/* SAMTTSS neutral portfolio theme, extending the Hustle Bee layout.
   Direction references: Vora Bold (Tooplate) and Lens (HTML5 UP).
   All page routes and application logic are preserved. */
:root{color-scheme:light;--honey:#48574b;--honey-light:#bdc8bc;--honey-glow:#e6e9e3;--amber:#48574b;--cream:#f5f5f1;--cream-alt:#eceee8;--dark:#232722;--dark-soft:#3e443c;--brown:#62685f;--white:#fff;--font-display:Arial,'Noto Sans TC',system-ui,sans-serif;--font-body:Arial,'Noto Sans TC',system-ui,sans-serif;--radius:4px;--radius-sm:3px;--radius-full:4px;--shadow-soft:none;--shadow-medium:none;--shadow-lift:none;--bounce:cubic-bezier(.2,.6,.2,1);--bg:#f5f5f1;--text:#232722;--muted:#62685f;--accent:#48574b;--line:#d8dcd3}
body{min-width:320px;font-size:15px}.container{max-width:1180px;padding:0 30px}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid #48574b;outline-offset:5px}.skip-link{position:fixed;top:8px;left:8px;transform:translateY(-160%);z-index:2000;background:var(--dark);color:white;padding:10px 16px}.skip-link:focus{transform:none}
.nav{background:rgba(245,245,241,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}.nav.scrolled{border-bottom-color:var(--line);box-shadow:none}.nav-inner{width:100%;max-width:1180px;height:80px;padding:0 30px}.nav-logo{gap:16px;font-size:17px;font-weight:600;letter-spacing:1.4px}.brand-mark{font-size:25px;font-weight:700;border-right:1px solid #a9afa4;padding-right:16px;line-height:1}.nav-links{gap:3px}.nav-links a{font-size:13px;font-weight:400;padding:10px 14px;border-radius:0;letter-spacing:.4px}.nav-links a:hover{transform:none;background:transparent;color:var(--dark);text-decoration:underline;text-underline-offset:7px}.nav-links a[aria-current=page]{color:var(--dark);background:transparent;text-decoration:underline;text-underline-offset:7px}.nav-toggle{border-radius:2px}
.hero{min-height:0;background:var(--cream);border-bottom:1px solid var(--line)}.hero-bg,.hero-floating-bee,.hero-visual-sticker,.scroll-hint{display:none}.hero-content{padding:145px 30px 75px;gap:65px;grid-template-columns:1.05fr 1fr}.hero-name{font-size:clamp(40px,4.6vw,60px);line-height:1.36;letter-spacing:-1.8px;font-weight:500;margin-bottom:23px;animation:none}.hero-name .highlight{color:var(--dark);font-weight:500}.hero-name .highlight::after{display:none}.hero-badge{padding:0;border:0;background:transparent;border-radius:0;font:11px/1.7 ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:1px;color:var(--brown);margin-bottom:25px;animation:none}.hero-badge .status-dot{display:none}.hero-tagline{font-size:15px;line-height:2;color:var(--brown);max-width:420px;margin-bottom:30px;animation:none}.hero-actions{gap:12px;animation:none}.btn{font:500 14px var(--font-body);padding:13px 23px;border-radius:3px;transition:background .2s,color .2s;box-shadow:none;justify-content:center}.btn-primary{background:var(--dark);color:#fff;border:1px solid var(--dark);box-shadow:none}.btn-primary:hover{background:#444d40;color:#fff;transform:none;box-shadow:none}.btn-secondary{background:transparent;color:var(--dark);border:1px solid #afb6a9}.btn-secondary:hover{background:#e6e9e3;border-color:#737d6b;transform:none;box-shadow:none}
.hero-visual{height:435px;gap:12px;animation:none}.hero-img-card,.hero-img-card:nth-child(1),.hero-img-card:nth-child(2),.hero-img-card:nth-child(3){border-radius:2px;border:1px solid #d0d4ca;box-shadow:none;transition:opacity .2s}.hero-img-card:hover{transform:none;box-shadow:none;opacity:.87}.hero-img-card:hover img{transform:none}.hero-visual a{display:block}.hero-visual img{width:100%;height:100%;object-fit:cover}
