/* =========================================================================
   IEP SmartGoals — "Baseline" concept
   One continuous progress line runs the length of every page. Sections dock
   onto it as milestones; the line fills as you read. Series colours are the
   brand hues, re-stepped per mode and validated for CVD separation.
   ========================================================================= */

:root{
  --surface:#FCFCFB;
  --surface-2:#F4F5F2;
  --panel:#FFFFFF;
  --line:#E2E4DE;
  --line-strong:#CFD3CB;
  --ink:#141A20;
  --ink-soft:#5A6672;
  --ink-mute:#7C8792;
  --navy:#1B3B5F;
  --accent:#2FB5A4;
  --accent-text:#12796D;
  --accent-ink:#04211E;

  /* categorical series — validated on this surface (light) */
  --s1:#2FB5A4;
  --s2:#E08A2C;
  --s3:#8B6FD6;

  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI","Inter",Helvetica,Arial,sans-serif;
  --mono:ui-monospace,"SFMono-Regular","JetBrains Mono",Consolas,"Liberation Mono",monospace;

  --rail:56px;          /* left rail width on desktop */
  --wrap:1160px;
}

:root[data-theme="dark"]{
  --surface:#101418;
  --surface-2:#161C22;
  --panel:#181F26;
  --line:#28323B;
  --line-strong:#3A4753;
  --ink:#E9EEF2;
  --ink-soft:#98A6B2;
  --ink-mute:#7F8D99;
  --navy:#C3D4E6;
  --accent:#4FD3C0;
  --accent-text:#4FD3C0;
  --accent-ink:#04211E;

  /* categorical series — re-stepped for the dark surface, not flipped */
  --s1:#2AA595;
  --s2:#C47F2C;
  --s3:#8E72D6;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --surface:#101418;
    --surface-2:#161C22;
    --panel:#181F26;
    --line:#28323B;
    --line-strong:#3A4753;
    --ink:#E9EEF2;
    --ink-soft:#98A6B2;
    --ink-mute:#7F8D99;
    --navy:#C3D4E6;
    --accent:#4FD3C0;
    --accent-text:#4FD3C0;
    --accent-ink:#04211E;
    --s1:#2AA595;
    --s2:#C47F2C;
    --s3:#8E72D6;
  }
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--surface);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;}
img{max-width:100%;}
::selection{background:var(--accent); color:var(--accent-ink);}

:where(a,button,summary,input,select,textarea):focus-visible{
  outline:2px solid var(--accent-text);
  outline-offset:2px;
  border-radius:3px;
}

.skip{
  position:absolute; left:-9999px; top:0; z-index:100;
  background:var(--panel); color:var(--ink); padding:12px 18px;
  border:1px solid var(--line); border-radius:0 0 8px 0; font-weight:700;
}
.skip:focus{left:0;}

.wrap{max-width:var(--wrap); margin:0 auto; padding:0 28px;}
.u-tab{font-variant-numeric:tabular-nums;}

/* ---------- the spine ---------------------------------------------------- */
.spine{
  position:fixed; top:0; left:0; bottom:0; width:var(--rail);
  z-index:30; pointer-events:none;
  display:none;
}
.spine::before{           /* the unfilled track */
  content:""; position:absolute; left:50%; top:0; bottom:0; width:2px;
  transform:translateX(-50%); background:var(--line);
}
.spine-fill{
  position:absolute; left:50%; top:0; width:2px; height:0;
  transform:translateX(-50%);
  background:linear-gradient(180deg,var(--s1),var(--s3));
}
.spine-nodes{
  position:absolute; inset:0; margin:0; padding:0; list-style:none;
  pointer-events:auto;
}
.spine-nodes li{position:absolute; left:50%; transform:translate(-50%,-50%);}
.spine-nodes a{
  display:block; width:11px; height:11px; border-radius:50%;
  background:var(--surface); border:2px solid var(--line-strong);
  text-decoration:none; transition:background .2s, border-color .2s, transform .2s;
}
.spine-nodes a::after{               /* label on hover/focus */
  content:attr(data-label);
  position:absolute; left:22px; top:50%; transform:translateY(-50%);
  font-family:var(--mono); font-size:10.5px; letter-spacing:.1em;
  text-transform:uppercase; color:var(--ink-soft);
  white-space:nowrap; opacity:0; transition:opacity .18s;
}
.spine-nodes a:hover::after,
.spine-nodes a:focus-visible::after{opacity:1;}
.spine-nodes a.is-done{background:var(--s1); border-color:var(--s1);}
.spine-nodes a.is-current{
  background:var(--surface); border-color:var(--s1); transform:scale(1.45);
}
@media (min-width:1180px){ .spine{display:block;} body{padding-left:var(--rail);} }

