/* ============================================
   ELITE CLINICAL RESEARCH SERVICES — STYLESHEET
   Design tokens
   ============================================ */
:root {
  /* Color */
  --c-navy: #0B2A4A;
  --c-navy-deep: #071c33;
  --c-teal: #16876B;
  --c-teal-light: #1FAE8B;
  --c-amber: #E8A33D;
  --c-paper: #F7F9FA;
  --c-paper-alt: #EFF3F5;
  --c-ink: #10202E;
  --c-slate: #5B6B7A;
  --c-line: #E1E7EA;
  --c-white: #FFFFFF;

  /* Type */
  --f-display: "Fraunces", "Georgia", serif;
  --f-body: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --f-mono: "JetBrains Mono", monospace;

  /* Layout */
  --maxw: 1240px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 10px rgba(11, 42, 74, 0.06);
  --shadow-md: 0 10px 30px rgba(11, 42, 74, 0.10);
  --shadow-lg: 0 24px 60px rgba(11, 42, 74, 0.16);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ============ RESET ============ */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--f-body);
  color: var(--c-ink);
  background: var(--c-paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: inherit; font-size: 1rem; }
h1, h2, h3, h4, h5 { font-family: var(--f-display); font-weight: 600; color: var(--c-navy); line-height: 1.15; }
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }

:focus-visible {
  outline: 2.5px solid var(--c-amber);
  outline-offset: 3px;
  border-radius: 4px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ============ PRELOADER ============ */
.preloader {
  position: fixed; inset: 0; z-index: 9999;
  background: var(--c-navy);
  display: flex; align-items: center; justify-content: center;
  transition: opacity 0.6s var(--ease), visibility 0.6s var(--ease);
}
.preloader.is-hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.preloader__mark { position: relative; width: 64px; height: 64px; }
.preloader__ring {
  position: absolute; inset: 0;
  border: 3px solid rgba(255,255,255,0.15);
  border-top-color: var(--c-amber);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}
.preloader__core {
  position: absolute; top: 50%; left: 50%;
  width: 14px; height: 14px; margin: -7px 0 0 -7px;
  background: var(--c-teal-light);
  border-radius: 50%;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 10px;
  font-weight: 600; font-size: 0.95rem;
  padding: 13px 26px;
  border-radius: 999px;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), background 0.3s var(--ease), color 0.3s var(--ease);
  white-space: nowrap;
}
.btn--primary {
  background: var(--c-teal);
  color: var(--c-white);
  box-shadow: var(--shadow-sm);
}
.btn--primary:hover {
  background: var(--c-navy);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.btn--primary i { transition: transform 0.3s var(--ease); }
.btn--primary:hover i { transform: translateX(3px); }

.btn--ghost {
  background: transparent;
  color: var(--c-navy);
  border: 1.5px solid var(--c-line);
}
.btn--ghost:hover {
  border-color: var(--c-navy);
  background: var(--c-white);
  transform: translateY(-2px);
}
.btn--lg { padding: 16px 32px; font-size: 1rem; }
.btn--block { width: 100%; }
.btn--nav { margin-left: 12px; }

/* ============ EYEBROW / HEADINGS ============ */
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--f-mono);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-teal);
  margin-bottom: 14px;
}
.eyebrow i { font-size: 0.85em; color: var(--c-amber); }

.section-head { max-width: 720px; margin-bottom: 56px; }
.section-head--inline { margin-bottom: 36px; max-width: 100%; }
.section-head h2 { font-size: clamp(1.9rem, 3.4vw, 2.6rem); margin-bottom: 16px; letter-spacing: -0.01em; }
.section-head h3 { font-size: clamp(1.4rem, 2.4vw, 1.8rem); }
.section-head__lede { color: var(--c-slate); font-size: 1.05rem; max-width: 620px; }

.section { padding: 96px 0; position: relative; }
.text-accent { color: var(--c-teal); }

/* ============ REVEAL ANIMATION ============ */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }

/* ============================================
   HEADER / NAVIGATION
   ============================================ */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(247, 249, 250, 0);
  transition: background 0.4s var(--ease), box-shadow 0.4s var(--ease), padding 0.4s var(--ease);
  padding: 22px 0;
}
.site-header.is-scrolled {
  background: rgba(247, 249, 250, 0.92);
  backdrop-filter: blur(14px) saturate(160%);
  box-shadow: var(--shadow-sm);
  padding: 12px 0;
}
.site-header__inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }

.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand__logo {
  height: 46px;
  width: auto;
  display: block;
  transition: transform 0.3s var(--ease);
}
.brand:hover .brand__logo { transform: scale(1.03); }
.brand__logo--footer { height: 40px; }

.nav__list { display: flex; align-items: center; gap: 34px; }
.nav__link {
  font-size: 0.94rem; font-weight: 500; color: var(--c-ink);
  position: relative; padding: 4px 0;
  transition: color 0.3s var(--ease);
}
.nav__link::after {
  content: ""; position: absolute; left: 0; bottom: -3px;
  width: 0; height: 2px; background: var(--c-teal);
  transition: width 0.3s var(--ease);
}
.nav__link:hover { color: var(--c-teal); }
.nav__link:hover::after { width: 100%; }

.nav-toggle {
  display: none; flex-direction: column; justify-content: center; gap: 5px;
  width: 40px; height: 40px; border-radius: 10px;
}
.nav-toggle span {
  display: block; width: 22px; height: 2px; background: var(--c-navy);
  margin: 0 auto; transition: transform 0.35s var(--ease), opacity 0.35s var(--ease);
}
.nav-toggle.is-active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-active span:nth-child(2) { opacity: 0; }
.nav-toggle.is-active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex; align-items: center;
  padding: 150px 0 80px;
  background:
    radial-gradient(circle at 85% 18%, rgba(22, 135, 107, 0.10), transparent 55%),
    radial-gradient(circle at 8% 85%, rgba(232, 163, 61, 0.10), transparent 50%),
    linear-gradient(180deg, #F7F9FA 0%, #EFF3F5 100%);
  overflow: hidden;
}
.hero__field { position: absolute; top: 50%; right: -120px; width: 560px; height: 560px; transform: translateY(-50%); opacity: 0.55; }
.hero__orbit {
  position: absolute; top: 50%; left: 50%;
  border: 1.5px solid var(--c-teal);
  border-radius: 50%;
  opacity: 0.28;
}
.hero__orbit--1 { width: 560px; height: 220px; margin: -110px 0 0 -280px; border-color: var(--c-amber); animation: orbit-rotate 26s linear infinite; }
.hero__orbit--2 { width: 560px; height: 220px; margin: -110px 0 0 -280px; transform: rotate(60deg); animation: orbit-rotate 32s linear infinite reverse; }
.hero__orbit--3 { width: 560px; height: 220px; margin: -110px 0 0 -280px; transform: rotate(120deg); border-color: var(--c-navy); animation: orbit-rotate 38s linear infinite; }
@keyframes orbit-rotate { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
.hero__dot--core {
  position: absolute; top: 50%; left: 50%;
  width: 18px; height: 18px; margin: -9px 0 0 -9px;
  background: var(--c-teal);
  border-radius: 50%;
  box-shadow: 0 0 0 8px rgba(22,135,107,0.12), 0 0 0 16px rgba(22,135,107,0.06);
}

.hero__grid {
  position: relative; z-index: 2;
  display: flex; flex-direction: column; align-items: center;
  text-align: center;
  max-width: 760px;
  margin: 0 auto;
}
.hero__title {
  font-size: clamp(2.4rem, 4.6vw, 3.6rem);
  letter-spacing: -0.015em;
  margin-bottom: 22px;
}
.hero__subtitle {
  font-size: 1.12rem; color: var(--c-slate); max-width: 600px; margin: 0 auto 36px;
}
.hero__actions { display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; margin-bottom: 0; }

.hero__scroll {
  position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  z-index: 2;
}
.hero__scroll span {
  width: 1px; height: 36px; background: var(--c-slate); opacity: 0.4;
  position: relative; overflow: hidden;
}
.hero__scroll span::after {
  content: ""; position: absolute; top: 0; left: 0; width: 100%; height: 40%;
  background: var(--c-teal);
  animation: scroll-trace 1.8s ease-in-out infinite;
}
@keyframes scroll-trace { 0% { top: -40%; } 100% { top: 100%; } }
.hero__scroll p { font-size: 0.72rem; color: var(--c-slate); letter-spacing: 0.05em; text-transform: uppercase; }

