/* Spedo – ciemny motyw w duchu Apple: czerń, warstwowe szarości, jeden kolor akcji i gradient "magii" tylko przy AI. */
@property --spin { syntax: '<angle>'; inherits: false; initial-value: 0deg; }
:root {
  --bg: #000;
  --surface: #1c1c1e;
  --surface2: #2c2c2e;
  --surface3: #3a3a3c;
  --line: rgba(255,255,255,.08);
  --ink: #f5f5f7;
  --mut: #a1a1a6;
  --dim: #6e6e73;
  --ac: #0a84ff;
  --ac-hover: #409cff;
  --sel: rgba(10,132,255,.14);
  --ok: #30d158;
  --err: #ff6961;
  --warn: #ffd60a;
  --magic: #64d2ff, #5e5ce6, #bf5af2, #ff375f, #ff9f0a, #64d2ff;
  --r-lg: 28px;
  --r-md: 18px;
  --r-sm: 12px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", "Helvetica Neue", "Segoe UI", system-ui, sans-serif;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { background: var(--bg); }
body {
  margin: 0; color: var(--ink); font: 17px/1.47 var(--font); letter-spacing: -.01em;
  -webkit-font-smoothing: antialiased;
  background: radial-gradient(1100px 520px at 50% -160px, rgba(94,92,230,.22), transparent 70%), var(--bg);
  background-repeat: no-repeat;
  min-height: 100vh;
}
::selection { background: rgba(10,132,255,.45); }

/* ---------- nagłówek ---------- */
.topbar {
  position: sticky; top: 0; z-index: 20;
  background: rgba(0,0,0,.72); backdrop-filter: saturate(180%) blur(20px); -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--line);
  padding-top: env(safe-area-inset-top, 0px);
}
.topbar .in {
  max-width: 1120px; margin: 0 auto; min-height: 56px;
  padding: 8px max(20px, env(safe-area-inset-right)) 8px max(20px, env(safe-area-inset-left));
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 20px; letter-spacing: -.02em; }
.tabs { display: flex; gap: 2px; background: var(--surface); border-radius: 999px; padding: 3px; margin: 0 auto; flex-wrap: wrap; }
.tabs button {
  background: transparent; border: 0; color: var(--mut); padding: 7px 16px; border-radius: 999px;
  font: 500 14px var(--font); cursor: pointer; transition: color .2s, background .2s;
}
.tabs button:hover { color: var(--ink); background: rgba(255,255,255,.06); }
.tabs { scrollbar-width: none; }
.tabs::-webkit-scrollbar { display: none; }
.tabs button.on, .tabs button.on:hover { background: var(--surface3); color: var(--ink); }
.langpick { position: relative; margin: 0; }
.langpick select { margin: 0; width: auto; padding: 6px 28px 6px 12px; border-radius: 999px; background: var(--surface); border: 0; font-size: 13px; color: var(--ink); appearance: none; -webkit-appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--mut) 50%), linear-gradient(135deg, var(--mut) 50%, transparent 50%);
  background-position: calc(100% - 15px) 52%, calc(100% - 10px) 52%; background-size: 5px 5px; background-repeat: no-repeat; cursor: pointer; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.who { display: flex; align-items: center; gap: 12px; font-size: 13px; color: var(--mut); min-width: 0; }
.who span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 24ch; }
@media (min-width: 821px) { .topbar .in { flex-wrap: nowrap; } .tabs { flex-wrap: nowrap; } .tabs button { white-space: nowrap; } }
@media (min-width: 821px) and (max-width: 1100px) { .who span { display: none; } }
.tabs[hidden] + .langpick { margin-left: auto; }

