/* File: css/navbar.css */

/* ==========================================
   1. BASE NAVBAR & STICKY STATE
   ========================================== */
.navbar {
    position: sticky;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: all 0.25s ease;
    background-color: var(--clr-bg);
    border-bottom: 1px solid var(--clr-border);
}

.navbar.is-scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

/* ==========================================
   2. ROW 1: TOP BAR
   ========================================== */
.navbar__row-1 {
    height: 60px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 5%;
}

.navbar__left, .navbar__right {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.navbar__hamburger {
    background: none;
    border: none;
    color: var(--clr-text);
    cursor: pointer;
    display: none; /* Hidden on desktop */
    font-size: 1.5rem;
}

.navbar__brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.navbar__logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    background: linear-gradient(90deg, var(--clr-blue), var(--clr-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.navbar__badge {
    background-color: var(--clr-green);
    color: var(--clr-text-inverse);
    font-size: 0.7rem;
    font-weight: bold;
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
}

.navbar__btn-text {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--clr-text);
    text-decoration: none;
    font-weight: 500;
}

.navbar__btn-text:hover { color: var(--clr-blue); }

.btn--gradient {
    background-color: var(--clr-blue);
    color: var(--clr-text-inverse);
    border: none;
    padding: 0.5rem 1.2rem;
    border-radius: 6px;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.25s ease, transform 0.25s ease;
}

.btn--gradient:hover { 
    background-color: var(--clr-purple);
    transform: translateY(-2px); 
}

/* ==========================================
   3. ROW 2: CATEGORY NAV BAR (DESKTOP)
   ========================================== */
.navbar__row-2 {
    min-height: 50px; 
    height: auto; 
    background-color: var(--clr-surface);
    border-top: 1px solid var(--clr-border);
    display: flex;
    align-items: center;
    padding: 0 5%;
}

.navbar__nav {
    display: flex;
    flex-wrap: wrap; /* Allows items to wrap nicely if screen is narrow */
    list-style: none;
    gap: 1.5rem;
    margin: 0;
    padding: 0.5rem 0; 
    align-items: center;
}

.navbar__item { position: relative; }

.navbar__link {
    background: none;
    border: none;
    color: var(--clr-text);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    padding: 0.5rem 0;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    text-decoration: none;
}

.navbar__link:hover { color: var(--clr-blue); }

.chevron { font-size: 0.8rem; transition: transform 0.25s ease; }

/* ==========================================
   4. DESKTOP DROPDOWNS
   ========================================== */
.dropdown__panel {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--clr-card);
    border: 1px solid var(--clr-border);
    border-radius: 0 0 8px 8px;
    min-width: 200px;
    padding: 0.5rem 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.25s ease;
    box-shadow: 0 10px 20px rgba(0,0,0,0.08);
    z-index: 1001;
    white-space: normal; /* Prevents text cutoff */
}

/* Edge behavior: open to the left to avoid screen overflow */
.navbar__item.edge-dropdown .dropdown__panel {
    left: auto;
    right: 0;
}

.navbar__item:hover .dropdown__panel {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.navbar__item:hover .chevron { transform: rotate(180deg); }

.dropdown__link {
    display: block;
    padding: 0.6rem 1.5rem;
    color: var(--clr-text);
    text-decoration: none;
    font-size: 0.9rem;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.dropdown__link:hover { 
    background-color: var(--clr-surface); 
    color: var(--clr-blue);
}

/* ==========================================
   5. MOBILE MENU & ACCORDION
   ========================================== */
.mobile-menu {
    display: none; 
    width: 100%;
    background-color: var(--clr-bg);
    border-top: 1px solid var(--clr-border);
    padding: 1rem 5% 2rem 5%;
    box-shadow: 0 10px 15px rgba(0,0,0,0.05);
    position: absolute;
    top: 60px; 
    left: 0;
    z-index: 999;
    max-height: calc(100vh - 60px);
    overflow-y: auto;
}

/* Controlled by JS */
.mobile-menu.is-open {
    display: block; 
}

/* Accordion Styling */
.mobile-accordion {
    border-bottom: 1px solid var(--clr-surface);
}

.mobile-accordion__btn {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: none;
    border: none;
    padding: 1.2rem 0;
    font-size: 1.05rem;
    color: var(--clr-text);
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    text-decoration: none;
}

.mobile-accordion__btn.is-active {
    color: var(--clr-blue);
}

.mobile-accordion__btn.is-active .chevron {
    transform: rotate(180deg);
}

/* Sub-links container (The gray background box) */
.mobile-accordion__content {
    display: none; 
    flex-direction: column;
    background-color: var(--clr-surface); /* Soft gray background */
    padding: 0.8rem;
    border-radius: 8px; /* Rounded corners */
    margin: 0 0.5rem 1rem 0.5rem;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.02); /* Inner depth */
}

/* Add a smooth fade-and-slide animation when opening */
.mobile-accordion__content.is-expanded {
    display: flex; 
    animation: slideDown 0.25s ease-out;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Individual links (The white cards) */
.mobile-sublink {
    color: var(--clr-text);
    text-decoration: none;
    font-size: 0.95rem;
    padding: 0.8rem 1rem;
    background-color: var(--clr-bg); /* White card */
    border-radius: 6px;
    margin-bottom: 0.4rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05); /* Slight drop shadow */
    border-left: 3px solid transparent;
    transition: all 0.2s ease;
}

.mobile-sublink:last-child {
    margin-bottom: 0;
}

/* Tap/Hover effect */
.mobile-sublink:hover, .mobile-sublink:active {
    color: var(--clr-blue);
    border-left-color: var(--clr-blue); /* Blue accent line on the left */
    transform: translateX(4px); /* Slight nudge to the right */
    box-shadow: 0 2px 6px rgba(0,0,0,0.08);
}

.mobile-auth {
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--clr-border);
    display: flex;
    flex-direction: column;
}

/* ==========================================
   6. MEDIA QUERIES (Responsive Logic)
   ========================================== */
@media (max-width: 900px) {
    /* Hide desktop rows, show hamburger */
    .navbar__row-2 { display: none; }
    .navbar__right { display: none; }
    .navbar__hamburger { display: block; }
}