/* ================================================================
   Fabreu Telecom Superspeed — Stylesheet
   Paleta oficial: âmbar #F8AF2D + gradiente roxo-azul do app icon
   ================================================================ */

:root {
  /* Paleta Fabreu */
  --fb-amber:        #F8AF2D;
  --fb-amber-dark:   #E59A14;
  --fb-amber-darker: #B87600;
  --fb-amber-light:  #FFEDC2;
  --fb-amber-bg:     #FFF8E7;
  --fb-amber-glow:   rgba(248, 175, 45, 0.25);

  /* Gradiente roxo-azulado do app icon */
  --fb-purple:       #6B3FA0;
  --fb-purple-dark:  #4A2A78;
  --fb-blue-deep:    #2E3470;
  --fb-purple-light: #F0E9F7;

  --fb-dark:        #2A2733;
  --fb-dark-soft:   #4A4654;
  --fb-bg:          #FFFFFF;
  --fb-bg-soft:     #FAF8F3;
  --fb-bg-muted:    #F0EDE5;
  --fb-surface:     #FFFFFF;
  --fb-border:      rgba(42, 39, 51, 0.10);
  --fb-border-strong: rgba(42, 39, 51, 0.22);

  --fb-text:        #1A1820;
  --fb-text-soft:   #4A4654;
  --fb-text-muted:  #7A7686;
  --fb-text-on-amber: #1A1820;
  --fb-text-on-purple: #FFFFFF;

  --success:        #10B981;
  --warning:        #F59E0B;
  --danger:         #EF4444;

  --shadow-sm:      0 1px 2px rgba(42, 39, 51, 0.05);
  --shadow-md:      0 4px 12px rgba(42, 39, 51, 0.08);
  --shadow-lg:      0 12px 32px rgba(42, 39, 51, 0.14);
  --shadow-amber:   0 10px 30px rgba(248, 175, 45, 0.30);
  --shadow-purple:  0 10px 30px rgba(107, 63, 160, 0.25);

  --radius:         14px;
  --radius-sm:      8px;
  --radius-lg:      20px;
  --container:      1180px;

  --font-sans:      'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono:      'JetBrains Mono', ui-monospace, 'SF Mono', Consolas, monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--fb-text);
  background: var(--fb-bg-soft);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
button { font-family: inherit; cursor: pointer; border: 0; background: none; }
a { color: inherit; text-decoration: none; }
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ================================================================
   HEADER & LOGO
   Logo Fabreu: âmbar em fundo roxo escuro (caixa) ou roxo escuro em fundo claro
   ================================================================ */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--fb-border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 76px; }

.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px;
  background: linear-gradient(135deg, var(--fb-purple) 0%, var(--fb-blue-deep) 100%);
  border-radius: 50%;
  box-shadow: var(--shadow-sm);
}
.brand-mark-f {
  font-family: 'Inter', serif;
  font-weight: 800; font-size: 22px;
  color: #fff; font-style: italic; line-height: 1;
  letter-spacing: -0.02em;
}
.brand-name { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name .fabreu {
  font-weight: 800; font-size: 19px;
  color: var(--fb-dark); letter-spacing: -0.02em;
}
.brand-name .telecom {
  font-weight: 600; font-size: 11px;
  color: var(--fb-amber-darker);
  letter-spacing: 0.18em; text-transform: uppercase;
}
.brand-sub {
  margin-left: 14px; padding-left: 14px;
  border-left: 1px solid var(--fb-border-strong);
  font-size: 12px; font-weight: 500;
  color: var(--fb-text-muted);
  text-transform: uppercase; letter-spacing: 0.08em;
}

.site-nav { display: flex; align-items: center; gap: 28px; }
.site-nav a { font-size: 14px; font-weight: 500; color: var(--fb-text-soft); transition: color .15s; }
.site-nav a:hover { color: var(--fb-amber-darker); }
.nav-cta {
  padding: 9px 18px;
  background: var(--fb-amber);
  color: var(--fb-text-on-amber) !important;
  border-radius: 999px; font-weight: 700;
}
.nav-cta:hover { background: var(--fb-amber-dark); }

/* ================================================================
   HERO
   ================================================================ */
.hero {
  position: relative; padding: 64px 0 48px;
  background:
    radial-gradient(900px 500px at 100% -10%, var(--fb-amber-light) 0%, transparent 60%),
    radial-gradient(700px 400px at -10% 100%, var(--fb-purple-light) 0%, transparent 60%),
    var(--fb-bg);
  overflow: hidden;
}
.hero-inner { display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px; align-items: center; }