/* ---------- układ ---------- */
main { max-width: 1120px; margin: 0 auto; padding: 28px max(20px, env(safe-area-inset-right)) 80px max(20px, env(safe-area-inset-left)); }
.narrow { max-width: 440px; margin: 0 auto; }
h1, h2, h3 { letter-spacing: -.022em; text-wrap: balance; }
h2 { font-size: 22px; font-weight: 600; margin: 0 0 6px; }
h3 { font-size: 17px; font-weight: 600; margin: 22px 0 8px; }
.pan { background: var(--surface); border-radius: var(--r-md); padding: 24px; margin-bottom: 20px; }
.note { font-size: 13px; color: var(--mut); margin: 6px 0 0; }
.note.dim, .dim { color: var(--dim); }
.gate .note { margin: 0 0 18px; }
/* Czynności nieodwracalne: usunięcie konta i firmy, przekazanie firmy */
.danger-zone { margin-top: 22px; padding-top: 16px; border-top: 1px solid var(--line); }
.danger-zone h3 { margin-top: 0; }
button.danger { background: var(--err); color: #fff; font-weight: 600; }
button.danger:hover { background: #ff8580; }
.note.sep { margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--line); }
.center { text-align: center; }
.lead2 { margin: 0 0 8px; }
.err { color: var(--err); font-size: 14px; margin: 6px 0 0; min-height: 1.2em; }

/* ---------- powitanie i okno zapytania ---------- */
.welcome { max-width: 760px; margin: 5vh auto 56px; text-align: center; display: flex; flex-direction: column; align-items: center; }
.welcome h1 { font-size: clamp(36px, 6vw, 56px); line-height: 1.05; font-weight: 700; letter-spacing: -.035em; margin: 0 0 12px; }
.welcome .sub { font-size: 19px; color: var(--mut); margin: 0 0 32px; }
.prompt { position: relative; width: 100%; border-radius: var(--r-lg); isolation: isolate; }
.prompt textarea {
  display: block; width: 100%; min-height: 220px; resize: vertical; margin: 0;
  background: var(--surface); color: var(--ink); border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 26px 28px; font: 400 19px/1.5 var(--font); letter-spacing: -.01em;
  box-shadow: 0 30px 80px -30px rgba(0,0,0,.8);
  transition: border-color .25s, background .25s;
}
.prompt textarea::placeholder { color: var(--dim); }
.prompt textarea:focus { outline: none; border-color: rgba(255,255,255,.22); background: #1f1f22; }
/* Świecąca krawędź, gdy AI czyta zapytanie. */
.prompt::before, .prompt::after {
  content: ""; position: absolute; inset: -2px; border-radius: calc(var(--r-lg) + 2px); z-index: -1;
  background: conic-gradient(from var(--spin), var(--magic)); opacity: 0; transition: opacity .4s;
}
.prompt::after { inset: -10px; filter: blur(28px); }
.prompt.thinking::before { opacity: 1; animation: spin 2.4s linear infinite; }
.prompt.thinking::after { opacity: .55; animation: spin 2.4s linear infinite; }
.prompt.thinking textarea { border-color: transparent; }

/* Przycisk z "magią": obracający się gradient na obrysie i miękka poświata. */
.magic {
  position: relative; isolation: isolate; margin-top: 28px;
  display: inline-flex; align-items: center; gap: 10px;
  padding: 17px 34px; border: 0; border-radius: 999px; cursor: pointer;
  font: 600 18px var(--font); letter-spacing: -.01em; color: #fff; background: transparent;
  transition: transform .2s cubic-bezier(.2,.8,.2,1);
}
.magic::before { content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1.5px; z-index: -1;
  background: conic-gradient(from var(--spin), var(--magic)); animation: spin 6s linear infinite;
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; }
.magic::after { content: ""; position: absolute; inset: 1.5px; border-radius: inherit; z-index: -2;
  background: radial-gradient(120% 140% at 50% 0%, #2a2a33, #111114 70%);
  box-shadow: 0 0 40px -6px rgba(124,108,255,.55), 0 0 90px -20px rgba(255,55,95,.35); transition: box-shadow .3s; }
.magic .spark { width: 20px; height: 20px; fill: #fff; filter: drop-shadow(0 0 6px rgba(160,140,255,.9)); }
.magic:hover { transform: translateY(-1px) scale(1.02); }
.magic:hover::after { box-shadow: 0 0 56px -4px rgba(124,108,255,.8), 0 0 120px -16px rgba(255,55,95,.5); }
.magic:active { transform: scale(.98); }
.magic.busy::before { animation-duration: 1.2s; }
.magic.busy .spark { animation: pulse 1s ease-in-out infinite; }
.magic:disabled { cursor: progress; opacity: 1; }
@keyframes spin { to { --spin: 360deg; } }
@keyframes pulse { 50% { transform: scale(.8) rotate(20deg); opacity: .7; } }

