/* ============================================
   NAKFLO SERVICE — Blue Professional Design
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,600;1,400&family=DM+Sans:wght@300;400;500;600&display=swap');

/* ---- CSS Variables ---- */
:root {
  --blue-deep:    #0D2F5E;
  --blue-mid:     #1A4A8A;
  --blue-bright:  #2563C8;
  --blue-sky:     #3B82F6;
  --blue-light:   #EBF2FF;
  --blue-pale:    #F5F8FF;
  --accent:       #F59E0B;
  --accent-light: #FDE68A;
  --white:        #FFFFFF;
  --gray-50:      #F9FAFB;
  --gray-100:     #F3F4F6;
  --gray-300:     #D1D5DB;
  --gray-500:     #6B7280;
  --gray-700:     #374151;
  --gray-900:     #111827;
  --radius-sm:    6px;
  --radius:       10px;
  --radius-lg:    18px;
  --shadow-sm:    0 2px 8px rgba(13,47,94,0.08);
  --shadow:       0 8px 32px rgba(13,47,94,0.12);
  --shadow-lg:    0 20px 60px rgba(13,47,94,0.18);
  --transition:   0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--white);
  color: var(--gray-700);
  font-family: 'DM Sans', sans-serif;
  font-weight: 400;
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: 'Playfair Display', serif;
  font-weight: 400;
  line-height: 1.2;
  color: var(--gray-900);
}

a { color: inherit; text-decoration: none; }
img { display: block; width: 100%; }

::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--gray-100); }
::-webkit-scrollbar-thumb { background: var(--blue-sky); border-radius: 2px; }

/* ============================================
   HEADER
   ============================================ */
header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 0 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  background: transparent;
  transition: var(--transition);
}

header.scrolled {
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--gray-100), var(--shadow-sm);
}

header.scrolled .logo-main { color: var(--blue-deep); }
header.scrolled .logo-sub  { color: var(--gray-500); }
header.scrolled nav a      { color: var(--gray-700); }
header.scrolled nav a:hover { color: var(--blue-bright); }

.logo { display: flex; flex-direction: column; }

.logo-main {
  font-family: 'Playfair Display', serif;
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--white);
  transition: color var(--transition);
}

.logo-sub {
  font-size: 0.58rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.65);
  margin-top: -1px;
  transition: color var(--transition);
}

nav {
  display: flex;
  align-items: center;
  gap: 36px;
}

nav a {
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: rgba(255,255,255,0.85);
  position: relative;
  padding: 4px 0;
  transition: color var(--transition);
}

nav a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transition: width var(--transition);
}

nav a:hover::after, nav a.active::after { width: 100%; }
nav a:hover, nav a.active { color: var(--white); }
header.scrolled nav a.active { color: var(--blue-bright); }

.nav-cta {
  background: var(--accent) !important;
  color: var(--gray-900) !important;
  padding: 9px 22px !important;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.8rem !important;
  transition: all var(--transition) !important;
  letter-spacing: 0.04em !important;
}
.nav-cta::after { display: none !important; }
.nav-cta:hover {
  background: var(--accent-light) !important;
  box-shadow: 0 6px 20px rgba(245,158,11,0.35);
  transform: translateY(-1px);
}
header.scrolled .nav-cta { color: var(--gray-900) !important; }

/* ============================================
   HERO SLIDER
   ============================================ */
.hero-slider {
  position: relative;
  height: 100vh;
  min-height: 620px;
  overflow: hidden;
}

.slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.2s ease;
  display: flex;
  align-items: center;
}

.slide.active { opacity: 1; z-index: 2; }
.slide.prev   { opacity: 0; z-index: 1; }

.slide-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1.06);
  transition: transform 7s ease;
}
.slide.active .slide-bg { transform: scale(1); }

.slide-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    110deg,
    rgba(13,47,94,0.88) 0%,
    rgba(13,47,94,0.60) 55%,
    rgba(13,47,94,0.25) 100%
  );
}

/* ---- Slide background fallback color ---- */
.slide-bg { background-color: var(--blue-deep); }

