/* =========================================================
   LUIS GUARDELA S.A.S. — Design System v2
   Electric blue · black · refined technical aesthetic
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Archivo:wght@400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  --blue: #0057FF;
  --blue-dk: #003ACC;
  --blue-lt: #3D7CFF;
  --dark: #0A0E1A;
  --dark-2: #141A2B;
  --dark-3: #1E2637;
  --cyan: #00D4FF;
  --cyan-dk: #00A3C4;
  --white: #FFFFFF;
  --off: #F5F7FA;
  --off-2: #EDF1F7;
  --gray-lt: #E2E8F0;
  --gray: #64748B;
  --gray-dk: #1A1F2E;

  --font-display: 'Archivo', sans-serif;
  --font-body: 'Space Grotesk', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --container: 1280px;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);

  --shadow-sm: 0 2px 8px rgba(10, 14, 26, 0.06);
  --shadow-md: 0 8px 24px rgba(10, 14, 26, 0.10);
  --shadow-lg: 0 24px 60px rgba(10, 14, 26, 0.18);
  --shadow-glow: 0 0 40px rgba(0, 87, 255, 0.25);
  --shadow-glow-cyan: 0 0 40px rgba(0, 212, 255, 0.4);

  --t-fast: 180ms cubic-bezier(0.4, 0, 0.2, 1);
  --t: 280ms cubic-bezier(0.4, 0, 0.2, 1);
  --t-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--gray-dk);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--t-fast); }
button { font-family: inherit; cursor: pointer; border: 0; background: none; }
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  margin: 0;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--dark);
}
p { margin: 0 0 1em; }
ul, ol { margin: 0; padding: 0; list-style: none; }

::selection { background: var(--blue); color: var(--white); }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.container-wide {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* =========== NAVBAR =========== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(10, 14, 26, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: all var(--t);
}
.nav--scrolled {
  background: rgba(10, 14, 26, 0.95);
  border-bottom-color: rgba(0, 212, 255, 0.2);
}
.nav__inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem var(--gutter); max-width: 1440px; margin: 0 auto; gap: 2rem;
}
.nav__brand { display: flex; align-items: center; gap: 0.8rem; color: var(--white); }
.nav__brand img { height: 44px; width: auto; }
.nav__brand-text {
  font-family: var(--font-display);
  font-weight: 800; font-size: 0.95rem; letter-spacing: 0.01em;
  line-height: 1.2;
}
.nav__brand-text span {
  display: block; font-family: var(--font-mono); font-size: 0.62rem;
  font-weight: 500; color: var(--cyan); letter-spacing: 0.22em;
  text-transform: uppercase; margin-top: 2px;
}
.nav__menu {
  display: flex; align-items: center; gap: 2.25rem;
  list-style: none; margin: 0; padding: 0;
}
.nav__link {
  color: rgba(255, 255, 255, 0.75);
  font-weight: 500; font-size: 0.9rem;
  padding: 0.5rem 0; position: relative;
  letter-spacing: 0.01em;
  transition: color var(--t-fast);
}
.nav__link::after {
  content: ''; position: absolute; left: 0; bottom: -2px;
  width: 0; height: 2px; background: var(--cyan);
  transition: width var(--t);
}
.nav__link:hover, .nav__link--active { color: var(--white); }
.nav__link:hover::after, .nav__link--active::after { width: 100%; }

.nav__right { display: flex; align-items: center; gap: 1rem; }

.lang-toggle {
  display: inline-flex; gap: 0; border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 100px; overflow: hidden;
  font-family: var(--font-mono); font-size: 0.7rem; font-weight: 600;
  transition: border-color var(--t);
}
.lang-toggle:hover { border-color: rgba(0, 212, 255, 0.5); }
.lang-toggle button {
  padding: 0.45rem 0.75rem; color: rgba(255, 255, 255, 0.55);
  background: transparent; letter-spacing: 0.12em; transition: all var(--t-fast);
}
.lang-toggle button.active { background: var(--cyan); color: var(--dark); }
.lang-toggle button:hover:not(.active) { color: var(--white); }

