/* ============================================================================
   NEXUS HUD — Sales Mode stylesheet
   Specifica: CLAUDE.md §6
   ============================================================================ */

:root {
  /* Backgrounds */
  --nx-bg-base: #05081A;
  --nx-bg-elev-1: rgba(255,255,255,0.02);
  --nx-bg-elev-2: rgba(255,255,255,0.04);
  --nx-bg-overlay: rgba(5,8,26,0.85);

  /* Borders */
  --nx-border-subtle: rgba(255,255,255,0.08);
  --nx-border-default: rgba(255,255,255,0.12);
  --nx-border-accent: rgba(103,232,249,0.5);

  /* Text */
  --nx-text-primary: #F9FAFB;
  --nx-text-secondary: #D1D5DB;
  --nx-text-muted: #9CA3AF;
  --nx-text-faded: #6B7280;
  --nx-text-whisper: #4B5563;

  /* Accent */
  --nx-accent: #67E8F9;
  --nx-accent-glow: 0 0 8px #67E8F9;

  /* Category accents */
  --nx-cat-blue: #A5B4FC;
  --nx-cat-cyan: #67E8F9;
  --nx-cat-purple: #D8B4FE;
  --nx-cat-pink: #F9A8D4;
  --nx-cat-amber: #FDBA74;
  --nx-cat-green: #86EFAC;

  /* Radii */
  --nx-r-sm: 6px;
  --nx-r-md: 10px;
  --nx-r-lg: 14px;

  /* Fonts */
  --nx-font-sans: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --nx-font-mono: 'JetBrains Mono', 'Fira Code', ui-monospace, SFMono-Regular, monospace;

  /* Gradients */
  --nx-grad-primary: linear-gradient(90deg, #6366F1, #22D3EE);
  --nx-grad-hero: linear-gradient(90deg, #A5B4FC, #67E8F9, #D8B4FE);
  --nx-grad-featured: linear-gradient(90deg, rgba(99,102,241,0.3), rgba(34,211,238,0.3));
}

.cat-blue   { --cat: var(--nx-cat-blue); }
.cat-cyan   { --cat: var(--nx-cat-cyan); }
.cat-purple { --cat: var(--nx-cat-purple); }
.cat-pink   { --cat: var(--nx-cat-pink); }
.cat-amber  { --cat: var(--nx-cat-amber); }
.cat-green  { --cat: var(--nx-cat-green); }

/* ───────── Reset ───────── */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--nx-font-sans);
  background: var(--nx-bg-base);
  color: var(--nx-text-primary);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, select, textarea { font-family: inherit; }

h1, h2, h3, h4 { margin: 0; font-weight: 500; letter-spacing: -0.5px; }

/* ───────── Ambient backgrounds ───────── */
.bg-layer { position: fixed; inset: 0; pointer-events: none; z-index: -1; }

.bg-grid {
  background-image:
    linear-gradient(rgba(103,232,249,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(103,232,249,0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  opacity: 0.9;
}

.bg-aurora {
  background:
    radial-gradient(600px 400px at 15% 10%, rgba(99,102,241,0.25), transparent 70%),
    radial-gradient(600px 400px at 85% 15%, rgba(34,211,238,0.2), transparent 70%),
    radial-gradient(700px 500px at 45% 95%, rgba(168,85,247,0.18), transparent 70%),
    radial-gradient(500px 400px at 90% 95%, rgba(236,72,153,0.12), transparent 70%);
}

/* Floating Lines (WebGL shader) — backdrop animato Grid Mode + scheda prodotto */
.bg-floating-lines {
  mix-blend-mode: screen;
}
.bg-floating-lines canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.bg-scan {
  height: 1px;
  top: 0;
  background: linear-gradient(90deg, transparent, var(--nx-accent) 50%, transparent);
  box-shadow: 0 0 12px var(--nx-accent);
  opacity: 0.5;
}

