:root {
    --navy: #0d1b3e;
    --navy-2: #13285a;
    --green: #1f9a55;
    --green-2: #26b866;
    --green-soft: #e8f6ee;
    --gold: #e0a92e;
    --ink: #0d1b3e;
    --muted: #5b6785;
    --line: #e3e8f2;
    --bg: #ffffff;
    --bg-2: #f5f7fb;
    --radius: 16px;
    --shadow: 0 20px 50px -20px rgba(13, 27, 62, .25);
  }
  * { box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body {
    margin: 0;
    font-family: "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
    color: var(--ink);
    background: var(--bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
  }
  img { max-width: 100%; display: block; }
  a { color: inherit; text-decoration: none; }
  .wrap { max-width: 1160px; margin: 0 auto; padding: 0 20px; }

  /* Header */
  header {
    position: sticky; top: 0; z-index: 50;
    background: rgba(255,255,255,.88);
    backdrop-filter: saturate(160%) blur(10px);
    border-bottom: 1px solid transparent;
    transition: border-color .2s;
  }
  header.scrolled { border-color: var(--line); }
  .nav { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 24px; }
  .brand { display: flex; align-items: center; gap: 10px; }
  .brand img.icon { height: 34px; width: auto; }
  .brand img.word { height: 22px; width: auto; }
  .menu { display: flex; gap: 28px; font-size: 15px; font-weight: 500; color: var(--muted); }
  .menu a:hover { color: var(--ink); }
  .nav-cta { display: flex; gap: 10px; align-items: center; }
  .burger { display: none; background: none; border: 0; padding: 8px; cursor: pointer; color: var(--ink); }

  .btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 12px 22px; border-radius: 999px; font-weight: 600; font-size: 15px;
    border: 1.5px solid transparent; cursor: pointer; transition: transform .15s, background .15s, box-shadow .15s;
    white-space: nowrap;
  }
  .btn:hover { transform: translateY(-1px); }
  .btn-primary { background: var(--green); color: #fff; box-shadow: 0 10px 24px -10px rgba(31,154,85,.7); }
  .btn-primary:hover { background: var(--green-2); }
  .btn-ghost { border-color: var(--line); color: var(--ink); background: #fff; }
  .btn-ghost:hover { border-color: var(--navy); }
  .btn-sm { padding: 9px 18px; font-size: 14px; }

  /* Hero */
  .hero { position: relative; overflow: hidden; padding: 72px 0 96px; }
  .hero::before {
    content: ""; position: absolute; inset: -30% -10% auto auto; width: 720px; height: 720px;
    background: radial-gradient(closest-side, rgba(38,184,102,.18), transparent 70%);
    pointer-events: none;
  }
  .hero::after {
    content: ""; position: absolute; inset: auto auto -40% -20%; width: 680px; height: 680px;
    background: radial-gradient(closest-side, rgba(19,40,90,.10), transparent 70%);
    pointer-events: none;
  }
  .hero-grid { position: relative; display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; }
  .pill {
    display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px 6px 6px; border-radius: 999px;
    background: var(--green-soft); color: var(--green); font-size: 13px; font-weight: 600;
  }
  .pill b { background: var(--green); color: #fff; padding: 3px 10px; border-radius: 999px; font-weight: 600; }
  h1 { font-size: clamp(36px, 5vw, 58px); line-height: 1.08; letter-spacing: -.02em; margin: 20px 0 18px; font-weight: 800; }
  h1 em { font-style: normal; color: var(--green); }
  .lead { font-size: 19px; color: var(--muted); max-width: 540px; margin: 0 0 32px; }
  .hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
  .trust { display: flex; gap: 22px; flex-wrap: wrap; margin-top: 36px; font-size: 14px; color: var(--muted); }
  .trust span { display: inline-flex; align-items: center; gap: 8px; }
  .trust svg { color: var(--green); flex: none; }