/* Slide content */
.slide-content {
  position: relative;
  z-index: 3;
  padding: 0 80px;
  max-width: 780px;
  animation: none;
}

.slide.active .slide-content > * {
  animation: fadeUp 0.8s ease both;
}
.slide.active .slide-content > *:nth-child(1) { animation-delay: 0.1s; }
.slide.active .slide-content > *:nth-child(2) { animation-delay: 0.25s; }
.slide.active .slide-content > *:nth-child(3) { animation-delay: 0.4s; }
.slide.active .slide-content > *:nth-child(4) { animation-delay: 0.55s; }

.slide-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(245,158,11,0.18);
  border: 1px solid rgba(245,158,11,0.4);
  color: var(--accent-light);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 40px;
  margin-bottom: 24px;
}

.slide-content h2 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2.2rem, 4vw, 3.8rem);
  font-weight: 600;
  color: var(--white);
  margin-bottom: 18px;
  line-height: 1.15;
}

.slide-content h2 em {
  font-style: italic;
  color: var(--accent-light);
}

.slide-content p {
  font-size: 1rem;
  color: rgba(255,255,255,0.75);
  max-width: 520px;
  margin-bottom: 40px;
  line-height: 1.85;
}

.slide-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* Slider controls */
.slider-dots {
  position: absolute;
  bottom: 100px;
  left: 80px;
  z-index: 10;
  display: flex;
  gap: 8px;
  align-items: center;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.3);
  border: none;
  cursor: pointer;
  padding: 0;
  transition: all var(--transition);
}

.dot.active {
  background: var(--accent);
  width: 30px;
  border-radius: 4px;
}

.slider-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  width: 50px;
  height: 50px;
  border: 1.5px solid rgba(255,255,255,0.3);
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(8px);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  cursor: pointer;
  transition: all var(--transition);
  font-size: 0.9rem;
}

.slider-arrow:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--gray-900);
}

.slider-arrow.prev-btn { left: 24px; }
.slider-arrow.next-btn { right: 24px; }

/* Progress bar */
.slider-progress {
  position: absolute;
  bottom: 0; left: 0;
  height: 3px;
  background: var(--accent);
  z-index: 10;
  width: 0;
}

/* Stats strip */
.hero-stats-strip {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  z-index: 5;
  background: rgba(13,47,94,0.6);
  backdrop-filter: blur(14px);
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 22px 80px;
  display: flex;
  gap: 56px;
}

.stat-item { display: flex; flex-direction: column; gap: 3px; }

.stat-num {
  font-family: 'Playfair Display', serif;
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--accent-light);
  line-height: 1;
}

.stat-label {
  font-size: 0.66rem;
  font-weight: 500;
  color: rgba(255,255,255,0.55);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--blue-bright);
  color: var(--white);
  padding: 13px 28px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  transition: all var(--transition);
}
.btn-primary:hover {
  background: var(--blue-mid);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(37,99,200,0.38);
}

.btn-accent {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--accent);
  color: var(--gray-900);
  padding: 13px 28px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 700;
  transition: all var(--transition);
}
.btn-accent:hover {
  background: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(245,158,11,0.35);
}

.btn-outline-white {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: transparent;
  color: var(--white);
  padding: 12px 28px;
  border: 1.5px solid rgba(255,255,255,0.45);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  transition: all var(--transition);
}
.btn-outline-white:hover {
  border-color: var(--white);
  background: rgba(255,255,255,0.1);
  transform: translateY(-2px);
}

.btn-outline-blue {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: transparent;
  color: var(--blue-bright);
  padding: 12px 28px;
  border: 1.5px solid var(--blue-bright);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  transition: all var(--transition);
}
.btn-outline-blue:hover {
  background: var(--blue-bright);
  color: var(--white);
  transform: translateY(-2px);
}

/* ============================================
   SECTIONS COMMON
   ============================================ */
.section { padding: 100px 60px; }

.section-inner {
  max-width: 1180px;
  margin: 0 auto;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--blue-bright);
  margin-bottom: 14px;
}

