/* ==========================================================================
   CSS Custom Properties (Variables)
   Theme: Deep Space & Cyber Blue (Professional Digital Marketing)
   ========================================================================== */
:root {
   /* Colors */
   --color-bg-main: #020617;
   --color-bg-secondary: #0f172a;
   --color-bg-tertiary: #1e293b;
   --color-primary: #3b82f6;
   --color-primary-glow: rgba(59, 130, 246, 0.5);
   --color-secondary: #8b5cf6;
   --color-accent: #06b6d4;
   --color-text-main: #f8fafc;
   --color-text-muted: #94a3b8;
   --color-text-dark: #0f172a;
   --color-success: #10b981;
   --color-warning: #f59e0b;
   --color-danger: #ef4444;
   --color-white: #ffffff;
   --color-border: #334155;
   --color-header-bg: #0b1120;
   --color-footer-bg: #080f1a;

   /* Typography */
   --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
   --font-heading: 'Montserrat', system-ui, -apple-system, sans-serif;

   /* Layout & Spacing */
   --container-width: 1280px;
   --section-padding: 6rem 2rem;
   --border-radius-sm: 4px;
   --border-radius-md: 8px;
   --border-radius-lg: 16px;
   --border-radius-xl: 24px;

   /* Transitions & Animations */
   --transition-fast: 0.2s ease;
   --transition-normal: 0.3s ease-in-out;
   --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);

   /* Z-Index */
   --z-header: 1000;
   --z-chat: 999;
   --z-dropdown: 100;
   --z-modal: 1050;
}

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

html {
   scroll-behavior: smooth;
   font-size: 16px;
}

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

h1,
h2,
h3,
h4,
h5,
h6 {
   font-family: var(--font-heading);
   font-weight: 700;
   line-height: 1.2;
   margin-bottom: 1rem;
}

p {
   margin-bottom: 1.5rem;
   color: var(--color-text-muted);
}

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

ul {
   list-style: none;
}

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

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

.section-title {
   font-size: 2.5rem;
   text-align: center;
   margin-bottom: 1rem;
   background: linear-gradient(135deg, var(--color-white), var(--color-primary));
   -webkit-background-clip: text;
   -webkit-text-fill-color: transparent;
}

.section-subtitle {
   text-align: center;
   font-size: 1.125rem;
   max-width: 700px;
   margin: 0 auto 4rem auto;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
   display: inline-flex;
   align-items: center;
   justify-content: center;
   padding: 0.875rem 1.75rem;
   border-radius: var(--border-radius-md);
   font-weight: 600;
   cursor: pointer;
   transition: var(--transition-normal);
   border: none;
   position: relative;
   overflow: hidden;
   z-index: 1;
}

.btn-primary {
   background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
   color: var(--color-white);
   box-shadow: 0 4px 15px var(--color-primary-glow);
}

.btn-primary::before {
   content: '';
   position: absolute;
   top: 0;
   left: 0;
   width: 100%;
   height: 100%;
   background: linear-gradient(135deg, var(--color-secondary), var(--color-primary));
   z-index: -1;
   transition: opacity 0.3s ease;
   opacity: 0;
}

.btn-primary:hover::before {
   opacity: 1;
}

.btn-primary:hover {
   transform: translateY(-2px);
   box-shadow: 0 6px 20px rgba(139, 92, 246, 0.6);
}

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

.btn-outline:hover {
   background: var(--color-primary);
   color: var(--color-white);
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.site-header {
   position: fixed;
   top: 0;
   width: 100%;
   background-color: rgba(11, 17, 32, 0.95);
   backdrop-filter: blur(10px);
   border-bottom: 1px solid var(--color-border);
   z-index: var(--z-header);
   transition: var(--transition-normal);
   padding: 1rem 0;
}

.site-header.scrolled {
   padding: 0.5rem 0;
   box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

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

.logo-container {
   display: flex;
   align-items: center;
   gap: 0.5rem;
}

.logo-container img {
   height: 50px;
   filter: invert(1);
   width: auto;
}

.nav-menu {
   display: flex;
   gap: 2rem;
   align-items: center;
}

.nav-link {
   font-weight: 500;
   color: var(--color-text-main);
   position: relative;
}

.nav-link::after {
   content: '';
   position: absolute;
   width: 0;
   height: 2px;
   bottom: -4px;
   left: 0;
   background-color: var(--color-primary);
   transition: var(--transition-normal);
}

