/* ==========================================================================
   IT WALK — marketing site (mailtrap-style dev-tool email platform)
   Indigo/violet brand, dark hero, emerald accent, code windows.
   ========================================================================== */
:root{
  --ink:#0E1222; --muted:#5B6478; --line:#E7E9F0;
  --bg:#FFFFFF; --bg-alt:#F7F8FC; --card:#FFFFFF;
  --primary:#5D5FEF; --primary-d:#4B4DDC; --violet:#7C3AED;
  --accent:#12D6A0;            /* emerald cta accent */
  --dark:#0B1020; --dark-2:#141A33;
  --radius:16px; --radius-lg:22px; --maxw:1180px;
  --shadow:0 18px 44px rgba(14,18,34,.12);
  --shadow-sm:0 4px 14px rgba(14,18,34,.07);
  --ease:cubic-bezier(.22,.61,.36,1);
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:'Inter',system-ui,-apple-system,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}
h1,h2,h3,h4{font-family:'Poppins',sans-serif;font-weight:800;line-height:1.12;letter-spacing:-.02em;margin:0}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px;width:100%}
.section{padding:84px 0}
.eyebrow{display:inline-block;font-weight:700;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--primary);background:#EEF0FE;padding:6px 13px;border-radius:999px;margin-bottom:14px}
.center{text-align:center}
.sec-head{max-width:660px;margin:0 auto 50px}
.sec-head h2{font-size:clamp(28px,4vw,42px)}
.sec-head p{color:var(--muted);font-size:17px;margin:14px 0 0}
.grad-text{background:linear-gradient(100deg,#8B8Cff,#12D6A0);-webkit-background-clip:text;background-clip:text;color:transparent}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:9px;justify-content:center;font-family:'Poppins',sans-serif;font-weight:700;font-size:15px;padding:13px 24px;border-radius:11px;border:0;cursor:pointer;transition:transform .18s var(--ease),box-shadow .18s,background .18s,color .18s;white-space:nowrap}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 24px rgba(93,95,239,.32)}
.btn-primary:hover{background:var(--primary-d);transform:translateY(-2px)}
.btn-accent{background:var(--accent);color:#05261C;box-shadow:0 10px 24px rgba(18,214,160,.32)}
.btn-accent:hover{transform:translateY(-2px);filter:brightness(1.03)}
.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--line)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary)}
.btn-light{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.22)}
.btn-light:hover{background:rgba(255,255,255,.2)}
.btn-lg{padding:15px 30px;font-size:16px}

/* ---------------- header ---------------- */
.hdr{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.82);backdrop-filter:blur(14px);border-bottom:1px solid transparent;transition:.3s}
.hdr.scrolled{border-bottom-color:var(--line);box-shadow:var(--shadow-sm)}
.hdr-in{display:flex;align-items:center;gap:26px;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-family:'Poppins',sans-serif;font-weight:800;font-size:19px;color:var(--ink)}
.brand .mark{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--primary),var(--violet));display:grid;place-items:center;color:#fff;font-size:15px}
.nav{display:flex;gap:6px;margin-left:8px}
.nav a{font-weight:600;font-size:15px;color:#3A4256;padding:8px 13px;border-radius:9px;transition:.2s}
.nav a:hover,.nav a.active{color:var(--primary);background:#EEF0FE}
.hdr-cta{margin-left:auto;display:flex;align-items:center;gap:10px}
.hdr-cta .login{font-weight:600;color:#3A4256;padding:8px 12px}
.hdr-cta .login:hover{color:var(--primary)}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px;margin-left:auto}
.burger span{width:24px;height:2.5px;background:var(--ink);border-radius:2px;transition:.3s}
.burger.on span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
.burger.on span:nth-child(2){opacity:0}
.burger.on span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}

/* ---------------- hero ---------------- */
.hero{position:relative;background:
  radial-gradient(900px 420px at 82% -10%,rgba(124,58,237,.34),transparent 60%),
  radial-gradient(760px 420px at 6% 110%,rgba(18,214,160,.18),transparent 55%),
  linear-gradient(160deg,#0B1020,#141A33 60%,#1a1550);color:#fff;overflow:hidden;padding:74px 0 90px}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:48px;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:13px;color:#CDD3F5;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.15);padding:7px 14px;border-radius:999px;margin-bottom:22px}
.hero-badge b{color:var(--accent)}
.hero h1{font-size:clamp(36px,5.4vw,60px);color:#fff}
.hero p.lead{font-size:19px;color:#C7CCE6;margin:22px 0 30px;max-width:520px}
.hero-btns{display:flex;gap:13px;flex-wrap:wrap}
.hero-mini{display:flex;gap:22px;margin-top:30px;flex-wrap:wrap;color:#AEB4D6;font-size:14px}
.hero-mini span{display:inline-flex;align-items:center;gap:7px}
.hero-mini svg{color:var(--accent)}

