:root {
  /* Colors */
  --bg-color: #0A0F1C;
  /* Dark blue premium */
  --bg-secondary: #121A2F;
  /* Slightly lighter blue */
  --text-primary: #F3F4F6;
  /* Light gray */
  --text-secondary: #9CA3AF;
  --accent-color: #694eb4;
  /* Purple */
  --accent-hover: #563d99;
  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.08);

  /* Typography */
  --font-main: 'Inter', sans-serif;

  /* Transitions */
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

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

/* Typography styles */
h1,
h2,
h3,
h4 {
  font-weight: 600;
  line-height: 1.2;
}

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

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

.highlight {
  color: var(--accent-color);
}

/* Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 5%;
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 3rem;
  text-align: center;
}

/* Buttons */
.btn-primary {
  display: inline-block;
  background-color: var(--accent-color);
  color: #fff;
  padding: 0.8rem 1.8rem;
  border-radius: 6px;
  font-weight: 600;
  box-shadow: 0 4px 14px rgba(105, 78, 180, 0.3);
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(105, 78, 180, 0.4);
}

.btn-primary-outline {
  display: inline-block;
  background-color: transparent;
  color: var(--text-primary);
  padding: 0.8rem 1.8rem;
  border: 1px solid var(--glass-border);
  border-radius: 6px;
  font-weight: 600;
}

.btn-primary-outline:hover {
  background-color: var(--glass-bg);
  border-color: var(--text-primary);
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  padding: 1.5rem 0;
  background: rgba(10, 15, 28, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
  z-index: 1000;
  transition: var(--transition);
}

.navbar.scrolled {
  padding: 1rem 0;
  background: rgba(10, 15, 28, 0.95);
}

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

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.logo-code {
  color: var(--text-primary);
}

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

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

.nav-links a:not(.btn-primary-outline):hover {
  color: var(--accent-color);
}

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

.hero-content {
  max-width: 800px;
  z-index: 2;
  position: relative;
}

.badge {
  display: inline-block;
  padding: 0.4em 1em;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--accent-color);
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: clamp(3rem, 5vw, 4.5rem);
  margin-bottom: 1.5rem;
  letter-spacing: -1px;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  max-width: 600px;
}

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

/* Hero Background Elements */
.hero-graphic {
  position: absolute;
  top: 50%;
  right: 0%;
  transform: translateY(-50%);
  width: 50%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.glow-orb {
  position: absolute;
  top: 20%;
  right: 10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(105, 78, 180, 0.15) 0%, rgba(10, 15, 28, 0) 70%);
  border-radius: 50%;
  filter: blur(40px);
}

.glow-orb-2 {
  position: absolute;
  bottom: 10%;
  left: 10%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.1) 0%, rgba(10, 15, 28, 0) 70%);
  /* subtle violet */
  border-radius: 50%;
  filter: blur(40px);
}

/* Portfolio Section */
.portfolio {
  padding: 6rem 0;
  background-color: var(--bg-secondary);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2.5rem;
}

.project-card {
  background: var(--bg-color);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  overflow: hidden;
  transition: var(--transition);
  position: relative;
}

.project-card:hover {
  transform: translateY(-8px);
  border-color: rgba(255, 255, 255, 0.15);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.card-image-wrapper {
  position: relative;
  width: 100%;
  height: 240px;
  overflow: hidden;
}

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

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

.card-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to top, var(--bg-color) 0%, transparent 100%);
  opacity: 0.8;
}

.card-content {
  padding: 2rem;
  position: relative;
  z-index: 10;
}

.card-content h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.card-content p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.5;
}

.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.store-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-primary);
  transition: var(--transition);
}

.store-badge svg {
  opacity: 0.8;
  transition: var(--transition);
}

.store-badge:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--accent-color);
  transform: translateY(-2px);
  color: var(--accent-color);
}

.store-badge:hover svg {
  opacity: 1;
  fill: var(--accent-color);
}

/* About Section */
.about {
  padding: 8rem 0;
}

.about-container {
  display: flex;
  justify-content: center;
  text-align: center;
}

.about-text {
  max-width: 800px;
}

.about-text p {
  color: var(--text-secondary);
  font-size: 1.15rem;
  margin-bottom: 1.5rem;
}

/* Footer */
.footer {
  background-color: #05080E;
  padding: 4rem 0 2rem;
  border-top: 1px solid var(--glass-border);
}

.footer-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.footer-brand h2 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.footer-brand p {
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.footer-contact {
  margin-bottom: 3rem;
}

.footer-info {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 2rem;
  line-height: 1.8;
}

.footer-copyright {
  color: var(--text-secondary);
  font-size: 0.85rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  width: 100%;
}

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

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

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    /* Basic implementation, should be replaced with hamburger menu later */
  }

  .hero-graphic {
    opacity: 0.4;
    width: 100%;
  }

  .portfolio-grid {
    grid-template-columns: 1fr;
  }
}

/* Toast Notification */
.toast {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background: var(--bg-secondary);
  border: 1px solid var(--accent-color);
  border-radius: 8px;
  padding: 1rem 1.5rem;
  box-shadow: 0 10px 25px rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  gap: 1rem;
  z-index: 9999;
  transform: translateX(150%);
  transition: transform 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.toast.show {
  transform: translateX(0);
}

.toast-content {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.toast-icon {
  width: 24px;
  height: 24px;
  color: var(--accent-color);
}

.toast-text p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 0.25rem;
}

.toast-close {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
  transition: var(--transition);
}

.toast-close:hover {
  color: var(--text-primary);
}