/* Annotation pass: alternate light and dark sections, readable course copy. */
.challenge-page{font-size:18px}
.challenge-page #method{background:#fff;color:var(--ink)}
.challenge-page #method h2{color:var(--ink)}
.challenge-page #method .script-line{color:#62657a}
.challenge-page #method h2 em{color:var(--accent);background:none;-webkit-text-fill-color:currentColor}
.challenge-page #method p:not(.script-line){color:#55596f;font-size:1.18rem}
.challenge-page #method strong{color:var(--ink)}
.challenge-page .challenge-promise{background:radial-gradient(ellipse at top right,#39458a,#132848 58%,#0d1f3c)}
.challenge-page .challenge-promise .promise-roadmap strong{color:#fff;font-size:1.14rem}
.challenge-page .challenge-promise .promise-roadmap li>div>span{color:#d4dff1;font-size:1rem}
.challenge-page .challenge-promise .promise-roadmap li:after{background:#182e51;color:#c8d7ff}
.challenge-page .challenge-promise .roadmap-node b{border-color:#1a3055}
.challenge-page .section-head p,.challenge-page .hero-heading>p,.challenge-page .teacher p,.challenge-page .final p:not(.micro){font-size:1.18rem;line-height:1.75}
.challenge-page .day-copy>p:not(.day-subtitle){font-size:1.15rem;line-height:1.8}
.challenge-page .day-copy .day-output{font-size:.98rem!important}
.challenge-page .day-subtitle{font-size:1.8rem}
.challenge-page .curriculum-close>p,.challenge-page .case-files p,.challenge-page .faq details p,.challenge-page .faq-finish p{font-size:1.05rem;line-height:1.75}
.challenge-page .faq summary{font-size:1.12rem}
.challenge-page .itemized-stack .value-ledger>div{font-size:1.05rem;padding:17px 0}
.challenge-page .lesson-value-group h4{font-size:1.18rem}
.challenge-page .stack-summary-heading p{font-size:1.07rem}
.challenge-page .hero-heading>.hero-action>p,.challenge-page .stack-checkout .micro,.challenge-page .offer-explanation{font-size:.87rem!important}
.challenge-page .challenge-cta{font-size:1.12rem}
.challenge-page .challenge-cta small{font-size:.8rem}
.challenge-page .case-folder{background:#122057 url('/photos/aichallenge/case-smooth-gradient.webp') center/cover no-repeat;color:#fff;border:1px solid #7a8dff;box-shadow:0 18px 35px -15px #19204b80}
.challenge-page .case-folder:before{background:#4058bf}
.challenge-page .case-files article:nth-child(2) .case-folder{background-position:center}
.challenge-page .case-folder>b{color:#fff;text-shadow:0 3px 18px #0008}
.challenge-page .case-folder>span:first-child{font-size:11px;font-weight:700;text-shadow:0 1px 5px #000}
.challenge-page .case-folder i{background:#dce7ff66}
.challenge-page .case-stamp{color:#fff;background:#0d194ec9;border-color:#c4d7ff;font-size:9px}
/* Main-site footer, with challenge disclosures and consent retained. */
.challenge-page .site-footer{background:#060608;color:#c3cede;padding:clamp(52px,7vw,80px) 0 50px;border:0}
.site-footer a{color:#c3cede;text-decoration:none;transition:color .18s}
.site-footer a:hover{color:#ffb4bf}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:48px;align-items:start}
.site-footer .foot-brand{font-weight:900;font-size:1.6rem;color:#fff;letter-spacing:-.02em}
.foot-brand span{color:#ffb4bf}
.site-footer .foot-tagline{font-size:1rem;color:#9fb0c7;line-height:1.75;margin-top:14px;max-width:34ch}
.foot-cta{display:inline-flex;align-items:center;gap:7px;margin-top:22px;padding:12px 22px;font-weight:800;font-size:.95rem;border-radius:999px}
.site-footer .foot-col-h{font-size:.75rem;font-weight:800;letter-spacing:.13em;text-transform:uppercase;color:#9faec6;margin:0 0 16px}
.foot-col ul{list-style:none;display:flex;flex-direction:column;gap:10px;margin:0;padding:0}
.foot-col li a{font-size:.95rem}
.foot-rule{border:0;border-top:1px solid #ffffff26;margin:40px 0 28px}
.foot-bottom{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:14px}
.foot-copy,.foot-legal a{font-size:.85rem;color:#a4abba}
.foot-legal{display:flex;gap:22px;list-style:none;padding:0;margin:0}
.site-footer .foot-values{font-size:.7rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:#8793a6;margin-top:24px;line-height:2}
