/* RiffJet: vintage tube amp design system */
@import url('https://fonts.googleapis.com/css2?family=Bitter:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&display=swap');

:root{
  --bg:#130e09;
  --bg-alt:#1b130a;
  --bg-card:#20160b;
  --fg:#f3e8d6;
  --fg-dim:#c7ad8b;
  --fg-faint:#8a7357;
  --accent:#d98d3f;
  --accent-soft:#a66f38;
  --line:#3a2c17;
  --serif:'Bitter', Georgia, 'Times New Roman', serif;
  --sans:-apple-system,BlinkMacSystemFont,'Segoe UI',Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:radial-gradient(ellipse 110% 70% at 50% -8%, #24190c 0%, var(--bg) 58%);
  color:var(--fg);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit}
img{max-width:100%;display:block}
.wrap{max-width:1080px;margin:0 auto;padding:0 32px}
.narrow{max-width:740px;margin:0 auto;padding:0 32px}

header.site{position:relative;z-index:10;padding:34px 0;border-bottom:1px solid transparent}
header.site .wrap{display:flex;align-items:center;justify-content:space-between}
.wordmark{font-family:var(--serif);font-weight:700;font-size:1.3rem;letter-spacing:.01em;text-decoration:none;color:var(--fg)}
.wordmark em{color:var(--accent);font-style:italic;font-weight:400}
nav.primary{display:flex;gap:34px}
nav.primary a{font-size:.8rem;letter-spacing:.13em;text-transform:uppercase;color:var(--fg-dim);text-decoration:none;transition:color .3s}
nav.primary a:hover{color:var(--accent)}

.hero{min-height:90vh;display:flex;flex-direction:column;justify-content:center;position:relative;padding:70px 0 60px}
.hero::before{content:"";position:absolute;inset:0;background:
  radial-gradient(circle at 20% 25%, rgba(217,141,63,.13), transparent 42%),
  radial-gradient(circle at 85% 75%, rgba(217,141,63,.08), transparent 40%);
  pointer-events:none}
.eyebrow{font-size:.78rem;letter-spacing:.22em;text-transform:uppercase;color:var(--accent-soft);margin-bottom:26px;opacity:0;animation:fadeUp .9s ease forwards .1s}
.hero-title{font-family:var(--serif);font-weight:700;font-size:clamp(2.5rem,7vw,5.4rem);line-height:1.05;letter-spacing:-.01em;max-width:15ch}
.hero-title .line{display:block;overflow:hidden;padding-bottom:.1em}
.hero-title .line span{display:inline-block;opacity:0;transform:translateY(.5em) scale(.96);animation:ampWarm 1.1s cubic-bezier(.22,1,.36,1) forwards}
.hero-title .line:nth-child(1) span{animation-delay:.15s}
.hero-title .line:nth-child(2) span{animation-delay:.4s}
.hero-title .line:nth-child(3) span{animation-delay:.65s}
.hero-title i{font-style:italic;color:var(--accent);font-weight:400}
@keyframes ampWarm{0%{opacity:0;transform:translateY(.5em) scale(.96);text-shadow:0 0 0 rgba(217,141,63,0)}55%{opacity:1;text-shadow:0 0 26px rgba(217,141,63,.45)}100%{opacity:1;transform:translateY(0) scale(1);text-shadow:0 0 0 rgba(217,141,63,0)}}
@keyframes fadeUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}
.hero-sub{margin-top:32px;max-width:46ch;font-size:1.1rem;color:var(--fg-dim);opacity:0;animation:fadeUp .9s ease forwards 1.05s}
.hero-cta{margin-top:44px;display:flex;gap:20px;align-items:center;flex-wrap:wrap;opacity:0;animation:fadeUp .9s ease forwards 1.25s}

.btn{display:inline-block;padding:15px 30px;background:var(--accent);color:#160f07;font-size:.85rem;letter-spacing:.07em;text-transform:uppercase;text-decoration:none;border:1px solid var(--accent);cursor:pointer;font-family:var(--sans);font-weight:700;transition:transform .3s ease, background .3s ease}
.btn:hover{background:#e9a25a;transform:translateY(-2px)}
.btn-ghost{display:inline-block;padding:14px 26px;color:var(--fg-dim);text-decoration:none;font-size:.85rem;letter-spacing:.07em;text-transform:uppercase;border:1px solid var(--line);transition:color .3s,border-color .3s}
.btn-ghost:hover{color:var(--accent);border-color:var(--accent-soft)}

.scrollcue{position:absolute;bottom:26px;left:32px;font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;color:var(--fg-faint);display:flex;align-items:center;gap:12px}
.scrollcue::after{content:"";width:1px;height:34px;background:linear-gradient(var(--accent-soft),transparent);animation:pulse 2.2s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:.25}50%{opacity:1}}

.reveal{opacity:0;transform:translateY(26px);transition:opacity .9s cubic-bezier(.22,1,.36,1), transform .9s cubic-bezier(.22,1,.36,1)}
.reveal.is-visible{opacity:1;transform:translateY(0)}
.reveal-delay-1.is-visible{transition-delay:.12s}
.reveal-delay-2.is-visible{transition-delay:.24s}

section{padding:130px 0}
section.tight{padding:88px 0}
.section-label{font-size:.78rem;letter-spacing:.22em;text-transform:uppercase;color:var(--accent-soft);margin-bottom:22px}
h2.display{font-family:var(--serif);font-weight:700;font-size:clamp(1.9rem,3.6vw,2.9rem);line-height:1.16;letter-spacing:-.005em;max-width:16ch}
.lede{margin-top:26px;font-size:1.15rem;color:var(--fg-dim);max-width:52ch}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start}
.stat-line{font-family:var(--serif);font-style:italic;font-size:1.35rem;color:var(--fg-dim);max-width:32ch;line-height:1.5;border-left:2px solid var(--accent-soft);padding-left:28px;margin-top:20px}
.body-col p{margin-top:20px;color:var(--fg-dim)}
.body-col p:first-child{margin-top:0}

