/* =============================================
   NANOSISTECCK - CSS Global
   tools.nanosistecck.com
   ============================================= */

/* ---------- RESET & BASE ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary:    #1a73e8;   /* azul principal */
  --primary-d:  #1558b0;   /* azul escuro */
  --accent:     #00c48c;   /* verde ação */
  --orange:     #ff6b2b;   /* laranja CTA */
  --orange-d:   #e05520;
  --bg:         #f7f8fc;   /* fundo claro */
  --surface:    #ffffff;
  --surface2:   #f0f3fa;
  --border:     #e2e6f0;
  --text:       #1e2130;
  --text2:      #4b5568;
  --text3:      #8a93a8;
  --radius:     12px;
  --radius-sm:  8px;
  --shadow:     0 2px 16px rgba(26,115,232,.10);
  --shadow-md:  0 4px 24px rgba(26,115,232,.14);
  --trans:      .2s ease;
  --font:       'Inter', 'Segoe UI', Arial, sans-serif;
  --max-w:      1200px;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

code {
  font-family: Consolas, Monaco, monospace;
  font-size: .92em;
  background: rgba(15,27,53,.06);
  padding: .1rem .35rem;
  border-radius: 6px;
}

img { max-width: 100%; display: block; }
a  { color: var(--primary); text-decoration: none; transition: color var(--trans); }
a:hover { color: var(--primary-d); }
ul { list-style: none; }

/* ---------- TYPOGRAPHY ---------- */
h1, h2, h3, h4, h5 {
  line-height: 1.25;
  font-weight: 700;
  color: var(--text);
}
h1 { font-size: clamp(1.75rem, 4vw, 2.8rem); }
h2 { font-size: clamp(1.4rem, 3vw, 2rem); }
h3 { font-size: clamp(1.1rem, 2.5vw, 1.35rem); }
p  { color: var(--text2); }

/* ---------- LAYOUT ---------- */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.25rem;
}

main { flex: 1; }

.section { padding: 4rem 0; }
.section--alt { background: var(--surface); }

/* ---------- HEADER ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  padding: .85rem 0;
  box-shadow: 0 1px 8px rgba(0,0,0,.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: .55rem;
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--text);
  letter-spacing: -.5px;
}
.logo:hover { color: var(--primary); }

.logo-icon {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 9px;
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  font-size: .95rem;
  font-weight: 900;
  letter-spacing: -.5px;
  flex-shrink: 0;
}

.logo-text span { color: var(--primary); }

.main-nav { display: flex; align-items: center; gap: .25rem; }

.main-nav a {
  padding: .45rem .85rem;
  border-radius: var(--radius-sm);
  font-size: .9rem;
  font-weight: 500;
  color: var(--text2);
  transition: background var(--trans), color var(--trans);
}
.main-nav a:hover,
.main-nav a.active { background: var(--surface2); color: var(--primary); }

.nav-cta {
  background: var(--primary) !important;
  color: #fff !important;
  padding: .45rem 1rem !important;
}
.nav-cta:hover { background: var(--primary-d) !important; }

.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: .4rem;
  color: var(--text);
  font-size: 1.4rem;
}

/* ---------- HERO ---------- */
.hero {
  background: linear-gradient(135deg, #0f1b35 0%, #1a2f5e 50%, #0d2545 100%);
  color: #fff;
  padding: 4.5rem 0 3.5rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(circle at 20% 50%, rgba(26,115,232,.3) 0%, transparent 60%),
    radial-gradient(circle at 80% 20%, rgba(0,196,140,.2) 0%, transparent 50%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  position: relative;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  background: rgba(0,196,140,.15);
  border: 1px solid rgba(0,196,140,.35);
  color: var(--accent);
  font-size: .78rem;
  font-weight: 600;
  padding: .3rem .7rem;
  border-radius: 50px;
  letter-spacing: .5px;
  text-transform: uppercase;
  margin-bottom: 1.2rem;
}

