/* ============================================================ VertexScale โ€” AI Consulting Single-page site ยท light + dark themes (user-switchable) Theme is driven by [data-theme="light|dark"] on . ============================================================ */ /* ---------- Fonts (self-hosted IBM Plex) ---------- */ @font-face { font-family: "Plex Mono"; font-style: normal; font-weight: 400; font-display: swap; src: url("../fonts/plex-mono-400.woff2") format("woff2"); } @font-face { font-family: "Plex Mono"; font-style: normal; font-weight: 500; font-display: swap; src: url("../fonts/plex-mono-500.woff2") format("woff2"); } @font-face { font-family: "Plex Mono"; font-style: normal; font-weight: 600; font-display: swap; src: url("../fonts/plex-mono-600.woff2") format("woff2"); } @font-face { font-family: "Plex Mono"; font-style: normal; font-weight: 700; font-display: swap; src: url("../fonts/plex-mono-700.woff2") format("woff2"); } @font-face { font-family: "Plex Sans"; font-style: normal; font-weight: 400; font-display: swap; src: url("../fonts/plex-sans-400.woff2") format("woff2"); } @font-face { font-family: "Plex Sans"; font-style: normal; font-weight: 500; font-display: swap; src: url("../fonts/plex-sans-500.woff2") format("woff2"); } @font-face { font-family: "Plex Sans"; font-style: normal; font-weight: 600; font-display: swap; src: url("../fonts/plex-sans-600.woff2") format("woff2"); } @font-face { font-family: "Plex Sans"; font-style: normal; font-weight: 700; font-display: swap; src: url("../fonts/plex-sans-700.woff2") format("woff2"); } /* ---------- Shared tokens (theme-independent) ---------- */ :root { /* Brand โ€” electric blue from the mark */ --blue-400: #4f8bff; --blue-500: #2f6bff; --blue-600: #1f56e0; --blue-700: #1741b4; --ink: #0b1424; /* deep navy for the CTA band */ --font-display: "Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace; --font-body: "Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; --maxw: 1160px; --radius: 16px; --radius-sm: 10px; --grad-brand: linear-gradient(135deg, var(--blue-400) 0%, var(--blue-500) 55%, var(--blue-600) 100%); } /* ---------- LIGHT theme (default) ---------- */ :root, :root[data-theme="light"] { --bg: #ffffff; --bg-tint: #f4f7fd; --surface: #ffffff; --card-bg: #ffffff; --border: #e4e9f2; --border-strong: #c9d6f0; --text: #0f1b2d; --text-muted: #45536b; --text-dim: #6a778e; --shadow-sm: 0 1px 2px rgba(15, 27, 45, 0.06), 0 4px 14px rgba(15, 27, 45, 0.05); --shadow-md: 0 10px 30px -12px rgba(31, 86, 224, 0.28), 0 6px 18px rgba(15, 27, 45, 0.06); --grad-text: linear-gradient(120deg, var(--blue-600) 0%, var(--blue-500) 55%, var(--blue-400) 100%); --hero-bg: linear-gradient(180deg, #eef3ff 0%, #f6f9ff 40%, #ffffff 100%); --hero-glow: rgba(47, 107, 255, 0.16); --nav-bg: rgba(255, 255, 255, 0.82); --nav-shadow: 0 4px 24px rgba(15, 27, 45, 0.06); --nav-mobile-bg: rgba(255, 255, 255, 0.98); --footer-bg: #f4f7fd; --pill-bg: rgba(255, 255, 255, 0.7); --pill-border: var(--border-strong); --pill-color: var(--blue-700); --icon-tile: linear-gradient(140deg, #eaf1ff, #dbe7ff); --icon-stroke: var(--blue-600); --btn-ghost-bg: #ffffff; --btn-ghost-border: var(--border-strong); --btn-ghost-hover-bg: #f5f8ff; --about-bg: radial-gradient(120% 140% at 0% 0%, #eef3ff, #ffffff 55%); } /* ---------- DARK theme ---------- */ :root[data-theme="dark"] { --bg: #05070d; --bg-tint: #080b13; --surface: #0b0f1a; --card-bg: linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.01)); --border: rgba(255, 255, 255, 0.08); --border-strong: rgba(120, 160, 255, 0.28); --text: #eef2fb; --text-muted: #a7b0c4; --text-dim: #6d7689; --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.35); --shadow-md: 0 24px 50px -30px rgba(47, 107, 255, 0.6); --grad-text: linear-gradient(120deg, #ffffff 0%, #cfe0ff 40%, var(--blue-400) 100%); --hero-bg: transparent; --hero-glow: rgba(47, 107, 255, 0.28); --nav-bg: rgba(3, 5, 10, 