.home-paths{padding:78px 0;background:var(--cream)}.section-top{display:flex;justify-content:space-between;align-items:end;gap:35px;margin-bottom:35px}.section-label{font:11px/1.7 ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:1.6px;color:var(--brown);margin-bottom:13px}.section-label .dot{display:none}.section-title{font-size:clamp(26px,3vw,36px);line-height:1.5;font-weight:500;letter-spacing:-.6px;margin:0}.section-desc{font-size:14px;line-height:1.9;max-width:420px;color:var(--brown)}
.entry-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.entry-grid.portfolio-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.entry-card{display:flex;flex-direction:column;position:relative;min-height:270px;padding:30px;border:1px solid var(--line);border-radius:3px;background:#fafaf7;transition:border-color .2s}.entry-card:hover{transform:none;box-shadow:none;border-color:#697361}.entry-card h2{font-size:23px;font-weight:500;line-height:1.5;margin:20px 0 12px}.entry-card p{font-size:14px;line-height:1.95;color:var(--brown);margin-bottom:30px}.entry-icon{font:500 26px var(--font-body);color:var(--dark);display:block;background:transparent;width:auto;height:auto;border-radius:0}.entry-index{position:absolute;right:30px;top:32px;color:var(--brown);font:11px ui-monospace,monospace;letter-spacing:1px}.entry-action{display:flex;align-items:center;justify-content:space-between;gap:14px;color:var(--dark);font-size:13px;font-weight:500;margin-top:auto;border-top:1px solid var(--line);padding-top:17px}
.portfolio-entry{display:flex;flex-direction:column;overflow:hidden;border:0;border-radius:0;background:transparent}.portfolio-entry img{width:100%;height:310px;object-fit:cover;min-height:0;border:1px solid var(--line);transition:opacity .2s}.portfolio-entry:hover img{opacity:.85}.portfolio-entry .entry-copy{padding:24px 0 0;display:flex;flex-direction:column}.mini-label{font:11px/1.6 ui-monospace,monospace;letter-spacing:1.2px;color:var(--brown)}.entry-copy h2{font-size:26px;font-weight:500;margin:12px 0 5px;line-height:1.5}.entry-copy p{font-size:14px;line-height:1.95;color:var(--brown);margin:8px 0 24px}.entry-copy .entry-action{padding-top:16px}.about-lite{padding:70px 0;background:var(--cream-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.about-columns{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:start}.about-columns p{font-size:14px;line-height:2.1;color:var(--brown);margin-bottom:20px}.interest-pills{display:flex;flex-wrap:wrap;gap:8px 20px;border-top:1px solid #c9d0c1;padding-top:20px}.interest-pills span{background:transparent;border:0;border-radius:0;padding:0;font-size:12px;color:var(--dark)}
.page-banner{padding:145px 0 50px;background:var(--cream)}.page-banner h1{font-size:clamp(35px,5vw,52px);font-weight:500;line-height:1.4;letter-spacing:-1px;margin-bottom:20px}.page-banner p{font-size:15px;color:var(--brown);line-height:2;max-width:660px}.page-content{padding-bottom:90px}.empty-showcase{display:grid;grid-template-columns:1fr 1fr;overflow:hidden;border:1px solid var(--line);border-radius:3px;background:#fafaf7}.empty-art{min-height:360px;background:var(--cream-alt);display:flex}.empty-art img{width:100%;max-height:470px;object-fit:cover}.empty-copy{display:flex;flex-direction:column;justify-content:center;padding:48px}.empty-copy h2{font-size:28px;font-weight:500;line-height:1.6;margin:16px 0}.empty-copy p{font-size:14px;color:var(--brown);line-height:2;margin:0 0 28px}.empty-copy .btn{align-self:flex-start}.state-badge{font-size:11px;color:var(--brown);border:1px solid #c5ccbd;background:transparent;border-radius:2px;padding:4px 10px;align-self:flex-start}.detail-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;padding-top:32px;margin-top:6px}.detail-strip h3{font-size:15px;font-weight:500;margin-bottom:10px}.detail-strip p{font-size:13px;color:var(--brown);line-height:1.95}.game-note{font-size:12px!important;margin-top:18px!important}
