/* ==========================================================================
   Nexus Projects — vibrant gradient design system
   ========================================================================== */
:root {
  --nx-bg: #0b0613;
  --nx-bg-soft: #140c20;
  --nx-surface: rgba(255, 255, 255, 0.04);
  --nx-surface-2: rgba(255, 255, 255, 0.06);
  --nx-border: rgba(255, 255, 255, 0.10);
  --nx-border-strong: rgba(255, 255, 255, 0.20);
  --nx-text: #f4f0fb;
  --nx-muted: #b7a9d0;
  --nx-faint: #8a7caa;

  --nx-pink: #ff4d8d;
  --nx-orange: #ff8a3d;
  --nx-violet: #8b5cff;
  --nx-cyan: #2fd9ff;

  --nx-grad: linear-gradient(100deg, #ff4d8d 0%, #ff8a3d 38%, #8b5cff 74%, #2fd9ff 100%);
  --nx-grad-soft: linear-gradient(100deg, rgba(255,77,141,.18), rgba(139,92,255,.18) 60%, rgba(47,217,255,.18));
  --nx-radius: 18px;
  --nx-radius-lg: 26px;
  --nx-shadow: 0 24px 60px -24px rgba(139, 92, 255, 0.55);
  --nx-shadow-pink: 0 24px 60px -20px rgba(255, 77, 141, 0.45);
}

* { box-sizing: border-box; }

html { font-size: 15px; position: relative; min-height: 100%; scroll-behavior: smooth; }
@media (min-width: 768px) { html { font-size: 16px; } }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--nx-text);
  font-family: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  background:
    radial-gradient(1100px 600px at 12% -8%, rgba(255, 77, 141, 0.20), transparent 60%),
    radial-gradient(1000px 620px at 92% 4%, rgba(47, 217, 255, 0.16), transparent 58%),
    radial-gradient(900px 700px at 50% 110%, rgba(139, 92, 255, 0.22), transparent 60%),
    var(--nx-bg);
  background-attachment: fixed;
}

/* ---- Typography ---------------------------------------------------------- */
h1, h2, h3, h4, h5, .fw-bold { letter-spacing: -0.02em; }
.display-1, .display-2, .display-3, .display-4, .display-5 { letter-spacing: -0.035em; font-weight: 800; }
a { color: var(--nx-cyan); text-decoration: none; }
a:hover { color: #9affff; }
.text-muted { color: var(--nx-muted) !important; }

.nx-gradient-text {
  background: var(--nx-grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.nx-eyebrow {
  display: inline-flex; align-items: center; gap: .5rem;
  font-size: .78rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
  color: var(--nx-text);
  padding: .4rem .9rem; border-radius: 999px;
  background: var(--nx-grad-soft);
  border: 1px solid var(--nx-border-strong);
}

/* ---- Buttons ------------------------------------------------------------- */
.btn { font-weight: 700; border-radius: 999px; letter-spacing: -0.01em; transition: transform .15s ease, box-shadow .2s ease, filter .2s ease; }
.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.22rem rgba(139, 92, 255, 0.45);
}
.btn-lg { padding: .8rem 1.8rem; font-size: 1.02rem; }

.btn-primary, .nx-btn-grad {
  border: none; color: #fff;
  background-image: var(--nx-grad);
  background-size: 180% 180%;
  box-shadow: var(--nx-shadow-pink);
}
.btn-primary:hover, .nx-btn-grad:hover { color: #fff; transform: translateY(-2px); filter: brightness(1.07); background-position: 100% 0; box-shadow: 0 28px 70px -20px rgba(255, 77, 141, 0.6); }
.btn-primary:active { transform: translateY(0); }

.btn-outline-secondary, .nx-btn-ghost {
  color: var(--nx-text); border: 1px solid var(--nx-border-strong);
  background: var(--nx-surface);
  backdrop-filter: blur(8px);
}
.btn-outline-secondary:hover, .nx-btn-ghost:hover { color: #fff; background: var(--nx-surface-2); border-color: var(--nx-border-strong); transform: translateY(-2px); }

