/* ==========================================================================
   Realty Technology Training — v3 sub-brand
   Same kinetic system (Space Grotesk, 2px borders, 0 radius, 100ms floods)
   but a full vibe shift: light surfaces, RTT lime #7FC63F + blue #1B75BB.
   ========================================================================== */

:root {
  --green: #7fc63f;
  --green-deep: #5a9424;
  --blue: #1b75bb;
  --blue-deep: #124f80;
  --ink: #0e2438;
  --bg: #ffffff;
  --mist: #f1f7ec;
  --line: rgba(14, 36, 56, 0.18);
  --muted: #486079;
  --grotesk: "Space Grotesk", system-ui, sans-serif;
  --pad: clamp(20px, 4.5vw, 64px);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 92px; overflow-x: clip; }
body {
  font-family: var(--grotesk);
  font-size: 17px; line-height: 1.55;
  background: var(--bg); color: var(--ink);
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
::selection { background: var(--green); color: var(--ink); }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 3px; }

h1, h2, h3 { font-weight: 700; text-transform: uppercase; letter-spacing: -0.01em; line-height: 0.96; }

.rdot { display: inline-block; width: 0.22em; height: 0.22em; background: var(--green); margin-left: 0.12em; }
.rdot-lg { width: 0.16em; height: 0.16em; }
.rdot-md { width: 0.18em; height: 0.18em; }

/* ---------------- buttons ---------------- */
.rbtn {
  display: inline-flex; align-items: center; gap: 10px;
  min-height: 54px; padding: 0 28px;
  font-weight: 700; font-size: 14px;
  text-transform: uppercase; letter-spacing: 0.06em;
  white-space: nowrap;
  background: var(--blue); color: #fff;
  border: 2px solid var(--blue);
  transition: background-color 0.1s linear, color 0.1s linear, border-color 0.1s linear;
}
.rbtn:hover { background: var(--green); border-color: var(--green); color: var(--ink); }
.rbtn-o { background: transparent; color: var(--blue); }
.rbtn-o:hover { background: var(--blue); color: #fff; border-color: var(--blue); }
.rbtn-nav { min-height: 44px; padding: 0 18px; font-size: 12px; background: var(--green); border-color: var(--green); color: var(--ink); }
.rbtn-nav:hover { background: var(--blue); border-color: var(--blue); color: #fff; }
.rbtn-lg { min-height: 60px; padding: 0 34px; font-size: 15px; }

/* ---------------- nav ---------------- */
.rnav {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  height: 84px;
  display: flex; align-items: center; justify-content: space-between; gap: 14px;
  padding: 0 var(--pad);
  background: color-mix(in srgb, #fff 88%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 2px solid var(--line);
}
.rback {
  font-size: 12px; font-weight: 700; letter-spacing: 0.12em;
  display: inline-flex; align-items: baseline; gap: 2px;
  border: 2px solid var(--line);
  padding: 10px 14px;
  white-space: nowrap;
  transition: background-color 0.1s linear, color 0.1s linear;
}
.rback .rdot { background: #f5222d; } /* Simple's red — the way home */
.rback:hover { background: var(--ink); color: #fff; }
.rlogo { width: clamp(126px, 13vw, 180px); }
.rlinks { display: flex; align-items: center; gap: clamp(12px, 2vw, 30px); }
.rlinks > a:not(.rbtn) {
  display: none;
  font-size: 12.5px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.14em;
  border-bottom: 2px solid transparent; padding: 6px 0;
  transition: border-color 0.1s linear;
}
.rlinks > a:not(.rbtn):hover { border-bottom-color: var(--green); }
@media (min-width: 880px) { .rlinks > a:not(.rbtn) { display: inline-block; } }
@media (max-width: 560px) { .rback { padding: 10px 11px; } .rbtn-nav { padding: 0 12px; } }

/* ---------------- hero ---------------- */
.rhero {
  position: relative;
  padding: calc(84px + clamp(18px, 4vh, 44px)) var(--pad) 0;
  background: var(--mist);
  overflow: clip;
}
.rkick {
  display: inline-block;
  font-size: 12px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.2em;
  color: var(--blue);
  border: 2px solid var(--line);
  background: #fff;
  padding: 9px 14px;
  margin-bottom: clamp(22px, 4vh, 38px);
}
.rhero h1 { font-size: clamp(42px, 7.6vw, 110px); letter-spacing: -0.02em; }
.rsub { max-width: 600px; margin-top: 22px; font-size: clamp(16.5px, 1.5vw, 20px); color: var(--muted); }
.rctas { display: flex; flex-wrap: wrap; gap: 14px; margin: clamp(26px, 4.5vh, 42px) 0 clamp(48px, 7vh, 76px); }
/* pixel band — echo of the RTT logomark */
.rband { display: grid; grid-template-columns: repeat(12, 1fr); height: 26px; }
.rband i { border: 1px solid rgba(255, 255, 255, 0.6); }
.rband i:nth-child(odd) { background: var(--green); }
.rband i:nth-child(even) { background: var(--blue); }
.rband i:nth-child(3n) { background: var(--blue-deep); }
.rband i:nth-child(5n) { background: var(--green); }