0.78); --nav-shadow: none; --nav-mobile-bg: rgba(3, 5, 10, 0.97); --footer-bg: #000000; --pill-bg: rgba(255, 255, 255, 0.02); --pill-border: var(--border); --pill-color: var(--text-muted); --icon-tile: rgba(47, 107, 255, 0.12); --icon-stroke: var(--blue-400); --btn-ghost-bg: rgba(255, 255, 255, 0.03); --btn-ghost-border: var(--border); --btn-ghost-hover-bg: rgba(47, 107, 255, 0.08); --about-bg: radial-gradient(120% 140% at 0% 0%, rgba(47, 107, 255, 0.1), transparent 55%), var(--surface); } /* No-JS fallback: honor OS preference when no explicit theme is set */ @media (prefers-color-scheme: dark) { :root:not([data-theme]) { --bg: #05070d; --bg-tint: #080b13; --surface: #0b0f1a; --card-bg: linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.01)); --border: rgba(255, 255, 255, 0.08); --border-strong: rgba(120, 160, 255, 0.28); --text: #eef2fb; --text-muted: #a7b0c4; --text-dim: #6d7689; --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.35); --shadow-md: 0 24px 50px -30px rgba(47, 107, 255, 0.6); --grad-text: linear-gradient(120deg, #ffffff 0%, #cfe0ff 40%, var(--blue-400) 100%); --hero-bg: transparent; --hero-glow: rgba(47, 107, 255, 0.28); --nav-bg: rgba(3, 5, 10, 0.78); --nav-shadow: none; --nav-mobile-bg: rgba(3, 5, 10, 0.97); --footer-bg: #000000; --pill-bg: rgba(255, 255, 255, 0.02); --pill-border: var(--border); --pill-color: var(--text-muted); --icon-tile: rgba(47, 107, 255, 0.12); --icon-stroke: var(--blue-400); --btn-ghost-bg: rgba(255, 255, 255, 0.03); --btn-ghost-border: var(--border); --btn-ghost-hover-bg: rgba(47, 107, 255, 0.08); --about-bg: radial-gradient(120% 140% at 0% 0%, rgba(47, 107, 255, 0.1), transparent 55%), var(--surface); } } /* ---------- Reset / base ---------- */ *, *::before, *::after { box-sizing: border-box; } html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; } @media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } } body { margin: 0; background: var(--bg); color: var(--text); font-family: var(--font-body); font-size: 17px; line-height: 1.65; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; overflow-x: hidden; transition: background 0.3s ease, color 0.3s ease; } img { max-width: 100%; display: block; } a { color: inherit; text-decoration: none; } h1, h2, h3 { font-family: var(--font-display); font-weight: 600; line-height: 1.1; letter-spacing: -0.02em; margin: 0; color: var(--text); } :focus-visible { outline: 2px solid var(--blue-500); outline-offset: 3px; border-radius: 4px; } /* ---------- Layout helpers ---------- */ .wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: 24px; } section { position: relative; padding: 104px 0; } .eyebrow { font-family: var(--font-display); font-size: 0.78rem; font-weight: 600; letter-spacing: 0.22em; text-transform: uppercase; color: var(--blue-600); margin: 0 0 18px; display: flex; align-items: center; gap: 10px; } .eyebrow::before { content: ""; width: 26px; height: 2px; background: var(--blue-500); border-radius: 2px; } .section-head { max-width: 660px; margin-bottom: 56px; } .section-head h2 { font-size: clamp(1.9rem, 4vw, 2.9rem); } .section-head p { color: var(--text-muted); margin: 18px 0 0; font-size: 1.06rem; } .gradient-text { background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; } /* ---------- Theme visibility helpers ---------- */ .theme-dark-only { display: none; } .theme-light-only { display: block; } :root[data-theme="dark"] .theme-dark-only { display: block; } :root[data-theme="dark"] .theme-light-only { display: none; } @media (prefers-color-scheme: dark) { :root:not([data-theme]) .theme-dark-only { display: block; } :root:not([data-theme]) .theme-light-only { display: none; } } /* ---------- Buttons ---------- */ .btn { display: inline-flex; align-items: center; gap: 9px; font-family: var(--font-display); font-weight: 600; font-size: 0.94rem; letter-spacing: 0.01em; padding: 14px 26px; border-radius: 999px; border: 1px solid transparent; cursor: pointer; transition: transform 0.18s ease, box-shadow 0.25s ease, background 0.25s ease, border-color 0.25s ease, color 0.25s ease; white-space: nowrap; } .btn:active { transform: translateY(1px); } .btn-primary { background: var(--grad-brand); color: #ffffff; box-shadow: 0 10px 24px -8px rgba(31, 86, 224, 0.5); } .