.btn-link { color: var(--nx-cyan); }

/* ---- Nav ----------------------------------------------------------------- */
.navbar {
  background: rgba(11, 6, 19, 0.65) !important;
  backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid var(--nx-border) !important;
  box-shadow: none !important;
  position: sticky; top: 0; z-index: 1000;
}
.navbar-brand { font-weight: 800; font-size: 1.25rem; }
.navbar .nav-link { color: var(--nx-muted) !important; font-weight: 600; border-radius: 999px; padding: .35rem .85rem !important; transition: color .15s ease, background .15s ease; }
.navbar .nav-link:hover { color: #fff !important; background: var(--nx-surface); }
.navbar-toggler { border-color: var(--nx-border-strong); }
.navbar-toggler-icon { filter: invert(1) brightness(1.6); }

/* ---- Surfaces / cards ---------------------------------------------------- */
.card {
  background: var(--nx-surface);
  border: 1px solid var(--nx-border);
  border-radius: var(--nx-radius);
  color: var(--nx-text);
  backdrop-filter: blur(10px);
}
.bg-light { background: var(--nx-surface) !important; color: var(--nx-text) !important; }
.bg-white { background: var(--nx-surface) !important; }

.nx-card {
  position: relative;
  background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02));
  border: 1px solid var(--nx-border);
  border-radius: var(--nx-radius-lg);
  padding: 1.6rem;
  height: 100%;
  transition: transform .2s ease, border-color .2s ease, box-shadow .25s ease;
  overflow: hidden;
}
.nx-card:hover { transform: translateY(-6px); border-color: var(--nx-border-strong); box-shadow: var(--nx-shadow); }
.nx-card__icon {
  width: 46px; height: 46px; border-radius: 14px;
  display: grid; place-items: center; font-size: 1.4rem; margin-bottom: 1rem;
  background: var(--nx-grad-soft); border: 1px solid var(--nx-border-strong);
}

/* ---- Product showcase ---------------------------------------------------- */
.nx-product { position: relative; height: 100%; display: flex; flex-direction: column;
  background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02));
  border: 1px solid var(--nx-border); border-radius: var(--nx-radius-lg);
  padding: 1.9rem 1.7rem; overflow: hidden;
  transition: transform .2s ease, border-color .2s ease, box-shadow .25s ease; }
.nx-product::after { content: ""; position: absolute; inset: 0 0 auto 0; height: 4px; background: var(--nx-grad); }
.nx-product:hover { transform: translateY(-6px); border-color: var(--nx-border-strong); box-shadow: var(--nx-shadow); }
.nx-product__tag { display: inline-flex; align-self: flex-start; align-items: center; gap: .4rem;
  font-size: .72rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase;
  padding: .3rem .7rem; border-radius: 999px; background: var(--nx-grad-soft);
  border: 1px solid var(--nx-border-strong); color: var(--nx-text); margin-bottom: 1rem; }
.nx-product__icon { font-size: 2rem; margin-bottom: .6rem; }
.nx-product__name { font-size: 1.35rem; font-weight: 800; margin-bottom: .3rem; }
.nx-product__tagline { color: var(--nx-muted); font-weight: 600; margin-bottom: 1rem; }
.nx-product__feat { list-style: none; padding: 0; margin: 0 0 1.4rem; }
.nx-product__feat li { padding: .4rem 0 .4rem 1.7rem; position: relative; color: var(--nx-text);
  font-size: .94rem; border-top: 1px solid var(--nx-border); }
.nx-product__feat li:first-child { border-top: 0; }
.nx-product__feat li::before { content: "✦"; position: absolute; left: 0; color: var(--nx-pink); }
.nx-product__cta { margin-top: auto; }