.nav__cta {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.65rem 1.15rem; background: var(--blue); color: var(--white);
  border-radius: 100px; font-weight: 600; font-size: 0.85rem;
  transition: all var(--t-fast);
  letter-spacing: 0.01em;
  box-shadow: 0 4px 14px rgba(0, 87, 255, 0.3);
}
.nav__cta:hover { background: var(--blue-dk); transform: translateY(-1px); box-shadow: 0 8px 20px rgba(0, 87, 255, 0.5); }
.nav__cta svg { width: 14px; height: 14px; }

.nav__toggle { display: none; width: 32px; height: 32px; position: relative; }
.nav__toggle span {
  position: absolute; left: 4px; right: 4px; height: 2px;
  background: var(--white); transition: all var(--t);
}
.nav__toggle span:nth-child(1) { top: 9px; }
.nav__toggle span:nth-child(2) { top: 15px; }
.nav__toggle span:nth-child(3) { top: 21px; }
.nav--open .nav__toggle span:nth-child(1) { top: 15px; transform: rotate(45deg); }
.nav--open .nav__toggle span:nth-child(2) { opacity: 0; }
.nav--open .nav__toggle span:nth-child(3) { top: 15px; transform: rotate(-45deg); }

/* =========== TYPOGRAPHY HELPERS =========== */
.eyebrow {
  font-family: var(--font-mono); font-size: 0.72rem; font-weight: 600;
  letter-spacing: 0.22em; text-transform: uppercase; color: var(--blue);
  display: inline-flex; align-items: center; gap: 0.75rem;
  margin-bottom: 1.25rem;
}
.eyebrow::before {
  content: ''; width: 28px; height: 2px; background: var(--blue);
}
.eyebrow--cyan { color: var(--cyan); }
.eyebrow--cyan::before { background: var(--cyan); }

.section-title {
  font-size: clamp(2rem, 4.5vw, 3.6rem);
  font-weight: 800; letter-spacing: -0.03em; line-height: 1.05;
  margin-bottom: 1rem; color: var(--dark);
}
.section-title--light { color: var(--white); }
.section-title em {
  font-style: normal; color: var(--blue);
  font-family: var(--font-display); font-weight: 800;
}
.section-title--light em { color: var(--cyan); }
.section-kicker {
  font-size: clamp(1rem, 1.55vw, 1.15rem);
  color: var(--gray); font-weight: 400; max-width: 60ch;
  margin-bottom: 3rem; line-height: 1.6;
}
.section-kicker--light { color: rgba(255, 255, 255, 0.65); }

.section-header {
  position: relative; margin-bottom: 3.5rem;
  max-width: 760px;
}
.section-header__num {
  position: absolute; right: 0; top: -0.5rem;
  font-family: var(--font-display); font-weight: 900;
  font-size: clamp(4rem, 8vw, 7rem); color: var(--off-2);
  line-height: 1; letter-spacing: -0.05em;
  z-index: -1; pointer-events: none; user-select: none;
}
.section--dark .section-header__num { color: rgba(255, 255, 255, 0.04); }

/* =========== BUTTONS =========== */
.btn {
  display: inline-flex; align-items: center; gap: 0.65rem;
  padding: 0.9rem 1.75rem; font-weight: 600; font-size: 0.95rem;
  border-radius: 100px; transition: all var(--t-fast);
  letter-spacing: 0.01em; position: relative; overflow: hidden;
  font-family: var(--font-body);
}
.btn svg { transition: transform var(--t-fast); }
.btn:hover svg { transform: translateX(3px); }
.btn--primary {
  background: var(--blue); color: var(--white);
  box-shadow: 0 4px 14px rgba(0, 87, 255, 0.25);
}
.btn--primary:hover { background: var(--blue-dk); transform: translateY(-2px); box-shadow: 0 12px 30px rgba(0, 87, 255, 0.45); }
.btn--ghost { background: transparent; color: var(--white); border: 1px solid rgba(255, 255, 255, 0.25); }
.btn--ghost:hover { background: rgba(255, 255, 255, 0.08); border-color: var(--cyan); color: var(--cyan); }
.btn--cyan { background: var(--cyan); color: var(--dark); box-shadow: 0 4px 14px rgba(0, 212, 255, 0.3); }
.btn--cyan:hover { background: var(--white); transform: translateY(-2px); box-shadow: var(--shadow-glow-cyan); }

