:root{
  --navy:#102a35;
  --navy-2:#173946;
  --teal:#176172;
  --teal-2:#238294;
  --teal-soft:#e6f0f1;
  --gold:#b28a45;
  --gold-soft:#f3ebda;
  --ink:#17222b;
  --text:#32424d;
  --muted:#71808a;
  --paper:#f3f1eb;
  --paper-2:#f8f7f3;
  --card:#ffffff;
  --line:#dfe4e5;
  --line-dark:#c9d0d2;
  --danger:#9c3a45;
  --success:#27684f;
  --shadow-sm:0 2px 8px rgba(16,42,53,.06);
  --shadow:0 14px 34px rgba(16,42,53,.10);
  --shadow-lg:0 28px 70px rgba(9,31,39,.16);
  --radius:18px;
  --radius-sm:11px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.58}
a{color:var(--teal);text-decoration:none}
a:hover{text-decoration:none}
h1,h2,h3,h4{font-family:Georgia,"Times New Roman",serif;line-height:1.08;color:var(--navy);margin:0 0 .62em}
h1{font-size:clamp(2.15rem,4.5vw,4rem);letter-spacing:-.035em}
h2{font-size:clamp(1.45rem,2.6vw,2.15rem);letter-spacing:-.02em}
h3{font-size:1.26rem}
p{margin:.55em 0 1em;color:var(--text)}
ul{color:var(--text)}
code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;background:#eef2f2;padding:2px 6px;border-radius:6px}
.eyebrow{font:800 .72rem/1.2 Inter,system-ui,sans-serif;text-transform:uppercase;letter-spacing:.16em;color:var(--teal);margin-bottom:12px}
.lede{font-size:1.15rem;max-width:840px;color:#53636d}
.muted{color:var(--muted)}
.button,button,input[type=submit]{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:10px;background:var(--teal);color:#fff!important;padding:11px 17px;font:750 .93rem/1 Inter,system-ui,sans-serif;cursor:pointer;text-decoration:none;min-height:42px;transition:.18s ease}
.button:hover,button:hover,input[type=submit]:hover{transform:translateY(-1px);background:var(--teal-2);box-shadow:0 8px 18px rgba(23,97,114,.18)}
.button.secondary{background:#fff;color:var(--teal)!important;border:1px solid #a9c3c8}
.button.subtle{background:var(--teal-soft);color:var(--teal)!important}
.button.danger{background:var(--danger)}
.button-small{padding:9px 14px;min-height:38px}
.actions{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0}
.badge{display:inline-flex;align-items:center;padding:5px 9px;border-radius:999px;background:var(--teal-soft);font:750 .74rem/1 Inter,system-ui,sans-serif;color:var(--teal);margin-top:6px}
.badge.ok{background:#e7f3ed;color:var(--success)}
.badge.warn{background:#f7edd9;color:#7b5a1d}
.notice{padding:13px 16px;border-radius:12px;margin:0 0 18px;border:1px solid}
.notice.success{background:#eaf5ef;color:#245d48;border-color:#bedbcc}
.notice.error{background:#faecee;color:#7e2933;border-color:#e4c0c5}
.notice.info{background:#eaf3f5;color:#285462;border-color:#bfd4d9}
.card,.panel,.hero-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm)}
.card{padding:24px;margin:16px 0}
.panel{padding:20px}
.grid{display:grid;gap:18px}
.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}
.stat{font-family:Georgia,serif;font-size:2.35rem;color:var(--navy);font-weight:700}
.progress{height:9px;background:#e5e9e9;border-radius:999px;overflow:hidden}
.progress>span{display:block;height:100%;background:linear-gradient(90deg,var(--teal),#45a2ad);border-radius:inherit}
.callout{border:1px solid #dfd1b6;background:#fcf8ef;padding:17px 19px;border-radius:13px;margin:18px 0;box-shadow:var(--shadow-sm)}
.private{border:1px solid #c9d8db;background:#f2f7f7;padding:14px 16px;border-radius:12px;color:#36545d}
form .field{margin:15px 0}
label{display:block;font-weight:750;color:#243842;margin-bottom:7px;font-size:.92rem}
input[type=text],input[type=email],input[type=password],input[type=number],input[type=date],select,textarea{
