/* =====================================================
   RevGenix RCM — Stylesheet
   Theme: Modern Dark + Emerald Green
   ===================================================== */

/* ── Custom Properties ────────────────────────────── */
:root {
  --bg-primary:    #FFFFFF;
  --bg-secondary:  #F0F5FF;
  --bg-card:       #FFFFFF;
  --bg-card-hover: #F5F8FF;
  --accent:        #F59E0B;
  --accent-dark:   #D97706;
  --accent-blue:   #1A3C6E;
  --accent-blue-light: #2563EB;
  --accent-glow:   rgba(245, 158, 11, 0.12);
  --accent-glow-lg:rgba(245, 158, 11, 0.06);
  --accent-blue-glow: rgba(37, 99, 235, 0.08);
  --text-primary:  #1E293B;
  --text-secondary:#475569;
  --text-muted:    #94A3B8;
  --border:        #CBD5E1;
  --border-accent: rgba(245, 158, 11, 0.5);
  --border-blue:   rgba(37, 99, 235, 0.25);
  --radius-sm:     6px;
  --radius-md:     12px;
  --radius-lg:     20px;
  --shadow-card:   0 2px 16px rgba(26, 60, 110, 0.08);
  --shadow-glow:   0 0 40px rgba(37, 99, 235, 0.1);
  --font-sans:     'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --transition:    0.25s ease;
  --nav-height:    80px;
}

/* ── Reset & Base ─────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.6;
  overflow-x: hidden;
}

img, svg { display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }
input, textarea, select { font: inherit; }

/* ── Utility ──────────────────────────────────────── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section-pad { padding: 96px 0; }

.text-accent { color: var(--accent); }
.text-blue { color: var(--accent-blue-light); }

.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-blue-light);
  background: var(--accent-blue-glow);
  border: 1px solid var(--border-blue);
  padding: 0.3rem 0.85rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}

.section-title {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ── Buttons ──────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  transition: all var(--transition);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: white;
  opacity: 0;
  transition: opacity var(--transition);
}

.btn:hover::after { opacity: 0.06; }
.btn:active { transform: scale(0.98); }

.btn-primary {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent));
  color: #fff;
  box-shadow: 0 0 0 0 rgba(37, 99, 235, 0);
  transition: all var(--transition), box-shadow 0.3s;
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--accent-blue-light), #FBBF24);
  box-shadow: 0 0 22px rgba(37, 99, 235, 0.45);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1.5px solid var(--border);
}

.btn-outline:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue-light);
  background: var(--accent-blue-glow);
}

.btn-full { width: 100%; justify-content: center; }

/* ── Animations ───────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes pulse-dot {
  0%, 100% { transform: scale(1); opacity: 1; }
  50%       { transform: scale(1.4); opacity: 0.6; }
}

@keyframes scroll-bounce {
  0%, 100% { transform: translateY(0); opacity: 0.8; }
  50%       { transform: translateY(8px); opacity: 0.4; }
}

@keyframes spin { to { transform: rotate(360deg); } }

.fade-in {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delay for grid children */
.services-grid .fade-in:nth-child(1) { transition-delay: 0.05s; }
.services-grid .fade-in:nth-child(2) { transition-delay: 0.1s;  }
.services-grid .fade-in:nth-child(3) { transition-delay: 0.15s; }
.services-grid .fade-in:nth-child(4) { transition-delay: 0.2s;  }
.services-grid .fade-in:nth-child(5) { transition-delay: 0.25s; }
.services-grid .fade-in:nth-child(6) { transition-delay: 0.3s;  }

.why-grid .fade-in:nth-child(1) { transition-delay: 0.05s; }
.why-grid .fade-in:nth-child(2) { transition-delay: 0.12s; }
.why-grid .fade-in:nth-child(3) { transition-delay: 0.19s; }
.why-grid .fade-in:nth-child(4) { transition-delay: 0.26s; }

/* ═══════════════════════════════════════════════════
   NAVIGATION
═══════════════════════════════════════════════════ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: transparent;
  transition: background var(--transition), border-color var(--transition), backdrop-filter var(--transition);
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--border);
  box-shadow: 0 2px 20px rgba(26, 60, 110, 0.1);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  transition: opacity var(--transition);
}