/* ============================================
   ABOUT
   ============================================ */
.about { background: var(--c-paper); }
.about__grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 28px; margin-bottom: 84px;
}
.about-card {
  background: var(--c-white);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-md);
  padding: 34px 30px;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease), border-color 0.4s var(--ease);
}
.about-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}
.about-card__icon {
  width: 52px; height: 52px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(22,135,107,0.10);
  color: var(--c-teal);
  border-radius: 14px;
  font-size: 1.3rem;
  margin-bottom: 20px;
}
.about-card h3 { font-size: 1.18rem; margin-bottom: 10px; }
.about-card p { color: var(--c-slate); font-size: 0.95rem; }

.presence {
  display: grid; grid-template-columns: 0.85fr 1.15fr;
  gap: 50px; align-items: center;
  background: var(--c-navy);
  border-radius: var(--radius-lg);
  padding: 56px;
  position: relative;
  overflow: hidden;
}
.presence::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 90% 10%, rgba(232,163,61,0.16), transparent 55%);
}
.presence__media { position: relative; z-index: 1; }
.presence__map {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: var(--radius-md);
  padding: 50px 30px;
  text-align: center;
  color: var(--c-white);
}
.presence__map i { font-size: 2.4rem; color: var(--c-teal-light); margin-bottom: 16px; }
.presence__map p { font-family: var(--f-display); font-size: 1.3rem; font-weight: 600; color: var(--c-white); margin-bottom: 4px; }
.presence__map span { font-size: 0.85rem; color: rgba(255,255,255,0.6); }

.presence__copy { position: relative; z-index: 1; color: var(--c-white); }
.presence__copy h3 { color: var(--c-white); margin-bottom: 24px; font-size: 1.5rem; }
.presence__block { margin-bottom: 22px; }
.presence__block:last-child { margin-bottom: 0; }
.presence__block h4 {
  color: var(--c-teal-light); font-size: 1rem; font-family: var(--f-body); font-weight: 700;
  display: flex; align-items: center; gap: 9px; margin-bottom: 8px;
}
.presence__block h4 i { color: var(--c-amber); }
.presence__block p { color: rgba(255,255,255,0.78); font-size: 0.94rem; }

/* ============================================
   SERVICES
   ============================================ */
.services { background: var(--c-paper-alt); }
.services__grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--c-white);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  border: 1px solid var(--c-line);
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease), border-color 0.4s var(--ease);
  position: relative;
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--c-teal);
}
.service-card__icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 50px; height: 50px;
  background: var(--c-navy);
  color: var(--c-teal-light);
  border-radius: 12px;
  font-size: 1.2rem;
  margin-bottom: 22px;
  transition: background 0.4s var(--ease), transform 0.4s var(--ease);
}
.service-card:hover .service-card__icon {
  background: var(--c-teal);
  color: var(--c-white);
  transform: rotate(-6deg) scale(1.05);
}
.service-card h3 { font-size: 1.12rem; margin-bottom: 10px; }
.service-card p { color: var(--c-slate); font-size: 0.93rem; }

/* ============================================
   WHY CHOOSE US / INFRASTRUCTURE
   ============================================ */
.why-us { background: var(--c-paper); }
.why-us__grid {
  display: grid; grid-template-columns: 0.95fr 1.05fr;
  gap: 64px; align-items: start;
}
.quality-strip { display: flex; flex-direction: column; gap: 22px; margin-top: 36px; }
.quality-strip__item { display: flex; gap: 16px; align-items: flex-start; }
.quality-strip__item i {
  flex-shrink: 0; width: 42px; height: 42px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(232,163,61,0.14); color: var(--c-amber);
  border-radius: 10px; font-size: 1.05rem;
}
.quality-strip__item h4 { font-size: 1rem; margin-bottom: 4px; }
.quality-strip__item p { font-size: 0.9rem; color: var(--c-slate); }

