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

:root {
  --bg-color: #050505;
  --surface-color: rgba(255, 255, 255, 0.03);
  --surface-border: rgba(255, 255, 255, 0.08);
  --text-primary: #FFFFFF;
  --text-secondary: #A0A0A0;
  --text-tertiary: #666666;
  --accent-glow: rgba(99, 102, 241, 0.15); /* Indigo glow */
  --accent-color: #6366f1;
  --font-main: 'Inter', sans-serif;
  --transition: all 0.3s ease;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

/* Background Glowing Orbs */
.bg-glow {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.bg-glow::before, .bg-glow::after {
  content: '';
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.5;
}

.bg-glow::before {
  top: -10%;
  left: -10%;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
}

.bg-glow::after {
  bottom: -10%;
  right: -10%;
  background: radial-gradient(circle, rgba(168, 85, 247, 0.1) 0%, transparent 70%);
}

/* Utilities */
.container {
  width: 90%;
  max-width: 1100px;
  margin: 0 auto;
}

.text-center { text-align: center; }

/* Buttons & Tags */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.8rem;
  border-radius: 50px;
  font-weight: 500;
  font-family: var(--font-main);
  cursor: pointer;
  transition: var(--transition);
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid transparent;
}

.btn-primary {
  background-color: #FFFFFF;
  color: #000000;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(255, 255, 255, 0.2);
}

.btn-secondary {
  background-color: var(--surface-color);
  color: var(--text-primary);
  border: 1px solid var(--surface-border);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
}

.badge {
  display: inline-block;
  padding: 0.4rem 1rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--surface-border);
  border-radius: 50px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 1.5rem 0;
  z-index: 100;
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(5, 5, 5, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--surface-border);
  padding: 1rem 0;
}

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

.logo {
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -0.5px;
  color: var(--text-primary);
  text-decoration: none;
}

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

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition);
}

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

/* Sections */
section {
  padding: 8rem 0;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 3rem;
  letter-spacing: -1px;
}

/* Hero */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 100px;
}

.hero-content {
  max-width: 800px;
}

.hero h1 {
  font-size: clamp(3rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 1.5rem;
  background: linear-gradient(to right, #FFF, #AAA);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  max-width: 600px;
}

.hero-btns {
  display: flex;
  gap: 1rem;
}

/* Portfolio Grid */
.filter-tabs {
  display: flex;
  gap: 1rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.filter-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 1rem;
  cursor: pointer;
  padding: 0.5rem 0;
  position: relative;
  transition: var(--transition);
}

.filter-btn.active {
  color: var(--text-primary);
}

.filter-btn::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--text-primary);
  transition: width 0.3s ease;
}

.filter-btn.active::after {
  width: 100%;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.portfolio-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4/5;
  background: var(--surface-color);
  border: 1px solid var(--surface-border);
  cursor: pointer;
  display: block; /* for filtering */
}

.portfolio-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, transparent 50%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem;
  opacity: 0;
  transition: var(--transition);
}

.portfolio-card:hover img {
  transform: scale(1.05);
}

.portfolio-card:hover .portfolio-overlay {
  opacity: 1;
}

.portfolio-overlay h4 {
  font-size: 1.1rem;
  margin-bottom: 0.2rem;
}

.portfolio-overlay p {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

/* Services Grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.service-card {
  background: var(--surface-color);
  border: 1px solid var(--surface-border);
  padding: 2.5rem;
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
  transition: var(--transition);
}

.service-card:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-5px);
}

.service-card i {
  font-size: 2rem;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
}

.service-card h3 {
  font-size: 1.4rem;
  margin-bottom: 1rem;
}

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

/* Process Flow Vertical */
.process-timeline {
  display: flex;
  flex-direction: column;
  gap: 3rem;
  position: relative;
  padding-left: 2rem;
}

.process-timeline::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 1px;
  height: 100%;
  background: var(--surface-border);
}

.process-step {
  position: relative;
}

.process-step::before {
  content: '';
  position: absolute;
  top: 6px;
  left: -35px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--text-primary);
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

.process-step h4 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

.process-step p {
  color: var(--text-secondary);
}

/* Why Work Grid */
.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.why-card {
  background: var(--surface-color);
  border: 1px solid var(--surface-border);
  padding: 2rem;
  border-radius: var(--radius-md);
  text-align: center;
}

.why-card h2 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.why-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* Form */
.contact-container {
  max-width: 600px;
}

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

.form-control {
  width: 100%;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--surface-border);
  padding: 1rem 1.5rem;
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-main);
  font-size: 1rem;
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.05);
}

textarea.form-control {
  min-height: 120px;
  resize: vertical;
}

/* Floating WhatsApp */
.whatsapp-float {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background: #25D366;
  color: white;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  box-shadow: 0 10px 30px rgba(37, 211, 102, 0.2);
  z-index: 1000;
  transition: var(--transition);
}

.whatsapp-float:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(37, 211, 102, 0.4);
}

/* Animations */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }

/* Responsive */
@media (max-width: 992px) {
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .services-grid { grid-template-columns: 1fr; }
  .portfolio-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
}