/* 
========================================================================
   ZnthHost - Web Hosting Business Landing Page - Stylesheet
========================================================================
*/

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

/* --- CSS Variables / Design System --- */
:root {
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Colors */
  --bg-primary: #0a0b10;
  --bg-secondary: #12131a;
  --bg-tertiary: #191b26;
  --bg-card: rgba(18, 19, 26, 0.7);
  --bg-glass: rgba(10, 11, 16, 0.65);
  
  --primary: #6366f1;         /* Neon Indigo */
  --primary-hover: #4f46e5;
  --primary-glow: rgba(99, 102, 241, 0.3);
  
  --secondary: #06b6d4;       /* Neon Cyan */
  --secondary-hover: #0891b2;
  --secondary-glow: rgba(6, 182, 212, 0.2);

  --accent: #a855f7;          /* Purple */
  --accent-glow: rgba(168, 85, 247, 0.25);

  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  
  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(99, 102, 241, 0.4);
  
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;

  /* bKash Specific Colors */
  --bkash-color: #e2136e;
  --bkash-hover: #b80d57;
  --bkash-bg: #e2136e;
  --bkash-light: #fbe7f0;
  --bkash-dark: #8c0c43;

  /* Animations & Layouts */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-glow: 0 0 25px var(--primary-glow);
  --card-radius: 16px;
  --btn-radius: 12px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
}

body {
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  position: relative;
  background: radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.05) 0%, transparent 40%),
              radial-gradient(circle at 90% 80%, rgba(6, 182, 212, 0.05) 0%, transparent 40%),
              var(--bg-primary);
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-fast);
}

img, svg {
  max-width: 100%;
  height: auto;
  display: block;
}

button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  background: none;
  border: none;
  outline: none;
}

button {
  cursor: pointer;
}

ul {
  list-style: none;
}

/* --- Scrollbar --- */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--bg-tertiary);
  border-radius: 5px;
  border: 2px solid var(--bg-primary);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--primary);
}

/* --- Container --- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Section Formatting --- */
section {
  padding: 100px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px auto;
}

.section-tag {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 30px;
  background: rgba(99, 102, 241, 0.1);
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  border: 1px solid rgba(99, 102, 241, 0.2);
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 16px;
  background: linear-gradient(135deg, #fff 30%, var(--text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

/* --- Typography Helpers --- */
.text-gradient {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-gradient-purple {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* --- Scroll Fade-in Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  font-weight: 600;
  border-radius: var(--btn-radius);
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(99, 102, 241, 0.5), 0 0 15px var(--accent-glow);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.btn-outline {
  border: 2px solid var(--primary);
  color: var(--text-primary);
}

.btn-outline:hover {
  background: var(--primary);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.btn-icon {
  font-size: 0.9rem;
}

/* --- Header / Navigation Bar --- */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: var(--transition-normal);
  border-bottom: 1px solid transparent;
}

header.scrolled {
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
  padding: 12px 0;
}

header:not(.scrolled) {
  padding: 24px 0;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: white;
  box-shadow: 0 0 15px rgba(99, 102, 241, 0.4);
}

.logo-text {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 0.5px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-item {
  position: relative;
}

.nav-link {
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 8px 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transition: var(--transition-normal);
}

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

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-login {
  color: var(--text-secondary);
  font-weight: 600;
  padding: 10px 20px;
}

.nav-login:hover {
  color: var(--text-primary);
}

/* Mobile Nav Toggle */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  background: transparent;
  cursor: pointer;
  z-index: 1100;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition-normal);
}

/* --- Hero Section --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 140px;
  padding-bottom: 80px;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  border-radius: 30px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.hero-tag i {
  color: var(--secondary);
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 3.8rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 24px;
  letter-spacing: -1px;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 40px;
  max-width: 540px;
}

