/* kxvi Portfolio - CSS */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

:root {
  --background: hsl(0, 0%, 5%);
  --foreground: hsl(0, 0%, 98%);
  --card: hsl(0, 0%, 8%);
  --card-foreground: hsl(0, 0%, 98%);
  --primary: hsl(0, 85%, 60%);
  --primary-foreground: hsl(0, 0%, 100%);
  --primary-glow: hsl(0, 100%, 70%);
  --secondary: hsl(0, 0%, 12%);
  --secondary-foreground: hsl(0, 0%, 98%);
  --muted: hsl(0, 0%, 15%);
  --muted-foreground: hsl(0, 0%, 60%);
  --accent: hsl(0, 75%, 55%);
  --border: hsl(0, 0%, 15%);
  --radius: 0.75rem;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background-color: var(--background);
  color: var(--foreground);
  line-height: 1.6;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Navigation */
nav {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  background-color: rgba(13, 13, 13, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

nav .nav-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 4rem;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 1rem;
}

nav .logo {
  font-size: 1.5rem;
  font-weight: bold;
  text-decoration: none;
}

nav .nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

nav .nav-links a {
  color: var(--muted-foreground);
  text-decoration: none;
  transition: color 0.3s ease;
}

nav .nav-links a:hover,
nav .nav-links a.active {
  color: var(--primary);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--foreground);
  font-size: 1.5rem;
  cursor: pointer;
}

@media (max-width: 768px) {
  nav .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--background);
    flex-direction: column;
    padding: 1rem;
    gap: 1rem;
    border-bottom: 1px solid var(--border);
  }
  
  nav .nav-links.active {
    display: flex;
  }
  
  .mobile-menu-btn {
    display: block;
  }
}

/* Text Gradient */
.text-gradient {
  background: linear-gradient(135deg, hsl(0, 85%, 60%), hsl(10, 90%, 55%));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius);
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  border: none;
}

.btn-hero {
  background: linear-gradient(135deg, hsl(0, 85%, 60%), hsl(10, 90%, 55%));
  color: var(--primary-foreground);
}

.btn-hero:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 40px hsla(0, 85%, 60%, 0.3);
}

.btn-outline {
  background: transparent;
  color: var(--foreground);
  border: 2px solid var(--border);
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* Cards */
.card {
  background: linear-gradient(135deg, hsl(0, 0%, 8%) 0%, hsl(0, 10%, 10%) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: 0 0 40px hsla(0, 85%, 60%, 0.3);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding-top: 4rem;
  background-size: cover;
  background-position: center;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(13, 13, 13, 0.9), rgba(13, 13, 13, 0.8), rgba(13, 13, 13, 0.9));
  backdrop-filter: blur(2px);
}

.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  padding: 2rem;
}

.profile-img {
  width: 12rem;
  height: 12rem;
  border-radius: 50%;
  border: 4px solid var(--primary);
  margin: 0 auto 3rem;
  display: block;
  animation: pulseGlow 2s ease-in-out infinite;
}

@media (min-width: 768px) {
  .profile-img {
    width: 18rem;
    height: 18rem;
  }
}

.hero h1 {
  font-size: 4rem;
  font-weight: bold;
  margin-bottom: 1.5rem;
}

@media (min-width: 768px) {
  .hero h1 {
    font-size: 6rem;
  }
}

@media (min-width: 1024px) {
  .hero h1 {
    font-size: 8rem;
  }
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 3rem;
  max-width: 56rem;
  margin-left: auto;
  margin-right: auto;
}

@media (min-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
  }
}

.stat-card {
  text-align: center;
  padding: 1.5rem;
}

.stat-card svg {
  width: 2rem;
  height: 2rem;
  margin: 0 auto 1rem;
  color: var(--primary);
}

.stat-value {
  font-size: 2rem;
  font-weight: bold;
  background: linear-gradient(135deg, hsl(0, 85%, 60%), hsl(10, 90%, 55%));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--muted-foreground);
}

/* Section */
.section {
  padding: 6rem 1rem;
}

.section-alt {
  background-color: rgba(26, 26, 26, 0.3);
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title {
  font-size: 2.5rem;
  font-weight: bold;
  margin-bottom: 1rem;
}

@media (min-width: 768px) {
  .section-title {
    font-size: 3rem;
  }
}

/* Grid Layouts */
.grid {
  display: grid;
  gap: 1.5rem;
}

.grid-2 {
  grid-template-columns: 1fr;
}

.grid-3 {
  grid-template-columns: 1fr;
}

.grid-4 {
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Tech Tags */
.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.tech-tag {
  font-size: 0.75rem;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  background-color: rgba(231, 60, 60, 0.1);
  color: var(--primary);
  border: 1px solid rgba(231, 60, 60, 0.2);
}

