:root {
  --bg: #ffffff;
  --fg: #0a0a0a;
  --fg-2: #2a2a2a;
  --fg-dim: #767676;
  --fg-faint: #b8b8b8;
  --line: #ececec;
  --accent: #2546A9;
  --accent-soft: #e8edfa;
  --max: 1200px;
  --pad: 40px;
  --sans: "Inter", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
html, body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: geometricPrecision;
}
body {
  font-size: 15px;
  line-height: 1.5;
  letter-spacing: -0.005em;
  min-height: 100vh;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
em { font-style: italic; font-weight: 400; color: var(--fg-dim); }
strong { font-weight: 500; }
::selection { background: var(--accent); color: #fff; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--pad); }
section { padding: 96px 0; }
section + section { border-top: 1px solid var(--line); }

/* Nav */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 60;
  background: rgba(255,255,255,0.92);
  backdrop-filter: saturate(140%) blur(8px);
  -webkit-backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 18px var(--pad);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}
.nav-brand {
  font-weight: 600;
  font-size: 14px;
  letter-spacing: -0.01em;
}
.nav-links { display: flex; gap: 24px; align-items: center; }
.nav-links a {
  font-size: 13px;
  color: var(--fg-dim);
  transition: color 180ms;
}
.nav-links a:hover { color: var(--fg); }
.nav-links a.active { color: var(--fg); }
.nav-links .btn-nav {
  background: var(--accent);
  color: #fff;
  padding: 8px 16px;
  border-radius: 999px;
  font-weight: 500;
  transition: opacity 180ms;
}
.nav-links .btn-nav:hover { opacity: 0.85; color: #fff; }
.nav-links .btn-nav-ghost {
  border: 1px solid var(--line);
  color: var(--fg);
  padding: 7px 15px;
  border-radius: 999px;
  font-weight: 500;
  transition: border-color 180ms;
}
.nav-links .btn-nav-ghost:hover { border-color: var(--fg); color: var(--fg); }

/* Hero */
.hero { padding: 200px 0 120px; }
.hero .meta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--fg-dim);
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.hero .meta .pill {
  background: var(--accent-soft);
  color: var(--accent);
  padding: 4px 12px;
  border-radius: 999px;
  font-weight: 500;
  font-size: 12px;
}
.hero h1 {
  font-size: clamp(48px, 7vw, 96px);
  font-weight: 500;
  line-height: 0.96;
  letter-spacing: -0.04em;
  max-width: 16ch;
  text-wrap: balance;
}
.hero .lede {
  margin-top: 40px;
  font-size: clamp(17px, 1.5vw, 21px);
  line-height: 1.5;
  color: var(--fg-2);
  max-width: 60ch;
  text-wrap: pretty;
}
.hero .cta-row {
  margin-top: 48px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 500;
  font-size: 14px;
  transition: opacity 180ms, background 180ms, border-color 180ms;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { opacity: 0.9; color: #fff; }
.btn-ghost { border: 1px solid var(--line); color: var(--fg); }
.btn-ghost:hover { border-color: var(--fg); }
.btn .arrow { transition: transform 240ms; display: inline-block; }
.btn:hover .arrow { transform: translateX(4px); }

/* Section heads */
.section-head { margin-bottom: 48px; }
.section-head h2 {
  font-size: clamp(28px, 3vw, 44px);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.03em;
  text-wrap: balance;
  max-width: 22ch;
}
.section-head .eyebrow {
  font-size: 13px;
  color: var(--accent);
  margin-bottom: 12px;
  font-weight: 500;
}
.section-head p {
  font-size: 17px;
  color: var(--fg-2);
  margin-top: 16px;
  max-width: 60ch;
}

/* Features 2-col */
.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
}
.features-grid .item {
  padding: 28px 0;
  border-top: 1px solid var(--line);
  padding-right: 32px;
}
.features-grid .item:nth-child(even) {
  padding-left: 32px;
  border-left: 1px solid var(--line);
  padding-right: 0;
}
.features-grid .item:nth-last-child(-n+2) { border-bottom: 1px solid var(--line); }
.features-grid .num {
  font-size: 12px;
  color: var(--accent);
  margin-bottom: 10px;
  font-weight: 500;
  letter-spacing: 0.04em;
}
.features-grid h3 {
  font-size: 20px;
  font-weight: 500;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
}
.features-grid p {
  font-size: 14px;
  line-height: 1.55;
  color: var(--fg-2);
  text-wrap: pretty;
}