.hero-btns {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-graphics {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Floating animated graphics */
.hero-glow-blob {
  position: absolute;
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.2) 0%, transparent 70%);
  border-radius: 50%;
  filter: blur(40px);
  z-index: 1;
  animation: float-slow 10s infinite alternate;
}

.hero-glow-blob-secondary {
  position: absolute;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  filter: blur(40px);
  z-index: 1;
  animation: float-slow 14s infinite alternate-reverse;
}

.server-rack-wrapper {
  position: relative;
  z-index: 2;
  perspective: 1000px;
}

.server-rack {
  width: 320px;
  background: linear-gradient(145deg, rgba(25, 27, 38, 0.95) 0%, rgba(18, 19, 26, 0.95) 100%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  padding: 24px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.5), 0 0 30px rgba(99, 102, 241, 0.15);
  transform: rotateY(-15deg) rotateX(10deg);
  transform-style: preserve-3d;
  animation: hover-rack 6s ease-in-out infinite alternate;
}

.server-unit {
  height: 40px;
  background: rgba(10, 11, 16, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 8px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  position: relative;
  overflow: hidden;
}

.server-unit:last-child {
  margin-bottom: 0;
}

.server-unit::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.05), transparent);
  animation: sweep 4s infinite linear;
}

.server-indicator {
  display: flex;
  gap: 8px;
}

.server-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--text-muted);
}

.server-dot.active {
  background-color: var(--success);
  box-shadow: 0 0 8px var(--success);
  animation: blink 1.5s infinite;
}

.server-dot.pulse {
  background-color: var(--secondary);
  box-shadow: 0 0 8px var(--secondary);
  animation: blink-reverse 2s infinite;
}

.server-label {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-weight: 600;
  letter-spacing: 1px;
}

.server-lines {
  display: flex;
  flex-direction: column;
  gap: 3px;
  width: 60px;
}

.server-line {
  height: 3px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 2px;
}

.server-line.fill-70 { width: 70%; background-color: var(--primary); }
.server-line.fill-90 { width: 90%; background-color: var(--secondary); }
.server-line.fill-50 { width: 50%; background-color: var(--accent); }

/* Floating icons around server */
.floating-element {
  position: absolute;
  width: 50px;
  height: 50px;
  background: rgba(25, 27, 38, 0.8);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  box-shadow: 0 10px 25px rgba(0,0,0,0.3);
  backdrop-filter: blur(6px);
  z-index: 3;
}

.fe-1 {
  top: -20px;
  left: -30px;
  color: var(--secondary);
  animation: float-icon 4s infinite alternate ease-in-out;
}

.fe-2 {
  bottom: 20px;
  right: -25px;
  color: var(--accent);
  animation: float-icon 5s infinite alternate-reverse ease-in-out;
}

.fe-3 {
  top: 140px;
  right: -45px;
  color: var(--primary);
  animation: float-icon 4.5s infinite alternate ease-in-out;
}

/* Animations */
@keyframes float-slow {
  0% { transform: translateY(0) scale(1); }
  100% { transform: translateY(-30px) scale(1.1); }
}

@keyframes hover-rack {
  0% { transform: rotateY(-15deg) rotateX(10deg) translateY(0px); }
  100% { transform: rotateY(-18deg) rotateX(12deg) translateY(-15px); }
}

@keyframes sweep {
  0% { left: -100%; }
  100% { left: 200%; }
}

@keyframes blink {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 1; }
}

@keyframes blink-reverse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

@keyframes float-icon {
  0% { transform: translateY(0); }
  100% { transform: translateY(-12px); }
}

/* --- Stats Section --- */
.stats {
  padding: 40px 0;
  z-index: 10;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stats-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--card-radius);
  padding: 30px;
  text-align: center;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.stats-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition-normal);
}

.stats-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-hover);
  box-shadow: 0 10px 30px rgba(99, 102, 241, 0.1);
}

.stats-card:hover::after {
  transform: scaleX(1);
}

.stats-icon {
  font-size: 2rem;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stats-number {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 6px;
}