.hero h1 { color: #fff; margin-bottom: 1rem; }
.hero h1 span { color: var(--accent); }
.hero p { color: rgba(255,255,255,.75); font-size: 1.05rem; margin-bottom: 2rem; max-width: 480px; }

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1.5rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: .95rem;
  cursor: pointer;
  border: none;
  transition: transform var(--trans), box-shadow var(--trans), background var(--trans);
  text-decoration: none;
}
.btn:active { transform: scale(.97); }

.btn-primary {
  background: var(--orange);
  color: #fff;
  box-shadow: 0 4px 16px rgba(255,107,43,.4);
}
.btn-primary:hover {
  background: var(--orange-d);
  color: #fff;
  box-shadow: 0 6px 20px rgba(255,107,43,.5);
  transform: translateY(-1px);
}

.btn-secondary {
  background: rgba(255,255,255,.12);
  color: #fff;
  border: 1px solid rgba(255,255,255,.25);
}
.btn-secondary:hover {
  background: rgba(255,255,255,.2);
  color: #fff;
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}
.btn-outline:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-1px);
}

.btn-green {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 16px rgba(0,196,140,.35);
}
.btn-green:hover {
  background: #00aa7a;
  color: #fff;
  transform: translateY(-1px);
}

.btn-lg { padding: .9rem 2rem; font-size: 1.05rem; }
.btn-block { width: 100%; justify-content: center; }

/* Hero visual */
.hero-visual {
  display: flex;
  flex-direction: column;
  gap: .75rem;
}

.hero-card {
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  backdrop-filter: blur(6px);
  transition: transform var(--trans), background var(--trans);
}
.hero-card:hover { background: rgba(255,255,255,.13); transform: translateX(4px); }

.hero-card-icon {
  width: 44px; height: 44px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.hero-card-text { font-size: .88rem; font-weight: 600; color: #fff; }
.hero-card-sub  { font-size: .75rem; color: rgba(255,255,255,.55); }

/* ---------- STATS BAR ---------- */
.stats-bar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 1.5rem 0;
}
.stats-inner {
  display: flex;
  justify-content: center;
  gap: 3rem;
  flex-wrap: wrap;
}
.stat-item { text-align: center; }
.stat-num {
  display: block;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.1;
}
.stat-label {
  font-size: .8rem;
  color: var(--text3);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .5px;
}

/* ---------- TOOLS GRID ---------- */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.tool-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: .75rem;
  transition: transform var(--trans), box-shadow var(--trans), border-color var(--trans);
  text-decoration: none;
  color: inherit;
  position: relative;
  overflow: hidden;
}
.tool-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--trans);
}
.tool-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
  color: inherit;
}
.tool-card:hover::before { transform: scaleX(1); }

.tool-card-icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.tool-card-title { font-size: 1rem; font-weight: 700; color: var(--text); }
.tool-card-desc  { font-size: .85rem; color: var(--text2); flex: 1; }
.tool-card-tag   {
  font-size: .72rem; font-weight: 600; color: var(--primary);
  background: rgba(26,115,232,.08);
  padding: .2rem .6rem; border-radius: 50px;
  display: inline-block; width: fit-content;
}

/* ---------- SECTION HEADER ---------- */
.section-header {
  text-align: center;
  margin-bottom: 2.5rem;
}
.section-header p { max-width: 560px; margin: .75rem auto 0; font-size: .98rem; }
.section-eyebrow {
  font-size: .78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--primary);
  margin-bottom: .5rem;
  display: block;
}

/* ---------- AD PLACEHOLDER ---------- */
.ad-slot {
  background: var(--surface2);
  border: 2px dashed var(--border);
  border-radius: var(--radius-sm);
  padding: 1.5rem;
  text-align: center;
  color: var(--text3);
  font-size: .8rem;
  font-weight: 500;
  letter-spacing: .5px;
  text-transform: uppercase;
  margin: 1.5rem 0;
}
.ad-slot-leaderboard { min-height: 90px; }
.ad-slot-rectangle   { min-height: 250px; max-width: 336px; margin: 1.5rem auto; }

