/* Beginner usage onboarding shared by the landing pages and full guides. */

.usage-mode-section {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 78% 14%, rgba(103,217,163,.09), transparent 31%),
    radial-gradient(circle at 14% 82%, rgba(155,104,255,.11), transparent 36%),
    var(--surface);
}
.usage-mode-section::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .18;
  background-image:
    linear-gradient(rgba(255,255,255,.018) 1px, transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.018) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom,transparent,black 22%,black 80%,transparent);
}
.usage-mode-section .container { position: relative; }
.usage-mode-grid {
  display: grid;
  grid-template-columns: repeat(3,minmax(0,1fr));
  gap: 15px;
  margin-top: 38px;
}
.usage-mode-card {
  position: relative;
  display: flex;
  min-height: 330px;
  flex-direction: column;
  padding: 25px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.105);
  border-radius: 18px;
  background: linear-gradient(155deg,rgba(255,255,255,.048),rgba(255,255,255,.017));
  box-shadow: 0 20px 54px rgba(0,0,0,.2);
}
.usage-mode-card::after {
  content: "";
  position: absolute;
  inset: auto -25% -48% 25%;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle,rgba(155,104,255,.12),transparent 68%);
  pointer-events: none;
}
.usage-mode-card.system-audio {
  border-color: rgba(103,217,163,.25);
  background: linear-gradient(155deg,rgba(44,150,116,.12),rgba(255,255,255,.018));
}
.usage-mode-card.system-audio::after {
  background: radial-gradient(circle,rgba(103,217,163,.16),transparent 68%);
}
.usage-mode-kicker {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  color: var(--violet-2);
  font-size: .66rem;
  font-weight: 800;
  letter-spacing: .11em;
  text-transform: uppercase;
}
.system-audio .usage-mode-kicker { color: #8ee7bd; }
.usage-mode-kicker span:last-child {
  padding: 5px 8px;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 999px;
  color: #bcb4c4;
  background: rgba(0,0,0,.13);
  font-size: .58rem;
  letter-spacing: .06em;
}
.usage-mode-card h3 {
  margin: 20px 0 10px;
  color: #f7f2fa;
  font-size: 1.28rem;
  line-height: 1.18;
  letter-spacing: -.025em;
}
.usage-mode-card > p {
  margin: 0;
  color: #aaa2b1;
  font-size: .82rem;
  line-height: 1.65;
}
.usage-route {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 7px;
  margin: 21px 0 0;
}
.usage-route span {
  padding: 7px 9px;
  border: 1px solid rgba(255,255,255,.09);
  border-radius: 9px;
  color: #ded7e3;
  background: rgba(0,0,0,.16);
  font-size: .68rem;
  font-weight: 690;
}
.usage-route i {
  color: #8f8795;
  font-style: normal;
  font-size: .72rem;
}
.system-audio .usage-route span {
  border-color: rgba(103,217,163,.17);
}
.usage-mode-card .text-link {
  position: relative;
  z-index: 1;
  align-self: flex-start;
  margin-top: auto;
  padding-top: 24px;
  font-weight: 750;
}
.usage-mode-note {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 13px;
  align-items: center;
  margin-top: 18px;
  padding: 16px 18px;
  border: 1px solid rgba(103,217,163,.18);
  border-radius: 14px;
  background: rgba(18,78,61,.13);
}
.usage-mode-note strong {
  color: #99ebc4;
  font-size: .72rem;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.usage-mode-note span {
  color: #b8b0bd;
  font-size: .77rem;
  line-height: 1.55;
}
.usage-mode-note a {
  white-space: nowrap;
  color: #d8c7ff;
  font-size: .75rem;
  font-weight: 760;
  text-decoration: none;
}

/* Full guide pages */
.guide-page { background: var(--bg); }
.guide-page .nav { position: sticky; }
.guide-page .language-switch a {
  min-width: 33px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  color: #a199a9;
  text-decoration: none;
  font-size: .66rem;
  font-weight: 760;
}
.guide-page .language-switch a[aria-current="page"] {
