/* Rafael Trading — "trading floor" v3. Dark market theme, full-bleed imagery.
   Instrument Serif (display) + IBM Plex Mono (data), self-hosted. Zero JS. */

@font-face {
  font-family: "Instrument Serif";
  src: url("../fonts/InstrumentSerif-400.woff2") format("woff2");
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "Instrument Serif";
  src: url("../fonts/InstrumentSerif-400i.woff2") format("woff2");
  font-weight: 400; font-style: italic; font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("../fonts/IBMPlexMono-400.woff2") format("woff2");
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("../fonts/IBMPlexMono-500.woff2") format("woff2");
  font-weight: 500; font-style: normal; font-display: swap;
}

:root {
  --bg: #0a0e12;
  --bg-2: #0e141b;
  --panel: #121a23;
  --line: #1f2a36;
  --text: #e8eef4;
  --text-soft: #9fb0bf;
  --text-faint: #5c6b78;
  --green: #2ee06f;
  --green-deep: #14532d;
  --red: #f0525f;
  --serif: "Instrument Serif", Georgia, serif;
  --mono: "IBM Plex Mono", "SF Mono", Menlo, monospace;
  --pad: clamp(20px, 5.5vw, 88px);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--serif);
  font-size: 19px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.mono { font-family: var(--mono); }
.dim { color: var(--text-faint); }
.center { text-align: center; margin-left: auto; margin-right: auto; }
::selection { background: var(--green); color: var(--bg); }

/* ---------- topbar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px var(--pad);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--mono); font-size: 13.5px; font-weight: 500;
  letter-spacing: 0.14em; color: var(--text); text-decoration: none;
}
.brand svg { width: 22px; height: 22px; color: var(--green); }
.topbar nav { display: flex; gap: 26px; align-items: center; }
.topbar nav a {
  font-family: var(--mono); font-size: 13px; letter-spacing: 0.05em;
  color: var(--text-soft); text-decoration: none;
}
.topbar nav a:hover { color: var(--green); }
.topbar .cta {
  color: var(--bg); background: var(--green);
  padding: 8px 16px; border-radius: 4px; font-weight: 500;
}
.topbar .cta:hover { color: var(--bg); filter: brightness(1.12); }

.langs {
  display: inline-flex; gap: 2px;
  border: 1px solid var(--line); border-radius: 4px;
  padding: 3px; margin: 0 4px;
}
.langs a {
  padding: 4px 9px !important; border-radius: 3px;
  font-size: 11.5px !important; letter-spacing: 0.08em;
}
.langs a.on { background: var(--line); color: var(--text) !important; }
.langs a:hover { color: var(--green); }

/* ---------- hero ---------- */
.hero { position: relative; overflow: hidden; }
.hero-bg {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; object-position: center;
  opacity: 0.55;
}
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background:
    linear-gradient(100deg, rgba(10,14,18,0.96) 22%, rgba(10,14,18,0.55) 60%, rgba(10,14,18,0.25)),
    linear-gradient(to top, var(--bg) 0%, transparent 30%);
}
.hero-inner {
  position: relative; z-index: 2;
  padding: clamp(84px, 15vh, 170px) var(--pad) 90px;
  max-width: 980px;
}
.eyebrow {
  font-size: 12px; letter-spacing: 0.22em;
  color: var(--green); margin-bottom: 20px;
}
.hero h1 {
  font-weight: 400;
  font-size: clamp(46px, 8vw, 96px);
  line-height: 1.0;
  letter-spacing: -0.01em;
  opacity: 0; animation: fadeup 0.8s cubic-bezier(0.2,0.7,0.2,1) 0.05s forwards;
}
.hero h1 em { font-style: italic; color: var(--green); }
.lede {
  margin-top: 26px; max-width: 34em;
  font-size: clamp(18px, 1.9vw, 22px); color: var(--text-soft);
  opacity: 0; animation: fadeup 0.8s cubic-bezier(0.2,0.7,0.2,1) 0.18s forwards;
}
.hero-actions {
  display: flex; gap: 14px; flex-wrap: wrap; margin-top: 38px;
  opacity: 0; animation: fadeup 0.8s cubic-bezier(0.2,0.7,0.2,1) 0.3s forwards;
}
@keyframes fadeup {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  .hero h1, .lede, .hero-actions { animation: none; opacity: 1; }
}

.btn {
  display: inline-block;
  font-family: var(--mono); font-size: 14px; font-weight: 500;
  letter-spacing: 0.04em; text-decoration: none;
  color: var(--bg); background: var(--green);
  padding: 13px 26px; border-radius: 5px;
  transition: transform 0.15s, filter 0.15s;
}
.btn:hover { transform: translateY(-2px); filter: brightness(1.12); }
.btn.ghost {
  color: var(--text); background: transparent;
  border: 1px solid var(--line);
}
.btn.ghost:hover { border-color: var(--green); color: var(--green); }

