/* ==========================================================================
   NiaroTech — Site institucional
   Paleta derivada do logotipo (violeta de marca sobre fundo grafite escuro)
   Dark mode como padrão; tema claro via [data-theme="light"]
   ========================================================================== */

:root {
  /* Cores base (dark) */
  --bg:          #0a0812;
  --bg-alt:      #0e0a18;
  --surface:     #150f22;
  --surface-2:   #1c1530;
  --border:      rgba(157, 92, 230, 0.16);
  --border-2:    rgba(157, 92, 230, 0.30);

  /* Marca */
  --accent:      #9d5ce6;
  --accent-2:    #7c3aed;
  --accent-3:    #c084fc;
  --accent-soft: rgba(157, 92, 230, 0.14);
  --accent-glow: rgba(124, 58, 237, 0.35);
  --gradient:    linear-gradient(135deg, #9d5ce6 0%, #7c3aed 100%);
  --gradient-text: linear-gradient(120deg, #c084fc 0%, #9d5ce6 45%, #7c3aed 100%);

  /* Texto */
  --text:        #f1edf9;
  --text-muted:  #a79fb8;
  --text-dim:    #7d7591;
  --white:       #ffffff;

  /* Tipografia */
  --font-heading: "Space Grotesk", "Inter", system-ui, sans-serif;
  --font-body:    "Inter", system-ui, -apple-system, sans-serif;

  /* Layout */
  --radius:      18px;
  --radius-sm:   12px;
  --nav-h:       74px;
  --maxw:        1180px;
  --shadow:      0 20px 60px -20px rgba(0, 0, 0, 0.6);
  --shadow-accent: 0 20px 50px -18px var(--accent-glow);
  --ease:        cubic-bezier(0.22, 1, 0.36, 1);
}

/* Tema claro */
[data-theme="light"] {
  --bg:          #f6f4fb;
  --bg-alt:      #efeaf8;
  --surface:     #ffffff;
  --surface-2:   #f4f0fb;
  --border:      rgba(124, 58, 237, 0.16);
  --border-2:    rgba(124, 58, 237, 0.30);
  --accent-soft: rgba(124, 58, 237, 0.10);
  --accent-glow: rgba(124, 58, 237, 0.22);
  --text:        #1a1226;
  --text-muted:  #574c66;
  --text-dim:    #8a7f9c;
  --shadow:      0 20px 50px -24px rgba(60, 30, 110, 0.28);
}

/* ---------- Reset / base ---------- */
* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  font-family: var(--font-body);
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background-color 0.4s var(--ease), color 0.4s var(--ease);
}

/* Fundo com brilhos radiais sutis */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(900px 600px at 80% -5%, rgba(157, 92, 230, 0.16), transparent 60%),
    radial-gradient(700px 500px at 0% 20%, rgba(124, 58, 237, 0.12), transparent 55%),
    radial-gradient(600px 600px at 50% 110%, rgba(192, 132, 252, 0.08), transparent 60%);
}

h1, h2, h3, h4 { font-family: var(--font-heading); font-weight: 700; line-height: 1.15; letter-spacing: -0.02em; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
ul { margin: 0; padding: 0; list-style: none; }

.container { max-width: var(--maxw); }

:focus-visible {
  outline: 2px solid var(--accent-3);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Skip link (acessibilidade) */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  z-index: 2000;
  background: var(--accent-2);
  color: #fff;
  padding: 10px 18px;
  border-radius: 0 0 10px 0;
}
.skip-link:focus { left: 0; }

/* ---------- Utilitários ---------- */
.section { padding: 110px 0; position: relative; }
.section-tight { padding: 80px 0; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-3);
  padding: 6px 14px;
  border: 1px solid var(--border-2);
  border-radius: 100px;
  background: var(--accent-soft);
}

.section-title {
  font-size: clamp(1.9rem, 4vw, 2.9rem);
  margin: 18px 0 14px;
}
.section-lead {
  color: var(--text-muted);
  font-size: 1.08rem;
  max-width: 640px;
}
.text-gradient {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* ---------- Botões ---------- */
.btn {
  font-family: var(--font-heading);
  font-weight: 600;
  border-radius: 100px;
  padding: 12px 26px;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s var(--ease);
  border: 1px solid transparent;
}
.btn:focus-visible { outline: 2px solid var(--accent-3); outline-offset: 3px; }

.btn-brand {
  background: var(--gradient);
  color: #fff;
  box-shadow: var(--shadow-accent);
}
.btn-brand:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 24px 55px -16px var(--accent-glow); }