.section-label::before {
  content: '';
  width: 28px;
  height: 2px;
  background: var(--blue-bright);
  border-radius: 2px;
}

.section-title {
  font-size: clamp(1.9rem, 3.5vw, 3rem);
  color: var(--gray-900);
  margin-bottom: 16px;
}

.section-sub {
  font-size: 1rem;
  color: var(--gray-500);
  max-width: 540px;
  line-height: 1.85;
  margin-bottom: 56px;
}

/* ============================================
   PILLAR CARDS
   ============================================ */
.pillar-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.pillar-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  border: 1px solid var(--gray-100);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  text-align: center;
}

.pillar-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
  border-color: var(--blue-light);
}

.pillar-icon {
  width: 68px;
  height: 68px;
  background: linear-gradient(135deg, var(--blue-bright), var(--blue-sky));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.5rem;
  margin: 0 auto 22px;
  box-shadow: 0 8px 22px rgba(37,99,200,0.28);
}

.pillar-card h3 { font-size: 1.2rem; margin-bottom: 10px; }
.pillar-card p  { font-size: 0.88rem; color: var(--gray-500); line-height: 1.8; }

/* ============================================
   SERVICE CARDS
   ============================================ */
.services-bg { background: var(--blue-pale); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-lg);
  padding: 44px 40px;
  position: relative;
  overflow: hidden;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--blue-light);
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue-bright), var(--blue-sky));
  opacity: 0;
  transition: opacity var(--transition);
}
.service-card:hover::before { opacity: 1; }

.service-icon {
  width: 56px;
  height: 56px;
  background: var(--blue-light);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue-bright);
  font-size: 1.4rem;
  margin-bottom: 28px;
  transition: all var(--transition);
}
.service-card:hover .service-icon {
  background: var(--blue-bright);
  color: var(--white);
}

.service-num {
  position: absolute;
  top: 24px; right: 28px;
  font-family: 'Playfair Display', serif;
  font-size: 3.5rem;
  font-weight: 400;
  color: rgba(37,99,200,0.05);
  line-height: 1;
}

.service-card h3 { font-size: 1.3rem; margin-bottom: 12px; color: var(--gray-900); }
.service-card p  { font-size: 0.9rem; color: var(--gray-500); line-height: 1.8; }

.service-card ul { list-style: none; margin-top: 18px; display: flex; flex-direction: column; gap: 8px; }
.service-card ul li {
  font-size: 0.84rem; color: var(--gray-500);
  padding-left: 18px; position: relative;
}
.service-card ul li::before {
  content: '';
  position: absolute; left: 0; top: 9px;
  width: 6px; height: 6px;
  background: var(--blue-sky); border-radius: 50%;
}

/* ============================================
   ABOUT STRIP (homepage teaser)
   ============================================ */
.about-strip-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-strip-img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--blue-light), #c8dcff);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  position: relative;
}

.about-strip-img i {
  font-size: 5rem;
  color: var(--blue-mid);
  opacity: 0.35;
  margin-bottom: 14px;
}

.about-strip-img span {
  font-size: 0.68rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--blue-mid);
  opacity: 0.5;
}

.about-badge-float {
  position: absolute;
  bottom: -20px; right: -20px;
  background: var(--accent);
  border-radius: var(--radius);
  padding: 20px 24px;
  text-align: center;
  box-shadow: 0 8px 28px rgba(245,158,11,0.35);
}

.about-badge-float .num {
  font-family: 'Playfair Display', serif;
  font-size: 2rem;
  color: var(--gray-900);
  display: block; line-height: 1;
}
.about-badge-float .lbl {
  font-size: 0.6rem; font-weight: 600;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: rgba(17,24,39,0.7); margin-top: 4px;
}

.about-values { margin-top: 32px; display: flex; flex-direction: column; gap: 14px; }

.about-value-row {
  display: flex; align-items: flex-start; gap: 16px;
  padding: 16px 20px; border-radius: var(--radius);
  border: 1px solid var(--gray-100); background: var(--gray-50);
  transition: all var(--transition);
}

