/* Dopamine 공개 사이트 — 어두운 바탕이 기본, 시스템이 밝은 모드면 밝게. 앱의 Neon Twist(노랑 프레임·시안 제목)를 절제해서. */

:root {
  color-scheme: dark;
  --bg: #0b0c0d;
  --bg-1: #101113;
  --bg-2: #15161a;
  --bg-3: #1d1e23;
  --line: #24252b;
  --line-2: #34353c;
  --fg: #dcdfe3;
  --fg-2: #a9adb5;
  --muted: #7a7f88;
  --strong: #ffffff;
  --accent: #f3e600;
  --accent-2: #fff35e;
  --accent-soft: rgba(243, 230, 0, 0.1);
  --accent-line: rgba(243, 230, 0, 0.38);
  --on-accent: #0b0c0d;
  --cyan: #5ee6f0;
  --cyan-soft: rgba(94, 230, 240, 0.1);
  --ok: #5cf09a;
  --warn: #ffb020;
  --err: #ff6b82;
  --err-soft: rgba(255, 77, 106, 0.12);
  --shadow: 0 20px 60px -20px rgba(0, 0, 0, 0.7);
  --grid: rgba(255, 255, 255, 0.035);
  --chamfer: 14px;
  --chamfer-s: 7px;
  --radius: 4px;
  --wrap: 1120px;
  --font: "Pretendard Variable", "Pretendard", -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic", "Noto Sans KR", system-ui, sans-serif;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: light) {
  :root {
    color-scheme: light;
    --bg: #f7f7f4;
    --bg-1: #ffffff;
    --bg-2: #f0f0ec;
    --bg-3: #e6e6e0;
    --line: #e1e1da;
    --line-2: #cfcfc6;
    --fg: #23252a;
    --fg-2: #4a4e57;
    --muted: #6c707a;
    --strong: #0b0c0d;
    --accent: #e8d800;
    --accent-2: #f3e600;
    --accent-soft: rgba(200, 180, 0, 0.12);
    --accent-line: rgba(140, 125, 0, 0.45);
    --on-accent: #0b0c0d;
    --cyan: #007f8c;
    --cyan-soft: rgba(0, 127, 140, 0.08);
    --ok: #138a4a;
    --warn: #a86400;
    --err: #c8203f;
    --err-soft: rgba(200, 32, 63, 0.08);
    --shadow: 0 20px 50px -24px rgba(30, 30, 20, 0.28);
    --grid: rgba(0, 0, 0, 0.04);
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.65 var(--font);
  letter-spacing: -0.005em;
  word-break: keep-all;
  overflow-wrap: anywhere;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
main { flex: 1; }
a { color: inherit; }
img, svg { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }
code, kbd, pre { font-family: var(--mono); font-size: 0.92em; }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; }
::selection { background: rgba(94, 230, 240, 0.25); }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
[hidden] { display: none !important; }

/* ------------------------------------------------------------------ header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(1.4) blur(14px);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap { display: flex; align-items: center; gap: 28px; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--strong); flex-shrink: 0; }
.brand-mark { width: 26px; height: 26px; }
.brand-name { font-weight: 800; font-size: 19px; letter-spacing: -0.02em; }
.chip {
  display: inline-flex;
  align-items: center;
  height: 20px;
  padding: 0 7px;
  border: 1px solid var(--accent-line);
  color: var(--accent);
  background: var(--accent-soft);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  clip-path: polygon(0 0, calc(100% - 5px) 0, 100% 5px, 100% 100%, 5px 100%, 0 calc(100% - 5px));
}
@media (prefers-color-scheme: light) { .chip { color: #6d6300; } }

.nav { display: flex; align-items: center; gap: 4px; flex: 1; }
.nav a {
  position: relative;
  padding: 8px 14px;
  text-decoration: none;
  color: var(--fg-2);
  font-weight: 600;
  font-size: 15px;
  border-radius: var(--radius);
  transition: color 0.15s, background 0.15s;
}
.nav a:hover { color: var(--strong); background: var(--bg-2); }
.nav a[aria-current="page"] { color: var(--strong); }
.nav a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: -13px;
  height: 2px;
  background: var(--accent);
}
.nav-admin { margin-left: auto; font-size: 13px !important; color: var(--muted) !important; }
.nav-admin:hover { color: var(--fg) !important; }
.nav-admin[aria-current="page"] { color: var(--strong) !important; }

