/* =========================================================
   START IN IT — shared stylesheet
   Design concept: the "blueprint" — Rachael's father was an
   architect; she now drafts digital structures instead of
   physical ones. Grid lines, registration marks, drafting-gold
   accents, ink-navy blueprint panels.
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600;9..144,700&family=IBM+Plex+Sans:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root{
  --ink:        #101a28;
  --ink-soft:   #1c2a3d;
  --blueprint:  #16324f;
  --blueprint-2:#1e4166;
  --paper:      #eef1f5;
  --paper-2:    #ffffff;
  --line:       #c7d0db;
  --line-soft:  rgba(255,255,255,0.16);
  --gold:       #d3a03d;
  --gold-soft:  #f0d9a6;
  --sky:        #6fa8c9;
  --text:       #17212e;
  --text-dim:   #4c5a6c;
  --text-on-dark:      #eef2f6;
  --text-on-dark-dim:  #a9bacb;
  --radius: 2px;
  --max: 1180px;
}

*,*::before,*::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  font-family:'IBM Plex Sans', system-ui, sans-serif;
  color:var(--text);
  background:var(--paper);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{
  font-family:'Fraunces', Georgia, serif;
  font-weight:600;
  line-height:1.12;
  margin:0 0 .5em;
  letter-spacing:-0.01em;
}
p{ margin:0 0 1em; max-width:68ch; }
a{ color:inherit; }
img{ max-width:100%; display:block; }
ul{ margin:0; padding:0; }
button{ font-family:inherit; }

.wrap{ max-width:var(--max); margin:0 auto; padding:0 28px; }
@media (max-width:640px){ .wrap{ padding:0 18px; } }

/* ---------- registration-mark / blueprint motifs ---------- */
.tick-label{
  font-family:'IBM Plex Mono', monospace;
  font-size:.72rem;
  letter-spacing:.04em;
  color:var(--gold);
}
.rule{
  border:0; border-top:1px dashed var(--line);
  margin:2.5rem 0;
}
.rule.on-dark{ border-top-color: var(--line-soft); }

/* ---------- nav ---------- */
.site-header{
  position:sticky; top:0; z-index:40;
  background:rgba(238,241,245,0.92);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex; align-items:center; justify-content:space-between;
  padding:16px 0;
}
.nav-brand{
  display:flex; align-items:center; gap:.6rem;
  font-family:'Fraunces', serif; font-weight:600; font-size:1.05rem;
  text-decoration:none; color:var(--ink);
}
.nav-brand .mark{
  width:26px; height:26px; border:1.5px solid var(--gold);
  display:grid; place-items:center; transform:rotate(45deg);
  flex:none;
}
.nav-brand .mark::after{
  content:''; width:8px; height:8px; background:var(--gold);
}
.nav-links{
  display:flex; gap:2rem; list-style:none; font-size:.92rem;
}
.nav-links a{
  text-decoration:none; color:var(--text-dim);
  padding:.3rem 0; border-bottom:2px solid transparent;
  transition:color .15s, border-color .15s;
}
.nav-links a:hover, .nav-links a.active{
  color:var(--ink); border-color:var(--gold);
}
.nav-toggle{
  display:none; background:none; border:1px solid var(--line);
  width:38px; height:38px; cursor:pointer;
}
@media (max-width:760px){
  .nav-toggle{ display:block; }
  .nav-links{
    position:absolute; top:100%; left:0; right:0;
    background:var(--paper-2); flex-direction:column; gap:0;
    border-bottom:1px solid var(--line);
    max-height:0; overflow:hidden; transition:max-height .25s ease;
  }
  .nav-links.open{ max-height:280px; }
  .nav-links li{ border-top:1px solid var(--line); }
  .nav-links a{ display:block; padding:1rem 28px; border-bottom:none; }
}

