/* ─────────────────────────────────────────────────────────────────────
 * Nixora AI — shared stylesheet
 * Used by every page (index, legal). Page-specific rules live in a
 * small <style> block inside each page.
 * ──────────────────────────────────────────────────────────────────── */

:root {
  --bg: #ffffff;
  --ink: #0f0f0f;
  --ink-2: #2a2a2a;
  --mute: #6b6b73;
  --mute-2: #9a9aa3;
  --line: #ececef;
  --line-2: #f3f3f5;
  --tint: #fafafb;
  --tint-2: #f6f6f8;
  --accent: #0f0f0f;
  --green: #16a34a;
  --green-tint: #eafbe7;
  --green-ink: #166534;
  --red: #dc2626;
  --red-tint: #fef2f2;
  --amber: #b45309;
  --amber-tint: #fef3c7;
  --radius-pill: 999px;
  --radius-card: 16px;
  --radius-input: 26px;
  --maxw: 1180px;
  --pad: clamp(20px, 4vw, 40px);

  --font-sans: 'Inter', ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--ink); overflow-x: hidden; }
body {
  font-family: var(--font-sans);
  font-size: 16px; line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "cv11" 1, "ss01" 1;
}
.mono { font-family: var(--font-mono); font-feature-settings: "tnum" 1; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
img, svg { max-width: 100%; }
::selection { background: #0f0f0f; color: #fff; }
:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; border-radius: 6px; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding-left: var(--pad); padding-right: var(--pad); }

/* ─────────── NAV ─────────── */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .82);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav-row {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px; gap: 24px;
}
.logo { display: flex; align-items: center; gap: 10px; font-weight: 600; letter-spacing: -0.015em; color: var(--ink); }
.logo-mark {
  width: 30px; height: 30px; border-radius: 50%;
  border: 1px solid var(--line); display: grid; place-items: center;
  background: #fff;
}
.logo-mark svg { width: 17px; height: 17px; color: #0f0f0f; }
.logo-name { font-size: 16px; letter-spacing: -0.01em; }
.logo-name b { font-weight: 700; }

.nav-links { display: flex; gap: 26px; color: var(--mute); font-size: 14.5px; }
.nav-links a { transition: color .15s ease; }
.nav-links a:hover { color: var(--ink); }
.nav-right { display: flex; align-items: center; gap: 8px; }

/* ─────────── SEGMENTED CONTROL (lang, juris, doc) ─────────── */
.seg {
  display: inline-flex; align-items: center;
  border: 1px solid var(--line); border-radius: var(--radius-pill); padding: 3px; gap: 2px;
  background: #fff;
}
.seg button {
  font-size: 11.5px; font-weight: 500; letter-spacing: 0.04em;
  padding: 5px 10px; border-radius: var(--radius-pill); color: var(--mute);
  transition: background .15s ease, color .15s ease;
  display: inline-flex; align-items: center; gap: 6px;
  white-space: nowrap;
}
.seg button:hover:not([aria-pressed="true"]) { color: var(--ink); }
.seg button[aria-pressed="true"] { background: var(--ink); color: #fff; }

.lang-toggle { /* legacy alias */ }
.lang-toggle, .juris-tabs, .doc-tabs { /* share .seg via class */ }

/* ─────────── BUTTONS ─────────── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 16px; border-radius: var(--radius-pill); font-weight: 500;
  border: 1px solid transparent; font-size: 14px;
  transition: transform .12s ease, background .15s ease, color .15s ease, border-color .15s ease, box-shadow .15s ease;
  white-space: nowrap; cursor: pointer;
}
.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.btn-primary { background: var(--ink); color: #fff; }
.btn-primary:hover:not(:disabled) { background: #232323; }
.btn-ghost { color: var(--ink); border-color: var(--line); background: #fff; }
.btn-ghost:hover:not(:disabled) { border-color: #c9c9d0; }
.btn-lg { padding: 13px 22px; font-size: 15px; }

