/* =========================================================
   Khmer fonts bundled locally (assets/fonts, SIL Open Font License)
   so Khmer text renders correctly even when Google Fonts is blocked
   or the site is opened offline. To use a different Khmer font, drop
   its .ttf into assets/fonts, add an @font-face below, and put its
   name first in --font-km.
   ========================================================= */
@font-face{font-family:"Kantumruy Pro";src:url("assets/fonts/KantumruyPro.ttf") format("truetype");font-weight:100 700;font-style:normal;font-display:swap}
@font-face{font-family:"Noto Sans Khmer Local";src:url("assets/fonts/NotoSansKhmer.ttf") format("truetype");font-weight:100 900;font-style:normal;font-display:swap}
@font-face{font-family:"Battambang";src:url("assets/fonts/Battambang-Regular.ttf") format("truetype");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"Battambang";src:url("assets/fonts/Battambang-Bold.ttf") format("truetype");font-weight:700;font-style:normal;font-display:swap}
/* =========================================================
   FRONTIER RESEARCH — design tokens and reusable components
   Edit colors, spacing, and fonts here to restyle the whole site.
   ========================================================= */
:root{
  --blue:#0f62fe;--blue-dark:#0043ce;--ink:#161616;--muted:#525252;
  --line:#e0e0e0;--pale:#f4f4f4;--green:#198038;--radius:0;
  --font-en:"IBM Plex Sans","Helvetica Neue",Arial,sans-serif;
  --font-mono:"IBM Plex Mono",Consolas,monospace;
  --font-km:"Kantumruy Pro","Noto Sans Khmer Local","Noto Sans Khmer","Khmer OS Siemreap","Khmer OS","Khmer UI","Leelawadee UI",sans-serif;
  --font-km-heading:"Kantumruy Pro","Battambang","Noto Sans Khmer Local","Noto Sans Khmer","Khmer OS Muol Light","Khmer UI",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{margin:0;color:var(--ink);background:#fff;font-family:var(--font-en);line-height:1.65}
body.lang-km{font-family:var(--font-km);line-height:1.85}
body.lang-km .eyebrow,body.lang-km .button,body.lang-km .status-pill,body.lang-km .future-pill,body.lang-km .image-label,body.lang-km .future-index{letter-spacing:0}
body.lang-km h1,body.lang-km h2,body.lang-km h3{letter-spacing:0;line-height:1.45}
a{color:inherit;text-decoration:none}
button{font:inherit}
img{display:block;width:100%;height:100%;object-fit:cover}
.container{width:min(1160px,calc(100% - 48px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:50;background:#ffffffed;backdrop-filter:blur(14px);border-bottom:1px solid #e8eaed}
.nav{height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:11px;font-size:1.13rem;font-weight:700;letter-spacing:-.04em;white-space:nowrap}
.brand-mark{width:30px;height:30px;position:relative;display:inline-block;flex:none}
.brand-mark i{position:absolute;display:block;width:15px;height:15px;border-radius:5px;background:#4285f4}
.brand-mark i:nth-child(1){left:8px;top:0;opacity:.8}.brand-mark i:nth-child(2){left:0;top:10px;background:#1a73e8}.brand-mark i:nth-child(3){left:14px;top:14px;background:#8ab4f8}
.nav-links{display:flex;align-items:center;gap:25px;color:#3c4043;font-size:.88rem}
.nav-links a:hover{color:var(--blue)}
.nav-actions{display:flex;align-items:center;gap:12px}
.language-switch{display:flex;gap:3px;padding:4px;border:1px solid var(--line);border-radius:999px;background:white}
.lang-btn{border:0;background:transparent;color:var(--muted);padding:5px 10px;border-radius:999px;font-size:.8rem;font-weight:700;cursor:pointer}
.lang-btn.active{background:#e8f0fe;color:var(--blue)}