.foot-course-notes{border-top:1px solid #ffffff1c;margin-top:28px;padding-top:24px}
.site-footer .foot-course-notes p,.site-footer .measurement{color:#9faec6;font-size:.82rem;line-height:1.75}
@media(max-width:900px){.foot-grid{grid-template-columns:1fr 1fr;gap:34px}.foot-cta-col{grid-column:1/-1}}
@media(max-width:680px){.challenge-page{font-size:17px}.challenge-page .section-head p,.challenge-page .hero-heading>p,.challenge-page #method p:not(.script-line),.challenge-page .teacher p,.challenge-page .final p:not(.micro){font-size:1.08rem}.challenge-page .day-copy>p:not(.day-subtitle){font-size:1.06rem}.challenge-page .day-subtitle{font-size:1.6rem}.challenge-page .day-copy .day-output{font-size:.95rem!important}.challenge-page .itemized-stack .value-ledger>div{font-size:.96rem;align-items:flex-start}.challenge-page .lesson-value-group h4{font-size:1.05rem}.challenge-page .challenge-cta{font-size:1rem}.challenge-page .challenge-cta small{font-size:.75rem}.challenge-page .challenge-promise .promise-roadmap strong{font-size:1.02rem}.challenge-page .challenge-promise .promise-roadmap li>div>span{font-size:.95rem}.challenge-page .site-footer{padding-bottom:125px}.challenge-page .nav .brand{font-size:.78rem}.challenge-page .nav .btn{font-size:.78rem;white-space:nowrap}}
@media(max-width:540px){.foot-grid{grid-template-columns:1fr}.foot-bottom{flex-direction:column;align-items:flex-start}}
/* Smooth matching folders and a refined digital course presentation. */
.challenge-page #offer{--font:'Montserrat',sans-serif;font-family:var(--font)}
.challenge-page #offer h2 em{font-family:var(--font);font-style:normal;font-weight:600;letter-spacing:-.04em}
.challenge-page .case-folder{border-color:#6878db;box-shadow:inset 0 1px 0 #ffffff40,0 22px 44px -26px #22256166;background-size:100% 100%}
.challenge-page .case-folder:before{background:#3634ae;box-shadow:inset 0 1px 0 #ffffff35}
.challenge-page .case-folder>b{font-family:var(--font);font-style:normal;font-weight:500;text-shadow:none}
.challenge-page .case-folder>span:first-child{text-shadow:none}
.challenge-page .case-stamp{background:#18135d35;border-color:#ffffff75}
.challenge-page .premium-bundle{height:auto;padding:58px 42px 30px;background:#f8f8fc;overflow:visible;border:1px solid #e5e5f0;border-top:0;isolation:isolate}
.bundle-studio{display:grid;grid-template-columns:.75fr 1.5fr;gap:32px;align-items:center;padding:0 0 36px}
.edition-shell{padding:5px 5px 5px 12px;background:linear-gradient(90deg,#c0bed4,#f4f3fa 7%,#d9d8e8 9%,#fff 12%);border-radius:5px 10px 10px 5px;box-shadow:14px 22px 45px -24px #33305780;transform:perspective(1200px) rotateY(-10deg) rotate(-3deg)}
.edition-cover{position:relative;overflow:hidden;border-radius:2px 6px 6px 2px;background:#fff;min-height:334px;padding:23px 20px 20px;box-shadow:inset 0 1px 0 #fff,0 0 0 1px #40347712;display:flex;flex-direction:column}
.edition-author{font-size:9px;letter-spacing:.22em;font-weight:600;color:#59536f}
.edition-cover>strong{font-size:clamp(21px,2.2vw,29px);line-height:1.15;letter-spacing:-.05em;margin:29px 0 25px;font-weight:700}
.edition-cover>strong>span{display:block;font-size:10px;letter-spacing:.12em;line-height:1.7;margin-top:17px;color:#62578f;font-weight:600}
.edition-gradient{min-height:73px;flex:1;background:#4139aa url('/photos/aichallenge/case-smooth-gradient.webp') center/cover;margin:0 -20px 19px}
.edition-footer{display:flex;justify-content:space-between;align-items:center;gap:5px;font-size:7px;letter-spacing:.08em;color:#68607f}
.edition-footer b{font-size:14px;color:#3b306b}
.learning-collection{min-width:0}
.learning-device{padding:7px;border-radius:19px;background:linear-gradient(135deg,#d6d9e5,#fefeff 45%,#bdc3d6);box-shadow:0 26px 40px -28px #32385680,0 0 0 1px #c2c7da70}
.learning-screen{border-radius:12px;overflow:hidden;background:#fff;border:3px solid #202540}
.screen-masthead{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 15px;background:#171d35;color:#c7cde8;font-size:7px;font-weight:600;letter-spacing:.1em}
