/* ============================================================
   NET GUARD — design system
   Navy (security/trust) × Solar amber (energy) × Eco green
   ============================================================ */

:root {
  --navy-950: #081120;
  --navy-900: #0A1628;
  --navy-800: #10233A;
  --navy-700: #16304E;
  --navy-line: #223A58;

  --amber: #F7B32B;
  --orange: #FF8C42;
  --grad-sun: linear-gradient(135deg, #FFD166 0%, #F7B32B 45%, #FF8C42 100%);

  --green: #2EC48B;
  --wa: #25D366;

  --cloud: #F6F8FC;
  --tint: #EEF3FA;
  --white: #FFFFFF;
  --ink: #182234;
  --muted: #5B6B84;
  --muted-dark: #A8B7CE;

  --font-display: "Sora", "Segoe UI", Arial, sans-serif;
  --font-body: "Inter", "Segoe UI", Arial, sans-serif;

  --radius: 16px;
  --radius-sm: 10px;
  --shadow-card: 0 8px 30px rgba(10, 22, 40, 0.08);
  --shadow-pop: 0 18px 50px rgba(10, 22, 40, 0.16);
  --container: 1160px;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16.5px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--navy-950);
  -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3 { font-family: var(--font-display); line-height: 1.15; margin: 0 0 0.5em; }
p { margin: 0 0 1em; }
a { color: inherit; }

.container { width: min(var(--container), 92%); margin-inline: auto; }
.container-narrow { max-width: 820px; }

.ico { width: 1.15em; height: 1.15em; flex: none; }

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 200;
  background: var(--amber); color: var(--navy-900);
  padding: 10px 18px; border-radius: 0 0 10px 0; font-weight: 700; text-decoration: none;
}
.skip-link:focus { left: 0; }

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

::selection { background: var(--amber); color: var(--navy-900); }

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  font-family: var(--font-display); font-weight: 700; font-size: 15.5px;
  padding: 14px 26px; border-radius: 999px; border: 2px solid transparent;
  text-decoration: none; cursor: pointer; white-space: nowrap;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn-solar {
  background: var(--grad-sun); color: var(--navy-900);
  box-shadow: 0 8px 24px rgba(247, 179, 43, 0.35);
}
.btn-solar:hover { box-shadow: 0 12px 30px rgba(247, 179, 43, 0.5); }

.btn-wa { background: var(--wa); color: #fff; box-shadow: 0 8px 24px rgba(37, 211, 102, 0.3); }
.btn-wa:hover { background: #1fc25a; box-shadow: 0 12px 30px rgba(37, 211, 102, 0.42); }

.btn-outline { background: transparent; color: var(--navy-800); border-color: var(--navy-800); }
.btn-outline:hover { background: var(--navy-800); color: #fff; }

.btn-sm { padding: 10px 20px; font-size: 14px; }
.btn-lg { padding: 17px 34px; font-size: 17px; width: 100%; }

/* ============ TOP BAR ============ */
.topbar { background: var(--navy-950); border-bottom: 1px solid var(--navy-line); font-size: 13.5px; }
.topbar-inner {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 9px 0; color: var(--muted-dark);
}
.topbar-note { margin: 0; }
.topbar-links { display: flex; gap: 22px; }
.topbar-links a {
  display: inline-flex; align-items: center; gap: 7px;
  color: var(--muted-dark); text-decoration: none; transition: color 0.15s;
}
.topbar-links a:hover { color: var(--amber); }

/* ============ NAV ============ */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(10, 22, 40, 0.88);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.nav.is-scrolled { border-bottom-color: var(--navy-line); box-shadow: 0 8px 30px rgba(0,0,0,0.35); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 14px 0; }

.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
.brand-mark { width: 46px; height: 46px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name {
  font-family: var(--font-display); font-weight: 800; font-size: 21px;
  color: #fff; letter-spacing: 0.4px;
}
.brand-name em {
  font-style: normal;
  background: var(--grad-sun); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.brand-tag { font-size: 9.5px; font-weight: 600; letter-spacing: 3.6px; color: var(--muted-dark); margin-top: 3px; }