.button{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:12px 19px;border-radius:999px;border:1px solid transparent;font-size:.88rem;font-weight:600;transition:transform .2s,box-shadow .2s;cursor:pointer}
.button:hover{transform:translateY(-2px);box-shadow:0 7px 20px #1a73e820}
.button-primary{background:var(--blue);color:white}.button-primary:hover{background:var(--blue-dark)}
.button-secondary{border-color:#d5dce7;background:white;color:var(--blue)}
.menu-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:12px;padding:7px 11px}
.hero{background:linear-gradient(115deg,#f6f9ff 0%,#fff 54%,#edf4ff 100%);overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;align-items:center;gap:58px;padding-top:72px;padding-bottom:76px}
.eyebrow{display:flex;align-items:center;gap:9px;color:var(--blue);font-size:.79rem;font-weight:700;letter-spacing:.055em;text-transform:uppercase;margin:0 0 16px}
.status-dot,.caption-dot{width:8px;height:8px;border-radius:50%;background:#34a853;display:inline-block;flex:none}
h1{font-size:clamp(2.7rem,5vw,4.35rem);font-weight:600;line-height:1.08;letter-spacing:-.065em;margin:0 0 22px;max-width:650px}
.lead,.section-intro{font-family:var(--font-en);color:var(--muted);font-size:1.04rem;margin:0}
.lead{max-width:550px;margin-bottom:27px}
.hero-buttons{display:flex;flex-wrap:wrap;gap:11px}
.hero-note{display:flex;align-items:center;gap:10px;margin-top:28px;color:#687386;font-size:.85rem}
.note-icon{width:25px;height:25px;display:grid;place-items:center;border-radius:50%;background:#e8f0fe;color:var(--blue)}
.hero-visual{position:relative;min-height:470px;border-radius:28px}
.hero-visual>img{position:absolute;inset:0;border-radius:28px;box-shadow:0 20px 55px #17365d27}
.image-caption{position:absolute;left:18px;right:18px;bottom:18px;padding:15px 17px;border:1px solid #ffffff55;border-radius:16px;background:#10233bc9;color:white;backdrop-filter:blur(12px);display:flex;align-items:center;gap:12px}
.image-caption strong{display:block;font-size:.95rem}.image-caption small{display:block;color:#d8e5f7;font-size:.8rem}
.slide-credit{font-size:.62rem!important;color:#a9bbd6!important;margin-top:3px}.slide-credit:empty{display:none}
.caption-dot{background:#81c995;width:9px;height:9px;box-shadow:0 0 0 5px #34a85326}
.floating-tag{position:absolute;display:flex;align-items:center;gap:8px;background:#fff;border:1px solid #e7ebf2;border-radius:999px;padding:10px 14px;box-shadow:0 8px 24px #17203318;font-size:.82rem;font-weight:600}
.floating-tag span:first-child{color:var(--blue);font-size:1.1rem}.tag-one{top:24px;left:-20px}.tag-two{right:-17px;top:105px}
.section{padding:82px 0}
.current-section{background:#fff}
.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:30px;margin-bottom:32px}
.section-heading>div{max-width:760px}
.section-heading h2,.mission-grid h2,.contact-inner h2{font-size:clamp(2rem,3.6vw,3rem);line-height:1.14;letter-spacing:-.055em;font-weight:600;margin:0 0 14px}
.section-intro{max-width:760px}
.section-number{display:inline-grid;place-items:center;width:26px;height:26px;border-radius:50%;background:#e8f0fe;color:var(--blue);font-size:.75rem}
.status-pill,.future-pill{white-space:nowrap;display:inline-flex;align-items:center;gap:8px;border:1px solid #dcefe1;background:#f0f9f2;color:#137333;border-radius:999px;padding:7px 12px;font-size:.78rem;font-weight:600}
.future-pill{background:#f3f0ff;color:#7048b8;border-color:#e6dcff}
.current-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.project-card{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;box-shadow:0 4px 18px #17203308}
.project-image{height:235px;position:relative;background:#e8eef5}
.project-image img{transition:transform .5s}.project-card:hover .project-image img{transform:scale(1.035)}
