/* ============================================================
   NEXORA — Where Design Meets Intelligence
   Premium dark · minimal · elegant
   ============================================================ */

:root {
  --bg: #0a0a0c;
  --bg-alt: #0e0e12;
  --surface: #121218;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text: #f4f4f6;
  --text-muted: #9a9aa6;
  --text-faint: #6b6b78;
  --accent: #7dd3c8; /* soft teal */
  --accent-dim: rgba(125, 211, 200, 0.12);
  --font-display: "Space Grotesk", sans-serif;
  --font-body: "Inter", sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: var(--accent); color: var(--bg); }

.container {
  width: min(1140px, 100% - 3rem);
  margin-inline: auto;
}

/* ---------- Typography helpers ---------- */
.eyebrow {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.section__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 1rem;
}

.section__title--xl {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
}

.section__lead {
  max-width: 40rem;
  font-size: 1.08rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.section__note {
  font-size: 0.85rem;
  color: var(--text-faint);
  margin-bottom: 2.5rem;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: 0.86rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  padding: 0.85rem 1.9rem;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.35s var(--ease);
}

.btn--sm { padding: 0.6rem 1.35rem; font-size: 0.8rem; }

.btn--primary {
  background: var(--text);
  color: var(--bg);
}
.btn--primary:hover {
  background: var(--accent);
  transform: translateY(-2px);
}

.btn--ghost {
  border-color: var(--border-strong);
  color: var(--text);
  background: transparent;
  gap: 0.4rem;
  padding: 0.75rem 1.75rem;
}
.btn--ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

.btn:focus-visible, a:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(10, 10, 12, 0.65);
  border-bottom: 1px solid transparent;
  transition: border-color 0.4s, background 0.4s;
}

.nav--scrolled {
  border-bottom-color: var(--border);
  background: rgba(10, 10, 12, 0.85);
}

.nav__inner {
  width: min(1140px, 100% - 3rem);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav__logo {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  color: var(--text);
  text-decoration: none;
}

.nav__logo img {
    display: block;
    width: 46px;
    height: 46px;
    object-fit: contain;
}

.nav__logo-dot { color: var(--accent); }

.nav__links {
  display: flex;
  gap: 2.2rem;
}

.nav__link {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-decoration: none;
  letter-spacing: 0.04em;
  transition: color 0.3s;
  position: relative;
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0; bottom: -6px;
  width: 0; height: 1px;
  background: var(--accent);
  transition: width 0.35s var(--ease);
}
.nav__link:hover { color: var(--text); }
.nav__link:hover::after { width: 100%; }

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav__toggle span {
  display: block;
  width: 22px; height: 1.5px;
  background: var(--text);
  transition: transform 0.35s var(--ease), opacity 0.3s;
}
.nav__toggle[aria-expanded="true"] span:first-child { transform: translateY(3.75px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:last-child { transform: translateY(-3.75px) rotate(-45deg); }

.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0 1.5rem;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.45s var(--ease), padding 0.45s var(--ease);
}
.mobile-menu--open { max-height: 420px; padding: 0.5rem 1.5rem 1.75rem; }
.mobile-menu__link {
  color: var(--text-muted);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 1.05rem;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--border);
  transition: color 0.3s;
}
.mobile-menu__link:hover { color: var(--text); }
.mobile-menu__cta { margin-top: 1rem; align-self: flex-start; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: 9rem 0 6rem;
  overflow: hidden;
}

.hero__content { position: relative; z-index: 2; max-width: 52rem; }

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 6.25rem);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1.02;
  margin-bottom: 1.75rem;
}

.hero__sub {
  max-width: 36rem;
  font-size: 1.06rem;
  color: var(--text-muted);
  margin-bottom: 2.75rem;
}

.hero__actions { display: flex; flex-wrap: wrap; gap: 1rem; }

/* Abstract CSS-only visual */
.hero__visual {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.5;
}
.orb--1 {
  width: 520px; height: 520px;
  top: -10%; right: -8%;
  background: radial-gradient(circle, rgba(125, 211, 200, 0.16), transparent 65%);
  animation: drift 18s ease-in-out infinite alternate;
}
.orb--2 {
  width: 420px; height: 420px;
  bottom: -15%; left: -10%;
  background: radial-gradient(circle, rgba(160, 150, 220, 0.1), transparent 65%);
  animation: drift 22s ease-in-out infinite alternate-reverse;
}

.ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
}
.ring--1 {
  width: 560px; height: 560px;
  top: 12%; right: 6%;
  animation: spin 60s linear infinite;
}
.ring--1::before {
  content: "";
  position: absolute;
  top: -4px; left: 50%;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 18px 4px rgba(125, 211, 200, 0.55);
}
.ring--2 {
  width: 380px; height: 380px;
  top: 26%; right: 16%;
  border-style: dashed;
  opacity: 0.5;
  animation: spin 90s linear infinite reverse;
}

.grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 88px 88px;
  mask-image: radial-gradient(ellipse 70% 60% at 60% 40%, black, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 60% 40%, black, transparent 75%);
  opacity: 0.35;
}

@keyframes drift {
  from { transform: translate(0, 0) scale(1); }
  to { transform: translate(-40px, 40px) scale(1.08); }
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Sections ---------- */
.section { padding: 8rem 0; position: relative; }
.section--alt { background: var(--bg-alt); border-block: 1px solid var(--border); }

/* ---------- Services ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
  margin-top: 3.5rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 2.25rem 1.9rem;
  transition: transform 0.45s var(--ease), border-color 0.45s var(--ease);
}
.card:hover {
  transform: translateY(-6px);
  border-color: var(--border-strong);
}

.card__num {
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  display: block;
  margin-bottom: 3.5rem;
}

.card__title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  margin-bottom: 0.6rem;
}

.card__text { font-size: 0.92rem; color: var(--text-muted); }

/* ---------- Work ---------- */
.work-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.work-card {
  display: block;
  color: inherit;
  text-decoration: none;
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  background: var(--surface);
  transition: transform 0.45s var(--ease), border-color 0.45s var(--ease);
}
.work-card:hover { transform: translateY(-6px); border-color: var(--border-strong); }

.work-card__visual {
  height: 220px;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}
.work-card__visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.work-card__visual--1 {
  background:
    linear-gradient(180deg, rgba(0,0,0,0) 55%, rgba(0,0,0,0.45) 100%),
    url("/__l5e/assets-v1/05f13b11-62e6-4d05-afbc-ff7188ccd2ef/aegion-dynamic.jpg") center / cover no-repeat,
    var(--bg-alt);
}
.work-card__visual--2 {
  background:
    linear-gradient(180deg, rgba(0,0,0,0) 55%, rgba(0,0,0,0.45) 100%),
    url("/__l5e/assets-v1/7f053839-8bf9-42f0-9fff-751b903a061b/stakeplot.jpg") center / cover no-repeat,
    var(--bg-alt);
}
.work-card__visual--3 {
  background:
    linear-gradient(180deg, rgba(0,0,0,0) 55%, rgba(0,0,0,0.45) 100%),
    url("/__l5e/assets-v1/ba7143c0-1e9b-4078-8635-6095fce92ed2/client-portfolio.jpg") center / cover no-repeat,
    var(--bg-alt);
}
.work-card__visual--4 {
  background:
    linear-gradient(180deg, rgba(0,0,0,0) 55%, rgba(0,0,0,0.45) 100%),
    url("/__l5e/assets-v1/af725679-978e-41ef-8d14-38a08821d7fb/hackathon-presence.jpg") center / cover no-repeat,
    var(--bg-alt);
}

.work-card__body { padding: 1.6rem 1.6rem 1.8rem; }

.work-card__tag {
  display: inline-block;
  font-size: 0.68rem;
  font-family: var(--font-display);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}

.work-card__name {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  margin-bottom: 0.35rem;
}

.work-card__desc { font-size: 0.9rem; color: var(--text-muted); }

/* ---------- Work: See More ---------- */
.work-actions {
  display: flex;
  justify-content: center;
  margin-top: 2.75rem;
}