/* ---------- formularze ---------- */
label { display: block; font-size: 13px; color: var(--mut); margin-bottom: 12px; }
input, select, textarea {
  width: 100%; margin-top: 6px; padding: 12px 14px; border: 1px solid transparent; border-radius: var(--r-sm);
  background: var(--surface2); color: var(--ink); font: 400 16px var(--font); letter-spacing: -.01em;
  transition: border-color .2s, background .2s;
}
textarea { min-height: 260px; line-height: 1.5; }
textarea.short { min-height: 90px; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--ac); background: #303033; }
input[readonly] { background: transparent; border-color: var(--line); color: var(--mut); }
input:disabled, select:disabled, textarea:disabled { opacity: .6; }
input[type=date]::-webkit-calendar-picker-indicator { filter: invert(.8); }
.fg { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 0 14px; margin: 14px 0; }
.fg .wide { grid-column: 1 / -1; }
.tr { display: flex; gap: 10px; align-items: stretch; flex-wrap: wrap; }
.tr input { flex: 1 1 200px; margin-top: 6px; }
.tr button { margin-top: 6px; }
#subj { font-weight: 600; }

/* ---------- przyciski ---------- */
button, .btnlink {
  padding: 11px 20px; border: 0; border-radius: 999px; background: var(--surface3); color: var(--ink);
  font: 500 15px var(--font); letter-spacing: -.01em; cursor: pointer; text-decoration: none; display: inline-block;
  transition: background .2s, transform .15s;
}
button:hover, .btnlink:hover { background: #48484a; }
button.primary { background: var(--ac); color: #fff; font-weight: 600; }
button.primary:hover { background: var(--ac-hover); }
button.s, .btnlink.s { background: transparent; color: var(--ac); padding-left: 12px; padding-right: 12px; }
button.s:hover, .btnlink.s:hover { background: var(--sel); }
button.sm { padding: 5px 12px; font-size: 13px; margin: 4px 4px 0 0; }
button.link { background: none; padding: 0; color: var(--ac); font-weight: 500; border-radius: 0; }
button.link:hover { text-decoration: underline; background: none; }
button.ghost { background: var(--surface); color: var(--ink); padding: 6px 14px; font-size: 13px; }
button:disabled { opacity: .5; cursor: progress; }
.wide-btn { width: 100%; padding: 13px; }
:focus-visible { outline: 2px solid var(--ac); outline-offset: 3px; }
.bar { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 18px; align-items: center; }
.push { margin-left: auto; }
.filebtn { display: inline-block; margin: 0; padding: 11px 20px; border-radius: 999px; background: var(--ac); color: #fff; font: 600 15px var(--font); cursor: pointer; }
.filebtn:hover { background: var(--ac-hover); }
.filebtn input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.filebtn:focus-within { outline: 2px solid var(--ac); outline-offset: 3px; }

/* ---------- logowanie ---------- */
.intro { text-align: center; margin: 6vh 0 28px; }
.intro img { border-radius: 16px; box-shadow: 0 20px 60px -10px rgba(94,92,230,.55); }
.intro h1 { font-size: 44px; font-weight: 700; letter-spacing: -.04em; margin: 18px 0 6px; }
.intro p { color: var(--mut); font-size: 17px; margin: 0 auto; max-width: 34ch; }
.seg { display: flex; background: var(--surface2); border-radius: 10px; padding: 3px; margin-bottom: 20px; }
.seg button { flex: 1; background: transparent; border-radius: 8px; color: var(--mut); padding: 8px 10px; font-weight: 500; font-size: 14px; }
.seg button:hover { background: transparent; color: var(--ink); }
.seg button.on { background: var(--surface3); color: var(--ink); box-shadow: 0 2px 8px rgba(0,0,0,.4); }
.seg.small { max-width: 480px; }
.oauth { display: grid; gap: 10px; }
.obtn { display: block; text-align: center; padding: 13px 16px; border-radius: 999px; background: var(--ink); color: #000; font-weight: 600; font-size: 15px; text-decoration: none; transition: opacity .2s; }
.obtn:hover { opacity: .88; }
.obtn.apple { background: var(--surface3); color: var(--ink); }
.or { display: flex; align-items: center; gap: 12px; color: var(--dim); font-size: 13px; margin: 20px 0; }
.or::before, .or::after { content: ""; flex: 1; border-top: 1px solid var(--line); }
.invite-info { background: var(--sel); border-radius: var(--r-sm); padding: 12px 14px; margin-bottom: 16px; font-size: 15px; }