.about-value-row:hover {
  border-color: var(--blue-light); background: var(--blue-pale);
}

.about-value-row i { color: var(--blue-bright); font-size: 1.1rem; margin-top: 2px; flex-shrink: 0; }

.about-value-row h4 {
  font-family: 'DM Sans', sans-serif; font-size: 0.9rem;
  font-weight: 600; color: var(--gray-900); margin-bottom: 2px;
}

.about-value-row p { font-size: 0.82rem; color: var(--gray-500); line-height: 1.6; }

/* ============================================
   CTA BAND
   ============================================ */
.cta-band {
  background: linear-gradient(135deg, var(--blue-deep) 0%, var(--blue-mid) 55%, var(--blue-bright) 100%);
  padding: 88px 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-band::before {
  content: ''; position: absolute; top: -80px; right: -80px;
  width: 320px; height: 320px;
  background: rgba(245,158,11,0.08); border-radius: 50%;
}
.cta-band::after {
  content: ''; position: absolute; bottom: -60px; left: -60px;
  width: 220px; height: 220px;
  background: rgba(255,255,255,0.05); border-radius: 50%;
}
.cta-band .section-label { color: var(--accent-light); justify-content: center; }
.cta-band .section-label::before { background: var(--accent-light); }
.cta-band h2 { color: var(--white); margin-bottom: 16px; }
.cta-band p  { color: rgba(255,255,255,0.7); max-width: 480px; margin: 0 auto 40px; }

/* ============================================
   FOOTER
   ============================================ */
footer {
  background: var(--blue-deep);
  color: rgba(255,255,255,0.7);
  padding: 72px 60px 40px;
}

.footer-inner {
  max-width: 1180px; margin: 0 auto;
  display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 60px;
  padding-bottom: 52px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  margin-bottom: 40px;
}

.footer-brand .logo-main { color: var(--white); font-size: 1.2rem; }
.footer-brand .logo-sub  { color: rgba(255,255,255,0.4); }
.footer-brand p {
  font-size: 0.86rem; line-height: 1.8; margin-top: 18px;
  color: rgba(255,255,255,0.5); max-width: 280px;
}

.footer-col h4 {
  font-size: 0.68rem; font-weight: 600; letter-spacing: 0.25em;
  text-transform: uppercase; color: var(--accent-light); margin-bottom: 20px;
  font-family: 'DM Sans', sans-serif;
}

.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.footer-col ul li a { font-size: 0.86rem; color: rgba(255,255,255,0.5); transition: color var(--transition); }
.footer-col ul li a:hover { color: var(--white); }

.footer-bottom {
  max-width: 1180px; margin: 0 auto;
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.76rem; color: rgba(255,255,255,0.3);
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

.reveal {
  opacity: 0; transform: translateY(22px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal.visible { opacity: 1; transform: none; }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  header { padding: 0 32px; }
  .section { padding: 72px 32px; }
  .services-grid { grid-template-columns: 1fr; }
  .pillar-grid   { grid-template-columns: 1fr 1fr; }
  .about-strip-layout { grid-template-columns: 1fr; }
  .footer-inner  { grid-template-columns: 1fr 1fr; }
  footer         { padding: 56px 32px 32px; }
  .hero-stats-strip { padding: 20px 32px; gap: 36px; }
  .slide-content { padding: 0 40px; }
  .slider-dots   { left: 40px; }
}

@media (max-width: 768px) {
  header { padding: 0 20px; }
  nav a:not(.nav-cta) { display: none; }
  .slide-content { padding: 0 20px; }
  .slide-content h2 { font-size: 2rem; }
  .hero-stats-strip { display: none; }
  .pillar-grid { grid-template-columns: 1fr; }
  .cta-band    { padding: 64px 24px; }
  .footer-inner { grid-template-columns: 1fr; gap: 36px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  footer       { padding: 40px 20px 28px; }
  .section     { padding: 60px 20px; }
  .slider-dots { bottom: 80px; left: 20px; }
}