.screen-masthead>span+span{font-size:6px;color:#7f8aaa;letter-spacing:3px;white-space:nowrap}
.screen-feature{padding:20px 23px 27px;background:#4032b8 url('/photos/aichallenge/case-smooth-gradient.webp') center/cover;min-height:190px;color:white}
.screen-play{display:grid;place-items:center;width:36px;height:36px;border:1px solid #ffffff90;border-radius:50%;font-size:23px;line-height:1;margin-bottom:18px}
.screen-feature>span:not(.screen-play){display:block;font-size:8px;letter-spacing:.15em;font-weight:500;margin-bottom:9px;color:#f0ecff}
.screen-feature>strong{display:block;font-size:clamp(24px,2.7vw,34px);line-height:1.12;letter-spacing:-.05em;font-weight:600}
.screen-course-meta{display:flex;justify-content:space-between;gap:8px;padding:14px;font-size:7px;line-height:1.5;color:#5d617c}
.screen-course-meta b{font-size:16px;display:block;font-weight:700;color:#272348}
.resource-pair{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:18px}
.resource-shell{padding:4px;border-radius:12px;background:#e9eaf3;box-shadow:0 14px 24px -22px #48426780}
.resource-shell>div{height:100%;padding:17px 13px;background:#fff;border-radius:8px;box-shadow:inset 0 1px 0 #fff}
.resource-shell span{font-size:7px;font-weight:600;letter-spacing:.07em;color:#625491;display:block;margin-bottom:12px}
.resource-shell strong{display:block;font-size:13px;line-height:1.3;font-weight:650;letter-spacing:-.025em}
.resource-shell p{font-size:9px;line-height:1.6;margin:7px 0 0;color:#68697d}
.bundle-caption{display:flex;justify-content:space-between;gap:20px;align-items:center;border-top:1px solid #d9dbea;padding-top:25px}
.bundle-caption strong{font-weight:600;font-size:clamp(16px,1.9vw,21px);line-height:1.4;letter-spacing:-.035em}
.bundle-caption>span{font-size:10px;line-height:1.8;color:#6c6b83;text-align:right}
@media(prefers-reduced-motion:no-preference){.bundle-studio{animation:bundle-arrive .85s cubic-bezier(.32,.72,0,1) both}@keyframes bundle-arrive{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}}
@media(max-width:767px){.challenge-page .case-folder,.challenge-page .case-files article:nth-child(2) .case-folder{transform:none}.challenge-page .premium-bundle{padding:32px 20px 25px}.bundle-studio{grid-template-columns:1fr;gap:30px;padding-bottom:28px}.edition-shell{width:215px;justify-self:center;transform:none}.edition-cover{min-height:290px}.edition-cover>strong{font-size:25px}.screen-feature>strong{font-size:29px}.bundle-caption{display:block;text-align:center}.bundle-caption>span{display:block;text-align:center;margin-top:12px}.resource-pair{gap:9px}.resource-shell>div{padding:14px 10px}.resource-shell strong{font-size:12px}.screen-masthead{font-size:6px;padding:11px}.screen-course-meta{font-size:7px}.screen-feature{padding:20px}.challenge-page #offer .section-head h2{font-size:clamp(1.8rem,7vw,2.4rem)}}

/* Stronger hierarchy and contrast for the itemized offer. */
.challenge-page .itemized-stack{background:#fff;color:#10182d;border-color:#17233d}
.challenge-page .itemized-stack .stack-summary-heading h3{font-weight:800;color:#10182d}
.challenge-page .itemized-stack .stack-summary-heading p{color:#343d53;font-weight:500}
.challenge-page .itemized-stack .label{color:#4235a5}
.challenge-page .itemized-stack .ledger-column-head{color:#263047;border-bottom-color:#17233d}
.challenge-page .itemized-stack .lesson-value-group h4{background:#17233d;color:#fff;font-weight:800;padding:18px 16px;margin:28px 0 8px;border-radius:4px}
.challenge-page .itemized-stack .lesson-value-group h4>span{background:#fff;color:#27385e;font-weight:800;border-radius:2px}
.challenge-page .itemized-stack .value-ledger>div{border-bottom-color:#bdc6d7;padding:20px 0}
.challenge-page .itemized-stack .value-ledger dt{color:#17233d;font-weight:650}
.challenge-page .itemized-stack .value-ledger dd{color:#10182d;font-weight:800;font-size:1.18rem}
.challenge-page .itemized-stack .lesson-number{color:#414b63;font-size:.76rem}
