:root{--paper:#f3f4f0;--white:#fff;--ink:#11151a;--muted:#616760;--line:#dde2d9;--green:#1ac38a;--green-dark:#08704f;--green-pale:#eaf8f0;--error:#af2929;--error-pale:#fff0ed;--radius:6px;font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}
*{box-sizing:border-box}body{margin:0;min-height:100dvh}button,input{font:inherit}button,a,input,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default}a{color:inherit;text-underline-offset:3px}a:hover{text-decoration-thickness:2px}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #007b61;outline-offset:4px}[hidden]{display:none!important}fieldset{border:0;padding:0;margin:0;min-width:0}p,h1,h2{margin:0}button{border:0}.page-shell{width:min(calc(100% - 40px - env(safe-area-inset-left) - env(safe-area-inset-right)),560px);margin:0 auto;padding:calc(38px + env(safe-area-inset-top)) 0 calc(26px + env(safe-area-inset-bottom))}.site-header{padding:20px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius)}.cyber-logo{display:block;width:280px;max-width:100%;height:auto}.title-block{padding:34px 0 30px}.eyebrow{font-size:16px;line-height:1.5;font-weight:700;letter-spacing:1.55px;text-transform:uppercase;color:var(--muted)}h1{margin-top:15px;font-size:66px;line-height:.94;letter-spacing:-3.7px;text-transform:uppercase;font-weight:800}h1 span{color:var(--green-dark)}.intro{margin-top:20px;line-height:1.55;font-size:17px;color:#464d46}.card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius)}.welcome-card{padding:25px 27px 19px}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:16px}.small-note{color:var(--muted);font-size:16px}.steps{list-style:none;padding:0;margin:8px 0 24px}.steps li{display:flex;align-items:flex-start;gap:19px;padding:22px 0;border-bottom:1px solid #edf0e9}.steps li:last-child{border-bottom:0;padding-bottom:4px}.step-number{display:inline-flex;flex-shrink:0;align-items:center;justify-content:center;width:34px;height:34px;border:1px solid var(--line);border-radius:4px;font-size:16px;font-weight:700;font-variant-numeric:tabular-nums}.steps h2{font-size:17px;line-height:1.25;letter-spacing:-.3px;padding-top:1px}.steps p{margin-top:7px;font-size:16px;line-height:1.55;color:var(--muted);max-width:340px}.button{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:52px;padding:15px 19px;border-radius:4px;line-height:1.35;font-size:16px;font-weight:700}.button-primary{background:var(--green);color:#082c21;width:100%}.button-primary:hover:not(:disabled){background:#16b57e}.button-primary:disabled{background:#bcdccd;color:#3c6555}.start-button{min-height:56px;font-size:16px}.start-button>span:last-child{font-size:26px;line-height:.8;font-weight:400}.button-dark{color:white;background:var(--ink);justify-content:center}.button-dark:hover:not(:disabled){background:#303b34}.button-dark:disabled{background:#dfe5df;color:#667067}.reward-note{margin-top:13px;text-align:center;font-size:16px;line-height:1.55;color:var(--muted)}.legal-note{margin:19px 4px 0;color:var(--muted);font-size:16px;line-height:1.7}.site-footer{border-top:1px solid var(--line);margin-top:36px;padding-top:22px}.partner-row{display:flex;align-items:center;justify-content:space-between;gap:20px}.partner-row .eyebrow{font-size:16px;letter-spacing:1.2px}.abiss-logo{display:block;width:142px;height:auto;margin-top:10px;mix-blend-mode:multiply}.partner-row>p{text-align:right;color:var(--muted);font-size:16px;line-height:1.6}.partner-row strong{color:var(--ink);font-weight:400}.footer-links{display:flex;flex-wrap:wrap;column-gap:20px;row-gap:12px;margin-top:24px;font-size:16px;line-height:1.5;color:var(--muted)}.footer-links a{min-height:48px;display:inline-flex;align-items:center}.loading-card{padding:26px;border:1px solid var(--line);display:flex;align-items:center;gap:12px;font-size:16px;border-radius:var(--radius);color:var(--muted)}.loading-dot{width:7px;height:7px;border-radius:50%;background:var(--green-dark)}.notice{padding:17px 18px;background:#ecefe8;border:1px solid #d8dfd2;border-radius:4px;margin-bottom:18px;font-size:16px;line-height:1.6}.notice-error{background:var(--error-pale);border-color:#ecc3b9;color:#932a23}.notice-success{background:var(--green-pale);border-color:#badbc7;color:var(--green-dark)}.text-button{padding:10px 