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

.mobile-menu-btn {
   display: none;
   background: none;
   border: none;
   color: var(--color-white);
   font-size: 1.5rem;
   cursor: pointer;
}

/* ==========================================================================
   1. Hero Section (3D Animations & Intro)
   ========================================================================== */
.hero {
   padding: 10rem 0 6rem;
   min-height: 100vh;
   display: flex;
   align-items: center;
   position: relative;
   overflow: hidden;
}

.hero-bg {
   position: absolute;
   top: 0;
   left: 0;
   right: 0;
   bottom: 0;
   background: radial-gradient(circle at 50% 50%, var(--color-bg-secondary) 0%, var(--color-bg-main) 100%);
   z-index: -2;
}

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

.hero-content h1 {
   font-size: 3.5rem;
   margin-bottom: 1.5rem;
   line-height: 1.1;
   background: linear-gradient(to right, #fff, var(--color-primary), var(--color-accent));
   -webkit-background-clip: text;
   -webkit-text-fill-color: transparent;
   animation: slideUp 1s ease-out forwards;
}

.hero-content p {
   font-size: 1.25rem;
   margin-bottom: 2rem;
   animation: slideUp 1s ease-out 0.2s forwards;
   opacity: 0;
}

.hero-buttons {
   display: flex;
   gap: 1rem;
   animation: slideUp 1s ease-out 0.4s forwards;
   opacity: 0;
}

.hero-visual {
   position: relative;
   perspective: 1000px;
   height: 400px;
}

/* 3D Floating Elements */
.cube-container {
   position: absolute;
   width: 100%;
   height: 100%;
   transform-style: preserve-3d;
   animation: float 6s ease-in-out infinite;
}

.glass-card {
   position: absolute;
   background: rgba(255, 255, 255, 0.03);
   backdrop-filter: blur(10px);
   border: 1px solid rgba(255, 255, 255, 0.1);
   border-radius: var(--border-radius-lg);
   padding: 1.5rem;
   box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
   transform-style: preserve-3d;
}

.card-1 {
   top: 10%;
   right: 10%;
   width: 250px;
   transform: translateZ(50px) rotateY(-15deg);
   animation: floatSlow 8s ease-in-out infinite alternate;
}

.card-2 {
   bottom: 10%;
   left: 10%;
   width: 200px;
   transform: translateZ(100px) rotateY(15deg) rotateX(10deg);
   animation: floatSlow 7s ease-in-out infinite alternate-reverse;
}

/* ==========================================================================
   2. Features / Stats Section
   ========================================================================== */
.stats {
   padding: 4rem 0;
   background-color: var(--color-bg-secondary);
   border-top: 1px solid var(--color-border);
   border-bottom: 1px solid var(--color-border);
}

.stats-grid {
   display: grid;
   grid-template-columns: repeat(4, 1fr);
   gap: 2rem;
   text-align: center;
}

.stat-item h3 {
   font-size: 2.5rem;
   color: var(--color-primary);
   margin-bottom: 0.5rem;
}

/* ==========================================================================
   3. About Us Section
   ========================================================================== */
.about {
   padding: var(--section-padding);
}

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

.about-img {
   position: relative;
   border-radius: var(--border-radius-xl);
   overflow: hidden;
   box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.about-img::after {
   content: '';
   position: absolute;
   inset: 0;
   background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(139, 92, 246, 0.2));
}

/* ==========================================================================
   4. Services Section (3D Hover Effects)
   ========================================================================== */
.services {
   padding: var(--section-padding);
   background-color: var(--color-bg-secondary);
}

.services-grid {
   display: grid;
   grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
   gap: 2rem;
}

.service-card {
   background: var(--color-bg-tertiary);
   border: 1px solid var(--color-border);
   border-radius: var(--border-radius-lg);
   padding: 2.5rem;
   transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.4s ease;
   position: relative;
   overflow: hidden;
}

.service-card:hover {
   transform: translateY(-10px) scale(1.02);
   box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
   border-color: var(--color-primary);
}

.service-icon {
   width: 60px;
   height: 60px;
   background: rgba(59, 130, 246, 0.1);
   border-radius: 50%;
   display: flex;
   align-items: center;
   justify-content: center;
   margin-bottom: 1.5rem;
   color: var(--color-primary);
}