.challenge-page .itemized-stack .lesson-subtotal{color:#35415b;font-weight:600;border-bottom-color:#9caac2;padding-top:16px}
.challenge-page .itemized-stack .lesson-subtotal strong{color:#17233d;font-weight:800;font-size:1.08rem}
.challenge-page .itemized-stack .stack-value-total{font-weight:800;font-size:1.18rem;color:#10182d}
.challenge-page .itemized-stack .stack-value-total s{color:#b21b31;font-weight:800}
.challenge-page .itemized-stack .value-note{color:#454e63!important;font-size:.75rem!important}
@media(max-width:680px){.challenge-page .itemized-stack .lesson-value-group h4{padding:15px 12px;gap:10px;font-size:1.02rem;align-items:center}.challenge-page .itemized-stack .value-ledger>div{padding:17px 0}.challenge-page .itemized-stack .value-ledger dd{font-size:1.04rem}.challenge-page .itemized-stack .lesson-number{font-size:.66rem}.challenge-page .itemized-stack .stack-value-total{font-size:1rem}.challenge-page .itemized-stack .value-note{font-size:.72rem!important}}

/* Enrollment dialog, authentic course previews and shared offer clock. */
.challenge-page button.btn{font-family:inherit;cursor:pointer;appearance:none;text-align:center;line-height:1.4}
.challenge-page .itemized-stack .lesson-value-group h4>span{background:#67e8f9;color:#10203b}
.edition-author{font-size:10px;font-weight:800;color:#17233d;letter-spacing:.16em}
.edition-cover>strong{font-weight:800;font-size:clamp(25px,2.5vw,33px);line-height:1.08;color:#11172b;letter-spacing:-.055em;margin:25px 0}
.edition-cover>strong>span{font-weight:800;color:#4338ca;letter-spacing:.08em;font-size:11px}
.edition-footer{font-weight:700;color:#273454}
.screen-feature.course-art{padding:0;min-height:0;background:#f5f1e8}
.course-art img{display:block;width:100%;height:auto}
.lesson-previews{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;padding:12px 12px 0;background:#f2f3fa}
.lesson-previews figure{margin:0;min-width:0}
.lesson-previews img{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;border:1px solid #c8cee3}
.lesson-previews figcaption{font-size:7px;font-weight:800;letter-spacing:.08em;color:#253454;padding:7px 0;text-align:center}
#instructor .teacher figure>img{aspect-ratio:1/1.05;object-fit:cover;object-position:50% 28%}
.challenge-page .offer-window{background:#eef0ff;border-color:#9b9cec;border-radius:8px}
.challenge-page .offer-window .offer-window-title,.challenge-page .offer-window .offer-window-end{color:#263355}
.challenge-page .offer-clock b{background:#fff;color:#4338ca;border-color:#b8bcf2;border-radius:3px}
.challenge-page .offer-clock small{color:#485475}
.challenge-page .hero-offer-window{max-width:340px;margin:24px auto 0;padding:14px 16px;background:#0c193ce6;border-color:#6c74bd;color:white}
.challenge-page .hero-offer-window .offer-window-title{font-size:.76rem;color:#d9ddff;margin:0 0 10px}
.challenge-page .hero-offer-window .offer-clock b{background:#25345b;color:#8deeff;border-color:#465785;font-size:1.4rem}
.challenge-page .hero-offer-window .offer-clock small{color:#c0cbed;font-size:.5rem}
.signup-open{overflow:hidden}
.signup-dialog{position:fixed;box-sizing:border-box;width:min(520px,calc(100vw - 28px));max-height:calc(100dvh - 28px);padding:34px;border:1px solid #bdc4dd;border-radius:8px;background:#fff;color:#16213b;box-shadow:0 25px 100px #040f2c80;font-family:'Montserrat',sans-serif;overflow:auto}
.signup-dialog::backdrop{background:#071329c9;backdrop-filter:blur(5px)}
.signup-dialog .label{font-size:10px;letter-spacing:.14em;color:#4f46e5;display:block;padding-right:20px}
.signup-dialog h2{font-size:1.9rem;letter-spacing:-.045em;line-height:1.1;margin:18px 0 12px;font-weight:800}
.signup-dialog .signup-intro{font-size:.87rem;color:#4b5874;line-height:1.6;margin:0 0 15px}
.signup-close{position:absolute;right:12px;top:10px;background:transparent;border:0;color:#253454;font-size:28px;line-height:1;cursor:pointer;padding:7px}
.signup-price{display:flex;align-items:center;gap:16px;padding:15px 0;border-top:1px solid #dbe0ef;border-bottom:1px solid #dbe0ef;margin-bottom:20px}
