@import url("https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;700;900&display=swap");

:root {
  --primaryTextColor: #232e35; /* For titles or headings */
  --secondaryTextColor: #656d72; /* For regular text like paragraphs */
  --borderColor: #f1f1f1;
  --lineColor: #d9d9d9; /* For lines in pre-title */
  --primaryBackgroundColor: #fff;
  --secondaryBackgroundColor: #fbfbfb;
  --thirdBackgroundColor: #f5f3fe;
  --primaryIconColor: #7e74f1;
  --primaryIconColorHover: #5d51e8;
  --sectionPadding: 6rem 0;
  --itemBorderRadius: 0.7rem;
  --transition: all 0.3s ease-in-out;
}

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

body {
  font-family: "Roboto", sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
  user-select: none;
  -webkit-user-select: none; /* Safari */
  -moz-user-select: none; /* Firefox */
  -ms-user-select: none;
}

h1, h2, h3, h4, h5, h6, strong {
  color: var(--primaryTextColor);
  margin-bottom: 0.5rem;
}

p {
  font-size: clamp(0.9rem, 1vw, 1rem);
  line-height: 1.7;
  margin-bottom: 1rem;
}

p, span, label, input, textarea, li {
  color: var(--secondaryTextColor);
}

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

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

/* Container */
.main-container {
  width: min(1200px, 90%);
  margin: 0 auto;
  padding: 0 1rem;
}

/* Buttons */
.btn {
  padding: 0.8rem 1.5rem;
  background: white;
  border: 1.5px solid var(--borderColor);
  border-radius: 4px;
  cursor: pointer;
  font-weight: 500;
  transition: var(--transition);
  display: inline-block;
}

.btn:hover {
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

/* Titles */
.section-title {
  margin: 1rem 0 3rem;
  font-size: clamp(1.5rem, 4vw, 2rem);
  position: relative;
}

.pre-title {
  text-transform: uppercase;
  letter-spacing: 0.5rem;
  color: var(--secondaryTextColor);
  position: relative;
  padding-left: 40px;
  width: fit-content;
  font-weight: 400;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}

.pre-title::before {
  content: "";
  width: 30px;
  height: 1px;
  background: var(--lineColor);
  position: absolute;
  display: block;
  left: 0;
  top: 50%;
}

/* Layouts */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

/* --- Logo and Navigation Menu --- */
.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 0;
  position: sticky;
  top: 0;
  background: var(--primaryBackgroundColor);
  z-index: 100;
}

nav ul {
  list-style: none;
  display: flex;
  gap: clamp(1.5rem, 3vw, 3rem);
}

.menu {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-weight: 500;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  font-weight: 700;
  font-size: clamp(1.5rem, 3vw, 2rem);
  transition: transform 0.3s ease, color 0.3s ease, text-shadow 0.3s ease;

}

.logo:hover {
  transform: scale(1.1);
}

.logo a {
  color: var(--primaryTextColor);
}

.logo img {
  width: 35px;
  height: 36px;
  margin-right: 10px;
}

/* Navigation Menu */
nav ul li {
  display: flex;
  align-items: center;
}

nav ul li a {
  color: var(--primaryTextColor);
  position: relative;
  padding: 0.3rem 0;
}

nav ul li a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primaryIconColor);
  transition: var(--transition);
}

nav ul li a:hover::after {
  width: 100%;
}

/* Mobile Menu */
.burger {
  display: none;
  cursor: pointer;
  z-index: 99;
  position: fixed;
  top: 33px;
  right: 35px;
}

.burger div {
  width: 25px;
  height: 2px;
  background-color: var(--primaryTextColor);
  margin: 7px;
  transition: var(--transition);
}

/* Hero Section */
#hero {
  min-height: 80vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  padding: 2rem 0;
}

.hero-name {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  margin: 0.5rem 0 1rem;
  line-height: 1.2;
}

.hero-name span {
  color: var(--primaryIconColor) !important;
  position: relative;
}

.hero-name span::after {
  content: '';
  position: absolute;
  bottom: 5px;
  left: 0;
  width: 100%;
  height: 6px;
  background-color: rgba(126, 116, 241, 0.2);
  z-index: -1;
}