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-2);
  backdrop-filter: blur(6px);
}
.btn-ghost:hover { color: var(--text); background: var(--accent-soft); transform: translateY(-2px); border-color: var(--accent); }

.btn-sm { padding: 9px 20px; font-size: 0.92rem; }

/* ---------- Navbar ---------- */
.navbar {
  height: var(--nav-h);
  transition: background 0.35s var(--ease), backdrop-filter 0.35s var(--ease), border-color 0.35s var(--ease), box-shadow 0.35s var(--ease);
  background: transparent;
  border-bottom: 1px solid transparent;
}
.navbar.scrolled {
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(16px) saturate(160%);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 10px 30px -18px rgba(0, 0, 0, 0.7);
}
.navbar-brand { display: flex; align-items: center; gap: 11px; font-family: var(--font-heading); font-weight: 700; font-size: 1.25rem; color: var(--text); letter-spacing: -0.02em; }
.navbar-brand img { width: 38px; height: 38px; border-radius: 9px; }
.brand-accent { color: var(--accent-3); }

.navbar-nav .nav-link {
  color: var(--text-muted);
  font-weight: 500;
  padding: 8px 14px !important;
  border-radius: 100px;
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
  position: relative;
}
.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active { color: var(--text); }
.navbar-nav .nav-link::after {
  content: "";
  position: absolute;
  left: 14px; right: 14px; bottom: 2px;
  height: 2px;
  background: var(--gradient);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s var(--ease);
}
.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after { transform: scaleX(1); }

.navbar-toggler { border: 1px solid var(--border-2); padding: 6px 10px; }
.navbar-toggler:focus { box-shadow: none; }
.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='%23c084fc' stroke-width='2.2' stroke-linecap='round' d='M4 8h22M4 15h22M4 22h22'/%3E%3C/svg%3E");
}

.theme-toggle {
  background: transparent;
  border: 1px solid var(--border-2);
  color: var(--text);
  width: 42px; height: 42px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.2s var(--ease), transform 0.2s var(--ease);
}
.theme-toggle:hover { background: var(--accent-soft); transform: translateY(-1px); }
.theme-toggle .icon-sun { display: none; }
[data-theme="light"] .theme-toggle .icon-sun { display: block; }
[data-theme="light"] .theme-toggle .icon-moon { display: none; }

/* Colapso mobile */
@media (max-width: 991.98px) {
  .navbar-collapse {
    background: var(--surface);
    margin-top: 12px;
    padding: 14px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
  }
  .navbar-nav .nav-link { padding: 12px 14px !important; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: calc(var(--nav-h) + 90px) 0 100px;
  overflow: hidden;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px;
  border-radius: 100px;
  border: 1px solid var(--border-2);
  background: var(--accent-soft);
  color: var(--text-muted);
  font-size: 0.86rem;
  font-weight: 500;
}
.hero-badge .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent-3); box-shadow: 0 0 0 4px rgba(192,132,252,0.18); }

.hero h1 {
  font-size: clamp(2.4rem, 6vw, 4.3rem);
  margin: 22px 0 20px;
  line-height: 1.05;
}
.hero-lead {
  font-size: clamp(1.05rem, 2.2vw, 1.28rem);
  color: var(--text-muted);
  max-width: 620px;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }

.hero-stats { display: flex; flex-wrap: wrap; gap: 34px; margin-top: 48px; }
.hero-stats .stat-num { font-family: var(--font-heading); font-size: 1.9rem; font-weight: 700; }
.hero-stats .stat-lbl { color: var(--text-muted); font-size: 0.9rem; }

/* Painel visual do hero */
.hero-visual {
  position: relative;
  border-radius: 24px;
  padding: 22px;
  background: linear-gradient(160deg, var(--surface) 0%, var(--surface-2) 100%);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.hero-visual::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: 24px;
  padding: 1px;
  background: linear-gradient(160deg, rgba(157,92,230,0.5), transparent 40%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}
.hero-visual .glow {
  position: absolute;
  width: 260px; height: 260px;
  border-radius: 50%;
  filter: blur(60px);
  background: var(--accent-glow);
  top: -60px; right: -40px;
  z-index: 0;
}
.mock-window { position: relative; z-index: 1; }
.mock-bar { display: flex; gap: 7px; margin-bottom: 16px; }
.mock-bar span { width: 11px; height: 11px; border-radius: 50%; background: var(--border-2); }
.mock-bar span:first-child { background: #ff5f57; }
.mock-bar span:nth-child(2) { background: #febc2e; }
.mock-bar span:nth-child(3) { background: #28c840; }