  color: #fff;
  background: linear-gradient(135deg,var(--violet-deep),var(--violet));
}
.guide-hero {
  position: relative;
  overflow: hidden;
  padding: 76px 0 62px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 16% 16%,rgba(140,81,255,.24),transparent 34%),
    radial-gradient(circle at 85% 54%,rgba(55,175,136,.13),transparent 30%),
    linear-gradient(180deg,#0d0b12,#111018);
}
.guide-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .2;
  background-image:
    linear-gradient(rgba(255,255,255,.02) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.02) 1px,transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom,black,transparent);
}
.guide-hero .container { position: relative; }
.guide-hero-copy { max-width: 820px; }
.guide-hero h1 {
  max-width: 800px;
  margin: 16px 0 0;
  font-size: clamp(2.5rem,5.2vw,4.75rem);
  line-height: 1.02;
  letter-spacing: -.045em;
}
.guide-hero .lead { max-width: 760px; }
.guide-choice-grid {
  display: grid;
  grid-template-columns: repeat(3,minmax(0,1fr));
  gap: 13px;
  margin-top: 34px;
}
.guide-choice {
  display: block;
  padding: 18px;
  border: 1px solid rgba(255,255,255,.11);
  border-radius: 15px;
  color: inherit;
  background: rgba(255,255,255,.03);
  text-decoration: none;
  transition: transform .16s ease,border-color .16s ease,background .16s ease;
}
.guide-choice:hover,
.guide-choice:focus-visible {
  transform: translateY(-2px);
  border-color: rgba(190,153,255,.38);
  background: rgba(255,255,255,.045);
}
.guide-choice strong { display: block; font-size: .86rem; }
.guide-choice span { display: block; margin-top: 7px; color: #9f97a5; font-size: .72rem; line-height: 1.5; }
.guide-choice.system { border-color: rgba(103,217,163,.24); }
.guide-toc {
  position: sticky;
  top: 66px;
  z-index: 25;
  border-bottom: 1px solid var(--line);
  background: rgba(10,9,13,.92);
  backdrop-filter: blur(15px);
}
.guide-toc .container {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 52px;
  overflow-x: auto;
  scrollbar-width: none;
}
.guide-toc .container::-webkit-scrollbar { display: none; }
.guide-toc a {
  flex: 0 0 auto;
  padding: 8px 11px;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 999px;
  color: #b9b1c0;
  text-decoration: none;
  font-size: .69rem;
}
.guide-toc a:hover,
.guide-toc a:focus-visible {
  color: #fff;
  border-color: rgba(190,153,255,.35);
}
.guide-section {
  scroll-margin-top: 125px;
  padding: 78px 0;
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}
.guide-section.alt { background: var(--surface-2); }
.guide-section-grid {
  display: grid;
  grid-template-columns: minmax(0,.78fr) minmax(0,1.22fr);
  gap: clamp(34px,6vw,78px);
  align-items: start;
}
.guide-copy {
  position: sticky;
  top: 138px;
}
.guide-copy h2 {
  margin: 13px 0 0;
  font-size: clamp(2rem,3.6vw,3.25rem);
  line-height: 1.07;
  letter-spacing: -.038em;
}
.guide-copy p {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: .91rem;
  line-height: 1.72;
}
.guide-copy .button { margin-top: 22px; }
.guide-steps { display: grid; gap: 12px; }
.guide-step {
  display: grid;
  grid-template-columns: 42px minmax(0,1fr);
  gap: 15px;
  padding: 20px;
  border: 1px solid rgba(255,255,255,.09);
  border-radius: 15px;
  background: linear-gradient(145deg,rgba(255,255,255,.042),rgba(255,255,255,.014));
}
.guide-step > span {
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(187,145,255,.26);
  border-radius: 12px;
  color: #d9c1ff;
  background: rgba(114,58,220,.12);
  font-size: .7rem;
  font-weight: 820;
}
.guide-step h3 { margin: 2px 0 0; font-size: .95rem; }
.guide-step p { margin: 7px 0 0; color: #aaa2b1; font-size: .79rem; line-height: 1.58; }
.route-diagram {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1.12fr auto 1fr;
  gap: 8px;
  align-items: stretch;
  margin: 0 0 18px;
  padding: 18px;