0;min-height:48px;line-height:1.4;font-size:16px;font-weight:700;background:none;color:inherit;text-decoration:underline;text-underline-offset:4px}.notice .text-button{padding-bottom:0;min-height:38px}.puzzle-meta{display:flex;justify-content:space-between;gap:12px;margin:0 1px 13px;font-size:16px;letter-spacing:.3px;color:var(--muted)}.puzzle-meta>span:first-child{font-weight:700;color:var(--ink)}.puzzle-card{padding:24px 26px;margin-bottom:16px}.puzzle-card h2{margin-top:17px;font-size:24px;line-height:1.18;letter-spacing:-.7px}.question-text{margin-top:15px;line-height:1.55;font-size:16px;white-space:pre-wrap}.state-badge{color:var(--green-dark);background:var(--green-pale);border:1px solid #c5e3ce;padding:6px 9px;border-radius:3px;font-size:16px;font-weight:700;line-height:1.3}.puzzle-card form{margin-top:21px}label{display:block;font-size:16px;line-height:1.5;font-weight:700;margin-bottom:8px}.answer-row{display:flex;gap:9px;align-items:stretch}.answer-row input{flex:1;min-width:0;width:100px}input:not([type=checkbox]){min-height:52px;border:1px solid #cbd3c8;border-radius:4px;background:#fff;padding:13px 14px;color:var(--ink);font-size:16px;line-height:1.4;box-shadow:none}input::placeholder{color:#82877f;opacity:1}input.is-correct{background:var(--green-pale);border-color:#9dcfb5;color:var(--green-dark)}input[aria-invalid=true]{border-color:var(--error);background:#fff9f7}input:disabled{color:#767e73;background:#f1f3ee}.check-button{padding-left:15px;padding-right:15px;font-size:16px;min-width:105px}.field-feedback{font-size:16px;line-height:1.6;margin-top:10px}.field-feedback:empty{display:none}.field-feedback.is-error{color:var(--error)}.field-feedback.is-success{color:var(--green-dark);font-weight:700}.field-feedback.is-neutral{color:var(--muted)}.hint{padding:16px 17px;background:#f0f5e9;border-left:3px solid #9bb776;margin-top:19px;border-radius:0 3px 3px 0}.hint-label{font-size:16px;font-weight:700;line-height:1.5;text-transform:uppercase;letter-spacing:1.05px;margin-bottom:7px;color:#486537}.hint>p:last-child{font-size:16px;line-height:1.65;white-space:pre-wrap;overflow-wrap:anywhere}.body-muted{font-size:16px;line-height:1.6;color:var(--muted);margin-top:12px}.cipher-panel{background:#f3f4f0;border:1px solid #e7eae2;border-radius:4px;margin-top:19px;padding:17px 16px 19px}.cipher-caption{display:block;color:var(--muted);font-size:16px;line-height:1.5;text-transform:uppercase;letter-spacing:1.05px;font-weight:700}.ciphertext{margin-top:11px;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:24px;line-height:1.5;font-weight:650;letter-spacing:1px;overflow-wrap:anywhere;white-space:pre-wrap}.ciphertext.is-numbers{font-size:22px;letter-spacing:0}.session-note{font-size:16px;line-height:1.7;color:var(--muted);margin:18px 4px 0}.victory-card{padding:29px 27px;text-align:center;border-top:4px solid var(--green)}.success-mark{display:flex;align-items:center;justify-content:center;margin:1px auto 19px;width:62px;height:62px;border:1px solid #b4dec5;border-radius:50%;color:var(--green-dark);background:var(--green-pale);font-size:32px;line-height:1;font-weight:400}.victory-card h2{font-size:35px;letter-spacing:-1.2px;line-height:1.07;margin-top:12px}.victory-instruction{margin-top:19px;font-size:16px;line-height:1.65;color:var(--muted)}.claim-panel{background:var(--paper);padding:19px 16px 9px;margin-top:24px;border:1px solid #e2e7db;border-radius:4px}.claim-code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:30px;line-height:1.3;font-weight:700;letter-spacing:3px;margin-top:8px;overflow-wrap:anywhere}.copy-feedback{font-size:16px;line-height:1.55;margin:0 0 9px;color:var(--muted)}.copy-feedback:empty{display:none}.victory-fine-print{font-size:16px;line-height:1.55;color:var(--muted);margin:17px 10px 0}.redeemed-message{font-size:16px;line-height:1.6;color:var(--green-dark);background:var(--green-pale);padding:12px;margin-top:20px;border-radius:4px}.contact-card{margin-top:18px}.contact-card summary{display:flex;align-items:center;justify-content:space-between;gap:20px;list-style:none;cursor:pointer;padding:22px 24px;min-height:86px}.contact-card summary::-webkit-details-marker{display:none}.contact-card summary