.eyebrow {
  display: inline-block; padding: 6px 14px;
  background: var(--fb-amber-light); color: var(--fb-amber-darker);
  font-size: 12px; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  border-radius: 999px; margin-bottom: 24px;
}
.hero h1 {
  font-size: clamp(32px, 4.5vw, 52px); font-weight: 800;
  letter-spacing: -0.03em; line-height: 1.05; margin-bottom: 20px;
  color: var(--fb-dark);
}
.hero h1 .accent {
  background: linear-gradient(90deg, var(--fb-amber-dark) 0%, var(--fb-amber) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-lead { font-size: 18px; color: var(--fb-text-soft); max-width: 540px; margin-bottom: 32px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 28px; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 8px; }

.meta-pill {
  display: inline-flex; align-items: center;
  padding: 6px 14px;
  background: var(--fb-surface); border: 1px solid var(--fb-border);
  border-radius: 999px; font-size: 13px; color: var(--fb-text-soft);
  font-family: var(--font-mono);
}
.meta-pill strong { margin-left: 6px; color: var(--fb-text); font-weight: 600; }

.hero-card {
  position: relative; padding: 32px;
  background: linear-gradient(135deg, #fff 0%, var(--fb-amber-bg) 100%);
  border: 1px solid var(--fb-border); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}
.hero-card-glow {
  position: absolute; inset: -40px;
  background: radial-gradient(circle at 50% 0%, var(--fb-amber-glow) 0%, transparent 60%);
  z-index: -1; filter: blur(20px);
}
.hero-stat-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.stat {
  padding: 16px; background: var(--fb-bg-soft);
  border-radius: var(--radius-sm); border: 1px solid var(--fb-border);
}
.stat-label {
  display: block; font-size: 11px; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--fb-text-muted); margin-bottom: 6px;
}
.stat-value {
  display: block; font-family: var(--font-mono);
  font-size: 22px; font-weight: 700; color: var(--fb-text);
  transition: color .2s;
}
.stat-value em { font-style: normal; font-size: 12px; font-weight: 500; color: var(--fb-text-muted); margin-left: 4px; }
.stat-value.is-live { color: var(--fb-amber-darker); }

/* ================================================================
   BUTTONS
   ================================================================ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 22px; font-size: 14px; font-weight: 700;
  border-radius: 10px; border: 1px solid transparent;
  transition: transform .12s, background .15s, box-shadow .15s, border-color .15s;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .6; cursor: not-allowed; }
.btn-primary {
  background: var(--fb-amber);
  color: var(--fb-text-on-amber);
  box-shadow: var(--shadow-amber);
}
.btn-primary:hover:not(:disabled) {
  background: var(--fb-amber-dark);
  box-shadow: 0 12px 36px rgba(248, 175, 45, 0.45);
}
.btn-ghost {
  background: var(--fb-surface); color: var(--fb-text);
  border-color: var(--fb-border-strong);
}
.btn-ghost:hover:not(:disabled) {
  border-color: var(--fb-amber);
  color: var(--fb-amber-darker);
}
.btn-test { min-width: 140px; }
.btn-whatsapp {
  background: #25D366; color: #fff;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.3);
}
.btn-whatsapp:hover:not(:disabled) { background: #1FB855; }

/* ================================================================
   TEST CARDS
   ================================================================ */
main { padding: 48px 0 64px; }

.test-card {
  background: var(--fb-surface); border: 1px solid var(--fb-border);
  border-radius: var(--radius); padding: 28px; margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .2s, border-color .2s;
}
.test-card:hover { box-shadow: var(--shadow-md); }
.test-card.is-running { border-color: var(--fb-amber); box-shadow: var(--shadow-amber); }
.test-card.is-done { border-color: var(--success); }

.test-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 24px; margin-bottom: 24px; }
.test-head > div { flex: 1; }

.test-tag {
  display: inline-block; font-family: var(--font-mono);
  font-size: 11px; font-weight: 700; letter-spacing: 0.1em;
  color: var(--fb-amber-darker); background: var(--fb-amber-light);
  padding: 4px 10px; border-radius: 6px; margin-bottom: 10px;
}
.test-head h2 { font-size: 22px; font-weight: 700; letter-spacing: -0.02em; color: var(--fb-dark); margin-bottom: 6px; }
.test-head p { font-size: 14px; color: var(--fb-text-soft); max-width: 720px; }

.metric-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 16px; }
.metric {
  padding: 14px 16px; background: var(--fb-bg-soft);
  border-radius: var(--radius-sm); border: 1px solid var(--fb-border);
}
.metric-label {
  display: block; font-size: 11px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--fb-text-muted); margin-bottom: 4px;
}
.metric-value { display: block; font-family: var(--font-mono); font-size: 18px; font-weight: 700; color: var(--fb-text); transition: color .2s; }
.metric-value.is-live { color: var(--fb-amber-darker); }
.metric-value.is-good { color: var(--success); }
.metric-value.is-warn { color: var(--warning); }
.metric-value.is-bad  { color: var(--danger); }

