/* Sideworks studio site. Premium, calm, dark-first with a light theme. */
:root {
  --bg: #F7F8FB; --bg2: #EEF1F7; --ink: #0A1022; --ink2: #3A4560; --mute: #667188; --line: rgba(10, 16, 34, .10);
  --card: #FFFFFF; --accent: #1E5EFF; --accent2: #6C4DFF; --glow: rgba(30, 94, 255, .14);
  --shadow: 0 1px 0 rgba(255, 255, 255, .6) inset, 0 24px 60px -24px rgba(10, 16, 34, .25);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #070B16; --bg2: #0B1122; --ink: #F1F4FC; --ink2: #B6BFD6; --mute: #8590AA; --line: rgba(255, 255, 255, .09);
    --card: #0E1528; --accent: #5B8CFF; --accent2: #8B73FF; --glow: rgba(91, 140, 255, .18);
    --shadow: 0 1px 0 rgba(255, 255, 255, .04) inset, 0 28px 70px -28px rgba(0, 0, 0, .7);
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.6 -apple-system, "Segoe UI Variable", "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
a { color: inherit; }
img { max-width: 100%; height: auto; }
h1, h2, h3 { margin: 0; letter-spacing: -.03em; line-height: 1.08; font-weight: 750; text-wrap: balance; }
p { margin: 0; }
.wrap { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }

/* header */
.site { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--bg) 78%, transparent); backdrop-filter: saturate(1.4) blur(14px); border-bottom: 1px solid var(--line); }
.site .wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; font-weight: 800; letter-spacing: -.02em; font-size: 19px; }
.mark { width: 30px; height: 30px; border-radius: 9px; background: linear-gradient(135deg, var(--accent), var(--accent2)); position: relative; flex: none; box-shadow: 0 6px 18px -6px var(--accent); }
.mark::after { content: ""; position: absolute; inset: 8px 8px 8px 11px; border-radius: 3px; background: rgba(255, 255, 255, .95); transform: skewX(-14deg); }
.site nav { display: flex; align-items: center; gap: 6px; }
.site nav a { text-decoration: none; color: var(--ink2); font-weight: 600; font-size: 15px; padding: 8px 14px; border-radius: 10px; }
.site nav a:hover, .site nav a[aria-current] { color: var(--ink); background: var(--glow); }
.site nav a.cta { background: var(--ink); color: var(--bg); margin-left: 6px; }
.site nav a.cta:hover { opacity: .88; }

/* buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; text-decoration: none; font-weight: 700; font-size: 16px; padding: 14px 24px; border-radius: 14px; background: linear-gradient(135deg, var(--accent), var(--accent2)); color: #fff; box-shadow: 0 14px 34px -12px var(--accent); transition: transform .15s, box-shadow .15s; }
.btn:hover { transform: translateY(-2px); }
.btn.ghost { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 1.5px var(--line); }
.btn.ghost:hover { box-shadow: inset 0 0 0 1.5px var(--accent); }

/* hero */
.hero { position: relative; padding: 112px 0 96px; overflow: hidden; text-align: center; }
.hero::before { content: ""; position: absolute; inset: -20% -10% auto; height: 520px; background: radial-gradient(60% 60% at 50% 0%, var(--glow), transparent 70%); pointer-events: none; }
.eyebrow { display: inline-block; font-size: 13px; font-weight: 750; letter-spacing: .14em; text-transform: uppercase; color: var(--accent); }
.hero h1 { font-size: clamp(40px, 7vw, 84px); max-width: 15ch; margin: 18px auto 0; }
.hero h1 em { font-style: normal; background: linear-gradient(135deg, var(--accent), var(--accent2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .sub { font-size: clamp(18px, 2vw, 21px); color: var(--ink2); max-width: 58ch; margin: 26px auto 0; }
.hero .actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 38px; }

/* sections */
section { padding: 88px 0; }
.alt { background: var(--bg2); border-block: 1px solid var(--line); }
.head { max-width: 680px; margin: 0 0 48px; }
.head.center { margin-inline: auto; text-align: center; }
.head h2 { font-size: clamp(30px, 4vw, 46px); margin-top: 12px; }
.head p { color: var(--ink2); margin-top: 16px; font-size: 18px; }

.pillars { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.pillar { padding: 26px; border: 1px solid var(--line); border-radius: 22px; background: var(--card); box-shadow: var(--shadow); }
.pillar .n { font-size: 13px; font-weight: 800; color: var(--accent); letter-spacing: .1em; }
.pillar h3 { font-size: 20px; margin: 14px 0 8px; letter-spacing: -.02em; }
.pillar p { color: var(--ink2); font-size: 15.5px; }