 width:100%;padding:12px 13px;border:1px solid var(--line-dark);border-radius:10px;background:#fff;color:var(--ink);font:inherit;outline:none;transition:.15s
}
input:focus,select:focus,textarea:focus{border-color:#6ca4af;box-shadow:0 0 0 3px rgba(35,130,148,.11)}
textarea{min-height:128px;resize:vertical}
.help{font-size:.84rem;color:var(--muted);margin-top:6px}
.quiz-question{padding:18px;border:1px solid var(--line);border-radius:14px;background:#fff;margin:14px 0}
.quiz-question .option{display:block;padding:10px 11px;border:1px solid transparent;border-radius:9px;margin:7px 0;font-weight:500;color:var(--text)}
.quiz-question .option:hover{background:var(--paper-2);border-color:var(--line)}
.challenge{border-left:4px solid var(--gold);background:#fcf8ef;border-radius:9px;padding:12px 14px;margin:9px 0;color:#4a3d25}
.thinking-cycle{display:flex;flex-wrap:wrap;gap:7px;margin:16px 0}
.thinking-cycle span{padding:7px 10px;border-radius:999px;background:var(--teal-soft);border:1px solid #c5dadd;font:800 .72rem/1 Inter,system-ui,sans-serif;color:#2f6874;letter-spacing:.035em}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:14px;background:#fff}
table{border-collapse:collapse;width:100%;background:#fff}
th,td{padding:11px 13px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
th{background:#edf2f2;color:#31505a;font-size:.82rem;text-transform:uppercase;letter-spacing:.05em}
.score-grid{display:grid;grid-template-columns:repeat(5,minmax(110px,1fr));gap:10px}
.score-box{background:#fff;border:1px solid var(--line);padding:13px;border-radius:12px}
.score-num{font-family:Georgia,serif;font-size:1.55rem;color:var(--navy);font-weight:700}

/* PUBLIC SITE */
.public-body{background:var(--paper);min-height:100vh}
.public-header{position:sticky;top:0;z-index:30;background:rgba(248,247,243,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(201,208,210,.8)}
.public-nav,.public-main,.public-footer-inner{width:min(1180px,calc(100% - 36px));margin:0 auto}
.public-nav{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.public-brand,.app-brand{display:flex;align-items:center;gap:11px;color:var(--navy);text-decoration:none}
.public-brand strong,.app-brand strong{display:block;font-family:Georgia,serif;font-size:1.02rem;line-height:1.05}
.public-brand small,.app-brand small{display:block;font-size:.69rem;color:var(--muted);margin-top:3px;letter-spacing:.03em}
.app-brand-mark{display:grid;place-items:center;flex:0 0 auto;width:40px;height:40px;border-radius:12px;background:linear-gradient(145deg,var(--teal),var(--navy));color:#fff;font:800 .82rem/1 Inter,sans-serif;letter-spacing:.06em;box-shadow:0 8px 18px rgba(16,42,53,.2)}
.public-links{display:flex;gap:21px;align-items:center}
.public-links>a:not(.button){font-size:.91rem;font-weight:700;color:#45545d}
.public-main{padding:0 0 70px}
.public-footer{background:var(--navy);color:#d9e4e6;padding:34px 0}
.public-footer-inner{display:flex;justify-content:space-between;gap:30px;align-items:flex-start}
.public-footer strong{font-family:Georgia,serif;color:#fff}
.public-footer p{color:#9fb4ba;font-size:.85rem}
.footer-links{display:flex;gap:18px;flex-wrap:wrap}
.footer-links a{color:#d8e6e8;font-size:.88rem}

/* APP SHELL */
.app-body{background:#eef1ef}
.app-shell{min-height:100vh;display:grid;grid-template-columns:252px minmax(0,1fr)}
.app-sidebar{position:sticky;top:0;height:100vh;background:var(--navy);color:#d9e5e6;padding:21px 16px 18px;display:flex;flex-direction:column;overflow-y:auto}
.app-brand{padding:3px 7px 22px;color:#fff}
.app-brand small{color:#91aab0}
