:root {
    --navy-950: #071a31; --navy-900: #0b2442; --navy-800: #123b63;
    --blue-500: #167fbd; --cyan-400: #44c2d3; --ice-100: #e9f4f7;
    --surface: #f6f8fa; --white: #fff; --ink: #10243a; --muted: #465d70;
    --line: #dce5ea; --radius: 16px; --shadow: 0 20px 55px rgba(7,26,49,.08);
    --font-thai: "Prompt", "Noto Sans Thai", "Leelawadee UI", Tahoma, system-ui, sans-serif;
    --font-latin: "Montserrat", Arial, system-ui, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 96px; }
body { margin: 0; overflow-x: hidden; background: var(--surface); color: var(--ink); font-family: var(--font-thai); font-size: 16px; line-height: 1.7; }
a { color: inherit; } h1, h2, h3, p { margin-top: 0; } h1, h2, h3 { line-height: 1.25; letter-spacing: -.025em; }
h1 { max-width: 14ch; margin-bottom: 24px; font-size: clamp(2.45rem, 6vw, 5rem); }
h2 { margin-bottom: 20px; font-size: clamp(1.9rem, 4vw, 3.2rem); } h3 { margin-bottom: 10px; font-size: 1.25rem; } p { margin-bottom: 16px; }
.container { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.section { padding: clamp(72px, 9vw, 120px) 0; } .section-soft { background: #edf3f6; }
.section-intro { max-width: 62ch; color: var(--muted); font-size: 1.08rem; }
.skip-link { position: fixed; z-index: 100; top: -80px; left: 16px; border-radius: 6px; padding: 10px 16px; background: var(--white); color: var(--navy-950); }
.skip-link:focus { top: 12px; }
.site-header { position: sticky; z-index: 40; top: 0; border-bottom: 1px solid rgba(255,255,255,.12); background: var(--navy-950); color: var(--white); }
.header-inner { width: min(1320px, calc(100% - 48px)); min-height: 88px; margin-inline: auto; display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.brand { display: flex; align-items: center; flex: 0 0 auto; gap: 14px; color: var(--white); text-decoration: none; }
.brand-logo-slot { width: 48px; height: 48px; display: grid; flex: 0 0 48px; place-items: center; }
.brand-logo-slot > img { width: 100%; height: 100%; display: block; object-fit: contain; }
.brand-text { display: flex; flex-direction: column; align-items: flex-start; line-height: 1.1; }
.brand-text strong { font-family: var(--font-latin); font-size: 1.25rem; letter-spacing: .06em; }
.brand-text span { margin-top: 7px; color: #b9d8f2; font-family: var(--font-latin); font-size: .68rem; letter-spacing: .16em; white-space: nowrap; }
.main-nav { display: flex; align-items: center; justify-content: flex-end; gap: 24px; }
.main-nav a { min-height: 44px; display: inline-flex; align-items: center; border-bottom: 2px solid transparent; color: #dbe8f0; font-size: .9rem; text-decoration: none; }
.main-nav a:hover, .main-nav a:focus-visible { border-bottom-color: var(--cyan-400); color: var(--white); }
.mobile-menu { display: none; position: relative; }
.mobile-menu summary { min-width: 74px; min-height: 44px; display: flex; align-items: center; justify-content: center; border: 1px solid rgba(255,255,255,.28); border-radius: 7px; color: var(--white); cursor: pointer; font-weight: 750; list-style: none; }
.mobile-menu summary::-webkit-details-marker { display: none; }
.mobile-menu summary::after { margin-left: 7px; color: var(--cyan-400); content: "+"; }
.mobile-menu[open] summary::after { content: "−"; }
.mobile-menu nav { width: min(320px, calc(100vw - 32px)); display: grid; position: absolute; z-index: 50; top: calc(100% + 10px); right: 0; border: 1px solid rgba(255,255,255,.16); border-radius: 10px; padding: 8px; background: var(--navy-900); box-shadow: 0 20px 45px rgba(0,0,0,.28); }
.mobile-menu nav a { min-height: 46px; display: flex; align-items: center; border-radius: 6px; padding: 8px 12px; color: #dbe8f0; text-decoration: none; }
.mobile-menu nav a:hover, .mobile-menu nav a:focus-visible { background: rgba(68,194,211,.12); color: var(--white); }
.hero { position: relative; overflow: hidden; background: var(--navy-950); color: var(--white); }
.hero::before { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(7,26,49,.97) 0%, rgba(7,26,49,.90) 43%, rgba(7,26,49,.66) 100%), url("assets/visuals/modern-home-environment-concept.webp") center / cover no-repeat; content: ""; }
.hero::after { position: absolute; right: -180px; bottom: -280px; width: 540px; height: 540px; border: 1px solid rgba(68,194,211,.22); border-radius: 50%; box-shadow: 0 0 0 70px rgba(68,194,211,.025), 0 0 0 140px rgba(68,194,211,.018); content: ""; }