.mock-row { display: flex; align-items: center; gap: 12px; padding: 13px 14px; border-radius: 12px; background: rgba(157,92,230,0.06); border: 1px solid var(--border); margin-bottom: 10px; }
.mock-row .ic { width: 34px; height: 34px; border-radius: 9px; background: var(--gradient); display: grid; place-items: center; color: #fff; flex-shrink: 0; }
.mock-row .ln { flex: 1; }
.mock-row .ln b { display: block; font-size: 0.9rem; }
.mock-row .ln small { color: var(--text-muted); font-size: 0.78rem; }
.mock-row .pill { font-size: 0.72rem; padding: 4px 10px; border-radius: 100px; background: var(--accent-soft); color: var(--accent-3); border: 1px solid var(--border-2); white-space: nowrap; }

/* Marquee de tecnologias */
.trust-strip { border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 26px 0; background: color-mix(in srgb, var(--surface) 40%, transparent); }
.trust-strip p { color: var(--text-dim); font-size: 0.82rem; letter-spacing: 0.12em; text-transform: uppercase; margin-bottom: 14px; }
.trust-items { display: flex; flex-wrap: wrap; gap: 14px 30px; align-items: center; }
.trust-items span { color: var(--text-muted); font-family: var(--font-heading); font-weight: 600; opacity: 0.85; }

/* ---------- Cards genéricos ---------- */
.card-glass {
  background: linear-gradient(165deg, var(--surface) 0%, var(--surface-2) 120%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
  height: 100%;
  transition: transform 0.35s var(--ease), border-color 0.35s var(--ease), box-shadow 0.35s var(--ease);
  position: relative;
  overflow: hidden;
}
.card-glass:hover { transform: translateY(-6px); border-color: var(--border-2); box-shadow: var(--shadow); }

/* ---------- Produtos ---------- */
.product-card { display: flex; flex-direction: column; }
.product-card .p-icon {
  width: 58px; height: 58px;
  border-radius: 15px;
  display: grid; place-items: center;
  background: var(--gradient);
  color: #fff;
  margin-bottom: 20px;
  box-shadow: var(--shadow-accent);
}
.product-card h3 { font-size: 1.4rem; margin-bottom: 4px; }
.product-card .p-tag { color: var(--accent-3); font-size: 0.85rem; font-weight: 600; letter-spacing: 0.04em; margin-bottom: 14px; }
.product-card .p-desc { color: var(--text-muted); font-size: 0.96rem; margin-bottom: 18px; }
.product-card .p-feats { margin-bottom: 24px; display: grid; gap: 10px; }
.product-card .p-feats li { display: flex; gap: 10px; align-items: flex-start; font-size: 0.92rem; color: var(--text); }
.product-card .p-feats svg { flex-shrink: 0; margin-top: 3px; color: var(--accent-3); }
.product-card .p-foot { margin-top: auto; }

/* Card "em breve" (4º produto preparado) */
.product-soon {
  border-style: dashed;
  border-color: var(--border-2);
  background: transparent;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--text-muted);
  min-height: 260px;
}
.product-soon .p-icon { background: var(--accent-soft); color: var(--accent-3); box-shadow: none; }

/* ---------- Diferenciais ---------- */
.feature-card { text-align: left; }
.feature-card .f-icon {
  width: 50px; height: 50px;
  border-radius: 13px;
  display: grid; place-items: center;
  background: var(--accent-soft);
  border: 1px solid var(--border-2);
  color: var(--accent-3);
  margin-bottom: 18px;
}
.feature-card h3 { font-size: 1.15rem; margin-bottom: 8px; }
.feature-card p { color: var(--text-muted); font-size: 0.94rem; margin: 0; }

/* ---------- Sobre ---------- */
.about-panel {
  background: linear-gradient(160deg, var(--surface) 0%, var(--surface-2) 130%);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 40px;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}
.about-panel .ring { position: absolute; width: 320px; height: 320px; border-radius: 50%; border: 1px solid var(--border-2); right: -120px; top: -120px; }
.about-values { display: grid; gap: 18px; margin-top: 8px; }
.about-values li { display: flex; gap: 14px; align-items: flex-start; }
.about-values .vi { width: 40px; height: 40px; border-radius: 11px; background: var(--gradient); display: grid; place-items: center; color: #fff; flex-shrink: 0; }
.about-values b { display: block; }
.about-values small { color: var(--text-muted); }

/* ---------- Contato ---------- */
.contact-form .form-label { font-size: 0.86rem; font-weight: 600; color: var(--text); margin-bottom: 6px; }
.contact-form .form-control,
.contact-form .form-select {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 12px;
  padding: 12px 15px;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.contact-form .form-control::placeholder { color: var(--text-dim); }
.contact-form .form-control:focus,
.contact-form .form-select:focus {
  background: var(--bg-alt);
  color: var(--text);
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.contact-form .form-select option { background: var(--surface); color: var(--text); }
.contact-form .invalid-feedback { font-size: 0.82rem; }
.contact-form .form-control.is-invalid,
.contact-form .form-select.is-invalid { border-color: #ff6b6b; }

