/* ============================================================
   navbar.css – Clean navbar with <details> hamburger
   ============================================================ */

/* ---------- RESET ---------- */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* ---------- NAVBAR ---------- */
.navbar {
    background: #1a1a1a;
    color: #ffffff;
    padding: 0.6rem 1.5rem;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 56px;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: #ffffff;
    font-size: 1.15rem;
    font-weight: 600;
}

.navbar-brand .logo-icon {
    font-size: 1.3rem;
    line-height: 1;
}

.logo {
    width: 48px;
    height: auto;
    padding-top:10px;
}

.navbar-brand:hover {
    color: #f8f9fa;
}

/* ---------- DESKTOP MENU ---------- */
.nav-links {
    display: none;
    list-style: none;
    gap: 1.75rem;
    align-items: center;
    margin: 0;
    padding: 0;
}

.nav-links a {
    color: #e9ecef;
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 450;
    padding: 0.3rem 0.1rem;
    position: relative;
    transition: color 0.2s ease;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: #ffffff;
    transition: width 0.25s ease;
}

.nav-links a:hover {
    color: #ffffff;
}

.nav-links a:hover::after {
    width: 100%;
}

/* ---------- MOBILE HAMBURGER ---------- */
.hamburger-wrapper {
    display: block;
    position: relative;
}

.hamburger-wrapper summary {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 4px 2px;
    border-radius: 4px;
    transition: background 0.2s;
}

.hamburger-wrapper summary:hover {
    background: rgba(255, 255, 255, 0.06);
}

/* Remove default summary marker in all browsers */
.hamburger-wrapper summary::-webkit-details-marker {
    display: none;
}
.hamburger-wrapper summary::marker {
    display: none;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2.5px;
    background: #ffffff;
    border-radius: 2px;
    transition: all 0.3s ease;
    transform-origin: center;
}

/* Animate hamburger to X when open */
.hamburger-wrapper[open] .hamburger span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
    width: 26px;
}

.hamburger-wrapper[open] .hamburger span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.hamburger-wrapper[open] .hamburger span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
    width: 26px;
}

/* ---------- MOBILE MENU OVERLAY ---------- */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.92);
    backdrop-filter: blur(8px);
    z-index: 99;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}

.mobile-menu nav {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    text-align: center;
    padding: 2rem;
}

.mobile-menu a {
    font-size: 1.5rem;
    font-weight: 450;
    color: #e9ecef;
    text-decoration: none;
    padding: 0.5rem 1.5rem;
    border-radius: 8px;
    transition: background 0.2s, color 0.2s;
    position: relative;
}

.mobile-menu a::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: #ffffff;
    transition: width 0.25s ease;
}

.mobile-menu a:hover {
    background: rgba(255, 255, 255, 0.06);
    color: #ffffff;
}

.mobile-menu a:hover::after {
    width: 60%;
}

/* Close button - we use a pseudo element or add a close link */
.hamburger-wrapper[open] .mobile-menu::after {
    content: '✕ Close';
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    color: #adb5bd;
    font-size: 0.85rem;
    padding: 0.5rem 1.25rem;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 999px;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
}

.hamburger-wrapper[open] .mobile-menu:hover::after {
    background: rgba(255, 255, 255, 0.12);
    color: #ffffff;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* ---------- DESKTOP BREAKPOINT ---------- */
@media (min-width: 769px) {
    .nav-links {
        display: flex;
    }

    .hamburger-wrapper {
        display: none;
    }

    .navbar {
        padding: 0.6rem 2.5rem;
        min-height: 60px;
    }

    .navbar-brand {
        font-size: 1.25rem;
    }
}

/* ---------- DARK MODE SUPPORT ---------- */
@media (prefers-color-scheme: dark) {
    .mobile-menu {
        background: rgba(0, 0, 0, 0.95);
    }
}