/* RobotMarketplaces.com — design system */

:root {
  --navy-900: #050a3d;
  --navy-800: #0a1157;
  --navy-700: #101a72;
  --teal-500: #12b5bd;
  --teal-400: #22d3db;
  --teal-300: #7ee8ed;
  --teal-050: #e6fbfc;
  --green-500: #16a34a;
  --green-400: #22c55e;

  --ink-900: #0b1020;
  --ink-700: #333a52;
  --ink-500: #5c6480;
  --ink-300: #9aa2bb;

  --surface: #ffffff;
  --surface-alt: #f6f7f9;
  --surface-sunken: #eef0f4;
  --line: #e3e6ee;

  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;

  --shadow-sm: 0 1px 2px rgba(11, 16, 32, .06), 0 1px 3px rgba(11, 16, 32, .04);
  --shadow-md: 0 4px 12px rgba(11, 16, 32, .07), 0 12px 28px rgba(11, 16, 32, .06);
  --shadow-lg: 0 18px 48px rgba(5, 10, 61, .16);

  --maxw: 1240px;
  --nav-h: 68px;

  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-display: "Sora", var(--font-sans);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--ink-900);
  background: var(--surface);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0 0 .5em;
}

h1 { font-size: clamp(2.4rem, 5.2vw, 4.1rem); }
h2 { font-size: clamp(1.85rem, 3.4vw, 2.7rem); }
h3 { font-size: 1.15rem; }

p { margin: 0 0 1em; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

.section { padding: 92px 0; }
.section--alt { background: var(--surface-alt); }

.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-head p { color: var(--ink-500); font-size: 1.08rem; margin: 0; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .78rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase;
  color: var(--teal-500); background: var(--teal-050);
  border: 1px solid rgba(18,181,189,.28);
  padding: 6px 14px; border-radius: 999px; margin-bottom: 18px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  font-family: var(--font-sans); font-weight: 600; font-size: .95rem;
  padding: 13px 24px; border-radius: 10px; border: 1px solid transparent;
  cursor: pointer; transition: transform .15s ease, box-shadow .15s ease, background .15s ease, color .15s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn:focus-visible { outline: 3px solid var(--teal-300); outline-offset: 2px; }
.btn:disabled { opacity: .45; cursor: not-allowed; transform: none; box-shadow: none; }

.btn--primary { background: var(--teal-500); color: #fff; box-shadow: 0 6px 18px rgba(18,181,189,.32); }
.btn--primary:hover { background: #0fa3aa; }
.btn--ghost { background: rgba(255,255,255,.10); color: #fff; border-color: rgba(255,255,255,.55); backdrop-filter: blur(6px); }
.btn--ghost:hover { background: rgba(255,255,255,.20); }
.btn--light { background: #fff; color: var(--navy-900); }
.btn--light:hover { background: #f0f2f7; }
.btn--outline { background: transparent; color: #fff; border-color: rgba(255,255,255,.6); }
.btn--outline:hover { background: rgba(255,255,255,.12); }
.btn--dark { background: var(--navy-800); color: #fff; }
.btn--dark:hover { background: var(--navy-700); }
.btn--sm { padding: 9px 16px; font-size: .86rem; }
.btn--block { width: 100%; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 60;
  background: rgba(255,255,255,.88);
  backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav {
  height: var(--nav-h);
  display: flex; align-items: center; gap: 28px;
  max-width: var(--maxw); margin: 0 auto; padding: 0 24px;
}
.brand { display: flex; align-items: center; gap: 11px; font-family: var(--font-display); font-weight: 700; font-size: 1.12rem; letter-spacing: -.02em; }
.brand__mark {
  width: 32px; height: 32px; border-radius: 9px; flex: none;
  background: linear-gradient(145deg, var(--navy-700), var(--navy-900));
  color: #fff; display: grid; place-items: center;
  font-size: .72rem; font-weight: 700; letter-spacing: .02em;
  box-shadow: 0 2px 8px rgba(5,10,61,.35);
}
.nav__links { display: flex; align-items: center; gap: 26px; margin: 0 auto; }
.nav__links a { font-size: .93rem; font-weight: 600; color: var(--ink-900); position: relative; padding: 4px 0; }
.nav__links a:hover { color: var(--teal-500); }
.nav__links a.is-active { color: var(--green-500); }
.nav__actions { display: flex; align-items: center; gap: 16px; }
.icon-btn {
  display: inline-flex; align-items: center; gap: 7px; font-size: .88rem; font-weight: 500;
  color: var(--ink-700); background: none; border: 0; cursor: pointer; padding: 6px;
  border-radius: 8px;
}
.icon-btn:hover { color: var(--teal-500); background: var(--surface-alt); }
.nav__toggle { display: none; }