.perf-mode .bg-aurora,
.perf-mode .bg-grid,
.perf-mode .bg-floating-lines,
.perf-mode .bg-scan { display: none; }

/* ───────── Layout shell ───────── */
.nx-shell { min-height: 100vh; display: flex; flex-direction: column; }
.nx-main { flex: 1; padding-top: 64px; /* header height */ }
.nx-container { max-width: 1440px; margin: 0 auto; padding: 0 32px; }

/* ───────── Header ───────── */
.nx-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  height: 64px;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 32px;
  background: rgba(5,8,26,0.8);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--nx-border-subtle);
}

.nx-brand { display: flex; align-items: center; gap: 12px; }
.nx-logo {
  width: 32px; height: 32px;
  object-fit: contain;
  display: block;
}
.nx-brand-text {
  margin-top: 6px;
  font-family: var(--nx-font-mono);
  font-size: 10.5px; line-height: 1.2; letter-spacing: 1.5px;
}
.nx-brand-text b { font-size: 12px; font-weight: 600; letter-spacing: 2px; color: var(--nx-text-primary); display: block; }
.nx-brand-text span { color: var(--nx-text-muted); }

/* Mobile: solo logo, nascondi POMIAGER + AI/SHOWCASE/v2.6 */
@media (max-width: 720px) {
  .nx-brand-text { display: none; }
}

.nx-nav { display: flex; align-items: center; gap: 8px; }
.nx-nav a {
  font-family: var(--nx-font-mono); font-size: 10.5px; letter-spacing: 1.5px; text-transform: uppercase;
  padding: 6px 12px; border-radius: var(--nx-r-sm);
  color: var(--nx-text-muted); transition: color 0.15s, background 0.15s;
}
.nx-nav a:hover { color: var(--nx-text-primary); background: var(--nx-bg-elev-1); }
.nx-nav a.active { color: var(--nx-accent); }

.nx-header-right { display: flex; align-items: center; gap: 18px; }

.nx-status {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--nx-font-mono); font-size: 10px; letter-spacing: 1.8px; text-transform: uppercase;
  color: var(--nx-text-muted);
}
.nx-status-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--nx-cat-green);
  box-shadow: 0 0 6px var(--nx-cat-green);
  animation: nx-pulse 2s ease-in-out infinite;
}
@keyframes nx-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

.nx-user { display: flex; align-items: center; gap: 10px; }
.nx-user-handle {
  font-family: var(--nx-font-mono); font-size: 10px; letter-spacing: 1.5px;
  color: var(--nx-text-secondary);
}
.nx-avatar {
  width: 30px; height: 30px; border-radius: 50%;
  background: linear-gradient(135deg, #6366F1, #22D3EE);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--nx-font-mono); font-size: 10px; font-weight: 600;
  color: #05081A; letter-spacing: 0.5px;
}

/* ───────── Intro overlay (loading 2s, GRID gallery) ───────── */
.nx-intro {
  position: fixed;
  inset: 0;
  background: var(--nx-bg-base);
  z-index: 8000;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s ease;
}
.nx-intro.gone { opacity: 0; pointer-events: none; }
.nx-intro-inner {
  text-align: center;
  display: flex; flex-direction: column; align-items: center;
  gap: 18px;
}
.nx-intro-logo {
  width: 56px; height: 56px;
  object-fit: contain;
  display: block;
  animation: nx-intro-pulse 1.4s ease-in-out infinite;
}
@keyframes nx-intro-pulse {
  0%,100% { transform: scale(1); }
  50%     { transform: scale(1.12); }
}
.nx-intro-text {
  font-family: var(--nx-font-mono);
  font-size: 11px; letter-spacing: 6px;
  color: var(--nx-text-secondary);
}
.nx-intro-bar {
  width: 220px; height: 1px;
  background: rgba(255,255,255,0.08);
  overflow: hidden;
}
.nx-intro-bar span {
  display: block; height: 100%; width: 0;
  background: var(--nx-accent);
  box-shadow: 0 0 10px var(--nx-accent);
  animation: nx-intro-fill 1.8s ease-out forwards;
}
@keyframes nx-intro-fill {
  to { width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  .nx-intro-logo, .nx-intro-bar span { animation: none !important; }
}

