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

:root {
  --bg: #080c14;
  --bg2: #0d1220;
  --bg3: #111827;
  --card: #111827;
  --card-border: rgba(255,255,255,0.07);
  --text: #f1f5f9;
  --muted: #94a3b8;
  --accent: #6366f1;
  --accent2: #8b5cf6;
  --green: #10b981;
  --orange: #f97316;
  --max: 1200px;
  --radius: 16px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', 'Noto Sans Bengali', sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

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

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ── Gradient text ── */
.gradient-text {
  background: linear-gradient(135deg, #6366f1, #8b5cf6, #a855f7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.4rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: all 200ms ease;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  color: #fff;
  box-shadow: 0 4px 20px rgba(99,102,241,0.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(99,102,241,0.5);
}
.btn-ghost {
  background: rgba(255,255,255,0.07);
  color: var(--text);
  border: 1px solid var(--card-border);
}
.btn-ghost:hover { background: rgba(255,255,255,0.12); }
.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}
.btn-outline:hover { background: rgba(99,102,241,0.1); }
.btn-lg { padding: 0.85rem 2rem; font-size: 1rem; }
.btn-sm { padding: 0.4rem 0.9rem; font-size: 0.82rem; }
.btn-block { width: 100%; justify-content: center; }

/* ── NAV ── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  transition: background 300ms, backdrop-filter 300ms;
  padding: 0.5rem 0;
}
.nav.scrolled {
  background: rgba(8,12,20,0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--card-border);
}
.nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.6rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 2rem;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-shrink: 0;
}
.nav-logo-badge {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  color: #fff;
  font-weight: 800;
  font-size: 1.1rem;
  display: flex; align-items: center; justify-content: center;
}
.nav-logo-text {
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}
.nav-links {
  display: flex;
  list-style: none;
  gap: 0.3rem;
  margin-left: auto;
}
.nav-links a {
  padding: 0.45rem 0.85rem;
  border-radius: 6px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 160ms, background 160ms;
}
.nav-links a:hover { color: var(--text); background: rgba(255,255,255,0.06); }
.nav-cta { margin-left: 0.5rem; }
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0.4rem;
  margin-left: auto;
}
.nav-hamburger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 250ms ease;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.nav-mobile {
  display: none;
  flex-direction: column;
  gap: 0;
  background: rgba(8,12,20,0.97);
  border-top: 1px solid var(--card-border);
  padding: 1rem 1.5rem;
}
.nav-mobile.open { display: flex; }
.nav-mobile a {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--card-border);
  color: var(--muted);
  font-weight: 500;
}
.nav-mobile a:last-child { border-bottom: none; margin-top: 0.5rem; }
.nav-mobile a:hover { color: var(--text); }

/* ── HERO ── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 8rem 0 5rem;
}
.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.25;
  animation: orb-float 8s ease-in-out infinite;
}
.hero-orb-1 {
  width: 500px; height: 500px;
  background: #6366f1;
  top: -100px; left: -100px;
  animation-delay: 0s;
}
.hero-orb-2 {
  width: 400px; height: 400px;
  background: #8b5cf6;
  top: 50%; right: -100px;
  animation-delay: 3s;
}
.hero-orb-3 {
  width: 300px; height: 300px;
  background: #10b981;
  bottom: -50px; left: 40%;
  animation-delay: 5s;
}
@keyframes orb-float {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-30px) scale(1.05); }
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  mask-image: radial-gradient(ellipse at center, black 40%, transparent 80%);
}
.hero .container { position: relative; z-index: 1; text-align: center; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(99,102,241,0.15);
  border: 1px solid rgba(99,102,241,0.3);
  color: #a5b4fc;
  padding: 0.35rem 1rem;
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}
.hero-title {
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1.2rem;
}
.hero-sub {
  font-size: 1.1rem;
  color: var(--muted);
  max-width: 580px;
  margin: 0 auto 2rem;
  line-height: 1.7;
}
.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}
.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}
.stat { text-align: center; }
.stat-num {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  background: linear-gradient(135deg, #6366f1, #a855f7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-label { font-size: 0.82rem; color: var(--muted); font-weight: 500; }
.stat-divider { width: 1px; height: 40px; background: var(--card-border); }
.hero-scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
}
.hero-scroll-hint span {
  display: block;
  width: 2px;
  height: 40px;
  background: linear-gradient(to bottom, transparent, var(--accent));
  animation: scroll-hint 2s ease-in-out infinite;
}
@keyframes scroll-hint {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ── SECTIONS ── */
.section { padding: 6rem 0; }
.section-alt { background: var(--bg2); }
.section-header { text-align: center; margin-bottom: 3.5rem; }
.section-tag {
  display: inline-block;
  background: rgba(99,102,241,0.15);
  color: #a5b4fc;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.3rem 0.9rem;
  border-radius: 100px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1rem;
  border: 1px solid rgba(99,102,241,0.25);
}
.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 0.8rem;
}
.section-sub { color: var(--muted); max-width: 520px; margin: 0 auto; }

/* ── PRODUCTS ── */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}
.product-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 1.8rem;
  position: relative;
  transition: transform 250ms, box-shadow 250ms, border-color 250ms;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}
.product-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
  border-color: rgba(99,102,241,0.35);
}
.product-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
}
.product-badge {
  position: absolute;
  top: 1.2rem; right: 1.2rem;
  background: linear-gradient(135deg, #f97316, #ef4444);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: 100px;
  text-transform: uppercase;
}
.product-badge-blue {
  background: linear-gradient(135deg, #0ea5e9, #2563eb);
}
.product-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
}
.product-card p { color: var(--muted); font-size: 0.9rem; line-height: 1.6; }
.product-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--muted);
  flex: 1;
}
.product-features li { display: flex; gap: 0.4rem; }
.product-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid var(--card-border);
  margin-top: auto;
}
.product-price { font-weight: 700; font-size: 1rem; }
.product-price small { font-weight: 400; color: var(--muted); font-size: 0.78rem; }

