/* ===========================================================
   Inspeção NR-13 · Rotger Engenharia
   Industrial-technical landing page
   =========================================================== */

:root {
  --ink-900: #0A1628;
  --ink-800: #0F1E33;
  --ink-700: #14283F;
  --ink-600: #1E3552;
  --ink-500: #2A4566;
  --ink-400: #4A6485;
  --ink-300: #7E94B0;
  --ink-200: #B7C5D6;
  --ink-100: #DFE5EE;
  --paper:   #F5F4F0;
  --paper-2: #ECEAE2;
  --line:    #D8D4C8;
  --line-strong: #B5B0A2;
  --accent:  #E08A1F;       /* warm amber, slightly desaturated */
  --accent-2:#C46F12;
  --accent-soft: #F4D9A7;
  --danger:  #B23A2A;
  --ok:      #1F7A3A;
  --whats:   #20A858;

  --sans: "Inter", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --maxw: 1240px;
  --gutter: clamp(20px, 4vw, 56px);
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 14px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink-900);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }

a { color: inherit; }

button { font-family: inherit; }

::selection { background: var(--ink-900); color: var(--paper); }

/* ---------- Type ---------- */
.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-400);
  font-weight: 500;
}

.eyebrow .dot {
  display: inline-block;
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  margin-right: 8px;
  vertical-align: middle;
  transform: translateY(-1px);
}

h1, h2, h3, h4 {
  font-family: var(--sans);
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--ink-900);
  text-wrap: balance;
}

h1 { font-size: clamp(2.2rem, 4.2vw, 3.6rem); line-height: 1.04; letter-spacing: -0.025em; font-weight: 600; }
h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); line-height: 1.1; }
h3 { font-size: 1.15rem; line-height: 1.25; }

p { text-wrap: pretty; }

.tag {
  display: inline-flex; align-items: center;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 8px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: rgba(255,255,255,0.5);
  color: var(--ink-600);
  font-weight: 500;
}

.tag.dark {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.18);
  color: var(--ink-100);
}

.tag.amber {
  border-color: var(--accent);
  color: var(--accent-2);
  background: rgba(224,138,31,0.07);
}

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 13px 18px;
  border-radius: var(--r-md);
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 0.94rem;
  letter-spacing: -0.005em;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition: transform .15s ease, background .15s ease, border-color .15s ease, color .15s ease;
  line-height: 1;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--ink-900);
  color: var(--paper);
}
.btn-primary:hover { background: var(--ink-700); }

.btn-accent {
  background: var(--accent);
  color: #fff;
}
.btn-accent:hover { background: var(--accent-2); }

.btn-ghost {
  background: transparent;
  color: var(--ink-900);
  border-color: var(--line-strong);
}
.btn-ghost:hover { background: var(--paper-2); }

.btn-ghost-inv {
  background: transparent;
  color: var(--paper);
  border-color: rgba(255,255,255,0.25);
}
.btn-ghost-inv:hover { background: rgba(255,255,255,0.06); }

.btn-whats {
  background: var(--whats);
  color: #fff;
}
.btn-whats:hover { background: #178a48; }

.btn-sm { padding: 9px 13px; font-size: 0.85rem; }

.btn .arrow { display: inline-block; transition: transform .15s ease; }
.btn:hover .arrow { transform: translateX(2px); }

/* ---------- Top bar ---------- */
.topbar {
  background: var(--ink-900);
  color: var(--ink-100);
  font-size: 13px;
}
.topbar-inner {
  display: flex; align-items: center; gap: 24px;
  padding: 9px var(--gutter);
  max-width: var(--maxw); margin: 0 auto;
}
.topbar-msg {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--ink-200);
  flex: 1;
}
.topbar-msg .pulse {
  width: 7px; height: 7px; border-radius: 50%;
  background: #46d27a;
  box-shadow: 0 0 0 0 rgba(70,210,122,0.6);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(70,210,122,0.5); }
  70%  { box-shadow: 0 0 0 6px rgba(70,210,122,0); }
  100% { box-shadow: 0 0 0 0 rgba(70,210,122,0); }
}
.topbar a {
  color: var(--ink-100);
  text-decoration: none;
  display: inline-flex; align-items: center; gap: 6px;
}
.topbar a:hover { color: #fff; }
.topbar .sep {
  width: 1px; height: 14px; background: rgba(255,255,255,0.15);
}
.topbar .whats-mini {
  background: var(--whats);
  color: #fff;
  padding: 5px 11px;
  border-radius: 4px;
  font-weight: 600;
  font-size: 12px;
}
.topbar .whats-mini:hover { background: #178a48; color: #fff; }

