/* ==============================
   Reset dan Variabel
================================= */
:root {
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-accent: #14b8a6;
  --color-white: #ffffff;
  --color-soft: #f8fafc;
  --color-gray: #64748b;
  --color-gray-light: #e2e8f0;
  --color-text: #0f172a;
  --shadow-soft: 0 18px 45px rgba(15, 23, 42, 0.1);
  --shadow-hover: 0 24px 60px rgba(37, 99, 235, 0.16);
  --radius-card: 8px;
  --transition: 0.28s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--color-white);
  color: var(--color-text);
  font-family: "Poppins", Arial, sans-serif;
  line-height: 1.7;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

button,
input,
textarea {
  font: inherit;
}

/* ==============================
   Komponen Umum
================================= */
.container {
  margin: 0 auto;
  max-width: 1120px;
  padding: 0 20px;
}

.section {
  padding: 96px 0;
  scroll-margin-top: 82px;
}

.section--light {
  background: var(--color-soft);
}

.section-heading {
  margin: 0 auto 44px;
  max-width: 680px;
  text-align: center;
}

.section-heading__label {
  color: var(--color-primary);
  display: inline-block;
  font-size: 0.84rem;
  font-weight: 700;
  margin-bottom: 8px;
  text-transform: uppercase;
}

.section-heading__title {
  color: var(--color-text);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  line-height: 1.25;
  margin-bottom: 12px;
}

.section-heading__text {
  color: var(--color-gray);
}

.card {
  background: var(--color-white);
  border: 1px solid rgba(226, 232, 240, 0.9);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-soft);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.card:hover {
  border-color: rgba(37, 99, 235, 0.22);
  box-shadow: var(--shadow-hover);
  transform: translateY(-6px);
}

.card__title {
  font-size: 1.25rem;
  margin-bottom: 18px;
}

.button {
  align-items: center;
  border: 1px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  display: inline-flex;
  font-weight: 600;
  justify-content: center;
  min-height: 46px;
  padding: 12px 22px;
  transition: background-color var(--transition), border-color var(--transition), color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.button:hover {
  transform: translateY(-3px);
}

.button--primary {
  background: var(--color-primary);
  box-shadow: 0 12px 28px rgba(37, 99, 235, 0.28);
  color: var(--color-white);
}

.button--primary:hover {
  background: var(--color-primary-dark);
}

.button--outline {
  background: var(--color-white);
  border-color: var(--color-gray-light);
  color: var(--color-primary);
}

.button--outline:hover {
  border-color: var(--color-primary);
}

.button--small {
  background: rgba(37, 99, 235, 0.09);
  color: var(--color-primary);
  min-height: 40px;
  padding: 9px 16px;
}

.button--small:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

/* ==============================
   Navigasi
================================= */
.navbar {
  align-items: center;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid rgba(226, 232, 240, 0.85);
  display: flex;
  gap: 20px;
  justify-content: space-between;
  left: 0;
  padding: 16px max(20px, calc((100vw - 1120px) / 2 + 20px));
  position: fixed;
  right: 0;
  top: 0;
  transition: box-shadow var(--transition), padding var(--transition);
  z-index: 1000;
}

.navbar.scrolled {
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.08);
  padding-top: 12px;
  padding-bottom: 12px;
}

.navbar__brand {
  color: var(--color-primary);
  font-size: 1.2rem;
  font-weight: 700;
  white-space: nowrap;
}

.navbar__menu {
  align-items: center;
  display: flex;
  gap: 8px;
}

.navbar__link {
  border-radius: 8px;
  color: var(--color-gray);
  display: block;
  font-size: 0.92rem;
  font-weight: 500;
  padding: 8px 12px;
  transition: background-color var(--transition), color var(--transition);
}

.navbar__link:hover,
.navbar__link.active {
  background: rgba(37, 99, 235, 0.1);
  color: var(--color-primary);
}

.navbar__toggle {
  background: transparent;
  border: 0;
  cursor: pointer;
  display: none;
  height: 38px;
  width: 38px;
}

