/* DEVLIB v06 — 21st-inspired polish with progressive GSAP motion. */
:root {
  --bg-base: #050507;
  --bg-deep: #090a0d;
  --bg-card: #101113;
  --bg-card-hi: #15171a;
  --text: #f2f2f2;
  --text-soft: #b8b3b0;
  --text-faint: #949aa4;
  --accent: #00d992;
  --accent-solid: #00a875;
  --accent-alt: #818cf8;
  --accent-rgb: 0 217 146;
  --accent-solid-rgb: 0 168 117;
  --accent-alt-rgb: 129 140 248;
  --border: rgba(184, 179, 176, 0.14);
  --border-bright: rgba(184, 179, 176, 0.28);
  --radius-lg: 12px;
}

body {
  background:
    radial-gradient(70% 45% at 50% -10%, rgb(var(--accent-rgb) / 0.13), transparent 66%),
    var(--bg-base);
}

.nav {
  border-bottom: 1px solid transparent;
}

.nav.scrolled {
  background: rgba(5, 5, 7, 0.86);
  border-bottom-color: var(--border);
}

.logo-mark-img {
  filter: drop-shadow(0 0 8px rgb(var(--accent-rgb) / 0.38));
}

.hero-title {
  line-height: 0.94;
  letter-spacing: -0.065em;
}

/* Keep the headline readable immediately; surrounding elements carry motion. */
.motion-ready .hero-title .word {
  animation: none;
  opacity: 1;
  transform: none;
}

.home-main .hero-title {
  max-width: 15ch;
  font-size: clamp(3.25rem, 5.2vw, 5.4rem);
  line-height: .9;
  text-wrap: balance;
}

.home-main .hero-title .line + .line {
  margin-top: .08em;
}

.hero-title .line-grad,
.section-title em {
  background: linear-gradient(105deg, #f2f2f2 12%, var(--accent) 58%, #70f6ca 92%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.home-search,
.stack-card,
.stack-grid a,
.blueprint-card,
.card,
.toolbar {
  border-color: var(--border);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.035);
}

.card,
.blueprint-card,
.stack-card,
.stack-grid a {
  background: linear-gradient(145deg, rgba(20, 22, 24, 0.96), rgba(10, 11, 13, 0.96));
}

.card:hover,
.blueprint-card:hover,
.stack-grid a:hover {
  border-color: rgb(var(--accent-rgb) / 0.5);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgb(var(--accent-rgb) / 0.12);
}

.btn.primary,
.filter.active {
  box-shadow: 0 0 0 1px rgb(var(--accent-rgb) / 0.25), 0 10px 35px rgb(var(--accent-rgb) / 0.12);
}

.search {
  position: relative;
}

.search-clear {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: var(--bg-card-hi);
  color: var(--text-soft);
  cursor: pointer;
}

.search-clear:hover {
  color: var(--text);
  border-color: var(--border-bright);
}

.search-clear[hidden] {
  display: none;
}

.empty:not(.hidden) {
  display: grid;
  justify-items: start;
  gap: 0.65rem;
  padding: 1.25rem;
  border: 1px dashed var(--border-bright);
  border-radius: 12px;
  background: rgb(var(--accent-rgb) / 0.035);
}

.empty .btn { margin-top: 0.25rem; }

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--bg-card);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 1px;
  margin: 5px auto;
  background: var(--text);
  transition: transform var(--dur-fast) var(--ease);
}

.nav-toggle.is-open span:first-child { transform: translateY(3px) rotate(45deg); }
.nav-toggle.is-open span:last-child { transform: translateY(-3px) rotate(-45deg); }

@media (max-width: 820px) {
  .nav-toggle { display: block; margin-left: auto; }
  .nav-search { display: none; }
  .nav-menu {
    display: none;
    position: absolute;
    top: calc(100% + 1px);
    left: var(--gutter);
    right: var(--gutter);
    padding: 1rem;
    border: 1px solid var(--border-bright);
    border-radius: 12px;
    background: rgba(10, 11, 13, 0.98);
    box-shadow: 0 24px 70px rgba(0, 0, 0, 0.55);
  }
  .nav-menu.is-open { display: grid; }
  .nav-menu .nav-group { display: grid; gap: 0.25rem; }
  .nav-menu a { min-height: 44px; display: flex; align-items: center; }
}

.reduced-motion *,
.reduced-motion *::before,
.reduced-motion *::after {
  animation: none !important;
  scroll-behavior: auto !important;
  transition-duration: 0.01ms !important;
}

.reduced-motion .card,
.reduced-motion .toc a,
.gsap-fallback .card,
.gsap-fallback .toc a {
  opacity: 1 !important;
  transform: none !important;
}

.error-page {
  display: grid;
  align-content: center;
  justify-items: start;
  width: min(680px, calc(100% - 2rem));
  min-height: 100vh;
  margin: auto;
}

