:root {
  color-scheme: light dark;
  --bg: #f3f8fb;
  --bg-strong: #ffffff;
  --text: #101b22;
  --muted: #5d6f78;
  --line: rgba(16, 27, 34, 0.12);
  --panel: rgba(255, 255, 255, 0.68);
  --panel-strong: rgba(255, 255, 255, 0.92);
  --blue: #1174e6;
  --cyan: #20c6d8;
  --green: #34c77b;
  --orange: #ff9f43;
  --shadow: rgba(20, 48, 62, 0.18);
  --button-shadow: rgba(17, 116, 230, 0.22);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #071116;
    --bg-strong: #0e1a21;
    --text: #f5f9fb;
    --muted: #a9b8c0;
    --line: rgba(226, 246, 255, 0.14);
    --panel: rgba(14, 28, 36, 0.68);
    --panel-strong: rgba(18, 35, 44, 0.9);
    --shadow: rgba(0, 0, 0, 0.48);
    --button-shadow: rgba(17, 116, 230, 0.28);
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 16% -6%, color-mix(in srgb, var(--cyan) 24%, transparent), transparent 34%),
    radial-gradient(circle at 88% 4%, color-mix(in srgb, var(--green) 17%, transparent), transparent 30%),
    linear-gradient(135deg, color-mix(in srgb, var(--bg-strong) 70%, transparent), transparent 44%),
    var(--bg);
}

a {
  color: inherit;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 70px;
  padding: 0 clamp(20px, 5vw, 58px);
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg-strong) 76%, transparent);
  backdrop-filter: blur(24px) saturate(1.18);
  box-shadow: 0 18px 46px rgba(14, 38, 52, 0.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-weight: 780;
  text-decoration: none;
}

.brand img {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  box-shadow: 0 8px 24px color-mix(in srgb, var(--cyan) 22%, transparent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.nav-links a {
  text-decoration: none;
}

.nav-links a:hover {
  color: var(--text);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 40px;
  padding: 0 16px;
  border: 0;
  border-radius: 999px;
  color: white;
  background: linear-gradient(135deg, #1174e6 0%, #18bfd8 58%, #34c77b 100%);
  font-size: 14px;
  font-weight: 780;
  letter-spacing: 0;
  text-decoration: none;
  box-shadow: 0 14px 30px var(--button-shadow), inset 0 1px rgba(255, 255, 255, 0.34);
}

.button span[aria-hidden="true"] {
  font-size: 17px;
  line-height: 1;
  margin-top: -1px;
}

.nav .button {
  min-height: 38px;
  padding: 0 15px 0 13px;
  gap: 7px;
}

.page {
  width: min(100% - 40px, 980px);
  margin: 0 auto;
  padding: clamp(54px, 8vw, 90px) 0;
}

.hero {
  max-width: 760px;
  margin-bottom: 36px;
}

.tips-page {
  width: min(100% - 40px, 1080px);
}

.tips-hero {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(320px, 0.78fr);
  gap: clamp(24px, 5vw, 46px);
  align-items: center;
  margin-bottom: 28px;
}

.tips-hero-copy {
  margin-bottom: 0;
  min-width: 0;
}

.tips-visual {
  margin: 0;
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--panel);
  box-shadow: 0 18px 52px var(--shadow);
}

.tips-visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.kofi-window {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 22px;
  align-items: end;
  margin: 0 0 20px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: color-mix(in srgb, var(--panel) 86%, transparent);
  box-shadow: 0 18px 52px var(--shadow);
  backdrop-filter: blur(18px);
}

.kofi-window p {
  max-width: 680px;
  margin-bottom: 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--blue);
  background: var(--panel);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

h1 {
  margin: 18px 0 14px;
  font-size: clamp(40px, 5.6vw, 64px);
  line-height: 1.04;
  font-weight: 860;
  letter-spacing: 0;
}

h2 {
  margin: 0 0 14px;
  font-size: 28px;
  letter-spacing: 0;
}

h3 {
  margin: 0 0 8px;
  font-size: 19px;
}

p,
li {
  color: var(--muted);
  line-height: 1.62;
  font-size: 17px;
}

.lead {
  font-size: 20px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.panel,
.notice {
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--panel);
  box-shadow: 0 18px 52px var(--shadow);
  backdrop-filter: blur(18px);
}

.panel {
  padding: 24px;
}

.notice {
  padding: 18px 20px;
  margin: 24px 0;
}

.content {
  display: grid;
  gap: 20px;
}

.content section {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: color-mix(in srgb, var(--panel) 78%, transparent);
}