.nav-toggle {
  display: none;
  margin-left: auto;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line-2);
  background: transparent;
  border-radius: var(--radius);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--fg);
  position: relative;
  transition: transform 0.2s, background 0.2s;
}
.nav-toggle span::before, .nav-toggle span::after { content: ""; position: absolute; left: 0; }
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }
.nav-open .nav-toggle span { background: transparent; }
.nav-open .nav-toggle span::before { transform: translateY(6px) rotate(45deg); }
.nav-open .nav-toggle span::after { transform: translateY(-6px) rotate(-45deg); }

@media (max-width: 720px) {
  .site-header .wrap { gap: 12px; }
  .nav-toggle { display: inline-flex; }
  .nav {
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 16px 16px;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
    display: none;
  }
  .nav-open .nav { display: flex; }
  .nav a { padding: 14px 8px; font-size: 16px; border-radius: 0; border-bottom: 1px solid var(--line); }
  .nav a:last-child { border-bottom: 0; }
  .nav a[aria-current="page"]::after { left: 0; right: auto; top: 14px; bottom: 14px; width: 3px; height: auto; }
  .nav a[aria-current="page"] { padding-left: 16px; }
  .nav-admin { margin-left: 0; }
}

/* ------------------------------------------------------------------ footer */

.site-footer { border-top: 1px solid var(--line); margin-top: 96px; padding: 32px 0 40px; color: var(--muted); font-size: 14px; }
.site-footer .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 24px; }
.site-footer nav { display: flex; gap: 18px; flex-wrap: wrap; }
.site-footer a { text-decoration: none; color: var(--fg-2); }
.site-footer a:hover { color: var(--strong); }
.footer-brand { display: flex; align-items: center; gap: 10px; }
.footer-brand strong { color: var(--fg); }

/* ------------------------------------------------------------------ type & buttons */

h1, h2, h3 { color: var(--strong); line-height: 1.25; letter-spacing: -0.025em; margin: 0; }
h1 { font-size: clamp(34px, 5vw, 54px); font-weight: 800; letter-spacing: -0.035em; }
h2 { font-size: clamp(26px, 3.6vw, 36px); font-weight: 800; }
h3 { font-size: 19px; font-weight: 700; }
p { margin: 0; }
.lead { font-size: clamp(17px, 2vw, 19px); color: var(--fg-2); max-width: 640px; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
}
.eyebrow::before { content: ""; width: 18px; height: 1px; background: currentColor; }
.hl { color: var(--accent); }
@media (prefers-color-scheme: light) {
  .hl { color: var(--strong); background: linear-gradient(transparent 62%, var(--accent-2) 62%); }
}

.btn {
  --c: var(--chamfer-s);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 20px;
  border: 0;
  font-weight: 700;
  font-size: 15px;
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
  background: var(--bg-3);
  color: var(--strong);
  clip-path: polygon(0 0, calc(100% - var(--c)) 0, 100% var(--c), 100% 100%, var(--c) 100%, 0 calc(100% - var(--c)));
  transition: background 0.15s, color 0.15s, transform 0.1s, filter 0.15s;
}
.btn:hover { background: var(--line-2); }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); color: var(--on-accent); }
.btn-primary:hover { background: var(--accent-2); }
.btn-ghost { background: transparent; color: var(--fg); box-shadow: inset 0 0 0 1px var(--line-2); }
.btn-ghost:hover { background: var(--bg-2); }
.btn-sm { min-height: 34px; padding: 0 12px; font-size: 13px; --c: 5px; }
.btn-lg { min-height: 52px; padding: 0 28px; font-size: 16px; --c: 10px; }
.btn[disabled], .btn[aria-disabled="true"] { opacity: 0.45; cursor: not-allowed; pointer-events: none; }
.btn svg { width: 18px; height: 18px; flex-shrink: 0; }

/* chamfered frame (Neon Twist 의 사선 모서리) */
.frame {
  --c: var(--chamfer);
  position: relative;
  background: var(--line);
  padding: 1px;
  clip-path: polygon(0 0, calc(100% - var(--c)) 0, 100% var(--c), 100% 100%, var(--c) 100%, 0 calc(100% - var(--c)));
}
.frame > .frame-in {
  height: 100%;
  background: var(--bg-1);
  clip-path: polygon(0 0, calc(100% - var(--c) + 0.4px) 0, 100% calc(var(--c) - 0.4px), 100% 100%, calc(var(--c) - 0.4px) 100%, 0 calc(100% - var(--c) + 0.4px));
}
.frame-accent { background: var(--accent-line); }

