:root {
  --primary-color: #0f172a;
  --secondary-color: #334155;
  --accent-color: #2563eb;
  --bg-color: #ffffff;
  --surface-color: #f8fafc;
  --surface-hover: #f1f5f9;
  --border-color: #e2e8f0;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.03);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.05);
  --shadow-premium: 0 30px 60px -10px rgba(0, 0, 0, 0.08);
  --font-heading: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --container-max: 1320px;
}

[data-theme="dark"] {
  --primary-color: #f8fafc;
  --secondary-color: #cbd5e1;
  --accent-color: #3b82f6;
  --bg-color: #020617;
  --surface-color: #0f172a;
  --surface-hover: #1e293b;
  --border-color: #1e293b;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.4);
  --shadow-premium: 0 30px 60px -10px rgba(0, 0, 0, 0.5);
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
  cursor: none; /* For custom cursor */
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-main);
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

p {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  font-size: 1.125rem;
}

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

a:hover {
  color: var(--primary-color);
}

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

/* Custom Cursor */
.custom-cursor {
  position: fixed;
  top: 0;
  left: 0;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background-color: rgba(15, 23, 42, 0.3);
  backdrop-filter: blur(2px);
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: width 0.2s, height 0.2s, background-color 0.2s;
}

[data-theme="dark"] .custom-cursor {
  background-color: rgba(248, 250, 252, 0.3);
}

.custom-cursor.hover {
  width: 50px;
  height: 50px;
  background-color: rgba(37, 99, 235, 0.2);
  border: 1px solid var(--accent-color);
}

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

.text-gradient-accent {
  background: linear-gradient(135deg, var(--accent-color) 0%, #60a5fa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.display-1 { font-size: clamp(3rem, 6vw, 5rem); font-weight: 800; letter-spacing: -0.03em; line-height: 1.1; }
.display-2 { font-size: clamp(2.5rem, 5vw, 4rem); font-weight: 700; letter-spacing: -0.02em; }
.display-3 { font-size: clamp(2rem, 4vw, 3rem); font-weight: 700; }

/* Buttons */
.btn-premium {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 1rem 2rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.125rem;
  border-radius: 100px;
  border: none;
  cursor: none;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn-primary {
  background-color: var(--text-main);
  color: var(--bg-color);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px -10px var(--text-main);
  background-color: var(--accent-color);
  color: #fff;
}

.btn-outline {
  background-color: transparent;
  color: var(--text-main);
  border: 1px solid var(--border-color);
}

.btn-outline:hover {
  border-color: var(--text-main);
  background-color: var(--surface-color);
  transform: translateY(-2px);
}

/* Layout & Containers */
.section-padding {
  padding: 8rem 0;
}

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

/* Header & Navbar */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: var(--transition);
  padding: 1.5rem 0;
  background: transparent;
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 1rem 0;
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

[data-theme="dark"] .header.scrolled {
  background: rgba(2, 6, 23, 0.8);
}

.navbar-brand {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

.nav-link {
  font-weight: 500;
  color: var(--text-main);
  margin: 0 1rem;
  position: relative;
  font-size: 1.05rem;
}

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

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

/* Cards */
.premium-card {
  background: var(--surface-color);
  border-radius: var(--radius-lg);
  padding: 3rem;
  border: 1px solid var(--border-color);
  transition: var(--transition);
  height: 100%;
  position: relative;
  overflow: hidden;
}

.premium-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-premium);
  border-color: var(--accent-color);
}

.card-icon {
  width: 64px;
  height: 64px;
  background: var(--bg-color);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 2rem;
  border: 1px solid var(--border-color);
  color: var(--accent-color);
  transition: var(--transition);
}

.premium-card:hover .card-icon {
  background: var(--accent-color);
  color: #fff;
  transform: scale(1.1) rotate(5deg);
}

/* Hero Section */
.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: 6rem;
  overflow: hidden;
}

.hero-bg-shapes {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow: hidden;
}

.shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
  animation: float 10s infinite ease-in-out alternate;
}

.shape-1 {
  width: 500px;
  height: 500px;
  background: var(--accent-color);
  top: -10%;
  right: -5%;
}

.shape-2 {
  width: 400px;
  height: 400px;
  background: #a855f7;
  bottom: 10%;
  left: -5%;
  animation-delay: -5s;
}

@keyframes float {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(30px, -50px) scale(1.1); }
}

.hero-mockup {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-premium);
  transform: perspective(1000px) rotateY(-15deg) rotateX(5deg);
  transition: var(--transition);
}

.hero-mockup:hover {
  transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}

.hero-mockup img {
  width: 100%;
  display: block;
}

/* Bento Grid */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1.5rem;
}

.bento-item {
  background: var(--surface-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  border: 1px solid var(--border-color);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.bento-item:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-lg);
}