.footer{background:#242822;border-top:1px solid var(--line);padding:30px 0}.footer-inner{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:20px;text-align:left}.footer-brand{font:500 18px var(--font-body);letter-spacing:1.5px;color:#f5f5f1}.footer-brand span{color:#f5f5f1}.footer-text{font-size:11px;line-height:1.8;color:#bac2b3}.footer-text a{color:#d0d7c9}
.legacy-tool{padding-top:85px;color:var(--dark);background:var(--cream)}.legacy-tool .wrap{padding-top:0}.legacy-tool main{padding-top:35px}.legacy-tool .nav,.legacy-tool .nav *{box-sizing:border-box}.legacy-tool .nav a{text-decoration:none}.legacy-tool .nav a[aria-current=page]{text-decoration:underline}.legacy-tool .nav-links{margin:0;padding-left:0}.legacy-tool .nav-links a{font-family:var(--font-body)}.legacy-tool .calculator,.legacy-tool .converter{background:#fafaf7;border:1px solid var(--line);border-radius:4px;box-shadow:none}.legacy-tool h1{font-weight:500;font-size:clamp(30px,5vw,45px);letter-spacing:-.8px}.legacy-tool .eyebrow{color:var(--brown);font:11px ui-monospace,monospace;letter-spacing:1.3px}.legacy-tool .screen,.legacy-tool .answer{color:var(--dark)}.legacy-tool .input-row,.legacy-tool input,.legacy-tool select,.legacy-tool textarea{background:#fff;color:var(--dark);border-color:#c7cebf;border-radius:3px}.legacy-tool .input-row input{background:transparent}.legacy-tool #result,.legacy-tool #converted{color:var(--dark);font-weight:500}.legacy-tool button{background:#f0f2eb;border-color:#c7cebf;color:var(--dark);border-radius:3px;font-weight:500;transition:background .15s}.legacy-tool button:hover{background:#e1e6d9}.legacy-tool button:active{transform:none}.legacy-tool .operator{background:#e3e8dc;color:var(--dark)}.legacy-tool .equals,.legacy-tool #copy,.legacy-tool #refresh{background:var(--dark);color:#fff;border-color:var(--dark)}.legacy-tool .equals:hover,.legacy-tool #copy:hover,.legacy-tool #refresh:hover{background:#46543f}.legacy-tool .nav-toggle{background:transparent;border:0;border-radius:2px}.legacy-tool .nav-toggle:hover{background:#e6e9e3}.legacy-tool .help,.legacy-tool .tag,.legacy-tool .answer{border-color:var(--line)}.legacy-tool .tag{border-radius:2px;background:transparent}.legacy-tool .button{background:var(--dark);color:#fff;border-radius:3px}.legacy-tool #message,.legacy-tool .input-row span{color:#48574b}.legacy-tool footer:not(.footer){border-color:var(--line)}
.reveal,.reveal-scale{opacity:1;transform:none}.hero-img-card,.btn,.nav-links a,.hero-badge,.hero-name,.hero-tagline,.hero-actions,.hero-visual,.section-label .dot{animation:none}
@media(max-width:1000px){.hero-content{gap:35px}.hero-visual{height:400px}.entry-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.about-columns{gap:45px}.empty-copy{padding:32px}}
@media(max-width:900px){.hero-content{grid-template-columns:1fr}.hero-visual{height:390px;max-width:620px;width:100%;margin-top:20px}.hero-name{font-size:clamp(38px,7vw,60px)}}
@media(max-width:768px){.container{padding:0 22px}.nav-inner{height:70px;padding:0 22px}.nav-logo{font-size:15px}.nav-links{top:70px;height:calc(100svh - 70px);background:var(--cream);margin:0;transition:transform .2s}.nav-links:not(.open){visibility:hidden;pointer-events:none}.nav-links.open{visibility:visible;pointer-events:auto}.hero-content{padding:115px 22px 55px;gap:20px}.hero-name{font-size:clamp(36px,7.5vw,52px);letter-spacing:-1.2px}.hero-tagline{font-size:14px}.hero-visual{height:330px}.home-paths,.about-lite{padding:52px 0}.section-top{display:block;margin-bottom:28px}.section-top .section-desc{margin-top:18px}.entry-grid,.entry-grid.portfolio-grid{grid-template-columns:1fr}.portfolio-entry img{height:310px}.about-columns{display:block}.about-columns>div+div{margin-top:25px}.page-banner{padding:115px 0 32px}.page-banner h1{font-size:36px}.empty-showcase{grid-template-columns:1fr}.empty-art{min-height:0;height:270px}.empty-copy{padding:28px}.detail-strip{grid-template-columns:1fr;gap:24px}.footer-inner{flex-direction:column;align-items:flex-start;gap:12px}.legacy-tool .wrap{padding-left:20px;padding-right:20px}.legacy-tool .nav-links{padding:40px 24px}.entry-card{padding:26px;min-height:250px}}
