/* =========================================================
   Kastorinemia — design tokens
   ========================================================= */
:root{
  --bg: #16181d;
  --bg-alt: #1b1e24;
  --panel: #1e2128;
  --panel-raised: #23262e;
  --border: #2c303a;
  --border-soft: #22252c;
  --text: #edeae3;
  --text-muted: #9a978f;
  --text-faint: #6c6a64;
  --accent: #e8a33d;
  --accent-dim: #b9812f;
  --accent-soft: rgba(232,163,61,0.12);
  --accent-soft-strong: rgba(232,163,61,0.22);
  --green: #7fae6f;
  --red: #c76a5f;

  --font-head: "Sora", "Segoe UI", sans-serif;
  --font-body: "Sora", "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;

  --radius-s: 4px;
  --radius-m: 8px;
  --radius-l: 14px;

  --maxw: 1180px;
}

*, *::before, *::after{ box-sizing: border-box; }

html{ scroll-behavior: smooth; }

body{
  margin:0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  background-image:
    radial-gradient(circle at 1px 1px, rgba(255,255,255,0.035) 1px, transparent 0);
  background-size: 26px 26px;
}

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *, *::before, *::after{ animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

img{ max-width:100%; display:block; }
a{ color: inherit; text-decoration:none; }

h1,h2,h3,h4{
  font-family: var(--font-head);
  font-weight: 600;
  line-height: 1.18;
  margin: 0 0 0.5em 0;
  letter-spacing: -0.01em;
}
h1{ font-size: clamp(2.1rem, 4.4vw, 3.4rem); font-weight: 650; }
h2{ font-size: clamp(1.6rem, 2.6vw, 2.2rem); }
h3{ font-size: 1.25rem; }
p{ margin: 0 0 1em 0; color: var(--text-muted); }

.container{
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

section{ padding: 88px 0; }
section + section{ border-top: 1px solid var(--border-soft); }

.eyebrow-label{
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  margin-bottom: 14px;
  display:block;
}

/* focus visibility */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible{
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* =========================================================
   Buttons
   ========================================================= */
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.96rem;
  padding: 13px 24px;
  border-radius: var(--radius-s);
  border: 1px solid transparent;
  cursor:pointer;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.1s ease;
}
.btn:active{ transform: translateY(1px); }
.btn-primary{
  background: var(--accent);
  color: #1b1a16;
}
.btn-primary:hover{ background: #f0ae4d; }
.btn-secondary{
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn-secondary:hover{ border-color: var(--accent); color: var(--accent); }
.btn-block{ width:100%; justify-content:center; }
.btn[disabled]{ opacity:0.5; cursor:not-allowed; }

/* =========================================================
   Header / nav
   ========================================================= */
.site-header{
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(22,24,29,0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-soft);
}
.site-header .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height: 72px;
}
.logo{
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 1.02rem;
  color: var(--text);
  display:flex;
  align-items:center;
  gap:8px;
}
.logo .dot{ color: var(--accent); }
.main-nav{ display:flex; align-items:center; gap: 30px; }
.main-nav a{
  font-size: 0.92rem;
  color: var(--text-muted);
  transition: color 0.15s ease;
}
.main-nav a:hover, .main-nav a.active{ color: var(--text); }
.nav-cta{ display:flex; align-items:center; gap:18px; }

.nav-toggle{
  display:none;
  background:none; border:none; color: var(--text);
  font-size: 1.4rem; cursor:pointer;
}

@media (max-width: 860px){
  .main-nav{
    position:absolute; top:72px; left:0; right:0;
    background: var(--bg-alt);
    border-bottom: 1px solid var(--border);
    flex-direction:column; align-items:flex-start;
    padding: 18px 24px; gap: 16px;
    display:none;
  }
  .main-nav.open{ display:flex; }
  .nav-toggle{ display:block; }
}

/* =========================================================
   Hero — editor window
   ========================================================= */
.hero{
  padding: 90px 0 70px;
}
.hero .container{
  display:grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items:center;
}
@media (max-width: 900px){
  .hero .container{ grid-template-columns: 1fr; }
}
.hero-copy h1{ margin-bottom: 20px; }
.hero-copy p{ font-size: 1.08rem; max-width: 46ch; }
.hero-actions{ display:flex; gap: 14px; margin-top: 28px; flex-wrap:wrap; }
.hero-meta{
  margin-top: 34px;
  display:flex;
  gap: 28px;
  flex-wrap:wrap;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-faint);
}
.hero-meta strong{ color: var(--text); font-weight:600; }

