/* =========================================================
   DASI — shared site stylesheet
   Every page links to this one file. Layout changes (header,
   footer, nav, buttons, etc.) only need to happen here.
   ========================================================= */

:root{
  --paper:#F6F5EE;
  --paper-2:#EFEDE2;
  --ink:#202B29;
  --ink-soft:#4A5451;
  --moss:#3F6449;
  --moss-deep:#2C4833;
  --gold:#B8862B;
  --clay:#8B6F52;
  --line:#D8D4C4;
  --max:1120px;
}

/* ===== RESET / BASE ===== */
*{box-sizing:border-box; margin:0; padding:0;}
html{scroll-behavior:smooth; background:#F6F5EE;}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:'Inter', sans-serif;
  font-weight:400;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit; text-decoration:none;}
.wrap{max-width:var(--max); margin:0 auto; padding:0 32px;}
h1,h2,h3{font-family:'Fraunces', serif; font-weight:500; letter-spacing:-0.01em; color:var(--ink);}

.skip-link{position:absolute; left:-999px; top:0; background:var(--ink); color:var(--paper); padding:10px 16px; z-index:200;}
.skip-link:focus{left:16px; top:16px;}

a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{outline:2px solid var(--moss); outline-offset:3px;}

/* ===== HEADER / NAV ===== */
header{
  position:sticky; top:0; z-index:100;
  background:rgba(246,245,238,0.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  max-width:var(--max); margin:0 auto; padding:18px 32px;
  display:flex; align-items:center; justify-content:space-between;
}
.brand{display:flex; align-items:center; gap:12px;}
.brand-mark{
  width:34px; height:34px; border-radius:50%;
  background:var(--moss);
  display:flex; align-items:center; justify-content:center;
  font-family:'Fraunces', serif; color:var(--paper); font-size:15px; font-weight:600;
}
.brand-name{font-family:'Fraunces', serif; font-size:19px; font-weight:600; letter-spacing:0.01em;}
nav ul{list-style:none; display:flex; gap:36px;}
nav a{
  font-size:14px; font-weight:500; color:var(--ink-soft);
  letter-spacing:0.02em; position:relative; padding-bottom:4px;
  transition:color 0.2s ease;
}
nav a:hover, nav a.active{color:var(--moss-deep);}
nav a.active::after{
  content:''; position:absolute; left:0; bottom:0; width:100%; height:1.5px; background:var(--gold);
}

/* Hamburger toggle — hidden on desktop */
.nav-toggle{
  display:none;
  width:34px; height:34px;
  border:none; background:transparent; cursor:pointer;
  flex-direction:column; justify-content:center; align-items:center; gap:5px;
  padding:0; flex-shrink:0;
}
.nav-toggle span{
  width:22px; height:2px; background:var(--ink);
  transition:transform 0.25s ease, opacity 0.25s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ===== PATHWAY (home page signature element) ===== */
.pathway-svg{
  position:absolute; left:50%; top:0; transform:translateX(calc(-50% + 0px));
  width:2px; height:100%; z-index:0; pointer-events:none;
}
#pathway-line{
  stroke:var(--moss); stroke-width:1.5; fill:none;
  stroke-dasharray:6000; stroke-dashoffset:6000;
  transition:stroke-dashoffset 0.15s linear;
}
.waypoint{
  fill:var(--paper); stroke:var(--gold); stroke-width:2;
  opacity:0; transform-origin:center; transition:opacity 0.4s ease;
}
.waypoint.lit{opacity:1;}

/* ===== HOME HERO ===== */
.hero{position:relative; padding:120px 32px 100px; overflow:hidden;}
.hero-inner{max-width:var(--max); margin:0 auto; text-align:center;}
.eyebrow{
  font-family:'IBM Plex Mono', monospace; font-size:12.5px; letter-spacing:0.14em;
  text-transform:uppercase; color:var(--gold); margin-bottom:22px; display:inline-block;
}
.hero h1{font-size:clamp(40px, 6vw, 72px); line-height:1.06; margin-bottom:28px;}
.hero h1 em{font-style:italic; color:var(--moss-deep);}
.hero-sub{max-width:600px; margin:0 auto 40px; font-size:18px; color:var(--ink-soft); font-weight:400;}
.hero-cta{display:flex; gap:16px; justify-content:center; flex-wrap:wrap;}