  /* Mock app */
  .mock {
    background: #fff; border: 1px solid var(--line); border-radius: 20px; box-shadow: var(--shadow);
    overflow: hidden; transform: perspective(1400px) rotateY(-6deg) rotateX(2deg);
  }
  .mock-bar { display: flex; align-items: center; gap: 6px; padding: 12px 16px; background: var(--bg-2); border-bottom: 1px solid var(--line); }
  .mock-bar i { width: 10px; height: 10px; border-radius: 50%; background: #d5dbe8; display: block; }
  .mock-bar small { margin-left: 12px; color: var(--muted); font-size: 12px; }
  .mock-body { padding: 20px; display: grid; gap: 14px; }
  .kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
  .kpi { border: 1px solid var(--line); border-radius: 12px; padding: 12px; }
  .kpi small { color: var(--muted); font-size: 11px; display: block; }
  .kpi strong { font-size: 17px; display: block; margin-top: 2px; }
  .kpi .up { color: var(--green); font-size: 11px; font-weight: 600; }
  .kpi .warn { color: #c2410c; font-size: 11px; font-weight: 600; }
  .chart { border: 1px solid var(--line); border-radius: 12px; padding: 14px; }
  .chart-head { display: flex; justify-content: space-between; font-size: 12px; color: var(--muted); margin-bottom: 10px; }
  .bars { display: flex; align-items: flex-end; gap: 8px; height: 90px; }
  .bars div { flex: 1; border-radius: 6px 6px 2px 2px; background: linear-gradient(180deg, var(--green-2), var(--green)); }
  .bars div.n { background: linear-gradient(180deg, #2c4787, var(--navy-2)); }
  .rows { border: 1px solid var(--line); border-radius: 12px; overflow: hidden; font-size: 12.5px; }
  .row { display: grid; grid-template-columns: 1.4fr .8fr .9fr .8fr; gap: 8px; padding: 9px 12px; border-top: 1px solid var(--line); align-items: center; }
  .row:first-child { border-top: 0; background: var(--bg-2); color: var(--muted); font-weight: 600; font-size: 11px; text-transform: uppercase; letter-spacing: .04em; }
  .row .cur { font-weight: 600; }
  .tag { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 11px; font-weight: 600; }
  .tag.ok { background: var(--green-soft); color: var(--green); }
  .tag.wait { background: #fff4e0; color: #b7791f; }
  .tag.gib { background: #e8eefc; color: var(--navy-2); }
  .float {
    position: absolute; background: #fff; border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow);
    padding: 12px 14px; font-size: 13px; display: flex; gap: 10px; align-items: center;
  }
  .float .ic { width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; background: var(--green-soft); color: var(--green); flex: none; }
  .float small { display: block; color: var(--muted); font-size: 11.5px; }
  .f1 { left: -28px; bottom: 34px; }
  .f2 { right: -18px; top: -26px; }
  .mock-wrap { position: relative; }

  /* Sections */
  section { padding: 96px 0; }
  .eyebrow { color: var(--green); font-weight: 700; font-size: 13px; letter-spacing: .12em; text-transform: uppercase; }
  h2 { font-size: clamp(28px, 3.6vw, 42px); line-height: 1.15; letter-spacing: -.02em; margin: 10px 0 14px; font-weight: 800; }
  .sec-head { max-width: 680px; margin: 0 auto 56px; text-align: center; }
  .sec-head p { color: var(--muted); font-size: 17px; margin: 0; }

  .features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
  .card {
    background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px;
    transition: transform .2s, box-shadow .2s, border-color .2s;
  }
  .card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: transparent; }
  .card .ic {
    width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center;
    background: var(--green-soft); color: var(--green); margin-bottom: 18px;
  }
  .card .ic.n { background: #e8eefc; color: var(--navy-2); }
  .card h3 { margin: 0 0 8px; font-size: 19px; }
  .card p { margin: 0; color: var(--muted); font-size: 15px; }

  /* Flow */
  .flow-sec { background: var(--bg-2); }
  .flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: step; position: relative; }
  .step { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; position: relative; }
  .step::before {
    counter-increment: step; content: counter(step);
    width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center;
    background: var(--navy); color: #fff; font-weight: 700; font-size: 15px; margin-bottom: 16px;
  }
  .step h3 { margin: 0 0 6px; font-size: 17px; }
  .step p { margin: 0; color: var(--muted); font-size: 14.5px; }

  /* Split / currency */
  .split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
  .checks { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 14px; }
  .checks li { display: flex; gap: 12px; color: var(--muted); }
  .checks li b { color: var(--ink); }
  .checks svg { flex: none; color: var(--green); margin-top: 3px; }
  .fx {
    background: linear-gradient(160deg, var(--navy) 0%, var(--navy-2) 100%); color: #fff;
    border-radius: 24px; padding: 32px; box-shadow: var(--shadow); position: relative; overflow: hidden;
  }
  .fx::after {
    content: ""; position: absolute; right: -120px; top: -120px; width: 300px; height: 300px;
    background: radial-gradient(closest-side, rgba(38,184,102,.35), transparent); pointer-events: none;
  }
  .fx h4 { margin: 0 0 4px; font-size: 14px; color: #a9b6d6; font-weight: 600; }
  .fx-total { font-size: 34px; font-weight: 800; margin-bottom: 22px; }
  .fx-total small { font-size: 15px; color: var(--green-2); font-weight: 600; margin-left: 8px; }
  .fx-row { display: grid; grid-template-columns: auto 1fr auto; gap: 14px; align-items: center; padding: 14px 0; border-top: 1px solid rgba(255,255,255,.1); font-size: 15px; }
  .fx-row .c { width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center; background: rgba(255,255,255,.08); font-weight: 700; }
  .fx-row small { display: block; color: #a9b6d6; font-size: 12.5px; }
  .fx-row .r { text-align: right; font-weight: 600; }
  .fx-note { margin-top: 18px; font-size: 13px; color: #a9b6d6; display: flex; gap: 8px; align-items: center; }

