/* ==========================================================================
   Layout — navigation, footer, buttons
   ========================================================================== */

/* Navigation */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: color-mix(in srgb, var(--bg) 85%, transparent);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 1000;
    padding: 1.15rem 0;
    border-bottom: 1px solid transparent;
    transition: all 0.3s ease;
}

nav.scrolled {
    border-bottom-color: var(--border);
}

.nav-container {
    max-width: var(--max-w);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
    gap: 1rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text);
    text-decoration: none;
    letter-spacing: -0.01em;
}

.logo span {
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 1.75rem;
}

.nav-links a {
    color: var(--text);
    text-decoration: none;
    font-size: 1.05rem;
    font-weight: 500;
    transition: color 0.2s ease;
    opacity: 0.78;
}

.nav-links a:hover {
    color: var(--accent);
    opacity: 1;
}

.nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.75rem 1.4rem;
    background: var(--gradient);
    color: white;
    border-radius: 999px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    box-shadow: 0 6px 20px rgba(0, 212, 255, 0.28);
    transition: transform 0.2s ease, box-shadow 0.25s ease;
}

.nav-cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 22px rgba(0, 212, 255, 0.34);
}

.theme-toggle {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
    padding: 0.55rem 0.95rem;
    border-radius: 999px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    transition: all 0.2s ease;
}

.theme-toggle:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 1.75rem;
    border-radius: 999px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.25s ease;
}

.btn-primary {
    background: var(--gradient);
    color: white;
    box-shadow: 0 10px 25px rgba(0, 212, 255, 0.25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 35px rgba(0, 212, 255, 0.4);
}

.btn-ghost {
    background: transparent;
    color: var(--text);
    border-color: var(--border-strong);
}

.btn-ghost:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* Footer */
footer {
    background: var(--bg);
    color: var(--text-muted);
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--border);
    font-size: 0.95rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2.5rem;
}

.footer-brand .footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text);
    text-decoration: none;
    letter-spacing: -0.01em;
    margin-bottom: 0.85rem;
    display: inline-block;
}

.footer-brand .footer-logo span {
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.footer-brand p {
    font-size: 1rem;
    color: var(--text-muted);
    line-height: 1.6;
    max-width: 360px;
}

.footer-col h5 {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--text);
    margin-bottom: 1rem;
}

.footer-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.footer-col a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.98rem;
    transition: color 0.2s ease;
}

.footer-col a:hover {
    color: var(--accent);
}

.footer-bottom {
    border-top: 1px solid var(--border);
    padding-top: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.92rem;
    color: var(--text-soft);
}

.footer-meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-meta .dot-sep {
    opacity: 0.5;
}

/* Nav Dropdown — "Layanan" item with sub-links */
.nav-dropdown {
    position: relative;
}

.nav-dropdown-menu {
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 50%;
    transform: translateX(-50%);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 0.5rem 0;
    min-width: 160px;
    list-style: none;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
    transform: translateX(-50%) translateY(-4px);
    z-index: 100;
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu {
    opacity: 1;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
}

.nav-dropdown-menu li a {
    display: block;
    padding: 0.55rem 1.25rem;
    color: var(--text);
    text-decoration: none;
    font-size: 1rem;
    font-weight: 500;
    opacity: 0.85;
    transition: color 0.2s ease, opacity 0.2s ease;
    white-space: nowrap;
}

.nav-dropdown-menu li a:hover {
    color: var(--accent);
    opacity: 1;
}

/* Dropdown trigger indicator */
.nav-dropdown>a::after {
    content: ' ▾';
    font-size: 0.75em;
    opacity: 0.6;
}

/* Active nav state */
.nav-links a.active,
.nav-dropdown > a.active {
  color: var(--accent);
  opacity: 1;
}
.nav-links a.active::after {
  content: '';
  display: block;
  height: 2px;
  background: var(--gradient);
  border-radius: 2px;
  margin-top: 2px;
}

/* Hamburger — hanya tampil < 900px (default hidden, shown in responsive.css) */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  border: 0;
  cursor: pointer;
  padding: 0.4rem;
}
.nav-toggle-bar {
  width: 24px;
  height: 2px;
  background: var(--text);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

/* Language switcher (Pemilih_Bahasa) */
.lang-switcher {
  display: inline-flex;
  align-items: center;
  gap: 0.15rem;
  margin-left: 0.5rem;
}
.lang-switcher .lang-option {
  padding: 0.2rem 0.45rem;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  opacity: 0.6;
  text-decoration: none;
  color: var(--text);
}
.lang-switcher .lang-option:hover {
  opacity: 0.85;
}
.lang-switcher .lang-option[aria-current="true"] {
  opacity: 1;
  background: var(--surface, rgba(127, 127, 127, 0.15));
}
@media (max-width: 900px) {
  .lang-switcher {
    margin-left: 0;
  }
}