/* Navigation Header */
.navbar {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    border-bottom: 3px solid #2563eb;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 4px 20px rgba(15, 23, 42, 0.15);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.9rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Brand Logo Link Layout */
.brand-logo {
    font-size: 1.6rem;
    font-weight: 800;
    color: #ffffff;
    text-decoration: none;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 0.6rem; /* Space between logo image and text */
}

/* Strict Logo Image Constraints */
.logo-img {
    height: 36px !important;
    max-height: 36px !important;
    width: auto !important;
    object-fit: contain;
    display: block;
    border-radius: 4px;
}

.brand-logo span::after {
    content: '.';
    color: #3b82f6; /* Blue accent dot */
    font-size: 2rem;
    line-height: 1;
}

/* Nav Links & Buttons */
.nav-links {
    display: flex;
    align-items: center;
    gap: 1.75rem;
}

.nav-link {
    text-decoration: none;
    color: #cbd5e1;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.2s ease;
    position: relative;
    padding: 0.25rem 0;
}

.nav-link:hover {
    color: #ffffff;
}

/* Animated hover underline */
.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0%;
    height: 2px;
    background-color: #3b82f6;
    transition: width 0.25s ease-in-out;
    border-radius: 2px;
}

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

/* Vibrant Login Button */
.login-btn {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    border: none;
    padding: 0.5rem 1.25rem;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    color: #ffffff;
    cursor: pointer;
    box-shadow: 0 2px 10px rgba(37, 99, 235, 0.3);
    transition: all 0.2s ease;
}

.login-btn:hover {
    background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.45);
}

.login-btn:active {
    transform: translateY(0);
}