:root {
  --background-dark: #0e101a;
  --background-light: #ffffff;
  --primary-text: #979797;
  --secondary-text: #a0aabe;
  --accent: #d0d0d0;
  --accent-dark: #111021;
  --border: #2e3448;
  --shadow: rgba(79, 93, 138, 0.2);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  max-width: 100vw;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 10vh;
  font-size: clamp(20px, 1.5vw, 18px);
}

body {
  font-family: 'Segoe UI', Arial, sans-serif;
  background: var(--background-dark);
  color: var(--primary-text);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
}

header {
  background: var(--background-dark);
  color: var(--primary-text);
  padding: 3vh 0;
  box-shadow: 0 2px 16px var(--shadow);
}

nav {
  transition: top 0.5s;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 2vh 3vw;
  gap: 20vh;
  background: var(--accent-dark);
  backdrop-filter: blur(10px);
  border-radius: 2vh;
  margin: 1.2vh auto 0 auto;
  box-shadow: 0 4px 24px var(--shadow);
  position: fixed;
  top: 0;
  width: 95w;
  z-index: 1000;
  border-bottom: 0.3vh solid var(--border);
}

.logo {
  font-weight: bold;
  margin-right: 5vw;
  font-size: clamp(1.5rem, 2.5vw, 2.6vh);
  letter-spacing: 0.2vh;
  color: var(--background-light);
}

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

nav ul li {
  margin-left: 1.5vw;
}

nav a {
  color: var(--secondary-text);
  text-decoration: none;
  font-weight: 600;
  font-size: clamp(1rem, 1.7vh, 3.2rem);
  letter-spacing: 0.1vh;
  padding:  1vh;
  border-radius: 6px;
  transition: background 0.22s, color 0.22s;
  position: relative;
}

nav a:hover,
nav a:focus {
  color: var(--background-light);
  outline: none;
}

nav a::after {
  content: '';
  display: block;
  width: 0;
  height: 0.25vh;
  background: var(--accent);
  transition: width 0.3s;
  position: absolute;
  left: 0;
  border-radius: 2vh;
}

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

.menu-toggle {
  display: none;
  font-size: 4vh;
  cursor: pointer;
  color: var(--background-light);
}

.hero {
  text-align: center;
  margin: 5vh 0 0 0;
  padding-top: 10vh;
}

.hero h1 {
  font-size: clamp(2rem, 2vw, 4rem);
  margin-bottom: 1vh;
  font-weight: bold;
  color: var(--background-light);
}

.hero span {
  color: var(--secondary-text);
}

.hero p {
  color: var(--background-light);
  font-size: clamp(0.2rem, 1vw, 4rem);
  margin-top: 1vh;
}

main {
  max-width: 1000vw;
  margin: 4vh auto;
  padding: 3%;
}

section {
  margin-bottom: 2%;
}

h2 {
  color: var(--accent);
  margin-bottom: 2vh;
  font-size: clamp(5rem, 0.1vw);
  border-left: 0.5vw solid var(--border);
  padding-left: 1vw;
  font-weight: 700;
}

.education-list,
.skills-list,
.contact-info {
  list-style: none;
  padding-left: 0;
}

.education-list li {
  background: var(--accent-dark);
  margin-bottom: 2vh;
  padding: 1vh 3vw;
  border-radius: 1.5vh;
  box-shadow: 0 2px 8px var(--shadow);
  color: var(--accent);
  transition: transform 0.18s, box-shadow 0.18s, border-color 0.18s;
  border: #ffffff28 2px solid;
}

.education-list li:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 2px var(--accent), 0 2px 8px var(--shadow);
  border-color: var(--accent);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(clamp(250px, 100%, 60vh), 1fr));
  gap: 2rem;
  width: 100%;
  padding: 0 2vw;
}

.project-card {
  background: var(--accent-dark);
  padding: 2vh 1.5vw;
  border-radius: 2vh;
  transition: transform 0.18s, box-shadow 0.18s;
  border: #ffffff28 2px solid;
  max-height: 80vh;
  /* overflow: hidden; */
  position: relative;
  color: var(--background-light);
  flex-direction: column;
  height: auto;
  overflow: hidden;
  max-width: 100%;
}

.project-card:hover {
  transform: translateY(-6px) scale(1.03);
  box-shadow: 0 0 5px var(--accent), 0 2px 3px var(--shadow);
  border-color: var(--accent);
}

.project-card h3 {
  margin-bottom: 1vh;
  font-size: clamp(1rem, 2vw, 1.5rem);
  font-weight: 600;
}

.project-card p,
.project-card ul {
  color: var(--accent);
  font-size: clamp(0.9rem, 1.2vw, 1rem);
}

.project-card ul {
  margin: 1vh 0 1vh 1vw;
  padding-left: 1vw;
}

.project-card a {
  display: inline-block;
  margin-top: 1vh;
  color: var(--background-dark);
  background: var(--accent);
  padding: 1vh 2vw;
  border-radius: 1vh;
  text-decoration: none;
  font-size: clamp(0.9rem, 1.2vw, 1rem);
  font-weight: 600;
  transition: background 0.2s, color 0.2s;
  box-shadow: 0 1px 4px var(--shadow);
}

.project-card a:hover {
  border: 1px solid var(--accent);
  background: var(--shadow);
  color: var(--background-light);
}

.skills-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1vh;
  font-size: clamp(0.9rem, 1.1vw, 1rem);
}

.skills-list li {
  background: var(--accent-dark);
  padding: 1vh 2vw;
  box-shadow: 0 2px 5px var(--shadow);
  border-radius: 2vh;
  transition: transform 0.18s, box-shadow 0.18s;
  border: #ffffff28 2px solid;
  color: var(--background-light);
}

.skills-list li:hover {
  transform: scale(1.02);
  box-shadow: 0 1px 1px var(--background-light), 0 2px 1px var(--shadow);
  border-color: var(--accent);
}

.contact-info li {
  margin-bottom: 1vh;
}

.contact-info a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}

.contact-info a:hover {
  color: #d56c6ca0;
  text-decoration: underline;
}

footer {
  text-align: center;
  padding: 3vh 0;
  background: var(--accent);
  color: var(--background-light);
  font-size: clamp(0.9rem, 1vw, 1rem);
  letter-spacing: 1px;
  margin-top: 4vh;
  border-top: 1px solid var(--border);
}

/* Responsive */
@media (max-width: 900px) {
  main {
    padding: 0 2vw;
  }
}

@media (max-width: 600px) {
  .projects-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 700px) {
  nav ul {
    display: none;
    flex-direction: column;
    background: var(--accent);
    position: absolute;
    top: 60px;
    right: 2rem;
    width: 180px;
    border-radius: 12px;
    box-shadow: 0 4px 16px var(--shadow);
    z-index: 99;
    padding: 1rem 0;
  }
  nav ul.show {
    display: flex;
  }
  nav ul li {
    margin: 0.7rem 0;
    text-align: right;
    padding-right: 1.5rem;
  }
  .menu-toggle {
    display: block;
    font-size: 2.2rem;
    margin-left: 1rem;
    cursor: pointer;
    color: var(--background-light);
    transition: color 0.2s;
  }
  .menu-toggle:focus {
    outline: 2px solid var(--accent);
  }
}

nav a.active {
  color: var(--accent);
  font-weight: bold;
}

@media (min-width: 600px) {
  .skills-list {
    grid-template-columns: 1fr 1fr;
  }
}