/* ---------- hero ---------- */
.hero{
  background:
    linear-gradient(180deg, var(--ink) 0%, var(--blueprint) 100%);
  color:var(--text-on-dark);
  position:relative; overflow:hidden;
  padding:96px 0 84px;
}
.hero::before{
  content:'';
  position:absolute; inset:0;
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size:44px 44px;
  opacity:.35;
  mask-image: radial-gradient(ellipse at 70% 30%, black 10%, transparent 70%);
}
.hero-inner{ position:relative; max-width:760px; }
.hero .eyebrow{ color:var(--gold-soft); }
.hero h1{
  font-size:clamp(2.3rem, 5vw, 3.6rem);
  color:#fff;
}
.hero p.lead{
  font-size:1.15rem; color:var(--text-on-dark-dim); max-width:56ch;
}
.hero-cta{ display:flex; gap:.9rem; flex-wrap:wrap; margin-top:1.8rem; }

.btn{
  display:inline-flex; align-items:center; gap:.5rem;
  padding:.85rem 1.5rem;
  border:1px solid var(--gold); color:var(--gold);
  background:transparent; text-decoration:none;
  font-size:.92rem; font-weight:600; cursor:pointer;
  transition:background .15s, color .15s;
}
.btn.solid{ background:var(--gold); color:var(--ink); border-color:var(--gold); }
.btn:hover{ background:var(--gold); color:var(--ink); }
.btn.ghost{ border-color:var(--line-soft); color:var(--text-on-dark); }
.btn.ghost:hover{ background:var(--line-soft); color:#fff; }

/* ---------- sections ---------- */
section.block{ padding:80px 0; }
section.block.tight{ padding:56px 0; }
section.block.dark{ background:var(--ink); color:var(--text-on-dark); }
section.block.dark p{ color:var(--text-on-dark-dim); }
section.block.alt{ background:var(--paper-2); }

.section-head{ max-width:680px; margin-bottom:2.6rem; }
.section-head .tick-label{ display:block; margin-bottom:.6rem; }
.section-head h2{ font-size:clamp(1.7rem,3vw,2.3rem); }

/* ---------- timeline (sequence: numbering justified) ---------- */
.timeline{
  display:grid; grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
  gap:0; border-top:1px solid var(--line-soft); border-left:1px solid var(--line-soft);
}
section.block.alt .timeline, section.block:not(.dark) .timeline{
  border-color:var(--line);
}
.timeline-item{
  padding:1.4rem 1.3rem; border-right:1px solid var(--line-soft);
  border-bottom:1px solid var(--line-soft);
}
section.block:not(.dark) .timeline-item{ border-color:var(--line); }
.timeline-item .num{
  font-family:'IBM Plex Mono',monospace; color:var(--gold);
  font-size:.8rem; display:block; margin-bottom:.5rem;
}
.timeline-item h4{ font-size:1.02rem; margin-bottom:.3rem; }
.timeline-item p{ font-size:.9rem; margin:0; }

/* ---------- accordion (career roles) ---------- */
.accordion{ border-top:1px solid var(--line); }
.acc-item{ border-bottom:1px solid var(--line); }
.acc-trigger{
  width:100%; display:flex; align-items:center; justify-content:space-between;
  gap:1rem; background:none; border:0; text-align:left;
  padding:1.3rem .2rem; cursor:pointer;
}
.acc-trigger h3{ font-size:1.15rem; margin:0; }
.acc-trigger .meta{
  font-family:'IBM Plex Mono',monospace; font-size:.76rem; color:var(--text-dim);
  display:block; margin-top:.25rem; font-weight:400;
}
.acc-trigger .plus{
  flex:none; width:26px; height:26px; border:1px solid var(--line);
  position:relative;
}
.acc-trigger .plus::before, .acc-trigger .plus::after{
  content:''; position:absolute; background:var(--ink);
  top:50%; left:50%; transform:translate(-50%,-50%);
}
.acc-trigger .plus::before{ width:12px; height:1.5px; }
.acc-trigger .plus::after{ width:1.5px; height:12px; transition:transform .2s; }
.acc-item.open .plus::after{ transform:translate(-50%,-50%) rotate(90deg) scaleY(0); }