.service-card::before {
   content: '';
   position: absolute;
   top: -50%;
   left: -50%;
   width: 200%;
   height: 200%;
   background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 60%);
   opacity: 0;
   transition: opacity 0.5s;
   pointer-events: none;
}

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

/* ==========================================================================
   5. Calculator Section (Interactive)
   ========================================================================== */
.calculator-section {
   padding: var(--section-padding);
   background: linear-gradient(135deg, var(--color-bg-main), var(--color-bg-secondary));
}

.calc-container {
   max-width: 800px;
   margin: 0 auto;
   background: var(--color-bg-tertiary);
   padding: 3rem;
   border-radius: var(--border-radius-xl);
   border: 1px solid var(--color-border);
   box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
}

.calc-group {
   margin-bottom: 1.5rem;
}

.calc-group label {
   display: block;
   margin-bottom: 0.5rem;
   font-weight: 600;
}

.calc-group input[type="range"] {
   width: 100%;
   appearance: none;
   background: var(--color-border);
   height: 6px;
   border-radius: 3px;
   outline: none;
}

.calc-group input[type="range"]::-webkit-slider-thumb {
   appearance: none;
   width: 20px;
   height: 20px;
   background: var(--color-primary);
   border-radius: 50%;
   cursor: pointer;
}

.calc-result {
   margin-top: 2rem;
   padding: 1.5rem;
   background: rgba(16, 185, 129, 0.1);
   border: 1px solid var(--color-success);
   border-radius: var(--border-radius-md);
   text-align: center;
}

.calc-result h4 {
   color: var(--color-success);
   font-size: 2rem;
   margin: 0;
}

/* ==========================================================================
   6. Why Choose Us Section
   ========================================================================== */
.why-choose {
   padding: var(--section-padding);
}

.timeline {
   position: relative;
   max-width: 800px;
   margin: 0 auto;
}

.timeline::before {
   content: '';
   position: absolute;
   top: 0;
   left: 50%;
   width: 2px;
   height: 100%;
   background: var(--color-border);
   transform: translateX(-50%);
}

.timeline-item {
   position: relative;
   margin-bottom: 3rem;
   width: 50%;
   padding-right: 3rem;
}

.timeline-item:nth-child(even) {
   margin-left: auto;
   padding-right: 0;
   padding-left: 3rem;
}

.timeline-dot {
   position: absolute;
   right: -10px;
   top: 0;
   width: 20px;
   height: 20px;
   background: var(--color-primary);
   border-radius: 50%;
   box-shadow: 0 0 10px var(--color-primary-glow);
}

.timeline-item:nth-child(even) .timeline-dot {
   left: -10px;
   right: auto;
}

.timeline-content {
   background: var(--color-bg-secondary);
   padding: 1.5rem;
   border-radius: var(--border-radius-lg);
   border: 1px solid var(--color-border);
}

/* ==========================================================================
   7. Industry Specific Section
   ========================================================================== */
.industries {
   padding: var(--section-padding);
   background-color: var(--color-bg-secondary);
}

.industry-grid {
   display: grid;
   grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
   gap: 1.5rem;
}

.industry-card {
   text-align: center;
   padding: 2rem;
   background: var(--color-bg-main);
   border-radius: var(--border-radius-md);
   border: 1px solid var(--color-border);
   transition: var(--transition-normal);
}

.industry-card:hover {
   background: var(--color-primary);
   color: var(--color-white);
   transform: translateY(-5px);
}

.industry-card:hover p {
   color: var(--color-white);
}

/* ==========================================================================
   8. Sample Campaign Reports (CSS Charts)
   ========================================================================== */
.reports {
   padding: var(--section-padding);
}

.chart-container {
   display: flex;
   align-items: flex-end;
   justify-content: space-around;
   height: 300px;
   background: var(--color-bg-secondary);
   padding: 2rem;
   border-radius: var(--border-radius-lg);
   border: 1px solid var(--color-border);
   margin-top: 2rem;
}

.bar {
   width: 60px;
   background: linear-gradient(to top, var(--color-primary), var(--color-secondary));
   border-radius: 4px 4px 0 0;
   position: relative;
   animation: growUp 1.5s ease-out forwards;
   transform-origin: bottom;
}

.bar::after {
   content: attr(data-value);
   position: absolute;
   top: -25px;
   width: 100%;
   text-align: center;
   font-weight: bold;
   color: var(--color-text-main);
}

