/* Main Layout Structure */
body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-main);
    overflow-x: hidden;
}

.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Navbar */
.navbar {
    height: var(--navbar-height);
    background-color: rgba(11, 14, 23, 0.95);
    /* Matches bg-primary with opacity */
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-xl);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
}

.brand-logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--text-primary);
    background: linear-gradient(135deg, #fff 0%, #a5b4fc 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Search Bar in Nav */
.nav-search {
    flex: 0 1 480px;
    margin: 0 var(--spacing-xl);
    position: relative;
}

.nav-search input {
    width: 100%;
    background-color: rgba(255, 255, 255, 0.08);
    /* Lighter than bg for contrast */
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-full);
    padding: 10px 20px 10px 45px;
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: var(--transition-fast);
}

.nav-search input:focus {
    background-color: rgba(255, 255, 255, 0.12);
    border-color: var(--accent-color);
    outline: none;
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

.nav-search i {
    position: absolute;
    left: 18px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

/* Nav Links */
.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition-fast);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
    background-color: rgba(255, 255, 255, 0.05);
}

.user-profile-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: var(--accent-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
}

.user-profile-btn:hover {
    box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.1);
}

/* Main Content */
.main-content {
    margin-top: var(--navbar-height);
    padding: var(--spacing-xl);
    flex-grow: 1;
    width: 100%;
    box-sizing: border-box;
    max-width: 1600px;
    margin-left: auto;
    margin-right: auto;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .navbar {
        padding: 0 var(--spacing-md);
        height: 60px;
    }

    .nav-search {
        display: none;
        /* Hide on mobile main nav, maybe show icon */
    }

    .nav-menu span {
        display: none;
        /* Hide text labels if needed */
    }

    .nav-menu {
        gap: var(--spacing-sm);
    }
}