/* ---------- komunikaty ---------- */
.warn, .notice { border-radius: var(--r-sm); padding: 12px 16px; margin: 0 0 16px; font-size: 15px; }
.warn { background: rgba(255,214,10,.1); color: #ffe27a; }
.notice { background: rgba(48,209,88,.12); color: #7ee29a; }
.notice.bad { background: rgba(255,105,97,.12); color: #ffa39e; }
#demoBar { text-align: center; font-size: 13px; padding: 8px 14px; background: rgba(191,90,242,.12); color: #d9a8f7; }

/* ---------- tabele (listy w stylu iOS) ---------- */
.w { overflow-x: auto; margin: 0 -8px; padding: 0 8px; }
table { width: 100%; border-collapse: collapse; }
th { text-align: left; font-size: 12px; color: var(--dim); font-weight: 500; padding: 10px 12px; white-space: nowrap; text-transform: uppercase; letter-spacing: .04em; }
td { padding: 14px 12px; vertical-align: top; text-align: left; border-top: 1px solid var(--line); font-variant-numeric: tabular-nums; }
tbody tr { transition: background .15s; }
tbody tr:hover td { background: rgba(255,255,255,.025); }
table.rank tbody { counter-reset: r; }
table.rank tbody tr { counter-increment: r; }
table.rank td:first-child { width: 36px; }
table.rank tr:has(input:checked) td { background: var(--sel); }
table.rank td:nth-child(2) b::before { content: counter(r); display: inline-grid; place-items: center; width: 22px; height: 22px; border-radius: 50%; background: var(--surface3); color: var(--ink); font-size: 12px; font-weight: 600; margin-right: 10px; }
td input[type=checkbox] { width: 20px; height: 20px; accent-color: var(--ac); margin-top: 1px; }
.why { font-size: 13px; color: var(--mut); }
.sc { display: block; height: 6px; border-radius: 99px; margin: 6px 0 4px; width: 8px; background: linear-gradient(90deg, #5e5ce6, #0a84ff); }
.kpis { display: flex; gap: 12px; flex-wrap: wrap; margin: 12px 0 16px; }
.kpi { background: var(--surface2); border-radius: var(--r-sm); padding: 12px 18px; }
.kpi b { display: block; font-size: 24px; font-weight: 600; letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.kpi span { font-size: 13px; color: var(--mut); }
.results { list-style: none; padding: 0; margin: 14px 0 0; display: grid; gap: 6px; }
.results li { background: var(--surface2); border-radius: 10px; padding: 9px 14px; font-size: 14px; display: flex; gap: 10px; align-items: baseline; }
.results li::before { content: ""; width: 8px; height: 8px; border-radius: 50%; flex: none; transform: translateY(-1px); }
.results li.ok::before { background: var(--ok); }
.results li.bad::before { background: var(--err); }
.plain { list-style: none; padding: 0; margin: 10px 0 0; }
.plain li { padding: 8px 0; border-top: 1px solid var(--line); display: flex; gap: 10px; justify-content: space-between; align-items: center; flex-wrap: wrap; }

[hidden] { display: none !important; }

@media (max-width: 820px) {
  .topbar .in { gap: 10px; }
  .langpick { margin-left: auto; }
  .tabs { order: 3; width: 100%; justify-content: space-between; margin: 0; overflow-x: auto; flex-wrap: nowrap; }
  .tabs button { padding: 7px 10px; font-size: 13px; flex: 1 0 auto; }
  .who span { max-width: 18ch; }
}
@media (max-width: 520px) {
  .welcome { margin-top: 2vh; }
  .welcome .sub { font-size: 17px; margin-bottom: 22px; }
  .prompt textarea { padding: 20px; font-size: 17px; min-height: 180px; }
  .pan { padding: 18px; }
  .who span { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .magic::before, .prompt.thinking::before, .prompt.thinking::after, .magic.busy .spark { animation: none; }
  .magic, .magic:hover { transform: none; }
}