/* =========== HERO =========== */
.hero {
  position: relative; min-height: 100vh; display: flex;
  align-items: center; background: var(--dark);
  padding: 7rem 0 5rem; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(10, 14, 26, 0.88), rgba(10, 14, 26, 0.7) 50%, rgba(10, 14, 26, 0.4)),
    url('../img/hero-airport.jpg');
  background-size: cover; background-position: center 25%;
  z-index: 0;
  animation: heroZoom 20s ease-out forwards;
}
@keyframes heroZoom {
  from { transform: scale(1.1); }
  to { transform: scale(1); }
}
.hero::after {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 20% 30%, rgba(0, 87, 255, 0.3), transparent 55%),
    radial-gradient(ellipse at 85% 75%, rgba(0, 212, 255, 0.2), transparent 55%);
  z-index: 1;
}
.hero__grid {
  position: absolute; inset: 0; z-index: 1;
  background-image:
    linear-gradient(rgba(0, 212, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 255, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}
.hero__content {
  position: relative; z-index: 2; max-width: 900px;
}
.hero__badge {
  display: inline-flex; align-items: center; gap: 0.65rem;
  padding: 0.5rem 1.1rem; background: rgba(0, 212, 255, 0.08);
  border: 1px solid rgba(0, 212, 255, 0.35);
  border-radius: 100px; color: var(--cyan);
  font-family: var(--font-mono); font-size: 0.72rem; font-weight: 600;
  letter-spacing: 0.22em; text-transform: uppercase;
  margin-bottom: 2rem;
  backdrop-filter: blur(10px);
}
.hero__badge::before {
  content: ''; width: 7px; height: 7px; border-radius: 50%;
  background: var(--cyan); box-shadow: 0 0 12px var(--cyan);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse { 50% { opacity: 0.3; transform: scale(0.8); } }

.hero__title {
  font-size: clamp(2.8rem, 7.5vw, 6rem); font-weight: 900;
  color: var(--white); letter-spacing: -0.035em; line-height: 0.95;
  margin-bottom: 2rem;
}
.hero__title-line {
  display: block; opacity: 0;
  animation: heroTitleIn 0.9s cubic-bezier(0.215, 0.61, 0.355, 1) forwards;
}
.hero__title-line:nth-child(1) { animation-delay: 0.1s; }
.hero__title-line:nth-child(2) { animation-delay: 0.25s; }
@keyframes heroTitleIn {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero__title em {
  font-style: normal; color: var(--cyan); font-weight: 400;
  position: relative; display: inline-block;
  font-family: var(--font-display);
}
.hero__title em::after {
  content: ''; position: absolute; left: 0; bottom: -6px;
  width: 100%; height: 4px;
  background: linear-gradient(90deg, var(--cyan), transparent);
  animation: slideIn 1.4s cubic-bezier(0.77, 0, 0.175, 1) 0.8s both;
  transform-origin: left;
}
@keyframes slideIn { from { transform: scaleX(0); } }

.hero__lead {
  font-size: clamp(1.1rem, 1.6vw, 1.3rem);
  color: rgba(255, 255, 255, 0.78); max-width: 620px;
  margin-bottom: 2.75rem; line-height: 1.55;
  opacity: 0;
  animation: heroTitleIn 0.9s cubic-bezier(0.215, 0.61, 0.355, 1) 0.5s forwards;
}
.hero__cta {
  display: flex; flex-wrap: wrap; gap: 1rem;
  opacity: 0;
  animation: heroTitleIn 0.9s cubic-bezier(0.215, 0.61, 0.355, 1) 0.7s forwards;
}

.hero__corner {
  position: absolute; z-index: 2; pointer-events: none;
}
.hero__corner--tr {
  top: 110px; right: 40px;
  font-family: var(--font-mono); font-size: 0.68rem;
  color: rgba(0, 212, 255, 0.55); letter-spacing: 0.15em;
  text-align: right;
  opacity: 0;
  animation: heroTitleIn 1s ease-out 1.2s forwards;
}
.hero__corner--tr > div { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.35rem; justify-content: flex-end; }
.hero__corner--tr strong { color: var(--cyan); font-weight: 600; }
.hero__corner--tr::before {
  content: ''; position: absolute; top: -1rem; right: -1rem;
  width: 1px; height: 30px; background: linear-gradient(to bottom, transparent, var(--cyan));
}

