/* ========== ROOT VARIABLES ========== */
:root {
  --bg: #121212;
  --surface: #1E1E1E;
  --text: #EAEAEA;
  --accent: #FFA500;
  --font-heading: "Poppins", sans-serif;
  --font-body: "Lato", sans-serif;
  --transition: all 0.3s ease;
}

/* ========== RESET & GLOBAL ========== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
}

img {
  max-width: 100%;
  border-radius: 10px;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: auto;
}

/* ========== NAVBAR ========== */
.navbar {
  background-color: var(--surface);
  padding: 1rem 0;
  border-bottom: 1px solid #2a2a2a;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--accent);
}

.logo svg,
.guitar-icon {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  animation: wave 2.5s ease-in-out infinite;
  transform-origin: center;
}

/* Supaya logo tidak melar di layout fleksibel */
.nav-inner {
  flex-wrap: nowrap;
  overflow: hidden;
}

.guitar-icon {
  width: 28px;
  height: 28px;
  animation: wave 2.5s ease-in-out infinite;
  transform-origin: center;
}

@keyframes wave {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}

.nav-links a {
  color: var(--text);
  text-decoration: none;
  margin-left: 1.5rem;
  transition: var(--transition);
}

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

/* ========== HERO SECTION ========== */
.hero {
  padding: 5rem 0;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-content {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 2rem;
}

.hero-text {
  flex: 1;
}

.hero-text h1 {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.hero-text p {
  font-size: 1.1rem;
  color: #bbb;
  margin-bottom: 2rem;
}

.btn-primary {
  background-color: var(--accent);
  color: var(--bg);
  padding: 0.9rem 1.8rem;
  border-radius: 8px;
  font-weight: 700;
  text-decoration: none;
  transition: var(--transition);
}

.btn-primary:hover {
  background-color: #ffb733;
  box-shadow: 0 0 12px var(--accent);
}

.hero-image {
  flex: 1;
  text-align: center;
}

/* ========== FEATURES ========== */
.features {
  background-color: var(--surface);
  padding: 4rem 0;
  text-align: center;
}

.features h2 {
  font-family: var(--font-heading);
  margin-bottom: 2rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.feature-card {
  background: #181818;
  padding: 2rem;
  border-radius: 12px;
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 0 12px rgba(255, 165, 0, 0.2);
}

.feature-card .icon {
  font-size: 2rem;
  display: block;
  margin-bottom: 1rem;
  color: var(--accent);
}

/* ========== LEARNING PATHS ========== */
.learning-paths {
  padding: 5rem 0;
  text-align: center;
}

.path-card {
  background-color: var(--surface);
  border-radius: 12px;
  overflow: hidden;
  transition: var(--transition);
}

.path-card:hover {
  transform: scale(1.02);
  box-shadow: 0 0 15px rgba(255, 165, 0, 0.2);
}

.card-body {
  padding: 1rem 1.5rem 2rem;
}

/* ========== TOOLS SECTION ========== */
.tools {
  background-color: var(--surface);
  padding: 4rem 0;
  text-align: center;
}

.tool-card {
  background-color: #181818;
  padding: 2.5rem 1.5rem;
  border-radius: 10px;
  transition: var(--transition);
  font-weight: 600;
}

.tool-card:hover {
  box-shadow: 0 0 20px rgba(255, 165, 0, 0.25);
  transform: translateY(-5px);
}

/* ========== FOOTER ========== */
.footer {
  background-color: #181818;
  padding: 1.5rem 0;
  text-align: center;
  color: #aaa;
  font-size: 0.9rem;
  border-top: 1px solid #2a2a2a;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
  .hero-content {
    flex-direction: column;
    text-align: center;
  }

  .nav-links {
    display: none;
  }
}