.nav-logo:hover { opacity: 0.85; }

.logo-text {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.logo-accent { color: var(--accent); }

/* Logo image in navbar */
.nav-logo img {
  height: 58px;
  width: auto;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-link {
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition), background var(--transition);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent));
  transform: translateX(-50%);
  transition: width var(--transition);
  border-radius: 2px;
}

.nav-link:hover,
.nav-link.active { color: var(--text-primary); }

.nav-link.active::after,
.nav-link:hover::after { width: 70%; }

.nav-cta-btn {
  margin-left: 0.75rem;
  padding: 0.5rem 1.25rem;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent));
  color: #fff;
  font-size: 0.875rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.nav-cta-btn:hover {
  background: linear-gradient(135deg, var(--accent-blue-light), #FBBF24);
  box-shadow: 0 0 16px rgba(37, 99, 235, 0.4);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}

.hamburger:hover { background: var(--bg-card); }

.bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.hamburger.open .bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open .bar:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open .bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ═══════════════════════════════════════════════════
   HERO
═══════════════════════════════════════════════════ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  padding: calc(var(--nav-height) + 4rem) 1.5rem 5rem;
}

/* Dot grid background */
.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle, rgba(37, 99, 235, 0.15) 1px, transparent 1px);
  background-size: 32px 32px;
  z-index: 0;
}

/* Radial blue glow */
.hero-glow {
  position: absolute;
  top: 20%;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 500px;
  background: radial-gradient(ellipse at center, rgba(37, 99, 235, 0.1) 0%, rgba(245, 158, 11, 0.04) 50%, transparent 70%);
  z-index: 0;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  animation: fadeUp 0.9s ease both;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-blue-light);
  background: var(--accent-blue-glow);
  border: 1px solid var(--border-blue);
  padding: 0.35rem 1rem;
  border-radius: 999px;
  margin-bottom: 1.75rem;
  letter-spacing: 0.03em;
}

.hero-title {
  font-size: clamp(2.25rem, 6vw, 4rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
  color: var(--text-primary);
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto 2.25rem;
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 3.5rem;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.25rem 2rem;
  max-width: 560px;
  margin: 0 auto;
  backdrop-filter: blur(6px);
}

.hero-stat {
  flex: 1;
  text-align: center;
  padding: 0 1.5rem;
}

.stat-number {
  display: block;
  font-size: 1.75rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent-blue-light), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 0.3rem;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-weight: 500;
  letter-spacing: 0.02em;
}

.hero-stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
  flex-shrink: 0;
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
}

.scroll-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent-blue-light);
  animation: scroll-bounce 1.8s ease-in-out infinite;
  box-shadow: 0 0 12px rgba(37, 99, 235, 0.4);
}

/* ═══════════════════════════════════════════════════
   SERVICES
═══════════════════════════════════════════════════ */
.services {
  background: var(--bg-secondary);
  position: relative;
}

.services::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  cursor: default;
  outline: none;
}

.service-card:hover,
.service-card:focus-visible {
  transform: translateY(-6px);
  border-color: rgba(37, 99, 235, 0.4);
  box-shadow: 0 8px 32px rgba(26, 60, 110, 0.15);
}

.card-icon-wrap {
  width: 56px;
  height: 56px;
  background: var(--accent-blue-glow);
  border: 1px solid var(--border-blue);
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  transition: background var(--transition), box-shadow var(--transition);
  flex-shrink: 0;
}

.service-card:hover .card-icon-wrap {
  background: rgba(37, 99, 235, 0.25);
  box-shadow: 0 0 16px rgba(37, 99, 235, 0.25);
}

.card-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
}

.card-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.65;
  flex: 1;
}

.card-footer {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: auto;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border);
}

.card-tag {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--accent-blue-light);
  background: var(--accent-blue-glow);
  border: 1px solid var(--border-blue);
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  letter-spacing: 0.02em;
}