/* 3-col features */
.features-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}
.features-3 .item {
  padding: 24px 24px 24px 0;
  border-top: 1px solid var(--line);
}
.features-3 .item:nth-child(3n+2) { padding-left: 24px; padding-right: 24px; border-left: 1px solid var(--line); border-right: 1px solid var(--line); }
.features-3 .item:nth-child(3n) { padding-left: 24px; padding-right: 0; }
.features-3 .item:nth-last-child(-n+3) { border-bottom: 1px solid var(--line); }
.features-3 .num { font-size: 12px; color: var(--accent); margin-bottom: 10px; font-weight: 500; }
.features-3 h3 { font-size: 17px; font-weight: 500; letter-spacing: -0.015em; margin-bottom: 8px; }
.features-3 p { font-size: 13px; line-height: 1.5; color: var(--fg-2); }

/* Stat row */
.stat-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  border-top: 1px solid var(--fg);
  border-bottom: 1px solid var(--line);
  padding: 32px 0;
  margin-bottom: 64px;
}
.stat-row .stat .v {
  font-size: clamp(28px, 3vw, 40px);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1;
}
.stat-row .stat .l {
  font-size: 12px;
  color: var(--fg-dim);
  margin-top: 8px;
  letter-spacing: 0.04em;
}

/* Download panel */
.download-panel {
  background: var(--accent-soft);
  padding: 56px 48px;
  border-radius: 24px;
}
.download-panel h2 {
  font-size: clamp(28px, 3.5vw, 48px);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: 16px;
}
.download-panel p {
  font-size: 16px;
  color: var(--fg-2);
  max-width: 56ch;
  margin-bottom: 24px;
}
.download-panel .platforms {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 24px 0;
}
.download-panel .platforms span {
  background: rgba(255,255,255,0.7);
  border: 1px solid var(--line);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 13px;
  color: var(--fg-2);
}
.download-panel .small {
  font-size: 13px;
  color: var(--fg-dim);
  margin-top: 16px;
}
.download-panel .small a { color: var(--accent); border-bottom: 1px solid var(--accent); }

/* Long-form list (used for FAQ, steps) */
.q-list .item {
  padding: 24px 0;
  border-top: 1px solid var(--line);
}
.q-list .item:last-child { border-bottom: 1px solid var(--line); }
.q-list .q {
  font-size: 17px;
  font-weight: 500;
  letter-spacing: -0.015em;
  margin-bottom: 8px;
}
.q-list .a {
  font-size: 14px;
  color: var(--fg-2);
  line-height: 1.55;
  text-wrap: pretty;
}

/* Persona cards */
.personas {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.persona {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 24px;
  background: #fff;
}
.persona .who {
  font-size: 15px;
  font-weight: 500;
  margin-bottom: 8px;
}
.persona .why {
  font-size: 13px;
  color: var(--fg-2);
  line-height: 1.55;
}

/* Status banner (for arccap) */
.status-banner {
  background: var(--accent-soft);
  border: 1px solid var(--line);
  padding: 16px 20px;
  border-radius: 12px;
  margin-top: 48px;
  font-size: 14px;
  color: var(--fg-2);
}
.status-banner strong { color: var(--accent); }

/* Parent link to simulark */
.parent-link {
  position: fixed;
  bottom: 24px;
  left: 24px;
  z-index: 100;
  background: var(--fg);
  color: #fff;
  padding: 10px 16px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  display: inline-flex;
  gap: 8px;
  align-items: center;
  transition: opacity 180ms;
}
.parent-link:hover { opacity: 0.9; color: #fff; }

/* Footer */
footer {
  border-top: 1px solid var(--line);
  margin-top: 96px;
}
footer .wrap {
  padding-top: 32px;
  padding-bottom: 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--fg-dim);
  gap: 16px;
  flex-wrap: wrap;
}
footer .by strong { color: var(--fg); font-weight: 500; }

/* Reveal */
[data-reveal] {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 600ms cubic-bezier(.2,.7,.3,1), transform 600ms cubic-bezier(.2,.7,.3,1);
  transition-delay: var(--rd, 0ms);
}
[data-reveal].in { opacity: 1; transform: none; }