.hero-right img {
  width: 90%;
  animation: float 5s ease-in-out infinite;
}

@keyframes float {
  0% { transform: translateY(0); }
  50% { transform: translateY(-15px); }
  100% { transform: translateY(0); }
}

.hero-right {
  display: flex;
  justify-content: center;
}

/* Services Section */
#services {
  background-color: var(--secondaryBackgroundColor);
  padding: var(--sectionPadding);
}

.services .pre-title {
  margin: 0 auto;
}

.services-title {
  text-align: center;
}

.service {
  padding: 2.5rem 2rem;
  text-align: center;
  background: var(--primaryBackgroundColor);
  border-radius: var(--itemBorderRadius);
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.03);
  transition: var(--transition);
  height: 100%;
}

.service:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.service h4 {
  margin: 1.5rem 0;
  font-weight: 500;
  font-size: 1.1rem;
}

.service-icon {
  background: var(--thirdBackgroundColor);
  width: fit-content;
  margin: 0 auto;
  padding: 1rem 1.3rem;
  border-radius: 0.5rem;
  transition: var(--transition);
}

.service:hover .service-icon {
  transform: scale(1.1);
}

.service-icon svg {
  fill: var(--primaryIconColor);
}

/* Portfolios */
#portfolios {
  padding: var(--sectionPadding);
}

.portfolio {
  border-radius: var(--itemBorderRadius);
  overflow: hidden;
  border: 1px solid var(--borderColor);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.03);
  transition: var(--transition);
  height: 100%;
}

.portfolio:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
}

.portfolio-cover {
  height: 250px;
  overflow: hidden;
}

.portfolio img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.portfolio:hover img {
  transform: scale(1.05);
}

.portfolio-info {
  padding: 2rem 1.5rem;
}

.portfolio-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.portfolio h4 {
  font-weight: 500;
  font-size: 1.05rem;
}

.portfolio-title a svg {
  transition: var(--transition);
}

.portfolio-title a svg:hover {
  fill: var(--primaryIconColor);
  transform: scale(1.1);
}

.portfolio-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1rem 0;
}

.portfolio-tags div {
  font-size: 0.85rem;
  border: 1px solid var(--borderColor);
  padding: 0.3rem 0.8rem;
  color: var(--secondaryTextColor);
  border-radius: 4px;
  transition: var(--transition);
}

.portfolio-tags div:hover {
  background-color: var(--primaryIconColor);
  color: white;
  border-color: var(--primaryIconColor);
}

.projek:hover {
  opacity: 0.85;
  cursor: pointer;
}

/* Skills and Education */
#skills {
  padding: var(--sectionPadding);
  background: var(--secondaryBackgroundColor);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 3rem;
}

.education {
  display: flex;
  gap: 1rem;
}

.education .line {
  padding: 0 0.7rem;
}

.education .line div {
  width: 2px;
  height: 100%;
  background: var(--borderColor);
  position: relative;
}

.education-info p {
  margin: 0.6rem 0 1.4rem;
}

.education-years {
  margin-bottom: 3rem;
  font-weight: 500;
}

/* The dot on the line */
.education .line div:before {
  content: "";
  width: 15px;
  height: 15px;
  background: var(--primaryIconColor);
  border-radius: 50%;
  position: absolute;
  left: -6px;
  transition: var(--transition);
}

.education:hover .line div:before {
  transform: scale(1.2);
}

/* Right side of Skills */
.skills-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.skills-right ul {
  line-height: 2rem;
  padding: 0 1rem;
}

.skills-right ul li {
  position: relative;
  padding-left: 1.2rem;
  list-style-type: none;
}

.skills-right ul li::before {
  content: "•";
  color: var(--primaryIconColor);
  position: absolute;
  left: 0;
  font-weight: bold;
}

