg-space-4); align-items: center; }
.mock-phone { width: 250px; aspect-ratio: 9 / 16; border-radius: 34px; padding: 10px; background: var(--kg-surface-3); border: 1px solid var(--kg-border-strong); box-shadow: var(--kg-shadow-xl); }
.mock-screen { position: relative; height: 100%; border-radius: 26px; overflow: hidden; display: flex; flex-direction: column; justify-content: flex-end; gap: 6px; padding: 18px;
  background: linear-gradient(160deg, var(--kg-teal-800), var(--kg-navy-900) 60%, var(--kg-ink-1000)); color: var(--kg-media-text); }
.mock-screen::before { content: ""; position: absolute; inset: 0; background: radial-gradient(120% 60% at 70% 20%, rgba(255,255,255,.12), transparent 60%); }
.mock-top { position: absolute; top: 16px; left: 16px; right: 16px; display: flex; justify-content: space-between; }
.mock-title { position: relative; font: 700 28px/1 var(--kg-font-display); letter-spacing: -.01em; }
.mock-sub { position: relative; font-size: 13px; opacity: .8; }
.mock-progress { position: relative; display: grid; gap: 6px; margin-top: 10px; font-size: 11px; opacity: .85; }
.mock-tl { width: min(460px, 100%); display: grid; gap: 10px; padding: 14px 16px; }
.mock-row { display: grid; grid-template-columns: 64px 1fr; align-items: center; gap: 10px; }
.mock-track { position: relative; height: 22px; border-radius: 6px; background: var(--kg-bg-sunken); overflow: hidden; }
.mock-track .seg { position: absolute; top: 3px; bottom: 3px; border-radius: 3px; background: color-mix(in srgb, var(--kg-accent) 35%, var(--kg-surface-3)); }
.mock-track .seg.hl { background: var(--kg-accent); }
.mock-track.beats i { position: absolute; top: 6px; bottom: 6px; width: 1px; background: var(--kg-border-strong); }
.mock-track.beats i.bar { top: 2px; bottom: 2px; width: 2px; background: var(--kg-accent-text); }
.auth-logo { position: absolute; inset: 0; display: grid; place-items: center; padding: 15%; }
.auth-logo img { position: static !important; transform: none !important; width: min(420px, 80%); height: auto !important; }
.hero-jp-bg { position: absolute; right: -2vw; top: 40px; font: 300 min(20vw, 260px)/1 var(--kg-font-jp); color: var(--kg-overlay-press); pointer-events: none; user-select: none; }
.stage { position: relative; height: 560px; }
.stage img { position: absolute; bottom: 0; height: 100%; width: auto; max-width: none; filter: drop-shadow(0 30px 40px rgba(0,0,0,.45)); }
.stage img:nth-child(1) { right: 22%; z-index: 2; }
.stage img:nth-child(2) { right: -4%; height: 92%; z-index: 1; opacity: .95; }
.stage img:nth-child(n+3) { display: none; }

@media (max-width: 900px) {
  .hero-l .wrap-x { grid-template-columns: 1fr; }
  .stage { height: 380px; order: -1; }
}

/* ---- sections */
.sec { padding-block: var(--kg-space-16); position: relative; }
.sec-head { display: flex; flex-direction: column; gap: var(--kg-space-2); margin-bottom: var(--kg-space-8); max-width: 720px; }
.sec-head p { color: var(--kg-text-muted); font-size: 16px; line-height: 1.6; }
.steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--kg-space-4); counter-reset: s; }
.step-c { position: relative; padding: var(--kg-space-6); }
.step-c .n { font: var(--kg-weight-bold) 56px/1 var(--kg-font-display); color: transparent; -webkit-text-stroke: 1px var(--kg-border-strong); position: absolute; right: var(--kg-space-5); top: var(--kg-space-4); }
.step-c h3 { margin-bottom: var(--kg-space-2); }
.step-c p { color: var(--kg-text-muted); font-size: 14px; line-height: 1.6; }
.feat { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--kg-space-4); }
.feat .card { display: flex; flex-direction: column; gap: var(--kg-space-2); }
.feat .ico { width: 40px; height: 40px; display: grid; place-items: center; font-size: 20px; border-radius: var(--kg-radius-md); background: var(--kg-accent-soft); color: var(--kg-accent-text); margin-bottom: var(--kg-space-2); }
.feat .ico.hy { background: color-mix(in srgb, var(--kg-hype) 18%, transparent); color: var(--kg-warning-text); }
.feat .ico.lr { background: var(--kg-info-soft); color: var(--kg-learn-text); }
.feat p { color: var(--kg-text-muted); font-size: 14px; line-height: 1.6; }
@media (max-width: 900px) { .steps, .feat { grid-template-columns: 1fr; } }

/* ---- credits + pricing */
.costs { display: flex; flex-wrap: wrap; gap: var(--kg-space-2); }
.cost { display: flex; align-items: center; gap: var(--kg-space-2); padding: var(--kg-space-2) var(--kg-space-3); border: 1px solid var(--kg-border); border-radius: var(--kg-radius-pill); background: var(--kg-surface-1); font-size: 13px; }
.cost b { font-family: var(--kg-font-mono); color: var(--kg-accent-text); }
.plans { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--kg-space-4); align-items: stretch; }
.plan { display: flex; flex-direction: column; gap: var(--kg-space-4); padding: var(--kg-space-6); }
.plan.hl { border-color: var(--kg-accent); box-shadow: 0 0 0 1px var(--kg-accent); }
.plan .badge-top { align-self: flex-start; }
.plan .price { font: var(--kg-weight-bold) 40px/1 var(--kg-font-display); letter-spacing: -.02em; }
.plan .price small { font: 500 14px var(--kg-font-body); color: var(--kg-text-muted); letter-spacing: 0; }
.plan .cr { font-family: var(--kg-font-mono); color: var(--kg-accent-text); font-size: 13px; }
.plan ul { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--kg-space-2); font-size: 14px; color: var(--kg-text-muted); flex: 1; }
.plan li::before { content: ""; display: inline-block; width: 14px; height: 14px; vertical-align: -2px; margin-right: var(--kg-space-2); background: var(--kg-success-text);
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E") center / contain no-repeat;
          mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E") center / contain no-repeat; }
@media (max-width: 1100px) { .plans { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) { .plans { grid-template-columns: 1fr; } }