/* Responsive */
@media (max-width: 1024px) {
  :root { --pad: 24px; }
  .features-grid { grid-template-columns: 1fr; }
  .features-grid .item:nth-child(even) {
    padding: 24px 0;
    border-left: none;
  }
  .features-grid .item:not(:first-child) { border-top: 1px solid var(--line); }
  .features-3 { grid-template-columns: 1fr; }
  .features-3 .item, .features-3 .item:nth-child(3n+2), .features-3 .item:nth-child(3n) {
    padding: 24px 0;
    border-left: none;
    border-right: none;
  }
  .stat-row { grid-template-columns: repeat(2, 1fr); }
  .personas { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  :root { --pad: 20px; }
  .nav-links { gap: 10px; }
  .nav-links a:not(.btn-nav) { font-size: 12px; }
  .nav-inner { flex-wrap: wrap; }
  section { padding: 56px 0; }
  .hero { padding: 140px 0 64px; }
  .download-panel { padding: 32px 24px; }
  footer .wrap { flex-direction: column; align-items: flex-start; }
  .parent-link { bottom: 12px; left: 12px; font-size: 11px; padding: 8px 12px; }
}

/* Screenshots */
.screenshot {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #fafafa;
}
.screenshot-cap {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  color: var(--fg-dim);
}
.screenshot-block { margin-top: 32px; }
.screenshot-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  margin-top: 32px;
}
.screenshot-grid .screenshot-cap { text-align: left; }
.screenshot-hero {
  margin: 48px 0 0;
  border-radius: 10px;
  box-shadow: 0 16px 48px -16px rgba(0,0,0,0.18);
}

/* Hover + Lightbox */
.screenshot { cursor: zoom-in; transition: transform .25s ease, box-shadow .25s ease; }
.screenshot:hover { transform: translateY(-3px); box-shadow: 0 14px 36px -10px rgba(0,0,0,0.22); }
.screenshot-hero { cursor: zoom-in; transition: transform .25s ease, box-shadow .25s ease; }
.screenshot-hero:hover { transform: translateY(-3px); }

.lb-overlay {
  position: fixed; inset: 0; z-index: 9999;
  background: rgba(0,0,0,0.94);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: opacity .2s ease;
  cursor: zoom-out;
  padding: 24px;
}
.lb-overlay.in { opacity: 1; }
.lb-overlay img { max-width: 96vw; max-height: 92vh; object-fit: contain; border-radius: 4px; box-shadow: 0 20px 60px rgba(0,0,0,0.5); }
.lb-overlay .lb-close { position: absolute; top: 20px; right: 24px; color: rgba(255,255,255,0.85); font-size: 28px; font-weight: 300; line-height: 1; user-select: none; pointer-events: none; }
.lb-overlay .lb-cap { position: absolute; bottom: 20px; left: 0; right: 0; text-align: center; color: rgba(255,255,255,0.75); font-size: 13px; padding: 0 24px; }

/* Erişim / kayıt talep formu */
.lp-form {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px 24px;
  max-width: 760px;
}
.lp-field { display: flex; flex-direction: column; gap: 8px; }
.lp-field-full { grid-column: 1 / -1; }
.lp-form label {
  font-size: 13px;
  color: var(--fg-dim);
  letter-spacing: 0.01em;
}
.lp-opt { color: var(--fg-faint); }
.lp-form input,
.lp-form select,
.lp-form textarea {
  font-family: var(--sans);
  font-size: 14px;
  color: var(--fg);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 11px 14px;
  width: 100%;
  transition: border-color 180ms;
}
.lp-form textarea { resize: vertical; min-height: 96px; }
.lp-form input:focus,
.lp-form select:focus,
.lp-form textarea:focus {
  outline: none;
  border-color: var(--accent);
}
.lp-consent {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  color: var(--fg-2);
  line-height: 1.5;
  cursor: pointer;
}
.lp-consent input {
  width: 16px; height: 16px;
  margin-top: 1px;
  flex-shrink: 0;
  accent-color: var(--accent);
}
.lp-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.lp-form button[type="submit"] { border: none; cursor: pointer; }
.lp-form button[disabled] { opacity: 0.5; cursor: not-allowed; }
.lp-msg { font-size: 13px; line-height: 1.5; }
.lp-msg.ok { color: var(--accent); }
.lp-msg.err { color: #b3261e; }
.dl-note { font-size: 13px; color: var(--fg-dim); }
@media (max-width: 640px) {
  .lp-form { grid-template-columns: 1fr; }
}