.signup-price strong{font-size:2rem;color:#4338ca;letter-spacing:-.045em}
.signup-price>span{font-size:.72rem;color:#465472;line-height:1.5}
.signup-dialog form>label:not(.signup-check){display:block;font-size:.78rem;font-weight:700;margin:16px 0 7px}
.signup-dialog form>label>span{font-weight:400;color:#52607b;margin-left:5px}
.signup-dialog form>input{display:block;box-sizing:border-box;width:100%;border:1px solid #aeb9d2;background:#f8f9fc;color:#14203b;border-radius:3px;padding:12px 13px;font:inherit;font-size:16px;min-height:46px}
.signup-dialog input:focus-visible{outline:2px solid #4f46e5;outline-offset:2px}
.signup-honeypot{position:absolute;left:-10000px;top:auto;width:1px;height:1px;overflow:hidden}
.signup-dialog .signup-privacy,.signup-dialog .signup-note{font-size:.68rem;line-height:1.65;color:#54617b;margin:15px 0}
.signup-dialog a{color:#4338ca;text-decoration:underline}
.signup-dialog .signup-check{display:flex;gap:9px;align-items:flex-start;font-size:.72rem;line-height:1.55;color:#354463;margin:12px 0}
.signup-check input{flex:none;margin:3px 0 0;width:15px;height:15px;accent-color:#4338ca}
.signup-dialog .signup-check>span{margin:0;color:inherit}
.signup-dialog .signup-submit{display:flex;align-items:center;justify-content:center;gap:18px;width:100%;margin-top:20px;min-height:52px;font-size:.9rem;font-weight:800;padding:14px 12px}
.signup-dialog .signup-status{padding:12px;background:#eef0ff;color:#263355;border-left:3px solid #6366f1;font-size:.77rem;line-height:1.6}
.signup-dialog button:disabled{opacity:.65;cursor:progress}
@media(max-width:680px){.signup-dialog{padding:28px 22px}.signup-dialog h2{font-size:1.6rem}.lesson-previews{gap:5px;padding:8px 8px 0}.edition-cover>strong{font-size:28px}.hero-offer-window .offer-clock{gap:6px}#instructor .teacher figure>img{aspect-ratio:4/3;object-position:50% 28%}}

/* Latest annotated corrections: coherent mockup color and mobile alignment. */
.challenge-page .stack-checkout>.challenge-cta{width:100%;margin:25px auto 20px;align-items:center;justify-content:center}
.challenge-page .stack-checkout>.challenge-cta>span{max-width:100%;text-align:center;white-space:normal}
.challenge-page .day-art.mockup-art{background:radial-gradient(ellipse at 12% 5%,#ba9bff 0%,transparent 55%),radial-gradient(ellipse at 95% 80%,#63d4ed 0%,transparent 58%),linear-gradient(145deg,#7364d8 0%,#b1a3f2 52%,#8faee8 100%);border-color:#9d91e1;box-shadow:0 25px 50px -30px #514c9b80}
.challenge-page .mockup-art figcaption{color:#172745}
.challenge-page .mockup-art figcaption small{color:#344366}
@media(max-width:680px){
  .challenge-page #curriculum .day-copy{text-align:center}
  .challenge-page #curriculum .day-copy>p{max-width:36rem;margin-left:auto;margin-right:auto}
  .challenge-page #instructor .teacher{text-align:center}
  .challenge-page #instructor .teacher figure{width:100%;max-width:600px;margin:auto}
  .challenge-page #instructor .teacher p{max-width:36rem;margin-left:auto;margin-right:auto}
  .challenge-page #instructor .instructor-stats{justify-content:center;gap:24px;flex-wrap:wrap}
  .challenge-page #instructor .instructor-stats>span{flex:0 1 140px;text-align:center}
}

/* Outcome, offer recap and a clear contact-to-payment path. */
.signup-dialog{width:min(580px,calc(100vw - 28px));padding:27px 30px;border-radius:6px}
.signup-steps{display:flex;list-style:none;margin:0 32px 19px 0;padding:0;gap:20px;color:#596580;font-size:12px;line-height:1.6}
.signup-steps li{display:flex;align-items:center;gap:7px}
.signup-steps b{display:flex;align-items:center;justify-content:center;width:22px;height:22px;border:1px solid #bac3d7;font-size:11px;background:#edf0f7}
.signup-steps [aria-current]{color:#4338ca;font-weight:750}
.signup-steps [aria-current] b{background:#4338ca;color:white;border-color:#4338ca}
.signup-dialog h2{margin:0 0 10px;font-size:clamp(26px,4vw,34px);letter-spacing:-.035em;line-height:1.1;text-wrap:balance}
