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

:root {
  /* Tech Blue & Orange Gradient System - Light */
  --bg-dark: #f0f9ff;
  --bg-card: rgba(255, 255, 255, 0.6);
  --bg-card-hover: rgba(255, 255, 255, 0.9);
  --primary: #0ea5e9;
  --primary-glow: rgba(14, 165, 233, 0.3);
  --accent: #f97316;
  --accent-glow: rgba(249, 115, 22, 0.3);
  --text-main: #0f172a;
  --text-muted: #475569;
  --border-light: rgba(15, 23, 42, 0.1);
  --glass-blur: blur(16px);
  --gradient-blue: linear-gradient(135deg, #0284c7, #38bdf8);
  --gradient-orange: linear-gradient(135deg, #ea580c, #fb923c);
  --gradient-text: linear-gradient(90deg, #0369a1, #ea580c);
  --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
  font-family: 'Inter', sans-serif;
  background: linear-gradient(135deg, #e0f2fe 0%, #bae6fd 50%, #7dd3fc 100%);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* Abstract Background Glows */
body::before, body::after {
  content: '';
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  z-index: -1;
  opacity: 0.4;
  pointer-events: none;
}
body::before {
  top: -10%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: var(--primary);
}
body::after {
  bottom: 20%;
  right: -5%;
  width: 400px;
  height: 400px;
  background: var(--accent);
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

/* Reusables */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 5%;
}

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

.glass-panel {
  background: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-light);
  border-radius: 16px;
  padding: 2.5rem;
  transition: var(--transition);
}

.glass-panel:hover {
  background: var(--bg-card-hover);
  border-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), 0 0 20px var(--primary-glow);
}

.btn {
  display: inline-block;
  padding: 0.8rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 30px;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn-primary {
  background: var(--gradient-blue);
  color: #fff;
  box-shadow: 0 4px 15px var(--primary-glow);
}

.btn-primary:hover {
  box-shadow: 0 6px 25px var(--primary-glow);
  transform: translateY(-2px);
}

.btn-accent {
  background: var(--gradient-orange);
  color: #fff;
  box-shadow: 0 4px 15px var(--accent-glow);
}

.btn-accent:hover {
  box-shadow: 0 6px 25px var(--accent-glow);
  transform: translateY(-2px);
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 3rem;
  letter-spacing: -0.02em;
}

/* Header */
header {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 100;
  padding: 1.2rem 0;
  background: rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-light);
  transition: var(--transition);
}

header.scrolled {
  padding: 0.8rem 0;
  background: rgba(255, 255, 255, 0.85);
}

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

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 1px;
}

.logo span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 2.5rem;
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-text);
  transition: var(--transition);
}

.nav-links a:hover {
  color: #fff;
}

.nav-links a:hover::after {
  width: 100%;
}

/* Animations */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease-out;
}

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