.project-credit{position:absolute;left:12px;bottom:10px;padding:4px 8px;border-radius:8px;background:#10233bb8;color:#d8e5f7;font-size:.62rem;line-height:1.3;max-width:calc(100% - 24px)}
.image-label{position:absolute;top:15px;left:15px;padding:6px 10px;border-radius:999px;background:#ffffffeb;color:#344054;font-size:.67rem;letter-spacing:.06em;font-weight:700}
.project-content{padding:25px 26px 28px}
.project-icon{width:43px;height:43px;border-radius:14px;display:grid;place-items:center;font-size:1.35rem;margin-bottom:14px}
.blue-icon{color:var(--blue);background:#e8f0fe}.green-icon{color:var(--green);background:#e6f4ea}
.project-content h3{font-size:1.32rem;letter-spacing:-.035em;margin:0 0 10px}
.project-content>p,.feature-list{font-family:var(--font-en);color:var(--muted);font-size:.94rem}
.project-content>p{margin:0 0 17px}
.feature-list{padding:0 0 0 19px;margin:0;display:grid;gap:7px}.feature-list li::marker{color:var(--blue)}
.workflow{margin-top:28px;padding:25px 28px;border:1px solid var(--line);border-radius:var(--radius);display:grid;grid-template-columns:.8fr 2fr;gap:25px;align-items:center;background:#fbfcff}
.workflow-intro .eyebrow{margin-bottom:7px}.workflow-intro h3{font-size:1.2rem;line-height:1.35;margin:0;letter-spacing:-.025em}
.workflow-steps{display:flex;align-items:center;justify-content:space-between;gap:14px}
.workflow-step{flex:1}.step-num{display:block;color:var(--blue);font-size:.72rem;font-weight:700;margin-bottom:4px}.workflow-step strong{font-size:.94rem}.workflow-step p{font-family:var(--font-en);font-size:.82rem;color:var(--muted);margin:4px 0 0;line-height:1.45}
.step-arrow{color:#9aa7b8;font-size:1.3rem}
.future-section{background:#f7f9fc}
.future-number{background:#efe8ff;color:#7e57c2}
.future-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:17px}
.future-card{background:white;border:1px solid var(--line);border-radius:19px;overflow:hidden;transition:transform .2s,box-shadow .2s}
.future-card:hover{transform:translateY(-4px);box-shadow:0 12px 28px #17203310}
.future-art{height:142px;display:grid;place-items:center;position:relative;overflow:hidden;color:white;font-size:2.8rem}
.future-art:before,.future-art:after{content:"";position:absolute;border:1px solid #ffffff60;border-radius:50%;width:140px;height:140px}.future-art:after{width:90px;height:90px}.future-art span{z-index:1;text-shadow:0 4px 14px #0003}
.quantum-art{background:radial-gradient(circle at 50% 40%,#f6c77b,#9d5a2b 30%,#142e50 75%)}
.energy-art{background:linear-gradient(145deg,#f5d98c,#8fc9d9 55%,#3c8568)}
.robot-art{background:radial-gradient(circle at 50% 35%,#d0e0f8,#526f98 32%,#142440 76%)}
.rocket-art{background:radial-gradient(ellipse at 50% 80%,#ffad66,transparent 25%),linear-gradient(145deg,#82caff,#245c91 55%,#0b1c39)}
.future-content{padding:19px 20px 22px}.future-index{color:#7e57c2;font-size:.66rem;font-weight:700;letter-spacing:.08em}
.future-content h3{font-size:1.08rem;letter-spacing:-.025em;line-height:1.35;margin:7px 0 8px}
.future-content p{font-family:var(--font-en);font-size:.86rem;line-height:1.55;color:var(--muted);margin:0}
.future-disclaimer{display:flex;gap:9px;align-items:flex-start;color:#687386;font-size:.83rem;margin:20px 0 0}
.mission-section{background:#fff}
.mission-grid{display:grid;grid-template-columns:1fr .9fr;gap:85px;align-items:center}
.mission-grid h2{max-width:570px}.mission-grid .section-intro{max-width:570px}
.mission-values{display:grid;gap:23px}
.mission-value{display:grid;grid-template-columns:48px 1fr;gap:15px;align-items:start}