/* ---------- TOOL PAGE ---------- */
.tool-page {
  max-width: 820px;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
}

.tool-header {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.tool-page-icon {
  width: 64px; height: 64px;
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 2rem;
  flex-shrink: 0;
}

.tool-header h1 { font-size: clamp(1.4rem, 3vw, 1.9rem); margin-bottom: .35rem; }
.tool-header p  { font-size: .95rem; max-width: 540px; }

.tool-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow);
}

/* Form elements */
.form-group { margin-bottom: 1.25rem; }
.form-group label {
  display: block;
  font-size: .87rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: .45rem;
}
.form-control {
  width: 100%;
  padding: .7rem 1rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: .95rem;
  color: var(--text);
  background: var(--bg);
  transition: border-color var(--trans), box-shadow var(--trans);
  outline: none;
}
.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26,115,232,.12);
  background: #fff;
}
.form-control[readonly] { background: var(--surface2); cursor: default; }

select.form-control { cursor: pointer; }
textarea.form-control { resize: vertical; min-height: 100px; }

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
}

/* Result box */
.result-box {
  background: linear-gradient(135deg, #f0f7ff, #e8f5ff);
  border: 1.5px solid rgba(26,115,232,.2);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-top: 1.5rem;
  display: none;
}
.result-box.show { display: block; }

.result-label { font-size: .8rem; font-weight: 600; text-transform: uppercase; letter-spacing: .5px; color: var(--primary); margin-bottom: .35rem; }
.result-value { font-size: 2rem; font-weight: 800; color: var(--text); }
.result-value span { font-size: 1rem; font-weight: 500; color: var(--text2); }

.result-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}
.result-item {
  background: #fff;
  border-radius: var(--radius-sm);
  padding: .9rem 1rem;
  border: 1px solid var(--border);
}
.result-item .label { font-size: .75rem; color: var(--text3); font-weight: 600; text-transform: uppercase; letter-spacing: .4px; }
.result-item .value { font-size: 1.2rem; font-weight: 700; color: var(--text); margin-top: .2rem; }

/* ---------- SEO TEXT ---------- */
.seo-content {
  margin-top: 2.5rem;
}
.seo-content h2 { margin-bottom: .75rem; }
.seo-content h3 { margin-top: 1.75rem; margin-bottom: .5rem; font-size: 1.1rem; }
.seo-content p  { margin-bottom: .9rem; font-size: .95rem; }
.seo-content ul {
  list-style: disc;
  padding-left: 1.5rem;
  color: var(--text2);
  font-size: .95rem;
  margin-bottom: .9rem;
}
.seo-content ul li { margin-bottom: .3rem; }

/* ---------- BREADCRUMB ---------- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: .4rem;
  font-size: .82rem;
  color: var(--text3);
  margin-bottom: 2rem;
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--text3); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { opacity: .5; }

/* ---------- TAGS ---------- */
.tag {
  display: inline-block;
  padding: .2rem .65rem;
  border-radius: 50px;
  font-size: .75rem;
  font-weight: 600;
}
.tag-blue   { background: rgba(26,115,232,.1);  color: var(--primary); }
.tag-green  { background: rgba(0,196,140,.12);  color: #00956b; }
.tag-orange { background: rgba(255,107,43,.1);  color: var(--orange); }
.tag-gray   { background: var(--surface2);       color: var(--text3); }

/* ---------- FOOTER ---------- */
.site-footer {
  background: #0f1b35;
  color: rgba(255,255,255,.65);
  padding: 3.5rem 0 1.5rem;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 2.5rem;
}

.footer-brand .logo { color: #fff; margin-bottom: .75rem; }
.footer-brand p { font-size: .88rem; max-width: 300px; line-height: 1.7; }

