/* ============================================================
   /fc — FounderCode
   Premium minimalism + warm personality
   ============================================================ */

:root {
  --accent: #D4845A;
  --accent-light: #E09B76;
  --accent-dim: rgba(212, 132, 90, 0.12);
  --accent-subtle: rgba(212, 132, 90, 0.06);

  --bg-0: #111113;
  --bg-1: #161618;
  --bg-2: #1B1B1E;
  --bg-term: #0C0C0E;

  --fg-0: #F0EEE9;
  --fg-1: #A3A09A;
  --fg-2: #6B6862;
  --fg-3: #3D3B38;

  --border: rgba(255,255,255,0.06);
  --border-h: rgba(255,255,255,0.1);
  --border-accent: rgba(212,132,90,0.25);

  --green: #7EBF8E;
  --red: #D97272;
  --purple: #A88BD4;
  --radius: 12px;
}

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

body {
  background: var(--bg-0);
  color: var(--fg-0);
  font-family: 'DM Sans', -apple-system, sans-serif;
  font-weight: 300;
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* grain */
.grain {
  position:fixed;inset:0;z-index:9999;pointer-events:none;opacity:0.025;
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size:200px;
}

body>*:not(.grain){position:relative;z-index:1}

/* dot grid */
body::before {
  content:'';position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:radial-gradient(circle,rgba(212,132,90,0.025) 1px,transparent 1px);
  background-size:40px 40px;
}

/* typography */
h1,h2,h3{font-weight:400;letter-spacing:-0.025em}
h1{font-size:clamp(2.6rem,5.5vw,4.2rem);line-height:1.1}
h2{font-size:clamp(1.7rem,3.5vw,2.5rem);line-height:1.2}
h3{font-size:1.05rem}

.cursive {
  font-family:'Caveat',cursive;
  font-weight:600;
  color:var(--accent);
  font-size:1.15em;
}

.section-label {
  font-family:'JetBrains Mono',monospace;
  font-size:0.65rem;
  text-transform:uppercase;
  letter-spacing:0.18em;
  color:var(--accent);
  margin-bottom:14px;
}

/* ---- NAV ---- */
.nav {
  position:fixed;top:0;left:0;right:0;z-index:100;
  padding:14px 40px;
  background:rgba(17,17,19,0.88);
  backdrop-filter:blur(20px);
  border-bottom:1px solid var(--border);
}
.nav-inner{max-width:1060px;margin:0 auto;display:flex;align-items:center;justify-content:space-between}
.nav-logo{font-family:'JetBrains Mono',monospace;font-size:1.2rem;font-weight:600;color:var(--accent);text-decoration:none}
.nav-links{display:flex;align-items:center;gap:32px}
.nav-links a{color:var(--fg-1);text-decoration:none;font-size:0.82rem;font-weight:400;transition:color .2s}
.nav-links a:hover{color:var(--fg-0)}
.nav-cta{background:var(--fg-0)!important;color:var(--bg-0)!important;padding:7px 20px;border-radius:8px;font-weight:500!important;transition:opacity .2s!important}
.nav-cta:hover{opacity:.85!important}

/* ---- HERO ---- */
.hero {
  min-height:100vh;display:flex;flex-direction:column;
  align-items:center;justify-content:center;
  padding:140px 40px 100px;text-align:center;gap:56px;
}
.hero-eyebrow{font-family:'Caveat',cursive;font-size:1.2rem;color:var(--accent);opacity:.9}
.hero-inner{text-align:center;display:flex;flex-direction:column;align-items:center}
.hero-sub{max-width:480px;font-size:.95rem;color:var(--fg-1);line-height:1.8;margin-top:16px;text-align:center}
.hero-sub em{color:var(--accent);font-style:italic}
.hero-install{margin-top:16px}
.install-label{font-family:'JetBrains Mono',monospace;font-size:.65rem;text-transform:uppercase;letter-spacing:.12em;color:var(--fg-2);margin-bottom:8px}

.code-block {
  display:inline-flex;align-items:center;gap:12px;
  background:var(--bg-term);
  border:1px solid var(--fg-3);
  border-radius:10px;padding:13px 20px;
  cursor:pointer;transition:border-color .3s;
}
.code-block:hover{border-color:var(--accent)}
.code-prompt{font-family:'JetBrains Mono',monospace;color:var(--accent);font-weight:600;font-size:.82rem}
.code-block code{font-family:'JetBrains Mono',monospace;font-size:.78rem;color:var(--fg-1)}
.copy-btn{
  font-family:'JetBrains Mono',monospace;font-size:.6rem;text-transform:uppercase;
  letter-spacing:.1em;color:var(--fg-3);padding:3px 8px;border-radius:4px;border:1px solid var(--border);
  transition:all .2s;
}
.code-block:hover .copy-btn{color:var(--accent);border-color:var(--border-accent)}
.code-block.copied .copy-btn{color:var(--green)!important;border-color:var(--green)!important}