  border: 1px solid rgba(103,217,163,.2);
  border-radius: 17px;
  background: linear-gradient(135deg,rgba(43,143,111,.12),rgba(255,255,255,.018));
}
.route-node {
  display: flex;
  min-height: 92px;
  flex-direction: column;
  justify-content: center;
  padding: 13px;
  border: 1px solid rgba(255,255,255,.09);
  border-radius: 12px;
  background: rgba(0,0,0,.17);
  text-align: center;
}
.route-node strong { font-size: .75rem; line-height: 1.35; }
.route-node span { margin-top: 6px; color: #968e9d; font-size: .64rem; line-height: 1.4; }
.route-arrow { align-self: center; color: #76dca9; font-size: 1rem; }
.guide-callout {
  margin-top: 16px;
  padding: 17px 18px;
  border-left: 3px solid var(--green);
  border-radius: 0 12px 12px 0;
  color: #bcb4c2;
  background: rgba(103,217,163,.07);
  font-size: .79rem;
  line-height: 1.62;
}
.guide-callout strong { color: #9ce9c3; }
.guide-callout.warning {
  border-left-color: var(--amber);
  background: rgba(240,190,98,.065);
}
.guide-callout.warning strong { color: #f0cc87; }
.guide-settings {
  display: grid;
  grid-template-columns: repeat(2,minmax(0,1fr));
  gap: 10px;
  margin-top: 16px;
}
.guide-setting {
  padding: 15px;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 12px;
  background: rgba(0,0,0,.12);
}
.guide-setting strong { display: block; color: #e9e2ed; font-size: .73rem; }
.guide-setting span { display: block; margin-top: 5px; color: #9c94a2; font-size: .7rem; line-height: 1.45; }
.troubleshooting-grid {
  display: grid;
  grid-template-columns: repeat(2,minmax(0,1fr));
  gap: 12px;
  margin-top: 34px;
}
.troubleshooting-grid details {
  padding: 0 18px;
  border: 1px solid rgba(255,255,255,.09);
  border-radius: 14px;
  background: rgba(255,255,255,.022);
}
.troubleshooting-grid summary {
  padding: 17px 0;
  cursor: pointer;
  color: #eee8f1;
  font-size: .8rem;
  font-weight: 720;
}
.troubleshooting-grid p {
  margin: 0;
  padding: 0 0 18px;
  color: #a49ca9;
  font-size: .76rem;
  line-height: 1.62;
}
.guide-final {
  padding: 70px 0;
  background:
    radial-gradient(circle at 88% 50%,rgba(103,217,163,.1),transparent 30%),
    var(--surface-2);
}
.guide-final-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  padding: clamp(25px,4vw,40px);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 20px;
  background: linear-gradient(135deg,rgba(255,255,255,.05),rgba(255,255,255,.018));
}
.guide-final-card h2 { margin: 10px 0 0; font-size: clamp(1.7rem,3vw,2.5rem); letter-spacing: -.035em; }
.guide-final-card p { margin: 12px 0 0; color: #a9a1af; font-size: .84rem; line-height: 1.6; }
.guide-final-card .actions { margin: 0; flex: 0 0 auto; }
.third-party-note {
  margin-top: 18px;
  color: #837b89;
  font-size: .67rem;
  line-height: 1.55;
}

@media (max-width: 920px) {
  .usage-mode-grid,
  .guide-choice-grid { grid-template-columns: 1fr; }
  .usage-mode-card { min-height: 0; }
  .guide-section-grid { grid-template-columns: 1fr; }
  .guide-copy { position: static; }
  .route-diagram {
    grid-template-columns: 1fr;
  }
  .route-arrow { transform: rotate(90deg); justify-self: center; }
  .guide-final-card { align-items: flex-start; flex-direction: column; }
}
@media (max-width: 640px) {
  .usage-mode-card { padding: 21px; border-radius: 15px; }
  .usage-mode-note { grid-template-columns: 1fr; }
  .usage-mode-note a { white-space: normal; }
  .guide-hero { padding: 58px 0 48px; }
  .guide-hero h1 { font-size: clamp(2.25rem,11vw,3.2rem); }
  .guide-section { padding: 60px 0; }
  .guide-step { grid-template-columns: 36px minmax(0,1fr); padding: 17px; }
  .guide-step > span { width: 36px; height: 36px; border-radius: 10px; }
  .guide-settings,
  .troubleshooting-grid { grid-template-columns: 1fr; }
  .guide-toc { top: 62px; }
}
@media (prefers-reduced-motion: reduce) {
  .guide-choice { transition: none; }
}