.value-icon{width:48px;height:48px;display:grid;place-items:center;border-radius:16px;background:#e8f0fe;color:var(--blue);font-size:1.35rem}
.mission-value:nth-child(2) .value-icon{background:#f3e8fd;color:#8430ce}.mission-value:nth-child(3) .value-icon{background:#e6f4ea;color:#188038}
.mission-value h3{font-size:1rem;margin:0 0 5px}.mission-value p{font-family:var(--font-en);color:var(--muted);font-size:.9rem;margin:0}
.contact-section{padding:56px 0;background:linear-gradient(115deg,#174ea6,#1a73e8 60%,#4285f4);color:white}
.contact-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
.contact-inner .eyebrow{color:#d6e5ff;margin-bottom:10px}.contact-inner h2{font-size:clamp(1.8rem,3vw,2.5rem);margin-bottom:8px}.contact-inner p:not(.eyebrow){color:#e3edff;margin:0}
.button-light{background:white;color:var(--blue);white-space:nowrap}
footer{padding:24px 0;border-top:1px solid var(--line);color:var(--muted);font-size:.82rem}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:20px}.footer-brand{color:var(--ink)}.footer-inner p{margin:0}
@media(max-width:1000px){.nav-links{gap:14px}.nav-actions{gap:7px}.contact-nav{display:none}.hero-grid{gap:32px}.hero-visual{min-height:410px}.future-grid{grid-template-columns:repeat(2,1fr)}.workflow{grid-template-columns:1fr}.mission-grid{gap:45px}}
@media(max-width:760px){.container{width:calc(100% - 34px)}.nav{height:68px}.menu-toggle{display:block}.nav-links{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;padding:18px 24px 22px;border-bottom:1px solid var(--line);flex-direction:column;align-items:flex-start;gap:15px}.nav-links.open{display:flex}.nav-actions{margin-left:auto}.hero-grid{grid-template-columns:1fr;padding-top:52px;padding-bottom:54px;gap:36px}.hero-visual{min-height:390px}.section{padding:60px 0}.section-heading{align-items:flex-start;flex-direction:column;gap:16px}.current-grid{grid-template-columns:1fr}.project-image{height:250px}.workflow-steps{gap:9px}.mission-grid{grid-template-columns:1fr;gap:34px}.contact-inner{align-items:flex-start;flex-direction:column}.footer-inner{flex-wrap:wrap}}
@media(max-width:480px){.container{width:calc(100% - 28px)}h1{font-size:2.55rem}.hero-visual{min-height:310px}.tag-one{left:-7px}.tag-two{right:-7px}.project-image{height:205px}.project-content{padding:21px}.future-grid{grid-template-columns:1fr}.future-art{height:160px}.workflow{padding:21px 18px}.workflow-steps{align-items:flex-start;flex-direction:column}.step-arrow{transform:rotate(90deg);margin-left:8px}.workflow-step{width:100%}.footer-inner{align-items:flex-start;flex-direction:column}}


/* Illustrated applications carousel (auto-sliding, 3 / 2 / 1 cards per view) */
.apps-section{background:var(--pale);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.apps-number{background:#fde7e3;color:#c5221f}
.apps-pill{border-color:#f6d5cf;background:#fdf0ee;color:#b3261e}
.apps-pill .caption-dot{background:#e8710a;box-shadow:0 0 0 5px #e8710a22;width:9px;height:9px;border-radius:50%}
.app-carousel{position:relative;--per-view:3;--gap:20px;padding:0 0 34px;outline:none;touch-action:pan-y}
.app-carousel:focus-visible{box-shadow:0 0 0 4px #1a73e855;border-radius:var(--radius)}
.app-viewport{overflow:hidden;margin:0 -6px;padding:6px}
.app-track{display:flex;gap:var(--gap);transition:transform .65s cubic-bezier(.22,.61,.36,1);will-change:transform}
.app-card{flex:0 0 calc((100% - (var(--per-view) - 1) * var(--gap)) / var(--per-view));background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s;user-select:none}
.app-card:hover{transform:translateY(-4px);box-shadow:0 18px 40px #17365d1c}
.app-image{position:relative;aspect-ratio:8/5;overflow:hidden;background:#fff4d6}