/* ── SERVICES ── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.2rem;
}
.service-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: transform 250ms, border-color 250ms;
}
.service-card:hover {
  transform: translateY(-4px);
  border-color: rgba(99,102,241,0.3);
}
.service-icon { font-size: 2rem; margin-bottom: 0.8rem; }
.service-card h4 { font-size: 1rem; font-weight: 700; margin-bottom: 0.5rem; }
.service-card p { color: var(--muted); font-size: 0.87rem; line-height: 1.6; }

/* ── PRICING ── */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  align-items: stretch;
}
.pricing-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 2rem;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: transform 250ms, border-color 250ms;
}
.pricing-card:hover { transform: translateY(-4px); }
.pricing-card-featured {
  border-color: rgba(99,102,241,0.5);
  background: linear-gradient(135deg, rgba(99,102,241,0.08), rgba(139,92,246,0.05));
  box-shadow: 0 0 40px rgba(99,102,241,0.15);
}
.pricing-popular {
  position: absolute;
  top: -12px; left: 50%; transform: translateX(-50%);
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 1rem;
  border-radius: 100px;
  white-space: nowrap;
}
.pricing-name { font-size: 1rem; font-weight: 600; color: var(--muted); }
.pricing-price {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.pricing-price span { font-size: 0.9rem; font-weight: 400; color: var(--muted); }
.pricing-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--muted);
  flex: 1;
}

/* ── WHY US ── */
.why-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.why-text .section-title { text-align: left; }
.why-text p { color: var(--muted); margin-bottom: 2rem; }
.why-points { display: flex; flex-direction: column; gap: 1.2rem; }
.why-point {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.why-point > span { font-size: 1.5rem; flex-shrink: 0; }
.why-point strong { display: block; font-weight: 700; margin-bottom: 0.2rem; }
.why-point p { color: var(--muted); font-size: 0.88rem; margin: 0; }
.why-visual { display: flex; align-items: center; justify-content: center; }
.why-card-stack { position: relative; width: 300px; height: 300px; }
.why-floating-card {
  position: absolute;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 1rem 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  font-weight: 700;
  font-size: 0.95rem;
  box-shadow: 0 10px 40px rgba(0,0,0,0.3);
  animation: float 6s ease-in-out infinite;
}
.why-floating-card span { font-size: 1.5rem; }
.why-floating-card small { font-weight: 400; color: var(--muted); font-size: 0.78rem; }
.wfc-1 { top: 0; left: 0; animation-delay: 0s; }
.wfc-2 { top: 50%; left: 50%; transform: translate(-50%, -50%); animation-delay: 2s; z-index: 2; background: linear-gradient(135deg, rgba(99,102,241,0.15), rgba(139,92,246,0.1)); border-color: rgba(99,102,241,0.3); }
.wfc-3 { bottom: 0; right: 0; animation-delay: 4s; }
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
.wfc-2 { animation: float2 6s ease-in-out infinite 2s; }
@keyframes float2 {
  0%, 100% { transform: translate(-50%, -50%) translateY(0); }
  50% { transform: translate(-50%, -50%) translateY(-12px); }
}

/* ── CONTACT ── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 3rem;
  align-items: start;
}
.contact-info { display: flex; flex-direction: column; gap: 1.5rem; }
.contact-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.contact-item > span { font-size: 1.5rem; flex-shrink: 0; }
.contact-item strong { display: block; font-weight: 700; margin-bottom: 0.2rem; }
.contact-item p { color: var(--muted); font-size: 0.9rem; margin: 0; }
.contact-form { display: flex; flex-direction: column; gap: 1rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.contact-form input,
.contact-form textarea {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 0.75rem 1rem;
  color: var(--text);
  font-family: inherit;
  font-size: 0.9rem;
  outline: none;
  transition: border-color 200ms;
  resize: vertical;
}
.contact-form input:focus,
.contact-form textarea:focus { border-color: var(--accent); }
.contact-form input::placeholder,
.contact-form textarea::placeholder { color: var(--muted); }

/* ── FOOTER ── */
.footer {
  background: var(--bg2);
  border-top: 1px solid var(--card-border);
  padding: 4rem 0 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 3rem;
}
.footer-brand p {
  color: var(--muted);
  font-size: 0.88rem;
  margin-top: 1rem;
  max-width: 260px;
  line-height: 1.6;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.footer-links strong {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin-bottom: 0.4rem;
}
.footer-links a {
  color: var(--muted);
  font-size: 0.88rem;
  transition: color 160ms;
}
.footer-links a:hover { color: var(--text); }
.footer-bottom {
  border-top: 1px solid var(--card-border);
  padding-top: 1.5rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
}

/* ── Animations ── */
.animate-fade-up {
  opacity: 0;
  transform: translateY(30px);
  animation: fade-up 0.7s ease forwards;
}
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.35s; }
.delay-4 { animation-delay: 0.5s; }
@keyframes fade-up {
  to { opacity: 1; transform: translateY(0); }
}
.animate-card {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.animate-card.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .why-grid { grid-template-columns: 1fr; }
  .why-visual { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .nav-links, .nav-cta { display: none; }
  .nav-hamburger { display: flex; }
  .hero { padding: 7rem 0 4rem; }
  .hero-stats { gap: 1.2rem; }
  .stat-num { font-size: 1.5rem; }
  .section { padding: 4rem 0; }
  .products-grid, .services-grid, .pricing-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}