.footer-col h4 {
  font-size: .82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: rgba(255,255,255,.4);
  margin-bottom: 1rem;
}
.footer-col a {
  display: block;
  color: rgba(255,255,255,.6);
  font-size: .88rem;
  padding: .2rem 0;
  transition: color var(--trans);
}
.footer-col a:hover { color: var(--accent); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: .75rem;
}
.footer-bottom p { font-size: .82rem; }
.footer-links { display: flex; gap: 1.25rem; }
.footer-links a { font-size: .82rem; color: rgba(255,255,255,.4); }
.footer-links a:hover { color: rgba(255,255,255,.8); }

/* ---------- BACK LINK ---------- */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  color: var(--text3);
  font-size: .87rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
  transition: color var(--trans);
}
.back-link:hover { color: var(--primary); }

/* ---------- NOTICE ---------- */
.notice {
  border-radius: var(--radius-sm);
  padding: .9rem 1.1rem;
  font-size: .87rem;
  display: flex;
  gap: .6rem;
  align-items: flex-start;
  margin: 1rem 0;
}
.notice-info    { background: rgba(26,115,232,.07);  border-left: 3px solid var(--primary); color: var(--text2); }
.notice-success { background: rgba(0,196,140,.08);   border-left: 3px solid var(--accent);  color: var(--text2); }
.notice-warn    { background: rgba(255,107,43,.08);  border-left: 3px solid var(--orange);  color: var(--text2); }

/* ---------- COPY BTN ---------- */
.copy-btn {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .4rem .85rem;
  font-size: .8rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  transition: background var(--trans);
}
.copy-btn:hover { background: var(--border); }
.copy-btn.copied { background: rgba(0,196,140,.15); color: #00956b; border-color: var(--accent); }

/* ---------- RELATED TOOLS ---------- */
.related-tools {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}
.related-tools h2 { margin-bottom: 1.25rem; font-size: 1.2rem; }
.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: .85rem;
}
.related-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1rem;
  display: flex;
  align-items: center;
  gap: .75rem;
  font-size: .88rem;
  font-weight: 600;
  color: var(--text);
  transition: border-color var(--trans), transform var(--trans);
}
.related-card:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }
.related-card-icon { font-size: 1.3rem; }

/* ---------- ADMIN ---------- */
.admin-body { background: linear-gradient(180deg, #f5f7fd 0%, #eef3fb 100%); }
.admin-shell { max-width: 1240px; }
.admin-header { text-align: left; margin-bottom: 1.5rem; }
.admin-layout {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 1.5rem;
  align-items: start;
}
.admin-sidebar {
  position: sticky;
  top: 96px;
}
.admin-form {
  display: grid;
  gap: 1.5rem;
}
.admin-subsection {
  padding-top: 1.2rem;
  margin-top: 1.2rem;
  border-top: 1px solid var(--border);
}
.admin-subsection:first-of-type {
  padding-top: 0;
  margin-top: 0;
  border-top: 0;
}
.admin-path {
  margin: -.2rem 0 1rem;
  font-size: .85rem;
}
.admin-help {
  margin-bottom: 1rem;
  font-size: .92rem;
}

/* ---------- MOBILE ---------- */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .admin-layout { grid-template-columns: 1fr; }
  .admin-sidebar { position: static; }
}

@media (max-width: 640px) {
  .main-nav { display: none; position: absolute; top: 100%; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--border);
    flex-direction: column; padding: .75rem; gap: .1rem;
    box-shadow: 0 8px 20px rgba(0,0,0,.1);
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: .7rem 1rem; border-radius: var(--radius-sm); }
  .hamburger { display: block; }
  .header-inner { position: relative; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .stats-inner { gap: 1.5rem; }
  .section { padding: 2.5rem 0; }
  .tool-header { flex-direction: column; gap: .75rem; }
  .form-row { grid-template-columns: 1fr; }
}