/* ============================================================
   TeacherRetirementHQ.com — Design System
   Signature motif: "the gradebook line" — thin ruled dividers
   and a hand-checked mark, quiet nods to a teacher's world.
   ============================================================ */

:root{
  --navy: #10243E;
  --navy-ink: #0B1B30;
  --ink: #1C2B3A;
  --ink-soft: #4B5A6B;
  --cream: #FAF8F4;
  --paper: #F1EEE7;
  --line: #D8D3C7;
  --line-strong: #B9B2A0;
  --teal: #1F6F60;
  --teal-deep: #164F45;
  --teal-tint: #E7F0EC;
  --white: #FFFFFF;
  --radius: 6px;
  --max: 1120px;
  --shadow: 0 1px 2px rgba(16,36,62,0.06), 0 8px 24px rgba(16,36,62,0.06);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color:var(--ink);
  background:var(--cream);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{
  font-family:'Source Serif 4', Georgia, serif;
  color:var(--navy-ink);
  line-height:1.15;
  margin:0 0 .5em;
  font-weight:600;
}
h1{font-size:clamp(2.1rem,4.5vw,3.4rem); letter-spacing:-0.01em;}
h2{font-size:clamp(1.6rem,3vw,2.3rem); letter-spacing:-0.01em;}
h3{font-size:1.25rem;}
p{margin:0 0 1em; color:var(--ink-soft);}
a{color:var(--teal-deep); text-decoration:none;}
a:hover{text-decoration:underline;}
.container{max-width:var(--max); margin:0 auto; padding:0 24px;}
img{max-width:100%;display:block;}

/* Focus visibility */
a:focus-visible, button:focus-visible, input:focus-visible, summary:focus-visible{
  outline:3px solid var(--teal); outline-offset:2px;
}

/* Skip link */
.skip-link{
  position:absolute; left:-9999px; top:0; background:var(--navy); color:#fff;
  padding:10px 16px; z-index:100; border-radius:0 0 6px 0;
}
.skip-link:focus{left:0;}

/* Eyebrow label */
.eyebrow{
  font-size:.72rem; letter-spacing:.14em; text-transform:uppercase;
  color:var(--teal-deep); font-weight:600; margin-bottom:.75em; display:block;
}

/* Ruled divider — the signature motif */
.ruled{
  height:26px;
  background-image:repeating-linear-gradient(to bottom, transparent 0, transparent 25px, var(--line) 25px, var(--line) 26px);
  margin:0;
}
.ruled-thin{border-top:1px solid var(--line); margin:48px 0;}

/* ---------------- Header ---------------- */
.site-header{
  position:sticky; top:0; z-index:50;
  background:rgba(250,248,244,0.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex; align-items:center; justify-content:space-between; padding:16px 24px; max-width:var(--max); margin:0 auto;}
.brand{display:flex; align-items:center; gap:10px; font-family:'Source Serif 4',serif; font-weight:600; font-size:1.15rem; color:var(--navy-ink);}
.brand .mark{
  width:30px;height:30px;border-radius:50%;
  background:var(--teal); color:#fff; display:flex; align-items:center; justify-content:center;
  font-family:'Source Serif 4',serif; font-size:.95rem; flex-shrink:0;
}
.nav-links{display:flex; gap:28px; align-items:center;}
.nav-links a{color:var(--ink); font-size:.94rem; font-weight:500;}
.nav-links a.active{color:var(--teal-deep); font-weight:600;}
.nav-cta{
  background:var(--teal); color:#fff !important; padding:10px 18px; border-radius:var(--radius);
  font-weight:600; font-size:.9rem; text-decoration:none !important;
}
.nav-cta:hover{background:var(--teal-deep);}
.nav-toggle{display:none; background:none; border:none; cursor:pointer; padding:8px;}
.nav-toggle svg{width:24px;height:24px;stroke:var(--navy-ink);}

@media (max-width:860px){
  .nav-links{
    position:fixed; inset:64px 0 0 0; background:var(--cream); flex-direction:column;
    padding:32px 24px; gap:22px; transform:translateX(100%); transition:transform .25s ease;
    border-top:1px solid var(--line);
  }
  .nav-links.open{transform:translateX(0);}
  .nav-toggle{display:block;}
}

