/* ════════════════════════════════════════════════════
   Rankto Design System — Theme CSS
   Version: 1.0  |  2026
   ════════════════════════════════════════════════════ */

/* ── Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

/* ── Variables ── */
:root {
  --bg:   #FFFFFF;
  --bg1:  #F4F7FE;
  --bg2:  #FFFFFF;
  --bg3:  #E8EFFF;
  --bd:   rgba(27,82,224,.08);
  --bdh:  rgba(27,82,224,.17);
  --t:    #0B1F4A;
  --t2:   rgba(11,31,74,.58);
  --t3:   rgba(11,31,74,.38);
  --or:   #1B52E0;
  --orh:  #3D6AFF;
  --ors:  rgba(27,82,224,.10);
  --mono: 'JetBrains Mono', monospace;
  --sans: 'Plus Jakarta Sans', system-ui, sans-serif;
  --nav-h: 64px;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--t);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  padding-top: var(--nav-h);
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }

/* ── Layout ── */
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 40px; }
@media (max-width: 768px) { .wrap { padding: 0 20px; } }

/* ── NAV ── */
#rk-header-placeholder { position: fixed; top: 0; left: 0; right: 0; z-index: 100; }
.rk-nav {
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--bd);
  box-shadow: 0 1px 16px rgba(27,82,224,.07);
}
.rk-ni { display: flex; align-items: center; height: var(--nav-h); }
.rk-logo {
  display: flex; align-items: center; gap: 5px;
  font-weight: 800; font-size: 21px; letter-spacing: -.02em;
  flex-shrink: 0; margin-right: 32px; cursor: pointer;
}
.rk-logo img { height: 26px; width: auto; display: block; flex-shrink: 0; }
.rk-nl { display: flex; gap: 22px; list-style: none; flex: 1; }
.rk-nl a {
  font-size: 13.5px; font-weight: 500; color: var(--t2);
  transition: color .2s; white-space: nowrap; padding: 4px 0;
  position: relative;
}
.rk-nl a:hover { color: var(--t); }
.rk-nl a.active { color: var(--or); font-weight: 600; }
.rk-nl a.active::after {
  content: ''; position: absolute; bottom: -2px; left: 0; right: 0;
  height: 2px; background: var(--or); border-radius: 1px;
}
.rk-nr { display: flex; align-items: center; gap: 10px; margin-left: auto; flex-shrink: 0; }
.rk-lbtn {
  display: flex; align-items: center; gap: 5px;
  font-family: var(--mono); font-size: 11.5px; color: var(--t2);
  border: 1.5px solid var(--bdh); border-radius: 6px; padding: 6px 10px;
  cursor: pointer; background: none; position: relative;
}
.rk-lbtn:hover { color: var(--t); }
.rk-ldrop {
  display: none; position: absolute; top: calc(100% + 8px); right: 0;
  background: var(--bg); border: 1px solid var(--bdh); border-radius: 10px;
  padding: 5px 0; min-width: 100px;
  box-shadow: 0 16px 40px rgba(27,82,224,.12); z-index: 200;
}
.rk-lbtn:hover .rk-ldrop,
.rk-lbtn.open .rk-ldrop,
.rk-lbtn:focus-within .rk-ldrop { display: block; }
.rk-ldrop a {
  display: block; padding: 7px 14px;
  font-family: var(--mono); font-size: 11px; color: var(--t2);
  transition: background .15s;
}
.rk-ldrop a:hover { background: var(--bg1); color: var(--t); }
.rk-ldrop a.cur { color: var(--or); font-weight: 600; }
.rk-btn-login {
  font-size: 13.5px; font-weight: 500; color: var(--t2);
  padding: 7px 14px; border-radius: 7px; border: 1px solid var(--bdh);
  transition: all .2s; background: none; cursor: pointer;
}
.rk-btn-login:hover { color: var(--t); border-color: rgba(27,82,224,.3); }
.rk-personal-icon {
  width: 36px; height: 36px; border-radius: 10px; border: 1px solid rgba(47,140,91,.22);
  background: rgba(47,140,91,.10); color: #2F8C5B;
  display: flex; align-items: center; justify-content: center;
  transition: all .2s; flex-shrink: 0;
}
.rk-personal-icon:hover { background: rgba(47,140,91,.16); border-color: rgba(47,140,91,.38); transform: translateY(-1px); }
.rk-personal-icon svg { width: 17px; height: 17px; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.rk-btn-signup {
  font-size: 13.5px; font-weight: 700; background: var(--or); color: #fff;
  border: none; border-radius: 7px; padding: 9px 18px; cursor: pointer;
  transition: background .2s; white-space: nowrap; font-family: var(--sans);
}
.rk-btn-signup:hover { background: var(--orh); }
.rk-hamburger {
  display: none; width: 38px; height: 38px;
  border: 1px solid var(--bdh); border-radius: 7px;
  background: none; cursor: pointer; font-size: 17px;
  align-items: center; justify-content: center; color: var(--t);
}
.rk-mmenu {
  display: none; flex-direction: column;
  background: var(--bg); border-bottom: 1px solid var(--bd);
  padding: 12px 20px 20px; gap: 2px;
}
.rk-mmenu.open { display: flex; }
.rk-mmenu a {
  font-size: 15px; font-weight: 600; padding: 11px 0;
  border-bottom: 1px solid var(--bd); color: var(--t);
}
.rk-mmenu a:last-child { border-bottom: none; }
.rk-mmenu a.active { color: var(--or); }
@media (max-width: 900px) {
  .rk-nl { display: none; }
  .rk-hamburger { display: flex; }
  .rk-personal-icon { display: none; }
}