.hero__cue {
  position: absolute; bottom: 2.5rem; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 0.6rem;
  color: rgba(255, 255, 255, 0.5); font-family: var(--font-mono);
  font-size: 0.7rem; letter-spacing: 0.22em; text-transform: uppercase;
  z-index: 2;
}
.hero__cue-line {
  width: 1px; height: 44px; background: linear-gradient(to bottom, var(--cyan), transparent);
  animation: cueSlide 2s ease-in-out infinite;
}
@keyframes cueSlide { 0%, 100% { opacity: 0.3; } 50% { opacity: 1; } }

/* =========== SECTIONS =========== */
.section { padding: clamp(4.5rem, 8vw, 7.5rem) 0; position: relative; }
.section--dark { background: var(--dark); color: var(--white); }
.section--alt { background: var(--off); }
.section--gradient { background: linear-gradient(180deg, var(--off) 0%, var(--white) 100%); }
.section--pattern { position: relative; }
.section--pattern::before {
  content: ''; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(0, 87, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 87, 255, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  mask-image: linear-gradient(to bottom, transparent, black 20%, black 80%, transparent);
  -webkit-mask-image: linear-gradient(to bottom, transparent, black 20%, black 80%, transparent);
}

/* =========== STATS STRIP =========== */
.stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0;
  padding: 0; background: var(--dark);
  position: relative; overflow: hidden;
}
.stats::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: linear-gradient(90deg, var(--blue), var(--cyan), var(--blue));
  background-size: 200% 100%;
  animation: statsBorder 8s linear infinite;
}
@keyframes statsBorder { to { background-position: -200% 0; } }
.stats::after {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at center, rgba(0, 87, 255, 0.15), transparent 70%);
  pointer-events: none;
}
.stat {
  padding: 3rem 2rem; border-right: 1px solid rgba(255, 255, 255, 0.06);
  text-align: left; position: relative;
  transition: background var(--t);
}
.stat:last-child { border-right: 0; }
.stat:hover { background: rgba(0, 87, 255, 0.05); }
.stat__num {
  font-family: var(--font-display); font-weight: 900;
  font-size: clamp(2.8rem, 5.5vw, 4.5rem);
  letter-spacing: -0.04em; line-height: 1;
  display: inline-block;
  background: linear-gradient(135deg, var(--cyan), var(--blue-lt));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat__label {
  font-family: var(--font-mono); font-size: 0.78rem; font-weight: 500;
  color: rgba(255, 255, 255, 0.55); letter-spacing: 0.12em;
  text-transform: uppercase; margin-top: 0.75rem;
}

/* =========== CARDS =========== */
.service-card, .sector-card, .client-card {
  background: var(--white); border: 1px solid var(--gray-lt);
  padding: 2.25rem; transition: all var(--t);
  position: relative; overflow: hidden;
  border-radius: 2px;
}
.service-card::before, .sector-card::before {
  content: ''; position: absolute; top: 0; left: 0;
  width: 4px; height: 100%; background: var(--blue);
  transition: width var(--t), opacity var(--t);
}
.service-card::after, .sector-card::after {
  content: ''; position: absolute; top: 0; right: 0;
  width: 40px; height: 40px;
  background-image: linear-gradient(135deg, transparent 45%, var(--gray-lt) 45%, var(--gray-lt) 55%, transparent 55%);
  background-size: 8px 8px;
  opacity: 0.5; transition: opacity var(--t);
}
.service-card:hover, .sector-card:hover {
  transform: translateY(-6px); box-shadow: var(--shadow-lg);
  border-color: var(--blue);
}
.service-card:hover::before, .sector-card:hover::before { width: 100%; opacity: 0.03; }
.service-card:hover::after, .sector-card:hover::after { opacity: 0.2; }