.nav-links { display: flex; align-items: center; gap: 30px; }
.nav-links > a:not(.btn) {
  color: #E7EDF6; text-decoration: none; font-weight: 500; font-size: 15px;
  transition: color 0.15s;
}
.nav-links > a:not(.btn):hover { color: var(--amber); }

.nav-burger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: 0; padding: 10px; cursor: pointer;
}
.nav-burger span { width: 24px; height: 2.5px; border-radius: 2px; background: #fff; transition: transform 0.2s, opacity 0.2s; }
.nav-burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.nav-burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ============ HERO ============ */
.hero { position: relative; background: var(--navy-900); overflow: hidden; padding: clamp(48px, 7vw, 90px) 0 clamp(48px, 6vw, 80px); }
.hero-glow {
  position: absolute; top: -280px; right: -180px; width: 720px; height: 720px;
  background: radial-gradient(circle, rgba(247,179,43,0.16) 0%, rgba(247,179,43,0) 65%);
  pointer-events: none;
}
.hero-grid {
  position: relative; display: grid; grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(32px, 5vw, 64px); align-items: center;
}

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-display); font-weight: 600; font-size: 13.5px; letter-spacing: 1.6px;
  text-transform: uppercase; color: var(--amber); margin-bottom: 18px;
}
.hero h1 {
  font-size: clamp(2.3rem, 4.6vw, 3.6rem); font-weight: 800; color: #fff;
  letter-spacing: -0.5px; margin-bottom: 20px;
}
.grad-text { background: var(--grad-sun); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-sub { color: var(--muted-dark); font-size: clamp(1rem, 1.4vw, 1.13rem); max-width: 54ch; margin-bottom: 30px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 28px; }

.hero-chips { list-style: none; display: flex; flex-wrap: wrap; gap: 10px 24px; margin: 0; padding: 0; }
.hero-chips li { display: inline-flex; align-items: center; gap: 8px; color: #C9D6E8; font-size: 14px; }
.hero-chips .ico { color: var(--green); }

.hero-art svg { width: 100%; height: auto; filter: drop-shadow(0 30px 60px rgba(0,0,0,0.45)); }
.art-shield { animation: floatY 5.5s ease-in-out infinite; }
.art-bolt { animation: floatY 6.5s ease-in-out 0.8s infinite; }
@keyframes floatY { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

/* stats */
.stats {
  margin-top: clamp(44px, 6vw, 72px);
  display: grid; grid-template-columns: repeat(4, 1fr);
  background: var(--navy-800); border: 1px solid var(--navy-line);
  border-radius: var(--radius); overflow: hidden;
}
.stat { padding: 26px 18px; text-align: center; }
.stat + .stat { border-left: 1px solid var(--navy-line); }
.stat strong {
  display: block; font-family: var(--font-display); font-size: clamp(1.5rem, 2.6vw, 2rem);
  font-weight: 800; background: var(--grad-sun); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.stat span { color: var(--muted-dark); font-size: 13.5px; }

/* ============ SECTIONS ============ */
.section { padding: clamp(64px, 9vw, 108px) 0; }
.section-light { background: var(--cloud); }
.section-tint { background: var(--tint); }
.section-dark { background: var(--navy-900); }

.section-head { max-width: 720px; margin: 0 auto clamp(40px, 5vw, 60px); text-align: center; }
.kicker {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-display); font-weight: 700; font-size: 13px; letter-spacing: 2.2px;
  text-transform: uppercase; color: var(--orange); margin-bottom: 12px;
}
.kicker-solar { color: var(--amber); }
.kicker-sec { color: var(--green); }
.section-head h2 { font-size: clamp(1.7rem, 3.2vw, 2.5rem); font-weight: 800; letter-spacing: -0.4px; }
.on-dark { color: #fff; }
.section-sub { color: var(--muted); font-size: 1.05rem; margin: 0 auto; max-width: 60ch; }
.on-dark-sub { color: var(--muted-dark); }