/* ---------------- stats ---------------- */
.rstats { display: grid; grid-template-columns: 1fr; border-bottom: 2px solid var(--line); }
@media (min-width: 760px) { .rstats { grid-template-columns: repeat(3, 1fr); } }
.rstats > div { padding: clamp(30px, 4.5vw, 52px) var(--pad); border: 2px solid var(--line); margin: -1px; }
.rstats b {
  display: block;
  font-size: clamp(48px, 6vw, 84px);
  font-weight: 700; line-height: 1; letter-spacing: -0.02em;
  color: var(--blue);
  font-variant-numeric: tabular-nums;
}
.rstats > div:nth-child(2) b { color: var(--green-deep); }
.rstats i {
  display: block; margin-top: 10px;
  font-style: normal; font-size: 11px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.18em;
  color: var(--muted);
}

/* ---------------- sections ---------------- */
/* Vertical rhythm tightened per Chandler R2 notes (2026-07-07): section
   padding + bar/lead spacing pulled in so sections don't float apart. */
.rsec { padding: clamp(48px, 6.5vw, 88px) var(--pad); }
.rbar {
  display: flex; align-items: center; justify-content: space-between;
  border-bottom: 2px solid var(--line);
  padding-bottom: 12px; margin-bottom: clamp(20px, 3vw, 34px);
}
.rtag { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.22em; color: var(--green-deep); }
.rtag-lime { color: #d8f0ae; }
.rno { font-size: 12px; font-weight: 700; letter-spacing: 0.22em; color: var(--muted); }
.rno-w { color: rgba(255, 255, 255, 0.7); }
.rbar-w { border-color: rgba(255, 255, 255, 0.3); }
.rsec h2 { font-size: clamp(32px, 5vw, 68px); max-width: 22ch; margin-bottom: 16px; }
.rp { max-width: 620px; color: var(--muted); margin-bottom: clamp(24px, 3.5vw, 40px); }

/* tracks */
.rgrid { display: grid; border: 2px solid var(--line); }
@media (min-width: 860px) { .rgrid { grid-template-columns: repeat(2, 1fr); } }
.rcard {
  padding: clamp(26px, 3.4vw, 44px);
  border: 2px solid var(--line);
  margin: -1px;
  transition: background-color 0.1s linear;
}
.rcard:hover { background: var(--mist); }
.rchip {
  display: inline-block;
  font-size: 11px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.16em;
  padding: 7px 12px;
  margin-bottom: 20px;
}
.rchip-g { background: var(--green); color: var(--ink); }
.rchip-b { background: var(--blue); color: #fff; }
.rcard h3 { font-size: clamp(22px, 2.3vw, 30px); margin-bottom: 10px; }
.rcard p { font-size: 15.5px; color: var(--muted); }

/* why — blue field */
.rsec-blue { background: var(--blue); color: #fff; }
.rsec-blue h2 { color: #fff; }
.rsteps { list-style: none; display: grid; border: 2px solid rgba(255, 255, 255, 0.3); }
@media (min-width: 880px) { .rsteps { grid-template-columns: repeat(4, 1fr); } }
.rsteps li { padding: clamp(24px, 3vw, 36px); border: 2px solid rgba(255, 255, 255, 0.3); margin: -1px; }
.rsteps b {
  display: block;
  font-size: clamp(48px, 5vw, 76px); font-weight: 700; line-height: 1;
  color: transparent;
  -webkit-text-stroke: 2px var(--green);
  margin-bottom: 16px;
}
.rsteps h3 { font-size: 21px; margin-bottom: 6px; }
.rsteps p { font-size: 14.5px; color: rgba(255, 255, 255, 0.88); }

/* CTA */
.rcta {
  text-align: center;
  padding: clamp(80px, 11vw, 150px) var(--pad);
  background: var(--mist);
  border-top: 2px solid var(--line);
}
.rcta h2 { font-size: clamp(32px, 5.4vw, 72px); max-width: 20ch; margin: 0 auto 18px; }
.rcta p { color: var(--muted); max-width: 540px; margin: 0 auto 34px; }

/* footer */
.rfoot {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 20px;
  padding: clamp(36px, 5vw, 56px) var(--pad);
  border-top: 2px solid var(--line);
}
.rfoot p { font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.12em; color: var(--muted); }
.rfoot a {
  font-size: 12px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.12em;
  display: inline-flex; align-items: baseline;
  border-bottom: 2px solid transparent; padding-bottom: 2px;
  transition: border-color 0.1s linear;
}
.rfoot a:hover { border-color: var(--green); }
.rfoot .rdot { background: #f5222d; }