.navbar__toggle span {
  background: var(--color-text);
  border-radius: 999px;
  display: block;
  height: 2px;
  margin: 6px auto;
  transition: transform var(--transition), opacity var(--transition);
  width: 22px;
}

.navbar__toggle.active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.navbar__toggle.active span:nth-child(2) {
  opacity: 0;
}

.navbar__toggle.active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* ==============================
   Hero
================================= */
.hero {
  align-items: center;
  background:
    radial-gradient(circle at 14% 18%, rgba(20, 184, 166, 0.1), transparent 30%),
    linear-gradient(135deg, #eff6ff 0%, #ffffff 48%, #f8fafc 100%);
  display: flex;
  min-height: 100vh;
  padding: 132px 20px 84px;
  text-align: center;
}

.hero__content {
  margin: 0 auto;
  max-width: 780px;
}

.hero__photo {
  border: 8px solid var(--color-white);
  border-radius: 50%;
  box-shadow: 0 22px 48px rgba(37, 99, 235, 0.2);
  height: 168px;
  margin: 0 auto 24px;
  object-fit: cover;
  width: 168px;
}

.hero__eyebrow {
  color: var(--color-primary);
  font-weight: 700;
  margin-bottom: 8px;
}

.hero__title {
  color: var(--color-text);
  font-size: clamp(2.25rem, 6vw, 4.5rem);
  line-height: 1.12;
  margin-bottom: 14px;
}

.hero__role {
  color: var(--color-accent);
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 600;
  margin-bottom: 18px;
}

.hero__description {
  color: var(--color-gray);
  margin: 0 auto 28px;
  max-width: 690px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}

/* ==============================
   Tentang Saya
================================= */
.about {
  display: grid;
  gap: 24px;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
}

.about__card {
  padding: 28px;
}

.about__card p + p {
  margin-top: 14px;
}

.about__list {
  display: grid;
  gap: 12px;
}

.about__list li {
  color: var(--color-gray);
}

.about__list strong {
  color: var(--color-text);
}

/* ==============================
   Pendidikan Timeline
================================= */
.timeline {
  margin: 0 auto;
  max-width: 820px;
  position: relative;
}

.timeline::before {
  background: var(--color-gray-light);
  bottom: 0;
  content: "";
  left: 21px;
  position: absolute;
  top: 0;
  width: 2px;
}

.timeline__item {
  display: grid;
  gap: 22px;
  grid-template-columns: 44px 1fr;
  position: relative;
}

.timeline__item + .timeline__item {
  margin-top: 26px;
}

.timeline__dot {
  background: var(--color-primary);
  border: 7px solid #dbeafe;
  border-radius: 50%;
  height: 24px;
  margin: 6px auto 0;
  position: relative;
  width: 24px;
  z-index: 1;
}

.timeline__content {
  padding: 24px;
}

.timeline__year {
  color: var(--color-primary);
  display: inline-block;
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.timeline__content h3 {
  margin-bottom: 8px;
}

.timeline__content p {
  color: var(--color-gray);
}

/* ==============================
   Pengalaman Kerja
================================= */
.experience-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.experience-card {
  padding: 26px;
}

.experience-card__year {
  color: var(--color-primary);
  display: inline-block;
  font-size: 0.88rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.experience-card h3 {
  margin-bottom: 8px;
}

.experience-card__role {
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: 12px;
}

.experience-card p:last-child {
  color: var(--color-gray);
}

/* ==============================
   Skill Progress Bar
================================= */
.skill-grid {
  display: grid;
  gap: 22px 28px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.skill-item {
  background: var(--color-white);
  border: 1px solid var(--color-gray-light);
  border-radius: var(--radius-card);
  padding: 20px;
}

.skill-item__header {
  align-items: center;
  display: flex;
  font-weight: 600;
  justify-content: space-between;
  margin-bottom: 10px;
}

.progress {
  background: #e5edf7;
  border-radius: 999px;
  height: 12px;
  overflow: hidden;
}

.progress span {
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: inherit;
  display: block;
  height: 100%;
  transform-origin: left;
  transition: width 1s ease;
}

