/* Home page explore section */
.home-links{background:var(--green);padding:0rem 0}
.home-links .section-label{color:var(--green-border)}
.explore-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;margin-top:2rem;background:rgba(255,255,255,0.12)}
.explore-card{background:var(--green);padding:2rem 2.5rem 2.5rem;border:none}
.explore-card-eyebrow{font-family:var(--mono);font-size:10px;font-weight:500;letter-spacing:0.14em;text-transform:uppercase;color:var(--green-border);margin-bottom:1rem}
.explore-card-heading{font-family:var(--serif);font-size:clamp(1.5rem,3vw,2.2rem);font-weight:400;color:#fff;line-height:1.2;margin-bottom:1.75rem}
.explore-card-link{display:inline-block;font-family:var(--mono);font-size:12px;font-weight:500;letter-spacing:0.06em;color:var(--green);background:#fff;text-decoration:none;padding:14px 28px;border-radius:2px;transition:background 0.15s,color 0.15s}
.explore-card-link:hover{background:var(--green-light);color:var(--green-text)}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#F5F4F0;
  --surface:#FFFFFF;
  --surface2:#EEECE6;
  --border:#D6D3CB;
  --border-light:#E5E2DA;
  --text:#1C1B18;
  --muted:#6A6860;
  --faint:#9E9C96;
  --green:#1A4D38;
  --green-mid:#2B7A5C;
  --green-light:#E2F0EB;
  --green-border:#AACFBF;
  --green-text:#0E3224;
  --amber:#7A4E0C;
  --amber-bg:#FBF0DA;
  --amber-border:#E8C87A;
  --blue:#1B3F6E;
  --blue-bg:#E8F0FA;
  --blue-border:#9BBDE8;
  --mono:'IBM Plex Mono',monospace;
  --sans:'IBM Plex Sans',sans-serif;
  --serif:'IBM Plex Serif',serif;
}
html{scroll-behavior:smooth}
body{font-family:var(--sans);background:var(--bg);color:var(--text);font-size:16px;line-height:1.7;font-weight:300}

/* NAV */
nav{position:sticky;top:0;z-index:100;background:rgba(245,244,240,0.96);backdrop-filter:blur(6px);border-bottom:1px solid var(--border-light);height:52px;display:flex;align-items:center;padding:0 2rem;justify-content:space-between}
.nav-logo{font-family:var(--mono);font-size:12px;font-weight:500;color:var(--green);letter-spacing:0.06em;text-decoration:none}
.nav-links{display:flex;gap:1.75rem;list-style:none}
.nav-links a{font-size:12px;font-weight:400;color:var(--muted);text-decoration:none;letter-spacing:0.03em;transition:color 0.15s}
.nav-links a:hover{color:var(--text)}

/* HERO */
.hero{max-width:90%;margin:0 auto;padding:5rem 2rem 4rem}
.hero-eyebrow{font-family:var(--mono);font-size:11px;font-weight:500;letter-spacing:0.14em;text-transform:uppercase;color:var(--green-mid);margin-bottom:1.25rem}
.hero h1{font-family:var(--serif);font-size:clamp(2rem,4.5vw,3.2rem);font-weight:400;line-height:1.2;margin-bottom:1.25rem;letter-spacing:-0.01em}
.hero h1 em{font-style:italic;color:var(--green-mid)}
.hero-lead{font-size:1.2rem;color:var(--muted);line-height:1.75;max-width:90%;margin-bottom:2rem;font-weight:300}
.hero-actions{display:flex;gap:10px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:6px;padding:9px 18px;font-family:var(--mono);font-size:11px;font-weight:500;letter-spacing:0.05em;text-decoration:none;border-radius:2px;border:1px solid transparent;cursor:pointer;transition:all 0.15s}
.btn-primary{background:var(--green);color:#fff;border-color:var(--green)}
.btn-primary:hover{background:var(--green-text)}
.btn-ghost{background:transparent;color:var(--muted);border-color:var(--border)}
.btn-ghost:hover{color:var(--text);border-color:var(--muted)}

/* LAYOUT */
.container{max-width:90%;margin:0 auto;padding:0 2rem}
hr.section-divider{border:none;border-top:1px solid var(--border-light);max-width:90%;margin:0 auto}
section{padding:4rem 0}

/* SECTION LABELS */
.section-label{font-family:var(--mono);font-size:10px;font-weight:500;letter-spacing:0.14em;text-transform:uppercase;color:var(--faint);margin-bottom:0.75rem}
h2{font-family:var(--serif);font-size:1.75rem;font-weight:400;margin-bottom:1rem;line-height:1.25}
.section-lead{font-size:1.2rem;color:var(--muted);line-height:1.75;max-width:1000px;margin-bottom:2rem}