.apps { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.app { display: flex; flex-direction: column; gap: 14px; padding: 32px; border: 1px solid var(--line); border-radius: 28px; background: var(--card); box-shadow: var(--shadow); text-decoration: none; position: relative; overflow: hidden; transition: transform .2s; }
a.app:hover { transform: translateY(-4px); }
.app::before { content: ""; position: absolute; inset: -40% -20% auto auto; width: 360px; height: 360px; background: radial-gradient(closest-side, var(--glow), transparent); pointer-events: none; }
.app .icon { width: 68px; height: 68px; border-radius: 17px; box-shadow: 0 10px 26px -10px rgba(0, 0, 0, .55); }
.app .icon.ph { display: grid; place-items: center; background: linear-gradient(135deg, #12B981, #0A7D5A); color: #fff; font-weight: 800; font-size: 26px; }
.app h3 { font-size: 28px; }
.app p { color: var(--ink2); }
.app .meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto; padding-top: 10px; }
.tag { font-size: 13px; font-weight: 700; padding: 6px 12px; border-radius: 999px; background: var(--glow); color: var(--accent); }
.tag.mute { background: var(--bg2); color: var(--mute); box-shadow: inset 0 0 0 1px var(--line); }
.app .go { font-weight: 750; color: var(--accent); }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.prose p { color: var(--ink2); margin-bottom: 18px; font-size: 18px; }
.prose h2 { font-size: clamp(28px, 3.4vw, 40px); margin-bottom: 22px; }
.list { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.list li { display: grid; grid-template-columns: 28px 1fr; gap: 12px; color: var(--ink2); }
.list li::before { content: "✓"; display: grid; place-items: center; width: 24px; height: 24px; border-radius: 50%; background: var(--glow); color: var(--accent); font-weight: 800; font-size: 13px; margin-top: 2px; }
.list b { color: var(--ink); }

.cta-band { text-align: center; padding: 96px 0; background: radial-gradient(70% 90% at 50% 0%, var(--glow), transparent 70%); }
.cta-band h2 { font-size: clamp(30px, 4.4vw, 52px); max-width: 18ch; margin: 0 auto; }
.cta-band p { color: var(--ink2); margin: 18px auto 32px; max-width: 52ch; font-size: 18px; }

/* inner pages */
.pagehead { padding: 88px 0 24px; }
.pagehead h1 { font-size: clamp(36px, 5.4vw, 64px); max-width: 18ch; margin-top: 14px; }
.pagehead p { color: var(--ink2); font-size: 20px; margin-top: 20px; max-width: 60ch; }
.doc { max-width: 760px; padding: 24px 0 96px; }
.doc h2 { font-size: 26px; margin: 44px 0 12px; }
.doc p, .doc li { color: var(--ink2); }
.doc p { margin-bottom: 14px; }
.doc ul { padding-left: 20px; }
.doc a { color: var(--accent); }
.contactcard { display: grid; gap: 6px; padding: 32px; border: 1px solid var(--line); border-radius: 24px; background: var(--card); box-shadow: var(--shadow); max-width: 560px; }
.contactcard .mail { font-size: clamp(22px, 3.4vw, 32px); font-weight: 750; letter-spacing: -.02em; color: var(--accent); text-decoration: none; word-break: break-all; }
.contactcard p { color: var(--ink2); }

/* footer */
footer { border-top: 1px solid var(--line); padding: 56px 0 44px; background: var(--bg2); }
.fgrid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; }
footer p { color: var(--mute); font-size: 15px; max-width: 40ch; margin-top: 14px; }
footer h4 { margin: 0 0 12px; font-size: 13px; letter-spacing: .1em; text-transform: uppercase; color: var(--mute); }
footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 9px; }
footer a { text-decoration: none; color: var(--ink2); font-size: 15px; }
footer a:hover { color: var(--accent); }
.legal { margin-top: 40px; padding-top: 22px; border-top: 1px solid var(--line); color: var(--mute); font-size: 13.5px; display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between; }

@media (max-width: 900px) {
  .pillars { grid-template-columns: 1fr 1fr; }
  .split { grid-template-columns: 1fr; gap: 32px; }
  .fgrid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  section { padding: 60px 0; }
  .hero { padding: 72px 0 64px; }
  .apps, .pillars { grid-template-columns: 1fr; }
  .site nav a:not(.cta) { display: none; }
  .fgrid { grid-template-columns: 1fr; }
  .app { padding: 24px; }
}