.stats-label {
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* --- What We Do Section --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--card-radius);
  padding: 40px 30px;
  transition: var(--transition-normal);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.service-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-hover);
  box-shadow: 0 15px 35px rgba(99, 102, 241, 0.15), 0 0 2px rgba(99, 102, 241, 0.5) inset;
}

.service-icon-box {
  width: 60px;
  height: 60px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  color: var(--primary);
  margin-bottom: 24px;
  transition: var(--transition-normal);
}

.service-card:hover .service-icon-box {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: white;
  box-shadow: 0 0 15px rgba(99, 102, 241, 0.4);
  transform: scale(1.05);
}

.service-title {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 14px;
}

.service-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* --- Why Choose ZnthHost --- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--card-radius);
  padding: 30px 24px;
  transition: var(--transition-normal);
  position: relative;
}

.feature-card:hover {
  border-color: rgba(6, 182, 212, 0.4);
  box-shadow: 0 15px 30px rgba(6, 182, 212, 0.1);
  transform: translateY(-5px);
}

.feature-icon-box {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: rgba(6, 182, 212, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--secondary);
  margin-bottom: 20px;
  transition: var(--transition-normal);
}

.feature-card:hover .feature-icon-box {
  background: var(--secondary);
  color: #000;
  box-shadow: 0 0 12px rgba(6, 182, 212, 0.5);
}

.feature-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 650;
  margin-bottom: 10px;
}

.feature-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
}

/* --- Pricing Section --- */
.pricing {
  background: relative;
}

.pricing-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 30px;
  margin-top: 40px;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--card-radius);
  padding: 40px 30px;
  width: 350px;
  display: flex;
  flex-direction: column;
  transition: var(--transition-normal);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  position: relative;
}

.pricing-card.popular {
  border-color: var(--primary);
  box-shadow: 0 15px 45px rgba(99, 102, 241, 0.2);
  background: linear-gradient(180deg, rgba(99, 102, 241, 0.05) 0%, rgba(18, 19, 26, 0.8) 100%), var(--bg-card);
  transform: translateY(-10px);
}

.pricing-card:not(.popular):hover {
  transform: translateY(-5px);
  border-color: var(--border-hover);
  box-shadow: 0 10px 30px rgba(99, 102, 241, 0.1);
}

.pricing-card.popular:hover {
  transform: translateY(-15px);
  box-shadow: 0 20px 50px rgba(99, 102, 241, 0.3);
}

.pricing-badge {
  position: absolute;
  top: 20px;
  right: 20px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: white;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.plan-name {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.plan-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 24px;
  min-height: 40px;
}

.plan-price-wrapper {
  margin-bottom: 28px;
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.plan-currency {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
}

.plan-price {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 800;
  line-height: 1;
}

.plan-period {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.plan-features-title {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.plan-features {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 36px;
  flex-grow: 1;
}

.plan-feature-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
}

.plan-feature-item i {
  color: var(--success);
  font-size: 1.1rem;
  flex-shrink: 0;
}

.plan-feature-item.disabled {
  color: var(--text-muted);
}

.plan-feature-item.disabled i {
  color: var(--text-muted);
}

.plan-btn {
  width: 100%;
}

/* --- FAQ Accordion --- */
.faq-container {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  margin-bottom: 16px;
  overflow: hidden;
  transition: var(--transition-normal);
}

.faq-item:hover {
  border-color: var(--border-hover);
  box-shadow: 0 5px 15px rgba(99, 102, 241, 0.05);
}

.faq-header {
  padding: 24px 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  user-select: none;
}

.faq-question {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
  padding-right: 15px;
}

.faq-icon-toggle {
  width: 30px;
  height: 30px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: var(--transition-normal);
}

.faq-item.active .faq-icon-toggle {
  transform: rotate(180deg);
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.faq-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  background: rgba(255, 255, 255, 0.01);
}

