:root {
  --primaryTextColor: #232e35; /* Untuk title atau judul */
  --secondaryTextColor: #656d72; /* Untuk text biasa seperti paragraph contohnya */

  --borderColor: #f1f1f1;
  --lineColor: #d9d9d9; /* untuk line di pre-title */

  --primaryBackgroundColor: #fff;
  --secondaryBackgroundColor: #fbfbfb;
  --thirdBackgroundColor: #f5f3fe;

  --primaryIconColor: #7e74f1;
  --primaryIconColorHover: #5d51e8;

  --sectionPadding: 6rem 0;

  --itemBorderRadius: 0.7rem;
}

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

body {
  font-family: "Roboto", sans-serif;
}

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

p {
  font-size: 1rem; /* 16 px */
  line-height: 1.9rem; /*30.4 px */
}

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

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

/* End Preparation */

/* Hero Animation */
@keyframes slideUpHero {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.main-container {
  width: 1200px;
  margin: 0 auto;
}

@media screen and (max-width: 1200px) {
  .main-container {
    width: 90%;
  }
}

/* Buttons */
.btn {
  padding: 1rem 1.5rem;
  background: white;
  border: 1.5px solid var(--borderColor);
  cursor: pointer;
  transition: 0.2s ease-in-out;
}

.btn:hover {
  box-shadow: rgba(0, 0, 0, 0.04) 0px 3px 5px;
}

/* Titles */
.section-title {
  margin: 1rem 0 4rem;
  font-size: 2rem;
}

.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;
}

.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: 1fr 1fr 1fr; use this first, use code below when its time for explaining responsive design part */
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
}

/* --- Logo and Navigation Menu --- */
.nav {
  display: flex;
  justify-content: space-between;
  padding: 2rem 0;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 3rem;
}

nav li a:hover {
  color: var(--primaryIconColor);
}

/* Logo */
.nav .logo img {
  width: 50px;
}

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

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

nav ul li a:hover {
  fill: var(--primaryIconColor);
}

/* Burger - Save for later on video */
.burger div {
  width: 25px;
  height: 2px;
  background-color: #000;
  margin: 7px;
  transition: all 0.3s;
  z-index: 99;
}

.burger {
  display: none;
  z-index: 99;
  position: fixed;
  top: 33px;
  right: 35px;
}

/* Hero Section */
#hero {
  height: 780px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  /* We're not going to use automatic template columns, because we need to know when the columns is go below. So we can exchange the order of the element */
  align-items: center;
}

.hero-name {
  font-size: 3rem;
  font-weight: 700;
  margin: 0.5rem 0 1rem;
}

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

.hero-right img {
  width: 90%;
  max-width: 450px;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 50%;
  display: block;
}

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

.hero-left {
  animation: slideUpHero 0.8s ease-out;
}

.hero-right {
  animation: slideUpHero 0.8s ease-out 0.2s both;
}

/* Services Section */
#services {
  background-color: var(--secondaryBackgroundColor);
  padding: 12rem 0;
}

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

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

.service {
  padding: 3rem 2rem;
  text-align: center;
  background: var(--primaryBackgroundColor);
  border-radius: var(--itemBorderRadius);
}

.service h4 {
  margin: 1.5rem 0;
  font-weight: 500;
  font-size: 1.05rem;
}

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

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

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

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

.service:hover {
  transform: scale(1.04) translateY(-8px);
  box-shadow:
    0 12px 32px rgba(15, 23, 42, 0.18),
    0 2px 8px rgba(0, 0, 0, 0.08);
  z-index: 10;
  transition:
    transform 0.25s cubic-bezier(0.4, 2, 0.3, 1),
    box-shadow 0.25s;
}

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

.portfolio {
  border-radius: var(--itemBorderRadius);
  overflow: hidden; /* supaya gambar yang diatas itu dia ngikut border radiusnya, karena yang dikasih border radius disini adalah div portfolio ini */
  border: 1px solid var(--borderColor);
}

.portfolio-cover {
  height: 250px;
}

.portfolio img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.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:hover {
  fill: var(--primaryIconColor);
}

.portfolio-title a svg {
  transition: 0.2s ease-in-out;
}

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

.portfolio-tags div {
  font-size: 0.9rem;
  border: 1px solid var(--borderColor);
  padding: 0.4rem 1rem;
  color: var(--secondaryTextColor);
}

.portfolio-tags div {
  font-size: 0.9rem;
  border: 1px solid var(--borderColor);
  padding: 0.4rem 1rem;
  color: var(--secondaryTextColor);
}

/* Certificates */
#certificates {
  padding: 10rem 0;
  background: var(--secondaryBackgroundColor);
}

.certificates {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  box-sizing: border-box;
}

.certificate-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 3rem;
  align-items: stretch;
}

.certificate-card {
  width: 100%;
  background: var(--primaryBackgroundColor);
  border: 1px solid var(--borderColor);
  border-radius: 12px;
  overflow: hidden;
  box-sizing: border-box;
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
}

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

.certificate-preview {
  width: 100%;
  height: 220px;
  overflow: hidden;
  background: #f5f5f5;
}

.certificate-preview iframe {
  width: 100%;
  height: 100%;
  border: none;
  display: block;
}

.certificate-content {
  padding: 1.5rem;
}

.certificate-content h4 {
  margin: 0 0 0.6rem;
}

.certificate-content p {
  margin: 0 0 0.5rem;
}

.certificate-content span {
  display: block;
  margin-bottom: 1.3rem;
  font-size: 0.9rem;
}

.certificate-button {
  display: inline-block;
  padding: 0.7rem 1.2rem;
  border-radius: 6px;
  background: var(--primaryIconColor);
  color: #fff;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
}

@media screen and (max-width: 1000px) {
  .certificate-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media screen and (max-width: 650px) {
  .certificates {
    padding: 0 1rem;
  }

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

.hidden-certificate {
  display: none;
}

.hidden-certificate.show {
  display: block;
}

.certificate-toggle {
  display: flex;
  justify-content: center;
  margin-top: 3rem;
}

.certificate-toggle-button {
  width: 100%;
  padding: 0.75rem 1.3rem;
  font-family: "Roboto", sans-serif;
  background: var(--secondaryBackgroundColor);
  border: 1px solid var(--borderColor);
  border-radius: 3px;
  resize: none;
  border: none;
  padding: 0.8rem 1.6rem;
  border-radius: 6px;
  background: var(--primaryIconColor);
  color: #fff;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: 0.3s ease;
}

.certificate-toggle-button:hover {
  background-color: var(--primaryIconColorHover);
  transform: translateY(-2px);
}

/* Contact Section */
#contact {
  padding: 10rem 0;
}

.contact {
  display: grid;
  /* grid-template-columns: 1fr 1fr; */
  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: 3px;
  resize: none;
}

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

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border: 1px solid #7d7d7d;
}

.btn-submit {
  width: 100%;
  padding: 0.75rem 1.3rem;
  background-color: var(--primaryIconColor);
  color: #fff;
  border: none;
  border-radius: 3px;
  cursor: pointer;
  transition: 0.2s ease-in-out;
}

.btn-submit:hover {
  background-color: var(--primaryIconColorHover);
}

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

.contact-item-icon {
  background: var(--thirdBackgroundColor);
  /* padding: 0.8rem 1rem; */
  width: 53px;
  height: 53px;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.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;
}

.footer-icons a {
  margin: 0 0.5rem;
}

.footer-icons svg {
  fill: #3e3f40;
}

.footer-icons a:hover svg {
  fill: #000;
}