@media (max-width: 940px) {
  .nav__links { display: none; }
  .nav__toggle { display: inline-flex; }
}
@media (max-width: 620px) {
  .nav { gap: 10px; padding: 0 16px; }
  .nav__actions { gap: 4px; margin-left: auto; }
  .nav-label { display: none; }
  .brand { font-size: .98rem; }
  .wrap { padding: 0 16px; }
  .section { padding: 64px 0; }
}
.nav__drawer { display: block; border-bottom: 1px solid var(--line); background: #fff; padding: 12px 24px 20px; }
.nav__drawer[hidden] { display: none; }
@media (min-width: 941px) { .nav__drawer { display: none !important; } }
.nav__drawer a { display: block; padding: 11px 0; font-weight: 600; border-bottom: 1px solid var(--line); }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  min-height: 640px; display: grid; place-items: center;
  background: radial-gradient(120% 90% at 70% 20%, #16306b 0%, #0a1157 45%, #050a3d 100%);
  color: #fff; text-align: center;
  padding: 96px 0 104px;
}
.hero__art { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .85; }
.hero__scrim { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(5,10,61,.55) 0%, rgba(5,10,61,.35) 45%, rgba(5,10,61,.72) 100%); }
.hero__inner { position: relative; max-width: 820px; padding: 0 24px; }
.hero h1 { margin-bottom: .35em; text-shadow: 0 2px 24px rgba(0,0,0,.35); }
.hero h1 span { display: block; color: var(--teal-400); }
.hero__sub { font-size: clamp(1rem, 1.5vw, 1.18rem); color: rgba(255,255,255,.9); max-width: 640px; margin: 0 auto 34px; }
.hero__cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.hero .eyebrow { background: rgba(18,181,189,.18); border-color: rgba(126,232,237,.4); color: var(--teal-300); }

.hero-stats { display: flex; gap: 42px; justify-content: center; flex-wrap: wrap; margin-top: 52px; }
.hero-stats div { text-align: center; }
.hero-stats b { display: block; font-family: var(--font-display); font-size: 1.7rem; color: #fff; }
.hero-stats span { font-size: .82rem; letter-spacing: .06em; text-transform: uppercase; color: rgba(255,255,255,.65); }

/* ---------- Feature cards ---------- */
.grid { display: grid; gap: 24px; }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 1040px) { .grid--4 { grid-template-columns: repeat(2, 1fr); } .grid--3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 700px) { .grid--4, .grid--3, .grid--2 { grid-template-columns: 1fr; } }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow-sm); transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: rgba(18,181,189,.4); }

.feature { padding: 34px 26px; text-align: center; }
.feature__icon {
  width: 52px; height: 52px; margin: 0 auto 18px; border-radius: 14px;
  background: var(--teal-050); color: var(--teal-500);
  display: grid; place-items: center;
}
.feature h3 { margin-bottom: .4em; font-size: 1.06rem; }
.feature p { color: var(--ink-500); font-size: .93rem; margin: 0; }

/* ---------- Category cards ---------- */
.cat { overflow: hidden; display: flex; flex-direction: column; }
.cat__art { aspect-ratio: 16 / 10; background: var(--surface-sunken); position: relative; }
.cat__art svg { width: 100%; height: 100%; display: block; }
.cat__body { padding: 20px 22px 24px; }
.cat__title { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 6px; }
.cat__title h3 { margin: 0; font-size: 1.02rem; }
.cat__title .arrow { color: var(--teal-500); flex: none; transition: transform .2s ease; }
.cat:hover .arrow { transform: translateX(4px); }
.cat p { color: var(--ink-500); font-size: .89rem; margin: 0; }