/* Contact Section */
#contact {
  padding: var(--sectionPadding);
}

.contact {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 3rem;
}

.contact-form div {
  margin-bottom: 1.4rem;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.75rem 1.3rem;
  font-family: "Roboto", sans-serif;
  background: var(--secondaryBackgroundColor);
  border: 1px solid var(--borderColor);
  border-radius: 4px;
  resize: none;
  transition: var(--transition);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: #9d9fa1;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border: 1px solid var(--primaryIconColor);
  box-shadow: 0 0 0 3px rgba(126, 116, 241, 0.2);
}

.btn-submit {
  width: 100%;
  padding: 0.75rem 1.3rem;
  background-color: var(--primaryIconColor);
  color: #fff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 500;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  text-transform: none;
  letter-spacing: 0.5px;
  font-size: 0.9rem;
}

.btn-submit:hover {
  background-color: var(--primaryIconColorHover);
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(126, 116, 241, 0.3);
}

.btn-submit:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(126, 116, 241, 0.2);
}

.btn-submit::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  transition: all 0.6s;
}

.btn-submit:hover::before {
  left: 100%;
}

/* Contact Section - Right Side */
.contact-item {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
  transition: var(--transition);
}

.contact-item:hover {
  transform: translateX(5px);
}

.contact-item-detail {
  cursor: pointer;
}

.contact-item-icon {
  background: var(--thirdBackgroundColor);
  width: 53px;
  height: 53px;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.contact-item:hover .contact-item-icon {
  background-color: var(--primaryIconColor);
}

.contact-item:hover .contact-item-icon svg {
  fill: white;
}

.contact-item-icon svg {
  fill: var(--primaryIconColor);
  transition: var(--transition);
}

.contact-item-detail h4 {
  margin-bottom: 0.6rem;
}

/* Footer Section */
footer {
  padding: 4rem 0;
  background: var(--secondaryBackgroundColor);
  text-align: center;
}

.footer-icons {
  margin-bottom: 1rem;
  display: flex;
  justify-content: center;
  gap: 1rem;
}

.footer-icons a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: #f1f1f1;
  transition: var(--transition);
}

.footer-icons svg {
  fill: #3e3f40;
  transition: var(--transition);
}

.footer-icons a:hover {
  background-color: var(--primaryIconColor);
  transform: translateY(-3px);
}

.footer-icons a:hover svg {
  fill: white;
}

.scroll-to-top {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 45px;
  height: 45px;
  background-color: var(--primaryIconColor);
  color: white;
  border: none;
  border-radius: 50%;
  font-size: 24px;
  display: none; /* Hide button initially */
  justify-content: center;
  align-items: center;
  cursor: pointer;
  transition: var(--transition);
  z-index: 99;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
}

.scroll-to-top:hover {
  background-color: var(--primaryIconColorHover);
  transform: scale(1.1);
}

/* Media Queries for Responsive Design */

@media screen and (max-width: 992px) {
  :root {
    --sectionPadding: 4rem 0;
  }
  
  #hero {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2rem;
  }
  
  .hero-left {
    order: 2;
  }
  
  .hero-right {
    order: 1;
  }
  
  .pre-title {
    margin: 0 auto;
  }
  
  .education-years {
    margin-bottom: 2rem;
  }
}

@media screen and (max-width: 768px) {
  .burger {
    display: block;
    cursor: pointer;
  }
  
  nav {
    position: fixed;
    top: 0;
    right: 0;
    width: 70%;
    height: 100vh;
    background: white;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transform: translateX(100%);
    transition: transform 0.5s ease-in-out;
    box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
  }
  
  nav.active {
    transform: translateX(0);
  }
  
  nav ul {
    flex-direction: column;
    align-items: center;
  }
  
  .portfolio-tags {
    flex-wrap: wrap;
  }
  
  .skills-grid {
    gap: 2rem;
  }
  
  .grid-3 {
    gap: 1.5rem;
  }
}

@media screen and (max-width: 576px) {
  :root {
    --sectionPadding: 3rem 0;
  }
  
  .section-title {
    margin: 1rem 0 2rem;
  }
  
  .skills-grid, .contact {
    grid-template-columns: 1fr;
  }
  
  .skills-list {
    grid-template-columns: 1fr 1fr;
  }
  
  .portfolio-title {
    flex-direction: column;
    align-items: flex-start;
  }
}