.btn{
  display:inline-block; padding:14px 30px; font-size:14.5px; font-weight:500;
  border-radius:2px; letter-spacing:0.01em; transition:all 0.2s ease; border:1px solid transparent;
  cursor:pointer;
}
.btn-primary{background:var(--moss-deep); color:var(--paper);}
.btn-primary:hover{background:var(--ink);}
.btn-secondary{border-color:var(--ink); color:var(--ink);}
.btn-secondary:hover{background:var(--ink); color:var(--paper);}
.btn-light{background:var(--paper); color:var(--moss-deep);}
.btn-light:hover{background:#fff;}

.triad{
  display:flex; justify-content:center; gap:14px; margin-top:56px;
  font-family:'Fraunces', serif; font-style:italic; font-size:15px; color:var(--clay);
}
.triad span:not(.dot){letter-spacing:0.02em;}
.dot{color:var(--gold);}

/* ===== SECTION SHARED ===== */
section{position:relative; padding:96px 32px; z-index:1;}
.section-inner{max-width:var(--max); margin:0 auto;}
.section-head{max-width:640px; margin-bottom:56px;}
.section-head .eyebrow{margin-bottom:16px;}
.section-head h2{font-size:clamp(28px, 3.6vw, 40px); margin-bottom:16px;}
.section-head p{color:var(--ink-soft); font-size:16.5px;}

/* ===== ACRONYM SECTION (home) ===== */
.acronym-band{background:var(--paper-2); border-top:1px solid var(--line); border-bottom:1px solid var(--line);}
.acronym-grid{
  display:grid; grid-template-columns:repeat(4, 1fr); gap:0;
  border:1px solid var(--line); background:var(--paper);
}
.acronym-item{padding:36px 26px; border-right:1px solid var(--line); display:flex; flex-direction:column; gap:14px;}
.acronym-item:last-child{border-right:none;}
.acronym-letter{font-family:'Fraunces', serif; font-size:44px; font-weight:600; color:var(--moss-deep); line-height:1;}
.acronym-word{font-family:'IBM Plex Mono', monospace; font-size:12px; letter-spacing:0.08em; text-transform:uppercase; color:var(--gold);}
.acronym-desc{font-size:14.5px; color:var(--ink-soft); line-height:1.55;}

/* ===== SOLUTION CARDS (home) ===== */
.sol-grid{display:grid; grid-template-columns:repeat(2, 1fr); gap:1px; background:var(--line); border:1px solid var(--line);}
.sol-card{
  background:var(--paper); padding:40px; transition:background 0.25s ease;
  display:flex; flex-direction:column; gap:16px; min-height:200px;
}
.sol-card:hover{background:var(--paper-2);}
.sol-num{font-family:'IBM Plex Mono', monospace; font-size:12px; color:var(--clay); letter-spacing:0.05em;}
.sol-card h3{font-size:21px; font-weight:500;}
.sol-card p{color:var(--ink-soft); font-size:14.5px; flex-grow:1;}
.sol-link{font-size:13.5px; font-weight:500; color:var(--moss-deep); display:inline-flex; align-items:center; gap:6px;}
.sol-link svg{width:13px; height:13px; transition:transform 0.2s ease;}
.sol-card:hover .sol-link svg{transform:translateX(3px);}

/* ===== ORIGIN (home) ===== */
.origin{background:var(--moss-deep); color:var(--paper);}
.origin .section-head p{color:#CFE0D2;}
.origin .eyebrow{color:#D9B36A;}
.origin blockquote{
  font-family:'Fraunces', serif; font-style:italic; font-size:clamp(22px,3vw,30px);
  line-height:1.5; max-width:820px; color:var(--paper); margin-bottom:32px;
}
.origin-detail{max-width:720px; color:#CFE0D2; font-size:15.5px; line-height:1.75;}
.origin-detail p{margin-bottom:14px;}

/* ===== VALUES STRIP (home / about) ===== */
.values-strip{display:flex; flex-wrap:wrap; gap:0; border-top:1px solid var(--line); border-bottom:1px solid var(--line);}
.value-item{
  flex:1; min-width:220px; padding:28px 24px; border-right:1px solid var(--line);
  font-family:'IBM Plex Mono', monospace; font-size:12.5px; letter-spacing:0.04em; color:var(--ink-soft);
}
.value-item:last-child{border-right:none;}
.value-item strong{display:block; font-family:'Fraunces', serif; font-size:17px; font-style:normal; color:var(--ink); margin-bottom:6px; letter-spacing:0;}