.app-image img{width:100%;height:100%;object-fit:cover;display:block;-webkit-user-drag:none}
.card-tech .image-label{background:#ede7f6eb;color:#4a2f8a}
.app-content{padding:18px 20px 22px;display:flex;flex-direction:column;gap:8px;flex:1}
.app-content h3{font-size:1.1rem;letter-spacing:-.025em;line-height:1.35;margin:0}
.app-content p{font-family:var(--font-en);font-size:.9rem;line-height:1.6;color:var(--muted);margin:0}
.app-prev{left:-14px}.app-next{right:-14px}
.app-carousel .slide-arrow{background:#10233bcc;border-color:#ffffff40}
.app-carousel .app-dots{position:absolute;left:50%;bottom:0;transform:translateX(-50%)}
.app-dots .slide-dot{background:#9aa7b8}.app-dots .slide-dot.active{background:var(--blue)}
body.lang-km .app-content p{font-family:var(--font-km);font-size:.98rem;line-height:1.9}
body.lang-km .app-content h3{line-height:1.6}
.future-art{height:160px;display:block;position:relative;overflow:hidden;background:#fff4d6}
.future-art:before,.future-art:after{content:none}
.future-art img{width:100%;height:100%;object-fit:cover;display:block}
@media(max-width:1000px){.app-carousel{--per-view:2}}
@media(max-width:600px){.app-carousel{--per-view:1}.app-prev{left:6px}.app-next{right:6px}}
@media(prefers-reduced-motion:reduce){.app-track{transition:none}}

/* Hero image carousel - slides move horizontally on a track; JS sets translateX */
.hero-visual{touch-action:pan-y;outline:none}
.hero-visual:focus-visible{box-shadow:0 0 0 4px #1a73e855;border-radius:28px}
.hero-slides{position:absolute;inset:0;overflow:hidden;border-radius:28px;box-shadow:0 20px 55px #17365d27;background:#10233b}
.hero-track{display:flex;height:100%;width:100%;transition:transform .7s cubic-bezier(.22,.61,.36,1);will-change:transform}
.hero-slide{flex:0 0 100%;width:100%;height:100%;position:relative;overflow:hidden;user-select:none}
.hero-slide img{width:100%;height:100%;object-fit:cover;border-radius:0;transform:scale(1.04);transition:transform 6s ease-out;-webkit-user-drag:none}
.hero-slide.active img{transform:scale(1)}
.slide-dots{max-width:70%;flex-wrap:wrap;justify-content:center;padding:6px 10px;border-radius:999px;background:#10233b66;backdrop-filter:blur(6px)}
.slide-arrow{position:absolute;top:50%;z-index:3;transform:translateY(-50%);width:42px;height:42px;border:1px solid #ffffff8a;border-radius:50%;background:#10233b99;color:#fff;font-size:30px;line-height:1;cursor:pointer;backdrop-filter:blur(8px);transition:background .2s,transform .2s}
.slide-arrow:hover{background:#10233be8}.slide-arrow:active{transform:translateY(-50%) scale(.94)}.slide-prev{left:14px}.slide-next{right:14px}
.slide-dots{position:absolute;z-index:4;left:50%;bottom:96px;transform:translateX(-50%);display:flex;gap:8px}
.slide-dot{width:8px;height:8px;padding:0;border:0;border-radius:99px;background:#ffffffa6;cursor:pointer;transition:width .2s,background .2s}
.slide-dot.active{width:23px;background:#fff}
.slide-progress{position:absolute;z-index:4;left:0;right:0;top:0;height:4px;background:#ffffff33;overflow:hidden}
.slide-progress span{display:block;height:100%;width:0;background:#fff}
@media(prefers-reduced-motion:reduce){.hero-track{transition:none}.hero-slide img{transition:none;transform:none}.slide-progress{display:none}}

/* =========================================================
   Khmer typography - applied when <body class="lang-km">
   Khmer glyphs sit taller and read smaller than Latin at the
   same size, so we nudge size and line-height, remove tight
   tracking, and make sure every text block uses the Khmer font
   (some blocks above hard-code Roboto, which has no Khmer glyphs).