/* Inline auth nav (PROFILO · ADMIN · LOGOUT) — coerente in GRID / DNA / NEURAL */
.nx-authnav {
  display: flex; align-items: center; gap: 12px;
  font-family: var(--nx-font-mono);
  font-size: 10px; letter-spacing: 2px; text-transform: uppercase;
  color: var(--nx-text-muted);
}
.nx-authnav form { display: contents; }
.nx-authnav a,
.nx-authnav button {
  background: transparent; border: 0; padding: 0; margin: 0;
  font: inherit; letter-spacing: inherit; color: inherit;
  text-decoration: none; cursor: pointer; text-transform: uppercase;
  transition: color 0.15s ease;
}
.nx-authnav a:hover,
.nx-authnav button:hover { color: var(--nx-accent); }
.nx-authnav .sep { opacity: 0.4; }

/* Mode toggle pill (vertical, left side fixed) — coerente con NEURAL/DNA */
.nx-mode-toggle {
  position: fixed; left: 2px; top: 70%; z-index: 60;
  transform: translateY(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  background: rgba(5, 8, 26, 0.55);
  border: 0.5px solid var(--nx-border-subtle);
  border-radius: 999px;
  padding: 8px 4px;
  margin: 0;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  font-family: var(--nx-font-mono);
  font-size: 10px; letter-spacing: 2px; text-transform: uppercase;
  pointer-events: auto;
}
.nx-mode-toggle-label {
  color: var(--nx-text-faded);
  font-size: 8.5px; letter-spacing: 2px;
  margin-bottom: 2px;
  pointer-events: none;
  writing-mode: sideways-lr;
}
.nx-mode-toggle form { display: contents; }
.nx-mode-toggle button,
.nx-mode-toggle a {
  background: transparent; border: 0;
  padding: 8px 3px; border-radius: 999px;
  font-family: inherit; font-size: inherit; letter-spacing: inherit;
  color: var(--nx-text-muted);
  cursor: pointer;
  transition: color 0.15s ease, background 0.15s ease;
  writing-mode: sideways-lr;
}
.nx-mode-toggle button:hover:not(.active):not(:disabled),
.nx-mode-toggle a:hover {
  color: var(--nx-text-primary);
  background: rgba(255, 255, 255, 0.06);
}
.nx-mode-toggle button.active {
  background: var(--nx-grad-primary);
  color: #05081A;
  cursor: default;
}
.nx-mode-toggle button:disabled { cursor: default; }

/* ───────── Buttons ───────── */
.nx-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 18px; border-radius: var(--nx-r-sm);
  font-family: var(--nx-font-mono); font-size: 11px; letter-spacing: 1.8px; text-transform: uppercase;
  cursor: pointer; transition: all 0.15s;
  border: 1px solid transparent;
}
.nx-btn-primary {
  background: var(--nx-grad-primary); color: #05081A; font-weight: 600;
  box-shadow: 0 6px 20px rgba(99,102,241,0.35);
}
.nx-btn-primary:hover { transform: translateY(-1px); box-shadow: 0 10px 28px rgba(99,102,241,0.45); }
.nx-btn-ghost {
  background: transparent; color: var(--nx-accent);
  border-color: var(--nx-border-accent);
}
.nx-btn-ghost:hover { background: rgba(103,232,249,0.08); }
.nx-btn-outline {
  background: transparent; color: var(--nx-text-secondary);
  border-color: var(--nx-border-default);
}
.nx-btn-outline:hover { color: var(--nx-text-primary); border-color: var(--nx-border-accent); }