.side-label{font:800 .63rem/1 Inter,sans-serif;letter-spacing:.16em;color:#6f929a;padding:16px 11px 7px}
.side-nav{display:grid;gap:4px}
.side-nav a{display:flex;align-items:center;gap:11px;color:#c6d7da;padding:10px 11px;border-radius:9px;font-size:.89rem;font-weight:650;transition:.15s}
.side-nav a:hover,.side-nav a.is-active{background:#1a3d49;color:#fff}
.nav-icon{width:23px;text-align:center;color:#80aab3;font-weight:800}
.side-nav a.is-active .nav-icon{color:#e3be73}
.sidebar-bottom{margin-top:auto}
.patent-mini{border-top:1px solid #244754;margin-top:16px;padding:16px 11px 2px;font-size:.69rem;line-height:1.5;color:#6f929a}
.app-stage{min-width:0;display:flex;flex-direction:column;min-height:100vh}
.app-topbar{height:68px;background:rgba(255,255,255,.95);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:flex-end;padding:0 30px;position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
.mobile-brand{display:none}
.topbar-right{display:flex;gap:14px;align-items:center}
.learner-chip{background:#eef4f4;color:#365963;border:1px solid #d6e1e2;border-radius:999px;padding:7px 11px;font-size:.82rem;font-weight:750}
.logout-link{font-size:.82rem;color:var(--muted);font-weight:700}
.app-content{width:min(1120px,calc(100% - 52px));margin:0 auto;padding:34px 0 64px;flex:1}
.app-content>h1{font-size:clamp(2.15rem,4vw,3.4rem)}
.app-footer{display:flex;gap:8px;align-items:center;flex-wrap:wrap;padding:17px 28px;border-top:1px solid var(--line);background:#f8f9f7;color:var(--muted);font-size:.73rem}
.app-footer a{color:var(--muted)}
.footer-spacer{flex:1}

/* DASHBOARD */
.dashboard-hero{background:linear-gradient(135deg,var(--navy),#184755);border-radius:22px;padding:31px;color:#fff;display:grid;grid-template-columns:1.25fr .75fr;gap:28px;box-shadow:var(--shadow-lg);margin-bottom:22px}
.dashboard-hero h1{color:#fff;font-size:clamp(2rem,4vw,3.15rem)}
.dashboard-hero p{color:#c3d7da;max-width:700px}
.dashboard-hero .eyebrow{color:#84c3cc}
.hero-progress{align-self:center;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.13);border-radius:16px;padding:21px}
.hero-progress .big-number{font-family:Georgia,serif;font-size:3.35rem;color:#fff;line-height:1}
.hero-progress .progress{background:rgba(255,255,255,.12);margin:13px 0 9px}
.hero-progress .progress>span{background:linear-gradient(90deg,#d6b66d,#f0cf83)}
.quick-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin:18px 0 22px}
.quick-card{display:block;background:#fff;border:1px solid var(--line);border-radius:15px;padding:17px;box-shadow:var(--shadow-sm);color:var(--ink);transition:.18s}
.quick-card:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:#bfd1d4}
.quick-icon{width:38px;height:38px;border-radius:11px;background:var(--teal-soft);display:grid;place-items:center;color:var(--teal);font-weight:900;margin-bottom:20px}
.quick-card strong{display:block;color:var(--navy);margin-bottom:3px}
.quick-card small{color:var(--muted);line-height:1.35}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin:30px 0 10px}
.section-head h2{margin:0}

/* COURSE */
.course-summary{display:grid;grid-template-columns:1fr 220px;gap:22px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;margin:18px 0 26px}
.course-ring{width:142px;height:142px;border-radius:50%;background:conic-gradient(var(--teal) var(--pct,0%),#e7ecec 0);display:grid;place-items:center;margin:auto}
.course-ring:before{content:"";width:108px;height:108px;border-radius:50%;background:#fff;position:absolute}
.course-ring span{position:relative;z-index:1;font-family:Georgia,serif;font-size:1.65rem;color:var(--navy)}
.course-group{margin:30px 0}
