/* ============ Vars & Resets ============ */
:root{
  --nav-bg: #111827;              /* mas refined na dark */
  --nav-fg: #f9fafb;              /* text */
  --nav-accent: #60a5fa;          /* blue */
  --nav-accent-2: #f43f5e;        /* red/pink for active */
  --nav-border: rgba(255,255,255,.08);
  --nav-shadow: 0 8px 28px rgba(0,0,0,.25);
}

.gn-no-scroll { overflow: hidden; }

/* ============ Navbar ============ */
.navbar {
  background-color: var(--nav-bg);
  color: var(--nav-fg);
  position: sticky;   /* manatili sa top habang scroll */
  top: 0;
  z-index: 50;
  box-shadow: var(--nav-shadow);
  border-bottom: 1px solid var(--nav-border);
  overflow: visible;  /* kailangan para sa panel animation */
}

/* overlay (pinreserve ang original hover logic mo) */
.navbar::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(1200px 300px at 0% 0%, rgba(255,0,0,0.10), transparent 60%);
  opacity: 0;
  transition: opacity .3s ease-in-out;
  pointer-events: none;
  z-index: 0;
}
.navbar:hover::before { opacity: 1; }

/* layout row: burger + logo sa kaliwa, optional actions sa kanan */
.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: calc(.5rem + env(safe-area-inset-top)) 1rem .5rem;
  position: relative;
  z-index: 1; /* above overlay */
  max-width: 1200px;
  margin: 0 auto;
}

/* brand (inline SVG) */
.navbar-brand {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-weight: 600;
  letter-spacing: .2px;
  color: var(--nav-fg);
  text-decoration: none;
}
.navbar-brand svg {
  width: 28px; height: 28px;
  color: var(--nav-accent);
  flex: none;
}

/* burger toggle (animated -> X) */
.navbar-toggle {
  appearance: none;
  background: transparent;
  border: 0;
  width: 42px; height: 42px;
  border-radius: .66rem;
  position: relative;
  cursor: pointer;
}
.navbar-toggle:hover { background: rgba(255,255,255,.06); }
.navbar-toggle:focus-visible {
  outline: 2px solid var(--nav-accent);
  outline-offset: 2px;
}
.navbar-toggle .line {
  position: absolute; left: 9px; right: 9px;
  height: 2px; background: var(--nav-fg);
  top: 13px;
  transition: transform .25s ease, opacity .2s ease, top .25s ease;
  border-radius: 2px;
}
.navbar-toggle .line:nth-child(2){ top: 20px; }
.navbar-toggle .line:nth-child(3){ top: 27px; }
.navbar-toggle[aria-expanded="true"] .line:nth-child(1){ top: 20px; transform: rotate(45deg); }
.navbar-toggle[aria-expanded="true"] .line:nth-child(2){ opacity: 0; }
.navbar-toggle[aria-expanded="true"] .line:nth-child(3){ top: 20px; transform: rotate(-45deg); }

/* collapsible panel para sa mobile nav */
.navbar-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
  will-change: max-height;
}
.navbar-panel.is-open { max-height: 60vh; }

/* nav list – pinanatili ang original class names */
.navbar-nav {
  display: flex;
  list-style: none;
  margin: 0; padding: .5rem 1rem 1rem;
  flex-direction: column;
  align-items: stretch;
  gap: .25rem;
}
.nav-item { margin: 0; } /* spacing handled by gap */

/* links (mobile) – mas malaki, tappable, rounded */
.nav-link {
  display: block;
  padding: .875rem 1rem;
  text-decoration: none;
  color: var(--nav-fg);
  position: relative;
  border-radius: .75rem;
  transition: color .2s ease, background-color .2s ease;
}
.nav-link:hover { color: var(--nav-accent); background: rgba(255,255,255,.05); }
.nav-link:focus-visible { outline: 2px solid var(--nav-accent); outline-offset: 2px; }
.nav-link.active {
  color: var(--nav-accent-2);
  background: rgba(244,63,94,.10);
  font-weight: 700;
}

/* i-off ang underline animation sa mobile para malinis */
.nav-link::before { display: none; }

/* ============ Desktop ≥ 769px ============ */
@media (min-width: 769px){
  .navbar-inner { padding: .75rem 1.25rem; }
  .navbar-toggle { display: none; }       /* walang burger sa desktop */
  .navbar-panel  { max-height: none; overflow: visible; }
  .navbar-nav {
    flex-direction: row;
    align-items: center;
    justify-content: center;
    padding: 0 1rem 1rem; /* subtle breathing space sa ilalim ng bar */
    gap: .25rem;
  }
  .nav-item { margin: 0 .25rem; }
  .nav-link {
    padding: .6rem 1rem;
    border-radius: .5rem;
    background: transparent;
  }
  /* ibalik ang nice underline animation sa desktop */
  .nav-link::before{
    content:"";
    position:absolute;
    left: 50%; bottom: .35rem;
    width: 0; height: 2px;
    background-color: var(--nav-accent);
    transform: translateX(-50%);
    transition: width .25s ease;
    display: block;
    border-radius: 2px;
  }
  .nav-link:hover::before { width: 100%; }
}

/* ============ Reduced Motion ============ */
@media (prefers-reduced-motion: reduce){
  .navbar, .nav-link, .navbar-toggle .line, .navbar-panel { transition: none !important; }
}