/* ───────── Inputs ───────── */
.nx-input {
  width: 100%;
  padding: 10px 14px;
  background: var(--nx-bg-elev-1);
  border: 1px solid var(--nx-border-default);
  border-radius: var(--nx-r-sm);
  color: var(--nx-text-primary);
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s, background 0.15s;
}
.nx-input:focus {
  border-color: var(--nx-border-accent);
  background: var(--nx-bg-elev-2);
  box-shadow: 0 0 0 3px rgba(103,232,249,0.08);
}
select.nx-input { color-scheme: dark; }
select.nx-input option {
  background: var(--nx-bg-base);
  color: var(--nx-text-primary);
}
.nx-label {
  display: block; margin-bottom: 6px;
  font-family: var(--nx-font-mono); font-size: 10px; letter-spacing: 1.8px; text-transform: uppercase;
  color: var(--nx-text-muted);
}

/* ───────── HUD details ───────── */
.hud-label {
  font-family: var(--nx-font-mono); font-size: 9.5px; letter-spacing: 2px;
  text-transform: uppercase; color: var(--nx-text-muted);
}
.hud-value { font-family: var(--nx-font-mono); font-size: 10.5px; color: var(--nx-text-secondary); letter-spacing: 1px; }

.corner-bracket {
  position: absolute; width: 14px; height: 14px;
  border: 0.5px solid var(--nx-border-default);
  pointer-events: none;
}
.corner-bracket.tl { top: 0; left: 0; border-right: none; border-bottom: none; }
.corner-bracket.tr { top: 0; right: 0; border-left: none; border-bottom: none; }
.corner-bracket.bl { bottom: 0; left: 0; border-right: none; border-top: none; }
.corner-bracket.br { bottom: 0; right: 0; border-left: none; border-top: none; }

.corner-bracket.cyan { border-color: var(--nx-accent); }

/* ───────── Badges ───────── */
.nx-badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 3px 9px; border-radius: 999px;
  font-family: var(--nx-font-mono); font-size: 9.5px; letter-spacing: 1.5px; text-transform: uppercase;
  background: var(--nx-bg-elev-1);
  border: 0.5px solid var(--nx-border-default);
  color: var(--nx-text-secondary);
}
.nx-badge-featured {
  background: var(--nx-grad-featured);
  border-color: rgba(103,232,249,0.4);
  color: var(--nx-text-primary);
}
.nx-badge-cat {
  color: var(--cat, var(--nx-accent));
  border-color: color-mix(in srgb, var(--cat, var(--nx-accent)) 45%, transparent);
}
.nx-badge-demo {
  background: rgba(103,232,249,0.12);
  border: 0.5px solid var(--nx-accent);
  color: var(--nx-accent);
  padding: 3px 7px; font-size: 8.5px; letter-spacing: 1.5px;
}
.nx-badge-demo::before {
  content: ""; display: inline-block; width: 4px; height: 4px; border-radius: 50%;
  background: var(--nx-accent); box-shadow: 0 0 4px var(--nx-accent);
  animation: nx-pulse 1.6s ease-in-out infinite;
}

/* ───────── Messages ───────── */
.nx-messages { position: fixed; top: 80px; right: 24px; z-index: 60; display: flex; flex-direction: column; gap: 8px; }
.nx-message {
  padding: 10px 14px;
  background: rgba(5,8,26,0.9);
  border: 1px solid var(--nx-border-accent);
  border-radius: var(--nx-r-sm);
  color: var(--nx-text-primary);
  font-size: 13px;
  backdrop-filter: blur(10px);
  min-width: 260px;
}
.nx-message.error { border-color: #F87171; }
.nx-message.success { border-color: var(--nx-cat-green); }