/* ============ PILLARS ============ */
.pillars { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.pillar {
  background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow-card);
  padding: 34px; display: flex; flex-direction: column; gap: 22px;
  border-top: 4px solid transparent; transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.pillar:hover { transform: translateY(-5px); box-shadow: var(--shadow-pop); }
.pillar:nth-child(1) { border-top-color: var(--amber); }
.pillar:nth-child(2) { border-top-color: var(--green); }

.pillar-head { display: flex; align-items: center; gap: 16px; }
.pillar-head h3 { font-size: 1.35rem; margin: 0; }
.pillar-head p { margin: 2px 0 0; color: var(--muted); font-size: 14px; }
.pillar-ico { width: 54px; height: 54px; padding: 13px; border-radius: 14px; flex: none; }
.pillar-solar .pillar-ico { background: rgba(247, 179, 43, 0.15); color: var(--orange); }
.pillar-sec .pillar-ico { background: rgba(46, 196, 139, 0.14); color: var(--green); }

.ticklist { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; flex: 1; }
.ticklist li { display: flex; align-items: flex-start; gap: 10px; color: var(--ink); font-size: 15.5px; }
.ticklist .ico { color: var(--green); margin-top: 3px; }
.pillar:nth-child(1) .ticklist .ico { color: var(--orange); }
.pillar .btn { align-self: flex-start; }

/* ============ CARDS ============ */
.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card {
  background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow-card);
  padding: 30px 28px; transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow-pop); }
.card h3 { font-size: 1.12rem; margin: 18px 0 8px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }

.card-ico { width: 52px; height: 52px; padding: 12px; border-radius: 13px; }
.ico-solar { background: rgba(247, 179, 43, 0.15); color: var(--orange); }
.ico-sec { background: rgba(46, 196, 139, 0.13); color: var(--green); }

.card-onDark { background: var(--navy-800); border: 1px solid var(--navy-line); box-shadow: none; }
.card-onDark h3 { color: #fff; }
.card-onDark p { color: var(--muted-dark); }
.card-onDark:hover { box-shadow: 0 18px 40px rgba(0, 0, 0, 0.4); border-color: #2E4E75; }

/* combo band */
.combo {
  margin-top: 44px; display: flex; align-items: center; justify-content: space-between; gap: 28px;
  background: linear-gradient(120deg, rgba(247,179,43,0.14), rgba(255,140,66,0.08));
  border: 1px solid rgba(247, 179, 43, 0.35);
  border-radius: var(--radius); padding: 30px 34px;
}
.combo h3 { color: #fff; font-size: 1.3rem; margin-bottom: 6px; }
.combo p { color: var(--muted-dark); margin: 0; max-width: 56ch; }
.combo .btn { flex: none; }

/* ============ ESTIMATOR ============ */
.estimator {
  margin-top: 52px; display: grid; grid-template-columns: 1.1fr 1.3fr;
  gap: clamp(28px, 4vw, 48px); align-items: center;
  background: var(--navy-900); border-radius: 22px; padding: clamp(30px, 4.5vw, 52px);
  box-shadow: var(--shadow-pop);
}
.estimator-intro h3 { display: flex; align-items: center; gap: 10px; color: #fff; font-size: 1.4rem; }
.estimator-intro h3 .ico { color: var(--amber); }
.estimator-intro > p { color: var(--muted-dark); font-size: 15px; margin-bottom: 6px; }
.estimator-bill {
  font-family: var(--font-display); font-weight: 800; font-size: clamp(2rem, 3.4vw, 2.7rem);
  background: var(--grad-sun); -webkit-background-clip: text; background-clip: text; color: transparent;
  margin: 0 0 14px;
}
.estimator-scale { display: flex; justify-content: space-between; color: var(--muted-dark); font-size: 12.5px; margin-top: 8px; }

