:root {
  --bg-color: #f8fafc; /* Very light slate, almost white */
  --text-primary: #0f172a; /* Slate 900 */
  --text-secondary: #475569; /* Slate 600 */
  --accent-1: #10b981; /* Emerald green */
  --accent-2: #059669; /* Darker green */
  --accent-gradient: linear-gradient(135deg, #34d399, #059669);
  --glass-bg: rgba(255, 255, 255, 0.6);
  --glass-border: rgba(255, 255, 255, 1);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.04);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Typography elements */
h1, h2, h3, h4, .brand-logo {
  font-family: 'Outfit', sans-serif;
}

/* Background Glowing Orbs */
.bg-orbs {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
  background-color: #f0fdf4; /* faint green background */
}
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.7;
  animation: float 20s infinite alternate;
}
.orb-1 {
  top: -10%; left: -10%;
  width: 50vw; height: 50vw;
  background: rgba(52, 211, 153, 0.3); /* Bright green */
}
.orb-2 {
  bottom: -20%; right: -10%;
  width: 60vw; height: 60vw;
  background: rgba(16, 185, 129, 0.2); /* Emerald green */
  animation-delay: -5s;
}

@keyframes float {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(5%, 5%) scale(1.1); }
}

/* Navbar */
nav {
  position: fixed;
  top: 0; width: 100%;
  padding: 20px 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: 0 4px 20px rgba(0,0,0,0.02);
  transition: all 0.3s ease;
}

.brand-logo {
  font-size: 1.5rem;
  font-weight: 700;
  text-decoration: none;
  color: var(--text-primary);
  letter-spacing: -0.5px;
  position: relative;
}
.brand-logo::after {
  content: '.';
  color: var(--accent-1);
}

.nav-links {
  display: flex;
  gap: 30px;
}
.nav-links a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.3s ease;
}
.nav-links a:hover, .nav-links a.active {
  color: var(--accent-2); /* Highlight active in green */
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 0 5%;
  text-align: center;
  position: relative;
}

.hero-tagline {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent-1);
  margin-bottom: 20px;
  font-weight: 700;
}

.hero h1 {
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -2px;
}

.gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: 40px;
}

.btn-primary {
  display: inline-block;
  padding: 14px 32px;
  background: var(--accent-gradient);
  color: white;
  text-decoration: none;
  border-radius: 30px;
  font-weight: 600;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: none;
  cursor: pointer;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(16, 185, 129, 0.3); /* green shadow */
}

/* Sections */
section {
  padding: 120px 5%;
  position: relative;
}
.section-header {
  text-align: center;
  margin-bottom: 60px;
}
.section-header h2 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 16px;
  color: var(--text-primary);
}
.section-header p {
  color: var(--text-secondary);
}

/* Glass Card */
.glass-panel {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  padding: 40px;
  box-shadow: var(--glass-shadow);
}

/* Projects Grid */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
  max-width: 1200px;
  margin: 0 auto;
}

.project-card {
  position: relative;
  border-radius: 24px;
  padding: 40px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  display: flex;
  flex-direction: column;
  gap: 16px;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
}

.project-card:hover {
  transform: translateY(-10px);
  border-color: rgba(16, 185, 129, 0.3);
  box-shadow: 0 20px 40px rgba(16, 185, 129, 0.15); /* light green shadow */
  background: #ffffff;
}

.project-icon {
  font-size: 3rem;
  margin-bottom: 8px;
  display: inline-block;
}

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

.project-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 20px;
  flex-grow: 1;
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent-1);
  font-weight: 600;
  font-size: 0.9rem;
}
.project-link span {
  transition: transform 0.3s ease;
}
.project-card:hover .project-link span {
  transform: translateX(4px);
}

/* Footer */
footer {
  padding: 40px 5%;
  text-align: center;
  border-top: 1px solid var(--glass-border);
  color: var(--text-secondary);
  font-size: 0.9rem;
  background: rgba(255, 255, 255, 0.4);
}

/* Animations */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.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; }
.stagger-5 { transition-delay: 0.5s; }

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
}