:root {
    --nav-height: 64px;
    --nav-bg: rgba(255, 255, 255, 0.94);
    --nav-bg-scrolled: rgba(10, 16, 24, 0.68);
    --nav-text: #0f172a;
    --nav-muted: #546076;
    --nav-border: rgba(15, 23, 42, 0.08);
    --nav-shadow: 0 18px 40px rgba(15, 23, 42, 0.12);
    --nav-accent: #2b9aa3;
    --nav-accent-strong: #1f7b84;
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    box-sizing: border-box;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 10px 24px;
    background: var(--nav-bg);
    color: var(--nav-text);
    border-bottom: 1px solid var(--nav-border);
    box-shadow: var(--nav-shadow);
    backdrop-filter: blur(14px);
    z-index: 1000;
    transition: background 0.3s ease, box-shadow 0.3s ease, color 0.3s ease, border-color 0.3s ease;
    font-family: "DM Sans", "Open Sans", sans-serif;
    flex-wrap: nowrap;
}

.navbar a {
    color: var(--nav-text);
    text-decoration: none;
    font-weight: 600;
    letter-spacing: 0.01em;
    font-family: "Orbitron", "DM Sans", sans-serif;
    text-transform: uppercase;
    font-size: 0.82rem;
}

.navbar .logo {
    display: flex;
    align-items: center;
    gap: 8px;
}

.navbar .logo img {
    height: 40px;
    width: auto;
    transition: transform 0.2s ease;
}

.navbar .logo:hover img {
    transform: scale(1.03);
}

.navbar .right {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    white-space: nowrap;
    overflow: visible;
    flex-shrink: 0;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.lang-switcher {
    display: inline-flex;
    align-items: center;
}

.lang-switcher select {
    appearance: none;
    border: 1px solid var(--nav-border);
    background: rgba(255, 255, 255, 0.12);
    color: var(--nav-text);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 6px 28px 6px 12px;
    border-radius: 999px;
    cursor: pointer;
    background-image: linear-gradient(45deg, transparent 50%, currentColor 50%),
        linear-gradient(135deg, currentColor 50%, transparent 50%);
    background-position: calc(100% - 16px) 50%, calc(100% - 12px) 50%;
    background-size: 6px 6px, 6px 6px;
    background-repeat: no-repeat;
}

.lang-switcher select option {
    color: #0f172a;
    background: #ffffff;
}

.lang-switcher select:focus {
    outline: 2px solid rgba(43, 154, 163, 0.35);
    outline-offset: 2px;
}

.navbar .right a {
    padding: 8px 12px;
    border-radius: 999px;
    transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.navbar .right a:hover {
    background: rgba(43, 154, 163, 0.14);
    color: var(--nav-accent-strong);
}

.navbar .right .icon {
    display: none;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 12px;
    background: rgba(15, 23, 42, 0.08);
    border: 1px solid var(--nav-border);
    color: var(--nav-text);
    transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.nav-search {
    display: flex;
    justify-content: center;
    flex: 1 1 220px;
    min-width: 0;
}

.nav-search .search-bar {
    width: 100%;
    max-width: 340px;
    min-width: 0;
}

.navbar .right .icon:hover {
    background: rgba(43, 154, 163, 0.2);
    color: var(--nav-accent-strong);
    border-color: rgba(43, 154, 163, 0.4);
}

.navbar.scrolled {
    background: var(--nav-bg-scrolled);
    box-shadow: var(--nav-shadow);
    border-color: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(12px);
}

.transparent-navbar {
    --nav-bg: rgba(8, 14, 22, 0.18);
    --nav-bg-scrolled: rgba(8, 14, 22, 0.62);
    --nav-text: #f8fafc;
    --nav-border: rgba(255, 255, 255, 0.16);
    box-shadow: none;
}

.transparent-navbar .logo img {
    filter: brightness(0) invert(1);
}

.transparent-navbar .right a {
    color: #f8fafc;
}

.transparent-navbar .right a:hover {
    background: rgba(255, 255, 255, 0.18);
    color: #ffffff;
}

.transparent-navbar .lang-switcher select {
    background: rgba(255, 255, 255, 0.12);
    color: #f8fafc;
    border-color: rgba(255, 255, 255, 0.22);
}

.transparent-navbar .right .icon {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.22);
    color: #ffffff;
}

.colored-navbar {
    --nav-bg: rgba(255, 255, 255, 0.94);
    --nav-bg-scrolled: rgba(10, 16, 24, 0.68);
    --nav-text: #0f172a;
}

.navbar.scrolled,
.navbar.scrolled a,
.navbar.scrolled .right .icon {
    color: #f8fafc;
}

.navbar.scrolled .logo img {
    filter: brightness(0) invert(1);
}

.navbar.scrolled .right a:hover {
    background: rgba(255, 255, 255, 0.16);
    color: #ffffff;
}

/* Side Panel Styling */
.sidenav {
    height: 100%;
    width: 0;
    position: fixed;
    z-index: 1001;
    top: 0;
    left: 0;
    background: linear-gradient(165deg, #0c141d 0%, #122433 55%, #0b1117 100%);
    overflow-x: hidden;
    transition: width 0.3s ease;
    padding-top: 80px;
    max-width: 80vw;
}

.sidenav a {
    padding: 12px 18px;
    text-decoration: none;
    font-size: 1rem;
    color: #e2e8f0;
    display: block;
    margin: 6px 14px;
    border-radius: 12px;
    transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
    font-family: "DM Sans", sans-serif;
}

.sidenav a:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #ffffff;
    transform: translateX(4px);
}

.lang-switcher--side {
    padding: 12px 18px;
    margin: 6px 14px;
}

.lang-switcher--side select {
    width: 100%;
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
    color: #e2e8f0;
}

.sidenav .closebtn {
    position: absolute;
    top: 16px;
    right: 20px;
    font-size: 32px;
    color: #f8fafc;
    cursor: pointer;
    transition: color 0.2s ease, transform 0.2s ease;
}

.sidenav .closebtn:hover {
    color: #ffb4b4;
    transform: rotate(90deg);
}

.sidenav-overlay {
    height: 100%;
    width: 100%;
    position: fixed;
    top: 0;
    left: 0;
    background-color: rgba(8, 12, 18, 0.55);
    z-index: 1000;
    display: none;
}

.sidenav a,
.sidenav .closebtn {
    opacity: 0;
    transform: translateX(-100%);
    transition: opacity 0.3s, transform 0.4s ease;
}

.sidenav.open a,
.sidenav.open .closebtn {
    opacity: 1;
    transform: translateX(0);
}

/* Responsive Adjustments */
@media screen and (max-width: 960px) {
    .navbar {
        padding: 8px 14px;
        gap: 10px;
    }

    .nav-search {
        flex: 1 1 160px;
    }

    .nav-search .search-bar {
        max-width: 240px;
    }

    .navbar .right a {
        display: none;
    }

    .navbar .right .lang-switcher {
        display: none;
    }

    .navbar .right .icon {
        display: inline-flex;
    }
}

@media screen and (max-width: 640px) {
    .navbar {
        padding: 8px 10px;
        gap: 8px;
    }

    .nav-search {
        flex: 1 1 auto;
        min-width: 0;
        margin-right: 4px;
    }

    .nav-search .search-bar {
        max-width: 100%;
    }

    .search-bar input[type="text"] {
        font-size: 0.85rem;
        padding: 4px 8px;
    }

    .search-bar button {
        padding: 4px 10px;
    }

    .navbar .logo img {
        height: 34px;
    }
}