@media (max-width: 880px) {
  .topbar-msg { display: none; }
}

/* ---------- Header ---------- */
.header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(245, 244, 240, 0.92);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px var(--gutter);
  max-width: var(--maxw); margin: 0 auto;
  gap: 20px;
}
.logo {
  display: flex; align-items: center; gap: 12px;
  text-decoration: none; color: var(--ink-900);
  font-weight: 700;
  letter-spacing: -0.02em;
}
.logo-img {
  height: 48px;
  width: auto;
  display: block;
}
.logo-divider {
  width: 1px;
  height: 28px;
  background: var(--line-strong);
}
.logo-mark {
  width: 32px; height: 32px;
  border: 1.5px solid var(--ink-900);
  border-radius: 6px;
  display: grid; place-items: center;
  font-family: var(--mono); font-weight: 700; font-size: 12px;
  background: var(--ink-900); color: var(--paper);
  letter-spacing: -0.02em;
}
@media (max-width: 480px) {
  .logo-divider, .logo-text { display: none; }
  .logo-img { height: 42px; }
}
.logo-text { display: flex; flex-direction: column; line-height: 1.05; }
.logo-text .l1 { font-size: 14px; font-weight: 600; }
.logo-text .l2 {
  font-family: var(--mono);
  font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--ink-400); font-weight: 500;
}

.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
  padding: 8px 12px;
  text-decoration: none;
  color: var(--ink-700);
  font-size: 14px;
  font-weight: 500;
  border-radius: 6px;
}
.nav a:hover { background: var(--paper-2); color: var(--ink-900); }

.header-cta { display: flex; align-items: center; gap: 10px; }

.menu-toggle { display: none; }

@media (max-width: 1040px) {
  .nav { display: none; }
  .header-inner { gap: 12px; }
  .menu-toggle {
    display: inline-flex; align-items: center; justify-content: center;
    width: 40px; height: 40px;
    border: 1px solid var(--line-strong);
    background: transparent; border-radius: 8px;
    cursor: pointer;
  }
  .menu-toggle span, .menu-toggle span::before, .menu-toggle span::after {
    content: ""; display: block; width: 16px; height: 1.5px; background: var(--ink-900);
    position: relative;
  }
  .menu-toggle span::before { position: absolute; top: -5px; left: 0; }
  .menu-toggle span::after  { position: absolute; top:  5px; left: 0; }

  .nav.open {
    display: flex; flex-direction: column;
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    padding: 12px var(--gutter) 18px;
    align-items: stretch; gap: 2px;
  }
  .nav.open a {
    padding: 10px 12px;
    border-bottom: 1px solid var(--line);
    border-radius: 0;
  }
  .nav.open a:last-child { border-bottom: 0; }
}
@media (max-width: 560px) {
  .header-cta .btn-accent .label-long { display: none; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background: var(--ink-900);
  color: var(--paper);
  overflow: hidden;
  border-bottom: 1px solid var(--ink-700);
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 70% at 70% 30%, #000 30%, transparent 75%);
  pointer-events: none;
}
.hero::after {
  content:""; position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 50% at 85% 20%, rgba(224,138,31,0.18), transparent 60%);
  pointer-events: none;
}
.hero-inner {
  position: relative; z-index: 1;
  max-width: var(--maxw); margin: 0 auto;
  padding: clamp(56px, 8vw, 110px) var(--gutter) clamp(48px, 6vw, 80px);
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 56px;
  align-items: center;
}
@media (max-width: 980px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
}

.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-100);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  padding: 7px 12px;
  border-radius: 999px;
  margin-bottom: 26px;
}
.hero-eyebrow .dot {
  width: 6px; height: 6px; border-radius: 50%; background: var(--accent);
}

.hero h1 {
  color: var(--paper);
  font-weight: 600;
}
.hero h1 .accent {
  color: var(--accent);
  font-style: normal;
}