.course-group-title{display:flex;align-items:center;gap:11px;margin-bottom:11px}
.course-group-title .num{width:29px;height:29px;border-radius:50%;display:grid;place-items:center;background:var(--gold-soft);color:#7a5b24;font-weight:850;font-size:.78rem}
.module-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.module-row{display:grid;grid-template-columns:48px minmax(0,1fr) auto;gap:13px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px;box-shadow:var(--shadow-sm);transition:.15s}
.module-row:hover{border-color:#b9ced2;box-shadow:var(--shadow)}
.module-no{width:40px;height:40px;display:grid;place-items:center;border-radius:11px;background:#edf3f3;font:800 .85rem/1 Inter,sans-serif;color:var(--teal)}
.module-row h3{margin:0 0 4px;font-family:Inter,system-ui,sans-serif;font-size:.95rem;line-height:1.25;color:#20343e}
.module-action{align-self:center}

/* MODULE / LESSON */
.lesson-header{background:linear-gradient(135deg,#f8fbfa,#eef4f3);border:1px solid #d9e5e4;border-radius:20px;padding:27px;margin-bottom:18px}
.lesson-header h1{font-size:clamp(2.05rem,4vw,3.25rem)}
.lesson-meta{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.lesson-layout{display:grid;grid-template-columns:minmax(0,1fr) 265px;gap:22px;align-items:start}
.lesson-main .card{padding:25px}
.lesson-rail{position:sticky;top:88px}
.rail-card{background:#fff;border:1px solid var(--line);border-radius:15px;padding:17px;margin-bottom:13px}
.rail-card h3{font-family:Inter,system-ui,sans-serif;font-size:.91rem;text-transform:uppercase;letter-spacing:.06em;color:#52646d}
.objective-list{padding-left:18px;margin:0}
.objective-list li{margin:8px 0}
.scenario-card{background:var(--navy);border-radius:17px;padding:23px;margin:17px 0;box-shadow:var(--shadow)}
.scenario-card h2,.scenario-card h3{color:#fff}
.scenario-card p{color:#c9dade}
.scenario-card .scenario-task{background:rgba(255,255,255,.08);border-left:3px solid #dfbd72;padding:12px 14px;border-radius:7px;color:#fff}
.source-box{background:#f6f7f4;border:1px solid var(--line);border-radius:13px;padding:15px 17px}

/* PROBLEM SOLVER */
.workflow-steps{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin:18px 0 25px}
.workflow-step{padding:9px 8px;border-radius:10px;background:#e7eeee;text-align:center;font-size:.72rem;font-weight:800;color:#456771}
.workflow-step strong{display:block;font-size:.63rem;letter-spacing:.08em;color:#78939a}
.workflow-card{border-left:4px solid var(--teal)}
.workflow-card h2{font-family:Inter,system-ui,sans-serif;font-size:1.15rem;color:var(--navy);display:flex;align-items:center;gap:9px}
.workflow-num{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:var(--teal);color:#fff;font-size:.75rem}

/* CERTIFICATE */
.certificate{background:#fff;border:7px double var(--gold);padding:46px;min-height:650px;text-align:center;display:flex;flex-direction:column;justify-content:center;box-shadow:var(--shadow)}
.certificate h1{font-size:2.8rem}
.certificate .name{font-family:Georgia,serif;font-size:2.35rem;margin:22px auto;border-bottom:1px solid var(--gold);display:inline-block;padding:0 35px 7px}
.certificate .seal{width:100px;height:100px;border:2px solid var(--gold);border-radius:50%;display:grid;place-items:center;margin:20px auto;font-weight:800;color:#805f2d}

/* RESPONSIVE */
@media(max-width:1050px){
  .quick-grid{grid-template-columns:repeat(2,1fr)}
  .lesson-layout{grid-template-columns:1fr}
  .lesson-rail{position:static;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
  .module-list{grid-template-columns:1fr}
}
@media(max-width:820px){
  .public-links>a:not(.button){display:none}