/* ─────────── KICKER (section eyebrow) ─────────── */
.kicker {
  font-family: var(--font-mono); font-size: 11.5px;
  color: var(--mute); letter-spacing: 0.08em; text-transform: uppercase;
  display: inline-flex; align-items: center; gap: 8px;
  padding: 5px 12px; border: 1px solid var(--line); border-radius: var(--radius-pill);
  background: #fff;
}

/* ─────────── FOOTER ─────────── */
footer.foot {
  border-top: 1px solid var(--line); padding: 32px 0 44px;
  font-size: 13px; color: var(--mute);
}
.foot-row { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; align-items: center; }
.foot-left { display: flex; align-items: center; gap: 14px; }
.foot-left .logo-mark { width: 24px; height: 24px; }
.foot-left .logo-mark svg { width: 14px; height: 14px; }
.foot-links { display: flex; gap: 22px; flex-wrap: wrap; }
.foot-links a { transition: color .15s ease; }
.foot-links a:hover { color: var(--ink); }

/* ─────────── MODAL (purchase + payment-waiting) ─────────── */
.modal-overlay {
  display: none; position: fixed; inset: 0; z-index: 100;
  background: rgba(15, 15, 15, .45);
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  align-items: center; justify-content: center;
  padding: 20px;
  animation: modalFadeIn .15s ease;
}
.modal-overlay.active { display: flex; }
@keyframes modalFadeIn { from { opacity: 0; } to { opacity: 1; } }

.modal-card {
  background: #fff; border-radius: 22px;
  padding: 30px 28px 26px;
  max-width: 440px; width: 100%;
  position: relative;
  box-shadow: 0 30px 80px -20px rgba(15, 15, 15, 0.25);
  animation: modalSlideIn .2s ease;
}
@keyframes modalSlideIn {
  from { opacity: 0; transform: translateY(8px) scale(0.985); }
  to   { opacity: 1; transform: none; }
}
.modal-close {
  position: absolute; top: 14px; right: 14px;
  width: 32px; height: 32px; border-radius: 50%;
  display: grid; place-items: center;
  color: var(--mute); cursor: pointer;
  transition: background .15s ease, color .15s ease;
}
.modal-close:hover { background: var(--tint-2); color: var(--ink); }
.modal-close svg { width: 16px; height: 16px; }

.modal-card h3 {
  margin: 0 0 18px;
  font-size: 20px; font-weight: 600; letter-spacing: -0.015em;
}

.modal-pkg-info {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 16px; background: var(--tint-2); border-radius: 12px;
  margin-bottom: 18px;
}
.modal-tokens { font-weight: 500; font-size: 15px; }
.modal-price {
  font-size: 18px; font-weight: 700; letter-spacing: -0.015em;
  font-family: var(--font-mono);
}

.modal-label {
  display: block; font-size: 13px; color: var(--mute);
  margin-bottom: 6px; font-weight: 500;
}
.modal-input {
  width: 100%; padding: 12px 14px;
  border: 1px solid var(--line); border-radius: var(--radius-input);
  font-size: 15px; outline: none;
  font-family: inherit;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.modal-input:focus { border-color: var(--ink); box-shadow: 0 0 0 3px rgba(15, 15, 15, 0.06); }

.modal-submit { width: 100%; margin-top: 14px; justify-content: center; }
.modal-status {
  margin-top: 12px; font-size: 13px; text-align: center; min-height: 18px;
}
.modal-status.error { color: var(--red); }
.modal-status.success { color: var(--green); }
.modal-unavailable { color: var(--mute); font-size: 15px; margin: 0; }

/* ─────────── PAYMENT WAITING ─────────── */
.pay-wait { display: flex; flex-direction: column; align-items: center; text-align: center; }