  /* e-Arşiv band */
  .earsiv { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
  .timeline { display: grid; gap: 0; }
  .tl { display: grid; grid-template-columns: 40px 1fr; gap: 16px; padding-bottom: 22px; position: relative; }
  .tl:not(:last-child)::after { content: ""; position: absolute; left: 19px; top: 40px; bottom: 0; width: 2px; background: var(--line); }
  .tl .dot { width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; background: var(--green-soft); color: var(--green); }
  .tl h4 { margin: 6px 0 2px; font-size: 16px; }
  .tl p { margin: 0; color: var(--muted); font-size: 14.5px; }

  /* Audience */
  .aud { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
  .aud div { border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; text-align: center; }
  .aud strong { display: block; margin: 10px 0 4px; }
  .aud span { color: var(--muted); font-size: 14px; }
  .aud .emoji { font-size: 28px; }

  /* FAQ */
  .faq { max-width: 780px; margin: 0 auto; display: grid; gap: 12px; }
  details { border: 1px solid var(--line); border-radius: 14px; padding: 18px 22px; background: #fff; }
  details[open] { box-shadow: 0 10px 30px -18px rgba(13,27,62,.3); }
  summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
  summary::-webkit-details-marker { display: none; }
  summary::after { content: "+"; font-size: 22px; line-height: 1; color: var(--green); transition: transform .2s; }
  details[open] summary::after { transform: rotate(45deg); }
  details p { color: var(--muted); margin: 12px 0 0; }

  /* CTA */
  .cta {
    background: linear-gradient(135deg, var(--navy) 0%, #183a7a 55%, var(--green) 140%);
    color: #fff; border-radius: 28px; padding: 64px 48px; text-align: center; position: relative; overflow: hidden;
  }
  .cta h2 { color: #fff; margin-top: 0; }
  .cta p { color: #c7d2ec; max-width: 560px; margin: 0 auto 30px; font-size: 17px; }
  .cta .btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.35); }
  .cta .btn-ghost:hover { border-color: #fff; }

  footer { padding: 48px 0 40px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
  .foot { display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap; }
  .foot nav { display: flex; gap: 22px; flex-wrap: wrap; }
  .foot a:hover { color: var(--ink); }

  .reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
  .reveal.in { opacity: 1; transform: none; }
  @media (prefers-reduced-motion: reduce) {
    .reveal { opacity: 1; transform: none; transition: none; }
    html { scroll-behavior: auto; }
  }

  /* Responsive */
  @media (max-width: 1000px) {
    .hero-grid, .split, .earsiv { grid-template-columns: 1fr; gap: 48px; }
    .features { grid-template-columns: repeat(2, 1fr); }
    .flow { grid-template-columns: repeat(2, 1fr); }
    .aud { grid-template-columns: repeat(2, 1fr); }
    .mock { transform: none; }
    .f1 { left: 8px; } .f2 { right: 8px; }
  }
  @media (max-width: 760px) {
    .menu, .nav-cta .btn-ghost { display: none; }
    .burger { display: block; }
    .menu.open {
      display: flex; flex-direction: column; position: absolute; top: 72px; left: 0; right: 0;
      background: #fff; padding: 16px 20px 24px; gap: 16px; border-bottom: 1px solid var(--line);
    }
    .brand img.word { display: none; }
    section { padding: 72px 0; }
    .hero { padding: 40px 0 72px; }
    .features, .flow, .aud { grid-template-columns: 1fr; }
    .kpis { grid-template-columns: 1fr 1fr; }
    .kpis .kpi:last-child { display: none; }
    .row { grid-template-columns: 1.3fr .9fr .8fr; }
    .row > :nth-child(2) { display: none; }
    .float { display: none; }
    .cta { padding: 48px 22px; border-radius: 22px; }
  }

  /* Article / info pages */
  .page-hero { padding: 56px 0 48px; border-bottom: 1px solid var(--line); background: var(--bg-2); }
  .page-hero .wrap { max-width: 820px; }
  .page-hero h1 { font-size: clamp(30px, 4.2vw, 46px); margin: 14px 0 16px; }
  .page-hero .lead { max-width: 680px; margin: 0; }
  .breadcrumb { font-size: 13px; color: var(--muted); margin-bottom: 14px; }
  .breadcrumb a:hover { color: var(--ink); }
  .breadcrumb span { margin: 0 6px; }
  .content { padding: 64px 0; }
  .content .wrap { max-width: 820px; }
  .content h2 { font-size: clamp(22px, 2.8vw, 30px); margin: 44px 0 14px; }
  .content > .wrap > h2:first-child { margin-top: 0; }
  .content p { color: var(--muted); font-size: 16.5px; margin: 0 0 16px; }
  .content ul, .content ol { color: var(--muted); font-size: 16.5px; padding-left: 22px; display: grid; gap: 10px; margin: 0 0 20px; }
  .content li { line-height: 1.6; }
  .content .card-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin: 20px 0 28px; }
  @media (max-width: 760px) {
    .page-hero { padding: 40px 0 36px; }
    .content { padding: 48px 0; }
    .content .card-grid { grid-template-columns: 1fr; }
  }