input[type="range"] {
  width: 100%; appearance: none; -webkit-appearance: none; height: 8px; border-radius: 99px;
  background: linear-gradient(to right, var(--amber) var(--fill, 8%), var(--navy-line) var(--fill, 8%));
  outline-offset: 6px; cursor: pointer;
}
input[type="range"]::-webkit-slider-thumb {
  appearance: none; -webkit-appearance: none; width: 26px; height: 26px; border-radius: 50%;
  background: var(--grad-sun); border: 3px solid var(--navy-900);
  box-shadow: 0 4px 14px rgba(247, 179, 43, 0.55); cursor: grab;
}
input[type="range"]::-moz-range-thumb {
  width: 22px; height: 22px; border-radius: 50%;
  background: var(--amber); border: 3px solid var(--navy-900);
  box-shadow: 0 4px 14px rgba(247, 179, 43, 0.55); cursor: grab;
}

.estimator-out { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.est-box {
  background: var(--navy-800); border: 1px solid var(--navy-line);
  border-radius: var(--radius-sm); padding: 18px 20px;
}
.est-box span { display: block; color: var(--muted-dark); font-size: 13px; margin-bottom: 6px; }
.est-box strong { font-family: var(--font-display); font-size: clamp(1.25rem, 2vw, 1.55rem); font-weight: 800; color: var(--amber); }

.estimator-cta { grid-column: 1 / -1; display: flex; align-items: center; gap: 22px; flex-wrap: wrap; margin-top: 6px; }
.fineprint { color: var(--muted-dark); font-size: 12.5px; margin: 0; max-width: 52ch; }

/* ============ WHY ============ */
.why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px 30px; }
.why-item {
  background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow-card);
  padding: 26px; transition: transform 0.2s, box-shadow 0.2s;
}
.why-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-pop); }
.why-item .ico {
  width: 44px; height: 44px; padding: 10px; border-radius: 12px;
  background: var(--navy-900); color: var(--amber); margin-bottom: 14px;
}
.why-item h3 { font-size: 1.05rem; margin-bottom: 6px; }
.why-item p { margin: 0; color: var(--muted); font-size: 14.5px; }

/* ============ STEPS ============ */
.steps {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
  counter-reset: step;
}
.step {
  position: relative; background: var(--white); border-radius: var(--radius);
  box-shadow: var(--shadow-card); padding: 30px 26px 26px;
}
.step-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; border-radius: 50%;
  font-family: var(--font-display); font-weight: 800; font-size: 18px;
  background: var(--grad-sun); color: var(--navy-900); margin-bottom: 16px;
}
.step h3 { font-size: 1.08rem; margin-bottom: 6px; }
.step p { margin: 0; color: var(--muted); font-size: 14.5px; }

/* ============ TESTIMONIALS ============ */
.quote-card {
  margin: 0; background: var(--white); border-radius: var(--radius);
  box-shadow: var(--shadow-card); padding: 30px 28px;
  display: flex; flex-direction: column; gap: 16px;
}
.stars { display: flex; gap: 3px; color: var(--amber); }
.stars .ico { width: 18px; height: 18px; }
.quote-card blockquote { margin: 0; font-size: 15.5px; color: var(--ink); flex: 1; }
.quote-card figcaption strong { display: block; font-family: var(--font-display); font-size: 15px; }
.quote-card figcaption span { color: var(--muted); font-size: 13.5px; }

/* ============ FAQ ============ */
.faq-list { display: grid; gap: 14px; }
.faq-list details {
  background: var(--white); border-radius: var(--radius-sm);
  box-shadow: var(--shadow-card); padding: 0 24px; overflow: hidden;
}
.faq-list summary {
  cursor: pointer; list-style: none; position: relative;
  font-family: var(--font-display); font-weight: 700; font-size: 16px;
  padding: 20px 40px 20px 0;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  content: "+"; position: absolute; right: 2px; top: 50%; transform: translateY(-50%);
  font-size: 24px; font-weight: 600; color: var(--orange); transition: transform 0.2s;
}
.faq-list details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq-list details p { color: var(--muted); padding-bottom: 20px; margin: 0; }