/* ---- TERMINAL ---- */
.terminal-window{max-width:600px;width:100%;border-radius:var(--radius);overflow:hidden;border:1px solid var(--border-h);box-shadow:0 24px 64px rgba(0,0,0,.45)}
.terminal-bar{display:flex;align-items:center;gap:10px;padding:10px 14px;background:var(--bg-2);border-bottom:1px solid var(--border)}
.terminal-dots{display:flex;gap:5px}
.dot{width:10px;height:10px;border-radius:50%;background:var(--fg-3)}
.terminal-title{font-family:'JetBrains Mono',monospace;font-size:.68rem;color:var(--fg-2)}
.terminal-body{background:var(--bg-term);padding:18px;min-height:180px;font-family:'JetBrains Mono',monospace;font-size:.76rem;line-height:1.85}
.term-line{display:flex;align-items:center;gap:8px}
.term-prompt{color:var(--accent);font-weight:600}
.term-cmd{color:var(--fg-0)}
.term-cursor{display:inline-block;width:7px;height:15px;background:var(--accent);animation:blink 1.1s step-end infinite}
@keyframes blink{50%{opacity:0}}
.term-output{margin-top:10px;color:var(--fg-1);line-height:1.9}
.term-output .out-section{color:var(--accent);font-weight:500}
.term-output .out-score{color:var(--green)}
.term-output .out-warn{color:var(--red)}
.term-output .out-action{color:var(--accent-light)}

/* ---- SECTIONS (shared) ---- */
.problem-section,.mentors-section,.skills,.journey-section{
  padding:140px 40px;max-width:1060px;margin:0 auto;
}
.teach-section,.data-section{padding:140px 40px;background:var(--bg-1)}

/* ---- PROBLEM ---- */
.problem-section h2{margin-bottom:56px}
.problem-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.problem-card{
  padding:32px;border:1px solid var(--border);border-radius:var(--radius);
  background:var(--bg-1);transition:border-color .3s,transform .3s;
}
.problem-card:hover{border-color:var(--border-accent);transform:translateY(-2px)}
.p-num{font-family:'Caveat',cursive;font-size:2.8rem;font-weight:700;color:var(--accent);line-height:1;margin-bottom:4px}
.p-label-text{font-size:.88rem;color:var(--fg-0);margin-bottom:10px}
.p-detail{font-size:.8rem;color:var(--fg-2);line-height:1.7}

/* ---- MENTORS ---- */
.mentors-sub{color:var(--fg-1);max-width:520px;margin:10px 0 56px;font-size:.92rem}
.mentors-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.mentor-card{
  padding:28px 20px;border:1px solid var(--border);border-radius:var(--radius);
  text-align:center;background:var(--bg-1);transition:border-color .3s,transform .3s;
}
.mentor-card:hover{border-color:var(--border-accent);transform:translateY(-3px)}
.mentor-avatar{width:72px;height:72px;border-radius:50%;overflow:hidden;margin:0 auto 14px;border:2px solid var(--fg-3);transition:border-color .3s}
.mentor-card:hover .mentor-avatar{border-color:var(--accent)}
.mentor-avatar img{width:100%;height:100%;object-fit:cover;filter:grayscale(100%) brightness(1.1);transition:filter .4s}
.mentor-card:hover .mentor-avatar img{filter:grayscale(0%)}
.mentor-name{font-size:.9rem;font-weight:400;color:var(--fg-0);margin-bottom:2px}
.mentor-role{font-family:'JetBrains Mono',monospace;font-size:.6rem;text-transform:uppercase;letter-spacing:.12em;color:var(--accent);margin-bottom:10px}
.mentor-style{font-family:'Caveat',cursive;font-size:.95rem;color:var(--fg-2)}
.mentor-cmd{font-family:'JetBrains Mono',monospace;font-size:.65rem;color:var(--fg-3);margin-top:14px;padding-top:12px;border-top:1px solid var(--border)}

/* ---- SKILLS ---- */
.skills-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px;margin-top:56px}
.skill-card{
  padding:28px;border:1px solid var(--border);border-radius:var(--radius);
  background:var(--bg-1);transition:border-color .3s,transform .3s;
}
.skill-card:hover{border-color:var(--border-accent);transform:translateY(-2px)}
.skill-card.featured{border-color:var(--border-accent);background:linear-gradient(135deg,var(--bg-1),var(--accent-subtle))}
.skill-slash{font-family:'JetBrains Mono',monospace;font-size:.82rem;font-weight:600;color:var(--accent);margin-bottom:10px}
.skill-card h3{margin-bottom:6px}
.skill-card p{font-size:.82rem;color:var(--fg-1);line-height:1.7;margin-bottom:14px}
.skill-modes{display:flex;flex-wrap:wrap;gap:5px}
.skill-modes span{font-family:'JetBrains Mono',monospace;font-size:.6rem;padding:3px 8px;border-radius:5px;border:1px solid var(--border);color:var(--fg-2)}