/* ==============================
   Portofolio
================================= */
.portfolio-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.portfolio-card {
  overflow: hidden;
}

.portfolio-card img {
  aspect-ratio: 16 / 10;
  background: #dbeafe;
  height: auto;
  object-fit: cover;
  width: 100%;
}

.portfolio-card__body {
  padding: 22px;
}

.portfolio-card__body h3 {
  margin-bottom: 10px;
}

.portfolio-card__body p {
  color: var(--color-gray);
  margin-bottom: 18px;
}

/* ==============================
   Kontak
================================= */
.contact {
  margin: 0 auto;
  max-width: 720px;
}

.contact__form {
  display: grid;
  gap: 12px;
  padding: 28px;
}

.contact__form label {
  font-weight: 600;
}

.contact__form input,
.contact__form textarea {
  background: var(--color-soft);
  border: 1px solid var(--color-gray-light);
  border-radius: 8px;
  color: var(--color-text);
  outline: none;
  padding: 13px 14px;
  transition: border-color var(--transition), box-shadow var(--transition), background-color var(--transition);
  width: 100%;
}

.contact__form input:focus,
.contact__form textarea:focus {
  background: var(--color-white);
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

.contact__form textarea {
  resize: vertical;
}

.contact__status {
  color: var(--color-primary);
  font-size: 0.94rem;
  font-weight: 600;
  min-height: 24px;
}

/* ==============================
   Footer dan Back to Top
================================= */
.footer {
  background: var(--color-text);
  color: var(--color-white);
  padding: 24px 20px;
  text-align: center;
}

.back-to-top {
  align-items: center;
  background: var(--color-primary);
  border: 0;
  border-radius: 50%;
  bottom: 24px;
  box-shadow: 0 14px 34px rgba(37, 99, 235, 0.3);
  color: var(--color-white);
  cursor: pointer;
  display: flex;
  font-size: 1.35rem;
  height: 46px;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  position: fixed;
  right: 24px;
  transform: translateY(16px);
  transition: opacity var(--transition), transform var(--transition), background-color var(--transition);
  width: 46px;
  z-index: 900;
}

.back-to-top:hover {
  background: var(--color-primary-dark);
}

.back-to-top.show {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

/* ==============================
   Animasi
================================= */
.fade-in {
  animation: fadeInUp 0.9s ease both;
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.75s ease, transform 0.75s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }

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

/* ==============================
   Responsive Tablet
================================= */
@media (max-width: 980px) {
  .navbar__toggle {
    display: block;
  }

  .navbar__menu {
    align-items: stretch;
    background: var(--color-white);
    border: 1px solid var(--color-gray-light);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-soft);
    display: none;
    flex-direction: column;
    gap: 4px;
    left: 20px;
    padding: 12px;
    position: absolute;
    right: 20px;
    top: calc(100% + 12px);
  }

  .navbar__menu.show {
    display: flex;
  }

  .about,
  .experience-grid,
  .portfolio-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ==============================
   Responsive Mobile
================================= */
@media (max-width: 720px) {
  .section {
    padding: 72px 0;
  }

  .hero {
    min-height: auto;
    padding-top: 118px;
  }

  .hero__photo {
    height: 138px;
    width: 138px;
  }

  .hero__actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .about,
  .experience-grid,
  .portfolio-grid,
  .skill-grid {
    grid-template-columns: 1fr;
  }

  .timeline::before {
    left: 16px;
  }

  .timeline__item {
    gap: 16px;
    grid-template-columns: 34px 1fr;
  }

  .timeline__dot {
    height: 20px;
    width: 20px;
  }

  .about__card,
  .contact__form,
  .experience-card,
  .timeline__content {
    padding: 22px;
  }
}

@media (max-width: 420px) {
  .container {
    padding: 0 16px;
  }

  .navbar {
    padding-left: 16px;
    padding-right: 16px;
  }

  .navbar__menu {
    left: 16px;
    right: 16px;
  }

  .back-to-top {
    bottom: 18px;
    right: 18px;
  }
}