/* ------------------------------------------------------------------ home */

.hero { position: relative; padding: 88px 0 72px; overflow: hidden; }
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse 80% 70% at 60% 30%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 60% 30%, #000 30%, transparent 75%);
  pointer-events: none;
}
.hero .wrap { position: relative; display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; }
.hero h1 { margin: 18px 0 20px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.hero-meta { margin-top: 22px; font-size: 13px; color: var(--muted); display: flex; flex-wrap: wrap; gap: 6px 16px; }
.hero-meta span::before { content: "✓ "; color: var(--ok); }

.mock { box-shadow: var(--shadow); }
.mock .frame-in { display: flex; flex-direction: column; min-height: 340px; }
.mock-bar { display: flex; align-items: center; gap: 8px; padding: 10px 14px; border-bottom: 1px solid var(--line); font-family: var(--mono); font-size: 12px; color: var(--muted); }
.mock-bar i { width: 9px; height: 9px; border-radius: 50%; background: var(--line-2); }
.mock-bar b { margin-left: 8px; font-weight: 500; color: var(--fg-2); }
.mock-body { display: grid; grid-template-columns: 1fr 1fr; flex: 1; }
.mock-graph { border-right: 1px solid var(--line); padding: 10px; display: flex; align-items: center; justify-content: center; }
.mock-graph svg { width: 100%; height: auto; }
.mock-term { padding: 14px; font-family: var(--mono); font-size: 12px; line-height: 1.75; color: var(--fg-2); }
.mock-term .p { color: var(--cyan); }
.mock-term .y { color: var(--accent); }
.mock-term .ok { color: var(--ok); }
.mock-term .dim { color: var(--muted); }
.caret { display: inline-block; width: 7px; height: 14px; background: var(--accent); vertical-align: -2px; animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .caret { animation: none; } html { scroll-behavior: auto; } }
@media (prefers-color-scheme: light) { .mock-term .y { color: #7a6f00; } }

.section { padding: 72px 0; }
.section-head { max-width: 680px; margin-bottom: 40px; }
.section-head h2 { margin: 14px 0 12px; }
.section-head p { color: var(--fg-2); }

.products { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.product { transition: transform 0.18s, background 0.18s; }
.product:hover { transform: translateY(-3px); background: var(--accent-line); }
.product .frame-in { padding: 24px 22px 22px; display: flex; flex-direction: column; gap: 10px; }
.product-icon { width: 42px; height: 42px; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent); margin-bottom: 6px; clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px)); }
.product-icon svg { width: 22px; height: 22px; }
@media (prefers-color-scheme: light) { .product-icon { color: #6d6300; } }
.product h3 { display: flex; align-items: baseline; gap: 6px; }
.product h3 small { font-size: 12px; font-weight: 600; color: var(--muted); }
.product p { color: var(--fg-2); font-size: 14.5px; }
.product ul { margin: 6px 0 0; padding: 0; list-style: none; font-size: 13.5px; color: var(--fg-2); display: grid; gap: 4px; }
.product li { position: relative; padding-left: 14px; }
.product li::before { content: ""; position: absolute; left: 0; top: 0.72em; width: 6px; height: 1px; background: var(--cyan); }

.features { display: grid; gap: 20px; }
.feature { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; padding: 36px 0; border-top: 1px solid var(--line); }
.feature:first-child { border-top: 0; }
.feature:nth-child(even) .feature-art { order: -1; }
.feature h3 { font-size: clamp(21px, 2.6vw, 26px); margin: 12px 0 12px; }
.feature p { color: var(--fg-2); }
.feature-points { margin: 18px 0 0; padding: 0; list-style: none; display: grid; gap: 8px; font-size: 15px; }
.feature-points li { display: flex; gap: 10px; }
.feature-points li::before { content: "▸"; color: var(--accent); flex-shrink: 0; }
@media (prefers-color-scheme: light) { .feature-points li::before { color: #8a7d00; } }
.feature-art .frame-in { padding: 22px; min-height: 220px; display: flex; flex-direction: column; justify-content: center; gap: 10px; }