.editor-window{
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-m);
  overflow:hidden;
  box-shadow: 0 24px 60px -30px rgba(0,0,0,0.6);
}
.editor-titlebar{
  display:flex;
  align-items:center;
  gap:8px;
  padding: 12px 16px;
  background: var(--panel-raised);
  border-bottom: 1px solid var(--border);
}
.editor-titlebar .tf-dot{ width:10px; height:10px; border-radius:50%; }
.tf-dot.r{ background:#c76a5f; }
.tf-dot.y{ background:#d9b35c; }
.tf-dot.g{ background:#7fae6f; }
.editor-titlebar .filename{
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-faint);
}
.editor-body{
  padding: 22px 20px 26px;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  min-height: 260px;
}
.editor-line{ display:flex; }
.editor-line .ln{
  width: 26px;
  flex: none;
  color: var(--text-faint);
  user-select:none;
}
.editor-line .code{ white-space:pre-wrap; word-break:break-word; }
.tok-kw{ color:#c99bd6; }
.tok-type{ color: var(--accent); }
.tok-str{ color:#7fae6f; }
.tok-com{ color: var(--text-faint); }
.tok-fn{ color:#7fb0d6; }
.cursor-blink{
  display:inline-block;
  width: 7px; height: 1.05em;
  background: var(--accent);
  margin-left: 2px;
  vertical-align: text-bottom;
  animation: blink 1s steps(1) infinite;
}
@keyframes blink{ 50%{ opacity:0; } }

/* =========================================================
   Section: who we are / mission
   ========================================================= */
.split-block .container{
  display:grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items:start;
}
@media (max-width: 860px){
  .split-block .container{ grid-template-columns: 1fr; }
}
.split-block h2{ margin-bottom: 22px; }
.split-block .lede-text p{ font-size: 1.04rem; color: var(--text); opacity:0.86; }
.split-block .lede-text p:last-of-type{ margin-bottom: 24px; }

/* =========================================================
   Collection / catalog cards
   ========================================================= */
.collection-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 40px;
}
@media (max-width: 900px){ .collection-grid{ grid-template-columns: repeat(2,1fr); } }
@media (max-width: 600px){ .collection-grid{ grid-template-columns: 1fr; } }

.product-card{
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-m);
  padding: 24px;
  display:flex;
  flex-direction:column;
  transition: border-color 0.15s ease;
}
.product-card:hover{ border-color: var(--accent-dim); }
.product-card .p-index{
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-faint);
  margin-bottom: 14px;
}
.product-card .p-cover{
  width:100%; height:120px;
  border-radius: var(--radius-s);
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--accent-soft), transparent 70%), var(--bg-alt);
  border: 1px solid var(--border-soft);
  display:flex; align-items:center; justify-content:center;
}
.product-card h3{ margin-bottom: 6px; }
.product-card .p-tagline{ font-size: 0.9rem; margin-bottom: 14px; }
.product-card .p-foot{
  margin-top:auto;
  display:flex; align-items:center; justify-content:space-between;
  padding-top: 16px;
  border-top: 1px solid var(--border-soft);
}
.product-card .p-price{
  font-family: var(--font-mono);
  color: var(--accent);
  font-weight:600;
}
.product-card .p-link{ font-size: 0.85rem; color: var(--text-muted); }
.product-card:hover .p-link{ color: var(--accent); }

.view-more-wrap{ text-align:center; margin-top: 44px; }

/* =========================================================
   Benefits
   ========================================================= */
.benefits-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 40px;
}
@media (max-width: 900px){ .benefits-grid{ grid-template-columns: repeat(2,1fr); } }
@media (max-width: 560px){ .benefits-grid{ grid-template-columns: 1fr; } }
.benefit-item .b-icon{
  width: 42px; height:42px;
  border-radius: var(--radius-s);
  background: var(--accent-soft);
  display:flex; align-items:center; justify-content:center;
  color: var(--accent);
  margin-bottom: 18px;
}
.benefit-item h3{ font-size: 1.05rem; margin-bottom: 8px; }
.benefit-item p{ font-size: 0.92rem; }