/* ── AI SERVICE CHAT ── */
.rk-chat{position:fixed;right:24px;bottom:24px;z-index:980;font-family:var(--sans);}
.rk-chat-bubble{width:56px;height:56px;border-radius:18px;border:1px solid var(--bdh);background:linear-gradient(135deg,var(--or),var(--orh));color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 18px 44px rgba(27,82,224,.28);cursor:pointer;position:relative;transition:transform .18s,box-shadow .18s;}
.rk-chat-bubble:hover{transform:translateY(-2px);box-shadow:0 22px 54px rgba(27,82,224,.34);}
.rk-chat-bubble svg{width:25px;height:25px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.rk-chat-dot{position:absolute;top:9px;right:10px;width:9px;height:9px;border-radius:50%;background:#22c55e;border:2px solid #fff;}
.rk-chat-panel{display:none;position:absolute;right:0;bottom:70px;width:340px;background:rgba(255,255,255,.98);border:1px solid var(--bdh);border-radius:18px;box-shadow:0 24px 70px rgba(11,31,74,.22);overflow:hidden;transform-origin:bottom right;}
.rk-chat.open .rk-chat-panel{display:block;animation:rkChatIn .18s ease;}
@keyframes rkChatIn{from{opacity:0;transform:translateY(10px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}
.rk-chat-head{display:flex;align-items:center;gap:11px;padding:15px;border-bottom:1px solid var(--bd);background:linear-gradient(135deg,var(--bg1),#fff);}
.rk-chat-avatar{width:36px;height:36px;border-radius:12px;background:var(--ors);color:var(--or);display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:11px;font-weight:800;}
.rk-chat-title{font-size:14px;font-weight:800;color:var(--t);line-height:1.1;}
.rk-chat-status{font-size:11px;color:var(--t3);margin-top:3px;}
.rk-chat-close{margin-left:auto;width:28px;height:28px;border-radius:8px;border:1px solid var(--bd);background:#fff;color:var(--t2);cursor:pointer;font-size:18px;line-height:1;}
.rk-chat-body{padding:14px;max-height:310px;overflow:auto;background:var(--bg);}
.rk-chat-msg{max-width:86%;border-radius:14px;padding:10px 12px;font-size:12.5px;line-height:1.55;margin-bottom:10px;}
.rk-chat-msg.bot{background:var(--bg1);border:1px solid var(--bd);color:var(--t2);}
.rk-chat-msg.user{margin-left:auto;background:var(--or);color:#fff;}
.rk-chat-quick{display:flex;flex-wrap:wrap;gap:7px;margin-top:4px;}
.rk-chat-quick button{border:1px solid var(--bdh);background:#fff;border-radius:999px;padding:7px 10px;font-size:11.5px;font-weight:700;color:var(--t2);cursor:pointer;font-family:var(--sans);}
.rk-chat-quick button:hover{background:var(--ors);color:var(--or);}
.rk-chat-foot{display:grid;grid-template-columns:1fr auto;gap:8px;padding:12px;border-top:1px solid var(--bd);background:var(--bg1);}
.rk-chat-foot input{min-width:0;border:1px solid var(--bdh);border-radius:10px;padding:10px 11px;font-family:var(--sans);font-size:12.5px;color:var(--t);outline:none;background:#fff;}
.rk-chat-foot input:focus{border-color:var(--or);box-shadow:0 0 0 3px var(--ors);}
.rk-chat-foot button{border:none;border-radius:10px;background:var(--or);color:#fff;padding:0 13px;font-size:12px;font-weight:800;font-family:var(--sans);cursor:pointer;}
@media(max-width:620px){.rk-chat{right:16px;bottom:16px}.rk-chat-panel{width:calc(100vw - 32px);bottom:66px}.rk-chat-bubble{width:52px;height:52px;border-radius:16px}}

