:root {
  --fg: #0a0a0a;
  --muted: #6b7280;
  --line: #e5e7eb;
  --bg: #ffffff;
  --brand: #0b0b0b;
  --radius: 14px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font: 16px/1.45 system-ui, -apple-system, Segoe UI, Roboto, Inter, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
}

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,1px,1px); border: 0;
}

/* Layout */
.ks-container { width: 100%; max-width: 1120px; margin-inline: auto; padding: 0 24px; }
.ks-header {
  position: sticky; top: 0; z-index: 10;
  background: rgba(255,255,255,0.85);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--line);
}
.ks-header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }

.ks-logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: inherit; }
.ks-logo-dot { width: 28px; height: 28px; border-radius: 999px; border: 1px solid var(--line); display: inline-block; }

.ks-nav { display: flex; gap: 20px; }
.ks-link {
  font-size: 14px; color: var(--muted); text-decoration: none;
}
.ks-link:hover { color: var(--fg); }

.ks-main { min-height: calc(100vh - 64px); display: flex; align-items: center; }
.ks-hero { width: 100%; }
.ks-hero-inner {
  padding: 80px 0;
  display: grid; place-items: center; text-align: center;
}

.ks-tagline {
  margin: 0 0 28px;
  font-size: clamp(28px, 5vw, 64px);
  line-height: 1.1;
  font-weight: 550;
  letter-spacing: -0.02em;
}

.ks-form {
  display: flex; gap: 10px; width: min(640px, 100%);
  align-items: center; justify-content: center;
}
.ks-input {
  flex: 1;
  height: 48px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0 14px;
  outline: none;
}
.ks-input:focus { border-color: #c7cdd8; }

.ks-btn {
  height: 48px;
  padding: 0 16px;
  border-radius: var(--radius);
  border: 1px solid var(--brand);
  background: var(--brand);
  color: #fff;
  cursor: pointer;
}
.ks-btn:hover { background: #000; }
.ks-btn:disabled { opacity: 0.6; cursor: not-allowed; }

.ks-help {
  margin: 8px 0 0;
  font-size: 13px;
  color: var(--muted);
  text-align: left;
}

.ks-message {
  min-height: 22px;
  margin-top: 14px;
  font-size: 14px;
}

/* Footer spacer */
.ks-footer { height: 40px; }


.ks-logo-img {
  height: 32px;   /* adjust size to fit header */
  width: auto;
  display: block;
  color: red;
}