.hero-grid { min-height: 650px; display: grid; position: relative; z-index: 1; grid-template-columns: minmax(0,1fr) minmax(360px,1fr); align-items: center; gap: clamp(42px,6vw,80px); padding-block: 72px; }
.eyebrow, .panel-label, .card-category, .journal-meta, .contact-grid article > span { color: var(--blue-500); font-family: var(--font-latin); font-size: .78rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.hero .eyebrow, .process-section .eyebrow { color: var(--cyan-400); }
.hero-description { max-width: 62ch; margin-bottom: 0; color: #c7d7e3; font-size: clamp(1.05rem,2vw,1.25rem); }
.hero h1 span { display: block; }
.hero-building { width: fit-content; position: relative; }
.hero-building::after { width: 36%; height: 5px; display: block; margin-top: 7px; border-radius: 99px; background: var(--cyan-400); content: ""; }
.hero-highlight { color: #7de7f1; }
.button-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.button { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; border: 1px solid transparent; border-radius: 7px; padding: 10px 18px; font-weight: 750; text-decoration: none; }
.button-primary { background: var(--cyan-400); color: var(--navy-950); } .button-secondary { border-color: rgba(255,255,255,.38); color: var(--white); } .button:hover { transform: translateY(-1px); }
.hero-visual-stack { min-width: 0; display: grid; gap: 16px; }
.concept-visual { overflow: hidden; margin: 0; border: 1px solid rgba(255,255,255,.16); border-radius: var(--radius); background: var(--navy-900); box-shadow: var(--shadow); }
.concept-visual img { width: 100%; height: auto; aspect-ratio: 2 / 1; display: block; object-fit: cover; object-position: center; }
.concept-visual figcaption { display: grid; gap: 5px; border-top: 1px solid rgba(255,255,255,.12); padding: 14px 16px 16px; color: #c7d7e3; font-size: .84rem; line-height: 1.55; }
.concept-visual figcaption strong { color: var(--cyan-400); font-family: var(--font-latin); font-size: .76rem; letter-spacing: .1em; }
.meaning-preview { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); overflow: hidden; border: 1px solid rgba(255,255,255,.16); border-radius: var(--radius); background: rgba(7,26,49,.82); box-shadow: var(--shadow); }
.meaning-preview p { min-width: 0; margin: 0; padding: 16px; }
.meaning-preview p + p { border-left: 1px solid rgba(255,255,255,.14); }
.meaning-preview span, .meaning-preview strong { display: block; }
.meaning-preview span { margin-bottom: 7px; color: var(--cyan-400); font-family: var(--font-latin); font-size: .68rem; font-weight: 800; letter-spacing: .08em; }
.meaning-preview strong { overflow-wrap: anywhere; font-size: .88rem; line-height: 1.5; }
.development-panel { border: 1px solid rgba(255,255,255,.16); border-radius: var(--radius); padding: 30px; background: rgba(255,255,255,.065); box-shadow: var(--shadow); }
.development-panel h2 { margin: 8px 0 12px; font-family: var(--font-latin); font-size: 2rem; }
.development-panel > p:not(.panel-label, .status-badge, .panel-note) { color: #c7d7e3; }
.status-badge { width: fit-content; max-width: 100%; border: 1px solid #c8dce5; border-radius: 999px; padding: 6px 11px; background: var(--ice-100); color: var(--navy-800); font-family: var(--font-latin); font-size: .78rem; font-weight: 800; line-height: 1.45; letter-spacing: .04em; }
.development-panel .status-badge { border-color: rgba(68,194,211,.38); background: rgba(68,194,211,.12); color: #9ce5ee; }
.panel-note { margin: 24px 0 0; border-top: 1px solid rgba(255,255,255,.14); padding-top: 18px; color: #a9becd; font-size: .9rem; }
.section-heading { display: grid; grid-template-columns: minmax(0,1.15fr) minmax(280px,.85fr); align-items: end; gap: clamp(32px,7vw,84px); margin-bottom: 42px; }
.section-heading > p { margin-bottom: 5px; color: var(--muted); }
.capability-grid { display: grid; grid-template-columns: repeat(5,minmax(0,1fr)); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.capability-grid article { min-height: 250px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 26px 22px; background: var(--white); }
.capability-grid article > span, .principle-grid article > span { color: var(--blue-500); font-family: var(--font-latin); font-size: .78rem; font-weight: 800; }