.card-num {
  font-family: var(--font-mono); font-size: 0.72rem; font-weight: 600;
  color: var(--blue); letter-spacing: 0.2em;
}
.card-icon {
  width: 60px; height: 60px;
  background: linear-gradient(135deg, rgba(0, 87, 255, 0.08), rgba(0, 212, 255, 0.05));
  color: var(--blue); border-radius: 14px; display: flex;
  align-items: center; justify-content: center;
  margin: 1.5rem 0 1.25rem;
  border: 1px solid rgba(0, 87, 255, 0.1);
  transition: all var(--t);
}
.service-card:hover .card-icon, .sector-card:hover .card-icon {
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: var(--white); border-color: transparent;
  transform: rotate(-3deg) scale(1.05);
}
.card-icon svg { width: 30px; height: 30px; }
.card-title {
  font-size: 1.25rem; font-weight: 700; color: var(--dark);
  margin-bottom: 0.65rem; letter-spacing: -0.01em;
}
.card-desc { color: var(--gray); font-size: 0.92rem; line-height: 1.6; margin: 0; }

/* =========== QUOTE SECTION =========== */
.quote-section {
  background: var(--dark); padding: 6rem 0; position: relative; overflow: hidden;
}
.quote-section::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 30% 40%, rgba(0, 87, 255, 0.2), transparent 50%),
    radial-gradient(ellipse at 70% 80%, rgba(0, 212, 255, 0.1), transparent 50%);
}
.quote-mark {
  position: absolute; top: 2rem; left: 5%;
  font-family: var(--font-display); font-weight: 900;
  font-size: 12rem; color: rgba(0, 212, 255, 0.08);
  line-height: 1; pointer-events: none; user-select: none;
}
.quote-content {
  position: relative; z-index: 2; max-width: 900px;
  margin: 0 auto; text-align: center;
}
.quote-text {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.8vw, 2.1rem);
  font-weight: 500; line-height: 1.35;
  color: var(--white); letter-spacing: -0.01em;
  margin-bottom: 2.5rem;
}
.quote-text em { color: var(--cyan); font-style: normal; font-weight: 700; }
.quote-author {
  display: flex; align-items: center; justify-content: center; gap: 1rem;
  color: rgba(255, 255, 255, 0.75);
}
.quote-author__avatar {
  width: 54px; height: 54px; border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  display: flex; align-items: center; justify-content: center;
  color: var(--white);
}
.quote-author__avatar svg { width: 26px; height: 26px; }
.quote-author__info { text-align: left; }
.quote-author__name { font-weight: 700; color: var(--white); font-size: 0.95rem; }
.quote-author__role {
  font-family: var(--font-mono); font-size: 0.7rem;
  color: var(--cyan); letter-spacing: 0.15em; text-transform: uppercase;
}

/* =========== FOOTER =========== */
.footer {
  background: var(--dark); color: rgba(255, 255, 255, 0.65);
  padding: 5rem 0 2rem; position: relative; overflow: hidden;
}
.footer::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 4px; background: linear-gradient(90deg, var(--blue), var(--cyan));
}
.footer::after {
  content: ''; position: absolute; bottom: -100px; right: -50px;
  width: 400px; height: 400px; border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 87, 255, 0.08), transparent 60%);
  pointer-events: none;
}
.footer__grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1.3fr;
  gap: 3rem; margin-bottom: 3rem;
  position: relative; z-index: 2;
}
.footer__brand img { height: 60px; margin-bottom: 1.25rem; }
.footer__brand p { color: rgba(255, 255, 255, 0.55); font-size: 0.92rem; max-width: 340px; line-height: 1.6; }
.footer__col h4 {
  color: var(--white); font-size: 0.78rem;
  letter-spacing: 0.18em; text-transform: uppercase;
  margin-bottom: 1.25rem; font-family: var(--font-mono);
  font-weight: 600;
  position: relative; padding-bottom: 0.75rem;
}
.footer__col h4::after {
  content: ''; position: absolute; left: 0; bottom: 0;
  width: 24px; height: 2px; background: var(--cyan);
}
.footer__col ul li { margin-bottom: 0.8rem; }
.footer__col a {
  color: rgba(255, 255, 255, 0.55); font-size: 0.9rem;
  transition: all var(--t-fast); position: relative;
}
.footer__col a:hover { color: var(--cyan); padding-left: 8px; }
.footer__col--contact { display: flex; flex-direction: column; gap: 1rem; }
.footer__contact-row {
  display: flex; align-items: flex-start; gap: 0.8rem;
  font-size: 0.88rem; color: rgba(255, 255, 255, 0.7); line-height: 1.5;
}
.footer__contact-row svg {
  width: 16px; height: 16px; color: var(--cyan); margin-top: 3px; flex-shrink: 0;
}
.footer__bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 2rem; border-top: 1px solid rgba(255, 255, 255, 0.07);
  font-family: var(--font-mono); font-size: 0.73rem;
  color: rgba(255, 255, 255, 0.35); letter-spacing: 0.05em;
  position: relative; z-index: 2;
}