.hero-sub {
  margin-top: 22px;
  font-size: clamp(1rem, 1.2vw, 1.1rem);
  color: var(--ink-200);
  max-width: 56ch;
  line-height: 1.6;
}

.hero-ctas {
  margin-top: 34px;
  display: flex; flex-wrap: wrap; gap: 12px;
}

.trust-grid {
  margin-top: 44px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}
.trust-card {
  padding: 14px;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--r-md);
  background: rgba(255,255,255,0.03);
}
.trust-card .num {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-300);
  letter-spacing: 0.12em;
  display: block;
  margin-bottom: 8px;
}
.trust-card .lbl {
  font-size: 13.5px;
  color: var(--paper);
  font-weight: 500;
  line-height: 1.3;
}
@media (max-width: 720px) {
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
}

/* Hero spec panel (right column) */
.spec-panel {
  position: relative;
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.02));
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 16px;
  padding: 22px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-100);
  box-shadow: 0 30px 60px -30px rgba(0,0,0,0.6);
}
.spec-panel::before {
  content: "";
  position: absolute; top: -1px; left: 24px; right: 24px; height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}
.spec-head {
  display: flex; justify-content: space-between; align-items: center;
  padding-bottom: 14px;
  border-bottom: 1px dashed rgba(255,255,255,0.15);
  margin-bottom: 16px;
}
.spec-head .id { color: var(--ink-300); letter-spacing: 0.1em; }
.spec-head .live {
  color: #4ade80;
  display: inline-flex; align-items: center; gap: 6px;
}
.spec-head .live::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%; background: #4ade80;
  box-shadow: 0 0 8px #4ade80;
}
.spec-row {
  display: grid;
  grid-template-columns: 1fr auto;
  padding: 9px 0;
  border-bottom: 1px dashed rgba(255,255,255,0.08);
  gap: 12px;
}
.spec-row:last-child { border-bottom: 0; }
.spec-row .k { color: var(--ink-300); letter-spacing: 0.05em; }
.spec-row .v { color: var(--paper); font-weight: 500; }
.spec-row .v.amber { color: var(--accent); }

.spec-foot {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed rgba(255,255,255,0.15);
  display: flex; justify-content: space-between;
  color: var(--ink-300);
  font-size: 11px;
  letter-spacing: 0.08em;
}

/* About section photo */
.about-photo {
  margin: 22px 0 0;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--ink-900);
}
.about-photo img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
}
.about-photo figcaption {
  padding: 12px 14px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--ink-500);
  background: rgba(255,255,255,0.5);
  border-top: 1px solid var(--line);
}

/* ---------- Section primitives ---------- */
.section {
  padding: clamp(64px, 8vw, 112px) 0;
  position: relative;
}
.section.dark {
  background: var(--ink-900);
  color: var(--paper);
}
.section.dark h2 { color: var(--paper); }

.section-head {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
  margin-bottom: 48px;
  align-items: end;
}
@media (max-width: 820px) {
  .section-head { grid-template-columns: 1fr; gap: 16px; margin-bottom: 36px; }
}
.section-head .lead p {
  color: var(--ink-500);
  font-size: 1.05rem;
  margin: 0;
  max-width: 60ch;
}
.section.dark .section-head .lead p { color: var(--ink-200); }

.section-head .label-block { display: flex; flex-direction: column; gap: 14px; }

/* ---------- Pain section ---------- */
.pain {
  background: var(--paper);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.pain-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 48px;
  align-items: start;
}
@media (max-width: 880px) {
  .pain-grid { grid-template-columns: 1fr; gap: 28px; }
}
.pain-text p {
  font-size: 1.02rem; color: var(--ink-600); margin: 0 0 18px 0;
  max-width: 56ch;
}
.pain-list {
  list-style: none;
  padding: 0; margin: 0;
  border-top: 1px solid var(--line);
}
.pain-list li {
  padding: 16px 4px 16px 36px;
  border-bottom: 1px solid var(--line);
  position: relative;
  font-size: 0.97rem;
  color: var(--ink-700);
  display: flex; align-items: center; gap: 12px;
}
.pain-list li::before {
  content: "";
  position: absolute; left: 4px; top: 50%; transform: translateY(-50%);
  width: 16px; height: 16px;
  border: 1.5px solid var(--accent);
  border-radius: 4px;
  background:
    linear-gradient(45deg, transparent 46%, var(--accent) 46% 54%, transparent 54%),
    linear-gradient(-45deg, transparent 46%, var(--accent) 46% 54%, transparent 54%);
}
.pain-list li .num {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-300);
  letter-spacing: 0.1em;
  margin-left: auto;
}