  .public-nav{min-height:66px}
  .public-brand small{display:none}
  .app-shell{display:block}
  .app-sidebar{position:static;height:auto;padding:0;background:var(--navy-2);display:block;overflow:visible}
  .app-brand,.side-label,.sidebar-bottom{display:none}
  .side-nav{display:flex;overflow-x:auto;gap:0;border-top:1px solid rgba(255,255,255,.06)}
  .side-nav:nth-of-type(2){display:none}
  .side-nav a{white-space:nowrap;border-radius:0;padding:10px 13px;font-size:.76rem}
  .app-topbar{height:60px;padding:0 16px;justify-content:space-between;position:static}
  .mobile-brand{display:flex;align-items:center;gap:9px;color:var(--navy)}
  .mobile-brand .app-brand-mark{width:32px;height:32px;border-radius:9px}
  .learner-chip{display:none}
  .app-content{width:min(100% - 28px,1120px);padding:23px 0 46px}
  .dashboard-hero{grid-template-columns:1fr;padding:24px}
  .quick-grid,.grid.two,.grid.three{grid-template-columns:1fr}
  .course-summary{grid-template-columns:1fr}
  .course-ring{display:none}
  .lesson-rail{grid-template-columns:1fr}
  .score-grid{grid-template-columns:repeat(2,1fr)}
  .workflow-steps{grid-template-columns:repeat(3,1fr)}
  .public-footer-inner{flex-direction:column}
}
@media(max-width:520px){
  h1{font-size:2.1rem}
  .public-nav,.public-main,.public-footer-inner{width:min(100% - 24px,1180px)}
  .public-links .button{font-size:.76rem;padding:8px 10px}
  .quick-grid{grid-template-columns:1fr}
  .module-row{grid-template-columns:44px 1fr}
  .module-action{grid-column:2}
  .workflow-steps{grid-template-columns:repeat(2,1fr)}
}
@media print{
  .app-sidebar,.app-topbar,.app-footer,.public-header,.public-footer,.no-print,.actions{display:none!important}
  .app-shell,.app-stage{display:block}.app-content,.public-main{width:100%;padding:0}
  body{background:#fff}.certificate{box-shadow:none;min-height:96vh}
}

/* LANDING PAGE */
.landing-hero{min-height:650px;padding:74px 0 68px;display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center}
.landing-copy h1 em{color:var(--teal);font-style:normal}
.landing-lede{font-size:1.2rem;color:#52636d;max-width:660px}
.button-primary-large{padding:14px 20px;min-height:48px;font-size:.96rem}
.trust-row{display:flex;gap:20px;flex-wrap:wrap;margin-top:27px;color:#64747d;font-size:.78rem;font-weight:700}
.trust-row span:before{content:"✓";color:var(--teal);margin-right:6px}
.decision-demo{background:#fff;border:1px solid #d5ddde;border-radius:22px;box-shadow:var(--shadow-lg);overflow:hidden;transform:rotate(1deg)}
.demo-top{height:45px;padding:0 16px;background:#f5f7f6;display:flex;align-items:center;gap:8px;border-bottom:1px solid var(--line);font-size:.65rem;font-weight:800;letter-spacing:.08em;color:#61727a}
.demo-dot{width:8px;height:8px;border-radius:50%;background:var(--teal)}
.demo-status{margin-left:auto;background:#e8f3ef;color:#3d725b;border-radius:999px;padding:4px 7px}
.demo-question{padding:22px 20px 16px;font-family:Georgia,serif;font-size:1.7rem;color:var(--navy)}
.demo-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;padding:0 20px}
.demo-box{border:1px solid var(--line);border-radius:12px;padding:13px;background:#fafbfa}
.demo-box.warning{background:#fff9ee;border-color:#e6d5b3}
.demo-box small{display:block;font-size:.59rem;font-weight:850;letter-spacing:.1em;color:#829198}
.demo-box strong{display:block;font-size:.88rem;color:#25424c;margin:4px 0 2px}
.demo-box span{font-size:.72rem;color:#74848b}
.demo-challenge{margin:14px 20px;background:var(--navy);border-radius:13px;padding:16px;color:#fff}
.demo-challenge p{color:#d2e0e2;margin:5px 0 0;font-size:.86rem}
