/* xassistant — umbrella "tools collection" page.
 * Static, dependency-free, strict-CSP (style-src 'self').
 * Calm, gallery-like; each tool keeps its own accent. */

:root {
  --bg: #0f1117;
  --bg-2: #151823;
  --card: #181c28;
  --card-2: #1d2230;
  --ink-1: #f3f5f9;
  --ink-2: #b9c0cf;
  --ink-3: #828a9c;
  --line: #262b3a;
  --line-2: #2f3547;
  --accent: #818cf8;
  --accent-ink: #a5b4fc;
  --yank: #b8e856;
  --radius: 16px;
  --maxw: 1080px;
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC",
    "Microsoft YaHei", sans-serif;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
}

* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink-1);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
}
h1,
h2,
h3 {
  margin: 0;
  line-height: 1.15;
  letter-spacing: -0.02em;
}
p {
  margin: 0;
}
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* nav */
.nav {
  border-bottom: 1px solid var(--line);
  background: rgba(15, 17, 23, 0.85);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 20;
}
.nav-inner {
  display: flex;
  align-items: center;
  height: 62px;
  gap: 18px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 16.5px;
}
.logo {
  width: 26px;
  height: 26px;
  border-radius: 8px;
  background: linear-gradient(135deg, #818cf8, #b8e856);
  flex: none;
}
.nav-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 16px;
}
.lang-switch {
  font-size: 13px;
  color: var(--ink-3);
  display: inline-flex;
  gap: 6px;
}
.lang-switch a.on {
  color: var(--accent-ink);
  font-weight: 600;
}
.nav-mail {
  font-size: 13.5px;
  color: var(--ink-2);
}
.nav-mail:hover {
  color: var(--ink-1);
}

/* hero */
.hero {
  text-align: center;
  padding: 84px 0 30px;
}
.hero .eyebrow {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--accent-ink);
  text-transform: uppercase;
}
.hero h1 {
  font-size: 50px;
  font-weight: 850;
  max-width: 720px;
  margin: 18px auto 0;
}
.hero p {
  font-size: 19px;
  color: var(--ink-2);
  max-width: 560px;
  margin: 18px auto 0;
}

/* tools grid */
.tools {
  padding: 44px 0 36px;
}
.grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.tool {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color 0.15s ease, transform 0.08s ease, background 0.15s ease;
}
.tool:hover {
  border-color: var(--line-2);
  background: var(--card-2);
  transform: translateY(-2px);
}
.tool.soon {
  opacity: 0.72;
}
.tool-top {
  display: flex;
  align-items: center;
  gap: 13px;
  margin-bottom: 16px;
}
.tool-ic {
  width: 44px;
  height: 44px;
  border-radius: 11px;
  flex: none;
  position: relative;
}
.tool-ic.yank {
  background: var(--yank);
}
.tool-ic.snapfit {
  background: var(--accent);
}
.tool-ic.dim {
  background: var(--line-2);
}
.tool-ic.snapfit::before {
  content: "";
  position: absolute;
  inset: 11px;
  border: 2.5px solid #fff;
  border-radius: 3px;
}
.tool-ic svg {
  position: absolute;
  inset: 0;
  margin: auto;
}
.tool-name {
  font-size: 21px;
  font-weight: 800;
}
.tool-tag {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 3px 9px;
  border-radius: 99px;
  margin-left: auto;
}
.tag-live {
  color: #bbf7d0;
  background: rgba(22, 163, 74, 0.18);
}
.tag-new {
  color: var(--accent-ink);
  background: rgba(129, 140, 248, 0.16);
}
.tag-soon {
  color: var(--ink-3);
  background: rgba(130, 138, 156, 0.14);
}
.tool p {
  color: var(--ink-2);
  font-size: 15px;
  flex: 1;
}
.tool-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 16px 0 18px;
}
.chip {
  font-size: 12px;
  color: var(--ink-2);
  border: 1px solid var(--line-2);
  border-radius: 7px;
  padding: 3px 9px;
}
.tool-cta {
  font-weight: 600;
  font-size: 14.5px;
  color: var(--accent-ink);
}
.tool.yankcard .tool-cta {
  color: var(--yank);
}
.tool-cta.muted {
  color: var(--ink-3);
}

/* contact */
.contact {
  padding: 30px 0 80px;
}
.contact-box {
  text-align: center;
  border: 1px dashed var(--line-2);
  border-radius: var(--radius);
  padding: 40px 28px;
  background: var(--bg-2);
}
.contact-box h2 {
  font-size: 28px;
}
.contact-box p {
  color: var(--ink-2);
  font-size: 16px;
  max-width: 480px;
  margin: 14px auto 20px;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 15px;
  padding: 12px 22px;
  border-radius: 11px;
  background: var(--accent);
  color: #0f1117;
}
.btn:hover {
  background: var(--accent-ink);
}
.mailcode {
  font-family: var(--mono);
  font-weight: 700;
}

/* footer */
.foot {
  border-top: 1px solid var(--line);
  padding: 30px 0;
  color: var(--ink-3);
  font-size: 13.5px;
}
.foot-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
}
.foot a:hover {
  color: var(--ink-1);
}
.foot-links {
  display: flex;
  gap: 18px;
}

@media (max-width: 760px) {
  .hero h1 {
    font-size: 36px;
  }
  .grid {
    grid-template-columns: 1fr;
  }
}