strong{display:block;font-size:16px;font-weight:700;letter-spacing:-.25px}.summary-note{display:block;margin-top:7px;font-size:16px;color:var(--muted);line-height:1.5}.summary-symbol{font-size:24px;font-weight:400;color:var(--green-dark)}.contact-card[open] .summary-symbol{font-size:0}.contact-card[open] .summary-symbol::after{content:'−';font-size:24px}.contact-content{padding:0 24px 24px}.contact-intro{margin-top:0;margin-bottom:22px;padding-top:19px;border-top:1px solid var(--line)}.form-field{margin-bottom:17px}.form-field input{width:100%}.consent-row{display:flex;align-items:flex-start;gap:11px;font-size:16px;font-weight:400;line-height:1.65;cursor:pointer;margin-top:23px;margin-bottom:0;padding:3px 0}.consent-row input{flex:none;width:20px;height:20px;margin:0;accent-color:var(--green-dark);cursor:pointer}.consent-row span{flex:1;min-width:0}.form-requirements{font-size:16px;line-height:1.5;color:var(--muted);margin:18px 0 13px}.contact-content .notice{margin-bottom:0}.contact-content .notice:not([hidden])+#contact-form{margin-top:15px}.honeypot{position:absolute;left:-10000px;top:auto;width:1px;height:1px;overflow:hidden}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:absolute;left:16px;top:-100px;padding:14px 18px;background:var(--ink);color:white;z-index:5}.skip-link:focus{top:12px}.is-puzzle .title-block{padding-bottom:26px}.is-puzzle .intro,.is-victory .intro{display:none}.is-puzzle h1,.is-victory h1{font-size:48px;letter-spacing:-2.8px}.is-victory .title-block{padding-bottom:28px}.is-victory h1 br{display:none}.is-victory h1 span{display:block}.is-ended .title-block{padding-bottom:26px}
@media(min-width:720px){.page-shell{padding-top:calc(52px + env(safe-area-inset-top))}.title-block{padding-top:41px}.welcome-card{padding:27px 31px 22px}.steps{margin-top:12px}.steps li{padding-top:23px;padding-bottom:23px}.legal-note{margin-top:20px}.site-footer{margin-top:40px}.puzzle-card{padding:28px 30px}}
@media(max-width:380px){.page-shell{width:calc(100% - 28px - env(safe-area-inset-left) - env(safe-area-inset-right));padding-top:calc(26px + env(safe-area-inset-top))}.cyber-logo{width:248px}.title-block{padding:27px 0 25px}h1{font-size:52px;letter-spacing:-3px}.intro{font-size:16px}.welcome-card{padding:21px 19px 17px}.steps li{gap:13px;padding:19px 0}.steps h2{font-size:16px}.steps p{font-size:16px}.puzzle-card{padding:21px 18px}.puzzle-card h2{font-size:22px}.answer-row{flex-direction:column}.answer-row input{width:100%}.check-button{width:100%;min-height:48px}.is-puzzle h1,.is-victory h1{font-size:43px;letter-spacing:-2.5px}.victory-card{padding:25px 20px}.victory-card h2{font-size:31px}.contact-card summary{padding:20px}.contact-content{padding:0 20px 22px}.claim-code{font-size:26px}.footer-links{font-size:16px;column-gap:14px}}

/* Small metadata remains distinct; participant instructions and controls stay at least 16px. */
.eyebrow,.small-note,.step-number,.puzzle-meta,.cipher-caption,.partner-row .eyebrow,.partner-row>p{font-size:14px}
.hint-label{font-size:16px;text-transform:none;letter-spacing:0}
.cipher-method{font-size:16px;line-height:1.5;margin-top:14px;color:var(--muted)}
.cipher-method strong{color:var(--ink);font-weight:700}
.footer-links{row-gap:0;column-gap:20px}
.summary-symbol{flex:none}
@media(max-width:460px){.answer-row{flex-direction:column}.answer-row input{width:100%}.check-button{width:100%;min-height:52px}}

/* Keep the primary action in view on compact phones. */
.title-block h1{font-size:clamp(2.3rem,10.8vw,4.125rem);letter-spacing:-.055em}
.is-puzzle .title-block h1,.is-victory .title-block h1{font-size:clamp(2.1rem,10vw,3rem);letter-spacing:-.055em}
.welcome-card{padding:20px}
.how-card{margin-top:22px}
.how-card summary{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px;list-style:none;cursor:pointer;padding:19px 23px;font-size:16px;font-weight:700}
.how-card summary::-webkit-details-marker{display:none}
.how-symbol{flex:none;font-size:24px;font-weight:400;color:var(--green-dark)}
.how-card[open] .how-symbol{font-size:0}
.how-card[open] .how-symbol::after{content:'−';font-size:24px}
.how-card .steps{margin:0 23px 23px;border-top:1px solid var(--line)}
@media(max-width:460px){.title-block{padding-top:25px;padding-bottom:24px}.intro{margin-top:17px}.welcome-card{padding:17px}.reward-note{line-height:1.5}.legal-note{line-height:1.6}.how-card summary{padding:17px 19px}.how-card .steps{margin-left:19px;margin-right:19px}}