.signup-dialog .signup-intro{font-size:13px;line-height:1.6;margin-bottom:17px;color:#43516b}
.signup-offer{background:#f2f3fd;border:1px solid #d6dbed;padding:14px 16px;margin-bottom:18px}
.signup-includes{list-style:none;margin:0 0 11px;padding:0}
.signup-includes li{font-size:12px;line-height:1.6;color:#263453;margin:4px 0;padding-left:20px;position:relative}
.signup-includes li::before{content:'✓';position:absolute;left:0;color:#4338ca;font-weight:800}
.signup-price{margin:0;padding:11px 0 0;border-top:1px solid #cbd2e8;border-bottom:0;justify-content:space-between;gap:12px}
.signup-price>div{display:flex;align-items:baseline;gap:7px}
.signup-price s{font-size:13px;color:#6b3445}
.signup-price strong{font-size:30px;letter-spacing:-.035em;line-height:1.2}
.signup-price>div>span{font-size:11px;color:#43516b}
.signup-price>span{font-size:11px;line-height:1.6;text-align:right;color:#43516b}
.signup-fields{display:flex;flex-direction:column;gap:13px}
.signup-field{flex:1;min-width:0}
.signup-field label{display:block;font-size:12px;font-weight:750;margin:0 0 7px}
.signup-field input{display:block;box-sizing:border-box;width:100%;border:1px solid #9faac4;background:#f8f9fc;color:#14203b;border-radius:2px;padding:10px 11px;font:inherit;font-size:16px;min-height:44px}
.signup-phone{margin:12px 0;font-size:12px;color:#43516b}
.signup-phone summary{cursor:pointer;line-height:1.7}
.signup-phone summary span{font-size:10px;margin-left:5px;color:#596580}
.signup-phone .signup-field{margin-top:10px}
.signup-dialog .signup-check{font-size:11px;margin:15px 0;line-height:1.6}
.signup-check small{font-size:10px;color:#596580}
.signup-dialog .signup-submit{margin-top:14px;min-height:50px;font-size:13px;padding:13px 10px;border-radius:0}
.signup-dialog .signup-note{font-size:10px;line-height:1.6;margin:12px 0 8px;text-align:center;color:#43516b}
.signup-dialog .signup-privacy{font-size:10px;line-height:1.6;margin:0;color:#43516b;text-align:center}
.signup-dialog .signup-status{border-left:0;border:1px solid #b9c2e0}
@media(max-width:520px){.signup-dialog{padding:25px 20px}.signup-fields{flex-direction:column;gap:13px}.signup-steps{gap:13px;font-size:11px}.signup-offer{padding:12px}.signup-dialog .signup-submit{font-size:12px}}

/* Annotated alignment: unbroken roadmap and one instructor credential row. */
.challenge-page .challenge-promise .promise-roadmap li:not(:last-child)::after{content:"";width:0;height:0;top:52px;left:calc(100% + 14px);line-height:0;background:transparent;border-top:7px solid transparent;border-bottom:7px solid transparent;border-left:10px solid #6383ed}
.challenge-page .challenge-promise .promise-roadmap li:nth-child(2)::after{border-left-color:#3abce0}
.challenge-page #instructor .teacher{align-items:start;gap:32px}
.challenge-page #instructor .teacher>figure{margin:0}
.challenge-page #instructor .instructor-copy{display:flex;flex-direction:column;justify-content:space-between;gap:16px;aspect-ratio:1/1.05;min-width:0}
.challenge-page #instructor .instructor-copy>.label{margin:0;font-size:clamp(9px,.9vw,12px)}
.challenge-page #instructor .instructor-copy h2{font-size:clamp(30px,3.5vw,50px);margin:0}
.challenge-page #instructor .instructor-copy>p{font-size:clamp(14px,1.45vw,18px);line-height:1.65;margin:0;max-width:100%}
.challenge-page #instructor .instructor-credentials{grid-column:1/-1;display:flex;justify-content:center;align-items:center;gap:clamp(24px,5vw,64px);padding:24px 0;border-block:1px solid #ffffff26}
.challenge-page #instructor .instructor-credentials .instructor-stats{margin:0;padding:0;border:0;gap:clamp(24px,4vw,48px)}
.challenge-page #instructor .instructor-credentials>.micro{font-size:16px;margin:0}
@media(max-width:680px){
 .challenge-page .challenge-promise .promise-roadmap li:not(:last-child)::after{top:calc(100% + 14px);left:39px;border:0;border-left:7px solid transparent;border-right:7px solid transparent;border-top:10px solid #6383ed}
 .challenge-page .challenge-promise .promise-roadmap li:nth-child(2)::after{border-top-color:#3abce0}