   ========================================================= */
body.lang-km,
body.lang-km .lead,body.lang-km .section-intro,body.lang-km .project-content>p,body.lang-km .feature-list,
body.lang-km .workflow-step p,body.lang-km .future-content p,body.lang-km .mission-value p,
body.lang-km button,body.lang-km input,body.lang-km .brand{font-family:var(--font-km)}
.lang-btn[data-lang="km"]{font-family:var(--font-km)}
body.lang-km{font-size:1.04rem;line-height:1.9;overflow-wrap:anywhere;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
body.lang-km h1,body.lang-km h2,body.lang-km h3,body.lang-km .brand,body.lang-km strong{letter-spacing:0}
body.lang-km h1,body.lang-km h2,body.lang-km h3,body.lang-km .brand{font-family:var(--font-km-heading)}
body.lang-km h1{font-size:clamp(2.1rem,4vw,3.4rem);line-height:1.5;font-weight:700;max-width:680px}
body.lang-km .section-heading h2,body.lang-km .mission-grid h2,body.lang-km .contact-inner h2{font-size:clamp(1.7rem,3vw,2.5rem);line-height:1.5;font-weight:700}
body.lang-km h3{line-height:1.6}
body.lang-km .eyebrow,body.lang-km .image-label,body.lang-km .future-index,body.lang-km .roadmap-label,body.lang-km .step-num{text-transform:none;letter-spacing:0;font-size:.86rem}
body.lang-km .button,body.lang-km .lang-btn,body.lang-km .status-pill,body.lang-km .future-pill,body.lang-km .nav-links{font-size:.95rem;line-height:1.6}
body.lang-km .button{padding:11px 19px}
body.lang-km .lead,body.lang-km .section-intro{font-size:1.08rem;line-height:1.95}
body.lang-km .project-content>p,body.lang-km .feature-list,body.lang-km .future-content p,body.lang-km .mission-value p,body.lang-km .workflow-step p{font-size:.98rem;line-height:1.9}
body.lang-km .image-caption strong{font-size:1rem;line-height:1.6}body.lang-km .image-caption small{font-size:.86rem;line-height:1.6}
body.lang-km .floating-tag,body.lang-km .hero-note,body.lang-km footer{font-size:.9rem;line-height:1.6}
@media(max-width:480px){body.lang-km h1{font-size:1.9rem}}

/* =========================================================
   IBM Research-inspired theme (research.ibm.com)
   Same layout; Carbon-style tokens: IBM Plex Sans, #161616 ink,
   #0f62fe blue, #e0e0e0 hairlines, square corners, dark header
   and footer, light-weight large headlines, tile hover bars.