/* PROBLEM/SOLUTION */
.ps-grid{display:grid;grid-template-columns:1fr 1fr;gap:2px;margin-top:2rem}
.ps-card{padding:1.5rem;background:var(--surface);border:1px solid var(--border-light)}
.ps-card:first-child{border-radius:3px 0 0 3px}
.ps-card:last-child{border-radius:0 3px 3px 0;border-left:none}
.ps-card-label{font-family:var(--mono);font-size:10px;font-weight:500;letter-spacing:0.12em;text-transform:uppercase;margin-bottom:1rem;padding:3px 8px;border-radius:2px;display:inline-block}
.label-problem{background:#FBE8E8;color:#8A2020;border:1px solid #E8BABA}
.label-solution{background:var(--green-light);color:var(--green-text);border:1px solid var(--green-border)}
.ps-card h4{font-size:0.9rem;font-weight:500;color:var(--text);margin-bottom:0.6rem}
.ps-card p{font-size:1rem;color:var(--muted);line-height:1.65}
.ps-card ul{font-size:1rem;color:var(--muted);line-height:1.8;padding-left:1.2rem}
.ps-card ul li{margin-bottom:0.1rem}

/* HOW IT WORKS (homepage 3-step cards) */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:2px;margin-top:2rem}
.step{background:var(--surface);border:1px solid var(--border-light);padding:1.25rem}
.step:first-child{border-radius:3px 0 0 3px}
.step:last-child{border-radius:0 3px 3px 0;border-left:none}
.step-n{font-family:var(--mono);font-size:10px;font-weight:500;color:var(--green-mid);letter-spacing:0.1em;margin-bottom:0.6rem}
.step h4{font-size:0.875rem;font-weight:500;color:var(--text);margin-bottom:0.4rem}
.step p{font-size:0.8rem;color:var(--muted);line-height:1.6}
.step code{font-family:var(--mono);font-size:0.75rem;background:var(--surface2);padding:1px 5px;border-radius:2px;color:var(--text)}

/* GUIDE (how-to-use page step-by-step list) */
.guide-list{border:1px solid var(--border-light);border-radius:3px;overflow:hidden;margin-top:2rem}
.guide-group-header{display:flex;align-items:center;gap:1.25rem;background:var(--surface2);padding:0.875rem 1.75rem;border-bottom:1px solid var(--border-light)}
.guide-group+.guide-group .guide-group-header{border-top:1px solid var(--border-light)}
.guide-group-n{font-family:var(--mono);font-size:10px;font-weight:500;letter-spacing:0.12em;text-transform:uppercase;color:var(--green-mid);flex-shrink:0}
.guide-group-title{font-family:var(--serif);font-size:1rem;font-weight:400;font-style:italic;color:var(--text)}
.guide-item{display:grid;grid-template-columns:3.5rem 1fr;gap:1.75rem;background:var(--surface);padding:1.5rem 1.75rem;border-bottom:1px solid var(--border-light)}
.guide-list>.guide-item:last-child{border-bottom:none}
.guide-group:last-child .guide-item:last-child{border-bottom:none}
.workflow-accordion{margin-top:2rem;display:flex;flex-direction:column;gap:2px}
.workflow-accordion .q-body{padding:0}
.workflow-accordion .guide-list{margin-top:0;border:none;border-radius:0}
.guide-n{font-family:var(--mono);font-size:1.5rem;font-weight:500;color:var(--green-mid);line-height:1.3;padding-top:0.1rem}
.guide-content h3{font-size:0.9rem;font-weight:500;color:var(--text);margin-bottom:0.4rem}
.guide-content p{font-size:0.875rem;color:var(--muted);line-height:1.65}
.guide-content code{font-family:var(--mono);font-size:0.75rem;background:var(--surface2);padding:1px 5px;border-radius:2px;color:var(--text)}
.guide-note{margin-top:0.6rem;padding:0.6rem 0.9rem;background:var(--surface2);border-left:2px solid var(--border);font-size:0.8rem;color:var(--muted);line-height:1.6;border-radius:0 2px 2px 0}