.see-more {
  position: relative;
  background: none;
  border: none;
  padding: 0.6rem 0.25rem;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: color 0.35s var(--ease);
}
.see-more::after {
  content: "";
  position: absolute;
  left: 0.25rem;
  right: 0.25rem;
  bottom: 0.2rem;
  height: 1px;
  background: var(--border-strong);
  transform: scaleX(0.4);
  transform-origin: center;
  transition: transform 0.4s var(--ease), background 0.4s var(--ease);
}
.see-more:hover { color: var(--accent); }
.see-more:hover::after { transform: scaleX(1); background: var(--accent); }

/* Collapsed extra row */
.work-grid--more {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  margin-top: 0;
  transition: max-height 0.6s var(--ease), opacity 0.5s var(--ease),
              margin-top 0.5s var(--ease);
}
.work-grid--more.is-open {
  max-height: 1200px;
  opacity: 1;
  margin-top: 1.5rem;
}

/* ---------- Process ---------- */
.process-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin-top: 3.5rem;
  counter-reset: step;
}

.process-item {
  border-top: 1px solid var(--border-strong);
  padding-top: 1.75rem;
  transition: border-color 0.4s;
}
.process-item:hover { border-top-color: var(--accent); }

.process-item__num {
  font-family: var(--font-display);
  font-size: 0.78rem;
  letter-spacing: 0.24em;
  color: var(--accent);
  display: block;
  margin-bottom: 1.1rem;
}

.process-item__title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 500;
  margin-bottom: 0.45rem;
}

.process-item__text { font-size: 0.92rem; color: var(--text-muted); }

/* ---------- About / Founders ---------- */
.founders-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 1.75rem;
  margin-top: 3rem;
}

.founder-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 2.5rem 2.25rem;
  transition: transform 0.45s var(--ease), border-color 0.45s var(--ease);
}
.founder-card:hover { transform: translateY(-6px); border-color: var(--border-strong); }

.founder-card__avatar {
  width: 120px; height: 120px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  margin-bottom: 1.6rem;
  background: radial-gradient(circle at 30% 30%, var(--accent-dim), transparent 70%), var(--bg-alt);
  border: 1px solid var(--border-strong);
  overflow: hidden;
}
.founder-card__avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.founder-card__avatar span {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--accent);
}
.founder-card__avatar--alt span { color: var(--text); }

.founder-card__name {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 500;
  margin-bottom: 0.25rem;
}

.founder-card__role {
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

.founder-card__desc { font-size: 0.93rem; color: var(--text-muted); }
.founder-card > .btn { margin-top: 1rem; }


/* ---------- Contact ---------- */
.contact { text-align: center; }
.contact .section__lead { margin-inline: auto; margin-bottom: 2.5rem; }
.contact .eyebrow { text-align: center; }

.contact__links {
  margin-top: 3.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1.25rem;
}

.contact__link {
  font-family: var(--font-display);
  font-size: 0.95rem;
  color: var(--text-muted);
  text-decoration: none;
  letter-spacing: 0.04em;
  border-bottom: 1px solid var(--border-strong);
  padding-bottom: 2px;
  transition: color 0.3s, border-color 0.3s;
}
.contact__link:hover { color: var(--accent); border-color: var(--accent); }

.contact__divider {
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--text-faint);
}

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--border);
  padding: 3.5rem 0;
}

.footer__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  align-items: flex-end;
  justify-content: space-between;
}

.footer__logo {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.22em;
}

.footer__tagline { font-size: 0.85rem; color: var(--text-muted); margin-top: 0.35rem; }
.footer__copy { font-size: 0.8rem; color: var(--text-faint); }

/* ---------- Reveal animations ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}
.reveal--d1 { transition-delay: 0.1s; }
.reveal--d2 { transition-delay: 0.2s; }
.reveal--d3 { transition-delay: 0.3s; }
.reveal--d4 { transition-delay: 0.4s; }
.reveal--visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .orb, .ring { animation: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .nav__links, .nav__cta { display: none; }
  .nav__toggle { display: flex; }
  .mobile-menu { display: flex; }
  .section { padding: 5.5rem 0; }
  .hero { padding-top: 8rem; }
  .card__num { margin-bottom: 2.25rem; }
}