:root {
  --black: #000000;
  --mint: #CFFFE2;
  --aqua: #A2D5C6;
  --light: #F6F6F6;
  --text: #1e1e1e;
  --soft-aqua: #bde7d6;

  /* --- DARK MODE VARIABLES --- */
  --dark-background: #121212;
  --dark-surface: #1e1e1e;
  --dark-text: #e0e0e0;
  --dark-accent: #66bfae;
}
html, body {
  overflow-x: hidden;
}


/* --- BASE STYLES --- */
body {
  background-color: var(--light);
  color: var(--text);
  font-family: 'Poppins', sans-serif;
  scroll-behavior: smooth;
  transition: background-color 0.4s, color 0.4s;
}

body.dark-mode {
  background-color: var(--dark-background);
  color: var(--dark-text);
}

section {
  padding: 60px 15px;
  transition: background-color 0.4s, color 0.4s;
}

.section-title {
  font-weight: 700;
  margin-bottom: 40px;
  text-align: center;
}

/* --- NAVBAR --- */
.navbar {
  background-color: rgba(162, 213, 198, 0.85); /* var(--aqua) / mint */
  backdrop-filter: blur(10px);
  transition: all 0.4s ease;
}

.navbar .navbar-brand {
  color: var(--text);
  font-weight: 600;
  transition: color 0.4s;
}

.navbar .nav-link {
  color: var(--text);
  font-weight: 500;
  transition: color 0.4s;
}

/* Navbar Scrolled */
.navbar.scrolled {
  background-color: rgba(60, 60, 60, 0.85);
}

.navbar.scrolled .navbar-brand,
.navbar.scrolled .nav-link {
  color: var(--mint);
}

/* --- NAVBAR FIXED DARK MODE --- */
.navbar {
  background-color: rgba(162, 213, 198, 0.85); /* Light mode */
  backdrop-filter: blur(10px);
  transition: all 0.4s ease;
}

.navbar .navbar-brand,
.navbar .nav-link {
  color: var(--text);
  font-weight: 500;
  transition: color 0.4s;
}

.navbar.scrolled {
  background-color: rgba(60, 60, 60, 0.85);
}

.navbar.scrolled .navbar-brand,
.navbar.scrolled .nav-link {
  color: var(--mint);
}

/* DARK MODE NAVBAR FIX */
body.dark-mode .navbar {
  background-color: rgba(18, 18, 18, 0.95) !important;
}

body.dark-mode .navbar.scrolled {
  background-color: rgba(18, 18, 18, 0.95) !important;
}

body.dark-mode .navbar .navbar-brand,
body.dark-mode .navbar .nav-link {
  color: var(--mint) !important;
}

body.dark-mode .navbar .nav-link:hover,
body.dark-mode .navbar .navbar-brand:hover {
  color: var(--dark-accent) !important;
}

/* --- DROPDOWN LANGUAGE --- */
.navbar .dropdown-menu {
  background-color: var(--light);
  border: 1px solid var(--aqua);
  transition: background-color 0.4s, color 0.4s;
}

.navbar .dropdown-item {
  color: var(--text);
  transition: background-color 0.3s, color 0.3s;
}

.navbar .dropdown-item:hover {
  background-color: var(--mint);
  color: var(--black);
}

/* DARK MODE DROPDOWN */
body.dark-mode .navbar .dropdown-menu {
  background-color: var(--dark-surface);
  border-color: var(--dark-accent);
}

body.dark-mode .navbar .dropdown-item {
  color: var(--dark-text);
}

body.dark-mode .navbar .dropdown-item:hover {
  background-color: var(--dark-accent);
  color: var(--black);
}

/* LANG TOGGLE BUTTON */
#currentLang {
  color: var(--text);
  font-weight: 500;
  cursor: pointer;
  transition: color 0.3s;
}

#currentLang:hover {
  color: var(--mint);
}

body.dark-mode #currentLang {
  color: var(--mint);
}

body.dark-mode #currentLang:hover {
  color: var(--dark-accent);
}


/* --- RESPONSIVE FIX --- */
@media (max-width: 992px) {
  .navbar .nav-link {
    margin-bottom: 0.5rem;
  }
  .navbar .dropdown-menu {
    width: 100%;
  }
}


/* --- THEME TOGGLE --- */
.toggle-theme {
  border: 2px solid var(--black);
  border-radius: 50px;
  padding: 4px 10px;
  font-weight: 600;
  color: var(--black);
  cursor: pointer;
  transition: all 0.3s;
  font-size: 0.9rem;
}

