/**
 * ai.css – "AI at Alixco" page (/alixco/ai). Audit ref: F-29.
 * Consumes the global design tokens (tokens.css → var(--c-*)); no hard-coded
 * brand colours, so it re-brands and dark-modes with the rest of web2.
 * Loaded after tokens.css/newlayout.css. Scroll-reveal: resources/ai.js.
 * All illustrations are inline SVG styled here (crawler-friendly, no images).
 */

.ai-wrap{max-width:var(--container-max);margin:0 auto;padding:0 16px}
.ai-section{padding:48px 0}
@media(max-width:768px){.ai-section{padding:34px 0}}

/* ---- Buttons ---- */
.ai-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--font-button);font-weight:700;font-size:15px;text-decoration:none;
  min-height:46px;padding:0 24px;border-radius:var(--r-btn);cursor:pointer;
  transition:background .2s,color .2s,transform .2s,box-shadow .2s}
.ai-btn-primary{background:var(--c-green);color:var(--c-btn-text);box-shadow:var(--shadow)}
.ai-btn-primary:hover{background:var(--c-green-hover);transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.ai-btn-ghost{background:transparent;color:var(--c-blue);border:1.5px solid var(--c-line)}
.ai-btn-ghost:hover{background:var(--c-chip);border-color:var(--c-blue)}

/* ---- Section headings ---- */
.ai-sec-head{text-align:center;max-width:720px;margin:0 auto 34px}
.ai-sec-head h2{font-family:var(--font-display);font-weight:700;font-size:29px;line-height:1.2;color:var(--c-text);margin:0 0 10px}
.ai-sec-head p{font-size:17px;line-height:1.6;color:var(--c-muted);margin:0}
@media(max-width:768px){.ai-sec-head h2{font-size:23px}.ai-sec-head p{font-size:16px}}

/* ============ HERO ============ */
.ai-hero{background:linear-gradient(180deg,var(--c-bg) 0%,var(--c-card-2) 100%);
  padding:52px 0 40px;overflow:hidden}
.ai-hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.ai-eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-button);
  font-weight:700;font-size:12.5px;letter-spacing:1.4px;text-transform:uppercase;
  color:var(--c-blue);background:var(--c-chip);border:1px solid var(--c-line);
  padding:7px 14px;border-radius:var(--r-pill);margin-bottom:16px}
.ai-eyebrow svg{width:16px;height:16px;fill:none;stroke:var(--c-orange);stroke-width:2;
  stroke-linecap:round;stroke-linejoin:round}
.ai-hero-copy h1{font-family:var(--font-display);font-weight:700;font-size:40px;line-height:1.12;
  color:var(--c-text);margin:0 0 16px}
.ai-hero-sub{font-size:18px;line-height:1.6;color:var(--c-body);max-width:52ch;margin:0 0 26px}
.ai-hero-cta{display:flex;flex-wrap:wrap;gap:12px}
@media(max-width:920px){.ai-hero-grid{grid-template-columns:1fr;gap:26px}
  .ai-hero-copy h1{font-size:30px}.ai-hero-sub{font-size:16.5px}
  .ai-hero-art{order:-1;max-width:420px;margin:0 auto}}

/* Hero SVG diagram */
.ai-diagram{width:100%;height:auto;display:block}
.ai-diagram text{font-family:var(--font-button);font-size:12px;font-weight:600;
  fill:var(--c-muted);text-anchor:middle}
.ai-wire path{fill:none;stroke:var(--c-blue);stroke-width:2;stroke-dasharray:5 5;
  opacity:.55;stroke-linecap:round;animation:ai-dash 1.1s linear infinite}
.ai-node rect{fill:var(--c-card);stroke:var(--c-line);stroke-width:1.5}
.ai-node .ai-ic{fill:none;stroke:var(--c-blue);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.ai-core rect{fill:var(--c-blue);stroke:none}
.ai-core text{fill:var(--c-blue);font-weight:700}
.ai-core-ic{fill:none;stroke:#fff;stroke-width:1.6;stroke-linecap:round}
.ai-core circle{fill:none;stroke:#fff;stroke-width:2}
.ai-node-human rect{fill:var(--c-pos-bg);stroke:var(--c-success);stroke-width:1.5}
.ai-node-human text{fill:var(--c-success-text);font-weight:700}
.ai-shield{fill:none;stroke:var(--c-success);stroke-width:2;stroke-linejoin:round}
.ai-check{fill:none;stroke:var(--c-success);stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}
@keyframes ai-dash{to{stroke-dashoffset:-20}}

