/* ============================================================
   The Arena — Sales Training Methodology site
   Design tokens
   ============================================================ */
:root{
  --bg: #0a0d12;
  --bg-elev: #11151d;
  --bg-elev-2: #161b25;
  --border: rgba(255,255,255,0.09);
  --border-soft: rgba(255,255,255,0.05);
  --text: #eef0f4;
  --text-dim: #a7aec0;
  --text-dimmer: #757e93;
  --accent: #cda349;
  --accent-strong: #e6c069;
  --accent-ink: #1a1406;
  --teal: #5fc9c1;
  --danger: #e0725f;
  --ok: #6bbf8a;
  --warn: #d8ad4d;
  --radius: 14px;
  --radius-sm: 8px;
  --max: 1120px;
  --shadow: 0 20px 60px -20px rgba(0,0,0,0.6);
  font-size: 16px;
}

*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  background: radial-gradient(1200px 800px at 80% -10%, #141924 0%, var(--bg) 55%) fixed;
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img{max-width:100%;display:block;}
a{color: var(--accent-strong); text-decoration:none;}
a:hover{text-decoration:underline;}
h1,h2,h3,h4{
  font-family: inherit;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0 0 0.5em;
  font-weight: 700;
}
h1{font-size: clamp(2.1rem, 4.5vw, 3.4rem); letter-spacing:-0.02em;}
h2{font-size: clamp(1.6rem, 3vw, 2.2rem);}
h3{font-size: 1.25rem;}
p{margin:0 0 1em; color: var(--text-dim);}
.lede{font-size:1.15rem; color: var(--text); }
.container{max-width: var(--max); margin: 0 auto; padding: 0 24px;}
.eyebrow{
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--accent);
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-bottom: 14px;
}
.eyebrow::before{content:""; width:18px; height:2px; background: var(--accent); display:inline-block;}

/* ---------- Nav ---------- */
.site-header{
  position: sticky; top:0; z-index: 50;
  background: rgba(10,13,18,0.78);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-soft);
}
.nav{
  display:flex; align-items:center; justify-content:space-between;
  padding: 16px 24px; max-width: var(--max); margin:0 auto;
}
.brand{
  display:flex; align-items:center; gap:10px;
  font-weight:800; font-size:1rem; color: var(--text); letter-spacing: 0.01em;
}
.brand .mark{
  width:30px; height:30px; border-radius:8px;
  background: linear-gradient(145deg, var(--accent), #8a6a1f);
  display:flex; align-items:center; justify-content:center;
  font-weight:900; color: var(--accent-ink); font-size: 0.85rem;
}
.brand small{display:block; font-weight:500; color: var(--text-dimmer); font-size:0.68rem; letter-spacing:0.06em; text-transform:uppercase;}
.nav-links{display:flex; align-items:center; gap: 28px;}
.nav-links a{
  color: var(--text-dim); font-size:0.92rem; font-weight:600;
}
.nav-links a:hover{color: var(--text); text-decoration:none;}
.nav-links a.current{color: var(--accent-strong);}
.btn{
  display:inline-flex; align-items:center; gap:8px;
  padding: 10px 18px; border-radius: 999px;
  font-weight:700; font-size:0.9rem;
  background: var(--accent); color: var(--accent-ink);
  border: 1px solid transparent; cursor:pointer;
}
.btn:hover{background: var(--accent-strong); text-decoration:none;}
.btn.ghost{
  background: transparent; color: var(--text); border: 1px solid var(--border);
}
.btn.ghost:hover{border-color: var(--accent); color: var(--accent-strong);}
.nav-toggle{display:none; background:none; border:none; color:var(--text); font-size:1.5rem; cursor:pointer;}

@media (max-width: 860px){
  .nav-links{
    position:fixed; inset: 66px 0 0 0; background: var(--bg);
    flex-direction:column; align-items:flex-start; padding: 24px;
    gap: 18px; transform: translateY(-8px); opacity:0; pointer-events:none;
    transition: all .18s ease; border-top:1px solid var(--border-soft);
  }
  .nav-links.open{opacity:1; pointer-events:all; transform:translateY(0);}
  .nav-toggle{display:block;}
  .nav-links .btn{margin-top:8px;}
}

/* ---------- Hero ---------- */
.hero{
  padding: 96px 0 64px;
  border-bottom: 1px solid var(--border-soft);
}
.hero-grid{display:grid; grid-template-columns: 1.1fr 0.9fr; gap:56px; align-items:center;}
@media (max-width: 900px){ .hero-grid{grid-template-columns:1fr; gap:32px;} }
.hero h1{margin-bottom:20px;}
.hero .lede{max-width: 540px; margin-bottom: 32px;}
.hero-ctas{display:flex; gap:14px; flex-wrap:wrap;}