.toggle-theme:hover {
  background-color: var(--black);
  color: var(--mint);
}

body.dark-mode .toggle-theme {
  border-color: var(--mint);
  color: var(--mint);
}

body.dark-mode .toggle-theme:hover {
  background-color: var(--mint);
  color: var(--black);
}

/* --- HERO --- */
.hero {
  background-color: var(--light);
  text-align: center;
  padding: 100px 15px;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 700;
}

.hero p {
  color: var(--text);
}

body.dark-mode .hero {
  background-color: var(--dark-background);
  color: var(--dark-text);
}

body.dark-mode .hero p {
  color: var(--dark-text);
}

/* --- BUTTONS --- */
.btn-custom {
  background-color: var(--mint);
  color: var(--black);
  border-radius: 50px;
  padding: 10px 20px;
  font-weight: 600;
  transition: all 0.3s ease;
}

.btn-custom:hover {
  background-color: var(--dark-accent);
  color: var(--black);
}

body.dark-mode .btn-custom {
  background-color: var(--dark-accent);
  color: var(--black);
}

body.dark-mode .btn-custom:hover {
  background-color: var(--dark-accent);
  color: var(--black);
}

/* --- SECTION BACKGROUNDS --- */
#about { background-color: var(--soft-aqua); color: var(--text); }
#tech { background-color: var(--mint); color: var(--text); }
#projects { background-color: var(--aqua); color: var(--text); }
#experience { background-color: var(--light); color: var(--text); }
#find-me { background-color: var(--soft-aqua); color: var(--text); }
#certifications { background-color: var(--light); color: var(--text); }
#contact { background-color: var(--aqua); color: var(--dark-background); }

/* --- DARK MODE SECTIONS --- */
body.dark-mode #about { background-color: var(--dark-surface); color: var(--dark-text); }
body.dark-mode #tech { background-color: #1a3834; color: var(--dark-text); } /* sedikit mint gelap */
body.dark-mode #projects { background-color: #16645b; color: var(--dark-text); } /* aqua gelap */
body.dark-mode #experience { background-color: var(--dark-background); color: var(--dark-text); }
body.dark-mode #find-me { background-color: #1e3f39; color: var(--dark-text); } /* soft aqua gelap */
body.dark-mode #certifications { background-color: var(--dark-surface); color: var(--dark-text); }
body.dark-mode #contact { background-color: #16645b; color: var(--dark-text); }



/* --- ABOUT SECTION --- */
#about img {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--light);
  margin-bottom: 20px;
}

body.dark-mode #about img {
  border-color: var(--mint);
}

/* --- TECH ICONS --- */
.tech-icons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 30px;
  font-size: 2.5rem;
}

.tech-icons i {
  color: var(--text);
  transition: color 0.3s, transform 0.3s;
}

.tech-icons i:hover {
  transform: scale(1.1);
}

body.dark-mode .tech-icons i {
  color: var(--dark-accent);
}

body.dark-mode .tech-icons i:hover {
  color: var(--mint);
}

/* --- PROJECTS CARDS --- */
.card {
  border: none;
  border-radius: 1rem;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  background-color: var(--light);
  color: var(--text);
  transition: transform 0.3s, background-color 0.4s, color 0.4s;
  margin-bottom: 20px;
}

.card:hover {
  transform: translateY(-5px);
}

body.dark-mode .card {
  background-color: var(--dark-surface);
  color: var(--dark-text);
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

/* --- FIND ME SECTION --- */
#find-me .social-links a {
  font-size: 2rem;
  margin: 0 10px;
  color: var(--text);
  transition: all 0.3s ease;
}

#find-me .social-links a:hover {
  color: var(--mint);
  transform: translateY(-3px);
}

body.dark-mode #find-me .social-links a {
  color: var(--dark-accent);
}

body.dark-mode #find-me .social-links a:hover {
  color: var(--mint);
}

/* --- CERTIFICATIONS --- */
#certifications .card img {
  height: 120px;
  width: 100%;
  object-fit: contain;
  margin-bottom: 10px;
}

#certifications .card {
  background: none;
  border: none;
  display: inline-block;
  margin: 15px;
}

/* --- FOOTER --- */
.footer {
  background-color: var(--dark-background);
  color: var(--dark-text);
  text-align: center;
  padding: 20px 15px;
}

body.dark-mode .footer {
  background-color: var(--dark-background);
  color: var(--dark-text);
}