/* ---------- Product cards ---------- */
.product { overflow: hidden; display: flex; flex-direction: column; }
.product__art { aspect-ratio: 4 / 3; position: relative; background: var(--surface-sunken); }
.product__art svg { width: 100%; height: 100%; }
.badge {
  position: absolute; top: 12px; left: 12px; z-index: 2;
  background: var(--teal-500); color: #fff;
  font-size: .68rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  padding: 5px 10px; border-radius: 999px;
}
.rating {
  position: absolute; top: 12px; right: 12px; z-index: 2;
  background: rgba(255,255,255,.94); color: var(--ink-900);
  font-size: .76rem; font-weight: 700;
  padding: 5px 9px; border-radius: 999px; display: inline-flex; align-items: center; gap: 4px;
  box-shadow: var(--shadow-sm);
}
.rating svg { color: #f5a524; }
.product__body { padding: 18px 20px 22px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.product__cat { font-size: .74rem; font-weight: 600; letter-spacing: .07em; text-transform: uppercase; color: var(--ink-300); }
.product__body h3 { margin: 0; font-size: 1.02rem; }
.product__blurb { font-size: .87rem; color: var(--ink-500); margin: 0; flex: 1; }
.product__foot { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 6px; }
.price { font-family: var(--font-display); font-weight: 700; font-size: 1.22rem; }
.price small { font-weight: 500; font-size: .74rem; color: var(--ink-300); display: block; letter-spacing: .04em; }

/* ---------- Trends ---------- */
.trend { padding: 30px 28px; }
.trend__icon { width: 46px; height: 46px; border-radius: 12px; background: var(--navy-900); color: var(--teal-400); display: grid; place-items: center; margin-bottom: 16px; }
.trend p { color: var(--ink-500); font-size: .93rem; margin: 0; }

/* ---------- CTA band ---------- */
.cta-band {
  background: radial-gradient(90% 140% at 50% 0%, var(--navy-700) 0%, var(--navy-900) 70%);
  color: #fff; text-align: center; padding: 88px 0;
}
.cta-band p { color: rgba(255,255,255,.78); max-width: 560px; margin: 0 auto 30px; }
.cta-band__btns { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ---------- Footer ---------- */
.site-footer { background: var(--surface-alt); border-top: 1px solid var(--line); padding: 62px 0 34px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; }
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }
.site-footer h4 { font-family: var(--font-display); font-size: .95rem; margin: 0 0 16px; }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 11px; }
.site-footer a { font-size: .9rem; color: var(--ink-500); }
.site-footer a:hover { color: var(--teal-500); }
.footer-about p { font-size: .9rem; color: var(--ink-500); margin: 16px 0 0; max-width: 290px; }
.footer-bottom { margin-top: 44px; padding-top: 24px; border-top: 1px solid var(--line); text-align: center; font-size: .85rem; color: var(--ink-300); }

/* ---------- Page header (interior pages) ---------- */
.page-head {
  background: radial-gradient(100% 160% at 20% 0%, var(--navy-700) 0%, var(--navy-900) 65%);
  color: #fff; padding: 74px 0 66px;
}
.page-head h1 { font-size: clamp(2rem, 4vw, 3rem); margin-bottom: .3em; }
.page-head p { color: rgba(255,255,255,.78); max-width: 620px; margin: 0; font-size: 1.05rem; }
.crumbs { font-size: .84rem; color: rgba(255,255,255,.55); margin-bottom: 16px; }
.crumbs a:hover { color: var(--teal-300); }

/* ---------- Filters / forms ---------- */
.toolbar {
  display: flex; gap: 14px; flex-wrap: wrap; align-items: center;
  padding: 20px; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow-sm); margin-bottom: 34px;
}
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: .8rem; font-weight: 600; color: var(--ink-700); }
input[type="text"], input[type="email"], input[type="search"], select, textarea {
  font-family: var(--font-sans); font-size: .93rem; color: var(--ink-900);
  padding: 11px 14px; border: 1px solid var(--line); border-radius: 10px; background: #fff;
  min-width: 200px; transition: border-color .15s ease, box-shadow .15s ease;
}
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--teal-500); box-shadow: 0 0 0 3px rgba(18,181,189,.16);
}
.search-field { position: relative; flex: 1; min-width: 240px; }
.search-field input { width: 100%; padding-left: 40px; }
.search-field svg { position: absolute; left: 13px; top: 50%; transform: translateY(-50%); color: var(--ink-300); }

