/* ============================================
   P3 Smart Solutions — Main Stylesheet
   Theme: Industry 4.0 / IoT / Smart City
   ============================================ */

/* ---------- Google Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

/* ---------- CSS Variables ---------- */
:root {
  --primary:        #00D4FF;
  --primary-dark:   #0099CC;
  --accent:         #00FF94;
  --accent-warm:    #FF6B35;
  --bg-dark:        #0A0E1A;
  --bg-card:        #111827;
  --bg-card-hover:  #1a2332;
  --surface:        #151C2C;
  --border:         rgba(0, 212, 255, 0.12);
  --border-hover:   rgba(0, 212, 255, 0.3);
  --text:           #E2E8F0;
  --text-muted:     #8892A8;
  --text-heading:   #FFFFFF;
  --gradient-primary: linear-gradient(135deg, #00D4FF 0%, #00FF94 100%);
  --gradient-hero:  linear-gradient(160deg, #0A0E1A 0%, #0d1525 40%, #0f1a30 100%);
  --shadow-glow:    0 0 30px rgba(0, 212, 255, 0.15);
  --shadow-card:    0 4px 24px rgba(0, 0, 0, 0.3);
  --radius:         12px;
  --radius-lg:      20px;
  --transition:     0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --font-body:      'Outfit', sans-serif;
  --font-mono:      'JetBrains Mono', monospace;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  background: var(--bg-dark);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent); }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

/* ---------- Utility ---------- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 100px 0; }
.section-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 12px;
  display: block;
}
.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--text-heading);
  line-height: 1.2;
  margin-bottom: 20px;
}
.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 640px;
  margin-bottom: 50px;
}
.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.3px;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  position: relative;
  overflow: hidden;
}
.btn-primary {
  background: var(--gradient-primary);
  color: var(--bg-dark);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 212, 255, 0.35);
  color: var(--bg-dark);
}
.btn-outline {
  background: transparent;
  border: 1.5px solid var(--primary);
  color: var(--primary);
}
.btn-outline:hover {
  background: rgba(0, 212, 255, 0.08);
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}
.btn svg { width: 18px; height: 18px; }

/* ---------- Circuit Background Pattern ---------- */
.circuit-bg {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(0,212,255,0.04) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(0,255,148,0.03) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}
.circuit-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,212,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,212,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

/* ---------- Header / Navbar ---------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 16px 0;
  transition: all var(--transition);
}
.header.scrolled {
  background: rgba(10, 14, 26, 0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 10px 0;
}
.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-heading);
}
.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: var(--bg-dark);
  font-size: 0.9rem;
}
.logo span { color: var(--primary); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav-links a {
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
  padding: 4px 0;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  border-radius: 2px;
  transition: width var(--transition);
}
.nav-links a:hover,
.nav-links a.active { color: var(--text-heading); }
.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }

/* Mobile menu toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.3s;
}
.nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ---------- Hero ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  background: var(--gradient-hero);
  overflow: hidden;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}
.hero-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.hero-label::before {
  content: '';
  width: 30px;
  height: 1px;
  background: var(--primary);
}
.hero h1 {
  font-size: clamp(2.5rem, 5.5vw, 4.2rem);
  font-weight: 800;
  line-height: 1.1;
  color: var(--text-heading);
  margin-bottom: 24px;
}
.hero p {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 540px;
  margin-bottom: 40px;
  line-height: 1.8;
}
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; }

/* Hero floating nodes decoration */
.hero-visual {
  position: absolute;
  right: -5%;
  top: 50%;
  transform: translateY(-50%);
  width: 50%;
  height: 80%;
  z-index: 1;
  opacity: 0.5;
}
.node {
  position: absolute;
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
  animation: pulse 3s ease-in-out infinite;
}
.node::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 24px;
  height: 24px;
  border: 1px solid rgba(0,212,255,0.2);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}
.node:nth-child(1) { top: 20%; left: 30%; animation-delay: 0s; }
.node:nth-child(2) { top: 45%; left: 60%; animation-delay: 0.5s; }
.node:nth-child(3) { top: 70%; left: 25%; animation-delay: 1s; }
.node:nth-child(4) { top: 35%; left: 80%; animation-delay: 1.5s; }
.node:nth-child(5) { top: 65%; left: 70%; animation-delay: 0.7s; }
.node:nth-child(6) { top: 15%; left: 55%; animation-delay: 1.2s; }