/* Footer */
footer {
  border-top: 1px solid var(--border);
  background-color: rgba(26, 26, 26, 0.3);
  padding: 3rem 1rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--muted-foreground);
}

.social-links {
  display: flex;
  gap: 1rem;
}

.social-link {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background-color: rgba(231, 60, 60, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  text-decoration: none;
  color: var(--primary);
}

.social-link:hover {
  background-color: rgba(231, 60, 60, 0.2);
  transform: translateY(-4px);
}

/* Form Styles */
.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--foreground);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background-color: var(--input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--foreground);
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

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

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

.form-error {
  color: var(--primary);
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

.alert {
  padding: 1rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
}

.alert-success {
  background-color: rgba(34, 197, 94, 0.1);
  color: rgb(34, 197, 94);
  border: 1px solid rgba(34, 197, 94, 0.3);
}

.alert-error {
  background-color: rgba(231, 60, 60, 0.1);
  color: var(--primary);
  border: 1px solid rgba(231, 60, 60, 0.3);
}

/* Skill Progress Bar */
.skill-item {
  margin-bottom: 1.5rem;
}

.skill-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.skill-name {
  font-size: 0.875rem;
  font-weight: 500;
}

.skill-level {
  font-size: 0.875rem;
  color: var(--muted-foreground);
}

.progress-bar {
  height: 0.5rem;
  background-color: var(--secondary);
  border-radius: 9999px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(135deg, hsl(0, 85%, 60%), hsl(10, 90%, 55%));
  transition: width 1s ease;
}

/* Feature List */
.feature-list {
  list-style: none;
  padding: 0;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
  color: var(--muted-foreground);
}

.feature-list li::before {
  content: '';
  display: inline-block;
  width: 0.375rem;
  height: 0.375rem;
  border-radius: 50%;
  background-color: var(--primary);
}

/* Project Filter Buttons */
.filter-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
  margin-bottom: 3rem;
}

.filter-btn {
  padding: 0.5rem 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background-color: transparent;
  color: var(--foreground);
  cursor: pointer;
  transition: all 0.3s ease;
}

.filter-btn:hover,
.filter-btn.active {
  background: linear-gradient(135deg, hsl(0, 85%, 60%), hsl(10, 90%, 55%));
  color: var(--primary-foreground);
  border-color: transparent;
}

/* Icons */
.icon {
  width: 1.25rem;
  height: 1.25rem;
  display: inline-block;
  vertical-align: middle;
}

.icon-lg {
  width: 3rem;
  height: 3rem;
}

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

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-20px);
  }
}

@keyframes pulseGlow {
  0%, 100% {
    box-shadow: 0 0 20px hsla(0, 85%, 60%, 0.3);
  }
  50% {
    box-shadow: 0 0 40px hsla(0, 85%, 60%, 0.6);
  }
}

.animate-fade-in {
  animation: fadeIn 1s ease-in-out;
}

.animate-slide-up {
  animation: slideUp 0.5s ease-out;
}

.animate-scale-in {
  animation: scaleIn 0.3s ease-out;
}

/* Utility Classes */
.text-center {
  text-align: center;
}

.text-muted {
  color: var(--muted-foreground);
}

.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-12 { margin-bottom: 3rem; }
.mb-16 { margin-bottom: 4rem; }

.mt-4 { margin-top: 1rem; }
.mt-8 { margin-top: 2rem; }
.mt-12 { margin-top: 3rem; }
.mt-16 { margin-top: 4rem; }

.pt-24 { padding-top: 6rem; }
.pb-20 { padding-bottom: 5rem; }

.gap-2 { gap: 0.5rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.gap-8 { gap: 2rem; }

.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.items-center {
  align-items: center;
}

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}

.flex-wrap {
  flex-wrap: wrap;
}

.max-w-2xl {
  max-width: 42rem;
}

.max-w-3xl {
  max-width: 48rem;
}

.max-w-4xl {
  max-width: 56rem;
}

.max-w-5xl {
  max-width: 64rem;
}

.max-w-6xl {
  max-width: 72rem;
}

.max-w-7xl {
  max-width: 80rem;
}

.mx-auto {
  margin-left: auto;
  margin-right: auto;
}

.w-full {
  width: 100%;
}