.faq-answer {
  padding: 0 30px 24px 30px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  border-top: 1px solid transparent;
}

.faq-item.active .faq-panel {
  border-top-color: rgba(255, 255, 255, 0.03);
}

/* --- Policies Section --- */
.policies-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.policy-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--card-radius);
  padding: 30px;
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.policy-card:hover {
  transform: translateY(-5px);
  border-color: rgba(168, 85, 247, 0.4);
  box-shadow: 0 10px 25px rgba(168, 85, 247, 0.1);
}

.policy-icon {
  font-size: 1.8rem;
  margin-bottom: 20px;
  color: var(--accent);
}

.policy-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.policy-desc-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  color: var(--text-secondary);
  font-size: 0.88rem;
}

.policy-desc-list li {
  position: relative;
  padding-left: 14px;
  line-height: 1.4;
}

.policy-desc-list li::before {
  content: '•';
  color: var(--accent);
  position: absolute;
  left: 0;
  top: 0;
}

/* --- Contact Section --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
}

.contact-info-container {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.contact-meta-list {
  display: flex;
  flex-direction: column;
  gap: 28px;
  margin-bottom: 40px;
}

.contact-meta-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
}

.contact-meta-icon {
  width: 50px;
  height: 50px;
  background: rgba(99, 102, 241, 0.05);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--primary);
  flex-shrink: 0;
}

.contact-meta-text h4 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.contact-meta-text p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.contact-socials-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.contact-social-icons {
  display: flex;
  gap: 16px;
}

.social-icon-btn {
  width: 44px;
  height: 44px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: var(--transition-normal);
}

.social-icon-btn:hover {
  transform: translateY(-3px);
  color: white;
}

.social-icon-btn.fb:hover { background: #1877f2; border-color: #1877f2; box-shadow: 0 0 10px rgba(24,119,242,0.4); }
.social-icon-btn.in:hover { background: #0a66c2; border-color: #0a66c2; box-shadow: 0 0 10px rgba(10,102,194,0.4); }
.social-icon-btn.git:hover { background: #333; border-color: #555; box-shadow: 0 0 10px rgba(0,0,0,0.4); }
.social-icon-btn.x:hover { background: #000; border-color: #222; box-shadow: 0 0 10px rgba(255,255,255,0.2); }

/* Contact Form Card */
.contact-form-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--card-radius);
  padding: 40px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.form-group-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--text-secondary);
}

.form-input {
  width: 100%;
  background: rgba(10, 11, 16, 0.8);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 14px 18px;
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: var(--transition-normal);
}

.form-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

textarea.form-input {
  resize: vertical;
  min-height: 140px;
}

.form-submit-btn {
  width: 100%;
}

.form-status {
  margin-top: 16px;
  padding: 12px;
  border-radius: 8px;
  font-size: 0.9rem;
  display: none;
  text-align: center;
}

.form-status.success {
  display: block;
  background: rgba(16, 185, 129, 0.1);
  color: var(--success);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.form-status.error {
  display: block;
  background: rgba(239, 68, 68, 0.1);
  color: var(--danger);
  border: 1px solid rgba(239, 68, 68, 0.2);
}

/* --- Footer --- */
footer {
  background-color: #06070a;
  border-top: 1px solid var(--border-color);
  padding: 80px 0 30px 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 48px;
  margin-bottom: 60px;
}

.footer-brand h3 {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 24px;
  max-width: 320px;
}

.footer-col h4 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 24px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--text-primary);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-link {
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: var(--transition-fast);
}

.footer-link:hover {
  color: var(--primary);
  padding-left: 4px;
}

.bottom-footer {
  border-top: 1px solid var(--border-color);
  padding-top: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.copyright {
  color: var(--text-muted);
  font-size: 0.88rem;
}