/* ═══════════════════════════════════════════════════
   WHY US
═══════════════════════════════════════════════════ */
.why-us {
  position: relative;
  background: var(--bg-primary);
  overflow: hidden;
}

.why-us-bg {
  position: absolute;
  bottom: -100px;
  right: -100px;
  width: 600px;
  height: 600px;
  background: radial-gradient(ellipse at center, rgba(37, 99, 235, 0.06) 0%, transparent 65%);
  pointer-events: none;
  z-index: 0;
}

.why-us > .container { position: relative; z-index: 1; }

.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}

.why-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 2rem 1.5rem;
  text-align: center;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}

.why-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--accent-blue), var(--accent), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.why-card:hover {
  transform: translateY(-5px);
  border-color: rgba(245, 158, 11, 0.5);
  box-shadow: 0 8px 32px rgba(26, 60, 110, 0.12);
}

.why-card:hover::before { opacity: 1; }

.why-icon {
  width: 60px;
  height: 60px;
  background: var(--accent-blue-glow);
  border: 1px solid var(--border-blue);
  border-radius: 50%;
  display: grid;
  place-items: center;
  margin: 0 auto 1.25rem;
}

.why-stat {
  font-size: 2.5rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--accent-blue-light), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 0.4rem;
}

.why-label {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.why-desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.why-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem 2.5rem;
  padding: 1.75rem 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.why-bottom-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.why-bottom-item svg { flex-shrink: 0; }

/* ═══════════════════════════════════════════════════
   ABOUT
═══════════════════════════════════════════════════ */
.about {
  background: var(--bg-secondary);
  position: relative;
}

.about::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-para {
  font-size: 0.975rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 1rem;
}

.values-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  position: relative;
  overflow: hidden;
}

.values-card::after {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.06), transparent 70%);
  pointer-events: none;
}

.values-heading {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.values-list { display: flex; flex-direction: column; gap: 1.1rem; }

.value-item {
  display: flex;
  align-items: flex-start;
  gap: 0.875rem;
}

.value-icon {
  width: 30px;
  height: 30px;
  background: var(--accent-blue-glow);
  border: 1px solid var(--border-blue);
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  flex-shrink: 0;
  margin-top: 2px;
}

.value-item strong {
  display: block;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.2rem;
}

.value-item p {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* ═══════════════════════════════════════════════════
   CONTACT
═══════════════════════════════════════════════════ */
.contact {
  position: relative;
  background: var(--bg-primary);
  overflow: hidden;
}

.contact-bg {
  position: absolute;
  top: -80px;
  left: -80px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.06) 0%, transparent 65%);
  pointer-events: none;
  z-index: 0;
}

.contact > .container { position: relative; z-index: 1; }

.contact-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 2.5rem;
  align-items: start;
}

/* Form */
.contact-form-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
}

.contact-form { display: flex; flex-direction: column; gap: 1.25rem; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
}

.required { color: var(--accent-blue-light); }

.form-group input,
.form-group textarea {
  background: var(--bg-secondary);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.7rem 1rem;
  color: var(--text-primary);
  font-size: 0.9rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  resize: vertical;
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-muted); }

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.form-group input.error,
.form-group textarea.error {
  border-color: #f87171;
  box-shadow: 0 0 0 3px rgba(248, 113, 113, 0.12);
}

.field-error {
  font-size: 0.78rem;
  color: #f87171;
  min-height: 1rem;
  display: block;
}

.form-success {
  display: none;
  align-items: center;
  gap: 0.6rem;
  padding: 0.9rem 1.25rem;
  background: rgba(37, 99, 235, 0.1);
  border: 1px solid rgba(37, 99, 235, 0.3);
  border-radius: var(--radius-sm);
  color: var(--accent-blue-light);
  font-size: 0.9rem;
  font-weight: 500;
}

.form-success.visible { display: flex; }

/* Submit button loading state */
.btn[disabled] {
  opacity: 0.7;
  pointer-events: none;
}

/* Contact info */
.contact-info { display: flex; flex-direction: column; gap: 1.25rem; }

.contact-info-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.contact-info-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 0.875rem 0;
  border-bottom: 1px solid var(--border);
}