.card{display:block;text-decoration:none;color:var(--fg);background:var(--bg-card);border:1px solid var(--line);padding:48px;transition:border-color .35s, transform .35s}
.card:hover{border-color:var(--accent-soft);transform:translateY(-4px)}
.card .tag{font-size:.75rem;letter-spacing:.16em;text-transform:uppercase;color:var(--accent-soft)}
.card h3{font-family:var(--serif);font-weight:700;font-size:1.65rem;margin-top:16px;line-height:1.3}
.card p{margin-top:14px;color:var(--fg-dim)}
.card .read{margin-top:26px;font-size:.82rem;letter-spacing:.1em;text-transform:uppercase;color:var(--accent)}

.lead-section{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
form.lead-form{margin-top:38px;display:flex;gap:14px;max-width:520px;flex-wrap:wrap}
form.lead-form input[type=email]{flex:1;min-width:220px;background:transparent;border:none;border-bottom:1px solid var(--line);color:var(--fg);font-size:1rem;padding:14px 4px;font-family:var(--sans)}
form.lead-form input[type=email]:focus{outline:none;border-color:var(--accent)}
form.lead-form input::placeholder{color:var(--fg-faint)}
form.lead-form button{background:var(--accent);color:#160f07;border:1px solid var(--accent);padding:14px 28px;font-size:.85rem;letter-spacing:.07em;text-transform:uppercase;cursor:pointer;font-weight:700;transition:background .3s}
form.lead-form button:hover{background:#e9a25a}
.lead-fine{margin-top:18px;font-size:.82rem;color:var(--fg-faint)}

footer.site{padding:60px 0 46px;border-top:1px solid var(--line)}
footer.site .wrap{display:flex;flex-direction:column;gap:14px}
.finelinks{display:flex;gap:24px;font-size:.82rem}
.finelinks a{color:var(--fg-dim);text-decoration:none}
.finelinks a:hover{color:var(--accent)}
.fineprint{font-size:.78rem;color:var(--fg-faint)}
.fineprint a{color:var(--fg-faint);text-decoration:underline}

.crumbs{font-size:.8rem;color:var(--fg-faint);margin:48px 0 30px}
.crumbs a{color:var(--fg-faint);text-decoration:none}
.crumbs a:hover{color:var(--accent)}
article h1{font-family:var(--serif);font-weight:700;font-size:clamp(2rem,4.4vw,3.2rem);line-height:1.15;letter-spacing:-.005em}
.pmeta{margin-top:20px;font-size:.85rem;color:var(--fg-faint)}
.disclosure{margin-top:14px;font-size:.82rem;color:var(--fg-faint);font-style:italic}
.takeaway{margin-top:34px;padding:26px 30px;background:var(--bg-card);border-left:2px solid var(--accent);font-size:1.05rem;color:var(--fg-dim)}
.takeaway strong{color:var(--fg)}
article h2{font-family:var(--serif);font-weight:700;font-size:clamp(1.45rem,3vw,2rem);margin-top:62px;margin-bottom:22px}
article p{margin-top:18px;color:var(--fg-dim);font-size:1.05rem}
article ul,article ol{margin-top:18px;padding-left:22px;color:var(--fg-dim)}
article li{margin-top:10px}
article strong{color:var(--fg)}
.tablewrap{margin-top:34px;overflow-x:auto;border:1px solid var(--line)}
table{width:100%;border-collapse:collapse;font-size:.92rem;min-width:520px}
th,td{text-align:left;padding:16px 18px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;color:var(--accent-soft);font-weight:700}
tr:last-child td{border-bottom:none}
td{color:var(--fg-dim)}
.faqbox{margin-top:62px}
.faqbox h2{margin-top:0}
details{border-top:1px solid var(--line);padding:22px 0}
details:last-of-type{border-bottom:1px solid var(--line)}
summary{cursor:pointer;font-size:1.05rem;color:var(--fg);list-style:none;display:flex;justify-content:space-between;align-items:center;font-family:var(--serif);font-weight:600}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";color:var(--accent);font-size:1.3rem;margin-left:20px}
details[open] summary::after{content:"\2212"}
details p{margin-top:14px;color:var(--fg-dim)}
.closing{margin-top:56px;font-size:1.1rem;font-family:var(--serif);color:var(--fg-dim);font-style:italic}
.closing a{color:var(--accent);font-style:normal;text-decoration:underline}

.page-hero{padding:150px 0 60px}
.page-hero h1{font-family:var(--serif);font-weight:700;font-size:clamp(2.1rem,5vw,3.4rem)}
.legal p, .legal li{color:var(--fg-dim);margin-top:16px}
.legal h2{font-family:var(--serif);font-weight:700;margin-top:44px;margin-bottom:12px;font-size:1.4rem}
.legal ul{padding-left:22px}
.error-hero{min-height:80vh;display:flex;flex-direction:column;justify-content:center;align-items:flex-start}
.error-hero .big{font-family:var(--serif);font-weight:700;font-size:clamp(4rem,14vw,9rem);color:var(--accent);line-height:1}

@media(max-width:820px){
  .grid-2{grid-template-columns:1fr;gap:40px}
  section{padding:90px 0}
  .wrap,.narrow{padding:0 22px}
}