.progress { height: 6px; background: var(--fb-bg-muted); border-radius: 999px; overflow: hidden; margin-bottom: 12px; }
.progress-bar {
  height: 100%; width: 0;
  background: linear-gradient(90deg, var(--fb-amber), var(--fb-amber-dark));
  border-radius: 999px; transition: width .25s ease;
}

.sparkline { width: 100%; height: 80px; background: var(--fb-bg-soft); border: 1px solid var(--fb-border); border-radius: var(--radius-sm); }

.mtu-log {
  background: #1F1B2E; border-radius: var(--radius-sm);
  padding: 14px 18px; overflow-x: auto; max-height: 200px;
}
.mtu-log pre { font-family: var(--font-mono); font-size: 12px; color: #E2E8F0; line-height: 1.7; white-space: pre-wrap; }
.mtu-log .log-ok   { color: #FCD34D; }
.mtu-log .log-fail { color: #FCA5A5; }
.mtu-log .log-info { color: #C4B5FD; }

/* ================================================================
   SUMMARY & CTA
   ================================================================ */
.summary-card {
  background: linear-gradient(180deg, #fff 0%, var(--fb-amber-bg) 100%);
  border: 1px solid var(--fb-border); border-radius: var(--radius);
  padding: 28px; margin-top: 32px; box-shadow: var(--shadow-md);
}
.summary-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; gap: 12px; flex-wrap: wrap; }
.summary-head h2 { font-size: 20px; font-weight: 700; letter-spacing: -0.02em; color: var(--fb-dark); }
.summary-actions { display: flex; gap: 8px; }
.summary-body {
  font-family: var(--font-mono); font-size: 13px; line-height: 1.7;
  background: #1F1B2E; color: #E2E8F0;
  padding: 20px 24px; border-radius: var(--radius-sm);
  white-space: pre-wrap; overflow-x: auto;
}

.whatsapp-cta {
  background: linear-gradient(135deg, var(--fb-amber-bg) 0%, var(--fb-amber-light) 100%);
  border: 1px solid var(--fb-amber); border-radius: var(--radius);
  padding: 32px; margin-top: 32px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; flex-wrap: wrap;
}
.whatsapp-cta h3 { font-size: 22px; font-weight: 700; color: var(--fb-dark); margin-bottom: 6px; }
.whatsapp-cta p { font-size: 15px; color: var(--fb-text-soft); }

/* ================================================================
   FOOTER
   ================================================================ */
.site-footer {
  background: linear-gradient(135deg, var(--fb-purple-dark) 0%, var(--fb-blue-deep) 100%);
  color: #E2E1EA;
  padding: 48px 0 24px; margin-top: 48px;
}
.footer-inner {
  display: flex; justify-content: space-between; align-items: center;
  gap: 32px; flex-wrap: wrap; padding-bottom: 28px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.10);
}
.footer-brand { display: flex; align-items: center; gap: 16px; }
.footer-brand-text { display: flex; flex-direction: column; }
.footer-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 46px; height: 46px; background: var(--fb-amber);
  border-radius: 50%; font-weight: 800; font-size: 24px;
  color: var(--fb-purple-dark); font-style: italic;
}
.footer-brand strong { display: block; font-size: 15px; font-weight: 600; color: #fff; margin-bottom: 2px; }
.footer-brand span { font-size: 13px; color: #B8B5C7; }
.footer-contact {
  display: flex; flex-direction: column; align-items: flex-end;
  gap: 4px; font-size: 14px; font-family: var(--font-mono);
}
.footer-contact a:hover { color: var(--fb-amber); }
.footer-cities {
  font-size: 12px; color: #B8B5C7; margin-top: 8px;
  font-family: var(--font-sans); letter-spacing: 0.04em;
}
.footer-bottom { padding-top: 20px; font-size: 12px; color: #B8B5C7; text-align: center; }

/* ================================================================
   RESPONSIVE
   ================================================================ */
@media (max-width: 880px) {
  .hero-inner { grid-template-columns: 1fr; }
  .site-nav { gap: 16px; }
  .site-nav a:not(.nav-cta) { display: none; }
  .brand-sub { display: none; }
  .metric-row { grid-template-columns: repeat(2, 1fr); }
  .test-head { flex-direction: column; }
  .footer-contact { align-items: flex-start; }
  .whatsapp-cta { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .hero { padding: 40px 0 32px; }
  .hero-card { padding: 20px; }
  .stat { padding: 12px; }
  .stat-value { font-size: 18px; }
  .test-card { padding: 20px; }
}

@keyframes pulse-amber {
  0%, 100% { box-shadow: 0 0 0 0 var(--fb-amber-glow); }
  50%      { box-shadow: 0 0 0 8px transparent; }
}
.is-running .test-tag { animation: pulse-amber 1.5s infinite; }