/* ---------- Services grid ---------- */
.services {
  background: var(--ink-900);
  color: var(--paper);
}
.services .section-head .lead p { color: var(--ink-200); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--r-md);
  overflow: hidden;
}
@media (max-width: 880px) { .services-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .services-grid { grid-template-columns: 1fr; } }

.svc-card {
  background: var(--ink-900);
  padding: 26px 24px 22px;
  display: flex; flex-direction: column; gap: 14px;
  position: relative;
  transition: background .2s ease;
  min-height: 220px;
}
.svc-card:hover { background: var(--ink-800); }
.svc-card .icon {
  width: 38px; height: 38px;
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 8px;
  display: grid; place-items: center;
  color: var(--accent);
}
.svc-card h3 {
  color: var(--paper);
  font-size: 1.02rem; font-weight: 600;
  margin: 0;
}
.svc-card .desc {
  color: var(--ink-200);
  font-size: 0.9rem;
  line-height: 1.5;
  margin: 0;
  flex: 1;
}
.svc-card .mini-cta {
  margin-top: 4px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  text-decoration: none;
  display: inline-flex; align-items: center; gap: 6px;
  align-self: flex-start;
}
.svc-card .mini-cta:hover { color: #fff; }
.svc-card .mini-cta .arrow { transition: transform .15s ease; }
.svc-card .mini-cta:hover .arrow { transform: translateX(3px); }

.svc-card .tagline {
  position: absolute;
  top: 18px; right: 20px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-300);
  letter-spacing: 0.1em;
}

/* ---------- About NR-13 (didactic) ---------- */
.about {
  background: var(--paper-2);
  border-top: 1px solid var(--line);
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 56px;
}
@media (max-width: 980px) {
  .about-grid { grid-template-columns: 1fr; gap: 32px; }
}
.about-intro p {
  color: var(--ink-600);
  font-size: 1.02rem;
  margin: 14px 0 0;
}
.about-callout {
  margin-top: 24px;
  padding: 20px;
  border: 1px solid var(--line-strong);
  background: rgba(255,255,255,0.5);
  border-radius: var(--r-md);
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--ink-700);
}
.about-callout b { color: var(--ink-900); }

.about-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
@media (max-width: 700px) { .about-list { grid-template-columns: 1fr; } }
.about-item {
  background: var(--paper);
  padding: 24px;
}
.about-item .num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--accent-2);
  display: block;
  margin-bottom: 10px;
}
.about-item h3 { margin: 0 0 8px 0; font-size: 1.04rem; font-weight: 600; }
.about-item p { margin: 0; font-size: 0.93rem; color: var(--ink-600); line-height: 1.55; }

/* ---------- Calculator ---------- */
.calc {
  background: var(--ink-900);
  color: var(--paper);
  position: relative;
  overflow: hidden;
}
.calc::before {
  content:""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 80% at 20% 0%, #000, transparent 70%);
}
.calc-wrap {
  position: relative; z-index: 1;
  display: grid;
  grid-template-columns: 0.9fr 1.4fr;
  gap: 56px;
  align-items: start;
}
@media (max-width: 980px) {
  .calc-wrap { grid-template-columns: 1fr; gap: 36px; }
}

.calc-intro h2 { color: var(--paper); }
.calc-intro p { color: var(--ink-200); margin-top: 18px; max-width: 50ch; }
.calc-intro .calc-aux {
  margin-top: 28px;
  display: grid; gap: 16px;
}
.calc-aux .aux-row {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-200);
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 16px;
  padding: 12px 0;
  border-top: 1px dashed rgba(255,255,255,0.18);
}
.calc-aux .aux-row:last-child { border-bottom: 1px dashed rgba(255,255,255,0.18); }
.calc-aux .aux-row .k { color: var(--accent); letter-spacing: 0.08em; }

