/* ===== Reset & base ===== */
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: Roboto, Inter, system-ui, sans-serif; color: #0f172a; background: #fff; }
a { text-decoration: none; color: inherit; }
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 32px; }

/* ===== Buttons ===== */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border-radius: 10px; font-weight: 600; cursor: pointer; border: 0; font-size: 15px; padding: 14px 26px; font-family: inherit; transition: .2s; }
.btn-blue { background: #3f8cff; color: #fff; }
.btn-blue:hover { background: #2f7cf0; }
.btn-outline { background: #fff; color: #1e3a8a; border: 1.5px solid #cbd5e1; }
.btn-white { background: #fff; color: #1d3fa6; }
.btn-white:hover { background: #eef4ff; }

/* ===== Announcement bar ===== */
.topbar { background: #3b5bdb; color: #fff; display: flex; align-items: center; justify-content: center; gap: 16px; padding: 12px 60px; font-size: 15px; position: relative; }
.topbar b { font-weight: 700; }
.topbar .lm { background: #fff; color: #3b5bdb; border-radius: 8px; padding: 8px 16px; font-weight: 600; font-size: 14px; }
.topbar .x { position: absolute; right: 24px; top: 50%; transform: translateY(-50%); font-size: 22px; cursor: pointer; opacity: .9; }

/* ===== Navigation ===== */
.nav { border-bottom: 1px solid #eef2f7; position: relative; z-index: 50; }
.nav .wrap { display: flex; align-items: center; justify-content: space-between; padding-top: 12px; padding-bottom: 12px; }
.nav .right { display: flex; align-items: center; gap: 16px; }

.menu { display: flex; gap: 6px; list-style: none; font-size: 15px; font-weight: 500; }
.menu > li { position: relative; }
.menu > li > a { display: block; padding: 10px 12px; color: #334155; border-radius: 8px; transition: .2s; }
.menu > li > a:hover, .menu > li:hover > a { color: #3f8cff; background: #f1f5ff; }

/* dropdown (shared) */
.dd { position: absolute; top: 100%; left: 0; margin-top: 8px; background: #fff; border: 1px solid #e2e8f0; border-radius: 14px; box-shadow: 0 16px 40px rgba(15,23,42,.12); padding: 10px; min-width: 240px; opacity: 0; visibility: hidden; transform: translateY(6px); transition: .18s; }
.has-dd::after { content: ""; position: absolute; left: 0; right: 0; top: 100%; height: 10px; }
.has-dd:hover .dd { opacity: 1; visibility: visible; transform: translateY(0); }
.dd a { display: flex; align-items: center; gap: 12px; white-space: nowrap; padding: 11px 14px; border-radius: 10px; color: #0f172a; font-weight: 500; transition: .15s; }
.dd a:hover { background: #f1f5ff; color: #3f8cff; }
.dd img { width: 22px; height: 22px; object-fit: contain; flex-shrink: 0; }
.dd .dd-more { margin-top: 6px; border-top: 1px solid #eef2f7; border-radius: 0 0 10px 10px; padding-top: 14px; color: #3f8cff; font-weight: 600; justify-content: space-between; }
.dd .dd-more span { transition: .2s; }
.dd .dd-more:hover span { transform: translateX(4px); }

/* wide 3-column dropdown (Buy Crypto) */
.dd-wide { display: flex; gap: 8px; padding: 14px; min-width: 0; }
.dd-col { display: flex; flex-direction: column; min-width: 200px; }

/* ===== Logo ===== */
.logo { display: flex; align-items: center; }
.logo img { display: block; height: 52px; width: auto; }

/* ===== Generic sections ===== */
.sec { padding: 90px 0 20px; }
.sec h2 { font-size: 40px; font-weight: 800; text-align: center; line-height: 1.2; }
.sec .sub { text-align: center; color: #64748b; font-size: 17px; margin: 16px auto 48px; max-width: 680px; line-height: 1.6; }

/* ===== Desktop hero ===== */
.dhero { background: #f6f8fc; padding: 70px 0; }
.dhero-in { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.dhero h1 { font-size: 48px; font-weight: 800; line-height: 1.1; margin-bottom: 16px; }
.dhero-t > p { font-size: 18px; color: #475569; line-height: 1.6; margin-bottom: 22px; }
.trust { display: flex; align-items: center; gap: 10px; font-size: 15px; color: #475569; margin-bottom: 30px; }
.trust img { height: 22px; }
.dl-title { font-size: 18px; font-weight: 700; margin-bottom: 14px; }
.dl-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.dl { display: flex; align-items: center; gap: 10px; background: #fff; border: 1px solid #e2e8f0; border-radius: 10px; padding: 13px 16px; font-size: 14px; font-weight: 600; color: #0f172a; transition: .2s; }
.dl:hover { border-color: #3f8cff; color: #3f8cff; }
.dl-ic { width: 26px; height: 26px; border-radius: 6px; background: #0f172a; color: #fff; display: flex; align-items: center; justify-content: center; font-size: 13px; flex-shrink: 0; }
.dl-links { display: flex; gap: 24px; margin-top: 18px; font-size: 14px; }
.dl-links a { color: #3f8cff; font-weight: 600; }
.dl-links a:hover { text-decoration: underline; }
.dhero-img img { display: block; width: 100%; height: auto; }