/* =========== WHATSAPP FLOAT =========== */
.wa-float {
  position: fixed; bottom: 2rem; right: 2rem; z-index: 90;
  width: 60px; height: 60px; background: #25D366;
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  color: var(--white); box-shadow: 0 8px 28px rgba(37, 211, 102, 0.4);
  transition: all var(--t);
  animation: waEnter 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) 1s both;
}
.wa-float::before {
  content: ''; position: absolute; inset: -6px;
  border-radius: 50%; border: 2px solid #25D366;
  animation: waPing 2.5s ease-out infinite;
  opacity: 0;
}
@keyframes waPing {
  0% { transform: scale(0.85); opacity: 0; }
  30% { opacity: 1; }
  100% { transform: scale(1.4); opacity: 0; }
}
.wa-float:hover { transform: scale(1.1) rotate(-5deg); box-shadow: 0 12px 36px rgba(37, 211, 102, 0.6); }
.wa-float svg { width: 28px; height: 28px; position: relative; z-index: 2; }
@keyframes waEnter {
  from { transform: scale(0) translateY(40px); opacity: 0; }
  to { transform: scale(1) translateY(0); opacity: 1; }
}

/* =========== UTILITIES =========== */
[hidden] { display: none !important; }
.reveal {
  opacity: 0; transform: translateY(30px);
  transition: opacity 0.9s cubic-bezier(0.215, 0.61, 0.355, 1),
              transform 0.9s cubic-bezier(0.215, 0.61, 0.355, 1);
}
.reveal.in { opacity: 1; transform: translateY(0); }
.reveal:nth-child(2) { transition-delay: 0.08s; }
.reveal:nth-child(3) { transition-delay: 0.16s; }
.reveal:nth-child(4) { transition-delay: 0.24s; }
.reveal:nth-child(5) { transition-delay: 0.32s; }
.reveal:nth-child(6) { transition-delay: 0.4s; }
.reveal:nth-child(7) { transition-delay: 0.48s; }
.reveal:nth-child(8) { transition-delay: 0.56s; }

.accent-divider {
  display: inline-block; width: 40px; height: 3px;
  background: var(--blue); margin-bottom: 1.5rem;
}
.accent-divider--cyan { background: var(--cyan); }

/* =========== RESPONSIVE =========== */
@media (max-width: 960px) {
  .nav__menu { display: none; }
  .nav__toggle { display: block; }
  .nav--open .nav__menu {
    display: flex; position: absolute; top: 100%; left: 0; right: 0;
    background: var(--dark); flex-direction: column; padding: 2rem var(--gutter);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    gap: 1.25rem; align-items: flex-start;
  }
  .nav__brand-text { font-size: 0.8rem; }
  .nav__brand-text span { font-size: 0.58rem; }
  .nav__cta { display: none; }

  .hero { padding: 7rem 0 5rem; min-height: auto; }
  .hero__cue { display: none; }
  .hero__corner { display: none; }

  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat { padding: 2rem 1.5rem; border-bottom: 1px solid rgba(255, 255, 255, 0.06); }
  .stat:nth-child(2) { border-right: 0; }

  .footer__grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .footer__bottom { flex-direction: column; gap: 1rem; text-align: center; }

  .wa-float { bottom: 1.25rem; right: 1.25rem; width: 54px; height: 54px; }
  .wa-float svg { width: 24px; height: 24px; }

  .section-header__num { display: none; }
}

@media (max-width: 480px) {
  .stats { grid-template-columns: 1fr; }
  .stat { border-right: 0; }
  .quote-mark { font-size: 8rem; top: 1rem; }
}