/* ---- Hero ---------------------------------------------------------------- */
.nx-hero { padding: 5.5rem 0 3.5rem; position: relative; }
.nx-hero h1 { font-size: clamp(2.6rem, 6vw, 4.6rem); line-height: 1.02; font-weight: 850; }
.nx-hero .lead { font-size: clamp(1.05rem, 2.2vw, 1.35rem); color: var(--nx-muted); }

.nx-orb { position: absolute; border-radius: 50%; filter: blur(60px); opacity: .55; z-index: -1; animation: nxFloat 14s ease-in-out infinite; }
.nx-orb--1 { width: 360px; height: 360px; background: var(--nx-pink); top: -40px; left: -60px; }
.nx-orb--2 { width: 320px; height: 320px; background: var(--nx-cyan); top: 40px; right: -40px; animation-delay: -5s; }
.nx-orb--3 { width: 300px; height: 300px; background: var(--nx-violet); bottom: -80px; left: 40%; animation-delay: -9s; }
@keyframes nxFloat { 0%,100% { transform: translateY(0) translateX(0); } 50% { transform: translateY(-26px) translateX(18px); } }

/* ---- Pills / stats ------------------------------------------------------- */
.nx-stat { text-align: center; }
.nx-stat__num { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 850; }
.nx-stat__label { color: var(--nx-muted); font-size: .9rem; letter-spacing: .02em; }

.nx-chip { display:inline-flex; align-items:center; gap:.4rem; padding:.45rem .9rem; border-radius:999px; background: var(--nx-surface); border:1px solid var(--nx-border); color: var(--nx-muted); font-size:.85rem; font-weight:600; }

/* ---- Section helpers ----------------------------------------------------- */
.nx-section { padding: 4.5rem 0; }
.nx-section-head { max-width: 640px; margin: 0 auto 3rem; text-align: center; }
.nx-section-head h2 { font-size: clamp(1.9rem, 4vw, 2.8rem); font-weight: 800; }
.nx-divider { height: 1px; background: linear-gradient(90deg, transparent, var(--nx-border-strong), transparent); border: 0; margin: 0; }

/* ---- Pricing ------------------------------------------------------------- */
.nx-plan { cursor: pointer; display: block; height: 100%; }
.nx-plan input { position: absolute; opacity: 0; pointer-events: none; }
.nx-plan__card {
  position: relative; height: 100%;
  background: linear-gradient(180deg, rgba(255,255,255,0.05), rgba(255,255,255,0.015));
  border: 1.5px solid var(--nx-border);
  border-radius: var(--nx-radius-lg);
  padding: 1.7rem 1.5rem;
  transition: transform .18s ease, border-color .2s ease, box-shadow .25s ease, background .2s ease;
  overflow: hidden;
}
.nx-plan:hover .nx-plan__card { transform: translateY(-6px); border-color: var(--nx-border-strong); box-shadow: var(--nx-shadow); }
.nx-plan input:checked + .nx-plan__card {
  border-color: transparent;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.03)) padding-box,
    var(--nx-grad) border-box;
  box-shadow: var(--nx-shadow-pink);
}
.nx-plan input:checked + .nx-plan__card::before {
  content: "Selected"; position: absolute; top: .9rem; right: .9rem;
  font-size: .7rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase;
  padding: .25rem .6rem; border-radius: 999px; background: var(--nx-grad); color: #fff;
}
.nx-plan__name { font-size: 1.15rem; font-weight: 800; }
.nx-plan__price { font-size: 2.6rem; font-weight: 850; line-height: 1; margin: .4rem 0 .2rem; }
.nx-plan__price small { font-size: .9rem; color: var(--nx-muted); font-weight: 600; }
.nx-plan__feat { list-style: none; padding: 0; margin: 1.1rem 0 0; }
.nx-plan__feat li { padding: .35rem 0 .35rem 1.6rem; position: relative; color: var(--nx-text); border-top: 1px solid var(--nx-border); }
.nx-plan__feat li:first-child { border-top: 0; }
.nx-plan__feat li::before { content: "✦"; position: absolute; left: 0; color: var(--nx-pink); }
.nx-badge-popular { position: absolute; top: -1px; left: 50%; transform: translateX(-50%); background: var(--nx-grad); color: #fff; font-size: .68rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; padding: .25rem .9rem; border-radius: 0 0 12px 12px; }