.content ul {
  margin: 12px 0 0;
  padding-left: 22px;
}

.content ol {
  margin: 14px 0 0;
  padding-left: 24px;
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.guide-card {
  display: grid;
  gap: 10px;
  min-height: 190px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: color-mix(in srgb, var(--panel) 82%, transparent);
  text-decoration: none;
  box-shadow: 0 16px 44px color-mix(in srgb, var(--shadow) 72%, transparent);
}

.guide-card:hover {
  border-color: color-mix(in srgb, var(--blue) 42%, var(--line));
}

.guide-card strong {
  color: var(--text);
  font-size: 18px;
}

.guide-card span {
  color: var(--muted);
  line-height: 1.55;
}

.trust-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.trust-list span {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 14px;
  color: var(--text);
  background: var(--panel);
  font-weight: 760;
}

.faq-list {
  display: grid;
  gap: 12px;
  margin-top: 16px;
}

.faq-item {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: color-mix(in srgb, var(--panel) 72%, transparent);
}

.faq-item h3 {
  margin-bottom: 6px;
}

.faq-item p {
  margin: 0;
}

.comparison-table {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.comparison-row {
  display: grid;
  grid-template-columns: minmax(160px, 0.65fr) repeat(2, minmax(0, 1fr));
  gap: 12px;
  align-items: start;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: color-mix(in srgb, var(--panel) 76%, transparent);
}

.comparison-row strong {
  color: var(--text);
}

.comparison-row span {
  color: var(--muted);
  line-height: 1.5;
}

.meta {
  color: var(--muted);
  font-weight: 650;
}

.split-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.button.secondary {
  color: var(--text);
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: none;
}

.facts {
  display: grid;
  gap: 12px;
  margin: 24px 0;
}

.fact-row {
  display: grid;
  grid-template-columns: minmax(160px, 0.45fr) minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: color-mix(in srgb, var(--panel) 72%, transparent);
}

.fact-row strong {
  color: var(--text);
}

.fact-row span,
.fact-row code {
  color: var(--muted);
  line-height: 1.5;
}

code {
  padding: 0.08em 0.35em;
  border: 1px solid var(--line);
  border-radius: 7px;
  color: var(--text);
  background: color-mix(in srgb, var(--panel) 82%, transparent);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.92em;
}

.steps {
  counter-reset: guide-step;
  display: grid;
  gap: 14px;
  margin: 18px 0 0;
}

.step {
  counter-increment: guide-step;
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 16px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: color-mix(in srgb, var(--panel) 78%, transparent);
}

.step::before {
  content: counter(guide-step);
  width: 42px;
  height: 42px;
  display: inline-grid;
  place-items: center;
  border-radius: 50%;
  color: white;
  background: linear-gradient(145deg, var(--blue), var(--cyan));
  font-weight: 850;
}

.step h3 {
  margin-top: 2px;
}

.step p {
  margin: 0;
}

.callout {
  border-left: 4px solid var(--blue);
}

.source-list {
  display: grid;
  gap: 10px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.source-list a {
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
}

.source-list a:hover {
  color: var(--blue);
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: var(--panel);
  font-size: 14px;
  font-weight: 760;
}

footer {
  border-top: 1px solid var(--line);
  padding: 38px clamp(20px, 5vw, 58px);
  background: color-mix(in srgb, var(--bg-strong) 72%, transparent);
}

.footer-inner {
  width: min(100%, 1180px);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 26px;
  color: var(--muted);
}

.footer-inner.footer-simple {
  grid-template-columns: minmax(0, 1fr) auto;
}

.footer-inner strong {
  color: var(--text);
}

.footer-links {
  display: grid;
  gap: 10px;
}

.footer-links a,
.credit a {
  color: var(--text);
  text-decoration: none;
}

.footer-links a:hover,
.credit a:hover {
  color: var(--blue);
}

.credit {
  margin: 12px 0 0;
}

@media (max-width: 760px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
    padding-top: 18px;
    padding-bottom: 18px;
  }

  .nav-links {
    flex-wrap: wrap;
  }

  .grid,
  .guide-grid,
  .trust-list,
  .tips-hero,
  .kofi-window,
  .footer-inner {
    grid-template-columns: 1fr;
  }

  .fact-row,
  .step,
  .comparison-row {
    grid-template-columns: 1fr;
  }

  .tips-visual {
    order: -1;
  }

  h1 {
    font-size: clamp(38px, 11vw, 46px);
  }

  .kofi-window {
    align-items: start;
    padding: 22px;
  }

  .floatingchat-container-wrap-mobi {
    left: max(16px, calc(100vw - 211px)) !important;
    right: auto !important;
    bottom: 84px !important;
  }
}