.infra-index__list { display: flex; flex-direction: column; }
.infra-index__item {
  display: grid; grid-template-columns: 56px 1fr;
  gap: 18px; align-items: flex-start;
  padding: 20px 0;
  border-bottom: 1px solid var(--c-line);
  transition: padding-left 0.35s var(--ease), background 0.35s var(--ease);
}
.infra-index__item:first-child { padding-top: 0; }
.infra-index__item:hover { padding-left: 10px; background: rgba(22,135,107,0.04); border-radius: 10px; }
.infra-index__num {
  font-family: var(--f-mono); font-weight: 600;
  font-size: 1.3rem; color: var(--c-teal);
  line-height: 1.4;
}
.infra-index__item h4 { font-size: 1rem; margin-bottom: 4px; }
.infra-index__item p { font-size: 0.9rem; color: var(--c-slate); }

/* ============================================
   STATS / HIGHLIGHTS
   ============================================ */
.stats {
  background: linear-gradient(135deg, var(--c-navy) 0%, var(--c-navy-deep) 100%);
  padding: 72px 0;
}
.stats__grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 32px; text-align: center;
}
.stat { display: flex; flex-direction: column; gap: 8px; position: relative; }
.stat:not(:last-child)::after {
  content: ""; position: absolute; right: -16px; top: 8px; bottom: 8px;
  width: 1px; background: rgba(255,255,255,0.12);
}
.stat__num {
  font-family: var(--f-mono); font-weight: 600;
  font-size: clamp(2.2rem, 4vw, 3rem);
  color: var(--c-amber);
  line-height: 1;
}
.stat__label { font-size: 0.85rem; color: rgba(255,255,255,0.72); font-weight: 500; }

/* ============================================
   THERAPEUTIC AREAS
   ============================================ */
.therapeutic { background: var(--c-paper-alt); }
.ta__grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.ta-card {
  background: var(--c-white);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-sm);
  padding: 24px 22px;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), border-color 0.35s var(--ease);
}
.ta-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-sm);
  border-color: var(--c-teal);
}
.ta-card i { color: var(--c-teal); font-size: 1.3rem; margin-bottom: 12px; display: block; }
.ta-card h4 { font-size: 1rem; margin-bottom: 6px; }
.ta-card p { font-size: 0.86rem; color: var(--c-slate); }

/* ============================================
   LEADERSHIP / TEAM
   ============================================ */
.team { background: var(--c-paper); }
.leaders {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 28px; margin-bottom: 70px;
}
.leader-card {
  background: var(--c-white);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-md);
  padding: 38px 34px;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.leader-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.leader-card__avatar {
  width: 64px; height: 64px;
  display: flex; align-items: center; justify-content: center;
  background: var(--c-navy); color: var(--c-teal-light);
  border-radius: 50%;
  font-size: 1.6rem;
  margin-bottom: 20px;
}
.leader-card h3 { font-size: 1.25rem; margin-bottom: 4px; }
.leader-card__role {
  font-family: var(--f-mono); font-size: 0.78rem; font-weight: 600;
  color: var(--c-teal); text-transform: uppercase; letter-spacing: 0.04em;
  margin-bottom: 14px;
}
.leader-card p:last-child { color: var(--c-slate); font-size: 0.95rem; }

.crew {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.crew-card {
  text-align: center;
  background: var(--c-white);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-md);
  padding: 30px 20px;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
}
.crew-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-sm); }
.crew-card i {
  font-size: 1.5rem; color: var(--c-amber);
  display: inline-flex; align-items: center; justify-content: center;
  width: 56px; height: 56px;
  background: rgba(232,163,61,0.10);
  border-radius: 50%;
  margin-bottom: 16px;
}
.crew-card h4 { font-size: 1rem; margin-bottom: 8px; }
.crew-card p { font-size: 0.86rem; color: var(--c-slate); }