/* Spinner ring with countdown inside */
.pay-ring {
  position: relative;
  width: 140px; height: 140px;
  margin: 4px 0 22px;
}
.pay-ring svg {
  width: 100%; height: 100%;
  transform: rotate(-90deg);
  overflow: visible;
}
.pay-ring .track { fill: none; stroke: var(--line-2); stroke-width: 6; }
.pay-ring .arc {
  fill: none; stroke: var(--ink); stroke-width: 6;
  stroke-linecap: round;
  /* dasharray + offset are controlled by JS for accurate countdown */
  transition: stroke-dashoffset .9s linear, stroke .25s ease;
}
/* indeterminate "spin" state (when countdown is not yet bound) */
.pay-ring.spin .arc {
  stroke-dasharray: 80 320;
  animation: payArcSpin 1.4s linear infinite;
  transition: none;
}
@keyframes payArcSpin {
  from { stroke-dashoffset: 0; }
  to   { stroke-dashoffset: -400; }
}
.pay-ring .clock {
  position: absolute; inset: 0;
  display: grid; place-items: center; line-height: 1;
  transition: opacity .2s ease;
}
.pay-ring .clock-time {
  font-family: var(--font-mono);
  font-size: 28px; font-weight: 500; letter-spacing: -0.02em;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.pay-ring .clock-label {
  font-size: 10.5px; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--mute); margin-top: 6px;
}
.pay-ring.warn .arc { stroke: var(--amber); }
.pay-ring.warn .clock-time { color: var(--amber); }
.pay-ring.success .arc { stroke: var(--green); }
.pay-ring.error .arc, .pay-ring.expired .arc { stroke: var(--red); }
.pay-ring .glyph {
  position: absolute; inset: 0;
  display: grid; place-items: center;
  opacity: 0; transition: opacity .25s ease;
  pointer-events: none;
}
.pay-ring .glyph svg { width: 48px; height: 48px; transform: none; }
.pay-ring.success .clock,
.pay-ring.expired .clock,
.pay-ring.error .clock { opacity: 0; }
.pay-ring.success .glyph-success { opacity: 1; }
.pay-ring.expired .glyph-expired { opacity: 1; }
.pay-ring.error .glyph-error { opacity: 1; }

.pay-title {
  font-size: 19px; font-weight: 600; letter-spacing: -0.015em;
  margin: 0 0 4px;
}
.pay-subtitle {
  color: var(--mute); font-size: 14px; margin: 0 0 22px;
  max-width: 36ch;
}

.pay-meta {
  width: 100%;
  border: 1px solid var(--line); border-radius: 14px;
  padding: 14px 16px;
  display: grid; gap: 10px;
  margin-bottom: 16px;
  text-align: left;
  background: var(--tint);
}
.pay-meta-row {
  display: flex; justify-content: space-between; align-items: baseline;
  font-size: 13.5px;
  gap: 12px;
}
.pay-meta-key { color: var(--mute); flex-shrink: 0; }
.pay-meta-val { color: var(--ink); font-weight: 500; text-align: right; word-break: break-all; }
.pay-meta-val.mono {
  font-family: var(--font-mono);
  font-size: 13px;
  word-break: break-all;
}

.pay-status {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 12px; border-radius: var(--radius-pill);
  background: var(--tint-2);
  font-size: 12.5px; color: var(--ink-2);
  margin-bottom: 16px;
}
.pay-status .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--amber);
  animation: payDotPulse 1.6s ease-in-out infinite;
}
.pay-status.success { background: var(--green-tint); color: var(--green-ink); }
.pay-status.success .dot { background: var(--green); animation: none; }
.pay-status.error,
.pay-status.expired { background: var(--red-tint); color: var(--red); }
.pay-status.error .dot,
.pay-status.expired .dot { background: var(--red); animation: none; }
@keyframes payDotPulse {
  0%, 100% { opacity: 0.4; transform: scale(1); }
  50%      { opacity: 1;   transform: scale(1.3); }
}