/* ===== HOME CTA ===== */
.cta{text-align:center;}
.cta h2{font-size:clamp(30px,4vw,44px); margin-bottom:20px;}
.cta p{color:var(--ink-soft); max-width:520px; margin:0 auto 36px; font-size:16.5px;}

/* ===== CTA BAND (about / solutions / domains) ===== */
.cta-band{background:var(--moss-deep); text-align:center;}
.cta-band h2{color:#fff; font-size:clamp(28px,3.6vw,40px); margin-bottom:18px;}
.cta-band p{color:#CFE0D2; max-width:480px; margin:0 auto 32px; font-size:16px;}

/* ===== INTERIOR PAGE HERO (about / solutions / domains / contact) ===== */
.page-hero{padding:88px 32px 64px; border-bottom:1px solid var(--line);}
.page-hero-inner{max-width:var(--max); margin:0 auto;}
.page-hero h1{font-size:clamp(36px,5vw,56px); line-height:1.1; margin-bottom:22px; max-width:760px;}
.page-hero p{max-width:600px; font-size:17px; color:var(--ink-soft);}

/* Contact page uses a centered variant of the same hero */
.page-hero--center{padding:88px 32px 56px; border-bottom:none;}
.page-hero--center .page-hero-inner{text-align:center;}
.page-hero--center h1{font-size:clamp(34px,4.6vw,52px); line-height:1.12; margin-bottom:20px; max-width:680px; margin-left:auto; margin-right:auto;}
.page-hero--center p{max-width:520px; margin:0 auto;}

/* ===== ABOUT ===== */
.story{display:grid; grid-template-columns:1fr 1fr; gap:64px; align-items:start;}
.story blockquote{font-family:'Fraunces', serif; font-style:italic; font-size:clamp(22px,2.6vw,28px); line-height:1.5; color:var(--moss-deep); border-left:3px solid var(--gold); padding-left:28px;}
.story-detail p{color:var(--ink-soft); font-size:15.5px; margin-bottom:18px;}

.how-band{background:var(--paper-2); border-top:1px solid var(--line); border-bottom:1px solid var(--line);}
.how-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--line); border:1px solid var(--line); margin-top:48px;}
.how-card{background:var(--paper); padding:36px; display:flex; flex-direction:column; gap:14px;}
.how-card h3{font-size:19px;}
.how-card p{color:var(--ink-soft); font-size:14.5px;}

/* ===== SOLUTIONS PAGE ===== */
.solution-block{display:grid; grid-template-columns:280px 1fr; gap:56px; padding:64px 0; border-bottom:1px solid var(--line);}
.solution-block:first-child{padding-top:0;}
.solution-block:last-child{border-bottom:none;}
.sol-meta{display:flex; flex-direction:column; gap:10px;}
.sol-title{font-size:26px; line-height:1.2;}
.sol-body p{color:var(--ink-soft); font-size:15.5px; margin-bottom:18px; max-width:640px;}
.sol-list{list-style:none; display:flex; flex-direction:column; gap:10px; margin-top:8px;}
.sol-list li{font-size:14.5px; color:var(--ink); padding-left:22px; position:relative;}
.sol-list li::before{content:'—'; position:absolute; left:0; color:var(--gold);}

/* ===== DOMAINS PAGE ===== */
.domain-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--line); border:1px solid var(--line);}
.domain-card{background:var(--paper); padding:40px 34px; display:flex; flex-direction:column; gap:14px; transition:background 0.25s ease;}
.domain-card:hover{background:var(--paper-2);}
.domain-icon{width:38px; height:38px; border-radius:50%; border:1.5px solid var(--gold); display:flex; align-items:center; justify-content:center; font-family:'Fraunces', serif; font-style:italic; color:var(--moss-deep); font-size:16px;}
.domain-card h3{font-size:19px;}
.domain-card p{color:var(--ink-soft); font-size:14.5px;}

.note-band{background:var(--paper-2); border-top:1px solid var(--line); border-bottom:1px solid var(--line);}
.note-inner{max-width:720px; margin:0 auto; text-align:center;}
.note-inner p{color:var(--ink-soft); font-size:16px;}

/* ===== CONTACT PAGE ===== */
.contact-wrap{max-width:820px; margin:0 auto; display:grid; grid-template-columns:1fr 1.3fr; gap:0; border:1px solid var(--line); background:var(--paper);}