.bottom-footer-links {
  display: flex;
  gap: 24px;
}

.bottom-footer-link {
  color: var(--text-muted);
  font-size: 0.88rem;
}

.bottom-footer-link:hover {
  color: var(--text-secondary);
}

/* --- Purchase Modal System & fake bKash --- */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(4, 5, 8, 0.8);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  padding: 20px;
}

.modal-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.modal-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  width: 100%;
  max-width: 500px;
  box-shadow: 0 25px 50px rgba(0,0,0,0.5), 0 0 30px rgba(99, 102, 241, 0.15);
  overflow: hidden;
  position: relative;
  transform: scale(0.9);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  display: none;
}

.modal-backdrop.open .modal-card.active-modal {
  transform: scale(1);
  display: block;
}

/* Modal 1: Product Purchase Details Form */
.modal-header {
  padding: 24px 30px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
}

.modal-close-btn {
  font-size: 1.4rem;
  color: var(--text-muted);
  transition: var(--transition-fast);
}

.modal-close-btn:hover {
  color: var(--text-primary);
}

.modal-body {
  padding: 30px;
}

.purchase-summary-box {
  background: rgba(99, 102, 241, 0.05);
  border: 1px solid rgba(99, 102, 241, 0.15);
  border-radius: 12px;
  padding: 18px 24px;
  margin-bottom: 24px;
}

.summary-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
}

.summary-row:last-child {
  margin-bottom: 0;
}

.summary-label {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.summary-val {
  font-weight: 600;
}

.summary-val.price {
  color: var(--secondary);
  font-family: var(--font-heading);
  font-size: 1.15rem;
}

/* Modal 2: Fake bKash Payment Gateway UI */
.bkash-modal {
  max-width: 380px;
  border-radius: 12px;
  border: none;
  background-color: #fff;
  color: #333;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.6);
}

.bkash-header-box {
  background-color: var(--bkash-color);
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: white;
}

.bkash-logo-container {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Custom SVG bkash Logo approximation for high aesthetic */
.bkash-logo-placeholder {
  width: 48px;
  height: 48px;
  background: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
  padding: 4px;
}

.bkash-logo-svg {
  width: 100%;
  height: auto;
}

.bkash-header-text h3 {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.bkash-header-text p {
  font-size: 0.72rem;
  opacity: 0.85;
}

.bkash-merchant-info {
  background-color: #f6f6f6;
  border-bottom: 1px solid #e7e7e7;
  padding: 12px 24px;
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
}

.bkash-m-label {
  color: #777;
  font-weight: 500;
}

.bkash-m-val {
  color: #333;
  font-weight: 700;
}

.bkash-m-val.amount {
  color: var(--bkash-color);
}

.bkash-form-body {
  padding: 24px;
  background-color: #fff;
}

.bkash-instruction-card {
  background-color: #fcf1f6;
  border: 1px solid #f9d8e7;
  border-radius: 8px;
  padding: 12px;
  font-size: 0.8rem;
  color: var(--bkash-dark);
  line-height: 1.4;
  margin-bottom: 20px;
  text-align: center;
  font-weight: 500;
}

.bkash-input-group {
  margin-bottom: 20px;
  position: relative;
}

.bkash-input-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  color: #666;
  margin-bottom: 6px;
  text-transform: uppercase;
}

.bkash-text-input {
  width: 100%;
  border: 2px solid #ddd;
  border-radius: 4px;
  padding: 12px 14px;
  font-size: 1rem;
  color: #333;
  background-color: #fbfbfb;
  text-align: center;
  font-weight: 600;
  letter-spacing: 1px;
  transition: border-color var(--transition-fast);
}

.bkash-text-input:focus {
  border-color: var(--bkash-color);
  background-color: #fff;
}

.bkash-text-input[type="password"] {
  letter-spacing: 6px;
  font-size: 1.2rem;
}

.bkash-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  background-color: #eee;
  border-top: 1px solid #ddd;
}

.bkash-btn {
  padding: 16px;
  font-size: 0.95rem;
  font-weight: 700;
  text-align: center;
  cursor: pointer;
  transition: opacity 0.2s;
  text-transform: uppercase;
}