@media(max-width:420px){.hero-visual{height:285px}.hero-name{font-size:35px}.hero-actions .btn{padding:12px 18px}.portfolio-entry img{height:260px}.hero-badge{font-size:10px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}

/* Contact page */
.contact-details{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:60px;padding-top:28px;padding-bottom:55px;min-height:330px}
.contact-primary,.contact-base{min-width:0;border-top:1px solid var(--line);padding-top:25px}
.contact-kicker{display:block;font:11px/1.7 ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:1.5px;color:var(--brown);margin-bottom:25px}
.contact-email{display:flex;align-items:baseline;justify-content:space-between;gap:18px;font-size:clamp(22px,3.1vw,38px);font-weight:400;letter-spacing:-.8px;overflow-wrap:anywhere;line-height:1.5;padding-bottom:18px}
.contact-email:hover{text-decoration:underline;text-underline-offset:8px}.contact-arrow{font-size:27px;flex-shrink:0}
.contact-hint{font-size:12px;line-height:1.9;color:var(--brown);margin-top:8px}
.contact-base h2{font-size:24px;font-weight:400;letter-spacing:.6px;line-height:1.8;margin-bottom:8px}
.contact-base p{font-size:12px;letter-spacing:1px;color:var(--brown)}
@media(min-width:769px) and (max-width:1000px){.nav-links a{padding-left:10px;padding-right:10px}.nav-logo{gap:10px;font-size:15px}}
@media(max-width:768px){.contact-details{grid-template-columns:1fr;gap:40px;min-height:0;padding-top:15px;padding-bottom:25px}.contact-email{font-size:clamp(20px,5.5vw,32px);letter-spacing:-.4px}.contact-kicker{margin-bottom:18px}.contact-base h2{font-size:23px}}


/* Sam Tan personal identity */
.nav-logo{gap:0;letter-spacing:0;line-height:1;flex-shrink:0}
.nav-logo .sam-tan-logo{display:block;width:178px;height:60px;object-fit:contain;object-position:left center}
@media(max-width:768px){.nav-logo .sam-tan-logo{width:148px;height:50px}}

/* AI lab: tools and games live under one navigation entry. */
.lab-portal{display:grid;grid-template-columns:1fr 1.4fr;border:1px solid var(--line);background:#fafaf7;transition:border-color .2s}
.lab-portal:hover{border-color:#697361}
.lab-portal-title{min-height:260px;padding:42px;display:flex;flex-direction:column;justify-content:space-between;background:#e6e9e3;color:var(--dark);font:400 clamp(30px,4.8vw,60px)/1.2 var(--font-display);letter-spacing:-1.8px}
.lab-portal-title span{font:11px/1.8 ui-monospace,monospace;letter-spacing:1.8px;color:var(--brown)}
.lab-portal-copy{display:flex;flex-direction:column;justify-content:center;padding:40px}
.lab-portal-copy h3{font-size:25px;font-weight:500;line-height:1.6;margin-bottom:14px}
.lab-portal-copy p{font-size:14px;line-height:2;color:var(--brown);margin-bottom:28px}
.lab-section{padding:0 0 65px}.lab-section-heading{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:25px;padding-top:25px;border-top:1px solid var(--line)}
.lab-section-heading h2{font-size:26px;font-weight:500;line-height:1.6;margin-top:8px}
.lab-category-link{font-size:12px;color:var(--brown);text-underline-offset:5px}.lab-category-link:hover{text-decoration:underline}
.lab-section .entry-card h3{font-size:23px;font-weight:500;line-height:1.5;margin:20px 0 12px}
.lab-games{padding-bottom:95px}
.lab-breadcrumb{display:flex;gap:13px;align-items:center;padding-top:108px;padding-bottom:0;font-size:12px;line-height:1.8;color:var(--brown)}
.lab-breadcrumb a:hover{text-decoration:underline;text-underline-offset:4px}
.lab-breadcrumb+.page-banner{padding-top:28px}
.legacy-tool .lab-breadcrumb{padding:0 0 25px}.legacy-tool .lab-breadcrumb+*{margin-top:0}
