/* ========================================================================== TOSF — Main Stylesheet (Modern Tech Minimalist) ========================================================================== */ /* Design tokens are inlined (no @import) so the browser doesn't wait for a second CSS round trip before it can start rendering. Google Fonts are loaded via a in each page's for the same reason. */ :root { /* Colors — neutral foundation */ --color-bg: #ffffff; --color-bg-alt: #fafafa; --color-bg-code: #0b0b0c; --color-surface: #ffffff; --color-border: #e5e7eb; --color-border-strong: #111111; --color-text: #111111; --color-text-muted: #4b5563; /* 7.46:1 on #fff — AAA */ --color-text-subtle: #6b7280; /* 4.83:1 on #fff — AA */ --color-text-inverse: #ffffff; /* Colors — single brand accent (Thailand saffron orange) */ --color-accent: #e85d23; --color-accent-hover: #c94a15; --color-accent-soft: #fef0e9; --color-accent-text: #b53f0d; /* 5.7:1 on #fff, 4.9:1 on #fef0e9 — AA */ /* Status */ --color-success: #16a34a; --color-warning: #d97706; --color-danger: #dc2626; /* Typography */ --font-sans: 'Inter', 'IBM Plex Sans Thai', 'Sarabun', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; --font-mono: 'JetBrains Mono', 'Fira Code', 'SFMono-Regular', ui-monospace, Consolas, monospace; --font-thai: 'IBM Plex Sans Thai', 'Sarabun', 'Noto Sans Thai', sans-serif; --fs-xs: 0.75rem; --fs-sm: 0.875rem; --fs-base: 1rem; --fs-lg: 1.125rem; --fs-xl: 1.25rem; --fs-2xl: 1.5rem; --fs-3xl: 2rem; --fs-4xl: 2.75rem; --fs-5xl: 4rem; --lh-tight: 1.15; --lh-snug: 1.35; --lh-normal: 1.6; --fw-regular: 400; --fw-medium: 500; --fw-semibold: 600; --fw-bold: 700; /* Spacing (4px base) */ --space-1: 0.25rem; --space-2: 0.5rem; --space-3: 0.75rem; --space-4: 1rem; --space-5: 1.5rem; --space-6: 2rem; --space-7: 3rem; --space-8: 4rem; --space-9: 6rem; --space-10: 8rem; /* Layout */ --container-max: 1200px; --container-narrow: 760px; --radius-sm: 4px; --radius-md: 8px; --radius-lg: 12px; /* Motion */ --ease: cubic-bezier(0.2, 0.8, 0.2, 1); --dur-fast: 150ms; --dur-base: 250ms; /* Elevation — used sparingly in minimalist style */ --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04); --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.06); --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.08); } [data-theme="dark"] { --color-bg: #0b0b0c; --color-bg-alt: #131316; --color-surface: #17171a; --color-border: #27272a; --color-text: #fafafa; --color-text-muted: #a1a1aa; } /* --- Reset ------------------------------------------------------------- */ *, *::before, *::after { box-sizing: border-box; } html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; } body, h1, h2, h3, h4, h5, h6, p, figure, blockquote, dl, dd { margin: 0; } ul, ol { margin: 0; padding: 0; list-style: none; } img, svg, video { display: block; max-width: 100%; height: auto; } button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; padding: 0; } a { color: inherit; text-decoration: none; } input, textarea, select { font: inherit; } /* --- Base -------------------------------------------------------------- */ body { font-family: var(--font-sans); font-size: var(--fs-base); line-height: var(--lh-normal); color: var(--color-text); background: var(--color-bg); -webkit-font-smoothing: antialiased; min-height: 100vh; display: flex; flex-direction: column; } /* Subtle grid background pattern — very faint */ body::before { content: ''; position: fixed; inset: 0; pointer-events: none; z-index: -1; background-image: linear-gradient(to right, rgba(0,0,0,0.02) 1px, transparent 1px), linear-gradient(to bottom, rgba(0,0,0,0.02) 1px, transparent 1px); background-size: 40px 40px; } [lang="th"] body, body[lang="th"] { font-family: var(--font-thai); } main { flex: 1; } /* --- Typography -------------------------------------------------------- */ h1, h2, h3, h4 { font-weight: var(--fw-bold); line-height: var(--lh-tight); letter-spacing: -0.02em; } h1 { font-size: clamp(2rem, 5vw, var(--fs-5xl)); } h2 { font-size: clamp(1.5rem, 3.5vw, var(--fs-4xl)); } h3 { font-size: var(--fs-2xl); } h4 { font-size: var(--fs-xl); } p { line-height: var(--lh-normal); color: var(--color-text); } p + p { margin-top: var(--space-4); } .text-muted { color: var(--color-text-muted); } .text-mono { font-family: var(--font-mono); } .text-sm { font-size: var(--fs-sm); } .eyebrow { font-family: var(--font-mono); font-size: var(--fs-sm); color: var(--color-accent-text); text-transform: uppercase; letter-spacing: 0.08em; font-weight: var(--fw-medium); display: inline-flex; align-items: center; gap: var(--space-2); } .eyebrow::before { content: ''; width: 24px; height: 1px; background: var(--color-accent-text); } a.link { color: var(--color-text); border-bottom: 1px solid var(--color-border-strong); transition: color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease); } a.link:hover { color: var(--color-accent); border-color: var(--color-accent); } /* --- Layout ------------------------------------------------------------ */ .container { width: 100%; max-width: var(--container-max); margin: 0 auto; padding: 0 var(--space-5); } .container-narrow { max-width: var(--container-narrow); margin: 0 auto; padding: 0 var(--space-5); } .section { padding: var(--space-9) 0; } .section-sm { padding: var(--space-7) 0; } .grid { display: grid; gap: var(--space-5); } .grid-2 { grid-template-columns: repeat(2, 1fr); } .grid-3 { grid-template-columns: repeat(3, 1fr); } .grid-4 { grid-template-columns: repeat(4, 1fr); } @media (max-width: 900px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } } @media (max-width: 600px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } } /* --- Header / Nav ------------------------------------------------------ */ .site-header { position: sticky; top: 0; z-index: 50; background: rgba(255, 255, 255, 0.85); backdrop-filter: saturate(180%) blur(12px); -webkit-backdrop-filter: saturate(180%) blur(12px); border-bottom: 1px solid var(--color-border); } .nav { display: flex; align-items: center; justify-content: space-between; height: 68px; } .brand { display: flex; align-items: center; gap: var(--space-3); font-family: var(--font-mono); font-weight: var(--fw-bold); font-size: var(--fs-base); letter-spacing: -0.02em; } .brand-mark { height: 32px; width: auto; display: block; object-fit: contain; } .nav-links { display: flex; align-items: center; gap: var(--space-6); } .nav-links a { font-size: var(--fs-sm); font-weight: var(--fw-medium); color: var(--color-text-muted); transition: color var(--dur-fast) var(--ease); } .nav-links a:hover, .nav-links a.active { color: var(--color-text); } .nav-right { display: flex; align-items: center; gap: var(--space-4); } .lang-toggle { display: inline-flex; border: 1px solid var(--color-border); border-radius: var(--radius-sm); overflow: hidden; font-family: var(--font-mono); font-size: var(--fs-xs); } .lang-toggle button { padding: var(--space-2) var(--space-3); color: var(--color-text-muted); transition: all var(--dur-fast) var(--ease); } .lang-toggle button.active { background: var(--color-border-strong); color: var(--color-text-inverse); } .mobile-toggle { display: none; width: 40px; height: 40px; align-items: center; justify-content: center; } .mobile-toggle span { display: block; width: 20px; height: 2px; background: var(--color-text); position: relative; } .mobile-toggle span::before, .mobile-toggle span::after { content: ''; position: absolute; left: 0; width: 20px; height: 2px; background: var(--color-text); } .mobile-toggle span::before { top: -6px; } .mobile-toggle span::after { top: 6px; } @media (max-width: 820px) { .nav-links { position: fixed; top: 68px; left: 0; right: 0; background: var(--color-bg); flex-direction: column; align-items: stretch; gap: 0; padding: var(--space-4); border-bottom: 1px solid var(--color-border); transform: translateY(-120%); transition: transform var(--dur-base) var(--ease); } .nav-links.open { transform: translateY(0); } .nav-links a { padding: var(--space-3) 0; border-bottom: 1px solid var(--color-border); font-size: var(--fs-base); } .mobile-toggle { display: inline-flex; } } /* --- Buttons ----------------------------------------------------------- */ .btn { display: inline-flex; align-items: center; gap: var(--space-2); padding: var(--space-3) var(--space-5); font-size: var(--fs-sm); font-weight: var(--fw-semibold); border-radius: var(--radius-sm); transition: all var(--dur-fast) var(--ease); cursor: pointer; white-space: nowrap; border: 1px solid transparent; } .btn-primary { background: var(--color-border-strong); color: var(--color-text-inverse); } .btn-primary:hover { background: var(--color-accent); transform: translateY(-1px); } .btn-outline { border-color: var(--color-border-strong); color: var(--color-text); background: transparent; } .btn-outline:hover { background: var(--color-border-strong); color: var(--color-text-inverse); } .btn-ghost { color: var(--color-text); } .btn-ghost:hover { color: var(--color-accent); } .btn-sm { padding: var(--space-2) var(--space-3); font-size: var(--fs-xs); } /* --- Hero -------------------------------------------------------------- */ .hero { padding: var(--space-10) 0 var(--space-9); position: relative; overflow: hidden; } .hero h1 { max-width: 14ch; margin-top: var(--space-4); } .hero h1 .accent { color: var(--color-accent-text); } .hero p.lead { margin-top: var(--space-5); font-size: var(--fs-xl); color: var(--color-text-muted); max-width: 52ch; line-height: var(--lh-snug); } .hero-actions { margin-top: var(--space-6); display: flex; gap: var(--space-3); flex-wrap: wrap; } .hero-meta { margin-top: var(--space-7); padding-top: var(--space-5); border-top: 1px solid var(--color-border); display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-5); } .hero-meta > div .num { font-family: var(--font-mono); font-size: var(--fs-3xl); font-weight: var(--fw-bold); display: block; } .hero-meta > div .label { font-size: var(--fs-sm); color: var(--color-text-muted); } @media (max-width: 600px) { .hero-meta { grid-template-columns: 1fr; } } /* --- Cards ------------------------------------------------------------- */ .card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: var(--space-5); transition: all var(--dur-base) var(--ease); display: flex; flex-direction: column; height: 100%; } .card:hover { border-color: var(--color-border-strong); transform: translateY(-2px); box-shadow: var(--shadow-md); } .card h3 { font-size: var(--fs-xl); margin-bottom: var(--space-2); } .card p { color: var(--color-text-muted); font-size: var(--fs-sm); flex: 1; } .team-group-title { font-family: var(--font-mono); font-size: var(--fs-sm); font-weight: var(--fw-medium); text-transform: uppercase; letter-spacing: 0.08em; color: var(--color-text-muted); padding-bottom: var(--space-3); margin-bottom: var(--space-5); border-bottom: 1px solid var(--color-border); } .card-meta { margin-top: var(--space-4); padding-top: var(--space-4); border-top: 1px solid var(--color-border); display: flex; align-items: center; justify-content: space-between; font-family: var(--font-mono); font-size: var(--fs-xs); color: var(--color-text-muted); } .card-image { margin: calc(-1 * var(--space-5)) calc(-1 * var(--space-5)) var(--space-4); aspect-ratio: 16 / 9; overflow: hidden; border-radius: var(--radius-md) var(--radius-md) 0 0; background: var(--color-bg-alt); } .card-image img { width: 100%; height: 100%; object-fit: cover; } .tag { display: inline-block; padding: 2px var(--space-2); font-family: var(--font-mono); font-size: var(--fs-xs); background: var(--color-accent-soft); color: var(--color-accent-text); border-radius: var(--radius-sm); } /* --- Sections ---------------------------------------------------------- */ .section-header { display: flex; align-items: end; justify-content: space-between; margin-bottom: var(--space-6); gap: var(--space-5); flex-wrap: wrap; } .section-header h2 { max-width: 20ch; } .section-header p { color: var(--color-text-muted); max-width: 48ch; } /* --- Footer ------------------------------------------------------------ */ .site-footer { background: var(--color-bg-code); color: var(--color-text-inverse); padding: var(--space-8) 0 var(--space-5); margin-top: var(--space-9); } .site-footer a { color: #d4d4d8; } .site-footer a:hover { color: var(--color-accent); } .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: var(--space-6); } .footer-grid .footer-heading { font-size: var(--fs-sm); font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 0.08em; color: #a1a1aa; margin-bottom: var(--space-3); font-weight: var(--fw-medium); } .footer-grid ul li { margin-bottom: var(--space-2); font-size: var(--fs-sm); } .footer-bottom { margin-top: var(--space-7); padding-top: var(--space-4); border-top: 1px solid #27272a; display: flex; justify-content: space-between; font-size: var(--fs-xs); color: #a1a1aa; font-family: var(--font-mono); } @media (max-width: 820px) { .footer-grid { grid-template-columns: 1fr 1fr; } } @media (max-width: 500px) { .footer-grid { grid-template-columns: 1fr; } .footer-bottom { flex-direction: column; gap: var(--space-2); } } /* --- Forms ------------------------------------------------------------- */ .form-field { margin-bottom: var(--space-4); } .form-field label { display: block; font-size: var(--fs-sm); font-weight: var(--fw-medium); margin-bottom: var(--space-2); } .form-field input, .form-field textarea, .form-field select { width: 100%; padding: var(--space-3) var(--space-4); border: 1px solid var(--color-border); border-radius: var(--radius-sm); background: var(--color-bg); color: var(--color-text); transition: border-color var(--dur-fast) var(--ease); } .form-field input:focus, .form-field textarea:focus, .form-field select:focus { outline: none; border-color: var(--color-accent); } .form-field textarea { min-height: 140px; resize: vertical; font-family: inherit; } /* --- Utility ----------------------------------------------------------- */ .divider { height: 1px; background: var(--color-border); margin: var(--space-6) 0; } .skeleton { position: relative; background: var(--color-bg-alt); border-radius: var(--radius-sm); overflow: hidden; isolation: isolate; } .skeleton::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, transparent, #f0f0f0, transparent); transform: translate3d(-100%, 0, 0); will-change: transform; animation: shimmer 1.4s infinite; } @keyframes shimmer { 0% { transform: translate3d(-100%, 0, 0); } 100% { transform: translate3d(100%, 0, 0); } } /* Shimmer for image containers — applied via JS, removed when img loads */ .img-skeleton { position: relative; overflow: hidden; isolation: isolate; } .img-skeleton::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent); transform: translate3d(-100%, 0, 0); will-change: transform; animation: shimmer 1.4s infinite; pointer-events: none; } /* Blog post cover image */ .post-cover { aspect-ratio: 16 / 9; overflow: hidden; border-radius: var(--radius-md); margin-top: 2rem; background: var(--color-bg-alt); } .post-cover img { width: 100%; height: 100%; object-fit: cover; display: block; } /* Body images — grey placeholder until loaded, prevents layout shift */ .post-body img { display: block; min-height: 120px; background: var(--color-bg-alt); border-radius: var(--radius-sm); transition: background 0.3s; } .post-body img.img-loaded { min-height: unset; background: none; } /* i18n visibility */ [data-i18n-lang] { display: none; } html[lang="en"] [data-i18n-lang="en"], html[lang="th"] [data-i18n-lang="th"] { display: initial; } .hidden { display: none !important; } .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; } /* Keyboard focus — visible focus ring for a11y (WCAG 2.4.7) */ :focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; border-radius: 2px; } a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible { outline-offset: 3px; } /* Skip-to-main link — hidden until focused */ .skip-link { position: absolute; top: -40px; left: var(--space-4); background: var(--color-text); color: var(--color-text-inverse); padding: var(--space-2) var(--space-4); border-radius: var(--radius-sm); font-size: var(--fs-sm); font-weight: var(--fw-semibold); z-index: 100; transition: top var(--dur-fast) var(--ease); } .skip-link:focus { top: var(--space-3); } /* --- Page loader ------------------------------------------------------- */ /* Full-viewport overlay shown while main.js boots (partials + i18n). Dismissed by adding .is-hidden once the app is ready to paint content. */ #page-loader { position: fixed; inset: 0; background: var(--color-bg); display: grid; place-items: center; gap: var(--space-3); z-index: 9999; transition: opacity 0.25s var(--ease), visibility 0.25s var(--ease); } #page-loader.is-hidden { opacity: 0; visibility: hidden; pointer-events: none; } .page-loader__mark { display: grid; place-items: center; gap: var(--space-3); } .page-loader__logo { animation: page-loader-pulse 1.4s ease-in-out infinite; } .page-loader__ring { width: 28px; height: 28px; border: 2px solid var(--color-border); border-top-color: var(--color-accent); border-radius: 50%; animation: page-loader-spin 0.9s linear infinite; } .page-loader__sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); } @keyframes page-loader-pulse { 0%, 100% { opacity: 0.45; transform: scale(0.97); } 50% { opacity: 1; transform: scale(1); } } @keyframes page-loader-spin { to { transform: rotate(360deg); } } @media (prefers-reduced-motion: reduce) { .page-loader__logo, .page-loader__ring { animation: none; opacity: 1; } *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; } }