.acc-panel{
  max-height:0; overflow:hidden; transition:max-height .3s ease;
}
.acc-item.open .acc-panel{ max-height:900px; }
.acc-panel-inner{ padding:0 .2rem 1.6rem; display:grid; gap:1.4rem; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); }
.acc-fact{ font-size:.88rem; }
.acc-fact .k{
  display:block; font-family:'IBM Plex Mono',monospace; font-size:.72rem;
  color:var(--gold); text-transform:uppercase; letter-spacing:.05em; margin-bottom:.35rem;
}

/* ---------- chart cards ---------- */
.chart-grid{ display:grid; gap:2.4rem; grid-template-columns:1fr; }
.chart-card{
  background:var(--paper-2); border:1px solid var(--line);
  padding:1.8rem 1.8rem 1.4rem;
}
.chart-card h3{ font-size:1.15rem; }
.chart-card .note{ font-size:.9rem; color:var(--text-dim); margin-top:1rem; }
.chart-card .source{
  font-family:'IBM Plex Mono',monospace; font-size:.72rem; color:var(--text-dim);
  margin-top:.6rem; padding-top:.6rem; border-top:1px dashed var(--line);
}
canvas{ max-width:100%; }

/* ---------- two-column AI compare ---------- */
.compare{
  display:grid; grid-template-columns:1fr 1fr; gap:0;
  border:1px solid var(--line-soft);
}
@media (max-width:760px){ .compare{ grid-template-columns:1fr; } }
.compare-col{ padding:2rem; }
.compare-col + .compare-col{ border-left:1px solid var(--line-soft); }
@media (max-width:760px){ .compare-col + .compare-col{ border-left:0; border-top:1px solid var(--line-soft); } }
.compare-col h3{ font-size:1.2rem; }
.compare-col.replace h3{ color:#e2b56a; }
.compare-col.durable h3{ color:#8fc7ea; }
.compare-list{ list-style:none; display:grid; gap:1rem; margin-top:1.2rem; }
.compare-list li{
  padding-left:1.1rem; border-left:2px solid var(--line-soft); font-size:.92rem;
}
.compare-list b{ display:block; margin-bottom:.15rem; color:#fff; font-family:'IBM Plex Mono',monospace; font-size:.8rem; font-weight:500; letter-spacing:.02em; }

.industry-strip{
  display:flex; gap:0; flex-wrap:wrap; margin-top:2rem;
  border-top:1px solid var(--line-soft);
}
.industry-chip{
  padding:1rem 1.3rem; border-right:1px solid var(--line-soft); border-bottom:1px solid var(--line-soft);
  font-size:.85rem; flex:1 1 200px;
}
.industry-chip b{ display:block; color:var(--gold-soft); font-size:.78rem; font-family:'IBM Plex Mono',monospace; margin-bottom:.3rem; }

/* ---------- slide deck (auto-advance + click-through) ---------- */
.slidedeck{
  position:relative; border:1px solid var(--line); background:var(--paper-2);
  overflow:hidden;
}
.slide{
  display:none; padding:2.6rem 2.4rem; min-height:280px;
}
.slide.active{ display:block; animation:fadein .35s ease; }
@keyframes fadein{ from{opacity:0; transform:translateY(6px);} to{opacity:1; transform:translateY(0);} }
.slide .tick-label{ margin-bottom:.6rem; display:block; }
.slide h3{ font-size:1.3rem; }
.slide-controls{
  display:flex; align-items:center; justify-content:space-between;
  border-top:1px solid var(--line); padding:.9rem 1.4rem;
  background:var(--paper);
}
.slide-dots{ display:flex; gap:.5rem; }
.slide-dot{
  width:9px; height:9px; border-radius:50%; border:1px solid var(--text-dim);
  background:transparent; cursor:pointer; padding:0;
}
.slide-dot.active{ background:var(--gold); border-color:var(--gold); }
.slide-nav-btn{
  border:1px solid var(--line); background:none; width:34px; height:34px; cursor:pointer;
  font-family:'IBM Plex Mono',monospace;
}
.slide-nav-btn:hover{ background:var(--ink); color:#fff; }