/* ============ CONTACT ============ */
.section-contact { position: relative; overflow: hidden; }
.contact-glow {
  position: absolute; bottom: -320px; left: -200px; width: 760px; height: 760px;
  background: radial-gradient(circle, rgba(247,179,43,0.13) 0%, rgba(247,179,43,0) 65%);
  pointer-events: none;
}
.contact-grid { position: relative; display: grid; grid-template-columns: 1.5fr 1fr; gap: 32px; align-items: start; }

.quote-form {
  background: var(--white); border-radius: 20px; padding: clamp(28px, 3.5vw, 42px);
  box-shadow: var(--shadow-pop); display: grid; gap: 20px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.field { display: grid; gap: 7px; }
.field label { font-weight: 600; font-size: 14px; }
.field .opt { color: var(--muted); font-weight: 400; }
.field input, .field select, .field textarea {
  font: inherit; font-size: 15.5px; color: var(--ink);
  padding: 13px 15px; border: 1.5px solid #D5DEEA; border-radius: var(--radius-sm);
  background: var(--cloud); width: 100%;
  transition: border-color 0.15s, box-shadow 0.15s, background 0.15s;
}
.field textarea { resize: vertical; min-height: 84px; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--amber); background: #fff;
  box-shadow: 0 0 0 4px rgba(247, 179, 43, 0.18);
}
.field.is-invalid input { border-color: #E5484D; background: #FFF7F7; }
.field-err { display: none; color: #D93036; font-size: 13px; margin: 0; }
.field.is-invalid .field-err { display: block; }

.hp { position: absolute; left: -5000px; width: 1px; height: 1px; opacity: 0; }

.form-note { color: var(--muted); font-size: 13px; margin: 0; text-align: center; }
.form-note.is-success { color: #1B9E6B; font-weight: 600; }

.contact-side { display: grid; gap: 16px; align-content: start; }
.contact-card, .contact-hours {
  display: flex; align-items: center; gap: 16px;
  background: var(--navy-800); border: 1px solid var(--navy-line);
  border-radius: var(--radius); padding: 20px 22px; text-decoration: none;
  transition: transform 0.18s, border-color 0.18s;
}
.contact-card:hover { transform: translateY(-3px); border-color: var(--amber); }
.contact-card .ico, .contact-hours .ico {
  width: 46px; height: 46px; padding: 11px; border-radius: 12px; flex: none;
  background: rgba(247, 179, 43, 0.14); color: var(--amber);
}
.contact-card-wa .ico { background: rgba(37, 211, 102, 0.15); color: var(--wa); }
.contact-card-wa:hover { border-color: var(--wa); }
.contact-card strong, .contact-hours strong { display: block; color: #fff; font-family: var(--font-display); font-size: 15.5px; }
.contact-card span, .contact-hours span { color: var(--muted-dark); font-size: 14px; }

/* offices */
.offices-head {
  position: relative; text-align: center; color: #fff;
  font-size: 1.2rem; margin: clamp(44px, 6vw, 64px) 0 22px;
}
.offices { position: relative; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.office {
  display: flex; align-items: flex-start; gap: 15px;
  background: var(--navy-800); border: 1px solid var(--navy-line);
  border-radius: var(--radius); padding: 22px; text-decoration: none;
  transition: transform 0.18s, border-color 0.18s;
}
.office:hover { transform: translateY(-3px); border-color: var(--amber); }
.office > .ico {
  width: 42px; height: 42px; padding: 10px; border-radius: 12px; flex: none;
  background: rgba(247, 179, 43, 0.14); color: var(--amber);
}
.office-tag {
  display: block; font-family: var(--font-display); font-size: 10.5px; font-weight: 700;
  letter-spacing: 1.8px; text-transform: uppercase; color: var(--amber); margin-bottom: 5px;
}
.office-tag-branch { color: var(--green); }
.office strong { display: block; color: #fff; font-family: var(--font-display); font-size: 16px; margin-bottom: 5px; }
.office p { margin: 0; color: var(--muted-dark); font-size: 13.5px; line-height: 1.55; }