 .challenge-page #instructor .instructor-copy{aspect-ratio:auto;gap:20px}
 .challenge-page #instructor .instructor-copy>p{font-size:16px}
 .challenge-page #instructor .instructor-credentials{flex-direction:column;gap:20px}
}

/* Single-column registration with a visible, required mobile field. */
.signup-phone-field{margin-top:13px}
.signup-dialog .signup-field-help{font-size:12px;line-height:1.5;color:#43516b;margin:7px 0 0}

/* First-party form standard: readable placeholders and separate message consent. */
.signup-field input::placeholder{color:#52607b;opacity:1}
.signup-consents{margin-top:18px}
.signup-dialog .signup-consents .signup-check{font-size:12px;line-height:1.6;margin:12px 0;color:#354463}
.signup-consents strong{font-weight:700}

/* Browser review: centered signup, compact actions and a clickable phone. */
.signup-dialog #signup-title,.signup-dialog #signup-intro{text-align:center}
.demo-window{position:relative}
.demo-signup-trigger{position:absolute;inset:0;z-index:5;width:100%;height:100%;border:0;border-radius:inherit;padding:0;background:transparent;cursor:pointer}
.demo-signup-trigger:focus-visible{outline:3px solid #60c8ff;outline-offset:-4px}
.challenge-page .hero-showcase .hero-action{max-width:390px}
.challenge-page .hero-showcase .challenge-cta,.challenge-page .stack-checkout>.challenge-cta{width:100%;max-width:390px;min-width:0;padding:13px 18px;font-size:16px;line-height:1.4;gap:3px}
.challenge-page .hero-showcase .challenge-cta small,.challenge-page .stack-checkout>.challenge-cta small{font-size:12px;line-height:1.5}
.challenge-page #instructor .caption{color:#fff}
@media(max-width:680px){
 .challenge-page .hero-showcase .hero-action{max-width:290px}
 .challenge-page .hero-showcase .challenge-cta,.challenge-page .stack-checkout>.challenge-cta{max-width:290px;padding:11px 12px;font-size:14px;gap:3px}
 .challenge-page .hero-showcase .challenge-cta small,.challenge-page .stack-checkout>.challenge-cta small{font-size:11px;line-height:1.45}
 .challenge-page .hero-showcase .challenge-cta>span>span[aria-hidden],.challenge-page .stack-checkout>.challenge-cta>span>span[aria-hidden]{display:none}
}

/* Original awards photo with the instructor's numbers beside it. */
.challenge-page .credentials{padding:42px 0;background:#0e1830;color:#fff}
.challenge-page .credentials .credentials-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:38px;align-items:center;max-width:960px}
.credentials-photo{margin:0;min-width:0}
.credentials-photo img{display:block;width:100%;height:auto;aspect-ratio:1800/1199;object-fit:contain}
.credentials-copy{min-width:0}
.challenge-page .credentials-copy>.label{color:#b6b8ff;font-size:10px;letter-spacing:.16em}
.credentials-copy h2{font-size:clamp(25px,3vw,36px);line-height:1.15;margin:10px 0 22px;color:#fff}
.credentials-numbers{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.credentials-numbers>span{display:flex;flex-direction:column;gap:7px;font-size:13px;color:#d5def0}
.credentials-numbers strong{display:block;font-size:clamp(27px,3.4vw,42px);line-height:1.1;letter-spacing:-.035em;color:#fff}
.credentials-copy p{font-size:14px;line-height:1.6;margin:23px 0 0;color:#d5def0}
@media(max-width:680px){
 .challenge-page .credentials{padding:28px 0}
 .challenge-page .credentials .credentials-layout{grid-template-columns:1fr;gap:23px;max-width:420px;text-align:center}
 .credentials-copy h2{margin-bottom:20px}
 .credentials-numbers{gap:14px}
 .credentials-numbers strong{font-size:30px}
 .credentials-copy p{margin-top:18px}
}

/* C0150: landscape introduction above enrollment; illustrative phone below. */
.challenge-page .hero-heading .hero-showcase{width:100%;max-width:960px}
.challenge-page .hero-heading .hero-showcase .hero-action{max-width:390px}
.challenge-page .hero-heading .hero-showcase .hero-offer-window{max-width:500px}
.hero-video{width:100%;margin:0;overflow:hidden;border:1px solid #697598;border-radius:8px;background:#0d1f3c;box-shadow:0 22px 50px -28px #020b1cc7}