.chips { display: flex; gap: 8px; flex-wrap: wrap; }
.chip {
  font-size: .84rem; font-weight: 600; padding: 8px 15px; border-radius: 999px;
  border: 1px solid var(--line); background: #fff; color: var(--ink-700); cursor: pointer;
  transition: all .15s ease;
}
.chip:hover { border-color: var(--teal-500); color: var(--teal-500); }
.chip.is-active { background: var(--navy-900); border-color: var(--navy-900); color: #fff; }

.result-count { font-size: .9rem; color: var(--ink-500); margin-bottom: 20px; }
.empty { text-align: center; padding: 70px 20px; color: var(--ink-500); }

.form-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow-md); padding: 36px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 700px) { .form-grid { grid-template-columns: 1fr; } .form-card { padding: 24px; } }
.form-grid .full { grid-column: 1 / -1; }
.field input, .field select, .field textarea { min-width: 0; width: 100%; }
.hint { font-size: .8rem; color: var(--ink-300); }
.checkline { display: flex; gap: 10px; align-items: flex-start; font-size: .88rem; color: var(--ink-700); }
.checkline input { min-width: 0; width: auto; margin-top: 3px; accent-color: var(--teal-500); }

.notice {
  border-radius: var(--radius); padding: 16px 18px; font-size: .9rem;
  border: 1px solid rgba(18,181,189,.35); background: var(--teal-050); color: #0b6a70;
}
.notice--ok { border-color: rgba(22,163,74,.3); background: #eafaf0; color: #14603a; }
.hidden { display: none !important; }

/* ---------- Prose ---------- */
.prose { max-width: 760px; }
.prose h2 { margin-top: 1.8em; font-size: 1.5rem; }
.prose h3 { margin-top: 1.4em; }
.prose p, .prose li { color: var(--ink-700); }
.prose ul { padding-left: 20px; display: grid; gap: 8px; }

.split { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; }
@media (max-width: 900px) { .split { grid-template-columns: 1fr; gap: 32px; } }

.stat-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
@media (max-width: 760px) { .stat-row { grid-template-columns: repeat(2, 1fr); } }
.stat { padding: 24px; text-align: center; }
.stat b { display: block; font-family: var(--font-display); font-size: 1.9rem; color: var(--navy-900); }
.stat span { font-size: .84rem; color: var(--ink-500); }

.list-card { padding: 26px 28px; }
.list-card h3 { margin-bottom: .35em; }
.list-card p { color: var(--ink-500); font-size: .92rem; margin: 0 0 14px; }
.tag { display: inline-block; font-size: .72rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--teal-500); background: var(--teal-050); padding: 4px 10px; border-radius: 999px; margin-bottom: 12px; }

.skip-link {
  position: absolute; left: -9999px; top: 0; background: var(--navy-900); color: #fff;
  padding: 10px 16px; z-index: 100; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; }
  html { scroll-behavior: auto; }
}

/* ---------- social sign-in ---------- */
.social-block {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md); padding: 30px 32px; margin-bottom: 34px;
}
@media (max-width: 700px) { .social-block { padding: 22px 20px; } }

.social-buttons { display: flex; gap: 12px; flex-wrap: wrap; }
@media (max-width: 560px) { .social-buttons { flex-direction: column; } }

.btn--social {
  background: #fff; color: var(--ink-900);
  border: 1px solid rgba(11, 16, 32, .22);
  font-weight: 700;
}
.btn--social:hover { background: var(--surface-alt); border-color: rgba(11, 16, 32, .38); }
.btn--social svg { flex: none; }

.or-rule {
  display: flex; align-items: center; gap: 14px;
  margin: 26px 0; color: var(--ink-300);
  font-size: .82rem; font-weight: 600; letter-spacing: .04em; text-transform: uppercase;
}
.or-rule::before, .or-rule::after {
  content: ""; flex: 1; height: 1px; background: var(--line);
}