/* ============ FOOTER ============ */
.footer { background: var(--navy-950); border-top: 1px solid var(--navy-line); padding: 56px 0 0; }
.footer-grid {
  display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px;
  padding-bottom: 44px;
}
.footer-brand p { color: var(--muted-dark); font-size: 14.5px; margin: 18px 0 0; max-width: 34ch; }
.footer-cities { display: flex; align-items: center; gap: 8px; }
.footer-cities .ico { color: var(--amber); }
.footer-col h3 {
  color: #fff; font-size: 13px; font-weight: 700; letter-spacing: 1.8px;
  text-transform: uppercase; margin-bottom: 16px;
}
.footer-col a {
  display: block; color: var(--muted-dark); text-decoration: none;
  font-size: 14.5px; padding: 5px 0; transition: color 0.15s;
}
.footer-col a:hover { color: var(--amber); }
.footer-bottom {
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  border-top: 1px solid var(--navy-line); padding: 20px 0 24px;
  color: var(--muted-dark); font-size: 13.5px;
}
.footer-bottom p { margin: 0; }

/* ============ FLOATING ACTIONS ============ */
.fab-stack {
  position: fixed; right: 20px; bottom: 20px; z-index: 90;
  display: flex; flex-direction: column; gap: 14px;
}
.fab {
  display: flex; align-items: center; justify-content: center;
  width: 58px; height: 58px; border-radius: 50%;
  text-decoration: none; box-shadow: 0 10px 26px rgba(0, 0, 0, 0.35);
  transition: transform 0.18s;
}
.fab:hover { transform: scale(1.08); }
.fab .ico { width: 26px; height: 26px; }
.fab-wa { background: var(--wa); color: #fff; }
.fab-call { background: var(--grad-sun); color: var(--navy-900); }

@keyframes waPulse {
  0% { box-shadow: 0 10px 26px rgba(0,0,0,0.35), 0 0 0 0 rgba(37, 211, 102, 0.45); }
  70% { box-shadow: 0 10px 26px rgba(0,0,0,0.35), 0 0 0 16px rgba(37, 211, 102, 0); }
  100% { box-shadow: 0 10px 26px rgba(0,0,0,0.35), 0 0 0 0 rgba(37, 211, 102, 0); }
}
.fab-wa { animation: waPulse 2.6s ease-out infinite; }

/* ============ REVEAL ON SCROLL ============ */
.js .reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
.js .reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; transition: none; }
  .art-shield, .art-bolt, .fab-wa { animation: none; }
  .btn, .card, .pillar, .why-item, .contact-card, .fab { transition: none; }
}

/* ============ RESPONSIVE ============ */
@media (max-width: 1020px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-art { max-width: 520px; margin-inline: auto; }
  .pillars { grid-template-columns: 1fr; }
  .cards-3 { grid-template-columns: 1fr 1fr; }
  .why-grid { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .estimator { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .offices { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 860px) {
  .topbar-note { display: none; }
  .topbar-inner { justify-content: center; }

  .nav-burger { display: flex; }
  .nav-links {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 4px;
    background: var(--navy-900); border-bottom: 1px solid var(--navy-line);
    padding: 12px 4vw 20px; display: none;
  }
  .nav-links.is-open { display: flex; }
  .nav-links > a:not(.btn) { padding: 12px 6px; font-size: 16px; border-radius: 8px; }
  .nav-links > a:not(.btn):hover { background: var(--navy-800); }
  .nav-links .btn { margin-top: 8px; justify-content: center; }
}

@media (max-width: 640px) {
  body { font-size: 15.5px; }
  .stats { grid-template-columns: 1fr 1fr; }
  .stat:nth-child(3) { border-left: 0; }
  .stat:nth-child(1), .stat:nth-child(2) { border-bottom: 1px solid var(--navy-line); }
  .cards-3 { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .estimator-out { grid-template-columns: 1fr 1fr; }
  .combo { flex-direction: column; align-items: flex-start; }
  .hero-cta .btn { width: 100%; }
  .fab-stack { right: 14px; bottom: 14px; }
  .fab { width: 54px; height: 54px; }
}