.challenge-label{font-size:.58rem;letter-spacing:.12em;font-weight:850;color:#dfbd72}
.demo-footer{display:flex;gap:7px;flex-wrap:wrap;padding:14px 20px 20px}
.demo-footer span{font-size:.58rem;font-weight:850;color:#4f727b;background:#edf4f4;padding:5px 7px;border-radius:999px}
.proof-strip{display:grid;grid-template-columns:repeat(3,1fr);background:var(--navy);border-radius:18px;overflow:hidden;box-shadow:var(--shadow)}
.proof-strip>div{padding:22px 24px;border-right:1px solid rgba(255,255,255,.09)}
.proof-strip>div:last-child{border-right:0}
.proof-strip strong{display:block;color:#fff;font-family:Georgia,serif;font-size:1.02rem}
.proof-strip span{display:block;color:#9fb8be;font-size:.79rem;margin-top:4px}
.landing-section{padding:88px 0 20px}
.section-intro{max-width:790px;margin-bottom:34px}
.section-intro.narrow{max-width:650px}
.section-intro h2{font-size:clamp(2rem,3.7vw,3.15rem)}
.section-intro p{font-size:1.06rem}
.method-path{display:grid;grid-template-columns:1fr auto 1fr auto 1fr auto 1fr auto 1fr;gap:11px;align-items:stretch}
.method-node{background:#fff;border:1px solid var(--line);border-radius:15px;padding:18px;min-height:155px}
.method-node>span{display:block;color:var(--gold);font-size:.7rem;font-weight:850;letter-spacing:.08em}
.method-node>strong{display:block;font-family:Georgia,serif;color:var(--navy);font-size:1.2rem;margin:15px 0 6px}
.method-node p{font-size:.79rem;color:#687982;margin:0}
.method-arrow{display:grid;place-items:center;color:#99aaaf;font-size:1.35rem}
.surface-section{position:relative}
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}
.feature-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:18px;padding:23px;min-height:300px;box-shadow:var(--shadow-sm);overflow:hidden}
.feature-card:before{content:"";position:absolute;inset:0 0 auto 0;height:4px;background:var(--teal)}
.feature-card.feature-problem:before{background:var(--gold)}
.feature-card.feature-lab:before{background:#537993}
.feature-card.feature-review:before{background:#536b58}
.feature-number{position:absolute;top:18px;right:18px;color:#bdc6c8;font-size:.68rem;font-weight:850}
.feature-icon{width:42px;height:42px;border-radius:12px;background:var(--teal-soft);display:grid;place-items:center;color:var(--teal);font-weight:900;margin:9px 0 24px}
.feature-card h3{font-size:1.25rem}
.feature-card p{font-size:.88rem;color:#5f7079;min-height:105px}
.feature-card a{font-size:.81rem;font-weight:800}
.audience-section{padding-bottom:68px}
.audience-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.audience-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:25px}
.audience-kicker{font-size:.65rem;font-weight:900;letter-spacing:.12em;color:var(--teal);margin-bottom:12px}
.audience-card h3{font-size:1.26rem;min-height:90px}
.audience-card ul{padding-left:18px;margin-top:20px}
.audience-card li{margin:7px 0;color:#5c6d75;font-size:.86rem}
.ai-boundary{background:var(--navy);border-radius:24px;display:grid;grid-template-columns:1fr 1fr;gap:46px;align-items:center;padding:48px;margin:28px 0 88px;box-shadow:var(--shadow-lg)}
.ai-boundary h2{color:#fff;font-size:clamp(2rem,3.5vw,3rem)}
.ai-boundary p{color:#b9cdd1}
.ai-boundary .eyebrow{color:#7ec0c9}
.boundary-points{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}
.boundary-points span{background:rgba(255,255,255,.08);color:#d9e7e9;border:1px solid rgba(255,255,255,.08);border-radius:999px;padding:7px 9px;font-size:.7rem;font-weight:700}
.boundary-visual{display:grid;gap:11px}
.outside-ai,.inside-system{border-radius:15px;padding:18px;text-align:center}