.calc-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 16px;
  padding: 28px;
  position: relative;
}
.calc-card-head {
  display: flex; justify-content: space-between; align-items: center;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  margin-bottom: 22px;
}
.calc-card-head .id {
  font-family: var(--mono);
  font-size: 11px; letter-spacing: 0.12em;
  color: var(--ink-300);
  text-transform: uppercase;
}
.calc-card-head .ind {
  font-family: var(--mono); font-size: 11px;
  color: #4ade80;
  display: inline-flex; align-items: center; gap: 8px;
}
.calc-card-head .ind::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%; background: #4ade80;
  box-shadow: 0 0 6px #4ade80;
}

.form-group { display: flex; flex-direction: column; gap: 8px; margin-bottom: 18px; }
.form-group.full { width: 100%; }
.form-group label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-200);
  font-weight: 500;
}
.form-group input,
.form-group select {
  width: 100%;
  padding: 13px 14px;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.18);
  background: rgba(0,0,0,0.25);
  color: var(--paper);
  font-size: 0.97rem;
  font-family: var(--sans);
  outline: none;
  transition: border-color .15s ease, background .15s ease;
  appearance: none;
  -webkit-appearance: none;
}
.form-group select {
  background-image:
    linear-gradient(45deg, transparent 50%, var(--ink-200) 50%),
    linear-gradient(135deg, var(--ink-200) 50%, transparent 50%);
  background-position: calc(100% - 18px) 18px, calc(100% - 13px) 18px;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  padding-right: 36px;
}
.form-group input:focus,
.form-group select:focus {
  border-color: var(--accent);
  background: rgba(0,0,0,0.4);
}
.form-group input::placeholder { color: var(--ink-300); }

.form-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.5fr 1fr;
  gap: 14px;
}
@media (max-width: 720px) {
  .form-grid { grid-template-columns: 1fr 1fr; }
}

.calc-actions {
  display: flex; gap: 10px; flex-wrap: wrap;
  margin-top: 6px;
}
.calc-actions .btn { flex: 0 0 auto; }
.calc-actions .btn.btn-accent { padding: 14px 20px; }

.calc-error {
  margin-top: 18px;
  padding: 14px 16px;
  border: 1px solid rgba(239,68,68,0.4);
  background: rgba(239,68,68,0.12);
  color: #fecaca;
  border-radius: 8px;
  font-size: 14px;
}

.calc-result {
  margin-top: 22px;
  padding: 24px;
  background: rgba(0,0,0,0.3);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 14px;
}
.result-main {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  padding-bottom: 18px;
  border-bottom: 1px dashed rgba(255,255,255,0.15);
  margin-bottom: 18px;
}
@media (max-width: 600px) { .result-main { grid-template-columns: 1fr; } }
.result-main .cell {
  padding: 16px;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 10px;
  background: rgba(255,255,255,0.03);
}
.result-main .cell .lbl {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-300);
  display: block;
  margin-bottom: 8px;
}
.result-main .cell .val {
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--paper);
  letter-spacing: -0.01em;
}
.result-main .cell.accent .val { color: var(--accent); }

.result-details {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 18px;
}
@media (max-width: 600px) { .result-details { grid-template-columns: 1fr; } }
.result-details .d {
  padding: 12px 14px;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  background: rgba(255,255,255,0.02);
}
.result-details .d small {
  display: block;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-300);
  margin-bottom: 6px;
}
.result-details .d b {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--paper);
  font-weight: 600;
}

.calculation-steps {
  padding: 18px;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  background: rgba(0,0,0,0.25);
  font-size: 13.5px;
  color: var(--ink-100);
  margin-bottom: 18px;
}
.calculation-steps h3 {
  margin: 0 0 10px 0;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}
.calculation-steps ol { margin: 0; padding-left: 20px; }
.calculation-steps li { margin-bottom: 6px; line-height: 1.5; }
.calculation-steps strong { color: var(--paper); }

.calc-disclaimer {
  margin-top: 16px;
  font-family: var(--mono);
  font-size: 11.5px;
  line-height: 1.6;
  color: var(--ink-300);
}