/* ---- faq */
.faq { display: grid; gap: var(--kg-space-2); max-width: 820px; }
.faq details { border: 1px solid var(--kg-border); border-radius: var(--kg-radius-lg); background: var(--kg-surface-1); }
.faq summary { cursor: pointer; padding: var(--kg-space-4) var(--kg-space-5); font: var(--kg-weight-semibold) 16px var(--kg-font-display); list-style: none; display: flex; justify-content: space-between; gap: var(--kg-space-4); }
.faq summary::after { content: "+"; color: var(--kg-accent-text); font-size: 20px; line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq details p { padding: 0 var(--kg-space-5) var(--kg-space-5); color: var(--kg-text-muted); line-height: 1.65; margin: 0; }

.cta-band { padding: var(--kg-space-10) var(--kg-space-8); display: flex; align-items: center; justify-content: space-between; gap: var(--kg-space-6); flex-wrap: wrap; }
footer.site { border-top: 1px solid var(--kg-border); padding-block: var(--kg-space-8); color: var(--kg-text-subtle); font-size: 13px; }
footer.site .wrap-x { display: flex; justify-content: space-between; gap: var(--kg-space-4); flex-wrap: wrap; }
footer.site a { color: var(--kg-text-muted); text-decoration: none; margin-left: var(--kg-space-4); }
footer.site a:hover { color: var(--kg-text); }

/* ---- auth pages */
.auth { min-height: calc(100vh - 64px); display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
.auth-art { position: relative; overflow: hidden; border-right: 1px solid var(--kg-border); background: linear-gradient(160deg, var(--kg-surface-1), var(--kg-bg)); }
.auth-art img { position: absolute; bottom: 0; left: 50%; transform: translateX(-50%); height: 88%; max-width: none; }
.auth-art .quote { position: absolute; left: var(--kg-space-8); top: var(--kg-space-8); max-width: 360px; z-index: 2; }
.auth-form { display: grid; place-items: center; padding: var(--kg-space-8) var(--kg-space-4); }
.auth-form form { width: min(420px, 100%); display: flex; flex-direction: column; gap: var(--kg-space-4); }
.auth-form input:not([type=checkbox]) { height: var(--kg-size-control-lg); font-size: 15px; }
@media (max-width: 900px) { .auth { grid-template-columns: 1fr; } .auth-art { display: none; } }

/* ---- account + admin */
.dash { padding-block: var(--kg-space-8) var(--kg-space-16); display: flex; flex-direction: column; gap: var(--kg-space-6); }
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: var(--kg-space-3); }
.kpi { padding: var(--kg-space-4) var(--kg-space-5); }
.kpi b { display: block; font: var(--kg-weight-bold) 32px/1.1 var(--kg-font-display); font-variant-numeric: tabular-nums; }
.kpi span { font-size: 12px; color: var(--kg-text-muted); text-transform: uppercase; letter-spacing: .1em; }
.tbl-box { overflow-x: auto; border: 1px solid var(--kg-border); border-radius: var(--kg-radius-lg); background: var(--kg-surface-1); }
table.t { width: 100%; border-collapse: collapse; font-size: 13px; }
table.t th, table.t td { padding: 10px 14px; border-bottom: 1px solid var(--kg-border); text-align: left; vertical-align: middle; white-space: nowrap; }
table.t th { font: var(--kg-weight-semibold) 11px var(--kg-font-body); letter-spacing: .1em; text-transform: uppercase; color: var(--kg-text-muted); background: var(--kg-surface-2); position: sticky; top: 0; }
table.t tr:last-child td { border-bottom: 0; }
table.t td.num { font-family: var(--kg-font-mono); font-variant-numeric: tabular-nums; }
table.t tr:hover td { background: var(--kg-overlay-hover); }
.pos { color: var(--kg-success-text); } .neg { color: var(--kg-danger-text); }
.meter { height: 8px; border-radius: var(--kg-radius-pill); background: var(--kg-bg-sunken); border: 1px solid var(--kg-border); overflow: hidden; }
.meter i { display: block; height: 100%; width: var(--v, 0%); background: var(--kg-gradient-brand); }
.chars-admin { display: flex; flex-wrap: wrap; gap: var(--kg-space-3); }
.chars-admin figure { margin: 0; width: 140px; display: flex; flex-direction: column; gap: var(--kg-space-2); align-items: center; }
.chars-admin img { height: 180px; width: auto; border-radius: var(--kg-radius-md); background: var(--kg-media-stage); }
.plan-edit { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: var(--kg-space-3); }
#toasts { position: fixed; right: 20px; bottom: 20px; z-index: var(--kg-z-toast); display: flex; flex-direction: column; gap: 8px; align-items: flex-end; }
.legal { max-width: 760px; white-space: pre-wrap; line-height: 1.7; color: var(--kg-text-muted); }