.bar-label {
   position: absolute;
   bottom: -30px;
   width: 100%;
   text-align: center;
   font-size: 0.875rem;
   color: var(--color-text-muted);
}

/* ==========================================================================
   9. Testimonials Section
   ========================================================================== */
.testimonials {
   padding: var(--section-padding);
   background-color: var(--color-bg-secondary);
}

.testi-grid {
   display: grid;
   grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
   gap: 2rem;
}

.testi-card {
   background: var(--color-bg-tertiary);
   padding: 2rem;
   border-radius: var(--border-radius-lg);
   position: relative;
}

.testi-card::before {
   content: '"';
   position: absolute;
   top: -10px;
   left: 20px;
   font-size: 5rem;
   color: rgba(255, 255, 255, 0.05);
   font-family: serif;
}

.client-info {
   display: flex;
   align-items: center;
   gap: 1rem;
   margin-top: 1.5rem;
}

.client-avatar {
   width: 50px;
   height: 50px;
   border-radius: 50%;
   background: var(--color-primary);
   display: flex;
   align-items: center;
   justify-content: center;
   font-weight: bold;
}

/* ==========================================================================
   10. Contact CTA Section
   ========================================================================== */
.contact-cta {
   padding: var(--section-padding);
   text-align: center;
   background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(139, 92, 246, 0.1));
   border-top: 1px solid var(--color-border);
}

.cta-form {
   max-width: 600px;
   margin: 2rem auto 0;
   display: flex;
   flex-direction: column;
   gap: 1rem;
}

.input-field {
   width: 100%;
   padding: 1rem;
   border-radius: var(--border-radius-md);
   border: 1px solid var(--color-border);
   background: var(--color-bg-secondary);
   color: var(--color-text-main);
   font-family: inherit;
}

.input-field:focus {
   outline: none;
   border-color: var(--color-primary);
   box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

textarea.input-field {
   resize: vertical;
   min-height: 120px;
}

/* ==========================================================================
   11. Footer (Strict Consistency)
   ========================================================================== */
.site-footer {
   background-color: var(--color-footer-bg);
   padding: 4rem 0 2rem;
   border-top: 1px solid var(--color-border);
}

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

.footer-logo img {
   height: 50px;
   filter: invert(1);
   margin-bottom: 1.5rem;
}

.footer-col h4 {
   font-size: 1.25rem;
   margin-bottom: 1.5rem;
   color: var(--color-white);
}

.footer-links li {
   margin-bottom: 0.75rem;
}

.footer-links a:hover {
   color: var(--color-primary);
   padding-left: 5px;
}

.footer-bottom {
   text-align: center;
   padding-top: 2rem;
   border-top: 1px solid var(--color-border);
   color: var(--color-text-muted);
}

/* ==========================================================================
   12. Live Chat Widget
   ========================================================================== */
.chat-widget {
   position: fixed;
   bottom: 2rem;
   right: 2rem;
   z-index: var(--z-chat);
}

.chat-btn {
   width: 60px;
   height: 60px;
   border-radius: 50%;
   background: var(--color-primary);
   color: white;
   border: none;
   cursor: pointer;
   box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
   display: flex;
   align-items: center;
   justify-content: center;
   transition: transform 0.3s;
}

.chat-btn:hover {
   transform: scale(1.1);
}

.chat-window {
   position: absolute;
   bottom: 80px;
   right: 0;
   width: 300px;
   background: var(--color-bg-secondary);
   border: 1px solid var(--color-border);
   border-radius: var(--border-radius-lg);
   overflow: hidden;
   display: none;
   flex-direction: column;
   box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}

.chat-window.active {
   display: flex;
   animation: slideUp 0.3s ease-out;
}

.chat-header {
   background: var(--color-primary);
   padding: 1rem;
   color: white;
   font-weight: bold;
   display: flex;
   justify-content: space-between;
}

.close-chat {
   background: none;
   border: none;
   color: white;
   cursor: pointer;
}

.chat-body {
   padding: 1rem;
   height: 200px;
   overflow-y: auto;
}

.chat-msg {
   background: var(--color-bg-tertiary);
   padding: 0.75rem;
   border-radius: 8px;
   margin-bottom: 0.5rem;
   font-size: 0.875rem;
}

.chat-input {
   display: flex;
   padding: 0.5rem;
   border-top: 1px solid var(--color-border);
}

.chat-input input {
   flex: 1;
   background: transparent;
   border: none;
   color: white;
   padding: 0.5rem;
   outline: none;
}

