:root{
  --tk-primary:#2f6f4f;
  --tk-primary-dark:#204e37;
  --tk-accent:#f5a623;
  --tk-bg:#f6f8f6;
  --tk-card:#ffffff;
  --tk-text:#1f2a24;
  --tk-subtle:#6b7a70;
  --tk-border:#e2e8e3;
  --tk-danger:#c0392b;
  --tk-radius:14px;
}
*{box-sizing:border-box}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Arial,sans-serif;
  background:var(--tk-bg);
  color:var(--tk-text);
}
a{color:var(--tk-primary);text-decoration:none}
a:hover{text-decoration:underline}

.tk-topbar{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 32px;background:var(--tk-card);border-bottom:1px solid var(--tk-border);
}
.tk-logo{display:flex;align-items:center}
.tk-logo img{display:block}
.tk-nav a{margin-left:20px;color:var(--tk-text);font-weight:600;font-size:14px}
.tk-nav a:hover{color:var(--tk-primary)}

.tk-wrap{max-width:1100px;margin:0 auto;padding:32px 20px}
.tk-wrap.narrow{max-width:460px}

.tk-card{
  background:var(--tk-card);border:1px solid var(--tk-border);border-radius:var(--tk-radius);
  padding:28px;margin-bottom:20px;box-shadow:0 2px 10px rgba(0,0,0,.03);
}
.tk-card h1{margin-top:0;font-size:22px}
.tk-card h2{font-size:17px;margin-top:0}

label{display:block;font-weight:600;font-size:13px;margin:14px 0 6px;color:var(--tk-subtle)}
input[type=text],input[type=email],input[type=password],select{
  width:100%;padding:11px 13px;border:1px solid var(--tk-border);border-radius:10px;
  font-size:15px;background:#fff;color:var(--tk-text)
}
input:focus,select:focus{outline:2px solid var(--tk-primary);outline-offset:1px}

.btn{
  display:inline-block;padding:11px 20px;border-radius:10px;border:none;
  background:var(--tk-primary);color:#fff;font-weight:700;font-size:14px;cursor:pointer;
}
.btn:hover{background:var(--tk-primary-dark);text-decoration:none}
.btn.secondary{background:#fff;color:var(--tk-primary);border:1px solid var(--tk-primary)}
.btn.danger{background:var(--tk-danger)}
.btn.small{padding:6px 12px;font-size:12px}

.tk-alert{padding:12px 16px;border-radius:10px;margin-bottom:16px;font-size:14px}
.tk-alert.error{background:#fdecea;color:var(--tk-danger);border:1px solid #f5c6c1}
.tk-alert.success{background:#e9f7ef;color:var(--tk-primary-dark);border:1px solid #bfe6cd}

table{width:100%;border-collapse:collapse;font-size:14px}
th,td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--tk-border)}
th{color:var(--tk-subtle);font-weight:600;font-size:12px;text-transform:uppercase}

.tk-badge{display:inline-block;padding:3px 9px;border-radius:20px;font-size:12px;font-weight:700}
.tk-badge.on{background:#e9f7ef;color:var(--tk-primary-dark)}
.tk-badge.off{background:#fdecea;color:var(--tk-danger)}

.tk-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media(max-width:760px){.tk-grid{grid-template-columns:1fr}}

code.tk-code{
  display:block;background:#0d1b12;color:#c9f2d8;padding:16px;border-radius:10px;
  font-size:12.5px;overflow-x:auto;white-space:pre-wrap;word-break:break-all;
}

.tk-price{color:var(--tk-subtle);font-size:13px}
.tk-swatch{display:inline-block;width:20px;height:20px;border-radius:50%;vertical-align:middle;border:1px solid var(--tk-border)}

/* ── Landing page ─────────────────────────────────────────────── */
.tk-hero{
  text-align:center;padding:64px 20px 56px;
  background:linear-gradient(180deg,#eef6f0 0%,var(--tk-bg) 100%);
  border-bottom:1px solid var(--tk-border);
}
.tk-hero img{height:72px;margin-bottom:18px}
.tk-hero h1{font-size:36px;margin:0 0 14px;color:var(--tk-primary-dark);line-height:1.2}
.tk-hero p{font-size:17px;color:var(--tk-subtle);max-width:640px;margin:0 auto 26px}
.tk-hero .btn{margin:0 6px;padding:13px 26px;font-size:15px}

.tk-section{max-width:1100px;margin:0 auto;padding:56px 20px}
.tk-section h2{text-align:center;font-size:26px;color:var(--tk-primary-dark);margin-bottom:8px}
.tk-section .lead{text-align:center;color:var(--tk-subtle);max-width:600px;margin:0 auto 36px}

.tk-features{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media(max-width:760px){.tk-features{grid-template-columns:1fr}}
.tk-feature{background:var(--tk-card);border:1px solid var(--tk-border);border-radius:var(--tk-radius);padding:24px}
.tk-feature .ico{font-size:28px;margin-bottom:10px}
.tk-feature h3{margin:0 0 8px;font-size:16px}
.tk-feature p{margin:0;color:var(--tk-subtle);font-size:14px;line-height:1.5}

.tk-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;counter-reset:step}
@media(max-width:760px){.tk-steps{grid-template-columns:1fr}}
.tk-step{position:relative;padding:24px 20px 20px;background:var(--tk-card);border:1px solid var(--tk-border);border-radius:var(--tk-radius)}
.tk-step::before{
  counter-increment:step;content:counter(step);
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:50%;background:var(--tk-primary);color:#fff;
  font-weight:700;margin-bottom:12px;
}
.tk-step h3{margin:0 0 6px;font-size:15px}
.tk-step p{margin:0;color:var(--tk-subtle);font-size:14px}

.tk-pricing{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:stretch}
@media(max-width:760px){.tk-pricing{grid-template-columns:1fr}}
.tk-pricing .tk-card{margin-bottom:0}
.tk-price-big{font-size:34px;font-weight:800;color:var(--tk-primary-dark)}
.tk-price-big small{font-size:14px;font-weight:600;color:var(--tk-subtle)}
.tk-source-row{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px solid var(--tk-border);font-size:14px}
.tk-source-row:last-child{border-bottom:none}

.tk-about{display:grid;grid-template-columns:280px 1fr;gap:32px;align-items:center}
@media(max-width:760px){.tk-about{grid-template-columns:1fr}}
.tk-about img{width:100%;border-radius:var(--tk-radius);display:block}
.tk-about h2{text-align:left}

.tk-footer{border-top:1px solid var(--tk-border);padding:28px 20px;text-align:center;color:var(--tk-subtle);font-size:13px}
.tk-footer a{color:var(--tk-subtle)}