.contact-info li { display: flex; gap: 14px; align-items: center; margin-bottom: 20px; }
.contact-info .ci { width: 46px; height: 46px; border-radius: 12px; background: var(--accent-soft); border: 1px solid var(--border-2); display: grid; place-items: center; color: var(--accent-3); flex-shrink: 0; }
.contact-info b { display: block; font-size: 0.95rem; }
.contact-info a, .contact-info span { color: var(--text-muted); font-size: 0.92rem; }
.contact-info a:hover { color: var(--accent-3); }

.social-links { display: flex; gap: 12px; margin-top: 6px; }
.social-links a {
  width: 44px; height: 44px;
  border-radius: 12px;
  display: grid; place-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-muted);
  transition: transform 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.social-links a:hover { color: var(--accent-3); border-color: var(--accent); transform: translateY(-3px); }

.form-alert { display: none; border-radius: 12px; padding: 14px 18px; margin-top: 18px; font-size: 0.92rem; }
.form-alert.success { display: block; background: rgba(40, 200, 100, 0.12); border: 1px solid rgba(40, 200, 100, 0.35); color: #7be0a3; }

/* ---------- Modais ---------- */
.modal-content {
  background: var(--surface);
  border: 1px solid var(--border-2);
  border-radius: var(--radius);
  color: var(--text);
}
.modal-header { border-bottom: 1px solid var(--border); }
.modal-footer { border-top: 1px solid var(--border); }
.modal-title { font-family: var(--font-heading); }
.btn-close { filter: invert(1) grayscale(1) brightness(1.6); }
[data-theme="light"] .btn-close { filter: none; }
.modal .p-icon { width: 52px; height: 52px; border-radius: 14px; background: var(--gradient); display: grid; place-items: center; color: #fff; }
.modal ul.detail-list { display: grid; gap: 11px; }
.modal ul.detail-list li { display: flex; gap: 10px; align-items: flex-start; color: var(--text-muted); }
.modal ul.detail-list svg { color: var(--accent-3); flex-shrink: 0; margin-top: 3px; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--border); padding: 64px 0 30px; background: color-mix(in srgb, var(--surface) 45%, transparent); }
.site-footer .f-brand { display: flex; align-items: center; gap: 11px; font-family: var(--font-heading); font-weight: 700; font-size: 1.2rem; margin-bottom: 14px; }
.site-footer .f-brand img { width: 36px; height: 36px; border-radius: 9px; }
.site-footer p { color: var(--text-muted); font-size: 0.92rem; }
.footer-title { font-family: var(--font-heading); font-size: 0.82rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-dim); margin-bottom: 16px; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: var(--text-muted); font-size: 0.93rem; transition: color 0.2s var(--ease); }
.footer-links a:hover { color: var(--accent-3); }
.footer-bottom { border-top: 1px solid var(--border); margin-top: 44px; padding-top: 24px; display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; align-items: center; }
.footer-bottom p { margin: 0; color: var(--text-dim); font-size: 0.86rem; }

/* ---------- Animações de entrada ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); will-change: opacity, transform; }
.reveal.is-visible { opacity: 1; transform: none; }
.reveal-delay-1 { transition-delay: 0.08s; }
.reveal-delay-2 { transition-delay: 0.16s; }
.reveal-delay-3 { transition-delay: 0.24s; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1 !important; transform: none !important; transition: none; }
}

/* ---------- Back to top ---------- */
.to-top {
  position: fixed;
  right: 24px; bottom: 24px;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--gradient);
  color: #fff;
  border: none;
  display: grid; place-items: center;
  box-shadow: var(--shadow-accent);
  opacity: 0; visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease), visibility 0.3s;
  z-index: 900;
  cursor: pointer;
}
.to-top.show { opacity: 1; visibility: visible; transform: none; }

/* ---------- Responsivo ---------- */
@media (max-width: 991.98px) {
  .section { padding: 84px 0; }
  .hero { padding-top: calc(var(--nav-h) + 50px); }
  .hero-visual { margin-top: 44px; }
}
@media (max-width: 575.98px) {
  .section { padding: 66px 0; }
  .hero-stats { gap: 22px; }
  .about-panel { padding: 26px; }
  .card-glass { padding: 24px; }
  .to-top { right: 16px; bottom: 16px; }
}