/* ---------------- Hero ---------------- */
.hero{padding:76px 0 64px; background:var(--cream);}
.hero-grid{display:grid; grid-template-columns:1.1fr .9fr; gap:56px; align-items:center;}
.hero p.lede{font-size:1.15rem; max-width:46ch;}
.hero-actions{display:flex; gap:14px; margin-top:28px; flex-wrap:wrap;}
.hero-badges{display:flex; gap:18px; margin-top:34px; flex-wrap:wrap;}
.hero-badge{display:flex; align-items:center; gap:8px; font-size:.85rem; color:var(--ink-soft);}
.hero-badge svg{width:18px;height:18px;stroke:var(--teal-deep); flex-shrink:0;}
.hero-panel{
  background:var(--white); border:1px solid var(--line); border-radius:12px;
  padding:32px; box-shadow:var(--shadow);
}
.hero-panel .ruled{margin:18px 0;}
@media (max-width:860px){ .hero-grid{grid-template-columns:1fr;} }

/* ---------------- Buttons ---------------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:14px 26px; border-radius:var(--radius); font-weight:600; font-size:.96rem;
  cursor:pointer; border:1px solid transparent; text-decoration:none !important;
}
.btn-primary{background:var(--teal); color:#fff;}
.btn-primary:hover{background:var(--teal-deep);}
.btn-secondary{background:transparent; color:var(--navy-ink); border-color:var(--line-strong);}
.btn-secondary:hover{border-color:var(--navy-ink);}

/* ---------------- Sections ---------------- */
section{padding:64px 0;}
.section-head{max-width:640px; margin:0 0 40px;}
.bg-paper{background:var(--paper);}
.bg-navy{background:var(--navy); color:#fff;}
.bg-navy h2, .bg-navy h3{color:#fff;}
.bg-navy p{color:#C9D2DC;}

/* ---------------- Cards / grids ---------------- */
.grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:26px;}
.grid-2{display:grid; grid-template-columns:1fr 1fr; gap:26px;}
@media (max-width:860px){ .grid-3, .grid-2{grid-template-columns:1fr;} }

.card{
  background:var(--white); border:1px solid var(--line); border-radius:10px; padding:28px;
}
.card .icon{
  width:42px;height:42px;border-radius:8px;background:var(--teal-tint);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.card .icon svg{width:22px;height:22px;stroke:var(--teal-deep);}

/* Checkmark list — hand-checked motif */
.check-list{list-style:none; margin:0; padding:0;}
.check-list li{display:flex; gap:12px; padding:10px 0; border-bottom:1px dashed var(--line);}
.check-list li:last-child{border-bottom:none;}
.check-list svg{width:20px;height:20px;stroke:var(--teal-deep); flex-shrink:0; margin-top:2px;}

/* Numbered steps (real sequence — process) */
.steps{counter-reset:step; display:grid; grid-template-columns:repeat(4,1fr); gap:22px;}
@media (max-width:860px){.steps{grid-template-columns:1fr;}}
.step{position:relative; padding-top:8px;}
.step::before{
  counter-increment:step; content:counter(step);
  font-family:'Source Serif 4',serif; font-size:1.6rem; color:var(--teal);
  display:block; margin-bottom:8px; font-weight:600;
}
.step:not(:last-child) .step-line{
  display:block; height:1px; background:var(--line); margin-top:16px;
}

/* FAQ accordion */
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  cursor:pointer; padding:18px 0; font-weight:600; color:var(--navy-ink);
  list-style:none; display:flex; justify-content:space-between; align-items:center; gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .plus{font-size:1.4rem; color:var(--teal); flex-shrink:0; transition:transform .2s;}
.faq-item[open] summary .plus{transform:rotate(45deg);}
.faq-item .faq-body{padding:0 0 20px; max-width:70ch;}

/* Testimonial placeholder */
.quote-card{
  background:var(--white); border:1px solid var(--line); border-radius:10px; padding:28px;
  border-left:3px solid var(--teal);
}
.quote-card .stars{color:#C99B3D; letter-spacing:2px; margin-bottom:10px; font-size:.95rem;}
.quote-card .who{font-size:.85rem; color:var(--ink-soft); margin-top:10px;}
.placeholder-tag{
  display:inline-block; font-size:.7rem; letter-spacing:.08em; text-transform:uppercase;
  color:var(--ink-soft); background:var(--paper); padding:3px 8px; border-radius:4px; margin-top:8px;
}

/* Disclaimer / trust strip */
.trust-strip{
  display:flex; flex-wrap:wrap; gap:28px; justify-content:center; padding:22px 0;
  border-top:1px solid var(--line); border-bottom:1px solid var(--line); background:var(--paper);
}
.trust-strip .item{display:flex; align-items:center; gap:8px; font-size:.85rem; color:var(--ink-soft);}
.trust-strip svg{width:18px;height:18px;stroke:var(--teal-deep);}

.disclaimer-box{
  background:var(--paper); border:1px solid var(--line); border-radius:10px; padding:22px 26px; font-size:.86rem; color:var(--ink-soft);
}
.disclaimer-box strong{color:var(--navy-ink);}