.art-row { display: flex; align-items: center; gap: 10px; padding: 10px 12px; background: var(--bg-2); font-size: 13.5px; }
.art-row .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); flex-shrink: 0; box-shadow: 0 0 0 3px color-mix(in srgb, var(--ok) 20%, transparent); }
.art-row .dot.busy { background: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.art-row .dot.wait { background: var(--cyan); box-shadow: 0 0 0 3px var(--cyan-soft); }
.art-row code { color: var(--cyan); font-size: 12.5px; }
.art-row .r { margin-left: auto; color: var(--muted); font-size: 12px; font-family: var(--mono); }
.art-tools { display: flex; flex-wrap: wrap; gap: 8px; }
.art-tools span { font-family: var(--mono); font-size: 12px; padding: 6px 10px; background: var(--bg-2); color: var(--fg-2); border: 1px solid var(--line); }
.art-tools span.on { color: var(--cyan); border-color: color-mix(in srgb, var(--cyan) 40%, transparent); background: var(--cyan-soft); }
.phone { width: 210px; margin: 0 auto; border: 1px solid var(--line-2); border-radius: 26px; padding: 14px 12px; background: var(--bg-2); display: grid; gap: 8px; }
.phone .notch { width: 60px; height: 5px; border-radius: 3px; background: var(--line-2); margin: 0 auto 6px; }
.phone .note { background: var(--bg-1); border: 1px solid var(--line); border-radius: 12px; padding: 9px 11px; font-size: 12px; }
.phone .note b { display: block; color: var(--strong); font-size: 12.5px; margin-bottom: 2px; }
.phone .note .acts { display: flex; gap: 6px; margin-top: 8px; }
.phone .note .acts span { flex: 1; text-align: center; padding: 4px 0; border-radius: 6px; background: var(--bg-3); font-size: 11.5px; }
.phone .note .acts span.y { background: var(--accent); color: var(--on-accent); font-weight: 700; }

.cta-band .frame-in { padding: 48px; display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap; background: linear-gradient(120deg, var(--bg-1) 40%, color-mix(in srgb, var(--accent) 7%, var(--bg-1))); }
.cta-band h2 { font-size: clamp(24px, 3vw, 32px); }
.cta-band p { color: var(--fg-2); margin-top: 8px; }

@media (max-width: 980px) {
  .hero .wrap { grid-template-columns: 1fr; gap: 44px; }
  .products { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
  .wrap { padding: 0 16px; }
  .hero { padding: 48px 0 40px; }
  .section { padding: 48px 0; }
  .products { grid-template-columns: 1fr; }
  .feature { grid-template-columns: 1fr; gap: 24px; padding: 28px 0; }
  .feature:nth-child(even) .feature-art { order: 0; }
  .mock-body { grid-template-columns: 1fr; }
  .mock-graph { border-right: 0; border-bottom: 1px solid var(--line); }
  .cta-band .frame-in { padding: 28px 22px; }
  .site-footer { margin-top: 56px; }
}

/* ------------------------------------------------------------------ page head */

.page-head { padding: 56px 0 28px; }
.page-head h1 { font-size: clamp(30px, 4.6vw, 44px); margin: 14px 0 12px; }
.page-head p { color: var(--fg-2); max-width: 640px; }
@media (max-width: 720px) { .page-head { padding: 36px 0 20px; } }

/* ------------------------------------------------------------------ download */

.tabs { display: inline-flex; gap: 4px; padding: 4px; background: var(--bg-2); border: 1px solid var(--line); border-radius: 8px; margin-bottom: 28px; max-width: 100%; overflow-x: auto; }
.tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  border: 0;
  border-radius: 5px;
  background: transparent;
  color: var(--fg-2);
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  white-space: nowrap;
}
.tab [data-icon], .tab svg { width: 17px; height: 17px; display: inline-flex; }
.tab [data-icon] svg { width: 100%; height: 100%; }
.tab:hover { color: var(--strong); }
.tab[aria-selected="true"] { background: var(--bg-1); color: var(--strong); box-shadow: 0 1px 0 var(--line-2), inset 0 -2px 0 var(--accent); }
.tab .here { font-size: 11px; font-weight: 600; color: var(--cyan); }