@keyframes pulse {
  0%, 100% { opacity: 0.4; transform: scale(1); }
  50%      { opacity: 1;   transform: scale(1.4); }
}

/* Connecting lines between nodes */
.hero-visual svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.hero-visual svg line {
  stroke: rgba(0,212,255,0.08);
  stroke-width: 1;
}

/* Hero stats bar */
.hero-stats {
  display: flex;
  gap: 48px;
  margin-top: 60px;
  padding-top: 30px;
  border-top: 1px solid var(--border);
}
.hero-stat-number {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
}
.hero-stat-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ---------- Services Grid ---------- */
.services-section { position: relative; background: var(--surface); }
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}
.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition);
}
.service-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}
.service-card:hover::before { opacity: 1; }
.service-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: rgba(0,212,255,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: var(--primary);
  font-size: 1.5rem;
}
.service-card h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-heading);
  margin-bottom: 12px;
}
.service-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}
.service-card .learn-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 20px;
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--primary);
}
.service-card .learn-more svg { width: 16px; height: 16px; transition: transform var(--transition); }
.service-card:hover .learn-more svg { transform: translateX(4px); }

/* ---------- About / Why Choose Us ---------- */
.about-section { position: relative; }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.about-visual {
  position: relative;
  height: 450px;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  overflow: hidden;
}
.about-visual-inner {
  position: absolute;
  inset: 20px;
  border-radius: var(--radius);
  background: 
    radial-gradient(ellipse at 30% 40%, rgba(0,212,255,0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 70% 70%, rgba(0,255,148,0.06) 0%, transparent 60%),
    var(--bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
}
.about-visual-inner .hex-grid {
  display: grid;
  grid-template-columns: repeat(4, 50px);
  gap: 6px;
  opacity: 0.6;
}
.hex {
  width: 50px;
  height: 50px;
  background: rgba(0,212,255,0.06);
  border: 1px solid rgba(0,212,255,0.1);
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  transition: all 0.6s;
}
.hex:nth-child(odd) { transform: translateY(25px); }
.hex.active {
  background: rgba(0,212,255,0.15);
  border-color: rgba(0,212,255,0.3);
}
.about-content h2 { margin-bottom: 20px; }
.about-content p { margin-bottom: 16px; }

/* Value props */
.value-props {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 30px;
}
.value-prop {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.value-prop:hover {
  border-color: var(--border-hover);
}
.value-prop-icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(0,255,148,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 1rem;
}
.value-prop h4 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-heading);
  margin-bottom: 4px;
}
.value-prop p {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.5;
}

/* ---------- Approach / Process ---------- */
.approach-section { background: var(--surface); position: relative; }
.process-timeline {
  display: flex;
  gap: 0;
  position: relative;
  margin-top: 20px;
}
.process-step {
  flex: 1;
  text-align: center;
  padding: 30px 20px;
  position: relative;
}
.process-step::before {
  content: '';
  position: absolute;
  top: 55px;
  left: 50%;
  width: 100%;
  height: 2px;
  background: var(--border);
}
.process-step:last-child::before { display: none; }
.process-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 2px solid var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--primary);
  font-size: 0.9rem;
  margin: 0 auto 16px;
  position: relative;
  z-index: 2;
  transition: all var(--transition);
}
.process-step:hover .process-number {
  background: var(--primary);
  color: var(--bg-dark);
}
.process-step h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-heading);
  margin-bottom: 8px;
}
.process-step p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ---------- CTA Banner ---------- */
.cta-section {
  position: relative;
  padding: 80px 0;
}
.cta-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-box::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at center, rgba(0,212,255,0.04) 0%, transparent 50%);
  animation: ctaRotate 20s linear infinite;
}
@keyframes ctaRotate {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}
.cta-box h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: 16px;
  position: relative;
}
.cta-box p {
  color: var(--text-muted);
  margin-bottom: 32px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
}
.cta-box .btn { position: relative; }

