/*
  Credit: lautandigital.id
*/

:root {
  --color-primary: #4f46e5;
  --color-primary-dark: #4338ca;
  --color-dark: #111827;
  --color-text: #374151;
  --color-light-bg: #f9fafb;
  --color-border: #e5e7eb;
  --max-width: 1100px;
  --transition: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: var(--color-text);
  line-height: 1.6;
  background-color: #fff;
}

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

ul {
  list-style: none;
}

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

.container {
  width: 90%;
  max-width: var(--max-width);
  margin: 0 auto;
}

/* Navbar */
.navbar {
  position: sticky;
  top: 0;
  background: #fff;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.06);
  z-index: 100;
}

.nav-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.logo {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-dark);
}

.logo span {
  color: var(--color-primary);
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  font-weight: 500;
  color: var(--color-text);
  transition: color var(--transition);
}

.nav-links a:hover {
  color: var(--color-primary);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
}

.menu-toggle span {
  width: 26px;
  height: 3px;
  background: var(--color-dark);
  border-radius: 2px;
}

/* Hero */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #eef2ff 0%, #ffffff 100%);
}

.hero-content {
  text-align: left;
}

.hero-greeting {
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  color: var(--color-dark);
  margin-bottom: 0.5rem;
}

.typing {
  font-size: clamp(1.2rem, 3vw, 1.8rem);
  color: var(--color-primary-dark);
  min-height: 2.4rem;
  border-right: 3px solid var(--color-primary-dark);
  display: inline-block;
  white-space: nowrap;
  overflow: hidden;
}

.hero-desc {
  max-width: 560px;
  margin: 1rem 0 2rem;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 0.8rem 1.8rem;
  border-radius: 6px;
  font-weight: 600;
  transition: all var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}

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

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

.btn-outline:hover {
  background: var(--color-primary);
  color: #fff;
}

/* Sections */
.section {
  padding: 5rem 0;
}

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

.section-title {
  text-align: center;
  font-size: 2rem;
  color: var(--color-dark);
  margin-bottom: 2.5rem;
  position: relative;
}

.section-title::after {
  content: "";
  width: 60px;
  height: 4px;
  background: var(--color-primary);
  display: block;
  margin: 0.6rem auto 0;
  border-radius: 2px;
}

/* About */
.about-content p {
  max-width: 760px;
  margin: 0 auto 2.5rem;
  text-align: center;
}

.about-stats {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.stat-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 1.5rem 2.5rem;
  text-align: center;
  min-width: 160px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.03);
}

.stat-card h3 {
  font-size: 2rem;
  color: var(--color-primary);
}

/* Skills */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.skill-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 1.5rem;
}

.skill-card h3 {
  margin-bottom: 0.8rem;
  color: var(--color-dark);
}

.progress-bar {
  background: var(--color-border);
  border-radius: 6px;
  height: 10px;
  overflow: hidden;
}

.progress {
  height: 100%;
  width: 0;
  background: var(--color-primary);
  border-radius: 6px;
  transition: width 1.2s ease;
}

/* Projects */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.8rem;
}

.project-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}

.project-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
}

.project-img {
  height: 160px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 1.1rem;
}

.project-info {
  padding: 1.2rem;
}

.project-info h3 {
  margin-bottom: 0.5rem;
  color: var(--color-dark);
}

.project-tags {
  margin-top: 0.8rem;
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.project-tags span {
  background: var(--color-light-bg);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 0.2rem 0.6rem;
  font-size: 0.8rem;
  color: var(--color-primary-dark);
}

/* Contact */
.contact-form {
  max-width: 600px;
  margin: 0 auto;
  background: #fff;
  padding: 2rem;
  border-radius: 10px;
  border: 1px solid var(--color-border);
}

.form-group {
  margin-bottom: 1.2rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.4rem;
  font-weight: 600;
  color: var(--color-dark);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.7rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-family: inherit;
  font-size: 1rem;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}

.form-status {
  margin-top: 1rem;
  font-weight: 600;
  color: var(--color-primary-dark);
}

/* Footer */
.footer {
  background: var(--color-dark);
  color: #d1d5db;
  padding: 2rem 0;
  text-align: center;
}

.footer-content p {
  margin: 0.2rem 0;
}

.credit a {
  color: #a5b4fc;
  font-weight: 600;
}

.credit a:hover {
  text-decoration: underline;
}

/* Back to top */
.back-to-top {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  border: none;
  font-size: 1.2rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition);
  z-index: 99;
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 70px;
    right: -100%;
    flex-direction: column;
    background: #fff;
    width: 220px;
    height: calc(100vh - 70px);
    padding: 2rem;
    gap: 1.5rem;
    box-shadow: -2px 0 10px rgba(0, 0, 0, 0.08);
    transition: right var(--transition);
  }

  .nav-links.active {
    right: 0;
  }

  .menu-toggle {
    display: flex;
  }

  .hero-buttons {
    justify-content: center;
  }

  .hero-content {
    text-align: center;
  }
}