:root {
  --primary: #6c5ce7;
  --primary-dark: #5649c0;
  --secondary: #00cec9;
  --dark: #000000;
  --darker: #050505;
  --light: #e0e0e0;
  --lighter: #ffffff;
  --muted: #b0b0b0;
  --gradient: linear-gradient(135deg, var(--primary), var(--secondary));
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  --card-bg: #0f0f0f;
  --section-bg: #080808;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--light);
  background-color: var(--dark);
  overflow-x: hidden;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

h1, h2, h3 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--lighter);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 0.5rem;
}

h2 {
  font-size: 2.5rem;
  margin-bottom: 2rem;
  position: relative;
  display: inline-block;
  padding-bottom: 15px;
}

h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--gradient);
  border-radius: 2px;
  transform-origin: left;
  animation: underlineGrow 0.8s cubic-bezier(0.65, 0, 0.35, 1) forwards;
}

h3 {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
}

p {
  margin-bottom: 1.5rem;
  color: var(--muted);
}

header {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  
  background: 
    linear-gradient(rgba(10, 10, 10, 0.9), rgba(10, 10, 10, 0.7)),
    url('photo.avif') no-repeat center center;
  background-size: cover;
  background-attachment: fixed;
  
  background-color: #000000;
}

@media (max-width: 768px) {
  header {
    background-attachment: scroll;
    background-position: top center;
  }
}

header .container {
  position: relative;
  z-index: 2;
}

header .fade-up {
  animation: 
    fadeUp 0.8s forwards,
    headerColorShift 12s infinite linear;
}

header .fade-up.delay-1 {
  animation-delay: 0.3s, 0.3s;
}

header .fade-up.delay-2 {
  animation-delay: 0.6s, 0.6s;
}

header p {
  font-size: 1.25rem;
  color: var(--light);
  max-width: 700px;
  margin: 0 auto 2rem;
}

section {
  padding: 6rem 2rem;
  background-color: var(--dark);
}

section:nth-child(even) {
  background-color: var(--section-bg);
}

#about {
  text-align: center;
}

#about p {
  max-width: 700px;
  margin: 0 auto;
  font-size: 1.1rem;
}

#projects, #links {
  padding-left: 2rem;
  padding-right: 2rem;
}

.projects, .links {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 2rem;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}

.card {
  background: var(--card-bg);
  border-radius: 12px;
  padding: 2rem;
  box-shadow: var(--shadow);
  transition: var(--transition);
  cursor: pointer;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
  background: rgba(29, 37, 48, 0.8);
}

.card h3 {
  color: var(--secondary);
}

.fade-up {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.8s forwards, colorShift 3s infinite alternate;
}

.fade-left {
  opacity: 0;
  transform: translateX(-20px);
  animation: fadeLeft 0.8s forwards;
}

.fade-right {
  opacity: 0;
  transform: translateX(20px);
  animation: fadeRight 0.8s forwards;
}

.delay-1 {
  animation-delay: 0.2s;
}

.delay-2 {
  animation-delay: 0.4s;
}

@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes headerColorShift {
  0% {
    color: #6c5ce7;
    text-shadow: 0 0 12px rgba(108, 92, 231, 0.8);
  }
  16% {
    color: #0984e3;
    text-shadow: 0 0 14px rgba(9, 132, 227, 0.8);
  }
  32% {
    color: #00cec9;
    text-shadow: 0 0 16px rgba(0, 206, 201, 0.8);
  }
  48% {
    color: #00b894;
    text-shadow: 0 0 14px rgba(0, 184, 148, 0.8);
  }
  64% {
    color: #fdcb6e;
    text-shadow: 0 0 12px rgba(253, 203, 110, 0.8);
  }
  80% {
    color: #fd79a8;
    text-shadow: 0 0 14px rgba(253, 121, 168, 0.8);
  }
  100% {
    color: #6c5ce7;
    text-shadow: 0 0 12px rgba(108, 92, 231, 0.8);
  }
}

@keyframes colorShift {
  0% {
    color: var(--lighter);
  }
  50% {
    color: var(--secondary);
  }
  100% {
    color: var(--lighter);
  }
}


@keyframes fadeLeft {
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeRight {
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes underlineGrow {
  from {
    transform: scaleX(0);
  }
  to {
    transform: scaleX(1);
  }
}

footer {
  text-align: center;
  padding: 2rem 0;
  background: var(--darker);
  color: var(--light);
}

@media (max-width: 768px) {
  section {
    padding: 4rem 1.5rem;
  }
  
  h2 {
    font-size: 2rem;
  }
  
  .projects, .links {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  #projects, #links {
    padding-left: 1rem;
    padding-right: 1rem;
  }
}

.card:hover h3 {
  text-shadow: 0 0 10px rgba(0, 206, 201, 0.5);
}

::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--darker);
}

::-webkit-scrollbar-thumb {
  background: var(--primary);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-dark);
}