/* ============================================
   CONTACT
   ============================================ */
.contact { background: var(--c-paper-alt); }
.contact__grid {
  display: grid; grid-template-columns: 0.85fr 1.15fr;
  gap: 64px; align-items: start;
}
.contact__list { margin-top: 32px; display: flex; flex-direction: column; gap: 22px; }
.contact__list li { display: flex; gap: 16px; align-items: flex-start; }
.contact__list i {
  flex-shrink: 0; width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  background: var(--c-white); border: 1px solid var(--c-line);
  color: var(--c-teal); border-radius: 50%;
  font-size: 1rem;
}
.contact__list span { display: block; font-size: 0.78rem; font-weight: 600; color: var(--c-slate); text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: 3px; }
.contact__list a, .contact__list p { font-size: 1rem; color: var(--c-navy); font-weight: 600; }

.contact__form {
  background: var(--c-white);
  border-radius: var(--radius-lg);
  padding: 44px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--c-line);
}
.contact__form h3 { font-size: 1.4rem; margin-bottom: 26px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-field { margin-bottom: 20px; }
.form-field label {
  display: block; font-size: 0.86rem; font-weight: 600; color: var(--c-navy);
  margin-bottom: 8px;
}
.form-field label span { color: var(--c-amber); }
.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  padding: 13px 16px;
  border: 1.5px solid var(--c-line);
  border-radius: var(--radius-sm);
  background: var(--c-paper);
  color: var(--c-ink);
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
  resize: vertical;
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--c-teal);
  box-shadow: 0 0 0 4px rgba(22,135,107,0.10);
}
.form-field.has-error input,
.form-field.has-error select,
.form-field.has-error textarea {
  border-color: #D9534F;
}
.form-error {
  display: none;
  font-size: 0.78rem; color: #D9534F; margin-top: 6px;
}
.form-field.has-error .form-error { display: block; }

.form-success {
  display: none;
  align-items: center; gap: 10px;
  margin-top: 18px;
  padding: 14px 18px;
  background: rgba(22,135,107,0.10);
  color: var(--c-teal);
  border-radius: var(--radius-sm);
  font-size: 0.92rem; font-weight: 600;
}
.form-success.is-visible { display: flex; }
.form-success--error {
  background: rgba(217,83,79,0.08);
  color: #D9534F;
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer { background: var(--c-navy-deep); color: rgba(255,255,255,0.7); padding-top: 72px; }
.site-footer__top {
  display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(255,255,255,0.10);
}
.footer-brand p { margin: 18px 0 22px; font-size: 0.9rem; max-width: 320px; color: rgba(255,255,255,0.55); }
.footer-socials { display: flex; gap: 12px; }
.footer-socials a {
  width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,0.06);
  border-radius: 50%;
  transition: background 0.3s var(--ease), transform 0.3s var(--ease);
}
.footer-socials a:hover { background: var(--c-teal); transform: translateY(-3px); }

.footer-col h5 {
  color: var(--c-white); font-family: var(--f-body); font-size: 0.88rem;
  font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em;
  margin-bottom: 20px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 12px; }
.footer-col li { font-size: 0.9rem; color: rgba(255,255,255,0.55); }
.footer-col a { transition: color 0.3s var(--ease); }
.footer-col a:hover { color: var(--c-teal-light); }

.site-footer__bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding: 24px 0; flex-wrap: wrap; gap: 10px;
  font-size: 0.82rem; color: rgba(255,255,255,0.45);
}

/* ============================================
   FLOATING WHATSAPP BUTTON
   ============================================ */
.whatsapp-float {
  position: fixed; bottom: 28px; right: 28px; z-index: 900;
  width: 58px; height: 58px;
  display: flex; align-items: center; justify-content: center;
  background: #25D366;
  color: var(--c-white);
  border-radius: 50%;
  font-size: 1.7rem;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.4);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
  animation: wa-pulse 2.6s ease-in-out infinite;
}
.whatsapp-float:hover { transform: scale(1.1); box-shadow: 0 10px 30px rgba(37, 211, 102, 0.55); }
@keyframes wa-pulse {
  0%, 100% { box-shadow: 0 8px 24px rgba(37, 211, 102, 0.4), 0 0 0 0 rgba(37,211,102,0.4); }
  50% { box-shadow: 0 8px 24px rgba(37, 211, 102, 0.4), 0 0 0 10px rgba(37,211,102,0); }
}

