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

:root {
  /* Colors - Premium Fintech Palette */
  --color-primary: #0a192f;   /* Deep Navy */
  --color-secondary: #172a45; /* Lighter Navy for cards/sections */
  --color-accent: #64ffda;    /* Teal/Cyan for highlights (tech feel) */
  --color-gold: #fbbf24;      /* Subtle Gold for premium accents */
  --color-text-main: #e6f1ff; /* Off-white for text on dark */
  --color-text-muted: #8892b0;
  --color-white: #ffffff;
  --color-bg: #020c1b;        /* Very dark navy background */
  
  /* Typography */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Spacing */
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 8rem;

  /* Transitions */
  --transition: all 0.3s cubic-bezier(0.645, 0.045, 0.355, 1);
  
  /* Shadows */
  --shadow-sm: 0 10px 30px -10px rgba(2,12,27,0.7);
  --shadow-card: 0 10px 30px -15px rgba(2,12,27,0.7);
}

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

html {
  scroll-behavior: smooth;
}

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

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

ul {
  list-style: none;
}

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

/* Layout Utilities */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--spacing-xl) 0;
}

.flex {
  display: flex;
}

.flex-center {
  display: flex;
  justify-content: center;
  align-items: center;
}

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

.grid {
  display: grid;
  gap: var(--spacing-md);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-text-main);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  line-height: 1.1;
}

h1 {
  font-size: clamp(40px, 8vw, 80px);
}

h2 {
  font-size: clamp(26px, 5vw, 42px);
  position: relative;
  display: inline-block;
  margin-bottom: var(--spacing-lg);
}

h2::after {
  content: "";
  display: block;
  width: 60px;
  height: 4px;
  background-color: var(--color-accent);
  margin-top: 10px;
  border-radius: 2px;
}

p {
  color: var(--color-text-muted);
  font-size: 1.1rem;
  margin-bottom: var(--spacing-sm);
  max-width: 600px;
}

/* Premium Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 28px;
  border-radius: 4px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
}

.btn-primary {
  background-color: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.btn-primary:hover {
  background-color: rgba(100, 255, 218, 0.1);
  transform: translateY(-3px);
}

.btn-outline {
  color: var(--color-text-main);
  border-color: var(--color-text-muted);
}

.btn-outline:hover {
  border-color: var(--color-text-main);
  background-color: rgba(255,255,255,0.05);
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  height: 80px;
  background-color: rgba(10, 25, 47, 0.85);
  backdrop-filter: blur(10px);
  z-index: 1000;
  box-shadow: 0 10px 30px -10px rgba(0,0,0,0.3);
  transition: var(--transition);
}

.navbar .container {
  height: 100%;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-accent);
}

.nav-links {
  display: flex;
  gap: var(--spacing-md);
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-main);
}

.nav-link:hover {
  color: var(--color-accent);
}

.nav-link span {
  color: var(--color-accent);
  margin-right: 5px;
}

.hamburger {
  display: none;
  cursor: pointer;
}

.bar {
  display: block;
  width: 25px;
  height: 3px;
  margin: 5px auto;
  transition: all 0.3s ease-in-out;
  background-color: var(--color-accent);
}

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

.hero-subtitle {
  color: var(--color-accent);
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
}

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

.hero-highlights li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 10px;
  color: var(--color-text-muted);
}

.hero-highlights li::before {
  content: "▹";
  position: absolute;
  left: 0;
  color: var(--color-accent);
}

/* Cards (Experience, Case Studies) */
.card {
  background-color: var(--color-secondary);
  padding: var(--spacing-md);
  border-radius: 8px;
  transition: var(--transition);
  box-shadow: var(--shadow-card);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 30px -15px rgba(2,12,27,0.7);
}

.card-header span {
  color: var(--color-accent);
  font-family: var(--font-heading);
  font-size: 0.9rem;
}

/* Footer */
footer {
  text-align: center;
  padding: var(--spacing-md);
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-top: auto;
}

footer a:hover {
  color: var(--color-accent);
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.8s ease forwards;
}

/* Responsive */
@media (max-width: 768px) {
  .hamburger {
    display: block;
  }

  .nav-links {
    position: fixed;
    left: -100%;
    top: 80px;
    gap: 0;
    flex-direction: column;
    background-color: var(--color-secondary);
    width: 100%;
    text-align: center;
    transition: 0.3s;
    box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
  }

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

  .nav-link {
    display: block;
    margin: 2.5rem 0;
  }
}