/* code window */
.code-win{background:#0d1330;border:1px solid rgba(255,255,255,.12);border-radius:14px;box-shadow:0 30px 60px rgba(0,0,0,.5);overflow:hidden;animation:floaty 7s ease-in-out infinite}
.code-top{display:flex;align-items:center;gap:8px;padding:12px 15px;background:#0a0f26;border-bottom:1px solid rgba(255,255,255,.08)}
.code-top i{width:11px;height:11px;border-radius:50%;display:inline-block}
.code-top .r{background:#ff5f57}.code-top .y{background:#febc2e}.code-top .g{background:#28c840}
.code-top span{margin-left:8px;font-family:var(--mono);font-size:12px;color:#8891bf}
.code-win pre{margin:0;padding:18px 18px;font-family:var(--mono);font-size:13px;line-height:1.7;color:#dfe4ff;overflow:auto}
.code-win .k{color:#8b8cff}.code-win .s{color:#12d6a0}.code-win .c{color:#6b74a8}.code-win .m{color:#febc7e}

/* logos strip */
.logos{padding:34px 0;background:var(--bg);border-bottom:1px solid var(--line)}
.logos p{text-align:center;color:var(--muted);font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;margin:0 0 18px}
.logos-row{display:flex;flex-wrap:wrap;gap:14px 34px;justify-content:center;align-items:center}
.logos-row .lg{font-family:'Poppins',sans-serif;font-weight:800;font-size:19px;color:#AAB0C4;opacity:.85}

/* product cards */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.prod-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);padding:30px 26px;transition:transform .3s var(--ease),box-shadow .3s,border-color .3s;position:relative;overflow:hidden}
.prod-card:hover{transform:translateY(-8px);box-shadow:var(--shadow);border-color:transparent}
.prod-ic{width:54px;height:54px;border-radius:14px;display:grid;place-items:center;font-size:24px;color:#fff;margin-bottom:18px}
.ic-api{background:linear-gradient(135deg,#5D5FEF,#7C3AED)}
.ic-sand{background:linear-gradient(135deg,#12D6A0,#0EA5E9)}
.ic-mkt{background:linear-gradient(135deg,#F59E0B,#EF4444)}
.prod-card h3{font-size:21px;margin-bottom:9px}
.prod-card p{color:var(--muted);font-size:15px;margin:0 0 16px}
.prod-card .more{font-weight:700;color:var(--primary);font-size:14px}

/* feature rows */
.frow{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;margin-bottom:70px}
.frow:last-child{margin-bottom:0}
.frow.rev .fr-media{order:-1}
.frow h3{font-size:clamp(24px,3vw,32px);margin-bottom:14px}
.frow p{color:var(--muted);font-size:16.5px;margin:0 0 18px}
.flist{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:11px}
.flist li{display:flex;gap:11px;align-items:flex-start;color:#39405A;font-size:15.5px}
.flist li::before{content:"✓";flex:0 0 auto;width:22px;height:22px;border-radius:50%;background:#E7FBF4;color:#0BA57D;font-weight:800;font-size:12px;display:grid;place-items:center;margin-top:2px}
.fr-media{background:linear-gradient(160deg,#EEF0FE,#F7F8FC);border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;box-shadow:var(--shadow-sm)}

/* stats band */
.stats{background:var(--dark);color:#fff}
.stats-in{display:flex;flex-wrap:wrap;justify-content:space-around;gap:24px;text-align:center}
.stats .n{font-family:'Poppins',sans-serif;font-weight:800;font-size:clamp(30px,4vw,42px);background:linear-gradient(100deg,#8B8Cff,#12D6A0);-webkit-background-clip:text;background-clip:text;color:transparent}
.stats .l{color:#AEB4D6;font-size:14px;margin-top:4px}

/* testimonials */
.tgrid{columns:3;column-gap:22px}
.tcard{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;margin:0 0 22px;break-inside:avoid;box-shadow:var(--shadow-sm)}
.tcard p{font-size:15px;color:#2C3348;margin:0 0 16px}
.tcard .who{display:flex;align-items:center;gap:11px}
.tcard .av{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--violet));color:#fff;display:grid;place-items:center;font-weight:800;font-family:'Poppins',sans-serif}
.tcard .who b{display:block;font-size:14px}
.tcard .who span{font-size:12.5px;color:var(--muted)}
.tstars{color:#F59E0B;margin-bottom:10px;letter-spacing:2px}