/* ── FOOTER ── */
.rk-footer {
  background: #0A1830;
  border-top: 1px solid rgba(255,255,255,.06);
  padding: 56px 0 26px;
}
.rk-fg {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1fr;
  gap: 32px; margin-bottom: 40px;
}
.rk-fbrand { display: flex; flex-direction: column; gap: 12px; }
.rk-flogo {
  display: flex; align-items: center; gap: 8px;
  font-weight: 800; font-size: 17px; color: rgba(234,230,223,.92);
}
.rk-flogo img { height: 22px; width: auto; flex-shrink: 0; filter: brightness(0) invert(1) opacity(.7); }
.rk-ftag { font-size: 12px; color: rgba(234,230,223,.42); line-height: 1.6; max-width: 220px; }
.rk-fci { display: flex; flex-direction: column; gap: 4px; }
.rk-fci a { font-size: 12px; color: rgba(234,230,223,.42); transition: color .2s; }
.rk-fci a:hover { color: rgba(234,230,223,.78); }
.rk-foff { font-size: 11.5px; color: rgba(234,230,223,.38); line-height: 1.9; }
.rk-foff strong {
  display: block; font-family: var(--mono); font-size: 9px;
  letter-spacing: .1em; text-transform: uppercase;
  color: rgba(234,230,223,.18); margin-bottom: 4px;
}
.rk-foff span { display: block; }
.rk-foff span::before { content: '·'; margin-right: 6px; color: var(--or); }
.rk-srs { display: flex; flex-direction: column; gap: 5px; margin-top: 1px; }
.rk-sr { display: flex; gap: 5px; flex-wrap: nowrap; }
.rk-so {
  height: 27px; padding: 0 9px 0 7px;
  border: 1px solid rgba(255,255,255,.12); border-radius: 6px;
  display: flex; align-items: center; gap: 5px;
  font-family: var(--mono); font-size: 9px;
  color: rgba(234,230,223,.58); letter-spacing: .03em;
  transition: all .2s; white-space: nowrap;
}
.rk-so svg { width: 11px; height: 11px; flex-shrink: 0; fill: currentColor; }
.rk-so:hover { border-color: rgba(255,255,255,.28); color: rgba(234,230,223,.9); }
.rk-fc h4 {
  font-family: var(--mono); font-size: 9.5px; letter-spacing: .1em;
  text-transform: uppercase; color: rgba(234,230,223,.42); margin-bottom: 15px;
}
.rk-fc a {
  display: block; font-size: 13px; color: rgba(234,230,223,.68);
  margin-bottom: 9px; transition: color .2s;
}
.rk-fc a:hover { color: rgba(234,230,223,.95); }
.rk-fbot {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 9px; border-top: 1px solid rgba(255,255,255,.06);
  padding-top: 22px; font-size: 11px; color: rgba(234,230,223,.38);
}
@media (max-width: 768px) {
  .rk-fg { grid-template-columns: 1fr 1fr; gap: 28px; }
  .rk-fbrand { grid-column: 1 / -1; }
  .rk-fbot { flex-direction: column; gap: 6px; }
  .rk-sr { flex-wrap: wrap; }
}

/* ── SECTIONS ── */
.sec  { padding: 92px 0; }
.secd { background: var(--bg1); }
.slb  {
  font-family: var(--mono); font-size: 11px; letter-spacing: .1em;
  text-transform: uppercase; color: var(--or); margin-bottom: 13px; display: block;
}
.sh {
  font-size: clamp(28px, 3.6vw, 48px); font-weight: 800;
  letter-spacing: -.03em; line-height: 1.07; color: var(--t); margin-bottom: 13px;
}
.ss { font-size: 16px; color: var(--t2); max-width: 560px; line-height: 1.7; }