/* mobile: the same idea, as a top bar */
.topline{
  position:fixed; top:0; left:0; right:0; height:3px; z-index:60;
  background:transparent;
}
.topline i{display:block; height:100%; width:0; background:linear-gradient(90deg,var(--s1),var(--s3));}
@media (min-width:1180px){ .topline{display:none;} }

/* ---------- masthead ----------------------------------------------------- */
.mast{
  position:sticky; top:0; z-index:40;
  background:color-mix(in srgb,var(--surface) 86%, transparent);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.mast-inner{display:flex; align-items:center; justify-content:space-between; gap:24px; padding:14px 0;}
.logo{display:inline-block; line-height:0;}
.logo img{width:auto; height:36px; display:none;}
.logo .on-light{display:block;}
:root[data-theme="dark"] .logo .on-light{display:none;}
:root[data-theme="dark"] .logo .on-dark{display:block;}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]) .logo .on-light{display:none;}
  :root:not([data-theme="light"]) .logo .on-dark{display:block;}
}

.nav{display:flex; align-items:center; gap:28px;}
.nav a{
  font-size:14px; font-weight:600; text-decoration:none; color:var(--ink-soft);
  padding:6px 0; border-bottom:2px solid transparent;
}
.nav a:hover{color:var(--ink);}
.nav a[aria-current="page"]{color:var(--ink); border-bottom-color:var(--s1);}
.nav-toggle{display:none;}

.btn{
  display:inline-flex; align-items:center; gap:8px; cursor:pointer;
  font-size:14px; font-weight:700; text-decoration:none;
  padding:11px 20px; border-radius:8px; border:1px solid transparent;
  transition:transform .15s ease, background .15s ease;
}
.btn:hover{transform:translateY(-1px);}
.btn-primary{background:var(--accent); color:var(--accent-ink); border-color:var(--accent);}
.btn-ghost{background:transparent; color:var(--ink); border-color:var(--line-strong);}
.btn-ghost:hover{border-color:var(--ink);}
.btn-lg{padding:14px 26px; font-size:15px;}

@media (max-width:820px){
  .nav{
    position:absolute; top:100%; left:0; right:0;
    flex-direction:column; align-items:flex-start; gap:0;
    background:var(--panel); border-bottom:1px solid var(--line);
    padding:8px 28px 18px;
  }
  .nav[hidden]{display:none;}
  .nav a{padding:11px 0; width:100%; border-bottom:1px solid var(--line);}
  .nav a[aria-current="page"]{border-bottom-color:var(--s1);}
  .nav-toggle{
    display:inline-flex; align-items:center; gap:8px;
    background:transparent; border:1px solid var(--line-strong); color:var(--ink);
    font:600 14px var(--sans); padding:9px 14px; border-radius:8px; cursor:pointer;
  }
  .mast-cta{display:none;}
}

/* ---------- section scaffolding ----------------------------------------- */
.sec{padding:92px 0; border-bottom:1px solid var(--line); position:relative;}
.sec:last-of-type{border-bottom:none;}
.sec-tint{background:var(--surface-2);}
.eyebrow{
  font-family:var(--mono); font-size:11px; letter-spacing:.18em;
  text-transform:uppercase; color:var(--accent-text);
  display:flex; align-items:center; gap:10px; margin:0 0 16px;
}
.eyebrow::before{content:""; width:22px; height:2px; background:var(--s1);}
h1,h2,h3,h4{margin:0; letter-spacing:-0.025em; text-wrap:balance; font-weight:800;}
h1{font-size:clamp(38px,5.6vw,66px); line-height:1.02;}
h2{font-size:clamp(27px,3.4vw,40px); line-height:1.1;}
h3{font-size:17px; line-height:1.3;}
.lede{font-size:18px; color:var(--ink-soft); line-height:1.6; max-width:58ch; margin:20px 0 0;}
.sec-head{max-width:640px; margin-bottom:48px;}
.sec-head p{color:var(--ink-soft); font-size:16.5px; line-height:1.6; margin:14px 0 0;}