/* CTA band */
.cta-band{
  background:var(--navy); color:#fff; border-radius:14px; padding:52px 44px;
  display:flex; align-items:center; justify-content:space-between; gap:32px; flex-wrap:wrap;
}
.cta-band h2{color:#fff; margin-bottom:.3em;}
.cta-band p{color:#C9D2DC; margin:0;}

/* ---------------- Footer ---------------- */
.site-footer{background:var(--navy); color:#B9C4D0; padding:56px 0 28px; margin-top:40px;}
.footer-grid{display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:32px;}
@media (max-width:860px){.footer-grid{grid-template-columns:1fr 1fr;}}
.site-footer h4{color:#fff; font-family:'Inter',sans-serif; font-size:.85rem; letter-spacing:.06em; text-transform:uppercase; margin-bottom:14px;}
.site-footer a{color:#B9C4D0; font-size:.92rem;}
.site-footer a:hover{color:#fff;}
.footer-links{display:flex; flex-direction:column; gap:10px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.12); margin-top:40px; padding-top:24px;
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px; font-size:.8rem; color:#8FA0B3;
}
.footer-note{font-size:.8rem; color:#8FA0B3; max-width:60ch; margin-top:14px;}

/* Page hero (interior pages) */
.page-hero{padding:56px 0 40px; background:var(--paper); border-bottom:1px solid var(--line);}
.breadcrumb{font-size:.82rem; color:var(--ink-soft); margin-bottom:14px;}
.breadcrumb a{color:var(--ink-soft);}

/* Prose (guide pages) */
.prose{max-width:74ch;}
.prose h2{margin-top:1.6em;}
.prose h3{margin-top:1.3em; color:var(--teal-deep);}
.prose ul{padding-left:1.2em;}
.prose li{margin-bottom:.5em; color:var(--ink-soft);}
.callout{
  background:var(--teal-tint); border-left:3px solid var(--teal); border-radius:6px;
  padding:18px 22px; margin:24px 0; font-size:.95rem;
}
.callout strong{color:var(--navy-ink);}
.mistake-list{list-style:none; padding:0; margin:0;}
.mistake-list li{
  display:flex; gap:12px; padding:14px 0; border-bottom:1px dashed var(--line);
}
.mistake-list svg{width:20px;height:20px;stroke:#A8482E; flex-shrink:0; margin-top:2px;}

/* Checklist page */
.progress-wrap{background:var(--white); border:1px solid var(--line); border-radius:10px; padding:22px 26px; margin-bottom:28px;}
.progress-bar{height:8px; background:var(--paper); border-radius:6px; overflow:hidden; margin-top:10px;}
.progress-fill{height:100%; background:var(--teal); width:0%; transition:width .3s ease;}
.checklist-item{
  display:flex; gap:16px; align-items:flex-start; padding:18px 0; border-bottom:1px solid var(--line);
}
.checklist-item input[type=checkbox]{
  width:22px; height:22px; margin-top:2px; accent-color:var(--teal); flex-shrink:0; cursor:pointer;
}
.checklist-item label{cursor:pointer;}
.checklist-item.checked p.item-title{text-decoration:line-through; color:var(--ink-soft);}
.item-title{font-weight:600; color:var(--navy-ink); margin:0 0 4px;}
.item-desc{margin:0; font-size:.9rem;}

/* Contact form */
.form-field{margin-bottom:18px;}
.form-field label{display:block; font-weight:600; font-size:.88rem; margin-bottom:6px; color:var(--navy-ink);}
.form-field input, .form-field select, .form-field textarea{
  width:100%; padding:12px 14px; border:1px solid var(--line-strong); border-radius:6px;
  font-family:'Inter',sans-serif; font-size:.95rem; background:var(--white); color:var(--ink);
}
.form-field textarea{resize:vertical; min-height:110px;}
.form-note{font-size:.8rem; color:var(--ink-soft); margin-top:6px;}

/* Pill multi-select */
.pill-group{display:flex; flex-wrap:wrap; gap:8px;}
.pill-input{position:absolute; opacity:0; width:1px; height:1px;}
.pill{
  display:inline-flex; align-items:center; padding:8px 14px; border-radius:999px;
  border:1px solid var(--line-strong); font-size:.85rem; color:var(--ink); cursor:pointer;
  background:var(--white); transition:background .15s, border-color .15s, color .15s;
}
.pill-input:checked + .pill{
  background:var(--teal); border-color:var(--teal); color:#fff; font-weight:600;
}
.pill-input:focus-visible + .pill{outline:3px solid var(--teal); outline-offset:2px;}

@media (prefers-reduced-motion: reduce){
  *{transition:none !important; animation:none !important; scroll-behavior:auto !important;}
}