/* Modern Header Styles */
.modern-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    position: relative;
    z-index: 1000;
}

.modern-header .navbar {
    background: transparent !important;
    padding: 1rem 0;
}

/* Header Grid Styles */
.header-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1rem;
    padding: 1.5rem 0;
    max-width: 800px;
    margin: 0 auto;
}

.grid-button {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 15px;
    color: #fff;
    text-decoration: none;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
    min-height: 80px;
}

.grid-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.6s;
}

.grid-button:hover::before {
    left: 100%;
}

.grid-button:hover {
    transform: translateY(-5px) scale(1.05);
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.4);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    color: #fff;
    text-decoration: none;
}

.grid-button i {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    transition: all 0.3s ease;
}

.grid-button:hover i {
    transform: scale(1.2) rotate(5deg);
}

.grid-button span {
    font-size: 0.9rem;
    font-weight: 500;
    text-align: center;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.75rem;
        padding: 1rem 0;
    }
    
    .grid-button {
        padding: 0.75rem;
        min-height: 70px;
    }
    
    .grid-button i {
        font-size: 1.25rem;
    }
    
    .grid-button span {
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .header-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.5rem;
    }
    
    .grid-button {
        padding: 0.5rem;
        min-height: 60px;
    }
    
    .grid-button i {
        font-size: 1rem;
        margin-bottom: 0.25rem;
    }
    
    .grid-button span {
        font-size: 0.75rem;
    }
}

/* Ensure logo not oversized on small screens */
@media (max-width: 768px) {
    .modern-header .navbar-brand img { height: 70px; }
}

.modern-header .navbar-brand img {
    height: 60px;
    transition: transform 0.3s ease;
}

.modern-header .navbar-brand:hover img {
    transform: scale(1.05);
}

.modern-header .nav-link {
    color: rgba(255, 255, 255, 0.9) !important;
    font-weight: 500;
    margin: 0 0.5rem;
    padding: 0.5rem 1rem !important;
    border-radius: 25px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.modern-header .nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.modern-header .nav-link:hover::before {
    left: 100%;
}

.modern-header .nav-link:hover {
    color: #fff !important;
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.modern-header .nav-item.active .nav-link {
    background: rgba(255, 255, 255, 0.2);
    color: #fff !important;
}

.modern-header .dropdown-menu {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border: none;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    margin-top: 0.5rem;
}

.modern-header .dropdown-item {
    color: #333;
    padding: 0.75rem 1.5rem;
    transition: all 0.3s ease;
    border-radius: 10px;
    margin: 0.25rem;
}

.modern-header .dropdown-item:hover {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    transform: translateX(5px);
}

.modern-header .login-button {
    background-color: transparent;
    border: 2px solid #2763E7;
    color: #2763E7;
    border-radius: 8px;
    padding: 8px 20px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.modern-header .login-button:hover {
    background-color: #2763E7;
    color: white;
}

.modern-header .signup-button {
    background-color: #2763E7;
    border: 2px solid #2763E7;
    color: white;
    border-radius: 8px;
    padding: 8px 20px;
    font-weight: 600;
    margin-left: 10px;
    transition: all 0.3s ease;
}

.modern-header .signup-button:hover {
    background-color: #1a4cb8;
    border-color: #1a4cb8;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(39, 99, 231, 0.3);
}

/* Mobile menu styling */
.modern-header .navbar-toggler {
    border: none;
    padding: 0;
}

.modern-header .navbar-toggler:focus {
    outline: none;
    box-shadow: none;
}

.modern-header .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='30' height='30' viewBox='0 0 30 30'%3E%3Cpath stroke='rgba(39, 99, 231, 1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
}

@media (max-width: 991.98px) {
    /* Only show white panel when collapse is open */
    .modern-header .navbar-collapse {
        background-color: transparent;
        padding: 0;
        border-radius: 10px;
        box-shadow: none;
        margin-top: 0;
    }
    .modern-header .navbar-collapse.show {
        background-color: #262525;
        padding: 20px;
        box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
        margin-top: 15px;
    }

    /* Ensure links are visible against white mobile menu background */
    .modern-header .navbar-collapse .nav-link,
    .modern-header .navbar-collapse .navbar-nav .nav-link,
    .modern-header .navbar-collapse .dropdown-toggle {
        color: #333 !important;
    }

    /* Ensure hover/active states stay visible on white background */
    .modern-header .navbar-collapse .nav-link:hover {
        color: #2763E7 !important;
        background: rgba(39, 99, 231, 0.08);
        transform: none;
    }

    .modern-header .navbar-collapse .nav-item.active .nav-link {
        color: #2763E7 !important;
        background: rgba(39, 99, 231, 0.1);
    }

    /* Dropdown menu inside mobile collapse */
    .modern-header .navbar-collapse .dropdown-menu {
        background-color: #fff !important;
        border: 1px solid rgba(0, 0, 0, 0.08);
        box-shadow: none;
    }
    .modern-header .navbar-collapse .dropdown-item {
        color: #333 !important;
    }
    .modern-header .navbar-collapse .dropdown-item:hover,
    .modern-header .navbar-collapse .dropdown-item:focus {
        color: #2763E7 !important;
        background: rgba(39, 99, 231, 0.08);
        transform: none;
    }
    /* Make sure dropdown chevron is visible */
    .modern-header .navbar-collapse .dropdown-toggle::after {
        border-top-color: #333 !important;
    }
    
    .modern-header .nav-link::after {
        display: none;
    }
    
    .modern-header .login-button,
    .modern-header .signup-button {
        display: block;
        width: 100%;
        margin: 10px 0;
        text-align: center;
    }
    /* Strengthen selectors for mobile to defeat navbar-dark defaults */
    .modern-header .navbar-dark .navbar-collapse .navbar-nav .nav-link {
        color: #333 !important;
    }
    /* Ensure icon color is readable in mobile collapse */
    .modern-header .navbar-collapse .nav-link i,
    .modern-header .navbar-collapse .dropdown-item i {
        color: #333 !important;
    }
    /* Extra safety: force dark text on common link-like items when open */
    .modern-header .navbar-collapse.show .nav-link,
    .modern-header .navbar-collapse.show .dropdown-item,
    .modern-header .navbar-collapse.show .dropdown-toggle,
    .modern-header .navbar-collapse.show .navbar-text,
    .modern-header .navbar-collapse.show .nav-link i,
    .modern-header .navbar-collapse.show .dropdown-item i {
        color: #333 !important;
    }
    /* Visual reset when collapsed (closed) */
    .modern-header .navbar-collapse:not(.show) {
        background-color: transparent !important;
        box-shadow: none !important;
        padding: 0 !important;
        margin-top: 0 !important;
    }
}