/* Agent integration hub */
.agent-hub { padding-top: 9rem; padding-bottom: 7rem; }
.agent-hero { max-width: 920px; padding: 4rem 0 5rem; }
.agent-hero h1 { margin: 1.5rem 0; font-size: clamp(2.8rem, 7vw, 6.5rem); line-height: .92; letter-spacing: -.065em; }
.agent-hero h1 em { color: var(--violet-400); font-style: normal; }
.agent-hero > p:not(.hero-pill) { max-width: 760px; color: var(--text-soft); font-size: clamp(1rem, 2vw, 1.3rem); }
.agent-status { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 2rem; }
.agent-status span { padding: .7rem 1rem; border: 1px solid var(--border); border-radius: 999px; background: var(--bg-card); color: var(--text-soft); }
.agent-status b { color: var(--text); }
.agent-section { margin-top: 2rem; padding: clamp(1.25rem, 3vw, 2.5rem); border: 1px solid var(--border); border-radius: 20px; background: rgba(12,14,18,.82); backdrop-filter: blur(16px); }
.section-head { display: flex; gap: 1rem; margin-bottom: 2rem; }
.section-head > span { color: var(--violet-400); font-family: var(--font-mono); }
.section-head h2 { margin: 0; font-size: clamp(1.5rem, 3vw, 2.4rem); }
.section-head p { margin: .4rem 0 0; color: var(--text-soft); }
.endpoint-grid,.tool-grid,.client-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 1rem; }
.endpoint-card,.tool-grid article,.client-card { border: 1px solid var(--border); border-radius: 14px; background: var(--bg-card); }
.endpoint-card { display: flex; align-items: center; gap: 1rem; padding: 1.1rem; transition: transform .25s var(--ease),border-color .25s; }
.endpoint-card:hover { transform: translateY(-3px); border-color: var(--violet-400); }
.endpoint-card code { color: var(--green-400, #65d9a5); font-size: .72rem; }
.endpoint-card div { flex: 1; display: grid; }
.endpoint-card small,.tool-grid p,.client-title p { color: var(--text-soft); }
.tool-grid article { padding: 1.25rem; }
.tool-grid article b { color: var(--violet-300); font-family: var(--font-mono); }
.client-card { padding: 1.25rem; min-width: 0; }
.client-wide { grid-column: 1/-1; }
.client-title { display: flex; align-items: center; gap: .8rem; margin-bottom: 1rem; }
.client-title > span { display: grid; place-items: center; width: 42px; height: 42px; border: 1px solid var(--border-bright); border-radius: 10px; color: var(--violet-300); font-family: var(--font-mono); }
.client-title h3,.client-title p { margin: 0; }
.code-wrap { position: relative; }
.code-wrap pre { overflow: auto; min-height: 82px; margin: 0; padding: 1.2rem; border-radius: 10px; background: #07080b; color: #dce2f0; font-size: .78rem; }
.code-wrap button { position: absolute; z-index: 1; top: .55rem; right: .55rem; padding: .35rem .65rem; border: 1px solid var(--border-bright); border-radius: 7px; background: #11141a; cursor: pointer; }
.security-note { display: flex; gap: 1rem; margin-top: 1rem; padding: 1rem; border: 1px solid rgba(255,190,80,.25); border-radius: 12px; background: rgba(255,190,80,.05); }
.security-note p { margin: 0; color: var(--text-soft); }
.advisor { border-color: rgb(var(--accent-rgb) / .32); background: radial-gradient(70% 100% at 0 0, rgb(var(--accent-rgb) / .09), transparent 65%), rgba(12,14,18,.9); }
.advisor-form { display: grid; gap: .8rem; }
.advisor-form label { font-weight: 650; }
.advisor-form textarea { width: 100%; min-height: 130px; resize: vertical; padding: 1rem; border: 1px solid var(--border-bright); border-radius: 12px; background: #080a0d; color: var(--text); font: inherit; line-height: 1.5; }
.advisor-form textarea:focus { border-color: var(--accent); outline: 2px solid rgb(var(--accent-rgb) / .15); }
.advisor-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 1rem; }
.advisor-actions span { color: var(--text-soft); font-size: .82rem; }
.advisor-result { margin-top: 1.5rem; }
.advisor-result h3 { margin: 0 0 1rem; }
.advisor-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: .75rem; }
.advisor-grid a { display: grid; gap: .35rem; padding: 1rem; border: 1px solid var(--border); border-radius: 12px; background: var(--bg-card); }
.advisor-grid a:hover { border-color: var(--accent); transform: translateY(-2px); }
.advisor-grid span { color: var(--accent); font: .68rem var(--font-mono); text-transform: uppercase; }
.advisor-grid small { color: var(--text-soft); }
@media (max-width: 720px) { .agent-hub { padding-top: 6rem; } .agent-hero { padding: 2rem 0 3rem; } .endpoint-grid,.tool-grid,.client-grid { grid-template-columns: 1fr; } .client-wide { grid-column: auto; } .security-note { display: block; } }

@media (max-width: 720px) {
  .home-main .hero-title { max-width: 12ch; font-size: clamp(3rem, 14vw, 4rem); }
  .advisor-grid { grid-template-columns: 1fr; }
}