.contact-detail:last-child { border-bottom: none; }

.contact-icon {
  width: 38px;
  height: 38px;
  background: var(--accent-blue-glow);
  border: 1px solid var(--border-blue);
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.contact-detail strong {
  display: block;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.25rem;
}

.contact-detail a,
.contact-detail span {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
  transition: color var(--transition);
}

.contact-detail a:hover { color: var(--accent-blue-light); }

.contact-certifications {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.cert-badge {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--accent);
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.35);
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  letter-spacing: 0.04em;
}

/* ═══════════════════════════════════════════════════
   FOOTER
═══════════════════════════════════════════════════ */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand .nav-logo { margin-bottom: 1rem; }

.footer-tagline {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1.5rem;
  max-width: 300px;
}

.footer-socials {
  display: flex;
  gap: 0.75rem;
}

.social-link {
  width: 36px;
  height: 36px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  color: var(--text-secondary);
  transition: all var(--transition);
}

.social-link:hover {
  border-color: var(--border-blue);
  color: var(--accent-blue-light);
  background: var(--accent-blue-glow);
}

.footer-links-col h4 {
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
}

.footer-links-col ul { display: flex; flex-direction: column; gap: 0.7rem; }

.footer-links-col a {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: color var(--transition);
}

.footer-links-col a:hover { color: var(--accent-blue-light); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 1.75rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  text-align: center;
}

.footer-bottom p {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.footer-disclaimer { font-size: 0.75rem !important; max-width: 600px; }

/* ═══════════════════════════════════════════════════
   RESPONSIVE — TABLET (≤ 1024px)
═══════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .footer-brand { grid-column: 1 / -1; }
}

/* ═══════════════════════════════════════════════════
   RESPONSIVE — MOBILE (≤ 768px)
═══════════════════════════════════════════════════ */
@media (max-width: 768px) {
  :root { --nav-height: 60px; }

  .section-pad { padding: 64px 0; }

  /* Nav */
  .hamburger { display: flex; }

  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.99);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: stretch;
    padding: 1rem 1.5rem 1.5rem;
    gap: 0.25rem;
    transform: translateY(-110%);
    opacity: 0;
    transition: transform 0.35s ease, opacity 0.35s ease;
    pointer-events: none;
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .nav-link {
    padding: 0.75rem 1rem;
    font-size: 1rem;
    border-radius: var(--radius-sm);
    border-bottom: 1px solid var(--border);
  }

  .nav-link:last-of-type { border-bottom: none; }

  .nav-link::after { display: none; }

  .nav-cta-btn {
    margin-left: 0;
    margin-top: 0.5rem;
    text-align: center;
    padding: 0.75rem;
  }

  /* Hero */
  .hero { padding-top: calc(var(--nav-height) + 3rem); }
  .hero-actions { flex-direction: column; align-items: center; }
  .hero-stats {
    flex-direction: column;
    gap: 1rem;
    padding: 1.25rem;
  }
  .hero-stat-divider { width: 40px; height: 1px; }

  /* Services */
  .services-grid { grid-template-columns: 1fr; }

  /* Why Us */
  .why-grid { grid-template-columns: 1fr; gap: 1rem; }

  /* About */
  .about-grid { grid-template-columns: 1fr; gap: 2.5rem; }

  /* Contact */
  .contact-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }

  /* Footer */
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-brand { grid-column: auto; }
}

/* ═══════════════════════════════════════════════════
   RESPONSIVE — SMALL MOBILE (≤ 480px)
═══════════════════════════════════════════════════ */
@media (max-width: 480px) {
  .hero-title { font-size: 1.9rem; }
  .section-title { font-size: 1.6rem; }
  .why-stat { font-size: 2rem; }
  .contact-form-wrap { padding: 1.5rem; }
  .values-card { padding: 1.5rem; }
}

/* ── Scrollbar ────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #F0F5FF; }
::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover { background: var(--accent-blue); }

/* ── Focus visible global ─────────────────────────── */
:focus-visible {
  outline: 2px solid var(--accent-blue);
  outline-offset: 3px;
  border-radius: 4px;
}