/* =========================================================
   Free guide CTA banner
   ========================================================= */
.cta-banner{
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-l);
  padding: 50px 44px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 32px;
  background-image: linear-gradient(135deg, var(--accent-soft) 0%, transparent 55%);
}
@media (max-width: 760px){
  .cta-banner{ flex-direction:column; align-items:flex-start; }
}
.cta-banner h2{ margin-bottom: 10px; }
.cta-banner p{ max-width: 46ch; }
.cta-banner .cta-side{ flex: none; }

/* =========================================================
   Image banner
   ========================================================= */
.image-banner{
  border-radius: var(--radius-l);
  overflow:hidden;
  border: 1px solid var(--border);
  position:relative;
}
.image-banner img{ width:100%; height: 340px; object-fit: cover; filter: saturate(0.75) contrast(1.05) brightness(0.7); }
.image-banner .ib-caption{
  position:absolute; left:0; bottom:0; right:0;
  padding: 26px 30px;
  background: linear-gradient(to top, rgba(22,24,29,0.95), transparent);
  font-family: var(--font-mono);
  font-size: 0.84rem;
  color: var(--text-muted);
}

/* =========================================================
   FAQ accordion
   ========================================================= */
.faq-list{ margin-top: 36px; max-width: 780px; }
.faq-item{
  border-bottom: 1px solid var(--border-soft);
}
.faq-q{
  width:100%;
  background:none; border:none;
  text-align:left;
  padding: 20px 0;
  display:flex; align-items:center; justify-content:space-between;
  gap: 16px;
  color: var(--text);
  font-family: var(--font-body);
  font-weight:600;
  font-size: 1rem;
  cursor:pointer;
}
.faq-q .plus{
  font-family: var(--font-mono);
  color: var(--accent);
  flex:none;
  transition: transform 0.18s ease;
}
.faq-item[open] .plus{ transform: rotate(45deg); }
.faq-a{ padding: 0 0 22px 0; }
.faq-a p{ margin:0; }

.faq-group-title{
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 0.82rem;
  margin: 40px 0 4px;
}
.faq-group-title:first-of-type{ margin-top: 8px; }

/* =========================================================
   Footer
   ========================================================= */
.site-footer{
  border-top: 1px solid var(--border-soft);
  background: var(--bg-alt);
  padding: 64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 44px;
}
@media (max-width: 760px){
  .footer-grid{ grid-template-columns: 1fr; gap: 32px; }
}
.footer-grid h4{
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-faint);
  font-weight:500;
  margin-bottom: 16px;
}
.footer-grid ul{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:10px; }
.footer-grid a{ color: var(--text-muted); font-size: 0.92rem; }
.footer-grid a:hover{ color: var(--accent); }
.footer-contact p{ margin: 0 0 8px 0; font-size: 0.92rem; }
.footer-contact .fc-label{ color: var(--text-faint); font-family: var(--font-mono); font-size: 0.76rem; display:block; margin-top: 14px; margin-bottom: 3px; }
.footer-contact .fc-label:first-child{ margin-top:0; }
.social-row{ display:flex; gap: 14px; margin-top: 20px; }
.social-row a{
  width: 34px; height:34px;
  border: 1px solid var(--border);
  border-radius: 50%;
  display:flex; align-items:center; justify-content:center;
  color: var(--text-muted);
}
.social-row a:hover{ border-color: var(--accent); color: var(--accent); }
.footer-bottom{
  margin-top: 54px;
  padding-top: 22px;
  border-top: 1px solid var(--border-soft);
  display:flex; justify-content:space-between; align-items:center;
  flex-wrap:wrap; gap: 12px;
  font-size: 0.82rem;
  color: var(--text-faint);
}
.social-row svg {
  width: 16px;
  height: 16px;
  display: block;
  fill: currentColor;
}
/* =========================================================
   Generic page header (about/contact/etc.)
   ========================================================= */
.page-hero{
  padding: 64px 0 40px;
  border-bottom: 1px solid var(--border-soft);
}
.page-hero .eyebrow-label{ margin-bottom: 10px; }
.page-hero p{ max-width: 60ch; font-size: 1.05rem; }