/* CASE STUDIES */
.cs-card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2px;margin-bottom:2.5rem}
.cs-card{background:var(--surface);border:1px solid var(--border-light);padding:1.5rem;cursor:pointer;text-align:left;transition:background 0.15s,border-color 0.15s;display:flex;flex-direction:column}
.cs-card:first-child{border-radius:3px 0 0 3px}
.cs-card:last-child{border-radius:0 3px 3px 0;border-left:none}
.cs-card:hover:not(.active){background:var(--surface2)}
.cs-card.active{background:var(--green-light);border-color:var(--green-border)}
.cs-card-db{font-family:var(--mono);font-size:10px;font-weight:500;letter-spacing:0.12em;text-transform:uppercase;color:var(--faint);margin-bottom:0.75rem}
.cs-card-disease{font-family:var(--serif);font-size:1.25rem;font-weight:400;color:var(--text);line-height:1.2;margin-bottom:0.5rem}
.cs-card.active .cs-card-disease{color:var(--green)}
.cs-card-meta{font-family:var(--mono);font-size:10px;color:var(--muted);letter-spacing:0.04em;margin-bottom:0.75rem}
.cs-panel{display:none}
.cs-panel.active{display:block}

/* SETUP BOX */
.setup-box{background:var(--surface);border:1px solid var(--border-light);border-radius:3px;padding:1.5rem;margin-bottom:1.5rem}
.setup-box h4{font-family:var(--mono);font-size:10px;font-weight:500;letter-spacing:0.12em;text-transform:uppercase;color:var(--faint);margin-bottom:1rem}
.setup-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}
.setup-item label{display:block;font-family:var(--mono);font-size:10px;color:var(--faint);letter-spacing:0.08em;text-transform:uppercase;margin-bottom:0.25rem}
.setup-item span{font-size:1rem;font-weight:400;color:var(--text)}
.setup-note{margin-top:1rem;padding-top:1rem;border-top:1px solid var(--border-light);font-size:0.875rem;color:var(--muted);line-height:1.6;font-style:italic}
.setup-source{margin-top:0.75rem;padding-top:0.75rem;border-top:1px solid var(--border-light);font-size:0.8rem;color:var(--muted);line-height:1.5}
.setup-source-label{font-family:var(--mono);font-size:9px;font-weight:500;text-transform:uppercase;letter-spacing:0.1em;color:var(--faint);margin-right:0.3rem}
.setup-source a{color:var(--green-mid);text-decoration:none}
.setup-source a:hover{text-decoration:underline}
.setup-source-pending{color:var(--faint);font-style:italic}

/* QUESTIONS ACCORDION */
.q-list{display:flex;flex-direction:column;gap:2px}
.q-item{background:var(--surface);border:1px solid var(--border-light);border-radius:3px;overflow:hidden}
.q-header{display:flex;align-items:center;gap:1rem;padding:0.9rem 1.25rem;cursor:pointer;transition:background 0.1s;user-select:none}
.q-header:hover{background:var(--surface2)}
.q-num{font-family:var(--mono);font-size:10px;font-weight:500;color:var(--faint);min-width:24px}
.q-title{font-size:1rem;font-weight:400;color:var(--text);flex:1}
.q-toggle{font-family:var(--mono);font-size:14px;color:var(--faint);transition:transform 0.2s;flex-shrink:0}
.q-item.open .q-toggle{transform:rotate(45deg);color:var(--green)}
.q-body{display:none;padding:1rem 1.25rem 1.25rem;border-top:1px solid var(--border-light)}
.q-item.open .q-body{display:block}

/* Q TABS */
.q-tabs{display:flex;gap:0;margin:1rem 0 0;border-bottom:1px solid var(--border-light)}
.q-tab{font-family:var(--mono);font-size:10px;font-weight:500;letter-spacing:0.06em;color:var(--muted);background:none;border:none;cursor:pointer;padding:8px 12px;border-bottom:1px solid transparent;margin-bottom:-1px;transition:all 0.15s}
.q-tab:hover{color:var(--text)}
.q-tab.active{color:var(--green);border-bottom-color:var(--green)}
.q-panel{display:none;padding-top:1rem}
.q-panel.active{display:block}

/* INITIALIZATION PROMPT */
.init-block{background:var(--surface);border-left:3px solid var(--green-mid);padding:0.9rem 1.1rem;font-size:1rem;color:var(--text);line-height:1.65;border-radius:0 2px 2px 0;margin-bottom:1.5rem}
.init-block::before{content:'Initialization prompt';display:block;font-family:var(--mono);font-size:10px;font-weight:500;text-transform:uppercase;letter-spacing:0.12em;color:var(--green);margin-bottom:0.5rem}

/* PROMPT */
.prompt-block{background:var(--surface);border-left:3px solid var(--green-mid);padding:0.9rem 1.1rem;font-size:1rem;color:var(--text);line-height:1.65;border-radius:0 2px 2px 0}
.prompt-block::before{content:'User prompt';display:block;font-family:var(--mono);font-size:10px;font-weight:500;text-transform:uppercase;letter-spacing:0.12em;color:var(--green);margin-bottom:0.5rem}