.apps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.apps.single { grid-template-columns: minmax(0, 520px); }
.app-card .frame-in { padding: 24px; display: flex; flex-direction: column; gap: 14px; }
.app-card header { display: flex; align-items: center; gap: 12px; }
.app-card header .product-icon { margin: 0; flex-shrink: 0; }
.app-card h3 { font-size: 18px; }
.app-card .desc { color: var(--fg-2); font-size: 14.5px; flex: 1; }
.dl-list { display: grid; gap: 10px; }
.dl { display: grid; gap: 8px; padding: 14px; background: var(--bg-2); border: 1px solid var(--line); }
.dl-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.dl-label { font-weight: 600; font-size: 14px; color: var(--strong); }
.dl-meta { display: flex; flex-wrap: wrap; gap: 4px 12px; font-size: 12.5px; color: var(--muted); }
.dl-meta .v { font-family: var(--mono); color: var(--cyan); }
.dl .btn { width: 100%; }
.dl.none { color: var(--muted); font-size: 14px; }
.dl.none .dl-label { color: var(--fg-2); }
.dl.mine { border-color: var(--accent-line); }

.install { margin-top: 32px; }
.install h2, .history h2 { font-size: 22px; margin-bottom: 8px; }
.install > p, .history > p { color: var(--fg-2); font-size: 15px; margin-bottom: 16px; }
.cmd { display: flex; align-items: stretch; background: var(--bg-1); border: 1px solid var(--line); margin-bottom: 10px; }
.cmd-label { display: flex; align-items: center; padding: 0 14px; font-size: 12px; font-weight: 700; color: var(--muted); border-right: 1px solid var(--line); white-space: nowrap; }
.cmd pre { flex: 1; margin: 0; padding: 14px 16px; overflow-x: auto; color: var(--fg); font-size: 13.5px; white-space: pre; }
.cmd pre::before { content: "$ "; color: var(--muted); }
.cmd.ps pre::before { content: "> "; }
.copy { flex-shrink: 0; border: 0; border-left: 1px solid var(--line); background: transparent; padding: 0 16px; cursor: pointer; color: var(--fg-2); font-size: 13px; font-weight: 600; display: inline-flex; align-items: center; gap: 6px; }
.copy:hover { background: var(--bg-2); color: var(--strong); }
.copy.done { color: var(--ok); }
.copy svg { width: 15px; height: 15px; }
.note-box { padding: 14px 16px; background: var(--cyan-soft); border: 1px solid color-mix(in srgb, var(--cyan) 30%, transparent); color: var(--fg); font-size: 14.5px; border-radius: var(--radius); }
.note-box strong { color: var(--strong); }

.history { margin-top: 56px; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); background: var(--bg-1); }
table { width: 100%; border-collapse: collapse; font-size: 14px; overflow-wrap: normal; }
.history table { min-width: 620px; }
th, td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 12px; font-weight: 700; letter-spacing: 0.04em; color: var(--muted); background: var(--bg-2); white-space: nowrap; }
tr:last-child td { border-bottom: 0; }
td.v { font-family: var(--mono); color: var(--cyan); white-space: nowrap; }
td.d { white-space: nowrap; color: var(--fg-2); font-variant-numeric: tabular-nums; }
td.n { color: var(--fg-2); min-width: 220px; }
td.a { white-space: nowrap; }
.empty { padding: 28px; text-align: center; color: var(--muted); }
.history-tools { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 14px; }
.check { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; color: var(--fg-2); cursor: pointer; }
.check input { accent-color: var(--accent); width: 16px; height: 16px; }

.skeleton { background: linear-gradient(90deg, var(--bg-2), var(--bg-3), var(--bg-2)); background-size: 200% 100%; animation: shimmer 1.3s infinite; min-height: 260px; }
@keyframes shimmer { to { background-position: -200% 0; } }

@media (max-width: 980px) { .apps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 720px) {
  .apps, .apps.single { grid-template-columns: 1fr; }
  .tabs { display: flex; }
  .tab { flex: 1; justify-content: center; padding: 9px 10px; }
  .tab .here { display: none; }
  .cmd { flex-wrap: wrap; }
  .cmd-label { width: 100%; border-right: 0; border-bottom: 1px solid var(--line); padding: 8px 14px; }
  .copy { border-left: 0; border-top: 1px solid var(--line); width: 100%; justify-content: center; padding: 10px; }
  th, td { padding: 10px 12px; }
}