.prose{ max-width: 760px; }
.prose h2{ margin-top: 44px; }
.prose h3{ margin-top: 28px; font-size: 1.08rem; }
.prose ul, .prose ol{ color: var(--text-muted); padding-left: 22px; }
.prose li{ margin-bottom: 8px; }

/* =========================================================
   Curriculum table
   ========================================================= */
.curriculum-item{
  border: 1px solid var(--border);
  border-radius: var(--radius-m);
  padding: 26px 28px;
  margin-bottom: 18px;
  background: var(--panel);
}
.curriculum-item .ci-head{
  display:flex; align-items:baseline; justify-content:space-between; gap: 16px; flex-wrap:wrap;
  margin-bottom: 14px;
}
.curriculum-item h3{ margin:0; }
.curriculum-item .ci-price{ font-family: var(--font-mono); color: var(--accent); font-size:0.92rem; }
.module-line{
  display:flex; gap: 14px;
  padding: 9px 0;
  border-top: 1px solid var(--border-soft);
  font-size: 0.92rem;
  color: var(--text-muted);
}
.module-line:first-of-type{ border-top:none; }
.module-line .m-num{ font-family: var(--font-mono); color: var(--text-faint); flex:none; width: 22px; }

/* =========================================================
   Product page
   ========================================================= */
.product-hero{
  padding: 56px 0 44px;
  border-bottom: 1px solid var(--border-soft);
}
.product-hero .container{
  display:grid;
  grid-template-columns: 1fr 360px;
  gap: 48px;
  align-items:start;
}
@media (max-width: 900px){
  .product-hero .container{ grid-template-columns: 1fr; }
}
.product-cover{
  height: 220px;
  border-radius: var(--radius-m);
  border: 1px solid var(--border);
  background: linear-gradient(135deg, var(--accent-soft), transparent 70%), var(--bg-alt);
  margin-bottom: 24px;
}
.buy-panel{
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-m);
  padding: 26px;
  position:sticky;
  top: 96px;
}
.buy-panel .bp-price{
  font-family: var(--font-mono);
  font-size: 1.7rem;
  color: var(--accent);
  margin-bottom: 4px;
}
.buy-panel .bp-format{ font-size: 0.86rem; color: var(--text-faint); margin-bottom: 20px; }
.buy-panel ul{ list-style:none; padding:0; margin: 18px 0 0; display:flex; flex-direction:column; gap:10px; }
.buy-panel li{ font-size: 0.86rem; color: var(--text-muted); display:flex; gap:8px; }
.buy-panel li .chk{ color: var(--accent); flex:none; }

.not-found{ padding: 100px 0; text-align:center; }

/* =========================================================
   Loading page
   ========================================================= */
.loading-screen{
  min-height: 100vh;
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  text-align:center;
  padding: 24px;
}
.spinner{
  width: 46px; height:46px;
  border-radius:50%;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  animation: spin 0.9s linear infinite;
  margin-bottom: 26px;
}
@keyframes spin{ to{ transform: rotate(360deg); } }
.loading-screen p{ font-family: var(--font-mono); font-size: 0.9rem; }
.loading-fallback{
  max-width: 420px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-m);
  padding: 26px;
  margin-top: 10px;
}

/* =========================================================
   Contact form
   ========================================================= */
.contact-grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
}
@media (max-width: 860px){ .contact-grid{ grid-template-columns:1fr; } }
.form-field{ margin-bottom: 20px; }
.form-field label{
  display:block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-faint);
  margin-bottom: 8px;
}
.form-field input, .form-field textarea{
  width:100%;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-s);
  padding: 12px 14px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
}
.form-field textarea{ min-height: 140px; resize:vertical; }
.form-note{ font-size: 0.84rem; color: var(--text-faint); margin-top: 14px; }

/* =========================================================
   Updates list
   ========================================================= */
.update-item{
  display:flex;
  gap: 24px;
  padding: 26px 0;
  border-top: 1px solid var(--border-soft);
}
.update-item:first-of-type{ border-top:none; }
.update-date{
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--accent);
  flex: none;
  width: 100px;
}
.update-item h3{ margin-bottom: 6px; font-size: 1.05rem; }