/* ═══════════════════════════════════════════════════
   navbar.css  –  Navigation Bar Styles
   د. وسام ميسر – عيادة الأسنان
═══════════════════════════════════════════════════ */

/* ── WRAPPER ──────────────────────────────────── */
#navbar {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 9997;
  padding: 0;
  transition: all 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── ANIMATED TOP LINE ────────────────────────── */
.nav-top-line {
  height: 3px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--accent),
    var(--accent3),
    var(--accent),
    transparent
  );
  background-size: 200% 100%;
  animation: line-slide 4s linear infinite;
}
@keyframes line-slide {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ── INNER CONTAINER ──────────────────────────── */
.nav-inner {
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border-bottom: 1px solid transparent;
  transition: all 0.45s;
  padding: 18px 0;
}
#navbar.scrolled .nav-inner {
  background: var(--bg-nav);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border);
  padding: 10px 0;
  box-shadow: 0 4px 40px rgba(0, 0, 0, 0.25);
}

/* ── BRAND / LOGO ─────────────────────────────── */
.nav-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.nav-logo {
  position: relative;
  width: 52px; height: 52px;
  flex-shrink: 0;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 20px rgba(0, 200, 232, 0.4);
  transition: all 0.4s;
  overflow: hidden;
}
.nav-logo::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.15), transparent);
}
.nav-logo:hover {
  transform: rotate(8deg) scale(1.1);
  box-shadow: 0 0 32px rgba(0, 200, 232, 0.6);
}
.nav-logo i { color: #fff; font-size: 24px; position: relative; z-index: 1; }

/* spinning dashed ring */
.nav-logo-ring {
  position: absolute;
  inset: -4px;
  border-radius: 20px;
  border: 1.5px dashed rgba(0, 200, 232, 0.4);
  animation: spin-slow 8s linear infinite;
}
@keyframes spin-slow { to { transform: rotate(360deg); } }

/* brand text */
.nav-brand-text .clinic-name {
  font-size: 16px;
  font-weight: 900;
  color: var(--text-h);
  letter-spacing: 0.3px;
  line-height: 1.2;
  transition: color 0.4s;
}
.nav-brand-text .clinic-sub {
  font-size: 11px;
  color: var(--accent);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-brand-text .clinic-sub::before {
  content: '';
  width: 16px; height: 1.5px;
  background: var(--accent);
  animation: expand-line 2s ease-in-out infinite;
}
@keyframes expand-line {
  0%,100% { width: 16px; }
  50%     { width: 28px; }
}

/* ── DESKTOP LINKS ────────────────────────────── */
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link-item {
  position: relative;
  padding: 8px 14px;
  border-radius: 10px;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--text-p);
  transition: all 0.3s;
  cursor: pointer;
  overflow: hidden;
}
.nav-link-item::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 10px;
  background: linear-gradient(
    135deg,
    rgba(0, 200, 232, 0.12),
    rgba(0, 200, 232, 0.05)
  );
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s;
}
.nav-link-item:hover::before,
.nav-link-item.active::before { transform: scaleX(1); }
.nav-link-item:hover,
.nav-link-item.active         { color: var(--accent); }

/* dot indicator */
.nav-link-item::after {
  content: '';
  position: absolute;
  bottom: 4px; left: 50%;
  transform: translateX(-50%) scale(0);
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--accent);
  transition: transform 0.3s;
}
.nav-link-item:hover::after,
.nav-link-item.active::after { transform: translateX(-50%) scale(1); }

/* ── CTA BUTTON ───────────────────────────────── */
.btn-nav-cta {
  display: flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff !important;
  border-radius: 12px;
  padding: 10px 22px;
  font-size: 13.5px;
  font-weight: 800;
  box-shadow: 0 4px 20px rgba(0, 200, 232, 0.35);
  transition: all 0.35s;
  border: none;
  position: relative;
  overflow: hidden;
}
.btn-nav-cta::before {
  content: '';
  position: absolute;
  top: 0; right: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: right 0.5s;
}
.btn-nav-cta:hover::before { right: 100%; }
.btn-nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0, 200, 232, 0.5);
  color: #fff;
}

/* ── THEME TOGGLE ─────────────────────────────── */
.theme-toggle {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: var(--glass2);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.35s;
  color: var(--text-p);
  font-size: 17px;
  flex-shrink: 0;
}
.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(0, 200, 232, 0.1);
  transform: rotate(20deg);
}

/* ── MOBILE HAMBURGER ─────────────────────────── */
.mob-toggle {
  display: none;
  width: 44px; height: 44px;
  border-radius: 12px;
  background: var(--glass2);
  border: 1px solid var(--border);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  transition: all 0.3s;
}
.mob-toggle span {
  display: block;
  width: 22px; height: 2px;
  border-radius: 2px;
  background: var(--accent);
  transition: all 0.4s;
  transform-origin: center;
}
.mob-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mob-toggle.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.mob-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── MOBILE DRAWER ────────────────────────────── */
.mobile-drawer {
  position: fixed;
  top: 0; right: -100%;
  width: min(320px, 90vw);
  height: 100dvh;
  background: var(--bg-nav);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  border-left: 1px solid var(--border);
  z-index: 9996;
  transition: right 0.45s cubic-bezier(0.4, 0, 0.2, 1);
  padding: 100px 28px 40px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  overflow-y: auto;
}
.mobile-drawer.open { right: 0; }

.mob-nav-link {
  padding: 14px 18px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 700;
  color: var(--text-p);
  transition: all 0.3s;
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid transparent;
}
.mob-nav-link i {
  color: var(--accent);
  font-size: 16px;
  width: 20px;
  text-align: center;
}
.mob-nav-link:hover {
  background: var(--glass2);
  border-color: var(--border-accent);
  color: var(--accent);
}

/* ── MOBILE OVERLAY ───────────────────────────── */
.mob-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 9995;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s;
  backdrop-filter: blur(4px);
}
.mob-overlay.show { opacity: 1; pointer-events: all; }

/* ── RESPONSIVE ───────────────────────────────── */
@media (max-width: 991px) {
  .mob-toggle { display: flex; }
  .nav-links  { display: none; }
}