.pay-actions { width: 100%; display: grid; gap: 8px; }
.pay-actions .btn { width: 100%; justify-content: center; }
.pay-cancel {
  margin-top: 4px;
  background: none; color: var(--mute);
  font-size: 13px; padding: 6px 8px;
  text-align: center;
  width: 100%;
}
.pay-cancel:hover { color: var(--ink); }

/* ─────────── LOADING SKELETONS ─────────── */
.sk {
  position: relative; overflow: hidden;
  background: var(--line-2); border-radius: 8px;
  display: block;
}
.sk::after {
  content: ""; position: absolute; inset: 0;
  transform: translateX(-100%);
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.72), transparent);
  animation: skShimmer 1.3s ease-in-out infinite;
}
@keyframes skShimmer { 100% { transform: translateX(100%); } }

.package--skeleton { pointer-events: none; }
.package--skeleton .sk-amt   { height: 30px; width: 70%; border-radius: 6px; }
.package--skeleton .sk-price { height: 16px; width: 50%; margin-top: 4px; }
.package--skeleton .sk-btn   { height: 38px; width: 100%; border-radius: var(--radius-pill); }
.sk-row { height: 13px; width: 60%; border-radius: 5px; }
.models-table td .sk-row { display: inline-block; }

/* small inline spinner (retry button, etc.) */
.spinner-sm {
  width: 14px; height: 14px; border-radius: 50%;
  border: 2px solid currentColor; border-right-color: transparent;
  display: inline-block; animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ─────────── API-UNAVAILABLE BLOCK ─────────── */
.api-down {
  grid-column: 1 / -1;
  border: 1px dashed var(--line); border-radius: var(--radius-card);
  background: var(--tint);
  padding: 44px 28px; text-align: center;
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  animation: fadeUp .3s ease;
}
@keyframes fadeUp { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.api-down-icon {
  width: 44px; height: 44px; border-radius: 50%;
  display: grid; place-items: center; margin-bottom: 8px;
  background: var(--amber-tint); color: var(--amber);
}
.api-down-icon svg { width: 22px; height: 22px; }
.api-down-title { font-size: 17px; font-weight: 600; letter-spacing: -0.01em; color: var(--ink); margin: 0; }
.api-down-sub { font-size: 14px; color: var(--mute); margin: 0; max-width: 46ch; line-height: 1.55; }
.api-retry { margin-top: 14px; }
.api-retry svg { width: 15px; height: 15px; }
.api-retry:disabled { opacity: 0.7; }

.models-down {
  text-align: center; color: var(--mute); font-size: 14.5px;
  border: 1px dashed var(--line); border-radius: var(--radius-card);
  padding: 22px 18px; margin: 0;
  animation: fadeUp .3s ease;
}

@media (prefers-reduced-motion: reduce) {
  .sk::after { animation: none; }
  .spinner-sm { animation-duration: 1.4s; }
  .api-down, .models-down { animation: none; }
  .pay-ring.spin .arc { animation: none; stroke-dasharray: 60 400; }
  .pay-status .dot { animation: none; }
  .modal-overlay { animation: none; }
  .modal-card { animation: none; }
}

/* ─────────── responsive: mobile ─────────── */
@media (max-width: 720px) {
  :root { --pad: 18px; }
  .nav-row { gap: 10px; height: 58px; }
  .nav-links { display: none; }
  .nav-right { gap: 6px; }
  .seg button { padding: 4px 8px; font-size: 11px; }
  .logo-name { font-size: 15px; }
  .logo-mark { width: 26px; height: 26px; }
  .logo-mark svg { width: 14px; height: 14px; }
  .foot-row { flex-direction: column; align-items: flex-start; gap: 16px; text-align: left; }
  .foot-links { flex-wrap: wrap; gap: 14px 18px; }
  .modal-card { padding: 26px 22px 22px; }
  .pay-ring { width: 124px; height: 124px; }
  .pay-ring .clock-time { font-size: 24px; }
}
@media (max-width: 380px) {
  :root { --pad: 14px; }
  .nav .btn-ghost { display: none; }
  .seg button { padding: 3px 7px; }
}