.stat-card{
  background: linear-gradient(160deg, var(--bg-elev), var(--bg-elev-2));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
}
.stat-grid{display:grid; grid-template-columns: 1fr 1fr; gap: 18px;}
.stat{padding: 14px 0; border-bottom: 1px solid var(--border-soft);}
.stat:nth-last-child(-n+2){border-bottom:none;}
.stat .num{font-size:1.9rem; font-weight:800; color:var(--accent-strong); letter-spacing:-0.02em;}
.stat .label{font-size:0.8rem; color: var(--text-dimmer); text-transform:uppercase; letter-spacing:0.05em; margin-top:2px;}

/* ---------- Sections ---------- */
section{padding: 76px 0;}
section.tight{padding: 48px 0;}
.section-head{max-width: 720px; margin-bottom: 44px;}
.band{border-top:1px solid var(--border-soft);}
.band.alt{background: linear-gradient(180deg, rgba(255,255,255,0.015), transparent);}

.grid-3{display:grid; grid-template-columns: repeat(3,1fr); gap: 22px;}
.grid-2{display:grid; grid-template-columns: repeat(2,1fr); gap: 22px;}
@media (max-width: 860px){ .grid-3{grid-template-columns:1fr;} .grid-2{grid-template-columns:1fr;} }

.card{
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  transition: border-color .15s ease, transform .15s ease;
}
.card:hover{border-color: rgba(205,163,73,0.35); transform: translateY(-2px);}
.card .tag{
  display:inline-block; font-size:0.68rem; font-weight:800; letter-spacing:0.08em;
  text-transform:uppercase; color: var(--accent); background: rgba(205,163,73,0.1);
  padding: 4px 10px; border-radius:999px; margin-bottom:14px;
}
.card h3{margin-bottom:8px;}
.card p{margin-bottom:0; font-size:0.95rem;}
.card a.card-link{font-size:0.85rem; font-weight:700; margin-top:14px; display:inline-block;}

.layer-num{
  font-size:0.75rem; font-weight:800; color: var(--accent-ink);
  background: var(--accent); width:26px; height:26px; border-radius:7px;
  display:inline-flex; align-items:center; justify-content:center; margin-right:10px;
}

/* ---------- Tables ---------- */
table{width:100%; border-collapse: collapse; margin: 18px 0 28px; font-size:0.92rem;}
th, td{text-align:left; padding: 12px 14px; border-bottom: 1px solid var(--border-soft); vertical-align:top;}
th{color: var(--text-dimmer); font-size:0.72rem; text-transform:uppercase; letter-spacing:0.05em; font-weight:700;}
td{color: var(--text-dim);}
tr:hover td{color: var(--text);}
.table-wrap{overflow-x:auto; border:1px solid var(--border); border-radius: var(--radius); background: var(--bg-elev);}
.table-wrap table{margin:0;}
.table-wrap th, .table-wrap td{border-bottom:1px solid var(--border-soft); padding:14px 16px;}
.table-wrap tr:last-child td{border-bottom:none;}

/* ---------- Act / phase blocks ---------- */
.act-block{
  border-left: 3px solid var(--accent);
  padding: 4px 0 4px 22px;
  margin-bottom: 34px;
}
.act-block.act-2{border-left-color: var(--teal);}
.act-block.act-3{border-left-color: var(--warn);}
.act-block .kicker{color: var(--text-dimmer); font-size:0.78rem; text-transform:uppercase; letter-spacing:0.06em; font-weight:700; margin-bottom:6px;}
.phase-pill{
  display:inline-block; font-size:0.72rem; font-weight:700; padding:3px 10px;
  border-radius:999px; border:1px solid var(--border); color:var(--text-dim); margin:2px 6px 2px 0;
}

/* ---------- Tabs (conversation tree zones) ---------- */
.tabs{display:flex; gap:8px; flex-wrap:wrap; margin-bottom: 28px; border-bottom:1px solid var(--border-soft); padding-bottom: 18px;}
.tab-btn{
  background: var(--bg-elev); border:1px solid var(--border); color: var(--text-dim);
  padding: 10px 16px; border-radius: 999px; font-weight:700; font-size:0.88rem; cursor:pointer;
}
.tab-btn.active{background: var(--accent); color: var(--accent-ink); border-color: var(--accent);}
.tab-panel{display:none;}
.tab-panel.active{display:block; animation: fade .2s ease;}
@keyframes fade{from{opacity:0; transform:translateY(4px);} to{opacity:1; transform:translateY(0);}}

.zone-open{
  background: var(--bg-elev-2); border:1px solid var(--border); border-radius: var(--radius);
  padding: 18px 22px; margin-bottom: 26px; font-size:1.02rem; color: var(--text);
}
.zone-open .lbl{display:block; font-size:0.7rem; text-transform:uppercase; letter-spacing:0.08em; color:var(--accent); font-weight:800; margin-bottom:6px;}