   ========================================================= */
body{-webkit-font-smoothing:antialiased;line-height:1.6}
h1,h2,h3{font-weight:400}
h1{font-size:clamp(2.6rem,5vw,4.4rem);line-height:1.1;letter-spacing:-.02em;max-width:720px}
.section-heading h2,.mission-grid h2,.contact-inner h2{font-size:clamp(2rem,3.6vw,3rem);font-weight:300;letter-spacing:-.02em;line-height:1.15}
.lead,.section-intro{font-size:1.1rem;line-height:1.6;color:#525252;font-weight:300}
.eyebrow{text-transform:none;letter-spacing:0;font-size:.85rem;font-weight:400;color:#0f62fe}
.eyebrow .status-dot{border-radius:0}

/* header: dark Carbon UI shell */
.site-header{background:#161616;border-bottom:1px solid #393939;backdrop-filter:none}
.nav{height:64px}
.brand{color:#f4f4f4;font-weight:500;letter-spacing:0;font-size:1rem}
.brand-mark i{border-radius:0;background:#0f62fe}
.nav-links{color:#c6c6c6;font-size:.88rem}
.nav-links a{padding:6px 0;border-bottom:2px solid transparent;transition:color .15s,border-color .15s}
.nav-links a:hover{color:#fff;border-bottom-color:#0f62fe}
.language-switch{border-color:#525252;background:#262626;border-radius:0;padding:0;gap:0}
.lang-btn{border-radius:0;color:#c6c6c6;padding:8px 12px;font-weight:500}
.lang-btn.active{background:#0f62fe;color:#fff}
.menu-toggle{border-color:#525252;background:#262626;color:#fff;border-radius:0}
@media(max-width:760px){.nav-links{background:#161616;border-bottom-color:#393939}.nav-links a{color:#f4f4f4}}

/* buttons: Carbon primary / tertiary, square, arrow on the right */
.button{border-radius:0;padding:14px 60px 14px 16px;justify-content:flex-start;position:relative;font-weight:400;font-size:.95rem;letter-spacing:0;min-width:200px;transition:background .15s,color .15s,border-color .15s}
.button span[aria-hidden]{position:absolute;right:16px}
.button-primary{background:#0f62fe;border-color:#0f62fe;color:#fff}
.button-primary:hover{background:#0353e9;transform:none;box-shadow:none}
.button-secondary{background:transparent;border:1px solid #0f62fe;color:#0f62fe}
.button-secondary:hover{background:#0f62fe;color:#fff;transform:none;box-shadow:none}
.button-secondary:after{content:"→";position:absolute;right:16px}
.button-light{background:#fff;border-color:#fff;color:#161616}
.button-light:hover{background:#e8e8e8;transform:none;box-shadow:none}
.hero-note .note-icon,.section-number,.project-icon,.value-icon,.app-icon,.now-icon{border-radius:0}
.section-number{background:#edf5ff;color:#0f62fe;font-family:var(--font-mono)}
.status-pill,.future-pill,.apps-pill,.image-label{border-radius:0;font-weight:400}
.status-pill{border-color:#a7f0ba;background:#defbe6;color:#0e6027}
.future-pill{border-color:#d4bbff;background:#f6f2ff;color:#6929c4}
.apps-pill{border-color:#ffd7d9;background:#fff1f1;color:#a2191f}
.image-label{background:#161616ee;color:#fff;letter-spacing:.04em}
.project-credit,.slide-credit{border-radius:0}

/* hero */
.hero{background:#f4f4f4;border-bottom:1px solid #e0e0e0}
.hero-visual,.hero-slides,.hero-slide img,.hero-visual>img,.image-caption,.floating-tag,.slide-progress,.slide-dots{border-radius:0}
.hero-slides{box-shadow:none;border:1px solid #e0e0e0}
.image-caption{background:#161616f0;border:0;border-left:4px solid #0f62fe}
.floating-tag{border-radius:0;border-color:#e0e0e0;box-shadow:none;font-weight:400}
.slide-arrow{border-radius:0;border:0;background:#161616cc}
.slide-arrow:hover{background:#0f62fe}
.slide-dot{border-radius:0;height:4px;width:16px}
.slide-dot.active{width:32px;background:#0f62fe}
.slide-dots{background:none;backdrop-filter:none;padding:0;gap:6px}
.slide-progress span{background:#0f62fe}