/* ---------- course / link cards ---------- */
.card-grid{ display:grid; gap:1.4rem; grid-template-columns:repeat(auto-fit,minmax(240px,1fr)); }
.course-card{
  border:1px solid var(--line); background:var(--paper-2);
  padding:1.4rem; display:flex; flex-direction:column; gap:.6rem;
  text-decoration:none; color:var(--text);
  transition:border-color .15s, transform .15s;
}
.course-card:hover{ border-color:var(--gold); transform:translateY(-2px); }
.course-card .tag{
  font-family:'IBM Plex Mono',monospace; font-size:.7rem; color:var(--gold);
  text-transform:uppercase; letter-spacing:.05em;
}
.course-card h4{ font-size:1.02rem; margin:0; }
.course-card p{ font-size:.86rem; color:var(--text-dim); margin:0; }
.course-card .go{ margin-top:auto; font-size:.82rem; font-weight:600; }

.path-card{
  border:1px solid var(--line); background:var(--paper-2); padding:1.6rem;
}
.path-card h4{ font-size:1.08rem; }
.path-card ol{ margin:.8rem 0 0; padding-left:1.2rem; font-size:.9rem; color:var(--text-dim); }
.path-card li{ margin-bottom:.4rem; }

/* ---------- footer ---------- */
.site-footer{
  background:var(--ink); color:var(--text-on-dark-dim);
  padding:44px 0 30px; font-size:.85rem;
}
.site-footer a{ color:var(--text-on-dark); text-decoration:none; }
.footer-grid{ display:flex; justify-content:space-between; flex-wrap:wrap; gap:1.5rem; }

/* ---------- about page ---------- */
.author-hero{
  display:grid; grid-template-columns:260px 1fr; gap:2.6rem; align-items:start;
}
@media (max-width:700px){ .author-hero{ grid-template-columns:1fr; } }
.photo-frame{
  aspect-ratio:4/5; border:1px solid var(--line-soft);
  background:var(--blueprint-2);
  display:grid; place-items:center; position:relative; overflow:hidden;
}
.photo-frame img{ width:100%; height:100%; object-fit:cover; }
.photo-frame .placeholder{
  text-align:center; padding:1.2rem; font-size:.78rem; color:var(--text-on-dark-dim);
  font-family:'IBM Plex Mono',monospace; line-height:1.5;
}
.story p{ max-width:none; }

.contact-grid{ display:grid; grid-template-columns:1fr 1fr; gap:2.6rem; }
@media (max-width:760px){ .contact-grid{ grid-template-columns:1fr; } }
.field{ display:flex; flex-direction:column; gap:.4rem; margin-bottom:1.1rem; }
.field label{ font-family:'IBM Plex Mono',monospace; font-size:.75rem; color:var(--gold); text-transform:uppercase; letter-spacing:.04em; }
.field input, .field textarea{
  background:var(--ink-soft); border:1px solid var(--line-soft); color:#fff;
  padding:.8rem .9rem; font-family:inherit; font-size:.94rem;
}
.field textarea{ resize:vertical; min-height:110px; }
.field input:focus, .field textarea:focus{ outline:2px solid var(--gold); outline-offset:1px; }
.form-note{ font-size:.8rem; color:var(--text-on-dark-dim); margin-top:.6rem; }
.calendar-embed{
  border:1px solid var(--line-soft); background:var(--ink-soft);
  aspect-ratio:16/11; display:grid; place-items:center; text-align:center; padding:2rem;
}
.calendar-embed p{ color:var(--text-on-dark-dim); font-size:.88rem; }

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:0.01ms !important; transition-duration:0.01ms !important; }
}