.chat-input button {
   background: var(--color-primary);
   border: none;
   color: white;
   padding: 0.5rem 1rem;
   border-radius: 4px;
   cursor: pointer;
}

/* ==========================================================================
   Legal Pages Specific Styling
   ========================================================================== */
.legal-page {
   padding: 10rem 0 6rem;
   min-height: 100vh;
}

.legal-content {
   background: var(--color-bg-secondary);
   padding: 3rem;
   border-radius: var(--border-radius-lg);
   border: 1px solid var(--color-border);
}

.legal-content h1 {
   font-size: 2.5rem;
   margin-bottom: 2rem;
   color: var(--color-primary);
   border-bottom: 1px solid var(--color-border);
   padding-bottom: 1rem;
}

.legal-content h2 {
   font-size: 1.5rem;
   margin-top: 2rem;
   margin-bottom: 1rem;
   color: var(--color-white);
}

.legal-content p {
   margin-bottom: 1rem;
}

.legal-content ul {
   list-style: disc;
   margin-left: 2rem;
   margin-bottom: 1.5rem;
   color: var(--color-text-muted);
}

.legal-content li {
   margin-bottom: 0.5rem;
}

/* ==========================================================================
   Animations & Keyframes
   ========================================================================== */
@keyframes slideUp {
   from {
      opacity: 0;
      transform: translateY(30px);
   }

   to {
      opacity: 1;
      transform: translateY(0);
   }
}

@keyframes float {
   0% {
      transform: translateY(0px) rotateX(0) rotateY(0);
   }

   50% {
      transform: translateY(-20px) rotateX(5deg) rotateY(5deg);
   }

   100% {
      transform: translateY(0px) rotateX(0) rotateY(0);
   }
}

@keyframes floatSlow {
   0% {
      transform: translateZ(50px) translateY(0);
   }

   100% {
      transform: translateZ(50px) translateY(-30px);
   }
}

@keyframes growUp {
   from {
      transform: scaleY(0);
   }

   to {
      transform: scaleY(1);
   }
}

/* Intersection Observer Reveal Classes */
.reveal {
   opacity: 0;
   transform: translateY(40px);
   transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}

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

/* ==========================================================================
   Media Queries
   ========================================================================== */
@media (max-width: 1024px) {

   .hero-grid,
   .about-grid {
      grid-template-columns: 1fr;
      text-align: center;
   }

   .hero-buttons {
      justify-content: center;
   }

   .stats-grid {
      grid-template-columns: repeat(2, 1fr);
   }

   .footer-grid {
      grid-template-columns: 1fr 1fr;
   }

   .timeline::before {
      left: 0;
   }

   .timeline-item {
      width: 100%;
      padding-left: 2rem;
      padding-right: 0;
   }

   .timeline-item:nth-child(even) {
      padding-left: 2rem;
   }

   .timeline-dot {
      left: -10px;
      right: auto;
   }

   .timeline-item:nth-child(even) .timeline-dot {
      left: -10px;
   }
}

@media (max-width: 768px) {
   .nav-menu {
      position: fixed;
      top: 70px;
      left: -100%;
      width: 100%;
      height: calc(100vh - 70px);
      background: var(--color-bg-secondary);
      flex-direction: column;
      padding: 2rem;
      transition: 0.3s ease;
   }

   .nav-menu.active {
      left: 0;
   }

   .mobile-menu-btn {
      display: block;
   }

   .section-title {
      font-size: 2rem;
   }

   .footer-grid {
      grid-template-columns: 1fr;
   }

   .chart-container {
      flex-direction: column;
      height: auto;
      align-items: center;
      gap: 3rem;
   }

   .bar {
      width: 100%;
      height: 30px !important;
      transform-origin: left;
      animation: growRight 1.5s ease-out forwards;
   }

   .bar::after {
      top: 5px;
      left: 10px;
      width: auto;
   }

   .bar-label {
      bottom: auto;
      top: -25px;
      left: 0;
      text-align: left;
   }
}

@keyframes growRight {
   from {
      transform: scaleX(0);
   }

   to {
      transform: scaleX(1);
   }
}

@media (max-width: 480px) {
   .hero-content h1 {
      font-size: 2.5rem;
   }

   .stats-grid {
      grid-template-columns: 1fr;
   }

   .btn {
      width: 100%;
   }

   .hero-buttons {
      flex-direction: column;
   }
}