/* ===== Use cases ===== */
.usecases { padding-top: 20px; }
.uc { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; padding: 50px 0; }
.uc.rev .uc-t { order: 2; }
.uc.rev .uc-img { order: 1; }
.uc h2 { text-align: left; font-size: 36px; margin-bottom: 14px; }
.uc p { font-size: 17px; color: #475569; line-height: 1.6; margin-bottom: 24px; }
.uc-list { list-style: none; margin-bottom: 24px; }
.uc-list li { font-size: 17px; color: #475569; padding: 8px 0 8px 30px; position: relative; }
.uc-list li::before { content: "✓"; position: absolute; left: 0; color: #3f8cff; font-weight: 700; }
.uc-img img { display: block; width: 100%; height: auto; border-radius: 20px; }

/* ===== Ultimate Crypto Management ===== */
.ucm-head { text-align: center; max-width: 820px; margin: 0 auto 40px; }
.ucm-head p { font-size: 17px; color: #475569; line-height: 1.6; margin: 16px 0 24px; }
.tabs { display: flex; justify-content: center; gap: 8px; flex-wrap: wrap; margin-bottom: 28px; }
.tab { background: #f6f8fc; border: 1px solid #e2e8f0; border-radius: 999px; padding: 10px 26px; font-size: 15px; font-weight: 600; color: #475569; cursor: pointer; font-family: inherit; transition: .2s; }
.tab:hover { border-color: #3f8cff; color: #3f8cff; }
.tab.on { background: #3f8cff; border-color: #3f8cff; color: #fff; }
.panels { position: relative; }
.panel { display: none; grid-template-columns: 1.2fr 1fr; gap: 40px; align-items: center; background: #f6f8fc; border-radius: 24px; padding: 48px; color: #0f172a; }
.panel.on { display: grid; }
.panel h3 { font-size: 30px; font-weight: 800; margin-bottom: 14px; }
.panel p { font-size: 17px; color: #475569; line-height: 1.6; }
.pay { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 18px; }
.pay img { height: 28px; width: auto; background: #fff; border: 1px solid #e2e8f0; border-radius: 6px; padding: 4px 8px; }
.panel-img { display: block; width: 100%; max-width: 420px; height: auto; margin: 0 auto; }

/* ===== FAQ ===== */
.faq { max-width: 800px; margin: 40px auto 0; }
.q { border-bottom: 1px solid #e2e8f0; }
.q button { width: 100%; background: none; border: 0; text-align: left; padding: 24px 0; font-size: 19px; font-weight: 600; display: flex; justify-content: space-between; align-items: center; cursor: pointer; color: #0f172a; font-family: inherit; }
.q button span { font-size: 26px; color: #3f8cff; transition: .2s; }
.q .a { display: none; padding: 0 0 24px; font-size: 16px; color: #475569; line-height: 1.7; }
.q.open .a { display: block; }
.q.open button span { transform: rotate(45deg); }

/* ===== Footer (white) ===== */
.footer { background: #fff; color: #475569; padding: 70px 0 30px; margin-top: 70px; border-top: 1px solid #e2e8f0; }
.fcols { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr; gap: 32px; font-size: 14px; }
.fcols h5 { color: #0f172a; font-size: 15px; margin-bottom: 16px; font-weight: 700; }
.fcols li { list-style: none; margin-bottom: 10px; cursor: pointer; transition: .2s; }
.fcols li:hover { color: #3f8cff; }
.fcols p { line-height: 1.6; max-width: 280px; }
.fcols .logo { margin-bottom: 16px; }
.fcols .logo img { height: 56px; }
.soc { display: flex; gap: 10px; margin-top: 16px; }
.soc span { width: 34px; height: 34px; border-radius: 50%; background: #f1f5f9; border: 1px solid #e2e8f0; display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 700; color: #0f172a; cursor: pointer; transition: .2s; }
.soc span:hover { background: #3f8cff; border-color: #3f8cff; color: #fff; }
.fbot { border-top: 1px solid #e2e8f0; margin-top: 48px; padding-top: 24px; font-size: 13px; display: flex; justify-content: space-between; color: #94a3b8; flex-wrap: wrap; gap: 8px; }

/* ===== Chat widget ===== */
.chat { position: fixed; right: 28px; bottom: 28px; width: 60px; height: 60px; border-radius: 50%; background: #3f8cff; box-shadow: 0 10px 25px rgba(63,140,255,.5); display: flex; align-items: center; justify-content: center; cursor: pointer; z-index: 99; }

/* ===== Responsive ===== */
@media (max-width: 1000px) {
  .dhero-in { grid-template-columns: 1fr; }
  .uc, .uc.rev { grid-template-columns: 1fr; gap: 28px; }
  .uc.rev .uc-t { order: 1; }
  .uc.rev .uc-img { order: 2; }
  .panel { grid-template-columns: 1fr; padding: 32px; }
  .fcols { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .menu { display: none; }
  .logo img { height: 44px; }
  .sec h2 { font-size: 30px; }
  .dhero h1, .uc h2 { font-size: 32px; }
  .dl-grid { grid-template-columns: 1fr; }
  .topbar { flex-direction: column; padding: 12px 40px; }
}