/* ------------------------------------------------------------------ forms */

.form-card { max-width: 720px; }
.form-card .frame-in { padding: 32px; }
.form { display: grid; gap: 20px; }
.row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: grid; gap: 7px; }
.field label, .field .label { font-size: 14px; font-weight: 600; color: var(--strong); display: flex; align-items: baseline; justify-content: space-between; gap: 8px; }
.field label small { font-weight: 500; color: var(--muted); font-size: 12.5px; }
.input, .select, .textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  padding: 11px 13px;
  font-size: 15px;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.textarea { min-height: 200px; resize: vertical; line-height: 1.6; }
.select { appearance: none; -webkit-appearance: none; padding-right: 36px; background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%); background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%; background-size: 5px 5px; background-repeat: no-repeat; cursor: pointer; }
.input:hover, .select:hover, .textarea:hover { border-color: var(--muted); }
.input:focus, .select:focus, .textarea:focus { outline: 0; border-color: var(--cyan); box-shadow: 0 0 0 3px var(--cyan-soft); }
.input[aria-invalid="true"], .textarea[aria-invalid="true"] { border-color: var(--err); }
.hint { font-size: 12.5px; color: var(--muted); display: flex; justify-content: space-between; gap: 10px; }
.hint .over { color: var(--err); font-weight: 700; }
.err-text { font-size: 13px; color: var(--err); }
.form-foot { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.form-foot p { font-size: 13px; color: var(--muted); max-width: 400px; }

.segmented { display: flex; gap: 8px; flex-wrap: wrap; }
.segmented label { flex: 1 1 0; min-width: 100px; cursor: pointer; display: block; position: relative; }
.segmented input { position: absolute; opacity: 0; pointer-events: none; }
.segmented span { height: 100%; display: flex; flex-direction: column; gap: 2px; padding: 11px 14px; border: 1px solid var(--line-2); border-radius: var(--radius); background: var(--bg); font-weight: 600; font-size: 14.5px; color: var(--fg); transition: border-color 0.15s, background 0.15s; }
.segmented span small { font-weight: 500; font-size: 12px; color: var(--muted); }
.segmented label:hover span { border-color: var(--muted); }
.segmented input:checked + span { border-color: var(--accent); background: var(--accent-soft); color: var(--strong); box-shadow: inset 0 0 0 1px var(--accent); }
.segmented input:focus-visible + span { outline: 2px solid var(--cyan); outline-offset: 2px; }

.alert { padding: 13px 16px; border-radius: var(--radius); font-size: 14.5px; border: 1px solid; }
.alert-err { background: var(--err-soft); border-color: color-mix(in srgb, var(--err) 40%, transparent); color: var(--err); }
.done-state { text-align: center; padding: 28px 8px; display: grid; justify-items: center; gap: 12px; }
.done-state .badge-big { width: 56px; height: 56px; display: grid; place-items: center; background: var(--accent); color: var(--on-accent); clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 12px 100%, 0 calc(100% - 12px)); }
.done-state .badge-big svg { width: 28px; height: 28px; }
.done-state h2 { font-size: 24px; }
.done-state p { color: var(--fg-2); }

.contact-layout { display: grid; grid-template-columns: minmax(0, 720px) 1fr; gap: 40px; align-items: start; }
.aside { display: grid; gap: 16px; font-size: 14.5px; color: var(--fg-2); }
.aside h3 { font-size: 15px; margin-bottom: 4px; }
.aside .frame-in { padding: 20px; }

.spinner { width: 16px; height: 16px; border: 2px solid currentColor; border-right-color: transparent; border-radius: 50%; animation: spin 0.7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

@media (max-width: 980px) { .contact-layout { grid-template-columns: 1fr; } }
@media (max-width: 720px) {
  .row-2 { grid-template-columns: 1fr; }
  .form-card .frame-in { padding: 22px 18px; }
  .form-foot .btn { width: 100%; }
}

/* ------------------------------------------------------------------ admin */

.login-card { max-width: 420px; margin: 24px auto 0; }
.login-card .frame-in { padding: 32px; }
.login-card h1 { font-size: 26px; margin-bottom: 6px; }
.login-card > .frame-in > p { color: var(--fg-2); font-size: 14.5px; margin-bottom: 24px; }
.login-card .btn { width: 100%; }

.admin-bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding: 32px 0 20px; }
.admin-bar h1 { font-size: 28px; }
.admin-who { display: flex; align-items: center; gap: 12px; font-size: 14px; color: var(--fg-2); }
.filters { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 16px; }
.filters .select { width: auto; min-width: 140px; padding-top: 8px; padding-bottom: 8px; font-size: 14px; }
.filters .count { margin-left: auto; font-size: 13px; color: var(--muted); }