.tickerline {
  position: relative; z-index: 2;
  display: flex; gap: 14px; flex-wrap: wrap; align-items: baseline;
  padding: 16px var(--pad);
  border-top: 1px solid var(--line);
  font-size: 11.5px; letter-spacing: 0.14em; color: var(--text-faint);
  background: color-mix(in srgb, var(--bg) 70%, transparent);
}
.tickerline i { font-style: normal; color: var(--line); }
.tickerline .up { color: var(--green); }

/* ---------- split sections ---------- */
.split {
  display: grid; grid-template-columns: 1.05fr 1fr;
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
  padding: clamp(70px, 11vh, 120px) var(--pad);
}
.split.reverse .split-text { order: 2; }
.split.reverse .split-img { order: 1; }

.split h2, .method h2, .contact h2 {
  font-weight: 400;
  font-size: clamp(34px, 4.4vw, 56px);
  line-height: 1.05;
  margin-bottom: 24px;
}
.split p { color: var(--text-soft); max-width: 34em; }
.split p + p { margin-top: 16px; }
.split-text .btn { margin-top: 28px; }

.split-text a:not(.btn) {
  color: var(--text);
  text-decoration: underline; text-decoration-color: var(--green);
  text-decoration-thickness: 1.5px; text-underline-offset: 3px;
}
.split-text a:not(.btn):hover { color: var(--green); }

.aside { margin-top: 24px; font-size: 12.5px; }

.split-img { position: relative; }
.split-img img {
  width: 100%; height: auto; display: block;
  border-radius: 8px;
  border: 1px solid var(--line);
  box-shadow: 0 30px 60px -30px rgba(0,0,0,0.8);
}
.split-img figcaption {
  margin-top: 12px; font-size: 11.5px; letter-spacing: 0.05em;
  color: var(--text-faint);
}

.tick.up { color: var(--green); font-size: 10px; }

/* ---------- method cards ---------- */
.method {
  padding: clamp(70px, 11vh, 120px) var(--pad);
  background:
    radial-gradient(900px 400px at 50% 0%, rgba(46,224,111,0.05), transparent),
    var(--bg-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.method .sub { color: var(--text-soft); max-width: 36em; margin-bottom: 52px; }
.cards {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 20px; max-width: 1180px; margin: 0 auto;
}
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 30px 28px 34px;
  transition: transform 0.2s, border-color 0.2s;
}
.card:hover { transform: translateY(-4px); border-color: var(--green-deep); }
.cardnum { font-size: 12px; color: var(--green); letter-spacing: 0.1em; }
.card h3 {
  font-weight: 400; font-size: 26px; margin: 14px 0 12px;
}
.card p { font-size: 15.5px; color: var(--text-soft); }

/* ---------- mentorship program list ---------- */
.program { list-style: none; margin: 26px 0 6px; }
.program li {
  padding: 14px 0 14px 26px; position: relative;
  color: var(--text-soft); max-width: 32em;
  border-bottom: 1px solid var(--line);
}
.program li:first-child { border-top: 1px solid var(--line); }
.program li::before {
  content: "▲"; position: absolute; left: 2px; top: 18px;
  font-size: 10px; color: var(--green);
}
.program strong { color: var(--text); font-weight: inherit; font-style: italic; }

.smallprint { margin-top: 22px; font-size: 11.5px; color: var(--text-faint); }

/* ---------- contact ---------- */
.contact {
  text-align: center;
  padding: clamp(80px, 13vh, 140px) var(--pad);
  background:
    radial-gradient(700px 320px at 50% 100%, rgba(46,224,111,0.07), transparent),
    var(--bg);
}
.contact .eyebrow { margin-bottom: 14px; }
.bigmail { margin-top: 10px; }
.bigmail a {
  font-family: var(--serif); font-style: italic;
  font-size: clamp(28px, 5vw, 60px);
  color: var(--text); text-decoration: underline;
  text-decoration-color: var(--green); text-decoration-thickness: 2.5px;
  text-underline-offset: 8px;
  overflow-wrap: anywhere;
  transition: color 0.2s;
}
.bigmail a:hover { color: var(--green); }
.socials { margin-top: 30px; }
.socials a {
  font-family: var(--mono); font-size: 13.5px; letter-spacing: 0.06em;
  color: var(--text-soft); text-decoration: none;
}
.socials a:hover { color: var(--green); }

/* ---------- footer ---------- */
.foot { border-top: 1px solid var(--line); background: var(--bg-2); }
.foot-inner {
  padding: 26px var(--pad) 38px;
  display: flex; flex-direction: column; gap: 8px;
  font-size: 11px; letter-spacing: 0.04em; color: var(--text-faint);
  max-width: 1000px;
}

/* ---------- responsive ---------- */
@media (max-width: 860px) {
  .topbar nav > a:not(.cta) { display: none; }
  .split { grid-template-columns: 1fr; }
  .split.reverse .split-text { order: 1; }
  .split.reverse .split-img { order: 2; }
  .cards { grid-template-columns: 1fr; }
  .hero-inner { padding-bottom: 60px; }
  .tickerline { display: none; }
}