.bkash-btn:hover {
  opacity: 0.9;
}

.bkash-btn-cancel {
  background-color: #dedede;
  color: #666;
}

.bkash-btn-confirm {
  background-color: var(--bkash-color);
  color: white;
}

.bkash-footer-brand {
  background-color: #fff;
  padding: 12px;
  text-align: center;
  font-size: 0.72rem;
  color: #999;
  border-top: 1px solid #eee;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 6px;
}

.bkash-footer-brand i {
  color: var(--bkash-color);
}

/* Modal 3: Processing loader screen */
.modal-loader-body {
  padding: 60px 40px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.loader-spinner {
  width: 60px;
  height: 60px;
  border: 4px solid rgba(99, 102, 241, 0.1);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 1s infinite linear;
  margin-bottom: 24px;
}

.loader-text {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.loader-sub {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Modal 4: Success Screen */
.modal-success-body {
  padding: 50px 40px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.success-icon-box {
  width: 70px;
  height: 70px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.2rem;
  color: var(--success);
  margin-bottom: 24px;
  box-shadow: 0 0 20px rgba(16, 185, 129, 0.2);
  animation: scale-up-icon 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

@keyframes scale-up-icon {
  0% { transform: scale(0); }
  100% { transform: scale(1); }
}

.success-title {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--success);
}

.success-subtitle {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 30px;
  max-width: 320px;
}

.success-receipt {
  width: 100%;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 20px 24px;
  text-align: left;
  margin-bottom: 30px;
}

.receipt-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  font-size: 0.9rem;
}

.receipt-row:last-child {
  border-bottom: none;
}

.receipt-label {
  color: var(--text-secondary);
}

.receipt-val {
  font-weight: 600;
  color: var(--text-primary);
}

.receipt-val.highlight {
  color: var(--secondary);
}

.success-action-btn {
  width: 100%;
}

/* --- Mobile Responsiveness --- */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 3rem;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .policies-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  section {
    padding: 70px 0;
  }
  .section-title {
    font-size: 2rem;
  }
  
  /* Navigation Menu Overlay */
  .hamburger {
    display: flex;
  }
  
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background-color: var(--bg-secondary);
    border-left: 1px solid var(--border-color);
    flex-direction: column;
    align-items: flex-start;
    padding: 100px 40px;
    gap: 24px;
    z-index: 1050;
    transition: right var(--transition-slow);
    box-shadow: -10px 0 30px rgba(0,0,0,0.5);
  }
  
  .nav-menu.open {
    right: 0;
  }
  
  .hamburger.open span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  
  .hamburger.open span:nth-child(2) {
    opacity: 0;
  }
  
  .hamburger.open span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }
  
  .nav-actions {
    display: none; /* Hide standard buttons in header on mobile */
  }
  
  .nav-menu .mobile-nav-actions {
    display: flex;
    flex-direction: column;
    gap: 16px;
    width: 100%;
    margin-top: 20px;
  }
  
  /* Hero section single column */
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 60px;
    text-align: center;
  }
  
  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-btns {
    justify-content: center;
  }
  
  .server-rack {
    margin: 0 auto;
    transform: rotateY(0) rotateX(5deg);
  }
  
  .fe-1 { left: 10px; }
  .fe-2 { right: 10px; }
  .fe-3 { display: none; }
  
  /* Services & Features */
  .services-grid {
    grid-template-columns: 1fr;
  }
  
  /* Contact section */
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  /* Footer */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .bottom-footer {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 576px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .policies-grid {
    grid-template-columns: 1fr;
  }
  .form-group-row {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .contact-form-card {
    padding: 24px;
  }
  .modal-body {
    padding: 20px;
  }
  .bkash-merchant-info {
    padding: 10px 16px;
  }
  .bkash-form-body {
    padding: 16px;
  }
}