/* Shared Navbar Styles */

/* Common navbar/header container */
.navbar-container,
.topbar,
.dashboard-header,
.homepage-header,
.course-header {
    background: var(--panel);
    border-bottom: 1px solid var(--border);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 100;
}

/* Header container and content layout */
.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    position: relative;
}

.header-actions {
    display: flex;
    gap: 0.75rem;
    z-index: 2;
}

/* Logo styles */
.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: opacity 0.2s ease;
    z-index: 2;
}

.logo:hover {
    opacity: 0.8;
}

.logo-image {
    height: 60px;
    width: auto;
}

/* Page title / heading in center */
.page-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text);
    margin: 0;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Hamburger menu */
.hamburger,
.hamburger-course {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 4px;
    padding: 10px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 2;
    width: 40px;
    height: 40px;
}

.hamburger-line {
    width: 22px;
    height: 2px;
    background: var(--text);
    transition: all 0.3s ease;
    border-radius: 1px;
    transform-origin: center;
}

.hamburger.active .hamburger-line:nth-child(1),
.hamburger-course.active .hamburger-line:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.hamburger.active .hamburger-line:nth-child(2),
.hamburger-course.active .hamburger-line:nth-child(2) {
    opacity: 0;
    transform: scale(0);
}

.hamburger.active .hamburger-line:nth-child(3),
.hamburger-course.active .hamburger-line:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

/* Navbar buttons */
.btn {
    padding: 0.4rem 1rem;
    border-radius: 50px;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s;
    border: 1px solid var(--border);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    font-size: 0.9rem;
    white-space: nowrap;
    min-height: 44px;
}

.btn-outline {
    background: transparent;
    color: var(--text);
    border-color: var(--border);
}

.btn-primary {
    background: var(--text);
    color: var(--panel);
    border-color: var(--text);
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

/* Mobile navbar adjustments */
@media (max-width: 900px) {
    /* Keep fixed positioning on mobile for consistent visibility */
    .navbar-container,
    .topbar,
    .dashboard-header,
    .homepage-header,
    .course-header {
        position: fixed;
        /* Ensure navbar stays above content during bounce scroll */
        -webkit-transform: translate3d(0,0,0);
        transform: translate3d(0,0,0);
    }

    .logo-image {
        height: 50px;
    }

    .page-title {
        font-size: 20px;
    }
    
    .header-container {
        padding: 0 16px;
    }

    .header-content {
        padding: 0.75rem 0;
    }

    .header-actions .btn {
        padding: 0.4rem 0.75rem;
        font-size: 0.85rem;
        min-height: auto;
    }
}