.hero-note{color:#525252}

/* sections and tiles */
.current-section{background:#fff}
.future-section{background:#f4f4f4;border-top:1px solid #e0e0e0;border-bottom:1px solid #e0e0e0}
.apps-section{background:#fff}
.mission-section{background:#fff}
.workflow,.project-card,.future-card,.app-card,.now-item,.drone-app-card{border-radius:0;box-shadow:none;border:1px solid #e0e0e0;position:relative}
.workflow{background:#f4f4f4;border:0}
.project-card,.future-card,.app-card{transition:border-color .2s,box-shadow .2s}
.project-card:after,.future-card:after,.app-card:after{content:"";position:absolute;left:0;right:0;bottom:0;height:4px;background:#0f62fe;transform:scaleX(0);transform-origin:left;transition:transform .35s cubic-bezier(.2,0,.38,.9)}
.project-card:hover,.future-card:hover,.app-card:hover{transform:none;border-color:#8d8d8d;box-shadow:0 2px 6px #0000001a}
.project-card:hover:after,.future-card:hover:after,.app-card:hover:after{transform:scaleX(1)}
.project-content h3,.future-content h3,.app-content h3,.mission-value h3,.workflow-intro h3{font-weight:500;letter-spacing:0}
.project-image,.future-art,.app-image{border-radius:0;border-bottom:1px solid #e0e0e0}
.future-index,.step-num,.roadmap-label{font-family:var(--font-mono);letter-spacing:0;color:#0f62fe}
.feature-list li::marker{color:#0f62fe}
.step-arrow{color:#0f62fe}
.value-icon{background:#edf5ff;color:#0f62fe}
.app-viewport{padding:6px;margin:0 -6px}
.app-carousel .slide-arrow{background:#161616}
.app-dots .slide-dot{background:#c6c6c6}.app-dots .slide-dot.active{background:#0f62fe}
.contact-section{background:#161616;color:#f4f4f4;border-top:4px solid #0f62fe}
.contact-inner .eyebrow{color:#78a9ff}.contact-inner p:not(.eyebrow){color:#c6c6c6}
footer{background:#161616;color:#8d8d8d;border-top:1px solid #393939;padding:32px 0}
.footer-brand{color:#f4f4f4}

/* Khmer headings keep a readable weight on the light-weight theme */
body.lang-km h1,body.lang-km h2{font-weight:600}
body.lang-km .button{font-weight:500}

/* =========================================================
   Figure animation
   1. Slow, continuous zoom-pan on every card figure (Ken Burns)
   2. Stronger zoom + slight lift on hover
   3. Fade-up reveal when a card scrolls into view (JS adds .is-visible)
   ========================================================= */
@keyframes kenburns{0%{transform:scale(1) translate(0,0)}50%{transform:scale(1.08) translate(-1.5%,1%)}100%{transform:scale(1.03) translate(1%,-1%)}}
.project-image img,.future-art img,.app-image img{animation:kenburns 22s ease-in-out infinite alternate;transition:transform .6s ease,filter .6s ease;will-change:transform}
.project-card:hover .project-image img,.future-card:hover .future-art img,.app-card:hover .app-image img{animation-play-state:paused;transform:scale(1.12);filter:saturate(1.1)}
/* Illustrations animate internally (SMIL inside the SVG), so they get no zoom-pan and only a gentle hover zoom that keeps the ornament frame visible */
.future-art img,.app-image img{animation:none;transform:none}
.future-card:hover .future-art img,.app-card:hover .app-image img{transform:scale(1.04);filter:none}
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s cubic-bezier(.2,0,.38,.9),transform .7s cubic-bezier(.2,0,.38,.9)}
.reveal.is-visible{opacity:1;transform:none}
.reveal:nth-child(2){transition-delay:.08s}.reveal:nth-child(3){transition-delay:.16s}.reveal:nth-child(4){transition-delay:.24s}
@media(prefers-reduced-motion:reduce){.project-image img,.future-art img,.app-image img{animation:none}.reveal{opacity:1;transform:none;transition:none}}