/* MODEL INTERPRETATION */
.interp-block{background:var(--surface);border-left:3px solid var(--blue-border);padding:0.9rem 1.1rem;font-size:0.9rem;color:var(--text);line-height:1.65;border-radius:0 2px 2px 0;margin-top:0.75rem}
.interp-block::before{content:'Model interpretation + planned variables';display:block;font-family:var(--mono);font-size:10px;font-weight:500;text-transform:uppercase;letter-spacing:0.12em;color:var(--blue);margin-bottom:0.75rem}
.interp-block p{margin-bottom:0.5rem}
.interp-block p:last-child{margin-bottom:0}
.interp-block ul,.interp-block ol{padding-left:1.4rem;margin-bottom:0.5rem}
.interp-block li{margin-bottom:0.2rem;line-height:1.6}
.interp-block code{font-family:var(--mono);font-size:0.75rem;background:var(--surface2);padding:1px 5px;border-radius:2px;color:var(--text)}
.var-chips{display:flex;flex-wrap:wrap;gap:5px;margin-top:0.5rem}
.var-chip{font-family:var(--mono);font-size:10px;background:var(--surface);border:1px solid var(--blue-border);border-radius:2px;padding:2px 7px;color:var(--blue)}

/* SCRIPT BLOCK */
.script-block{background:var(--surface);border-left:3px solid var(--blue-border);padding:0.9rem 1.1rem;border-radius:0 2px 2px 0;margin-top:0.75rem}
.script-block::before{content:'Script';display:block;font-family:var(--mono);font-size:10px;font-weight:500;text-transform:uppercase;letter-spacing:0.12em;color:var(--blue);margin-bottom:0.5rem}
.script-block .code-wrap{margin:0}

/* RESULT BLOCK */
.result-block{background:var(--surface);border-left:3px solid var(--blue-border);padding:0.9rem 1.1rem;border-radius:0 2px 2px 0;margin-top:0.75rem}
.result-block::before{content:'Output';display:block;font-family:var(--mono);font-size:10px;font-weight:500;text-transform:uppercase;letter-spacing:0.12em;color:var(--blue);margin-bottom:0.5rem}
.result-block .output-number,.result-block .output-img{margin-top:0}

/* CODE BLOCK */
.code-wrap{background:#1A1A16;border-radius:3px;overflow:hidden;margin:0.75rem 0;position:relative}
.code-lang{position:absolute;top:10px;right:14px;font-family:var(--mono);font-size:9px;font-weight:500;letter-spacing:0.1em;text-transform:uppercase;color:#555;z-index:1}
.code-wrap pre[class*="language-"]{background:transparent;margin:0;padding:1.1rem 1.25rem;font-family:var(--mono);font-size:0.78rem;line-height:1.75;color:#C8C5BC}
.code-wrap code[class*="language-"]{background:transparent;font-family:var(--mono);font-size:0.78rem;color:#C8C5BC}
/* Prism token colors matching original style */
.code-wrap .token.keyword{color:#6EB4D4}
.code-wrap .token.function{color:#85C99A}
.code-wrap .token.builtin{color:#85C99A}
.code-wrap .token.string{color:#D4A85A}
.code-wrap .token.comment{color:#555;font-style:italic}
.code-wrap .token.number{color:#B07AC8}
.code-wrap .token.operator{color:#D0CBC0}
.code-wrap .token.punctuation{color:#D0CBC0}

/* OUTPUT */
.output-img{width:100%;max-width:400px;border-radius:2px;border:1px solid var(--border-light);display:block;margin:0.5rem auto 0}
.output-img-table{display:flex;gap:3rem;align-items:center;justify-content:center;margin-top:0.5rem}
.output-img-table .output-img{flex:0 1 520px;min-width:0;margin:0}
.output-table{flex-shrink:0;border-collapse:collapse;font-size:0.875rem}
.output-table th{font-family:var(--mono);font-size:10px;font-weight:500;letter-spacing:0.08em;text-transform:uppercase;color:var(--faint);padding:0.4rem 0.9rem;text-align:left;border-bottom:2px solid var(--border)}
.output-table td{padding:0.4rem 0.9rem;color:var(--text);border-bottom:1px solid var(--border-light)}
.output-table tr:last-child td{border-bottom:none;font-weight:500;color:var(--green)}
.output-number{font-family:var(--mono);font-size:2rem;font-weight:500;color:var(--green);padding:1.5rem;background:var(--green-light);border:1px solid var(--green-border);border-radius:3px;text-align:center;margin-top:0.5rem}
.output-number span{display:block;font-size:0.75rem;font-weight:400;color:var(--green-mid);letter-spacing:0.08em;text-transform:uppercase;margin-top:0.25rem}