.branch{
  border: 1px solid var(--border); border-radius: var(--radius);
  margin-bottom: 16px; overflow:hidden; background: var(--bg-elev);
}
.branch summary{
  list-style:none; cursor:pointer; padding: 16px 20px; font-weight:700;
  display:flex; align-items:center; justify-content:space-between; gap:12px;
}
.branch summary::-webkit-details-marker{display:none;}
.branch summary .chev{color:var(--text-dimmer); transition: transform .15s ease; flex-shrink:0;}
.branch[open] summary .chev{transform: rotate(90deg);}
.branch .body{padding: 0 20px 20px; border-top:1px solid var(--border-soft);}
.branch .body p{margin: 14px 0 0;}
.qa{color:var(--text-dim); font-size:0.94rem;}
.qa b{color:var(--text);}
.premise{
  background: rgba(95,201,193,0.08); border-left:3px solid var(--teal);
  padding: 10px 14px; margin:14px 0; font-size:0.92rem; border-radius: 0 8px 8px 0;
}
.strike{
  background: rgba(205,163,73,0.08); border-left:3px solid var(--accent);
  padding: 10px 14px; margin:10px 0; font-size:0.92rem; border-radius: 0 8px 8px 0;
}
.strike b{color:var(--accent-strong);}

/* ---------- Method steps ---------- */
.steps{display:flex; flex-direction:column; gap:0;}
.step{display:grid; grid-template-columns: 46px 1fr; gap:18px; padding: 22px 0; border-bottom:1px solid var(--border-soft);}
.step:last-child{border-bottom:none;}
.step .idx{
  width:46px; height:46px; border-radius:12px; background:var(--bg-elev-2); border:1px solid var(--border);
  display:flex; align-items:center; justify-content:center; font-weight:800; color:var(--accent-strong);
}

/* ---------- Case study ---------- */
.score-row{display:flex; align-items:center; gap:22px; margin: 24px 0;}
.score-badge{
  width:96px; height:96px; border-radius:50%; display:flex; align-items:center; justify-content:center;
  flex-direction:column; border: 4px solid var(--danger); background: rgba(224,114,95,0.08);
}
.score-badge.good{border-color: var(--ok); background: rgba(107,191,138,0.08);}
.score-badge .pct{font-weight:800; font-size:1.3rem;}
.score-badge .tag{font-size:0.62rem; text-transform:uppercase; color:var(--text-dimmer);}
.arrow-sep{color:var(--text-dimmer); font-size:1.6rem;}
.zone-grid{display:grid; grid-template-columns: repeat(4,1fr); gap:14px; margin: 20px 0 30px;}
@media (max-width: 760px){ .zone-grid{grid-template-columns: repeat(2,1fr);} }
.zone-chip{
  border:1px solid var(--border); border-radius: var(--radius-sm); padding: 14px; text-align:center; background: var(--bg-elev);
}
.zone-chip .status{font-weight:800; font-size:0.82rem; margin-top:6px;}
.zone-chip.blank .status{color: var(--danger);}
.zone-chip.partial .status{color: var(--warn);}
.zone-chip.full .status{color: var(--ok);}
blockquote{
  border-left: 3px solid var(--border); margin: 18px 0; padding: 4px 20px; color: var(--text-dim); font-style: italic;
}

/* ---------- CTA / Contact ---------- */
.cta-band{
  background: linear-gradient(135deg, #171308, #0a0d12 60%);
  border: 1px solid rgba(205,163,73,0.25);
  border-radius: 20px;
  padding: 56px;
  display:grid; grid-template-columns: 1.2fr 0.8fr; gap:36px; align-items:center;
}
@media (max-width: 860px){ .cta-band{grid-template-columns:1fr; padding: 34px;} }
.form-grid{display:grid; gap:12px;}
.form-grid input, .form-grid textarea{
  background: var(--bg-elev); border:1px solid var(--border); border-radius: var(--radius-sm);
  padding: 12px 14px; color: var(--text); font-family:inherit; font-size:0.95rem;
}
.form-grid input:focus, .form-grid textarea:focus{outline:none; border-color: var(--accent);}
.form-grid label{font-size:0.78rem; color: var(--text-dimmer); text-transform:uppercase; letter-spacing:0.05em; font-weight:700; margin-bottom:-4px;}

/* ---------- Footer ---------- */
footer{border-top:1px solid var(--border-soft); padding: 40px 0 60px; margin-top: 40px;}
.footer-grid{display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:16px;}
.footer-links{display:flex; gap:22px;}
.footer-links a{color:var(--text-dimmer); font-size:0.85rem;}
.copyright{color: var(--text-dimmer); font-size:0.82rem;}

.toc{display:flex; flex-wrap:wrap; gap:10px; margin: 8px 0 0;}
.toc a{
  border:1px solid var(--border); border-radius:999px; padding:8px 14px; font-size:0.85rem; font-weight:600; color:var(--text-dim);
}
.toc a:hover{border-color:var(--accent); color:var(--accent-strong); text-decoration:none;}

.pagehead{padding: 64px 0 40px; border-bottom:1px solid var(--border-soft);}
.pagehead h1{margin-bottom:14px;}
.pagehead .lede{max-width:680px; margin-bottom:0;}

.note{
  font-size:0.85rem; color: var(--text-dimmer); border-top:1px dashed var(--border); padding-top:14px; margin-top: 30px;
}