.hero-video-player{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:contain}
.challenge-page .recording-proof .conversation-demo{width:420px;max-width:100%;margin:42px auto 56px}
.recording-proof .conversation-demo .demo-window{width:260px;max-width:100%;margin:0 auto;box-sizing:border-box}
.recording-proof .demo-caption{max-width:38ch;margin:20px auto 0;text-align:center;color:#55596f;font-size:13px;line-height:1.65}
.recording-proof .demo-caption strong{display:block;margin-bottom:5px;color:#17233c;font-size:14px}
.recording-proof .demo-caption span{display:block}
@media(max-width:680px){
 .challenge-page .hero-heading .hero-showcase .hero-action{max-width:290px}
 .challenge-page .recording-proof .conversation-demo{margin:32px auto 42px}
 .hero-video{border-radius:5px}
}

/* Stage 05 and 06 illustrations end at the image, without caption strips. */
.challenge-page .day-art.scene-art{padding:0}

/* Original HighLevel Manila panel and audience, fading into the section. */
.challenge-page .challenge-promise{position:relative;isolation:isolate;overflow:hidden;background:#0d1f3c}
.challenge-page .challenge-promise::before{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;background:url("/photos/aichallenge/ghl-manila-crowd-panel.jpg") 50% 48%/cover no-repeat;opacity:.5;mask-image:linear-gradient(to bottom,#000 0%,#000 48%,#0009 78%,transparent 100%)}
.challenge-page .challenge-promise .section-head{text-shadow:0 2px 18px #0b1833}
#instructor .teacher figure>img{object-position:50% 45%}
@media(max-width:680px){.challenge-page .challenge-promise::before{background-position:34% top;background-size:auto 570px;mask-image:linear-gradient(to bottom,#000 0%,#000 22%,transparent 70%)}#instructor .teacher figure>img{object-position:50% 45%}}

/* Compact offer clock leads the hero without competing with its headline. */
.challenge-page .hero-heading>.hero-offer-window{display:flex;align-items:center;justify-content:center;gap:30px;width:min(100%,610px);max-width:610px;margin:0 auto 28px;padding:14px 24px;border:1px solid #b6caff40;border-radius:10px;background:#14243db8;box-shadow:0 8px 30px #07122620}
.challenge-page .hero-heading>.hero-offer-window .offer-window-title{flex:0 0 145px;margin:0;color:#e4eaf6;font-size:.85rem;line-height:1.55;text-align:left;font-weight:600}
.challenge-page .hero-heading>.hero-offer-window .offer-clock{flex:1;gap:18px;max-width:340px}
.challenge-page .hero-heading>.hero-offer-window .offer-clock>span{gap:3px;position:relative}
.challenge-page .hero-heading>.hero-offer-window .offer-clock>span+span:before{content:':' ;position:absolute;left:-11px;top:0;color:#7289a7;font-size:1.35rem}
.challenge-page .hero-heading>.hero-offer-window .offer-clock b{border:0;border-radius:0;background:transparent;color:#8ce9fb;font-size:1.65rem;line-height:1.2;letter-spacing:-.03em}
.challenge-page .hero-heading>.hero-offer-window .offer-clock small{font-size:.5rem;letter-spacing:.12em;color:#b8c6dc}
@media(max-width:680px){.challenge-page .hero-heading>.hero-offer-window{flex-direction:column;gap:12px;width:100%;padding:13px 18px;margin-bottom:24px}.challenge-page .hero-heading>.hero-offer-window .offer-window-title{flex:auto;font-size:.75rem;text-align:center}.challenge-page .hero-heading>.hero-offer-window .offer-clock{width:100%;max-width:300px;gap:18px}.challenge-page .hero-heading>.hero-offer-window .offer-clock b{font-size:1.5rem}.challenge-page .hero-heading>.hero-offer-window .offer-clock small{font-size:.48rem}}

/* Simplified course footer with centered values and course notes. */
.site-footer .foot-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
.site-footer .foot-values{max-width:none;text-align:center}
.site-footer .foot-course-notes{text-align:center}
.site-footer .foot-course-notes p{max-width:90ch;margin-inline:auto}
@media(max-width:900px){.site-footer .foot-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:540px){.site-footer .foot-grid{grid-template-columns:minmax(0,1fr)}}