/* root theme */
:root {
  --clr-bg: #ffffff;
  --clr-bg-alt: #f5f7ff;
  --clr-text: #222;
  --clr-accent: #6c63ff;
  --clr-accent-dark: #554bf8;
  --clr-muted: #6b7280;
  --radius: 8px;
  --transition: 0.3s ease;
  --max-width: 1100px;
  --font-main: "Inter", system-ui, sans-serif;
}

[data-theme="dark"] {
  --clr-bg: #0f172a;
  --clr-bg-alt: #1e293b;
  --clr-text: #e2e8f0;
  --clr-muted: #94a3b8;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  zoom: 120%;
  font-family: var(--font-main);
  background: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img {
  display: block;
  max-width: 100%;
  height: auto;
}
a {
  text-decoration: none;
  color: inherit;
}
ul {
  list-style: none;
}
button,
input,
textarea {
  font: inherit;
  border: none;
  background: none;
  outline: none;
}
textarea {
  resize: vertical;
}

/* utility */
.container {
  width: 90%;
  max-width: var(--max-width);
  margin-inline: auto;
}
.section {
  padding: 80px 0;
}
.section__title {
  font-size: 2.25rem;
  margin-bottom: 3rem;
  text-align: center;
  position: relative;
}
.section__title::after {
  content: "";
  height: 4px;
  width: 60px;
  background: var(--clr-accent);
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: -10px;
}
.btn {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  cursor: pointer;
  transition: var(--transition);
  font-weight: 600;
}
.btn--primary {
  background: var(--clr-accent);
  color: #fff;
}
.btn--primary:hover {
  background: var(--clr-accent-dark);
}
.btn--outline {
  border: 2px solid var(--clr-accent);
  color: var(--clr-accent);
}
.btn--outline:hover {
  background: var(--clr-accent);
  color: #fff;
}
.btn--small {
  padding: 0.5rem 1.25rem;
  font-size: 0.875rem;
}
.hidden {
  display: none;
}
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.show {
  opacity: 1;
  transform: translateY(0);
}

/* header section */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: var(--clr-bg);
  z-index: 1000;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}
.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}
.logo img {
  height: 40px;
}
.nav__list {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.nav__link {
  font-weight: 500;
  position: relative;
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  height: 2px;
  width: 0;
  background: var(--clr-accent);
  transition: width var(--transition);
}
.nav__link:hover::after {
  width: 100%;
}
.theme-btn {
  font-size: 1.25rem;
  color: var(--clr-accent);
  cursor: pointer;
}
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
}
.hamburger,
.hamburger::before,
.hamburger::after {
  width: 25px;
  height: 3px;
  background: var(--clr-text);
  transition: var(--transition);
}
.hamburger::before,
.hamburger::after {
  content: "";
}
.hamburger::before {
  transform: translateY(-6px);
}
.hamburger::after {
  transform: translateY(3px);
}
.open .hamburger {
  transform: rotate(45deg);
}
.open .hamburger::before {
  transform: rotate(90deg) translate(6px);
}
.open .hamburger::after {
  opacity: 0;
}

/* hero section */
.hero {
  padding-top: 100px;
  min-height: 75vh;
  display: grid;
  place-content: center;
}
.hero__grid {
  display: grid;
  gap: 2rem;
  align-items: center;
}
.hero__title {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  line-height: 1.2;
}
.accent {
  color: var(--clr-accent);
}
.hero__subtitle {
  margin: 1rem 0 2rem;
  color: var(--clr-muted);
  font-size: 1.125rem;
}
.hero__img {
  border-radius: var(--radius);
  max-height: 400px;
  object-fit: cover;
  margin-left: 40px;
}

/* about section */
.about__grid {
  display: grid;
  gap: 3rem;
  align-items: center;
}
.about__photo img {
  border-radius: var(--radius);
}
.about__skills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.5rem 0;
}
.about__skills li {
  background: var(--clr-bg-alt);
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 500;
}
.about__skills li:hover{
  background-color: #6963ec;
}

/* project section */
.projects__grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.project-card {
  background: var(--clr-bg-alt);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition);
}
.project-card:hover {
  transform: translateY(-6px);
}
.project-card__img {
  height: 180px;
  object-fit: cover;
}
.project-card__body {
  padding: 1.25rem 1.5rem 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.project-card__title {
  font-size: 1.125rem;
  margin-bottom: 0.25rem;
}
.project-card__desc {
  flex: 1;
  margin: 0.75rem 0 1.25rem;
  color: var(--clr-muted);
  font-size: 0.9rem;
}

/* skill section */
.skills__grid {
  display: grid;
  gap: 1.5rem;
}
.skill__label {
  margin-bottom: 0.5rem;
  font-weight: 500;
}
.skill__bar {
  height: 10px;
  background: var(--clr-bg-alt);
  border-radius: 10px;
  overflow: hidden;
}
.skill__bar span {
  display: block;
  height: 100%;
  background: var(--clr-accent);
  width: 0;
  transition: width 1s ease;
  border-radius: 10px;
}
.skill__bar.show span {
  width: var(--width);
}

/* contact section */
.contact__grid {
  display: grid;
  gap: 3rem;
}
.contact__list li + li {
  margin-top: 0.75rem;
}
.contact__list i {
  width: 20px;
  color: var(--clr-accent);
  margin-right: 0.5rem;
}
.social {
  margin-top: 1.5rem;
  display: flex;
  gap: 1rem;
  font-size: 1.3rem;
}
.social a {
  color: var(--clr-muted);
  transition: color var(--transition);
}
.social a:hover {
  color: var(--clr-accent);
}
.contact__form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.contact__form input,
.contact__form textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid #ccc;
  border-radius: var(--radius);
  background: var(--clr-bg);
  color: var(--clr-text);
}
.contact__form button {
  align-self: center;
}
.msg-sent {
  color: rgb(116, 226, 116);
  font-size: 0.9rem;
}

/* footer section */
.footer {
  padding: 2rem 0;
  text-align: center;
  font-size: 0.875rem;
  color: var(--clr-muted);
}

/* responsiveness */
@media (min-width: 768px) {
  .hero__grid {
    grid-template-columns: 1.2fr 1fr;
  }
  .about__grid {
    grid-template-columns: 1fr 2fr;
  }
  .contact__grid {
    grid-template-columns: 1fr 1.5fr;
  }
}
@media (max-width: 768px) {
  .nav {
    position: fixed;
    inset: 0 0 0 40%;
    background: var(--clr-bg);
    transform: translateX(100%);
    transition: transform var(--transition);
    padding: min(30vh, 8rem) 2rem;
  }
  .nav__list {
    flex-direction: column;
    align-items: start;
    gap: 1.5rem;
  }
  .nav-toggle {
    display: flex;
  }
  .open .nav {
    transform: translateX(0);
  }
}