/* PLACEHOLDER (coming soon) */
.placeholder{background:var(--surface2);border:1px dashed var(--border);border-radius:3px;padding:2rem;text-align:center;color:var(--faint);font-size:0.8rem;margin-top:0.5rem}

/* SCOPE REJECTION */
.rejection{background:var(--amber-bg);border-left:3px solid var(--amber);padding:0.9rem 1.1rem;font-size:0.875rem;color:#5A3A08;line-height:1.65;border-radius:0 2px 2px 0}
.rejection::before{content:'Framework response — out of scope';display:block;font-family:var(--mono);font-size:9px;font-weight:500;text-transform:uppercase;letter-spacing:0.12em;color:var(--amber);margin-bottom:0.5rem}

/* CITE */
.cite-card{background:var(--surface);border:1px solid var(--border-light);border-radius:3px;padding:1.5rem;margin-top:1.5rem}
.cite-text{font-family:var(--serif);font-size:0.9rem;font-style:italic;color:var(--muted);line-height:1.75;margin-bottom:1rem}
.cite-links{display:flex;gap:8px;flex-wrap:wrap}
.cite-link{font-family:var(--mono);font-size:10px;font-weight:500;letter-spacing:0.05em;color:var(--green-mid);background:var(--green-light);border:1px solid var(--green-border);padding:4px 10px;border-radius:2px;text-decoration:none;transition:all 0.15s}
.cite-link:hover{background:var(--green);color:#fff;border-color:var(--green)}

/* FOOTER */
footer{border-top:1px solid var(--border-light);max-width:90%;margin:0 auto;padding:2rem;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem}
footer p{font-size:0.78rem;color:var(--faint)}
footer a{color:var(--muted);text-decoration:none}
footer a:hover{color:var(--text)}

/* LANG SWITCH */
.lang-switch{display:flex;gap:2px;align-items:center}
.lang-btn{font-family:var(--mono);font-size:11px;font-weight:500;letter-spacing:0.06em;color:var(--muted);background:none;border:1px solid transparent;padding:3px 8px;border-radius:2px;cursor:pointer;transition:all 0.15s}
.lang-btn:hover{color:var(--text)}
.lang-btn.active{color:var(--green);border-color:var(--border);background:var(--surface)}

/* Portuguese overrides for CSS pseudo-element labels */
:lang(pt-BR) .init-block::before{content:'Prompt de inicialização'}
:lang(pt-BR) .prompt-block::before{content:'Prompt do usuário'}
:lang(pt-BR) .interp-block::before{content:'Interpretação do modelo + variáveis planejadas'}
:lang(pt-BR) .script-block::before{content:'Script'}
:lang(pt-BR) .result-block::before{content:'Resultado'}
:lang(pt-BR) .rejection::before{content:'Resposta do framework — fora do escopo'}

/* Workflow section */
.workflow-section{padding:4rem 0}
.workflow-img-wrap{margin-top:2rem;max-width:980px; margin-left: auto;margin-right: auto;}
.workflow-img-wrap img{width:100%;height:auto;display:block}

/* Video section */
.video-section{padding:4rem 0}
.video-wrapper{position:relative;aspect-ratio:16/9;max-width:70%;margin:2rem auto 0;border-radius:4px;overflow:hidden}
.video-wrapper iframe{position:absolute;inset:0;width:100%;height:100%;}

@media(max-width:640px){
  .output-img-table{flex-direction:column}
  .output-img-table .output-img{max-width:100%}
  .ps-grid,.steps,.setup-grid{grid-template-columns:1fr}
  .ps-card:last-child{border-left:1px solid var(--border-light);border-top:none;border-radius:0 0 3px 3px}
  .ps-card:first-child{border-radius:3px 3px 0 0}
  .step:last-child{border-left:1px solid var(--border-light);border-top:none;border-radius:0 0 3px 3px}
  .step:first-child{border-radius:3px 3px 0 0}
  .cs-card-grid{grid-template-columns:1fr}
  .cs-card:first-child{border-radius:3px 3px 0 0}
  .cs-card:last-child{border-radius:0 0 3px 3px;border-left:1px solid var(--border-light);border-top:none}
  .guide-item{grid-template-columns:2.5rem 1fr;gap:1rem;padding:1.25rem}
}