.capability-grid h3 { margin-top: 48px; }
.capability-grid p, .product-card > p:not(.card-category, .status-badge, .card-note), .principle-grid p, .contact-grid p { color: var(--muted); }
.product-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 18px; }
.product-card { min-width: 0; min-height: 390px; display: flex; flex-direction: column; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; background: var(--white); box-shadow: 0 14px 40px rgba(7,26,49,.045); }
.product-card-featured { border-top: 4px solid var(--blue-500); } .product-card h3 { margin: 22px 0 12px; font-size: 1.75rem; } .product-card .status-badge { margin-bottom: 22px; }
.product-visual { margin: 18px -30px 0; background: #dceaf0; }
.product-visual img { width: 100%; height: auto; aspect-ratio: 4 / 3; display: block; object-fit: cover; }
.product-visual figcaption { display: grid; gap: 4px; padding: 12px 30px 14px; background: #e8f4f7; color: #29485e; font-size: .78rem; font-weight: 650; line-height: 1.55; }
.product-visual figcaption strong { color: #0f6b98; font-family: var(--font-latin); font-size: .7rem; letter-spacing: .08em; }
.card-note { margin-top: auto; margin-bottom: 0; border-top: 1px solid var(--line); padding-top: 18px; color: var(--muted); font-size: .9rem; font-weight: 700; }
.process-section { background: var(--navy-900); color: var(--white); } .section-heading-dark > p { color: #b9ccd9; }
.process-list { display: grid; grid-template-columns: repeat(5,minmax(0,1fr)); margin: 0; padding: 0; list-style: none; }
.process-list li { min-width: 0; min-height: 190px; display: flex; position: relative; flex-direction: column; border-top: 1px solid rgba(255,255,255,.18); padding: 24px 22px; }
.process-list li:not(:last-child)::after { position: absolute; top: -7px; right: -6px; color: var(--cyan-400); content: "→"; }
.process-list span { color: var(--cyan-400); font-family: var(--font-latin); font-size: .78rem; } .process-list strong { min-width: 0; margin-top: 46px; overflow-wrap: anywhere; font-family: var(--font-latin); font-size: 1.12rem; } .process-list small { min-width: 0; margin-top: 8px; overflow-wrap: anywhere; color: #b9ccd9; font-size: .9rem; }
.journal-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(48px,9vw,110px); }
.journal-list { border-top: 1px solid var(--line); }
.journal-group + .journal-group { margin-top: 42px; }
.journal-group-title { margin: 0; border-bottom: 1px solid var(--line); padding: 18px 0 14px; color: var(--blue-500); font-family: var(--font-latin); font-size: .78rem; letter-spacing: .12em; }
.journal-list article { border-bottom: 1px solid var(--line); padding: 28px 0; }
.journal-group-active article { margin-top: 14px; border: 1px solid var(--line); border-left: 4px solid var(--cyan-400); border-radius: 0 12px 12px 0; padding: 24px; background: var(--white); }
.journal-meta { display: flex; justify-content: space-between; gap: 20px; } .journal-meta > * { min-width: 0; overflow-wrap: anywhere; } .journal-meta time { color: var(--muted); font-family: var(--font-thai); font-weight: 500; letter-spacing: 0; text-transform: none; }
.journal-list h3 { margin: 22px 0 10px; font-size: 1.35rem; } .journal-list p { margin-bottom: 0; color: var(--muted); }
.journal-list .journal-group-title { margin: 0; }
.journal-boundary { margin-top: 16px; border-top: 1px solid var(--line); padding-top: 14px; font-size: .9rem; font-weight: 700; }
.principles-section { background: var(--white); } .principle-grid { display: grid; grid-template-columns: repeat(5,minmax(0,1fr)); gap: 14px; }
.principle-grid article { border-top: 3px solid var(--navy-800); padding: 22px 18px; background: var(--surface); } .principle-grid h3 { margin-top: 36px; }
.feedback-section { background: var(--ice-100); } .feedback-grid { display: grid; grid-template-columns: 1fr .9fr; align-items: start; gap: clamp(42px,9vw,110px); }
.pending-note { margin-top: 28px; border-left: 3px solid var(--cyan-400); padding: 14px 16px; background: rgba(255,255,255,.7); color: var(--muted); }
.discovery-questions { border: 1px solid #cbdde3; border-radius: var(--radius); padding: 28px; background: rgba(255,255,255,.78); box-shadow: 0 14px 40px rgba(7,26,49,.045); }
.discovery-questions h3 { margin-bottom: 18px; font-size: 1.1rem; }