/* ============ HUMAN-OVERSIGHT STATEMENT ============ */
.ai-oversight{background:var(--c-blue);color:#fff}
.ai-oversight-inner{display:flex;gap:16px;align-items:center;padding:20px 16px;flex-wrap:wrap}
.ai-oversight-badge{display:inline-flex;align-items:center;gap:9px;flex:0 0 auto;
  font-family:var(--font-button);font-weight:700;font-size:13px;letter-spacing:.6px;
  text-transform:uppercase;background:rgba(255,255,255,.16);border-radius:var(--r-pill);
  padding:9px 16px;white-space:nowrap}
.ai-oversight-badge svg{width:18px;height:18px;fill:none;stroke:#fff;stroke-width:2;
  stroke-linecap:round;stroke-linejoin:round}
.ai-oversight p{margin:0;font-size:16px;line-height:1.55;color:#fff;flex:1 1 320px}
.ai-oversight a{color:#fff;text-decoration:underline;font-weight:600}
@media(max-width:768px){.ai-oversight p{font-size:15px}}

/* ============ USE CASES ============ */
.ai-uses{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
@media(max-width:920px){.ai-uses{grid-template-columns:1fr;max-width:560px;margin:0 auto}}
.ai-usecard{background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--shadow);padding:22px 22px 24px;display:flex;flex-direction:column}
.ai-usecard-art{display:flex;justify-content:center;align-items:center;height:118px;
  background:var(--c-bg-muted);border-radius:var(--r-chip);margin-bottom:18px}
.ai-mini{width:150px;height:auto}
.ai-mini .ai-stroke{fill:none;stroke:var(--c-blue);stroke-width:3;stroke-linecap:round;stroke-linejoin:round}
.ai-mini .ai-fill-soft{fill:var(--c-active);stroke:none}
.ai-mini .ai-fill-soft2{fill:var(--c-chip);stroke:var(--c-blue);stroke-width:2.5;stroke-linejoin:round}
.ai-mini .ai-scan{fill:none;stroke:var(--c-blue-variant);stroke-width:3;stroke-linecap:round;opacity:.55}
.ai-mini .ai-accent{fill:none;stroke:var(--c-success);stroke-width:3.4;stroke-linecap:round;stroke-linejoin:round}
.ai-mini .ai-dot{fill:var(--c-orange)}
.ai-tag{align-self:flex-start;font-family:var(--font-button);font-weight:700;font-size:11.5px;
  letter-spacing:.8px;text-transform:uppercase;padding:5px 11px;border-radius:var(--r-pill);margin-bottom:12px}
.ai-tag-blue{color:var(--c-blue);background:var(--c-chip)}
.ai-usecard h3{font-family:var(--font-display);font-weight:700;font-size:19px;line-height:1.3;
  color:var(--c-text);margin:0 0 10px}
.ai-usecard>p{font-size:15px;line-height:1.6;color:var(--c-body);margin:0 0 16px}
.ai-ticks{list-style:none;margin:auto 0 0;padding:0;display:grid;gap:9px}
.ai-ticks li{position:relative;padding-left:26px;font-size:14px;line-height:1.5;color:var(--c-body)}
.ai-ticks li::before{content:"";position:absolute;left:0;top:2px;width:17px;height:17px;
  border-radius:50%;background:var(--c-pos-bg);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2315803D' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E");
  background-size:12px;background-position:center;background-repeat:no-repeat}
.ai-ticks li.ai-human{font-weight:600;color:var(--c-text)}
.ai-ticks li.ai-human::before{background:var(--c-active);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231C588E' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='7' r='4'/%3E%3Cpath d='M4 21v-1a6 6 0 0 1 12 0v1'/%3E%3C/svg%3E");
  background-size:12px}