/* --- RESPONSIVE --- */
@media (max-width: 992px) {
  .hero h1 { font-size: 2.5rem; }
  .tech-icons { gap: 20px; font-size: 2.2rem; }
  .btn-custom { padding: 8px 18px; font-size: 0.9rem; }
}

@media (max-width: 768px) {
  .hero h1 { font-size: 2.3rem; }
  .hero p { font-size: 1rem; }
  .tech-icons { gap: 18px; font-size: 2rem; }
  .card { margin-bottom: 15px; }
  .toggle-theme { padding: 4px 10px; font-size: 0.85rem; }
}

@media (max-width: 576px) {
  .hero h1 { font-size: 2rem; }
  .hero p { font-size: 0.95rem; }
  .tech-icons { gap: 15px; font-size: 1.8rem; }
  .btn-custom { padding: 6px 14px; font-size: 0.85rem; }
  .social-links a { font-size: 1.3rem; margin: 0 6px; }
}
/* Horizontal Timeline - Desktop */
.horizontal-timeline {
  display: flex;
  justify-content: space-between; /* merata */
  align-items: center;
  position: relative;
  margin: 3rem 0;
  padding: 0 1rem;
  overflow-x: auto;
  scroll-behavior: smooth;
}

.timeline-line {
  position: absolute;
  top: 50%;
  left: 0;
  height: 4px;
  width: 100%;
  background-color: var(--aqua);
  transform: translateY(-50%);
  z-index: 1;
}

.timeline-item {
  position: relative;
  flex: 1 1 auto;
  text-align: center;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 180px;
}

.timeline-dot {
  width: 16px;
  height: 16px;
  background-color: var(--mint);
  border-radius: 50%;
  border: 3px solid var(--light);
  box-shadow: 0 0 0 2px var(--soft-aqua);
  z-index: 2;
  margin-bottom: 1rem;
  flex-shrink: 0;
  transition: background-color 0.4s, border 0.4s, box-shadow 0.4s;
}

.timeline-content {
  background-color: var(--light);
  padding: 1rem;
  border-radius: 0.5rem;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
  color: var(--text);
  transition: background-color 0.4s, color 0.4s, box-shadow 0.4s;
  width: 100%;
  max-width: 250px;
  word-wrap: break-word;
}

.timeline-item:hover .timeline-content {
  transform: translateY(-5px);
  transition: transform 0.3s ease;
}

/* --- Dark Mode --- */
body.dark-mode .timeline-line {
  background-color: var(--soft-aqua);
}

body.dark-mode .timeline-dot {
  background-color: var(--aqua); /* lebih terang supaya terlihat */
  border: 3px solid var(--dark-surface);
  box-shadow: 0 0 0 2px rgba(255,255,255,0.2);
}

body.dark-mode .timeline-content {
  background-color: var(--dark-surface);
  color: var(--light);
  box-shadow: 0 2px 6px rgba(0,0,0,0.6);
}
/* --- Timeline Dark Mode --- */
body.dark-mode #experience .timeline-content {
  background-color: var(--dark-surface);
  color: var(--light);
  box-shadow: 0 2px 6px rgba(0,0,0,0.6);
}

/* Override Bootstrap text-muted */
body.dark-mode #experience .timeline-content p.text-muted {
  color: var(--light) !important;
}

/* Jika ada small/span di dalam p */
body.dark-mode #experience .timeline-content p.text-muted small,
body.dark-mode #experience .timeline-content p.text-muted span {
  color: var(--light) !important;
}

/* Badge otomatis dark mode */
body.dark-mode #experience .timeline-content .badge.bg-secondary {
  background-color: var(--dark-accent);
  color: #000 !important;
}

/* Dot & line */
body.dark-mode .timeline-dot {
  background-color: var(--aqua);
  border: 3px solid var(--dark-surface);
  box-shadow: 0 0 0 2px rgba(255,255,255,0.2);
}
body.dark-mode .timeline-line {
  background-color: var(--soft-aqua);
}


/* Responsive Mobile */
@media (max-width: 768px) {
  .horizontal-timeline {
    flex-direction: column;
    padding: 0;
  }

  .timeline-line {
    top: 0;
    left: 50%;
    width: 4px;
    height: 100%;
    transform: translateX(-50%);
  }

  .timeline-item {
    text-align: left;
    padding: 2rem 1rem;
    width: 100%;
  }

  .timeline-dot {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    margin-bottom: 0;
  }

  .timeline-content {
    margin-top: 2rem;
    max-width: none;
  }
}