.discovery-questions ol { display: grid; gap: 10px; margin: 0; padding: 0; counter-reset: question; list-style: none; }
.discovery-questions li { min-width: 0; display: grid; grid-template-columns: 30px minmax(0,1fr); gap: 10px; border: 1px solid #d8e5ea; border-radius: 9px; padding: 12px; background: var(--white); color: #29485e; line-height: 1.55; counter-increment: question; }
.discovery-questions li::before { width: 30px; height: 30px; display: grid; border-radius: 50%; background: var(--ice-100); color: var(--blue-500); font-family: var(--font-latin); font-size: .78rem; font-weight: 800; place-items: center; content: counter(question, decimal-leading-zero); }
.contact-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 18px; }
.contact-grid article { min-height: 260px; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; background: var(--white); }
.contact-grid h3 { margin-top: 46px; } .contact-grid strong { margin-top: auto; color: var(--navy-800); font-size: .9rem; }
.contact-section { padding-bottom: clamp(56px,7vw,88px); }
.site-footer { background: var(--navy-950); color: var(--white); padding: 54px 0 28px; } .footer-grid { display: grid; grid-template-columns: .8fr 1.2fr; align-items: center; gap: 40px; }
.footer-nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 12px 24px; } .footer-nav a { color: #c5d5e0; font-size: .9rem; text-decoration: none; } .footer-nav a:hover { color: var(--white); }
.footer-bottom { display: flex; justify-content: space-between; gap: 32px; margin-top: 42px; border-top: 1px solid rgba(255,255,255,.13); padding-top: 22px; color: #92aabd; font-size: .83rem; } .footer-bottom p { margin-bottom: 0; }
.brand:focus-visible, .main-nav a:focus-visible, .mobile-menu summary:focus-visible, .mobile-menu nav a:focus-visible, .button:focus-visible, .footer-nav a:focus-visible { outline: 3px solid var(--cyan-400); outline-offset: 4px; }
@media (max-width: 1050px) {
    .header-inner { min-height: auto; flex-direction: column; align-items: flex-start; padding-block: 18px; }
    .main-nav { width: 100%; justify-content: flex-start; gap: 4px 22px; }
    .capability-grid, .principle-grid { grid-template-columns: repeat(3,minmax(0,1fr)); }
}
@media (max-width: 800px) {
    html { scroll-padding-top: 88px; } .container, .header-inner { width: min(100% - 32px,680px); }
    .header-inner { min-height: 76px; flex-direction: row; align-items: center; padding-block: 10px; }
    .main-nav { display: none; }
    .mobile-menu { display: block; }
    .hero-grid, .section-heading, .journal-layout, .feedback-grid, .footer-grid { grid-template-columns: 1fr; }
    .hero-grid { min-height: auto; padding-block: 70px; } .development-panel { max-width: 560px; }
    .meaning-preview { grid-template-columns: 1fr; }
    .meaning-preview p + p { border-top: 1px solid rgba(255,255,255,.14); border-left: 0; }
    .product-grid, .contact-grid { grid-template-columns: 1fr; } .product-card { min-height: 320px; }
    .process-list { grid-template-columns: minmax(0,1fr); } .process-list li { min-height: auto; display: grid; grid-template-columns: 42px minmax(0,1fr); align-items: start; padding: 20px 8px; }
    .process-list li:not(:last-child)::after { display: none; } .process-list strong { margin-top: 0; } .process-list small { grid-column: 2; }
    .footer-nav { justify-content: flex-start; }
}
@media (max-width: 560px) {
    h1 { font-size: clamp(2.25rem,11vw,3.2rem); }
    .brand-logo-slot { width: 44px; height: 44px; flex-basis: 44px; } .brand-text strong { font-size: 1.08rem; } .brand-text span { font-size: .6rem; letter-spacing: .13em; }
    .main-nav { gap: 16px; } .button-row, .button { width: 100%; } .capability-grid, .principle-grid { grid-template-columns: 1fr; }
    .capability-grid article { min-height: auto; } .capability-grid h3, .principle-grid h3 { margin-top: 28px; }
    .product-card { min-height: 0; padding: 24px; } .product-card h3 { margin-top: 20px; }
    .product-visual { margin-inline: -24px; } .product-visual figcaption { padding-inline: 24px; }
    .development-panel { padding: 24px; }
    .discovery-questions { padding: 18px; }
    .contact-section { padding-bottom: 56px; }
    .journal-meta, .footer-bottom { flex-direction: column; gap: 8px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; } }