/* ============================================
   css/navbar.css
   Freshers: All navbar styles live here.
   MOBILE FIRST — we write mobile styles first,
   then add tablet and laptop styles below.
   ============================================ */

/* ---------- Navbar Container ---------- */
.navbar {
  position: fixed; /* stays on top while scrolling */
  top: 0;
  left: 0;
  width: 100%;
  height: var(--navbar-height);
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--gap-md);
  z-index: 1000; /* always above everything */
  box-shadow: 0 1px 8px rgba(0, 0, 0, 0.07);
}

/* ========================================
   LOGO SECTION (Top Left)
   ======================================== */
.navbar__logo {
  display: flex;
  align-items: center;
  gap: var(--gap-sm);
  text-decoration: none;
  flex-shrink: 0; /* never shrink the logo */
}

.navbar__logo-img {
  width: 38px;
  height: 38px;
  object-fit: contain;
  border-radius: var(--radius-sm);
}

.navbar__logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.navbar__logo-title {
  font-size: var(--font-md);
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.01em;
  /* Hide full title on mobile — saves space */
  display: none;
}

.navbar__logo-subtitle {
  font-size: var(--font-xs);
  color: var(--color-muted);
  /* Hide subtitle on mobile */
  display: none;
}

/* ========================================
   NAV LINKS (Center)
   Mobile: hidden — shown inside mobile menu
   Laptop: visible inline
   ======================================== */
.navbar__links {
  display: none; /* hidden on mobile */
  list-style: none;
  gap: var(--gap-xl);
  align-items: center;
}

.navbar__links a {
  font-size: var(--font-md);
  font-weight: 600;
  color: var(--color-muted);
  text-decoration: none;
  letter-spacing: 0.01em;
  padding-bottom: 2px;
  transition: color 0.2s ease;
}

.navbar__links a:hover {
  color: var(--color-dark);
}

/* Active link — highlighted in red */
.navbar__links a.active {
  color: var(--color-primary);
  border-bottom: 2px solid var(--color-primary);
}

/* ========================================
   RIGHT SECTION
   ======================================== */
.navbar__right {
  display: flex;
  align-items: center;
  gap: var(--gap-md);
  flex-shrink: 0;
}

/* Gradious brand — hidden on mobile */
.navbar__brand {
  display: none;
  align-items: center;
  gap: var(--gap-sm);
  text-decoration: none;
}

.navbar__brand-img {
  width: 34px;
  height: 34px;
  object-fit: contain;
}

.navbar__brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.navbar__brand-title {
  font-size: var(--font-md);
  font-weight: 700;
  color: var(--color-dark);
}

.navbar__brand-subtitle {
  font-size: var(--font-xs);
  color: var(--color-muted);
}

/* ========================================
   HAMBURGER BUTTON
   Visible on Mobile + Tablet only
   ======================================== */
.navbar__hamburger {
  display: flex; /* visible on mobile */
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
  gap: 5px;
}

.navbar__hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-dark);
  border-radius: 2px;
  transition: all 0.3s ease;
  transform-origin: center;
}

/* Hamburger → X animation when menu is open */
.navbar__hamburger.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.navbar__hamburger.is-open span:nth-child(2) {
  opacity: 0;
}
.navbar__hamburger.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ========================================
   MOBILE MENU DROPDOWN
   Full width panel that slides down
   ======================================== */
.navbar__mobile-menu {
  display: none; /* hidden by default */
  position: fixed;
  top: var(--navbar-height);
  left: 0;
  width: 100%;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  padding: var(--gap-md);
  flex-direction: column;
  gap: var(--gap-xs);
  z-index: 999;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* Show mobile menu when JS adds .is-open */
.navbar__mobile-menu.is-open {
  display: flex;
}

.navbar__mobile-menu a {
  font-size: var(--font-lg);
  font-weight: 600;
  color: var(--color-muted);
  text-decoration: none;
  padding: 10px var(--gap-sm);
  border-radius: var(--radius-sm);
  transition:
    background 0.2s,
    color 0.2s;

  /* Minimum touch target — important for mobile */
  min-height: 44px;
  display: flex;
  align-items: center;
}

.navbar__mobile-menu a:hover {
  background: var(--color-bg);
  color: var(--color-dark);
}

.navbar__mobile-menu a.active {
  color: var(--color-primary);
  background: #fef2f0;
}

/* Gradious brand inside mobile menu */
.navbar__mobile-brand {
  display: flex;
  align-items: center;
  gap: var(--gap-sm);
  padding: var(--gap-sm);
  margin-top: var(--gap-sm);
  border-top: 1px solid var(--color-border);
}

.navbar__mobile-brand img {
  width: 30px;
  height: 30px;
  object-fit: contain;
  border-radius: 50%;
}

.navbar__mobile-brand-title {
  font-size: var(--font-md);
  font-weight: 700;
  color: var(--color-dark);
}

.navbar__mobile-brand-sub {
  font-size: var(--font-xs);
  color: var(--color-muted);
}

/* ========================================
   TABLET — 577px to 992px
   ======================================== */
@media (min-width: 577px) {
  .navbar {
    padding: 0 var(--gap-lg);
  }

  /* Show logo title on tablet */
  .navbar__logo-title {
    display: block;
  }

  /* Show Gradious brand on tablet */
  .navbar__brand {
    display: flex;
  }
}

/* ========================================
   LAPTOP — 993px and above
   ======================================== */
@media (min-width: 993px) {
  .navbar {
    padding: 0 var(--gap-xl);
  }

  /* Show logo subtitle */
  .navbar__logo-subtitle {
    display: block;
  }

  /* Show nav links inline */
  .navbar__links {
    display: flex;
  }

  /* Hide hamburger on laptop */
  .navbar__hamburger {
    display: none;
  }
}