/* ---------- hero --------------------------------------------------------- */
.hero{padding:84px 0 76px; border-bottom:1px solid var(--line);}
.hero-grid{display:grid; grid-template-columns:1.02fr .98fr; gap:56px; align-items:center;}
.hero h1 .mark{
  background:linear-gradient(100deg,var(--s1),var(--s3) 92%);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.hero-actions{display:flex; gap:14px; margin-top:34px; flex-wrap:wrap;}
.hero-meta{display:flex; gap:34px; margin-top:40px; flex-wrap:wrap;}
.hero-meta div{min-width:96px;}
.hero-meta b{display:block; font-size:26px; font-weight:800; letter-spacing:-0.02em;}
.hero-meta span{font-size:12.5px; color:var(--ink-mute);}
@media (max-width:980px){ .hero-grid{grid-template-columns:1fr; gap:44px;} }

/* ---------- chart -------------------------------------------------------- */
.figure{
  background:var(--panel); border:1px solid var(--line); border-radius:14px;
  padding:22px 22px 16px;
}
.figure-head{display:flex; justify-content:space-between; align-items:baseline; gap:16px; margin-bottom:6px;}
.figure-title{font-size:14.5px; font-weight:700;}
.figure-note{font-family:var(--mono); font-size:11px; color:var(--ink-mute);}
.figure svg{display:block; width:100%; height:auto;}
.grid-line{stroke:var(--line); stroke-width:1;}
.axis-text{fill:var(--ink-mute); font-family:var(--mono); font-size:10.5px;}
.target-line{stroke:var(--ink-mute); stroke-width:1.5; stroke-dasharray:3 4;}
.series{fill:none; stroke-width:2; stroke-linecap:round; stroke-linejoin:round;}
.series-dot{stroke:var(--panel); stroke-width:2;}
.series-label{font-size:11.5px; font-weight:700; font-family:var(--sans);}
.legend{display:flex; gap:18px; flex-wrap:wrap; margin-top:12px; padding-top:12px; border-top:1px solid var(--line);}
.legend span{display:inline-flex; align-items:center; gap:7px; font-size:12.5px; color:var(--ink-soft);}
.legend i{width:10px; height:10px; border-radius:3px; display:block;}
.table-toggle{margin-top:10px;}
.table-toggle summary{
  font-family:var(--mono); font-size:11px; letter-spacing:.08em; text-transform:uppercase;
  color:var(--ink-soft); cursor:pointer; padding:6px 0;
}
table{border-collapse:collapse; width:100%; margin-top:8px; font-size:13px;}
th,td{text-align:right; padding:6px 8px; border-bottom:1px solid var(--line); font-variant-numeric:tabular-nums;}
th:first-child,td:first-child{text-align:left;}
thead th{color:var(--ink-mute); font-family:var(--mono); font-size:10.5px; letter-spacing:.06em; text-transform:uppercase;}

/* ---------- milestone list (the line, inline) --------------------------- */
.milestones{list-style:none; margin:0; padding:0; position:relative;}
.milestones::before{
  content:""; position:absolute; left:13px; top:10px; bottom:10px; width:2px;
  background:linear-gradient(180deg,var(--s1),var(--s3));
}
.milestones li{position:relative; padding:0 0 34px 52px;}
.milestones li:last-child{padding-bottom:0;}
.milestones li::before{
  content:""; position:absolute; left:8px; top:5px; width:12px; height:12px;
  border-radius:50%; background:var(--surface); border:2px solid var(--s1);
}
.milestones h3{margin-bottom:6px;}
.milestones p{margin:0; color:var(--ink-soft); font-size:14.5px; line-height:1.6;}
.milestones .step{
  font-family:var(--mono); font-size:10.5px; letter-spacing:.12em;
  text-transform:uppercase; color:var(--ink-mute); display:block; margin-bottom:4px;
}