.bento-item.large {
  grid-column: span 8;
}

.bento-item.small {
  grid-column: span 4;
}

@media (max-width: 991px) {
  .bento-item.large, .bento-item.small {
    grid-column: span 12;
  }
}

/* Animations (Reveal) */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

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

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  left: 24px;
  height: 100%;
  width: 2px;
  background: var(--border-color);
}

.timeline-item {
  position: relative;
  padding-left: 5rem;
  margin-bottom: 4rem;
}

.timeline-number {
  position: absolute;
  left: 0;
  top: 0;
  width: 50px;
  height: 50px;
  background: var(--surface-color);
  border: 2px solid var(--accent-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--accent-color);
  z-index: 1;
}

/* Footer */
.footer {
  background: var(--surface-color);
  padding: 6rem 0 2rem;
  border-top: 1px solid var(--border-color);
}

.footer-heading {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
  color: var(--text-main);
}

.footer-link {
  color: var(--text-muted);
  display: block;
  margin-bottom: 0.75rem;
  transition: var(--transition);
}

.footer-link:hover {
  color: var(--accent-color);
  transform: translateX(5px);
}

.social-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-color);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  margin-right: 0.5rem;
  transition: var(--transition);
}

.social-icon:hover {
  background: var(--accent-color);
  color: #fff;
  border-color: var(--accent-color);
  transform: translateY(-3px);
}

/* Utilities */
.glass-panel {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

[data-theme="dark"] .glass-panel {
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.badge-premium {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 100px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 1.5rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg-color);
}
::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* Loader */
.preloader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-color);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99999;
  transition: opacity 0.5s ease;
}

.loader-brand {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0% { opacity: 0.5; transform: scale(0.95); }
  50% { opacity: 1; transform: scale(1); }
  100% { opacity: 0.5; transform: scale(0.95); }
}

/* Floating Elements */
.floating-whatsapp {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 60px;
  height: 60px;
  background: #25D366;
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  transition: var(--transition);
  animation: bounce 2s infinite;
}

.floating-whatsapp:hover {
  transform: scale(1.1);
  color: #fff;
  animation: none;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
  40% { transform: translateY(-10px); }
  60% { transform: translateY(-5px); }
}

/* Slider Overrides for layout */
.logo-slider {
  overflow: hidden;
  white-space: nowrap;
  position: relative;
  padding: 3rem 0;
}
.logo-slider::before, .logo-slider::after {
  content: '';
  position: absolute;
  top: 0;
  width: 150px;
  height: 100%;
  z-index: 2;
}
.logo-slider::before {
  left: 0;
  background: linear-gradient(to right, var(--bg-color) 0%, rgba(255,255,255,0) 100%);
}
.logo-slider::after {
  right: 0;
  background: linear-gradient(to left, var(--bg-color) 0%, rgba(255,255,255,0) 100%);
}
.logo-track {
  display: inline-block;
  animation: slide 30s linear infinite;
}
.logo-track img {
  height: 40px;
  margin: 0 3rem;
  display: inline-block;
  filter: grayscale(100%) opacity(0.6);
  transition: var(--transition);
}
.logo-track img:hover {
  filter: grayscale(0%) opacity(1);
}
@keyframes slide {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* Portfolio Hover Overlay */
.portfolio-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: none;
}
.portfolio-card img {
  transition: transform 0.6s ease;
}
.portfolio-card:hover img {
  transform: scale(1.05);
}
.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 2rem;
  opacity: 0;
  transition: var(--transition);
}
.portfolio-card:hover .portfolio-overlay {
  opacity: 1;
}
.portfolio-title {
  color: #fff;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  transform: translateY(20px);
  transition: var(--transition);
}
.portfolio-card:hover .portfolio-title {
  transform: translateY(0);
}

/* Numbers counter */
.counter-box {
  text-align: center;
  padding: 2rem;
}
.counter-number {
  font-size: 4rem;
  font-family: var(--font-heading);
  font-weight: 800;
  line-height: 1;
  margin-bottom: 0.5rem;
  color: var(--text-main);
}

.premium-card img {
    width: 60px;
    height: 60px;
}

/* Mobile Menu Support */
@media (max-width: 991px) {
    .navbar-collapse {
        background-color: var(--bg-color);
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        padding: 2rem;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
        z-index: 1050;
        max-height: calc(100vh - 80px);
        overflow-y: auto;
    }
    
    [data-theme="dark"] .navbar-collapse {
        background-color: var(--bg-color);
    }
    
    .navbar-nav .nav-link {
        margin: 0.5rem 0;
        font-size: 1.25rem;
    }
}