.admin-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr); gap: 16px; align-items: start; }
.fb-list { border: 1px solid var(--line); background: var(--bg-1); max-height: calc(100vh - 230px); overflow-y: auto; }
.fb-item { display: grid; gap: 4px; width: 100%; text-align: left; padding: 14px 16px; border: 0; border-bottom: 1px solid var(--line); background: transparent; cursor: pointer; position: relative; }
.fb-item:last-child { border-bottom: 0; }
.fb-item:hover { background: var(--bg-2); }
.fb-item[aria-current="true"] { background: var(--bg-2); box-shadow: inset 3px 0 0 var(--accent); }
.fb-item .t { font-weight: 600; color: var(--strong); font-size: 14.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.fb-item.is-new .t::before { content: ""; display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); margin-right: 8px; vertical-align: 2px; }
.fb-item .s { font-size: 13px; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.fb-item .m { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; font-size: 12px; color: var(--muted); }

.badge { display: inline-flex; align-items: center; height: 20px; padding: 0 7px; border-radius: 3px; font-size: 11.5px; font-weight: 700; background: var(--bg-3); color: var(--fg-2); white-space: nowrap; }
.badge.k-bug { background: var(--err-soft); color: var(--err); }
.badge.k-inquiry { background: var(--cyan-soft); color: var(--cyan); }
.badge.k-suggestion { background: color-mix(in srgb, #c38cff 14%, transparent); color: #b98aff; }
.badge.st-new { background: var(--accent); color: var(--on-accent); }
.badge.st-read { background: var(--bg-3); color: var(--fg-2); }
.badge.st-done { background: color-mix(in srgb, var(--ok) 15%, transparent); color: var(--ok); }
@media (prefers-color-scheme: light) { .badge.k-suggestion { color: #7b3fd0; } }

.fb-detail .frame-in { padding: 24px; min-height: 300px; }
.fb-detail .placeholder { color: var(--muted); display: grid; place-items: center; min-height: 250px; text-align: center; font-size: 14.5px; }
.fb-detail h2 { font-size: 21px; margin: 10px 0 8px; }
.fb-head { display: flex; gap: 6px; flex-wrap: wrap; }
.fb-from { font-size: 13.5px; color: var(--fg-2); display: grid; gap: 2px; padding: 12px 0; border-bottom: 1px solid var(--line); margin-bottom: 16px; }
.fb-from a { color: var(--cyan); }
.fb-body { white-space: pre-wrap; font-size: 15px; line-height: 1.7; margin-bottom: 20px; }
.fb-meta h3 { font-size: 13px; color: var(--muted); font-weight: 700; letter-spacing: 0.04em; margin-bottom: 8px; }
.fb-meta pre { margin: 0; padding: 14px; background: var(--bg); border: 1px solid var(--line); overflow: auto; max-height: 360px; font-size: 12.5px; line-height: 1.55; color: var(--fg-2); }
.fb-actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; padding-top: 16px; margin-top: 20px; border-top: 1px solid var(--line); }
.fb-actions .label { font-size: 13px; color: var(--muted); margin-right: 4px; }
.fb-actions .btn[aria-pressed="true"] { background: var(--accent); color: var(--on-accent); }
.back-link { display: none; margin-bottom: 12px; }
.j-key { color: var(--cyan); }
.j-str { color: #9be86b; }
.j-num { color: var(--accent); }
.j-lit { color: #ff6b9a; }
@media (prefers-color-scheme: light) { .j-str { color: #2f7d12; } .j-num { color: #8a6d00; } .j-lit { color: #c0245f; } }

@media (max-width: 860px) {
  .admin-grid { grid-template-columns: 1fr; }
  .fb-list { max-height: none; }
  #admin-view.show-detail .fb-list, #admin-view.show-detail .filters { display: none; }
  #admin-view:not(.show-detail) .fb-detail { display: none; }
  .back-link { display: inline-flex; }
}

/* ------------------------------------------------------------------ toast */

.toast { position: fixed; left: 50%; bottom: 28px; transform: translate(-50%, 20px); opacity: 0; background: var(--strong); color: var(--bg); padding: 10px 18px; border-radius: 6px; font-size: 14px; font-weight: 600; pointer-events: none; transition: opacity 0.2s, transform 0.2s; z-index: 100; box-shadow: var(--shadow); }
.toast.show { opacity: 1; transform: translate(-50%, 0); }