/* ============================================
   BACK TO TOP
   ============================================ */
.back-to-top {
  position: fixed; bottom: 28px; left: 28px; z-index: 900;
  width: 46px; height: 46px;
  display: flex; align-items: center; justify-content: center;
  background: var(--c-navy);
  color: var(--c-white);
  border-radius: 50%;
  font-size: 1rem;
  opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: opacity 0.35s var(--ease), visibility 0.35s var(--ease), transform 0.35s var(--ease), background 0.3s var(--ease);
  box-shadow: var(--shadow-sm);
}
.back-to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: var(--c-teal); }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1080px) {
  .why-us__grid { grid-template-columns: 1fr; gap: 48px; }
  .presence { grid-template-columns: 1fr; padding: 40px; }
  .contact__grid { grid-template-columns: 1fr; gap: 48px; }
}

@media (max-width: 940px) {
  .nav, .btn--nav { display: none !important; }
  .nav-toggle { display: flex; }

  .nav.is-open {
    display: flex !important; position: fixed; top: 0; right: 0; bottom: 0;
    width: min(320px, 80vw);
    background: #FFFFFF !important;
    color: #10202E;
    flex-direction: column;
    padding: 100px 32px 32px;
    box-shadow: -10px 0 40px rgba(0,0,0,0.15);
    z-index: 99999 !important;
    animation: slide-in 0.4s var(--ease);
  }
  .nav.is-open .nav__list { flex-direction: column; align-items: flex-start; gap: 22px; width: 100%; }
  .nav.is-open .nav__link { font-size: 1.05rem; color: #10202E; }
  @keyframes slide-in { from { transform: translateX(100%); } to { transform: translateX(0); } }

  .about__grid { grid-template-columns: 1fr; }
  .services__grid { grid-template-columns: repeat(2, 1fr); }
  .ta__grid { grid-template-columns: repeat(2, 1fr); }
  .leaders { grid-template-columns: 1fr; }
  .crew { grid-template-columns: repeat(2, 1fr); }
  .stats__grid { grid-template-columns: repeat(2, 1fr); gap: 40px 24px; }
  .stat:nth-child(2)::after { display: none; }
}

@media (max-width: 720px) {
  .section { padding: 72px 0; }
  .hero { padding: 130px 0 64px; min-height: auto; }
  .hero__field { opacity: 0.3; right: -200px; }
  .hero__actions { flex-direction: column; align-items: center; width: 100%; }
  .hero__actions .btn { width: 100%; max-width: 320px; }
  .form-row { grid-template-columns: 1fr; }
  .site-footer__top { grid-template-columns: 1fr 1fr; gap: 36px; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 560px) {
  .container { padding: 0 20px; }
  .brand__logo { height: 38px; }
  .services__grid, .ta__grid, .crew { grid-template-columns: 1fr; }
  .stats__grid { grid-template-columns: repeat(2, 1fr); }
  .contact__form { padding: 28px 22px; }
  .presence { padding: 28px; }
  .site-footer__top { grid-template-columns: 1fr; }
  .whatsapp-float { width: 52px; height: 52px; font-size: 1.5rem; bottom: 20px; right: 20px; }
  .back-to-top { width: 42px; height: 42px; bottom: 20px; left: 20px; }
}
/* ====================================================
   ULTIMATE MOBILE MENU FIX (OVERRIDE)
   ==================================================== */
@media (max-width: 940px) {
  header .nav,
  #primaryNav {
    display: none !important;
    position: fixed !important;
    top: 0 !important;
    right: 0 !important;
    width: 80% !important;
    max-width: 320px !important;
    height: 100vh !important;
    background-color: #FFFFFF !important;  
    z-index: 999999 !important;  
    padding: 90px 24px 32px !important;
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.25) !important;
    overflow-y: auto !important;
  }
   
  header .nav.is-open,
  #primaryNav.is-open {
    display: flex !important;
    flex-direction: column !important;
    align-items: flex-start !important;
  }

  header .nav.is-open .nav__list {
    display: flex !important;
    flex-direction: column !important;
    gap: 20px !important;
    width: 100% !important;
  }

  header .nav.is-open .nav__link {
    color: #0B2A4A !important;
    font-size: 1.1rem !important;
    font-weight: 600 !important;
    display: block !important;
    padding: 8px 0 !important;
  }
}