.contact-info{background:var(--moss-deep); color:var(--paper); padding:44px 36px; display:flex; flex-direction:column; justify-content:space-between;}
.contact-info h2{color:#fff; font-size:22px; margin-bottom:14px;}
.contact-info p{color:#CFE0D2; font-size:14.5px; margin-bottom:28px;}
.contact-email{font-family:'IBM Plex Mono', monospace; font-size:15px; color:#fff; word-break:break-all; border-top:1px solid rgba(255,255,255,0.25); padding-top:20px; display:inline-block;}
.contact-email:hover{color:#D9B36A;}

.contact-form{padding:44px 36px; display:flex; flex-direction:column; gap:20px;}
.field{display:flex; flex-direction:column; gap:8px;}
.field label{font-size:13px; font-weight:500; color:var(--ink-soft); letter-spacing:0.02em;}
.field input, .field textarea{
  border:1px solid var(--line); background:var(--paper-2); padding:12px 14px; font-family:'Inter', sans-serif;
  font-size:14.5px; color:var(--ink); border-radius:2px; resize:vertical;
}
.field textarea{min-height:120px;}
.field input:focus, .field textarea:focus{border-color:var(--moss); outline:none;}
.field input.has-error, .field textarea.has-error{border-color:#B4432F;}
.field-error{font-size:12.5px; color:#B4432F; display:none;}
.field-error.show{display:block;}
.btn[disabled]{opacity:0.6; cursor:not-allowed;}
.form-status{font-size:13px; color:#B4432F; display:none;}
.form-status.show{display:block;}
.form-note{font-size:12.5px; color:var(--clay);}

.modal-overlay{
  position:fixed; inset:0; background:rgba(32,43,41,0.55); display:none;
  align-items:center; justify-content:center; z-index:300; padding:20px;
}
.modal-overlay.show{display:flex;}
.modal-box{
  background:var(--paper); border:1px solid var(--line); max-width:420px; width:100%;
  padding:36px 32px; text-align:center; position:relative;
}
.modal-box h3{font-size:20px; margin-bottom:12px;}
.modal-box p{font-size:14.5px; color:var(--ink-soft); margin-bottom:24px;}
.modal-close{
  display:inline-block; padding:10px 26px; font-size:14px; font-weight:500; border-radius:2px;
  background:var(--moss-deep); color:var(--paper); border:1px solid transparent; cursor:pointer;
}
.modal-close:hover{background:var(--ink);}

/* ===== FOOTER ===== */
footer{border-top:1px solid var(--line); padding:48px 32px 40px;}
.footer-inner{
  max-width:var(--max); margin:0 auto; display:flex; justify-content:space-between;
  align-items:flex-start; flex-wrap:wrap; gap:24px;
}
.footer-brand{font-family:'Fraunces', serif; font-size:17px;}
.footer-tag{font-size:13px; color:var(--ink-soft); margin-top:6px;}
.footer-links{display:flex; gap:28px; font-size:13.5px;}
.footer-links a{color:var(--ink-soft);}
.footer-links a:hover{color:var(--moss-deep);}
.footer-copy{width:100%; text-align:center; font-size:12.5px; color:var(--clay); margin-top:32px; font-family:'IBM Plex Mono', monospace;}

/* ===== RESPONSIVE ===== */
@media (max-width:760px){
  /* Mobile nav: hamburger opens a dropdown panel instead of the old
     "nav ul{display:none}" dead end. */
  .nav-toggle{display:flex;}
  nav{
    position:absolute; top:100%; left:0; right:0; background:var(--paper);
    border-bottom:1px solid var(--line); max-height:0; overflow:hidden;
    transition:max-height 0.3s ease;
  }
  nav.open{max-height:400px;}
  nav ul{flex-direction:column; gap:0; padding:8px 32px 24px;}
  nav ul li{border-bottom:1px solid var(--line);}
  nav ul li:last-child{border-bottom:none;}
  nav a{display:block; padding:14px 0;}
  nav a.active::after{display:none;}
  nav a.active{color:var(--gold);}

  .acronym-grid{grid-template-columns:1fr 1fr;}
  .acronym-item{border-bottom:1px solid var(--line);}
  .sol-grid{grid-template-columns:1fr;}
  .values-strip{flex-direction:column;}
  .value-item{border-right:none; border-bottom:1px solid var(--line);}
  .story{grid-template-columns:1fr;}
  .how-grid{grid-template-columns:1fr;}
  .solution-block{grid-template-columns:1fr; gap:20px;}
  .domain-grid{grid-template-columns:1fr;}
  .contact-wrap{grid-template-columns:1fr;}
}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  #pathway-line{transition:none;}
  .waypoint{transition:none;}
}