/* ---- TEACH ---- */
.teach-inner{max-width:1060px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start}
.teach-left h2{margin-bottom:28px}
.teach-left ul{list-style:none;padding:0}
.teach-left li{font-size:.88rem;color:var(--fg-0);line-height:2.1;padding-left:20px;position:relative}
.teach-left li::before{content:'~';position:absolute;left:0;color:var(--accent);font-family:'JetBrains Mono',monospace;font-size:.85rem}
.teach-left li .dim{color:var(--fg-2);font-size:.82rem}
.comparison{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.comp-col{border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);background:var(--bg-0)}
.comp-header{padding:12px 16px;font-family:'JetBrains Mono',monospace;font-size:.65rem;text-transform:uppercase;letter-spacing:.12em}
.comp-col.bad .comp-header{color:var(--red);border-bottom:1px solid rgba(217,114,114,.12)}
.comp-col.good .comp-header{color:var(--accent);border-bottom:1px solid var(--accent-dim)}
.comp-item{padding:8px 16px;font-size:.75rem;color:var(--fg-2);border-bottom:1px solid var(--border)}
.comp-item:last-child{border-bottom:none}
.comp-col.good .comp-item{color:var(--fg-1)}

/* ---- JOURNEY ---- */
.journey-section{text-align:center}
.journey-title{margin-bottom:64px}
.journey-path{display:flex;align-items:center;justify-content:center;flex-wrap:wrap}
.journey-stop{text-align:center;padding:0 14px}
.journey-dot{
  width:10px;height:10px;border-radius:50%;border:2px solid var(--fg-3);
  margin:0 auto 10px;transition:all .3s;
}
.journey-stop:hover .journey-dot,.journey-stop.active .journey-dot{
  border-color:var(--accent);background:var(--accent);box-shadow:0 0 14px var(--accent-dim);
}
.journey-label{font-family:'JetBrains Mono',monospace;font-size:.68rem;font-weight:500;color:var(--fg-0);margin-bottom:2px}
.journey-stop.active .journey-label{color:var(--accent);font-weight:600}
.journey-desc{font-family:'Caveat',cursive;font-size:.88rem;color:var(--fg-2)}
.journey-line{width:36px;height:1px;background:var(--fg-3);margin-bottom:28px}

/* ---- DATA ---- */
.data-section{text-align:center}
.data-section h2{margin-bottom:56px}
.data-grid{max-width:760px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.data-card{padding:28px 16px;border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-0)}
.data-num{font-family:'Caveat',cursive;font-size:2.2rem;font-weight:700;color:var(--accent);line-height:1;margin-bottom:6px}
.data-label{font-size:.78rem;color:var(--fg-2)}

/* ---- FOOTER ---- */
.footer{padding:48px 40px;border-top:1px solid var(--border)}
.footer-inner{max-width:1060px;margin:0 auto;display:flex;align-items:center;justify-content:space-between}
.footer-left{display:flex;flex-direction:column;gap:6px}
.footer-left p{font-size:.78rem;color:var(--fg-2)}
.footer-left a{color:var(--fg-1);text-decoration:none}
.footer-cta{
  font-family:'JetBrains Mono',monospace;font-size:.82rem;
  background:var(--fg-0);color:var(--bg-0);
  padding:10px 24px;border-radius:8px;text-decoration:none;font-weight:500;
  transition:opacity .2s;
}
.footer-cta:hover{opacity:.85}

/* ---- RESPONSIVE ---- */
@media(max-width:900px){
  .problem-grid{grid-template-columns:1fr}
  .mentors-grid{grid-template-columns:1fr 1fr}
  .teach-inner{grid-template-columns:1fr}
  .comparison{grid-template-columns:1fr}
  .data-grid{grid-template-columns:1fr 1fr}
  .journey-path{flex-direction:column}
  .journey-line{width:1px;height:28px;margin:0 auto}
}
@media(max-width:600px){
  .nav-links a:not(.nav-cta){display:none}
  .mentors-grid,.skills-grid{grid-template-columns:1fr}
  .nav{padding:14px 20px}
  .hero,.problem-section,.mentors-section,.skills,.journey-section{padding-left:20px;padding-right:20px}
  .teach-section,.data-section{padding-left:20px;padding-right:20px}
}

/* ---- ANIMATIONS ---- */
@keyframes fadeUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}
.skill-card,.mentor-card,.problem-card,.data-card{animation:fadeUp .5s ease-out both;animation-play-state:paused}