/* ───────── Login page ───────── */
.nx-login-wrap {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  padding: 32px;
  position: relative;
}
.nx-login-card {
  width: 100%; max-width: 420px;
  padding: 40px 32px;
  background: rgba(5,8,26,0.7);
  border: 1px solid var(--nx-border-default);
  border-radius: var(--nx-r-lg);
  backdrop-filter: blur(16px);
  position: relative;
}
.nx-login-title {
  font-size: 24px; letter-spacing: -0.5px; margin-bottom: 6px;
}
.nx-login-sub {
  font-family: var(--nx-font-mono); font-size: 10.5px; letter-spacing: 1.8px;
  color: var(--nx-text-muted); text-transform: uppercase;
  margin-bottom: 28px;
}
.nx-login-field { margin-bottom: 18px; }
.nx-login-actions { margin-top: 24px; }
.nx-login-actions button { width: 100%; justify-content: center; }
.nx-login-footer {
  margin-top: 24px; font-family: var(--nx-font-mono); font-size: 9.5px; letter-spacing: 1.5px;
  color: var(--nx-text-faded); text-align: center;
}

/* ───────── Profile page ───────── */
.nx-profile { display: grid; grid-template-columns: 1fr; gap: 24px; max-width: 820px; margin: 40px auto; padding: 0 32px; }
.nx-card {
  padding: 28px;
  background: var(--nx-bg-elev-1);
  border: 1px solid var(--nx-border-subtle);
  border-radius: var(--nx-r-lg);
  position: relative;
}
.nx-card h2 {
  font-size: 18px; margin-bottom: 4px;
}
.nx-card-sub {
  font-family: var(--nx-font-mono); font-size: 10px; letter-spacing: 1.8px; text-transform: uppercase;
  color: var(--nx-text-muted); margin-bottom: 22px;
}
.nx-form-row { margin-bottom: 18px; }
.nx-form-row.inline { display: flex; align-items: center; gap: 10px; }
.nx-checkbox { width: 16px; height: 16px; accent-color: var(--nx-accent); }
.nx-hint { font-size: 12px; color: var(--nx-text-muted); margin-top: 4px; }
.nx-err { color: #F87171; font-size: 12px; margin-top: 4px; }

/* ============================================================================
   Border Glow (reactbits-inspired, adattato HUD)
   Overlay <span class="border-glow"></span> dentro a un parent posizionato
   con border-radius e overflow:hidden. La JS scrive --bg-cursor-angle e
   --bg-edge-prox sul parent (data-glow). Colore = --cat della categoria.
   ============================================================================ */
.border-glow {
  position: absolute;
  inset: 0;
  pointer-events: none;
  border-radius: inherit;
  z-index: 3;
  --bg-thickness: 1.4px;
  --bg-color: var(--cat, var(--nx-accent));
  --bg-color-hot: color-mix(in srgb, var(--bg-color) 55%, white);
}

/* Rotating gradient ring */
.border-glow::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: var(--bg-thickness);
  background: conic-gradient(
    from var(--bg-cursor-angle, 0deg) at 50% 50%,
    transparent 0deg,
    var(--bg-color) 35deg,
    var(--bg-color-hot) 75deg,
    var(--bg-color) 115deg,
    transparent 195deg,
    transparent 360deg
  );
  -webkit-mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
          mask-composite: exclude;
  opacity: var(--bg-edge-prox, 0);
  transition: opacity 0.35s ease;
}

/* Soft inner halo near the cursor edge */
.border-glow::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(
    circle at var(--bg-cursor-x, 50%) var(--bg-cursor-y, 50%),
    color-mix(in srgb, var(--bg-color) 35%, transparent) 0%,
    transparent 55%
  );
  mix-blend-mode: screen;
  opacity: calc(var(--bg-edge-prox, 0) * 0.55);
  transition: opacity 0.35s ease;
}

/* Idle decay: smoother fade-out when no longer hovered */
[data-glow]:not(:hover) .border-glow::before,
[data-glow]:not(:hover) .border-glow::after {
  transition: opacity 0.7s ease;
}

@media (prefers-reduced-motion: reduce) {
  .border-glow::before,
  .border-glow::after { transition: none; }
}
.perf-mode .border-glow { display: none; }