/* Add-ons */
.nx-addon { cursor: pointer; display: block; height: 100%; }
.nx-addon input { position: absolute; opacity: 0; pointer-events: none; }
.nx-addon__card { height: 100%; border: 1.5px solid var(--nx-border); border-radius: var(--nx-radius); padding: 1.1rem 1.2rem; transition: border-color .2s ease, background .2s ease, transform .18s ease; background: var(--nx-surface); }
.nx-addon:hover .nx-addon__card { transform: translateY(-3px); border-color: var(--nx-border-strong); }
.nx-addon input:checked + .nx-addon__card { border-color: var(--nx-cyan); background: rgba(47, 217, 255, 0.08); box-shadow: 0 0 0 1px rgba(47,217,255,.4) inset; }
.nx-addon__check { width: 22px; height: 22px; border-radius: 7px; border: 1.5px solid var(--nx-border-strong); display: grid; place-items: center; flex: none; transition: background .15s ease, border-color .15s ease; }
.nx-addon input:checked + .nx-addon__card .nx-addon__check { background: var(--nx-cyan); border-color: var(--nx-cyan); color: #04222b; }

/* ---- Forms --------------------------------------------------------------- */
.form-control, .form-select {
  background: var(--nx-surface); border: 1px solid var(--nx-border); color: var(--nx-text);
  border-radius: 12px; padding: .6rem .85rem;
}
.form-control:focus, .form-select:focus { background: var(--nx-surface-2); border-color: var(--nx-violet); color: var(--nx-text); }
.form-control::placeholder { color: var(--nx-faint); }
.form-label { color: var(--nx-muted); font-weight: 600; font-size: .9rem; }
.form-check-input { background: var(--nx-surface); border-color: var(--nx-border-strong); }
.form-check-input:checked { background-color: var(--nx-violet); border-color: var(--nx-violet); }

.nx-auth-card {
  background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02));
  border: 1px solid var(--nx-border); border-radius: var(--nx-radius-lg);
  padding: 2.2rem; box-shadow: var(--nx-shadow);
}

/* ---- Alerts -------------------------------------------------------------- */
.alert { border-radius: 14px; border: 1px solid var(--nx-border-strong); }
.alert-info { background: rgba(47, 217, 255, 0.10); color: #c9f6ff; }
.alert-secondary { background: var(--nx-surface); color: var(--nx-text); }
.alert-warning { background: rgba(255, 138, 61, 0.12); color: #ffd9bd; }
.alert-success { background: rgba(120, 230, 160, 0.12); color: #d2ffe3; }
.alert-danger { background: rgba(255, 77, 141, 0.12); color: #ffd0e0; }

/* ---- Tables (dashboard/admin inherit) ------------------------------------ */
.table { color: var(--nx-text); }
.table > :not(caption) > * > * { border-color: var(--nx-border); }
.table thead th { color: var(--nx-muted); text-transform: uppercase; font-size: .76rem; letter-spacing: .06em; }

/* ---- Footer -------------------------------------------------------------- */
.footer { background: transparent; border-top: 1px solid var(--nx-border) !important; color: var(--nx-muted); }
.footer a { color: var(--nx-muted); }
.footer a:hover { color: #fff; }

/* ---- Logo strip ---------------------------------------------------------- */
.nx-marquee { display: flex; flex-wrap: wrap; gap: 1.4rem 2.4rem; justify-content: center; align-items: center; opacity: .8; }
.nx-marquee span { color: var(--nx-muted); font-weight: 700; letter-spacing: .02em; }

@media (max-width: 575.98px) {
  .nx-hero { padding: 3.5rem 0 2.5rem; }
  .nx-section { padding: 3rem 0; }
}