/* ---------- cards -------------------------------------------------------- */
.cards{display:grid; gap:18px;}
.cards-3{grid-template-columns:repeat(3,1fr);}
.cards-4{grid-template-columns:repeat(4,1fr);}
.cards-2{grid-template-columns:repeat(2,1fr);}
.card{
  background:var(--panel); border:1px solid var(--line); border-radius:12px;
  padding:24px 22px; display:flex; flex-direction:column; gap:10px;
}
.card .tick{
  font-family:var(--mono); font-size:11px; color:var(--accent-text); letter-spacing:.1em;
}
.card p{margin:0; font-size:13.5px; color:var(--ink-soft); line-height:1.55;}
.card-link{text-decoration:none; transition:border-color .18s, transform .18s;}
.card-link:hover{border-color:var(--s1); transform:translateY(-2px);}

.smart{display:grid; grid-template-columns:repeat(5,1fr); gap:2px; background:var(--line); border:1px solid var(--line); border-radius:12px; overflow:hidden;}
.smart div{background:var(--panel); padding:24px 18px;}
.smart b{display:block; font-family:var(--mono); font-size:30px; color:var(--s1); line-height:1;}
.smart h3{margin:12px 0 6px; font-size:14.5px;}
.smart p{margin:0; font-size:12.5px; color:var(--ink-soft); line-height:1.5;}

@media (max-width:980px){
  .cards-4{grid-template-columns:repeat(2,1fr);}
  .cards-3{grid-template-columns:repeat(2,1fr);}
  .smart{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:640px){
  .cards-4,.cards-3,.cards-2{grid-template-columns:1fr;}
  .smart{grid-template-columns:1fr;}
  .sec{padding:64px 0;}
}

/* ---------- band / cta --------------------------------------------------- */
.band{
  background:var(--navy); color:#fff; border-radius:16px; padding:44px 44px;
  display:flex; align-items:center; justify-content:space-between; gap:32px; flex-wrap:wrap;
}
:root[data-theme="dark"] .band{background:var(--panel); border:1px solid var(--line);}
@media (prefers-color-scheme:dark){ :root:not([data-theme="light"]) .band{background:var(--panel); border:1px solid var(--line);} }
.band h2{color:inherit;}
.band p{color:rgba(255,255,255,.78); margin:12px 0 0; max-width:48ch;}
:root[data-theme="dark"] .band p{color:var(--ink-soft);}
@media (prefers-color-scheme:dark){ :root:not([data-theme="light"]) .band p{color:var(--ink-soft);} }

/* ---------- forms -------------------------------------------------------- */
form{display:grid; gap:16px;}
.form-row{display:grid; grid-template-columns:1fr 1fr; gap:16px;}
label{display:block; font-size:12.5px; font-weight:600; color:var(--ink-soft); margin-bottom:6px;}
input,select,textarea{
  width:100%; font-family:var(--sans); font-size:14.5px; color:var(--ink);
  background:var(--surface); border:1px solid var(--line-strong); border-radius:8px;
  padding:12px 13px;
}
textarea{min-height:120px; resize:vertical;}
.hint{font-size:12px; color:var(--ink-mute); margin:6px 0 0;}
@media (max-width:640px){ .form-row{grid-template-columns:1fr;} }

/* ---------- faq ---------------------------------------------------------- */
.faq{border-top:1px solid var(--line);}
.faq details{border-bottom:1px solid var(--line);}
.faq summary{
  cursor:pointer; padding:20px 40px 20px 0; font-size:16.5px; font-weight:700;
  position:relative; list-style:none;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{
  content:"+"; position:absolute; right:6px; top:50%; transform:translateY(-50%);
  font-family:var(--mono); font-size:20px; color:var(--accent-text); font-weight:400;
}
.faq details[open] summary::after{content:"–";}
.faq .answer{padding:0 40px 22px 0; color:var(--ink-soft); font-size:15px; line-height:1.65; margin:0;}

/* ---------- footer ------------------------------------------------------- */
footer{padding:52px 0 60px; border-top:1px solid var(--line);}
.foot-inner{display:flex; justify-content:space-between; gap:28px; flex-wrap:wrap;}
.foot-links{display:flex; gap:22px; font-size:13.5px; flex-wrap:wrap;}
.foot-links a{color:var(--ink-soft); text-decoration:none;}
.foot-links a:hover{color:var(--ink);}
.foot-meta{font-size:12px; color:var(--ink-mute); text-align:right;}
.foot-inner .logo img{height:30px;}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important;}
}