/* ============ PIPELINE ============ */
.ai-flowband{background:var(--c-bg-muted)}
.ai-flow{max-width:1000px;margin:0 auto}
.ai-flow-track{display:none}
.ai-flow-steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:16px;position:relative}
.ai-flow-steps::before{content:"";position:absolute;top:34px;left:12%;right:12%;height:2px;
  background:repeating-linear-gradient(90deg,var(--c-line) 0 8px,transparent 8px 16px);z-index:0}
.ai-step{position:relative;z-index:1;background:var(--c-card);border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--shadow);padding:22px 16px 18px;text-align:center}
.ai-step-ico{display:inline-flex;align-items:center;justify-content:center;width:54px;height:54px;
  border-radius:50%;background:var(--c-chip);margin-bottom:12px}
.ai-step-ico svg{width:26px;height:26px;fill:none;stroke:var(--c-blue);stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.ai-step-n{position:absolute;top:14px;right:16px;font-family:var(--font-display);font-weight:700;
  font-size:14px;color:var(--c-muted);opacity:.6}
.ai-step h4{font-family:var(--font-display);font-weight:700;font-size:15.5px;color:var(--c-text);margin:0 0 6px}
.ai-step p{font-size:13.5px;line-height:1.5;color:var(--c-muted);margin:0}
.ai-step-ai{border-color:var(--c-blue)}
.ai-step-ai .ai-step-ico{background:var(--c-active)}
.ai-step-human{border-color:var(--c-success)}
.ai-step-human .ai-step-ico{background:var(--c-pos-bg)}
.ai-step-human .ai-step-ico svg{stroke:var(--c-success-text)}
.ai-step-human h4{color:var(--c-success-text)}
@media(max-width:860px){
  .ai-flow-steps{grid-template-columns:1fr 1fr;gap:14px}
  .ai-flow-steps::before{display:none}}
@media(max-width:480px){.ai-flow-steps{grid-template-columns:1fr}}

/* ============ AT A GLANCE ============ */
.ai-glance{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
@media(max-width:860px){.ai-glance{grid-template-columns:1fr 1fr}}
@media(max-width:460px){.ai-glance{grid-template-columns:1fr}}
.ai-stat{background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--shadow);padding:24px 18px;text-align:center}
.ai-stat-k{font-family:var(--font-display);font-weight:700;font-size:26px;line-height:1.15;color:var(--c-blue);margin-bottom:6px}
.ai-stat-l{font-size:14px;line-height:1.5;color:var(--c-muted)}

/* ============ PRINCIPLES ============ */
.ai-principlesband{background:var(--c-card-2)}
.ai-principles{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
@media(max-width:920px){.ai-principles{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.ai-principles{grid-template-columns:1fr}}
.ai-principle{background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);padding:22px 20px}
.ai-pico{display:inline-flex;align-items:center;justify-content:center;width:46px;height:46px;
  border-radius:12px;background:var(--c-chip);margin-bottom:14px}
.ai-pico svg{width:24px;height:24px;fill:none;stroke:var(--c-blue);stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.ai-principle h4{font-family:var(--font-display);font-weight:700;font-size:16px;color:var(--c-text);margin:0 0 8px}
.ai-principle p{font-size:14px;line-height:1.6;color:var(--c-body);margin:0}

/* ============ CLOSING CTA ============ */
.ai-cta{display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;
  background:linear-gradient(135deg,var(--c-blue) 0%,var(--c-blue-variant) 100%);
  border-radius:var(--r-card);padding:34px 34px;box-shadow:var(--shadow)}
.ai-cta-copy{flex:1 1 320px}
.ai-cta-copy h2{font-family:var(--font-display);font-weight:700;font-size:24px;color:#fff;margin:0 0 8px}
.ai-cta-copy p{font-size:16px;line-height:1.6;color:rgba(255,255,255,.9);margin:0;max-width:52ch}
.ai-cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.ai-cta .ai-btn-ghost{color:#fff;border-color:rgba(255,255,255,.5)}
.ai-cta .ai-btn-ghost:hover{background:rgba(255,255,255,.14);border-color:#fff}
@media(max-width:768px){.ai-cta{padding:26px 22px}.ai-cta-copy h2{font-size:20px}}

/* ============ SCROLL REVEAL ============ */
.ai-reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.ai-reveal.ai-in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .ai-reveal{opacity:1;transform:none;transition:none}
  .ai-wire path{animation:none}
}