/* ── PAGE HERO (inner pages) ── */
.page-hero {
  padding: 72px 0 64px;
  background:
    radial-gradient(ellipse 60% 80% at 95% 50%, rgba(27,82,224,.05) 0%, transparent 65%),
    repeating-linear-gradient(0deg, transparent 0 39px, rgba(27,82,224,.018) 39px 40px),
    repeating-linear-gradient(90deg, transparent 0 39px, rgba(27,82,224,.018) 39px 40px),
    var(--bg1);
  border-bottom: 1px solid var(--bd);
}
.page-hero .eyebrow {
  font-family: var(--mono); font-size: 11px; letter-spacing: .12em;
  text-transform: uppercase; color: var(--or); margin-bottom: 18px;
  display: flex; align-items: center; gap: 8px;
}
.page-hero .eyebrow::before { content: ''; width: 18px; height: 1px; background: var(--or); }
.page-hero h1 {
  font-size: clamp(32px, 4vw, 52px); font-weight: 800;
  line-height: 1.07; letter-spacing: -.03em; color: var(--t);
  margin-bottom: 18px; max-width: 680px;
}
.page-hero h1 em {
  font-style: normal;
  background: linear-gradient(90deg, #1B52E0 0%, #5B8AFF 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.page-hero p {
  font-size: 17px; color: var(--t2); max-width: 520px; line-height: 1.72;
}
.page-hero-actions { display: flex; gap: 12px; margin-top: 30px; flex-wrap: wrap; }

/* ── BUTTONS ── */
.btn-p {
  font-size: 14px; font-weight: 700; background: var(--or); color: #fff;
  border: none; border-radius: 8px; padding: 13px 26px;
  transition: background .2s, transform .15s; cursor: pointer;
  font-family: var(--sans); display: inline-flex; align-items: center; gap: 7px;
}
.btn-p:hover { background: var(--orh); transform: translateY(-1px); }
.btn-g {
  font-size: 14px; font-weight: 600; color: var(--t2);
  border: 1px solid var(--bdh); border-radius: 8px; padding: 12px 24px;
  transition: all .2s; background: none; display: inline-flex; align-items: center; gap: 7px;
}
.btn-g:hover { color: var(--t); border-color: rgba(27,82,224,.3); }

/* ── CARDS ── */
.card {
  border: 1px solid var(--bd); border-radius: 14px;
  background: var(--bg2); padding: 32px;
  transition: border-color .2s, transform .2s;
}
.card:hover { border-color: var(--bdh); transform: translateY(-2px); }
.card-icon {
  width: 44px; height: 44px; border: 1px solid var(--bdh); border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; margin-bottom: 20px; color: var(--or); background: var(--ors);
}
.card h3 { font-size: 18px; font-weight: 700; color: var(--t); margin-bottom: 8px; letter-spacing: -.01em; }
.card p  { font-size: 13.5px; color: var(--t2); line-height: 1.72; }

/* ── GRID LAYOUTS ── */
.g2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.g3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.g4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
@media (max-width: 900px) {
  .g3, .g4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .g2, .g3, .g4 { grid-template-columns: 1fr; }
  .sec { padding: 60px 0; }
  .page-hero { padding: 48px 0 42px; }
  .page-hero h1 { font-size: clamp(26px, 7vw, 36px); }
}

/* ── TAGS ── */
.tag {
  font-family: var(--mono); font-size: 10px; letter-spacing: .06em;
  text-transform: uppercase; color: var(--or);
  display: inline-block; margin-bottom: 10px;
}

/* ── DIVIDER ── */
.divider { width: 100%; height: 1px; background: var(--bd); margin: 0; }

/* ── STAT BAR ── */
.stat-bar {
  display: grid; grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--bd); border-bottom: 1px solid var(--bd);
  background: var(--bg1);
}
.stat-item { padding: 26px 30px; border-right: 1px solid var(--bd); }
.stat-item:last-child { border-right: none; }
.stat-num { font-size: 34px; font-weight: 800; letter-spacing: -.04em; line-height: 1; }
.stat-num span { color: var(--or); }
.stat-lbl { font-size: 12px; color: var(--t3); margin-top: 5px; }
@media (max-width: 768px) {
  .stat-bar { grid-template-columns: 1fr 1fr; }
  .stat-item { border-bottom: 1px solid var(--bd); }
  .stat-item:nth-child(2) { border-right: none; }
  .stat-item:nth-child(3) { border-bottom: none; }
  .stat-item:last-child { border-bottom: none; border-right: none; }
}

