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

body {
  font-family: 'Segoe UI', Arial, sans-serif;
  background-color: #fafafa;
  color: #1a1a1a;
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

header {
  background-color: #111;
  color: #f5f5f5;
  padding: 50px 20px;
  text-align: center;
  border-bottom: 1px solid #333;
}

header h1 {
  font-size: 2rem;
  font-weight: 300;
  letter-spacing: 2px;
  margin-bottom: 8px;
}

header p {
  font-size: 0.9rem;
  color: #aaa;
  letter-spacing: 1px;
}

nav {
  background-color: #fff;
  border-bottom: 1px solid #e0e0e0;
  padding: 15px 20px;
  position: sticky;
  top: 0;
  z-index: 100;
}

nav ul {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 30px;
}

nav ul li a {
  color: #555;
  font-size: 0.9rem;
  font-weight: 500;
  padding: 6px 10px;
  border-bottom: 2px solid transparent;
  transition: all 0.2s ease;
}

nav ul li a:hover {
  color: #000;
  border-bottom-color: #000;
}

nav ul li a.active {
  color: #000;
  border-bottom-color: #000;
}

.container {
  max-width: 1000px;
  margin: 0 auto;
  width: 100%;
  flex: 1;
}


.content {
  display: flex;
  flex-wrap: wrap;
  gap: 25px;
  padding: 30px 20px;
}

.main {
  flex: 2;
  min-width: 280px;
  background-color: #fff;
  padding: 30px;
  border: 1px solid #e5e5e5;
  border-radius: 4px;
}

.sidebar {
  flex: 1;
  min-width: 220px;
  background-color: #f0f0f0;
  padding: 25px;
  border: 1px solid #e0e0e0;
  border-radius: 4px;
}

.main h2, .sidebar h2 {
  color: #111;
  font-weight: 400;
  font-size: 1.2rem;
  margin-bottom: 15px;
  padding-bottom: 8px;
  border-bottom: 1px solid #ddd;
}

.main p {
  margin-bottom: 15px;
  color: #333;
  font-size: 0.95rem;
}

.sidebar ul {
  list-style: none;
}

.sidebar ul li {
  padding: 8px 0;
  border-bottom: 1px dashed #ccc;
  font-size: 0.9rem;
  color: #444;
}

.sidebar ul li:last-child {
  border-bottom: none;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  margin-bottom: 6px;
  font-size: 0.85rem;
  font-weight: 500;
  color: #222;
  letter-spacing: 0.5px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #ccc;
  background-color: #fafafa;
  border-radius: 3px;
  font-family: inherit;
  font-size: 0.9rem;
  color: #111;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #333;
  background-color: #fff;
}

.form-group textarea {
  resize: vertical;
  min-height: 110px;
}

.btn {
  background-color: #111;
  color: #fff;
  padding: 10px 24px;
  border: none;
  border-radius: 3px;
  cursor: pointer;
  font-size: 0.9rem;
  letter-spacing: 1px;
  transition: background-color 0.2s;
}

.btn:hover {
  background-color: #333;
}


footer {
  background-color: #111;
  color: #888;
  text-align: center;
  padding: 20px;
  font-size: 0.8rem;
  letter-spacing: 1px;
  margin-top: auto;
}   

/* =========================================================
   SCROLL PROGRESS BAR
   ========================================================= */
#scrollProgress {
    position: fixed;
    top: 0;
    left: 0;
    height: 4px;
    width: 0%;
    background: linear-gradient(90deg, #111, #555, #111);
    z-index: 999;
    transition: width 0.1s ease;
}

/* =========================================================
   TOMBOL DARK MODE
   ========================================================= */
#toggleDark {
    position: fixed;
    bottom: 25px;
    right: 25px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: #111;
    color: #fff;
    border: none;
    cursor: pointer;
    font-size: 1.3rem;
    z-index: 998;
    box-shadow: 0 4px 12px rgba(0,0,0,0.25);
    transition: transform 0.25s ease, background-color 0.25s ease;
}

#toggleDark:hover {
    transform: scale(1.1) rotate(15deg);
}

/* =========================================================
   DARK MODE THEME
   ========================================================= */
body.dark {
    background-color: #121212;
    color: #e5e5e5;
}

body.dark header {
    background-color: #000;
    border-bottom-color: #222;
}

body.dark nav {
    background-color: #1a1a1a;
    border-bottom-color: #2a2a2a;
}

body.dark nav ul li a {
    color: #bbb;
}

body.dark nav ul li a:hover,
body.dark nav ul li a.active {
    color: #fff;
    border-bottom-color: #fff;
}

body.dark .main {
    background-color: #1e1e1e;
    border-color: #2a2a2a;
}

body.dark .main h2,
body.dark .sidebar h2 {
    color: #f0f0f0;
    border-bottom-color: #333;
}

body.dark .main p {
    color: #ccc;
}

body.dark .sidebar {
    background-color: #181818;
    border-color: #2a2a2a;
}

body.dark .sidebar ul li {
    color: #bbb;
    border-bottom-color: #333;
}

body.dark .form-group input,
body.dark .form-group textarea {
    background-color: #222;
    border-color: #333;
    color: #eee;
}

body.dark .form-group input:focus,
body.dark .form-group textarea:focus {
    border-color: #777;
    background-color: #2a2a2a;
}

body.dark .btn {
    background-color: #f0f0f0;
    color: #111;
}

body.dark .btn:hover {
    background-color: #ccc;
}

body.dark #toggleDark {
    background-color: #f0f0f0;
    color: #111;
}

body.dark footer {
    background-color: #000;
    color: #777;
}

/* =========================================================
   EFEK PEMBUKA (FADE-IN + SLIDE)
   ========================================================= */
body {
    opacity: 0;
    transition: opacity 0.8s ease;
}

body.loaded {
    opacity: 1;
}

/* Setiap section masuk dengan efek slide */
.container,
header,
nav {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

body.loaded .container,
body.loaded header,
body.loaded nav {
    opacity: 1;
    transform: translateY(0);
}

/* Delay bertahap biar terasa smooth */
body.loaded header { transition-delay: 0.1s; }
body.loaded nav    { transition-delay: 0.25s; }
body.loaded .container { transition-delay: 0.4s; }

/* =========================================================
   LOADING SCREEN (opsional, muncul sebentar)
   ========================================================= */
#loader {
    position: fixed;
    inset: 0;
    background-color: #111;
    color: #f5f5f5;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    letter-spacing: 2px;
    z-index: 9999;
    transition: opacity 0.6s ease, visibility 0.6s ease;
}

#loader.hide {
    opacity: 0;
    visibility: hidden;
}

/* Animasi titik-titik */
#loader::after {
    content: "";
    animation: dots 1.2s steps(4, end) infinite;
}

@keyframes dots {
    0%   { content: ""; }
    25%  { content: "."; }
    50%  { content: ".."; }
    75%  { content: "..."; }
    100% { content: ""; }
}