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 34px -10px rgba(31, 86, 224, 0.6); } .btn-ghost { background: var(--btn-ghost-bg); border-color: var(--btn-ghost-border); color: var(--text); } .btn-ghost:hover { border-color: var(--blue-500); color: var(--blue-500); background: var(--btn-ghost-hover-bg); } /* ---------- Navbar ---------- */ .nav { position: fixed; inset: 0 0 auto 0; z-index: 100; background: transparent; transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease, backdrop-filter 0.3s ease; border-bottom: 1px solid transparent; } .nav.scrolled { background: var(--nav-bg); backdrop-filter: blur(14px) saturate(140%); -webkit-backdrop-filter: blur(14px) saturate(140%); border-bottom-color: var(--border); box-shadow: var(--nav-shadow); } .nav-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; } .brand { display: flex; align-items: center; gap: 12px; } .brand-mark { width: 38px; height: 38px; border-radius: 9px; } .brand-name { font-family: var(--font-display); font-weight: 600; font-size: 1.16rem; letter-spacing: -0.01em; color: var(--text); } .brand-name b { font-weight: 700; } .nav-links { display: flex; align-items: center; gap: 34px; list-style: none; margin: 0; padding: 0; } .nav-links a { font-size: 0.95rem; color: var(--text-muted); transition: color 0.2s ease; } .nav-links a:hover { color: var(--blue-500); } .nav-cta { display: flex; align-items: center; gap: 14px; } /* Theme toggle button */ .theme-toggle { display: inline-grid; place-items: center; width: 42px; height: 42px; border-radius: 999px; border: 1px solid var(--btn-ghost-border); background: var(--btn-ghost-bg); color: var(--text); cursor: pointer; transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease, transform 0.2s ease; } .theme-toggle:hover { color: var(--blue-500); border-color: var(--blue-500); transform: translateY(-1px); } .theme-toggle .ico { display: block; width: 18px; height: 18px; stroke: currentColor; fill: none; } .ico-sun { display: none; } :root[data-theme="dark"] .ico-sun { display: block; } :root[data-theme="dark"] .ico-moon { display: none; } @media (prefers-color-scheme: dark) { :root:not([data-theme]) .ico-sun { display: block; } :root:not([data-theme]) .ico-moon { display: none; } } .nav-toggle { display: none; background: none; border: 0; padding: 8px; cursor: pointer; } .nav-toggle span { display: block; width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: transform 0.3s ease, opacity 0.3s ease; } .nav-toggle span + span { margin-top: 6px; } /* ---------- Hero ---------- */ .hero { padding-top: 168px; padding-bottom: 108px; text-align: center; overflow: hidden; background: var(--hero-bg); } .hero::before { content: ""; position: absolute; top: -180px; left: 50%; transform: translateX(-50%); width: 1000px; height: 760px; background: radial-gradient(46% 50% at 50% 42%, var(--hero-glow) 0%, transparent 72%); pointer-events: none; z-index: 0; } .hero .wrap { position: relative; z-index: 1; } .hero-logo { width: clamp(150px, 22vw, 196px); height: auto; margin: 8px auto 48px; } .pill { display: inline-flex; align-items: center; gap: 9px; font-family: var(--font-display); font-size: 0.8rem; letter-spacing: 0.03em; color: var(--pill-color); border: 1px solid var(--pill-border); background: var(--pill-bg); padding: 7px 16px; border-radius: 999px; margin-bottom: 30px; box-shadow: var(--shadow-sm); } .pill .