.outside-ai{background:#edf2f2;color:#5e737a;font-size:.67rem;font-weight:850;letter-spacing:.1em}
.outside-ai div{font-family:Georgia,serif;font-size:1.15rem;color:#36515a;letter-spacing:0;margin-top:4px}
.boundary-line{height:42px;display:grid;place-items:center;border-left:2px dashed #567983;margin-left:50%;position:relative}
.boundary-line span{position:absolute;background:var(--navy);color:#82a6ae;font-size:.56rem;font-weight:850;letter-spacing:.09em;padding:0 8px;white-space:nowrap}
.inside-system{background:#163b48;border:1px solid #2a5664}
.inside-system>span{display:block;color:#79b5be;font-size:.58rem;font-weight:850;letter-spacing:.12em}
.inside-system strong{display:block;font-family:Georgia,serif;color:#fff;font-size:1.65rem;line-height:1.18;margin:14px 0}
.inside-system small{color:#92aeb4}
.certificate-section{display:grid;grid-template-columns:.8fr 1.2fr;gap:54px;align-items:center;padding-bottom:90px}
.certificate-preview{padding:22px}
.certificate-mini{background:#fff;border:5px double var(--gold);box-shadow:var(--shadow);padding:32px 22px;text-align:center;transform:rotate(-1.3deg)}
.cert-top{font-size:.52rem;letter-spacing:.12em;color:#7f7056;font-weight:850}
.certificate-mini h3{font-size:1.7rem;margin:18px 0 8px}
.certificate-mini p{font-size:.76rem;margin:5px}
.certificate-mini>strong{font-family:Georgia,serif;color:var(--navy);font-size:1.05rem}
.cert-seal{width:55px;height:55px;border:2px solid var(--gold);border-radius:50%;display:grid;place-items:center;margin:18px auto;color:#80622c;font-weight:850}
.certificate-mini small{color:#8c9496}
.certificate-copy h2{font-size:clamp(2rem,3.6vw,3.1rem)}
.check-list{list-style:none;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:9px}
.check-list li{background:#fff;border:1px solid var(--line);border-radius:10px;padding:10px 12px;color:#4e626b;font-size:.84rem}
.check-list li:before{content:"✓";color:var(--teal);font-weight:900;margin-right:8px}
.pricing-cta{display:grid;grid-template-columns:1fr 320px;gap:50px;align-items:center;background:#e8eeee;border:1px solid #d3dfdf;border-radius:24px;padding:42px;margin-bottom:30px}
.pricing-cta h2{font-size:clamp(2rem,3.5vw,2.9rem)}
.price-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:var(--shadow-sm)}
.price{font-family:Georgia,serif;font-size:2.6rem;color:var(--navy)}
.per{color:var(--muted);font-size:.86rem}
.price-card p{margin:0 0 16px}
.price-card small{display:block;color:var(--muted);font-size:.71rem;margin-top:12px;line-height:1.45}
.patent-band{border-top:1px solid var(--line);padding:24px 0 2px;display:flex;justify-content:space-between;gap:20px;color:#66767e;font-size:.76rem}
.patent-band strong{color:#394e57}

@media(max-width:1000px){
 .landing-hero{grid-template-columns:1fr;padding-top:55px}.decision-demo{max-width:680px;transform:none}
 .feature-grid{grid-template-columns:repeat(2,1fr)}.method-path{grid-template-columns:1fr 1fr}.method-arrow{display:none}
 .audience-grid{grid-template-columns:1fr}.audience-card h3{min-height:0}
 .ai-boundary,.certificate-section,.pricing-cta{grid-template-columns:1fr}
 .certificate-preview{max-width:480px;margin:auto}
}
@media(max-width:680px){
 .landing-hero{padding:42px 0}.landing-copy h1{font-size:2.8rem}
 .proof-strip{grid-template-columns:1fr}.proof-strip>div{border-right:0;border-bottom:1px solid rgba(255,255,255,.09)}
 .feature-grid,.method-path,.check-list{grid-template-columns:1fr}
 .demo-grid{grid-template-columns:1fr}.ai-boundary{padding:28px 20px}.pricing-cta{padding:28px 20px}
 .patent-band{flex-direction:column}
}