/* ---------- Footer ---------- */
.footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 60px 0 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 16px;
  max-width: 300px;
}
.footer h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-heading);
  margin-bottom: 20px;
}
.footer-links a {
  display: block;
  color: var(--text-muted);
  font-size: 0.9rem;
  padding: 4px 0;
}
.footer-links a:hover { color: var(--primary); }
.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 12px;
  color: var(--text-muted);
  font-size: 0.9rem;
}
.footer-contact-item svg {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  color: var(--primary);
  margin-top: 2px;
}
.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ---------- Page Headers (inner pages) ---------- */
.page-header {
  padding: 160px 0 80px;
  position: relative;
  background: var(--gradient-hero);
  overflow: hidden;
}
.page-header .circuit-bg { opacity: 0.5; }
.page-header h1 {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 800;
  color: var(--text-heading);
  margin-bottom: 16px;
  position: relative;
  z-index: 2;
}
.page-header p {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 600px;
  position: relative;
  z-index: 2;
}
.breadcrumb {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  position: relative;
  z-index: 2;
}
.breadcrumb a { color: var(--primary); }
.breadcrumb span { margin: 0 8px; }

/* ---------- Services Detail Page ---------- */
.service-detail {
  padding: 80px 0;
}
.service-detail-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 48px;
  margin-bottom: 32px;
  transition: all var(--transition);
}
.service-detail-card:hover {
  border-color: var(--border-hover);
}
.service-detail-card .service-header {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 20px;
}
.service-detail-card h3 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-heading);
}
.service-detail-card p {
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 16px;
}
.service-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 20px;
}
.service-feature {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--surface);
  font-size: 0.9rem;
  color: var(--text);
}
.service-feature svg {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  color: var(--accent);
}

/* ---------- About Page ---------- */
.vision-mission {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 40px;
}
.vm-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  transition: all var(--transition);
}
.vm-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}
.vm-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.vm-card h3 svg { color: var(--primary); }
.vm-card p {
  color: var(--text-muted);
  line-height: 1.8;
}

.leadership-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  max-width: 600px;
}
.leadership-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: 4px;
}
.leadership-card .title {
  color: var(--primary);
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 16px;
}
.leadership-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}
.leadership-strengths {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}
.strength-tag {
  background: rgba(0,212,255,0.08);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 6px 16px;
  font-size: 0.82rem;
  color: var(--primary);
}

/* ---------- Contact Page ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 48px;
  align-items: start;
}
.contact-info-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
}
.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 28px;
}
.contact-info-item:last-child { margin-bottom: 0; }
.contact-info-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(0,212,255,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--primary);
}
.contact-info-item h4 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-heading);
  margin-bottom: 4px;
}
.contact-info-item p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}
.contact-form-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-heading);
  margin-bottom: 8px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: all var(--transition);
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0,212,255,0.1);
}
.form-group textarea { resize: vertical; min-height: 130px; }
.form-group select { cursor: pointer; }
.form-group select option { background: var(--bg-card); }
.form-status {
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 0.9rem;
  margin-top: 16px;
  display: none;
}
.form-status.success {
  background: rgba(0,255,148,0.08);
  border: 1px solid rgba(0,255,148,0.2);
  color: var(--accent);
  display: block;
}
.form-status.error {
  background: rgba(255,107,53,0.08);
  border: 1px solid rgba(255,107,53,0.2);
  color: var(--accent-warm);
  display: block;
}

/* ---------- Animations ---------- */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}
.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }
.fade-in-delay-4 { transition-delay: 0.4s; }


/* ---------- Floating WhatsApp Button ---------- */
.whatsapp-float {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: #25D366;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  z-index: 999;
  transition: all var(--transition);
  cursor: pointer;
}
.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 28px rgba(37, 211, 102, 0.55);
}
.whatsapp-float svg {
  width: 32px;
  height: 32px;
  fill: #fff;
}
.whatsapp-float .tooltip {
  position: absolute;
  right: 72px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 500;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}
.whatsapp-float:hover .tooltip { opacity: 1; }

/* ---------- Responsive ---------- */
@media (max-width: 992px) {
  .about-grid { grid-template-columns: 1fr; }
  .about-visual { height: 300px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .vision-mission { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .service-features { grid-template-columns: 1fr; }
  .process-timeline { flex-direction: column; gap: 0; }
  .process-step::before { display: none; }
  .hero-visual { display: none; }
}
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(10,14,26,0.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 24px;
    z-index: 999;
  }
  .nav-links.open { display: flex; }
  .nav-links a { font-size: 1.3rem; }
  .nav-toggle { display: flex; z-index: 1001; }
  .hero-stats { gap: 24px; flex-wrap: wrap; }
  .hero h1 { font-size: 2.2rem; }
  .hero-buttons { flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  .services-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .value-props { grid-template-columns: 1fr; }
  .service-detail-card { padding: 28px; }
  .cta-box { padding: 40px 24px; }
  .section { padding: 70px 0; }
}