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--blue-400); box-shadow: 0 0 0 4px rgba(47, 107, 255, 0.16); } .hero h1 { font-size: clamp(2.6rem, 7vw, 5.1rem); letter-spacing: -0.035em; margin: 0 auto; max-width: 15ch; } .hero p.lead { color: var(--text-muted); font-size: clamp(1.05rem, 2.3vw, 1.3rem); max-width: 60ch; margin: 26px auto 0; } .hero-cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 40px; } .hero-meta { margin-top: 56px; display: flex; gap: 14px 46px; justify-content: center; flex-wrap: wrap; color: var(--text-dim); font-family: var(--font-display); font-size: 0.82rem; letter-spacing: 0.04em; } .hero-meta span { display: inline-flex; align-items: center; gap: 9px; } .hero-meta span::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--blue-500); } /* ---------- Services ---------- */ .cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; } .card { position: relative; background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 32px 30px 34px; box-shadow: var(--shadow-sm); transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease; } .card:hover { transform: translateY(-5px); border-color: var(--border-strong); box-shadow: var(--shadow-md); } .card .num { font-family: var(--font-display); font-size: 0.8rem; color: var(--blue-500); letter-spacing: 0.15em; } .card .icon { width: 52px; height: 52px; border-radius: 13px; display: grid; place-items: center; margin: 18px 0 20px; background: var(--icon-tile); border: 1px solid var(--border-strong); } .card .icon svg { width: 26px; height: 26px; stroke: var(--icon-stroke); } .card h3 { font-size: 1.3rem; margin-bottom: 12px; } .card p { color: var(--text-muted); margin: 0 0 18px; font-size: 0.98rem; } .card ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; } .card ul li { position: relative; padding-left: 22px; font-size: 0.93rem; color: var(--text-muted); } .card ul li::before { content: ""; position: absolute; left: 0; top: 0.55em; width: 8px; height: 8px; border-radius: 2px; background: var(--grad-brand); } /* ---------- Audience / verticals ---------- */ .audience { background: var(--bg-tint); border-block: 1px solid var(--border); } .verticals { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; } .vertical { border: 1px solid var(--border); border-radius: var(--radius); padding: 28px 24px; background: var(--surface); box-shadow: var(--shadow-sm); transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease; } .vertical:hover { transform: translateY(-4px); border-color: var(--border-strong); box-shadow: var(--shadow-md); } .vertical .icon { width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; margin-bottom: 18px; background: var(--icon-tile); border: 1px solid var(--border-strong); } .vertical .icon svg { width: 24px; height: 24px; stroke: var(--icon-stroke); } .vertical h3 { font-size: 1.08rem; margin-bottom: 8px; } .vertical p { color: var(--text-muted); font-size: 0.9rem; margin: 0; } /* ---------- Approach / why ---------- */ .approach-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 64px; align-items: center; } .steps { display: grid; gap: 14px; counter-reset: step; } .step { display: flex; gap: 20px; padding: 22px 24px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--surface); box-shadow: var(--shadow-sm); transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease; } .step:hover { border-color: var(--border-strong); transform: translateX(4px); box-shadow: var(--shadow-md); } .step .n { counter-increment: step; font-family: var(--font-display); font-weight: 700; font-size: 1.1rem; color: var(--blue-500); min-width: 30px; } .step .n::before { content: "0" counter(step); } .step h3 { font-size: 1.08rem; margin-bottom: 6px; } .step p { margin: 0; color: var(--text-muted); font-size: 0.95rem; } .approach-copy h2 { font-size: clamp(1.9rem, 4vw, 2.9rem); } .approach-copy p { color: var(--text-muted); margin: 18px 0 0; } .stat-row { display: flex; gap: 40px; margin-top: 34px; flex-wrap: wrap; } .stat .big { font-family: var(--font-display); font-weight: 700; font-size: 2.3rem; background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; } .stat .lbl { color: var(--text-dim); font-size: 0.85rem; } /* ---------- About ---------- */ .about-card { border: 1px solid var(--border); border-radius: var(--radius); padding: 54px clamp(28px, 5vw, 64px); background: var(--about-bg); box-shadow: var(--shadow-sm); max-width: 860px; } .about-card h2 { font-size: clamp(1.7rem, 3.5vw, 2.4rem); margin-bottom: 20px; } .about-card p { color: var(--text-muted); font-size: 1.05rem; } .about-card p + p { margin-top: 16px; } .about-card .about-creds { font-family: var(--font-display); font-size: 0.85rem; letter-spacing: 0.02em; line-height: 1.7; color: var(--text-dim); margin-top: 26px; padding-top: 20px; border-top: 1px solid var(--border); } /* ---------- Contact / CTA (bold band โ€” same in both themes) ---------- */ .cta { text-align: center; } .cta-box { position: relative; border-radius: 26px; padding: clamp(48px, 6vw, 78px) 28px; overflow: hidden; color: #eaf0ff; background: radial-gradient(90% 150% at 50% -10%, #2f6bff 0%, #1c48c4 45%, var(--ink) 100%); box-shadow: 0 30px 60px -30px rgba(31, 86, 224, 0.55); } .cta-box h2 { color: #ffffff; font-size: clamp(2rem, 5vw, 3.3rem); max-width: 18ch; margin: 0 auto; } .cta-box p { color: #c7d6ff; max-width: 52ch; margin: 20px auto 0; font-size: 1.08rem; } .cta-box .hero-cta { margin-top: 36px; } .cta-box .btn-primary { background: #ffffff; color: var(--blue-700); box-shadow: 0 12px 30px -10px rgba(0, 0, 0, 0.4); } .cta-box .btn-primary:hover { background: #f2f6ff; } .cta-mail { margin-top: 26px; font-family: var(--font-display); font-size: 0.95rem; color: #9fb4ea; } .cta-mail a { color: #ffffff; text-decoration: underline; text-underline-offset: 3px; } /* ---------- Footer ---------- */ footer { background: var(--footer-bg); border-top: 1px solid var(--border); padding: 56px 0 40px; } .footer-inner { display: flex; justify-content: space-between; align-items: flex-start; gap: 30px; flex-wrap: wrap; } .footer-brand { max-width: 320px; } .footer-brand .brand { margin-bottom: 16px; } .footer-brand p { color: var(--text-dim); font-size: 0.92rem; margin: 0; } .footer-links { display: flex; gap: 60px; flex-wrap: wrap; } .footer-col h4 { font-family: var(--font-display); font-size: 0.78rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--text-dim); margin: 0 0 16px; } .footer-col a, .footer-col span { display: block; color: var(--text-muted); font-size: 0.94rem; margin-bottom: 11px; transition: color 0.2s ease; } .footer-col a:hover { color: var(--blue-500); } .footer-bottom { margin-top: 46px; padding-top: 24px; border-top: 1px solid var(--border); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; color: var(--text-dim); font-size: 0.85rem; font-family: var(--font-display); } /* ---------- Scroll reveal ---------- */ .reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.7s ease, transform 0.7s ease; } .reveal.in { opacity: 1; transform: none; } @media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } } /* ---------- Responsive ---------- */ @media (max-width: 940px) { .cards { grid-template-columns: 1fr; } .verticals { grid-template-columns: repeat(2, 1fr); } .approach-grid { grid-template-columns: 1fr; gap: 40px; } } @media (max-width: 720px) { section { padding: 76px 0; } .nav-links, .nav-cta .btn-ghost, .nav-cta .btn-primary { display: none; } .nav-toggle { display: block; } .nav-links.open { display: flex; flex-direction: column; position: absolute; top: 72px; left: 0; right: 0; gap: 4px; padding: 18px 24px 26px; background: var(--nav-mobile-bg); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid var(--border); box-shadow: var(--shadow-md); } .nav-links.open a { padding: 12px 0; font-size: 1.05rem; width: 100%; border-bottom: 1px solid var(--border); color: var(--text); } .footer-inner { flex-direction: column; } } @media (max-width: 460px) { .verticals { grid-template-columns: 1fr; } .hero-meta { gap: 12px 26px; } }