/* pricing */
.pgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;align-items:stretch}
.pcard{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px 24px;display:flex;flex-direction:column;transition:transform .3s var(--ease),box-shadow .3s}
.pcard:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.pcard.feat{border:2px solid var(--primary);box-shadow:var(--shadow);position:relative}
.pcard.feat::before{content:"Popular";position:absolute;top:-12px;left:50%;transform:translateX(-50%);background:var(--primary);color:#fff;font-size:11px;font-weight:700;padding:4px 12px;border-radius:999px;font-family:'Poppins',sans-serif}
.pcard .pname{font-family:'Poppins',sans-serif;font-weight:800;font-size:19px}
.pcard .price{font-family:'Poppins',sans-serif;font-weight:800;font-size:38px;margin:10px 0 2px}
.pcard .price sub{font-size:14px;color:var(--muted);font-weight:600}
.pcard .pdesc{color:var(--muted);font-size:13.5px;min-height:38px;margin-bottom:16px}
.pcard ul{list-style:none;padding:0;margin:0 0 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.pcard li{display:flex;gap:9px;font-size:14px;color:#39405A}
.pcard li::before{content:"✓";color:#0BA57D;font-weight:800}

/* code sample section */
.codesec{background:var(--dark-2);color:#fff}
.codesec .code-win{max-width:760px;margin:0 auto}

/* CTA band */
.cta{background:linear-gradient(120deg,var(--primary),var(--violet));color:#fff;text-align:center}
.cta h2{font-size:clamp(28px,4vw,40px);color:#fff}
.cta p{font-size:18px;opacity:.92;margin:14px auto 26px;max-width:520px}

/* footer */
.ft{background:#0B1020;color:#AEB4D6;padding:60px 0 26px}
.ft-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;margin-bottom:36px}
.ft .brand{color:#fff;margin-bottom:14px}
.ft-about{font-size:14px;line-height:1.7;color:#8891bf;max-width:280px}
.ft h4{color:#fff;font-family:'Poppins',sans-serif;font-size:15px;margin-bottom:15px}
.ft ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.ft a{font-size:14px;color:#AEB4D6;transition:color .2s}
.ft a:hover{color:var(--accent)}
.ft-bot{border-top:1px solid rgba(255,255,255,.08);padding-top:22px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:#6b74a8}

/* docs */
.doc-wrap{display:grid;grid-template-columns:220px 1fr;gap:40px;align-items:start}
.doc-nav{position:sticky;top:90px;display:flex;flex-direction:column;gap:4px}
.doc-nav a{font-size:14px;color:#3A4256;padding:8px 12px;border-radius:8px;font-weight:500}
.doc-nav a:hover{background:#EEF0FE;color:var(--primary)}
.doc-body h2{font-size:26px;margin:34px 0 12px}
.doc-body h2:first-child{margin-top:0}
.doc-body p{color:#39405A;margin:0 0 14px}
.doc-body table{width:100%;border-collapse:collapse;margin:14px 0}
.doc-body th,.doc-body td{border:1px solid var(--line);padding:9px 12px;text-align:left;font-size:14px}
.doc-body th{background:var(--bg-alt);font-family:'Poppins',sans-serif;font-size:12px;text-transform:uppercase;letter-spacing:.05em}
.doc-body code{background:#EEF0FE;color:#4B4DDC;padding:2px 6px;border-radius:5px;font-family:var(--mono);font-size:13px}

/* reveal */
.rv{opacity:0;transform:translateY(28px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.rv.in{opacity:1;transform:none}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.rv{opacity:1!important;transform:none!important}}

/* responsive */
@media(max-width:960px){
  .hero-grid,.frow,.frow.rev{grid-template-columns:1fr;gap:34px}
  .frow.rev .fr-media{order:0}
  .prod-grid{grid-template-columns:1fr}
  .pgrid{grid-template-columns:1fr 1fr}
  .tgrid{columns:2}
  .ft-grid{grid-template-columns:1fr 1fr}
  .doc-wrap{grid-template-columns:1fr}.doc-nav{position:static;flex-direction:row;flex-wrap:wrap}
}
@media(max-width:640px){
  .nav,.hdr-cta .login{display:none}
  .burger{display:flex}
  .nav.open{display:flex;position:absolute;top:68px;left:0;right:0;background:#fff;flex-direction:column;padding:14px 22px;box-shadow:var(--shadow);border-bottom:1px solid var(--line)}
  .nav.open a{width:100%}
  .pgrid,.tgrid{grid-template-columns:1fr;columns:1}
  .ft-grid{grid-template-columns:1fr}
  .section{padding:58px 0}
}