/* reveals */
html.js [data-k] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s cubic-bezier(0.22, 1, 0.36, 1), transform 0.55s cubic-bezier(0.22, 1, 0.36, 1);
}
html.js [data-k].in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  html.js [data-k] { opacity: 1; transform: none; transition: none; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* sponsored-series section (R2) */
.rsec-sponsor { background: var(--mist); border-top: 2px solid var(--line); }
.rsec-cta { margin-top: clamp(28px, 4vw, 44px); }
.rcard-offer { border-color: var(--green); border-width: 3px; }

/* ===== RTT build-out: stat line, use-case grid, pricing (2026-07-06) ===== */
.statline { display:grid; grid-template-columns:1fr; gap:1px; background:var(--line); border:2px solid var(--line); margin-top:8px; }
@media(min-width:720px){ .statline{ grid-template-columns:repeat(3,1fr);} }
.statline > div { background:#fff; padding:clamp(22px,3vw,34px); }
.statline b { display:block; font-size:clamp(30px,4vw,48px); font-weight:700; line-height:1; color:var(--blue); letter-spacing:-0.02em; }
.statline span { display:block; margin-top:8px; font-size:14px; color:var(--muted); }
.statline .src { font-size:11px; letter-spacing:0.08em; text-transform:uppercase; color:var(--muted); }

.rgrid3 { display:grid; border:2px solid var(--line); }
@media(min-width:720px){ .rgrid3{ grid-template-columns:repeat(2,1fr);} }
@media(min-width:1040px){ .rgrid3{ grid-template-columns:repeat(3,1fr);} }
.rgrid3 .rcard { margin:-1px; }

.pricing { display:grid; gap:clamp(14px,1.8vw,20px); }
@media(min-width:820px){ .pricing{ grid-template-columns:repeat(3,1fr);} }
.price { background:#fff; border:2px solid var(--line); padding:clamp(26px,3.4vw,42px); display:flex; flex-direction:column; }
.price.featured { background:var(--mist); border:3px solid var(--green); }
.price-tag { font-size:11px; font-weight:700; letter-spacing:0.16em; text-transform:uppercase; color:var(--green-deep); margin-bottom:16px; }
.price-amt { font-weight:700; font-size:clamp(38px,4.6vw,60px); line-height:1; letter-spacing:-0.02em; color:var(--blue); font-variant-numeric:tabular-nums; }
.price-amt small { font-size:0.3em; letter-spacing:0; color:var(--muted); font-weight:600; }
.price h3 { font-size:clamp(20px,2.2vw,26px); margin:14px 0 6px; }
.price p { font-size:14.5px; color:var(--muted); margin-bottom:18px; }
.price ul { list-style:none; display:flex; flex-direction:column; gap:9px; margin-top:auto; }
.price li { font-size:14px; color:var(--ink); padding-left:22px; position:relative; }
.price li::before { content:"✓"; position:absolute; left:0; color:var(--green-deep); font-weight:700; }
.price-note { margin-top:clamp(20px,3vw,30px); font-size:14px; color:var(--muted); }
.price-note b { color:var(--ink); }
.price-note a { color: var(--blue); font-weight: 700; border-bottom: 2px solid var(--green); }
.price-note a:hover { color: var(--green-deep); }

/* RTT logo integrated into hero, removed from nav (Chandler 2026-07-06) */
.rhero-logo { width: clamp(200px, 27vw, 320px); height: auto; margin-bottom: clamp(24px, 4vh, 42px); margin-top: -6px; }

/* Dedicated program/pricing page */
.program-hero .rsub { max-width: 700px; }
.program-offer {
  display: grid;
  gap: clamp(22px, 3vw, 36px);
  background: #fff;
  border: 3px solid var(--green);
  padding: clamp(26px, 3.5vw, 44px);
}
@media (min-width: 820px) { .program-offer { grid-template-columns: 0.8fr 1.2fr; align-items: start; } }
.program-offer p { color: var(--muted); margin-top: 14px; max-width: 360px; }
.checklist {
  list-style: none;
  display: grid;
  gap: 12px;
}
.checklist li {
  position: relative;
  padding-left: 26px;
  color: var(--ink);
  font-size: 15px;
}
.checklist li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--green-deep);
  font-weight: 700;
}
.program-highlight {
  margin-top: 16px;
  display: grid;
  gap: 6px;
  border: 2px solid var(--line);
  background: #fff;
  padding: clamp(18px, 2.4vw, 28px);
}
.program-highlight b {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--green-deep);
}
.program-highlight span { color: var(--muted); }
.pricing-program .price { gap: 0; }
.price-link {
  display: inline-flex;
  align-items: center;
  margin-top: 22px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-bottom: 2px solid transparent;
  transition: border-color 0.1s linear, color 0.1s linear;
}
.price-link:hover { color: var(--green-deep); border-bottom-color: var(--green); }