/* ── CTA BANNER ── */
.cta-banner {
  background: linear-gradient(120deg, #0B1F4A 0%, #1B52E0 100%);
  border-radius: 20px; padding: 64px 60px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 40px; flex-wrap: wrap;
}
.cta-banner h2 {
  font-size: clamp(24px, 3vw, 38px); font-weight: 800;
  color: #fff; letter-spacing: -.03em; line-height: 1.12; max-width: 520px;
}
.cta-banner p { font-size: 15px; color: rgba(255,255,255,.65); margin-top: 8px; max-width: 460px; }
.btn-white {
  font-size: 14px; font-weight: 700; background: #fff; color: var(--or);
  border: none; border-radius: 8px; padding: 13px 28px;
  cursor: pointer; font-family: var(--sans);
  transition: opacity .2s, transform .15s; flex-shrink: 0; white-space: nowrap;
}
.btn-white:hover { opacity: .92; transform: translateY(-1px); }
@media (max-width: 768px) {
  .cta-banner { padding: 40px 28px; }
  .cta-banner h2 { font-size: 24px; }
}

/* ── FAQ ── */
.faq-list { max-width: 720px; margin: 50px auto 0; }
.fi { border-bottom: 1px solid var(--bd); }
.fi:first-child { border-top: 1px solid var(--bd); }
.fq {
  width: 100%; display: flex; justify-content: space-between; align-items: center;
  gap: 12px; padding: 19px 0; font-size: 14.5px; font-weight: 600; color: var(--t);
  background: none; border: none; cursor: pointer; text-align: left; font-family: var(--sans);
}
.fq:hover { color: var(--or); }
.fic { font-size: 18px; color: var(--t3); transition: transform .3s; flex-shrink: 0; }
.fi.open .fic { transform: rotate(45deg); color: var(--or); }
.fa { max-height: 0; overflow: hidden; transition: max-height .4s cubic-bezier(.4,0,.2,1); }
.fi.open .fa { max-height: 300px; }
.fa p { padding: 0 0 18px; font-size: 13.5px; color: var(--t2); line-height: 1.78; }

/* ── BREADCRUMB ── */
.breadcrumb {
  font-family: var(--mono); font-size: 11px; color: var(--t3);
  margin-bottom: 20px; display: flex; gap: 8px; align-items: center;
}
.breadcrumb a { color: var(--t3); transition: color .2s; }
.breadcrumb a:hover { color: var(--or); }
.breadcrumb span { color: var(--t3); }

/* ── FORM ── */
.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.form-group label { font-family: var(--mono); font-size: 10.5px; letter-spacing: .06em; text-transform: uppercase; color: var(--t3); }
.form-input {
  width: 100%; padding: 11px 13px; border: 1px solid var(--bdh);
  border-radius: 8px; font-size: 13.5px; font-family: var(--sans);
  background: var(--bg1); color: var(--t);
  transition: border-color .2s, box-shadow .2s; outline: none;
}
.form-input::placeholder { color: var(--t3); }
.form-input:focus { border-color: var(--or); box-shadow: 0 0 0 3px rgba(27,82,224,.1); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 600px) { .form-row { grid-template-columns: 1fr; } }
.form-select {
  -webkit-appearance: none; appearance: none; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='11' height='7' viewBox='0 0 11 7'%3E%3Cpath d='M1 1l4.5 4.5L10 1' stroke='rgba(11,31,74,.4)' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 12px center; padding-right: 32px;
}
.form-select option { background: var(--bg); }

/* ── LOGO MARQUEE ── */
.marquee-wrap { overflow: hidden; mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.marquee-track { display: flex; gap: 50px; width: max-content; animation: mLeft 30s linear infinite; align-items: center; }
.marquee-wrap:hover .marquee-track { animation-play-state: paused; }
@keyframes mLeft { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.logo-name {
  font-family: var(--sans); font-weight: 700; font-size: 13.5px;
  letter-spacing: .06em; text-transform: uppercase; color: rgba(11,31,74,.5);
  white-space: nowrap; transition: color .2s;
}
.logo-name:hover { color: rgba(11,31,74,.78); }