:root {
  --bg-color: #0f172a;
  --surface-color: rgba(30, 41, 59, 0.7);
  --border-color: rgba(255, 255, 255, 0.1);
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --accent-primary: #3b82f6;
  --accent-secondary: #8b5cf6;
  --accent-gradient: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  --font-main: 'Outfit', sans-serif;
}

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

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

/* Glassmorphism utilities */
.glass {
  background: var(--surface-color);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: 16px;
}

/* Header & Navigation */
header {
  position: fixed;
  top: 0;
  width: 100%;
  padding: 20px 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 1000;
  transition: all 0.3s ease;
}

header.scrolled {
  background: rgba(15, 23, 42, 0.9);
  backdrop-filter: blur(10px);
  padding: 15px 5%;
  border-bottom: 1px solid var(--border-color);
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-decoration: none;
}

nav ul {
  display: flex;
  list-style: none;
  gap: 30px;
}

nav a {
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
  position: relative;
}

nav a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 0;
  background: var(--accent-gradient);
  transition: width 0.3s ease;
}

nav a:hover::after {
  width: 100%;
}

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

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 100px 5% 50px;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  left: -10%;
  width: 50vw;
  height: 50vw;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.2) 0%, rgba(15, 23, 42, 0) 70%);
  z-index: -1;
}

.hero h1 {
  font-size: 4rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  background: linear-gradient(to right, #fff, var(--text-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 800px;
  margin-bottom: 40px;
}

.btn {
  display: inline-block;
  padding: 15px 35px;
  background: var(--accent-gradient);
  color: #fff;
  text-decoration: none;
  border-radius: 30px;
  font-weight: 600;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: none;
  cursor: pointer;
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(59, 130, 246, 0.3);
}

/* Sections */
section {
  padding: 100px 5%;
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 50px;
  text-align: center;
  background: linear-gradient(to right, #fff, var(--text-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Cards */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.card {
  padding: 40px;
  transition: transform 0.3s ease, background 0.3s ease;
}

.card:hover {
  transform: translateY(-10px);
  background: rgba(30, 41, 59, 0.9);
}

.card h3 {
  font-size: 1.5rem;
  margin-bottom: 15px;
  color: var(--accent-primary);
}

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

/* Footer */
footer {
  background: rgba(15, 23, 42, 0.8);
  border-top: 1px solid var(--border-color);
  padding: 50px 5% 20px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-col h4 {
  margin-bottom: 20px;
  color: #fff;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.3s ease;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Animations */
.animate-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* Forms */
form {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 600px;
  margin: 0 auto;
}

input, textarea {
  width: 100%;
  padding: 15px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  font-family: var(--font-main);
  transition: border-color 0.3s ease;
}

input:focus, textarea:focus {
  outline: none;
  border-color: var(--accent-primary);
}

/* Content Pages */
.content-page {
  padding-top: 150px;
  max-width: 900px;
  margin: 0 auto;
}

.content-page h1 {
  margin-bottom: 30px;
  color: var(--accent-primary);
}

.content-page h2 {
  margin-top: 40px;
  margin-bottom: 20px;
  color: #fff;
}

.content-page p, .content-page ul {
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.content-page ul {
  padding-left: 20px;
}

.content-page li {
  margin-bottom: 10px;
}