@media(max-width:768px){.lab-portal{grid-template-columns:1fr}.lab-portal-title{min-height:170px;padding:28px;font-size:40px}.lab-portal-copy{padding:28px}.lab-portal-copy h3{font-size:23px}.lab-section-heading{align-items:start;gap:14px}.lab-section-heading h2{font-size:24px}.lab-category-link{padding-top:5px}.lab-section{padding-bottom:45px}.lab-games{padding-bottom:65px}.lab-breadcrumb{padding-top:95px}.lab-breadcrumb+.page-banner{padding-top:24px}.legacy-tool .lab-breadcrumb{padding-top:0}}

/* Project work takes the lead slot; preserve the full project illustration. */
.hero-project-card{background:#2d322b}.hero-project-card img{object-fit:contain}

/* About Sam */
.about-more{display:inline-block;margin-top:24px;font-size:12px;color:var(--dark)}
.about-more:hover,.about-links a:hover,.about-contact a:hover{text-decoration:underline;text-underline-offset:5px}
.about-intro{padding:0 0 70px}
.about-intro-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.5fr);gap:70px;align-items:start}
.about-identity{background:#e6e9e3;border:1px solid var(--line);padding:32px;min-width:0}
.about-name{font-size:clamp(62px,7vw,92px);letter-spacing:-5px;line-height:1.04;font-weight:500;margin:35px 0 25px}
.about-name>span{color:#65755c}
.about-role{font-size:13px;line-height:1.9;margin-bottom:30px}
.about-facts{margin:0;border-top:1px solid #c8d0c0}
.about-facts>div{padding-top:18px}
.about-facts dt{font:10px/1.8 ui-monospace,monospace;letter-spacing:.6px;color:var(--brown)}
.about-facts dd{font-size:12px;line-height:1.9;margin:6px 0 0}
.about-story h2,.about-section-head h2,.about-offhours h2{font-size:clamp(25px,3vw,34px);line-height:1.6;font-weight:500;letter-spacing:-.5px;margin:12px 0 24px}
.about-story p,.about-offhours p{font-size:14px;line-height:2.15;color:var(--brown);margin-bottom:22px}
.about-story .btn{margin-top:6px}
.about-background{background:var(--cream-alt);padding:65px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.about-section-head{margin-bottom:32px}
.about-background-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:35px}
.about-background-grid article{border-top:1px solid #c6cebf;padding-top:22px}
.about-background-grid h3{font-size:20px;line-height:1.6;font-weight:500;margin:14px 0}
.about-background-grid p{font-size:13px;line-height:2.05;color:var(--brown)}
.about-practice{padding:65px 0}
.about-work-list{margin:0;border-top:1px solid var(--line)}
.about-work-list>div{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,2.3fr);gap:30px;padding:25px 0;border-bottom:1px solid var(--line)}
.about-work-list dt{font-size:18px;line-height:1.8;font-weight:500}
.about-work-list dd{margin:0;font-size:13px;line-height:2.1;color:var(--brown)}
.about-offhours{padding:55px 0 65px;border-top:1px solid var(--line)}
.about-offhours-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px}
.about-links{display:flex;flex-wrap:wrap;gap:24px;font-size:12px;margin-top:25px}
.about-contact{background:var(--cream-alt);border-top:1px solid var(--line);padding:45px 0 55px}
.about-contact h2{font-size:25px;font-weight:500;line-height:1.7;margin:16px 0}
.about-contact p{font-size:13px;line-height:2;color:var(--brown);margin-bottom:22px}
.about-contact a{font-size:clamp(18px,3vw,25px);overflow-wrap:anywhere}
@media(max-width:1000px){.about-intro-grid{gap:40px}.about-offhours-grid{gap:40px}}
@media(max-width:768px){.about-intro{padding-bottom:45px}.about-intro-grid{grid-template-columns:1fr;gap:30px}.about-identity{padding:26px}.about-name{font-size:74px;margin:25px 0}.about-story h2,.about-section-head h2,.about-offhours h2{font-size:26px}.about-background,.about-practice{padding:45px 0}.about-background-grid{grid-template-columns:1fr;gap:28px}.about-work-list>div{grid-template-columns:1fr;gap:12px}.about-offhours{padding:40px 0 45px}.about-offhours-grid{grid-template-columns:1fr;gap:10px}.about-contact{padding:40px 0 45px}.about-contact h2{font-size:23px}}