/* ---------- Coverage ---------- */
.coverage {
  background: var(--paper);
  border-top: 1px solid var(--line);
}
.coverage-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 24px;
}
@media (max-width: 820px) { .coverage-grid { grid-template-columns: 1fr; } }
.unit-card {
  background: #fff;
  border: 1px solid var(--line);
  padding: 28px;
  border-radius: var(--r-md);
  position: relative;
}
.unit-card .badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-400);
  margin-bottom: 14px;
}
.unit-card h3 { margin: 0 0 8px 0; font-size: 1.1rem; }
.unit-card .addr { color: var(--ink-600); font-size: 0.95rem; margin: 0; line-height: 1.55; }
.unit-card .meta {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px dashed var(--line-strong);
  display: grid; grid-template-columns: 1fr 1fr; gap: 8px;
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--ink-500);
}
.unit-card .meta b { color: var(--ink-900); }

.coverage-strip {
  margin-top: 32px;
  padding: 22px 24px;
  background: var(--ink-900);
  color: var(--paper);
  border-radius: var(--r-md);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: center;
}
@media (max-width: 720px) { .coverage-strip { grid-template-columns: 1fr; } }
.coverage-strip h3 { color: var(--paper); margin: 0 0 4px 0; }
.coverage-strip p { color: var(--ink-200); margin: 0; font-size: 0.94rem; }

/* ---------- FAQ ---------- */
.faq { background: var(--paper-2); border-top: 1px solid var(--line); }
.faq-list { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r-md); overflow: hidden; }
.faq-item { background: var(--paper); }
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 22px 24px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px;
  font-weight: 500;
  font-size: 1rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  font-family: var(--mono);
  font-size: 22px;
  color: var(--accent);
  transition: transform .2s ease;
  line-height: 1;
}
.faq-item[open] summary::after { content: "−"; }
.faq-item .a {
  padding: 0 24px 24px;
  color: var(--ink-600);
  font-size: 0.97rem;
  line-height: 1.6;
  max-width: 75ch;
}
.faq-item .a p { margin: 0 0 10px 0; }

/* ---------- Final CTA ---------- */
.cta {
  background: var(--ink-900);
  color: var(--paper);
  position: relative;
  overflow: hidden;
}
.cta::before {
  content:""; position: absolute; inset: 0;
  background: radial-gradient(circle at 20% 50%, rgba(224,138,31,0.15), transparent 50%);
}
.cta-inner {
  position: relative; z-index: 1;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 48px;
  align-items: center;
}
@media (max-width: 880px) { .cta-inner { grid-template-columns: 1fr; gap: 28px; } }
.cta h2 { color: var(--paper); font-size: clamp(1.9rem, 3.4vw, 2.8rem); }
.cta p { color: var(--ink-200); max-width: 50ch; margin-top: 14px; }
.cta-actions { display: flex; flex-direction: column; gap: 10px; }
.cta-actions .btn { justify-content: center; padding: 16px 18px; }

/* ---------- Footer ---------- */
footer {
  background: #06101D;
  color: var(--ink-200);
  padding: 56px 0 28px;
  border-top: 1px solid #0c1c2e;
}
footer .f-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 36px;
  margin-bottom: 40px;
}
@media (max-width: 820px) {
  footer .f-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
}
@media (max-width: 520px) {
  footer .f-grid { grid-template-columns: 1fr; }
}
footer h4 {
  font-family: var(--mono);
  font-size: 11px; letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-300);
  margin: 0 0 16px 0;
  font-weight: 500;
}
footer .f-col p { font-size: 13.5px; color: var(--ink-300); margin: 0 0 8px 0; line-height: 1.6; }
footer .f-col a { color: var(--ink-100); text-decoration: none; font-size: 13.5px; display: block; padding: 4px 0; }
footer .f-col a:hover { color: var(--accent); }

footer .legal {
  border-top: 1px solid #0c1c2e;
  padding-top: 22px;
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ink-400);
}

/* Floating WhatsApp */
.fab {
  position: fixed; bottom: 22px; right: 22px;
  width: 58px; height: 58px;
  border-radius: 50%;
  background: var(--whats);
  color: #fff;
  display: grid; place-items: center;
  box-shadow: 0 12px 28px rgba(32,168,88,0.4);
  z-index: 60;
  text-decoration: none;
  transition: transform .15s ease;
}
.fab:hover { transform: scale(1.05); }
.fab svg { width: 28px; height: 28px; }